JP2016049792A - Prime mover chamber cooling apparatus of combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve dust removal effect of a dust prevention net for filtering outside air, in a prime mover chamber cooling apparatus of a combine-harvester, which cools a radiator and the like with outside air sucked by a cooling fan.SOLUTION: A brush moving space 26 is formed between a radiator outer cover 14, in which an outer net 32 is stretched on the outside of a radiator 13 of an engine room 11, and a radiator inner cover 15, which is provided on the inside of the radiator outer cover 14 and in which an inner net 31 is stretched. A dust discharge passage 45, which reaches a cooling fan 12 from the outside of the radiator inner cover 15 through a side part of the radiator 13, is provided. A brush 24a, which comes into rubbing-contact with the inner net 31 of the radiator inner cover 15 when moving forward toward the dust discharge passage 45, is provided in the brush moving space 26. The brush 24a separates from an outer surface of the radiator inner cover 15 during returning movement in which the brush separates from the dust discharge passage 45.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a combine driving chamber cooling apparatus for cooling a driving chamber device such as a radiator with outside air sucked by a cooling fan driven by an engine in the combine.

  As a dust removal device that removes dust adhering to the dust-proof net for inhaling outside air that cools the radiator, a wind-shield plate that partially shields the intake air that passes through the dust-proof net is provided close to the inner surface of the dust-proof net. The dust adherence to the outer surface of the dust screen facing the wind shield plate is lowered and floated, and by moving the wind shield plate back and forth along the inner surface of the dust screen, Is known to be guided to a cooling fan from a dust suction port provided at an end of a reciprocating movement path through a sub suction air path that bypasses the radiator (Patent Document 1).

JP 2010-195368 A

  In the prior art, the wind-shielding plate weakens the suction air of the cooling fan at the mesh part and guides the debris and dust adhering to the outside of the mesh surface to the sub-suction air path. Due to the narrowness, the dust floating by the suction air that circulates around the wind shielding plate may be attracted and adhered to the mesh surface again, resulting in a problem that the dust removing effect is not sufficient.

  Accordingly, the present invention has an object to improve the dust removal effect of the dust-proof net for filtering the outside air in the combined drive chamber cooling device for the combine that cools the radiator and the like with the outside air sucked by the cooling fan provided in the engine room 1. It is.

The problems of the present invention are solved by the following technical means.
The invention as set forth in claim 1 is a combined drive chamber cooling device for a combine that cools the radiator (13) by sucking outside air with a cooling fan (12) provided in the engine room (11). A radiator outer cover (14) with an outer net (32) stretched outside the radiator (13), and a radiator inner cover (15) provided inside the radiator outer cover (14) and with an inner net (31) stretched A brush moving gap (26) is formed between the outer cover (15) and a dust exhaust passage (45) from the outside of the radiator inner cover (15) through the side of the radiator (13) to the cooling fan (12), A brush (24a) that contacts the inner net (31) of the radiator inner cover (15) during the forward movement toward the dust passage (45) is provided in the brush movement gap (26). 4a) is a driving chamber cooling apparatus combine being characterized in that the away from the outer surface of the radiator in the cover (15) at the time of backward movement to move away from the dust channel (45).

  The invention as set forth in claim 2 is characterized in that a windshield plate (32) is provided on the side of the radiator outer cover (14) of the brush (24a), and the drive chamber cooling device for a combine according to claim 1 did.

  The invention according to claim 3 is characterized in that windshield side plates (48, 48) are provided on both sides of the windshield plate (32) with the brush (24a) interposed therebetween. A prime mover cooling device was used.

  The invention according to claim 4 is characterized in that the brush (24a) is reciprocated left and right by driving the lead cam shaft (23). A prime mover cooling device was used.

  According to the first aspect of the present invention, the outside air sucked by the cooling fan (12) is a double of the outer net (32) of the radiator outer cover (14) and the inner net (31) of the radiator inner cover (15). Dust is filtered so that the radiator (13) is not polluted by the net, but the brush moving gap (26) between the radiator outer cover (14) and the radiator inner cover (15) is passed through the forward path of the brush (24a). By the movement, the dust accumulated on the outer surface of the inner net (31) of the radiator inner cover (15) is scraped off and sent to the dust passage (45). When the brush (24a) moves backward, the brush (24a) Since dust is not scratched away from the outer surface of the inner net (31) of the inner cover (15), dust remaining on the radiator inner cover (15) floats and is sucked into the radiator (13) side. And without sending Chiri挨 the radiator in the cover (15) to effectively dust channel (45), a radiator in the cover (15) to maintain the long-term dust removal effect.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, when the brush (24a) scrapes dust on the outer surface of the inner net (31) of the radiator inner cover (15), The wind shield plate (48) prevents the suction air from directly hitting the brush (24a), so that the dust that has been scraped is less likely to be sucked into the net again, and the dust passage (45) effectively removes the dust. Will be sent to.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, since the suction wind that wraps around the brush (24a) side by the wind shielding side plates (48, 48) is eliminated, the dust is more effective. Therefore, it is sent to the dust passage (45).

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, reciprocation of the brush (24a) can be easily configured.

It is a side view of a combine. It is a top view of a combine. It is a partial plane sectional view of a combine. It is a disassembled perspective view of a radiator and a radiator cover. It is a side view of a radiator cover. It is an inner surface figure of a radiator cover. It is a partially expanded inner view of a radiator outer cover. FIG. 8 is a plan sectional view of FIG. 7. FIG. It is the side view which made a part of Glen tank the section. It is a rear view of a Glen tank. It is the side view which made a part of Glen tank of another example into the section.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In this specification, the left and right directions in the forward direction of the combine are referred to as left and right, respectively, the forward direction is referred to as forward, and the reverse direction is referred to as rear.

First, based on FIG.1 and FIG.2, the whole structure of a combine is demonstrated.
A pair of left and right crawler traveling devices 3 and 3 are disposed below the traveling vehicle body 2 of the combine 1, a control unit 4 is disposed on the right front side portion of the traveling vehicle body 2, a Glen tank 5 is disposed on the rear side thereof, and a left side portion thereof. The threshing unit 6 is arranged, and the slaughtering device 7 is arranged behind the threshing unit 6 and the glen tank 5. In front of the control unit 4 and the threshing unit 6, a cutting and conveying unit 8 that conveys the planted cereals to the threshing unit 6 at the rear of the cutting while raising the weeds is provided so as to be movable up and down.

  As shown in FIG. 3, the control unit 4 is provided with an engine room 11 on which the engine E is mounted, and a driver seat 10 on which the driver sits is provided on the engine room 11. A cooling fan 12 is attached to the output shaft of the engine E, a radiator 13 is disposed on the outside thereof, and a side surface of the engine room 11 is covered with a radiator outer cover 14.

Next, the configuration of the dust removing device 25 provided on the side surface of the radiator 13 will be described.
As shown in FIG. 4, the cooling fan 12 is mounted on the right outer side in the traveling direction of the engine E, the radiator 13 is disposed on the right outer side of the cooling fan 12, and the radiator net 19 is provided on the outer side of the radiator 13. A cooler 17, a hydraulic oil cooler 18, and a mission oil cooler 16 are arranged.

  A radiator outer cover 14 is attached to the outer frame body of the engine room 11 with a hinge 20 so as to be opened and closed to the right side. A radiator inner cover 15 is attached to the inner bottom portion of the radiator cover 14 by a hinge 21 so as to be raised and lowered (see FIG. 5), the radiator outer cover 14 is opened to the side, and the radiator inner cover 15 is tilted inward. The space between the radiator inner covers 15 is opened.

A gap between the radiator outer cover 14 and the radiator inner cover 15 becomes a brush moving gap 26 in which a brush 24a described later moves back and forth.
The radiator outer cover 14 is formed with a wide outer first opening 14a in the upper and lower intermediate portions and a narrow outer second opening 14b in the lower outer inclined portion, and an outer net 32 having a coarse mesh is stretched on each.

  The radiator inner cover 15 has left and right inner first openings 15a and 15a against the outer first opening 14a, and left and right inner second openings 15b and 15b against the outer second opening 14b. Each is formed with an inner net 31 that is finer than the outer net 32 of the radiator outer cover 14.

  The mesh of the radiator net 19 provided in the immediate vicinity of the radiator 13 is finer than the inner net 31 of the radiator inner cover 15, but the inner mesh is coarser than the outer net 32 of the radiator outer cover 14. It is also possible to filter large dust that has solidified through the net 31.

  As shown in FIGS. 5 and 6, a lead cam shaft 23 driven by gears 28a and 28b from an electric motor 27 provided on the outer first opening 14a on the inner side of the radiator outer cover 14 is horizontally supported, and this lead cam The brush arm 24 attached to the brush bracket 28 screwed to the shaft 23 is engaged with the rail 22 provided at the lower portion of the outer first opening 14a, and the brush arm 24 is rotated by the lead cam shaft 23 so that the brush arm 24 is attached to the radiator outer cover 14 and the radiator inner cover. 15 is moved back and forth between 15 times.

  The brush 24b is attached to the brush arm 24 while being inclined with respect to the inner net 31, and the brush 24b is rubbed against the inner net 31 of the radiator inner cover 15 during the forward movement toward the dust exhaust passage 45 on the rear side. The dust entangled with the inner net 31 is scraped to the dust exhaust passage 45 so as to keep away from the surface of the inner net 31 when moving back to the original position.

Next, the front-rear reciprocating drive configuration of the brush arm 24 will be described with reference to FIGS.
In the brush bracket 28, a lower mounting plate 39 and front and rear bosses 37a and 37b fitted to the lead cam shaft 23 are integrally formed by an upper connecting plate 36 and front and rear plates 38a and 38b. It is attached to. The mounting plate 39 rotatably supports the arm pin 41 of the brush arm 24 and pivotally supports an anti-rotation roller 33 that contacts the rotation restricting plate 34 of the lead cam metal 40. The guide plate 42 provided integrally with the arm pin 41 is formed with a long hole through which the connecting pin 40b is passed.

  The lead cam metal 40 of the brush arm 24 includes a metal 40a that fits in the reciprocating spiral groove of the lead cam shaft 23, a connecting pin 40b attached to the metal, and a rotation restricting plate 34 attached to the connecting pin 40b. Further, the connecting pin 40 b is passed through a long hole 39 a formed in the mounting plate 39.

The guide plate 42 provided integrally with the arm pin 41 is formed with a long hole through which the connecting pin 40b is passed.
Therefore, when the metal 40a of the lead cam metal 40 moves while pushing one of the two bosses 37a and 37b, the brush bracket 28, the lead cam metal 40, and the brush arm 24 slide integrally. Then, when it comes to the folded portion, the lead cam metal 40 moves with respect to the brush bracket 28 and the brush arm 24 until the metal 40a hits the other bosses 37a and 37b and starts moving in the opposite direction. At this time, the connecting pin 40b moves in the axial direction of the lead cam shaft 23 together with the metal 40a, so that the connecting pin 40b moves in the longitudinal direction 39a of the brush bracket 28 in the longitudinal direction of the machine body, and the lower part of the connecting pin 40b is Since the guide plate 42 is in the hole of the guide plate 42, the guide plate 42 rotates around the arm pin 41, and the angle of the guide plate 42 changes, so that the brush 24a contacts or leaves the net. Become.

As for the movement of the brush 24a, the tip comes into contact with the inner net 31 at the time of forward movement moving from the front to the rear, and the tip is separated from the inner net 31 at the time of backward movement moving from the rear to the front.
A vertically long wind shield plate 35 is attached to the outside of the brush bracket 28 along the inside of the outer net 32 of the radiator outer cover 14 so as to reciprocate back and forth with the brush arm 24. Wind-shielding side plates 48a and 48b sandwiching the brush 24a are provided up and down inside the plate 35.

  The wind shield plate 35 and the wind shield side plates 48a and 48b block the suction cooling air from the cooling fan 12 from flowing into the brush 24a side. The dust on the inner net 31 scraped by the brush 24b is again removed from the inner net 31. Do not adsorb to the surface.

  Further, at the rear part of the radiator outer cover 14 and the radiator inner cover 15, dust is discharged to the cooling fan 12 side through the side of the radiator 13 by the first guide plate 43, the second guide plate 44 and the third guide plate 46. A passage 45 is formed, and the dust scraped by the forward movement in which the brush 24a moves to the rear side is sent out to the dust passage 45.

  Further, in the backward movement in which the brush 24a returns to the front side of the radiator outer cover 14, the brush 24a does not scrape the dust away from the inner net 31, so that the dust rises and is again sucked by the inner net 31 or the inner net 31. There is no passing through 31.

The dust removing device 25 configured as described above may be driven with the combine 1 stopped, but may be driven at a predetermined time interval or as necessary during the harvesting operation.
When the radiator outer cover 14 is pivoted rearward and opened to the side, and the radiator inner cover 15 is tilted downward, the brush arm 24 can be exchanged. good.

The inner net 31 stretched between the inner first opening 15a and the inner second opening 15b of the radiator inner cover 15 is detachable with bolts 29 and 30, and can be appropriately replaced.
Next, with reference to FIGS. 10 to 13, a discharge promoting device 50 provided at the bottom of the general-purpose combine grain tank 49 will be described. The grain tank 49 is provided with a feeder 53 that feeds grains at a predetermined amount at the bottom, and a grain at an appropriate position by a discharge tube that conveys the grains fed by the feeder 53 or the rotary valve with compressed air from a blower. Is discharged.

  Further, the inner side surface of the bottom part of the Glen tank 49 is supplied to the feeder 53 as a downward slope, but the slippage of the grain may be poor and the stagnation may occur. Necessary.

  In the embodiment shown in FIGS. 10 and 11, the discharge promoting device 50 is horizontally supported through the inclined side surfaces 49 a and 49 b of the bottom of the Glen tank, and a plurality of stirring rods 52 a are supported on the stirring shaft 51. , 52b is upright. The central stirring rod 52a is long so that the tip approaches the feeder 53, and the stirring rod 52b at both ends is shortened so that the tip approaches the inclined inner surface, but the inner side along the inclined inner surfaces of the inclined side surfaces 49a and 49b. It may be provided at an angle.

  The agitation shaft 51 has a sprocket 56 fixed to the shaft end connected to the shaft end of the rotation shaft 54 of the feeder 53 by a chain 55 and a sprocket 57, and rotates in synchronization with the rotation of the feeder 53. The agitation shaft 51 is inserted into the interior through an inspection window 58 that can be opened and closed on the right outer inclined side surface, and can be assembled.

  The discharge promoting device 50 shown in FIG. 12 rotates a stirring plate 60 having a stirring rod 61 projecting along the inner surface of an inclined side surface 49a from a rotating shaft 54 of a feeder 53 through sprockets 56 and 57, a chain 55 and a gear case 59. I try to drive it.

  Unlike the above, a drive motor that directly rotates the stirring shaft 51 may be provided, and when the grain sensor 61 provided below the stirring shaft 51 no longer senses the grain, the stirring shaft 51 may be rotated for a predetermined time. . With this configuration, the stirring shaft 51 rotates immediately before the grain is completely discharged from the Glen tank 49, so that the grain is not damaged.

DESCRIPTION OF SYMBOLS 11 Engine room 12 Cooling fan 13 Radiator 14 Radiator outer cover 15 Radiator inner cover 23 Lead cam shaft 24a Brush 26 Brush moving gap 31 Inner net 32 Outer net 35 Wind shield plate 45 Dust passage 48 Wind shield side plate

Claims (4)

  In the combined drive chamber cooling device for cooling the radiator (13) by sucking outside air with a cooling fan (12) provided in the engine room (11), an external net is provided outside the radiator (13) in the engine room (11). A brush moving gap (26) between the radiator outer cover (14) stretched with (32) and the radiator inner cover (15) disposed inside the radiator outer cover (14) with the inner net (31) stretched. ) And a dust discharge passage (45) extending from the outside of the radiator inner cover (15) through the side of the radiator (13) to the cooling fan (12) is provided, and discharged into the brush movement gap (26). A brush (24a) is provided that rubs against the inner net (31) of the radiator inner cover (15) during the forward movement toward the dust passage (45), and the brush (24a) is connected to the dust passage ( Driving chamber cooling system combine being characterized in that the away from the outer surface of the radiator in the cover at the time of backward movement to move away from the 5) (15).   2. The combined drive chamber cooling device according to claim 1, wherein a wind shielding plate (32) is provided on the radiator outer cover (14) side of the brush (24a).   The motive chamber cooling device for a combine according to claim 2, wherein wind shielding side plates (48, 48) are provided on both sides of the wind shielding plate (32) across the brush (24a).   4. The combined drive chamber cooling device according to claim 1, wherein the brush (24a) is reciprocated left and right by driving the lead cam shaft (23).

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