JP2008271871A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve maintainability and handleability of a combine harvester. <P>SOLUTION: The combine harvester is composed, by freely openably installing an engine cover (25) with the shaft center (26) in the front and the rear directions or the vertical directions of a machine body (1a) as the center, providing an operating clutch lever (22) on the right side or on the left side of a maneuvering seat (23) in the engine cover (25), arranging a connecting means (28) from the operation clutch lever (22) to an operation clutch (27) on the side of the machine body (1a) near the shaft center (26) and installing an outside air suction chamber (29) in the outer lateral part of the engine cover (25). A suction port (31a) of an air cleaner (30), fixed on the side of the machine body (1a) is made to communicate with the outside air suction chamber (29) in a closed state of the engine cover (25), and the suction port (31a) of the air cleaner (30) is separated from the outside air suction chamber (29) in an opened state of the engine cover (25). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine.

As shown in Japanese Patent Application Laid-Open No. 59-183617, an operation lever is provided rotatably at a side opening of an engine room, and a guide groove having an engagement opening of the operation lever is provided at one end edge. A structure in which the lever guide is provided on the engine cover side that closes the opening so as to be freely opened and closed is known.
JP 59-183617 A

  The engine cover and the lever guide provided on the upper side of the engine cover have a divided structure. The lever guide is attached to the engine cover, and the engine cover is attached to the main unit. In addition, the operation lever is directly attached to the main body, which makes it difficult to check or disassemble and assemble the operation lever. It is.

In order to solve the above problems, the present invention takes the following technical means.
That is, in the first aspect of the present invention, the engine (24) is provided on the upper part of the traveling chassis (2), and the engine cover (25) surrounding the engine (24) is arranged in the longitudinal direction or the vertical direction of the airframe (1a). Centering on the shaft center (26), it is openable and closable, a cockpit (23) is attached to the upper part of the engine cover (25), and a work clutch lever is provided on the right or left side of the cockpit (23) in the engine cover (25). (22) is provided, and a connecting means (28) from the work clutch lever (22) to the work clutch (27) on the machine body (1a) side is disposed in the vicinity of the shaft center (26), and the engine cover (25 ) Is provided with an outside air suction chamber (29), and when the engine cover (25) is closed, the air inlet (31a) of the air cleaner (30) fixed to the airframe (1a) side and the outside air suction chamber ( 29) In which the intake port (31a) of the air cleaner (30) and the outside air intake chamber (29) are separated when the engine cover (25) is open. It is.

  In the second aspect of the invention, when the work clutch lever (22) is operated to the transmission cut-off side, the work clutch lever (22) is inclined rearward to the side portion on the front side of the cockpit (23). When the work clutch lever (22) is operated to the transmission connection side by retracting from the formed entrance / exit side, the work clutch lever (22) is inclined forward and protrudes toward the entrance / exit side. The combine according to claim 1, which is a feature.

  According to the first aspect of the present invention, by opening and closing the engine cover 25, the work clutch lever 22 is also integrally opened, facilitating maintenance. By providing the working clutch lever 22 on the engine cover 25 having high rigidity, it is not necessary to form a special clutch frame or the like, and the combine can be provided at a low cost.

  In the second aspect of the invention, in addition to the effect of the first aspect of the invention, when the work clutch lever 22 is operated to the transmission cut-off side, the work clutch lever 22 is tilted rearward to control the cockpit. 23 Since it retracts from the entrance formed in the side part of the front side, an operator can get on and off easily and the handleability of a combine can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A traveling device 3 is provided below the traveling chassis 2 of the combine 1. The harvested cereals harvested by the harvesting device 4 provided on the front side of the traveling chassis 2 are supplied, and the harvested cereals are threshed and sorted. The threshing device 5 to be mounted is placed on the upper side of the traveling chassis 2, the operating device 21 is provided at the front right side of the threshing device 5, and the engine 24 is provided on the upper portion of the traveling chassis 2. An engine cover 25 that surrounds the engine 24 is provided so as to be openable and closable about a longitudinal axis 26 of the airframe 1a or a vertical axis 26, and the cockpit 23 is provided above the engine cover 25. A work clutch lever 22 of the operating device 21 is provided on the right side or the left side of the cockpit 23 in the engine cover 25, and the connecting means 28 from the work clutch lever 22 to the work clutch 27 on the airframe 1a side is connected to the shaft center. 26, and an outside air suction chamber 29 is provided outside the engine cover 25. When the engine cover 25 is in the closed state, the intake pipe 31 of the air cleaner 30 fixed to the airframe 1a side The opening 31a and the outside air suction chamber 29 are provided so as to communicate with each other. In addition, when the engine cover 25 is in an open state, the intake port 31a of the air cleaner 30 and the outside air suction chamber 29 are separated. The configurations of the air cleaner 30, the engine cover 25, the engine 24, and the like are mainly illustrated and described.

  As shown in FIG. 5, a traveling device 3 in which a pair of left and right traveling crawlers 3 a traveling on the soil surface is stretched is disposed below the traveling chassis 2 of the combine 1. A threshing device 5 is placed. The napped cereals are harvested by the reaping device 4 at the front part of the traveling chassis 2 and transferred to the upper rear part, and the threshing is carried out while being nipped and transferred by the feed chain 6a of the threshing device 5 and the clamping rod 6b. The threshed and selected grain is supplied to the grain storage tank 7 disposed on the left side of the threshing device 5 and temporarily stored.

  As shown in FIG. 5, a narrow guide 8 and a weeding body 9 for separating the napped mash, a pulling device 10 for raising the napped mash, and a raised mash as shown in FIG. Each scraping device 12 of the culm scraping transfer device 11 to be scraped, a cutting blade device 13 for cutting the scraped culm, and a feed chain 6a of the threshing device 5 by nipping and transporting the trimmed culm In addition, a cutting device 4 is provided that includes the root and tip transfer devices 15 and 16 of the cereal scraping transfer device 11 to be delivered to the clamping rod 6b. The mowing device 4 is raised and lowered with respect to the soil surface by a telescopic cylinder 17 that is hydraulically driven.

  A support pipe rod 19 provided at the upper end portion of the support rod 18 that is inclined from the front lower portion to the rear upper portion of the cutting device 4 is rotatably supported by a support device 20 provided on the upper side surface of the traveling chassis 2. When the telescopic cylinder 17 is operated, the reaping device 4 is rotated up and down together with the support rod 18.

  In the culm transfer path formed by the culm scraping transfer device 14 of the reaping device 4, the presence or absence of supply of the cereal to the threshing device 5 is made by contacting the culm that is harvested and transferred. A cereal sensor 4a for detection is provided.

  As shown in FIG. 5, an operation device 21 for starting and stopping the combine 1 and adjusting each part and the like and a cockpit 23 are provided at the front portion on the grain storage tank 7 side. An engine 24 is placed below the seat 23. An air cleaner 30 is provided on the rear side of the cockpit 23.

  As shown in FIGS. 1 to 4, an engine 24 is mounted on the upper surface of the traveling chassis 2, and an engine cover 25 is provided so as to surround the engine 24. The engine cover 25 is attached to the body 1 a. The support shaft 26a is provided so as to be openable and closable around the axis 26 in the front-rear direction or the vertical direction. A cockpit 23 is provided on the upper side surface of the engine cover 25, and a work clutch for operating the combine 1 at the start, during and at the end of the work on the right or left side of the cockpit 23 in the engine cover 25. A lever 22 is provided, and the working clutch lever 22 is configured to be operated when starting and stopping the threshing device 5, the reaping device 4, the traveling device 3, and the like.

  The wire 28a of the connecting means 28 from the work clutch lever 22 to the work clutch 27 provided in the mission case 32, for example, on the machine body 1a side is routed through the vicinity of the support shaft 26a of the shaft center 26. An outside air suction chamber 29 is provided on the outer side of the engine cover 25, and when the engine cover 25 is operated in a closed state, an intake port 31a of an intake pipe 31 provided in an air cleaner 30 provided fixed to the airframe 1a side. Then, the outside air suction chamber 29 is connected and communicated, and the outside air is sucked into the air cleaner 30. Further, when the engine cover 25 is operated to the open state, the intake port 31a of the intake pipe 31 of the air cleaner 30 and the outside air intake chamber 29 are separated.

  When the engine cover 25 is operated in the closed state, the intake port 31a of the intake pipe 31 of the air cleaner 30 fixed to the airframe 1a and the outside air suction chamber 29 are communicated with each other, and outside air is sucked into the air cleaner 30. Is done. When the engine cover 25 is operated to open, the intake port 31a of the air cleaner 30 and the outside air suction chamber 29 are separated, so that the engine clutch 25 is opened and closed to open a work clutch lever. 22 is opened, and maintenance becomes easy. By providing the working clutch lever 22 on the engine cover 25 having high rigidity, it is not necessary to form a special clutch frame or the like, and the construction of the working clutch lever 22 can be manufactured at low cost.

  As shown in FIG. 2, when the operation clutch lever 22 is operated in the “OFF” state, the operation clutch lever 22 is tilted toward the rear portion, and when operated in the “ON” state, It is the structure which rotates to the front inclination state toward the boarding base 23a part which gets into the seat 23. FIG. Thus, when the driver gets on and off the combine 1, the cutting clutch lever 22a and the threshing clutch lever 22b of the clutch clutch 22 are tilted toward the rear portion in the “cut” state. Yes, when the driver gets on and off the combine 1, there is nothing that gets in the way and he can get on and off easily.

  The engine cover 25, an outside air suction chamber 29 provided on the outer side of the engine cover 25, a cutting work clutch lever 22a of the work clutch lever 22 provided pivotally on the upper portion of the outside air suction chamber 29, and The threshing operation clutch lever 22b and the like are provided so as to be pivotally supported to the right outer side as shown in FIG. ing.

  As a result, when the engine cover 25 is operated to the right outer side, the harvesting clutch lever 22a, the threshing clutch lever 22b, etc. of the working clutch lever 22 are pivotally moved to positions far away from the body 1a. As a result, maintenance of the levers 22a and 22b is facilitated. Further, the wire 28a, which is the connecting means 28 provided on each of the levers 22a and 22b, does not expand and contract when the engine cover 25 is opened and closed, and does not come into contact with an obstacle.

  As shown in FIG. 1 and FIG. 2, an armrest 29 a having a substantially square cross-sectional shape on which the operator handles is provided on the upper right side of the outside air suction chamber 29. A predetermined interval is provided in the part, and it is formed to have substantially the same shape as the upper outer shape part of the outside air suction chamber 29. An intake net 29b is stretched on the outer surface of the outside air suction chamber 29, and the clutch levers 22a and 22b are pivotally supported on the clutch lever shaft 22c between the armrest 29a and the cockpit 23. ing.

  As a result, the armrest 29a serves as a guide for the clutch levers 22a and 22b when getting in and out of the cockpit 23, and the clutch levers 22a and 22b do not become an obstacle.

  An engine cover 25 is provided in the upper part of the engine storage chamber 24a in which the engine 24 is stored, and the upper part of the outside air suction chamber 29 on the right outer side of the engine cover 25 is as shown in FIGS. A clutch lever shaft 22c is provided, and the clutch lever shaft 22c is provided with pivoting / threshing operation clutch levers 22a, 22b of the working clutch lever 22, and an armrest is provided near the fulcrum of the cutting / threshing clutch levers 22a, 22b. 29a is provided.

Thereby, by providing the armrest 29a in the upper part of the outside air suction chamber 29, the strength of the pivoting fulcrum portions of the mowing / threshing clutch levers 22a, 22b can be increased.
As shown in FIG. 3, the operation device 21 is provided with a front operation panel 21a on the front right side, and an engine cover 25 is provided on the rear left side of the front operation panel 21a and the boarding base 23a. A left rear clutch panel 25 a is connected to the right side of the cover 25. The left rear clutch panel 25a is provided with cutting and threshing operation clutch levers 22a and 22b of the operation clutch lever 22 and an armrest 29a.

The front operation panel 21a is provided with a main transmission lever 21b, a sub transmission lever 21c, and a throttle lever 21d that are pivotally supported and provided with respective operation grooves.
Thus, when the engine cover 25 is opened, the left rear clutch panel 25a is also opened at the same time, thereby facilitating maintenance of the output transmission system of the engine 24.

  As shown in FIGS. 6 to 8, an armrest 29a is provided with a bolt, a nut and the like over the upper side surface and the front side surface of the outside air suction chamber 29, and the arm clutch 29 is provided on the armrest 29a. The cutting and threshing clutch levers 22a and 22b are pivotally supported by a clutch lever shaft 22c. The armrest 29a is provided with a space portion 29c, and a grip portion capable of gripping 360 degrees is provided above the armrest 29a.

  Thereby, by attaching the work clutch lever 22 to the armrest 29a, the work clutch lever 22 is also removed at the same time by removing the armrest 29a, thereby improving the assemblability. Further, by installing the arm rest 29a other than the operation part of the clutch lever 22, the dust resistance is improved and the safety is improved. The airframe 1a can be easily raised and lowered.

  As shown in FIGS. 9 to 11, on the rear side of the engine cover 25 that covers the engine 24 and to which the cockpit 23 is integrally attached, as shown in FIGS. 9 to 11, the vertical support shaft 26b of the vertical axis 26 is the center of rotation. An engine cover 25 that can be opened and closed in the front-rear direction of the machine body 1a is provided, and the cutting and threshing clutch levers 22a and 22b of the work clutch lever 22 are rotatable on the right or left side of the cockpit 23 of the engine cover 25. It is provided to be pivotally supported. When the engine cover 25 is opened, the output portion 24b of the engine 24 is in an open state as shown in FIG.

  When the mowing / threshing operation clutch levers 22a and 22b of the operation clutch lever 22 are provided on the left side of the cockpit 23, as shown in FIG. 12 and FIG. These support metals 35, 35 pivotally support the support pipe 36a, provide a cutting clutch lever 22a at one end of the support pipe 36a, and provide a support plate 36b at the other end. A wire 28a is connected to the support plate 36b.

  A support shaft 37a is inserted into and supported by the support pipe 36a. A threshing clutch lever 22b is provided at one end of the support shaft 37a, and a support plate 37b is provided at the other end. The wire 28a is connected to 37b.

  Thereby, by opening the engine cover 25, the mowing / threshing clutch levers 22a and 22b are opened, and the maintenance becomes easy. Further, by providing the clutch levers 22a and 22b on the rigid engine cover 25, it is not necessary to form a special clutch frame, and the construction of the clutch levers 22a and 22b can be manufactured at low cost. Further, when it is provided on the right side, it becomes a right-hand operation, and the operability is improved. When it is provided on the left side, it is easy to get in and out of the cockpit 23. Maintenance of the output part 24b of the engine 24 is facilitated.

  A potentiometer type vehicle speed sensor 32b for detecting the traveling vehicle speed is provided in the transmission path of the transmission mechanism 32a in the traveling mission case 32 mounted on the front end of the traveling vehicle base 2. ing.

  On the rear side of the grain storage tank 7 that discharges the stored grains stored in the grain storage tank 7 to the outside of the machine, as shown in FIG. The upper end portion of the discharge support cylinder 33 is provided with a discharge spiral 34a that discharges the grain to the outside of the combine 1 in the longitudinal direction of the combine 1. The discharge auger 34 is disposed in the front-rear direction so as to be telescopic, pivotable up and down, and pivotable left and right.

Front view of outside air suction chamber and engine storage chamber Side view of the right side of the front part of the combine Top view of combine front Front view when opening the outside air suction chamber Combine left side side view Left side view of working clutch lever and armrest Front view of working clutch lever and armrest Left side perspective view of working clutch lever and armrest Top view of combine front Front view when opening the outside air suction chamber Top view of combine front Front view of outside air suction chamber and engine storage chamber Side view of the right side of the front part of the combine

Explanation of symbols

1a Airframe 2 Traveling chassis 22 Work clutch lever 23 Pilot seat 24 Engine 25 Engine cover 26 Axle
27 Working clutch 29 Outside air suction chamber 30 Air cleaner 31a Intake port

Claims (2)

  An engine (24) is provided on the upper part of the traveling chassis (2), and an engine cover (25) surrounding the engine (24) is provided so as to be openable and closable around the longitudinal axis (26) of the airframe (1a). The pilot seat (23) is attached to the upper part of the engine cover (25), and a work clutch lever (22) is provided on the right or left side of the cockpit (23) in the engine cover (25). ) To the work clutch (27) on the airframe (1a) side is disposed in the vicinity of the shaft center (26), and an outside air suction chamber (29) is provided outside the engine cover (25). When the engine cover (25) is closed, the air inlet (31a) of the air cleaner (30) fixed to the airframe (1a) and the outside air suction chamber (29) communicate with each other, and the engine cover (25 ) Open the state, combine the inlet of the air cleaner (30) (31a) and the outside air intake chamber and (29) is characterized by being configured to be separated.   When the work clutch lever (22) is operated to the transmission cut-off side, the work clutch lever (22) is inclined rearward and retracted from the entrance / exit side formed on the side portion on the front side of the cockpit (23), The combine according to claim 1, wherein when the work clutch lever (22) is operated to the transmission connection side, the work clutch lever (22) is inclined forward and protrudes toward the entrance / exit. .

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