JP6938411B2 - combine - Google Patents

Description

The present invention relates to a combine.

For example, in the combine disclosed in Patent Document 1 below, a plurality of coolers (oil coolers and intercoolers) are densely arranged on the side of the cooling fan of the radiator. Since the cooling fan generates cooling air by sucking the outside air, dust easily adheres to the coolers. Therefore, regular maintenance work for removing dust and the like is required, and a combine that can be easily maintained is desired.

Japanese Unexamined Patent Publication No. 2017-200469

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a combine capable of easily maintaining coolers.

The combine according to the present invention includes an engine and
A radiator that cools the cooling water of the engine,
A cooling fan that cools the radiator,
An oil cooler and an intercooler arranged on the opposite side of the cooling fan with the radiator in between are provided.
The oil cooler is configured to be openable upward or downward with respect to the radiator frame supporting the radiator, which rotates with the upper end side or the lower end side as a rotation fulcrum.

Since the oil cooler is configured to open upward or downward with respect to the radiator frame, it can be cleaned with the oil cooler open, and the oil cooler can be easily maintained.

In the present invention, the oil cooler may be configured to be openable downward with respect to the radiator frame, and the intercooler may be configured to be openable upward with respect to the radiator frame.

Normally, the oil cooler is heavier than the intercooler, so it is easier to maintain the oil cooler by opening it downward instead of lifting it upward. Further, by opening the oil cooler downward and the intercooler upward, it is possible to prevent dust removed when cleaning one cooler from adhering to the other cooler.

In the present invention, a support frame for supporting one of the oil cooler and the intercooler is further provided.
The other of the oil cooler and the intercooler and the support frame may be arranged with a gap.

According to this configuration, since the outside air is directly supplied to the radiator through the gap, the radiator can be appropriately cooled.

In the present invention, the oil cooler includes a first oil cooler and a second oil cooler.
The support frame includes a vertical frame that supports the first oil cooler from both sides, and a horizontal frame that connects the vertical frames to support the second oil cooler.
The second oil cooler is arranged with a gap with respect to the first oil cooler and the vertical frame.
One of the first oil cooler and the second oil cooler may be an oil cooler for a transmission, and the other may be an oil cooler for a working machine.

According to this configuration, more outside air is directly supplied to the radiator by providing a gap between the first and second oil coolers and between the second oil cooler and the support frame (vertical frame). , The radiator can be cooled properly.

Left side view of combine Right side view of the combine Plan view of combine Right side view of the engine room Perspective view of the engine room Right side view of oil cooler Perspective view with the oil cooler open Perspective view with the intercooler open

An example of the combine according to the present invention will be described.

[Overall structure of combine harvester]
1 to 3 show the left side surface, the right side surface, and the plane of the combine 100 of the present embodiment, respectively. In the figure, the front-back direction, the left-right direction, and the up-down direction of the combine 100 are indicated by arrows. The combine 100 includes a traveling device 1, a cutting device 2, a threshing device 3, a sorting device 4, a storage device 5, and a power device 6.

The traveling device 1 is provided below the airframe frame 10. The traveling device 1 includes a transmission 11 and a pair of left and right crawler devices 12. The transmission 11 transmits the power of the engine 61 mounted on the body frame 10 to the crawler device 12. The crawler device 12 causes the combine 100 to travel in the front-rear direction and turns the combine 100 in the left-right direction.

The cutting device 2 is provided in front of the traveling device 1. The cutting device 2 includes a reel 21, a cutter (cutting blade) 22, an auger (horizontal feed screw) 23, and a feeder 24. The reel 21 rotates to guide the grain culm in the field to the cutter 22. The cutter 22 cuts the culm guided by the reel 21. The auger 23 collects the culms cut by the cutter 22 at a predetermined position. The feeder 24 supplies the grain culms cut by the cutting device 2 to the threshing device 3 via the feeder house 25. The feeder house 25 has a built-in conveyor that conveys the culms collected by the auger 23 to the rotor.

The threshing device 3 is provided behind the cutting device 2. The threshing device 3 includes a handling cylinder, a net, and a front rotor. The handling barrel threshes the culm by rotating. In addition, the handling cylinder conveys the grain culm by rotating. The receiving net supports the culm transported by the handling cylinder and drops the threshing device 4. The front rotor sends the culm carried by the feeder 24 to the threshing device 3. In addition, the front rotor has a function of not only transporting the culm but also performing preliminary threshing (pre-threshing).

The sorting device 4 is provided below the threshing device 3. The sorting device 4 includes a swing device and a blower device (wall insert). The rocking device sifts the threshing device to sort the grains. The grains sorted by the rocking device are conveyed by the grain transfer device and are charged into the grain tank 51 via the input port. The blower assists in the sorting of grains by blowing off impurities such as straw debris contained in threshing. Contaminants such as straw debris are discharged to the outside from an outlet (not shown) provided at the rear of the sorting device 4.

The storage device 5 is provided on the right side of the threshing device 3 and the sorting device 4. Therefore, the threshing device 3, the sorting device 4, and the storage device 5 are arranged side by side above the machine frame 10. The storage device 5 includes a grain tank 51. The grain tank 51 stores the grains transported from the sorting device 4. The discharge auger 52 is used when discharging the grains in the grain tank 51. The discharge auger 52 is configured to be rotated in the vertical and horizontal directions when the grain is discharged, so that the grain can be discharged to an arbitrary place.

The driving unit 13 is provided in front of the Glen tank 51 on the right front side of the airframe frame 10. The driver's seat 13 is provided with a driver's seat 14 on which the operator is seated and a steering handle 15 arranged in front of the driver's seat 14, and various operating tools such as a speed change lever, a clutch lever, and switches are installed around the driver's seat 14. Is placed.

The power device 6 is provided below the operating unit 13 and in front of the storage device 5. The power unit 6 includes an engine 61 housed in the engine room 60 and an engine room cover 60a that covers an opening on the right side of the engine room 60. The engine 61 of the present embodiment is a diesel engine, and converts heat energy obtained by burning fuel into kinetic energy. More specifically, the engine 61 converts the heat energy obtained by burning the fuel into the power for driving each part such as the traveling device 1.

The engine room cover 60a has a substantially pentagonal shape as shown in FIG. The engine room cover 60a can be opened and closed in the front-rear direction around a vertical axis provided on the rear end side.

[Configuration in the engine room]
4 and 5 are a right side view and a perspective view of the engine room 60 with the engine room cover 60a removed.

In the engine room 60, an engine 61 arranged below the operation unit 13, a cooling fan 62 rotationally driven by the engine 61, a radiator 63 for cooling the cooling water of the engine 61, and a cooling fan sandwiching the radiator 63 are interposed. An oil cooler 64 and an intercooler 65, which are arranged on the opposite side of the 62, are provided.

The cooling fan 62 sucks outside air by rotating with the engine 61 as a drive source. The cooling air generated by the cooling fan 62 sucking the outside air flows toward the engine 61 via the oil cooler 64, the intercooler 65, and the radiator 63. The cooling fan 62 is arranged in front of the central portion in the front-rear direction of the engine room 60 (see FIG. 4).

The radiator 63 is provided on the outside of the cooling fan 62, specifically on the right side of the cooling fan 62. The radiator 63 is attached to the radiator frame 631 having a square frame shape in a side view. A shroud is provided between the radiator 63 and the cooling fan 62. The shroud is a member for efficiently applying the cooling air generated by the cooling fan 62 to the radiator 63. The shroud is a box-shaped member having the same size as the radiator 63, and the entire surface of the radiator 63 side is open, and the surface of the cooling fan 62 side has a diameter slightly larger than the diameter of the cooling fan 62. The hole 62a is formed.

The oil cooler 64 is provided on the front side of the engine room 60. The oil cooler 64 includes a transmission oil cooler 66 (corresponding to a first oil cooler) and a working machine oil cooler 67 (corresponding to a second oil cooler). The transmission oil cooler 66 and the work machine oil cooler 67 are arranged one above the other. A fuel cooler 68 (see FIG. 7) for cooling the fuel supplied to the engine 61 is provided on the left side of the work machine oil cooler 67 (on the back side of the engine room 60).

The amount of cooling air is large around the cooling fan 62, specifically, around the suction hole 62a of the shroud. In the present embodiment, the transmission oil cooler 66 having a large air pressure loss is arranged near the cooling fan 62, and the oil cooler 67 for a work machine and the fuel in which the air pressure loss is increased by stacking them in a side view are arranged. A cooler 68 is placed. This makes it easier for the air to flow to a portion where the air flow tends to be poor because it is far from the cooling fan 62, specifically, to the rear portion of the radiator 63.

FIG. 6 is a right side view of the oil cooler 64. The oil cooler 66 for a transmission and the oil cooler 67 for a work machine are supported by an oil cooler frame 641 (an example of a support frame). The oil cooler frame 641 is composed of two vertical frames 641a and 641b extending in the vertical direction and a horizontal frame 641c connecting the upper ends of the two vertical frames 641a and 641b. The vertical frames 641a and 641b support the transmission oil cooler 66 from both sides in the front-rear direction. The horizontal frame 641c supports the working machine oil cooler 67 from above.

The transmission oil cooler 66 is connected to the transmission 11. The transmission oil cooler 66 cools the transmission oil by exchanging heat with the cooling air. The width of the transmission oil cooler 66 in the front-rear direction is substantially the same as the length of the horizontal frame 641c.

The work machine oil cooler 67 is arranged on the work machine hydraulic circuit. The working machine oil cooler 67 cools the working machine oil by exchanging heat with the cooling air. The width of the working machine oil cooler 67 in the front-rear direction is shorter than the length of the horizontal frame 641c, and the working machine oil cooler 67 has gaps S1 and S2 between the vertical frames 641a and 641b. Further, the working machine oil cooler 67 is arranged so as to have a gap S3 with the transmission oil cooler 66. By providing these gaps, the outside air is directly supplied to the radiator 63 through the gaps S1, S2, and S3, and the radiator 63 can be appropriately cooled.

The first and second working machine oil hoses 67a and 67b for supplying or discharging the working machine oil are connected to the lower part of the working machine oil cooler 67. The first and second working machine oil hoses 67a and 67b are arranged side by side in the front-rear direction. The first and second working machine oil hoses 67a and 67b extend to the engine 61 side via the lower frame 631a of the radiator frame 631.

The oil cooler 64 is configured to be open downward with respect to the radiator frame 631 so that the upper end side rotates with the lower end side as a rotation fulcrum. The oil cooler frame 641 can rotate about a rotation shaft 641d extending rearward from the front frame 631b of the radiator frame 631. The front end of the rotating shaft 641d is fixed to the front frame 631b, and the rear end is fixed to the bracket 631e provided on the lower frame 631a. The rotation shaft 641d penetrates the vertical frames 641a and 641b of the oil cooler frame 641, and the oil cooler frame 641 can rotate around the rotation shaft 641d.

FIG. 7 shows an open state in which the oil cooler 64 is opened. In order to open the oil cooler 64, the two wing bolts 642 and 642 that fix the horizontal frame 641c of the oil cooler frame 641 to the upper frame 631c of the radiator frame 631 are removed, and the oil hoses 67a for the first and second working machines are removed. , 67b are removed from the two knob bolts 643 and 643 that secure the radiator frame 631 to the lower frame 631a.

A substantially U-shaped handle 644 for gripping when opening and closing the oil cooler 64 is welded and fixed to the upper end of the vertical frame 641a on the rear side of the oil cooler frame 641. On the other hand, a stopper plate 645 is welded and fixed to the lower end of the vertical frame 641a. The stopper plate 645 has a side surface 645a and a bottom surface 645b arranged in a substantially L shape. The side surface 645a is fixed to the front surface of the vertical frame 641a, and the bottom surface 645b rotates together with the vertical frame 641a. In the closed state shown in FIG. 5, the bottom surface 645b is non-contact with the upper surface of the lower frame 631a of the radiator frame 631 (see FIG. 4) and is inclined. When the oil cooler 64 is rotated from the closed state shown in FIG. 5 to the open state shown in FIG. 7, the bottom surface 645b comes into contact with the upper surface of the lower frame 631a of the radiator frame 631 and the oil cooler frame 641 The rotation can be stopped.

The intercooler 65 is provided on the rear side of the engine room 60. The intercooler 65 is arranged on the intake path of the engine 61. The intercooler 65 cools the high-temperature intake air pressurized by the supercharger by heat exchange with the cooling air. The intercooler 65 is attached to the upper frame 631c of the radiator frame 631 by a mounting plate 651 fixed to the upper end. The intercooler 65 has a gap S4 (see FIG. 4) with the oil cooler frame 641. By providing the gap S4, the outside air is directly supplied to the radiator 63 through the gap S4, and the radiator 63 can be appropriately cooled.

At the lower end of the intercooler 65, a horizontal plate 652 extending in the front-rear direction and a gripping rod 653 extending downward from the horizontal plate 652 are provided. The gripping rod 653 is fixed to the upper surface of the lower frame 631a of the radiator frame 631 in the closed state of the intercooler 65 shown in FIG. 5, and supports the intercooler 65 from below. On the other hand, when opening the intercooler 65, the intercooler 65 can be lifted by holding the gripping rod 653.

First and second air hoses 65a and 65b for supplying or discharging air are connected to the upper part of the intercooler 65. The first and second air hoses 65a and 65b are arranged side by side in the front-rear direction. The first and second air hoses 65a and 65b extend to the engine 61 side via the mounting plate 651.

The intercooler 65 is configured to be openable upward with respect to the radiator frame 631 so that the lower end side rotates with the upper end side as a rotation fulcrum. As described above, the upper part of the intercooler 65 is attached to the radiator frame 631 via the mounting plate 651. By removing the wing bolt 654 that fixes the mounting plate 651 to the radiator frame 631, the first and second parts are removed. Only the air hoses 65a and 65b of the above will be supported from above. Therefore, the intercooler 65 can be opened upward with the first and second air hoses 65a and 65b as rotation fulcrums by bending the first and second air hoses 65a and 65b.

FIG. 8 shows an open state in which the intercooler 65 is opened. In order to open the intercooler 65, in addition to the above-mentioned wing bolt 654, the wing bolt 655 that fixes the rear end of the horizontal plate 652 to the rear frame 631d of the radiator frame 631, and the lower end of the gripping rod 653 are the lower frame of the radiator frame 631. Remove the wing bolt 656 that secures it to 631a.

A support stay 657 that holds the intercooler 65 in the open state is rotatably supported at the rear portion of the horizontal plate 652. The base end side of the support stay 657 is rotatably supported by the horizontal plate 652, and the tip end side can be rotated. In the closed state of the intercooler 65 shown in FIG. 5, the support stay 657 is fixed to the clip 658. On the other hand, in the open state of the intercooler 65 shown in FIG. 8, the support stay 657 is removed from the clip 658, and the tip end side of the support stay 657 abuts on the lower surface of the locking projection 659 provided on the radiator 63 side. The intercooler 65 can be held in the open state.

In the above-described embodiment, an example is shown in which the oil cooler 64 is opened downward and the intercooler 65 is opened upward. According to this configuration, it is possible to prevent dust removed when cleaning one cooler from adhering to the other cooler, which facilitates maintenance. However, the opening direction of the oil cooler 64 and the intercooler 65 is not limited to this, and the oil cooler 64 may be opened upward and the intercooler 65 may be opened downward. Further, both the oil cooler 64 and the intercooler 65 may be opened upward or downward. By opening both in the same direction, it becomes easier to open the oil cooler 64 and the intercooler 65.

In the present embodiment, an example of a conventional combine is shown, but the present invention is not limited to this, and the present invention may be a head-feeding combine.

The present invention is not limited to the above-described embodiment, and various improvements and changes can be made without departing from the spirit of the present invention.

6 Power unit 60 Engine room 61 Engine 62 Cooling fan 63 Radiator 631 Radiator frame 64 Oil cooler 641 Oil cooler frame 641a Vertical frame 641b Vertical frame 641c Horizontal frame 641d Rotating shaft 65 Intercooler 66 Oil cooler for transmission 100 combine S1 gap S2 gap S3 gap S4 gap

Claims (5)

With the engine
A radiator that cools the cooling water of the engine,
A cooling fan that cools the radiator,
It is equipped with an oil cooler that is arranged side by side with the radiator.
The oil cooler includes a first oil cooler and a second oil cooler.
The support frame that supports the oil cooler includes a vertical frame that supports the first oil cooler from both sides, and a horizontal frame that connects the vertical frames to support the second oil cooler.
The second oil cooler is a combine that is arranged with a gap between the first oil cooler and the vertical frame. The oil cooler is arranged on the opposite side of the cooling fan with the radiator in between.
The combine according to claim 1, wherein the oil cooler is configured to be openable upward or downward with respect to a radiator frame supporting the radiator so as to rotate with the upper end side or the lower end side as a rotation fulcrum. An intercooler is arranged on the opposite side of the cooling fan with the radiator in between.
The combine according to claim 1 or 2, wherein the oil cooler is configured to be openable downward with respect to the radiator frame, and the intercooler is configured to be openable upward with respect to the radiator frame. The combine according to claim 3, wherein the intercooler and the support frame are arranged with a gap. The combine according to any one of claims 1 to 4, wherein one of the first oil cooler and the second oil cooler is an oil cooler for a transmission and the other is an oil cooler for a working machine.

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