JP2014025392A - Engine device for work machine mounting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine device for work machine mounting capable of connecting an exhaust emission control system 74 to chassis frames of various work machines (an engine room frame 91 or a casing of a grain thresher 5) and so on in various arrangement (various directions), and capable of improving anti-vibration strength of the exhaust emission control system 74.SOLUTION: An engine device includes an exhaust emission control system 74 which processes exhaust gas from a diesel engine 14. An exhaust gas inlet port 81 of the exhaust emission control system 74 is connected to an exhaust pipe of the diesel engine 14. On a single circumference of an outer circumferential face of the exhaust emission control system 74, a plurality of support bracket bodies 114, 141 are provided to radially protrude.

Description

  The present invention relates to an engine device mounted on a work machine, such as a combine harvester that harvests cereals planted in a field and collects grains, or a feed combine that harvests cereals for feed and collects it as feed. The present invention relates to an engine device for mounting on a work machine that is mounted on a combine or the like equipped with an exhaust gas purification device that purifies exhaust gas discharged from an engine.

  Conventionally, a combiner as a work machine includes a traveling machine body equipped with an engine, and is configured such that a pair of left and right traveling crawlers are mounted on the traveling machine body, and the pair of left and right traveling crawlers are driven and controlled to move on a farm field or the like. ing. In addition, the combine cuts the stock of uncut cereal planted in the field with a cutting blade device, conveys the cereal to a threshing device with a cereal conveying device as a cereal conveying means, and The cereal is threshed and the grains are collected. Conventionally, an exhaust gas purification device that purifies exhaust gas is disposed on the upper surface of the engine, and exhaust gas is discharged from the engine toward the exhaust gas purification device (see, for example, Patent Document 1).

JP 2010-209813 A

  In the prior art, since the engine and the exhaust gas purification device are installed in the engine room, it is necessary to secure an installation space for the exhaust gas purification device in the engine room. There are problems such as being restricted. In addition, in a structure in which the exhaust gas purification device is installed on a traveling machine body located away from the engine, such as a truck, the installation space of the exhaust gas purification device can be easily secured, but the exhaust gas temperature in the exhaust gas purification device However, there is a problem that the self-regeneration capability is easily reduced due to a decrease in the temperature below a predetermined temperature.

  Accordingly, the present invention seeks to provide an engine device mounted on a work machine that has been improved by examining these current conditions.

  In order to achieve the object, an engine device for mounting a work machine according to a first aspect of the present invention includes an exhaust gas purification device that processes exhaust gas of a diesel engine, and the exhaust pipe of the diesel engine includes an exhaust gas purification device. In the engine device for mounting on a working machine to which an exhaust gas intake port is connected, a plurality of support bracket bodies are radially provided on the same circumference on the outer surface of the exhaust gas purification device.

  According to a second aspect of the present invention, in the engine device for mounting a work machine according to the first aspect, a support bracket body that restricts the movement of the exhaust gas purification device in the front-rear direction, and the left-right direction of the exhaust gas purification device. A support bracket body that restricts the movement of the exhaust gas, and the exhaust gas purification device is supported in a vertical position via the support bracket bodies on a machine frame in which the diesel engine is disposed or a machine frame of an adjacent working unit. It is comprised as follows.

  According to a third aspect of the present invention, in the engine device for mounting a work machine according to the first aspect, the exhaust gas purifying device is provided in a vertical posture in which the exhaust gas moves from the lower end side toward the upper end side, and A front support bracket and a side support bracket as a plurality of support bracket bodies are arranged at substantially the same height position on the outer side surface of the exhaust gas purification device, and the front support bracket mainly arranges the front and rear of the exhaust gas purification device. The movement in the direction is restricted, and the movement of the exhaust gas purification device mainly in the left-right direction can be restricted by the side support bracket.

  According to a fourth aspect of the present invention, there is provided a working machine-mounted engine device according to the first aspect, wherein the traveling machine body on which the diesel engine is mounted, a reaping device that harvests grain culm in a field, and a harvested culm. A threshing device for threshing and a grain tank for taking out the grains are provided, an engine room frame is erected on the traveling machine body, an engine room is formed by the engine room frame, and the diesel engine is disposed in the engine room. The exhaust gas purifying device is arranged in a vertical posture on the outside of the engine room frame via the support bracket body, and a sensor bracket is disposed on the upper end side of the outer surface of the exhaust gas purifying device. The base end side is fixed, and the exhaust pipe is protruded outward from the exhaust gas purifying device. It is obtained by placing a differential pressure sensor of the gas purifier.

  According to the first aspect of the present invention, an engine for working equipment that includes an exhaust gas purification device that processes exhaust gas of a diesel engine, and that connects an exhaust gas intake port of the exhaust gas purification device to an exhaust pipe of the diesel engine. In the apparatus, since a plurality of support bracket bodies project radially from the outer circumference of the exhaust gas purification apparatus on the same circumference, chassis of various working machines are provided via the support bracket bodies. The exhaust gas purification device can be connected to a frame or the like in a multifaceted (multidirectional) manner, and the seismic strength of the exhaust gas purification device can be improved against mechanical vibrations. The exhaust gas purification device can be supported with high rigidity on the chassis frame or the like separated from the diesel engine. The support structure of the exhaust gas purification device can be simplified and can be configured at low cost.

  According to a second aspect of the present invention, the diesel engine includes a support bracket body that restricts movement of the exhaust gas purification apparatus in the front-rear direction, and a support bracket body that restricts movement of the exhaust gas purification apparatus in the left-right direction. The exhaust gas purifying device is configured to support the exhaust gas purifying device in a vertically installed posture via the support bracket bodies on the machine frame in which the engine is disposed or the adjacent working unit. The exhaust gas purifying device can be arranged in a compact manner by utilizing the space formed between the diesel engine and the working part, while being able to improve the seismic resistance and to support with high rigidity.

  According to the invention of claim 3, the exhaust gas purification device is provided in a vertical position in which the exhaust gas moves from the lower end side toward the upper end side, and the substantially same height of the outer surface of the exhaust gas purification device is provided. The front support bracket and the side support bracket as a plurality of support bracket bodies are arranged at the position, and the front support bracket restricts the movement of the exhaust gas purification device mainly in the front-rear direction, and the side support bracket Since the exhaust gas purifying device is mainly configured to be able to restrict movement in the left-right direction, the exhaust gas intake port is disposed on the lower end side of the exhaust gas purifying device, and the upper end side of the exhaust gas purifying device The exhaust gas purifying device can be supported with high rigidity in a vertically installed posture in which the exhaust gas discharge port is disposed. Further, the exhaust gas purification device can be compactly disposed at a position close to the exhaust manifold of the diesel engine and higher than the exhaust manifold, and the diesel engine and peripheral devices (the exhaust gas purification device, etc.) Assembling workability can be improved.

  According to the invention which concerns on Claim 4, the traveling body which mounts the said diesel engine, the reaping device which harvests the grain straw of a field, the threshing apparatus which threshs the harvested grain straw, and the grain tank which takes out grain An engine room frame is erected on the traveling machine body, an engine room is formed by the engine room frame, and the diesel engine is arranged in the engine room, and the engine room frame is disposed outside the engine room frame. The exhaust gas purifying device is arranged in a vertical posture through a support bracket body, and the base end side of the sensor bracket is fixed to the upper end side of the outer side surface of the exhaust gas purifying device, from the exhaust gas purifying device. The differential pressure sensor of the exhaust gas purifying device is arranged on the front end side of the sensor bracket projecting outward. In addition, it is not necessary to secure an installation space for the exhaust gas purification device in the engine room, and the exhaust gas in close proximity to the engine is not limited in volume of the engine room or the exhaust gas purification device. Supports the purification device. Further, the differential pressure sensor can be arranged separately from the high temperature portion of the exhaust gas purification device. The influence of the temperature of the exhaust gas purification device on the differential pressure sensor can be reduced and can be configured at low cost. The electrical wiring for the differential pressure sensor or the like can also be simplified.

It is a left view of the combine for 6 thread cutting of embodiment of this invention. It is the same top view. It is the same right view. It is a back view perspective view of an exhaust-gas purification apparatus part. It is the same perspective view perspective view. It is the same plane explanatory drawing. FIG. 5 is an enlarged explanatory view of FIG. 4. It is a perspective view of an engine and an exhaust gas purification device.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. With reference to FIGS. 1-3, the whole structure of the combine as a working machine with which the diesel engine was mounted is demonstrated. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side. As shown in FIGS. 1 to 3, a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 as a traveling unit is provided. At the front part of the traveling machine body 1, a 6-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing pivot fulcrum shaft 4 a. The A threshing device 5 having a feed chain 6 and a grain tank 7 for storing the grains taken out from the threshing device 5 are mounted on the traveling machine body 1 side by side. The threshing device 5 is disposed on the left side in the forward direction of the traveling machine body 1, and the grain tank 7 is disposed on the right side in the forward direction of the traveling machine body 1.

  Further, a swivelable discharge auger 8 is provided at the rear part of the traveling machine body 1 so that the grains inside the grain tank 7 are discharged from the culling throw port 9 of the discharge auger 8 to a truck bed or a container. Has been. An operation cabin 10 is provided on the right side of the cutting device 3 and on the front side of the grain tank 7. A cabin rotation fulcrum shaft 10a is provided in the lower front portion of the driving cabin 10, and the lower portion of the front surface of the operation cabin 10 is pivotally supported on the traveling machine body 1 via the cabin rotation fulcrum shaft 10a. The driving cabin 10 is movably installed, and is configured to rotate the driving cabin 10 forward about the cabin rotation fulcrum shaft 10a.

  In the driving cabin 10, there are disposed a steering handle 11, a driving seat 12, a main transmission lever 15, an auxiliary transmission switch 16, and a work clutch lever 17 for turning on and off the threshing clutch and the cutting clutch. A diesel engine 14 as a power source is disposed in the traveling machine body 1 below the driver seat 12. The operation cabin 10 is provided with a step on which an operator gets on, a handle column provided with a steering handle 11, and a lever column provided with the levers 15 and 17, the switch 16, and the like.

  As shown in FIG. 1, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 14 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 and an intermediate roller 25 that holds the non-grounded side of the traveling crawler 2 are provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, the track roller 24 supports the grounding side of the traveling crawler 2, and the intermediate roller 25 supports the non-traveling crawler 2. Support the ground side.

  As shown in FIGS. 1 and 2, below the cutting frame 51 connected to the cutting rotation fulcrum shaft 4 a of the cutting device 3, a clipper for cutting the stock of uncut grain cereal (grain culm) planted in the field. A type cutting blade device 52 is provided. In front of the reaping frame 51, a stalk raising apparatus 53 for 6 stalks that raises an uncut cereal cultivated in the field is arranged. Between the culm pulling device 53 and the front end (feed start side) of the feed chain 6, a culm transporting device 54 that transports the chopped culm harvested by the cutting blade device 52 is arranged. In addition, in front of the lower part of the cereal habit raising device 53, a weeding body 55 corresponding to 6 strips for weeding the uncut cereal cedar is provided. While moving in the field, the reaping device 3 continuously cuts uncut cereal grains planted in the field.

  Next, with reference to FIG.1 and FIG.2, the structure of the threshing apparatus 5 is demonstrated. As shown in FIG. 1 and FIG. 2, the threshing device 5 includes a handling cylinder 56 for threshing threshing, a rocking sorter 57 that sorts the cereals falling below the handling cylinder 56, and a tang fan 58. A processing cylinder 59 for reprocessing the threshing discharge taken out from the rear part of the cylinder 56 and a dust exhaust fan 60 for discharging dust at the rear part of the rocking sorter 57 are provided. In addition, the cereals conveyed by the culm conveying device 54 from the reaping device 3 are inherited by the feed chain 6, carried into the threshing device 5, and threshed by the handling cylinder 56.

  As shown in FIG. 1, on the lower side of the rocking sorter 57, there are a first conveyor 61 for taking out the grain (the first thing) sorted by the rocking sorter 57 and two branches such as a grain with branches and branches. A second conveyor 62 for taking out the articles is provided. The rocking sorter 57 is configured such that the cereal grains leaked from the receiving net 67 stretched below the handling cylinder 56 are rocked and sorted (specific gravity sorting) by the feed pan 68 and the chaff sheave 69. . Grains that fall from the swing sorter 57 are removed by the sorting air from the tang fan 58 and fall to the conveyor 61 first. The grain taken out first from the conveyor 61 is carried into the grain tank 7 via the cereal conveyor 63 and collected in the grain tank 7.

  Further, as shown in FIG. 1, the swing sorter 227 is configured to drop a second thing such as a grain with a branch incline from the chaff sheave 69 onto the second conveyor 62 by swing sorting. A sorting fan 71 for wind-selecting the second object that falls below the chaff sheave 69 is provided. As for the second thing that has fallen from the chaff sheave 69, the dust and swarf in the grain are removed by the sorting air from the sorting fan 71 and dropped onto the second conveyor 62. The terminal portion of the second conveyor 62 is connected to the upper surface side of the rear portion of the feed pan 68 via the reduction conveyor 66, and is configured to return the second product to the upper surface side of the swing sorting plate 67 and re-sort. doing.

  On the other hand, as shown in FIGS. 1 and 2, an exhaust chain 64 and an exhaust cutter 65 are arranged on the rear end side (feed end side) of the feed chain 6. The waste passed through the feed chain 6 from the rear end side of the feed chain 6 (the straw from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear part of the threshing device 5 After being cut to an appropriate length by a waste cutter 65 provided at the front, the paper is discharged to the lower rear of the traveling machine body 1.

  Next, an exhaust gas purification case 75 as a continuously regenerative exhaust gas purification device 74 (diesel particulate filter) and its mounting structure will be described with reference to FIGS. As shown in FIGS. 6 to 8, the exhaust gas purification device 74 includes a continuously regenerative exhaust gas purification case 75 for introducing the exhaust gas of the diesel engine 14. The exhaust gas purification case 75 has an inlet side case 76 and an outlet side case 77. Inside the inlet side case 76 and the outlet side case 77, a diesel oxidation catalyst 79 (gas purifier) such as platinum that generates nitrogen dioxide (NO2) and the collected particulate matter (PM) are continuously provided at a relatively low temperature. The soot filter 80 (gas purifier) having a honeycomb structure to be oxidized and removed is arranged in series in the exhaust gas movement direction (from the lower side to the upper side in FIG. 7). In addition to the removal of particulate matter (PM) in the exhaust gas of the diesel engine 1 by the diesel oxidation catalyst 79 and the soot filter 80 in the inlet side case 76 and the outlet side case 77, carbon monoxide (CO) in the exhaust gas. And hydrocarbons (HC) are reduced.

  6 to 8, a purification inlet pipe 81 as an exhaust gas inlet pipe is welded and fixed to the inlet side case 76, and a purification outlet pipe 82 as an exhaust gas outlet pipe is welded and fixed to the silencer case 78. To do. A purification outlet pipe 82 is connected to a tail pipe 83 as an exhaust pipe. The exhaust gas of the diesel engine 14 is introduced into the exhaust gas purification case 75 from the purification inlet pipe 81, and the exhaust gas in the exhaust gas purification case 75 is discharged from the purification outlet pipe 82 to the tail pipe 83 and released outside the apparatus. It is constituted so that. The inlet side case 76 and the outlet side case 77 are detachably fastened by a plurality of sets of thick plate intermediate flange bodies 84 and a plurality of bolts 85.

  With the above configuration, the nitrogen dioxide (NO 2) generated by the oxidation action of the diesel oxidation catalyst 79 is supplied into the soot filter 80 from one end face (intake end face). Particulate matter (PM) contained in the exhaust gas of the diesel engine 14 is collected by the soot filter 80 and continuously oxidized and removed by nitrogen dioxide (NO2). In addition to the removal of particulate matter (PM) in the exhaust gas of the diesel engine 14, the content of carbon monoxide (CO) and hydrocarbon (HC) in the exhaust gas of the diesel engine 14 is reduced.

  Next, as shown in FIGS. 4 to 7, an engine room frame 91 is erected on the traveling machine body 1, and the rear surface side of the diesel engine 14 placed on the upper surface side of the traveling machine body 1 is surrounded by the engine room frame 91. The engine room frame 91 includes a left square pipe-shaped column body 92, a right square pipe-shaped column body 93, and a square pipe-shaped horizontal frame 94 that is integrally welded to both left and right column bodies 92, 93. Have. Further, a rubber pressure contact leg (not shown) is provided at the bottom rear portion of the driving cabin 10, and the pressure contact legs at the bottom of the driving cabin 10 are brought into contact with the upper surfaces of the left and right cradles 96 of the horizontal frame 94 from the upper side. The rear part of the driving cabin 10 is supported by 94 cradles 96 so as to be movable up and down. The diesel engine 14 is installed in the engine room 97 formed by the bottom surface side of the operation cabin 10 and the engine room frame 91.

  Further, the purification case support 111 is integrally fixed to the horizontal frame 94 by welding. A front support bracket 114 is integrally welded and fixed to the outer surface of the inlet side case 76 in the exhaust gas purification case 75. The front part of the front support bracket 114 is fitted to the purification case support 111 from the rear side, and the purification case support is provided by a bolt 116 that is screwed to the side surface of the purification case support 111 and the front support bracket 114 from the left and right. A front support bracket 114 is detachably fastened to 111.

  That is, an engine room 97 is formed on the lower side of the cabin 10, the cabin 10 is movably installed toward the front upper side (outer side of the aircraft), the cradle 96 that supports the cabin 10, and the exhaust The purification case support 111 that supports the gas purification case 75 is disposed in the same part (the horizontal frame 94) of the engine room frame 91, and the cabin 10 can be connected to and separated from the exhaust gas purification case 75. . In addition, an exhaust gas purification case 75 is disposed in the air discharge portion of the air conditioning fan 115 installed on the back of the cabin 10.

  Further, as shown in FIGS. 5 to 8, the side surface support bracket 141 is integrally welded and fixed to the outer surface of the inlet side case 76 in the exhaust gas purification case 75. Front support brackets 114 and side support brackets 141 are radially arranged on the same circumference of the outer surface of the entrance side case 76. One end of the assembly adjustment plate 142 is fastened to the side support bracket 141 so that the position of the assembly adjustment plate 142 can be adjusted, and the machine-side support bracket 143 is fastened to the right side surface of the machine housing frame 144 of the threshing device 5. The machine side support bracket 143 is fastened to the end side. The side support bracket 141 and the main unit side support bracket 143 are connected and fixed so that the position can be adjusted via the assembly adjustment plate 142. The side surface of the purification case support 111 and the right side of the threshing device 5 are detachably connected via a side surface support bracket 141.

  That is, as shown in FIGS. 5 to 8, the intermediate portion of the exhaust gas purification case 75 is fixed to the engine room frame 91 through the inlet side case 76 in a vertically installed posture. Further, a purification inlet pipe 81 is provided in a laterally forward posture on the front side of the exhaust gas purification case 75 among the exhaust gas supply side at the lower end side of the exhaust gas purification case 75, and the purification inlet is directed toward the upper surface side of the engine 14 (front of the fuselage). A tube 81 is extended. An exhaust manifold 117 and a supercharger 118 are arranged at the upper part on the front side of the engine 14 mounted on the traveling machine body 1 with the output shaft 112 directed in the left-right direction. One end side of the exhaust connection pipe 119 is connected to the purification inlet pipe 81 via a bendable bellows-like pipe 98, while the other end side of the exhaust connection pipe 119 is connected to the exhaust outlet pipe 99 of the supercharger 118. Yes.

  Further, an exhaust gas purification case 75 is connected to the exhaust manifold 117 through a supercharger 118 and an exhaust connection pipe 119. As shown in FIG. 4, on the right side of the threshing device 5, an exhaust gas purification case having a cylindrical shape (vertical posture) vertically long in a space formed between the front surface of the grain tank 7 and the rear surface of the cabin 10. 75, and the exhaust gas of the engine 14 is introduced into the exhaust gas purification case 75 via the exhaust manifold 117, the supercharger 118, and the exhaust connection pipe 119. Further, exhaust gas is discharged from the tail pipe 83 toward the rear side on the upper surface side between the threshing device 5 and the grain tank 7.

  On the other hand, as shown in FIGS. 4, 5, and 7, the exhaust support bracket 147 is fixed to the upper surface side of the threshing device 5, and the lower end side of the pipe support 148 is fastened to the exhaust support bracket 147. The lower surface side of the connecting portion between the purification outlet pipe 82 and the tail pipe 83 is fixed to the upper end side of the pipe support 148 that is erected in an upright manner. A connecting portion between the purification outlet pipe 82 and the tail pipe 83 is supported on the upper surface side of the threshing device 5 via the exhaust support bracket 147 and the pipe support 148. Note that a gap is formed at the connecting portion between the small-diameter side purification outlet pipe 82 and the large-diameter side tail pipe 83, and the exhaust gas from the purification outlet pipe 82 is mixed with outside air to reduce the exhaust temperature. The gas is configured to be discharged from the tail pipe 83.

  As shown in FIGS. 4 to 8, the outlet side cover body 78 is detachably fastened and fixed to the outlet side case 77 of the exhaust gas purification case 75 via a plurality of thick plate upper end flange bodies 86. An intermediate portion of the purification outlet pipe 82 is disposed on one end side of the thick plate-like upper end flange body 86 projecting radially in the outer peripheral direction of the outlet side case 77 via a horizontal bracket 87, a vertical bracket 88 and a support bracket 89. Are connected to the outlet side case 77 to support the purification outlet pipe 82. Further, as shown in FIGS. 7 and 8, a drain port 133 is provided on the lower end side of the outer surface of the exhaust gas purification device 74. Therefore, dew condensation water or the like generated inside the exhaust gas purification device 74 can be easily discharged from the drain port 133, and the components inside the exhaust gas purification device 74 can be reduced from being rusted and corroded. Durability can be improved.

  On the other hand, as shown in FIG. 6 and FIG. 7, a hanging metal plate 134 is provided on the upper end side of the outer surface of the exhaust gas purification device 74. Therefore, in the assembly plant of the combine, for example, the suspension metal concrete 134 is locked to the hook of a cargo handling suspension device such as a chain block or a hoist, and the exhaust gas purification is performed via the suspension metal concrete 134 on the chain block or the like. The device 74 can be suspended, and the heavy exhaust gas purification device 74 can be easily transported and moved. Operations such as assembly or removal of the exhaust gas purification device 74 can be easily performed, and the detachability workability of the exhaust gas purification device 74 can be improved. In addition, the hanging metal concrete 134 is integrally formed as a part of the thick plate-like upper end flange body 86.

  Further, the sensor bracket 121 is bolted to the other end of the thick plate-like upper end flange body 86 projecting radially in the outer peripheral direction of the outlet side case 77, and the sensor bracket 121 is arranged on the outer surface side of the upper end side of the exhaust gas purification case 75. Arrange. A differential pressure sensor 122 integrally provided with an electrical wiring connector is attached to a flat upper surface of a sensor bracket 121 projecting laterally from the exhaust gas purification case 75. A differential pressure sensor 122 is disposed on the outer surface of the exhaust gas purification case 75 via a sensor bracket 121. The differential pressure sensor 122 is connected to one end side of an upstream sensor pipe and a downstream sensor pipe (not shown). The upstream and downstream sensor piping boss bodies 125 and 126 disposed in the exhaust gas purification case 75 so as to sandwich the soot filter 80 in the exhaust gas purification case 75 are connected to the upstream and downstream sensor pipings. The other end side of each is connected.

  With the above configuration, the difference between the exhaust gas pressure on the inflow side of the soot filter 80 and the exhaust gas pressure on the outflow side of the soot filter 80 (exhaust gas differential pressure) is detected via the differential pressure sensor 122. Since the residual amount of particulate matter in the exhaust gas collected by the soot filter 80 is proportional to the differential pressure of the exhaust gas, the difference occurs when the amount of particulate matter remaining in the soot filter 80 increases more than a predetermined amount. Based on the detection result of the pressure sensor 122, regeneration control for reducing the amount of particulate matter in the soot filter 80 (for example, control for increasing the exhaust temperature) is executed. When the residual amount of particulate matter further increases beyond the regeneration controllable range, the maintenance work for removing the particulate matter artificially by removing and disassembling the exhaust gas purification case 75, cleaning the soot filter 80, and so on. Is done.

  In addition, an electrical wiring connector 127 is integrally provided on the outer case portion of the differential pressure sensor 122, and an upstream side gas temperature sensor 128 that detects the exhaust temperature on the exhaust gas intake side of the diesel oxidation catalyst 76, and the diesel oxidation catalyst 76. A downstream gas temperature sensor 130 for detecting the exhaust gas temperature on the exhaust gas discharge side is provided. The electrical wiring connector 129 of the upstream gas temperature sensor 128 and the electrical wiring connector 131 of the downstream gas temperature sensor 130 are fixed to the sensor bracket 121.

  That is, the rear part of the grain tank 7 is supported by the take-out conveyor 8a that supports the discharge auger 8, the front side of the grain tank 7 is horizontally rotated around the grain tank 7, and the grain tank 7 can be moved toward the outside of the machine. In the provided structure, an exhaust gas purification case 75 is disposed between the engine room frame 91 and the grain tank 7. An exhaust gas differential pressure sensor 122 and an electrical wiring connector 129 as an exhaust temperature sensor connector are provided on an upper surface of an exhaust gas purification case 75 disposed opposite to the exhaust side of the air conditioning fan 115 via a support bracket 121. 131 is arranged.

  In addition, with the posture in which the connection directions of the electrical wiring connector 127 of the differential pressure sensor 122, the electrical wiring connector 129 of the upstream gas temperature sensor 128, and the electrical wiring connector 131 of the downstream gas temperature sensor 130 are directed in the same direction, The connectors 127, 129, 131 are supported. Therefore, the exhaust of the air conditioning fan 115 can cool the differential pressure sensor 122 or the wirings of the connectors 127, 129, and 131. The exhaust heat on the exhaust gas purification case 75 side can prevent them from burning out and improve their durability.

  As shown in FIGS. 1 and 4 to 8, an exhaust gas purification device 74 that processes exhaust gas of the diesel engine 14 is provided, and a purification inlet as an exhaust gas intake port of the exhaust gas purification device 74 is provided in the exhaust pipe of the diesel engine 14. In the working machine-mounted engine device to which the pipe 81 is connected, the exhaust gas purification device 74 is provided in a vertical orientation, the purification inlet pipe 81 is disposed on the lower end side of the exhaust gas purification device 74, and the upper end side of the exhaust gas purification device 74 A purification outlet pipe 82 is disposed as an exhaust gas outlet. Therefore, the plane installation space of the exhaust gas purifying device 74 can be made narrower than in the conventional horizontal orientation. The exhaust gas purification device 74 can be compactly arranged at a position close to the exhaust manifold 117 of the diesel engine 14 and higher than the exhaust manifold 117. The layout of the diesel engine 14 and peripheral devices (such as the exhaust gas purification device 74) can be easily designed. Further, operations such as assembling or removing the exhaust gas purifying device 74 can be easily performed in a state where the diesel engine 14 is installed in various working machines, and the detachability workability of the exhaust gas purifying device 74 can be improved.

  As shown in FIGS. 4 to 8, front support brackets 114 or side support brackets 141 as a plurality of support bracket bodies project radially from the outside width of the exhaust gas purification device 74 in the middle of the vertical width, and the exhaust gas is exhausted. A drain port 133 is provided on the lower end side of the outer surface of the gas purification device 74. Therefore, while it is possible to improve the support rigidity of the exhaust gas purification device 74 against mechanical vibration or the like, the dew condensation water generated inside the exhaust gas purification device 74 can be easily discharged from the drain port 133, and the exhaust gas purification device. The durability of 74 can be improved.

  As shown in FIGS. 4 to 8, a front support bracket 114 or a side support bracket 141 projects radially from the outer side surface of the exhaust gas purification device 74 in the middle of the vertical width, and the outer surface of the exhaust gas purification device 74. Of these, a hanging metal plate 134 is provided on the upper end side. Accordingly, while the support rigidity of the exhaust gas purification device 74 can be improved against mechanical vibrations, the exhaust gas purification device 74 is suspended from a chain block or the like via the suspension metal member 134, and assembled or removed. Thus, the work of attaching and detaching the exhaust gas purification device 74 can be improved.

  As shown in FIG. 1 and FIG. 4 to FIG. 8, a traveling machine 1 equipped with an engine 14, a reaping device 3 for harvesting cereal grains in a field, a threshing device 5 for threshing the harvested culm, and grains In the structure including the grain tank 7 to be taken out, the engine room frame 91 is erected on the traveling machine body 1, the engine room 97 is formed by the engine room frame 91, and the engine 14 is disposed in the engine room 97. The exhaust gas purification device 74 is arranged in a vertical position outside the exhaust gas, and the exhaust gas of the engine 14 is introduced to the lower end side of the exhaust gas purification device 74, while the tail pipe 83 is connected to the upper end side of the exhaust gas purification device 74. It is configured as follows. Accordingly, it is not necessary to secure an installation space for the exhaust gas purifying device 74 in the engine room 97, and the exhaust gas purifying is made close to the engine 14 while the volume of the engine room 97 or the exhaust gas purifying device 74 is not limited. Device 74 can be supported. For example, an installation space for the exhaust gas purification device 74 can be easily secured between the engine room 97 and an adjacent working unit (such as the threshing device 5 or the grain tank 7). Further, the exhaust gas introduction side at the lower end side of the exhaust gas purification device 74 in the vertical position can be connected to the exhaust manifold 117 of the engine 14 at the shortest distance, and the tail pipe 83 is provided at a high position of the adjacent working unit (threshing device 5). The support structure of the tail pipe 83 can be simplified.

  As shown in FIGS. 4 to 8, an exhaust gas purification device 74 for processing exhaust gas of the diesel engine 14 is provided, and a purification inlet pipe 81 as an exhaust gas intake port of the exhaust gas purification device 74 is provided on the exhaust pipe of the diesel engine 14. In the engine device to be connected, a front support bracket 114 and a side support bracket 141 as a plurality of support bracket bodies project radially on the same circumference on the outer surface of the exhaust gas purification device 74. Therefore, the exhaust gas purification device 74 is multifaceted (multidirectional) to the chassis frame (engine room frame 91 or the machine housing frame 144 of the threshing device 5) of various working machines via the front support bracket 114 and the side support bracket 141. The seismic strength of the exhaust gas purification device 74 can be improved against mechanical vibrations. The exhaust gas purifying device 74 can be supported with high rigidity on a chassis frame or the like separated from the diesel engine 14. The support structure of the exhaust gas purification device 74 can be simplified and can be configured at low cost.

  As shown in FIGS. 4 to 8, the front support bracket 114 as a support bracket body that restricts the movement of the exhaust gas purification device 74 in the front-rear direction and the support bracket body that restricts the movement of the exhaust gas purification device in the left-right direction. A front support bracket 114 and a side support are provided on a machine frame (engine room frame 91) in which the diesel engine 14 is disposed, or a machine frame (machine frame 144) of the threshing device 5 as an adjacent working unit. The exhaust gas purification device 74 is configured to be supported in a vertical posture through the bracket 141. Therefore, the exhaust gas purification device 74 can be supported with high rigidity by improving the earthquake resistance of the exhaust gas purification device 74, but the exhaust gas purification device 74 is arranged in a compact manner by utilizing the space formed between the diesel engine 14 and the working part. it can.

  As shown in FIGS. 4 to 8, the exhaust gas purification device 74 is provided in a vertical posture in which the exhaust gas moves from the lower end side toward the upper end side, and the substantially same height of the outer side surface of the exhaust gas purification device 74 is provided. The front support bracket 114 and the side support bracket 141 as a plurality of support bracket bodies are arranged at the position, and the front support bracket 114 restricts the movement of the exhaust gas purification device 74 mainly in the front-rear direction, and the side support bracket 141 Thus, the exhaust gas purifying device 74 is mainly configured to be able to regulate movement in the left-right direction. Therefore, the exhaust gas purification apparatus is in a vertically installed posture in which the purification inlet pipe 81 is disposed on the lower end side of the exhaust gas purification apparatus 74 and the exhaust gas discharge port (purification outlet pipe 82) is disposed on the upper end side of the exhaust gas purification apparatus 74. The device 74 can be supported with high rigidity. Further, the exhaust gas purification device 74 can be compactly arranged at a position close to the exhaust manifold 117 of the diesel engine 14 and higher than the exhaust manifold 117, and the diesel engine 14 and peripheral devices (exhaust gas purification device 74). Etc.) can be improved.

  As shown in FIG. 1 and FIG. 4 to FIG. 8, a traveling machine 1 equipped with a diesel engine 14, a reaping device 3 for reaping cereal grains in a field, a threshing device 5 for threshing the harvested cereal grains, and a grain The engine room frame 91 is erected on the traveling machine body 1, the engine room 97 is formed by the engine room frame 91, and the diesel engine 14 is disposed in the engine room 97. The exhaust gas purification device 74 is disposed in a vertical position on the outside of the engine room frame 91 via the front support bracket 114, and the base end of the sensor bracket 121 is disposed on the upper end side of the outer surface of the exhaust gas purification device 74. The exhaust gas purification device 7 is fixed to the front end side of the sensor bracket 121 that is fixed to the side and protrudes outward from the exhaust gas purification device 74. They are arranged in the differential pressure sensor 122. Therefore, it is not necessary to secure an installation space for the exhaust gas purification device 74 in the engine room 97, and the volume of the engine room 97 or the exhaust gas purification device 74 is not limited. The gas purification device 74 can be supported. Further, the differential pressure sensor 122 can be spaced apart from the high temperature portion of the exhaust gas purification device 74. The influence of the temperature of the exhaust gas purification device 74 on the differential pressure sensor 122 can be reduced, and the cost can be reduced. The electrical wiring for the differential pressure sensor 122 and the like can also be simplified.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Harvesting device 5 Threshing device 7 Grain tank 14 Diesel engine 74 Exhaust gas purification device 81 Purification inlet pipe (exhaust gas intake)
91 Engine room frame 97 Engine room 114 Front support bracket (support bracket body)
121 Sensor bracket 122 Differential pressure sensor 141 Side support bracket (support bracket body)

Claims (4)

In an engine device for a work machine equipped with an exhaust gas purification device for processing exhaust gas of a diesel engine, and connecting an exhaust gas intake port of the exhaust gas purification device to an exhaust pipe of the diesel engine,
An engine device for mounting a working machine, wherein a plurality of support bracket bodies project radially from the same circumference of the outer surface of the exhaust gas purification device.   A machine bracket in which the diesel engine is disposed or an adjacent work, comprising: a support bracket body that restricts movement of the exhaust gas purification apparatus in the front-rear direction; and a support bracket body that restricts movement of the exhaust gas purification apparatus in the left-right direction. 2. The working machine mounting engine device according to claim 1, wherein the exhaust gas purifying device is supported in a vertical position on the machine frame of each part via the support bracket bodies.   The exhaust gas purification device is provided in a vertical position in which the exhaust gas moves from the lower end side toward the upper end side, and a plurality of support bracket bodies are provided at substantially the same height position on the outer surface of the exhaust gas purification device. The front support bracket and the side support bracket are arranged, the front support bracket restricts the movement of the exhaust gas purification device mainly in the front-rear direction, and the side support bracket mainly controls the exhaust gas purification device in the left-right direction. The construction machine-mounted engine device according to claim 1, wherein the movement of the work equipment can be regulated.   A traveling machine body equipped with the diesel engine, a reaping device for harvesting grain culm in a field, a threshing device for threshing the harvested corn straw, and a grain tank for taking out the grains, and an engine room frame on the traveling machine body An engine room is formed by standing and forming the engine room frame, and the diesel engine is disposed in the engine room, and the exhaust gas purification is performed outside the engine room frame via the support bracket body. The device is arranged in a vertical posture, and the base end side of the sensor bracket is fixed to the upper end side of the outer surface of the exhaust gas purification device, and protrudes outward from the exhaust gas purification device. The working machine according to claim 1, wherein a differential pressure sensor of the exhaust gas purifying device is disposed on a front end side of the sensor bracket. Mounting for the engine system.

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