JP2019092477A - Combine-harvester - Google Patents

Abstract

To uniformize grains stored in a grain tank.SOLUTION: A combine-harvester according to one embodiment includes: a thresher at one side of the left/right of a machine body frame; a grain tank 7 at the other side of the left/right; a grain lift device between the thresher and the grain tank 7; a grain discharge part 23 discharging the grains to the inside of the grain tank 7, provided on an upper side of the grain lift device; and an engine in front of the grain tank 7. Further, the combine-harvester includes an exhaust gas cleaning device in the rearward of the engine, and a recessed part 71 for disposing the exhaust gas cleaning device, provided at a front side of the grain tank 7, where the grain discharge part 23 is provided at a lateral face 7a in the rearward of the recessed part 71 of the grain tank 7. The grain discharge part 23 includes a scattering regulation part 231 that regulates grain scattering ranges C1 and C2 in such a manner as to discharge a small proportion of the grains to the front side inside the grain tank 7 and a large proportion of the grains to the rear side.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a combine.

  Conventionally, the combine is provided with a threshing device for threshing cereal grains on one side on the left and right sides of the machine frame, and a gren tank for storing the threshed grains on the other side on the left and right sides of the body frame. Between the above-mentioned, there is provided a grain raising device for conveying the grain which has been threshed by the grain turning device upward, and a grain discharging part for discharging the grain conveyed with the grain raising device to the inside of the gren tank is provided There is something.

  In the combine, it is known to provide an exhaust gas purification device for purifying the exhaust gas discharged from the engine (diesel engine) in order to comply with recent exhaust gas regulations. In addition, in order to install the exhaust gas purification device in front of the grain tank behind the diesel engine, the combine is provided with a recess (concave part) in the front of the grain tank to secure a space for arranging the exhaust gas purification device (See, for example, Patent Document 1).

JP, 2016-155891, A

  However, in the conventional combine as described above, when the recess is formed on the front side of the grain tank, the volume on the front side of the grain tank is smaller than that on the rear side, so grains are deposited earlier on the front side Grains are stored unevenly in gren tanks.

  This invention is made in view of the above, Comprising: It aims at providing the combine which can achieve equalization | homogenization of the grain stored by a grain tank.

  In order to solve the problems described above and achieve the object, the invention according to claim 1 is provided with a threshing device (6) for threshing the grain on one side on the left and right sides of the airframe frame (2) And a grain tank (7) for storing the grain which has been threshed, and conveying the grain which has been threshed with the grain threshing apparatus (6) between the grain threshing apparatus (6) and the grain tank (7) upward A grain discharging unit (23) is provided with a grain device (20), and the grain conveyed by the grain raising device (20) is discharged to the inside of the gren tank (7) at the upper part of the grain raising device (20) In the combine (1) in which an engine (E) is provided in front of the gren tank (7), an exhaust gas purification device (4) for purifying exhaust gas of the engine (E) behind the engine (E) 11), and in the front of the glen tank (7) A recess (71) which is a space for disposing the gas purifier (11) is formed, and the grain discharging portion (23) is formed on the side surface (7a) behind the recess (71) of the glen tank (7). Arrange the grain discharge area (C1, C2) so that grains are discharged to the grain discharge part (23) with a small ratio to the front side and a large ratio to the rear side inside the gren tank (7) A combination control (231) is provided to form a combine (1).

  In the invention according to claim 2, the scattering control unit (231) is a grain in the grain raising device (20) of the discharge port (23a) from which the grain is discharged in the grain discharge part (23). The combine (1) according to claim 1, wherein the front side of the transport spiral (22) to be transported is narrowed on the front side.

  The invention according to claim 3 is the grain discharged from the discharge port (23a) on the front side of the center of the transport spiral (22) in the discharge port (23a). The combine (1) according to claim 2, wherein a restricting plate (232) for restricting the scattering to the rear side is provided.

  The invention according to claim 4 is characterized in that the gren tank (7) is internally provided with a flexible plate (13) extending in the front-rear direction and facing the grain discharge portion (23). It is set as the combine (1) of any one of Claim 3.

  The invention described in claim 5 is the combine (1) according to claim 4, wherein the flexible plate (13) is formed of a rubber material.

  The invention according to claim 6 is characterized in that a lock device (30) for fixing the gren tank (7) is provided above the exhaust gas purification device (11), and the lock is provided on the front of the gren tank (7). A lock device drive link (33) is provided which connects the device (30) and an operation lever (32) for operating the lock device (30) and interlocks with the operation lever (32), and the lock device drive link The combine (1) according to any one of claims 1 to 5, wherein (33) is disposed so as to avoid the recess (71) on the front surface of the gren tank (7).

  According to the invention as set forth in claim 1, by restricting the scattering range of the grain by the scattering control part in the inside of the grain tank, the grain discharged from the grain discharging part is deposited on the front side in a biased manner. Can be suppressed, and the grain can be leveled. As a result, the machine balance is improved, and the operability and the workability are improved.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the scattering control part is configured to narrow the front side of the discharge port from which the grain is discharged It is possible to obtain inexpensively a configuration in which grains are discharged at a small ratio to the front side and a large ratio to the rear side.

  According to the invention as set forth in claim 3, in addition to the effect of the invention as set forth in claim 2, the scattering restriction portion is provided with a restriction plate for restricting the scattering of grains discharged from the discharge port to the rear side. By setting it as a structure, the structure which discharges | emits a grain in the ratio which there are few in the front side inside a grain tank and is large can be obtained inexpensively. Moreover, since it is also possible to retrofit to the existing grain discharge part, it becomes cheaper.

  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 grain discharged from the grain discharge part faces the grain discharge part By colliding with the flexible plate, it is possible to diffuse the grain in the left and right direction, and it is possible to suppress uneven deposition of the grain.

  According to the invention as set forth in claim 5, in addition to the effect of the invention as set forth in claim 4, the grain discharged from the grain discharge part can be diffused in the left-right direction while suppressing excessive rebound. .

  According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, in the front of the gren tank, the lock device drive link is disposed avoiding the recess. Thus, the lock device drive link and the exhaust gas purification device do not interfere with each other. For this reason, the exhaust gas purification device does not disturb the movement of the lock device drive link. Thereby, the lock device operates smoothly.

It is a schematic left side view of the combine concerning an embodiment. It is a schematic right side view of the combine concerning an embodiment. It is a front view for explanation showing composition of a grain tank and a grain raising device. It is a left side view for explanation showing composition of a grain tank and a grain raising device. It is a right side view for explanation showing composition of a grain tank and a grain raising device. It is a top view for explanation showing composition of a grain tank and a grain raising device. It is a front view for explanation showing composition of a grain discharge part and a scattering control part. It is a left view for explanation showing composition of a grain discharge part and a scattering control part. It is a top view for explanation showing composition of a grain discharge part and a scattering control part. It is a top view for explanation showing a scattering range of grain discharged from a grain discharge part. It is a front view for explanation showing composition of a lock device. It is a left side view for explanation showing composition of a grain connection device. It is a top view for explanation showing composition of a grain connection device. It is a front view for explanation showing composition of a lock device drive link. It is a perspective view for explanation showing composition of a link shake control member. It is a front view for explanation showing composition of a modification (the 1) of a lock device drive link. It is a front view for explanation showing composition of a modification (the 2) of a lock device drive link. It is a rear view for explanation showing arrangement of a moisture meter. It is a left side view for explanation showing arrangement of a gren tank cleaning mouth. It is a left side view for explanation showing composition of a rocking shelf sheave and a lower sheave. It is a top view for explanation showing composition of a lower side sheave. It is a functional block diagram showing an example of a control system concerning sheave open / close control. It is a table for explanation showing an example of the sheave open / close control. It is a left side view for explanation showing composition of other examples of a lower side sheave. It is a left side view for explanation showing composition of a sheave opening degree change part. It is a table | surface for description which shows the other example of a sheave switching control.

  Embodiments of the combine according to the present invention will be described in detail based on the drawings. Note that the present invention is not limited by this embodiment, and various modifications can be made without departing from the scope of the present invention. Furthermore, constituent elements in the following embodiments include those that are easily and easily replaceable by those skilled in the art, or those that are substantially the same, ie, so-called equivalent ranges.

  FIG. 1 is a schematic left side view of the combine 1 according to the embodiment. FIG. 2 is a schematic right side view of the combine 1 according to the embodiment. In the following description, the longitudinal direction, the lateral direction, and the vertical direction in the normal use mode of the combine 1 will be described as the longitudinal direction, the lateral direction, and the vertical direction in each part.

  Among them, the "front" direction is the traveling direction of the combine 1 at the time of mowing work, the "left" direction is the left direction toward the front, and the "right" direction is the right direction toward the front , "Below" is the direction in which gravity acts. 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. Further, in the following description, the combine 1 may be referred to as an “airframe”.

<Overview of Combine 1>
First, the outline of the combine 1 will be described. As shown in FIGS. 1 and 2, the combine 1 includes an airframe frame 2, a traveling device 3 installed under the airframe frame 2, and various operations described later installed in the airframe frame 2 upper portion and the airframe frame 2 front portion. And an apparatus.

  The traveling device 3 is provided with a pair of left and right crawler belts 3a that transmit power from an engine E installed at a predetermined position on the vehicle body frame 2 and circulate. The traveling device 3 causes the vehicle to travel as the crawler belt 3a revolves. The crawler belt 3a is formed endlessly by an elastic body such as rubber. In addition, the traveling device 3 includes drive wheels 3 b for rotating the crawler belt 3 a and tension wheels 3 c for applying tension to the crawler belt 3 a at both ends in the front-rear direction of the vehicle body.

  As the working device, for example, a reaper 4 installed at the front of the machine frame 2, a grain conveying device 5 installed at one side (left side) on the machine frame 2, and a grain stand on the machine frame 2 The threshing devices 6 installed on the left and right one side (left side) behind the transport device 5 and the other side (right side) on the fuselage frame 2 installed side by side with respect to the grain transportation device 5 and the threshing device 6 A grain auger 7 is provided, and a vertical auger 8a stands upright at the rear of the grain tank 7, and a grain discharge auger 8 in which a horizontal auger 8b lies above the grain throttling device 6 and the grain tank 7 in a standby state.

  The reaper 4 is provided with a dividing weir 4a for dividing the grain of the field, a raising device 4b for causing the divided grain, and a cutting blade for cutting the root of the caused grain. The reaper 4 separates the grain weirs to be planted in the field with a weeding weir, causes the divided grain weirs to occur with a trigger, and reaps the caused grain weirs with a cutting blade. The grain conveying device 5 is provided at the rear of the harvesting device 4 and conveys the grain harvested by the harvesting device 4 toward the threshing device 6.

  After the threshing device 6 threshes the grain gourd in the threshing part, the grain is sorted in the sorting part. The gren tank 7 stores the threshed and sorted kernels, and the bottom of the longitudinal auger 8a in the grain discharge auger 8 provided behind the gren tank 7 by a transport spiral provided at the bottom portion of the stored grains. Send in. The grain discharging auger 8 feeds the grain fed to the vertical auger 8a from the top of the vertical auger 8a to the horizontal auger 8b, and the grain fed to the horizontal auger 8b is discharged at the tip of the horizontal auger 8b Eject from tube 8c.

  The combine 1 also includes a control unit 9 installed at the upper front of the fuselage frame 2. The control unit 9 is covered by a cabin 9a. The control unit 9 is provided with a pilot seat on which a pilot (also referred to as a worker) is seated inside the cabin 9a, various control levers, instruments, and the like.

  Moreover, the combine 1 is equipped with the engine E and the exhaust gas purification apparatus 11 (refer FIG.3, FIG.4 and FIG. 6). The engine E is a diesel engine and is accommodated in an engine room 10 provided at the rear of the cabin 9 a on the airframe frame 2. In the engine room 10, in addition to the engine E, a radiator for cooling the engine E, a radiator fan, and the like are accommodated. The exhaust gas purification device 11 purifies the exhaust gas from the engine E, and is installed above the rear of the engine E on the airframe frame 2. The details of the exhaust gas purification device 11 will be described later with reference to FIGS. 3, 4 and 6.

  Moreover, the combine 1 is equipped with the grain raising apparatus 20. The grain growing device 20 conveys the grain sorted (primary sorting) by the sorting section of the grain milling device 6 upward (hereinafter referred to as "lifting"). The grain raising apparatus 20 lifts the grain collected by the first collection part of the sorting part to the upper part of the gren tank 7. In addition, the grain which has not been collected in the collection part the most is collected by the second collection part, and in order to be reprocessed (secondary sorting), the sorting part is carried out by another grain growing device 24 (see FIGS. 12 and 13). Will be returned to

  The grain rising device 20 is also referred to as a grain rising barrel (the most grain rising barrel), and a transport spiral 22 is provided inside the barrel 21 to lift and transport grains by spiral transport. At the upper part of the cylindrical portion 21, a grain discharging unit 23 is provided for discharging the grains lifted by the conveying spiral (hereinafter referred to as “vertical spiral”) 22 to the inside of the gren tank 7.

<Glen tank 7 and grain raising device 20>
Here, the grain tank 7 and the grain growing apparatus 20 will be further described with reference to FIGS. 3 to 6. 3 to 6 are an explanatory front view, a left side view, a right side view and a plan view for illustrating the configurations of the grain tank 7 and the grain growing device 20.

  As shown in FIGS. 3 to 6, the gren tank 7 has a recess 71 formed on the surface (left side) 7a opposite to the threshing device 6 (see FIG. 3) on the front side in the front-rear direction. The recess 71 is a space in which the exhaust gas purification device 11 is disposed, and at least a part of the exhaust gas purification device 11 intrudes. As shown in FIGS. 3 and 4, the recess 71 is formed of three surfaces (first to third surfaces) 71 a, 71 b, 71 c that have a trapezoidal shape in a front view.

  Of the first to third surfaces 71a, 71b, 71c, the first surface 71a is an inclined surface inclined downward to the inside of the gren tank 7, and is at a maximum angle at which grains (grains) do not flow and stabilize. It is set to a steeper angle than a certain repose angle.

  As shown in FIGS. 3 to 6, the lower part of the vertical spiral 22 of the grain growing device 20 is connected to a horizontal spiral 61 for grain conveyance which extends in the left-right direction from the most recovery portion of the grain milling device 6. In addition, the grain discharging portion 23 provided on the upper portion of the vertical spiral 22 of the grain growing device 20 is disposed on the upper side of the left side surface 7 a of the gren tank 7. Moreover, as shown in FIG. 4 and FIG. 5, the grain discharge part 23 is back side rather than the recessed part 71 of the grain tank 7, and is arrange | positioned at the rear side in the left side 7a.

<Exhaust gas purification device 11>
Next, the exhaust gas purification device 11 will be described in detail with reference to FIG. 3, FIG. 4 and FIG. As shown in FIG. 3, FIG. 4 and FIG. 6, the exhaust gas purification device 11 is a DPF (Diesel Particulate Filter) 111 for removing particulate matter in the exhaust gas and nitrogen oxides in the exhaust gas after passing through the DPF 111. And urea SCR (Selective Catalytic Reduction) catalyst 112, which reacts with the ammonia generated by hydrolysis of urea water to convert it into harmless nitrogen. The DPF 111 and the urea SCR catalyst 112 are each mounted in a cylindrical case. The reference numerals in the figure are assigned to these respective cases.

The DPF 111 supports a catalyst (Pt) on a honeycomb carrier, oxidizes a soluble organic component (SOF) and a nitrogen compound (NO _x ) component, and filters and collects particulate matter. The DPF 111 is formed of, for example, a honeycomb-like cell structure having a plurality of through holes having a polygonal cross section and including an honeycomb carrier and a plurality of partition walls, and an outer wall surrounding the honeycomb structure.

  The exhaust gas purification device 11 has a function of DOC (Diesel Oxidation Catalyst) for efficiently oxidizing nitrogen monoxide in the DPF 111, and is generated from a urea aqueous solution (hereinafter referred to as “urea aqueous”) in the urea SCR catalyst 112. It has the function of selective catalytic reduction using ammonia.

The exhaust gas purification device 11 converts nitrogen monoxide in the exhaust gas into nitrogen dioxide in the DPF 111, and injects urea water to nitrogen dioxide in a pipe connecting the outlet of the DPF 111 and the inlet of the urea SCR catalyst 112. By converting nitrogen dioxide into water and nitrogen gas, nitrogen oxides (NO _x ) in the exhaust gas are removed. The purified exhaust gas flows through the tail pipe 113 and is discharged to the outside.

As described above, the exhaust gas of the engine E can be effectively purified by purifying the nitrogen compound (NO _x ) in the exhaust gas by incorporating the urea SCR catalyst 112 into the exhaust gas purification device 11.

  Further, the DPF 111 and the urea SCR catalyst 112, which are the exhaust gas purification device 11, are disposed side by side in the left-right direction, with the direction of the imaginary central axis of each cylindrical case along the longitudinal direction. In addition, the exhaust gas purification device 11 is connected in a state in which the cylindrical cases of the DPF 111 and the urea SCR catalyst 112 are arranged in parallel, and is unitized.

  Thus, the exhaust gas purification device 11 can be made compact by unitizing the DPF 111 and the urea SCR catalyst 112. In addition, the exhaust gas purification device 11 is supported from below by the support member 12 and is disposed above the rear of the engine E on the fuselage frame 2 while being separated upward from the fuselage frame 2.

  Here, when the recess 71 is formed on the front side of the grain tank 7 as described above, the volume on the front side of the grain tank 7 is smaller than that on the rear side. For this reason, grains are deposited earlier on the front side inside the gren tank 7, and grains are biased and stored on the front side of the gren tank 7. If grains are stored unevenly in the glen tank 7, the balance of the airframe may be deteriorated, and the maneuverability and operability of the airframe may be lowered. For this reason, in this embodiment, it is set as the structure which can suppress that a grain is stored unevenly by the grain tank 7 about the grain discharge part 23. FIG.

<Grain discharge part 23>
Next, the grain discharging unit 23 will be described in detail with reference to FIGS. 7 to 10. 7 to 9 are an explanatory front view, a left side view and a plan view for illustrating the configuration of the grain discharging unit 23 and the scattering control unit 231. 7 is an enlarged view of the A1 portion in FIG. 3, FIG. 8 is an enlarged view of the A2 portion in FIG. 4, a view in the B1 direction in FIG. 7, FIG. 9 is an A3 portion in FIG. FIG. 9 is an enlarged view and a view in the B2 direction in FIG. 8. FIG. 10 is a plan view for explanation showing scattering ranges C1, C2 of grains discharged from the grain discharging unit 23. As shown in FIG.

  As shown in FIG. 7 to FIG. 9, in the grain discharging unit 23, in order to restrict the scattering range of grains by a scattering plate (also referred to as “release plate”) 222 that rotates with the rotation shaft 221 of the vertical spiral 22. The scattering control unit 231 is provided at the discharge port 23a from which the grains are discharged. The scattering control unit 231 has a regulating plate 232, and regulates the scattering range of grains so as to discharge the grains at a ratio of a small number to the front side and a large number to the rear side inside the grain tank 7 by the regulating plate 232. The “front side” refers to the front side of the center of the gren tank 7 in the front-rear direction, and the “rear side” refers to the rear side of the gren tank 7 in the front-rear direction.

  As shown in FIG. 10, when the scattering control portion 231 is provided, the grains discharged from the discharge port 23a become smaller in the scattering range C1 which is the front side from the center in the front-rear direction and the back side from the center in the front-rear direction It increases in the scattering range C2 which becomes the side.

  According to this configuration, by restricting the scattering range of the grain by the scattering control unit 231 in the grain tank 7, it is possible to suppress the grain discharged from the grain discharging unit 23 from being biased toward the front side. It is possible to achieve the leveling of grains. As a result, the machine balance is improved, and the operability and the workability are improved.

  As shown in FIGS. 7-9, the grain discharge part 23 is provided with the scattering control part 231 in the discharge port 23a from which grain is discharged. The scattering control unit 231 narrows the opening area on the front side of the center of the transport spiral (longitudinal spiral) 22 at the discharge port 23 a. For example, the scattering control unit 231 reduces the opening area on the front side of the discharge port 23 a by providing a plate material on the front side of the discharge port 23 a.

  According to this configuration, the scattering control unit 231 narrows the front side of the discharge port 23a from which grains are discharged, so that grains are discharged at a small ratio to the front side inside the gren tank 7 and to the rear side. Can be obtained inexpensively.

  In the above-described scattering restricting portion 231, the plate material narrows the opening area on the front side of the discharge port 23a, but the invention is not limited thereto. For example, even if the shape of the discharge port 23a is changed to narrow the front opening area Good.

  In addition, as shown in FIGS. 7 to 9, the scattering control unit 231 restricts the scattering of grains discharged from the discharge port 23 a to the front side of the center of the longitudinal spiral 22 at the discharge port 23 a. At the same time, a regulation plate 232 is provided which guides the grain discharged from the discharge port 23a toward the rear side.

  According to this configuration, the scattering control portion 231 is configured to be provided with the control plate 232 for restricting the scattering of the grain discharged from the discharge port 23a to the rear side, so that the scattering control portion 231 is small at the front side inside the gren tank 7. A configuration can be obtained inexpensively for discharging grains at a large proportion on the rear side. Moreover, since it is also possible to retrofit to the existing grain discharge part, it becomes cheaper.

<Flexible plate 13>
Referring back to FIGS. 3 to 6, the gren tank 7 extends in the front-rear direction inside the gren tank 7 and is suspended from the top plate (upper surface) of the gren tank 7 to discharge the discharge port 23 a of the grain discharging portion 23. And a flexible plate 13 which is a flexible plate. Preferably, the flexible plate 13 is provided over the entire area of the grain tank 7. The flexible plate 13 is preferably formed of a rubber material. The flexible plate 13 is preferably made of tarpaulin.

  According to this configuration, the grain discharged from the grain discharging unit 23 collides with the flexible plate 13 opposed to the grain discharging unit 23, as shown by the arrow in FIG. 3. It can be diffused in the left and right direction, and it is possible to suppress uneven deposition of grains. Further, since the flexible plate 13 is a rubber material, the flexible plate 13 can be provided with appropriate absorbability. Thereby, the grain discharged | emitted from the grain discharge part 23 can be diffused in the left-right direction, suppressing an excessive rebound.

<Lock Device 30 and Lock Device Drive Link 33>
The lock device 30 for fixing the gren tank 7 on the machine frame 2 and the lock device drive link 33 for driving the lock device 30 will be described with reference to FIGS. 3, 6 and 11. FIG. 11 is a front view for illustrating the configuration of the lock device 30. As shown in FIG.

  As shown in FIGS. 3, 6 and 11, the combine 1 includes a lock device 30 and a lock device drive link 33. The lock device 30 fixes the gren tank 7. The lock device drive link 33 drives the lock device 30. The lock device 30 is provided on the upper left side of the glen tank 7 in a front view. The lock device 30 is located above the exhaust gas purification device 11 disposed in the recess 71 of the grain tank 7. The locking device 30 comprises a fixing hook 31. The locking device 30 fixes the gren tank 7 to the threshing device 6 above the exhaust gas purification device 11 by the fixing hook 31.

  As shown in FIG. 3, at the lower part of the front surface of the grain tank 7, an operation lever 32 operated when driving the lock device 30 is provided. The operating lever 32 is turned in the left-right direction by an operator or the like to open and close the fixing hook 31 and fix and release the grain tank 7.

  As shown in FIG. 3, the lock device drive link 33 is provided on the front surface of the glen tank 7 and connects the lock device 30 and the control lever 32 and interlocks with the operation of the control lever 32. Drive. The lock device drive link 33 includes a plurality of link members (a first link member 34 and a second link member 35) connected by a link fulcrum. The lock device drive link 33 forms a link mechanism in which the first link member 34 and the second link member 35 rotate in the surface direction of the front surface of the grain tank 7.

  The lock device drive link 33 is disposed so as to be offset inwardly of the gren tank 7 so as to avoid the recess 71 on the front surface of the gren tank 7. In this case, as shown in FIG. 3, it is preferable to form the link member (for example, the first link member 34) in a shape that approximates the outer shape of the recess 71 in front view.

  According to this configuration, the lock device drive link 33 is disposed so as to avoid the recess 71 on the front surface (front surface) of the grain tank 7, so that the lock device drive link 33 and the exhaust gas purification device 11 do not interfere with each other. For this reason, the exhaust gas purification device 11 does not disturb the movement of the lock device drive link 33. Thereby, the lock device 30 operates smoothly.

  Further, as shown in FIG. 11, among the three surfaces (first to third surfaces) 71 a, 71 b, 71 c forming the recess 71, the third surface 71 c is an exhaust gas purification device 11 disposed in the recess 71. Of the glen tank 7 and inclined downward toward the left side surface 7 a of the glen tank 7. That is, the third surface 71c is a surface which inclines downward and outward. According to this configuration, the recess 71 is shaped to be open to the outside (left side), so the work of arranging the exhaust gas purification device 11 in the recess 71 becomes easy.

  The threshing device right side frame 62 (see FIG. 12) for supporting the right side of the threshing device 6 on the airframe frame 2 and the threshing device 20 are connected by the threshing device connecting frame 39 (see FIG. 12). The lock device 30 is provided on the grain connection device connection frame 39.

<Graining device connecting frame 39>
The grain connection device connection frame 39 will be described with reference to FIGS. 12 and 13. FIG. 12 is a left side view for illustrating the configuration of the grain connection device 39. As shown in FIG. FIG. 13 is a plan view for explaining the structure of the grain connection device 39. As shown in FIG. In addition, in FIG. 12 and FIG. 13, in order to emphasize the grain-raising device connection frame 39, the grain-raising device connection frame 39 is hatched.

  As shown in FIGS. 12 and 13, the grain connecting device connection frame 39 is formed in a rod shape, and is arranged to extend in parallel with the longitudinal direction (front-rear direction) of the gren tank 7 (see FIG. 12) . According to this configuration, space saving on the airframe 2 can be realized.

  As shown in FIG. 12 and FIG. 13, the grain connecting device connection frame 39 is arranged so as to avoid directly above another grain rising device (also referred to as “second grain raising barrel”) 24 in plan view. According to this configuration, for example, the operation is performed because the grain connection device 39 does not interfere when the conveyance spiral is extracted from the cylindrical portion 25 of another grain growth device 24 (or the conveyance spiral is inserted) during maintenance. It becomes easy.

<Detailed Configuration of Lock Device Drive Link 33>
Here, the configuration of the lock device drive link 33 will be described in detail with reference to FIGS. 14 and 15. FIG. 14 is an explanatory front view showing the configuration of the lock device drive link 33. As shown in FIG. FIG. 15 is a perspective view for illustrating the configuration of the link shake regulating member 40. As shown in FIG. In FIG. 14, the space formed by the recess 71 of the grain tank 7 is hatched. The lock device drive link 33 connects between the lock device 30 and the control lever 32 as described above.

  The lock device drive link 33 includes the first link member 34 and the second link member 35 as described above. As shown in FIG. 14, the first link member 34 and the second link member 35 are formed in a long plate shape. Further, the first link member 34 is disposed on the front surface of the glen tank 7 so as to avoid the recess 71. The second link member 35 has two pivot points (a first pivot point 351 and a second pivot point 352), and is pivotably attached to the front of the grain tank 7 by the first pivot point 351. . The second link member 35 is rotatably attached with the linear movement member 36 by the second rotation fulcrum 352, and the lock pin 37 is attached through the linear movement member 36. Further, the first link member 34 is attached to the fixed hook 31, and the operation lever 32 is fixed to the second link member 35.

  In the lock device drive link 33, when the operation lever 32 is operated to rotate, the second link member 35 rotates about the first rotation fulcrum 351, and the connecting portion with the first link member 34 is vertically moved. Move. The first link member 34 moves up and down in conjunction with the vertical movement of the connecting portion of the second link member 35 to open and close the fixing hook 31. Further, in the lock device drive link 33, at the same time as the opening and closing drive of the fixed hook 31, the linear movement member 36 rotatably attached to the second link member 35 about the second rotation fulcrum 352 vertically moves The lock pin 37 is vertically moved linearly via the linear movement member 36. The lock pin 37 is inserted into and removed from the cylindrical receiving portion 38 by moving up and down. The lock pin 37 locks the lock device drive link 33 by being inserted into the receiving portion 38.

  According to this configuration, the link mechanism can be provided on the front surface of the grain tank 7 while bypassing the recess 71, and the link mechanism can be provided with a simple configuration.

  Further, in the connecting portion between the first link member 34 and the second link member 35, a long hole 341 is formed in the first link member 34, and a pin 353 is provided in the second link member 35. Thereby, when the fixing hook 31 is closed, each operation of the fixing hook 31, the first link member 34 and the second link member 35 is absorbed by the long hole 341 and the pin 353 inserted in the long hole 341, and the operation lever 32 It is possible to suppress the transfer of reaction force by each motion.

  Further, as shown in FIGS. 14 and 15, a link deflection regulating member 40 is provided on the front surface of the grain tank 7. The link deflection regulating member 40 includes a cushion portion 41, and the abutment surface 41a of the cushion portion 41 abuts on the first link member 34, thereby regulating the deflection of the first link member 34 in the front-rear direction, thereby driving the lock device. Regulate the swing of link 33. According to this configuration, the shake prevention of the lock device drive link 33 can be easily performed.

  Next, modifications of the lock device drive link 33 (lock device drive links 33A and 33B) will be described with reference to FIGS. FIGS. 16 and 17 are front views for illustrating the configuration of a modification of the lock device drive link 33 (lock device drive links 33A and 33B). In the description of the modification, the same reference numerals are given to the same or equivalent parts as the above-mentioned lock device drive link 33, and the description may be omitted.

  As shown in FIG. 16, the lock device drive link 33A according to the first modification differs from the lock device drive link 33 described above in the configuration of the first link member 34A. In the lock device drive link 33A, the first link member 34A is a wire cable. Also in the first link member 34A, similarly to the above-described first link member 34, the first link member 34A is bent by the pulley 341A provided on the front surface of the grain tank 7 and disposed so as to avoid the recess 71. The first link member 34A is held so that both ends thereof can be moved linearly by the holding portion 342A, and one end is connected to the fixing hook 31 via the wire 343A, and the other end is connected to the second link member 35. It is connected to one end.

  According to this configuration, the link mechanism can be provided on the front surface of the grain tank 7 while bypassing the recess 71, and the link mechanism can be provided with a simple configuration.

  Further, as shown in FIG. 17, the lock device drive link 33B according to the second modification is different from the lock device drive link 33 described above in the configuration of the first link member 34B and the lock pin drive link 50. In the lock device drive link 33B, the first link member 34B is a rod member. The fixing hook 31 to which one end portion of the first link member 34B is rotatably connected extends to the right from the innermost (right side) of the recess 71 of the glen tank 7. The lock device drive link 33 B includes a lock pin drive link 50 that operates the lock pin 37 simultaneously with the opening and closing of the fixed hook 31 by the operation lever 32.

  The lock pin drive link 50 includes a third link member 51 and a fourth link member 52. The third link member 51 is rotatably connected to one end of the second link member 35B. The fourth link member 52 is rotatably connected to the other end of the third link member 51. The fourth link member 52 is provided with a lock pin 37.

  According to this configuration, the link mechanism can be provided on the front surface of the grain tank 7 while bypassing the recess 71, and the link mechanism can be provided with a simple configuration.

  Further, in the lock pin drive link 50, the pin 511 is provided at the other end of the third link member 51. Further, an elongated hole 521 is formed at one end of the fourth link member 52. The fourth link member 52 is rotatably connected to the third link member 51 by inserting the pin 511 of the third link member 51 into the long hole 521. Thereby, when the fixing hook 31 is closed, each operation of the fixing hook 31, the first link member 34B and the second link member 35B is absorbed by the long hole 521 and the pin 511 inserted in the long hole 521, and the operation lever 32 It is possible to suppress the transfer of reaction force by each motion.

<Arrangement of peep windows 80 and 81>
Next, referring back to FIGS. 3 and 6, the arrangement of the viewing windows 80 and 81 of the grain tank 7 will be described. As shown in FIG. 3, in the upper part of the front surface of the gren tank 7, a viewing window (hereinafter referred to as a “front peep window”) 80 is provided which allows the inside of the gren tank 7 to be viewed from the outside. The front viewing window 80 is disposed on the right side of the recess 71. Thereby, it becomes easy to see the conveyance state of the grain conveyed by the grain discharge part 23 arrange | positioned on the left side 7a of the grain tank 7, the discharge state of the grain from the grain discharge part 23, etc.

  Further, as shown in FIG. 6, on the upper surface of the gren tank 7, a viewing window (hereinafter referred to as an “upper peep window”) 81 is provided which allows the inside of the gren tank 7 to be viewed from outside. The top view window 81 is provided immediately above the recess 71 in which the exhaust gas purification device 11 is disposed. Thereby, it is possible to visually confirm the depth on the rear side of the grain tank 7 which is difficult to confirm from the front view window 80. Note that the top view window 81 may be provided by turning using a transparent member such as an acrylic plate, or may be provided so as to be openable and closable.

<Arrangement of Moisture Analyzer 90>
Next, the arrangement of the moisture meter 90 will be described with reference to FIGS. 4 and 18. FIG. 18 is an explanatory rear view showing the arrangement of the moisture meter 90. As shown in FIG. As shown in FIG. 4 and FIG. 18, the combine 1 is provided with a moisture meter 90 which arbitrarily takes in the grain discharged to the gren tank 7 and detects the moisture content of the grain. As shown in FIG. 4, the moisture meter 90 is provided with an inlet 91 for taking in grains. The intake port 91 is provided at a lower rear than the grain discharge port 23 a in the grain discharge unit 23. Further, as shown in FIG. 18, the intake port 91 is provided on the right side of the glen tank 7 in a biased manner. Thereby, it becomes easy to take in the grain discharged | emitted from the discharge port 23a.

  Further, as shown in FIG. 4, the main body portion of the moisture meter 90 is provided inside the outer frame of the glen tank 7. As a result, the moisture meter 90 can be prevented from protruding to the outside of the gren tank 7, and the outer shape of the gren tank 7 can be formed simply. The rear end edge of the flexible plate 13 provided inside the gren tank 7 extends to the vicinity of the intake port 91 of the moisture meter 90. Thereby, it becomes possible to take in the grain which rebounds by flexible board 13 from an intake port, and it becomes easy to take in grain further.

<Placement of Glen tank cleaning port 82>
Next, the arrangement of the cleaning port (Glen tank cleaning port 82) of the gren tank 7 will be described with reference to FIG. FIG. 19 is a left side view for illustrating the arrangement of the glen tank cleaning port 82. As shown in FIG. As shown in FIG. 19, the glen tank cleaning port 82 is provided on the first surface 71 a forming the recess 71 of the gren tank 7. As a result, even if a protrusion is formed inside the grain tank 7 due to the formation of the recess 71, the cleaning property is improved and it is possible to prevent the grain from remaining in the protrusion. The glen tank cleaning port 82 may be provided on either the second surface 71 b or the third surface 71 c that forms the recess 71 together with the first surface 71 a. As a result, even if a protrusion due to the recess 71 is formed inside the grain tank 7, the cleaning property is improved and it is possible to prevent the grain from remaining in the protrusion.

<Sieve switching control>
Next, the sheave open / close control will be described with reference to FIGS. FIG. 20 is an explanatory left side view showing a configuration of swing shelf sheave 95 and lower sheave 96. Referring to FIG. FIG. 21 is a plan view for illustrating the configuration of the lower sheave 96. As shown in FIG. FIG. 22 is a functional block diagram showing an example of a control system related to sheave open / close control. FIG. 23 is a table for illustrating an example of the sheave open / close control.

  As shown in FIG. 20, in the sorting unit 6A of the threshing device 6 (see FIG. 1), the grains are dropped and sorted to a swinging shelf that swings and transports the grain threshed in the threshing portion toward the rear. A sheave (hereinafter referred to as "rock shelf sheave") 95 is provided. Below the swing rack sheave 95, a lower sheave 96 and a crimp net 97 are provided side by side in the front-rear direction. The lower sheave 96 is provided on the front side in the front-rear direction, and further drops and sorts the kernels dropped and sorted by the swing shelf sheave 95. The crimp net 97 is provided on the rear side in the front-rear direction, and further drops and sorts the kernels which have passed through the lower sieve 96.

  As shown in FIGS. 20 and 21, at the upper portion of the lower sheave (also referred to as "front side sheave") 96, a wire 98 extending in a direction orthogonal to the extension direction of each sheave 96a of the lower sheave 96 Provided. In the wire 98, as shown in FIG. 20, the wire 98 is provided so that the unevenness is arranged at equal intervals. The lower sheave 96 is configured not to interlock with the swing shelf sheave 95, and is independently controlled to open and close.

  As shown in FIG. 22, in the control unit 100 of the combine 1 (see FIG. 1), a processing amount sensor 101 for detecting the processing amount of cereal grains (grains) and a turning sensor 102 for detecting corner turning of the machine are respectively provided. Connected Further, the control unit 100 is connected to a swing shelf sheave motor 103 for opening and closing the swing shelf sheave 95 (see FIG. 20) and a lower sheave motor 104 for opening and closing the lower sheave 96 (see FIG. 20). .

  As shown in FIG. 23, when the control unit 100 determines that the processing amount is “large” based on the detection signal from the processing amount sensor 101, that is, when there are many grains to be processed, the swingable sheave 95 The swing shelf sheave motor 103 and the lower sheave motor 104 are controlled such that the lower sheave 96 is both "open". When the control unit 100 determines that the processing amount is "small", that is, when the number of grains to be processed is small, the rocking shelf sheave 95 and the lower sheave 96 both swing so that they become "close". The rack sheave motor 103 and the lower sheave motor 104 are controlled.

  Further, when the control unit 100 determines that the machine body is turning at a corner based on a detection signal from the turning sensor 102, the rocking sheave motor 103 is set so that the rocking sheave 95 is "opened". It controls and controls the lower sheave motor 104 so that the lower sheave 96 is "closed".

  According to this configuration, the sheave open / close control independent of the processing amount is performed during corner turning of the airframe. This makes it possible to reduce breakage contamination while suppressing increase in sorting loss.

  Next, another example of the sheave switching control will be described with reference to FIGS. FIG. 24 is an explanatory left side view showing a configuration of another example of the lower sheave (a front sheave 96A and a rear sheave 96B). FIG. 25 is a left side view for illustrating the configuration of the sheave opening degree changing unit 99. As shown in FIG. FIG. 26 is a table for illustrating another example of the sheave open / close control.

  As shown in FIG. 24, in the lower sheave according to another example, each sheave 96a is configured to be divided into two parts, a front half and a rear half in the front-rear direction. Among the lower sheaves, the front half sheave 96a in the front-rear direction is referred to as a front side sheave 96A, and the rear half sheave 96a is referred to as a rear side sheave 96B. The front sheave 96A and the rear sheave 96B are independently controlled to open and close.

  Further, as shown in FIG. 25, the front sheave 96A and the rear sheave 96B are each provided with a sheave opening degree changing portion 99 for changing the degree of opening. The sheave opening degree change unit 99 has a "P0 position" where the sheave 96a is "fully closed" and a "P4 position" where the sheave 96a is "fully open". Further, the sheave opening degree change unit 99 has “P1, P2, P3 positions” in which the degrees of opening gradually increase between the “P0 position” and the “P4 position”.

  As shown in FIG. 26, when the control unit 100 determines that the processing amount is "large" based on the detection signal from the processing amount sensor 101, the rocking shelf sheave 95, the front sheave 96A and the rear sheave 96B The swing shelf sheave motor 103 and the lower sheave motor 104 are controlled to be fully open, that is, “P4 position”. When the control unit 100 determines that the processing amount is "small", the rocking shelf sheave 95 is "P1 position", the front sheave 96A is "full closed", that is, "P0 position", and the rear sheave 96B is "P3 position". The swing shelf sheave motor 103 and the lower sheave motor 104 are controlled so as to be

  In addition, when the control unit 100 determines that the machine body is turning at a corner based on a detection signal from the turning sensor 102, the “P4 position” at which the rocking sheave sheave 95 is “fully open”, the front sheave 96A. The swing shelf sheave motor 103 and the lower sheave motor 104 are controlled such that the "P0 position" at which the "full close" is reached and the "P4 position" at which the rear sheave 96B is "full open". Furthermore, when the control unit 100 determines that the kind is a break-in mixture, the rocking shelf sheave 95 is at the "P3 position" and the front sheave 96A is "fully closed" at the "P0 position", the rear sheave 96B. Controls the swing shelf sheave motor 103 and the lower sheave motor 104 so that the position P3 becomes "P3 position".

  According to this configuration, the sheave open / close control independent of the processing amount is performed during corner turning of the airframe. This makes it possible to reduce breakage contamination while suppressing increase in sorting loss. Further, it is possible to cope with a reduction in throughput, and by separately controlling the opening and closing of the front side sheave 96A and the rear side sheave 96B, it becomes possible to correspond to various types and yields.

  The lower sheave may extend over the entire area in the front-rear direction as a non-split structure. In this case, it comprises two stages of a swing shelf sheave 95 and a lower sheave 96. Even with this configuration, it is possible to cope with the reduction of the processing amount.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the invention are not limited to the specific details and representative embodiments represented and described above. Accordingly, various modifications may 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 3 traveling device 3a crawler belt 3b driving wheel 3c tension wheel 4 reaper 4a branching device 4b raising device 5 grain transportation device 6 threshing device 61 horizontal spiral 62 threshing device right frame 7 gren tank 7a left side 7b Right side 71 Recess 71a First side 71b Second side 71c Third side 8 Grain discharge auger 8a Vertical auger 8b Horizontal auger 8c Discharge cylinder 9 Control section 9a Cabin 10 Engine room 11 Exhaust gas purification device 111 DPF
112 urea SCR catalyst 113 tail pipe 12 support member 13 flexible plate 20 grain loading device 21 tubular portion 22 transport spiral (longitudinal spiral)
221 Rotary shaft 222 Scattering plate 23 Grain discharge part 23a Discharge port 231 Scattering control part 232 Regulating plate 24 Other grain raising device 25 Tubular part 30 Locking device 31 Fixing hook 32 Operating lever 33 Locking device drive link 33A Locking device drive link 33B Lock device drive link 34 1st link member 34A 1st link member 34B 1st link member 341 long hole 341A pulley 342A holding part 35 2nd link member 35B 2nd link member 351 rotation fulcrum (1st rotation fulcrum)
352 Pivot point (second pivot point)
36 linear motion member 37 lock pin 38 receiving portion 39 grain connection device frame 40 link runout restricting member 41 cushion portion 41 a contact surface 50 lock pin drive link 51 third link member 511 pin 52 fourth link member 521 long hole 80 peeping Window (the front window)
81 peep window (view window on top)
82 glen tank cleaning port 90 moisture meter 91 intake port 95 rocking shelf sheave 96 lower sheave 96a sheave 97 crimp net 98 wire rod 99 sheave opening degree changing unit 100 control unit 101 throughput sensor 102 swing sensor 103 rocking rack sheave motor 104 lower Side sheave motor C1 scattering range C2 scattering range E engine

In order to solve the problems described above and achieve the object, the invention according to claim 1 is provided with a threshing device (6) for threshing the grain on one side on the left and right sides of the airframe frame (2) And a grain tank (7) for storing the grain which has been threshed, and conveying the grain which has been threshed with the grain threshing apparatus (6) between the grain threshing apparatus (6) and the grain tank (7) upward A grain discharging unit (23) is provided with a grain device (20), and the grain conveyed by the grain raising device (20) is discharged to the inside of the gren tank (7) at the upper part of the grain raising device (20) In the combine (1) in which an engine (E) is provided in front of the gren tank (7), an exhaust gas purification device (4) for purifying exhaust gas of the engine (E) behind the engine (E) 11), and in the front of the glen tank (7) A recess (71) which is a space for disposing the gas purifier (11) is formed, and the grain discharging portion (23) is formed on the side surface (7a) behind the recess (71) of the glen tank (7). Arrange the grain discharge area (C1, C2) so that grains are discharged to the grain discharge part (23) with a small ratio to the front side and a large ratio to the rear side inside the gren tank (7) Scattering control part (231) is provided , and the scattering control part (231) is used as a grain in the above-mentioned grain raising device (20) of the discharge port (23a) from which grains are discharged in the grain discharge part (23) And the lower half of the discharge port (23a) on the front side of the center of the transport spiral (22) at the discharge port (23a). Installed so as to open the outlet (23 Control plate (232) for restricting the scattering to the front side where the recess (71) of the grain discharged from the above is provided, and the inside of the gren tank (7) has flexibility. The glen tank (7) extends in the front-rear direction on the side opposite to the side on which the grain discharging portion (23) is disposed, and faces the grain discharging portion (23), and the discharge port (23a) A flexible plate (13) for diffusing grains discharged in the left-right direction is provided . A combine (1) is provided.

The invention according to claim 2, wherein the flexible plate (13) is a combine of claim 1 formed of a rubber material (1).

The invention according to claim 3 is characterized in that a lock device (30) for fixing the gren tank (7) is provided above the exhaust gas purification device (11), and the lock is provided on the front of the gren tank (7). A lock device drive link (33) is provided which connects the device (30) and an operation lever (32) for operating the lock device (30) and interlocks with the operation lever (32), and the lock device drive link The combine (1) according to claim 1 or 2 , wherein (33) is disposed to avoid the recess (71) on the front surface of the gren tank (7).

According to the invention as set forth in claim 1, by restricting the scattering range of the grain by the scattering control part in the inside of the grain tank, the grain discharged from the grain discharging part is deposited on the front side in a biased manner. Can be suppressed, and the grain can be leveled. As a result, the machine balance is improved, and the operability and the workability are improved. In addition, the scattering control portion narrows the front side of the discharge port from which the grain is discharged, so that the grain can be discharged at a low ratio to the front side inside the gren tank at a low rate. Can. In addition, the scattering control portion is configured to be provided with a control plate for restricting the scattering of the grain discharged from the discharge port to the rear side, so that the grain in a small proportion on the front side inside the gren tank Can be obtained at low cost. Moreover, since it is also possible to retrofit to the existing grain discharge part, it becomes cheaper. In addition, the grains discharged from the grain discharge part collide with the flexible plate facing the grain discharge part, so that the grains can be diffused in the left-right direction, and the grain is prevented from being unevenly deposited. be able to.

According to the invention as set forth in claim 2 , in addition to the effect of the invention as set forth in claim 1 , the grain discharged from the grain discharge portion can be diffused in the left-right direction while suppressing excessive rebound. .

According to the invention of claim 3 , in addition to the effect of the invention of claim 1 or 2 , in the front of the glen tank, the lock drive link is disposed to avoid the recess, so that the lock drive can be achieved. There is no interference between the link and the exhaust gas purification device. For this reason, the exhaust gas purification device does not disturb the movement of the lock device drive link. Thereby, the lock device operates smoothly.

Claims (6)

A threshing device for threshing cereal grains is provided on one side on the left and right sides of an airframe frame, and a gren tank is provided for storing grains threshed on the other side, and threshing is performed between the threshing device and the gren tank And a grain discharging unit for discharging the grain conveyed by the grain raising apparatus to the inside of the grain tank at the upper part of the grain raising apparatus, and the grain tank In the combine which provided the engine ahead of
An exhaust gas purification device for purifying exhaust gas of the engine is provided behind the engine, and a concave portion, which is a space for disposing the exhaust gas purification device, is formed on the front side of the grain tank.
The grain discharging part is disposed on the side surface of the glen tank on the rear side of the recess, and the grain discharging part discharges grains at a small ratio to the front side inside the gren tank in a large proportion. A combine characterized in that a scattering control unit for restricting the scattering range of grains is provided.   The said scattering control part was made into the structure which narrows the front side rather than the center of the conveyance spiral by which a grain is conveyed in the said grain raising apparatus of the discharge port where a grain is discharged in the said grain discharge part. Combine.   The said scattering control part set it as the structure which provides the control board which controls scattering to the back side of the grain discharged | emitted from the said discharge port on the front side rather than the center of the said conveyance spiral in the said discharge port. Combine.   The combine according to any one of claims 1 to 3, wherein the glen tank has a flexible plate which extends in the front-rear direction and which faces the grain discharging portion.   The combine according to claim 4, wherein the flexible plate is made of a rubber material. A lock device for fixing the glen tank is provided above the exhaust gas purification device,
A lock device drive link is provided on the front surface of the gren tank, connecting between the lock device and an operation lever for operating the lock device and interlocking with the operation lever.
The combine according to any one of claims 1 to 5 in which said lock device drive link is arranged in the front of said grain tank so as to avoid said crevice.

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