JPH09210U - Combine - Google Patents

Abstract

(57) Abstract: A cutting blade device (21) in which swinging of a cutting blade drive arm (45) does not act on a slide portion is smoothly laterally opposed to a cutting main frame (25). Slide to move. SOLUTION: A reaping device (2) for reaping grain culms after being raised.
In a combine in which 1) is configured to be slidable relative to the cutting main frame (25) in the lateral direction, the cutting blade drive arm (45) of the cutting device (21) is slid on the cutting main frame (25). Mount it rearward from the front end of the support part.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a combine harvester which is configured to slide a harvesting device for harvesting grain culms after being raised so as to be slidable in a lateral direction relative to a harvesting main frame.

[0002]

[Prior art]

 Conventionally, a mowing device that does not slide relative to the mowing main frame in the lateral direction has been attached to the rear part of the mowing frame extending from the tip of the mowing main frame forward and in parallel through the lateral frame.

[0003]

[Problems to be solved by the device]

 When the mowing device is configured to be slidable relative to the mowing main frame in the lateral direction, a guide frame is continuously provided in the lateral direction at the tip of the mowing main frame, and the lateral frame of the mowing frame is slid onto the guide frame. The cutting blade drive arm of the mowing device, which reciprocally swings at high speed, is attached to the guide frame, that is, when the cutting support arm of the cutting main frame is mounted in front of the slide support part, the cutting blade drive arm swings on the slide part. There was a problem that the shaking greatly affected the smooth cutting movement of the reaping device.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, in a combine in which the harvesting device for harvesting the grain culms after being raised is configured to be slidable laterally relative to the harvesting main frame, the harvesting blade drive arm of the harvesting device is harvested. It is installed behind the front end of the slide support part of the main frame.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a side view of the cutting blade drive unit, 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, and (3 ) Is a machine frame installed on the truck frame (1), (4) is a threshing section in which the feed chain (5) is stretched on the left side, and a handling cylinder (6) is built in, and (7) is a cutting blade and a grain. A mowing section for two articles equipped with a culm transfer mechanism, (8) is a straw processing section that faces the end of a straw chain (9) connected to the end of the feed chain (5), and (10) is each part of the combine. An engine to be driven, (11) is a paddy tank that stores grain taken out from the threshing section (4) by facing the fried cylinder (12), (13) is a driver's seat (14) and a driving operation section (15) It is a driver's cab equipped with the cutting section (7) for cutting grain culms and the threshing section (4) for threshing. It is configured so as.

As shown in FIGS. 4 to 6, the reaping part (7) has left and right raising cases (18) having raising tines (17) for raising uncut grain culms which are taken in through a sward plate (16). And left and right star wheels (19) and left and right scraping belts (20) for scratching the culm side and the tip side of the raised grain culm, and a reciprocating cutting blade () for cutting the culm side of the grain culm when scratched ( 21), the culm side and the tip side of the two grain culms that join the scraping side of the star wheel (19) and the scraping belt (20) are transferred to the feed start end of the feed chain (5). Between the traveling mission (24) and the left traveling crawler (2) that are equipped with a vertical transport chain (22) and an upper transport tine (23) and are fixedly installed from the front side of the threshing section (4) to the front end of the machine stand (3). Through the harvesting connecting frame (25), which is projected diagonally forward and downward, and the connecting frame. A mowing part (7) is supported in front of the threshing machine by a mowing frame (26) provided on the tip side of the rame (25).

Further, right and left reaping input cases (27) and (28) are fixed to both sides of the upper end (the threshing machine side) of the connecting frame (25) in the left-right direction of the machine so as to project on the same axis. 27) (28) is rotatably supported by a cradle (29) which is vertically fixed to the front end of the machine base (3), and a mowing lifting cylinder (between the connecting frame (25) and the machine base (3) ( 30) is interposed, and the reaping section (7) is moved up and down with the reaping input cases (27) and (28) as fulcrums.

Further, left and right support pipes (31) and (32) are projectingly fixed on both sides of the lower end of the connecting frame (25) in parallel with the mowing input cases (27) and (28), and the support pipes (31) A guide frame (33) that is integrally connected in parallel to (32) is provided, and the guide frame (33) supports the rear horizontal connecting pipe (34) of the mowing frame (26) slidably to the left and right. A slide frame (35) which is an external thread in which a female screw cylinder (34) penetrating the connecting frame (25) is rotatably fitted in the support pipes (31) (32) and is passed through the female screw cylinder (34). Lower left and right gear cases (37) for raising and fixing the support pipes (36) vertically are fixed to both ends of the left and right, and the right gear case (37) is connected to the right side of the rear lateral connection pipe (34). The left gear case (37) is integrally connected to the left side of the rear lateral connecting pipe (34) via the cutting blade drive table (39) while the rear lateral connecting pipe (34) is integrally connected to the rear lateral connecting pipe (34). The slide frame (35) is integrally connected to the rear of the connecting pipe (34) in a horizontal direction, and the cutting unit (7) is moved left and right by the non-rotating left and right slides of the slide frame (35) by the rotation of the female screw cylinder (34). It is configured to slide.

As shown in FIGS. 7 and 8, a cutting blade base (41) in which the receiving blades (40) are fixed in a horizontal row at a predetermined pitch is provided, and the cutting edges of the respective receiving blades (40) are directed toward the front of the machine body. Then, the cutting blade base (41) is laid horizontally on the front side of the rear horizontal connecting pipe (34), and the brackets (41a) are attached to the right and left and the central portion of the cutting blade base (41) on each cutting frame (26). They are connected together via.

Further, the cutting blades (21) are fixed to the knife bars (42) horizontally in a row at a predetermined pitch, and the cutting blades (21) are laterally attached to the upper surface side of the receiving blades (40) via a cutting blade presser (43) or the like. It is slidably polymerized and supported.

Then, the middle of the cutting blade drive arm (45) is rotatably supported on the lower surface side of the cutting blade drive base (39) through a fulcrum shaft (44), and one end of the drive arm (45) is supported. The engaging pin (46), which is the connecting shaft to be provided, is engaged with the U-shaped groove (48) of the knife head (47) integrally connected to the knife bar (42), while protruding from the lower surface of the left gear case (37). One end of the pitman (51) is connected to the cutting blade drive shaft (49) through the cutting blade crank (50), and the other end of the pitman (51) is provided at the other end of the drive arm (45). It is rotatably connected to the support shaft (52).

As shown in FIG. 1, the cutting blade drive arm (45) has a first arm portion (45b) at a gap of about 180 degrees on the same plane from the outer periphery of the bearing portion (45a) of the fulcrum shaft (44). And, the second arm portion (45c) is formed so as to project, and the fulcrum shaft (44) is rotatably fitted to the bearing portion (45a) substantially perpendicular to the respective arm portions (45b) (45c). The upper part of the fulcrum shaft (44) is fixed and supported on the horizontal upper surface of the cutting blade drive base (39) at a substantially right angle, and the end of the first arm (45b) is engaged with the fulcrum shaft (44) in parallel. A stop pin (46) is pivotally supported, and a support shaft (52) is pivotally supported at an end of the second arm (45c) in parallel with the fulcrum shaft (44).

The present embodiment is configured as described above, and the rotary movement of the cutting blade drive shaft (49) is moved back and forth by the cutting blade crank (50), the pitman (51) and the cutting blade drive arm (45). The cutting blade (21) is reciprocated on the upper surface of the receiving blade (40) and is transmitted to the knife bar (47). At this time, the cutting blade drive arm (45) has a pitman (51) or the like at one end. It has a knife bar (46) at its end and swings around the fulcrum shaft (44), but the swings are performed in substantially the same horizontal plane, and a force is applied to the drive arm (45) in a straight line. The force applied to the fulcrum shaft (44) is straightforward and advantageous in strength.

[0014]

[Effect of the invention]

 As is clear from the above embodiments, the present invention is a combine harvester (21) for harvesting grain culms after being raised, which is configured to be slidable laterally relative to the harvesting main frame (25). The cutting blade drive arm (45) of the cutting device (21) is attached to the rear of the slide support portion front end of the cutting main frame (25). The cutting blade drive arm (45) is attached to the cutting device (21) side. That is, by arranging not on the slide side but on the cutting main frame (25) side, that is, the fixed side, it is possible to suppress the vibration of the cutting blade drive arm (45) acting on the slide portion, and thus the cutting device. This has a remarkable effect that the (21) can be slid smoothly.

[Brief description of drawings]

FIG. 1 is a side view of a cutting blade drive unit.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a front view of the reaper.

FIG. 5 is a side view of the cutting unit.

FIG. 6 is a plan view of a mowing unit.

FIG. 7 is a plan view of a cutting blade part.

FIG. 8 is a side view of the cutting blade part.

[Explanation of symbols]

 (21) Cutting blade (cutting device) (25) Cutting connection frame (cutting main frame) (45) Cutting blade drive arm

Claims (1)

[Utility model registration claims] 1. A mowing device (2) for mowing grain culms after they have been raised.
In a combine in which 1) is configured to be slidable relative to the cutting main frame (25) in the lateral direction, the cutting blade drive arm (45) of the cutting device (21) is slid on the cutting main frame (25). A combine characterized by being mounted behind the front end of the support part.