JP2007174927A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester in which separating air is warmed to accelerate the dryness of threshed and separated materials. <P>SOLUTION: In this combine harvester equipped with an engine E and an air-separating portion for separating threshed materials with air, the separating air is sucked from the right and left suction ports 22a, 22b of a winnower 22 and discharged from the front side portion of the winnower 22. Circulated cooling water pipes 32, 32 for circulating the cooling water between the engine E and a radiator 31 are disposed, and a winnower circulating cooling water pipe 33 into the engine E through the winnower 22 of an air separating portion 21 is branched from a site of the circulated cooling water pipes 32 between the engine E and the radiator 31. The flat spread heat exchange portions 33a of the winnower circulating cooling water pipe 33 are disposed, while facing the right and left suction ports 22a, 22b of a winnower 22. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a combine for predrying threshing with warm air.

In the combine, the engine part with the operating part at the top is arranged on the side of the front side of the threshing device, the sorting fan is arranged over the entire width of the front side of the threshing device, and sorting is performed on both the left and right sides of the sorting fan. It is well known that an intake port for wind suction is provided, an auxiliary intake port is provided in the left and right center of the sorting fan, and cooling exhaust air from the engine is forcibly introduced into the auxiliary intake port by the fan (patent Reference 1).
Japanese Utility Model Publication No. 63-148144

  In the conventional apparatus, an auxiliary intake port is provided in the left and right central portion of the sorting fan, and cooling exhaust air that has passed through the radiator and the engine is forcibly introduced into the auxiliary intake port by the fan. Therefore, hot air is exposed to the surrounding air and the temperature drops, and the hot air introduced into the sorting fan by the fan is a part of it, and the heating efficiency of the sorting air is poor and the drying effect of the sorted product does not increase. was there. Therefore, the present invention is intended to solve such a problem.

  The invention according to claim 1 is a combined circulating cooling water pipe that circulates between the engine (E) and the radiator (31) in a combine that includes the engine (E) and a wind sorting section (21) that winds the cereal. (32, 32) is provided, and the Karatsu circulating cooling water pipe (33) is branched from the portion of the circulating cooling water pipe (32) flowing from the engine (E) to the radiator (31), so that the Karatsu (22 ) A combine that is configured to recirculate to the engine (E) through the peripheral portion, and a portion of the Kara circulation cooling water pipe (33) is disposed opposite to the portion of the Kara (22) through which the wind flows; To do.

  According to the above configuration, the cooling water heated by the engine (E) flows through the circulating cooling water pipe (32) and the red pepper circulating cooling water pipe (33) and returns to the engine (E) through the peripheral portion of the hot water (22). And, when the cooling water of the red pepper circulation cooling water pipe (33) passes through the part where the wind of the red pepper (22) flows, heat exchange is performed to make the selective wind of the red pepper (22) warm and the threshing sort is dried. Can be sorted.

  The invention of claim 2 is constructed so as to be sucked in from the left and right air inlets (22a, 22b) of the tang (22) and sent out from the front side of the tang (22), and the tang circulation cooling water pipe (33) The combine according to claim 1, wherein the heat exchanging portion (33a) spreading in a plane is arranged opposite to the left and right air inlets (22a, 22b) of the tang (22).

  According to the said structure, in addition to the said effect | action of the invention of Claim 1, when a cooling water passes the heat exchange part (33a) extended in the planar shape of a Kara circulation cooling water pipe (33), a Kara (22) Heat is exchanged by the suction air sucked into the left and right air inlets (22a, 22b).

  According to the first aspect of the present invention, the cooling water heated by the engine (E) can be entirely introduced to the red pepper (22) while reducing the temperature drop by the circulating cooling water pipe (32) and the red pepper circulating cooling water pipe (33). Can improve the heat exchange efficiency while warming the selection air of Karatsu (22), enhance the drying effect of wet threshing selection, shorten the grain drying time and reduce the fuel used Can do.

  In addition to the effect of the invention of claim 1, the invention of claim 2 is characterized in that when the cooling water passes through the heat exchanging portion (33a) spreading in a plane shape of the Kara circulation cooling water pipe (33), Since the suction air sucked into the left and right air inlets (22a, 22b) of 22) is applied, heat can be efficiently exchanged and the temperature of the sorting air can be raised.

Hereinafter, embodiments of the present invention shown in the drawings will be described.
First, the overall configuration of the combine 1 will be described. 1 is an overall side view of the combine 1, FIG. 2 is an overall plan view, FIG. 3 is a cut rear view, and FIG. 4 is a cut side view.

  A pair of left and right traveling crawlers 3 and 3 are disposed below the traveling vehicle body 2 of the combine 1. On the traveling vehicle body 2, a cockpit 4 is disposed at the front right side and a Glen tank 6 is disposed behind the pilot seat 4. The threshing unit 5 is disposed at the rear left side, and the slaughtering device 7 is disposed behind the threshing unit 5 and the glen tank 6. In front of the threshing unit 5, a cutting and conveying unit 8 that conveys the planted cereal while moving the weeds toward the threshing unit 5 at the rear is provided so as to be movable up and down.

Next, the configuration of the threshing unit 5 will be described.
In the treatment chamber 11, a treatment barrel 12 with teeth is pivoted so as to rotate around a treatment barrel axis in the front-rear direction, and a lower outer periphery of the treatment barrel 12 is covered with a receiving net 14. A second processing chamber 16 is provided on the upper right side of the handling chamber 11, and a second processing cylinder 17 with processing teeth is pivoted around the second processing chamber 16 so as to rotate around the second processing cylinder axis in the front-rear direction. ing.

  In addition, a dust removal processing chamber 18 is provided below the right side of the handling chamber 11, and the dust collection processing cylinder 18 with helical processing teeth is provided in the dust processing chamber 18 so as to rotate around the dust collection processing cylinder axis in the front-rear direction. 19, the rear end of the handling chamber 11 and the front end of the dust treatment chamber 18 are communicated with each other through a communication port, and the wastes sent from the handling chamber 11 to the dust treatment chamber 18 are discharged. The threshing process is performed while being sent to the rear side by the helical treatment teeth of the dust treatment cylinder 19.

  Further, a feed chain 9 for transferring the threshing culm is provided on the left side of the handling chamber 11, and a waste transporting device 10 is provided on the lower transport side of the feed chain 9, so that the threshed waste is discharged to the rear. It is configured to transport toward the scissor processing device 7.

  Further, a wind sorting unit 21 is provided from the lower side to the rear side of the handling chamber 11. The sorting air is sent backward from the tang 22 to the sorting air passage 23 in the front-rear direction, and the sorting air passage 23 is provided with a swing sorting shelf 24 that reciprocally swings in the front-rear direction. On the upper side of the oscillating sorting shelf 24, a coarse sorting unit comprising a grain pan 24a, a grain sheave 24b, a chaff sheave 24c, and a Strollac 24d is formed from the front side to the rear side, and on the lower side of the oscillating sorting shelf 24. Constitutes a fine sorting portion by a net sieve 24e made of a mesh body, and receives a threshing processed product from the handling chamber 11, the second processing chamber 16 and the dusting processing chamber 18 and performs a specific gravity sorting while swinging and transferring to the rear side. It is configured.

  At the front side of the bottom of the sorting air passage 23, a first receiving bowl 25 with the first spiral 25a for receiving the first selected grain is provided, and the first grain selected by the first receiving bowl 25 is the first. A second receiving rod 27 with a second spiral 27a for receiving a second picked item is provided on the rear side of the grain tank 6 by the grain raising machine 26, and the second receiving rod 27 is selected. It is configured so that the watch is whipped into the second processing chamber 16 by the second masher 28.

Next, the warming-up configuration of the selected wind in the wind sorting unit 21 will be described based on FIGS. 4 and 5.
The engine E and the radiator 31 are connected by circulating cooling water pipes 32, 32 so that the cooling water circulates between the engine E and the radiator 31. In addition, a control valve 34 is provided at a portion of the circulating cooling water pipe 32 that flows from the engine E to the radiator 31 to branch the hot water circulating cooling water pipe 33, and the hot water circulating cooling water pipe 33 is circulated to the radiator 31 through the hot water 22. It is configured. And the part which opposes the left-right wind inlets 22a and 22b of the Kara circulation cooling water pipe 33 is comprised in the planar heat exchange part 33a which flows to a lower side through a some water pipe from an upper side.

  Further, the control valve 34 allows (1) the cooling water from the engine e to flow to the radiator 31, (2) the cooling water from the engine E to the tangential circulation cooling water pipe 33, or (3) the radiator from the engine E to the radiator 31 and the Karatsu circulating cooling water pipe 33 are configured to be switchable. Thus, by switching in various ways in this way, the temperature of the cooling water can be kept constant even in a wide range of temperature changes due to load fluctuations of the engine E.

  In addition, a relief valve 35 is provided at a portion of the circulating cooling water pipe 32 that flows from the radiator 31 to the engine E, and the cooling water from the red pepper circulating cooling water 33 fills the radiator 31 with a predetermined pressure and then returns to the engine E from the relief valve 35. It is configured to do.

  According to the above-described configuration, the cooling water of the engine E is sent from the circulating cooling water 32 and the control valve 34 to the hot water circulating cooling water pipe 33, and passes through the heat exchange portions 33a and 33a of the left and right air inlets 22a and 22b of the hot water 22 and the engine E. By circulating it in the air, it is possible to warm the sorting wind of the tang 22 while increasing the heat exchange efficiency, to enhance the drying effect of the wet threshing sort, and to shorten the grain drying time in the subsequent process.

Further, another embodiment will be described based on FIGS. 6 and 7.
Even if the heat exchanging portion 33a of the red pepper circulation cooling water pipe 33 is disposed in the air blowing port 22c to the sorting air passage 23 in the red pepper 22, the same effect as in the above embodiment can be expected. Moreover, the heat exchange part 33a arrange | positioned in the part which opposes the ventilation port 22c of the Chinese cypress 22 can also serve as the air splitting function of a selection wind.

Next, an embodiment of the circulation control will be described based on FIGS. 4, 5, 8 and 9.
As shown in FIG. 8, the rotational power of the engine E is transmitted to the rotating parts of the threshing unit 5 via the threshing belt transmission device 38, and the threshing clutch 41 is moved by the threshing clutch lever 39 via the threshing clutch wire 40. It is configured so that it can be turned on / off.

  Further, as shown in FIG. 9, a threshing clutch detection sensor SE <b> 1 that detects on / off of the threshing clutch 41 is connected to the input side of the control unit 42 via the input interface, and is connected to the output side of the control unit 42. Is connected to the control valve drive means SO1 via the output interface.

  According to the above configuration, when the threshing clutch detection sensor SE1 detects the entry of the threshing clutch 41, the control valve 34 is switched by a command from the control unit 42, and the cooling water heated by the engine E is supplied to the circulating cooling water pipe 32 and the red pepper circulating cooling. Via the water pipe 33, it is sent to the heat exchanging part 33 a disposed opposite to the left and right air inlets 22 a, 22 b of the tang 22 and is returned to the engine E.

  Therefore, while increasing the heat exchange efficiency of the cooling water, it is possible to warm the sorting wind of the tang 22 and enhance the drying effect of the wet threshing sort. When the threshing clutch detection sensor SE1 detects the disengagement of the threshing clutch 41, the control valve 34 is switched to circulation to the radiator 31 side.

  Further, when the threshing clutch detection sensor SE1 detects the entry of the threshing clutch 41, the control valve 34 may be switched to circulation to both the Karatsu 22 side and the radiator 31 side. With this configuration, the heating / cooling water can be sufficiently cooled even when the engine E is overloaded.

Next, another embodiment will be described based on FIGS.
The Glen tank 6 is divided into an iron plate lower flange 6a and a synthetic resin upper tank 6b, which are detachably connected to form the Glen tank 6. 12, the Glen tank circulation cooling water pipe 33b is branched from the part of the circulation cooling water pipe 32 flowing from the engine E to the radiator 31 via the control valve 34, and the lower flange 6a of the Glen tank 6 is inclined. A heat exchange section 33a having a large area of the Glen tank ring cooling water pipe 33b is arranged opposite to the outer peripheral part of the plate, and the terminal side of the Glen tank circulation cooling water pipe 33b is circulated to the radiator 31. Further, the heat exchange part 33 a of the Glen tank circulation cooling water pipe 33 b is covered with a cover 43.

  According to the above configuration, when the heated cooling water from the engine E is sent to the Glen tank circulation cooling water pipe 33b via the control valve 34, the heat facing the inclined plate portion of the lower flange portion 6a of the Glen tank 6 is obtained. The grain in the Glen tank 6 is heated and dried by the exchange unit 33a, and the cooled cooling water is circulated to the engine E.

  Therefore, the drying time in the grain dryer in the subsequent process can be shortened. Moreover, since the grain in the Glen tank 6 is heat-dried by the heat exchange part 33a of the inclined plate outer peripheral part of the lower collar part 6a of the Glen tank 6, the flow of a high moisture grain is promoted and the discharge time of the grain Can be shortened. Further, since the lower flange portion 6a of the Glen tank 6 is made of sheet metal, it is strong against heat and can retain durability. Moreover, if the lower collar part 6a of the Glen tank 6 is removed from the traveling vehicle body 2, the Glen tank circulation cooling water pipe 33b and the heat exchange part 33a can also be removed at the same time, and the maintenance work becomes easy. Moreover, since the heat exchange part 33a of a large area is opposingly arranged in the inclination board outer peripheral part of the lower collar part 6a of the Glen tank 6, the lower part of the Glen tank 6 can be heated in a wide range, and grain and The heat exchange efficiency can be increased. Moreover, since the heat exchanging part 33a of the Glen tank ring cooling water pipe 33b is covered with the cover 43, the heat hardly leaks to the outside, and the heat exchange ratio can be increased.

  Moreover, when drying the grain in the Glen tank 6 by the Glen tank circulation cooling water pipe 33b, as shown in FIGS. 1-3, the heat exchange part 33a is made to follow a vertical direction at the center part of the left-right direction of the Glen tank 6. Even if it arrange | positions in, it can anticipate the effect similar to the said embodiment.

  Further, as shown in FIG. 2, when the rear end portion of the grain tank 6 is configured to rotate around the cylindrical body of the wheat kernel 6b, the Glen tank 6 is rotated to the right outside, thereby The circulating cooling water pipe 33b also rotates integrally, and maintenance of the Glen tank 6, the Glen tank circulating cooling water pipe 33b, and the heat exchange unit 33a is facilitated.

  Further, as shown in FIG. 2, the Glen tank circulation cooling water pipes 33 b and 33 b are guided upward through the vicinity of the cylindrical portion of the grained helix 6 b of the Glen tank 6, and then from the middle rear part of the Glen tank 6 to the heat exchanging portion 33 a When connected, even when the Glen tank 6 is rotated, the wrapping and expansion / contraction of the Glen tank circulation cooling water pipes 33b and 33b can be prevented, and durability can be enhanced.

Next, another control mode will be described based on FIGS. 13 and 14.
As shown in FIG. 13, the power of the engine E is transmitted to the lower helix 6 a, the cereal helix helix 6 b and the discharge auger 6 c of the glen tank 6 via the glen tank belt transmission 46, and the discharge clutch lever 47 is operated. Thus, the discharge clutch 49 can be turned on / off via the discharge clutch wire 48.

  Further, as shown in FIG. 14, a discharge clutch detection sensor SE2 for detecting whether the discharge clutch 49 is turned on / off and an moisture meter 50 are connected to the input side of the control unit (CPU) 42 via an input interface for control. Control valve drive means SO1 is connected to the output side of the section 42 via an output interface.

  According to the above configuration, when the discharge clutch detection sensor SE2 detects the entry of the discharge clutch 49, the control valve 34 is switched by a command from the control unit 42, and the cooling water heated by the engine E is circulated in the circulating cooling water pipe 32 and the Glen tank circulation. It is sent to the cooling water pipe 33b and returns to the engine E through the heat exchanging part 33a facing the lower flange part 6a of the Glen tank 6.

  Accordingly, it is possible to dry the grain of the Glen tank 6 while enhancing the heat exchange efficiency of the heated cooling water, promote the flow of the grain, and quickly perform the discharge operation. Further, when the discharge clutch detection sensor SE2 detects the disconnection of the discharge clutch 49, the control valve 34 is switched to circulation of the coolant from the engine E to the radiator 31 side.

Next, another control mode will be described based on FIGS. 13 and 14.
When the moisture meter 50 detects moisture equal to or higher than a predetermined moisture value, the control valve 34 is switched by a command from the control unit 42, and the heated cooling water from the engine E passes through the circulating cooling water pipe 32 and the Glen tank circulating cooling water pipe 33b. Then, it is sent to the heat exchanging portion 33 a of the lower flange portion 6 a of the Glen tank 6 and is returned to the engine E.

  Accordingly, the grain in the glen tank 6 is dried while enhancing the heat exchange efficiency of the cooling water to promote the flow of the grain, and the discharging operation is quickly performed while preventing the grain from adhering to the lower heel part 6a. Can do.

Side view of the entire combine Top view of the entire combine Combine rear view Cutting side view of threshing section Block diagram showing the flow of the circulating cooling water pipe Cutting side view of threshing section Block diagram showing the flow of the circulating cooling water pipe Side view of transmission Control block diagram Side view of the entire combine Combine rear view Block diagram showing the flow of the circulating cooling water pipe Side view of transmission Control block diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 21 Wind selection part 22 Karatsu 22a, 22b Left and right air intake 31 Radiator 32 Circulation cooling water pipe 33 Karatsu circulation cooling water pipe 33a Heat exchange part E Engine

Claims (2)

  In the combine provided with the engine (E) and the wind sorting part (21) for wind-removing the cereal, a circulating cooling water pipe (32, 32) for circulating between the engine (E) and the radiator (31) is provided. The branch cooling water pipe (33) is branched from the portion of the circulating cooling water pipe (32) that flows from the engine (E) to the radiator (31), and passes through the periphery of the wind sorting part (21) to the engine (22). E) It combines so that it may recirculate | reflux and the part of this Karatsu circulating cooling water pipe (33) may be arranged facing the part where the wind of said Karatsu (22) flows.   A heat exchanging section that is configured to suck in from the left and right air inlets (22a, 22b) of the tang (22) and send out the selected air from the front side of the tang (22), and spreads in a flat shape of the tang circulation cooling water pipe (33). The combine according to claim 1, wherein (33a) is disposed opposite to the left and right air inlets (22a, 22b) of the tang (22).

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