JPH065704Y2 - Vertical combine transport structure - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to a vertical transport structure of a combine.

(B) Conventional technology Conventionally, with respect to a machine having a threshing device, a vertical conveying device has been used to adjust the handling depth in a combine harvester configured to vertically move the position of the mowing device and adjust the position in the horizontal direction. It is provided.

(C) Problems to be Solved by the Invention However, when the position of the mowing device is configured to be vertically movable and positionally adjusted in the horizontal direction, a vertical transport device for lifting and transporting the grain culms toward the feed chain of the threshing device, and a feed. The relative position with respect to the front end of the chain fluctuates, and the handling depth in the handling cylinder changes, leaving unhandled or deep handling, and threshing work at an appropriate handling depth cannot be performed, resulting in reduced work efficiency. Was there.

(D) Means for Solving the Problem In the present invention, in a machine having a threshing device, in a combine harvester configured to vertically move the position of the mowing device and adjust the position in the horizontal direction, To the feed chain, the base end of the vertical conveyor that lifts and conveys the culms is rotatably supported in the vicinity of the feed chain, and the front end of the vertical conveyor is moved in conjunction with the position adjustment on the reaper side. It is intended to provide a combined vertical transport structure of a combine.

(E) Action In this invention, the position of the mowing device is vertically movable with respect to the machine body and can be adjusted in the left-right direction, and the end of the vertical conveying device is provided near the feed chain. The relative position of grain culm inheritance between the vertical transfer device does not change, and since the front end of the vertical transfer device is linked to move in conjunction with the movement of the reaping device, it is located at the front end of the vertical transfer device and in front of it. Good transfer from the reaping device can be performed, and the depth position of the handle can be kept constant.

(F) Effect According to this invention, the front end of the vertical conveyance device is linked so as to move in association with the position adjustment on the reaping device side, and the base end of the vertical conveyance device is rotatable near the feed chain. Therefore, even if the reaper moves relative to the machine, the relative position of grain culm inheritance between the end of the vertical conveying device and the feed chain does not change.

Therefore, shallow handling and deep handling can be prevented without changing the handling depth in the handling cylinder, and smooth threshing operation can be performed without disturbing the succession of grain culms.

Further, since the starting end of the vertical transport device is linked so as to move in association with the movement of the reaping device, the effect that the harvested grain culm can be successfully transferred to the vertical transport device. Play.

(G) Embodiments An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 and FIG. 2 are a front perspective view and a front left side view of a combine according to the present invention.

In FIGS. 1 and 2, (1) is a combine airframe having a pair of left and right traveling crawlers (2).
A threshing device (3) is mounted on the upper part, and a handling barrel (4) in the handling chamber of the threshing device (3) is arranged with its axis along the traveling direction of the machine body (1).

(5) is a feed chain along the threshing device (3),
The feed chain (5) is arranged along the left side in the traveling direction of the machine body (1), and the front end of the feed chain (5) is a threshing device (3).
Of the front plate (3 '), and the front end of the front plate (3') is arranged so as to face the rear end of the vertical transfer device (6) in the pre-cutting section (a).

The mowing pretreatment section (a) is attached via a support arm (7) extending from the front part of the machine body (1), and is attached to the front end of the lower frame (8) of the support arm (7). Is provided with a plurality of grass bodies (9), then a mowing device (10) at the rear thereof, and a plurality of grain culm raising devices (11) at the front surface of the pre-mowing treatment unit (a). Along with it, a scraping wheel (12), an upper transfer device (13), and a vertical transfer device (6) are arranged behind it.

Further, FIG. 1 is a perspective view of a main part, and (14) is a support base for mounting the cutting pretreatment part (a) on the machine body (1) so as to be freely pitched and adjustable in the left-right position. Frame (14)
Is attached to the base side of the support arm (7) of the pre-cutting processing section (a), and has a substantially L-shaped pipe-shaped left and right adjustment arm (1
5) and a pitching arm (16) having a base end attached to the left and right adjusting arm (15) and rotatably supported with respect to the left and right adjusting arm (15).

This left / right adjustment arm (15) has a left / right direction of the machine body (1) as a longitudinal direction, and a rotation shaft (17) to which the base end of the left / right adjustment arm (15) is attached.
Are along the front-back direction of the airframe (1).

This rotating shaft (17) is the front plate (3 ') of the threshing device (3) of the machine body (1).
Further forward, the feed chain (5) is arranged inside the machine body (1) at the front end and at a position closer to the lower part than the end of the vertical conveying device (6), and is separated by an appropriate size in the machine longitudinal direction. It is rotatably supported by a pair of front and rear left and right adjusting arm rotation bearings (20) and (21) which are erected on a left frame (19) attached to the front frame (18).

The left-right adjusting arm (15) has an appropriate length from the rotation shaft (17) and has an inclination angle with respect to the rotation shaft (17), and the rotation shaft (17) allows the thresher (3) to move. It is directed toward the front plate (3 ') and extends in the left and right direction of the machine body (1) by bending it in the front direction of the machine body at the same height position at a constant distance from the rotating shaft (17). It is provided in the shape of.

Further, the left and right adjusting arms (15) are located above the front frame (18), and are arranged close to the front plate (3 ′) of the threshing device (3) in parallel with the front plate (3 ′). The tip is moved up and down by turning around the moving shaft (17) as a turning fulcrum.

In addition, the left and right adjusting arms (15) are provided with a pair of pitching arm rotation bearings (22) and (23) on the upper side of the left and right adjusting arms in the front-back direction of the machine body (1). A rotary shaft (25) integrally attached to the transmission case shaft (24) is rotatably fixed between the rotary bearings (22) and (23).

Then, the base end of the pitching arm (16) is attached to the transmission case shaft (24) at a right angle to the axial direction.

As a result, the pitching arm (16) can rotate about the rotation shaft (25) supported by the pitching arm rotation bearings (22) and (23) as a fulcrum, and the tip end thereof can move up and down. It is configured.

A power transmission mechanism that transmits power from the power section of the machine body (1) to the pre-harvest processing section (a) transmits the rotation of the Karako shaft (26) of the threshing device (3) to the pulley (28) by the belt (27). , The pulley (28) is a front left and right adjustment arm rotation bearing portion (2) that supports the rotation shaft (17).
It is provided near 0) and (21), and supports (29) for the pulley (28).
And a transmission shaft part (31) attached to the left and right adjusting arm (15) via a stay (30), a flexible joint (32)
Is installed.

The transmission shaft (31) and the input shaft (33) to the transmission case shaft (24) to which the base end of the pitching arm (16) is attached are stretched by a belt (34) for input. The shaft (33) is adapted to be driven, and power is transmitted from the input shaft (33) to the grain culm raising device (11) via the bevel gear (35) and the like.

In addition, the scraping wheel (1) is provided via the bevel gear (36) in the transmission case shaft (24) and the shaft (37) in the pitching arm (16).
2), power is transmitted to the reaper (10), and the interlocking mechanism (5
The upper transfer device (13) and the vertical transfer device (6) shown in FIG. 3 are configured to be driven via 7).

(38) is a left / right unit for vertically moving the tip of the left / right adjustment arm (15) in order to keep the pre-mowing processing unit (a) in a substantially horizontal state regardless of the tilting of the body (1) in the left / right direction. It is an adjustment drive means and is composed of a hydraulic cylinder (39) mounted between the front frame (18) and the left and right adjustment arms (15), and its piston rod (40) is made substantially vertical. Left and right adjustment arm (1
5) It is pivotally connected to the bracket (41A) protruding from the tip of the hydraulic cylinder (39).
Pins are pivotally attached to the bracket (41B) such as 8) so that the pre-mowing treatment section (a) can be tilted in the left-right direction of the machine body (1).

Reference numeral (42) is a pitching drive means having a function of restricting the rotation of the pitching arm (16) when the left and right adjustment arms (15) are rotated for left and right adjustment, and the pitching drive means (42) is a hydraulic cylinder.
(43), the base end of this hydraulic cylinder (43) is connected to the bracket (44) attached to the body (1) such as the front frame (18) via the ball joint (45), and the piston rod ( 46) is a ball joint to the bracket (47) attached to the lower surface of the pitching arm (16).
Connected via (48).

In addition, the tip of the pitching arm (16) is the pre-cutting processing section.
The lower side of (a) is supported, and the lower end of the cutting pretreatment section (a) is moved up and down by driving the pitching arm (16).

(49) is a horizontal sensor attached to the left and right adjustment arm (15),
When a detection signal for detecting that the right side of the machine body (1) is tilted downward is issued, the hydraulic switching valve (not shown) is operated in one direction to operate the piston rod (40) and the left and right adjustment arms ( The left and right adjustments of (15) are performed to raise the right side of the pre-cutting section (a), while if the left side of the machine body (1) is tilted downward, the horizontal sensor ( In response to the detection signal of (49), the hydraulic switching valve is operated in the opposite direction to the one described above, and the piston rod (40) is operated so that the left and right adjusting arms (15) move up on the left side of the pre-cutting section (a). It is a thing.

When the machine body (1) travels on the field scene (G) in a substantially horizontal state in the horizontal direction, the combine configured as described above has the mowing device (10) and the left and right adjusting arms in the mowing pretreatment section (a). Although (15) holds the almost horizontal state with respect to the field scene (G),
(1) When one traveling crawler falls into a recess such as a groove in a field scene (G) and the aircraft (1) leans downward to the right (or left) (that is, its left side when viewed from the front of the aircraft). (When tilted downward), the horizontal sensor (49) detects that the machine body (1) and the pre-mowing processing unit (a) are tilted to the right, and operates the hydraulic switching valve to operate the hydraulic cylinder based on the detection signal. Send pressure oil to the side of the piston rod (40) that advances (or retracts) the piston rod (40) and pushes up (or lowers) the tip of the left-right adjustment arm (15) to make the cutting pretreatment section (a) substantially horizontal. It is corrected so that

Since the ground height becomes higher (or lower) with this correction operation, a pitching arm 16 is driven to detect the height by a cutting height sensor (not shown) and drive the pitching arm (16). The drive means (42) is operated to lower (or raise) the lower end of the pre-cutting processing section (a) to correct the cutting height.

The embodiment of the present invention is configured as described above, and the end (6-2) of the vertical conveyance device (6) is continuously provided on the machine body (1) side, and the start end (6-1) is set to the pre-mowing processing unit. Even if the mowing pretreatment section (a) adjusts to the left and right in the left and right direction by connecting to the (a) side, the end (6-2) of the vertical transport device (6)
And the relative position of the grain culm inheritance with respect to the starting end of the feed chain (5) is not changed so that the handling depth is not changed.

Therefore, at the starting end (6-1) of the vertical transfer device (6), the cutting pretreatment unit is attached to the guide plate (51) that guides the vertical transfer chain (50).
A stay (53) protruding from the mowing frame (52) of (a) is continuously provided, and the mowing frame (52) supports the starting end portion of the vertical conveying device (6) through the stay (53), and , Stay (53)
A hydraulic cylinder (54) is connected to this hydraulic cylinder (5
4) The vertical conveyance device
(6) The handle itself can be adjusted to adjust the depth.

Moreover, at the end (6-2) of this vertical transfer device (6), the stay (55) tip protruding from the front plate (3 ') of the threshing device (3) near the end of the guide plate (51). Are continuously connected via a ball joint (56), and the end (6-2) of the vertical transfer device (6) is supported and connected to the machine body (1) side via the stay (55). The end (6-1) of the vertical transfer device (6) faces the start end of the feed chain (5) and is the place where the grain stems are inherited. The handling depth in (4) will change. Therefore, when the vertical conveyance device (6) itself adjusts the handling depth by the handling depth sensor, the stay (55) and the ball joint (56) are configured to be able to move only to adjust the handling depth. There is.

Next, the structure of power transmission to the vertical transfer device (6) will be described.When power is transmitted from the Karato shaft (26) to the input shaft (33) of the pre-cutting section (a), the input shaft ( 33) power is transmitted to the drive sprocket (58) of the vertical transfer device (6) from the interlocking mechanism (57).
Vertical transport device using individual universal joints (59)
The interlocking mechanism (57) is configured to follow even if (6) operates to adjust the handling depth.

As described above, according to the above-described embodiment, when the machine body (1) is tilted leftward or rightward, the left-right adjustment arm (15) is rotated about the rotation axis (17) to perform the left-right adjustment operation. , The end of the vertical conveyor (6) (6-2)
Since the part is supported on the fuselage (1) side via the stay (55), the state of inheritance with the feed chain (5) does not change significantly, and the conventional transfer of grain stems Since the path was completely separated between the pre-cutting processing section (a) and the feed chain (5), the left-right adjustment operation of the pre-cutting processing section (a) caused fluctuations with the feed chain (5). Of
Longitudinal transport device (6), which is a component of the pre-mowing processor (a)
-2) is attached to the side of the machine (1) that has the feed chain (5), so continuity occurs between them, the handling depth does not change, the inheritance is not disturbed, and the cutting and threshing work is smooth. It has the effect that

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a pre-cutting processing unit in a combine vertical transport structure of the present invention. FIG. 2 is a side view of the structure of the present invention. FIG. 3 is a front view of the same. FIG. 4 is an explanatory view of the structure of the present invention. FIG. 5 is an operation explanatory view showing a main part of the structure of the present invention. (1): Airframe (3): Threshing device (5): Feed chain (6): Vertical transfer device (10): Mowing device

Claims (1)

[Scope of utility model registration request] 1. A harvester (1) for a combine (1) having a threshing device (3), wherein the position of the harvester (10) is vertically adjustable and positionally adjustable in the left-right direction.
From 0) to the feed chain (5) of the threshing device (3), attach the base end of the vertical transport device (6) that lifts and transports the grain culms to the feed chain (5).
A vertical transport structure for a combine characterized in that it is rotatably supported in the vicinity and that the front end of the vertical transport device (6) is linked so as to move in conjunction with position adjustment on the cutting device (10) side. .