JP5453039B2 - Suction fan structure for rotary screen in combine - Google Patents

Description

  The present invention relates to the arrangement of a suction fan for a rotary screen in a combine and the related structure.

  Conventionally, in a combine, an engine and a radiator are disposed on the right side of the engine room, a cooling fan is disposed between the engine and the radiator, and an outside air introduction cover is disposed on the right side of the radiator. It is arranged.

  The outside air introduction cover is provided on the side of the engine room so as to be freely opened and closed. Therefore, when the cooling fan is operated to cool the engine or radiator by sucking and contacting the outside air, the outside air outside the engine room is sucked from the outside air introduction port of the outside air introduction cover through the rotary screen and comes into contact with the engine or the like. And fulfill the cooling function. At this time, the rotary screen of the outside air introduction port functions as a dustproof means for preventing outside dust from being introduced into the engine room together with the cooling air.

  In addition, a cylindrical intake duct is disposed and supported on the outer surface of the rotary screen, and the intake duct sucks and removes external dust adhering to the outer surface of the rotary screen and discharges it outside the engine room. For this purpose, the intake duct communicates with the suction fan via the suction pipe and sucks dust by the rotation of the suction fan by the engine and discharges it from the discharge port to the outside of the engine room. .

JP 2008-74171 A

  However, in Patent Document 1, since the suction fan is driven via a transmission belt from the engine, the position is inevitably limited to the front portion of the engine room, that is, the rear lower position of the cabin. there were. Accordingly, since the suction fan communicating with the intake duct is disposed at the front part of the engine room, that is, at the rear lower position of the cabin, the suction fan is located below the cabin getting-on / off step, and the space below the step cannot be effectively used. Further, since it is also located on the crawler front end rotation part, there is a defect that mud or the like accumulated on the crawler front end rotation part scatters to the suction fan as the crawler rotates and damages the suction fan.

  Furthermore, the dust discharged from the suction fan is discharged diagonally forward of the step, that is, toward the front of the cutting part due to the position of the suction fan. There was a risk of being sprayed and adhering to the cereal or mixed into a bundle of harvested cereals.

Therefore, in order to solve the above-mentioned problem, the combine according to claim 1 is a crawler travel type combine in which an engine room is disposed behind the kicabin and a glen tank is disposed behind the engine room. A suction fan for a rotary screen provided on the side surface is arranged between the Glen tank and the engine, and the drive of the suction fan is led from an interlocking mechanism that reaches the input shaft of the Glen tank, and the interlocking mechanism is an output shaft of the engine. And a passive bevel gear shaft disposed parallel to the output shaft, a drive bevel gear shaft coupled in parallel with the passive bevel gear shaft via a bevel gear, and a drive bevel gear shaft disposed in parallel. A suction belt, a drive belt bevel gear shaft and a suction fan shaft that are linked together via a pulley. Disposed in a grain tank input shaft which is operatively connected via a belt between pulleys provided respectively, and characterized by being configured by.

The invention according to claim 2 is characterized in that, in the invention according to claim 1 , the discharge port from the suction fan is directed between the left and right crawlers.

  According to the first aspect of the present invention, since the suction fan for the rotary screen is disposed between the glen tank and the engine, a space is provided at the front of the engine room located behind the cabin, that is, below the cabin step. Therefore, members that require daily maintenance such as batteries and cooling water sub-tanks can be placed in this space, and because this space is close to the outside and easy to maintain, It has the effect of facilitating daily maintenance of batteries and the like.

  Furthermore, since the suction fan is arranged between the grain tank and the engine, that is, on the side of the engine room, the suction fan drive system can be taken from a drive system related to the Glen tank other than the engine. Thus, there is an effect that the interlocking mechanism in the engine room can be simply configured. In addition, the suction fan is located between the glen tank and the engine, and is located away from the crawler front end rotation part, so that the suction is not directly received by the scattering of mud from the crawler front end rotation part. There is an effect that can contribute to protection of the fan.

Further , according to the first aspect of the present invention, the dimension in the crankshaft direction is shortened compared to the conventional interlocking structure driven from the engine in order to guide the suction fan drive from the interlocking mechanism reaching the input shaft of the Glen tank. As a result, the left and right dimensions of the engine-related mechanism can be made compact, and maintenance of the suction fan drive system, for example, the interlock belt, can be easily performed from the front space of the Glen tank.

According to the second aspect of the present invention, since the discharge port from the suction fan is directed between the left and right crawlers, the dust blown out from the suction fan falls into the field scene from between the left and right crawlers. There is an effect that does not require a complicated operation such as dropping to a predetermined place and cleaning.

It is the side view which showed the whole structure of the combine in embodiment of this invention. It is the front view which showed the structure of the engine room of the combine in embodiment of this invention. It is the side view which showed the structure of the engine room of the combine in embodiment of this invention. It is the top view which showed the structure of the engine room of the combine in embodiment of this invention. It is the perspective view which showed the suction fan of the combine in embodiment of this invention, and the structure of the periphery. It is the power transmission diagram which showed the structure of the interlock mechanism of the drive of the suction fan of a combine and the drive of a glen tank in embodiment of this invention.

  Below, the combine in this embodiment is demonstrated, referring drawings.

  A shown in FIG. 1 is a combine according to the present invention. The combine A has a fuselage frame 2 mounted on a pair of left and right crawler-type traveling sections 1 and 1, and is cut at the front end of the fuselage frame 2. The threshing part 4 is disposed on the left front part on the machine body frame 2 and the sorting part 5 is disposed immediately below the threshing part 4 while the rear part of the sorting part 5 is installed. In addition, a waste treatment unit 6 is disposed immediately after the threshing unit 4. 11 is a cutting blade device.

  As shown in FIG. 1, the combine A has an engine E disposed at the right front part on the body frame 2, a cabin 9 disposed immediately above the engine E, and a right side of the cabin 9. The Glen tank 12 is disposed at the position.

  Next, the structure of each part of the combine A will be described with reference to FIGS.

  As shown in FIG. 1, the traveling unit 1 has a traveling frame 13 attached to the lower part of the body frame 2, and the driving wheel 14 is interlocked and connected to the front end of the traveling frame 13, while the traveling unit 13 is idle at the rear end of the traveling frame 13. A wheel 15 is rotatably supported, and a crawler belt 16 is wound between the drive wheel 14 and the idle wheel 15. In the figure, 17 is a rolling wheel.

  The reaping part 3 reaps the cereal vegetation vegetated in the field, conveys the cereal cereal that has been harvested rearward and upward to a feed chain (not shown) by a cereal transportation mechanism provided in the reaping part.

  The threshing unit 4 is provided with a handling cylinder (not shown) in the handling chamber 19 and a crimp net (not shown) is stretched directly below the handling cylinder.

  The sorting unit 5 arranges a sorting body 22 in a position below the handling cylinder 20 provided in the threshing section 4 so as to be swingable back and forth. In response, the first item for collection and the second item for re-sorting are selected.

  As shown in FIGS. 1 and 2, the waste disposal unit 6 receives the grain transported backward by the grain transporter (not shown) as waste, and gradually transports it toward the center. (Not shown) and a waste cutter (not shown) that shreds the waste transported by the waste transporter.

  The grain storage unit 7 has a glen tank 12 disposed behind a cabin 9 described later. The Glen tank 12 stores the first grain selected by the selection unit 5 and can appropriately carry out the stored first grain by a grain carrying-out unit 8 described later.

  The grain unloading unit 8 lays the horizontal unloading screw conveyor 23 extended to the lower part in the Glen tank 12 with the axis line in the front-rear direction, and a lower end portion at the rear end of the horizontal unloading screw conveyor 23. The vertically conveying screw conveyor 24 connected in communication is arranged with its axis in the vertical direction, and the grain conveying auger 25 having the rear end connected to the upper end of the vertical conveying screw conveyor 24 is extended forward. And can be swiveled and turned up and down around the rear end.

  The cabin 9 is arranged on a cabin support machine frame (not shown) arranged in front of the machine body frame 2 and has a hollow box shape. The cabin 9 has an operation unit (not shown) and a driver's seat 28 installed therein. The driver's seat 28 is disposed in the rear center of the cabin 9 in a plan view, a front column (not shown) is disposed in front of the driver's seat 28, and a steering wheel (not shown) is disposed at the upper end of the front column. (Not shown), a shift lever (not shown) and the like are provided. Further, a passenger door 29 on which the driver gets on and off is disposed on the right side of the cabin 9, and a passenger step 30 on which the driver gets on and off the cabin 9 is disposed below the passenger door 29.

  The boarding / alighting step 30 is provided between the cabin 9 and the fuselage frame 2, and a plate-like first step 31 in which the driver steps on the ground from the ground, and further from the first step 31 to the driver's seat 28. And a plate-like second step 32 for stepping in to enter. The first step 31 is disposed so as to protrude to the side of the right front portion of the body frame 2, and the second step 32 is provided upward with a predetermined gap from the first step 31, and the upper side from the top of the body frame 2. It attaches to the protrusion piece 33 which protruded. An outside air introduction cover 35 including a rotary screen 34 is disposed below the cabin 9 and behind the getting-on / off step 30.

  As shown in FIGS. 1 and 2, the engine E is disposed in an engine room R formed below the driver's seat 28, and extends an intake path 41 upward from an intake port (not shown) of the engine E. Thus, outside air is taken in from the precleaner 42 which is the starting end of the intake passage 41 and used for combustion in the engine E, while the exhaust passage from the exhaust port (not shown) of the engine E to the upper rear side. 43 (tail pipe) is extended so that the exhaust gas is discharged from the end of the exhaust passage 43.

  Further, the engine E is interlocked and connected to each power mechanism unit such as the cutting blade device 10 and a transmission unit (not shown) via a transmission mechanism (not shown). And by driving the engine E, each power mechanism part operates in conjunction.

  An engine E is disposed in the engine room R, a radiator 36 is disposed on the right side of the engine E, and a battery BT and a water cooling sub-tank T are disposed on the right front portion of the engine E, respectively. Further, a cooling fan 50 is interposed between the engine E and the radiator 36. In addition, the cooling fan 50 is connected to the output shaft from the engine E and cools the radiator 36.

  An outside air introduction cover 35 is disposed on the right outer side of the engine E, that is, on the outer side of the radiator 36 disposed in the engine room R so as to face the radiator 36. The outside air introduction cover 35 is pivotally attached to the aircraft via a pivot provided on the rear side of the aircraft so that it can be opened and closed to the right side of the aircraft, and a circular outside air inlet G is formed at the approximate center thereof. When the cooling fan 50 is rotated by driving the engine E, the outside cooling air is taken into the engine room R through the radiator 36 by the suction force, and the engine E is cooled together with the radiator 36.

  A rotary screen 34 made of a circular mesh body is rotatably disposed in the outside air introduction port G. The outside air introduction port G is closed by the rotary screen 34, and the cooling air sucked from outside air through the outside air introduction port G is used. The contained dust is prevented from entering by the rotary screen 34 so that the dust is prevented from entering the engine room R.

  As shown in FIG. 6, the rotary screen 34 is pivotally supported by the outside air introduction cover 35 via a central support shaft 75, and an outer peripheral side roller 77 provided with a bent peripheral portion 76 of the rotary screen 34 on the outer peripheral side. And an inner peripheral roller 78 provided on the inner peripheral side, the drive shaft of the screen rotation motor 79 is connected to the drive shaft of the outer peripheral roller 77, and the outer peripheral roller 77 and the inner peripheral roller are connected by the screen rotation motor 79. The rotary screen 34 is rotated by rotating 78.

  On the outer surface of the rotary screen 34 that closes the outside air introduction port G, a cylindrical intake duct 37 having an abutment surface is disposed in the proximity state, and the proximal end portion of the intake duct 37, that is, the rotary screen 34. A dust intake duct 38 is continuously provided at a portion located at the periphery of the engine, and the dust intake duct 38 extends inward of the engine room R, and a suction port of a suction fan case 39 disposed in the rear part of the engine room R. 44.

Reference numeral 40 denotes a suction fan accommodated in the suction fan case 39 via a fixed bracket attached on the body frame 2. The suction fan case 39 has a suction port 44 for sucking dust and the like in the upper part, and a dust discharge port 45 for discharging dust sucked in the lower part to the outside. In the suction fan case 39, a fan main body 46 composed of a plurality of blades is rotatably disposed around the suction fan shaft 47. The suction fan shaft 47 protrudes from the back surface of the suction fan case 39, and a fan drive pulley 48 is disposed at the tip thereof so that driving power is input from the interlock mechanism 60 of the Glen tank 12 described later. I have to.

  Further, the dust discharge port 45 of the suction fan case 39 communicates with the opening at the start end of the dust discharge duct 49. The dust discharge duct 49 is in the space K between the left and right crawlers 51L and 51R of the traveling unit 1 in the engine. The terminal opening faces the space below the room R. Accordingly, the dust sucked from the outer surface of the rotary screen 34 by the intake duct 37 is finally discharged to the space K between the left and right crawlers 51L and 51R through the dust discharge duct 49.

  The suction fan 40 is disposed in the rear part in the engine room R as described above, and specifically, is disposed between the engine E and the glen tank 12. That is, a Glen tank 12 is disposed behind the engine room R, and a suction fan case 39 is interposed in a space position therebetween, in particular, a space position facing the engine E in the lower part of the Glen tank 12. 40 is disposed.

  With this configuration, the suction fan 40 is disposed as close as possible to the lower portion of the front side wall of the grain tank 12, and accordingly, the suction fan 40 and a grain tank input shaft of the grain tank 12 to be described later. It is possible to easily connect with the interlocking mechanism 60 reaching 68. In addition, maintenance of the drive system of the suction fan 40, for example, the interlock belt, can be easily performed from the front space of the Glen tank 12 by rotating the Glen tank 12 to the right side of the machine body.

  Inside the Glen tank 12, a horizontal carry-out screw conveyor 23 for carrying the stored grain backward is horizontally laid near the bottom, and the end of the horizontal carry-out screw conveyor 23 is for vertical carry-out. The screw conveyor 24 is arranged in the vertical direction, and the grain carrying out auger 25 is connected to the upper end of the vertical carrying screw conveyor 24 so as to be able to turn left and right and turn up and down above the ceiling plate of the Glen tank 12. ing.

  In the Glen tank 12 configured as described above, the lateral carry-out screw conveyor 23 is mounted on the front and rear of the inner bottom of the Glen tank 12, and the front end shaft end thereof is connected to the output shaft 61 of the engine E via the interlocking mechanism 60. Linked together.

  As shown in FIG. 6, the interlocking mechanism 60 is passively connected via an engine belt 63 suspended between an output shaft 61 of the engine E and a passive bevel gear shaft 62 disposed in parallel to the output shaft 61, and a bevel gear 64. A drive bevel gear shaft 65 linked and connected in parallel with the bevel gear shaft 62, a suction fan shaft 47 arranged in parallel with the drive bevel gear shaft 65, and the drive bevel gear shaft 65 and the suction fan shaft 47 are linked via pulleys 66a and 66b. The connected interlocking belt 67 and the Glen tank input shaft 68 are arranged in parallel with the drive bevel gear shaft 65 and interlocked with each other via a belt 70 between pulleys 69a and 69b. Reference numeral 72 denotes a drive motor for rotating the rotary screen 34. In the figure, reference numeral 73 denotes an auger clutch 73.

  Therefore, the power of the engine E is transmitted to each mechanism of the interlocking mechanism 60 as follows. That is, the power from the engine E is transmitted from the output shaft 61 of the engine E → the passive bevel gear shaft 62 → the drive bevel gear shaft 65 → the Glen tank input shaft 68 to drive the Glen tank 12. The power from the engine E is transmitted to the output shaft 61 of the engine E → the passive bevel gear shaft 62 → the drive bevel gear shaft 65 → the suction fan shaft 47 to drive the suction fan 40.

  In the interlocking mechanism 60 thus configured, the suction fan shaft 47 is provided with the suction fan 40, and sucks and discharges dust such as chopped grains from the intake duct 37. Further, the Glen tank input shaft 68 linked from the engine E via the output shaft 61 and the passive / drive bevel gear shafts 62 and 65 is linked to the starting end of the lateral carry-out screw conveyor 23 pivoted on the inner bottom of the Glen tank 12. doing.

  A Glen tank drive case 71 is connected to the front wall of the Glen tank 12, and the Glen tank drive case 71 is connected to the drive bevel gear shaft 65 and the Glen tank input shaft 68 in the interlocking mechanism 60, and between the shafts. Therefore, the suction fan 40 is linked to the suction fan shaft 47 by transmitting power from the drive bevel gear shaft 65 protruding from the case to the suction fan shaft 47 via the interlock belt. Done.

  Thus, the suction fan 40 can be driven from the drive system related to the Glen tank 12, and the interlocking mechanism 60 that is conventionally provided in the right front portion of the engine room R is eliminated, and the lost engine is eliminated. A space appears in the right front portion of the room R, and a space for arranging parts and the like for daily maintenance in the space portion increases. Further, the drive of the suction fan 40 can be simply configured from the existing drive system related to the Glen tank 12 via the interlocking mechanism 60.

  Then, the combine in the present embodiment sucks dust such as chopped cereals adhering to the outer surface of the rotary screen 34 by the suction fan 40 as follows into the space K between the left and right crawlers 51L and 51R. Can be discharged. That is, when the cooling fan 50 is rotated by driving the engine E, external cooling air is taken in by the suction force, and the taken cooling air is taken into the engine room R via the radiator 36, and the engine E It cools itself.

  At this time, when the suction fan 40 is driven while rotating the rotary screen 34, dust such as cereals adhering to the outer surface of the rotary screen 34 is sucked through the suction duct by the suction force of the suction fan 40, and The air is finally discharged from the suction fan 40 through the dust discharge duct 49 to the space K between the left and right crawlers 51L and 51R.

  Thus, since the discharge port from the suction fan 40 is directed between the pair of left and right crawlers 51L and 51R, the dust blown out from the suction fan 40 falls from the left and right crawlers 51L and 51R to the field scene, There is no need for cumbersome work such as dropping and cleaning the aircraft.

  Further, in the combine according to the present embodiment, since the suction fan 40 is disposed between the Glen tank 12 and the engine E, the front part of the engine room R located behind the cabin 9, that is, the boarding / alighting step 30 of the cabin 9. A space will appear below. A battery BT for driving the engine, a sub-tank T for water cooling for the radiator 36, and the like can be arranged in the appearing space.

  For example, the water cooling sub tank T for the radiator 36 can be disposed beside the radiator 36, and the battery BT can be disposed on the body frame 2 adjacent to the first step 31 of the getting-on / off step 30. Then, by rotating the outside air introduction cover 35 provided with the rotary screen 34 to the right side, the maintenance in the space below the cabin 9 can be performed, and the water in the water cooling sub tank T of the radiator 36 can be filled. In addition, it becomes easy to replace the old battery BT that has been used for a long time with the new battery BT.

  Conventionally, since the suction fan 40 is provided above the front end rotation portions of the crawlers 51L and 51R, the suction fan 40 receives the scattering of mud and the like directly from the front end rotation portions of the crawlers 51L and 51R. Although it may be damaged, since the suction fan 40 is disposed between the glen tank 12 and the engine E in the combine according to the present embodiment, it is located away from the front end rotation portion of the crawlers 51L and 51R. It is possible to contribute to the protection of the suction fan 40 without directly receiving the scattering of mud or the like from the crawlers 51L and 51R front end rotation portions.

  In the present embodiment, dust such as broken grains is discharged from the suction fan 40 through the dust discharge duct 49 to the space K between the left and right crawlers 51L and 51R. The above-mentioned rocking mechanism can be extended to be connected continuously, and the dust and the like can be discharged to the sorting unit 5 and blown to the waste processing unit by the Kara sorting air. In this way, the dust and the like taken in by the suction fan 40 can be processed together with the waste that is normally selected in the waste disposal unit.

A Combine R Engine room 10 Cabin 12 Glen tank 34 Rotary screen 40 Suction fan 51L, 51R Crawler 60 Interlocking mechanism 68 Input shaft

Claims (2)

In a crawler-type combine that has an engine room behind the cabin and a Glen tank behind it,
A suction fan for the rotary screen provided on the side of the engine room is arranged between the Glen tank and the engine, and the suction fan is driven from an interlocking mechanism that reaches the input shaft of the Glen tank.
The interlock mechanism includes an engine belt suspended between an output shaft of the engine and a passive bevel gear shaft disposed in parallel to the output shaft, a drive bevel gear shaft coupled in parallel with the passive bevel gear shaft via a bevel gear, A suction fan shaft disposed in parallel with the drive bevel gear shaft, an interlocking belt in which the drive bevel gear shaft and the suction fan shaft are interlocked and connected via a pulley, and between the pulleys disposed in parallel to the drive bevel gear shaft. Combined with a Glentank input shaft linked through a belt . The combine according to claim 1, wherein the outlet from the suction fan is directed between the left and right crawlers.

Images