JP3838738B2 - Combine air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling device Konbai down.
[0002]
[Prior art]
Conventionally, a gas compression cooling device installed in a combine with a cabin is provided with a condenser in a duct for sucking and guiding air to an engine radiator, a cooler unit in a cabin, and a refrigerant provided on the feed pipe side. The interior of the cabin is cooled by a configuration in which a receiver dryer for inspecting and removing moisture and dust contained in the gas is installed outside the duct in the engine room.
[0003]
[Problems to be solved by the present invention]
However, cooling device according to the conventional configuration as described above, receiver-drier is mounted in a high temperature engine room, reducing the cooling efficiency of the cooling unit becomes to be heated therein of radiation heat In addition, there are problems such as complicating the mounting structure in the engine room.
[0004]
[Means for Solving the Problems]
Combine said combined cooling device of the present invention to solve the conventional problems, which were machine base cooling in the installed cabin (4) (3) to perform the gas compression type cooling device (2) In the duct (7) for guiding the air to the radiator (6) for cooling the engine (5) from the air inlet (51) of the engine cover (50) provided so as to be rotatable toward the side. The capacitor (20) of 2) and the receiver dryer (8) are arranged, the capacitor (20) is arranged on the front surface of the radiator (6), and the receiver dryer (8) is arranged on the duct (7) on the front surface of the capacitor (20). ) Is arranged close to one side.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a combine cooling apparatus according to the present invention will be described with reference to the drawings. In Figure 1 1 is a Konbai down with cabin 3 provided with cooling device 2 of the gas compression type according to the present invention, a machine base having a traveling apparatus 4a crawler type by the same arrangement as the conventional combined (traveling machine body ) A cutting part 4b and a threshing part 4c are provided from the front of 4, a control part 4d covered with the cabin 3 is installed on the side of the threshing part 4c, and a grain storage part (Glen tank) 4e is arranged behind this. Configured.
[0006]
The engine 5 is mounted below the seat 4f of the control unit 4d, and the radiator 6 that cools the engine 5 and the condenser 20 of the cooling device 2 and the duct (radiator wind guide tube) are located closer to the outside (right side). ) The outer periphery and the upper part of the duct 7 are covered with an engine cover 50 with 7 and the like sequentially provided.
Together are in the shape the engine cover 50 to hold the airtightness in the cabin 3 and edge separable therefrom by bonding after the door 30 of the cabin 3 that the leading edge, the cover surface and dustproof holes for air intake It opened as shown in FIG. 2 the air intake port 51 Do the, and that around the spindle 52 provided with a bottom on the machine base 4 toward the side as indicated by a dotted line in FIG. 3 rotatably switchable fixed It is installed so that it can.
[0007]
Next, the configuration of the cooling device 2 will be described. As shown in FIG. 7, the cooling device 2 includes a compressor 21 that pumps gas (refrigerant) , a condenser 20, a cooling unit 25 that includes an evaporator 22 and a blower 23 with an expansion valve 22a, and the cooling unit 25 and the condenser. 20 is manufactured by a well-known configuration by an element such as a receiver dryer 8 installed in the middle portion of the feed pipe 26 that sends a liquid in a high-temperature and high-pressure state. Reference numeral 27 denotes a return pipe for sending a low-temperature and low-pressure gas that connects the cooling unit 25 and the compressor 21.
[0008]
In the present embodiment, as shown in FIGS. 2 to 6, the cooling device 2 is provided with a compressor 21 on the machine base 4 behind the engine 5 and driven by a belt transmission mechanism 21 a. And the capacitor | condenser 20 is provided in the duct 7 in the front surface of the radiator 6, and the receiver dryer 8 is attached near one side as shown in FIG.
[0009]
As shown in FIGS. 5 and 6, the cooling unit 25 is mounted with a blowout port 25a and a suction port 25b arranged in the front-rear direction on the rear side of the ceiling plate in the cabin 3, and the feed pipe 26 and the return pipe 27 are connected to the cabin. Piping along 3 rear walls.
The feed pipe 26 and the return pipe 27 are made of aluminum pipes, which makes it possible to reduce weight and cost as compared with a conventional pipe using a rubber vip. I am doing so.
[0010]
Next, a description will be given of the structure of the radiator unit and the receiver-drier portion.
2 to 4, the engine 5 has the cooling fan 53 and sucked air from the engine cover 50 side disposed on the right side of the cabin 3 to cool the condenser 20, a radiator 6 and the engine 5, The radiator 6 is attached to the right side of the cooling fan 53 .
[0011]
The cylindrical duct 7 is attached to the radiator frame 60 on the outer periphery of the radiator 6 so as to open toward the engine cover 50, and the capacitor 20 is attached to the front surface of the radiator 6 in the duct 7.
In addition, the receiver dryer 8 has a simple mounting structure that does not protrude into the engine room by being detachably mounted on a bracket provided on a mounting wall 70 provided in the side wall of the duct 7, and from the air inlet 51 of the engine cover 50. Cooling can be performed simultaneously with the condenser 20 by the wind that enters.
[0012]
Then, as shown in FIG. 3, the sight glass 80 provided on the upper portion of the receiver dryer 8 for checking the status of the remaining amount of gas is in an unreasonable posture when the engine cover 50 is moved sideways as shown by a chain line. It is possible to easily and surely recognize without taking up water, and to easily remove moisture, dust and the like contained in the gas. A pressure switch 81 for detecting gas pressure is provided on the receiver dryer 8.
[0013]
In the combine 1 having the cooling device 2 configured as described above, the cooling fan 53 rotates as the engine 5 is started, and the air sucked from the engine cover 50 side passes through the duct 7 through the radiator 6. 5 is cooled. At this time, since the receiver dryer 8 is simultaneously cooled together with the condenser 20 in the duct 7, the cooling performance on the cooling unit 25 side can be improved and the interior of the cabin 3 can be cooled well.
[0014]
Therefore, the temperature is not raised unlike the receiver dryer 8 installed in the high temperature engine room outside the duct as in the conventional apparatus, and the cooling capacity can be improved satisfactorily. Also, if you want to inspection and maintenance of the receiver-drier 8, when the opening motion of the engine cover 50 to the side, receiver-drier 8 attached to the upstream side of the air intake in the duct 7 to be easily visible The maintenance work can be performed very easily.
[0015]
【The invention's effect】
As is apparent from the above description, the combine cooling apparatus according to the present invention has a duct 7 for guiding air from the air intake port 51 of the engine cover 50 provided so as to be pivotable toward the side to the radiator 6 that cools the engine 5. The condenser 20 and the receiver dryer 8 of the cooling device 2 are disposed inside, the condenser 20 is disposed on the front surface of the radiator 6, and the receiver dryer 8 is disposed on one side of the duct 7 on the front surface of the capacitor 20. Thus, simultaneously with the radiator 6 that cools the engine 5, the condenser 20 and the receiver dryer 8 can be easily cooled, and the cabin 3 can be cooled well.
[0016]
When the inspection or maintenance work of the receiver dryer 8 is desired, the front surface of the receiver dryer 8 is opened by moving the engine cover 50 to the side, and the receiver dryer 8 and the gas provided on the upper side thereof are opened. The sight glass 80 for confirming the status such as the remaining amount can be easily visually confirmed, and maintenance work and the like can be easily performed.
[Brief description of the drawings]
FIG. 1 is a side view of a combine.
FIG. 2 is a side view of an engine unit.
FIG. 3 is a rear view of the engine unit of FIG. 2;
4 is a plan view of the engine unit of FIG. 2;
FIG. 5 is a side view of the cabin.
6 is a rear view of FIG. 5. FIG.
FIG. 7 is a circuit diagram of a cooling device.
[Explanation of symbols]
1 Konbai down <br/> 2 and cooling device 3 cabin 4 machine stand 5 Engine 6 radiator 7 duct 8 receiver drier 20 capacitor 25 cooling unit 53 cooling fan 80 the sight glass

Claims (1)

In a combine in which the cooling in the cabin (3) installed on the machine base (4) is performed by the gas compression type cooling device (2).
A cooling device (2) is provided in a duct (7) for directing air from an air intake opening (51) of an engine cover (50) provided so as to be pivotable toward the side to a radiator (6) for cooling the engine (5). The capacitor (20) and the receiver dryer (8) are disposed, the capacitor (20) is disposed on the front surface of the radiator (6), and the receiver dryer (8) is disposed on the front surface of the capacitor (20) in the duct (7) . Combine air conditioner placed close to one side.

Images