JP2011041498A - Combine harvester having condenser for cooling inside of cabin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester having a condenser for cooling the inside of a cabin. <P>SOLUTION: In the combine harvester that has the condenser for cooling the inside of the cabin and is equipped with a cooling apparatus for cooling the inside of the cabin in the cabin, a condenser unit is constituted of at least the condenser constituting a part of the cooling apparatus, a cooling fan and a receiver. An external air circulation space made to suck air from the side is formed at the back of the cabin and the condenser unit is made in a communicating state with the external air circulation space and arranged openably and closably to the rear side of the cabin. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine equipped with a capacitor that constitutes a cooling device for cooling the cabin.

  Conventionally, a combine is provided with a cooling device for cooling the cabin. The condenser as one member constituting such a cooling device is usually attached to the rear side wall of the cabin, and the hot air taken in by the cooling fan attached to the condenser to cool the condenser refrigerant and exchange heat is outside the cabin. It is configured to discharge towards the direction.

  For example, in Patent Document 1, a frame body serving as a cabin frame is hollowed, outside air is taken into the condenser portion by a fan suction force through the hollow frame body, the condenser is cooled, and the outside of the cabin rear wall is heated. It is configured to discharge the wind.

  In Patent Document 2, a capacitor housing space partitioned by a partition is formed behind the driver's seat in the cabin, outside air is taken from the outside of the cabin through the same space, the capacitor is cooled, and exhausted from the rear side wall of the cabin. It is configured to wind.

  Further, in Patent Document 3, an outside air suction chamber is formed in the rear part of the cabin, an outside air inlet is formed in the side wall of the outside air suction chamber, the outside air is taken in, and the condenser in the outside air suction chamber is cooled. .

Japanese Patent No. 3691632 JP 2004-284380 A Japanese Patent No. 3863994

However, in such a capacitor arrangement structure of each system configuration, for example, in order to inspect the capacitor, the partition plate of the capacitor part is opened from the cabin room, and the capacitor is exposed and inspected. In particular, in the case where the condenser housing space and the outside air suction chamber are partitioned by a partition as in Patent Document 2, the outside air is circulated through the space. In addition, the space in the cabin is narrowed, the comfort in the cabin is lowered, and the maintenance structure of the capacitor is complicated, which is disadvantageous in terms of cost.
Furthermore, in the structure shown in many of the above-mentioned patent documents, when an unexpected trouble such as clogging occurs in the outside air intake port, it is disposed on the outward portion of the capacitor. Due to the intake operation of the cooling fan, negative pressure is generated in the cabin, the condenser housing space, and the outside air suction chamber, and fine dust enters through small gaps such as doors, and dust spreads in the cabin and other spaces. There was a possibility that the above problems and a great trouble such as a decrease in outdoor air circulation and an increase in cooling efficiency may occur.

  Accordingly, in order to solve the above-described problem, a combine having a condenser for cooling a cabin according to claim 1 is a combine provided with a cooling device for cooling the interior of the cabin in the cabin, and at least a part of the cooling device. The condenser unit, the cooling fan, and the receiver constitute the condenser unit, and the outside air circulation space configured to be sucked from the side is formed on the back of the cabin, and the condenser unit is in communication with the outside air circulation space. It is characterized by being arranged to be openable and closable to the rear side wall of the cabin.

  According to a second aspect of the present invention, in the combine according to the first aspect, the outside air circulation space is formed through a partition wall in the rear part of the cabin, and the condenser unit is configured to take in the outside air from the side of the cabin. It is arranged so as to face the distribution space.

  According to a third aspect of the present invention, in the combine according to the first or second aspect, the partition wall that partitions the rear part in the cabin is formed in a substantially convex curve toward the inner direction, and the outside air circulation space is made as much as possible. It can be formed widely.

  According to the first aspect of the present invention, in the combine provided with a cooling device for cooling the interior of the cabin in the cabin, the capacitor unit is configured by at least the capacitor constituting the cooling device, the cooling fan, and the receiver. At the same time, an outside air circulation space configured to suck air from the side is formed on the rear surface of the cabin, and the condenser unit is in communication with the outside air circulation space so as to be openable and closable to the rear side wall of the cabin. Therefore, when performing maintenance on the capacitor and related members, the capacitor unit can be opened to the outside and maintenance can be performed from the outside, and in particular, the capacitor window on the back of the cabin is opened for inspection. In this case, since the capacitor unit is largely open to the outside, it is possible to perform inspection work using a wide space, and even if an air circulation failure occurs in the outside air circulation space configured to inhale from the side. The negative pressure of the space does not reach the cabin, and there is an effect that fine dust can be prevented from entering through the door gap.

  According to the second aspect of the present invention, the outside air circulation space is formed in the rear part of the cabin via the partition wall, and the condenser unit is disposed so as to face the outside air circulation space configured to suck air from the side of the cabin. Therefore, the indoor space in the cabin can be completely separated from the outside air circulation space facing the condenser unit, and when the cooling fan is driven, the negative pressure in the outside air circulation space reaches the indoor space in the cabin. And there is an effect that fine dust does not enter from the gap of the cabin door.

  According to the invention of claim 3, since the partition wall that partitions the rear part in the cabin is formed in a substantially convex curve toward the inner direction, the flow path of the outside air that is sucked from the side can be widely formed. There is an effect that the distribution efficiency is improved, the cooling efficiency of the condenser is increased, and the function of the cooling device can be improved.

It is the whole left side view of a combine. It is a whole right side view of a combine. It is a side view of a cabin. It is a rear view of a cabin. It is a perspective view of a cabin. It is a perspective view of a capacitor unit. It is sectional drawing of a cabin.

  Embodiments of the present invention will be described below.

  A combine having a cooling capacitor for cabin according to the present invention is a combine provided with a cooling device for cooling the interior of the cabin in the cabin, and includes at least a capacitor, a cooling fan, and a receiver that constitute a part of the cooling device. In addition to constituting the condenser unit, an outside air circulation space is formed on the back surface of the cabin to be sucked from the side, and the condenser unit is in communication with the outside air circulation space so that it can be opened and closed to the rear side wall of the cabin. Has been established.

  Further, the outside air circulation space is formed at the rear part in the cabin via a partition wall, and the condenser unit is disposed so as to face the outside air circulation space configured to suck air from the side of the cabin.

  Moreover, the partition wall that partitions the rear part in the cabin is formed in a substantially convex curve toward the inner direction, so that the outside air circulation space can be formed as wide as possible.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall left side view of the combine, FIG. 2 is an overall right side view of the combine, FIG. 3 is a side view of the cabin, FIG. 4 is a rear view of the cabin, FIG. 5 is a perspective view of the cabin, and FIG. FIG. 7 is a perspective view of the cabin.

  As shown in FIGS. 1 and 2, the combine A according to the present invention is provided with an airframe frame 2 on a pair of left and right crawler type traveling portions 1, 1, and a cutting frame 3 at the left front end of the airframe frame 2. The mowing unit 4 and the conveying unit 5 are attached to be movable up and down, and the cereal transfer unit 6, the threshing unit 7 and the sorting unit 8 are disposed on the left front part on the aircraft frame 2, and the slaughtering process is performed on the rear part. While the portion 9 is disposed, the cabin 10 is disposed in the right front portion on the machine body frame 2 and the grain storage portion 11 is disposed in the middle portion on the right side. Reference numeral 12 denotes an auger for general grain use.

  In this way, the cereals are harvested by the reaping unit 4, and the harvested cereals are transported to the rear upper cereal transporting unit 6 by the transport unit 5, and the cereals are delivered to the cereal transporting unit 6. While the culm transfer unit 6 pinches the stock of cereal rice cake, it is moved backward while the tip is inserted into the threshing unit 7.

  At this time, the head of the cereal is threshed by the threshing unit 7, and the threshed grain is sorted by the sorting unit 8, and only the refined grains are conveyed and stored in the grain storage unit 11, as necessary. Then, it is carried out via the auger 12.

  Further, the threshed cereal is transported to the waste processing unit 9 as waste, and is shredded and discharged by the waste processing unit 9.

  As shown in FIG. 7, the cabin 10 is formed in a substantially rectangular box shape and has an operation unit 19 provided therein, and the operation unit 19 is provided with a steering column 21 upright in front of the floor 20. A steering handle 22 is attached to the upper end of the steering column 21, and a driver's seat 23 is disposed at a rear position of the steering handle 22.

  In addition, a side operation column 24 is disposed in the driver 19 from the front of the driver seat 23 to the left side.

  Further, as shown in FIG. 3, a cooling / heating device 29 is provided in the ceiling portion 28 of the cabin 10, and cool air or warm air is blown out from the outlet 30 provided in the ceiling portion 28, so that the cabin 10 Can be cooled or heated. 31 is a windshield, 32 is a left opening / closing window, and 33 is an opening / closing door.

  That is, the air conditioner 29 is provided with an evaporator (not shown) in an air duct (not shown) in the ceiling portion 28 of the cabin 10, and between the evaporator and the capacitor unit U including the condenser 41, the receiver 51, and the like. In addition, a refrigerant supply hose 52 forming a refrigerant supply flow path and a refrigerant return hose 53 forming a refrigerant return flow path are interposed, a compressor (not shown) is provided in the middle of the refrigerant return hose 53, and the refrigerant A refrigerant filtering / drying receiver 51 that is a part of the capacitor unit U is provided in the middle of the supply hose 52.

  The cold air generated from the evaporator is pumped from the air guide duct to the outlet 30.

  The capacitor unit U is attached to a unit holding plate 70 pivotally attached to the rear side wall 40 of the cabin 10 so as to be openable and closable outward.

  That is, a rectangular mounting window 40a (see FIG. 6) is formed on the rear side wall 40 of the cabin 10, and the lower end edge of the unit holding plate 70 is pivotally attached to the lower side of the mounting window 40a. Thus, the mounting window 40a is configured to be openable and closable.

  Reference numeral 71 denotes a pivotal support portion that pivotally attaches the lower end portion of the unit holding plate 70 and the rear side wall 40 of the cabin 10 located below the attachment window 40a, and 72 denotes a case where the attachment window 40a is closed by the unit holding plate 70. Further, it is a fixing tool for fixing the unit holding plate 70 to the rear side wall 40 of the cabin 10, and is provided at the upper left and right end portions and the upper central portion of the unit holding plate 70. Reference numeral 73 denotes a receiving hole for the fixture 72 provided on the rear side wall 40.

  That is, the unit holding plate 70 is configured to be attached to the rear side wall 40 of the cabin 10 by closing the mounting window 40a by screwing the unit holding plate 70 to the rear side wall 40 of the cabin 10 with a bolt as a fixture 72 from the outer side. is doing.

  In addition, an outside air circulation window 70a is formed in the center of the unit holding plate 70, and a condenser unit U is disposed in the outside air circulation window 70a. From the side of the cabin 10 by a cooling fan 42 described later. Heat exchange is performed by inhaling the outside air and bringing the outside air flowing in through the outside air circulation window 70a into contact with the condenser unit U.

  The capacitor unit U includes a cooling fan 42 disposed outside the unit holding plate 70, a capacitor 41 disposed inside the cooling fan 42, and a lateral side of the outside air distribution window 70 a of the unit holding plate 70. And a receiver 51 provided on the outer surface of the.

  The cooling fan 42 is disposed so as to close the outside air circulation window 70a at the center of the unit holding plate 70, and exchanges heat while applying the air a sucked from the side of the cabin 10 to the condenser 41 to rear the side wall of the cabin 10. 40 functions to discharge outward.

  The condenser 41 is formed of a zigzag refrigerant circulation pipe, and is disposed on the unit holding plate 70 so as to overlap the cooling fan 42 on the upper side (inside) of the cooling fan 42. A refrigerant supply hose 52 and a refrigerant return hose 53 communicated with the condenser 41 are respectively communicated with the receiver 51 and the compressor. Reference numeral 74 denotes a bracket for attaching the capacitor 41 to the unit holding plate 70.

  The capacitor unit U configured in this manner is integrated with the unit holding plate 70 and attached to an attachment window 40a formed on the rear side wall 40 of the cabin 10 so as to be freely opened and closed. That is, when the mounting window 40a formed on the rear side wall 40 of the cabin 10 is closed by the unit holding plate 70, the cooling function of the normal capacitor unit U is set. On the other hand, at the time of maintenance work such as cleaning of the capacitor 41, the fixing member 72 is released, the unit holding plate 70 is opened outwardly around the lower pivots 71, 71, and the holding receiving piece 74 is horizontal. It is assumed that it is held in

  In such a state, the condenser 41 disposed inside the cooling fan 42 is in a state of being visible in a plane on the inner surface of the unit holding plate 70 in the horizontal state, and is located behind the cabin 10 or laterally from the cabin 10. It will be in the state which can be maintained easily.

  In addition, an outside air circulation space S that circulates outside air from the side of the cabin 10 is formed at the rear part in the cabin 10, and the condenser 41 is exposed to the outside air circulation space S. That is, the partition wall 46 is formed behind the driver seat 23 in the cabin 10, thereby forming a constant outdoor air circulation space S between the partition wall 46 and the rear side wall 40.

  In addition, outside air inlets 44 and 44 are opened in the right rear wall 47 of the cabin 10, and a net (not shown) is stretched over the outside air inlet 44. The outside air inlet 44 is in communication with the outside air circulation space S, and the outside air is cooled by the condenser 41 while the outside air is taken into the outside air circulation space S through the outside air inlet 44 by the suction force of the cooling fan 42. The air after heat exchange is exhausted to the rear of the cabin 10. Reference numeral 45 denotes an indoor outside air intake for taking outside air into the indoor space R in the cabin 10.

  The right end of the partition wall 46 is slightly inclined forward and is connected to the right partition wall 48b of the entrance of the cabin 10 so that the end edge of the partition wall 46 is inclined so that the interior of the cabin 10 While taking the space R wide, the outside air inlet 44 is formed as wide as possible so as to take in as much outside air as possible. On the other hand, the left end of the partition wall 46 is connected to the left partition wall 48 a at the rear of the side operation column 24.

  Thus, by partitioning the rear of the cabin 10 with the partition wall 46, the indoor space R in the cabin 10 and the outside air circulation space S facing the condenser unit U can be completely separated, and the cooling fan 42 When the engine is driven, the negative pressure in the outside air circulation space S does not reach the indoor space R in the cabin 10, and fine dust does not enter from the gap of the door 33 of the cabin 10.

  The partition wall 46 that partitions the rear portion in the cabin 10 is formed in a substantially convex curve toward the interior direction of the cabin 10 as shown in FIG. With this configuration, it is possible to widely form a flow path for the outside air sucked from the side of the cabin 10, improve the outside air flow efficiency, increase the cooling efficiency of the condenser 41, and improve the function of the cooling device. There is an effect that can.

  Moreover, the connection part 52a of the refrigerant | coolant supply hose 52 connected to the discharge port of the receiver 51 and the connection part 53a of the refrigerant | coolant return hose 53 connected to the supply port of the capacitor | condenser 41 are comprised with the material which can be bent freely. That is, since the connection portion 52a of the refrigerant supply hose 52 and the connection portion 53a of the refrigerant return hose 53 are bendable as described above, when the capacitor unit U is opened around the pivot portions 71 and 71, as in the conventional case. There is no need to temporarily disconnect the capacitor 41, the receiver 51, and the like from the refrigerant supply hose 52, the refrigerant return hose 53, and the like.

  Therefore, by opening the capacitor unit U with the pivot portions 71 and 71 as fulcrums, the inner portion of the unit holding plate 70 is widened to clean the capacitor 41, the capacitor 41, the refrigerant supply hose 52, the refrigerant return hose. There is an effect that it is possible to quickly perform a maintenance check such as 53.

  Further, the heating unit includes a heat exchanger (not shown), and a hot water supply hose (not shown) is provided between the heat exchanger and the engine 13 disposed in the lower front portion of the grain storage unit 11. A hot water return hose (not shown) is interposed.

  The refrigerant supply hose 52 and the refrigerant return hose 53 are arranged along the left rear part of the cabin 10 and extended toward the ceiling part 28, and each tip part is connected to the air conditioner 29. Reference numeral 54 denotes a cover provided at the left rear portion of the cabin 10.

  As described above, the refrigerant supply hose 52 and the refrigerant return hose 53 are arranged along the left rear portion of the cabin 10 so that the refrigerant supply hose 52 and the refrigerant return hose 53 are disposed in the outside air circulation space S as in the related art. Compared to the above, there is an effect that the work at the time of assembly becomes easier and the inspection work such as maintenance becomes easier.

  As described above, in the embodiment of the present invention, the receiver 51 and the cooling fan 42 are attached to the outer side surface of the unit holding plate 70, so that the unit holding plate 70 has the inner side surface in the outside air circulation space S. The width of the outside air circulation space S immediately after the driver's seat 23 can be formed as small as possible, and the width of the indoor space R in the cabin 10 can be increased. Can be secured.

  Therefore, the operator who sits on the driver's seat 23 in the cabin 10 and performs various operations does not give a feeling of pressure, and the comfortability in the cabin 10 can be made comfortable and the work efficiency can be improved.

  Further, by adopting a structure in which only the capacitor 41 excluding the receiver 51 in the capacitor unit U is protruded from the inner side surface of the unit holding plate 70, the capacitor 41 and the inner side surface of the unit holding plate 70 are provided as in the prior art. Compared with the structure in which the receiver 51 is protruded, the disturbance of the air flowing through the outside air circulation space S can be reduced, the condenser 41 can be cooled more efficiently, and the number of places where dust adheres can be reduced and maintenance can be greatly improved. There is an effect that can be completed in a short time.

  The ceiling portion 28 of the cabin 10 is configured by combining three sets of units, and is configured by mounting an equipment mounting case on a so-called concave inner roof and covering it with a reverse concave outer roof as an exterior. Yes. In the front part of the inner roof, an air conditioner 29 is disposed in the equipment mounting case, and drain water discharged from the air conditioner 29 is discharged out of the cabin 10 by a drain hose. The drain hose is arranged at two places on the front and rear sides of the air conditioning unit 29. The rear drain hose is disposed on the left rear portion along the left side surface of the inner roof, and further disposed along the left rear sidewall from the left rear portion. And after storing drain water, it uses as cooling water which cools the capacitor | condenser 41 mentioned above, uses as a washer liquid and washing water which wash | clean a windshield, or drain water once filtered in the cabin 10 You may make it utilize for humidification.

A Combine S Outside air circulation space U Condenser unit 1 Traveling part 2 Airframe frame 3 Cutting frame 4 Cutting part 5 Carrying part 5 Grain transporting part 7 Threshing part 8 Sorting part 10 Cabin 29 Air conditioning unit 41 Condenser 42 Cooling fan 51 Receiver

Claims (3)

In a combine equipped with a cooling device for cooling the cabin interior in the cabin,
A condenser unit is constituted by at least a condenser that constitutes a part of the cooling device, a cooling fan, and a receiver, and an outside air circulation space that is configured to suck air from the side is formed on the back surface of the cabin.
In addition, the combiner having a condenser for cooling in a cabin, wherein the condenser unit is placed in communication with an outside air circulation space so as to be opened and closed to a rear side wall of the cabin.   The outside air circulation space is formed in the rear part of the cabin via a partition wall, and the condenser unit is disposed so as to face the outside air circulation space configured to intake air from the side of the cabin. The combine which has the capacitor | condenser for cooling in a cabin as described in any one of.   The cabin according to claim 1 or 2, wherein a partition wall for partitioning a rear portion in the cabin is formed in a substantially convex curve toward an inner direction so that an outside air circulation space can be formed as wide as possible. Combine with a condenser for internal cooling.

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