JP2016068805A - Harvesting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a support device, which supports an exhaust emission control system in a state where the exhaust emission control system is less likely to be affected by engine cooling air, in a structure which is easily used as a harvesting machine.SOLUTION: A support device 15 of an exhaust emission control system 12 includes: an attachment bracket 20 connected with a side surface of a crank case; and a support medium 30 supported by the attachment bracket 20. The attachment bracket 20 includes: an upper connection part 22 connected with the support medium 30 in an area above a fly wheel 83; and a side connection part 21 connected with the crank case. The upper connection part 22 is located at a position which faces an upper side outer periphery part of the fly wheel 83 in a radial direction of the fly wheel 83. The side connection part 21 is formed so as to expose the outer periphery part of the fly wheel 83 to the outer side in the radial direction.SELECTED DRAWING: Figure 11

Description

  The present invention provides an exhaust gas purifying device (diesel particulate filter (DPF)) and an exhaust gas purifying device at a location near the end of the engine crankshaft in the length direction of the flywheel. The present invention relates to a harvesting machine provided with a supporting device for supporting.

As this type of harvester, for example, the harvesters described in Patent Documents 1 and 2 below are already known.
That is, in both Patent Documents 1 and 2, a support base is attached to the cylinder portion on the upper side of the engine, and the exhaust gas purification device is supported on the support base, and the exhaust gas purification device is positioned at the upper portion of the engine. It is provided as follows.

JP 2013-1132 (paragraph number “0046”, drawings “FIG. 7”, “FIG. 8”) JP 2013-241933 A (paragraph numbers “0053”, “0063”, drawings “FIG. 5”, “FIG. 8”)

Diesel engine exhaust gas purification devices use a catalyst to burn and regenerate particulate matter mainly composed of black smoke at high temperatures, and the exhaust gas purification device surface temperature is also quite high. Tend to be. However, in order to efficiently process the particulate matter, it is necessary to keep the combustion temperature inside the exhaust gas purification device high, so it is not preferable to actively cool the exhaust gas purification device.
In the combine described in Patent Documents 1 and 2, the exhaust gas purifying device is disposed on the upper part of the engine near the flywheel and away from the cooling fan of the engine. By disposing it away from the cooling fan in this way, it can be housed together with the engine in the engine room that is configured to suppress heat diffusion to the surroundings on the fuselage. It is devised so that the influence of the wind is not strong.
However, since the entire exhaust gas purification device is located in an exposed state at the upper part of the engine, the entire exhaust gas purification device is exposed to the flow of cooling air passing through the upper part of the engine. As a result, the engine cooling air comes into contact with the entire exhaust gas purification device and a lot of heat is easily taken away from the exhaust gas purification device, and the presence of the exhaust gas purification device is large with respect to the flow of the cooling air along the engine. Since there is a flow path resistance, there is room for improvement in that the thermal efficiency may decrease as a whole.

  The present invention seeks to obtain a support device that supports an exhaust gas purifying device in a structure that is easy to use as a harvester while reducing resistance to the flow of cooling air along the engine and preventing the influence of engine cooling air. It is.

In order to solve the above problems, the harvester of the present invention takes the following technical means.
[Solution 1]
An exhaust gas purifying device and a support device that supports the exhaust gas purifying device are provided, and the end portion on the side where the flywheel is mounted in the longitudinal direction of the crankshaft of the engine is below the upper end of the engine. In the state where the lower end of the exhaust gas purification device is located, the exhaust gas purification device is supported by the support device, and the support device is connected to a side surface of the crankcase on the side where the flywheel is located. And a support that is connected to the upper side of the mounting bracket and supports the exhaust gas purification device from below, and the mounting bracket is connected to the support on the upper side of the flywheel. And a side connection portion connected to the crankcase at a lower position than the upper connection portion, and the upper connection portion is located above the flywheel. There the outer peripheral portion of a position facing in the radial direction of the flywheel, said lateral connecting portion are those that are configured to expose the outer peripheral portion of the flywheel radially outward side.

[Operation and effect of invention according to Solution 1]
According to the above solution, the exhaust gas purification device is supported in a state where the lower end of the exhaust gas purification device is located below the upper end of the engine on the side where the flywheel is mounted. Therefore, the portion of the exhaust gas purification device that is located below the upper end of the engine is hidden by the shadow of the engine and deviates from the flow of the cooling air passing through the upper part of the engine, and the cooling action by the cooling air extends. It is possible to reduce the degree and the degree of cooling air flow resistance. As a result, there is an advantage that the degree to which the thermal efficiency is reduced can be reduced as compared with the state where the entire exhaust gas purification device is located at the upper part of the engine.
Further, the space above the flywheel, which is composed of the side surface of the crankcase and the upper end portion of the flywheel protruding from the side surface, is effectively used as the space for disposing the exhaust gas purification device. It is also advantageous in that an engine with a gas purification device can be easily made compact.

  Furthermore, according to this solution, the side connecting portion of the mounting bracket that supports the exhaust gas purifying device together with the support is configured to expose the outer peripheral portion of the flywheel radially outward. Therefore, it is easy to adopt a pulley-type flywheel that can be fitted with a transmission belt on the outer periphery as the flywheel. Therefore, there is an advantage that a structure that can be easily applied to a harvesting machine can be obtained as a support device that supports the exhaust gas purification device.

[Solution 2]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the mounting bracket is provided with the side connecting portion on both sides straddling the crankshaft and below the upper end of the flywheel. It is a thing.

[Operation and effect of invention according to Solution 2]
According to the solution 2, the connecting portion to the crankcase in the side connecting portion can be positioned as low as possible across the crankshaft, and accordingly, the exhaust gas purification device is easily supported at a low position. As a result, the exhaust gas purification device can be supported at a low position close to the flywheel, and there is an advantage that the degree of reduction in thermal efficiency can be further reduced.

[Solution 3]
According to another technical means of the present invention taken in order to solve the above-mentioned problem, the mounting bracket is formed in an annular shape around the crankshaft, and the side connecting portion is provided above and below the crankshaft. It is that it has a connection part.

[Operation and effect of invention according to Solution 3]
According to the solution 3, the annular mounting bracket having the connecting portions of the side connecting portions on the upper side and the lower side of the crankshaft is provided, and the strength of the mounting bracket itself and its mounting strength are improved and stable. There is an advantage that it is well supported.

[Solution 4]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the support device is located between the flywheel and the exhaust gas purification device, and has a partition-like partition plate portion that partitions the upper and lower sides. It is that it was provided.

[Operations and effects of invention according to Solution 4]
According to the solution 4, since the partition plate-like partition plate portion for partitioning the upper and lower sides is located between the flywheel and the exhaust gas purifying device, the partition is provided even if the exhaust gas purifying device is arranged close to the flywheel side. Due to the presence of the plate portion, high-temperature heat is transmitted from the exhaust gas purification device to the flywheel side, or wind due to rotation of the flywheel can be prevented from being transmitted to the exhaust gas purification device side as cooling air. .
Therefore, there is an advantage that the exhaust gas purifying device can be easily arranged as close as possible to the flywheel side.

[Solution 5]
Another technical means of the present invention taken in order to solve the above-described problems is that the support device is located near one end and near the other end in a direction along the connection surface of the mounting bracket to the crankcase. This means that the exhaust gas purifying device is supported at a location.

[Operation and effect of invention according to Solution 5]
According to the solution 5, there is an advantage that the exhaust gas purification device can be stably supported at a position near one end and a position near the other end in the direction along the connecting surface to the crankcase.

[Solution 6]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the support device is provided with a position adjustment mechanism capable of adjusting an attachment position of the exhaust gas purification device with respect to the engine. That is.

[Operations and Effects of Invention According to Solution 6]
According to the solution 6, there is an advantage that the attachment position of the exhaust gas purifying device with respect to the engine body or the flywheel can be attached by adjusting to an appropriate positional relationship.

[Solution 7]
Other technical means of the present invention taken in order to solve the above-mentioned problems are as follows: the support is a pedestal member provided with a connecting portion to the mounting bracket; a receiving member connected to the exhaust gas purifying device; An intermediate member for connecting the pedestal member and the receiving member, and the position adjusting mechanism at a connection point between the pedestal member and the intermediate member, a connection point between the intermediate member and the receiving member, or both connection points thereof Is provided.

[Operation and effect of invention according to Solution 7]
According to the solution 7, the position adjustment mechanism can be configured simply by effectively using the connection point between the base member and the intermediate member, the connection point between the intermediate member and the receiving member, or both the connection points. There are advantages.

[Solution 8]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the position adjusting mechanism is a connection point between the base member and the intermediate member or a connection point between the intermediate member and the receiving member. One of these is configured to adjust the position in the vertical direction, and the other is configured to adjust the position in the horizontal direction.

[Operation and effect of invention according to Solution 8]
According to the solving means 8, the position adjusting mechanism can be configured simply by using the connection location between the base member and the intermediate member and the connection location between the intermediate member and the receiving member, and includes the vertical direction and the horizontal direction. There is an advantage that the position can be adjusted in various directions.

[Solution 9]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the flywheel includes a belt winding portion around which a power transmission belt can be wound, and the support body includes the belt winding portion. That is, it is configured to partition the exhaust gas purification device.

[Operations and effects of invention according to Solution 9]
According to the solution 9, when a flywheel having a belt winding portion that can wind a transmission belt is used and a configuration that can be easily applied to a harvesting machine is adopted, the exhaust gas purification device that is close to the flywheel Heat can be made difficult to transfer to the transmission belt. Therefore, there is an advantage that the deterioration of the transmission belt frequently used in the harvester can be easily suppressed.

[Solution 10]
Another technical means of the present invention taken to solve the above-mentioned problems includes an unloader for discharging the harvest, and a storage support rod for supporting the unloader on the machine frame at the storage position, and an upper end portion of the storage support rod. Is that the unloader is received at an upper position of the exhaust gas purification device, and the lower end portion of the storage support rod is supported by the lower body frame across the exhaust gas purification device.

[Operations and Effects of Invention According to Solution 10]
According to the solution 10, there is an advantage that the exhaust gas purification device can be arranged at a predetermined position regardless of the presence of the storage support rod that supports the unloader on the machine frame at the storage position.

It is a left view which shows a combine. It is a top view which shows a combine. It is a right view which shows a combine. It is a top view which shows the discharge outlet part of a grain raising apparatus. It is a longitudinal cross-sectional view which follows the front-back direction which shows the discharge outlet part of a grain raising apparatus. It is a front view which shows an unloader support body part. It is a perspective view which shows the attachment part of the heat shield to a Glen tank. It is a side view which shows the support apparatus of an exhaust-gas purification apparatus. It is a rear view which shows the support apparatus of an exhaust-gas purification apparatus. It is a top view which shows the support apparatus of an exhaust-gas purification apparatus. It is a disassembled perspective view which shows the support apparatus of an exhaust-gas purification apparatus. It is a disassembled perspective view which shows a support body part. It is a longitudinal cross-sectional view which follows the front-back direction which shows a support body part. It is a longitudinal cross-sectional view which follows the left-right direction which shows a support body part. It is sectional drawing in the side view which shows a sliding-down guide plate. It is a rear view which shows a sliding-down guide plate. It is a front view which shows the support apparatus of the exhaust-gas purification apparatus in another embodiment. It is a side view which shows the support apparatus of the exhaust-gas purification apparatus in another embodiment. It is a side view which shows the support apparatus part of the exhaust-gas purification apparatus in another embodiment. It is a front view which shows the support apparatus part of the exhaust-gas purification apparatus in another embodiment.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated based on drawing.

〔overall structure〕
1 to 3 show a self-removing combine as an example of a harvester according to the present invention.
The combine includes a crawler type traveling device 1 and a body frame 2 supported by the traveling device 1. At the front part of the machine body frame 2, a cutting unit 3 that cuts the planted cereal and conveys it backward is provided so as to swing up and down with respect to the machine frame 2.

At the rear part of the machine body frame 2, a threshing device 4 for threshing the harvested cereal grains and a Glen tank 5 for storing the grain as a harvested product are provided in a state aligned in the left-right direction. At the rear of the threshing device 4, there is provided a waste straw processing device 7 that shreds the waste straw after threshing and discharges it to the field.
A driving cabin 6 that covers the driving unit is provided at the front of the body frame 2 and in front of the glen tank 5. An engine 8 (diesel engine, hereinafter simply referred to as an engine) is provided below the operation cabin 6. A cyclonic precleaner 16 for the engine 8 is provided above the rear portion of the operation cabin 6. The Glen tank 5 is provided with an unloader 10 for discharging the grain out of the machine.

  Although not shown, the driving force of the engine 8 is transmitted to the left and right crawler type traveling devices 1 as described above, and the power branched from the traveling transmission system is transmitted through the transmission system for cutting and conveying. Is transmitted to the cutting unit 3. Further, the transmission system is configured such that the power from the engine 8 is transmitted to the threshing device 4 while the power branched therefrom is transmitted to the waste straw treatment device 7.

[Threshing equipment]
The threshing device 4 is a tip side by a handling cylinder (not shown) that is rotationally driven in the handling chamber while holding the stock side of the harvested cereal mash conveyed from the mowing unit 3 by a feed chain 4A (not shown). Threshing and processing. A sorting mechanism (not shown) provided in the lower part of the handling cylinder sorts the grain into dust such as straw scraps, collects the single grain, and puts it into the grain tank 5 by the cerealing device 9 Transport as you do.
The dust that has been sorted and separated from the grain is configured to be discharged from the rear end of the threshing device 4 to the outside of the machine. Further, the waste straw after the threshing process is supplied to the waste straw processing apparatus 7 and is shredded.

As shown in FIGS. 2 to 5, the cerealing device 9 directs the grain inherited from the first thing recovery screw (not shown) provided at the bottom of the threshing device 4 toward the grain tank 5. It is to be pumped and is provided between the threshing device 4 and the glen tank 5.
The cerealing device 9 includes a screw shaft 91 inside a cylindrical lifting cylinder 90, and a rotary blade 92 that jumps the grain toward the glen tank 5 at the upper end of the screw shaft 91. . As shown in FIG. 4, the discharge port portion 93 provided at the upper end portion of the lifting cylinder 90 is formed in a fan shape that widens in a plan view from the screw shaft 91 side toward the internal space of the Glen tank 5. It is configured so that it can be introduced by diffusing as much as possible.

The discharge port portion 93 is provided with an input adjusting plate 94 for adjusting the scattering direction of the grains that are spun off by the rotating rotary blade 92.
The rotary blades 92 of the cerealing device 9 rotate clockwise in plan view and feed the grains into the glen tank 5 while being guided by the peripheral wall portion 93a of the discharge port portion 93. By rotating the rotary blade 92 clockwise, a large amount of grain is released while being guided by the peripheral wall portion 93a on the front side rather than the rear side of the peripheral wall portion 93a that is widened forward. Therefore, there is a tendency that more grains put into the Glen tank 5 are more likely to accumulate on the front side of the Glen tank 5 and less likely to accumulate in a flat state.

The input adjusting plate 94 is configured to be able to adjust the mounting angle of the guide surface 95 that guides the grain scattering direction so as to eliminate such a tendency. That is, as shown in FIGS. 4 and 5, the closing adjustment plate 94 includes a guide surface 95 that stands up and faces the rotary blade 92, and a support plate 96 that is substantially orthogonal to the lower end side of the guide surface 95. . A fulcrum pin 96 a and a locking hole 96 b are formed in the support plate 96. Then, a fulcrum hole 93b into which the fulcrum pin 96a can be inserted into the discharge port portion 93, and fixing locking holes 93c at a plurality of locations on a virtual arc having the same radius as the radius from the fulcrum pin 96a to the locking hole 96b. Is formed.
Therefore, any one of the plurality of fixing locking holes 93c is selected, the locking hole 96b is positioned so as to match the locking holes 96c, the connecting bolt 97 is inserted, and the closing adjustment plate 94 is connected to the discharge port. It can be connected and fixed to the portion 93. In this manner, by selecting and fixing the mounting posture of the charging adjustment plate 94 with respect to the discharge port portion 93, the angle of the guide surface 95 can be appropriately adjusted and set. As a result, it is possible to change the grain scattering direction of the grain jumped out by the rotary blade 92.

  The fixing of the charging adjustment plate 94 with respect to the discharge port portion 93 is not limited to the fixing locking hole 93c and the locking hole 96b and the connecting bolt 97 as described above. A locking pin (not shown) may be inserted into the hole 96b. Further, the fixing holes 93c are not limited to those formed at a plurality of positions on the virtual arc of the same radius, but long holes (not shown) are formed on the virtual arc so that the connection position of the connection bolt 97 is determined. The thing of the structure made to change can be employ | adopted.

[Glen tank]
As shown in FIGS. 1 to 3, the Glen tank 5 includes a left side wall portion 5 </ b> A on the inboard side facing the discharge port portion 93 of the cerealing device 9 and a right side wall portion on the outer side of the machine body. 5B is formed in a box shape long in the front-rear direction along the front-rear direction of the machine body at the work posture position. And it is comprised so that it can rock | fluctuate right and left centering on the up-and-down axis center y1 provided in the back side rather than the rear side wall part 5D located in the machine body back side in a working posture position.
By providing the front side away from the vertical axis y1 on the rear side so as to be able to swing left and right in this way, the Glen tank 5 has a working posture in which the longitudinal direction is along the longitudinal direction of the machine body and the left wall portion 5A is directed toward the machine body side. The position can be changed to a maintenance position (corresponding to a non-working posture position) in which the front side wall portion 5C on the front side is directed to the right lateral outward side and the body side is opened.

The grain tank 5 is provided with an unloader 10 on the rear side for discharging the grain out of the machine. The unloader 10 includes a vertical screw portion 10A having a screw shaft (not shown) that rotates about the same axis as the vertical axis y1 on the rear side of the Glen tank 5, and an upper end side of the vertical screw portion 10A. And a horizontal screw portion 10B supported so as to swing up and down around the horizontal axis x1.
As a result, the unloader 10 is configured to be swingable and swingable about the vertical axis y1 and to be able to swing up and down about the horizontal axis x1.
In the retracted posture shown in FIGS. 1 to 3, the unloader 10 is supported at the intermediate position in the longitudinal direction of the lateral screw portion 10B by the unloader support 11 (corresponding to a retractable support rod) at a predetermined retracted position.

As shown in FIGS. 1, 2, and 6, the unloader support 11 is provided with a U-shaped receiving portion 11a that receives and supports the lateral screw portion 10B from the lower side at the upper end portion. The lower end portion 11 b of the unloader support 11 is connected and fixed to the body frame 2.
As shown in FIG. 6, the U-shaped receiving portion 11 a of the unloader support 11 is in a position overlapping with an exhaust gas purification device 12 described later in the vertical direction, and the lower end portion 11 b of the unloader support 11 is The airframe 2 is connected and fixed to the body frame 2 at a position deviated from the exhaust gas purification device 12 in the left-right direction. That is, the unloader support body 11 is not formed in a straight line from the upper end side receiving portion 11a to the lower end side lower end portion 11b, but is bent in the middle in the vertical direction. It is fixed to the body frame 2 while crossing the location where the exhaust gas purifying device 12 located in a state of protruding to the side away from the engine 8 in the left-right direction of the engine 8 on the side where the 8B exists.

As shown in FIGS. 3 and 7, a taste sensor 13 is attached to the front side wall portion 5 </ b> C on the front side of the Glen tank 5. The taste sensor 13 is a well-known sensor configured to sample the grains put into the Glen tank 5 and detect the moisture content and nutrients thereof.
A rubber heat shield 14 is provided at a position where the taste sensor 13 is attached to the Glen tank 5 in a state of being located near the lower end edge of the taste sensor 13.
As shown in FIG. 7, the heat shield 14 is integrally attached to the end of the Glen tank 5 side in the front-rear direction by fastening a mounting bracket 14 a having an L-shaped cross section. And in the state which faced the front side wall part 5C of the Glen tank 5 to which the storage case 13a of the taste sensor 13 is attached, the mounting surface of the mounting bracket 14a is applied to the mounting location of the storage case 13a by the connecting bolt 14b. It is integrally connected and fixed.

[Supporting device]
The engine 8 includes an exhaust gas purification device 12 (Diesel Particulate Filter (DPF)) at a position near the end of the crankshaft (not shown) on the side where the flywheel 83 is mounted. It is attached using. The support device 15 will be described.
As shown in FIGS. 8 to 14, the support device 15 is disposed at the end of the crankshaft in the longitudinal direction with respect to the engine 8 having the cylinder head 81 on the upper part of the crankcase 80 that houses the crankshaft. ing. The end portion on the side where the support device 15 is provided is the end portion on the side where the flywheel 83 opposite to the side where the cooling fan 82 provided on one end side of the crankshaft is provided.

  The support device 15 is connected to the mounting bracket 20 connected to the side surface of the crankcase 80 on the side where the flywheel 83 is located, and is connected to the upper side of the mounting bracket 20 to support the exhaust gas purification device 12 from below. And a support 30.

[Mounting bracket]
The mounting bracket 20 includes a side connection portion 21 formed by a plate-like member that annularly surrounds a crankshaft having a coaxial axis with the rotation axis x2 of the flywheel 83, and an upper end portion of the side connection portion 21. Is provided with an upper connecting portion 22 that is connected to the upper portion. The connecting surface of the mounting bracket 20 connected to the side surface of the crankcase 80 is formed by a surface of the side connecting portion 21 facing the crankcase 80 side.

The upper connecting portion 22 is provided in a pair of front and rear so as to be positioned on both front and rear sides of a vertical line y2 passing through the rotation axis x2 with the rotation axis x2 of the flywheel 83 interposed therebetween. The pair of front and rear upper connecting portions 22 are formed with screw holes 22a that are connected to the support 30 at positions equidistant from the vertical line y2. That is, the front and rear upper connecting portions 22 are formed symmetrically with respect to the vertical line y2. The screw holes 22a are formed at a total of four positions, two positions in the longitudinal direction of the crankshaft, at positions equidistant from the vertical line y2 on both front and rear sides.
The upper connecting portion 22 is constituted by a casting integrally formed with the side connecting portion 21 provided continuously on the lower side, and is not directly connected to the crankcase 80, but is connected to the side connecting portion. The part 21 is fixed to the crankcase 80 by being connected to the crankcase 80.

The side connecting portion 21 located on the lower side of the upper connecting portion 22 is formed by a plate-like member that surrounds the crankshaft in an annular shape.
Although the outer diameter of the outer peripheral edge portion of the side connecting portion 21 is slightly larger than the outer diameter of the outer peripheral edge of the flywheel 83, the outer peripheral portion of the flywheel 83 is not wrapped around the outer peripheral side of the flywheel 83. It is formed so as to be exposed to the radially outward side. That is, the side connecting portion 21 is formed substantially in a flat plate shape as a whole, and the outer peripheral edge portion of the annular plate-like member is bent toward the side where the flywheel 83 exists, and has a diameter on the outer peripheral portion of the flywheel 83. It is not formed so as to cover oppositely in the direction. Accordingly, the side connecting portion 21 is located away from the position where the outer peripheral portion of the flywheel 83 is located on the engine 8 side as shown in FIG. 9 as viewed in a direction orthogonal to the rotational axis x2 of the flywheel 83. The radially outer side of the outer periphery of the wheel 83 is open to the outside.

  In the side connection portion 21, one surface of the annular plate-shaped member is opposed to the side surface of the crankcase 80 and serves as a connection surface. The annular plate-like member constituting the coupling surface is provided with coupling locations 23 that are coupled to the crankcase 80 at a number of locations in the circumferential direction. The connecting points 23 are scattered at positions distributed on both the left and right sides of the vertical line y2 passing through the crankshaft and on the upper and lower sides of the horizontal direction line z1 passing through the crankshaft. Each connecting portion 23 includes a screw hole (not shown) provided in the crankcase 80 and a bolt insertion hole 23 a formed in the side connecting portion 21, and the side connecting portion 21 with respect to the crankcase 80. It is configured so that it can be bolted firmly.

The side connecting portion 21 is also provided with a mounting hole 24 for mounting a starter assembly and a rotation sensor mounting portion 25 for detecting the rotational speed of the flywheel 83 in a part of the circumferential direction. A starter assembly 26 having a cell motor and a reduction gear (not shown) is attached to the attachment hole 24 for attachment, and a rotation speed detection sensor 27 is attached to the rotation sensor attachment portion 25.
The detected portion 83 a on the flywheel 83 side detected by the rotation speed detection sensor 27 is configured by a large number of recessed holes formed in the outer peripheral portion of the flywheel 83.

[Support]
The support 30 that supports the exhaust gas purification device 12 from below on the upper side of the mounting bracket 20 will be described.
The support 30 includes a pedestal member 31 having a connecting portion with respect to the mounting bracket 20, a receiving member 33 connected to the exhaust gas purification device 12, and an intermediate member 32 that connects the pedestal member 31 and the receiving member 33. ing.

The pedestal member 31 is constituted by a plate-like member that extends between the pair of front and rear upper coupling portions 22 of the mounting bracket 20 and is longer in the front-rear direction than the distance between the pair of front and rear upper coupling portions 22. The pedestal member 31 is positioned between the flywheel 83 and the exhaust gas purification device 12 and is configured to function as a partition-like partition plate portion that partitions the top and bottom.
The base member 31 has four bolt insertion holes 31 a corresponding to the four screw holes 22 a formed in the upper connection portion 22 of the mounting bracket 20 and six bolt insertions for connecting the intermediate member 32. A hole 31b is formed.

  The intermediate member 32 connected to the upper side of the pedestal member 31 includes a first intermediate member 32A connected to the pedestal member 31 and a second intermediate member 32B connected to the receiving member 33. The first intermediate member 32A has a plate-like portion 34 having the same length and the same width in the left-right direction as the pedestal member 31, and an inverted U-shape welded and fixed at two front and rear positions on the upper surface side of the plate-like portion 34. And a connecting table 35.

The plate-like portion 34 is formed with long holes 37 that are long in the left-right direction as the same number of bolt insertion holes at the same position as the six bolt insertion holes 31b to be connected to the base member 31. Yes. Further, a plane corresponding to the four bolt insertion holes 31a of the pedestal member 31 is a plane for allowing the heads of the connecting bolts 31c inserted into the four bolt insertion holes 31a to be operated by a tool. A U-shaped cutout 34a that is open to the outside as viewed is formed.
The long holes 37 of the plate-like portion 34 formed so as to face the six bolt insertion holes 31b for connecting to the pedestal member 31 are connected to the pedestal member 31 by the connecting bolt 34b. The position is for adjusting the position in the horizontal direction in the longitudinal direction of the long hole 37, that is, in the left-right direction, and is configured to serve as a position adjusting mechanism.

  The inverted U-shaped connecting base 35 is a plate-shaped portion 34 at a position straddling the two left and right cut-out portions 34 a among the four U-shaped cut-out portions 34 a formed in the plate-shaped portion 34. It is fixed by welding to the upper surface side. The connecting table 35 is formed at two positions in the front and rear at positions corresponding to the front and rear cutouts 34a. Two connection holes 35a for connecting the second intermediate member 32B are formed in the upper part of each connection base 35, and a set nut for a connection bolt 35c inserted from above on the lower surface side of each connection hole 35a. 35b is fixed by welding.

  The second intermediate member 32B coupled to the upper side of the coupling base 35 is configured by two L-shaped metal fittings 36 that are bent in an L shape in a side view along the crankshaft. The L-shaped metal fittings 36 are provided at two locations separated in the front-rear direction.

The L-shaped metal fitting 36 includes a vertical piece portion 36A having a surface along the vertical direction and a horizontal piece portion 36B having a surface along the horizontal direction and placed so as to come into contact with the coupling table 35. Yes. The vertical piece portion 36A is provided with an arcuate edge 36Aa along the lower peripheral edge of the exhaust gas purification device 12 on the upper edge side when viewed in the front-rear direction.
Two upper and lower elongated holes 39 for connecting and fixing the receiving member 33 are formed on both sides in the left-right direction at the upper part of the vertical piece portion 36A. The long hole 39 is for adjusting the position of the receiving member 33 with respect to the base member 31 in the vertical direction in the longitudinal direction of the long hole 39, that is, in the vertical direction, and serves as a position adjusting mechanism. It is configured as follows.
In the horizontal piece portion 36B, two long holes 38 for connection are formed at locations corresponding to the connection holes 35a formed in the connection table 35. The long hole 38 is for adjusting the position of the second intermediate member 32B with respect to the base member 31 in the horizontal direction in the longitudinal direction of the long hole 38, that is, in the front-rear direction, and serves as a position adjusting mechanism. It is configured to fulfill.

The receiving member 33 includes a connecting plate 33A connected to the vertical piece portion 36A of the L-shaped metal fitting 36 as the second intermediate member 32B, and an annular fastening band 33B fixed to the connecting plate 33A. . The fastening band 33 </ b> B is a well-known one configured to clamp and fix the outer peripheral portion at two places, a place closer to the front end side of the exhaust gas purification device 12 and a place away from the rear side.
The connecting plate 33A is formed with a connecting bolt insertion hole 33Aa at a location corresponding to the vertical hole 39 formed in the vertical piece portion 36A of the L-shaped metal fitting 36. The position of the connecting plate 33A is adjusted up and down by the connecting bolt 36Ab inserted through the bolt insertion hole 33Aa and the vertically long slot 39 formed in the vertical piece portion 36A of the L-shaped metal fitting 36, thereby purifying the exhaust gas. The height position of the device 12 is configured to be adjustable.

[Sliding guide plate]
As shown in FIGS. 15 and 16, on the rear side of the threshing device 4, a sliding guide plate 40 that guides the falling of the threshing waste straw is provided.
The sliding guide plate 40 is positioned in a slanting posture at the rear side of the threshing device 4 and is pulled from the rear end portion of the body frame 2 when the waste straw discharged from the threshing device 4 is dropped on the ground. And is made of a substantially rectangular sheet metal material in rear view.
The sliding guide plate 40 is attached in a state where the upper end portion is bolted to the rear portion of the threshing device 4 and the lower end portion is mounted on the body frame 2 of the rear end portion. As shown in FIG. 15, a channel-like fastener 41 that can be fitted to the rear body frame 2 is welded and fixed to the lower end portion of the sliding guide plate 40, and the fastener 41 is attached to the rear end portion. The lower end side of the slide-down guide plate 40 is supported by being fitted into the body frame 2 of the part from above.

[Other Embodiment 1]
In the above embodiment, the side connecting portion 21 formed by a plate-like member that annularly surrounds the crankshaft having the same axis as the rotation axis x2 of the flywheel 83 as the mounting bracket 20 of the support device 15. Although the thing of the structure provided with was illustrated, it is not restricted to this.
For example, as shown in FIGS. 17 and 18, the side connecting portion 21 is formed in a semicircular shape so as to straddle the crankshaft as viewed in the axial direction of the crankshaft, and the side connecting portion 21 is formed of the flywheel 83. It may be configured to be positioned below the upper end.
Also in this case, a large number of connecting portions 23 with the crankcase 80 in the side connecting portion 21 are scattered at positions distributed on the left and right sides of the vertical line y2 passing through the crankshaft.
Other configurations may be the same as those in the above-described embodiment.

[Second embodiment]
In the above embodiment, the intermediate member 32 is constituted by the two types of the first intermediate member 32A and the second intermediate member 32B as the support 30 of the support device 15. However, the present invention is not limited to this.
For example, as shown in FIG. 19 and FIG. 20, the intermediate member 32 may be constituted by one type of L-shaped metal fitting 36.
In this structure, the pedestal member 31 is configured by a combination of a first pedestal portion 31 </ b> A connected to the mounting bracket 20 and a second pedestal portion 31 </ b> B connected to the intermediate member 32.
In the first pedestal portion 31A, the mounting bracket 20 is fixed in the vertical direction and the horizontal direction so as to be fixed with the connecting bolt 31c in two directions, the vertical direction and the horizontal direction along the axial direction of the crankshaft. A two-way bolt insertion hole 31a is formed. The second pedestal portion 31B is welded and fixed to the upper side of the first pedestal portion 31A, and a bolt insertion hole 31b for connecting the intermediate member 32 to the upper plate-like portion is formed.
The long hole 38 in the front-rear direction of the horizontal piece portion 36B of the intermediate member 32 is opposed to the bolt insertion hole 31b and can be connected and fixed by a connecting bolt 35c. An elongated hole 39 in the vertical direction is formed in the vertical piece portion 36A of the intermediate member 32 so that the receiving member 33 can be attached by adjusting the vertical position.
Instead of the longitudinal hole 38 in the front-rear direction in which the horizontal piece portion 36B of the intermediate member 32 is formed, a longitudinal hole 37 in the left-right direction may be formed.
Other configurations may be the same as those in the above-described embodiment.

[3 of another embodiment]
In the above embodiment, the position adjusting mechanism is exemplified as having a structure employing the long holes 37, 38, 39, but is not limited thereto.
For example, in place of the long holes 37, 38, 39, although not shown, a plurality of connection holes for position adjustment are provided, and the exhaust gas purification device 12 is attached to the engine 8 depending on which connection hole is selected. The position may be adjustable.
In addition, an appropriate position adjusting mechanism such as a gap adjusting plate such as a shim or a distance adjustment using a screw and an adjusting nut may be adopted.
Other configurations may be the same as those in the above-described embodiment.

[4 of another embodiment]
In the above embodiment, as the position adjustment mechanism, the structure having the long holes 37, 38, 39 so as to adjust the position in the front-rear direction, the left-right direction, and the up-down direction in the horizontal direction is exemplified. It is not limited to this.
For example, any position adjustment direction can be deleted or added, such that the position can be adjusted only in one of the horizontal directions in the front-rear direction or the left-right direction, or the position can be adjusted only in the vertical direction. There is no problem.
Moreover, it is not limited to a structure that adjusts the position only on the support 30, but a structure that can be adjusted on the mounting bracket 20 side can also be adopted.
Other configurations may be the same as those in the above-described embodiment.

[5 of another embodiment]
In the above embodiment, the position adjustment mechanism has a structure in which the long holes 37, 38, 39 are formed along the horizontal direction or the vertical direction so as to adjust the position in the front-rear direction, the horizontal direction, and the vertical direction. However, this is not a limitation.
For example, a long hole along the horizontal direction is directed in an oblique direction along both the front-rear direction and the left-right direction, or a long hole is formed in an oblique posture along both the up-down direction and the front-rear direction or the left-right direction, You may comprise so that position adjustment is possible along the synthetic | combination direction along a long hole.
Other configurations may be the same as those in the above-described embodiment.

[6 of another embodiment]
In the above embodiment, the flywheel 83 has a structure having only a function as a general flywheel 83, but is not limited thereto.
For example, although not shown, a flywheel 83 having a belt winding portion around which a power transmission belt can be wound is adopted, or as shown in FIG. You may employ | adopt the structure provided with the pulley part 84 for a transmission which can wind a belt with a part.
In this case, since the support 30 that supports the exhaust gas purification device 12 is located between the exhaust gas purification device 12 and the flywheel 83 provided with a belt winding portion around which the transmission belt can be wound, the exhaust gas Even if the purification device 12 is provided close to the flywheel 83 side, the support 30 exhibits a function of a heat shield plate that blocks heat from the exhaust gas purification device 12 having a high temperature.
Other configurations may be the same as those in the above-described embodiment.

  The present invention can be used not only for a self-removing combine but also for a normal combine, a soybean harvester, a corn harvester or the like.

2 Airframe Frame 8 Engine 10 Unloader 11 Storage support rod (Unloader support)
DESCRIPTION OF SYMBOLS 12 Exhaust-gas purification apparatus 15 Support apparatus 20 Mounting bracket 21 Side connection part 22 Upper connection part 30 Support body 31 Partition board part (base member)
32 Intermediate member 33 Receiving member 37, 38, 39 Position adjustment mechanism 80 Crankcase 83 Flywheel

Claims (10)

An exhaust gas purification device;
A support device for supporting the exhaust gas purification device,
The exhaust gas purification device is in a state where the lower end of the exhaust gas purification device is positioned below the upper end of the engine at the end of the engine crankshaft where the flywheel is mounted. Supported by a support device,
The support device includes a mounting bracket connected to a side surface of the crankcase on the side where the flywheel is located, and a support body connected to the upper side of the mounting bracket to support the exhaust gas purification device from below. Prepared,
The mounting bracket includes an upper connecting portion to which the support body is connected on the upper side of the flywheel, and a side connecting portion connected to the crankcase at a lower position than the upper connecting portion,
The upper connecting portion is at a position facing the outer peripheral portion on the upper side of the flywheel in the radial direction of the flywheel,
The said side connection part is a harvester comprised so that the outer peripheral part of the said flywheel may be exposed to the radial direction outer side.   The harvesting machine according to claim 1, wherein the mounting bracket is provided with the side connection portion on both sides of the crankshaft and below the upper end of the flywheel.   The harvesting machine according to claim 1 or 2, wherein the mounting bracket is formed in an annular shape around the crankshaft and includes connecting portions of the side connecting portions on an upper side and a lower side of the crankshaft.   The said support apparatus is located between the said flywheel and the said exhaust gas purification apparatus, and the partition-plate-like partition plate part which partitions up and down is provided. Harvester.   The support device is configured to support the exhaust gas purification device at a location near one end and a location near the other end in a direction along a connection surface of the mounting bracket to the crankcase. Item 5. The harvester according to any one of Items 1 to 4.   The harvesting machine according to any one of claims 1 to 5, wherein the support device is provided with a position adjustment mechanism capable of adjusting an attachment position of the exhaust gas purification device with respect to the engine.   The support body includes a pedestal member having a connecting portion with respect to the mounting bracket, a receiving member connected to the exhaust gas purification device, and an intermediate member connecting the pedestal member and the receiving member, and the pedestal member The harvesting machine according to claim 6, wherein the position adjusting mechanism is provided at a connection location between the intermediate member and the intermediate member, a connection location between the intermediate member and the receiving member, or both connection locations.   The position adjustment mechanism is configured to adjust the position in the vertical direction at any one of the connection point between the base member and the intermediate member, or the connection point between the intermediate member and the receiving member, 8. The harvesting machine according to claim 7, wherein the harvesting machine is configured to adjust the position in the horizontal direction.   The flywheel includes a belt winding portion around which a power transmission belt can be wound, and the support body is configured to partition the belt winding portion and the exhaust gas purification device. The harvester according to any one of 1 to 8. An unloader for discharging the harvest and a storage support rod for supporting the unloader on the machine frame at the storage position,
The upper end portion of the storage support rod receives the unloader at an upper position of the exhaust gas purification device, and the lower end portion of the storage support rod is supported by the lower body frame across the exhaust gas purification device. The harvester according to any one of 1 to 9.

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