JPH0413943Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an engine cover that can be opened and closed in a vertically long engine compartment surrounding a lower engine and an upper radiator in a combine harvester.

[Prior art]

Since combine harvesters often travel on roads on their way to fields, they are treated as small special vehicles under road traffic regulations. Therefore, in order to keep the machine width within the limits stipulated by law, especially in the case of multi-row mowing, a radiator device is installed above the engine, which has traditionally been installed on one side of the threshing device. The lower engine and upper radiator system were surrounded by a vertical engine compartment.

[Problem that the invention attempts to solve]

However, in the case of a combine harvester in which the radiator device is installed above the engine, the radiator device and its water supply port are located at a high place, so it is necessary to inspect and clean the dust filter of the radiator device. In addition to maintaining the engine, when supplying water to the water supply port of the radiator device, a stepladder or the like must be prepared, which poses a problem in that the preparation work is extremely troublesome.

Therefore, the present invention was devised to solve the above-mentioned conventional problems, and effectively utilizes the lower cover, which is formed by dividing the engine cover that opens and closes the engine compartment into upper and lower parts, and allows inspection of the radiator device. - The purpose of this invention is to provide an engine cover for a combine harvester that can be used not only for cleaning and engine maintenance, but also for easily supplying water to the water supply port of the radiator device.

[Means to solve the problem]

The engine cover for a combine according to the present invention that achieves the above object has a vertically elongated engine compartment 7 surrounding the lower engine 15 and the upper radiator device 17, and an engine cover 45 that opens and closes the outer surface of the engine compartment. It is composed of an upper cover 47 that can be opened and closed freely using a shaft as a rotational fulcrum, and a lower cover 50 that can be opened and closed freely using a horizontal shaft 49 provided at the lower end as a rotational fulcrum, and the lower cover 50 is opened to a substantially horizontal state. It is structured as follows.

[Effect]

Therefore, when inspecting, servicing, and supplying water to the radiator device 17 installed at a high place above the engine 15, the upper cover 47 and the lower cover 50 are removed without preparing a stepladder or the like as in the conventional case. With a simple operation of opening the radiator device 1, it is possible to get on the lower cover 50 which is opened to the horizontal position.
7 and maintenance of the engine 15, as well as easily supplying water to the water supply port 43 of the radiator device 17.

〔Example〕

Hereinafter, one embodiment shown in the drawings will be described in detail.

As shown in FIG. 3, the combine 1 is run by a traveling device 3 around which a pair of left and right crawlers 2, 2 that touch the ground are wrapped around.
A threshing device 5 is installed on one side of the machine, a front grain tank 6 and a rear engine room 7 are installed on the other side of the machine, and in front of the machine platform 4 there is a threshing device 5 installed on the other side of the machine. A pre-processing device 9 is provided for harvesting and transporting grain to the rear threshing device 5, and an operating unit 10 is also provided on the machine platform 4 in front of the grain tank 6. Reference numeral 11 is a cutter for shredding straw after threshing, and reference numeral 12 is a grain discharging device configured to be able to rise and fall freely and for discharging the grains in the grain tank 6.

In the engine compartment 7, there is a vibration-proof rubber 1 on the machine base 4.
An engine 15 mounted through 6 is disposed,
At the top of this engine 15 is a radiator device 17.
is installed. The vertically long engine chamber 7 surrounding the lower engine 15 and the upper radiator device 17 is configured as follows.

That is, as shown in FIGS. 1 and 2 and FIGS. 4A and 4B, the engine compartment 7 includes vertical columns 19 fixed to the machine base 4 and extending upward, consisting of two vertical columns 19 at the front and the rear,
19. Front and rear horizontal columns 21, 21 that horizontally connect and fix the vertical columns 19, 19 and the threshing device 5 above the engine 15, and the horizontal columns 21 are connected downward on the side (inside) of the threshing device 5. It has a frame structure consisting of two front and rear vertical columns 20, 20 that are supported from the sides, and a radiator device 17 is mounted on these horizontal columns 21, 21.
is fixed.

The periphery of this frame structure is partitioned by a front wall 22 and a rear wall 23 that extend upward on both the front and rear sides, and is partitioned on the inside by an inner wall 24 on the side of the threshing device 5, which slopes upward toward the side of the threshing device 5. The engine chamber 7 is partitioned by an upper wall 25 having an air outlet 26 opened on an inclined surface, and the outer surface of the engine chamber 7 is covered by an engine cover 45 that can be opened and closed.

The engine 15 in the engine room 7 is arranged so that the fan 27 faces outward and the flywheel 29 faces inward, and the radiator device 17 is provided with an air intake pipe 30 having a square cross section. is connected to the radiator 35 from the outside through the net 31, the filter 32, and the space 33, and a cooling fan 34 is installed inside the radiator 35.
is installed.

As the fan 34 rotates, air is sucked to pass through the radiator 35 through the net 31, filter 32, and space 33 in the air suction tube 30, and the air discharged from the fan 34 is sent to the air outlet 26. It is now blown out of the aircraft. The fan 34 is fixed to a rotating shaft that is rotatably supported by a bearing 37, and as shown in FIG. The other end is fixed to the horizontal part of a column 36 fixed to the front wall 22. This fan 34 is driven by a pulley 39 fixed to the flywheel 29 side of the engine 15, and this pulley 39 also controls the threshing device 5 and the traveling
Three systems of the pre-processing device are each driven and rotated. Further, the radiator 35 is connected to the water cooling chamber of the engine 15 via a connecting pipe 40 and a connecting pipe 41, respectively, and a water inlet 43 provided at the top of the radiator 35 is opened and closed through a water inlet 44 opened in the upper wall 25. It is becoming more and more like this.

The engine cover 45 provided on the outer surface of the engine compartment 7 can be opened and closed laterally using a plurality of hinges 46 fixed to the rear wall 23, that is, using the vertical axis of the hinges 46 as a pivot point. It consists of an upper cover 47 and a lower cover 50 that can be opened and closed in a vertical state covering the outer surface and in an open substantially horizontal state using a horizontal shaft 49 provided at the lower end as a rotation fulcrum. The lower cover 50 is provided at a length on which the worker's feet F can rest when opened in a substantially horizontal state (see Fig. 1), and both front and rear sides of the lower cover 50 are attached to the vertical columns 19, 19 by chains or reinforcing rods 51, etc. It is configured to be able to support the weight of the worker without being connected and deformed. In addition, an intake port 52 on the top plate side that communicates with the air intake cylinder 30, an intake port 53 on the side surface side, and an intake port 54 that communicates with the fan 27 of the engine 15 on the lower side are opened in the upper cover 47, respectively.
A partition plate 55 fixed to the engine compartment 7 side has a hole through which the outside of an air cleaner 56 fixed to the engine 15 faces. It is set to be in a fixed state at 7.

Therefore, even if the radiator device 17 is installed at a high place above the engine 15, inspection and
Maintenance, water supply, etc. can be carried out using the upper cover 47 and lower cover 50 without the need for a stepladder or the like as in the past.
This can be done by simply opening the lower cover 50 and standing on the lower cover 50 which is opened to the horizontal position.
Although not shown, the lower cover 50 can be easily moved up and down by using a handle fixed to the grain tank 6 or the like.

Further, the fan 34 of the radiator device 17 may be driven and rotated via the intermediate shaft 70 without being directly driven by the engine 15 as in the previous example. In other words, as shown in FIGS. 5 to 7, the pulley 39 attached to the flywheel 29 of the engine 15
The threshing device 5 and the travel/pretreatment device are driven by a pulley 66 fixed to the crankshaft 65 of the engine 15, which drives the water pump drive shaft 67 and the alternator drive shaft 69. At the same time, the intermediate shaft 70 is driven to rotate.

This intermediate shaft 70 connects to an exhaust manifold 71 that protrudes forward from the engine 15 body.
The intermediate shaft 7
A cooling fan 34 of the radiator device 17 is rotatably driven by a pulley 73 fixed to the inner shaft end of the exhaust manifold 71, and a muffler 74 is provided at the front end of the exhaust manifold 71 at a position close to the bearing 72. One side is directly fixed, and a tail pipe 77 connected to the muffler 74 extends downward and further slopes rearward, with the end facing below the engine compartment 7.

The intermediate pulley 75 fixed to the outer shaft end of the intermediate shaft 70 has three air blowing blades 78 and a mounting portion 79 on its boss portion, the details of which are shown in FIGS. 8A and 8B.
A blower impeller 80 is fixed with bolts or the like.

In this way, the engine 15 and the radiator device 1
Intermediate shaft 70 provided between cooling fan 34 of No. 7
By using this and fixing the intermediate pulley 75 provided with the blower impeller 80 to the intermediate shaft 70,
The muffler 74 installed in the engine compartment 7 is effectively cooled.

Further, as shown in FIG. 8, a guard 60 having a substantially U-shape in plan view that covers the fan 27 of the engine 15 may be attached and fixed at both ends to the front and rear vertical columns 19, 19. In other words, this guard 60 includes three guard rods 61 that protrude horizontally from the outer surface of the vertical column 19, and the guard rods 61.
It consists of two guard rods 62 located between and projecting briefly from the outer surface of the vertical column 19, and a connecting rod 63 that connects and fixes each of these guards in the vertical direction. Further, both ends of a linear guard rod are fixed to the inside of the uppermost guard rod 61, so as to stably support the worker's foot F.

This guard 60 is intended to cover the fan 27 that protrudes from the engine compartment 7 into the engine cover 45 to prevent danger, but the protruding length of the guard rod that constitutes this guard 60 is changed to a longer or shorter length. This ladder-like guard 60 can also be used as a ladder.
By climbing to the upper stage using the
Inspection and maintenance of the radiator device 17 disposed above the radiator 5, water supply, etc. can be performed quickly and easily.
Even in this case, if the lower cover 50 which is opened horizontally is used, the guard 60 can be moved up and down more easily. Further, this guard 60 can also be used as a handle when going up and down to the lower cover 50.

[Effect of idea]

In short, the engine cover for a combine harvester according to the present invention has a vertically elongated engine compartment that surrounds the lower engine and the upper radiator device, and the engine cover that opens and closes the outer surface of the engine compartment is opened and closed using a vertical axis as a rotational fulcrum. It consists of an upper cover that can be fixed freely, and a lower cover that can be opened and closed using a horizontal axis provided at the lower end as a rotation fulcrum, and the lower cover is configured to open to a nearly horizontal position, so that it can be positioned above the engine. Although the radiator equipment is installed at a high place, when inspecting, maintaining, and supplying water to the radiator equipment, it is possible to simply open the upper and lower covers without preparing a stepladder or the like as in the past. With a simple operation, the operator can stand on the lower cover that is opened to the horizontal position, so that the worker can not only inspect and clean the radiator device, maintain the engine, but also easily supply water to the water inlet of the radiator device.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a functional explanatory diagram showing a longitudinal section of the engine compartment, Fig. 2 is a longitudinal sectional rear view of the engine compartment, Fig. 3 is an overall side view of the combine harvester, and Fig. 4 is a longitudinal sectional view of the engine compartment. Figure A is a plan view showing the engine cover in the closed state, Figure 4B is a plan view showing the engine cover in the open state, Figure 5 is an enlarged longitudinal sectional front view of the engine compartment showing another example of the transmission device, and Figure 6 is a side view of Fig. 5, Fig. 7A is a plan view of the blower wheel, Fig. 7B is a side view of the blower wheel, and Fig. 8 is a longitudinal section of the engine room showing the state in which a guard covering the fan is installed. FIG. 1... Combine harvester, 7... Engine room, 15...
...Engine, 17...Radiator device, 45...
Engine cover, 46...hinge, 47...upper cover, 49...horizontal shaft, 50...lower cover.

Claims (1)

[Scope of utility model registration request] A vertically elongated engine compartment surrounds the engine at the bottom and the radiator unit at the top, and an engine cover that opens and closes the outer surface of the engine compartment is provided at the bottom end and an upper cover that can be opened and closed freely around a vertical axis. An engine cover for a combine harvester, which is composed of a lower cover that can be opened and closed freely using a horizontal axis as a rotational fulcrum, and the lower cover is configured to open to a substantially horizontal state.