JP2019103520A - Combine harvester - Google Patents

Abstract

To provide a combine harvester that allows maintenance work of a threshing device to be easily performed in a stable posture.SOLUTION: A threshing device 4 for threshing reaped crops and a grain storage part 5 for storing grains obtained by threshing are provided so as to be located side by side in a machine body horizontal width direction. A workbench 89 is provided between the threshing device 4 and the grain storage part 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combine, and more particularly to a combine having a threshing device for threshing a cropped crop and a grain storage unit for storing grains obtained by the threshing treatment.

  In the conventional combine, it is possible to swing open the top plate of the threshing device to perform maintenance work such as cleaning the inside of the threshing device and maintenance inspection, and the threshing device and the grain storage unit There is an open space between them, and a transport apparatus for transporting threshing products such as grains and second products is provided (for example, see Patent Document 1).

  Then, when performing the maintenance operation as described above, for example, the grain storage part is moved laterally outward so that the operator can open widely between the threshing apparatus and the grain storage part so as to enter; A work table or the like prepared separately was used as a platform to work by opening a top plate located high from the side of the threshing apparatus.

JP, 2010-220563, A

  In the above-described conventional configuration, when performing the maintenance operation as described above, it is necessary to open the top plate at the high position and insert the hand into the inside of the threshing device from the high position on the upper side of the side wall of the threshing device There is. When work is performed using a separately prepared work platform or the like as a step, the work must be performed with an unstable posture in which the feet are not stable, which makes the work difficult.

  Therefore, it has been desired to be able to easily carry out such maintenance work of the threshing device in a stable posture.

  A characteristic configuration of the combine according to the present invention is that a threshing device for threshing a cropped crop and a grain storage unit for storing grains obtained by the threshing process are located side by side along the width direction of the fuselage. It is provided in a state, and a work bench is provided between the threshing device and the grain storage part.

  According to the present invention, the workbench is provided between the threshing device and the grain storage part and fixed to the machine body. When performing maintenance work such as cleaning of the inside of the threshing device and maintenance inspection, the worker can perform work in a stable posture by using this work bench.

  For example, even in the case of opening the top plate and inserting a hand into the interior of the threshing apparatus from a high position on the upper side of the side wall of the threshing apparatus, the operator uses the work bench to Work can be performed in a stable posture in which the feet are firmly supported.

  Therefore, according to the present invention, it has become possible to easily carry out the maintenance operation of the threshing device with a stable posture.

  In the present invention, it is preferable that the work bench extends rearward from the front end of the threshing device.

  According to this configuration, since the work bench is provided rearward from the front end of the threshing apparatus, maintenance work can be favorably performed at least on the front side of the threshing apparatus.

  To add the explanation, in the combine, when the reaping work is carried out, the reaper is provided from the reaper provided at the front of the machine to the front end of the threshing device, and inside the threshing device, there are many at the front end side The harvest grain will be threshed. As a result, the front end side portion of the threshing apparatus has a large burden associated with the threshing process, and is likely to be damaged, which may require a maintenance operation.

  Therefore, by providing the work bench as described above, the maintenance work can be favorably performed at the front end side portion of the threshing device where there is a high possibility of being subjected to the maintenance work.

  In the present invention, preferably, the work bench extends rearward from a location on the front side of the threshing apparatus.

  According to this configuration, since the work bench is provided rearward from a location on the front side of the threshing apparatus, maintenance work can be favorably performed at least on the front end side location of the threshing apparatus.

  To add the explanation, in the combine, when the reaping work is carried out, the reaper is provided from the reaper provided at the front of the machine to the front end of the threshing device, and inside the threshing device, there are many at the front end side The harvest grain will be threshed. As a result, the front end side portion of the threshing apparatus has a large burden associated with the threshing process, and is likely to be damaged, which may require a maintenance operation.

  Therefore, by providing the work table as described above, the maintenance work can be favorably performed at the front side portion of the threshing device where the maintenance work is highly likely to be required.

  In the present invention, the work bench is preferably extended to the rear end of the threshing device.

  According to this configuration, since the workbench extends to the rear end of the threshing apparatus, when the operator gets on the workbench and performs maintenance work inside the threshing apparatus, at any position in the longitudinal direction of the threshing apparatus Even if there is, the work can be done well.

  In the present invention, it is preferable that the work bench extends in the longitudinal direction of the machine along the side wall of the threshing apparatus.

  According to this configuration, since the workbench extends in the longitudinal direction of the machine along the side wall of the threshing device, the workbench approaches the threshing device at any position in the front-rear direction of the threshing device. When a worker gets on the work bench and works, the work can be easily performed in a state in which the work target position is approached.

  In the present invention, the top plate covering the upper portion of the throttling chamber in the threshing apparatus swings along the longitudinal direction of the machine, in a closed state covering the upper side of the throttling chamber and an open state opening the upper side It is preferable that the work table is swingably supported around a fulcrum, and the work bench is provided at a side portion on the side opposite to the side where the swing fulcrum of the threshing apparatus is located.

  According to this configuration, when the top plate is switched to the open state, the upper part of the treatment room is largely opened, so that the maintenance work inside the treatment room can be easily performed. After the maintenance work is completed, the threshing work can be satisfactorily performed by switching the top plate to the closed state.

  And, since the workbench is provided on the side opposite to the side where the rocking fulcrum of the threshing device is located, the operator on the workbench should be positioned on the rocking end side of the top plate. Thus, the swinging end side of the top plate can be held by hand to be easily opened and closed.

  In the present invention, the threshing apparatus is provided with an upward top support surface for receiving and supporting the top in the closed state, and the work bench and the top support surface have the same or substantially the same height. It is preferable to set to.

  According to this configuration, when the top plate is switched to the closed state, the swinging end side portion of the top plate is received and supported by the top plate support surface. When the operator on the work bench holds the top plate and switches to the open state, the swinging end side portion of the top plate is separated from the top plate support surface as the top plate swings, and The upper side is opened.

  Since the workbench and the top support surface are set to the same or substantially the same height, the operator who is on the workbench can use the top support surface, which is open at the top, as a part of the work support. It can be used as a tool to make work easier.

  In the present invention, preferably, the workbench is supported by the threshing device.

  According to this configuration, since the workbench is supported by the threshing device, the threshing device can also be used as a support frame, and a complex support structure such as separately providing a dedicated frame member for supporting the workbench is It is unnecessary and can support the work bench with a simple configuration.

  In the present invention, the top plate covering the upper portion of the throttling chamber in the threshing apparatus swings along the longitudinal direction of the machine, in a closed state covering the upper side of the throttling chamber and an open state opening the upper side The threshing device is supported swingably around a fulcrum, and the threshing device is provided with an upward top plate support surface for receiving and supporting the top plate in the closed state, and a portion located on the threshing device side of the work bench is It is preferable that the support is mounted on the top support surface.

  According to this configuration, when the top plate is switched to the closed state, the swinging end side portion of the top plate is received and supported by the top plate support surface, and the portion located on the work threshing device side is the top plate support It is placed and supported on the surface.

  That is, the top plate support surface for receiving and supporting the top plate can be effectively used to support the work table, and a dedicated frame member for supporting a portion of the work table located on the threshing device side Can be eliminated, and the configuration can be simplified.

  In the present invention, it is preferable that a frame body for supporting a portion located on the grain storage side of the work bench is provided.

  According to this structure, the part located in the grain storage part side of a work bench is supported by the frame body. The portion located on the threshing device side of the workbench can be supported using the threshing device, and the portion located on the grain storage side of the workbench is supported by the frame body to stabilize the workbench Support.

  In the present invention, the machine body frame is swingable around the upper and lower axis cores in a working posture in which the grain storage unit is retracted toward the inside of the machine to store the grain, and a maintenance posture in which the grain is projected outside the machine. The grain tank supported by the frame, which is provided across the column erected from the body frame, the column and the grain storage part, and the position where the grain storage part can be held in the working posture A holding mechanism is preferably provided, and the support supports a portion positioned on the grain storage side of the work bench as the frame body.

  According to this configuration, the grain tank as the grain storage portion is supported by the machine body frame so as to be swingable about the vertical axis center so as to be changeable in the working posture and the maintenance posture. And, a pillar provided for holding the grain tank in the acting posture by the position holding mechanism functions as a frame body to support a portion positioned on the grain storage portion side of the work bench.

  That is, since the support provided for holding the grain tank as the grain storage portion in the working posture is effectively used to support the portion positioned on the grain storage portion side of the work bench, The combined use makes it possible to support the workbench with a simple configuration without causing complication of the structure as in the case of providing a dedicated support frame for supporting the workbench.

  In the present invention, the machine body frame can be pivoted about the vertical axis center in a working posture in which the grain storage unit is retracted toward the inside of the machine to store the grain, and a maintenance posture in which the grain is projected outside the machine. A grain tank supported on the rear frame, standing from the rear of the body frame and supporting the grain storage portion rotatably, and connecting the rear pillar and the threshing device It is preferable that a member be provided, and the connecting member support a portion of the work table located on the grain storage portion side as the frame body.

  According to this configuration, the grain tank as the grain storage portion is supported by the machine body frame so as to be swingable about the vertical axis center so as to be changeable in the working posture and the maintenance posture. That is, the grain storage portion is rotatably supported around the vertical axis by a rear support erected from the rear of the body frame, and the posture can be changed between the working posture and the maintenance posture. Further, the rear support post, which is loaded in the sideways direction to support the grain storage part, is connected to the threshing device by the connecting member, and the supporting strength in the sideways direction is improved. And this connection member functions as a frame body and supports the part located in the grain storage part side of a work bench.

  That is, since the connecting member provided to reinforce the rear post rotatably supporting the grain storage part is effectively used to support the portion positioned on the grain storage part side of the work bench, The combined use makes it possible to support the workbench with a simple configuration without causing complication of the structure as in the case of providing a dedicated support frame for supporting the workbench.

  In the present invention, a support member fixedly connected to the side wall of the threshing device and extended to the grain storage side is provided, and the support member is the frame body, and the grain storage of the work bench is provided. It is preferable to support the part located on the part side.

  According to this configuration, the support member fixedly connected to and firmly supported by the side wall of the threshing device is provided in a state of being extended to the grain storage portion side. And this support member functions as a frame body, and supports the part located in the grain storage part side of a work bench.

  Therefore, the support member fixed to the side wall of the threshing device supports the portion located on the grain storage side of the work table, so that the portion located on the threshing device side of the work surface is supported by the threshing device Then, it becomes possible to support stably each of the part located in the threshing apparatus side of a workbench, and the part located in the grain storage part side of a workbench using a threshing apparatus.

  In the present invention, it is preferable that anti-slip means be provided on the upper surface of the work bench.

  According to this configuration, when the operator carries out the work on the work bench, since the anti-slip means is provided, there is little possibility that the foot slips and the posture becomes unstable, and the work is performed with the stable posture. It can be carried out.

  In the present invention, an exhaust pipe through which exhaust gas from an engine mounted on the airframe flows is provided between the threshing device and the grain storage section, and the exhaust pipe is located below the work bench. It is preferable to be provided in the state of

  According to this configuration, the exhaust gas from the engine flows through the exhaust pipe provided between the threshing device and the grain storage part and is discharged to the outside. And, since the exhaust pipe is located below the workbench, an operator working on the workbench can be isolated from the exhaust pipe by the workbench and can work without any disadvantage in contact with the exhaust pipe.

  In the present invention, it is preferable that the rear end of the exhaust pipe be located above the work bench.

  According to this configuration, the rear end of the exhaust pipe is a portion where the exhaust gas of the engine is discharged outward, but since the rear end of the exhaust pipe is located above the work bench, the temperature is high. The exhaust of the engine can be released at the upper open outside of the workbench.

  As a result, the high temperature exhaust gas can be released outward well without flowing at the lower side of the work bench.

  In the present invention, the exhaust pipe is angled upward at a location forward of the rear end of the workbench, and a notch or opening through which the exhaust pipe passes is formed at the rear end of the workbench. Is preferable.

According to this configuration, a notch or opening is formed at the rear end portion of the work bench, and a portion where the exhaust pipe is angled upward passes through the notch or opening.
Instead of this configuration, for example, a configuration in which the rear end portion of the work bench is positioned forward of the point where the exhaust pipe is angled upward, in other words, the work bench at the point where the exhaust pipe is angled upward If the construction is cut out over the entire width, the front and back length of the work bench becomes short and the working range by the operator is limited to a narrow range.

  On the other hand, by adopting the above configuration, it is possible to make the working range by the operator as wide as possible along the longitudinal direction of the machine while allowing the posture change upward of the exhaust pipe.

  In the present invention, it is preferable that a cover member is provided to cover the outside of the grain storage portion side of the exhaust pipe, and the cover member is supported by the work bench.

  According to this configuration, the outside of the grain storage portion side in the exhaust pipe is covered by the cover member. For example, in the case where the grain storage portion is configured to be able to change its posture to a maintenance posture in which the grain storage portion projects outward in order to open the space formed between the grain storage portion and the threshing device, grain storage When the operator enters the space formed between the grain storage part and the threshing apparatus to perform maintenance work when the part is switched to the maintenance posture, the cover member may contact the exhaust pipe. Work can be done safely because it can be avoided.

  In the present invention, the cover member includes a lateral side that covers the lateral side of the exhaust pipe on the grain storage side, and a bottom that covers the lower side of the exhaust pipe, and the exhaust from the work bench Preferably, the vertical distance to the pipe is set larger than the vertical distance from the exhaust pipe to the bottom of the cover member.

  According to this configuration, since the cover member covers the lateral side of the grain storage portion side of the exhaust pipe and the lower side of the exhaust pipe, the safety of the work in the maintenance operation can be ensured. In addition, since the vertical distance from the workbench to the exhaust pipe is set larger than the vertical distance from the exhaust pipe to the bottom of the cover member, the heat from the exhaust pipe is less likely to be transmitted to the workbench, and the workbench is The safety of the work above can also be secured.

  In the present invention, a frame body supporting a portion of the work bench located on the grain storage portion side is provided to extend obliquely upward from the side wall of the threshing device to the grain storage portion side, It is preferable that a corner between the lateral side and the bottom of the cover member be supported by the frame body.

  According to this configuration, the frame body extends obliquely upward from the side wall of the threshing apparatus toward the grain storage portion side, and is configured with a sufficient supporting strength such as being constituted by linear members. Can be simplified. Then, since the frame body passes through the vicinity of the corner of the cover member, the corner of the cover member is supported using this frame.

  Therefore, by effectively using the frame body provided to support the work table and using it as the support member of the cover member, the support structure can be simplified as compared with the one provided with a dedicated support member.

  In the present invention, preferably, a heat insulating portion is provided between the workbench and the exhaust pipe.

According to this configuration, the heat from the exhaust pipe is blocked by the heat insulating portion and it becomes difficult to transfer to the work bench.
As a result, the worker working on the work bench is less susceptible to the heat, and the safety of the work can be enhanced.

In the present invention, the grain lifting and transporting machine is located on the lateral outside of the side wall of the threshing device and conveys the grain discharged to the outside from the threshing device upward toward the upper inlet of the grain storage section. The equipment is provided
When the work bench is divided in the front and back direction into a front side pedestal portion located on the front side of the grain pumping device and a rear side pedestal portion located on the rear side of the grain lifting device It is suitable.

  According to this configuration, after the grains obtained by the threshing process are discharged from the threshing apparatus to the outside, the grains are conveyed upward by the grain pumping apparatus and supplied from the upper inlet to the inside of the grain storage section.

  In order to efficiently store grains in the grain storage section, the upper inlet is preferably formed as high as possible in the grain storage section, and the grain pumping device is stored from the low position of the bottom of the threshing apparatus. It is better to extend vertically up and down to a high position at the top of the unit. Then, when a workbench is provided between the threshing device and the grain storage part, it interferes with the grain feeding device which is long in the vertical direction.

  Therefore, the grain is divided by forming the work table in the front and back side into the front side base portion located on the front side of the grain lifting device and the rear side side portion located on the rear side of the grain lifting device. It is possible to provide a work table over a wide range in the front-rear direction between the threshing device and the grain storage portion, while extending the grain feeding device vertically.

It is a whole side view of a combine. It is a whole top view of a combine. It is a top view of the rear of a combine. It is a side view of a threshing apparatus. It is a longitudinal front view of the rear of a combine. It is a rear view of a combine. (A) is a side view of an anteroposterior division part of an exhaust pipe, (b) is a longitudinal front view of an anteroposterior division part of an exhaust pipe. (A) is a side view of a front side exhaust pipe, (b) is a longitudinal front view of a front side exhaust pipe. (A) is a side view of the front and rear intermediate portion of the rear side exhaust pipe, and (b) is a longitudinal front view of the front and rear intermediate portion of the front side exhaust pipe. (A) is a cross-sectional plan view of the rear of the rear side exhaust pipe, (b) is a longitudinal rear view of the rear of the front side exhaust pipe. It is a whole side view of a combine. It is a whole top view of a combine. It is a side view of a threshing apparatus. It is a top view of the rear of a combine. It is a rear view of a combine. It is a side view of the front side exhaust pipe in the state covered with the side cover member and the partition member. It is a side view of the front side exhaust pipe in the state where the side cover member and the partition member were removed. It is a side view of the rear of a rear side exhaust pipe. It is a partially cutaway top view which shows the support structure of an exhaust pipe. It is a top view of the rear end part of an exhaust pipe. It is a vertical back view of an exhaust pipe arrangement part. It is a vertical back view which shows the structure of the cover member of another embodiment.

First Embodiment
Hereinafter, a first embodiment of a common type combine according to the present invention will be described based on the drawings.

〔overall structure〕
As shown in FIG. 1 and FIG. 2, the ordinary combine is provided with an operation unit 3 on the front right side of a traveling airframe 2 provided with a pair of left and right crawler traveling devices 1 and disposed behind the operation unit 3 A threshing device 4 for threshing the cropped crop and a grain tank 5 as a grain storage portion for storing grains obtained by the threshing treatment are provided side by side along the widthwise direction of the airframe ing. That is, the grain tank 5 is disposed on the right side of the machine and the threshing device 4 is provided side by side in the state on the left side of the machine. At the rear of the grain tank 5, an unloader 6 is provided as a grain discharging device that carries grain stored in the grain tank 5 out of the machine body. Further, the engine 7 is provided in a state of being located below the driving unit 3, and the power of the engine 7 is transmitted to each part of the combine.
In this embodiment, when defining the left and right directions, the left and right are defined in the direction of travel of the vehicle body. As a result, the display content on the drawing may not coincide with the left and right directions.

  A feeder 8 for transporting reaping grain gutters is connected to the front of the threshing device 4 so as to freely swing up and down around the horizontal axis, and a reaping portion 9 having a cutting width substantially corresponding to the width of the machine is connected to the front end of the feeder 8 It is done. The reaper 9 is a rotating reel 10 for scraping the planted grain to the rear, a hair clipper 11 of a clipper type for cutting and harvesting the plant origin of the planted grain, and a side of the cropped grain to the lateral side in the machine width direction. It is equipped with a transverse feed auger 12 and the like for feeding and transporting, and the grain scraps cut by the reaper 11 are transversely fed by the transverse feed auger 12 and supplied to the feeder 8. At the rear of the threshing device 4, a chopper 13 for shredding threshing stems and the like is provided.

Threshing device
As shown in FIGS. 5 and 6, the threshing device 4 is covered by the side wall 14 on the left and right sides, and is covered by the top 15 at the top. Then, on the upper side of the inner space surrounded by the left and right side walls 14 and the top plate 15, the rotating threshing drum 16 and a not-shown receiving net provided along the outer periphery thereof are conveyed by the feeder 8. A processing chamber 18 is formed to handle the incoming harvest grain. Further, at the lower part of the handling chamber 18, there is provided a sorting processing unit 19 for sorting the treated product leaking from the receiving net into grains, second parts, waste straw scraps and the like.

  The top plate 15 is supported by the threshing frame 21 so as to be pivotable around the longitudinal axis X1 of the machine body via the pivot point portion 20 provided at the left end, and covers the upper side of the throttling chamber 18 The posture is switchable between the posture and the open posture for opening the upper side of the handling room 18.

  As shown in FIGS. 5 and 6, at the upper left portion of the throttling chamber 18, there is provided an angular tubular upper frame body 22 extending in the front-rear direction which constitutes a part of the threshing frame 21. The top plate 15 is swingably supported by the upper frame body 22 located at the upper left portion of the squeeze chamber 18 via the pivot bracket 23 around the longitudinal axis X1 of the machine body.

  Further, as shown in FIGS. 7, 9 and 10, at the upper right portion of the throttling chamber 18, there is provided a rectangular cylindrical upper frame body 24 extending in the front-rear direction which constitutes a part of the threshing frame 21. The swinging side end of the top plate 15 is supported on the upper surface 24 a of the upper frame body 24 in a state of being switched to the use posture, and is removably fixed by a plurality of bolts. That is, the upper surface 24 a of the upper frame body 24 functions as a top support surface that receives the top 15 in the use posture.

  Although not shown, the rear end portion of the top plate 15 is provided with a gas damper which can be held in position while the top plate 15 is switched to the open position. Maintenance work can be easily performed.

  The sorting processing unit 19 receives a processing material leaked from the receiving net 17 and performs a swing sorting device (not shown) that performs sorting by swinging motion, a tile 26 that produces sorting wind, and a grain 1), and a second thing collection part 28 for collecting a second thing such as a grain with a branch etc. (see FIG. 4). The swing sorting apparatus does not describe the configuration in detail, but it sifts and sorts the processing material leaked from the processing chamber 18 while swinging and transferring it, and the grain (first item) is collected at the lowermost first item recovery unit The secondary material such as a grain with a branch is dropped to the secondary product recovery unit 28, and waste straw scraps and the like are discharged to the rear of the airframe.

  The kernels recovered by the first item recovery unit 27 are laterally transported to the right outside of the threshing apparatus 4 by the first screw (not shown). Then, the screw conveyor-type grain lifting and feeding as a treated product conveying portion which conveys the grain as the threshing treatment material conveyed outward outward on the right side upward and supplies it from the upper inlet 5A of the grain tank 5 to the inside of the tank A device 35 is provided. As shown in FIG. 4, the grain feeding device 35 is provided with a carrying screw 37 inside a cylindrical carrying case 36 which extends upward in a substantially vertical posture, and the upper portion of the grain tank 5 is provided with grains. A discharge unit 38 is provided with a scraping blade that discharges from the inlet 5A into the tank.

  The second thing collected by the second thing collecting portion 28 is transversely transported to the right outside of the threshing device 4 by a second screw not shown. And the second thing reduction device 40 as a processed material conveyance part which returns the second thing as a threshing process material conveyed to the right outward outward to the inside of the threshing apparatus 4 is provided. As shown in FIG. 4, the second product reduction device 40 is provided with a transport screw 42 inside a cylindrical transport case 41 like the grain pumping device 35, and the second end is placed at the upper end of the transport case 41. A discharge unit 43 provided with a scraping blade that discharges the material from the second product inlet formed in the threshing device 4 to the inside of the threshing device 4 is provided.

  As shown in FIG. 4, in the right side portion of the threshing device 4, the second product reduction device 40 extends forward and upward in the right side of the threshing device 4 from a position corresponding to the second screw 39. It is provided in an oblique position. In this manner, the second product is reduced as much as possible to a position closer to the upper side in the transport direction of the processing material in the rocking and sorting apparatus inside the threshing apparatus 4.

  As described above, the grain pumping device 35 is provided in a substantially vertical posture from the position corresponding to the first thing collecting portion 27, and the second thing reducing device 40 is from the position corresponding to the second thing collecting portion 28. It is provided in an oblique posture extending forward and upward, and as shown in FIG. 4, the grain pumping device 35 and the second product reducing device 40 are provided in a cross state in a side view of the airframe.

  As shown in FIGS. 3, 4 and 7, the upper side portion of the grain feeding device 35 is a side wall of the threshing device 4 by the front and rear pair of front and rear connection members 44 formed of a substantially L-shaped plate in plan view. It is connected to 14 and fixed. Connection of the pair of connecting members 44 is integrally connected by welding at one end to the transfer case 36 of the grain feeding device 35 by welding and the other end is integrally connected to the right upper frame body 24 of the threshing device 4 The bracket 45 is connected and fixed by fastening a bolt. As described above, the upper portion of the grain feeding device 35 is supported by the threshing device 4 via the connecting member 44. Therefore, as described later, even if the grain tank 5 is configured to be rotatable about the vertical axis, the discharge part 38 of the grain feeding device 35 and the upper inlet 5A of the grain tank 5 Is less likely to cause misalignment.

[Grain tank and unloader]
As shown in FIG. 1, the bottom of the grain tank 5 is provided with a front-to-back bottom screw 46 for feeding the grain stored inside the grain backward. The bottom surfaces of the grain tanks 5 located on the left and right sides of the bottom screw 46 are formed in an inclined posture in which the bottom screw 46 side is located downward. The bottom screw 46 is provided at a position deviated laterally outward (rightward) than the central position in the lateral width direction in the rear view of the vehicle body. The power is transmitted from the engine 7 to the bottom screw 46 via the transmission mechanism 47 on the front side of the airframe. The power transmission mechanism 47 is configured to be capable of turning on and off power transmission by operation of a clutch lever (not shown).

  As shown in FIG. 1, the unloader 6 has a straight tubular longitudinal shape that forms an elbow portion 6A that changes the horizontal transport path to a vertical transport path, and a straight longitudinal transport path that is continuous with one end of the elbow portion 6A. A grain discharging portion 6C is provided which includes a cylindrical portion 6B and discharges grains at the tip end of the vertical cylindrical portion 6B. The vertical cylindrical portion 6B includes a discharge screw 52 located inside the cylindrical case, and a bevel gear mechanism (not shown) in which the discharge screw 52 and the bottom screw 46 are provided inside the elbow portion 6A. Interlocking is linked via

  That is, the grain conveyed by the bottom screw 46 is fed into the vertical cylindrical portion 6B through the elbow portion 6A, is conveyed by the discharge screw 52 in the vertical cylindrical portion 6B, and is externally output from the grain discharging portion 6C. Exhausted. In the discharge cylinder portion 54 provided on the rear wall of the grain tank 5, the relative rotation is performed in a state where one end of the elbow portion 6A is freely pivotable around the back and forth direction rotational axis X2 of the bottom screw 46 It is connected freely.

  With such a support structure, the unloader 6 is swingably supported around the rotation axis X2 of the bottom screw 46 along the longitudinal direction with respect to the grain tank 5. Then, the unloader 6 has a storage posture in which the grain discharge part 6C is directed upward and retracted toward the inside of the machine body by the operation of the hydraulic cylinder 55, and a discharge posture in which the grain discharge part 6C protrudes outward. It is configured to be switchable.

  The grain tank 5 is supported by the body frame 48 so as to be swingable around the vertical axis Y, over the working posture for retiring the machine body and storing the grain, and the maintenance posture for projecting the grain outward. It is done. To add the description, as shown in FIGS. 1 and 6, a rectangular cylindrical rear side vertical frame 49 as a rear support is provided on the rear side of the grain tank 5 in a state of being fixedly installed from the airframe frame 48, The grain tank 5 is swingably supported around the vertical axis Y by the rear side vertical frame 49 via the pivot support portion 50.

  In order to switch the grain tank 5 in the working posture to the maintenance posture, it is necessary to separate the transmission upper side and the transmission lower side of the transmission mechanism 47 in advance by interrupting the transmission state of the transmission mechanism 47. In addition, by moving the grain tank 5 around the vertical axis Y in a state where the unloader 6 is switched to the storage posture, the unloader 6 is also integrally rocked. The rocking operation of the grain tank 5 is performed manually.

  A fixed holder 56 for holding the grain tank 5 in the working posture is provided at a swinging end (front side) of the grain tank 5, and the grain tank 5 is fixed A switching mechanism 57 is provided which can be switched between a state of engaging with 56 to hold the position and a state of releasing engagement with the fixed holder 56 to allow change of the attitude. The fixing holder 56 and the switching mechanism 57 constitute a position holding mechanism IH capable of holding the grain tank 5 in the acting posture.

  That is, the switching mechanism 57 can be engaged with the fixing holder 56 and held in position while the grain tank 5 is switched to the working posture, and the position holding to the fixing holder 56 is released. It can be switched to the maintenance attitude.

  To add the description, as shown in FIG. 4, in the space between the grain tank 5 and the threshing apparatus 4 in the space on the front side of the airframe, a square cylinder as a support in a state of being fixedly installed from the airframe frame 48 Front longitudinal frame 58 is provided. A channel-shaped bracket 59 which opens downward is integrally connected to an intermediate position on the upper side of the front longitudinal frame 58, and the rod-shaped rod 59 is penetrated in the front-rear direction over the longitudinal surface portions 59a of the front and rear sides of the bracket 59 The fixing holder 56 is integrally connected. The fixing holder 56 is provided in a state of largely projecting forward from the vertical surface portion 59 a on the front side.

  As shown in FIG. 5, the switching mechanism 57 provided on the grain tank 5 side has a spring-loaded engagement mechanism 60 engageable with the fixed holder 56 in the working posture, and an engagement mechanism of the engagement mechanism 60. An operating tool 61 which can be operated to release the engaged state, and a rod 62 which interlocks and links the operating tool 61 and the engagement mechanism 60 are provided. The switching mechanism 57 can switch the grain tank 5 to the maintenance posture by releasing the engagement state of the engagement member 64 by operating the operation tool 61 from the outer side of the machine body side.

〔Exhaust pipe〕
Next, the exhaust pipe 66 through which the exhaust gas from the engine 7 flows will be described.
As shown in FIGS. 1 to 4, the engine 7 is provided in a state located below the driving unit 3, and the exhaust gas (combustion exhaust gas) discharged from the engine 7 is a muffler 67 located above the engine 7. The exhaust gas passes through the exhaust pipe 66 and is discharged outward from the exhaust port 68.

  An exhaust cylinder 67a of the muffler 67 to which exhaust gas from the engine 7 is supplied is provided so as to discharge the exhaust gas in a diagonally left upward posture on the rear side. The exhaust pipe 66 is provided in a state where the exhaust port 68 for exhausting the exhaust gas to the outside is at a higher position than the supply port 69 to which the exhaust gas from the engine 7 is supplied. It is provided to extend upward between the device 4 and the grain tank 5.

  The exhaust pipe 66 has a supply port 69 to which the exhaust gas exhausted from the muffler 67 is supplied to the front side of the machine and surrounds the outer peripheral portion of the exhaust cylinder 67a of the muffler 67 and radially between the exhaust cylinder 67a and the exhaust cylinder 67a. It is formed with an interval. The exhaust pipe 66 is smoothly curved so as to change the posture from the front side straight portion 70 to the rear side of the airframe from the front side straight portion 70 linearly extending in a diagonally left upward direction on the rear side from the supply port 69. It has a curved portion 71 as a bent portion formed in a state, and a rear side straight portion 72 as a horizontally extending portion extending linearly from the curved portion 71 in a substantially horizontal posture toward the rear of the machine body. An exhaust port 68 is formed at the rear end of the rear side linear portion 72.

  As shown in FIG. 4, the aft side straight portion 72 passes the upper part of the machine body and passes between the threshing device 4 and the grain tank 5 and the grain from the front end of the grain tank 5. It is provided in a state of extending in the front-rear direction further to the rear side beyond the rear end portion of the grain tank 5. The rear side straight portion 72 is provided to extend in the front-rear direction further to the rear side than the rear end portion of the threshing device 4. Since the rear end of the grain tank 5 is located on the front side of the hull rather than the rear end of the threshing apparatus 4, the exhaust pipe 66 extends rearward more than the rear end of the grain tank 5, Further, it extends to the rear side more than the rear end of the threshing device 4.

  As described above, the exhaust pipe 66 guides the exhaust gas from the engine 7 located below the driving unit 3 in a diagonally left upward direction on the rear side by the front side straight portion 70, and then faces the rear of the vehicle in a substantially horizontal posture. And exhaust it to the outside by means of the rear side rectilinear portion 72 extending linearly, and guide the exhaust gas while passing between the operation unit 3 and the threshing device 4 in the front view of the vehicle body .

  As shown in FIGS. 3 and 4, the exhaust pipe 66 is composed of two pipe members of a front side exhaust pipe 66A and a rear side exhaust pipe 66B divided into front and rear, and the front side exhaust pipe 66A Forming a portion on the front side of the inner straight portion 70, the curved portion 71, and the rear straight portion 72, and forming a portion on the rear side of the rear straight portion 72 by the rear exhaust pipe 66B ing. Further, the exhaust pipe 66 is entirely provided at a position lower than the upper end of the threshing device 4 and lower than the upper end of the grain tank 5.

  An opening at the front end of the front side exhaust pipe 66A is a supply port 69 to which exhaust gas from the engine 7 is supplied. The supply port 69 is formed in a trumpet shape having a larger diameter toward the end. A gap is formed between the exhaust cylinder 67 a and the inner surface of the supply port 69 to form an outside air intake portion 73. In this configuration, when the exhaust from the engine 7 is supplied through the exhaust cylinder 67a of the muffler 67, the outside air is sucked through the outside air intake unit 73 by the ejector action accompanying the flow of the exhaust, and the exhaust and the outside air are mixed. The temperature of the exhaust can be reduced.

  The rear side exhaust pipe 66B is formed larger in diameter than the front side exhaust pipe 66A, and at the connection point between the rear end of the front side exhaust pipe 66A and the front end of the rear side exhaust pipe 66B, the diameter between them A gap is formed along the direction, and an outside air intake portion 74 utilizing the ejector action is formed in the same manner as the front end portion of the front side exhaust pipe 66A. Therefore, the temperature of the exhaust can be lowered by mixing with the outside air also at this point.

  Further, at the rear end portion of the exhaust pipe 66, an inclined guide body 75 is provided which guides the exhaust gas discharged rearward from the exhaust port 68 obliquely rearward and upward. The inclined guide body 75 discharges the exhaust gas toward the open space at the rear upper side of the airframe so that the exhaust gas can be easily dissipated.

Next, the support structure of the exhaust pipe 66 will be described.
As shown in FIG. 8, the connecting member 76 is integrally extended toward the obliquely upper front from an intermediate position on the upper side of the front side vertical frame 58, and the tip of the connecting member 76 and the front side exhaust pipe 66 A The bracket 77 connected to the middle part of the front side straight portion 70 in FIG.

  Further, a channel-shaped bracket 59 is integrally connected and fixed to the upper side of the front longitudinal frame 58, and a rectangular tubular horizontally-oriented connecting member 78 is extended toward the left side at the location. The left end portion of the laterally facing connector 78 is connected and fixed to the planar view channel-shaped reinforcing member 14 a in the side wall 14 of the threshing device 4 via the mounting plate 79. That is, the reinforcement of strength is achieved by connecting the upper part of the front side vertical frame 58 in the vertical orientation and the threshing device 4. Then, a bracket 78a provided integrally in a fixed manner in the lateral connection body 78 and a bracket 80 connected to an intermediate portion of the rear side straight portion 72 of the front side exhaust pipe 66A are connected by bolts.

  Therefore, the front side exhaust pipe 66A is stably supported by the front side vertical frame 58 at two places separated longitudinally.

  As shown in FIG. 7, the connecting member 44 positioned on the rear side of the fuselage of the front and rear connecting members 44 supporting the upper side portion of the grain pumping device 35 and the front end portion of the rear side exhaust pipe 66B are welded. And the bracket 82 integrally connected at one end with a bolt.

Further, as shown in FIGS. 6 and 10, the upper side portion of the rear side vertical frame 49 for supporting the grain tank 5 rotatably around the vertical axis Y and the side wall 14 of the threshing device 4 are connected. A rectangular tubular horizontally oriented connector 83 is provided as a rear side connecting member.
The horizontally-oriented connecting member 83 is integrally provided with a mounting plate 84 having a front and rear facing plate surface at the right end, and the mounting plate 84 and a plate-shaped mounting plate 85 fixed to the rear vertical frame 49 are bolts. Are linked by In addition, a mounting plate 86 having a plate surface facing in the left and right direction is integrally provided at the left end portion of the horizontal connection body 83, and the mounting plate 86 is a reinforcing member 14 a in a planar view channel shape in the side wall 14 of the threshing device 4. It is connected by a bolt. Then, the bracket 87 in a front view substantially L-shape connected and fixed to the sideways connecting body 83 and the bracket 88 connected and fixed to the lower side of the rear side exhaust pipe 66B are connected by bolts, and the rear side exhaust pipe 66B is It is supported by the laterally facing connector 78.

  Therefore, the rear side exhaust pipe 66B is supported at the front side by the connecting member 44, at the rear side by the horizontally-oriented connecting member 78, and stably supported at two front and rear separated places.

〔Workbench〕
As shown in FIGS. 1 and 2, a work table 89 is provided between the threshing device 4 and the grain tank 5 in a state of being located above the exhaust pipe 66. The work table 89 is directed along the threshing device 4 in the longitudinal direction of the machine, and corresponds to a position corresponding to the front end of the threshing device 4, specifically, a position slightly behind the front end of the threshing device 4 And extends to the rear end of the threshing device 4.

  As shown in FIGS. 2 and 6, the work table 89 is provided on the side opposite to the side on which the rocking fulcrum point of the top plate 15 in the threshing device 4 is located, that is, on the right side of the threshing device 4. Extends in the longitudinal direction of the vehicle along the side wall 14 of the vehicle. Further, as shown in FIG. 7, the work bench 89 and the upper surface 24 a of the upper frame body 24 are set at the same or substantially the same height, and the left end of the work bench 89 is the upper surface of the upper frame body 24 It is mounted and supported by 24a.

  As shown in FIG. 2, the work bench 89 is located on the front side work bench 89 A as a front side stand portion located on the front side of the grain lifting apparatus 35 and on the rear side of the grain lifting machine 35. And a rear side work platform 89B as a rear side platform part. As shown in FIGS. 7 and 8, the front side work bench 89A is connected and fixed by fastening bolts in a state where the left side is placed on the upper surface 24a of the upper frame body 24, and the right side is on the front side. It is connected by a bolt in a state where it is placed on the upper connecting portion 90 integrally connected to the upper end portion of the vertical frame 58.

  That is, a portion of the work table 89 located on the grain tank 5 side is supported by the front side vertical frame 58, and a portion of the front side vertical frame 58 located on the grain tank 5 side of the work table 89. Functions as a frame body F supporting the

The rear side work stand 89B is connected and fixed by fastening the bolts in a state where the left side is placed on the upper surface 24a of the upper frame body 24, and the right side is supported by the machine body frame 48 at two places separated in the front and rear direction. There is.
That is, as shown in FIGS. 4 and 9, the right side portion of the rear side work bench 89B is fixedly connected to the side wall 14 of the threshing apparatus 4 at a location on the front side slightly ahead of the intermediate position in the longitudinal direction of the machine body. A support member 91 is provided extending upward in an oblique posture positioned on the grain tank 5 side, and the upper portion of the support member 91 is connected and fixed to the right side portion of the rear side work bench 89B.

  The support member 91 includes a vertically extending portion 91A extending in the vertical direction, a lower connecting portion 91B integrally connected to the lower end portion of the vertically extending portion 91A and extending in the front-rear direction, and an integrally connected upper end portion of the vertically extending portion 91A. And an upper connecting portion 91C in the horizontal attitude. The lower connecting portion 91B of the support member 91 is integrally connected and fixed to a flange connecting portion 92 which connects the upper side portion and the lower side portion of the side wall 14 of the threshing apparatus 4. The upper connecting portion 91C of the support member 91 is connected to the lower surface side of the right side portion of the rear side work stand 89B with a bolt.

  That is, a portion of the work table 89 located on the grain tank 5 side of the work table 89 is supported by the support member 91, and the frame body F supports the part where the support member 91 is located on the grain tank 5 side of the work table 89. Acts as.

  Further, as shown in FIGS. 4 and 10, as a connecting member for connecting the rear side vertical frame 49 and the side wall 14 of the threshing device 4 at a portion corresponding to the rear side of the right side of the rear side work stand 89B. A vertically oriented vertical support 93 in the form of a square tube is fixedly extended upward from the left and right middle portions of the horizontal connection body 83. A plate-like upper connecting body 94 in a horizontal posture is integrally connected to the upper end portion of the vertical support 93, and the upper connecting body 94 is connected to the lower surface side of the right side portion of the rear side work stand 89B by bolts.

  That is, a frame supporting the portion of the work table 89 located on the grain tank 5 side of the work table 89 by the horizontally-oriented connection body 83 and supporting the part of the horizontally-oriented connection body 83 located on the grain tank 5 side of the work table 89 It functions as a body F.

  As shown in FIG. 10, a plurality of non-slip protrusions 95 as anti-slip means are formed on the upper surface of the work table 89, and when the operator rests on the work table 89 and performs maintenance work etc. Make it difficult for your feet to slip.

  As shown in FIGS. 7 to 10, a reinforcement member 96 having an L-shaped cross section extending along the longitudinal direction is integrally connected and fixed to a location near the grain tank 5 side on the lower surface side of the work bench 89, The reinforcing member 96 reinforces the work table 89 to increase its support strength.

  As shown in FIGS. 9 and 10, a cover member 97 that covers the outside of the grain tank 5 side of the exhaust pipe 66 is provided. The cover member 97 is supported by the work table 89. Moreover, the lower side part 97a of the cover member 97 is formed in the inclined surface located in the threshing apparatus 4 side toward a lower end side.

  If it adds explanation, it will consist of the board which was bent in the shape of a letter L in front view of the machine so as to cover the right outer part and the lower outer part of the machine at the part corresponding to the rear side exhaust pipe 66B in the exhaust pipe 66. A cover member 97 is provided. The cover member 97 is formed of a perforated plate (punching metal) formed by punching and forming a large number of transmission holes in a plate material. By using the porous plate in this manner, water is dropped and discharged, so that water can be prevented from staying on the top of the cover member 97. Further, since the lower side portion 97a is formed in the inclined surface, the dust is guided downward, so that the dust can be prevented from being deposited on the upper portion of the cover member 97.

  As shown in FIG. 9, the upper end side of the cover member 97 is connected and fixed to a reinforcing member 96 provided on the lower surface side of the work table 89 by bolt fastening. Further, the lower end side of the cover member 97 is connected and fixed to a bracket 98 integrally connected to the lower portion of the rear side exhaust pipe 66B by bolt fastening.

  As described above, the grain tank 5 is supported so as to be changeable in posture, but the exhaust pipe 66 is provided between the threshing device 4 and the grain tank 5 when being switched to the working posture. Therefore, there is little risk of touching by workers. However, when the grain tank 5 is switched to the maintenance posture, the upper side of the exhaust pipe 66 is covered by the work table 89, but the outer right side portion and the lower side portion of the exhaust pipe 66 are exposed outward. In the state, the cover member 97 covers the outer right side portion and the lower side portion of the exhaust pipe 66 on the right side of the machine body.

Second Embodiment
Hereinafter, a second embodiment of the ordinary combine according to the present invention will be described.
In this embodiment, the shape of the unloader 6, the shapes of the work table 89 and the exhaust pipe 66, the support structure, the cover structure, and the like are different from those of the first embodiment, but the other configuration is the same as the first embodiment. is there. Therefore, the configuration different from the first embodiment will be described below, and the description of the same configuration as the first embodiment will be omitted.

[Unloader]
The unloader 6 will be described.
As shown in FIGS. 11 and 12, the unloader 6 is a screw type conveying device having a well-known structure, and upwards the grain fed laterally outward by the bottom screw 46 provided at the lower part of the grain tank 5. It includes a vertical screw conveyor 6a for conveying toward and a horizontal screw conveyor 6b for conveying grains in the horizontal direction from the conveyance end of the vertical screw conveyor 6a. Further, a connection case 6c for connecting the lower portion of the vertical screw conveyor 6a to the threshing device 4, the vertical screw conveyor 6a and the horizontal screw conveyor 6b communicate with each other in a grain transportable manner And a connecting portion 6d connected so as to be rotatable relative to the periphery. The unloader 6 can transport the grain and then discharge the grain to the outside through the discharge port 6e formed at the front end of the horizontal screw conveyor 6b.

  After the power from the engine 7 is transmitted to the bottom screw 46 via the transmission mechanism 47 on the front side of the machine body, the power is transmitted to the vertical screw conveyor 6a and the horizontal screw conveyor 6b via a bevel gear mechanism (not shown) It is rotationally driven and can transport the grain.

  The unloader 6 is configured such that the entire unloader 6 can freely turn by rotating the vertical screw conveyor 6 a around the vertical axis Y by driving the turning motor M. In addition, the horizontal screw conveyor 6b is configured to be able to swing and raise and lower around the horizontal axis P1 by driving of the lifting cylinder CY.

  Further, as shown in FIGS. 14 and 15, the vertical screw conveyor 6a comprises a first support column 114 erected from the body frame 48 at the left side and a second support column 115 erected from the body frame 48 at the rear side. The upper and lower intermediate positions are rotatably held by the connected rotation holding portion 116. The lower end portion of the vertical screw conveyor 6a is rotatably supported by the connection case 6c.

〔Exhaust pipe〕
In this embodiment, the exhaust pipe 66 is provided such that the exhaust port 68 is at a higher position than the supply port 69 to which exhaust gas from the engine 7 is supplied, and the exhaust pipe 66 is provided with the threshing device 4 The same point as that of the first embodiment is provided to extend upward through between the grain tank 5, but in this embodiment, the exhaust pipe 66 has the rear end facing upward and the grain tank 5. It is different in that it is curved to the side.

  As shown in FIGS. 12-14, the rear end of the grain tank 5 is located forward of the rear end of the threshing apparatus 4 and is a rear portion of a pipeline extending in the front-rear direction of the exhaust pipe 66, Specifically, the rear side portion of the rear side exhaust pipe 66B, which is formed of one pipe member in the exhaust pipe 66, is formed to be curved upward obliquely upward, which is located on the rear side in the side view. In addition, the grain tank 5 is disposed so that the rear portion 123 of the exhaust pipe 66 behind the curved portion 122 passes through the space behind the grain tank 5 and the side of the grain processing device 4 on the grain tank 5 side. It is shaped to be curved to the side, that is, to the left.

  As shown in FIG. 15, the rear end exhaust port 68 located at the highest position of the exhaust pipe 66 is provided below the connection portion 6 d of the unloader 6, and the unloader 6 has a longitudinal axis Y The exhaust pipe 66 and the unloader 6 do not interfere with each other even when turning around.

Below the rear end portion of the exhaust pipe 66, a fuel tank 65 is provided.
To add the description, as shown in FIG. 15, the bottom surface 5B of the grain tank 5 is formed in a substantially V-shaped inclined posture in the front-rear direction so that the portion where the bottom screw 46 is positioned is located at the bottom. ing. The bottom screw 46 is provided at a position deviated laterally outward (rightward) than the central position in the lateral width direction in the rear view of the machine body.

  In the lower left side of the grain tank 5, a large open space is formed, and a fuel tank 65 is provided using this space. The fuel tank 65 is formed with an inclined surface 65a along the upper portion in the front-rear direction and in close proximity to the inclined bottom surface 5B of the grain tank 5, and extends to a high position in the space. In this manner, the space is effectively used to increase the size of the fuel tank 65 to increase the storage amount.

  A fueling port 65c is formed in the upper surface 65b of the fuel tank 65, and the fueling operation is performed from the rear side of the machine through the fueling port 65c. When the refueling operation is performed, the exhaust pipe 66 is positioned above the worker, but as described above, the exhaust pipe 66 is curved so as to be positioned upward and to the left toward the rear, The operator can perform the operation without worrying about the exhaust of the engine 7.

Next, the support structure of the exhaust pipe 66 will be described.
In this embodiment, the front side exhaust pipe 66A of the exhaust pipe 66 is supported by the front side vertical frame 58 in the same manner as the first embodiment, but the connecting structure is slightly different. That is, as shown in FIGS. 16, 17 and 19, the connecting member 100 connected to the bracket 77 fixed to the front side straight portion 70 of the front side exhaust pipe 66A is diagonally forward as in the first embodiment. Rather than extending upward, it is formed in an L shape in plan view, and is provided to extend from the front longitudinal frame 58 in the longitudinal direction of the vehicle.

  Also, as in the first embodiment, the horizontally facing connector 78 for connecting the front longitudinal frame 58 and the threshing device 4 and the front exhaust pipe 66A are bolted together, but in this embodiment, the front The difference is that the part-side exhaust pipe 66A is located below the lateral connection body 78 and is bolted to a bracket 117 extending downward from the lateral connection body 78.

  As shown in FIGS. 15, 17 and 19, in the rear side exhaust pipe 66B, a bracket 118 integrally connected to the front side by welding is bolted to the connecting member 44. Further, as shown in FIGS. 15, 18 and 20, the first support column 114 and the reinforcing member 14a in the side wall 14 of the threshing apparatus 4 are connected by the horizontal connection member 120 and welded to the rear portion of the rear exhaust pipe 66B. A bracket 119 integrally connected at a point of time is bolted to a fixed connector 121 fixed to the transverse connector 120.

〔Workbench〕
In this embodiment, a notch 101 through which the exhaust pipe 66 passes is formed at the rear end of the work table 89.
That is, as shown in FIG. 14, as in the first embodiment, the workbench 89 is divided into the front side workbench 89A and the rear side workbench 89B with the grain lifting device 35 in the front and rear direction. However, at the rear end portion of the rear side work stand 89B, the notch 101 is formed such that the end edge on the grain tank 5 side (right side) is inclined toward the right side toward the rear side.

  By forming the notch 101 in this manner, the rear end portion of the exhaust pipe 66 is allowed to curve upward and toward the grain tank 5 without interference. Further, the rearmost end 89B1 of the rear side work stand 89B is shaped to have a predetermined width in the left-right direction. With this configuration, the operator can board the rear end 89B1 while avoiding interference with the exhaust pipe 66, and can perform work in a wide range in the front-rear direction. In this embodiment, the front side of the work table 89 is formed slightly wider than the first embodiment.

Further, in this embodiment, the heat insulating portion 102 is provided between the work table 89 and the exhaust pipe 66.
Specifically, as shown in FIG. 21, a shielding plate 104 for forming a thermal insulation air layer 103 shielded on the lower surface side of the work table 89 is integrally connected by welding. By forming the heat insulating air layer 103 between the shielding plate 104 and the workbench 89, the heat from the exhaust pipe 66 is prevented from being directly transmitted to the workbench 89.

  The method of supporting the work table 89 is substantially the same as in the first embodiment, but the shape of the support member 91 as the frame body F supporting the grain tank 5 side of the rear side work table 89B is different. That is, although the support member 91 in the first embodiment has a shape in which the vertically extending portion 91A extending in the vertical direction is bent in a substantially L shape in the front and rear direction, in this embodiment, as shown in FIG. A member 91 is provided in a state of extending linearly and obliquely upward from the side wall 14 of the threshing apparatus 4 toward the grain tank 5 side.

  Further, in this embodiment, a pair of front and rear receiving members 105 for receiving and supporting the rear end edge of the front side work stand 89A and the front end edge of the rear side work stand 89B from the lower side is provided. The receiving member 105 is formed in a side view L-shape as shown in FIGS. 16 and 17 and is connected to a pair of front and rear connecting members 44 connecting the grain lifting device 35 and the threshing device 4, The work table 89, that is, the front side work table 89A and the rear side work table 89B are received and supported by the horizontal surface portion 105a located at the lower part.

[Cover structure of exhaust pipe 66]
Similar to the cover member 97 of the first embodiment, a side cover member 106 is provided to cover the outside of the exhaust pipe 66 on the grain tank 5 side. The side cover member 106 includes a lateral side 106 a that covers the lateral side of the exhaust pipe 66 on the grain tank 5 side, and a bottom 106 b that covers the lower side of the exhaust pipe 66.

  As shown in FIGS. 13, 16 and 21, the side cover member 106 is not a perforated plate, but is bent into a substantially L shape in a front-rear direction view to form a vertical surface portion and a horizontal surface portion. The horizontal side portion 106a covers the lateral side of the exhaust pipe 66 on the grain tank 5 side by the vertical surface portion, and the bottom portion 106b covers the lower side of the exhaust pipe 66 by the lower horizontal surface portion.

  The side cover member 106 is divided into a front side cover portion 106A and a rear side cover portion 106B back and forth with the support member 91 in between, and the front side cover portion 106A is a front side vertical frame 58. The rear cover portion 106B extends rearward to a front side location where the exhaust pipe 66 curves upward and to the left.

  As shown in FIGS. 13, 16 and 21, the front cover portion 106 </ b> A and the rear cover portion 106 </ b> B each have a plurality of reinforcement members 96 having L-shaped cross sections whose upper end portions are connected to the lower surface side of the work table 89. Are bolted together. Further, in the front side cover portion 106A, the front end side portion at the corner portion 106c between the lateral side portion 106a and the bottom portion 106b is bolted to the bracket 107 fixed to the front side longitudinal frame 58, and at the corner portion 106c. The rear end portion is bolted to a bracket 108 fixed to the support member 91. In the rear side cover portion 106 </ b> B, the front end side portion of the corner portion 106 c is bolted to a bracket 108 fixed to the support member 91.

  In this embodiment, the exhaust pipe 66 is disposed in a state of being separated from the work stand 89, as compared with the configuration of the first embodiment. As shown in FIG. 21, the vertical distance L1 from the work table 89 to the exhaust pipe 66 is set larger than the vertical distance L2 from the exhaust pipe 66 to the bottom portion 106b of the side cover member 106.

As shown in FIG. 14, a curved portion 71 as a bent portion is formed in a state of being located in front of the grain tank 5.
A partition member 109 is provided between the curved portion 71 of the exhaust pipe 66 and the grain tank 5. As shown in FIGS. 16 and 19, the partition member 109 is formed of a plate having an L shape in plan view, and extends in the left-right direction along the front wall of the grain tank 5, and the side wall 14 of the threshing device 4. And a front-to-rear direction partition portion 109B extending in the front-rear direction. The horizontally oriented partition portion 109A is supported by the panel support column 110, and the front-rear direction partition unit 109B is supported by the front side vertical frame 58 as a storage section support column.

  If it adds description, the state where it is erected from the body frame 48 in the position corresponding to the rear end side place of the side panel 111 (an example of operation panel) of the operation part 3 in front of the grain tank 5 in plan view. The panel support 110 is provided. A side panel 111 is connected to the top of the panel support 110.

  As shown in FIG. 16, the horizontal partition 109A of the partition member 109 is bolted to the bracket 112 fixed at the right end to the panel support 110, and the left end extends from the front vertical frame 58. It is bolted to the bracket 113.

  The front-to-rear direction partition portion 109B of the partition member 109 is bolted to the connecting member 100 whose lower portion is connected to the front side vertical frame 58, and the reinforcing member 96 whose upper portion is connected to the lower surface side of the work table 89 It is bolted.

  According to the above configuration, the space in which the grain tank 5 is switched to the maintenance posture and opened is partitioned not only between the straight pipe portion of the exhaust pipe 66 but also between the curved portion 71 and the maintenance work. It is easy to do.

[Another embodiment]
(1) In the above embodiment, the work table 89 extends from a position slightly behind the front end of the threshing device 4 to the rear end of the threshing device 4 as a position corresponding to the front end of the threshing device 4 Although what was provided was shown, it may replace with this structure and may be the structure etc. which are described in following (1-1)-(1-4).
(1-1) A work table 89 is provided so as to extend from the same longitudinal position as the front end of the threshing device 4 as a position corresponding to the front end of the threshing device 4 to the rear end of the threshing device 4.
(1-2) The work table 89 extends from the position closer to the front of the machine than the front end of the threshing device 4 as a position corresponding to the front end of the threshing device 4 to the rear end of the threshing device 4 Thing.
(1-3) At a position where the work table 89 is closer to the front side than the rear end of the threshing apparatus 4 from the position corresponding to the front end of the threshing apparatus 4, for example, at the rear end of the grain storage 5 It is extended to the corresponding position.
(1-4) The work table 89 extends from the position corresponding to the front end of the threshing apparatus 4 to a position closer to the front than the rear end of the threshing apparatus 4 and the rear end of the grain storage 5 What will be set up.

(2) In the above embodiment, the portion of the work table 89 located on the grain storage portion 5 side is supported by using the frame body F for supporting other members. You may make it provide the frame for exclusive use for supporting the part located in the particle | grain storage part 5 side.

(3) In the above embodiment, the portion on the threshing device side of the work table 89 is supported by the threshing device 4, but a dedicated frame for supporting the portion on the threshing device side of the work table 89 is provided You may

(4) In the above embodiment, the exhaust pipe 66 is provided on the lower side of the work table 89. However, the exhaust pipe 66 may be provided at another location separated from the work table 89, located on the lower side of the machine body. .

(5) In the above embodiment, although a plurality of projections 95 are formed on the upper surface of the work table 89 as anti-slip means, the anti-slip means is not limited to the projections, and the surface is roughened to slide The present invention can be implemented in various forms, such as a configuration that is difficult, and a configuration in which a large number of band plates are spaced apart and integrally connected between frame members.

(6) In the above embodiment, the work bench 89 is divided into the front side carriage portion 89A and the rear side carriage portion 89B in the front and back direction, but instead, it is integrated along the front and back direction It may be formed. In this case, in the case where the grain feeding device 35 is formed to be long vertically, the work table 89 is laterally displaced from the grain feeding device 35 so as not to interfere with the grain feeding device 35. Need to deploy.

(7) In the above embodiment, the cover member 97 for covering the outside of the grain tank 5 side of the exhaust pipe 66 is constituted by a plate bent in a substantially L shape in a front view of the airframe, Instead of this, as shown in FIG. 11, a cover member 97 formed in a substantially arc shape in a front view of the machine body may be used so as to cover the outside of the exhaust pipe 66 on the grain tank 5 side. The cover member 97 is connected and supported by a bracket 99 provided on the outer peripheral portion of the exhaust pipe 66.

(8) In the second embodiment, as the heat insulating portion 102 provided between the workbench 89 and the exhaust pipe 66, a shield for forming the air layer 103 for heat insulation shielded on the lower surface side of the workbench 89 The plate 104 is configured to be integrally connected by welding, but instead of such a configuration, a heat insulating material may be provided in a fixed position on the lower surface side of the work bench as a heat insulating portion. For example, the heat insulating material may be fixed by connecting with a connecting member or by screw connection. Alternatively, a heat insulating material may be inserted into the air layer 103 in the above embodiment. In the second embodiment, the notch 101 through which the exhaust pipe 66 passes is formed at the rear end of the work table 89, but instead of the notch, an opening through which the exhaust pipe 66 passes may be formed.

(9) In the above-mentioned embodiment, although what applied the present invention to a common type combine was shown, the present invention is applicable not only to a common type combine but also to a self removal type combine.

  The present invention is applicable to a combine comprising a threshing device for threshing a cropped crop and a grain storage portion for storing grains obtained by the threshing process.

DESCRIPTION OF SYMBOLS 4 threshing apparatus 5 grain storage part 5A upper inlet 7 engine 14 side wall 15 top plate 18 processing room 24a top plate support surface 35 grain lifting device 48 airframe frame 49 rear support post 58 support 66 exhaust pipe 83 connecting member 89 work stand 89A Front side base portion 89B Rear side base portion 91 Support member 95 Non-slip means 97 Cover member 101 Notch 102 Heat insulation portion 106 Cover member 106a Horizontal side 106b Bottom portion F Frame body IH Position holding mechanism L1, L2 Spacing X1 Swing axis Y vertical axis core

Claims (1)

A threshing device for threshing the cropped crop, and a grain storage portion for storing grains obtained by the threshing treatment are provided side by side along the width direction of the fuselage;
A combine is provided with a workbench between the threshing device and the grain reservoir.

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