KR20210035143A - Harvester - Google Patents

Abstract

An objective of the present invention is to obtain a support apparatus supporting an exhaust gas purifier in a state in which there is difficulty in applying an effect by engine cooling air, as a structure which can be easily used as a harvester. A support apparatus (15) of an exhaust gas purifier (12) includes an installation bracket (20) connected to a side of a crankcase, and a support body (30) supported on the installation bracket (20). The installation bracket (20) includes an upper connection part (22) with which the support body (30) is connected in an upper part of a flywheel (83), and a lateral connection part (21) connected to the crankcase. The upper connection part (22) is located on a position opposed to the upper outer circumference part of the flywheel (83) in a radial direction of the flywheel (83), and the lateral connection part (21) is formed to expose the outer circumference part of the flywheel (83) to the outside in a radial direction.

Description

Harvester {HARVESTER}

The present invention provides an exhaust gas purification device (diesel particulate filter (DPF)) and a support for supporting the exhaust gas purification device at a location near the end portion on the side where the flywheel is mounted in the longitudinal direction of the engine crankshaft. It relates to a harvester equipped with a device.

As this type of harvester, for example, the harvester described in Patent Documents 1 and (2) below is known.

That is, in both Patent Documents 1 and 2, a support base is provided in the cylinder portion on the upper side of the engine, the exhaust gas purification device is supported on the support base, and the exhaust gas purification device is provided so as to be positioned above the engine.

Japanese Patent Application Laid-Open No. 2013-1132 (paragraph number “0046”, drawings “7”, “8”) Japanese Unexamined Patent Application Publication No. 2013-241933 (paragraphs “0053”, “0063”, drawings “5” and “8”)

In a diesel engine exhaust gas purification device, particulate matter mainly composed of graphite in the exhaust gas is burned and regenerated at a high temperature by using a catalyst, etc., and the surface temperature of the exhaust gas purification device tends to become quite high. have. However, in order to efficiently process particulate matter, it is necessary to keep the combustion temperature inside the exhaust gas purifying apparatus high, so it is not preferable to actively cool the exhaust gas purifying apparatus.

In the combines described in Patent Documents 1 and 2, the exhaust gas purification device is arranged above the engine near the flywheel side, away from the cooling fan of the engine. By arranging it away from the cooling fan in this way, it is housed together with the engine in the engine room that is configured to suppress heat diffusion from the machine body to the periphery, and is designed so that the influence of the engine cooling wind by the cooling fan is not strongly influenced. Has been.

However, since the entire exhaust gas purification device is located in a state exposed to the upper part of the engine, the entire exhaust gas purification device is exposed to the flow of the cooling wind passing through the upper part of the engine. As a result, the engine cooling wind comes into contact with the entire exhaust gas purification device, so that a lot of heat from the exhaust gas purification device is easily taken away, and the presence of the exhaust gas purification device becomes a large flow path resistance with respect to the flow of the cooling wind along the engine. There is room for improvement in that there is a possibility that the efficiency will be reduced.

The present invention aims to obtain a support device for supporting an exhaust gas purification device in a state where it is difficult to be influenced by the engine cooling wind while reducing resistance to the flow of cooling wind along the engine, with a structure that is easy to use as a harvester. .

In order to solve the above problems, the following technical means are devised in the harvester of the present invention.

〔Solution 1〕

An exhaust gas purifying device and a supporting device for supporting the exhaust gas purifying device are provided, and the exhaust gas is disposed at an end of the engine in the crankshaft longitudinal direction on the side on which the flywheel is mounted, and at a lower side than the upper end of the engine. In a state in which the lower end of the purification device is positioned, the exhaust gas purification device is supported by the supporting device, and the supporting device includes an installation bracket connected to a side surface of the crankcase on the side where the flywheel is located, and the mounting bracket It is connected to an upper side and has a support for supporting the exhaust gas purification device from a lower side, and the mounting bracket includes an upper connection part to which the support is connected at an upper side of the flywheel, and the crankcase below the upper connection part. And a lateral connection part connected to, and the upper connection part is at a position opposite to the outer circumference of the flywheel in the radial direction of the flywheel, and the lateral connection part exposes the outer circumference of the flywheel to the outer circumference in the radial direction It is configured to make it happen.

[Operation and effects of the invention related to solution 1]

According to the above solution, the exhaust gas purification device is supported in a state in which the lower end of the exhaust gas purification device is positioned below the upper end of the engine on the side on which the flywheel is mounted. Therefore, in the exhaust gas purification device, the portion located below the upper end of the engine is covered by the shape of the engine and escapes from the flow of the cooling wind passing through the upper part of the engine. The degree of resistance to flow can be reduced. As a result, there is an advantage that the degree of reduction in thermal efficiency can be reduced compared to a state in which the entire exhaust gas purification device is positioned above the engine.

In addition, since the space on the upper side of the flywheel, which is composed of the side surface of the crankcase and the upper end of the flywheel protruding from the side, is effectively used as a space for the arrangement of the exhaust gas purification device, an exhaust gas purification device is attached. It is also advantageous in that it is easy to construct a compact engine.

In addition, according to this solution, since the side connection portion of the mounting bracket supporting the exhaust gas purification device together with the support is configured to expose the outer peripheral portion of the flywheel radially outward, as a flywheel, a transmission belt is mounted on the outer peripheral portion. It is easy to adopt a flywheel of the combined pulley type as possible. Therefore, there is an advantage of obtaining a structure that is easy to apply to a harvester as a support device for supporting the exhaust gas purification device.

[Solution 2]

Another technical means of the present invention devised in order to solve the above problem is that the mounting bracket is provided with the lateral connection portion on both sides of the crankshaft and below the upper end portion of the flywheel.

[Operation and effect of the invention related to solution 2]

According to the solution 2, the connection point to the crankcase in the side connection portion can be positioned as low as possible over the crankshaft, so that it is easy to support the exhaust gas purification device at a low position. Thereby, there is an advantage that the exhaust gas purifying apparatus can be supported at a low location close to the flywheel, and the degree to which the thermal efficiency is reduced can be further reduced.

〔Solution 3〕

Another technical means of the present invention devised to solve the above problem is that the mounting bracket is formed in an annular shape around the crankshaft, and has connection points of the lateral connecting portions on the upper and lower sides of the crankshaft. will be.

[Operation and effect of the invention related to solution 3]

According to the solution means 3, it is provided with an annular mounting bracket having a connection point of the side connection portion on the upper side and the lower side of the crankshaft, and improving the strength of the mounting bracket itself and its installation strength, so that it is easy to stably support. There is an advantage.

〔Solution 4〕

Another technical means of the present invention devised to solve the above problem is that the support device is disposed between the flywheel and the exhaust gas purification device, and a partition plate in the form of a partition wall partitioning the top and bottom is provided.

[Operation and effects of the invention related to solution 4]

According to the solution 4, since the partition plate portion in the form of a partition wall partitioning the upper and lower portions is located between the flywheel and the exhaust gas purification device, even if the exhaust gas purification device is disposed close to the flywheel side, the partition plate portion exists, thereby reducing the exhaust gas. It is possible to suppress high-temperature heat from being transmitted from the purifier to the flywheel side, or from being transmitted as cooling wind to the exhaust gas purifying apparatus by wind caused by rotation of the flywheel.

Therefore, there is an advantage that it is easy to arrange the exhaust gas purifying device in a state as close as possible to the flywheel side.

〔Solution 5〕

Another technical means of the present invention devised to solve the above problem is that the support device includes the exhaust at a location near one end and a location near the other end in a direction along the connection surface of the mounting bracket to the crankcase. It is configured to support the gas purification device.

[Operation and effect of the invention related to solution 5]

According to the solution means 5, there is an advantage that the exhaust gas purification device can be stably supported at a location near one end and a location near the other end in the direction along the connection surface to the crankcase.

〔Solution 6〕

Another technical means of the present invention devised to solve the above problem is that the support device is provided with a position adjusting mechanism capable of adjusting the installation position of the exhaust gas purification device with respect to the engine.

[Operation and effects of the invention related to solution 6]

According to the solution 6, there is an advantage in that the installation position of the exhaust gas purifying device to the engine body or the flywheel can be adjusted and installed in an appropriate positional relationship.

[Solution 7]

Another technical means of the present invention devised to solve the above problem is that the support includes a pedestal member having a connection portion to the mounting bracket, a pedestal member connected to the exhaust gas purification device, the pedestal member and the pedestal member It means that the said position adjusting mechanism is provided at the connection point of the said pedestal member and the said intermediate member, or the connection point of the said intermediate member and a support member, or both connection points.

[Operation and effects of the invention related to solution 7]

According to the solution means 7, there is an advantage that the position adjustment mechanism can be configured with a simple structure by effectively using the connection point between the pedestal member and the intermediate member, or the connection point between the intermediate member and the pedestal member, or both connection points. .

〔Solution 8〕

Another technical means of the present invention devised to solve the above problem is that the position adjustment mechanism is in the vertical direction at either a connection point between the pedestal member and the intermediate member, or a connection point between the intermediate member and the support member. It is configured to adjust the position, and is configured to adjust the position in the horizontal direction from the other side.

[Operation and effects of the invention related to solution 8]

According to the solution 8, various directions including the vertical direction and the horizontal direction can be configured with a simple structure by using the connection point between the pedestal member and the intermediate member and the connection point between the intermediate member and the pedestal member. There is an advantage in that the position can be adjusted.

[Resolution 9]

Another technical means of the present invention devised to solve the above problem is that the flywheel includes a belt winding portion capable of winding a power transmission belt, and the support member is disposed between the belt winding portion and the exhaust gas purification device. It is structured to be divided.

[Operation and effects of the invention related to solution 9]

According to solution 9, when a flywheel having a belt winding portion capable of winding a transmission belt is used, and a configuration that is easy to apply to a harvester is adopted, heat from the exhaust gas purification device close to the flywheel is transmitted to the transmission belt. It can be difficult. Therefore, there is an advantage in that it is easy to suppress deterioration of the transmission belt used in the harvester.

〔Solution method 10〕

Another technical means of the present invention devised to solve the above problem includes an unloader for discharging harvests and a storage support lever for supporting the unloader on a machine body frame at a storage position, and the upper end of the storage support lever The unloader is supported at an upper position of the exhaust gas purification device, and a lower end of the storage support lever crosses the exhaust gas purification device and is supported by the machine body frame below.

[Operation and effects of the invention relating to solution 10]

According to the solution means 10, there is an advantage that the exhaust gas purification device can be disposed at a predetermined position regardless of the presence of a storage support lever for supporting the unloader on the machine body frame at the storage position.

1 is a left side view showing a combine.
Fig. 2 is a plan view showing a combine.
Fig. 3 is a right side view showing a combine.
4 is a plan view showing a discharge port of the grain-graining apparatus.
Fig. 5 is a longitudinal cross-sectional view along the front-rear direction showing a discharge port of the grain-graining apparatus.
Fig. 6 is a front view showing a portion of an unloader support body.
Fig. 7 is a perspective view showing an installation portion of a heat shield to a grain tank.
Fig. 8 is a side view showing the supporting device of the exhaust gas purification device.
Fig. 9 is a rear side view showing a supporting device of the exhaust gas purification device.
Fig. 10 is a plan view showing a support device for an exhaust gas purification device.
Fig. 11 is an exploded perspective view showing a support device for an exhaust gas purification device.
Fig. 12 is an exploded perspective view showing a support part.
Fig. 13 is a longitudinal cross-sectional view along the front-rear direction showing a support part.
Fig. 14 is a longitudinal cross-sectional view along the left and right direction showing a support part.
Fig. 15 is a sectional view as viewed from the side showing a slide guide plate.
Fig. 16 is a rear view showing a slide guide plate.
Fig. 17 is a front view showing a support device for an exhaust gas purification device according to another embodiment.
Fig. 18 is a side view showing a support device for an exhaust gas purification device according to another embodiment.
Fig. 19 is a side view showing a support device portion of an exhaust gas purifying device according to another embodiment.
Fig. 20 is a front view showing a portion of a supporting device of an exhaust gas purification device according to another embodiment.

An embodiment for carrying out the present invention will be described based on the drawings.

[Overall configuration]

1 to 3 show a strip type combine as an example of a harvester according to the present invention. This combine includes a crawler type traveling device 1 and a machine body frame 2 supported by the traveling device 1. The front part of the machine main frame 2 is provided with a harvesting part 3 for mowing and conveying the planted grains back to the machine main frame 2 so as to be able to swing up and down with respect to the machine main frame 2.

The rear part of the machine main frame 2 is provided with a threshing device 4 for threshing the mowing grain stalks and a grain tank 5 for storing grains as harvested products in a state arranged in the left and right directions. At the rear portion of the threshing device 4, a discharged straw treatment device 7 is provided for shredding and discharging the discharged rice straw after the threshing.

A driving cabin 6 is provided at the front of the machine body frame 2 and in front of the grain tank 5 to cover the driving unit. An engine 8 (diesel engine, hereinafter simply referred to as an engine) is provided below the driving cabin 6. A cyclone type precleaner 16 for the engine 8 is provided above the rear portion of the driving cabin 6. The grain tank 5 is equipped 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 electric system is transferred to the mowing unit through the mowing and conveying electric system. It is conveyed to (3). Further, the electric power 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 discharged rice straw treatment device 7.

[Threshing device]

The threshing device 4 is supported by a feed chain 4A (not shown) showing the bottom of the mowing grain bag conveyed from the harvesting unit 3, and is transported by a barrel (not shown) that is rotationally driven in the feeding chamber. Threshing is performed by sweeping the tip of the ear. Sorting by dust such as grain and rice straw debris by a sorting mechanism (not shown) provided in the lower part of the barrel, collecting the single grained grain, and using a grain lifting device (9) It is conveyed so that it may be put into the grain tank 5.

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. In addition, the discharged rice straw after the threshing treatment is supplied to the discharged rice straw treatment device 7 to be shredded.

As shown in Figs. 2 to 5, the grain device 9 transfers grains inherited from the first recovery screw (not shown) provided at the bottom of the threshing device 4 toward the grain tank 5. It is for lifting and is installed between the threshing device 4 and the grain tank 5.

Graining device 9 has a screw shaft 91 built-in in the cylindrical lifting cylinder 90, and also has a rotating blade 92 that blows grains into the grain tank 5 at the upper end of the screw shaft 91. Installed. The discharge port 93 provided at the upper end of the lifting cylinder 90 is a fan whose end is widened in a plan view from the side of the screw shaft 91 toward the inner space of the grain tank 5 as shown in FIG. 4. It is formed in a shape, and is configured so that the grains can be spread and injected as wide as possible.

The discharge port 93 is provided with an input control plate 94 for adjusting the scattering direction of the grains protruding by the rotating blade 92.

The rotating blade 92 of the grain-graining device 9 rotates clockwise when viewed in a plan view, and guides the grain to the peripheral wall portion 93a of the discharge port portion 93, while introducing the grain into the grain tank 5. As the rotary blade 92 rotates in the clockwise direction, more grains are guided to the peripheral wall portion 93a on the front side than on the rear side, among the peripheral wall portions 93a whose ends are widened, and are discharged. Therefore, there is a tendency that more grains put into the grain tank 5 are more likely to be deposited on the front side of the grain tank 5, and thus are difficult to be deposited in a flat state.

The input control plate 94 is configured to be able to adjust the installation angle of the guide surface 95 guiding the scattering direction of the grain so as to eliminate this tendency. That is, the input control plate 94, as shown in Figs. 4 and 5, a guide surface 95 that stands up and faces the rotating blade 92, and a support plate approximately orthogonal to the lower end side of the guide surface 95 ( 96). The supporting plate 96 is formed with a supporting point pin 96a and a locking hole 96b. And, in the discharge port 93, a support point hole 93b into which the support point pin 96a can be inserted, and a plurality of locations on a virtual arc having a radius equal to the radius from the support point pin 96a to the locking support hole 96b. There is formed a locking hole 93c for fixing.

Accordingly, one of the plurality of fixing locking holes 93c is selected, the locking hole 96b is positioned so as to match this, and the connecting bolt 97 is inserted through it, and the input control plate ( 94) can be connected and fixed to the discharge port 93. In this way, by selecting and fixing the installation posture of the input control plate 94 with respect to the discharge port 93, the angle of the guide surface 95 can be appropriately adjusted and set. As a result, the scattering direction of the grains protruding by the rotating blade 92 can be changed.

In addition, the fixing of the input control plate 94 to the discharge port 93 is not limited to the fixing by the locking hole 93c and the locking hole 96b and the connecting bolt 97 as described above, and is fixed. A locking pin (not shown) may be inserted into the locking hole 93c and the locking hole 96b for use. In addition, it is not limited to forming a fixing locking hole 93c at a plurality of locations on a virtual arc of the same radius, but forming a long hole (not shown) on the virtual arc to connect the connecting bolt 97 A structure in which the position is changed can be adopted.

〔Grain Tank〕

As shown in Figs. 1 to 3, the grain tank 5 includes a left wall portion 5A inside the machine body opposite to the discharge port 93 of the grain cropping device 9, and a right wall portion outside the machine body. (5B) is formed in an elongated box shape in the front-rear direction along the machine main body front-rear direction at the working posture position. In the working posture position, the upper and lower shaft centers y1 provided at the rear side of the rear wall portion 5D positioned at the rear side of the machine body are configured to be able to swing left and right as the rotation center.

In this way, the front side separated from the vertical axis y1 of the rear side is installed to be able to swing left and right, so that the grain tank 5 is a working posture position in which the left wall portion 5A faces the inside of the machine body in the longitudinal direction along the front and rear direction of the machine body. Wow, the posture can be changed to a maintenance position (corresponding to a non-work posture position) in which the front wall portion 5C on the front side faces to the right lateral and outer side and is opened to the inside of the machine body.

In the grain tank 5, an unloader 10 for discharging grains out of the machine is provided on the rear side. This unloader 10 includes a vertical screw portion 10A having a built-in screw shaft (not shown) rotating around the vertical axis y1 at the rear side of the grain tank 5 and coaxially, and the vertical screw portion ( It has a transverse screw portion 10B supported so as to be undulating and swinging around the transverse axis x1 on the upper end side of 10A).

In this way, the unloader 10 is configured to be able to swing and swing around the vertical axis y1 and to swing and swing around the horizontal axis x1.

In the storage posture shown in Figs. 1 to 3, the unloader 10 is in the longitudinal direction of the transverse screw portion 10B by the unloader support 11 (corresponding to the storage support lever) at a predetermined storage position. The intermediate position of is supported.

As shown in Figs. 1, 2 and 6, the unloader support 11 is provided with a U-shaped support portion 11a that supports and supports the transverse screw portion 10B from the lower side at the upper end. . The lower end 11b of the unloader support 11 is connected and fixed to the machine main frame 2.

As shown in Fig. 6, the U-shaped support portion 11a of the unloader support 11 is at a position overlapping in the vertical direction with the exhaust gas purification device 12 to be described later, and the unloader support 11 The lower end portion 11b of) is connected and fixed to the machine body frame 2 at a position deviated from the left-right direction from the exhaust gas purification device 12. In other words, the unloader support 11 is not formed in a straight line from the receiving portion 11a on the upper end side to the lower end 11b on the lower end side, but is curved in the middle of the vertical direction, and the engine 8 The machine body frame while crossing the presence of the exhaust gas purification device 12 positioned in a state protruding from the side where the flywheel 8B of) is present to the side spaced from the engine 8 in the left-right direction of the engine 8 It is fixed at (2).

As shown in FIGS. 3 and 7, a taste sensor 13 is provided in the front wall portion 5C on the front side of the grain tank 5. The taste sensor 13 is a well-known thing configured to sample the grains put in the grain tank 5 and detect the moisture content and nutrients.

A rubber heat shield plate 14 is provided at a location where the taste sensor 13 is attached to the grain tank 5 in a state located near the lower end edge of the taste sensor 13.

As shown in FIG. 7, the heat shield plate 14 is integrally provided with an L-shaped mounting metal member 14a having an L-shaped cross section at an end portion on the side of the grain tank 5 in the front-rear direction by tack fixing. Then, in a state where the opposite surface of the mounting metal member 14a is applied to the front wall portion 5C of the grain tank 5 in which the accommodation case 13a of the food taste sensor 13 is installed, the connecting bolt 14b ), it is integrally connected and fixed to the installation location of the housing case 13a.

〔Supporting device〕

The engine 8 has an exhaust gas purification device 12 (Diesel Particulate Filter (DPF)) at a location near the end of the side on which the flywheel 83 is mounted in the longitudinal direction of the crankshaft (not shown). It is installed using the support device 15. This support device 15 will be described.

As shown in Figs. 8 to 14, the support device 15 is in the longitudinal direction of the crankshaft with respect to the engine 8 provided with the cylinder head 81 on the top of the crankcase 80 incorporating the crankshaft. It is arranged at the end. The end on the side where the support device 15 is disposed is an end on the side on which the flywheel 83 is installed on the opposite side to the side on which the cooling fan 82 provided on the one end side of the crankshaft is located.

The support device 15 is a mounting bracket 20 connected to the side of the crankcase 80 on the side where the flywheel 83 is located, and the exhaust gas purification device connected to the upper side of the mounting bracket 20 It is provided with the support body 30 which supports (12) from the lower side.

[Mounting bracket]

The mounting bracket 20 includes a lateral connecting portion 21 formed by a plate-shaped member that annularly surrounds a crankshaft having a rotation axis x2 of the flywheel 83 and a crankshaft coaxial, and the upper end of the lateral connecting portion 21 It is provided with the upper connection part 22 installed continuously. The connection surface of the mounting bracket 20 connected to the side surface of the crankcase 80 is constituted by a surface of the lateral connection part 21 facing the crankcase 80 side.

The upper connection part 22 is provided with a pair of front and rear so as to be positioned on both front and rear sides of the vertical line y2 passing through the rotation axis x2 of the flywheel 83 with the rotation axis x2 therebetween. In the front and rear pair of upper connecting portions 22, a screw hole 22a serving as a connection point with the support body 30 is formed at a position equidistant from the vertical line y2. That is, the front and rear upper connecting portions 22 are formed symmetrically with the vertical line y2 as a boundary. The screw holes 22a are positioned equidistant from the vertical line y2 on both front and rear sides, and are formed in a total of four locations in two locations in the longitudinal direction of the crankshaft.

This upper connection part 22 is composed of a cast product integrally formed with the lateral connection part 21 that is continuously installed on the lower side, and is not directly connected to the crankcase 80, and the lateral connection part 21 is a crankcase. It is fixed to the crankcase 80 by being connected to the 80.

The side connecting portion 21 located on the lower side of the upper connecting portion 22 is formed of a plate-shaped member that surrounds the crankshaft in an annular shape.

The outer diameter of the outer periphery portion of the lateral connection portion 21 is slightly larger than the outer diameter of the outer periphery of the flywheel 83, but does not surround the outer periphery of the flywheel 83, but the outer periphery of the flywheel 83 has a diameter It is formed so as to expose outward in the direction. That is, the lateral connection part 21 is formed in a substantially flat plate shape as a whole, and the outer circumferential portion of the annular plate-shaped member is bent toward the side where the flywheel 83 exists, and the outer circumferential portion of the flywheel 83 has a diameter It is not formed to cover opposite in the direction. Accordingly, the lateral connection part 21 is located away from the position of the outer circumference of the flywheel 83 to the engine 8 side as shown in FIG. 9 when viewed in a direction perpendicular to the rotational axis x2 of the flywheel 83 , The outer peripheral portion of the flywheel 83 in the radial direction is open to the outside.

In this lateral connecting portion 21, one surface of the annular plate-shaped member faces the side surface of the crankcase 80 to form a connecting surface. In the annular plate-shaped member constituting this connection surface, a connection point 23 connected to the crankcase 80 is formed at a number of locations in the circumferential direction thereof. A number of these connecting points 23 are scattered at positions divided into both the left and right sides of the vertical line y2 passing through the crankshaft and the upper and lower sides of the horizontal direction line z1 passing through the crankshaft. Each connection point 23 is composed of a screw hole (not shown) formed in the crankcase 80 and a bolt insertion hole 23a formed in the side connection part 21, and the side connection part ( 21) is configured to be able to be connected with bolts.

The side connection part 21 is also provided with a starter/ash mounting hole 24 and a rotation sensor mounting part 25 for detecting the rotational speed of the flywheel 83 in a part of the circumferential direction, and a starter/ash mounting. A starter ash 26 provided with a cell motor or reduction gear (not shown) is provided in the mounting hole 24 for use, and a rotation speed detection sensor 27 is provided in the rotation sensor mounting portion 25.

The detected portion 83a on the side of the flywheel 83 detected by the rotation speed detection sensor 27 is constituted by a plurality of recessed holes formed in the outer peripheral portion of the flywheel 83.

[Support]

On the upper side of the mounting bracket 20, the support 30 supporting the exhaust gas purification device 12 from the lower side will be described.

The support 30 includes a pedestal member 31 having a connection portion to the mounting bracket 20, a pedestal member 33 connected to the exhaust gas purification device 12, a pedestal member 31, and a pedestal member 33. ) Is provided with an intermediate member 32 connecting.

The pedestal member 31 is formed of a plate-shaped member that spans the pair of upper connecting portions 22 before and after the mounting bracket 20, and is longer in the front-rear direction than the distance between the pair of upper connecting portions 22 before and after the bracket 20. . This pedestal member 31 is positioned between the flywheel 83 and the exhaust gas purification device 12, and is configured to function as a partition plate portion in the form of a partition partitioning the upper and lower sides.

To the pedestal member 31, the four bolt insertion holes 31a corresponding to the four screw holes 22a formed in the upper connection portion 22 of the mounting bracket 20 and the intermediate member 32 are connected. Six bolt insertion holes 31b are formed for this purpose.

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 pedestal member 33 I'm doing it. The first intermediate member 32A is a plate-shaped portion 34 having the same length and width in the left and right directions as the pedestal member 31, and a station welded and fixed to two front and rear sides of the upper surface side of the plate-shaped portion 34. It has a U-shaped connecting rod 35.

The plate-shaped portion 34 faces the six bolt insertion holes 31b for connection with the pedestal member 31, and is the same number of bolt insertion holes at the same position as these, and a long long hole in the left and right direction ( 37) is formed. In addition, at the positions corresponding to the four bolt insertion holes 31a in the pedestal member 31, the head of the connecting bolt 31c inserted through the four bolt insertion holes 31a is held with a tool. A U-shaped cutout 34a that is open to the outside when viewed in plan view to enable operation is formed.

The long hole 37 of the plate-shaped portion 34 formed opposite to the six bolt insertion holes 31b for connection with the pedestal member 31 is connected to the pedestal member 31 with a connecting bolt 34b. The position of the plate-shaped portion 34 is horizontal and is for adjusting the position of the long hole 37 in the longitudinal direction, that is, in the left-right direction, and is configured to serve as a position adjusting mechanism.

The inverted U-shaped connecting rod 35 is a plate-shaped portion ( It is welded and fixed to the upper side of 34). This connecting table 35 is formed in two front and rear positions at a position corresponding to each of the front and rear cutouts 34a. Two connecting holes 35a for connecting the second intermediate members 32B are formed in the upper part of each connecting rod 35, and a connecting bolt 35c inserted from the upper side is at the lower surface of each connecting hole 35a. The fixing nut 35b for the is welded and fixed.

The second intermediate member 32B connected to the upper side of the connecting rod 35 is constituted by two L-shaped metal members 36 bent in an L-shape when viewed from the side along the crankshaft. This L-shaped metal member 36 is provided in two places spaced apart in the front-rear direction.

The L-shaped metal member 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 mounted so as to contact the connecting table 35. In the vertical portion 36A, an arc-shaped end edge 36Aa along the lower periphery of the exhaust gas purification device 12 is provided on the upper edge side as viewed from the front-rear direction.

In the upper portion of the vertical piece portion 36A, two vertical holes 39 for connecting and fixing the support member 33 are formed on both sides in the left-right direction. This elongated hole 39 is for adjusting the position of the support member 33 relative to the pedestal member 31 in the vertical direction and in the longitudinal direction of the elongated hole 39, that is, in the vertical direction, and serves as a position adjusting mechanism. Is configured to do.

In the horizontal part 36B, two elongated holes 38 for connection are formed at a location corresponding to the connection hole 35a formed in the connection table 35. This elongated hole 38 is for adjusting the position of the second intermediate member 32B with respect to the pedestal member 31 in the horizontal direction and in the longitudinal direction of the elongated hole 38, that is, in the front-rear direction, and a position adjustment mechanism It is structured to play a role as

The support member 33 has a connecting plate 33A connected to the longitudinal portion 36A of the L-shaped metal member 36 as the second intermediate member 32B, and an annular shape fixed to the connecting plate 33A. It is provided with the fastening band 33B. The fastening band 33B is a well-known thing configured to surround and fasten the outer circumferential portion at two locations near the front end side of the exhaust gas purification device 12 and a location spaced apart near the rear side.

A connecting bolt insertion hole 33Aa is formed in the connecting plate 33A at a location corresponding to the vertically long hole 39 formed in the vertical piece 36A of the L-shaped metal member 36. The connecting plate 33A is formed by the bolt insertion hole 33Aa and the connecting bolt 36Ab inserted through the vertical long hole 39 formed in the longitudinal portion 36A of the L-shaped metal member 36. It is configured so that the height position of the exhaust gas purification device 12 can be adjusted by adjusting the position of the upper and lower positions.

〔Thread guide board〕

15 and 16, a slide guide plate 40 is provided on the rear side of the threshing device 4 to guide the fall of the threshing discharged rice straw.

This slide guide plate 40 is located in an inclined posture of downward downward from the rear side of the threshing device 4, and when the discharged rice straw discharged from the threshing device 4 falls on the ground, It is intended to fall smoothly without being caught on the rear end, and is made of a substantially rectangular sheet metal material when viewed from the rear surface.

The slide guide plate 40 is installed in a state where the upper end is bolted to the rear part of the threshing device 4, and the lower end is mounted on the machine body frame 2 at the rear end. As shown in Fig. 15, at the lower end of the slide guide plate 40, a channel-shaped fastener 41 that can be fitted to the machine body frame 2 at the rear end is welded and fixed, and the fastener 41 is at the rear end. By fitting the negative machine body frame 2 from the upper side, the lower end side of the slide guide plate 40 is supported.

[Other Embodiment 1]

In the above embodiment, as the mounting bracket 20 of the support device 15, the lateral connection portion 21 formed by a plate-shaped member annularly surrounds the crankshaft coaxial with the rotational axis x2 of the flywheel 83. ) Has been illustrated, but is not limited thereto.

For example, as shown in Figs. 17 and 18, when viewed from the axial direction of the crankshaft, the lateral connecting portion 21 is formed in a semicircular shape so as to span the crankshaft, and the lateral connecting portion 21 is a flywheel 83 It may be configured so as to be located on the lower side of the upper end portion.

Also in this case, a number of connection points 23 in the side connection part 21 with the crankcase 80 are scattered at positions allocated to both left and right sides of the vertical line y2 passing through the crankshaft.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

(Other Embodiment 2)

In the above embodiment, as the support body 30 of the support device 15, the intermediate member 32 is composed of two types of the first intermediate member 32A and the second intermediate member 32B, but is not limited thereto. . For example, as shown in FIGS. 19 and 20, the intermediate member 32 may be formed of one type of L-shaped metal member 36.

In this structure, the pedestal member 31 is constituted by a combination of a first pedestal portion 31A connected to the mounting bracket 20 and a second pedestal portion 31B connected to the intermediate member 32. .

In the first pedestal portion 31A, the mounting bracket 20 is fixed in two directions in the vertical direction and in the left-right direction along the axial direction of the crankshaft with the connecting bolt 31c. It constitutes the bolt insertion hole 31a of. The second pedestal portion 31B is welded to the upper side of the first pedestal portion 31A, and a bolt insertion hole 31b for connecting the intermediate member 32 is formed in the plate-shaped portion of the upper portion.

With respect to this bolt insertion hole 31b, the elongated hole 38 in the front-rear direction of the horizontal part 36B of the intermediate member 32 is opposed, and it is comprised so that it can connect and fix with the connecting bolt 35c. In the vertical piece portion 36A of the intermediate member 32, an elongated hole 39 in the vertical direction is formed, and the support member 33 is configured to be installed by adjusting the vertical position.

In addition, instead of the elongated hole 38 in the front-rear direction formed in the horizontal portion 36B of the intermediate member 32, the elongated hole 37 in the left-right direction may be formed.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

(Other Embodiment 3)

In the above-described embodiment, a structure in which the elongated holes 37, 38, 39 are employed as the position adjustment mechanism is exemplified, but the present invention is not limited thereto.

For example, instead of the long holes 37, 38, 39, the exhaust gas purification device for the engine 8 is provided with a plurality of connection holes for position adjustment, although not shown, and depending on which connection hole is selected The installation position of (12) may be configured to be adjustable.

Further, a suitable position adjustment mechanism may be employed, such as using a gap adjusting plate such as a shim, or adjusting the gap using a screw and an adjusting nut.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

(Other Embodiment 4)

In the above embodiment, as a position adjustment mechanism, a structure in which the elongated holes 37, 38, 39 are used so as to adjust the position in the horizontal direction, the horizontal direction, the horizontal direction, and the vertical direction is exemplified, but limited to this. It does not become.

For example, it is possible to delete or add an arbitrary position adjustment direction, such as allowing the position to be adjusted only in one direction of the front-rear direction or the left-right direction among the horizontal directions, or allowing the position to be adjusted only in the vertical direction.

In addition, it is not limited to a structure that adjusts the position only by the support body 30, and it is also possible to adopt a structure capable of adjusting the position on the side of the mounting bracket 20.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

(Other Embodiment 5)

In the above embodiment, as a position adjustment mechanism, a structure in which 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 left-right direction, and the vertical direction is adopted. It is not limited thereto.

For example, a long hole along the horizontal direction is directed in an inclination direction along both directions in the front and rear direction and in the left and right direction, or a long hole is formed in an inclined posture along both directions in the vertical direction and the front-rear direction or in the left and right direction. It may be configured to be adjustable in position along the synthesis direction along the line.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

(Other Embodiment 6)

In the above embodiment, the flywheel 83 has a structure having only a function of a simple general flywheel 83, but is not limited thereto.

For example, although not shown, as the flywheel 83, a structure having a belt winding portion capable of winding a power transmission belt may be employed, or as shown in FIG. 20, the flywheel 83 In addition to the portion, a structure having a transmission pulley portion 84 capable of winding a belt may be employed.

In this case, since the support 30 supporting the exhaust gas purification device 12 is located between the exhaust gas purification device 12 and the flywheel 83 having a belt winding portion capable of winding a transmission belt, exhaust Even if the gas purification device 12 is installed close to the flywheel 83 side, the support 30 exerts a function of a heat shield to block heat from the exhaust gas purification device 12 at a high temperature.

For other configurations, the same configuration as in the above-described embodiment may be adopted.

The present invention can also be used in a regular type combine, a soybean harvester, or a corn harvester, in addition to the cut-off combine.

2: machine body frame
8: engine
10: Unloader
11: storage support lever (unloader support)
12: exhaust gas purification device
15: support device
20: mounting bracket
21: side connection
22: upper connection
30: support
31: partition plate (base member)
32: intermediate member
33: support member
37, 38, 39: position adjustment mechanism
80: crankcase
83: fly wheel

Claims (11)

A mowing unit located in the front of the traveling aircraft;
A driving unit located at a horizontal side of the traveling body from the rear of the harvesting unit,
A motive unit located below the driving unit and accommodating an engine,
A grain tank located at the rear of the motive part,
A threshing device provided in a state adjacent to the grain tank on the other horizontal side of the traveling body opposite to the horizontal one side,
It is a harvester equipped with an exhaust gas purification device for purifying by introducing the exhaust gas of the engine,
A support device for supporting the exhaust gas purification device is provided,
The exhaust gas purification device is disposed at a position overlapping with the threshing device when viewed from the front, protruding toward the other side from the end of the driving unit inside the gas in a left-right direction. The harvester according to claim 1, wherein the exhaust gas purification device is supported by the support device at an end portion of the engine crankshaft on the side on which the flywheel is mounted. The method of claim 2,
The support device includes a mounting bracket connected to a side surface of the crankcase on a side where the flywheel is located, and a support connected to an upper side of the mounting bracket to support the exhaust gas purification device from a lower side,
The installation bracket includes an upper connection part to which the support is connected at an upper side of the flywheel, and a side connection part connected to the crankcase below the upper connection part,
The mounting bracket, on both sides of the crankshaft, the harvester is provided with the side connection portion below the upper end portion of the flywheel. The harvester according to claim 3, wherein the mounting bracket is formed in an annular shape around the crankshaft, and includes connecting points of the lateral connecting portions at an upper side and a lower side of the crankshaft. The harvester according to claim 3, wherein the support device is disposed between the flywheel and the exhaust gas purification device, and a partition plate in the form of a partition wall partitioning the upper and lower portions is provided. The apparatus according to claim 3, wherein 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. harvest. The harvester according to claim 3, wherein the support device is provided with a position adjusting mechanism capable of adjusting an installation position of the exhaust gas purification device with respect to the engine. The method of claim 7, wherein the support includes a pedestal member having a connection portion to the mounting bracket, a pedestal member connected to the exhaust gas purification device, and an intermediate member connecting the pedestal member and the pedestal member, and the A harvester, wherein the position adjustment mechanism is provided at a connection point between the pedestal member and the intermediate member, or a connection point between the intermediate member and the pedestal member, or both connection points thereof. The position adjustment mechanism according to claim 8, wherein the position adjustment mechanism is configured to perform position adjustment in the vertical direction at one of a connection point between the pedestal member and the intermediate member, or a connection point between the intermediate member and the support member, and the other Harvester configured to perform position adjustment in the horizontal direction. The harvester according to claim 3, wherein the flywheel has a belt winding portion capable of winding a power transmission belt, and the support is configured to partition between the belt winding portion and the exhaust gas purification device. The method of claim 1, further comprising: an unloader for discharging harvests; and a storage support lever for supporting the unloader on the machine body frame at a storage position, and an upper end of the storage support lever is at a position above the exhaust gas purification device. A harvester that supports an unloader, and a lower end portion of the storage support lever crosses the exhaust gas purification device and is supported by the machine body frame below.

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