JPS6040830Y2 - Coating device for pressure air cooling type engine in harvester - Google Patents

Description

[Detailed explanation of the idea] In a suction-cooled engine, it is sufficient to cover only the front of the radiator with a cover that has a filter without sealing the engine, but in order to secure the specified amount of intake air, it is necessary to cover the outside of the front of the radiator as well. Since an intake window is required, the cover protrudes outward by <11 as shown in Figure 10, and an exhaust passage of 12 must be provided inside, which increases the width of the aircraft and worsens the turning performance of the aircraft. At the same time, because of the strong suction from the small intake window, a large amount of straw becomes clogged in the screen at the front of the radiator, which must be removed frequently.

The point-pressure air cooling sacred engine does not require the installation of a side suction section in the exhaust passage or the front of the radiator, so the width of the aircraft can be made narrower, and intake windows can be provided in each direction, making it possible to close the filter eye. Although clogging is extremely rare, if the engine is not sealed, straw will clog the inside of the radiator, reducing cooling performance.

This invention has extremely low filter clogging and can seal the cooling air passage including the engine. A coating device for a pressure-air cooled engine in a harvester is provided that allows periodic tightening of bolts attached to the engine to be carried out extremely easily without removing the engine, and also prevents lubricating oil from overheating as much as possible. This is a harvesting machine in which a pressure-air cooling type engine 9 mounted on a machine base 3 is covered with a dustproof cover 10, and the engine 9 is detachably installed at the bottom of the machine. The oil pan 25 is inserted between the vertical and horizontal frame members so as to be exposed downward, and the bottom cover 14 is extended outward from the outer periphery on both sides of the bottom of the engine 9, and is supported on the back side. The frame board 15 is erected,
The dustproof cover 10 is configured in a box shape with a continuous opening from the bottom surface to the rear surface, and the outer lower edge of the dustproof cover 10 is hinged to the outer edge of the outer bottom cover 14 to form the dustproof cover 1.
0 is rotated outward to expose the entire engine 9, and when rotated inward, the edge of the lower opening of the dustproof cover 10 comes into close contact with the bottom cover 14, and the rear side It is characterized in that the edge of the opening is configured to be in close contact with the support frame plate 15, and the dustproof cover 10 is detachably attached to the support frame plate 15.

The present invention will be explained in more detail with reference to the embodiment shown in the drawings below. 1 is a threshing device mounted on one side of a machine 3 having a traveling device 2, and a reaping device 4 is movable up and down in front of the threshing device 1. A control panel 5, a seat 6, a grain tank 7, and a pedestal 8 are installed in order from the front on the other side of the machine base 3, and behind that is a pressure air cooling type engine 9. It is mounted covered with a dustproof cover 10.

A radiator 12 is provided immediately before a pressure fan 11 which is pivotally supported on the outside of the engine 9 and blows cooling air from inside to outside, and an air cleaner 13 is provided above.

In addition, a bottom cover 14 is provided at the bottom of the engine 9 extending toward the lower and front surfaces of the radiator 12 and toward the threshing device 1 side, and the portion of the bottom cover 14 extending toward the threshing device 1 side is provided with an outer side. A support frame plate 15 with bent edges is provided upright, and the upper part of the support frame plate 15 is integrally connected to the threshing device 1 by stays 15a, 15a.

Furthermore, the dustproof cover 10 is constructed of a box-like body with an open bottom and a portion facing the support frame plate 15, and is provided with a sponge-like filter 16 on the top, outer upper half, and front surface. A covered intake window 17 is provided, and the outer surface of the filter 16 of the outer and front intake windows 17.17 is covered with nets 18, 18, and an exhaust window is provided at a portion facing the radiator 12. A net 20 is stretched over 19.

The outer lower part of the dustproof cover 10 is rotatably supported by a fulcrum pin 21 at the tip of the base which is bent so as to bypass the radiator 12 of the engine base 9a. When rotated outward, the engine 9 is fully opened as shown in FIGS. 2 and 3.

Note that a seal 22 made of sponge or rubber is fixed to the opening edge of the dustproof cover 10, so when the dustproof cover 10 is closed, the clamps 23 attached to the support frame plate 15 are attached to the front and rear surfaces of the dustproof cover 10. When fixed by hooking on a certain latch 24, the seal 22 comes into close contact with the support frame plate 15 and the bottom cover 14, and the engine compartment is sealed.

In addition, since the filter 16 at the top of the dustproof cover 10 is covered with a removable cover plate 16a that is open only at the front, the dust is discharged from the dust outlet at the rear of the threshing device 1, a cutter, a straw tying machine, etc. Or, it is designed to prevent you from inhaling the straw and dust that is generated.

The filter 16 above the radiator 12 is attached with a clamp and a hook, and the filter 16 on the front is attached with a screw so that they can be opened and closed or detached.
This makes it easier to replace the engine 6 and perform partial maintenance and inspection of the engine 9.

Reference numeral 24 denotes a pair of front and rear mounting frames provided on the machine base 3 consisting of a pair of left and right members 3', 3', which are attached to the engine base 9.
a, and supports the member 3'.

3' and the mounting frames 24, 24 are formed in a space, so the oil pan 25 screwed onto the bottom of the engine 9 protrudes into the space and can be freely attached and detached from below. When this oil pan 25 is removed, the screw attached to the rough flank shaft at the base of the piston rod can be loosened and the piston can be pulled out together with the piston rod upward to replace the piston ring, or repairs can be carried out by periodically tightening the screw. Or maintenance work can be easily performed.

Further, a fuel pump 26 and a fuel filter 27 are attached to the outer surface of the mounting frame 24 and below the bottom cover 14 at the rear of the engine 9, and the outer surface thereof has a side plate 28 opening/closing window 28b having a cutout window 28a. Since the fuel pump 26 and the fuel filter 27 are covered by the fuel pump 26, overheating of the fuel pump 26 and the fuel filter 27 can be prevented, and maintenance and inspection of the fuel pump 26 and the fuel filter 27 can be easily performed.

29 is a muffler attached to the tip of the exhaust pipe 30,
The exhaust pipe 30 descends along the front surface of the engine 9, passes through the bottom plate 14, passes through the front side of the mounting frame 24, and projects outward, and the through hole 14a is formed to allow vibration of the exhaust pipe 30. Since the diameter is large, the through hole 14a of the bottom plate 14
As shown in FIGS. 6a, b, and c, a seal 31 made of glass fiber is tightly fitted onto the upper or lower surface of the bottom plate 14, and is held down by a holding plate 32, which Either by screwing as shown in figure a, or by tightening with wire clamp 33 as shown in figure b, or by tightening with spring 34 as shown in figure b.
It may be crimped by.

In the drawing, 35 is an output pulley of the engine 9, 36 is a sponge or rubber seal, and 37 is an oil drain plug.

As described above, the present invention includes a harvester in which a pressure air cooling type engine 9 mounted on a machine stand 3 is covered with a dustproof cover 10, and an oil pan in which the engine 9 is detachably installed at the bottom of the harvester. 25 are inserted between the vertical and horizontal frame members so as to be exposed downward, and a bottom cover 14 is provided extending outward from the outer periphery on both sides of the bottom of the engine 9, and a support frame plate is provided on the back side. 15 is set upright, the dustproof cover 10 is configured in a box shape with a continuous opening from the bottom surface to the rear side, and the outer lower edge of the dustproof cover 10 is hinged to the outer edge of the outer bottom cover 14. and rotate the entire dustproof cover 10 outward to remove the engine 9.
When the dustproof cover 10 is rotated inward, the edge of the lower opening of the dustproof cover 10 is brought into close contact with the bottom cover 14, and the edge of the back opening is brought into close contact with the support frame plate 15.
Since the dustproof cover 10 is removably attached to the support frame plate 15, the dustproof cover 10 can be rotated outwardly centering on the outer lower part to expose the entire engine 9. This makes it possible to perform maintenance and inspection of each part of the engine 9 extremely easily.

In addition, regardless of the shape of the machine base 3, the lower edge of the dustproof cover 10 is in close contact with the bottom cover 14, and the rear edge is in close contact with the support frame plate 1.
5, the dustproof cover 10 has an open bottom and rear side, but it firmly supports the dustproof cover 10 and completely seals the cooling air passage surrounding the engine 9, preventing air and straw debris from entering and cooling it. The effect can be improved.

Moreover, the bottom surface of the oil pan 25 is not covered by the bottom cover 14 and is exposed downward from between the vertical shaft frame members, so that waste oil can be easily drained, and the piston ring When the piston is worn out, the piston can be taken out together with the piston rod by removing the oil pan 25 and pulling out the tightening bolt at the base of the piston rod from below without removing the engine 9 from the machine base 3. This allows for quick and easy parts replacement.

Also, the tightening bolt at the base of the piston rod is
If the oil pan 25 is used for a long period of time, it will loosen, and if this becomes severe, the cylinder block and other parts will be damaged. However, when performing periodic inspections to prevent such accidents, simply remove the oil pan 25 and tighten the bolts. Can be easily tightened.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a combine harvester, Figs. 2 and 3 are perspective views showing the dustproof cover in an open state, and Fig. 4 is a perspective view of the engine and dustproof cover. A sectional view of the lower part of the cover, Fig. 5 is a front sectional view, Fig. 6 a, b
, c is a sectional view of the holding part of the exhaust pipe, FIG. 7 is a plan sectional view,
FIG. 8 is a perspective view of the upper part of the dustproof cover, FIG. 9 is a front sectional view showing the relationship between the threshing device and the engine, and FIG. 10 is a front view of the conventional example. 3... Machine base, 9... Engine, 10.
・Curved dust cover, 14...Bottom cover, 15・
...Support frame plate, 16...Filter, 1
7...Intake window, 19...Exhaust window, 21
...Fullin pin, 25...Oil pan.

Claims (1)

[Scope of utility model registration request] In a harvester in which a pressure air cooling type engine 9 mounted on a machine base 3 is covered with a dustproof cover 10, the engine 9
An oil pan 25, which is removably provided at the bottom of the engine 9, is inserted between the vertical and horizontal frame members so as to be exposed downward, and the bottom cover 14 extends outward from the outer periphery on both sides of the bottom of the engine 9. A support frame plate 15 is erected on the rear side, and the dustproof cover 10 is constructed in a box shape with a continuous opening from the bottom to the rear side, and the outer lower edge of the dustproof cover 10 is opened outward. The dustproof cover 10 is hinged to the outer edge of the bottom cover 14 so that the entire engine 9 can be exposed by rotating the entire dustproof cover 10 outward, and the dustproof cover 10 can be rotated inwardly to expose the entire engine 9.
The edge of the lower opening of is in close contact with the bottom cover 14, and the edge of the back opening is in close contact with the support frame plate 15,
A covering device for a pressure air cooling type engine in a harvester, characterized in that the dustproof cover 10 is detachably attached to a support frame plate 15.