JP2012036800A - Engine working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine working machine equipped with a casing structure which prevents rain water intrusion into a casing as much as possible, and quickly flows rain water on inner surface of a side wall out of the machine without flowing into an oil retaining wall.SOLUTION: The engine working machine accommodates an engine and a working machine in the casing. The casing 17 supports the engine 19 and the working machine (an electrical generator 18), and has a frame 11, the inside of which has an oil retaining wall structure, side walls 12 to 15 which surround the engine and the working machine, and a top plate 16 which covers upper portions of the engine and the working machine. Lower end portions of the side walls are on the outer surface of the frame, and connected to a part lower the top surface of the frame.

Description

  The present invention relates to an engine work machine, and more particularly to an engine work machine that drives work equipment such as a generator and a compressor by an engine.

  In an engine working machine in which a working machine such as a generator or a compressor and an engine that drives the working machine are housed in a casing, an oil barrier is provided at the lower part of the casing, and the engine or fuel tank is The leaked oil is prevented from flowing out of the machine. In addition, in order to prevent rainwater from entering the inside of the casing from the opening of the casing, such as the air inlet, and the joint between each member, it is easy for rainwater to enter. In addition, a drainage member for discharging rainwater that has entered the inside of the casing to the outside of the machine is installed (see, for example, Patent Document 1).

JP 2009-250128 A

  However, the drainage member must be formed in a structure and shape according to the installation position, separately from the casing, and must be attached at a predetermined position. This contributes to an increase in the manufacturing cost of the engine working machine. It is difficult to install a drainage member in all of the openings and gaps into which water enters, and it has been necessary to prevent intrusion of rainwater using a liquid packing or the like in a portion where the drainage member cannot be installed. Furthermore, when a bolt hole is provided in the oil breakwater when joining the member constituting the oil breakwater and the casing, there is a risk that rainwater may enter the oil breakwater through the bolt hole. In addition, it was necessary to seal using liquid packing or the like.

  Therefore, an object of the present invention is to provide an engine working machine having a casing structure that can suppress rain water from entering the inside of the casing as much as possible.

  In order to achieve the above object, an engine work machine according to the present invention is an engine work machine in which an engine and a work machine driven by the engine are housed in a casing, wherein the casing supports the engine and the work machine. And a side wall that surrounds the engine and the work machine, and a top plate that covers the upper part of the engine and the work machine, forming an oil barrier on the inside or the lower side of the mount, and a lower end portion of the side wall Is bonded to the outer surface of the gantry.

  Furthermore, the engine work machine of the present invention is characterized in that a lower end portion of the side wall is joined to a side wall receiving member welded below the upper surface of the gantry on the outer surface of the gantry, and the lower end of the side wall is connected to the upper surface of the gantry. It is arranged on the outside of the lower gantry and is characterized in that a drainage hole communicating with the inside and outside of the side wall is provided at the lower end of the side wall. In addition, an air inlet is provided in the side wall, and a lower end of an air intake duct provided inside the air inlet is joined to an inner surface of the side wall located outside the vertical line of the outer surface of the gantry. Furthermore, a part of the side wall is a door that can be opened and closed, and provided with a packing material in the lower horizontal direction, both sides vertical direction and upper horizontal direction of the door, and the door contact with which the packing material abuts, It is characterized in that the lower end of both vertical doors is overlapped on the outer surface of the lower horizontal door and the upper horizontal door is overlapped on the upper upper surface of the vertical doors on both sides. .

  According to the engine working machine of the present invention, by joining the side wall located on the upper side of the gantry to the outer surface of the gantry, rainwater flowing down along the side wall passes through the junction between the side wall and the gantry and enters the inside of the casing. Since no intrusion occurs, it is possible to more reliably prevent rainwater from accumulating in the oil barrier and oil from flowing out of the machine. Also, by joining the base and the side wall via the side wall lower joint member welded to the outer surface of the base, there is no need to provide a bolt hole for joining the base, and rainwater is passed through the bolt hole to the inside of the base. There is no intrusion.

  Furthermore, by disposing the lower end of the side wall on the outer surface of the gantry below the upper surface of the gantry and providing a drain hole, rainwater that has entered the side wall from the upper side of the side wall can be discharged out of the machine from the drain hole at the lower end of the side wall It is possible to prevent rainwater from entering the inside of the gantry through the top surface of the gantry. In addition, by joining the lower end of the intake duct to the inner surface of the side wall located outward from the vertical line of the outer surface of the gantry, rainwater that has entered the intake duct from the intake port can flow down along the inner surface of the side wall. It is possible to prevent rainwater from entering the interior of the door or the frame. Furthermore, by forming the sealing surface of the door so that the upper side is located outside, it is possible to prevent rainwater from entering from the sealing surface. Further, by making the side wall of the equipment room containing the engine with such a structure, it is possible to prevent the oil leaked from the engine and the like from being mixed with rainwater.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the state which shows the 1st example of an engine working machine of this invention, and removed the door. It is a front view of the engine work machine which similarly shows the state which closed the door. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is sectional drawing which shows the joining state of a side wall. It is sectional drawing which shows the sealing state of a door. It is sectional drawing which shows the other joining state of a side wall.

  The engine working machine shown in FIGS. 1 to 5 includes a frame 11 having a rectangular shape in plan view, a front side wall 12, a rear side wall 13, a control panel side wall 14, and a control panel side wall 14 erected upward from the four sides of the frame 11. Inside the casing 17 formed by the exhaust air chamber side wall 15 and the top plate 16 covering the upper opening surrounded by the side walls 12, 13, 14, 15, a generator 18 which is one of the working machines, An engine 19 that drives the generator 18 and devices such as a fuel tank 20, an air cleaner 21, a radiator 22, and a muffler 23 are accommodated, and the radiator 22 is disposed between the engine 19 and the muffler 23. An attached partition wall 24 is provided, and the inside of the casing 17 is partitioned by the partition wall 24 into an equipment chamber 25 that houses the engine 19 and the generator 18 and an exhaust chamber 26 that houses an exhaust pipe including the muffler 23. To have. A control panel 27 having a control panel, an output terminal, and the like is provided in the upper half of the control panel side wall 14, and a fuel filler port 28 is provided in the upper part of the fuel tank 20 in the top plate 16. A hanging metal fitting 29 is provided at the center of the plate. An exhaust port 30 is provided in the upper part of the exhaust chamber 26, and a cover 31 that covers the upper part of the gantry 11 between the partition wall 24 and the exhaust chamber side wall 15 is provided in the lower part of the exhaust chamber 26. Is provided.

  The gantry 11 that supports the engine 19 and the generator 18 includes a rectangular bottom plate portion 11a, a peripheral wall portion 11b that stands vertically in a liquid-tight state from four sides of the bottom plate portion 11a, and an upper end of the peripheral wall portion 11b. It has an upper edge portion 11c that protrudes in the horizontal direction toward the inside of the casing, and this gantry 11 has a function as an oil barrier with an opening 11d above. Further, a leg member 32 is provided on the lower surface of the bottom plate portion 11a, and a support member 33 for supporting the engine 19 and the like is provided on the upper surface of the bottom plate portion 11a. Furthermore, a side wall receiving member 34 for joining the front and rear side walls 12 and 13 to the gantry 11 is fixed to the outer surface of the gantry 11 by welding to the intermediate portion in the vertical direction of the outer surface of the peripheral wall portion 11b. The side wall receiving member 34 is formed of an L-shaped member (angle) having a vertical welding piece 34a along the outer surface of the peripheral wall portion 11b of the gantry 11 and a horizontal supporting piece 34b on which the lower end of the side wall is placed. The welding piece 34a is welded and fixed to the outer surface of the peripheral wall portion 11b at a position below the upper edge portion 11c.

  The side walls 12, 13, 14, and 15 arranged so as to surround the periphery of the engine 19 and the generator 18 are basically protruding pieces 35b protruding toward the inside of the casing on the four sides of the rectangular wall panel 35a. A drainage hole 35c that communicates with the inside and outside of the side wall is provided in the lower portion of the projecting piece 35b when the casing is assembled. Lower ends of the front and rear side walls 12 and 13 are supported by the side wall receiving member 34 fixed to the outer surface of the gantry 11 in a state of being arranged outside the gantry 11 and joined by bolts 34c inserted from below. Yes. Further, the side walls 14 and 15 on both sides are formed in a U-shaped horizontal cross-section integrally with the front and rear side walls 12 and 13, and the lower end portion is disposed outside the mount 11.

  In this way, the lower end of each of the side walls 12, 13, 14, 15 on the outer surface of the gantry 11 via the side wall receiving member 34 welded below the upper surface of the upper edge 11c on the outer surface of the peripheral wall portion 11b of the gantry 11, Further, by joining below the upper surface of the gantry 11, rainwater flowing along the outer side wall of the pedestal does not flow out of the machine from the lower end of the side wall and does not enter the gantry 11, and the bolt hole is formed in the gantry 11. Etc., so that rainwater can be prevented from entering the inside of the gantry 11 from the side wall joint portion, and oil leaked from the engine 19 and the fuel tank 20 is collected in an oil barrier formed inside the gantry 11. It is possible to more reliably prevent the water from flowing out of the machine together with the moisture.

  Further, by providing the drain holes 35c in the lower portions of the respective side walls, even if rainwater enters the side walls for some reason or dew condensation occurs on the inner surface of the side walls, these can be removed from the drain holes 35c. It can be discharged out of the machine, and rainwater or the like can be prevented from flowing into the gantry 11.

  The top plate 16 includes a rectangular top plate panel 16a, a side plate 16b obtained by bending four sides of the top plate panel 16a downward, and a lower end of the side plate 16b bent toward the inside of the casing. A lower surface plate 16c and an inner surface plate 16d whose inner end is bent downward. The inner surface plate 16d is joined to the upper portions of the side walls 12, 13, 14, and 15. ing.

  Further, an inspection opening 37 having an inspection door 36 is surrounded by the frame 11 at the lower side, the side walls 12 and 13 at both sides, and the top plate 16 at the upper side. Each is provided in the state. As in the case of the above-described side walls, the inspection door 36 has protruding pieces 36b projecting from the four sides of the rectangular outer panel 36a toward the inside of the casing. However, a locking device 39 is provided on the door end side, and a drain hole 36 c is provided in the protruding piece 36 b on the lower side of the inspection door 36.

  A packing material 40 is attached to the tip of the protruding piece 36b in an endless manner along the outer edge of the inspection door 36 along the lower horizontal direction, the vertical direction on both sides, and the upper horizontal direction. Airtightness and watertightness when the inspection door 36 is closed are ensured by abutting against a door stop provided at the inner edge of the inspection opening 37. In the door contact with the packing material 40, the lower part of the inspection door 36 is bent on the outer surface of the peripheral wall portion 11b of the gantry 11, and the vertical direction on both sides of the inspection door 36 is bent at the tip of the protruding piece 35b toward the inspection opening 37. The formed vertical door contact piece 35d and the upper part of the inspection door 36 are formed by the inner surface plate 16d of the top plate 16, respectively, and the lower end portion of the vertical door contact piece 35d is formed outside the peripheral wall portion 11b located at the lowermost position. It arrange | positions in the state piled up, and it arrange | positions in the state which piled up the both ends of the inner surface board 16d located in the uppermost part on the outer side of the upper end part of the vertical door contact piece 35d, and is located upwards on the outer side of the member located below. It forms so that the member to perform may be piled up sequentially.

  In this way, the door contact with which the packing material 40 abuts, the lower portion is the outer surface of the peripheral wall portion 11b of the gantry 11, the vertical direction is the vertical door contact piece 35d superimposed on the outer surface of the peripheral wall portion 11b, and the upper portion is the vertical door contact. By forming the inner surface plate 16d superimposed on the outer surface of the piece 35d, rainwater flowing down from the top plate 16 along the inner surface plate 16d serving as the upper door is prevented from entering the inside of the vertical door contact piece 35d. In addition, since rainwater flowing down along the outer surface of the vertical contact piece 35d can be prevented from entering the inside of the gantry 11, rainwater can be reliably prevented from entering the casing 17 from the periphery of the inspection door 36. .

  Further, the inspection door 36 is provided with an air inlet 41 for guiding the air sucked from the air inlet 41 to the upper inside of the casing 17 inside the inspection door 36 and for separating rain water accompanying the air. The intake duct 42 is provided. The intake duct 42 is parallel to the outer panel 36a of the inspection door 36 from the upper end of the drainage oblique side plate 42a provided from the lower edge of the intake port 41 toward the inside upper side of the casing 17 and the drainage oblique side plate 42a. The drainage guide plate 42b that rises in the direction and the side closing plate 42c that closes the side of the intake duct 42 are formed in a box shape with an upper portion opened.

  The cooling air sucked into the casing 17 from the air inlet 41 and the rain water accompanying the air have a lower air flow velocity in the air intake duct 42 having a larger ventilation cross-sectional area than the opening area of the air inlet 41. Therefore, rainwater in the air falls due to gravity, flows over the drainage oblique side plate 42a, and is discharged from the lower edge of the intake port 41. At this time, even if rainwater leaks to the inner surface of the outer panel 36a from the junction of the drainage oblique side plate 42a or the side blockage plate 42c and the outer panel 36a, the outer panel 36a passes through the packing material 40 and the protruding piece 36b. The packing material 40 provided on the protruding piece 36b at the lower part of the door is brought into contact with the outer surface of the peripheral wall portion 11b of the mount 11 below the upper edge portion 11c. Therefore, rainwater flowing down along the inner surface of the outer panel 36a does not flow into the inside of the gantry 11 beyond the upper edge 11c of the gantry 11, and the drain hole 36c provided in the protruding piece 36b at the lower part of the door. It is discharged out of the machine.

  The cover 31 provided at the lower part of the exhaust chamber 26 is placed on the upper surface of the upper edge 11c of the gantry 11 and closes the opening 11d above the gantry 11 in the exhaust chamber 26. A plate 31a, a rising piece 31b that rises from one side of the cover plate 31a on the partition wall 24 side along the exhaust chamber 26 side of the partition wall 24, and an outer surface of the peripheral wall portion 11b of the gantry 11 from the other three sides It has a hanging piece 31c bent downward, the rising piece 31b is joined to the lower part of the partition wall 24, and each hanging piece 31c is joined to the outer surface of each peripheral wall portion 11b.

  In this manner, by providing the cover 31 that covers the opening 11d above the gantry 11 at the lower part of the exhaust chamber 26, even if rainwater enters the exhaust chamber 26 from the upper exhaust port 30, the cover 31 is provided. Thus, it can be guided to the outside of the gantry 11, and rain water can be prevented from entering the gantry 11. Furthermore, the rising piece 31b can prevent rainwater from entering the equipment room 25 from the lower part of the partition wall 24, and the hanging piece 31c can cause the rainwater to flow down to the outer surface of the peripheral wall portion 11b. It is also possible to prevent rainwater from entering the inside of the gantry 11 from the joint portion. Further, rainwater on the cover 31 flows from the outer surface of the hanging piece 31c to the lower portions of the side walls 12, 13, and 15 and is discharged out of the machine through the drain holes 35c, so that rainwater may accumulate on the cover 31. Disappear.

  Moreover, the structure shown in the embodiment of FIG. 6 can also be employed for joining the lower end of the side wall and the gantry. In this embodiment, an L-shaped joining member 51 having a vertical panel joining portion 51 a and a horizontal base joining portion 51 b is used, and the panel joining portion 51 a of the joining member 51 is connected to the side wall 52. It welds to the inner surface of the wall panel 52a, and the base joint part 51b is superimposed on the upper surface of the upper edge part 11c of the base 11 and joined by the bolt 53. Also by joining the side wall 52 using such a joining member 51, the lower end of the side wall 52 can be positioned below the upper surface of the gantry 11, so that rainwater flowing down the side wall 52 passes over the gantry 11. Thus, it is possible to prevent intrusion into the inside of the gantry 11 and the oil barrier, and rainwater that has entered inside the side wall 52 can be discharged out of the machine from a drain hole 52b provided at the lower end of the side wall 52.

  In addition, the structure of the engine working machine of this invention is not limited to the said example, For example, rainwater permeates the inside of a mount frame by the cover at the side wall provided with the cover which covers the upper part of a mount frame. Therefore, the side wall of the exhaust chamber may be joined to the cover, and the side wall of the control panel is connected to the operation state of the control panel and the output terminal, between the generator and the output terminal. A structure corresponding to the state of the wiring can be employed. Furthermore, the top plate may be structured like a lid that covers the side plate on the upper outer surface of each side wall. In addition, the side wall receiving member and the joining member can adopt any shape as long as the lower end of the side wall can be arranged below the outer surface of the gantry, particularly the upper surface of the gantry. It can also be formed integrally. Furthermore, an oil breakwater can be provided under the gantry.

  DESCRIPTION OF SYMBOLS 11 ... Mount, 11a ... Bottom plate part, 11b ... Perimeter wall part, 11c ... Upper edge part, 11d ... Opening part, 12 ... Front side wall, 13 ... Rear side wall, 14 ... Control panel side side wall, 15 ... Exhaust chamber side side wall, DESCRIPTION OF SYMBOLS 16 ... Top plate, 16a ... Top plate panel, 16b ... Side plate, 16c ... Bottom plate, 16d ... Inner surface plate, 17 ... Casing, 18 ... Generator, 19 ... Engine, 20 ... Fuel tank, 21 ... Air cleaner, 22 ... Radiator, 23 ... Muffler, 24 ... Partition wall, 25 ... Equipment room, 26 ... Exhaust chamber, 27 ... Control panel, 28 ... Refueling port, 29 ... Suspension fitting, 30 ... Exhaust port, 31 ... Cover, 31a ... Cover plate 31b ... Standing piece, 31c ... Dripping piece, 32 ... Leg member, 33 ... Support member, 34 ... Side wall receiving member, 34a ... Weld piece, 34b ... Support piece, 34c ... Bolt, 35a ... Wall panel, 35b ... Projection piece 35c ... Water drain hole, 5d ... Vertical door contact piece 36 ... Inspection door 36a ... Outer panel 36b ... Projection piece 36c ... Drain hole 37 ... Inspection opening 38 ... Hinge 39 ... Locking device 40 ... Packing material 41 ... Inlet, 42 ... Intake duct, 42a ... Drained side plate, 42b ... Drainage guide plate, 42c ... Side block plate, 51 ... Joining member, 51a ... Panel joint, 51b ... Base joint, 52 ... Side wall, 52a ... Wall panel, 52b ... Drain hole, 53 ... Bolt

Claims (6)

  In an engine working machine that houses an engine and a working machine driven by the engine in a casing, the casing includes a frame that supports the engine and the working machine, a side wall that surrounds the engine and the working machine, An engine work comprising: a top plate that covers an upper portion of the engine and the work machine; and an oil breakwater is formed inside or below the mount, and a lower end portion of the side wall is joined to an outer surface of the mount Machine.   The engine work machine according to claim 1, wherein a lower end portion of the side wall is joined to a side wall receiving member welded to an outer surface of the gantry below a top surface of the gantry.   2. The engine working machine according to claim 1, wherein the lower end of the side wall is disposed outside the gantry below the upper surface of the gantry, and a drainage hole communicating with the inside and outside of the side wall is provided at the lower end of the side wall.   4. The air inlet according to claim 1, wherein the side wall is provided with an air inlet, and the lower end of the air intake duct provided inside the air inlet is joined to the inner surface of the side wall located outside the vertical line of the outer surface of the gantry. The engine working machine according to claim 1.   The engine working machine according to any one of claims 1 to 4, wherein a part of the side wall is a door that can be opened and closed.   A packing material is provided in the lower horizontal direction, the vertical direction on both sides, and the upper horizontal direction of the door, and the door stop in contact with the packing material is provided on the outer surface of the lower horizontal door contact with the lower end of the vertical door contact on both sides. 6. The engine working machine according to claim 5, wherein the upper working door is overlapped and formed on the outer surface of the upper end in the vertical direction on both sides.

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