JP6238813B2 - Combine - Google Patents

Description

  The present invention relates to a combine including an operation cabin that covers an operation unit, an engine room provided below a rear side of the operation unit, and an air conditioner for the operation unit.

  As the above-mentioned combine, there is a conventional one described in Patent Document 1, for example. In the combine described in Patent Document 1, an indoor unit of an air conditioner is provided in the front portion of the cabin ceiling. A condenser room is provided above the engine room, and a receiver is provided between the condenser room and the glen tank.

JP 2013-13332 A

  In the conventional case, the length of the refrigerant circulation path connecting the receiver and the indoor unit becomes long, and the amount of refrigerant held in the air conditioner increases. In addition, much work is required for the work of assembling the air conditioner.

  An object of the present invention is to provide a combine that can be provided with an air conditioner in a state that requires a small amount of refrigerant and that can advantageously perform assembly work and maintenance.

The combine according to the present invention is:
A driving cabin covering the driving part;
An engine room provided below the rear side of the operating unit;
A dust-proof case that is provided on the outer side of the airframe of the engine room and acts on engine cooling air;
And the air conditioning unit for said driving unit, is provided,
The indoor unit of the air conditioner is out of the roof portion close to the rear end portion in the roof of the driver cabin, in the machine body lateral width direction, provided at a position of the dust-proof case side closer to the central portion of the driver cabin,
A condenser of the air conditioner is disposed inside the dustproof case;
A cabin support column that supports the rear portion of the operation cabin is erected on the rear side of the engine room at a position closer to the dust-proof case side with respect to the central portion in the lateral width direction of the vehicle body,
Receiver of the air conditioning system, Oite the rear side of the engine room, to be located on the dust-proof casing side with respect to the cabin support posts, and, located between the indoor unit and the condenser in the vertical direction The cabin support column supports the cabin .

According to the configuration of the present invention, the indoor unit and the receiver are positioned in a state where the distance in the front-rear direction of the body is narrow, so that the indoor unit and the receiver may be connected by a short refrigerant circulation path.
In many combine harvesters, the rear of the engine room can be opened by opening the grain tank. Therefore, the receiver is positioned so as to be easily seen and handled from the rear of the engine room.

Therefore, according to the present invention, the refrigerant that needs to be held in the air conditioner can be saved in a small amount because of the short refrigerant circuit, and the short refrigerant circuit can be obtained at a lower price than the long refrigerant circuit. As a whole, the air conditioner can be equipped at low cost.
Since the short refrigerant circuit is easier to dispose than the long refrigerant circuit, and the receiver is easily inspected and handled from the rear of the engine room, it is easy to perform assembly work and maintenance work as a whole.
Since the driving cabin column receives heavy loads from the driving cabin, it has excellent strength. Therefore, according to the present invention, the receiver is firmly supported so as not to swing easily, and the internal refrigerant is hardly shaken.

  In the present invention, it is preferable that the receiver is located below a rear wall window of the operation cabin.

  According to the present invention, since the receiver is located at a position closer to the lateral inner side of the driving cabin in plan view, the distance between the receiver and the indoor unit in the lateral direction of the fuselage is reduced, and the refrigerant circulation between the receiver and the indoor unit is further shortened. Can be connected by road.

In the present invention, a strut is provided at a position near the rear portion of the side wall on the dustproof case side of the left and right side walls of the operation cabin , and a refrigerant circulation path connecting the indoor unit and the receiver is provided on the strut. It is preferable to extend along .

In the present invention, it is preferable that the pre-logger capacitor is deployed to the body next to the outside of the engine housed in the engine room.

  According to the present invention, the heat exchange of the refrigerant in the condenser can be effectively performed using the cooling air supplied to the engine.

In the present invention, before Kibo dust case is openable and closable, it is preferable that the capacitor is supported in a state of being opened and closed with the dust-proof casing inside the dustproof case.

  By opening the dust-proof case and opening the inside of the dust-proof case, the capacitor can be attached to the dust-proof case and moved, and the capacitor can be opened inside the dust-proof case. Therefore, while the engine cooling air can be used for heat exchange of the refrigerant in the condenser, the operation such as the inspection of the condenser can be facilitated by simply opening the dust-proof case and opening the condenser.

  In the present invention, it is preferable that an oil cooler is provided on the outer side of the engine body.

  According to this configuration, the cooling of the hydraulic oil by the oil cooler can be effectively performed using the cooling air supplied to the engine.

In the present invention, the engine room includes a main engine room that houses the engine, and a cooling air introduction room that is positioned above the main engine room and is partitioned from the main engine room. Dust proof provided in a state of being located over the main engine room and the cooling air introduction room on the outside, forming a communication path between the main engine room and the cooling air introduction room, and removing dust from the cooling air With a case,
It is preferable that the communication path is provided with a wind guide that is attached across the inner portion of the dust-proof case body and the condenser, and that directs the cooling air from the cooling air introduction room toward the lateral outer side of the condenser body. It is.

  According to the present invention, the cooling air from the cooling air introduction room flows into the condenser under the guidance of the wind guide so that it does not flow into the main engine room by bypassing the condenser. Heat exchange of the refrigerant can be performed effectively.

  In the present invention, it is preferable that the pair of drain water channels of the indoor unit are distributed to both lateral sides of the operation cabin and extended downward.

  According to the present invention, in order to discharge the drain water of the indoor unit, the drain water can be quickly discharged by being divided into a pair of drain water channels. Since a pair of drain waterways is divided on both sides of the operating cabin, the drain waterways are more compact than those that employ a single thick drainage waterway or a pair of drainage waterways that are located at the same location. Can be deployed.

  In the present invention, an engine bonnet that forms the engine room is supported so as to be swingably switchable between an open posture separated from the driving cabin and protruding outward from the airframe and a closed posture positioned below the driving portion. It is preferable that

  According to the present invention, the engine room can be opened easily by opening only the engine hood, compared to the case where the driving cabin and the engine hood are opened together.

It is a side view which shows the whole combine. It is a top view which shows the whole combine. It is a side view which shows a driving | running cabin and a drive part. It is a rear view which shows an operation cabin and a drive part. It is a rear view which shows a drive part. It is a front view which shows the engine bonnet of an open attitude | position. It is a side view which shows the swing operation point of an engine bonnet.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire ordinary combine according to an embodiment of the present invention. FIG. 2 is a plan view showing the entire ordinary combine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, a combine according to an embodiment of the present invention is equipped with a pair of left and right crawler traveling devices 2 and 2 (hereinafter abbreviated as traveling device 2) at the lower part of a body frame 1. It is equipped with a traveling aircraft that can run. A driving unit 3 that is covered by the driving cabin 10 and includes a driving seat 8 and a driving unit 20 that is positioned below the rear side of the driving unit 3 are provided on the right side of the front part of the traveling machine body. A threshing device 4 is provided in the left side region of the rear portion of the machine body frame 1, and a cutting pretreatment device 5 is connected to a front portion of the threshing device 4 so as to be swingable up and down. A grain tank 6 is provided in the right area of the rear part of the machine body frame 1.

This combine is for harvesting rice and wheat.
That is, the pre-cutting processing device 5 can be moved up and down to a lowering working state in which the cutting portion 5a located at the front part is lowered near the farm scene and to a non-working state in which the cutting part 5a is raised from the farm scene. It is configured. By moving the pre-cutting processing device 5 to the lowering operation state and running the traveling machine body, the pre-cutting processing device 5 separates the front planted cereals into a cutting target and a non-cutting target, and planting the cutting target. The whole grain from the stock source to the tip of the harvested grain is fed to the threshing device 4 by the feeder 5b. The threshing device 4 threshes the harvested cereal with a barrel (not shown) that is driven to rotate, and conveys the grain to the grain tank 6 in a state of being sorted from dust such as straw scraps. The grain tank 6 stores the grain from the threshing device 4 and discharges the stored grain by the discharge auger 7. The grain tank 6 is supported so as to be able to switch to an open posture that protrudes to the laterally outer side of the machine body around the vertical swing axis P located on the rear end side, and the grain tank 6 is brought into an open position. By doing so, the rear of the prime mover 20 can be opened.

The driving cabin 10 will be described.
As shown in FIGS. 2, 3, and 4, the driving cabin 10 includes a front wall 11 having an upper portion constituted by a windshield 11 a, left and right side walls 12, a rear wall 13 provided with a rear wall window 13 a, and a roof. Part 14.

  An entrance 15 and a door 16 for opening and closing the entrance 15 are provided in front of the right side wall 12. The front end side of the door 16 is supported by the driving cabin 10 via a door hinge 16a, and the door 16 can be opened and closed by swinging around the opening / closing axis Y of the machine body with the door hinge 16a as a fulcrum. The rear wall window 13a is provided with a transparent glass plate that can be opened and closed. The longitudinal length of the roof portion 14 is set such that the rear end portion 14 a protrudes rearward from the left and right side walls 12 and the rear wall 13.

The driving unit 20 will be described.
As shown in FIGS. 3, 4, and 5, the driving unit 20 includes an engine room 22 provided below the rear side of the driving unit 3. An engine 23 is provided in a lower portion of the engine room 22. The engine 23 is supported by the machine body frame 1 in a horizontal posture in which the crankshaft is in the horizontal direction of the machine body, and is configured to output driving force to the traveling device 2, the threshing device 4, and the pre-cutting processing device 5. An engine air cleaner 24 is provided in an upper portion of the engine room 22.

  A main engine room 22 a that houses the engine 23 in the engine room 22 is formed by an engine bonnet 21 provided with a top plate 21 t that covers the upper side of the engine 23. The engine bonnet 21 includes a top plate 21t, a front vertical wall plate 21f positioned in front of the engine 23, and a rear vertical wall plate 21r positioned in the rear of the engine 23.

  The cooling air introduction room 22b that houses the air cleaner 24 in the engine room 22 includes a top plate 21t of the engine bonnet 21, the rear wall 9 of the operation unit 3, the upper end of the rear wall 9, and the rear wall 13 of the operation cabin 10. It is formed by a top plate 22t extending to the lower end. The cooling air introduction room 22 b is disposed behind the driver seat 8. The cooling air introduction room 22 b and the main engine room 22 a are partitioned by a top plate 21 t of the engine bonnet 21. The lower part 9 a of the rear wall 9 of the operation unit 3 is divided from the upper part 9 b and supported by the top plate 21 t so as to swing together with the engine bonnet 21.

  A dustproof case 25 is connected to the lateral side of the engine bonnet 21. The dust-proof case 25 is located on the laterally outer side of the engine room 22 and enables the engine cooling air to be sucked into the engine room 22.

  That is, the dust-proof case 25 has a vertical plate portion 25a formed in a shape that covers the main engine room 22a and the cooling air introduction room 22b in a side view of the fuselage, and extends from the vertical plate portion 25a toward the engine room 22. And a peripheral wall plate portion 25b extending along the peripheral portion of the vertical plate portion 25a. The dust-proof case 25 communicates the main engine room 22a and the cooling air introduction room 22b on the lateral outer side of the engine 23, and has a communication passage 26 that allows the engine cooling air to flow from the cooling air introduction room 22b to the main engine room 22a. Forming. The vertical plate portion 25a is provided with a vent portion 27a that allows outside air of the engine room 22 to be sucked into the inside. A ventilation port portion 27b that allows outside air to be sucked from the cooling air introduction room 22b is provided in the vertical plate portion 25c inside the machine body of the dustproof case 25. The vent holes 27a and 27b are provided with a dust removing function for removing dust mixed in the sucked outside air by filtration.

  An engine cooling rotary fan 28 and an engine cooling radiator 29 are provided on the outer side of the engine 23 and on the inner side of the dust-proof case 25 so as to cool the engine 23. It is.

  That is, the rotary fan 28 is driven by the engine 23 and blows air toward the inner side of the machine body. Due to the air blowing action of the rotary fan 28, the outside air of the engine bonnet 21 is sucked into the inside of the dustproof case 25 from the vent portion 27 a of the dustproof case 25 to generate cooling air, and this cooling air is supplied to the radiator 29. The outside air of the engine bonnet 21 is sucked into the upper end side of the dust-proof case 25 from the cooling air introduction room 22b through the vent portion 27b to generate cooling air, and this cooling air is supplied to the radiator 29 through the communication passage 26. The air is introduced to the lateral outer side of the machine body, is combined with the cooling air from the vent portion 27a, and is supplied to the radiator 29.

  The lower part of the engine bonnet 21 on the lateral side of the fuselage is rotatably supported by a support portion 1a provided on the fuselage frame 1 via an opening / closing axis X facing the front / rear of the fuselage. By swinging around, the engine cabin 22 is separated from the driving cabin 10 and exits to the outer side of the fuselage to open the engine room 22 (see FIG. 6). It can be switched to the closed position. The dustproof case 25 swings together with the engine bonnet 21.

  As shown in FIG. 7, the driver seat 8 is attached to the engine bonnet 21 by rotating the driver seat 8 with respect to a support member 8 c provided on the front end of the top plate 21 t of the engine bonnet 21. Are switched between a seating mounting posture in which the backrest portion 8a is located on the rear side of the seat portion 8b and an engine bonnet swinging mounting posture in which the backrest portion 8a is located on the front side of the seat portion 8b. By setting the driver seat 8 in the mounting posture for swinging the engine hood, the driver seat 8 is configured to pass through the entrance 15 when the engine hood 21 swings.

  That is, when performing maintenance work such as inspection and cleaning of the prime mover 20, the engine bonnet 21 and the dust-proof case are operated by swinging the engine bonnet 21 while the driver seat 8 is switched to the mounting posture for swinging the engine bonnet. 25 can be switched to the open position with the driver's seat 8 attached, and the engine room 22 can be opened to facilitate handling of the engine 23, the radiator 29, and the like.

  As shown in FIGS. 3 and 5, an oil cooler 30 is provided between the radiator 29 and the vertical plate portion 25 a of the dust-proof case 25 on the lateral outer side of the engine 23. The oil cooler 30 is supplied with engine cooling air on the windward side of the radiator 29, and the hydraulic oil (not shown) for operating the cutting pretreatment device 5 to move up and down is exchanged with heat from the engine cooling air. It is configured to cool.

  The oil cooler 30 is supported by a support member (not shown) connected to the engine bonnet 21 or the dustproof case 25, and is supported by the engine bonnet 21 so as to swing together with the engine bonnet 21 and the dustproof case 25. . Therefore, the oil cooler 30 can be opened together with the dust-proof case 25 to the outer side of the machine body by switching the engine bonnet 21 to the open posture.

The air conditioner 40 will be described.
As shown in FIGS. 3 and 4, an indoor unit 41 provided in the roof portion of the operation cabin 10 is provided, and an air conditioner 40 that supplies air for operation to the operation unit 3 is provided by the indoor unit 41.

  The indoor unit 41 is provided near the rear end of the roof portion within the roof portion 14. Specifically, it is provided at a location closer to the rear end than the front ends of the outer and inner portions of the ceiling space formed by the outer and inner of the roof portion 14.

The indoor unit 41 includes a pair of drain water channels 42 and 42 extending from the drainage section, in addition to an evaporator and a blower fan. The pair of drain water channels 42, 42 are distributed to both lateral sides of the operation cabin 10 and extend below the operation cabin 10. Specifically, each of the pair of drain water channels 42 and 42 is configured by a drain hose having flexibility.
One drain water channel 42 passes through the interior of the rear cabin frame 18 that is located at the left rear corner of the operation cabin 10 and is vertically oriented from the upper end to the lower end of the rear cabin frame 18, and from the lower end of the rear cabin frame 18. The outside of the driving cabin 10 is arranged so as to extend below the body frame 1 to the exit. The other drain water channel 42 passes through the interior of the rear cabin frame 18 located at the right rear corner of the operating cabin 10 from the upper end to the lower end of the rear cabin frame 18 and from the lower end of the rear cabin frame 18. The outside of the driving cabin 10 is arranged so as to extend below the body frame 1 to the exit.

  The air conditioner 40 includes an indoor unit 41, a compressor 43 that compresses the refrigerant returned from the indoor unit 41, a condenser 44 that cools the refrigerant from the compressor 43, and the condenser 44 and the indoor unit 41. And a receiver 45 for storing a liquid refrigerant. The compressor 43, the condenser 44 and the receiver 45 are arranged as follows.

  The compressor 43 is supported by the body frame 1 via a stay on the rear side of the main engine room 22a. The compressor 43 is configured to be driven by a driving force transmitted from the engine 23 via a transmission belt.

  The condenser 44 is disposed inside the dust-proof case 25, is supplied with engine cooling air on the windward side of the radiator 29, and cools the refrigerant by heat exchange with the engine cooling air. The engine cooling air from the cooling air introduction room 22b is guided by a wind guide 31 (see FIG. 5) provided in the communication path 26 and flows toward the lateral outer side of the condenser 44. 44 also cools the refrigerant by engine cooling air from the cooling air introduction room 22b.

  The capacitor 44 is supported by a support member (not shown) connected to the engine bonnet 21 or the dustproof case 25, and is supported by the engine bonnet 21 so as to swing together with the engine bonnet 21 and the dustproof case 25. Therefore, by switching the engine bonnet 21 to the open position, the capacitor 44 can be opened together with the dust-proof case 25 to the outer side of the machine body.

At the rear of the engine room 22, there is provided a vertical support (cabin support support) 19 that is connected across the lower part of the rear wall 13 and the body frame 1 and supports the operation cabin 10.
The receiver 45 is provided on the rear side of the cooling air introduction room 22 b in the engine room 22 and below the rear wall window 13 a of the operation cabin 10 in a state supported by the support column 19.

  The refrigerant circulation path 46 on the condenser side connecting the receiver 45 and the condenser 44 and the refrigerant circulation path 47 on the indoor unit side connecting the receiver 45 and the indoor unit 41 are arranged as shown in FIGS. .

  That is, the condenser-side refrigerant circulation path 46 and the indoor unit-side refrigerant circulation path 47 are constituted by a flexible refrigerant hose. The refrigerant circulation path 46 on the condenser side descends from the condenser 44 into the dustproof case 25, passes through the vicinity of the opening / closing axis X of the engine bonnet 21 from the lower end part of the dustproof case 25, and the engine room at the lower end part of the engine bonnet 21. The rear side of the engine room 22 is raised from this point to reach the receiver 45.

The refrigerant circulation path 47 on the indoor unit side rises through the upper and outer sides of the cooling air introduction room 22b from the receiver 45 to the inner side of the airframe from the upper end of the dustproof case 25, and reaches the rear end of the operating cabin 10. From this point, the vehicle enters the inside of the driving cabin 10 and reaches the lower end portion of the support column 17 toward the front near the inside of the right side wall 12, and passes through the interior of the support column 17 from the lower end portion to the upper end to enter the roof portion 14. It is arranged so as to reach the indoor unit 41 through the inside of the roof portion 14 toward the rear.
The column 17 is positioned on the rear side of the doorway 15 in the vertical direction of the fuselage, supports the side wall 12 and the roof portion 14, and has a door stop function for receiving the free end portion of the closed door 16.

[Other Embodiments] (1) In the above-described embodiment, an example in which the receiver 45 is disposed below the rear wall window 13a is shown. It is also possible to carry out by positioning it below.

(2) In the above-described embodiment, the example in which the receiver 45 is supported by the support column 19 of the driving cabin 10 is shown. However, the receiver 45 is configured to be supported by a dedicated support member extending from the body frame 1 or the driving cabin 10. May be implemented.

(3) In the above-described embodiment, an example in which the refrigerant circulation path 47 passes through the inside of the support column 17 is shown. However, the refrigerant circulation path 47 may be arranged so as not to pass through the inside of the support column 17.

(4) In the above-described embodiment, the example in which the condenser 44 is disposed on the lateral outer side of the engine 23 has been described. However, the condenser 44 may be disposed in the cooling air introduction room 22b or may be disposed outside the engine bonnet 21. .

(5) Although the dustproof case 25 is opened and closed together with the engine bonnet 21 in the above-described embodiment, the dustproof case 25 may be separated from the engine bonnet 21 and configured to be opened and closed. Then, the configuration may be implemented such that the capacitor 44 does not open and close together with the dust proof case 25, and the dust proof case 25 opens and closes while the capacitor 44 is supported on the engine bonnet 21 side.

(6) In the above-described embodiment, an example in which the cooling air introduction room 22b is provided has been described. However, the engine room 22 that does not include the cooling air introduction room 22b may be employed.

(7) In the above-described embodiment, the embodiment including the pair of drain water channels 42, 42 is shown. However, the drain water channel 42 may be provided with only one.

  INDUSTRIAL APPLICABILITY The present invention can also be used for a combine equipped with a self-elevating type threshing device in addition to a full-throwing type threshing device. In addition to the crawler traveling device, the present invention can also be used for a combine equipped with traveling wheels.

3 Driving part 10 Driving cabin 13a Rear wall window 14 Roof part 17 Post 19 Post (cabin support post)
DESCRIPTION OF SYMBOLS 21 Engine bonnet 22 Engine room 22a Main engine room 22b Cooling air introduction room 23 Engine 25 Dust-proof case 26 Communication path 30 Oil cooler 31 Wind guide 40 Air conditioner 41 Indoor unit 42 Drain water channel 44 Condenser 45 Receiver 47 Refrigerant circulation channel

Claims (9)

A driving cabin covering the driving part;
An engine room provided below the rear side of the operating unit;
A dust-proof case that is provided on the outer side of the airframe of the engine room and acts on engine cooling air;
And the air conditioning unit for said driving unit, is provided,
The indoor unit of the air conditioner is out of the roof portion close to the rear end portion in the roof of the driver cabin, in the machine body lateral width direction, provided at a position of the dust-proof case side closer to the central portion of the driver cabin,
A condenser of the air conditioner is disposed inside the dustproof case;
A cabin support column that supports the rear portion of the operation cabin is erected on the rear side of the engine room at a position closer to the dust-proof case side with respect to the central portion in the lateral width direction of the vehicle body,
Receiver of the air conditioning system, Oite the rear side of the engine room, to be located on the dust-proof casing side with respect to the cabin support posts, and, located between the indoor unit and the condenser in the vertical direction The combine supported by the cabin support column .   The combine according to claim 1, wherein the receiver is located below a rear wall window of the driving cabin. A strut is provided at a position closer to the rear of the side wall on the dustproof case side of the left and right side walls in the operation cabin,
The combine of Claim 1 or 2 with which the refrigerant circuit which connects the said indoor unit and the said receiver is extended along the said support | pillar . Before Kibo dust case is openable and closable,
The combine as described in any one of Claims 1-3 with which the said capacitor | condenser is supported in the state opened and closed with the said dust proof case inside the said dust proof case. Combine according to pre-logger capacitor to claim 1 that is deployed in the body next to the outside of the engine housed in the engine room.   The combine according to claim 5, wherein an oil cooler is arranged on the lateral outer side of the engine body. The engine room includes a main engine room that houses the engine, and a cooling air introduction room that is positioned above the main engine room and separated from the main engine room,
Provided in a state of being located across the main engine room and the cooling air introduction room on the lateral outer side of the engine room, forming a communication path between the main engine room and the cooling air introduction room, and cooling It has a dustproof case that removes dust from the wind.
A wind guide attached to the communication path across the inner part of the dust-proof case body and the condenser, and for directing the cooling air from the cooling air introduction room toward the lateral outer side of the condenser body. Combine according to 5 or 6 . The combine according to any one of claims 1 to 7 , wherein a pair of drain water channels of the indoor unit are distributed to both sides of the operation cabin and extend downward. The engine bonnet that forms the engine room is supported so as to be swingable and switchable between an open posture that is separated from the driving cabin and protrudes outward from the fuselage and a closed posture that is positioned below the driving portion. The combine as described in any one of 1-8 .

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