JP6294082B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a diesel engine, and more particularly to a combine that purifies exhaust gas discharged from the diesel engine with a diesel particulate filter.

  In general, exhaust gas discharged from a diesel engine contains particulate matter mainly composed of black smoke, and a diesel particulate filter (hereinafter referred to as DPF) that removes the particulate matter from the exhaust gas is known. ing. Conventionally, there has been proposed a combine in which an engine and a radiator are disposed on the right side of the combine, a DPF is disposed at a lower rear position of the radiator, and a front and rear and an upper side of the engine, the radiator and the DPF are covered with a driving box (patent) Reference 1).

JP 2011-230522 A

  However, the thing of the said patent document 1 has arrange | positioned DPF in the rear part of an engine and a radiator, and the proximity of a radiator. Normally, when a radiator is arranged on the right side of the engine, an oil cooler, an air conditioner condenser, these pipes and the like are arranged close to the radiator, and there is no space. In addition, it is not preferable from the viewpoint of safety that the high-temperature DPF is disposed close to the openable side cover on the side of the machine body.

  Then, this invention aims at providing the combine which has arrange | positioned DPF using the empty space of not only an engine room but a threshing part, and solved the subject mentioned above.

The present invention is mounted on the machine frame (21), an engine (E) to be stored in the engine room (11), is mounted on the machine frame (21) exhaust gas is discharged from the engine (E) In the combine (1) provided with the particulate matter removing device (27) for removing the particulate matter contained in the gas and the threshing unit (7) for threshing the culm cut by the pretreatment unit,
A plurality of frame members (31, 32, 33) erected from the body frame (21) so as to surround the engine room (11);
An air cleaner room cover (35) supported by the plurality of frame members (31, 32, 33) and covering an air cleaner room (12) disposed above the engine room (11),
The plurality of frame members (31, 32, 33) are disposed on the rear side of the body of the engine (E) and have support columns (32) for supporting the rear side of the air cleaner room cover (35).
The particulate matter removing device (27) is disposed so as to overlap the engine room (11) and the threshing portion (7) in a plan view and in proximity to the support column (32) .
It is characterized by that.

For example, referring to FIG. 2, the threshing unit (7) includes a handling drum that is rotatably supported in a handling chamber, and a tang fan (52) that raises a sorting wind that wind-sorts the sorting material leaked from the handling chamber. ), A drive pulley (55) provided on a rotating shaft (53) of the tang fan (52), and the drive pulley (55) so as to at least partially overlap the air cleaner room (12) in the height direction. ) And a driven pulley (57) that can be transmitted to the handle cylinder and a drive belt (60) wound around the drive pulley (55) and the driven pulley (57) ,
The particulate matter removing device (27) is disposed below the transmission belt (60) so as to partially overlap the transmission belt (60) in plan view.

For example, referring to FIGS. 2 and 6, a radiator (24) disposed on the opposite side of the threshing portion (7) of the engine (E) and a cooling fan (25) for cooling the radiator (24),
A connection pipe (29) for connecting the engine (E) and the particulate matter removing device (27),
The connection portion (34) to which the connection pipe (29) and the particulate matter removing device (27) are connected is an end portion on the opposite side of the threshing portion (7) of the particulate matter removing device (27) ( 27a) and they are arranged in a body behind the cooling fan (25).

For example, referring to FIG. 4, the connection pipe (29) passes through the opposite side of the support (32) from the engine (E) and is stored in the engine room (11).

  In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not limit the structure of this invention at all.

Since the particulate matter removing device is arranged so as to overlap the engine room and the threshing part in a plan view, the present invention according to claim 1 is made compact by effectively utilizing the empty space in the engine room and the threshing part. A particulate matter removal device can be arranged. In addition, since the particulate matter removing device is arranged at a predetermined distance from the engine room door, it is possible to prevent the operator from touching the DPF that becomes high temperature accidentally and improve safety. In addition, since the particulate matter removing device is arranged in the vicinity of the support supporting the air cleaner room cover, for example, the support can be used for the wiring of sensors necessary for the particulate matter removing device. It can be improved.

  In the present invention according to claim 2, since the particulate matter removing device is disposed below the transmission belt which is a part of the threshing portion, the particulate matter removal can be performed in a compact manner using an empty space below the transmission belt. A device can be arranged.

Since this invention which concerns on Claim 3 has arrange | positioned the connection part in the edge part of the particulate matter removal apparatus which left | separated from the threshing part, it prevents that the sawdust generated in a threshing part accumulates in this connection part, The malfunction of the particulate matter removing device due to sawdust can be prevented. Moreover, since the connection part is arrange | positioned at the back of the body of a cooling fan, the cooling air blew up by the cooling fan blows on the vicinity of a connection part, and accumulation of soot can be prevented.

According to the fourth aspect of the present invention, since the connection pipe is stored in the engine room, the exhaust gas in the connection pipe can be kept at a high temperature and the performance of the particulate matter removing device can be prevented from being deteriorated. Moreover, since the connecting pipe passes through the side opposite to the engine of the support column , when the particulate matter removing device is maintained, the particulate matter removing device can be easily removed as a unit, and the maintainability can be improved. .

The whole side view which shows the combine which concerns on embodiment of this invention. The top view which shows a body frame and an engine room. The side view which shows an engine room and a Chinese fan. The left perspective view which shows an engine room and DPF. The left perspective view which covered the engine room and DPF with the cover, respectively. The right perspective view which covered the left end part of DPF with the DPF cover. The bottom view which shows the space | gap of DPF and a DPF cover. The right view which shows DPF, a DPF cover, and a connection pipe. The right view which shows the state which removed the rear side pipe from DPF.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the combine 1 has a machine body 3 supported by a traveling apparatus 2 that is a pair of left and right crawler-type traveling apparatuses. A pre-processing unit 5 is provided to be movable up and down. A cabin 6 on which a worker performs driving operations is provided on one side forward of the machine body 3 (right side of the machine body), and is cut and transported by the pre-processing unit 5 on the other side (left side of the machine body). A threshing unit 7 (see FIG. 2) is provided for threshing and sorting the cereal grains. A grain tank 9 for storing the grains threshed and sorted by the threshing unit 7 is disposed behind the cabin 6, and stored in the grain tank 9 behind the grain tank 9. A discharge auger 10 is provided for discharging the grain out of the machine.

  An engine room 11 in which an engine E (see FIG. 2) made of a diesel engine is stored is disposed below the driver seat (not shown) in the cabin 6, and above the engine room 11. An air cleaner room 12 in which an air cleaner (not shown) is accommodated is provided. The engine room 11 and the air cleaner room 12 are separated by a partition wall 13 so that cooling air described later does not travel between the engine room 11 and the air cleaner room 12. .

  In the engine room 11, an intake port 16 is opened on the right side surface of the airframe 3 where the door 15 of the cabin 6 is provided. The intake port 16 has an engine having a dustproof net formed in a net shape. A room door 17 is attached to be freely opened and closed. Similarly, in the air cleaner room 12, an air inlet 19 is opened on the right side surface, and an air cleaner room door 20 having a dustproof net formed in a net shape is attached to the air inlet 19 so as to be freely opened and closed. The engine room door 17 and the air cleaner room door 20 are configured so that foreign matter such as sawdust is prevented from entering the engine room 11 and the air cleaner room 12 and cooling air can be sucked into the interior thereof.

  On the other hand, as shown in FIGS. 2 and 3, the threshing unit 7 is configured by being divided into an upper handling chamber (not shown) and a lower sorting chamber 50. Then, the sorted matter threshed by a handling cylinder (not shown) that is supported by rotation leaks into the sorting chamber 50. In the sorting chamber 50, the sorted product is subjected to swing sorting and wind-sorted by a tang fan 52 that generates a sorting wind. The power transmission to the threshing unit 7 is first transmitted from the engine E to the rotary shaft 53 of the tang fan 52. A drive pulley 55 fixed to the right end of the rotary shaft 53 and a driven pulley 57 fixed to the intermediate shaft 56 are wound around a transmission belt 60 that is in tension by a tension pulley 59. The rotation is transmitted from the rotation shaft 53 to the intermediate shaft 56. The rotation of the intermediate shaft 56 is transmitted to the shaft 51 of the handling cylinder through a transmission mechanism 61 including a shaft, a pulley, a belt, and a bevel gear.

  The engine E is mounted on the body frame 21 via a vibration isolating rubber 22 and an engine mount 23, and a radiator 24 that cools the engine E is provided on the opposite side of the threshing portion 7 of the engine E. A cooling fan 25 that sucks cooling air into the engine room 11 and cools the radiator 24, and the like are disposed. The cooling fan 25 can be stopped without stopping driving to an alternator or a water pump (not shown) by a fan driving stop mechanism 26 comprising a belt and a tension pulley, and the dust attached to the engine room door 17 can be removed. It can be done.

  A particulate matter removing device 27 (hereinafter referred to as DPF) is disposed behind the engine E and on the body frame 21, and the DPF 27 is connected to the engine E by a connection pipe 29, and from the engine E. The particulate matter contained in the exhaust gas discharged is collected and further burned to remove the particulate matter. As shown in FIG. 2, the DPF 27 is disposed so as to overlap the engine room 11 in which the engine E is stored and the threshing unit 7 in a plan view. The said threshing part 7 is comprised from all the parts for performing threshing, and naturally the rotating shaft 53, the drive pulley 55, the transmission belt 60, the driven pulley 57, and the intermediate shaft 56 of the said Kara fan 52 are also included. More specifically, the DPF 27 is disposed below the transmission belt 60 so as to partially overlap the transmission belt 60 in plan view. The rear end of the engine room 11 is partitioned by a rear engine cover 36 described later. Since the DPF 27 is arranged in this way, the DPF 27 can be arranged in a compact manner by utilizing the empty space in the engine room 11 and the threshing portion 7, particularly the empty space below the transmission belt 60. In addition, since the DPF 27 is disposed at a predetermined distance from the engine room door 17, it is possible to prevent the operator from touching the DPF that becomes high temperature accidentally and improve safety.

As shown in FIGS. 4 to 6, support columns 31, 32, 33 are provided upright from the body frame 21 so as to surround the engine room 11, and these support columns 31, 32, 33 are provided in the air cleaner room. 12, an air cleaner room cover 35 that covers surfaces other than the surfaces on the air cleaner room door 20 side and the partition wall 13 side is supported. Further, the support column 33 supports a rear engine cover 36 that covers the rear side of the engine room 11. The DPF 27 is placed horizontally so that its longitudinal direction is the left-right direction of the machine body, and is disposed in front of the rear engine cover 36 and behind the engine E. The post 32 is positioned close to the upper Symbol DPF27.

  The connection portion 34 to which the connection pipe 29 and the DPF 27 are connected is disposed on the opposite side of the DPF 27 from the threshing portion 7, that is, on the right side end portion 27 a in the left-right direction of the machine body and on the rear side of the cooling fan 25. Thus, by arranging the connection part 34 remotely from the threshing part 7, it prevents that the sawdust which generate | occur | produces in the threshing part 7 accumulates in the connection part 34, and prevents the malfunction of DPF27 by a sawdust. be able to. Further, since the connecting portion 34 is disposed behind the cooling fan 25, the cooling air generated by the cooling fan 25 blows to the vicinity of the connecting portion 34 to reliably prevent soot accumulation. Can do.

  The connection pipe 29 is divided into a front pipe 29a and a rear pipe 29b behind the engine E. The front side pipe 29a and the rear side pipe 29b are configured to be able to contact and separate by a flange portion 29c including a flange and a bolt. As shown in FIG. 4, the front pipe 29 a includes a rear extension 37 extending from the upper left part of the engine E to the rear of the fuselage, and a side opposite to the engine E with respect to the column 32 in the vicinity of the column 32. A bent portion 39 bent through the bent portion 39, and a downward extending portion 40 inclined downward from the bent portion 39 and extending to the flange portion 29c. The front pipe 29a having the rear extension part 37, the bent part 39, and the lower extension part 40, and the rear pipe 29b constituting the connection pipe 29 are stored in the engine room 11, The exhaust gas in the connection pipe 29 is kept at a high temperature. Thereby, deterioration of the performance of DPF27 can be prevented.

  A left end 27b of the DPF 27 in the left-right direction of the body projects from the rear engine cover 36 to the left in the left-right direction of the body, and a tail pipe 41 extends from the rear end surface. The tail pipe 41 extends below the fuselage frame 21 and is connected to a diffuser 42 that reduces exhaust noise. The left end 27b of the DPF 27 is covered with a front cover 43a (see FIGS. 8 and 9), a rear cover 43b, an upper cover 43c, and a left cover 43d on the front side, rear side, upper side, and left side, respectively. The front cover 43a, the rear cover 43b, the upper cover 43c, and the left cover 43d constitute a DPF cover 43. That is, the DPF cover 43 is configured such that the right side and the lower side of the body are opened.

  As shown in FIG. 7, the front cover 43a, the rear cover 43b, and the left cover 43d are arranged with narrow gaps d, e, and f, respectively, with respect to the DPF 27, while the upper cover 43c is As shown in FIGS. 8 and 9, the DPF 27 is provided with a gap g larger than the gaps d, e, and f. In the vicinity of the upper cover 43c, a sensor group 45 including a differential pressure sensor that detects the amount of particulate matter collected in the DPF 27, a temperature sensor that detects the temperature in the DPF 27, and the like is disposed. . Since the DPF 27 and the support column 32 are arranged close to each other, for example, by clamping the wiring to the support column 32, the support column 32 can be used for routing the sensor group 45, and convenience is improved. Can do.

  The rear cover 43b is formed continuously with the rear engine cover 36 so as to be flush with the rear engine cover 36. The tail pipe cover 46 covers the connection portion of the tail pipe 41 with the DPF 27, and the tail pipe cover 46. And a rectangular hole 47 provided above is formed. The rear side of the DPF 27 is covered with a rear cover 43b at the left end 27b and covered with the rear engine cover 36 at portions other than the left end 27b. Since the cover 36 is shared as the cover of the DPF 27, the cost can be reduced. Further, since the DPF cover 43 is also covered with the left cover 43d on the left side surface on the threshing portion 7 side, and is formed flush with the rear engine cover 36, soot generated in the threshing portion 7 is accumulated on the DPF 27. Can be prevented. The tail pipe cover 46 is formed such that the upper surface thereof is inclined rearward so that sawdust and the like do not enter the DPF cover 43.

  Since the present embodiment is configured as described above, when the DPF 27 is removed from the body frame 21 for maintenance, the glen tank 9 is opened and accessed from the rear of the engine room 11. Then, the rear engine cover 36 and the DPF cover 43 are removed to expose the DPF 27.

  Thereafter, the bolt is removed at the flange portion 29c of the connection pipe 29 to separate the front pipe 29a and the rear pipe 29b, and the tail pipe 41 is removed from the DPF 27. Thereby, DPF27 and the rear side pipe 29b can be removed to the outer side of the body 3. FIG. At this time, since the front side pipe 29a is routed around the side opposite to the engine E of the support column 32, the operability is improved when the bolts of the flange portion 29c are detached and the DPF 27 and the rear side pipe 29b are detached. Good maintainability can be improved.

  Further, since the connection pipe 29 is divided so as to be freely contacted and separated by the flange portion 29c, when the DPF 27 is removed for maintenance, the heavy connection pipe can be removed from the divided portion, thereby improving maintainability. be able to. In addition, since only the rear pipe 29b of the connection pipe 29 can be removed, the parts around the engine can be easily accessed from the DPF side, and the maintainability can be improved. Furthermore, when assembling the connection pipe 29, it is not necessary to assemble a heavy pipe at a time, and assemblability is good.

  In this embodiment, the DPF 27 is disposed below the transmission belt 60. However, regardless of the transmission belt 60, the DPF 27 is disposed so as to overlap the parts constituting the threshing portion 7 and the engine room 11 in a plan view. If it is, DPF27 may be arrange | positioned anywhere.

  In addition, the combine 1 is provided with a vehicle body horizontal control device that raises and lowers the crawler height according to the unevenness of the field, and when the DPF 27 is regenerated, the control is performed to maximize the crawler height. The DPF that becomes high temperature may be remoted.

1 Combine 7 Thresher 11 Engine Room 21 Machine Frame 24 Radiator 25 Cooling Fan 27 DPF (Particulate Matter Removal Device)
27a Right end (opposite end)
29 Connection pipe 32 Strut (frame member)
34 connecting portion 51 shaft 52 tang fan 53 rotating shaft 60 transmission belt E engine

Claims (4)

An engine mounted on the fuselage frame and stored in the engine room; a particulate matter removing device mounted on the fuselage frame and removing particulate matter contained in exhaust gas discharged from the engine; and pre-processing In a combine equipped with a threshing unit for threshing cereals harvested by the part,
A plurality of frame members erected from the body frame so as to surround the engine room;
An air cleaner room cover that is supported by the plurality of frame members and covers an air cleaner room disposed above the engine room, and
The plurality of frame members are disposed on the rear side of the engine body and have a support column that supports the rear side of the air cleaner room cover inside the body.
The particulate matter removing device is disposed so as to overlap the engine room and the threshing portion in a plan view and in proximity to the support column .
Combine that is characterized by that. The threshing portion includes a handling cylinder that is rotatably supported in a handling chamber, a tang fan that wakes a sorting wind that wind-sorts the items that have leaked from the handling chamber, and a drive pulley provided on a rotating shaft of the tang fan. And a driven pulley that is disposed above the drive pulley so as to at least partially overlap the air cleaner room in the height direction and is capable of transmitting drive to the handling cylinder, and is wound around the drive pulley and the driven pulley. A transmission belt,
The particulate matter removing device is disposed below the transmission belt so as to partially overlap the transmission belt in a plan view.
The combine according to claim 1. A radiator disposed on the opposite side of the threshing portion of the engine and a cooling fan for cooling the radiator;
A connection pipe connecting the engine and the particulate matter removing device,
Connection portion to which the connecting pipe and the particulate matter removing device is connected, are arranged in a body behind the opposite end and the cooling fan of the said threshing section of the particulate matter removing device,
The combine according to claim 1 or 2 . The connection pipe passes through the opposite side of the support to the engine and is stored in the engine room.
The combine according to claim 3 .

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