JP2022070660A - combine - Google Patents

Abstract

To provide a combine capable of removing dust flying near a steering part.SOLUTION: A combine includes a reaping device 3 for harvesting grain culms in a field, a thresher 4 for threshing and sorting the grain culms, on the left rear of the reaping device 3, a steering part 5 for steering a machine body, on the right rear of the reaping device 3, and a dust removal fan 11 for removing dust and dirt near the reaping device 3 or the steering part 5, on a right upper part of the reaping device 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a combine equipped with a dust exhaust fan for removing dust and dirt in the vicinity of a cutting section and a control section.

Conventionally, the rotation shaft of the dust exhaust fan for the control unit provided in the feeder case is penetrated from the side of the feeder case, and one end of the rotation shaft is provided in the direction outside the side wall of the feeder on the opposite side of the dust exhaust fan. A technique is known in which a dust exhaust fan is operated by using a sprocket in a transmission mechanism for driving a unit. (Patent Document 1)

Japanese Unexamined Patent Publication No. 11-178428

However, in the configuration in which the dust exhaust fan is installed near the feeder house, it is inefficient to remove the dust flying to the control unit and its vicinity.

Therefore, an object of the present invention is to provide a combine capable of removing dust flying in the vicinity of the control unit by providing a dust exhaust fan in front of the control unit.

The present invention that solves the above problems is as follows.

The invention according to claim 1 is provided with a harvesting device 3 for harvesting the grain culms in the field, a threshing device 4 for threshing and sorting the grain culms on the left rear side of the harvesting device 3, and the right side of the harvesting device 3. A combine is provided with a control unit 5 for maneuvering the aircraft in the rear, and a dust exhaust fan 11 for removing dust and dirt in the vicinity of the harvesting device 3 and the control unit 5 on the upper right side of the harvesting device 3.

The invention according to claim 2 is provided with an engine room 6 at the lower part of the control unit 5, is located between the cutting device 3 and the threshing device 4 in the front-rear direction of the machine body, and has a grain stalk inherited from the cutting device 3. The feeder house 9 to be conveyed to the threshing device 4 is provided, the engine 60 is transmitted to the feeder house 9, and the feeder house 9 is provided with a rotary shaft 93 for transmitting power from the feeder house 9, and the cutting device 3 is provided. The cutting table 34 is provided with a cutting table 34, and the cutting table 34 is provided with a rotating shaft 35 supported behind the cutting table 34. The combine according to claim 1, which is transmitted to the fan 11.

According to the third aspect of the present invention, the rotary shaft 93 is provided with a rotary wheel 13 that rotates integrally with the rotary shaft 93, and the rotary shaft 35 is provided with a rotary wheel 14 and a rotary wheel 15 that rotate integrally with the rotary shaft 35. The rotary wheel 13 and the endless band 130 wound around the rotary wheel 14 are provided, the dust exhaust fan 11 is provided with a rotary shaft 110 that rotates integrally with the dust exhaust fan 11, and the rotary shaft 110 is equipped with a rotary shaft 110. The combine according to claim 2, further comprising a rotary wheel 111 that rotates integrally with the rotary shaft 110, the rotary wheel 15 and an endless band 150 wound around the rotary wheel 111, and transmitted to the dust exhaust fan 11. be.

According to the first aspect of the present invention, dust and dirt in the vicinity of the control unit 5 can be removed by the dust exhaust fan 11 which is the upper right side of the cutting device 3 and is provided in front of the control unit 5.

According to the second aspect of the present invention, by using the transmission from the engine 6 via the feeder house 9, the transmission can be driven by the engine power with a simple transmission structure, and the rotary shaft 35 is provided at the rear of the cutting table 34. By doing so, the transmission unit is transmitted to the dust exhaust fan 11 without interfering with other parts, and dust and dirt in the vicinity of the control unit 5 can be removed.

According to the third aspect of the present invention, the gear ratio can be adjusted by the rotating wheel and the endless band, and an appropriate air volume can be set to remove dust and dirt in the vicinity of the control unit 5.

Left side view of the combine. Plan view of the combine. Front view of the feeder house. Left side view of the feeder house. Sectional view from the top of the feeder house. Top view of the reaping device.

In the following description, the front-rear direction means the front-rear direction of the combine harvester. Furthermore, the front-rear direction is the traveling direction when the combine travels straight, the front in the traveling direction is referred to as the front, and the rear in the traveling direction is referred to as the rear. Further, the left-right direction means the left-right direction with respect to the front in the traveling direction. The right side with respect to the front in the direction of travel is called the right side, and the left side with respect to the front in the direction of travel is called the left side.

As shown in FIG. 1, the general-purpose combine is equipped with a traveling device consisting of a pair of left and right crawler 2 traveling on the soil surface on the lower side of the machine body 1, and a cutting device for harvesting culms in the field on the front side of the machine body 1. 3 is provided, a threshing device 4 for threshing and sorting harvested culms is provided on the rear left side of the harvesting device 3, and a control unit 5 on which the operator is boarded is provided on the rear right side of the harvesting device 3. ing.

An engine room 6 for incorporating an engine 60 is provided in the lower part of the control unit 5, and a grain tank 7 for storing threshed and sorted grains is provided behind the control unit 5, and is behind the grain tank 7. Is provided with a discharge cylinder 8 for discharging the grains stored in the grain tank 7 to the outside. The discharge cylinder 8 is composed of a vertical discharge cylinder 81 that communicates with the lower part of the grain tank 7 and extends in the vertical direction of the machine body 1, and a horizontal discharge cylinder 82 that communicates with the upper part of the vertical discharge cylinder 81 and extends in the front-rear direction of the machine body 1. Has been done.

The cutting device 3 includes a scraping device 31 that raises the grain culm in the field and conveys it to the rear of the scraping machine 1, a cutting blade device 32 that cuts the stock of the grain culm transported to the rear of the machine, and a rear of the machine 1. It is composed of a cutting auger device 33 that gathers the culms transported to the left side of the machine 1 and a cutting table 34 that protects the cutting auger device 33.

A rotating shaft 35 is provided behind the cutting table 34 of the cutting device 3 in parallel with the cutting table 34, and the rotating shaft 35 is supported by a stay or the like on the cutting table 34. The rotary shaft 35 supported behind the cutting table 34 may be in the upper part or the lower part behind the cutting table 34.

≪Overview of dust removal fan≫
The dust exhaust fan 11 is attached to the upper right end of the cutting device 3 in front of the control unit 5 by a stay or the like. The dust exhaust fan 11 is provided so as to be able to blow air in the left-right direction of the machine body 1. The dust exhaust fan 11 diffuses the dust that has been rolled up from the cutting device 3 and its vicinity and the dust that flows into the control unit 5.

≪Overview of feeder house≫
The feeder house 9 has a cylindrical shape with a square cross section having walls on the top, bottom, left and right, and has a bottom surface 9A, a right side surface 9B, a left side surface 9C, and an upper surface 9D. It is a device for transporting to 4, and is provided between the cutting device 3 and the threshing device 4 in the front-rear direction of the machine 1. There is an elevating cylinder 10 between the threshing device 4 and the feeder house 9 machine 1 in the front-rear direction. The elevating cylinder 10 can be moved up and down with the input shaft 91 as a fulcrum, and both the cutting device 3 and the feeder house 9 are moved up and down.

In the following description of the inside of the feeder house 9 and the side surface of the feeder house 9, the cutting device 3 side in the transport direction of the feeder house 9 is referred to as the cutting section side, and the threshing device 4 side in the transport direction of the feeder house 9 is referred to as the threshing section side. ..

The right side surface 9B of the feeder house 9 is provided with an input pulley 910 that rotates integrally with the input shaft 91 to which power from the engine 60 is transmitted, and the sprocket portion side in the feeder house 9 rotates integrally with the input shaft 91. A sprocket 92a and a sprocket 92b are provided.

Further, on the cutting portion side in the feeder house 9, an input shaft 91, an input pulley 910, a sprocket 92a, and a driven drum 94 that rotates together with the sprocket 92b are provided.

A pair of left and right chains 95a and 95b are wound around the sprocket 92a, the sprocket 92b, and the driven drum 94 so as to orbit, and the sprocket 92a, the sprocket 92b, and the driven drum 94 rotate together in response to the transmission of the input shaft 91. do.

The pair of left and right chains 95a and 95b are provided with a plurality of transport bars 950 for transporting the grain culms cut by the cutting blade device 32 to the threshing device 4.

A pair of left and right chains 95a and chains 95b wound around the sprocket 92a and the sprocket 92b are connected by a transport bar 950.

As the input shaft 91 rotates, the transport bar 950 circulates along the bottom surface 9A from the cutting device 3 side, and the grain culm is transported to the threshing section side by the transport bar 950.

The driven drum 94 is configured so that the position can be adjusted so that the tension of the chain 95 can be changed even when the tension is changed.

The left side surface 9C of the feeder house 9 is provided with a sprocket 96 that rotates together with the input shaft 91 and a sprocket 97 that exists on the cutting portion side.

The input shaft 91, the sprocket 92a, the sprocket 92b, and the sprocket 96 exist in a straight line so as to rotate integrally.

A chain 960 is wound around the sprocket 96 and the sprocket 97.

A tensioner 99, a sprocket 98 serving as a fulcrum of the tensioner 99, and a tension sprocket 992 of the tensioner 99 are provided between the front and rear of the sprocket 96 and the sprocket 97 in the transport direction.

The tensioner 99 is composed of a tension arm 991 and a tension sprocket 992 rotatably supported by the tip of the tension arm 991.

The sprocket 98 and the tension sprocket 992 are rotated by the chain 960 together with the sprocket 96 and the sprocket 97.

The tension arm 991 of the tensioner 99 rotates with the sprocket 98 as a fulcrum, but the tension arm 991 may have a fulcrum as a separate part.

The sprocket 98 is provided with a rotating shaft 93 that penetrates between the right side surface 9C and the left side surface 9B of the feeder house 9 in the left-right direction of the machine body 1 and rotates integrally with the sprocket 98, and the rotating shaft 93 is provided at the right end of the rotating shaft 93. A pulley 13 (rotary wheel 13 according to the claim) that rotates integrally with the pulley 13 is provided.

At the left end of the rotary shaft 35 supported behind the cutting table 34, a pulley 14 (rotary wheel 14 in the claim) that rotates integrally with the rotary shaft 35 is provided. A belt 130 (endless band 130 in the claims) is wound around the pulley 13 and the pulley 14.

A pulley 15 (rotary wheel 15 in the claim) that rotates integrally with the rotary shaft 35 is provided at the right end of the rotary shaft 35 supported behind the cutting table 34, and the rotary shaft 110 of the dust exhaust fan 11 has a rotary shaft. A pulley 111 (rotating wheel 111 according to the claim) that rotates integrally with the 110 is provided. A belt 150 (endless band 150 in the claims) is wound around the pulley 15 and the pulley 111.

≪Structure of idler and tensioner part≫
The combine according to the present invention employs the following tension structure in order to maintain a good transmission state.

The tension arm 991 is connected to the rear portion of the urging means 993 that can change the direction of the tension arm 991 and increase the winding angle of the chain 960. The tension arm 991 is operated by the urging means 993. The urging means 993 is a spring or the like.

One of the sprocket 98 and the tension sprocket 992 is provided on the outer peripheral side of the chain 960, and the other is provided on the inner peripheral side of the chain 960. The chain 960 is wound so that the sprocket 98 and the tension sprocket 992 are located adjacent to each other. Either the sprocket 98 or the tension sprocket 992 may be arranged on the cutting portion side or the threshing portion side.

The tension arm 991 applies a force in the direction in which the tension sprocket 992 and the chain 960 are in contact with each other. As a result, the chain 960 becomes tense as compared with the state in which the tension arm 991 is not operating. Therefore, the portion where the chain 960 is wound around the sprocket 98 and the tension sprocket 992 increases, and the winding angle becomes large.

More specifically, the tension arm 991 has a configuration as shown in the following example.

The tension arm 991 is pulled toward the cutting portion by the urging means 993. By being pulled toward the cutting portion side, the tension arm 991 can move counterclockwise (in FIG. 4) within a range on the upper surface D side of the feeder house from the sprocket 98. The tension arm 991 moves counterclockwise to move the tension sprocket 992 toward the cutting section.

By moving the tension sprocket 992 toward the cutting portion side, the chain 960 is pulled toward the cutting portion side as compared with the state where the tension arm 991 is not operating, and the chain 960 becomes in a tense state. Therefore, the portion where the chain 960 is wound around the sprocket 98 and the tension sprocket 992 increases, and the winding angle becomes large. By increasing the winding angle, transmission is stable.

The following embodiment may be used in a configuration in which the dust exhaust fan 11 is rotated by utilizing the transmission of the rotating shaft 35 supported behind the cutting table 34.

≪Example of transmission using input axis≫
Without using the sprocket 98, a pulley 911 separate from the pulley 910 is provided on the input shaft 91 on the outside of the feeder house 9, and dust is discharged by winding the belt 130 around the pulley 911 and the pulley 14 that rotate integrally with the input shaft. It may be configured to be transmitted to the fan 11.

≪Example of transmission using a driving wheel≫
A rotary shaft 970 is provided so as to penetrate the right side surface 9B of the feeder house 9 from the driven wheel 97 without using the sprocket 98, and the rotation is transmitted from the rotary shaft 970 to the rotary shaft 35 to rotate the dust exhaust fan 11. good.

In the configuration using the transmission of the driven wheel 97, the drum drive shaft 971 using the transmission branched from the driven wheel 97 may be transmitted to the rotating shaft 35 to rotate the dust exhaust fan 11.

In the configuration using the transmission of the driven wheel 97, the cutting blade drive shaft 972 using the transmission branched from the driven wheel 97 may be transmitted to the rotating shaft 35 to rotate the dust exhaust fan 11.

≪Example of transmission using intermediate support sprocket≫
Without using the sprocket 98, the intermediate support sprocket 901 or the intermediate support sprocket 902, which is an idler sprocket, is provided with a rotation shaft 903, and the rotation shaft 903 that rotates integrally with the intermediate support sprocket 901 or the intermediate support sprocket 902 is provided in the left-right direction of the machine body 1. The feeder house 9 may be penetrated and transmitted to the rotating shaft 35 to rotate the dust exhaust fan 11.

In a configuration in which the feeder house 9 has an intermediate support sprocket 901 and an intermediate support sprocket 902, either the intermediate support sprocket 901 or the intermediate support sprocket 902 may be used as the tensioner. Any part of the tensioner may be used as the fulcrum.

Although not shown, in a configuration in which the idler sprocket is located at another position of the feeder house 9, the idler sprocket may be provided with a rotary shaft 904, and the rotary shaft 904 may be transmitted to the dust exhaust fan 11.

As a form in which the fan 11 is provided in front of the control unit 5, the following can be considered.

≪Example of transmission using engine rotation and HST≫
Instead of using the sprocket 98, a transmission shaft 601 that transmits from the engine 60 in the engine room 6 may be provided, and the transmission may be performed to the dust exhaust fan 11.

Instead of using the sprocket 98, the HST drive shaft 61 in the engine room 6 may be transmitted to the dust exhaust fan 11.

In the configuration in which the transmission is taken out from the engine room 6, the transmission may be taken out from either the left or right side of the control unit 5.

In the configuration in which the transmission is taken out from the engine room 6, it is desirable that the dust exhaust fan 11 is attached to the control unit 5 so as to be supported by a stay or the like.

In the transmission method using the engine 60 and the HST drive shaft 61, the dust exhaust fan 11 is provided in front of the control unit 5, and may be arranged on the right side or the left side in front of the control unit 5. The configuration of the transmission unit may be appropriately changed depending on the arrangement of the dust exhaust fan 11.

≪Others≫
The left side surface 9C of the feeder house 9 is provided with an exterior cover 12 that covers the sprocket 98, tensioner 99, chain 95, and the like.

In addition to the dust exhaust fan 11 in front of the control unit 5, an additional fan 16 may be provided between the control unit 5 and the right side surface 9B of the feeder house 9. The dust exhaust fan 11 diffuses or sucks the dust in the vicinity of the cutting device 3 and the control unit 5, and the additional fan 16 diffuses or sucks the air sucked by the dust removal fan 11 and the dust in the vicinity of the control unit 5 and the vicinity of the engine room 6. The hot air can be diffused to the left side of the aircraft 1.

The transmission to the additional fan 16 may be configured according to the dust exhaust fan 11 or may be configured to use another means.

3 Mowing device 4 Grain removal device 5 Control unit 6 Engine room 60 Engine 9 Feeder house 34 Mowing table 35 Rotating shaft 91 Input shaft 93 Rotating shaft 96 Sprocket 97 Sprocket 98 Sprocket 99 Tensioner 901 Intermediate support sprocket 902 Intermediate support sprocket 960 Chain 991 Tension arm 992 Tension sprocket 11 Dust removal fan 111 Rotating wheel (pulley)
13 Rotating wheel (pulley)
130 Endless belt (belt)
14 Rotating wheel (pulley)
15 Rotating wheel (pulley)
150 Endless belt (belt)

Claims (3)

Equipped with a harvesting device 3 for harvesting culms in the field,
A threshing device 4 for threshing and sorting grain culms is provided on the left rear side of the cutting device 3.
A control unit 5 for controlling the machine body is provided on the right rear side of the cutting device 3.
A combine having a dust exhaust fan 11 for removing dust and dirt in the vicinity of the cutting device 3 and the control unit 5 on the upper right side of the cutting device 3. An engine 60 is provided at the lower part of the control unit 5.
A feeder house 9 is provided between the cutting device 3 and the threshing device 4 in the front-rear direction of the machine body and transports the grain culm inherited from the cutting device 3 to the threshing device 4.
The feeder house 9 is provided with a rotation shaft 93 that transmits power from the engine 60 to the feeder house 9, and the power is transmitted from the feeder house 9.
The cutting device 3 is provided with a cutting table 34.
The cutting table 34 is provided with a rotating shaft 35 supported behind the cutting table 34.
The combine according to claim 1, wherein the combine is transmitted from the rotary shaft 93 to the rotary shaft 35 and is transmitted from the rotary shaft 35 to the dust exhaust fan 11. The rotary shaft 93 is provided with a rotary wheel 13 that rotates integrally with the rotary shaft 93.
The rotary shaft 35 includes a rotary wheel 14 and a rotary wheel 15 that rotate integrally with the rotary shaft 35.
The rotary wheel 13 and the endless band 130 wound around the rotary wheel 14 are provided.
The dust exhaust fan 11 is provided with a rotating shaft 110 that rotates integrally with the dust exhaust fan 11.
The rotating shaft 110 is provided with a rotating wheel 111 that rotates integrally with the rotating shaft 110.
The rotary wheel 15 and the endless band 150 wound around the rotary wheel 111 are provided.
The combine according to claim 2, which is transmitted to the dust exhaust fan 11.

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