JP2018117600A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve efficiency of a space on a machine body frame.SOLUTION: A combine harvester comprises: a thresher for threshing grain culm, disposed on one upper transverse side of a machine body frame installed with an engine; a grain tank for reserving the threshed grains at the other upper transverse side of the machine body frame; and an exhaust gas purification device for purifying exhaust gas of the engine, disposed in a position near the grain tank above the machine body frame. In the combine harvester, a recess having at least three surfaces and a shape corresponding to the outer shape of the exhaust gas purification device is formed in a surface at an opposite side to the thresher of the grain tank, and part of the exhaust gas purification device is intruded into a space in the recess.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a combine.

  In a conventional combine, a threshing device is provided on the upper left side of the fuselage frame, a grain tank is provided on the upper right side of the fuselage frame, and a diesel engine is provided, for example, in front of the grain tank on the fuselage frame. In addition, some of such combines are provided with an exhaust gas purifying device for purifying the exhaust gas of the engine on the body frame in order to adapt to exhaust gas regulations that have been strengthened in recent years.

  Moreover, in order to arrange | position an exhaust-gas purification apparatus in this combine, the technique which forms the surface facing a diesel engine of a Glen tank in a concave shape as a whole, and secures a space is known (for example, refer patent document 1). ).

JP 2006-1558591 A

  However, in the conventional combine as described above, since the surface of the grain tank is formed in a concave shape as a whole, the capacity of the grain tank is greatly reduced. As described above, the conventional combine as described above improves the efficiency of the space on the fuselage frame, such as the capacity of the Glen tank must be sacrificed in order to secure the space for arranging the exhaust gas purifying device. There was room for.

  This invention is made | formed in view of the above, Comprising: It aims at providing the combine which can aim at the efficiency improvement of the space on a body frame.

In order to solve the above-described problems and achieve the object, the present invention takes the following technical means.
According to the first aspect of the present invention, a threshing device for threshing cereals is provided on the upper left and right sides of the machine frame on which the engine is installed, and the threshed grains are stored on the upper left and right sides of the machine frame. In a combine provided with a Glen tank and provided with an exhaust gas purification device for purifying exhaust gas of the engine at a position close to the Glen tank above the fuselage frame, on the side of the Glen tank facing the threshing device A concave portion having a shape corresponding to the outer shape of the exhaust gas purification device is formed on at least three surfaces, and a part of the exhaust gas purification device is inserted into a space in the concave portion. To combine.

  According to a second aspect of the present invention, the surface of the grain tank in which the concave portion is formed is located above the part of the exhaust gas purifying device that has entered the space in the concave portion and is located above the grain tank. The combine according to claim 1, wherein the combine is provided with an inclined surface inclined inward and a vertical surface that is located laterally and hangs down from a lower end portion of the inclined surface.

  The invention according to claim 3 is the combine according to claim 2 in which the inclination angle of the inclined surface inclined downward inward of the Glen tank is set to a steep inclination angle equal to or greater than the repose angle of the grain.

  According to a fourth aspect of the present invention, the surface of the grain tank in which the concave portion is formed is positioned below the part of the exhaust gas purification device that has entered the space in the concave portion and is located outside the grain tank. The combine according to any one of claims 1 to 3, wherein an inclined surface inclined downward in the direction is provided.

  According to a fifth aspect of the present invention, the exhaust gas purification device purifies the DPF that removes particulate matter in the exhaust gas and ammonia produced from the urea aqueous solution by reacting with nitrogen oxides in the exhaust gas. The combine according to any one of claims 1 to 4, further comprising a urea SCR catalyst to be treated, wherein the DPF and the urea SCR catalyst are arranged side by side so that the DPF is separated from the grain tank. To do.

  The invention according to claim 6 conveys the grain stored in the grain tank to the grain discharge auger provided on the rear side of the grain tank at the bottom of the grain tank on the body frame. The conveyance spiral is provided in the front-rear direction, and the concave portion protrudes inward of the grain tank to a position facing above the conveyance spiral or to a position exceeding this position. It is set as the combine described in any one item.

  According to invention of Claim 1, the recessed part (space) formed in the surface by the side of the grain tank facing a threshing apparatus can be allocated to the space which arrange | positions an exhaust-gas purification apparatus. Thereby, the space which arrange | positions an exhaust-gas purification apparatus can be ensured. Further, the recess formed in the Glen tank is formed corresponding to the outer shape of a part of the exhaust gas purification device on at least three surfaces, and one surface is not formed in a concave shape as a whole. For this reason, it is possible to form the recess while suppressing a decrease in the capacity of the Glen tank. Thereby, the capacity | capacitance of a Glen tank is securable. As a result, the space on the machine frame can be made more efficient, for example, the space for arranging the exhaust gas purification device and the capacity of the glen tank can be secured at the same time.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the flow of the grains stored in the Glen tank is improved by the inclined surface inclined downward inward of the Glen tank. Can do. Further, the vertical plane can increase the vertical rigidity of the Glen tank. Thereby, for example, the deformation of the concave portion due to a load such as the weight of the grain stored in the Glen tank can be prevented, and the clearance from the exhaust gas purification device disposed in the concave portion even when the grain is loaded. Can keep.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, the grain surely flows down on the inclined surface inclined downward inward of the Glen tank. Thereby, discharge | emission of the grain stored in the Glen tank can be smoothed.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the inner surface of the Glen tank is inclined by the inclined surface that is inclined downward toward the outside of the Glen tank. It is possible to suppress the accumulation of sawdust and dust.

  According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, the exhaust gas of the engine can be effectively purified. In addition, since the DPF is disposed away from the grain tank, soot and dust are less likely to accumulate at a position close to the DPF that is at a high temperature.

  According to the invention described in claim 6, in addition to the effects of the invention described in any one of claims 1 to 5, the load such as the weight of the grain stored in the glen tank is a conveyance helix. It can suppress that it takes. That is, it is possible to reduce the load on the transport spiral. In addition, since the load on the transport spiral is reduced, it is possible to reduce slippage and wear of the belt that drives the transport spiral. Moreover, generation | occurrence | production of the deflation etc. which a grain rubs and a rice husk peels can be suppressed by reducing an overload.

It is a right view of the combine which concerns on embodiment. It is a left view of the combine which concerns on embodiment. It is an explanatory left side view showing the arrangement of the engine and the exhaust gas purification device. It is a top view for description which shows arrangement | positioning of an engine and an exhaust-gas purification apparatus. It is an explanatory front view which shows arrangement | positioning of an exhaust-gas purification apparatus. It is a front view of a Glen tank. It is a rear view of a Glen tank. It is a left view of a Glen tank. It is a right view of a Glen tank. It is a top view of a Glen tank. It is a front view of a handling cylinder input gear case. It is the A section enlarged view in FIG. It is a left view of a barrel input gear case. It is the B section enlarged view in FIG.

  An embodiment of a combine according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment, In the range which does not deviate from the main point of this invention, it can implement in various deformation | transformation. Furthermore, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same, that is, so-called equivalent ranges.

  1 and 2 are left and right side views of the combine 1 according to the embodiment. In the following description, the front-rear direction, the left-right direction, and the up-down direction in the normal usage mode of the combine 1 will be described as the respective front-rear direction, left-right direction, and up-down direction in each part.

  Among these, the “front” direction is the traveling direction of the combine 1 during the cutting operation, the “left” direction is the left-hand direction toward the front, and the “lower” direction is the direction in which gravity acts. In addition, these directions are defined for convenience in order to make the explanation easy to understand, and the present invention is not limited by these directions. Hereinafter, the combine 1 may be referred to as “airframe”.

<Overall configuration of combine 1>
First, the overall configuration of the combine 1 will be briefly described. As shown in FIGS. 1 and 2, the combine 1 includes a body frame 2, a traveling device 3 provided below the body frame 2, and various operations provided above the body frame 2 and in front of the body frame 2. The apparatus includes a control unit (hereinafter referred to as “cabin”) 7, which will be described later, provided on the upper front side of the body frame 2. The cabin 7 is provided with various operation levers and instruments.

  The traveling device 3 includes a pair of left and right crawler belts 3a that circulates when power is transmitted from the engine 11 installed on the body frame 2. The traveling device 3 causes the aircraft to travel as the crawler belt 3a goes around. The crawler belt 3a is formed endlessly by an elastic body such as rubber. The traveling device 3 includes drive wheels 3b that rotate the crawler belt 3a and tension wheels 3c that apply tension to the crawler belt 3a in the longitudinal direction of the machine body.

  For example, the working device is provided on the left side of the upper part of the body frame 2, the harvesting device 4 provided in front of the body frame 2, the grain feeder 5 provided on the left side of the cabin 7 on the body frame 2. A threshing device 6, a grain tank 8 provided on the upper right side of the machine body frame 2, and a grain discharge auger (vertical auger 9 a and horizontal auger 9 b) disposed above the threshing device 6 and the grain tank 8 are provided. In the working device, the cereals harvested by the reaping device 4 are transported toward the threshing device 6 by the cereal transporting device 5, and the grains threshed and selected by the threshing device 6 are stored in the Glen tank 8. The stored grain is discharged to the outside of the machine body by a grain discharge auger (vertical auger 9a and horizontal auger 9b). The Glen tank 8 is configured to be rotatable from a work position on the machine body frame 2 to a maintenance position on the outer side of the machine frame 2 around a vertical axis provided on the rear side of the Glen tank 8.

  As described above, the cabin 7 provided on the upper front side of the body frame 2 functions as a control unit. The cabin 7 is provided with a pilot seat (not shown), various control levers, instruments and an operation panel, and a monitor capable of displaying various information.

  The reaping device 4 includes a weed stalk 4a for weeding the cereals in the field, a pulling device 4b for causing the weed cereals, and a cutting blade for cutting the roots of the caused cereals. In the reaping device 4, the cereals to be planted in the field are weeded with the weed stalk 4a, the sown cereals are caused by the pulling device 4b, and the caused cereals are harvested by the cutting blade. In addition, the harvested corn straw is conveyed toward the threshing apparatus 6 by the corn flour conveying apparatus 5.

  In the threshing device 6, the grains selected by the selection unit after threshing are fed into the glen tank 8 by the cerealing device. In the grain tank 8, the stored grain is fed into a vertical auger 9a which is a grain discharge auger provided behind the grain tank 8 (back of the machine body frame 2). In the vertical auger 9a, the fed grain is fed into the horizontal auger 9b which is a grain discharge auger. In the grain discharge auger 9b, the fed grain is discharged from a discharge tube 9c provided at the tip of the horizontal auger 9b.

  As shown in FIG. 1, an engine room 10 is provided below the cabin 7 on the body frame 2. The engine room 10 houses a radiator for cooling the engine 11 in addition to an engine (diesel engine) 11 as a power source.

<Engine 11 and exhaust gas purification device 20>
Next, the exhaust gas purification device 20 will be described with reference to FIGS. FIG. 3 is a left side view for explanation showing the arrangement of the engine 11 and the exhaust gas purification device 20. FIG. 4 is a plan view for explaining the arrangement of the engine 11 and the exhaust gas purification device 20. FIG. 5 is an explanatory front view showing the arrangement of the exhaust gas purifying device 20.

  Below, the arrangement | positioning of the engine 11 is demonstrated first, and then the structure and arrangement | positioning of the exhaust gas purification apparatus 20 are demonstrated. The engine 11 is a diesel engine and is accommodated in the engine room 10 (see FIG. 1) provided in front of the Glen tank 8 as described above. For example, as shown in FIG. 4, the engine 11 is installed on the right side of the body frame 2 and is connected to an exhaust gas purification device 20 that purifies the exhaust gas of the engine 11 provided on the body frame 2.

  As shown in FIGS. 3 and 4, the exhaust gas purification device 20 is connected to an exhaust pipe 112 connected to an exhaust manifold 111 of the engine 11. The exhaust gas purification device 20 is disposed on a support frame 12 provided on the body frame 2. The exhaust gas purification device 20 is preferably disposed above the engine 11 and behind the engine 11. By disposing the exhaust gas purification device 20 above the engine 11 and behind the engine 11, the exhaust gas purification device 20 is less susceptible to vibrations from vibration sources such as the engine 11 and the traveling device 3.

  The exhaust gas purification device 20 performs purification by selective catalytic reduction using a DPF (Diesel Particulate Filter) 21 that removes particulate matter in the exhaust gas and urea water, that is, nitrogen in the exhaust gas after passing through the DPF 21. A urea SCR catalyst 22 which reacts ammonia generated by hydrolysis of urea water with oxide and converts it into harmless nitrogen is provided. Both the DPF 21 and the urea SCR catalyst 22 are built in a cylindrical case. In addition, the code | symbol in a figure is provided to each of these cases.

  The DPF 21 supports a catalyst (Pt) on a honeycomb carrier, oxidizes SOF and NOx components, and collects particulate matter by filtration. For example, the DPF 21 includes a honeycomb carrier and a plurality of partition walls. It is formed of a honeycomb cell structure having a plurality of through-holes having a square cross section and an outer wall surrounding the cell structure.

  The exhaust gas purification device 20 has a function of a DOC (Diesel Oxidation Catalyst) that efficiently oxidizes nitric oxide in the DPF 21, and the urea SCR catalyst 22 performs selective catalytic reduction using ammonia generated from urea water. It has a function.

In the DPF 21, the exhaust gas purification device 20 converts nitrogen monoxide in the exhaust gas into nitrogen dioxide, and injects urea water into the nitrogen dioxide in a pipe connecting the outlet of the DPF 21 and the inlet of the urea SCR catalyst 22. Nitrogen dioxide is converted into water and nitrogen gas to remove nitrogen oxide (NO _x ) in the exhaust gas. The purified exhaust gas is discharged to the outside through the exhaust pipe 221.

  Here, other devices provided as peripheral devices of the exhaust gas purification device 20 on the machine body frame 2 will be briefly described. On the machine body frame 2, as peripheral devices of the exhaust gas purification device 20, for example, a dosing module (hereinafter abbreviated as “DM”), a supply module (hereinafter abbreviated as “SM”), a urea water tank 23 (see FIG. 4).

  DM is a urea water injection unit of the urea SCR catalyst 22. For example, the DM is provided close to a pipe connecting the outlet of the DPF 21 and the inlet of the urea SCR catalyst 22. SM sends urea water to the urea SCR catalyst 22. The SM is preferably provided, for example, at a position away from the body frame 2 upward. The SM is preferably provided at a position away from the DPF 21 and the urea SCR catalyst 22 as well.

  Thus, by arranging the SM away from the body frame 2, it is possible to suppress the vibration from the vibration source being transmitted to the SM, and to suppress the breakage of the SM. Further, by arranging the SM apart from the DPF 21 and the urea SCR catalyst 22, the SM is less susceptible to the heat generated from the DPF 21 and the urea SCR catalyst 22.

  The urea water tank 23 stores urea water supplied to the urea SCR catalyst 22. As shown in FIG. 4, the urea water tank 23 is preferably provided, for example, at a position away from the engine 11. In the illustrated example, the urea water tank 23 is provided on the left side which is the side on which the threshing device 6 is provided on the machine body frame 2. By disposing the urea water tank 23 away from the engine 11, the urea water tank 23 becomes less susceptible to the heat (exhaust heat) from the engine 11, and deterioration of the urea water can be suppressed.

  Further, the urea water tank 23 is preferably provided, for example, such that the urea water supply port 23 a faces the outside of the body frame 2. Since the water supply port 23a of the urea water tank 23 faces outward, the cap can be manually removed from the water supply port 23a of the urea water tank 23 to supply water from the carrying tank. That is, the water supply work to the urea water tank 23 can be facilitated.

  As shown in FIG. 5, the DPF 21 and the urea SCR catalyst 22, which are the exhaust gas purification device 20, are arranged side by side in the left-right direction with the cylindrical cases arranged in parallel. The exhaust gas purification device 20 is provided between the threshing device 6 and the glen tank 8 on the body frame 2. Specifically, in a state where the Glen tank 8 is rotated to a working position on the machine frame 2 and fixed in position, a part of the exhaust gas purifying device 20 facing the threshing device 6 of the Glen tank 8 (left side surface). ) Enters into the recess 30 formed in 8a. In this case, it is preferable that the DPF 21 is disposed so as to be separated from the Glen tank 8 and the urea SCR catalyst 22 is disposed so as to enter the recess 30 and be accommodated therein.

  According to such a configuration, the exhaust gas of the engine 11 can be effectively purified by the DPF 21 and the urea SCR catalyst 22. In addition, since the DPF 21 is disposed so as to be separated from the grain tank 8, soot and dust are unlikely to accumulate in the grain tank 8 at a position close to the DPF 21 that is at a high temperature.

<Glentank 8>
Next, the Glen tank 8 will be described in more detail with reference to FIGS. FIG. 6 is a front view of the Glen tank 8. FIG. 7 is a rear view of the Glen tank 8. FIG. 8 is a left side view of the Glen tank 8. FIG. 9 is a right side view of the Glen tank 8. FIG. 10 is a plan (top) view of the Glen tank 8.

  As described above, the Glen tank 8 has the concave portion 30 formed on the surface (left side surface) 8 a facing the threshing device 6 (see FIG. 5) provided on the upper left side of the machine body frame 2. A part of the exhaust gas purifying device 20 enters the space in the recess 30 (in other words, the space formed by the recess 30). Specifically, as shown in FIG. 6, part of the DPF 21 and all of the urea SCR catalyst 22 enter the space in the recess 30.

  As shown in FIGS. 6 to 10, the Glen tank 8 is formed in a rectangular shape. Further, the Glen tank 8 has an inclined surface inclined in the left-right direction in the front view on the bottom surface 8e. In addition, on the bottom surface 8e of the Glen tank 8, a later-described transport spiral 40 extending in the front-rear direction is provided. As described above, the recess 30 is formed in the left side surface 8 a of the Glen tank 8. As shown in FIG. 8, the recessed part 30 is formed in the surface 8aa on the front side of the center in the front-rear direction of the left side surface 8a. Moreover, as shown in FIG. 6, the recessed part 30 is following the front surface 8b (vertical surface 8ba) of the Glen tank 8. As shown in FIG.

  Further, the recess 30 has a shape corresponding to the outer shape of the exhaust gas purification device 20. The concave portion 30 has a shape suitable for accommodating the entire cylindrical case of the urea SCR catalyst 22 and accommodating a part of the cylindrical case of the DPF 21 in the left-right direction. The concave portion 30 has at least three surfaces (also “side surfaces” of the Glen tank 8) so as to be bent at two or more points in a front view. Specifically, as shown in FIG. 6, the recess 30 is preferably formed by three surfaces 30a, 30b, and 30c, and is formed in a trapezoidal shape when viewed from the front.

  Moreover, the front side of the recess 30 is open, and the rear side is closed by a surface (rear surface) 30d along the left-right direction. In FIGS. 6 and 8, the space in the recess 30 is hatched for emphasis.

  According to such a configuration, the concave portion 30 (space) formed in the left side surface 8a of the Glen tank 8 can be assigned to the space where the DPF 21 and the urea SCR catalyst 22 are arranged, which is the exhaust gas purification device 20. Thereby, the space which arrange | positions the exhaust gas purification apparatus 20 is securable. Further, the recess 30 is formed corresponding to the outer shape of the cylindrical case of the urea SCR catalyst 22 with at least three surfaces 30a, 30b, and 30c, and the entire left side surface 8a is not formed in a concave shape. It is possible to form the recess 30 (space) while suppressing the decrease in the capacity. Thereby, the capacity | capacitance of the Glen tank 8 is securable. As a result, the space on the body frame 2 can be made more efficient, for example, the space for arranging the exhaust gas purification device 20 and the capacity of the glen tank 8 can be secured at the same time.

  Of the three surfaces 30 a, 30 b, 30 c forming the recess 30, a surface (hereinafter referred to as “first surface”) 30 a located above the urea SCR catalyst 22 that has entered the recess 30 is inward of the Glen tank 8. In other words, it is formed into an inclined surface inclined downward, that is, an inclined surface inclined downward from the outside of the Glen tank 8 to the right. In addition, the inclination angle α1 of the first surface 30a, which is an inclined surface, is set to a steep inclination angle that is equal to or greater than the repose angle, which is the maximum angle that maintains stability without flow of grains (grains).

  According to such a configuration, it is possible to improve the flow of the grains stored in the Glen tank 8 by the first surface 30a which is an inclined surface inclined downward inward of the Glen tank 8. Moreover, since the inclination | tilt angle (alpha) 1 of the 1st surface 30a is set to the repose angle or more, a grain comes to flow down reliably in the 1st surface 30a. Thereby, discharge | emission of the grain stored in the Glen tank 8 can be smoothed.

  Of the three surfaces 30a, 30b, and 30c that form the concave portion 30, a surface (hereinafter referred to as a “second surface”) 30b that is located on the right side of the urea SCR catalyst 22 extends from the lower end of the first surface 30a. It is formed on a vertical surface that hangs down. The 2nd surface 30b is arrange | positioned above the conveyance spiral 40 mentioned later in the left-right direction. In addition, it is preferable that the 2nd surface 30b is arrange | positioned a little outside (right side) rather than the conveyance spiral 40 in the left-right direction.

  According to this configuration, the vertical rigidity of the Glen tank 8 can be increased by the second surface 30b which is a vertical surface. Thereby, the deformation | transformation of the recessed part 30 by load, such as the weight of the grain stored by the Glen tank 8, for example, can be prevented, and each surface 30a which forms the recessed part 30 even if a grain load is applied, The clearance between 30b and 30c and the urea SCR catalyst 22 which is a part of the exhaust gas purification device 20 that has entered the space in the recess 30 can be maintained.

  Of the three surfaces 30 a, 30 b, 30 c forming the recess 30, a surface located below the urea SCR catalyst 22 (hereinafter referred to as “third surface”) 30 c is inclined downward toward the outside of the Glen tank 8. In other words, it is formed into an inclined surface inclined downward from the inside of the Glen tank 8 to the left. Further, the grain does not flow on the third surface 30c, and the inclination angle α2 of the third surface 30c is set smaller than the inclination angle α1 of the first surface 30a also from the viewpoint of securing the capacity of the Glen tank 8. It is preferable. That is, the magnitude relationship between the two inclination angles α1 and α2 is set to “α1> α2,” and the third surface 30c is set to be more gently inclined than the first surface 30a.

  According to such a configuration, the third surface 30c, which is an inclined surface inclined downward toward the outward of the Glen tank 8, suppresses accumulation of soot and dust on the inner surface (the third surface 30c) of the Glen tank 8. Can do. When the exhaust gas purification device 20 includes the DPF 21, it is possible to suppress the accumulation of soot and dust at a position close to the DPF 21 that is at a high temperature.

  The rear surface 30d that closes the rear side of the recess 30 is formed as a vertical surface. With this configuration, the vertical rigidity of the Glen tank 8 can be increased by the rear surface 30d which is a vertical surface. Thereby, the deformation | transformation of the recessed part 30 by load, such as the weight of the grain stored in the Glen tank 8, can be prevented, for example. Further, since the rear surface 30d of the recess 30 is a vertical surface, even if a grain load is applied, the clearance between each surface 30a, 30b, 30c forming the recess 30 and the urea SCR catalyst 22 that has entered the recess 30 is reduced. Can keep.

  In the above-described embodiment, the recess 30 has the three surfaces 30a, 30b, and 30c. However, the present invention is not limited to this, and the recess 30 may have three or more surfaces, for example, four surfaces or five surfaces. Good. Even with such a configuration, a space for arranging a part of the exhaust gas purification device 20 (urea SCR catalyst 22) can be secured, and the capacity of the glen tank 8 can be secured. Thereby, the efficiency of the space on the body frame 2 can be achieved. In addition, the rigidity of the Glen tank 8 can be increased including the case where the recess 30 has three surfaces 30a, 30b, and 30c, and the recess 30 prevents the grain tank 8 from spreading laterally due to a grain load. can do.

  As shown in FIG. 6, a cleaning port 35 may be provided on the rear surface 30 d of the Glen tank 8. The cleaning port 35 is closed during normal times (when the cleaning port 35 is not used). In this way, the cleaning port 35 is provided at a position behind the exhaust gas purification device 20 (for example, the urea SCR catalyst 22), so that the glen tank 8 can be cleaned in the space after the exhaust gas purification device 20 is removed. It becomes possible. That is, a cleaning work space can be secured. Thereby, the cleaning property can be improved.

  As shown in FIG. 7 and FIG. 8, on the back surface 8c (inner surface of the back surface 8c) in the grain tank 8, one grain is placed at a position across the both surfaces 8ca and 8cb at the connecting portion between the vertical surface 8ca and the inclined surface 8cb. A moisture meter 36 for measuring the amount of moisture contained may be disposed. Note that a grain meter other than the moisture meter 36 may be arranged at a position across the vertical surface 8ca and the inclined surface 8cb.

  As shown in FIG. 8, the grain can be changed in the front-rear direction to the supply port 37 for supplying the grain threshed and selected by the threshing device 6 (see FIG. 1) from the milled cylinder into the Glen tank 8. The guide part 37a which guides a grain may be provided so that it may scatter. The guide part 37a is provided in the upper half part of the supply port 37, for example, and changes the scattering of the grain in the front-rear direction by changing the direction of the guide part 37a.

  The guide part 37a may be configured to be changeable according to the storage state of the grains in the grain tank 8. In this case, for example, the amount of grain scattering in the front-rear direction is changed based on a signal from a sensor that detects the storage state of the grain in the Glen tank 8. For example, when many grains are stored on the rear side of the Glen tank 8, the grains are scattered on the front side of the Glen tank 8. Thereby, the storage state in the front-back direction of the grain in the Glen tank 8 can be averaged.

  Further, for example, by changing the amount of grain scattered by the guide portion 37a, the grain may be scattered as far as possible on the front side of the Glen tank 8 when the field is a wet field. In the case of a wet field, the rear part of the traveling device 3 (see FIG. 1 and FIG. 2) sinks into the field and the machine body rises forward, so that the gravity center of the machine body is stabilized by storing the grain on the front side of the Glen tank 8. You can plan.

  As shown in FIG. 9, of the support members 38a and 38b for maintaining the shape of the upper part of the Glen tank 8, one of the support members 38a is a front surface 8b (vertical surface 8ba) and a back surface 8c (vertical surface) of the Glen tank 8. 8ca) and the other support member 38b may be provided so as to connect the rear surface 30d of the recess 30 and the rear surface 8c (8ca). In this case, the other support member 38b is preferably provided in the vicinity of the center of the grain tank 8 in the vertical direction. According to this configuration, the shape of the Glen tank 8 can be held more reliably. One end side of one support member 38a may be connected to an inclined surface 8bb on the front surface 8b of the glen tank 8. Moreover, the other end side of one support member 38a may be connected with the inclined surface 8ca of the upper part of the back surface 8c.

  As shown in FIG. 10, a maintenance opening 39 for maintenance may be provided on the upper surface 8 d of the Glen tank 8. The maintenance opening 39 is closed during normal times (when the maintenance opening 39 is not used).

<Conveyance spiral 40>
Next, the transport spiral 40 will be described with reference to FIGS. The conveying spiral 40 conveys the grains stored in the Glen tank 8 from the front side to the rear side in the front-rear direction of the Glen tank 8, and the takeover metal 13 (see FIG. 3 and FIG. 3) provided behind the Glen tank 8. (See FIG. 4). The takeover metal 13 sends the fed grain into a vertical auger 9a (see FIGS. 1 to 3) which is a grain discharge auger connected to the upper part of the takeover metal 13.

  As shown in FIGS. 6 to 10, the bottom surface 8 e of the Glen tank 8 has an inclined surface 8 ea inclined downward from the left side surface of the Glen tank 8 inward (rightward) of the Glen tank 8. Further, the bottom surface 8e has an inclined surface 8eb that is inclined inwardly (leftward) of the Glen tank 8 so as to face the inclined surface 8ea. The transport spiral 40 is the bottom of the Glen tank 8 on the body frame 2, that is, the lowermost part of the bottom surface 8e of the Glen tank 8, and is disposed between the tip of the inclined surface 8ea and the tip of the inclined surface 8eb. The

  The transport spiral 40 is supplied with the grains collected and discharged on the transport spiral 40 by the inclined surfaces 8ea and 8eb on the front side of the Glen tank 8, and the supplied grain is transported to the rear side of the Glen tank 8 as a spiral. Then, it is discharged from the rear discharge port 41 toward the takeover metal 13 (see FIGS. 3 and 4). Here, as described above, the concave portion 30 formed in the Glen tank 8 protrudes inward to a position facing above the transport spiral 40 or to a position exceeding this position. Specifically, the second surface 30b projects so as to be located slightly outside (rightward) of the transport spiral 40.

  According to this structure, it can suppress that load, such as the weight of the grain stored in the glen tank 8, is applied to the conveyance spiral 40. FIG. That is, the load applied to the transport spiral 40 can be reduced. In addition, since the load on the transport spiral 40 is reduced, slippage and wear of the belt that drives the transport spiral 40 can be reduced. Moreover, generation | occurrence | production of the deflation etc. which a grain rubs and a rice husk peels can be suppressed by reducing an overload.

  Further, the Glen tank 8 has a concave portion 30 formed on the front surface 8aa on the left side surface and a rear surface 8ab protruding outward (leftward), so that the front side capacity from the center in the front-rear direction is increased to the rear side. It is less than the capacity on the side. According to such a configuration, for example, by reducing the front side of the grain tank 8 from the rear side, the amount of grain stored on the front side of the grain tank 8 is reduced, and the weight of the grain on the front side of the transport spiral 40 is reduced. Such a load can be reduced. Moreover, the conveyance speed of a grain becomes quick because the load concerning the front side of the conveyance spiral 40 is reduced. As a result, the load on the transport spiral 40 is reduced, and belt slip and wear can be reduced.

  As shown in FIG. 8, a vibration device 42 is provided at the bottom of the Glen tank 8 in order to prevent the grains transported by the transport spiral 40 from stagnating in the transport path. The vibration device 42 is provided in a portion (rear end portion) having the widest width in the left-right direction on the bottom surface 8 e of the Glen tank 8. The vibration device 42 is provided on the inclined surface 8ea of the bottom surface 8e. As shown in FIG. 9, the vibration device 42 includes, for example, an inclined surface 8ea, including a rod member 42a that includes the widest portion and that is arranged in the longitudinal direction (front-rear direction) of the transport spiral 40 in the left-right direction. Vibration is generated by hitting the inner surface of 8eb.

  In addition, the vibration device 42 includes, for example, a device that generates vibration when a cam that rotates around a rotation axis together with a rotation axis of a motor strikes the inner surface of the inclined surface 8ea or the inclined surface 8eb. Note that the vibration device 42 may be provided, for example, only at the widest part of the Glen tank 8.

  According to this configuration, since the vibration device 42 is provided in the widest part of the Glen tank 8, that is, the part where the grain is most likely to stagnate, the part where the grain is most likely to stagnate vibrates and the grain is conveyed. In addition, the efficiency of grain discharge can be improved. By providing the rod member 42a and the cam of the vibration device 42 over the longitudinal direction of the transport spiral 40, the grains can be transported and discharged more efficiently.

  Further, a long plate-like reinforcing member (hereinafter referred to as “reinforcing plate”) 43 provided along the longitudinal direction (front-rear direction) of the inclined surface 8ea to reinforce the inclined surface 8ea is welded to the inclined surface 8ea of the bottom surface 8e. Etc. are provided. By providing the reinforcing plate 43, the inclined surface 8ea can enhance durability against a cam collision. For example, the reinforcing plate 43 may be integrally formed with the inclined surface 8ea by bending an inclined surface 8ea formed of an iron plate. In FIG. 8, the reinforcing plate 43 is hatched for emphasis. The vibration device 42 is provided on a surface (the inclined surface 8ea) on which the reinforcing plate 43 is provided.

  According to this configuration, when the vibration device 42 strikes the inclined surface 8ea via the reinforcing plate 43 extending in the front-rear direction, the inclined surface 8ea can be vibrated efficiently in the longitudinal direction. Thereby, the stagnation of a grain can be suppressed and the efficiency of conveyance of a grain and discharge | emission of a grain can be aimed at. Even if the vibration device 42 is attached to the inclined surface 8ea, the inclined surface 8ea is not distorted because it is reinforced by the reinforcing plate 43.

<Hand barrel input gear case 50>
Next, the barrel input gear case 50 will be described with reference to FIGS. FIG. 11 is a front view of the barrel input gear case 50. FIG. 12 is an enlarged view of part A in FIG. FIG. 13 is a left side view of the barrel input gear case 50. FIG. 14 is an enlarged view of a portion B in FIG.

  A handling cylinder for threshing the cereal meal in the threshing device 6 is pivotally supported by the handling cylinder shaft in the handling chamber. As shown in FIGS. 11 to 14, a handling cylinder input gear case 50 having a transmission mechanism is provided on one side of the handling cylinder shaft. The handling cylinder input gear case 50 receives the rotational power of the engine 11 (see FIG. 1) and rotates the handling cylinder shaft.

  As shown in FIG. 11, the handling cylinder input gear case 50 is disposed above an entrance funnel 55 that serves as an entrance for the grain candy in the handling chamber. As shown in FIGS. 13 and 14, in the case input gear case 50, the front surface of the case body 51 is closed with a lid member 52. The lid member 52 is formed with a flange portion 53 that extends outward from the outer periphery of the case body 51. A flange portion is similarly formed on the front surface of the case body 51.

  The flange portion 53 is provided with a fastening portion 54 to which a fastening member 54a such as a bolt is attached. That is, the fastening portion 54 is provided outside the outer periphery of the case main body 51 (or the lid member 52) of the barrel input gear case 50.

  Moreover, the flange part 53 is formed in the polygonal shape, and the fastening part 54 is provided in a corner | angular part. As shown in FIGS. 11 and 12, the flange portion 53 faces the entrance funnel 55 in the vertical direction. In the flange portion 53, a portion 53a with respect to the entrance funnel 55 is formed in a round shape. In other words, the flange portion 53 has a shape with no corners in the portion 53 a with respect to the entrance funnel 55.

  Thus, the internal space of the barrel input gear case 50 (the case main body 51) is formed by making the portion 53a of the flange portion 53 with respect to the inlet funnel 55 have no corners, that is, a shape that does not protrude toward the inlet funnel 55. While ensuring, the width | variety of the entrance funnel 55, ie, the width | variety (frontage) of the entrance of a handling chamber, can be ensured widely.

  Further, as shown in FIGS. 13 and 14, the portion 53a of the flange portion 53 with respect to the inlet funnel 55 is preferably formed in a round shape also on the front side. That is, the portion 53a of the flange portion 53 with respect to the entrance funnel 55 has a smooth shape with no corners from the front to the rear.

  In this way, the portion 53a of the flange portion 53 with respect to the entrance funnel 55 has a smooth shape with no corners from the front to the rear, for example, a seal rubber 56 provided on the front cover above the entrance funnel 55. Even if it hits the lid member 52 on the front surface of the barrel input gear case 50 when it is pushed into the barrel side by being pushed by the grain basket carried into the handling chamber, the wear of the seal rubber 56 can be suppressed.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Combine 2 Airframe frame 3 Traveling device 3a Crawler belt 3b Drive wheel 3c Tension wheel 4 Mowing device 4a Weeding shear 4b Pulling device 5 Grain feeding device 6 Threshing device 7 Control part (cabin)
8 Glen tank 8a Left side surface 8aa Front side surface 8ab Rear side surface 8b Front surface 8ba Vertical surface 8bb Inclined surface 8c Rear surface 8ca Vertical surface 8cb Inclined surface 8d Upper surface 8e Bottom surface 8ea Inclined surface 8eb Inclined surface 9a Grain discharge auger
9b Grain discharge auger (horizontal auger)
9c Exhaust cylinder 10 Engine room 11 Engine 111 Exhaust manifold 112 Exhaust pipe 12 Support frame 13 Takeover metal 20 Exhaust gas purification device 21 DPF
22 Urea SCR catalyst 221 Exhaust pipe 23 Urea water tank 30 Recess (space)
30a surface (first surface)
30b surface (second surface)
30c surface (third surface)
35 Cleaning Port 36 Moisture Meter 37 Supply Port 37a Guide Portion 38a One Support Member 38b Other Support Member 39 Maintenance Opening 40 Transport Spiral 41 Discharge Port 42 Vibrating Device 43 Reinforcement Member (Reinforcement Plate)
50 Cylinder input gear case 51 Case body 52 Lid member 53 Flange portion 53a Portion to entrance funnel 54 Fastening portion 54a Fastening member 55 Entrance funnel 56 Seal rubber

Claims (6)

A threshing device for threshing grains is provided on the upper left and right sides of the machine frame where the engine is installed, and a grain tank for storing threshed grains is provided on the upper left and right sides of the machine frame. In a combine provided with an exhaust gas purification device for purifying the exhaust gas of the engine at a position close to the Glen tank above,
A recess having a shape corresponding to the outer shape of the exhaust gas purification device is formed on a surface of the Glen tank facing the threshing device, and the exhaust gas purification is formed in a space in the recess. A combine characterized by intrusion of a part of the device.   The surface of the Glen tank in which the recess is formed has an inclined surface that is located above and inclined downwardly inward of the Glen tank with respect to a part of the exhaust gas purification device that has entered the space in the recess. The combine according to claim 1, further comprising a vertical surface that is located laterally and hangs down from a lower end portion of the inclined surface.   The combine according to claim 2, wherein an inclination angle of the inclined surface inclined downward inward of the Glen tank is set to a steep inclination angle equal to or greater than a repose angle of the grain.   The surface of the Glen tank in which the recess is formed is provided with an inclined surface that is located below the part of the exhaust gas purification device that has entered the space in the recess and is inclined downward toward the outside of the Glen tank. The combine according to any one of claims 1 to 3.   The exhaust gas purification device includes a DPF that removes particulate matter in the exhaust gas, and a urea SCR catalyst that purifies the ammonia produced from the urea aqueous solution by reacting with nitrogen oxides in the exhaust gas, The combine according to any one of claims 1 to 4, wherein the DPF and the urea SCR catalyst are arranged side by side so that the DPF is separated from the grain tank. A transport spiral is provided at the bottom of the grain tank on the fuselage frame so that the grain stored in the grain tank is transported toward the grain discharge auger provided on the rear side of the grain tank. ,
The combine according to any one of claims 1 to 5, wherein the concave portion protrudes inward of the grain tank to a position facing above the conveying spiral or a position exceeding this position.

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