CN210076045U - Harvester - Google Patents

Abstract

It is desirable to facilitate the removal of dust adhering to the air-cooled cooling device. The utility model discloses a harvester has: an engine room (20) that houses an engine (17), a radiator (18), and a cooling fan (19); a dust-proof box (22) which has a dust-proof section (23) and is provided on the outside of the body with respect to the radiator (18) in a state in which the engine room (20) is covered from the outside of the body; and an air-cooled cooling device (27) supported by the dust box (22) in a state of being positioned between the dust-proof part (23) and the radiator (18), wherein the dust box (22) can swing around a horizontal axis (X) between a closed posture and an open posture by taking the lower end part of the dust box (22) as a center, a ventilation opening (30) is arranged at the part of the dust box (22) positioned at the side of the radiator (18), and the cooling device (27) can be detached from the ventilation opening (30).

Description

Harvester

Technical Field

The utility model relates to a harvester with an engine.

Background

In such a harvester, an air-cooled cooling device that cools operating oil for operating various hydraulic devices may be cooled by cooling air supplied to an engine cooling radiator. Conventionally, a dust box having a dust-proof portion is provided on the outer side of the body with respect to the radiator, and the cooling device is provided in a state of being fixed to the radiator side.

According to the above-described conventional configuration, although dust adhering to the dust-proof portion can be removed, it is difficult to perform the operation of removing dust adhering to the cooling device.

SUMMERY OF THE UTILITY MODEL

(problem to be solved by the utility model)

Here, it is desirable that the dust adhering to the air-cooled cooling device can be easily removed.

(means for solving the problems)

The utility model discloses a harvester's characterized in that has: an engine; a radiator for cooling the engine; the cooling fan is arranged at the adjacent position of the inner side of the machine body of the radiator, and is used for sucking external air from the outside of the machine body to the radiator and providing cooling air for the radiator; an engine room that houses the engine, the radiator, and the cooling fan; a dust-proof case that has a dust-proof portion and is disposed outside the body with respect to the radiator in a state in which the engine room is covered from outside the body, the dust-proof portion allowing air to flow therethrough and preventing dust from passing therethrough; and an air-cooled cooling device supported by the dust box in a state of being positioned between the dust-proof portion and the radiator, wherein the dust box is swingable around a horizontal axis between a closed posture in which the dust box covers an outside of the engine room and an open posture in which the dust box opens the outside of the engine room, with a lower end portion of the dust box as a center, a ventilation opening is provided in a portion of the dust box on a side of the radiator, and the cooling device is detachable from the ventilation opening.

According to the utility model discloses, when the dustproof case is and closes the posture, can cool off cooling device through the cooling air. When the dust box is switched to the open position, the cooling device is removed through the ventilation opening, whereby dust adhering to the cooling device can be easily removed.

Therefore, the cooling device can be cooled by the cooling air supplied to the radiator, and dust adhering to the cooling device can be easily removed.

In the present invention, preferably, a hose for supplying and discharging a refrigerant to and from the cooling device is inserted from below into a lower portion of the cooling device, a hose fixing portion for holding a position of the hose is provided at a bottom of the dust box, and the hose fixing portion can be detached from a side of the radiator in a thickness direction of the dust box.

According to this configuration, when the dust box is in the open position, the hose fixing portion is removed from the radiator side, i.e., the side open upward, and the hose is set in a free state, so that the hose can be inserted into the lower portion of the cooling device from below or pulled out.

The present invention provides a dust box, wherein the dust box has a bottom portion, and a hose fixing portion, wherein the hose fixing portion is formed with a through hole for inserting the hose, the lower portion of the dust box is formed with a notch for allowing the hose to be inserted into the through hole, the hose fixing portion is installed in the bottom portion of the dust box in a detachable manner, and the hose fixing portion is filled in the notch and a gap between the hoses.

According to this configuration, the hose can be smoothly inserted into the dust box, and when the hose fixing portion is attached to the bottom of the dust box, the posture of the hose can be favorably maintained by the hose fixing portion in a state where the gap between the notch and the hose is filled.

In the present invention, it is preferable that a support frame for supporting the cooling device is detachably provided in a frame member located around the ventilation opening of the dust box.

According to this configuration, the cooling device can be arranged at a position corresponding to the ventilation opening by the support frame, and the cooling device can be removed integrally with the support frame.

In the present invention, it is preferable that the support frame has 2 lateral frame bodies extending in the lateral direction with an interval left therebetween in the vertical direction, and lateral side portions of the lateral sides of the frame member are detachably supported by lateral side portions of the lateral sides of the lateral frame bodies.

According to this configuration, the cooling device can be stably supported at a wide vertical interval by the 2 lateral frame bodies spaced apart in the vertical direction.

The present invention provides a dust box, wherein, as a preference, an air-cooled second cooling device and an air-cooled third cooling device are provided in addition to the cooling device, the cooling device is provided at an upper side at an intermediate position in the up-down direction between the lateral frame members, the second cooling device supports the lateral frame members at the upper side in a state between the lateral frame members and the upper side of the frame member, the third cooling device supports the lateral frame members at the lower side in a state between the lateral frame members and the lower side of the frame member, and the cooling device supports the dust box in a manner capable of being integrally detached together with the support frame.

According to this configuration, the cooling device, the second cooling device, and the third cooling device can be cooled by the cooling air supplied to the radiator. Further, since the cooling device, the second cooling device, and the third cooling device can be attached and detached integrally with the support frame, the hose can be easily inserted and removed when performing maintenance work such as repair or replacement of parts.

In the present invention, it is preferable that a holding portion that holds the posture of the cooling device detached from the dust box in the open posture is provided in the radiator or a member that supports the radiator.

According to this configuration, the cooling device can be held in the same posture as that in the dust box. As a result, the hose can be inserted and removed in the vertical direction. Even if the refrigerant drops as it is inserted or removed, the refrigerant can be received by the container, and the work can be performed without difficulty.

Drawings

Fig. 1 is an overall side view of a combine harvester.

Fig. 2 is a side view of the power section.

Fig. 3 is a longitudinal sectional front view of the power unit.

Fig. 4 is an exploded perspective view of the dust box.

Fig. 5 is a longitudinal sectional front view of the dust box in an open state.

Fig. 6 is a longitudinal front view of the dust box in maintenance work.

Description of the reference numerals

17: engine

18: heat radiator

19: cooling fan

20: engine room

22: dust-proof box

27: cold oil machine for working device (cooling device)

28: fuel cooler (second cooling device)

29: cold oil machine for speed variator (third cooling device)

30: ventilation opening

31: upper transverse frame

33: frame component

33B, 33C: lateral part

34: transverse frame body of underside

35: hose fixing part

39: gap

41: holding part

H: a hose.

Detailed Description

Next, an embodiment of the harvester of the present invention will be described with reference to a general-type combine as an example, with reference to the accompanying drawings. In this embodiment, a direction indicated by a symbol "F" in fig. 1 is a front side of the machine body, a direction indicated by a symbol "B" in fig. 1 is a rear side of the machine body, a direction indicated by a symbol "U" in fig. 1 is an upper side, and a direction indicated by a symbol "D" in fig. 1 is a lower side.

(Integrated Structure of combine harvester)

As shown in fig. 1, the combine harvester has a travel machine body that can travel by a crawler travel device 1. A combine harvester comprises: a harvesting and conveying part 2 for harvesting and conveying the vertical grain stalks backwards; a threshing part 3 for threshing the harvested rice straw; a grain storage unit 4 for storing grains after threshing; a driving unit 6 for an operator to perform driving operations; a power unit 5 located below the driver unit 6; and a grain discharging device 7 for discharging grains; and the like.

The harvesting and conveying part 2 harvests the standing grain stalks and conveys the grain stalks backward. The harvesting and conveying unit 2 can be lifted and lowered as a whole by operation of a hydraulic cylinder not shown.

The driver unit 6 includes a driver seat 14 on which an operator can sit, various kinds of operation members and the like for performing driving operations by the operator.

As shown in fig. 3, the power unit 5 includes an engine room 20 that houses the engine 17, the radiator 18, and the cooling fan 19. The upper side and both front and rear sides of the engine room 20 are covered with an engine cover 21, and the outside of the engine body is covered with a dust box 22 provided outside the engine body with respect to the radiator 18. A dust-proof net 23 as a dust-proof portion is provided on the lateral outer surface of the dust-proof box 22, and the dust-proof net 23 allows air to flow therethrough and prevents dust from passing therethrough.

As shown in fig. 3, the driver seat 14 is supported on an upper portion of the engine hood 21. The engine cover 21 is coupled to the dust box 22. The engine cover 21 and the dust box 22 are integrally supported on the body frame 24 so as to swing around the lower end portion of the dust box 22 toward the axis X in the front-rear direction, which is a horizontal axis.

The dust box 22 can swing between a closed position (see fig. 2 and 3) for covering the outside of the engine room 20 and an open position (see fig. 4 and 5) for opening the outside of the engine room 20 by swinging around the front-rear direction axis X.

The radiator 18 is supported by a radiator frame 25 to a body frame 24. An air guide cover 26 is provided between the radiator 18 and the cooling fan 19, and the air guide cover 26 guides the wind generated by the cooling fan 19 to efficiently pass through the radiator 18. The wind scooper 26 is supported by the radiator frame 25.

(Structure for Cooling working oil)

As shown in fig. 1, 2, and 3, the working device oil cooler 27 as an air-cooled cooling device, the fuel cooler 28 as an air-cooled second cooling device, and the transmission oil cooler 29 as an air-cooled third cooling device are provided in a vertically aligned state in a space in the dust box 22 and in a passage path through which air sucked by the cooling fan 19 through the dust box 22 passes. The working-equipment oil cooler 27 cools working-equipment oil, which is an example of working oil, the fuel cooler 28 cools fuel supplied to the engine 17, and the transmission oil cooler 29 cools transmission oil.

The fuel cooler 28 is located above the working device cold oil engine 27, and the transmission cold oil engine 29 is located below the working device cold oil engine 27. The fuel cooler 28, the working device oil cooler 27, and the transmission oil cooler 29 are not overlapped when viewed from the side, but are disposed in a vertically aligned state.

The working device oil is hydraulic oil for supplying to the plurality of hydraulic cylinders for lifting. The running transmission oil is a working oil supplied to a hydrostatic continuously variable transmission (not shown) capable of continuously varying a running speed.

A rectangular ventilation opening 30 having substantially the same shape as the external shape of the air suction operation portion of the radiator 18 is formed in the side portion of the dust box 22 on the radiator 18 side. When the dust box 22 is in the closed position (the state shown in fig. 2 and 3), the working-equipment oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29 are located at positions corresponding to the ventilation openings 30, respectively. Therefore, the cooling air acts on the working device oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29, respectively, to perform a cooling function.

(supporting structure of oil cooler, etc.)

As shown in fig. 2 and 3, an upper lateral frame body 31 as a first lateral frame extending in the lateral direction toward the front-rear direction of the machine body is provided at an intermediate position in the vertical direction between the working device oil cooler 27 and the fuel cooler 28. The upper portion of the working equipment oil cooler 27 and the lower portion of the fuel cooler 28 are bolted to two locations, one on each side, and are supported by the upper lateral frame body 31.

A coupling member 32 is provided at an intermediate portion in the front-rear direction of the upper portion of the fuel cooler 28. The coupling member 32 is bolted to an upper edge portion 33A of a frame member 33 provided around the ventilation opening 30 of the dust box 22.

The working device oil cooler 27 and the transmission oil cooler 29 each have a lower lateral frame 34 as a second lateral frame extending in the lateral direction toward the front-rear direction of the machine body at an intermediate position in the vertical direction. The lower portion of the working device oil cooler 27 and the upper portion of the transmission oil cooler 29 are bolted to the front and rear two locations, respectively, and are supported by the lower lateral frame 34.

That is, the upper lateral frame 31 and the lower lateral frame 34 constitute a support frame for supporting the working unit oil cooler 27.

The lower portion of the transmission-use oil cooler 29 is supported by the upper portion of the frame member 33 by bolt fastening.

The front end portions of the upper lateral frame body 31 and the lower lateral frame body 34 are supported by the front-side longitudinal edge portion 33B of the frame member 33 by being bolted, and the rear end portions are supported by the rear-side longitudinal edge portion 33C of the frame member 33 by being bolted. Further, by releasing the bolt connection, the connection between the upper lateral frame body 31 and the lower lateral frame body 34 and the frame member 33 can be released. Therefore, both lateral side end portions of the upper lateral frame body 31 and the lower lateral frame body 34 are detachably supported by the front longitudinal edge portion 33B and the rear longitudinal edge portion 33C, which are lateral side portions on both lateral sides of the frame member 33.

The releasing operation of the upper lateral frame 31 and the lower lateral frame 34 can be performed from the outside of the dust box 22 through the ventilation opening 30. Specifically, as shown in fig. 4 and 5, the ventilation opening 30 is opened upward in a state where the dust box 22 is switched to the open position. In this state, the dust box 22 can be attached to and detached from the outside through the ventilation opening 30 from above.

The bolt fastening portion of the rear longitudinal edge portion 33C of the frame member 33 of the dust box 22 projects toward the inner circumferential side of the ventilation opening 30. Therefore, when the bolt connection is released and the rear end portions of the upper lateral frame body 31 and the lower lateral frame body 34 are moved upward or downward, the rear end portions can be removed outward through the ventilation opening 30. Further, the mounting can be performed from the outside.

The working device oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29 each have a hose H having flexibility for supplying and discharging working oil and fuel as a refrigerant. Each hose H passes under the radiator 18 and extends from the internal space of the dust box 22 to the inside of the engine room 20.

The hose H for supplying and discharging the refrigerant to and from the working device oil cooler 27 and the transmission oil cooler 29 can be inserted from below into the lower portion of each of the oil coolers 27 and 29.

As shown in fig. 2, 3 and 4, the dust box 22 has a hose fixing portion 35 at the bottom thereof for holding the hose H. The hose fixing portion 35 is an L-shaped plate when viewed from the front-rear direction, a plurality of insertion holes 36 through which the hose H is inserted are formed in a horizontal surface when the dust box 22 is in the closed posture, and a grommet 37 in a ring shape for protecting the hose H is attached to the insertion holes 36.

The hose fixing portion 35 is attachable to and detachable from the radiator 18 side in the thickness direction (the body left-right direction) of the dust box 22. Specifically, the dust box 22 can be attached and detached from above through the ventilation opening 30 in a state in which it is switched to the closed posture.

As shown in fig. 4, a lower frame member 38 serving also as a lower side edge portion of the frame member 33 is provided at a lower portion of the dust box 22. The lower frame member 38 is formed with a notch 39 into which the hose H can be fitted from the radiator 18 side. The hose fixing portion 35 is placed on the upper side of the lower frame member 38 and fixed by bolt fastening. The gap between the notch 39 and the hose H is closed by fixing the hose by the hose fixing portion 35. The hose fixing portion 35 can be removed by releasing the bolt connection.

As shown in fig. 2, the fuel supply and discharge pipe 40 extending from the fuel cooler 28 is disposed along the upper lateral frame member 31 and the rear longitudinal edge portion 33C of the frame member 33. The fuel supply/discharge pipe 40 passes under the radiator 18, as with the hose H, and extends from the internal space of the dust box 22 to the inside of the engine room 20. Therefore, the rear-side longitudinal edge portion 33C corresponds to a longitudinal frame that supports the fuel supply and discharge pipe 40 in the vertical direction.

The plurality of hoses H can be inserted and removed in the vertical direction while the working device oil cooler 27 and the transmission oil cooler 29 are held in the vertical positions.

Specifically, as shown in fig. 5, the upper lateral frame body 31 and the lower lateral frame body 34 can be detached from above through the ventilation opening 30 in a state where the dust box 22 is switched to the open posture. Further, the bolt connection between the upper portion of the fuel cooler 28 and the lower portion of the transmission-use oil cooler 29 and the frame member 33 can be released.

By releasing the connection with the frame member 33 as described above, the working-equipment oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29 can be removed from the outside integrally with the upper lateral frame 31 and the lower lateral frame 34 through the ventilation opening 30. At this time, the hose fixing portion 35 can also be removed together.

The radiator 18 has a holding portion 41 at an upper central position thereof, and the holding portion 41 is used to hold the working device oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29, which are detached from the dust box 22, in the vertical posture. As shown in fig. 6, the holding portion 41 can be coupled to and support the coupling member 32 provided at the upper portion of the fuel cooler 28 by, for example, bolt coupling.

As shown in fig. 6, the work equipment oil cooler 27, the fuel cooler 28, and the transmission oil cooler 29 can be held in the vertical postures by supporting the coupling member 32 on the holding portion 41. In the state of being held in the vertical posture as described above, the hose H can be inserted and removed in the vertical direction. The hose H can be pulled out for maintenance work. After the completion of the work, the components detached from the dust box 22 as described above can be assembled into the dust box 22 through the ventilation opening 30.

(other embodiments)

Next, other embodiments will be described in order.

(1) The hose H can be inserted and removed from the upper side or the lateral side, and the hose fixing portion 35 may be set in a fixed state.

(2) The fuel cooler 28 (second cooling device) and the transmission-use oil cooler 29 (third cooling device) may or may not have either one or both of them in a fixed state.

(3) The radiator frame 25 supporting the radiator 18 may have a holding portion 41.

(4) The support frame for supporting the cooling device may include 1 or 3 or more horizontal frame members. The cooling device is not limited to the working device oil cooler, as long as it is air-cooled.

(availability in industry)

The utility model discloses can be applicable to ordinary type combine, half-feeding type combine to and the harvester that reaps other kinds of crops such as corn harvester.

Claims (8)

1. A harvester is characterized in that a harvester is provided,

comprising: an engine;

a radiator for cooling the engine;

the cooling fan is arranged at the adjacent position of the inner side of the machine body of the radiator, and is used for sucking external air from the outside of the machine body to the radiator and providing cooling air for the radiator;

an engine room that houses the engine, the radiator, and the cooling fan;

a dust-proof case that has a dust-proof portion and is disposed outside the body with respect to the radiator in a state in which the engine room is covered from outside the body, the dust-proof portion allowing air to flow therethrough and preventing dust from passing therethrough; and

an air-cooled cooling device supported by the dust box in a state of being positioned between the dust-proof portion and the radiator,

the dust box is capable of swinging around a horizontal axis between a closed posture of covering the outer side of the engine room and an open posture of opening the outer side of the engine room with the lower end part of the dust box as a center,

a ventilation opening is provided in a portion of the dust box on the radiator side, and the cooling device is detachable from the ventilation opening.

2. A harvester according to claim 1,

a hose for supplying and discharging a refrigerant to and from the cooling device can be inserted into a lower portion of the cooling device from below,

a hose fixing part for holding the position of the hose is arranged at the bottom of the dust box,

the hose fixing portion is attachable to and detachable from the radiator side in the thickness direction of the dust box.

3. A harvester according to claim 2,

an insertion hole through which the hose is inserted is formed in the hose fixing portion,

a notch for inserting the hose from the radiator side is formed at the lower part of the dust-proof box,

the hose fixing part is detachably mounted on the bottom of the dust-proof box,

and filling a gap between the notch and the hose through the hose fixing part arranged at the bottom of the dustproof box.

4. A harvester according to any one of claims 1 to 3,

a support frame for supporting the cooling device is detachably provided on a frame member located around the ventilation opening of the dust box.

5. A harvester according to claim 4,

the support frame has 2 lateral frame bodies extending in the lateral direction with an interval in the up-down direction,

the lateral frame body has lateral side end portions detachably supported by lateral side portions on both lateral sides of the frame member.

6. A harvester according to claim 5,

in addition to the cooling device, a second air-cooled cooling device and a third air-cooled cooling device are provided,

the cooling device is provided at an intermediate position in the up-down direction between the lateral frame body on the upper side and the lateral frame body on the lower side,

the second cooling device supports the upper lateral frame body in a state of being positioned between the upper lateral frame body and the upper side portion of the frame member,

the third cooling device is supported on the lower lateral frame body in a state of being positioned between the lower lateral frame body and the lower side portion of the frame member,

the cooling device, the second cooling device, and the third cooling device are supported by the dust box so as to be integrally detachable together with the support frame.

7. A harvester according to any of claims 1, 2, 3, 5 and 6,

the radiator or a member supporting the radiator is provided with a holding portion that holds the posture of the cooling device removed from the dust box in the open posture.

8. A harvester according to claim 4,

the radiator or a member supporting the radiator is provided with a holding portion that holds the posture of the cooling device removed from the dust box in the open posture.

Images