JPH0567219U - Harvester harvester - Google Patents

Abstract

(57) [Summary] [Purpose] Make the cutting blade crank drive the cutting blade statically and smoothly. [Configuration] The cutting blade (21) via the crank rod (39) and the cutting blade arm (42) to the cutting blade crank (37).
The cutting blade crank (37) in a structure in which the culms are connected by reciprocating left and right.
The rotation plane (A) and the swing plane (B) of the cutting blade arm (42) are provided so as to be substantially parallel to each other, and the cutting blade crank (37) is moved from the arm fulcrum (41) position of the cutting blade arm (42). The position of the crank fulcrum (35) is provided on the inner side of the body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a harvesting device for a harvester, which is mainly used in a combine or a binder, and which uses a cutting blade to harvest a grain culm.

[0002]

[Prior Art]

 In some of the seed reaping devices, the oscillating plane of the cutting blade arm and the plane of rotation of the cutting blade crank are provided so as to be orthogonal to each other. In addition, the swing plane of the cutting blade arm and the rotation plane of the cutting blade crank are provided substantially parallel to each other, and the crank fulcrum position of the cutting blade crank is provided outside the machine body with respect to the arm fulcrum position of the cutting blade arm. There is something.

[0003]

[Problems to be solved by the device]

 However, in the former case, the driving force was not transmitted smoothly, and not only was there a problem with the durability of these drive systems, but there was also the problem that it was difficult to obtain smooth left-right reciprocating motion of the cutting blade. .. In the latter case, the direction of the force acting on the cutting blade crank and the moving direction of the cutting blade are in the same direction, and the vibration of this cutting blade is amplified and There is a problem that a smooth cutting operation cannot be obtained.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention has a structure in which a cutting blade is connected to a cutting blade crank via a crank rod and a cutting blade arm so as to reciprocate left and right, and a grain plane is cut. And the rocking plane of the cutting blade arm are set substantially parallel to each other, and the crank fulcrum position of the cutting blade crank is provided closer to the inside of the machine than the arm fulcrum position of the cutting blade arm. The direction of the force acting on the cutting blade via the crank rod and the direction of the force for moving the cutting blade by the cutting blade arm are made opposite to each other, and the reaction force caused by the movement of these cutting blade crank and cutting blade is changed. By making the inertial forces and the inertial forces cancel each other out, it is possible to reduce vibration and impact force to enable smooth and static grain cutting.

[0005]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a cutting blade, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, where (1) is a track frame on which a traveling crawler (2) is installed, and (3 ) Is a machine frame 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 built in, (8) is a mowing unit including a cutting blade (9) and a grain culm transport mechanism (10), (11) is a straw chain (12), a straw processing unit that faces the end of (13), and (14) is an operation unit. A trolley provided with a seat (15) and a driving operation unit (16), (17) a grain tank for storing the grain from the threshing unit (4) through a lifting cylinder (18), and (19) the above This is an upper discharge auger that takes out the grains in the grain tank (17) to the outside of the machine, and is configured to continuously perform cutting and threshing work. .

As shown in FIGS. 1 and 4 to 5, the cutting blade (9) includes a triangular upper cutting blade (21) for riveting to the upper knife bar (20) at a constant pitch, and a lower knife bar (2). 2) A triangular lower cutting blade (23) that rivets at a constant pitch, and a rear connecting horizontal pipe (25) of the cutting frame (24). ) Between the upper cutting blade (21) and the lower cutting blade (23) with the upper cutting blade (21) and the lower cutting blade (23) being vertically symmetrically overlapped with each other, a blade holder (29) is attached to the upper surface of the receiving plate (28), It is attached via the upper and lower knife bar guide plates (30) and (31) and the adjusting plate (32).

The cutting blade (9) is provided with only the upper cutting blade (21) so as to be capable of reciprocating left and right, and the cutting blade is provided on the left end side of the lower case (33) constituting the cutting frame (24). A driving case (34) is provided, and the cutting blade crank (37) is attached to the cutting blade crank shaft (35) which is a crank fulcrum of the cutting blade driving case (34) via a flywheel (36). Attach the proximal end of the cutting blade crank rod (39) to the crank pin (38) of the cutting blade crank (37). Then, the cutting tube arm base (40) on the cutting frame (24) side is provided with a cutting blade arm fulcrum shaft (41) as a cutting blade arm fulcrum so that the middle cylinder (42a) of the cutting blade arm (42) can swing freely. The cutting blade (9) is pivotally supported, and the tip of the first swing arm (42b) of the cutting blade arm (42) is connected to the tip of the crank rod (39) through a rod shaft (39a). The second swing arm of the cutting blade arm (42) is fitted into the fitting groove (44) of the knife head (43) integrally riveted to the upper knife bar (20) together with the upper cutting blade (21) at the left end position of the cutting blade arm (42). (42c) A bearing (45) pivotally supported at the front end is engaged and connected, and the upper cutting blade (21) is reciprocally moved in the left-right direction by the rotation of the cutting blade crank (37) to cut the grain stems. Is configured as follows.

By the way, the rotation plane (A) of the cutting blade crank (37) and the swinging plane (B) of the cutting blade arm (42) are provided so as to be substantially parallel to each other, and the plan view is as follows. In the configuration in which the cutting blade drive unit is arranged on the left end side of the lower case (33), the crankshaft (35) of the cutting blade crank (37) is located on the right side of the fulcrum shaft (41) of the cutting blade arm (42). When the crankshaft (35) is moved from the left side to the right side as shown by the solid line arrow in FIG. 1, the upper cutting blade (21) is moved from the left side to the right side. In addition, when the crankshaft (35) is moved from the left side to the right side as indicated by the broken line arrow in the figure, the upper cutting blade (21) is moved from the right side to the left side. By moving in the opposite direction, these movements occur The reaction force and the inertial force of the upper cutting blade (21) are made to cancel each other so that the smooth movement of the upper cutting blade (21) to the left and right can be performed with minimal impacts and vibrations due to the driving of these cutting blades. is doing.

In addition, (46) is a grass plate, (47) is a main cutting frame, and (48) is a raising drive pipe.

Contrary to the above, in the structure in which the cutting blade drive unit is arranged on the right end side of the lower case (33) in plan view, the fulcrum of the cutting blade arm (42) located on the right side The crankshaft (35) of the cutting blade crank (37) is offset from the shaft (41) in the leftward direction, which is the inside of the fuselage of a constant size (t).

The present embodiment is configured as described above, and the rotation plane (A) of the cutting blade crank (37) and the swing plane (B) of the cutting blade arm (42) are made substantially parallel to each other. The driving rotation direction of the cutting blade crank (37) and the moving direction of the upper cutting blade (21) are made opposite to each other, so that when the cutting blade crank (37) and the upper cutting blade (21) are driven, The reaction force and inertial force generated on the side of the machine can be made to cancel each other out, and it is possible to minimize the occurrence of shocks and vibrations on the side of the machine, and to achieve a smooth and smooth top cutting. The blade (21) can be reciprocated right and left.

[0012]

[Effect of the device]

 As is clear from the above embodiments, according to the present invention, the cutting blade (21) is connected to the cutting blade crank (37) via the crank rod (39) and the cutting blade arm (42) so that the cutting blade (21) can reciprocate left and right. In the structure for cutting grain culms, the rotation plane (A) of the cutting blade crank (37) and the swinging plane (B) of the cutting blade arm (42) are provided so as to be substantially horizontal. Since the position of the crank fulcrum (35) of the cutting blade crank (37) is located closer to the inside of the machine than the arm fulcrum (41) position of the cutting blade arm (42), The direction of the force acting on the cutting blade (21) via the crank rod (39) and the direction of the force driving the cutting blade (21) by the cutting blade arm (42) are made opposite to each other, and these cutting blades are Crank (37) and cutting blade (21 The reaction force and inertial force that accompany the movement of the robot can be made to cancel each other out, and the vibrations and impacts generated on the aircraft side can be suppressed to the minimum, so the cutting blade (21) can be It has remarkable effects such as smooth and statically driven and good harvesting work.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of a cutting blade.

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

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

FIG. 4 is an overall plan view of a cutting blade section.

FIG. 5 is a side view illustrating a cutting blade portion.

[Explanation of symbols]

 (21) Cutting blade (35) Crank shaft (crank fulcrum) (37) Cutting blade crank (39) Crank rod (41) Cutting blade arm fulcrum shaft (arm fulcrum) (42) Cutting blade arm (A) Rotating plane (B ) Swing plane

Claims (1)

[Scope of utility model registration request] 1. A structure in which a cutting blade is connected to a cutting blade crank via a crank rod and a cutting blade arm so as to reciprocate left and right to cut a grain culm, and a rotary plane of the cutting blade crank and a cutting blade are provided. A harvesting device for a harvesting machine, characterized in that it is provided so as to be substantially parallel to the swing plane of the blade arm, and the crank fulcrum position of the cutting blade crank is provided closer to the inside of the machine than the arm fulcrum position of the cutting blade arm. .