JP3626168B2 - Combine - Google Patents

Description

  The present invention relates to a combine for threshing cereals harvested by a harvesting unit, for example.

  Conventionally, when the side of the threshing part is opened to perform maintenance and inspection of the handling chamber and the barrel or exchange of the receiving net, there is a technique for moving the side cover around the fulcrum shaft to open the side of the threshing part. . (For example, see Patent Document 1)

Japanese Patent Laid-Open No. 61-12213

  The prior art saves the troublesome work of removing the side cover, but since the side cover is horizontally laid down on the outer side of the threshing side to open it, maintenance inspection of the barrel or replacement of the receiving net, etc. It is necessary to carry out from the space above the side cover, and there is a need for the operator to work close to the side cover inside the threshing part, and to lift the side cover at the end of the work and return it to the original position In addition, a fixing means for preventing the feed chain from falling under its own weight is necessary, and there are problems such as simplification of handling operation and easy improvement of workability such as maintenance. Therefore, it is possible to replace the receiving network by removing the side cover or the feed chain, but there is a problem that the receiving network cannot be easily replaced.

Therefore, the present invention provides the feed chain on the side of the threshing portion so as to be openable to the side of the threshing portion, and is provided on the side of the threshing portion so as to be rotatable about the rotation fulcrum shaft. The present invention provides a combine characterized in that a transmission connecting portion that is detachably connected to a drive shaft is provided on a side away from the rotation fulcrum shaft .

In the present invention, the feed chain (5) is provided so as to be openable to the side of the threshing portion (4), and the feed chain (5) is rotatable about the rotation fulcrum shaft (33) so as to be side of the threshing portion (4). And a transmission connection portion (55) that is detachably connected to a drive shaft (52) that is a drive portion on the machine side is provided on the side away from the rotation fulcrum shaft (33). Thus, there is no burden of lifting and lowering the feed chain (5), and the operation of separating or joining the feed chain (5) to the side surface of the threshing part (4) can be performed more easily than before. As a result, there is no hassle to replace the crimp net (37) through the feed chain (5) as in the past, and as a result, the behavior of the worker at the threshing part (4) side part is regulated by the feed chain (5). Can be eliminated.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory side view of the feed chain section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view thereof. In the figure, (1) is a track frame on which a traveling crawler (2) is installed, (3) Is a machine base installed on the track frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side and a handling cylinder (6) and a processing cylinder (7) are incorporated, (8 ) Is a cutting part provided with a cutting blade and a grain feeder, etc., (9) is a rejection processing part that faces the end of the rejection chain (10), and (11) is a driver's seat (12) and a driving operation part (13). (14) is an engine unit that is disposed in the right rear portion of the machine base (3) and has an engine (15), and (16) is disposed in front of the engine unit (14) and is a threshing unit. The grain tank for storing the grain from (4), (17) takes the grain in the grain tank (16) outside. It is to discharge auger, are configured to perform a continuously reaping-threshing work.

  As shown in FIGS. 4 to 6, the upper wall cover (18) of the threshing part (4) is provided so as to be freely opened upward, and the feed chain (5) is provided so as to be freely opened on the left side of the threshing part (4). The support (19) of the cover (18) is connected to and supported by the ridge (21) via the frame (20), and the base end of the cover (18) is fixed to the threshing main body side fixing bracket (22). Is supported through a fulcrum shaft (23) so as to be freely opened and closed. In addition, (24) is a cover for covering the outside of the cover (21), and (25) is a lock member for sealing and holding the cover (18).

  In addition, a drive sprocket (26) which is a front rotating body is provided at the front end of the lower chain rail (27), and an upper portion which is a winding prevention plate fixed to the rear ends of the lower and upper chain rails (27) and (28). The pivot plate (29) is provided with a driven sprocket (30) as a rear rotating body, and a feed chain (5) is stretched on each sprocket (26) (30). The pivot plate (29), The upper and lower horizontal pivot fulcrum shafts (33) and (34) are fixed to the lower pivot plate (32) connected and fixed to the lower portion of the pivot plate (29) via the support column (31), respectively. The feed chain (5) is supported on the side fixing brackets (35) and (36) through the fulcrum shafts (33) and (34) so as to be openable to the side.

  Furthermore, a handle cylinder side cover (38) is provided on the chain rails (27) and (28). The handle rail side cover (38) presses the lower end to the outer end (37a) of the crimp net (37) below the handle cylinder (6). The unit is integrally connected via mounting frames (39) and (40), and the tension roller (41) and sprocket (42) of the feed chain (5) are connected to the chain rail (27) via a guide plate (42a) and the like. When the feed chain (5) is opened sideways, the side cover (38), the tension roller (41), and the sprocket (42) are also integrally rotated to the side.

  When the feed chain (5) is closed, the locking pin (43) of the front plate (38a) of the side cover (38) is engaged with the front plate (44) through the lock plate (45). The lock plate (45) is held in position by the front plate (44) via the support shaft (46), stopper pin (47) and spring (48), and the side cover (38) is closed. The pin (43) abuts against a guide lever (49) fixed to the lock plate (45), and pushes down the lock plate (45) against the spring (48) to lock the lock plate (45). The pin (43) is engaged with the pin engaging groove (50) of the side, and the side cover (38) and the feed chain (5) are fixedly held in the closed position.

  The drive case (51) fixed to the threshing part (4) main body side is provided with a drive shaft (52) for driving the feed chain (5), and the drive shaft (52) is connected to the input shaft ( 53) is connected to the sprocket shaft (55) of the drive sprocket (26) via a gear (54), and the drive shaft (52) is connected and connected to the sprocket shaft (55) via a limit clutch (56). By adopting a drive transmission system using clutch claws of the clutch (56), the number of parts is reduced and durability is improved as compared with the conventional pin coupling system. A feed chain (5) for conveying threshing cereals is provided. The threshing portion (4) is provided on the side of the threshing portion (4) so as to be openable, and the feed chain (5) is provided on the side portion of the threshing portion (4) so as to be rotatable about the horizontal rotation fulcrum shaft (33) (34). In the drive part of this machine side That are provided sprocket axis is transmission connection portion for detachably connecting (55) to said the far side horizontal rotation fulcrum shaft (33) (34) to the drive shaft (52).

  Further, the fulcrum shaft (33) (34) supporting the rear end side of the feed chain (5) is located at a rear position of the dimension (t) from the sprocket shaft (57) of the driven sprocket (30). 5) It is arranged closer to the threshing body side than the threshing body side, and when the feed chain (5) is opened, the pivot plate (29) (32) which is the rearmost end of the chain (5) enters the threshing body side. The feed chain (5) is configured to prevent interference between the threshing body and the feed chain (5) while minimizing the allowance and suppressing the overall width of the machine body within a certain dimension. In the structure in which the threshing part (4) is provided open to the side, the horizontal rotation fulcrum shaft (33) (34) of the feed chain (5) that opens to the threshing part (4) side is used as the feed chain (5). The sprocket supporting the end of the It is provided on the threshing body nearer the feed chain (5) in addition the end portion outer side position than the sprocket axis (57) of 0).

  As mentioned above, in the combine provided with the threshing part (4) which carries out the threshing treatment while holding and transporting the cereal by the feed chain (5) and the straw (21) which are the supply and transport chains, the threshing part ( The upper side wall cover (18), which is the upper cover of 4), and the ridge (21) are configured to be integrally movable upward, and the feed chain (5) is placed in the threshing section (4). Together with the side cover (38) that covers the side of the handling cylinder (6) to be installed, it can be moved from the side of the threshing part (4), and the feed chain (38) can be removed without removing the side cover (38). 5) is moved from the side of the threshing section (4) to open the side surface of the threshing section (4), and the efficiency of the maintenance work is improved, and by the feed chain (5) and the basket (21), Threshing with threshing while holding cereals In the combine provided with (4), the upper wall cover (18) of the threshing part (4) and the basket (21) are configured so as to be integrally movable upward, and the feed chain (5) With the side cover (38) that covers the side of the handling cylinder (6) that is installed in the threshing part (4), the fulcrum shaft (33) that is the vertical axis is configured to be rotatable outward, Even without removing the side cover (38), the feed chain (5) is rotated outward to open the side surface of the threshing part (4), thereby improving the efficiency of the maintenance work.

  Moreover, while installing a reaping part (8) and a threshing part (4), and simultaneously reaping and threshing the cereal, at one side of the handling cylinder (6) installed in the threshing part (4) In the combine in which the side surface on which the feed chain (5) is stretched is opened and closed by the side cover (38), the side cover (38) can be rotated in the lateral direction around the fulcrum shaft (33) (34). A working space can be formed between the side cover (38) and the side surface where the feed chain (5) is stretched at one side of the crimping net (37), which is the lower receiving net of the handling cylinder (6). The side cover (38) is rotated laterally to open the threshing part (4) side surface, and there is no burden of lowering the side cover (38) as in the prior art, The operation of separating or joining the side cover (38) to the threshing part (4) side is lighter than before. And there is no hassle to replace the crimp net (37) over the side cover (38) as in the prior art, and the behavior of the worker on the threshing part (4) side part is made by the side cover (38). Eliminating the problems that are restricted, the operator can easily perform operations such as attaching and detaching the crimp net (37) on the side of the threshing portion (4), and simplify the handling operation.

  Further, the feed chain (5) stretched in the front-rear direction is attached to the side surface of the threshing part (4) via a movable fulcrum shaft (33), and the feed chain (5) side is engaged / disengaged from the side surface of the threshing part (4). It is connected by a lock plate (45), which is a possible hook, and a guide lever (49), which is an operation lever, is connected to the lock plate (45), in the direction of rotation around the fulcrum shaft (33) of the feed chain (5). The lock plate (45) and the pin (43) to be engaged and disengaged by operating the guide lever (49) are arranged opposite to the threshing part (4) side and the feed chain (5) side, and the top of the threshing part (4) The side cover (38) is configured such that the side wall cover (18) and the flange (21) are integrally movable upward, and the feed chain (5) covers the side of the handling cylinder (6). Along with the fulcrum shaft (33), it rotates outward. Make up to capacity. And since the feed chain (5) is rotated in the horizontal direction and the threshing part (4) side surface is greatly opened, there is no burden of lifting and lowering the feed chain (5) as in the prior art, and the threshing part (4) The operation of separating or joining the feed chain (5) to the side surface is performed lighter than before, and there is no hassle to replace the crimp net (37) through the feed chain (5) as in the past, The trouble that the behavior of the worker on the threshing part (4) side part is regulated by the feed chain (5) is eliminated, and the rotation operation of the feed chain (5) can be performed only by the engagement / disengagement of the lock plate (45). The operator can easily remove and rotate the feed chain (5) with the threshing part (4) side surface and rotate it easily by the operator, simplifying the handling operation, and the lock plate (45) and pin ( 3) is arranged to face the threshing section (4) and the feed chain (5), so that the lock feed structure of the rotatable feed chain (5) can be easily made by the pin (43) and the lock plate (45). The feed chain (5) side is firmly supported by the fulcrum shafts (33) and (34), the pin (43) and the lock plate (45), and vibration noise and deformation damage are caused on the feed chain (5) side. Reduction and improvement of the engagement function.

  Further, in the combine in which the feed chain (5) is stretched in the front-rear direction on one side of the threshing part (4), the feed chain (5) is provided movably around the fulcrum shafts (33) and (34), and the fulcrum shaft (33) A chain cover (27), which is a frame to be connected to (34), supports a drive sprocket (26) of the feed chain (5), and a side cover (38) provided on one side of the handling cylinder (6). ) Is attached to the fulcrum shaft (33) via the chain rail (27), and the upper wall cover (18) of the threshing part (4) and the ridge (21) are integrally movable upward. At the same time, the rear part of the feed chain (5) is supported by a support (31), which is a support member standing on the rear side of the threshing part (4), via the fulcrum shaft (33). Meanwhile, the front part of the feed chain (5) It is configured to be engaged disengaged via a locking device guide lever threshing section (4) side (49). And there is no burden of detaching the feed chain (5) and the side cover (38) as in the prior art, and the feed chain (5) and the side cover (38) are separated from or joined to the side surface of the threshing part (4). The operation is lighter than before, and there is no need to replace the crimp net (37) through the feed chain (5) and the side cover (38) as in the past, and the work on the threshing part (4) side part The drive sprocket (26) is attached to the chain rails (27) and (28) to be connected to the fulcrum shafts (33) and (34). Therefore, it is possible to rotate the feed chain (5) without detaching the feed chain (5) and the drive sprocket (26) and to rotate the feed chain (5). While maintaining the mounting accuracy of the drive sprocket (26) with respect to the top and the feed chain (5) easily, the working space for replacing the crimp net (37) is easily secured by rotating the side cover (38), In addition, the fulcrum shafts (33) and (34) and the drive sprocket (26) are arranged in front of and behind the side cover (38) to simplify the mounting structure such as the transmission mechanism and the fulcrum shafts (33) and (34) and to improve the support strength. Etc.

  Further, the fixed brackets (35) and (36), which are bearing members to be fixed to the outer surface of the threshing part (4), are projected to the outside of the machine, and the horizontal rotation fulcrum shafts (33) and (34) are fixed to the fixed bracket (35) ( 36) to be detachably connected in the vertical direction to improve the detachability of the feed chain and the barrel side cover (38), and to fix the fixing bracket (35) (36) on the side surface of the threshing part (4). It is made to project horizontally to secure a separation distance between the feed chain (5) in the open position and the side surface of the threshing section (4), and the horizontal pivot fulcrum shaft (33) by the horizontal projection of the fixing brackets (35) (36). (34) The attachment position is not limited and is supported at the high rigidity position of the threshing portion (4).

  As described above, the feed chain (5) is stretched in the front-rear direction on one side of the threshing part (4), and the feed chain (5) is provided so as to be pivotable laterally about the fulcrum shaft (33). A side cover (38) that covers the side of the handling cylinder (6) to be installed in the threshing section (4) is attached to the feed chain (5) side, and the feed chain (5) and the side cover (38) are In the combine that rotates sideways around the fulcrum shaft (33), the chain rail (28), which is a side frame provided with the feed chain (5) and the side cover (38), is connected to the barrel (6) or the side. The fulcrum shaft (33) is provided on one of the front and rear sides of the chain rail (28) that is formed to be longer than the front and rear width of the part cover (38) and protrudes from the side cover (38), Feed chain (5) and side cover 38) is a locking tool that is supported by the working position the locking pin (43), provided on the other side of the fulcrum shaft (33) opposite the chain rail (28). Then, the front side and the side cover (38) of the feed chain (5) are moved outwardly so that the threshing part (4) side surface and the rear side surface of the cutting part (8) are largely opened, and the feed chain ( 5) There is no burden of detaching the side cover (38), and the operation of separating or joining the feed chain (5) and the side cover (38) to the side surface of the threshing part (4) is performed lighter than before. , There is no hassle to replace the crimp net (37) as the receiving net through the feed chain (5) and the side cover (38) as in the prior art, and at the side parts of the threshing part (4) and the cutting part (8) The problem that the behavior of the worker is regulated by the feed chain (5) and the side cover (38) is eliminated. Further, the fulcrum shaft (33) is provided by projecting a chain rail (28) on one of the front and rear sides of the side cover (38), and the cover (38) is not restricted by the side cover (38) or the like. The fulcrum shaft (33) is installed on the highly rigid part of the fuselage outside the width of the front and rear sides), and the fulcrum shaft (33) and the locking pin (43) are separated from each other before and after the chain rail (28). To reduce the engaging / disengaging force of the pin (43) and simplify the locking structure.

  In the present embodiment, the rotation fulcrum shafts (33) and (34) that support the feed chain (5) so as to be freely opened are connected to the sprocket shaft (57) of the driven sprocket (30). Since the size (t) is located closer to the threshing main body than the feed chain (5) at the rear position, the rear side of the pivot plate (29) (32) which becomes the last end when the feed chain (5) is opened The margin of entry into the threshing body at the end is minimized, and safe opening work without any inconvenience such as interference in a state where the entire width of the machine body is suppressed within a certain dimension without projecting the feed chain (5) outside the threshing body. Can be done.

  Further, when the feed chain (5) is rotated and released, the feed chain (5) is wound around the drive sprocket (26) and is opened integrally with the chain rail (27) (28) or the like. Therefore, the opening operation of the feed chain (5) can be easily performed and the work efficiency is excellent, and when the feed chain (5) is opened, the handling cylinder side cover (38) is also pulled out to the outside at the same time. (4) The side surface is in an open state, and inspection and maintenance in the handling chamber and replacement work of the crimp net (37) can be performed conveniently.

Side surface explanatory drawing of a feed chain part. The whole side view of a combine. FIG. Cross-sectional explanatory drawing of a threshing part. Plane explanatory drawing of a feed chain part. FIG.

Explanation of symbols

(5) Feed chain (6) Handle (26) Drive sprocket (28) Chain rail (side frame)
(33) Support shaft (38) Side cover

Claims (1)

In the combine provided with the threshing part (4) for performing the threshing process while holding and conveying the cereal by the feed chain (5) and the cocoon (21),
The feed chain (5) is provided so as to be openable to the side of the threshing part (4), and the feed chain (5) is provided on the side part of the threshing part (4) so as to be rotatable around the rotation fulcrum shaft (33). The combine is provided with a transmission connecting portion (55) that is detachably connected to a driving shaft (52) that is a driving portion on the machine side, on the side away from the rotating fulcrum shaft (33) .

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