KR102588674B1 - Combine - Google Patents

Abstract

The combine begins. The combine according to the present invention is a combine in which a grain tank is disposed on one side of a self-propelled traveling aircraft to which a harvesting unit is attached to be capable of being raised and lowered, and an engine room is formed between the gas operation unit on the front side of the traveling aircraft and the grain tank, in the engine room. A radiator is installed on the side adjacent to the deployed engine, and a surge tank is installed outside the engine room and at least higher than the top of the radiator to surge air generated as the temperature of the coolant rises. It can be effectively collected and removed using a tank, thereby improving cooling performance.

Description

Combine {Combine}

The present invention relates to a combine, and in particular, to a combine configured to effectively collect and remove air generated as the temperature of coolant rises using a surge tank.

Combines are generally equipped with diesel engines, and the engines can easily overheat due to the nature of the work, which is mainly performed in a high-load environment. To prevent engine overheating, a cooling system that cools the high-temperature coolant circulating inside the engine with air and supplies it back to the engine is generally applied. This cooling system usually includes a radiator and water pump.

For example, in Japanese Patent Laid-Open No. 2011-188815, a radiator is disposed in the outside air introduction path on the side of the aircraft so that cooling can be performed by wind generated by the suction force of a cooling fan sucking toward the engine body, and the radiator is disposed adjacent to the outside of the radiator. A configuration in which an oil cooler, an intercooler, etc. are arranged within a frame is disclosed.

Most cooling systems applied to conventional combines, including the configuration disclosed in Japanese Patent Publication No. 2011-188815, are configured to simultaneously cool the radiator, oil cooler, and intercooler using wind generated by the engine's cooling fan. do. That is, it is configured to cool the coolant, working fluid, and intake air with wind generated by the suction force of the cooling fan.

For this purpose, based on the air flow generated by the cooling fan, a radiator, oil cooler, and intercooler are formed as an assembly in front of the fan shroud surrounding the cooling fan, allowing outside air to pass through the oil cooler and intercooler. It is then forced into the engine room through the radiator, allowing efficient cooling performance with a single cooling fan.

A thermostat is installed on the coolant inlet side of the radiator to maintain the coolant temperature below a certain temperature. The thermostat operates according to the temperature of the coolant to control the flow of coolant. If the coolant is below a set temperature, the flow path connected to the radiator is closed, and if the coolant is above the set temperature, the flow path is opened to allow flow to the radiator side.

In other words, after the engine is running, the inflow of coolant into the radiator is blocked by the thermostat until the temperature of the coolant reaches a certain temperature, allowing the engine to be preheated to an appropriate temperature in a short period of time. When the temperature exceeds a certain temperature, the thermostat turns on the coolant. By allowing radiator inflow, engine preheating and heat dissipation to the engine can be efficiently implemented.

Meanwhile, coolant has the characteristic of repeating contraction and expansion depending on temperature, and when the temperature rises, some of the evaporation remains in the coolant in the form of bubbles, which acts as a major factor in reducing engine cooling performance. In other words, the main factor that reduces cooling performance is air caused by an increase in coolant temperature. Nevertheless, the conventional combine cooling system lacks measures to prevent this.

Japanese Patent Publication No. 2011-188815 (publication date 2011. 09. 29)

The technical problem that the present invention seeks to solve is to provide a combine with a cooling system that can effectively collect and remove air generated as the temperature of the coolant increases using a surge tank.

As a means to solve the problem, the present invention,

In the combine, a grain tank is disposed on one side of a self-propelled traveling aircraft with a harvesting unit attached to the front so as to be capable of being raised and lowered, and an engine room is formed between the gas operation unit on the front side of the traveling aircraft and the grain tank, in the engine room adjacent to the side of the engine. A combine is provided in which a radiator is installed and a surge tank is installed outside the engine room and at least higher than the top of the radiator.

According to a preferred embodiment of the present invention, a surge tank may be installed in the free space between the gas operation unit and the threshing portion on the side of the gas operation unit.

According to another preferred embodiment of the present invention, a surge tank may be installed in the spare space behind the gas operation unit between the gas operation unit and the grain tank.

In addition, the air discharge hose is connected to the water pipe on the coolant discharge side of the radiator in a branched structure, and the surge tank is connected to the end of the air discharge hose, so that the surge tank is connected to the coolant discharge side of the radiator through the air discharge hose. It can be.

Preferably, the engine is arranged transversely on the fuselage frame of the engine room so that the crankshaft faces the width direction of the fuselage, and the radiator is installed to open and close the entrance of the engine room opening toward the side of the fuselage in a swing-proof manner. It may be configured to form a single radiator assembly with an intercooler and an oil cooler inside the radiator frame between the cover unit and the fan shroud surrounding the cooling fan of the engine.

According to the combine according to an embodiment of the present invention, the air generated as the water temperature of the coolant increases is moved along the coolant pipe (water pipe) through a branched air discharge hose to a surge tank having a cavity of a predetermined volume ( It can naturally flow into the surge tank and be discharged to the outside. As a result, cooling performance is stable and normal engine output can be maintained.

In addition, as the surge tank for collecting and discharging air is located higher than the radiator, even in situations where the temperature of the coolant rises abnormally, such as over heat, the coolant is not discharged through the surge tank and air ( Air) can be discharged stably, and as the surge tank is placed around the fuselage control unit outside the engine room, it has an advantageous effect in terms of maintainability.

1 is a right side view of a combine according to an embodiment of the present invention.
Figure 2 is a left side view of a combine according to an embodiment of the present invention.
Figure 3 is a top view of a combine according to an embodiment of the present invention.
Figure 4 is a conceptual diagram of a threshing and sorting device applied to the combine shown in Figures 1 to 3.
Figure 5 is a view of the aircraft control unit and engine room from the rear of the traveling aircraft.
Figure 6 is a view of the aircraft control unit and engine room from the direction of the threshing and sorting device.
Figure 7 is a view of the aircraft control unit and engine room from the front of the traveling aircraft.
Figure 8 is a top view of a combine according to another embodiment.
Figure 9 is a plan view taken from the aircraft control unit shown in Figure 8.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In explaining the present invention, detailed descriptions of known configurations will be omitted or simply described, and detailed descriptions of configurations that may unnecessarily obscure the gist of the invention will be omitted.

The embodiments described below are provided so that those skilled in the art can easily understand the technical idea of the present invention, and the present invention is not limited to the proposed form. In addition, it should be noted that the matters expressed in the attached drawings may be different from the actual implementation form in the schematic drawings in order to easily explain the embodiments of the present invention.

Additionally, the expression 'including' certain components is an 'open' expression that simply refers to the existence of the components and should not be understood as excluding additional components.

Figures 1 and 2 are side views of the combine according to an embodiment of the present invention viewed from the right and left, respectively, and Figure 3 is a plan view of the combine shown through Figures 1 and 2 seen from above. With reference to these drawings, let us first briefly look at the overall configuration of the combine according to an embodiment of the present invention.

As shown in Figures 1 to 3, the combine according to an embodiment of the present invention is largely composed of a body (1) and a reaping unit (3) in front of the body (1). The body 1 includes a traveling device 2 having a pair of running wheels 20L and 20R of a crawler structure, and the reaping unit 3 is inclined downward toward the front at the front of the traveling body 1. It is connected to the traveling body (1) so that it can be lifted up and down via the installed harvesting frame (32).

The reaping unit (3) is equipped with two sets of bariquant type reapers with opposite operating directions, and the crops cut by the reapers are transferred upward to the conveyance means (rotating chain) constituting the reaping unit (3). It is safely returned to the feeder (4) on the side of the body (1) through a configuration in which an unfolding transfer bar is installed, and is moved to the threshing and sorting device (8) on one side of the body (1) by the feeder (4). .

While passing through the threshing/sorting device (8), the ears of the crop are threshed, and at the same time, a sorting process is performed to filter out the grains and straws included with the grains of the threshed crop, and through the sorting process, the final sorted product is performed. The grains are returned to the grain tank (9) inside the other side of the gas, stored temporarily, and discharged out of the gas (1) through an auger (6).

Manipulations related to raising and lowering the reaping unit (3) and running the aircraft are performed by manipulating various levers around the aircraft control unit (7) located in the front of the other side of the aircraft (1), that is, the lower part of the driver's seat and the grain tank (9). An engine 10 that generates power for driving the aircraft and driving various devices provided in the combine is disposed in the spare space between them.

The aircraft control unit 7 may be exposed or may be surrounded by a cabin as shown in the drawing, and the engine is installed between the grain tank 9 and the aircraft control unit 7 so that the crankshaft faces the left and right width directions of the aircraft. The engine 10 is horizontally mounted in the room (hereinafter referred to in FIG. 5). And a hinged dustproof cover unit (11) between the fuselage control unit (7) and the grain tank (9) covers the engine room from the fuselage side.

Figure 4 is a conceptual diagram of a threshing and sorting device of a combine for threshing and sorting crops provided from a reaping unit.

As shown in FIG. 4, the threshing and sorting device 8 includes a threshing bin 50 for threshing and a threshing unit consisting of a water net 54 disposed below the threshing bin 50. On the circumferential surface of the threshing bin (50), processing teeth (52) for skimming out grains attached to the ears of crops are attached in a certain arrangement, and water nets (54) are spaced apart from the threshing bin at a predetermined distance to cover the lower area of the threshing bin. It is arranged in a surrounding form.

The threshing bin 50 is rotated by the power of the engine 10, which is branched and transmitted through a work transmission system, and has an impact effect due to the rotation of the threshing bin 50, a sweeping action by the gear, and a threshing bin 50 and Threshing is performed on the crops returned to the threshing unit 5 by friction between the water nets 54, and the grains threshed through the threshing process pass through the water net 54 to the sorting unit below. Supplied by drop.

The sorting unit includes a oscillating separator 80 that oscillates and sorts the grains threshed through the threshing unit, and a sorting wind generator 85 that generates wind for weight sorting. The oscillating separator (80) is oscillated back and forth and left and right in the form of winnowing a key, which is a tool used to filter out chaff or tickle, and the sorting wind generator (85) is directed toward the oscillating separator (80) for sorting. Provides wind.

For more precise selection across multiple stages, the oscillating separator (80) consists of a feed pan (82), a chaff sieve (83) continuous behind the feed pan, and a sieve case (81) surrounding them. It is composed. The feed pan 82 has a configuration in which wedge-shaped concave-convex pieces inclined with respect to the grain moving direction are formed at regular intervals, and the chaff sieve 83 is provided with a plurality of chaff pins (symbols omitted).

Among the grains that have passed through the chaff sieve (83), grains with a relatively heavy specific gravity fall toward the first transfer screw (87) behind the screening wind generator (85) and are returned to the grain tank (9) inside the other side of the aircraft, Among the grains that have passed through the chaff sieve (83), relatively light grains and gums are blown toward the second transfer screw (89) under the influence of the wind generated by the sorting wind generator (85).

The sorting objects (grains, gums, etc.) blown by the second transfer screw 89 are returned to the feed pan 82 through the second transfer screw 89, and are returned to the feed pan 82, such as rags or straws filtered out during the weight sorting process. Gumbul, etc. is sucked into the exhaust fan 86 disposed at the rear of the threshing unit 5 and then discharged to the outside of the aircraft through an outlet formed at the rear of the aircraft.

Figure 5 is a view of the aircraft control unit and engine room viewed from the rear of the traveling aircraft.

Referring to FIG. 5, the engine room 12 formed between the gas control unit 7 and the grain tank 9 is protected by a dustproof cover unit 11 that opens and closes in a hinged manner toward the outside of the gas side. The engine 10 is mounted transversely on the fuselage frame of the engine room 12 so that the crankshaft faces the dustproof cover unit 11, and a radiator 13 is provided between the dustproof cover unit 11 and the engine 10, Cooling devices such as an oil cooler (14) and intercooler (15) are installed.

The dustproof cover unit 11 covers the oil cooler 14 and intercooler 15 mounted inside the radiator frame 16 from the outside of one side of the fuselage to protect them from the external environment, and protects the engine room 12 from the outside of one side of the fuselage. It is provided with an introduction part 110 that is open in an arc shape to introduce external air into the side. In addition, a rotary screen (symbol omitted) is installed in the introduction part 110 to remove foreign substances introduced together with the outside air from the outside of the fuselage.

The radiator 13 constituting a cooling device is disposed in front of the cooling fan 102 of the engine 10, which is mounted laterally in the engine room 12 toward the vehicle body width direction. The radiator 13 is specifically, the intercooler 15 and the oil cooler inside the radiator frame 16 between the dustproof cover unit 11 and the fan shroud 17 surrounding the cooling fan 102 of the engine 10. It is provided together with (14) to form one radiator assembly.

That is, based on the air flow generated by the cooling fan 102, the radiator 13, oil cooler 14, and intercooler 15 form an assembly in front of the fan shroud surrounding the cooling fan 102. It is configured in such a way that the outside air passes through the oil cooler (14) and the intercooler (15) and then is forcefully introduced into the engine room (12) through the radiator (13), thereby enabling efficient cooling performance with a single cooling fan (102). there is.

Figure 6 is a view of the aircraft operation unit and engine room viewed from the direction of the threshing and sorting device, and Figure 7 is a view of the aircraft operation unit and engine room viewed from the front of the traveling aircraft.

Referring to FIGS. 6 and 7 together with FIG. 5 attached above, a surge tank (18) having a cavity of a certain volume is installed on a side adjacent to the gas operation unit (7) outside the engine room (12). The surge tank 18 is a means for discharging air generated as the temperature of the coolant increases, and may be placed on the adjacent side of the gas control unit 7 at a position at least higher than the uppermost part of the radiator 13.

The surge tank 18 may preferably be installed to be located higher than the radiator 13 in the free space between the gas operation unit 7 and the threshing portion on the side of the gas operation unit 7, and located on the coolant discharge side of the radiator 13. It may be configured to be connected to the coolant discharge side of the radiator 13 through an air discharge hose 180 branched from the water pipe 130 (coolant discharge hose).

According to this configuration, the air generated as the water temperature of the coolant rises naturally flows into the surge tank (18) through the branched air discharge hose 180 while moving along the water pipe and is discharged from the coolant. It is separated and removed, and the coolant from which the air has been removed flows into the engine 10 to dissipate heat for the engine 10, thereby enabling more efficient cooling performance.

In addition, the surge tank 18 can prevent water hammer due to sudden start-up or sudden stop of the water pump, or sudden opening and closing of the thermostat, so that the piping or valve (thermostat) of the coolant circulation system can be prevented. ), etc., and has the effect of extending the life of the coolant, and can minimize the fluctuation of the coolant level, which has an advantageous effect not only in terms of heat dissipation efficiency but also in solving overheat problems.

On the other hand, Figures 8 and 9 are diagrams showing another preferred embodiment of the present invention, Figure 8 is a top view of a combine according to another embodiment, and Figure 9 is an excerpt of the gas operation part from the combine shown in Figure 8 It is a floor plan.

As shown in the examples of FIGS. 8 and 9, the surge tank 18 may be installed in the spare space behind the gas operation unit 7 between the gas operation unit 7 and the grain tank 9. Of course, in this case as well, it is installed to be at least higher than the uppermost part of the radiator (13, see Figure 5), and is connected to the coolant circulation path through the air discharge hose 180 branching from the water pipe on the coolant discharge side of the radiator (13). Organize it as much as possible.

According to the embodiment of the present invention discussed above, the air generated as the water temperature of the coolant rises moves along the coolant pipe (water pipe) through a branched air discharge hose to a surge tank having a cavity of a predetermined volume ( It can naturally flow into the surge tank and be discharged to the outside. As a result, cooling performance is stable and normal engine output can be maintained.

In addition, as the surge tank for collecting and discharging air is located higher than the radiator, even in situations where the temperature of the coolant rises abnormally, such as over heat, the coolant is not discharged through the surge tank and air ( Air) can be discharged stably, and as the surge tank is placed outside the engine room, which has a complex internal structure, there is an advantage in terms of maintainability.

In the above detailed description of the present invention, only special embodiments thereof have been described. However, it should be understood that the present invention is not limited to the particular form mentioned in the detailed description, but rather is understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It has to be.

1: Aircraft 2: Traveling device
3: Reaping unit 4: Feeder
6: Auger 7: Aircraft control panel (driver’s seat)
8: Threshing/sorting device 9: Grain tank
10: Engine 11: Dustproof cover assembly
11: Dustproof cover unit 12: Engine room
13: Radiator 14: Oil cooler
15: intercooler 16: radiator frame
17: Fan shroud 18: Surge tank
20L, 20R: Running wheel 102: Cooling fan
110: Outdoor air introduction part 130: Water pipe
180: Air discharge hose

Claims (5)

In a combine in which a grain tank is disposed on one side of a self-propelled traveling aircraft with a harvesting unit attached to the front for elevation, and an engine room is formed between the gas operating unit on the front side of the traveling aircraft and the grain tank,
A radiator is installed on the side of the engine room adjacent to the engine, and a surge tank is placed outside the engine room so as to be at least higher than the top of the radiator.
The surge tank is disposed in the free space between the gas control unit and the threshing unit or in the free space behind the gas control unit between the gas control unit and the grain tank,
A water pipe is connected to the coolant discharge side of the radiator, an air discharge hose is connected in a structure that branches off from the water pipe, and the surge tank is connected to an end of the air discharge hose, so that air contained in the coolant flows into the water. A combine characterized in that it is configured to flow into the surge tank through the air discharge hose while moving along the pie and to be separated from the coolant.
delete delete delete According to claim 1,
The engine is arranged transversely on the fuselage frame in the engine room so that the crankshaft faces the fuselage width direction,
The radiator is installed with an intercooler and an oil cooler inside the radiator frame between a dustproof cover unit installed to open and close the entrance of the engine room opened toward the side of the aircraft and a fan shroud surrounding the cooling fan of the engine. A combine characterized in that it is configured to form a radiator assembly.

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