KR20170022862A - Combine - Google Patents

Abstract

The present invention provides a combine capable of reducing a labor burden in a posture change work as a posture of an engine bonnet can be changed. The combine includes: the engine bonnet (35) covering the upper part of an engine (34); an exhaust gas treating device (58) purifying exhaust gas of the engine (34); a barrel-shaped support member (38) installed to be erect on a base frame (37); and a rotation support point member (40) integrally connected to the engine bonnet (35) and extended in the vertical direction. While the rotation support point member (40) is inserted from the upper side into the support member (38), the rotation support point member (40) is supported to rotate around a vertical shaft center Y1. The engine bonnet (35) is formed in order for the posture of the engine bonnet (35) to be changed between a backward-moving posture and a protruding posture, and the exhaust gas treating device (58) is supported on the support member (38).

Description

Combine {COMBINE}

The present invention relates to a combine.

In the conventional combine, the engine bonnet is configured to be capable of changing attitude over a retracting posture in which the engine bonnet is located inside the gas and a protruding posture that protrudes transversely outward.

That is, the support for rotatably supporting the engine bonnet is erected from the base frame, the support is formed to be long in the vertical direction, and a small-diameter shaft portion is formed at the upper end. A lower end portion of the rotation support point member is rotatably fitted on a shaft portion formed on the upper portion of the support and the upper end portion of the rotation support point member is rotatably supported on a support member connected to the thruster (See, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2010-75118

In the above conventional configuration, the rotary support point member on the engine bonnet side can be stably supported on both the upper and lower sides because the upper end portion and the lower end portion are rotatably supported by each of the support members connected to the strut and the threshing device. Further, there is an advantage that it becomes possible to use a long support in the vertical direction as a support frame for supporting another apparatus provided in the driving section. However, the above-described conventional configuration has the following disadvantages, and there is still room for improvement.

A portion where the rotation support point member is fitted and supported with respect to the fixed side member (the support and the support member) may have a predetermined dimensional tolerance and a slight rattling may occur. The dimensional tolerance at the portion where the fitting is supported can not be made zero. In the above-described conventional configuration, since the length of the support point along the vertical direction of the rotation support point member, that is, the vertical distance between the upper end and the lower end, is short, the rattling caused by the dimensional tolerance at the above- The entire engine bonnet may be inclined downward when it is switched to the protruding posture. Particularly, in the case where the entire operation portion including the cabin is constructed so as to be able to change the posture integrally with the engine bonnet, there is a fear that the inclination amount becomes large.

It is necessary to rotate the engine bonnet toward the retreating posture while lifting the entire engine bonnet upward when switching the engine bonnet from the projecting posture to the retreating posture when the entire engine bonnet is tilted downward when shifting to the projecting posture, There is a disadvantage that the burden of labor is increased.

Therefore, there is a demand for a combine capable of reducing the burden on the labor when performing the posture changing operation, because the posture of the engine bonnet can be changed.

The combine according to the present invention is characterized in that,

An exhaust gas purifying apparatus comprising: an engine; an engine bonnet covering an upper portion of the engine; an exhaust gas processing device for purifying the exhaust gas of the engine; a support member formed upright from the base frame and formed in a tubular shape; And a rotation support point member extending along the up and down direction together with the rotation support point member,

Wherein the rotation support point member is rotatably supported around the vertical axis in a state where the rotation support point member is inserted into the support member from the upper side so that the engine bonnet is supported by a posture in which the engine bonnet is inwardly projected Is configured to be switchable,

And the exhaust gas processing device is supported by the support member.

According to the present invention, a tubular support member is erected on the base side from the base frame. The bonnet is provided with a rotation fulcrum member integrally connected to the engine bonnet and extending along the vertical direction. The rotation support point member is rotatably supported around the vertical axis in a state where the rotation support point member is inserted into the support member from above.

Since the rotation support point member is inserted from above into the cylindrical support member, it becomes possible to form the rotation support point member longer in the vertical direction than in the conventional one by making the insertion depth of the support member deep. . In the configuration in which each of the upper end portion and the lower end portion of the rotation support point member is rotatably supported, the interval between the upper end portion and the lower end portion of the rotation support point member is larger than that in the conventional art.

As a result, since the vertical distance between the upper end portion and the lower end portion of the rotation supporting point member rotatably supported by the fixed side member is larger than that of the conventional one, a predetermined dimensional tolerance exists at a position where the rotation supporting point member is supported with respect to the fixed side member The upper and lower intervals between the upper end portion and the lower end portion rotatably supported by the fixed side member of the rotary pivot member become longer so that the entire engine bonnet is inclined downward when shifted to the protruding posture The amount of inclination becomes small.

Further, the exhaust gas processing device is supported by effectively utilizing the support member standing up from the base frame. It is conceivable to support the exhaust gas processing device by a gas frame instead of the supporting member. However, in the configuration in which the exhaust gas processing device is supported by the gas frame in this way, .

On the other hand, according to the present invention, since the supporting member extending vertically from the base frame is effectively used to support the exhaust gas processing device, it is possible to minimize the installation space viewed from the plane.

Therefore, when the engine bonnet is switched from the protruded posture to the retracted posture while the exhaust gas processing device is supported in a state in which the space for installing the exhaust gas processing device is reduced, there is no need to lift the entire engine bonnet as large as possible, It is possible to reduce the burden on the labor force.

In the present invention, it is preferable that the bearing member of the support member is provided with a bearing portion rotatably supporting the rotation support point member while regulating the position in the axial direction.

According to this configuration, the rotation support point member inserted from above into the support member is rotatably supported and supported by the bearing portion provided in the cylinder of the support member. The bearing portion is provided inside the cylinder of the support member and can be provided at any position in the axial direction of the support member.

The insertion depth of the rotation support point member with respect to the support member is determined by the position of the bearing portion so that the insertion depth of the rotation support point member with respect to the support member can be set to an appropriate value by setting a position along the axial direction of the support member of the bearing portion .

In the present invention,

A diameter reducing portion having an inner diameter smaller than an inner diameter at an upper side portion than the position is formed at a vertically middle position in the support member,

It is preferable that the lower end portion of the rotation support point member is supported by the step portion on the upper portion of the diameter reduction portion so that the diameter reduction portion functions as the bearing portion.

According to this configuration, the lower end of the rotation support point member inserted into the support member is supported and supported by the upper step portion of the diameter reduction portion formed at the upper and lower positions in the inside of the support member. And is slidably guided by the diametrically reduced portion or a sliding portion provided in the vicinity thereof, and is rotatably supported about the vertical axis.

Therefore, the rotation support point member can be rotatably supported and supported by a simple structure in which the diameter reduction portion is formed in the support member.

In the present invention, it is preferable that the rotary shaft portion is provided so as to protrude downward from the lower end of the rotary support point member, and the sliding portion is provided between the outer peripheral portion of the rotary shaft portion and the inner peripheral portion of the diameter-

According to this configuration, the rotation shaft portion protruding downward from the lower end of the rotation support point member is fitted into the inner peripheral portion of the reduced diameter portion, and relatively slidably moves between the outer peripheral portion of the rotation shaft portion and the inner peripheral portion of the reduced diameter portion, Is rotatably supported around the vertical axis.

Therefore, by employing the inner peripheral portion of the diameter-reduced portion to advantageously guide the rotation supporting point member for sliding movement, it is possible to provide a simple configuration with a small slippery portion, which requires less labor.

In the present invention, it is preferable that the support member includes a tubular inner barrel member located radially inwardly and downwardly of the inner barrel member, and a tubular outer barrel member located radially outwardly of the inner barrel member and located on the upper side thereof, And the inner barrel member and the outer barrel member are configured to be connected to each other in a partially fitted state, the diameter-reduced portion is formed by the upper end portion of the inner barrel member, and the inner barrel member and the outer barrel member are configured to be disconnectable.

According to this configuration, the cylindrical inner barrel member and the cylindrical outer barrel member are connected to each other in such a state that the inner barrel member is positioned on the lower side and the outer barrel member is located on the upper side, and they are partially fitted.

The upper end portion of the inner barrel member is located inside the barrel of the outer barrel member. The upper end portion of the inner barrel member is formed with the reduced diameter portion and corresponds to the upper and lower intermediate position in the support member. The inner diameter of the inner barrel member is smaller than the inner diameter of the inner barrel member on the upper side than the upper end of the inner barrel member because the outer barrel member exists above the upper end portion of the inner barrel member and the inner barrel member exists below the upper end portion of the inner barrel member .

Since the inner cylinder member and the outer cylinder member can be disengaged from each other and their connection is released and the outer cylinder member is removed, the upper end portion of the inner cylinder member is opened to the outside, It is possible to easily carry out the machining work for rotatably supporting.

In the present invention, it is preferable that the exhaust gas treating apparatus is supported on the outer peripheral portion of the outer barrel member.

According to this configuration, the exhaust gas processing apparatus is supported on the outer peripheral portion of the outer cylinder member provided on the radially outer side of the support member. Since the rotation support point member is inserted into the outer cylinder member in a state where it penetrates the inside of the outer cylinder member, the exhaust gas treatment device does not affect the mounting of the rotation support point member.

Therefore, the rotary support point member can be supported in a stable state with less inclination, and the exhaust gas treatment device can be well supported.

Figure 1 is an overall side view of the combine.
2 is an overall plan view of the combine.
3 is a cross-sectional plan view of the front portion of the combine.
4 is a longitudinal rear view showing the positional relationship between the threshing device and the exhaust pipe.
5 is a right side view of the front portion of the combine.
6 is a left side view of the driving portion.
7 is a longitudinal side view showing a rotation supporting structure.
8 is a rear view of the grape tanks.
9 is a top view of the grape tanks.
10 is a perspective view of a grape tanks;
11 is a perspective view of a grape tanks.
12 is a longitudinal front view of the exhaust pipe.
13 is a perspective view of a heat shield cover;
14 is a cross-sectional plan view of the heat shield cover.

Hereinafter, a case where the embodiment of the present invention is applied to a comb separator is described with reference to the drawings.

[Overall configuration]

As shown in Figs. 1 and 2, the combine according to the present invention includes a pair of right and left crawler traveling devices 1, a preliminary mounting portion 2 are provided. A driving unit 4 whose periphery is covered by a cabin 3 is provided on the front right side of the traveling vehicle and a rear wheel of the traveling car is provided with a threshing unit 5 for performing a threshing process on the curtain cut in the pre- And a grapefruit tank 6 for storing the grains obtained by the threshing process are arranged in the transverse direction. The uncoiler 8 is provided under the operating seat 7 in the running section 4 of the running vehicle and the unloader 9 for discharging the curl stored in the curling tank 6 to the outside of the machine .

In this embodiment, when defining the forward and backward directions of the gas, the gas advancing direction in the working state is defined, and when the gas is defined in the left and right directions, the right and left are defined in the state viewed from the gas advancing direction. In other words, the direction indicated by reference symbol F in Figs. 1 and 2 is the gas front side, and the direction indicated by reference symbol B in Figs. 1 and 2 is the gas rear side. The direction indicated by the letter (L) in Fig. 2 is the left side of the body, and the direction indicated by (R) in Fig. 2 is the right side of the body.

The preloading unit 2 includes a minute hole 10 for guiding the base of the gap between the grooves to be cut, a plurality of standing devices 11 for standing the grooved grooves in a vertical posture, And a longitudinal conveying device 13 for conveying the cut curtain to the rear while gradually changing the posture from the vertical posture to the horizontal posture so as to be fed back to the threshing device 5, and the like.

The threshing device 5 feeds the bottom end of the supplied cut-out groove between the threshing feed chain 5a and the fitting supporting rail 5b and feeds the end side of the feed in the backward direction of the base, . The supply chamber 14 is formed by partitioning the horizontal wall 15, the top plate 16, the front wall 17 and the rear wall 18 on both left and right sides of the threshing device 5. A swing 19 which is rotatably supported on the front and rear wall 17 and the rear wall 18 so as to be rotatably driven around the front and rear axial centers, (See Fig. 4) and the like, and performs a skimming process on the end portion of the gap between the cut grooves by means of the ram 19 and the nets 20 to perform the threshing process.

The treated product after the threshing treatment is selected by the grain sorting and rice straw crumbs in the lower sorting section 21. [ The curved grains are carried out to the outside on the right lateral side of the threshing device 5 by the untreated feed conveyance screw (not shown), then lifted by the grain conveyor 22 and conveyed into the interior of the graining tank 6. The grapefruit tank 6 retains the grains fed from the threshing device 5. [ Thereafter, the curled papers stored in the curling tank 6 are carried out by the unloader 9 to the outside.

As shown in Fig. 4, the sorting section 21 performs separation of specific gravity while swinging the throat processing product by a shaking motion separating device (not shown), and picks up straw straw debris or the like by the selective air generated in the tuyeres 23 And is discharged to the outside through a discharge port (not shown) formed at the gas rear end of the threshing device 5. [ The tuyeres (23) are provided at positions below the gas front side of the threshing device (5). The tuyeres (23) are provided with a plurality of blade bodies (25) integrally rotatable on the outer circumferential portion of the drive shaft (24) extending along the gas transverse direction. As shown in Figs. 4 and 5, the air inlet 26 is formed in the horizontal sidewall 15 on both the left and right sides of the threshing device 5 at the location where the tuyeres 23 are provided. The tuyeres 23 are driven by the driving shaft 24 to rotate the blade body 25 so that the air sucked from the left and right air intake ports 26 is sucked into the sorting section 21 .

The threshing device 5 opens the ceiling plate 16 and the rake 19 integrally so as to integrally open upward to remove the clogged portion attached to the water pipe 20, The work can be easily performed.

2 and 4, the upper structure 27 having the front wall 17, the rear wall 18, the rake 19, the roof plate 16, Is rotatably supported on the lower frame body 29 around the front and rear axial center X located on the right side of the body (on the side of the curled tank) through the support arm 28 integrally. A hydraulic cylinder (30) is provided over the upper structure (27) and the lower frame (29). The upper structure 27 is moved close to the lower frame 29 and moved to the closed position in which the top plate 16 is closed and the upper structure 27 are moved upward and downward to move the top plate 16, (A position indicated by an imaginary line in Fig. 4) for opening and maintenance.

[Open / close structure around the operation part]

3, the operation section 4 includes a front panel 31 positioned in front of the driver's seat 7, the driver's seat 7, and a front panel 31 positioned between the front panel 31 and the driver's seat 7 A side panel 33 positioned on the inside (left side) of the vehicle with respect to the driver's seat 7, and the like. The upper portion of the operation portion 4 is covered with the cabin 3. The driver's seat 7 is supported on an engine bonnet 35 covering an upper portion of a diesel engine 34 provided in the driving portion 8. [

5, the engine bonnet 35 includes a front plate portion 35a located on the gas front side of the engine 34, a top surface portion 35b located on the gas above the engine 34, (35c) formed behind the driver's seat (7) in the state of continuing to the rear of the driver's seat (35b) and the like to form an engine room.

2 and 3, the engine bonnet 35, the front panel 31, the side panel 33, the bottom portion 32, the driver's seat 7, the cabin 3, To form an operation portion structure 36. [ As shown in Figs. 2 and 5 to 7, the driving section structure 36 is supported on the base frame 37 so as to be rotatable around the vertical axis Y1 on the left rear side of the driver's seat 7. [

Next, the rotation support structure of the operation unit structure 36 will be described in detail.

As shown in Figs. 3 and 5 to 7, a tubular support member 38 is installed upright from the base frame 37 at the left rear side portion of the operation section 4. As shown in Fig. On the other hand, a rotation supporting point member 40 extending in the vertical direction is integrally connected to the left side portion of the back surface portion of the operation unit structure 36 through the arm portion 39. The rotation support point member 40 is inserted into the support member 38 from above and is rotatably supported about the vertical axis Y1. Therefore, the operation section structure 36 is configured to be capable of changing attitude over a retracting posture in which the operation unit structure 36 is located inside the gas and a protruding posture that protrudes transversely outward.

7, the support member 38 includes an inner barrel member 41 located radially inwardly and an outer barrel member 42 located radially outwardly. The inner barrel member 41 is positioned on the lower side and the outer barrel member 42 is positioned on the upper side and the inner barrel member 41 and the outer barrel member 42 are connected to each other by bolts 43 in a state where the inner barrel member 41 and the outer barrel member 42 are partially fitted. The flange portion 45 integrally formed at the lower end of the inner barrel member 41 is fitted to the base frame 37 in the state where the lower portion of the inner barrel member 41 is fitted to the fixing pin 44 welded and fixed to the base frame 37, The inner barrel member 41 is fixed to the base frame 37. The vertical length of the outer barrel member (42) is longer than the vertical length of the inner barrel member (41).

A bearing portion 46 is provided inside the support member 38 for rotatably supporting the rotation support point member 40 while regulating the position in the axial direction. 7, a diameter-reduced portion 47 is formed by the upper end of the inner barrel member 41 inside the support member 38. As shown in Fig. The inner diameter of the lower side portion of the diameter reduction portion 47 is smaller than the inner diameter of the upper side portion than the diameter reduction portion 47.

As shown in Fig. 7, a bush 48 is provided at the inner circumferential portion of the diameter reducing portion 47 so as to slide. A rotation shaft portion 49 having a diameter smaller than the outer diameter of the rotation support point member 40 is provided in a lower end portion of the rotation support point member 40 so as to protrude downward. The lower end portion of the rotation support point member 40 is supported by the upper end surface of the inner barrel member 41 and the rotation shaft portion 49 is fitted to the bush 48 provided in the inner peripheral portion of the diameter reduction portion 47 And is supported by the support member 38 so as to be rotatable around the vertical axis Y1. The rotation shaft portion formed at the lower end of the rotation support point member 40 is fitted into the bush 48 and the lower end surface of the rotation support point member 40 is contacted with the upper end surface 41a of the inner barrel member 41, The member (40) is rotatably supported and supported by the inner barrel member (41).

The upper end portion of the inner barrel member 41 functions as the bearing portion 46 and the sliding portion 53 is provided between the rotation shaft portion 49 and the bush 48 provided in the inner peripheral portion of the diameter- ). The upper end of the rotation support point member 40 is rotatably supported around the vertical axis Y1 by a bracket 50 connected to the horizontal side wall 15 of the threshing device 5. [

The inner barrel member 41 and the outer barrel member 42 are connected by bolts along a radial direction at a plurality of positions spaced apart in the circumferential direction at positions where they are fitted. The inner barrel member 41 and the outer barrel member 42 can be separated from each other. The connection between the inner barrel member 41 and the outer barrel member 42 is released and the outer barrel member 42 is removed from the inner barrel member 41 so that the upper end of the inner barrel member 41 is open to the outside. Thus, the bush 48 can be easily exchanged in a state in which the upper end of the inner barrel member 41 is open to the outside.

With this arrangement, the operation unit structure 36 is supported on the support member 38 so as to be rotatable about the vertical axis Y1 through the rotation support point member 40. [ The operation unit structure 36 having the engine bonnet 35 is supported on the base frame 37 so as to be rotatable about the vertical axis Y1 and as shown by the solid line in Figure 2, As shown by a retracting posture located on the inside of the gas so as to cover the upper portion of the earthen portion 8 and a chain double-dashed line of Fig. 2, the posture can be switched over a protruding posture protruding outwardly Do. Since the upper portion of the driving portion 8 is largely opened by switching the operating portion structure 36 to the protruding posture, the maintenance operation of the driving portion 8 becomes easy.

[Grain tanks]

As shown in Fig. 8, the bottom of the grapefruit tank 6 is formed into a shape that becomes narrower toward the lower side of the substantially V-shape as viewed from the front. At the lowermost end of the grapefruit tank 6, And a conveying screw 51 for conveying the sheet to the outside. The curled papers conveyed to the outside on the back side of the base by the conveying screw 51 are conveyed by the unloader 9 (see Figs. 1 and 2) and discharged to the outside of the base.

1, the unloader 9 includes a vertical conveying screw conveyor 9A vertically conveying and conveying the curled grains conveyed by the conveying screw 51 upward, and a vertical conveying screw conveyor 9A And a transverse conveying screw conveyor 9B for transversely conveying the curled grains to the outlet 52 at the front end.

As shown in Fig. 10, the grape tanks 6 are formed in a shape that becomes narrower as seen from the front side of the base, and at the front side of the base in the bottom slope 6a having a shape becoming narrower downward, And the first recessed portion Q1 is formed in a substantially rhombic shape when viewed from the front side of the base body. The first concave portion Q1 has an inner longitudinal surface 6b in an attitude along the longitudinal direction and an attitude along the forward and backward direction, a rear longitudinal surface 6c in an attitude along the longitudinal direction and in a posture along the lateral direction, And is a recessed portion surrounded by respective surfaces of the upper surface 6d located on the upper side.

11, on the upper side of the first recessed portion Q1, a front left side face 6e of the attitude along the longitudinal direction positioned in the state of being close to the right side wall 15 of the threshing device 5, An upper inclined surface 6f extending upward from the upper end of the front left surface 6e toward the upper side of the tilting apparatus 5 and a lower surface 6f extending upward from the upper end of the upper inclined surface 6f, A bulged portion 6A formed by the extending side surface 6g of the posture along the direction, the front side surface 6h located on the front side and the rear side surface 6i located on the rear side are formed . As described above, the swollen portion 6A that expands upward toward the upward direction of the threshing device 5 is formed, thereby increasing the amount of grained storage.

As shown in Figs. 10 and 11, a second recessed portion Q2 is formed, which is located on the rear side of the base of the first recessed portion Q1 and is positioned higher on the rear side of the base. The second recessed portion Q2 has an inner longitudinal surface 6k formed so as to enter the inside of the tank from the right vertical surface 6j formed in the longitudinal direction from the upper end of the bottom inclined surface 6a, And is formed in a groove shape surrounded by the bottom surface 61 of the inclined posture and the respective surfaces of the upper surface 6m of the oblique posture located above the gas rear portion side. The second incision portion Q2 is disposed in a state in which an exhaust pipe 75 described later is inserted.

A third recessed portion Q3 extending along the vertical direction and continuing to the gas rear side of the second recessed portion Q2 is formed. The third recessed portion Q3 is formed in a state in which it is long in the vertical direction from the bottom inclined surface 6a to the upper end portion of the tank in the right side portion of the grapefruit tank 6 and in the state of intruding inside the tank (right side of the base). The third concave portion Q3 is formed by a rear face 6i of the bulged portion 6A and a rear face side vertical face 6n which is located on the rear side and which is located on the gas rear side closer to the left side of the base, Is formed so as to be surrounded by the narrow vertical side surface 6o. The third concave portion Q3 is arranged in a state in which the grain conveyor 22 is inserted.

And extends to the rear side of the third recessed portion Q3 in the state where the lower side portion at the corner between the longitudinal side 6n of the rear side of the third concave portion Q3 and the left side 6p of the rear side is cut away And a fourth recessed portion Q4 of a roughly rhombic shape (see Fig. 9) in plan view. The fourth recessed portion Q4 is formed by an inner longitudinal surface 6q in the longitudinal direction posture and a forward and backward posture and an inclined posture 6q in the longitudinal direction posture and located on the gas front side from the front end portion of the inner longitudinal surface 6q, Side vertical surface 6r of the lower inclined surface 6a and the upper surface 6s of the inclined posture which is substantially parallel to the lower inclined surface 6a. The fourth recessed portion Q4 is provided with a state in which a No. 2 reducing device (not shown) for reducing the processed material, such as rice, with branches from the sorting portion of the threshing device 5, .

A fifth recessed portion Q5 for allowing passage of a discharged straw pod (not shown) is formed at a rear left portion of the curling tank 6. As shown in Fig. 11, has inclined surfaces 6u in an oblique posture located on the right side of the base in the rear of the base body, over the left side surface 6p on the rear side and the rear side surface 6t on the rear side , And a fifth concave portion Q5 are formed.

The front side left side face 6e and the left side face 6p on the rear side are formed at substantially the same position in the left and right direction of the base body and the extended side face 6g of the bulged portion 6A is formed on the front left side face 6e. And the left side face 6p on the rear side. The inner longitudinal face 6k of the second recessed portion Q2 and the internal longitudinal face 6q of the fourth recessed portion Q4 are formed at substantially the same position in the gas horizontal direction.

2, the graining tank 6 is supported by the base frame 37 so as to be rotatable around the vertical axis Y2, which is the axis of rotation of the vertical conveying screw conveyor 9A, (A state shown by a solid line in Fig. 2) and a protruding posture (a state shown by a chain double-dashed line in Fig. 2) protruding outward in the gas transverse direction. When the operation unit structure 36 is to be switched to the projecting posture, it is necessary to switch the graining tank 6 to the projecting posture in advance.

[Origin]

3 and 5, the driving unit 8 includes an engine 34, an air cleaner 54, a radiator 55 for cooling the engine, a cooling fan 56, and the like. 1 and 2, the air cleaner 54 is provided in the air supply chamber forming portion 35c of the engine bonnet 35. The air cleaner 54 is provided on the rear right side of the roof portion of the cabin 3 . As shown in Figs. 3, 5 and 6, a first exhaust gas treatment device 57 for reducing particulate matter contained in the exhaust gas of the engine 34, and a second exhaust gas treatment device And a second exhaust gas processing device 58 (equivalent to an exhaust gas processing operation in the present invention) for reducing the nitrogen oxide contained in the exhaust gas after being processed in the exhaust gas processing device 57.

The first exhaust gas treatment device 57 includes a diesel particulate matter collection filter (DPF) (not shown), which is a known technique for collecting diesel particulates contained in the exhaust gas, and reduces the diesel particulates by passing the exhaust gas.

The second exhaust gas treatment device 58 performs purification treatment of the exhaust gas by using a known selective catalytic reduction (SCR). Specifically, the number of one example of components of the reducing agent injected in the exhaust gas by hydrolysis produced ammonia, and by chemical reaction of nitrogen oxides (NOx) contained in the ammonia (NH ₃₎ with the exhaust gas, nitrogen (N ₂ ) And water (H ₂ O), thereby reducing the nitrogen oxide contained in the exhaust gas.

As shown in FIGS. 3 and 6, the first exhaust gas treatment device 57 is disposed inside the engine bonnet 35. That is, in a state in which the longitudinal direction is along the forward and backward directions of the gas, the gas is supplied to the lower side of the side panel 33 and to the inner side in the gas widthwise direction at the upper portion of the engine 34, Respectively. The first exhaust gas treatment device 57 is connected to and supported by the engine 34 by a pair of support portions 59 on both sides of the gas.

6, an exhaust gas inlet port 61 is provided at a lower portion of the first exhaust gas processing device 57 below the gas front portion side, and an exhaust gas inlet port 61 is connected to the engine 34, And is connected to the exhaust pipe 63 on the exhaust side. As shown in Fig. 3, an exhaust gas outlet portion 62 is provided at the right side portion of the first exhaust gas processing device 57 on the rear side of the base body.

3 and 6, the second exhaust gas treatment device 58 is provided outside the engine bonnet 35 and in a state of being located on the gas rear side of the operation part 4 in plan view . The second exhaust gas treatment device 58 is disposed below the front portion of the grapefruit tank 6 and overlaps with the grapefruit tank 6 in plan view.

As described above, the curling tanks 6 are formed in a shape that becomes narrower from the front as viewed from the front, and also has a bottom inclined surface 6a having a shape becoming narrower as it goes below the first inclined surface 6a. Q1 are formed. As shown in Fig. 8, the second exhaust gas processing device 58 is arranged so as to enter the first recessed portion Q1.

5 and 6, the second exhaust gas treatment device 58 includes a cylindrical dousing part 64 to which urea water is injected and supplied to the exhaust gas supplied from the first exhaust gas treatment device 57, And a main body treatment section 65 which is cylindrical in shape and has a diameter larger than that of the dosing section 64, and performs reduction treatment. The dosing portion 64 and the main processing portion 65 are integrally connected to each other in the lower portion so that the exhaust gas to which the urea water is injected and supplied from the dosing portion 64 is supplied to the main processing portion 65. The cylindrical dousing part 64 and the main body treatment part 65 are respectively elongated along the direction along the central axis of the cylindrical shape.

The main body treatment section 65 is disposed in a posture in which the direction along the central axis of the cylindrical shape is along the gas vertical direction. The cylindrical dousing part 64 is positioned on the right side of the body with respect to the main body treatment part 65 and is arranged in parallel with the main body treatment part 65 so that the direction along the central axis of the cylindrical shape is in a position Respectively.

Therefore, the second exhaust gas treatment device 58 is disposed in the vertical arrangement posture in the direction along the central axis of the cylindrical shape of the cylindrical body treatment portion 65 and the dosing portion 64, that is, the longitudinal direction is along the vertical direction have.

3 and 6, the second exhaust gas processing device 58 is capable of rotating the operation unit structure 36 by the connection supporting portion 66 on the upper side and the connection supporting portion 67 on the lower side, And is supported by the outer cylinder member 42 of the support member 38 that supports the outer cylinder member. That is, an L-shaped connecting bracket 68 is integrally fixed to the outer peripheral portion of the outer barrel member 42 in each of the upper side connecting support portion 66 and the lower side connecting supporting portion 67 . A transverse support body 69 is fixed to the outer peripheral portion of the main body treatment portion 65 of the second exhaust gas treatment device 58 at positions corresponding to the connection brackets 68 on both the upper and lower sides. The second exhaust gas treatment device 58 is supported on the outer cylinder member 42 by bolting the horizontal support members 69 on the upper and lower sides to the connection brackets 68 on both the upper and lower sides.

As shown in Fig. 3, an exhaust gas outlet portion 62 is formed on the right side of the base of the first exhaust gas processing device 57 on the rear side of the base body (outside the base side in the width direction). 3 and 5, in the second exhaust gas processing device 58, an exhaust gas supply part 70 (see FIG. 7) is provided on the upper side portion of the dosing part 64 located on the right side of the body with respect to the main body treatment part 65 Is formed.

The exhaust gas outlet portion 62 of the first exhaust gas treatment device 57 and the exhaust gas supply portion 70 of the second exhaust gas treatment device 58 are connected to each other through a communication connection pipe (71). The communication connecting pipe 71 is flanged to the exhaust gas outlet portion 62 of the first exhaust gas treatment device 57 and flanged to the exhaust gas supply portion 70 of the second exhaust gas treatment device 58 .

The communication connection pipe 71 is provided with a flexible bellows pipe 71A, and is configured to be capable of bending deformation. The provision of the bellows pipe 71A prevents the vibration of the engine 34 supported by the base frame 37 through the rubber mount from being transmitted to the second exhaust gas treatment device 58, So that the apparatus 58 is supported in a stable state.

3 and 5, the urea water tank 72 for storing urea water as a reducing agent to be supplied to the second exhaust gas treatment device 58 is disposed below the bottom part 32 of the operation part 4 Respectively. The urea water tank 72 is supported by the base frame 37. The urea water in the urea water tank 72 is supplied to the second exhaust gas treatment device 58 via a pipe by a pump. In addition, the number of remaining unsprayed elements is returned to the urea water tank 72.

As shown in Fig. 6, an exhaust gas outflow pipe 73 is provided on the upper side of the main body treatment portion 65 of the second exhaust gas treatment device 58 and on the rear side of the base. The exhaust gas outflow pipe 73 includes a base end side portion 73a extending horizontally or substantially horizontally from the exhaust gas outlet portion 74 of the second exhaust gas treatment device 58 toward the gas rear side, And a bent tip side portion 73b that extends from the rear end side of the base body in the upward direction of the base body. There is provided an exhaust pipe 75 for exhausting the exhaust gas that has been processed in the first exhaust gas processing device 57 and the second exhaust gas processing device 58 and discharged through the exhaust gas outlet pipe 73 . The exhaust pipe 75 will be described later.

[Heat shield cover]

As shown in Figs. 3, 6, 8, 13, and 14, the second exhaust gas treatment device 58 is located between the grapefruit tank 6 and the second exhaust gas treatment device 58, A heat shield cover 76 is provided to shield the heat exchanger. The heat shield cover 76 covers a portion corresponding to each of the periphery of the second exhaust gas treatment device 58, the upper side portion, the portion corresponding to the opposite side of the threshing device 5, and the rear side portion Is installed. The heat shield cover 76 is provided so as to face each of the inner longitudinal surface 6b, the rear longitudinal surface 6c, and the top surface 6d of the first recessed portion Q1 of the curling tank 6 And is disposed so as to cover the portion.

The upper surface 6d of the first recessed portion Q1 of the curling tank 6 is formed in an inclined posture substantially parallel to the bottom inclined surface 6a. That is, the upper side surface 6d is formed in an inclined posture in which the end portion of the gas right side (opposite to the threshing device) leading to the inner longitudinal surface 6b is at the lowest position and becomes higher toward the left side .

13, an upper surface 77, which covers a portion opposed to the upper side surface 6d of the curling tank 6 in the heat shield cover 76, is formed on the upper surface 6d of the curling tank 6 In the inclined posture so as to become higher toward the threshing device 5 side. By setting the upper surface 77 in the inclined posture as described above, the space above the second exhaust gas processing device 58 can be widened, and the heat generated in the second exhaust gas processing device 58 can be transferred into the narrow space It is prevented from being filled, and heat is easily emitted.

The upper surface 77 of the differential cover 76 in the inclined posture is divided into a base end side portion 77a and an extending side portion 77b following the base end side portion 77a. The proximal side portion 77a has an inner side surface 78 opposed to the inner longitudinal surface 6b of the grapefruit tank 6 and a rear side surface 79 opposed to the rear side longitudinal surface 6c of the grapefruit tank 6 And are integrally formed together. The extended portion 77b of the upper surface 77 is fixed by connecting a plurality of portions of the lower end portion to the proximal portion side portion 77a of the upper surface 77 with a bolt. By releasing the bolt connection, the extended side portion 77b can be removed.

13 and 14, the rear side surface 79 of the heat shield cover 76, which covers the portion opposed to the rear side longitudinal surface 6c of the corrugated tank 6, has a rear vertical surface 6c, A transversely extending mounting surface portion 79b along the transverse direction of the base body and a transversely extending mounting surface portion 79b between the transversely extending mounting surface portion 79b and the extended portion 77b of the upper surface 77 Side extending surface portion 79c and covers a portion opposed to the longitudinal side surface 6c on the rear side of the grapefruit tank 6 substantially entirely. An insertion penetration portion 80 through which the exhaust gas outflow pipe 73 is inserted is formed at an upper side portion of the transversely extending mounting surface portion 79b. The upper side extension surface portion 79c is provided with a porous member 81 as a vent portion. The porous member 81 is formed as a mesh. The porous member 81 is not limited to a net, but may be a porous plate or the like formed by piercing a plurality of holes.

An inner side surface 78 (corresponding to a side opposite to the side of the threshing device 5) of the heat shield cover 76 that covers a portion opposed to the inner longitudinal surface 6b of the curling tank 6 is provided with a porous A member 82 is provided. The porous member 82 is formed as a mesh. The porous member 82 is not limited to a net, but may be a porous plate or the like formed by piercing a plurality of holes.

On the lower side of the front side of the base of the inner side surface 78, there is formed a recessed portion 83 which faces toward the threshing device 5 side. By forming the recessed portion 83, a working space for inserting the hand into the cylindrical portion 8 is ensured in a state in which the grapefruit tank 6 is switched to the projecting posture.

As shown in Fig. 14, the gas left lateral position facing the threshing device 5 in the periphery of the second exhaust gas processing device 58 is not covered with the heat shield cover 76, but is open. This opened position is overlapped with the intake port 26 of the selective air flow of the tuyeres 23 in the threshing device 5 as viewed from the side. The air surrounding the second exhaust gas processing device 58 is sucked together when the outside air is sucked through the inlet port 26 by rotating the tuyeres 23.

The air around the second exhaust gas processing device 58 is at a high temperature due to heat generated in the second exhaust gas processing device 58. During the cutting operation in which the tuyere 23 is operating, such high temperature air is sucked by the tuyere 23, passed through the threshing device 5, and then discharged to the outside of the machine. At this time, as air around the second exhaust gas treatment device 58 is sucked by the tuyeres 23, the air in the driving portion 8 is also sucked. Further, since the outside low-temperature air is sucked through the porous member 82 of the inner side surface 78, the temperature of the air around the second exhaust gas treating device 58 is lowered.

Air in the vicinity of the second exhaust gas processing device 58 is not sucked by the tuyeres 23 in the state in which the tuyeres 23 are not operated as in the running of the road, 58 are discharged to the outside through the porous member 82 of the inner side surface 78, so that the narrow space inside the heat shield cover 76 is not filled with heat.

The heat shield cover 76 is fixed and supported by a plurality of bolts fixed to a support member (not shown) on the gas side. When the curling tank 6 is switched to the protruding position, the heat shield cover 76 remains on the gas side. The portion of the upper side surface 77 of the heat shield cover 76 that is located on the extended side portion 77b of the upper side surface 77 of the heat shield cover 76 can be easily removed by changing the operation unit structure 36 to the projecting posture, And the upper side extension surface portion 79c are removed. Thereby preventing the operation section structure 36 from interfering with the heat shield cover 76 along with the rotation. The upper side extension surface portion 79c is integrally connected to the extending side portion 77b of the upper surface 77, so that the handling is easy.

As described above, the heat shield cover 76 is provided in a state of being spaced apart from and between the second exhaust gas treatment device 58 and the grapefruit tank 6, and a heat insulating layer is formed by the air, So that the heat from the treatment device 58 is hardly transferred to the grainy tank 6. [

The gas front side portion facing the driving portion 8 of the second exhaust gas processing device 58 is in an open state without being covered with the heat shield cover 76. [ The communication connection pipe 71 for connecting the first exhaust gas processing device 57 and the second exhaust gas processing device 58 provided in the driving portion 8 is preferably disposed so as not to interfere with the heat shield cover 76 .

〔vent pipe〕

The exhaust pipe 75 extends upward between the threshing device 5 and the grapefruit tank 6 such that the exhaust port 84 is positioned above the upper end of the threshing device 5. An exhaust port 84 is formed at the upper end of the exhaust pipe 75 and the upper end of the exhaust pipe 75 is extended toward the threshing device 5.

4 and 12, the exhaust pipe 75 includes a first exhaust pipe 75A as a vertically extending pipe located at the side of the second exhaust gas processing device 58, and a second exhaust pipe 75B located at the exhaust port 84 side And a second exhaust pipe 75B as an upper end portion of the exhaust pipe 75. [ The first exhaust pipe 75A extends from the portion corresponding to the exhaust gas outlet portion 74 of the second exhaust gas processing device 58 in the upward and downward inclined posture along the vertical direction. The second exhaust pipe 75B is curved with respect to the first exhaust pipe 75A and extends toward the thrasher.

The first exhaust pipe 75A extends from the outlet of the exhaust gas outlet pipe 73 to a position corresponding to the upper end of the threshing device 5. [ 12, the first exhaust pipe 75A has a double pipe structure of a cylindrical inner pipe 85 located inside and a cylindrical outer pipe 86 located outside the first exhaust pipe 75A And a substantially U-shaped cover member 87 which covers the second recessed portion Q2 side of the curling tank 6 in the outer tube 86. As shown in Fig. In this way, the heat of the exhaust gas flowing through the inside of the inner pipe 85 is prevented from being transmitted to the outside.

The inner tube 85 is fixed to the outer tube 86 while being inserted into the outer tube 86 and protrudes from the end of the outer tube 86 toward the upper side. The gas pipe front side portion of the outer pipe 86 is supported on the right side wall of the threshing device 5 through the mounting bracket 88. [ A portion of the outer tube 86 on the rear side of the base is supported by a connecting member 89 for supporting the grain conveyor 22 on the right side wall of the threshing device 5. The cover member 87 is fixed by a bolt connection to a mounting bracket 90 provided on the outer tube 86.

12, the second exhaust pipe 75B is provided at a larger diameter than the inner pipe 85 of the first exhaust pipe 75A, and the upper portion of the second exhaust pipe 75B in the exhaust flow direction, The lower portions of the exhaust ports 85 in the exhaust flow direction overlap along the exhaust flow direction and a gap is formed between them in the radial direction. The exhaust gas can be cooled by sucking the outside air into the space from the gap by the ejector action accompanying the flow of the exhaust gas.

An exhaust port is formed in the second exhaust pipe 75B and the second exhaust pipe 75B is curved with respect to the first exhaust pipe 75A and is directed toward the threshing device 5 side. The second exhaust pipe 75B is constituted by a cylindrical body having a substantially circular cross section and is formed into a curved shape so as to bend in a substantially arc shape toward the threshing device 5 toward the upper side as viewed in the gas longitudinal direction, As shown in Fig. An exhaust port 84 is formed in the end surface of the distal end of the second exhaust pipe 75B. The exhaust port 84 is formed in such a shape that the upper rim thereof protrudes to the left side of the gravel tank 6 from the lower rim, that is, to the left side of the base. The exhaust port 84 is formed in a linear shape when viewed in the forward and backward directions with the cylindrical body in an inclined posture in which the upper side is located on the outer side than the lower side.

4, the exhaust port 84 of the second exhaust pipe 75B is connected to the lower edge of the exhaust port 84 so as to allow the upper structure 27 of the threshing device 5 to swing to the open position, Is formed in an oblique shape that is retreated toward the curled tank (6) side than the upper edge.

The front end of the exhaust pipe 75 is positioned below the horizontal conveying screw conveyor 9B of the unloader 9 in the storage position and the exhaust pipe 75 is located at a lower position than the upper end of the curling tank 6. Further, have. Therefore, there is no possibility that the exhaust pipe 75 interferes with the transverse conveying screw conveyor 9B even when the transverse conveying screw conveyor 9B is accommodated in the receiving position, .

The exhaust gas discharged from the engine 34 is subjected to a purification treatment for reducing diesel particulates in the first exhaust gas treatment device 57 and the nitrogen oxide contained in the exhaust gas in the second exhaust gas treatment device 58 The exhaust gas that has undergone the purification treatment is discharged to the outside of the gas through the exhaust pipe 75. [

[Other Embodiments]

(1) In the above embodiment, the support member includes the cylindrical inner barrel member and the cylindrical outer barrel member. However, instead of this configuration, And a diameter-reduced portion may be formed.

(2) In the above embodiment, the rotation support point member is supported and supported by the step portion on the upper side of the diameter reduction portion inside the support member. However, instead of this configuration, a dedicated bearing member Or may be provided separately.

(3) In the above embodiment, the rotation shaft portion 49 is provided so as to protrude downward from the lower end portion of the rotation support point member 40, and between the outer peripheral portion of the rotation shaft portion 49 and the inner peripheral portion of the diameter reduction portion 47 The lower end of the rotation support point member is flat, the rotation support point member is supported by the step of the diameter reduction portion, and the inner peripheral portion of the outer cylinder member is rotated And a sliding portion may be provided between the outer peripheral portions of the supporting point members.

(4) In the above-described embodiment, the exhaust gas processing device is provided with the second exhaust gas processing device 58 for reducing the nitrogen oxide contained in the exhaust gas. However, the second exhaust gas processing device 58 included in the exhaust gas of the engine 34 It may be a first exhaust gas treatment device 57 for reducing particulate matter, or may be another kind of exhaust gas treatment device.

(5) In the above embodiment, the present invention is applied to the self-deactivating combine, but the present invention is also applicable to the normal-type combine.

The present invention can be applied to a combine structure in which the engine bonnet is configured to be capable of changing attitude over a retracting posture in which the engine bonnet is positioned inside the gas and a protruding posture that protrudes transversely outward.

34: engine
35: engine bonnet
37: airframe frame
38: Support member
40: rotation pivot member
41:
41a:
42:
46:
47:
49:
53:
58: Second exhaust gas treatment device (exhaust gas treatment device)
Y1: Up and down axis

Claims (6)

An exhaust gas purifying apparatus comprising: an engine; an engine bonnet covering an upper portion of the engine; an exhaust gas processing device for purifying the exhaust gas of the engine; a support member formed upright from the base frame and formed into a tubular shape; And a rotation support point member extending along the up and down direction together with the rotation support point member,
Wherein the rotation support point member is rotatably supported around the vertical axis in a state where the rotation support point member is inserted into the support member from the upper side so that the engine bonnet is supported by a posture in which the engine bonnet is inwardly projected Is configured to be switchable,
And the exhaust gas treatment device is supported by the support member. The method according to claim 1,
And a bearing portion for supporting and supporting the rotation support point member in a rotatable manner while regulating a position in the axial direction is provided in the cylinder of the support member. 3. The method of claim 2,
A diameter reducing portion having an inner diameter smaller than an inner diameter at an upper side portion than the position is formed at a vertically middle position in the support member,
And a lower end of the rotation support point member is supported by a step portion on an upper portion of the diameter reduction portion so that the diameter reduction portion functions as the bearing portion. The method of claim 3,
A rotary shaft portion is provided so as to protrude downward from a lower end of the rotation support point member,
And a sliding portion is provided between an outer peripheral portion of the rotary shaft portion and an inner peripheral portion of the reduced diameter portion. The method according to claim 3 or 4,
Wherein the support member includes a tubular inner barrel member which is radially inward and located on the lower side and a tubular outer barrel member which is located radially outward and on the upper side of the inner barrel member, Connected,
Wherein the inner diameter portion is formed by the upper end portion of the inner barrel member and the inner barrel member and the outer barrel member are configured to be disconnectable. 6. The method of claim 5,
Wherein the exhaust gas processing device is supported by an outer peripheral portion of the outer barrel member.

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