JP2009195211A5 - - Google Patents

Description

Combine

  The present invention relates to a combine.

Conventionally, a radiator is provided outside the engine, and a radiator cover having a frame body having a rectangular opening and a dustproof net provided at the opening is provided outside the radiator, and a predetermined width for rotational movement is provided inside the dustproof net. The wind shield plate is used for temporarily cooling the wind shield plate by using the wind shield plate during the rotational movement process, with some of the deposits adhering to the dust-proof net by the suction action of the cooling fan. A configuration in which the suction force of the fan is cut off so that the adhesive force is lost and dropped is known (Patent Document 1).
JP 2002-59748 A

In the known example, the windshield plate is rotated around the central portion of the rectangular dustproof net to temporarily block the suction air from the cooling fan and shut off the suction air from the cooling fan. Since the dust is removed by losing the adhesion force of the attached matter and dropping it, there is a problem that only a part of the dust-proof net of the radiator cover can remove the dust.
That is, in order to increase the cooling efficiency of the engine room, it is preferable to provide a plurality of openings in the radiator cover at the top and bottom. However, in the configuration of the known example, a wind shielding plate is provided in the dustproof net of each opening. Becomes complicated.
Further, since the wind shield plate is moved in a circular arc with respect to the dust-proof net having a rectangular opening, there is a problem in that deposits at the corners of the dust-proof net cannot be removed.
The present application devised the structure of the wind shield plate, and with one wind shield plate, it was possible to remove dust from the dust-proof nets in multiple openings of a wide range of radiator covers, and the wind path structure of the dust suction port was devised. Thus, the dust removal effect is improved while preventing the dust from adhering to the radiator or the like.

According to the first aspect of the present invention, a cutting unit 4 is provided in front of the traveling device 2, a threshing device 3 is provided above the traveling device 2, and an engine 12 that drives the traveling device 2, the cutting unit 4, and the threshing device is provided. The cooling fan 13 is provided outside the engine 12, the radiator 14 is provided outside the cooling fan 13, and the frame body 21 having a substantially rectangular opening 28 on the outside of the radiator 14 and the opening A radiator cover 20 having a dust-proof net 30 provided at 28 is provided, and a vertically long wind shielding plate 35 having a predetermined width is provided inside the dust-proof net 30 so as to be reciprocally movable in the width direction of the radiator cover 20. In the process of moving in the width direction of the radiator cover 20, the wind shielding plate 35 removes the deposits attached to the dust-proof net 30 by the suction action of the cooling fan 13. The suction force of the cooling fan 13 is temporarily blocked by the port 35 to reduce the adhesion force, and the suction air having a higher flow velocity than the suction air passing through the other part of the dust-proof net 30 passes through the attached matter. The structure is configured to move together with the wind shield plate 35 while being attached to the dust net 30 near the edge of the wind shield plate 35, and the frame body 21 at the end of the travel of the wind shield plate 35 has a structure. In addition, a dust suction port 55 is provided for sucking the adhering material that has moved along with the wind shielding plate 35, and the dust suction port 55 is provided in a suction air passage F that is separate from the cooling air passage 59 to the radiator 14. It is a combine characterized in that it is configured to be connected, and the wind shield plate 35 temporarily blocks the suction air of the cooling fan 13 and thereby adheres to the dust attached to the dust-proof net 30. Lower In the vicinity of the edge of the wind shielding plate 35, the suction air having a higher flow velocity and stronger suction force than the suction air passing through the other part of the dustproof net 30 passes, and the adhering matter in this part is adhered to the dustproof net 30. Move along with the wind shield plate 35.
Since the dust suction port 55 is provided at the end of the movement process of the wind shield plate 35, the adhering matter that has moved along with the wind shield plate 35 is sucked and removed from the dust suction port 55.
In this case, since the dust suction port 55 is configured to be connected to the cooling air passage 59 for the outside air to the radiator 14 and the suction air passage F which is a different route, the outside air that has passed through the dust-proof net 30 of the radiator cover 20. Cools the radiator 14 and the like through the cooling air passage 59, and the dust sucked by the dust suction port 55 is discharged through the suction air passage 58.
According to a second aspect of the present invention, in the first aspect, the radiator cover 20 is attached to a vertical frame 31 that supports the radiator 31 so as to be rotatable about an attachment shaft 32, and the suction air path F is Dust sucked by the dust suction port 55 is a combine characterized by being formed by the moving-side suction air passage 58 provided in the radiator cover 20 and the fixed-side suction air passage 61 provided in the vertical frame 31. Passes through the stationary suction air passage 61 provided on the vertical frame 31 that supports the radiator 14 through the moving suction air passage 58 separated from the cooling air passage 59.
According to a third aspect of the present invention, in the second aspect, the dust suction port 55 is formed between an end portion of a wind tunnel cover 56 provided outside the frame body 21 and the dust-proof net 30, and the wind tunnel cover 56 is a combine characterized in that a moving suction air passage 58 is formed inside 56, and when the wind shield plate 35 moves to the portion of the frame 21 where the wind tunnel cover 56 is provided, the wind shield plate 35 The adhering material whose edge has been moved is sucked from the dust suction port 55, passes through the moving suction air passage 58 between the frame body 21 and the wind tunnel cover 56, and the dust that has passed through the suction air passage 58 passes through the suction frame 58. Passes through the fixed suction air passage 61.
According to a fourth aspect of the present invention, in the second or third aspect, the fixed suction air passage 61 is formed in the vertical frame 31, and the outside air from the moving suction air passage 58 is fixed to the vertical frame 31. The combine is configured to flow from the suction air passage 61 into the cooling fan 13 provided inside the vertical frame 31 and into the shroud 64 surrounding the outer portion of the engine 12. Yes, when the wind shield plate 35 moves to the dust suction port 55, the adhering material moved by the edge of the wind shield plate 35 is sucked from the dust suction port 55 and moved between the frame body 21 and the wind tunnel cover 56. Dust passing through the suction air passage 58 and passing through the suction air passage 58 passes through the fixed side suction air passage 61 into the fixed side suction air passage 61 of the vertical frame 31, and is sucked through the fixed side suction air passage 61. Flows within the shroud 64 out of the fixed-side suction air passage 61, it merges with the cooling wind from the cooling air passage 59.
According to a fifth aspect of the present invention, in the second, third, or fourth aspect, when the frame body 21 of the radiator cover 20 is closed, the portion of the frame body 21 that comes into contact with the fixed portion on the vertical frame 31 side is not attached to the fixed portion. When the close seal member 65 is provided and the radiator cover 20 is closed, the moving-side suction air passage 58 and the fixed-side suction air passage 61 are in communication with each other. Is opened, the moving-side suction air passage 58 moves away from the airframe-side fixed suction air passage 61, and the moving-side suction air passage 58 moves integrally with the radiator cover 20, and when the radiator cover 20 is closed, the moving-side suction air passage 58 is closed. The air passage 58 and the fixed suction air passage 61 communicate with each other.
In this case, since the seal member 65 is provided in the portion that contacts the fixed portion when the frame body 21 of the radiator cover 20 is closed, the seal member 65 comes into close contact with the fixed portion when the radiator cover 20 is closed, and the suction on the moving side is performed. The air path 58 and the cooling air path 59 are reliably separated from each other, and wind is prevented from leaking from the moving side suction air path 58 and the cooling air path 59.

In the first aspect of the present invention, the wind shield plate 35 blocks the suction air from the cooling fan 13, so that the high-speed suction air near the edge of the wind shield plate 35 is attached together with the wind shield plate 35. In addition, the adhering material moved by the wind shield plate 35 to the dust suction port 55 at the end of the movement process of the wind shield plate 35 can be sucked and removed, improving the dust removal effect, and the suction air passage Since F is formed in the cooling air passage 59 for the outside air to the radiator 14 and the suction air passage 58 in a different path, the outside air for cooling the radiator 14 and the like is a cooling air path in a different path from the suction air passage 58. 59, the dust can be sucked and removed by the dust suction port 55 without attaching the dust to the radiator 14 and the like, and the overheating of the engine 12 can be reduced and the efficiency of the harvesting work can be increased.
In the second aspect of the invention, in addition to the effect of the first aspect of the invention, the radiator cover 20 is attached to the vertical frame 31 supporting the radiator 31 so as to be rotatable about the attachment shaft 32. The cooling air passage 59 and another suction air passage F are constituted by the moving side suction air passage 58 provided in the radiator cover 20 and the fixed side suction air passage 61 provided in the vertical frame 31. By opening the radiator, maintenance of the radiator 14 can be easily performed, and a configuration for separating the air path can be easily realized.
In the invention according to claim 3, in addition to the effect of the invention according to claim 2, the suction air passage 58 can be simply configured and easily realized.
In the fourth aspect of the invention, in addition to the effect of the second or third aspect of the invention, the suction air path F from the dust suction port 55 is moved to the moving side suction air path 58 and the fixed side suction air path 61 of the vertical frame 31. The suction air from the fixed suction air passage 61 is caused to flow into the shroud 64, so that the suction from the dust suction port 55 can be performed using the suction force of the cooling fan 13, and the dust suction port is specially provided. It is not necessary to provide a device for sucking outside air from 55, and the configuration can be simplified and provided at low cost.
In the invention according to claim 5, in addition to the effect of the invention according to claim 2, 3 or 4, the moving-side suction air passage 58 and the cooling air passage 59 are separated by the seal member 65, so that the dust is contained in the radiator 14 and the oil. The entry into the cooling air passage 59 with the cooler 15 can be suppressed, the outside air intake efficiency by the radiator cover 20 can be improved, the cooling effect can be improved, and the accumulation and retention of dust can be prevented.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine frame, 2 denotes a traveling device provided at a lower position of the machine frame 1, 3 denotes a threshing device provided at an upper position of the machine frame 1, and 4 denotes a threshing device 3. The cutting part provided in the front side of No. 5 is a Glen tank which primarily stores the grains threshed and selected by the threshing apparatus 3, 6 is a grain discharge auger, and 7 is a control part (FIG. 1).
Thus, an engine room 11 surrounded by the surroundings is formed near the lower part (rear side) of the driver's seat 10 of the control unit 7, and the engine 12 is provided in the engine room 11. An engine cooling fan 13 is provided on the outside (right side) of the engine 12 (FIG. 3). A radiator 14 is provided outside the cooling fan 13. Above the radiator 14, an oil cooler 15 and an intercooler 16 are arranged side by side (FIG. 8).
A radiator cover 20 is provided outside the radiator 14. The radiator cover 20 has a frame body 21. The shape of the frame 21 is arbitrary, but the front frame 22 and the rear frame 23, the upper horizontal frame 24 and the lower horizontal frame 25 that connect the front frame 22 and the rear frame 23, and the upper horizontal frame 24 and the lower horizontal frame 25. An intermediate upper horizontal frame 26 and an intermediate lower horizontal frame 27 are provided, and an opening 28 is formed in a space surrounded by the front frame 22 and the rear frame 23 and each of the horizontal upper frame 24 to the intermediate lower horizontal frame 27. A dustproof net 30 is provided in the opening 28 (FIG. 4).

The dust-proof net 30 passes the outside air sucked by the suction action of the cooling fan 13 while removing dust and supplies cool air into the engine room 11.
The frame body 21 is rotatably attached to an arbitrary fixing portion. Specifically, it is attached to a vertical frame 31 for supporting the radiator 14 so as to be rotatable about the attachment shaft 32 (FIG. 7). The vertical frame 31 is fixed to the body frame 1.
Reference numeral 33 denotes an oblique frame above the front frame 22 (FIG. 6).
Thus, a vertically long wind shield plate 35 having a predetermined width (front-rear width) is provided inside the dust-proof net 30 so as to be reciprocally movable in the width direction of the radiator cover 20 (machine body traveling direction / front-rear direction). In the process of moving the windshield plate 35 in the width direction of the radiator cover 20, some of the adhering matter adhering to the dustproof net 30 by the suction action of the cooling fan 13 is temporarily stored by the windshield plate 35. The suction force of the cooling fan 13 is blocked to cause the adhesion force to be lost (reduced) and dropped, and the remaining adhering matter has a higher flow velocity than the suction air that passes through the other dustproof net 30 portions. The eyes of the dustproof net 30 are moved (moved along) with the windshield plate 35 while being attached to the dustproof net 30 portion near the edge of the windshield plate 35 through which the suction air with a strong suction force passes (fast). Remove clogs.

Therefore, the wind shielding plate 35 is formed to have a width that can block the suction air of the cooling fan 13 so that a part of the adhered matter adhering to the dust-proof net 30 loses its adhesion and can be dropped. In the vicinity of the edge of the wind plate 35, the width is formed so that a suction air having a stronger suction force than the outside air passing through the other dustproof net 30 can pass.
In other words, the wind shield plate 35 temporarily blocks the suction air from the cooling fan 13 and drops a part of the adhered matter attached to the dust-proof net 30 with a reduced adhesion force. A suction air having a stronger suction force than the outside air passing through the other dustproof net 30 is actively passed near the edge on the upper side in the moving direction of 35, and the dustproof net 30 adhering together with the edge of the windshield plate 35. Is moved to remove the clogging of the dust-proof net 30.
Thus, the moving structure of the wind shield plate 35 is arbitrary, but a guide mechanism 36 that guides the movement of the wind shield plate 35 is provided between the wind shield plate 35 and the frame body 21 (FIG. 8). Specifically, guide rails 37 are provided on the upper horizontal frame 24 and the intermediate lower horizontal frame 27 of the frame body 21, and the guide body 38 is fitted (engaged) with the guide rail 37. The guide body 38 is rotatably attached to the frame body 21 by a shaft 39.

The wind shielding plate 35 is divided into an upper plate 40A and a lower plate 40B, and a long hole 41 is formed in the upper plate 40A. The lower plate 40B is provided with a pin 42 that moves in the long hole 41, and the wind shield plate 35 is stretchable at the portion of the long hole 41 and bends to connect the upper plate 40A and the lower plate 40B.
Therefore, when the upper plate 40 </ b> A reaches the end position of the short upper guide rail 37 in the end portion of the dust-proof net 30 that is inclined because the frame body 21 has the oblique frame 33, the upper plate 40 </ b> A is moved to the oblique frame 33. And the suction outside air is shut off by tilting along the line (FIG. 17).
Further, the wind shielding plate 35 is provided with a spring 44 between the upper plate 40A and the lower plate 40B, and is urged so as to be always shortened.
Therefore, in the movement process away from the diagonal frame 33, the wind shielding plate 35 moves in a straight line state.

In addition, a transmission shaft (lead cam shaft) 45 is rotatably mounted on the middle upper horizontal frame 26 of the frame body 21, and a moving member 46 that moves in the axial direction by the rotation of the transmission shaft 45 is attached to the transmission shaft 45. The moving member 46 is attached to the wind shield plate 35 (FIG. 8).
The transmission shaft 45 is provided in a portion of the frame body 21 where the dustproof net 30 does not exist. Specifically, the transmission shaft 45 is disposed inside the middle upper horizontal frame 26.
Therefore, the wind shielding plate 35 can be stably moved at a constant speed even if the transmission shaft 45 and the moving member 46 are long distances in the width direction of the frame body 21. In addition, since the dustproof net 30 does not exist inside the upper horizontal frame 26 in the middle of the frame body 21, the air intake resistance by the cooling fan 13 does not occur, and the cooling effect of the engine room 11 does not deteriorate.
A driven gear 48 is provided at the rear portion of the transmission shaft 45, and the drive gear 49 of the motor 49 is engaged with the driven gear 48.
That is, the transmission shaft 45 is not driven and rotated directly by the motor 49 but is rotated by the driven gear 48, so that sudden stress can be released at the driven gear 48 and the driving gear 49, and the load on the motor 49 is reduced. To improve durability.
The motor 49 is provided so as to overlap the rear frame 23 above the middle upper horizontal frame 26.

Therefore, the range in which the motor 49 closes the dust-proof net 30 is narrowed, the outside air introduction area by the dust-proof net 30 is widened, and the cooling effect by the radiator cover 20 is not lowered.
In this case, when the drive gear 49 of the motor 49 is arranged toward the outside (rear side) of the frame body 21, the drive gear 49 overlaps the rear frame 23, and the drive gear 49 prevents the dust-proof net 30 from being blocked, The outside air introduction area by the dust-proof net 30 is not narrowed, and the cooling effect by the radiator cover 20 is not reduced.
Further, the drive gear 49 and the driven gear 48 overlap with the rear frame 23, and the drive unit of the moving mechanism of the wind shielding plate 35 can be disposed within the reach of the hand.
In this case, the moving member 46 attached to the transmission shaft 45 is positioned below the attachment portion (pin 42) between the upper plate 40A and the lower plate 40B of the wind shielding plate 35.
Therefore, the movement drive mechanism of the wind shielding plate 35 can be configured simply.
That is, when the lower portion of the upper plate 40A moves to the front side, it moves along the oblique frame 33 of the frame body 21, but the lower plate 40B moves substantially horizontally, so the moving member 46 is attached to the lower plate 40B. The moving member 46 may be attached to the transmission shaft 45, and the moving drive mechanism of the wind shielding plate 35 can be simply configured and can be provided at low cost.

In addition, the moving member 46 is configured to be provided at an upper and lower middle (center) portion of the wind shielding plate 35 in a state of being vertically divided into the upper plate 40A and the lower plate 40B.
For this reason, problems due to errors in mounting and assembly of the wind shield plate 35 are eliminated, and the wind shield plate 35 can be moved smoothly.
The moving member 46 is attached to the back side of the wind shield plate 35.
Therefore, the moving member 46 does not obstruct the passage of the suction air passing near the edge of the wind shielding plate 35, and the suction effect is not lowered.
The lower end of the lower plate 40B of the wind shielding plate 35 is sandwiched by the guide body 51 to guide the movement.
Accordingly, a dust suction port 55 is provided on the frame body 21 on either one side or both sides of the end of the movement process of the wind shielding plate 35 for sucking the adhering material moved by the edge of the wind shielding plate 35.

Accordingly, the dust suction port 55 passes through the normal dustproof net 30 through the adhering matter attached to the dustproof net 30 near the edge on the upper side in the moving direction of the windshield plate 35 and moved by the windshield plate 35. Suction and removal are performed by a strong suction air passing through the dust suction port 55 having a higher flow velocity than the outside air.
The adhering matter on the dustproof net 30 is moved along with the wind shield plate 35 and forcibly removed by the dust suction port 55. Therefore, the dustproof net 30 of the radiator cover 20 is always cleaned and the inside of the engine room 11 is cooled. Keep the effect stable.
The structure of the dust suction port 55 is arbitrary, but specifically, a wind tunnel cover 56 is attached to either one side or both sides of the front frame 22 and the rear frame rear frame 23 of the frame body 21, and the wind tunnel cover 56 and the dustproof cover It is formed between the net 30 (FIGS. 5, 11, and 12).
That is, the dust suction port 55 is provided on either one or both sides of the wind shield plate 35 in the front-rear movement direction, and the adhering matter attached to the dust-proof net 30 by the edge on the upper side in the movement direction of the wind shield plate 35. (Dust etc.) is taken and the moved deposit is sucked and removed by the dust suction port 55.

In this case, the dust suction port 55 is configured to overlap the dustproof net 30 in plan view (FIGS. 11 and 12).
Therefore, the suction force of the dust suction port 55 becomes stronger, and the adhering matter that the edge on the upper side in the moving direction of the wind shielding plate 35 reaches the end of the dustproof net 30 is sucked and removed by the dust suction port 55. The
Further, the edge on the upper side in the moving direction of the wind shielding plate 35 is configured to be able to move to a position overlapping the front frame 22 or the rear frame 23 of the frame body 21 (for example, FIGS. 11 and 12).
Therefore, the wind-shielding plate 35 reliably blocks the outside air that passes through the dust-proof net 30 and improves the suction efficiency of the deposits by the dust suction port 55.
That is, if the edge on the upper side in the moving direction of the wind shield plate 35 does not move to the front frame 22 or the rear frame 23 of the frame body 21, Although the suction wind of the cooling fan 13 passes between the front frame 22 or the rear frame 23 and the suction of the adhering matter by the dust suction port 55 is prevented, the edge on the upper side in the moving direction of the wind shield plate 35 is Since it overlaps with the front frame 22 or the rear frame 23 of the frame body 21, the suction air of the cooling fan 13 near the dust suction port 55 is surely cut off, and the suction efficiency of the deposits by the dust suction port 55 is improved.

Therefore, the suction air passage F of the dust suction port 55 is provided in the frame body 21.
That is, the dust suction port 55 is formed at a predetermined position on the front side of the frame body 21, and the suction air passage F following the dust suction port 55 is configured to pass through the inside of the frame body 21.
In this case, the suction air passage 58 that passes through the inside of the frame 21 in the suction air passage F of the dust suction port 55 is separated from the cooling air passage 59 that cools the radiator 14, the oil cooler 15, the intercooler 16, and the like. Configure to form.
Therefore, since the suction air passage F following the dust suction port 55 and the cooling air passage 59 for cooling the radiator 14 and the like are separated, the dust sucked by the dust suction port 55 enters the cooling air passage 59. Is prevented from adhering to the radiator 14 and the like.
The separation structure of the suction air passage 58 and the cooling air passage 59 is arbitrary, but as an example, the suction air passage 58 is formed by the inner plate 60 of the front frame 22 of the planar frame body 21 and the wind tunnel cover 56. It is formed by an enclosed space, and the inner end side of the inner plate 60 is in close contact with the vertical frame 31, and the inner plate 60 serves as a partition to block the suction air passage 58 and the cooling air passage 59 from each other.

Therefore, the suction air passage 58 can be separated from the cooling air passage 59 by the inner plate 60. Therefore, dust is sucked by the suction air passage 58 without flowing through the cooling air passage 59 where the radiator 14 and the oil cooler 15 are provided. Therefore, the radiator cover 20 can improve the efficiency of taking in outside air and improve the cooling effect, and can prevent dust accumulation and retention (adhesion).
The wind tunnel cover 56 is formed integrally with or attached to the front frame 22.
Therefore, it is possible to reduce the number of parts, reduce the manufacturing cost, and reduce the cost.
Thus, the suction air path F of the dust suction port 55 is configured by providing the fixed side suction air path 61 in the vertical frame 31 on the back side of the moving side suction air path 58. 31A is an outer frame of the vertical frame 31, and 31B is an inner frame of the vertical frame 31 (FIGS. 11 and 12).
Reference numeral 62 denotes an outlet of the moving side suction air passage 58, and 63 denotes an entrance of the fixed side suction air passage 61.
The suction air passage F of the dust suction port 55 is divided into a fixed suction air passage 61 on the fixed side and a suction air passage 58 on the moving side, and the fixed suction air passage 61 is for cooling the inside of the vertical frame 31. It communicates with the engine room 11 in the shroud 64 that surrounds the periphery of the fan 13 and the outer portion of the engine 12 so that the outside air from the suction air passage 58 passes through the fixed-side suction air passage 61 and passes through the engine room 11. Configure.

Therefore, the suction air passage F is configured such that when the moving suction air passage 58 and the stationary suction air passage 61 are in communication with each other when the radiator cover 20 is closed, the suction air passes through the engine room 11 inside the shroud 64. .
Reference numeral 65 denotes a seal member provided on the frame body 21. The seal member 65 is brought into close contact with the vertical frame 31 when the radiator cover 20 is closed, and the fixed suction air passage 58 and the fixed suction air passage 61 are communicated with each other. A suction air passage F from 55 is formed.
Accordingly, the suction air passage 58 and the cooling air passage 59 can be reliably separated by the sealing member 65, and dust can be prevented from entering the cooling air passage 59 where the radiator 14 and the oil cooler 15 are provided. The efficiency of taking in outside air is improved to improve the cooling effect, and the accumulation and retention (attachment) of dust is prevented.
5, 11, and 12, the seal members 65 are provided at four locations. In the embodiment of FIG. 13, the dust suction port 55 is provided on the front side. There are three places, and the place of installation is arbitrary.

Accordingly, the upper part of the dust suction port 55 is positioned above the upper part of the fixed suction air passage 61 (vertical frame 31), and is configured to suck the deposits on the dustproof net 30 above the radiator 14.
The structure in which the deposits on the dustproof net 30 are sucked using the negative pressure generated in the shroud 64 by the rotation of the cooling fan 13, and the range in which the dust can be removed while simplifying the deposit removal configuration of the dustproof net 30. The cooling effect is improved by increasing the outside air intake efficiency by the radiator cover 20.
Accordingly, the moving speed of the wind shielding plate 35 is such that when the dust suction port 55 is provided on either one of the front and rear sides of the frame body 21, the moving speed in the direction away from the dust suction port 55 is faster than when moving toward the dust suction port 55. Constitute.
That is, when the dust suction port 55 is provided in the front frame 22 of the frame body 21, the rearward movement speed is faster than the forward movement speed.

Since the moving speed in the direction opposite to the dust suction port 55 is increased, the suction efficiency can be improved by efficiently sucking the dust from the dust suction port 55.
Although the structure which changes the moving speed of the wind-shielding plate 35 is arbitrary, it carries out by changing the rotation speed of the motor 49 as an example. A limit switch 70 senses the reverse movement of the wind shield plate 35 and changes the rotation speed of the motor 49.
In this case, the moving speed of the wind shielding plate 35 is configured to be changeable according to conditions such as the water temperature of the radiator 14.
For example, when the water temperature of the radiator 14 is low, the moving speed of the wind shielding plate 35 is set low, and the power consumption is reduced to perform the energy saving operation.
On the other hand, when the water temperature of the radiator 14 rises or the like, the moving speed of the wind shielding plate 35 is set fast, the dustproof effect is enhanced, and the cooling effect by the cooling fan 13 is enhanced.
71 is a water temperature sensor.

The movement of the wind shielding plate 35 is configured to start when the work clutch 72 that drives the threshing device 3 and the reaping unit 4 is turned on.
Further, when the engine rotation sensor 73 detects the rotation of the engine 12, the movement of the wind shielding plate 35 is started. Alternatively, the rotation of the engine 12 may be detected by the rotation sensor 73, and the movement of the wind shielding plate 35 may be started when the engagement of the work clutch 72 is detected.
Thus, when the water temperature of the radiator 14 is increased, the wind shield plate 35 is operated to reduce the power consumption and perform the energy saving operation.
Thus, when the dust suction port 55 is provided on either one of the front and rear sides of the frame body 21, when the wind shield plate 35 moves in a direction away from the dust suction port 55, the wind shield plate 35 is moved to the dustproof net. It is configured to move away from 30 in plan view.
That is, when the wind shield plate 35 advances toward the dust suction port 55, the suction wind of the cooling fan 13 is shut off close to the dust net 30, and the return path where the wind shield plate 35 is far from the dust suction port 55 is wind shield. The plate 35 is moved to the engine 12 side so as to be separated from the dust-proof net 30, interrupting the suction air of the cooling fan 13 is interrupted, so that the dust is not moved along the return path where the dust suction port 55 is not present. To prevent.

Thus, the front end of the upper guide rail 37A among the guide rails 37 that guide the movement of the wind shielding plate 35 is on an extension line L that extends the oblique portion of the dustproof net 30 of the oblique frame 33 of the frame body 21 upward. It arrange | positions ahead of the extension line L (FIG. 17).
As a result, when the upper part of the upper plate 40A of the wind shield plate 35 moves to the front end of the upper guide rail 37A and stops, it is bent at the pin 42 of the connecting portion between the upper plate 40A and the lower plate 40B. Since the lower portion of the upper plate 40A rotates on the extension line L of the dustproof net 30 or on the guide rail 37 on the front side of the extension line L, the intersection K between the upper plate 40A and the extension line L is from top to bottom. As a result, the upper plate 40A blocks the wind from the top to the bottom.
Therefore, the adhering matter on the dustproof net 30 is moved from the top to the bottom by the wind shielding plate 35, and the suction by the dust suction port 55 is improved.

(Operation of Example)
The engine 12 is started, the vehicle travels with the travel device 2, and the cereals harvested by the mowing unit 4 during travel are threshed with the threshing device 3.
When the engine 12 is started, the cooling fan 13 rotates and sucks outside air from the dust-proof net 30 of the radiator cover 20. The sucked outside air passes through the radiator 14 and cools cooling water for cooling the engine 12. It blows through while cooling the outer periphery of the engine 12.
A vertically long wind shield plate 35 having a predetermined width (front / rear width) is provided inside the dust-proof net 30 so as to be reciprocally movable in the width direction of the radiator cover 20 (machine direction / front / rear direction). The wind plate 35 temporarily blocks the suction air of the cooling fan 13 and reduces the adhesion force of some of the deposits attached to the dustproof net 30 by the suction action of the cooling fan 13. The extra adhering matter remains together with the wind shield plate 35 while being attached to the portion of the dust shield net 30 near the edge of the wind shield plate 35 through which the suction air having a stronger suction force than the outside air passing through the other dust shield net 30 passes. Thus, the deposit on the portion through which the wind shielding plate 35 has passed is removed, and clogging of the dustproof net 30 is suppressed.

In this case, since the wind shielding plate 35 moves back and forth with respect to the dustproof net 30 of the rectangular opening 28, dust is removed to every corner of the dustproof net 30.
In addition, the opening 28 of the radiator cover 20 is formed with an oblique frame 33 on a part of the frame body 21 according to the request for the design shape. Is divided into upper and lower parts, and the upper plate 40A rotates around the upper part, so that the upper plate 40A moves while being refracted with respect to the lower plate 40B. Therefore, the dustproof net 30 in the oblique portion can also be efficiently removed.
A guide rail guide rail 37 is provided on each of the upper horizontal frame 24 and the intermediate lower horizontal frame 27 of the frame body 21, and the guide body guide body 38 is fitted (engaged) with the guide rail 37, so A transmission shaft 45 is rotatably mounted on the frame 26, and a moving member 46 that reciprocates in the axial direction by the rotation of the transmission shaft 45 is attached to the transmission shaft 45. Therefore, when the transmission shaft 45 is driven, The wind plate 35 moves substantially reciprocally linearly with respect to the radiator cover 20.

Therefore, the wind shielding plate 35 can be stably moved at a constant speed even if the transmission shaft 45 and the moving member 46 are long distances in the width direction of the frame body 21. In addition, since the dustproof net 30 does not exist inside the upper horizontal frame 26 in the middle of the frame body 21, the air intake resistance by the cooling fan 13 does not occur, and the cooling effect of the engine room 11 does not deteriorate.
A driven gear 48 is provided at the rear portion of the transmission shaft 45, and the drive gear 49 of the motor 49 is meshed with the driven gear 48. Therefore, the motor 49 does not directly drive and rotate the transmission shaft 45, but the driven gear 48 is interposed. Therefore, sudden stress can be released at the driven gear 48 and the drive gear 49, reducing the load on the motor 49 and improving the durability.
Since the motor 49 is provided so as to overlap the rear frame 23 above the horizontal frame 26 in the middle in a side view, the range in which the motor 49 closes the dust-proof net 30 is narrowed, and the outside air introduction area by the dust-proof net 30 is widened. The cooling effect by the radiator cover 20 is not lowered.

In this case, when the drive gear 49 of the motor 49 is arranged toward the outside (rear side) of the frame body 21, the drive gear 49 overlaps the rear frame 23, so that the rotation transmission mechanism from the motor 49 to the transmission shaft 45 is a dust-proof net. The range which closes 30 is narrowed, the outside air introduction area by the dustproof net 30 is not narrowed, and the cooling effect by the radiator cover 20 is not lowered.
In addition, by overlapping the drive gear 49 and the driven gear 48 with the rear frame 23, the drive unit of the moving mechanism of the wind shielding plate 35 can be disposed in a range where the hand is not touched.
Therefore, the wind shielding plate 35 is divided into an upper plate 40A and a lower plate 40B, and a long hole 41 is formed in the upper plate 40A. The lower plate 40B is provided with a pin 42 that moves in the long hole 41, and the wind shield plate 35 is extendable and contractable at the portion of the long hole 41, and flexibly connects the upper plate 40A and the lower plate 40B. When the upper plate 40A reaches the end point position of the short upper guide rail 37, the upper plate 40A is inclined so as to follow the oblique frame 33 to block the suction outside air, and in the travel of the upper plate 40A away from the oblique frame 33 The wind shield plate 35 moves in a linear state.

In this case, since the moving member 46 attached to the transmission shaft 45 is positioned below the attachment portion (pin 42) between the upper plate 40A and the lower plate 40B of the wind shielding plate 35, the movement of the wind shielding plate 35 is performed. The drive mechanism can be configured simply.
Further, since the moving member 46 is provided in the upper and lower middle (center) portion of the wind shield plate 35 in the state of being divided into the upper plate 40A and the lower plate 40B, errors in mounting and assembly of the wind shield plate 35 are provided. This eliminates the trouble caused by the windshield plate 35 and makes the windshield plate 35 move smoothly.
Further, since the moving member 46 is attached to the back side of the wind shielding plate 35, the moving member 46 does not obstruct the passage of the suction air passing near the edge of the wind shielding plate 35, and the suction effect is not lowered.

Accordingly, a dust suction port 55 is provided on the frame body 21 on either one side or both sides before and after the end of the movement process of the wind shielding plate 35 to suck the adhered matter moved by the edge of the wind shielding plate 35. Therefore, the dust suction port 55 passes through the normal dustproof net 30 through the adhering matter attached to the dustproof net 30 near the edge on the upper side in the moving direction of the windshield plate 35 and moved by the windshield plate 35. The air is sucked and removed by the suction air passing through the dust suction port 55 stronger than the outside air.
Therefore, the adhering matter on the dustproof net 30 is moved along with the wind shielding plate 35 and is forcibly removed by the dust suction port 55. Therefore, the dustproof net 30 of the radiator cover 20 is always cleaned, and the inside of the engine room 11 is kept clean. Maintains the cooling effect stably.
Since the dust suction port 55 is formed between the wind tunnel cover 56 and the dust-proof net 30 by attaching the wind tunnel cover 56 to either one or both sides of the front frame 22 and the rear frame 23 of the frame body 21, the dust suction port 55 is simply configured. it can.
In this case, since the dust suction port 55 is configured to overlap with the dust-proof net 30 in plan view, the suction force of the dust suction port 55 is increased, and the edge on the upper side in the moving direction of the wind shielding plate 35 is the dust-proof net. The adhering matter taken to the end of 30 is sucked and removed by the dust suction port 55.

Further, since the edge on the upper side in the moving direction of the wind shield plate 35 is configured to move to a position where it overlaps with the front frame 22 or the rear frame 23 of the frame body 21, the wind shield plate 35 passes through the dust net 30. Thus, the outside air flow is surely blocked, and the suction efficiency of the deposits by the dust suction port 55 is improved.
That is, if the edge on the upper side in the moving direction of the wind shield plate 35 does not move to the front frame 22 or the rear frame 23 of the frame body 21, Although the suction wind of the cooling fan 13 passes between the front frame 22 or the rear frame 23 and the suction of the adhering matter by the dust suction port 55 is prevented, the edge on the upper side in the moving direction of the wind shield plate 35 is Since it overlaps with the front frame 22 or the rear frame 23 of the frame body 21, the suction air of the cooling fan 13 near the dust suction port 55 is surely cut off, and the suction efficiency of the deposits by the dust suction port 55 is improved.

Thus, the suction air suction path F passing through the dust suction port 55 is formed separately from the outside air cooling air path 59 for cooling the radiator 14, the oil cooler 15, the intercooler 16, and the like. Therefore, the dust sucked by the dust suction port 55 can be prevented from adhering to the radiator 14 and the like.
The suction air path 58 of the suction air path F of the dust suction port 55 and the other cooling air path 59 are divided into the suction air path 58, the inner plate 60 of the front frame 22 of the planar frame body 21, and the wind tunnel cover 56. Since the suction air passage 58 is separated from the cooling air passage 59 inside the inner plate 60 by the inner plate 60, the dust sucked by the dust suction port 55 is used for cooling. It does not enter the air path 59.
Therefore, the suction air passage 58 can be separated from the cooling air passage 59 by the inner plate 60, so that the dust is sucked and discharged without entering the cooling air passage 59 where the radiator 14 and the oil cooler 15 are provided. It is possible to improve the cooling effect by improving the efficiency of taking in outside air by the radiator cover 20, and to prevent dust accumulation and retention (adhesion).

The configuration of the inner plate 60 of the front frame 22 of the frame body 21 and the wind tunnel cover 56 is not limited by these names, and the suction air path 58 may be formed in the frame body 21.
Accordingly, the suction air passage F of the dust suction port 55 is constituted by a moving-side suction air passage 58 of the radiator cover 20 and a fixed-side suction air passage 61 in the vertical frame 31 on the back side of the suction air passage 58. Accordingly, when the moving-side suction air passage 58 and the fixed-side suction air passage 61 close the radiator cover 20, the suction air passage F communicates with the engine room 11 inside the shroud 64.
That is, the suction air passage F of the dust suction port 55 is divided into a fixed suction air passage 61 on the fixed side and a suction air passage 58 on the moving side, and the fixed suction air passage 61 is provided inside the vertical frame 31. The cooling fan 13 and the engine room 11 in the shroud 64 that surrounds the periphery of the cooling fan 13 and the outer portion of the engine 12 communicate with the outside air from the suction air passage 58 through the fixed suction air passage 61 on the back side, and Since it is configured to pass through the room 11, the dust suction port 55 can be sucked by the suction air (force) of the cooling fan 13, and there is no need to provide a special suction configuration dedicated to the dust suction port 55. Moreover, the radiator 14 is not clogged with dust sucked by the dust suction port 55 while using the suction air of the cooling fan 13, so that the rational configuration is obtained.

In this case, a seal member 65 is provided at a predetermined portion of the frame body 21. The seal member 65 is in close contact with the vertical frame 31 when the radiator cover 20 is closed, and the fixed-side suction air passage 58 and the fixed-side suction air passage 61 are communicated. Thus, a suction air path F from the dust suction port 55 is formed.
Accordingly, the suction air passage 58 and the cooling air passage 59 can be reliably separated by the sealing member 65, and dust can be prevented from entering the cooling air passage 59 where the radiator 14 and the oil cooler 15 are provided. The efficiency of taking in outside air is improved to improve the cooling effect, and the accumulation and retention (attachment) of dust is prevented.
Specifically, the seal member 65 is provided in the front and rear wind tunnel covers 56, the front frame 22, and the rear frame 23, and comes into close contact with the front and rear vertical frames 31 when the radiator cover 20 is closed.
When the radiator cover 20 is opened, maintenance of the radiator 14, the oil cooler 15, the intercooler 16, and the like can be easily performed.

Therefore, the dust suction port 55 is provided on either the front or back of the frame body 21 so that the moving speed of the wind shield plate 35 is faster in the direction away from the dust suction port 55 than when moving toward the dust suction port 55. Therefore, since the moving speed in the direction away from the dust suction port 55 is increased, the dust can be efficiently sucked from the dust suction port 55 and the suction efficiency can be improved.
In this case, the set moving speed serving as a reference for the wind shield plate 35 is configured to be changeable according to conditions such as the water temperature of the radiator 14. For example, when the water temperature of the radiator 14 is low, the wind shield plate 35 is used. The energy saving operation is performed by setting the movement speed of the vehicle to low and reducing the power consumption.
On the other hand, when the water temperature of the radiator 14 rises or the like, the moving speed of the wind shielding plate 35 is set fast to enhance the dustproof effect and enhance the cooling effect by the cooling fan 13.
Thus, the movement of the wind shield plate 35 is configured to start when the work clutch 72 that drives the threshing device 3 and the mowing unit 4 is turned on. When there is little dust generation, the movement of the wind shielding plate 35 is stopped to reduce the power consumption and perform the energy saving operation.
In addition, each of the above-described embodiments is illustrated or described individually or mixedly for easy understanding, but these can be combined in various ways, and the expression, configuration, action, etc. It is not limited, and there are of course cases where a synergistic effect is obtained.

The left view of a combine. The right view of a combine. The schematic plan view of the engine vicinity. The right view of a radiator cover. The cross-sectional plan view. The right view of the frame of a radiator cover. FIG. The side view which displayed the movement mechanism and drive mechanism of a radiator cover. The rear view. The rear view of a windshield plate. Sectional drawing of the dust suction opening part of the front side of a radiator cover. Sectional drawing of the dust suction opening part of the rear side of a radiator cover. Sectional drawing of the Example which provided the dust suction opening in the front side of the radiator cover. The right view of the frame of a radiator cover. The front view. The right view of a radiator cover. The side view which shows the movement state of a windshield plate. Block Diagram.

DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling apparatus, 3 ... Threshing device, 4 ... Cutting part 4, 5 ... Grain bag packing hopper, 7 ... Steering part, 10 ... Seat, 11 ... Engine room, 12 ... Engine, 13 ... Cooling fan, 14 ... radiator, 15 ... oil cooler, 16 ... intercooler, 20 ... radiator cover, 21 ... frame, 22 ... front frame, 23 ... rear frame, 24 ... upper horizontal frame, 25 ... lower horizontal frame, 26 ... middle upper horizontal frame, 27 ... middle lower horizontal frame, 28 ... opening, 30 ... dustproof net, 31 ... vertical frame, 32 ... mounting shaft, 33 ... diagonal frame, 35 ... wind shield plate, 36 ... guide mechanism, 37 ... guide rail, 38 ... guide body, 40A ... upper plate, 40B ... lower plate, 41 ... long hole, 42 ... pin, 44 ... spring, 45 ... transmission shaft, 46 ... moving member, 48 ... driven gear, 49 ... Motor, 50 ... drive gear, 5 ... dust suction port, 56 ... wind tunnel cover, 58 ... suction air passage, 59 ... cooling air passage, 60 ... inner plate, 61 ... fixed suction air passage, 64 ... shroud, 70 ... limit switch, 71 ... water temperature sensor 72 ... Work clutch, 73 ... Rotation sensor.

Claims (5)

  A cutting unit (4) is provided in front of the traveling device (2), a threshing device (3) is provided above the traveling device (2), and the traveling device (2), the cutting unit (4), and the threshing device are driven. An engine (12) is provided, a cooling fan (13) is provided outside the engine (12), a radiator (14) is provided outside the cooling fan (13), and an outside of the radiator (14) is provided. Is provided with a frame cover (21) having a substantially rectangular opening (28) and a radiator cover (20) having a dustproof net (30) provided in the opening (28), inside the dustproof net (30). Is provided with a vertically long wind shield plate (35) having a predetermined width so as to reciprocate in the width direction of the radiator cover (20), and the wind shield plate (35) moves in the width direction of the radiator cover (20). For the cooling process The adhering matter adhering to the dust-proof net (30) by the suction action of the fan (13) is temporarily blocked by the cooling air fan (13) by the wind shielding plate (35). This deposit is attached to the dust-proof net (30) in the vicinity of the edge of the wind-shielding plate (35) through which the suction air having a higher flow velocity than the suction air passing through other parts of the dust-proof net (30) passes. The wind shield plate (35) is moved together with the wind shield plate (35), and the wind shield plate (35) is moved to the end of the frame (21) at the end of the travel of the wind shield plate (35). A dust suction port (55) is provided for sucking the adhering substances that have moved in this manner, and the dust suction port (55) is a suction air passage (F) that is separate from the cooling air passage (59) to the radiator (14). ) That is configured to be connected to a). The suction air passage (F) according to claim 1, wherein the radiator cover (20) is attached to a vertical frame (31) supporting the radiator (31) so as to be rotatable about an attachment shaft (32 ). combine to the movable suction air passage provided La di eta coverings (20) and (58), fixed-side suction air passage provided in the vertical frame (31) and (61), characterized in that formed by.   In Claim 2, the said dust suction opening (55) is formed between the edge part of the wind tunnel cover (56) provided in the outer side of the said frame (21), and the said dust-proof net (30), The said wind tunnel cover The combine is characterized in that a moving suction air passage (58) is formed inside (56). 4. The fixed suction air passage (61) according to claim 2 or 3, wherein the fixed suction air passage (61) is formed in the vertical frame (31), and outside air from the moving suction air passage (58) is fixed to the vertical frame (31). The cooling fan (13) provided inside the vertical frame (31) and the shroud (64) surrounding the outer part of the engine (12) are configured to flow from the suction air passage (61). Combine that is characterized by that. 5. The frame according to claim 2, 3, or 4, wherein the portion of the frame (21) that contacts the fixing portion on the vertical frame (31) side when the frame (21) of the radiator cover (20) is closed is not attached to the fixing portion. A combine characterized in that a close seal member (65) is provided and the moving side suction air passage (58) and the stationary side suction air passage (61) communicate with each other when the radiator cover (20) is closed.