JP7261693B2 - combine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a self-detachable or general-purpose combine harvester, and more particularly to a frame structure in the driver's seat.

Generally, in a combine harvester, the engine and related parts are placed under the driver's seat, and the air sucked into the cooling fan through the dustproof net on the outer side of the driver's seat cools the radiator, oil cooler, and further cools the engine itself. and discharged from the engine room.

Conventionally, there has been proposed a combine harvester in which a dustproof cover for a radiator is supported on the lateral outside of the engine room so that it can be opened and closed by swinging (Patent Document 1). The combine can open the lateral outside of the radiator by simply swinging the dustproof cover, so that the radiator can be easily cleaned. Further, the lateral outer structure supporting the dustproof cover can be removed, and the lateral outer structure can be removed together with the dustproof cover to open the inside of the engine room.

Japanese Patent No. 5984752

In the combine, a radiator and an oil cooler are attached to a radiator support that is fixed to the body frame, and the lateral outer structure constituting the engine bonnet is fixed to the body side frame laterally outside the radiator support. are arranged as follows.

Therefore, the cooling fan cannot be removed and the fan belt cannot be replaced unless the radiator hose is removed and the radiator is removed with the lateral outer structure, which is the door frame, removed, making maintenance difficult. rice field.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a combine harvester which solves the above-described problems by swinging a radiator on a pivot shaft to create a space behind the radiator for a hand to enter.

The present invention is an engine room in which a driver's seat (6) is arranged on one side in front of a body frame (3) supported by a traveling device (2), and an engine (20) and a radiator (16) are accommodated in the driver's seat. In a combine (1) comprising (11),
The radiator (16) is swingably supported by a pivot shaft (B1) on body-side frames (25, 26a) arranged laterally outside of the engine room (11). ) two radiator hoses (16a) connected to ) are arranged on the side close to the pivot shaft (B1) ,
The radiator (16) is attached to a door frame (13) that supports the cover body (15) so that it can be opened and closed, the door frame (13) and the radiator (16) are used as a sub-assembly, and the door is the sub-assembly. The frame (13) and the radiator (16) are integrally swingable on the body-side frames (25, 26a),
The combine is characterized by

The pivot shaft (B1) is a part of bolts (B1) among a large number of bolts (B) that attach the door frame (13) to the body-side frames (25, 26a).

The reference numerals in parentheses are for comparison with the drawings, but they do not affect the description of the claims.

According to the first aspect of the present invention, the radiator can be rocked with respect to the body-side frame to perform maintenance such as replacement of a part of the radiator inside the body, such as a fan belt. At this time, the two radiator hoses restrict the swinging of the radiator, but since the radiator hoses are arranged on the side near the pivot shaft, the restriction on the swinging can be relaxed, and replacement of the fan belt, etc., is possible. You can secure a space to put your hand in.

Moreover , since the radiator is attached to the door frame and the sub-assembled radiator and door frame are swung integrally, the structure is simplified and the radiator can be swung a predetermined amount easily and reliably.

According to the second aspect of the present invention, since some bolts among the bolts for fixing the door frame to the body side frame are used as pivot shafts, the radiator can be swung and attached/detached, and the number of parts can be reduced. can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the whole combine which concerns on this invention. The perspective view which shows the door frame and cover body part. An exploded perspective view thereof. The perspective view which shows the engine part which removed the driver's seat frame. The front view which shows an engine room. The side view which shows an engine room. FIG. 2 is a rear view showing the engine room; The top view which shows an engine room. (a) is a perspective view showing a frame, and (b) is a sectional view of the frame. The exploded perspective view which shows a door frame. The front view which shows a radiator attachment part. (a) is a perspective view showing the lower portion of the door frame, (b) is an exploded perspective view thereof, (c) is a partially enlarged perspective view thereof, and (d) is a sectional view thereof. (a) is a plan view showing a radiator, and (b) is a plan view showing its rotated state.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The combine 1, as shown in FIG. 1, has a body frame 3 supported by a crawler traveling device 2. On the body frame 3, a threshing device 5, a driver's seat 6 and a grain tank 7 are arranged. The reaping part 9 is supported so as to be able to move up and down. The driver's seat 6 is arranged on the front left side of the body frame 3 and has a driver's seat frame unit 10, as shown in FIGS. The frame unit 10 is surrounded by plates, has an engine room 11 inside, and has a driver's seat 12 (see FIG. 1) attached to the top.

A door frame 13 is fixed to the right side of the frame unit 10, which is the lateral outer side of the machine body, and a cover body (door) 15 is supported on the door frame 13 by a hinge so as to be openable. A radiator 16, an oil cooler 17, and the like are attached to the door frame 13, and a dustproof net 19 is spread over the cover body 15. As shown in FIG. In the engine room 11, an engine 20 is mounted on the body frame 3 via anti-vibration rubber, and a cooling fan 22 is arranged laterally outside of the engine 20.

A step frame 23 that serves as a foot step for the driver's seat 6 is integrally fixed to the front right side of the body frame 3 so as to protrude upward. is positioned one step higher than the A front frame 25 of the frame unit 10 is erected on the step frame 23 . As shown in FIGS. 3 to 8, a rear frame 26 is arranged behind the engine room 11, and the rear frame 26 is fixed at its lower end to the body frame 3 with a predetermined gap in the width direction of the body. It has two vertical frames 26a and 26b erected in parallel with each other, and horizontal frames 26c and 26d are connected to the upper end and intermediate portions of these vertical frames so as to traverse them. Furthermore, a fall prevention frame 30 is connected between the intermediate horizontal frame 26d and the step frame 23. As shown in FIG. Accordingly, the tipping prevention frame 30 has its front end connected to the rear frame 26 via the lateral frame, and its front end connected to the body frame 3 via the step frame 23 .

The fall prevention frame 30 has a horizontal portion 30a extending substantially horizontally from the intermediate horizontal frame 26d and an inclined portion 30b extending obliquely between the tip of the horizontal portion 30a and the step frame 23. ), it is arranged in the longitudinal direction of the fuselage so as to pass between the engine 20 and the radiator 16 .

A pulley 31 as an output member is arranged inside the crankshaft extending in the width direction of the engine 20, and a pulley 32 for driving accessories such as a cooling fan 22 is arranged outside the machine. A belt is wound between the pulley 32 and the cooling fan 22, and the direction of rotation of the cooling fan 22 is switched between normal and reverse by changing the transmission path of the belt. An air cleaner 37 and a fan forward/reverse switching motor (switching device) 39 for switching the forward/reverse direction of the cooling fan 22 are attached to the collapse prevention frame 30 . In FIG. 8, 35 is a head cover of the engine 20, and 36 is an injector. In FIG. 5, 22a is a fan shroud.

As shown in FIG. 9, the horizontal portion 30a of the fall prevention frame 30 is composed of a horizontally arranged plate member 40 and a U-shaped member 41. The plate member 40 and the U-shaped member 41 are They are integrally fixed by ribs 42 and the like. The inclined portion 30b of the fall prevention frame 30 is made of a square pipe, and the horizontal portion 30a and the inclined portion 30b are integrally connected. The air cleaner 37 is integrally fixed with a bolt 43 to a U-shaped member 41 of the horizontal portion 30a. The fan forward/reverse switching motor 39 is attached to a mounting plate 45, which is integrally attached to the plate member 40 of the horizontal portion 30a by means of bolts 43. As shown in FIG. Reference numeral 46 denotes a fixing bracket for connecting a connecting bracket 47 (see FIG. 3) fixed to the door frame 13. As shown in FIG.

As a result, the fall-preventing frame 30 is between the horizontal frame 26d and the step frame 23, which is one step higher, and is sufficiently short compared to the one connected to the body frame 3, so that strength can be ensured. In addition, the fall prevention frame 30 is arranged so as to pass between the engine 20 and the radiator 16, so that it does not interfere with the installation and maintenance of the output member 31 where the transmission members are densely packed, and the maintenance of the engine 20 is facilitated. It doesn't get in the way of In addition, the air cleaner 37 and the fan forward/reverse switching motor 39 can be stably mounted at appropriate positions.

The door frame 13, as shown in FIGS. 3, 10 and 11, comprises a lower member 13a and an upper member 13b. The lower member 13a is formed by punching a plate member and has an opening 50. The upper end portion of the lower member 13a is formed of a partition portion 52, and the upper member 13b is configured to surround the upper portion of the partition portion 52 to form an opening 53. In addition, the outer edge portion is composed of a frame with a bent periphery, similar to the lower portion described above. That is, the door frame 13 has substantially the same shape as the cover body (door) 15, and when the cover body 15 is closed, the frame body 51 serves as an abutting portion that abuts against the frame portion 15a of the cover body. The door frame 13 is detachably attached to body-side frames such as the body outer vertical frame 26 a of the front frame 25 and the rear frame 26 .

Two hinges 55 are provided on the rear side of the door frame 13, and hinge pins 54 are inserted into the hinges 55 to support the cover body 15 so as to be swingable. It can be removed from the door frame 13 by lifting it. When the cover 15 is opened or removed, the upper opening 53 of the door frame 13 becomes an opening for maintenance of the air cleaner 37. By dividing and removing the upper member 13b, water supply to the radiator 16 becomes easy. Together with this, the assemblability is improved. Further, the upper part of the cover body 15 is composed of a covering plate 56 which closes the opening 53 of the door frame 13 .

Cooling devices such as a radiator 16 and an oil cooler 17 are attached to the lower opening 50 of the door frame 13 . That is, the lower opening 50 is connected by a connecting plate 59 extending laterally in the central portion, and a connecting plate 60 is fixed to the lower frame portion. is attached. A fuel cooler 61 is attached to the lower connecting plate 60 between the oil coolers 17 . A radiator support plate 63 is integrally attached to the lower member of the door frame. A fan shroud 22a is integrally attached to the rear surface of the radiator 16. As shown in FIG. In addition, 16a, 16a in the figure are radiator hoses.

Therefore, the lower member 13a of the door frame 13 is made of a radiator mounting member, and serves as a sub-assembly that also serves as the radiator mounting member. And it can be attached to and detached from the machine body side frame composed of the outer vertical frame 26a of the rear frame and the like. The door frame 13 extends over the engine room 11 and the air cleaner 37 above it. When the door frame 13 is removed, the engine room 11 and the air cleaner 37 are open.

A lower cover 65 is attached to the lower portion of the door frame 13 as shown in FIG. That is, the lower portion of the door frame 13 does not have a bent portion, and the bent portion is constituted by the lower cover 65 . The lower cover 65 has a folded portion 65a and a flat portion 65b. The flat portion 65b is fixed to the lower surface of the door frame 13 with bolts and nuts so that the bent portion 65a faces the front side. With the lower cover 65 removed from the door frame 13, dust, water, etc. accumulated on the lower surface of the door frame 13 can be cleaned.

The cover body (door) 15 is fixed to the door frame 13 by two hinge pins 54, 54 and two knob nuts 67, 67, as shown in FIGS. As shown in FIGS. 3 and 4, the door frame 13 is fixed to the body-side frame by a large number of fasteners B such as bolts and nuts, and connecting brackets 47. As shown in FIG. Two bolts B1 and B2, which are fixing parts for fixing the lower part of the fixture B for fixing the door frame 13, are arranged vertically (in the vertical direction). Remove the other bolts B2, B . . . As a result, as shown in FIG. 13(a), from the state where the door frame 13 is fixed to the body frame, as shown in FIG. The door frame 13 is put into a swingable state. A radiator 16 and the like are integrally attached to the door frame 13, and the radiator hoses 16a, 16a are rigid and restrict the amount of swinging. It is on the side close to the front lower bolt B1, which relaxes the regulation of the swinging, and the predetermined amount of swinging of the door frame 13 can be gained.

When the door frame 13 is swung, there is a space C between the fan shroud 22a integrated with the door frame and the cooling fan 22 integrated with the engine 20, through which a hand can be inserted. It becomes possible to remove the fixing bolt of the cooling fan 22 by inserting it.

1 combine harvester 2 travel device 3 body frame 6 driver's seat 11 engine room 13 door frame 15 cover body (door)
16 Radiator 16a Radiator hose 20 Engine 25, 26a Machine body side frame (vertical frame of front frame and rear frame)
B Bolt B1 Pivot shaft (bolt)

Claims (2)

A combine harvester having a driver's seat on one side in front of a body frame supported by a traveling device, and an engine room containing an engine and a radiator in the driver's seat,
The radiator is swingably supported by a pivot shaft on a body-side frame arranged laterally outside of the engine room, and two radiator hoses for connecting the radiator to the engine are arranged near the pivot shaft. to the
The radiator is attached to a door frame that supports the cover body so as to be openable and closable, and the door frame and the radiator are used as sub-assemblies, and the door frame and the radiator as the sub-assemblies are integrally swingable on the body-side frame. and
A combine characterized by: The pivot shaft is a part of bolts among a large number of bolts that attach the door frame to the body-side frame,
A combine according to claim 1 .

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