JPH10117557A - Grain culm carrying device for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a threshing depth carrying body from being abutted to a pre-processing part even when the position of the pre-processing part is moved in a horizontal direction to a traveling machine body. SOLUTION: A guide body 14a is successively provided obliquely and curvedly between a right side transmission case 15 and the case of a rake-in device 9 and the guide body 14a is fitted to an arm 14b attached to the start end side of the threshing depth carrying body 12. Thus, a stopper 29 is slid along a transmission case 30 so as to change an abutting position in a vertical direction between the lower surface of the threshing depth carrying body 12 and a pre-processing frame 5 for supporting the pre-processing part 2 freely turnably in the vertical direction so as not to change the height position of the start end side of the threshing depth carrying body 12 regardless of the movement in the horizontal direction of the pre-processing part 2. Then, the stopper 29 sets the lower limit position to the pre-processing part 2 of the threshing depth carrying body 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain rod transport device for a combine, and more particularly, to a grain rod transporter for lifting and transporting a grain rod cut by a preprocessing unit to a threshing feed chain. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain transport device that rotates in the left-right direction in conjunction with movement in the left-right direction.

[0002]

2. Description of the Related Art As is well known, a combine includes a pre-processing unit 2 having a cutting blade (not shown) for cutting a grain stick as shown in FIG.
Is attached to the front part of the traveling body 1 so as to be movable left and right. That is, in a normal cutting operation in which the left side of the traveling machine body 1 is on the uncut ground side, the pre-processing unit 2 is moved to the left position so that the left traveling crawler 3 is separated from the uncut stick as much as possible. (A position protruding to the left from the traveling body), and in the middle split operation traveling in the uncut ground, the pre-processing unit 2 prevents the right traveling crawler (not shown) from depressing the uncut grain stick. Can be moved to the right position (substantially in front of the traveling body).

At the front of the traveling machine body 1, there is provided a tubular mowing drive case 4 arranged in the left-right direction. The mowing drive case 4 rotatably houses a mowing drive shaft (not shown) and rotatably supports the pre-processing unit 2. This mowing drive shaft inputs power from a transmission (not shown) via an input pulley (not shown), and then transmits power from the shaft middle portion to the pre-processing unit 2 via a first bevel gear mechanism (not shown). In addition to being configured to transmit power, the power is transmitted from a shaft end to a handling depth transport device 36 as a grain rod transport device to be described later via a second bevel gear mechanism (not shown).

[0005] As shown in FIG. 5, a pre-processing frame 5 extending below a front portion of the traveling machine body 1 includes a mowing drive case 4.
The base end portion is integrally connected to the main body, and is moved up and down (turned up and down) based on expansion and contraction of a cylinder 6 connected to an intermediate portion.

[0005] The pre-processing unit 2 includes a divider 7 for weeding uncut corn sticks, a raising device 8 for causing weeded corn sticks,
A scraping device 9 for scraping the root side of the cereal rod, a cutting blade (not shown) for cutting the root of the raked rod, a star wheel for collecting the culm and transporting it further backward, and a transport. The stock feeder 10 having a feed chain, the threshing unit 11 while holding the position appropriately in order to change the handling depth of the grain rod, and changing the posture of the standing grain rod to the horizontal state.
It has a handling depth transport device 36 as a grain rod transport device for transporting it toward the machine.

The handling depth transport device 36 includes a handling depth transporting body 12 having a U-shaped pipe 12c for integrally fixing a head-locking transporting body 12a and a stock-holding transporting body 12b. A handling depth adjusting device 13 that rotates the transporting body 12 in the up-down direction with the handling side at the rear side of the transporting body 12, and a handling depth transporting body in conjunction with the left-right movement of the preprocessing unit 2. And a connecting mechanism 14 connected so as to rotate the left and right 12 in the left-right direction. Note that the handling depth transport body 12 is driven up and down by power transmission from a cutting drive shaft on the traveling machine body 1 side in order to appropriately select the handling depth of the grain rod. In addition, the handling depth transport body 12
The U-shaped pipe 12c is bent in a U-shape over the ear-tip locking and transporting body 12a, and is formed so that the ear of the grain stick does not abut. Further, the handling depth transport body 12 is disposed so that the width direction is inclined at a predetermined angle with respect to the field scene, and the starting end side of the tip locking transport body 12a in the grain rod transport direction and the stock-holding transport body. The start end side of 12b overlaps in plan view, and the end side of the tip-locking transfer body 12a and the end side of the stock-holding and conveying body 12b are arranged to be shifted in the left-right direction in plan view. Thereby, the posture of the grain rod can be changed from the standing state to the horizontal state.

The connecting mechanism 14 connects a guide body 14a, which is diagonally and curvedly stretched between the upper end of the right transmission case 15 of the pre-processing unit 2 and the case of the scraping device 9, to a front-end locking conveyance body. It is inserted into an arm 14b attached to the starting end side of 12a, and rotates the handling depth transport body 12 in the left and right direction in conjunction with the movement of the preprocessing unit 2 in the left and right direction.

[0008]

By the way, the handling depth transporter 12 is rotatably supported with its rear side as a fulcrum, and the attitude of the grain stick is changed from an upright state to a horizontal state, and the threshing unit is changed. Because it is arranged diagonally to transport it to 11,
When the pre-processing unit 2 is moved in the left-right direction with respect to the traveling body 1, the starting end of the handling-depth carrier 12 is largely lowered by one of the movements. However, there was a problem that it came into contact and destroyed it.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. Even if the position of the pre-processing unit is moved in the left-right direction with respect to the traveling machine body, the grain-rod transporting body is moved to the pre-processing unit. An object of the present invention is to provide a combine grain conveying device that is configured not to be brought into contact with the grain.

[0010]

Therefore, in order to achieve the above object, a combine grain transport device according to the present invention comprises a preprocessing unit (2) capable of moving left and right and up and down with respect to a traveling machine (1). A grain transporter (12) for lifting and transporting the grain rods cut by the pre-processing unit (2) to the threshing feed chain (11); and a fulcrum about the rear side of the grain rod transporter (12). A handle depth adjusting device (13) for vertically rotating the pestle transporter (12) and the pestle transporter (12) in conjunction with the left and right movement of the pre-processing unit (2). And a connecting mechanism (14) connected to rotate the pre-processing unit (2) in the left-right direction. The connecting mechanism (14) is connected via the connecting mechanism (14) regardless of the left-right movement of the pre-processing unit (2). In order that the height position on the starting end side of the grain rod transporter (12) is not changed, The contact position in the vertical direction changes between the lower surface of the carrier (12) and the preprocessing frame (5) that rotatably supports the preprocessing unit (2) in the vertical direction. A stopper (29) for setting a lower limit position of the rod carrier (12) with respect to the pre-processing portion (2) is provided.

[Operation] Based on the above structure, the height of the starting end of the grain transporter (12) connected via the connecting mechanism (14) regardless of the horizontal movement of the pre-processing unit (2). In order not to change the position, the vertical direction extends between the lower surface of the grain rod transporter (12) and the pre-processing frame (5) that supports the pre-processing unit (2) so as to be rotatable in the vertical direction. A stopper (29) is provided so that the contact position changes. The stopper (29) sets the lower limit position of the grain transporter (12) with respect to the pretreatment section (2).

Note that the reference numerals in parentheses described above are for comparing the drawings, and do not limit the configuration of the present invention in any way.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a side view showing a pre-processing unit of a combine,
FIG. 3 is a plan view showing a power transmission system for power to the pre-processing unit, and FIG. 4 is a plan view showing a grain stick conveying device. 1 to 4
In FIG. 5, the same components as those in FIG. In FIG. 1, a combine C has a pre-processing unit 2 at the front of the traveling body 1 so as to be vertically movable and horizontally movable with respect to the traveling body 1.

The traveling machine 1 includes a threshing unit 11 for threshing grains from the grain rods and for sorting the threshed grains, a grain tank 16 for storing the sorted grains, and discharging the threshed grain rods. It comprises a processing unit 17, a pair of left and right traveling crawlers 3, a driver's seat 18, and an operation unit 19 provided with various operation tools.

At the front of the traveling machine body 1, a tubular mowing drive case 4 extending in the left-right direction is provided.
As shown in FIG. 3, a mowing drive shaft 20 is rotatably provided in the mowing drive case 4, and the pre-processing unit 2 is rotatably supported. The mowing drive shaft 20 is configured to input power from a transmission (not shown) via an input pulley 21, and then transmit power from the shaft intermediate portion to the pre-processing unit 2 via a first bevel gear mechanism 22. And the second bevel gear mechanism 23 from the shaft end.
Is configured to transmit power to the handling depth transfer body 12 through the.

That is, the mowing drive shaft 20 is connected to a mowing power distribution shaft 25 provided in a mowing power distribution case 25 disposed in a lower rear portion of the pre-processing unit 2 via a mowing power transmission shaft 24 in a left-right direction. (Not shown). The mowing power distribution shaft transmits power to the raising device 8 via cylindrical raising brackets 26 (see FIG. 2) provided upright on both right and left ends of the mowing power distribution case 25, and also controls the mowing power. The power is transmitted from the intermediate take-out case portion 25 a provided at the intermediate portion of the distribution case 25 to the stock transfer device 10.

Further, in the mowing power distribution case 25, a plurality of divider supporting frames 27 extending forward are integrally assembled so as to serve also as a main frame of the preprocessing section 2.

Further, the preprocessing frame 5 extending below the front portion of the traveling machine body 1 has a base end integrally connected to the mowing drive case 4 and a parallel link mechanism 28 provided at the extending front end. Thus, the pre-processing unit 2 is supported so as to be movable left and right.

The parallel link mechanism 28 includes a link support frame 28a extending leftward and rightward at the end of the preprocessing frame 5, a pair of left and right link arms 28b attached to both ends of the link support frame 28a, and a reaper. And a power distribution case 25.

In addition, the height of the U-shaped pipe 12c on the starting end side of the handling depth transport body 12 connected via the connecting mechanism 14 changes regardless of the horizontal movement of the pre-processing unit 2. In order to prevent this, a vertical contact position changes between the lower surface of the handling depth transfer body 12 and the pre-processing frame 5 that supports the pre-processing unit 2 so as to be rotatable in the vertical direction. A stopper 29 is provided. In addition, the stopper 29 is provided with a stopper 29 for setting a lower limit position of the handling depth transport body 12 with respect to the preprocessing unit 2.

That is, the stopper 29 causes the mowing power transmission shaft 24 to move when the handling depth transport body 12 is lowered to a predetermined height or lower, or when the pre-processing unit 2 is raised to a predetermined height or higher. It comes into contact with the outer periphery of the transmission case 30 inside.
The arm 14b on the start end side of the handling depth transfer body 12 is inserted into a guide body 14a that is provided obliquely and curved between the right transmission case 15 and the case of the scraping device 9. Therefore, as the pre-processing unit 2 moves to the left, the starting end side of the handling depth transport body 12 suddenly descends, and the handling depth transport body 1
There is a possibility that the starting end side of 2 may come into contact with the case of the scraping device 9.

In order to prevent this, the stopper 29 is brought into contact with the outer periphery of the transmission case 30 so as to slide on the outer periphery of the transmission case 30 so as to prevent an extreme fluctuation on the starting end side of the handling depth conveying body 12.

In FIG. 3, reference numeral 31 denotes a connecting frame for supporting the upper side of the pre-processing unit 2 on the traveling body 1 side.
2 while being connected to be able to swing right and left through
The raising bracket 26 is provided to be slidable back and forth.

In FIG. 4, reference numeral 33b denotes a clamping guide which is disposed along the stock carrying chain 33a of the stock holding carrier 12b, and reference numeral 34a denotes a driving side of the tip locking carrier 12a and the stock holding carrier 12b. The sprocket 34b is a driven sprocket of the stock carrier 12b, and the tension roller 35 of the stock carrier 12b.

Next, the operation will be described.

The pre-processing unit 2 may be moved up and down or left and right when the traveling machine 1 is moved to the ridge or headland, or during the middle splitting work and the ridge cutting work. is there. At this time, the vertical movement of the pre-processing unit 2
This is performed by extending and lowering the pre-processing frame 5 having the lower front portion of the traveling body 1 as a base end by expanding and contracting the cylinder 6. For example, when the pre-processing unit 2 is raised to a predetermined height, the transmission case 30 comes into contact with the stopper 29, and the handling depth transport body 12 also rises with the rise of the pre-processing unit 2, so that the handling depth transport body 12 Is not in contact with the stock carrier 10.

On the other hand, the left and right movement of the preprocessing unit 2 is controlled by the operation unit 1.
This is performed by rotating the link arm 28b of the parallel link mechanism 28 to the left or right based on the command of the middle splitting work or the ridge cutting work in 9. By moving the pre-processing unit 2 in the right or left direction, the arm 14b on the starting end side of the handling depth transport body 12 slides along the guide body 14a, and the starting end side of the handling depth transport body 12 moves up and down. But,
When the handling depth carrier 12 is lowered by a predetermined height or more, the stopper 29 provided on the U-shaped pipe 12c comes into contact with the transmission case 30, and the starting end side of the handling depth carrier 12 is moved to the stock transfer device 10. Protection from the pre-processing unit 2.

Thus, regardless of the movement of the pre-processing unit 2 in the left-right direction, the handling depth transfer is performed such that the height position on the starting end side of the handling depth transfer body 12 connected via the connecting mechanism 14 does not change. A stopper 29 is provided in the transmission case 30 so that the contact position in the vertical direction changes between the lower surface of the body 12 and the pre-processing frame 5 that rotatably supports the pre-processing unit 2 in the vertical direction.
, And the stopper 29 sets the lower limit position of the handling depth transport body 12 with respect to the pre-processing unit 2.

When the handling depth transporter 12 is moved up and down, the handling depth is adjusted by the handling depth adjusting device 13 according to the length of the grain rod, and when the preprocessing unit 2 is moved up and down. In some cases, the start end side of the handling depth transfer body 12 is moved up and down in conjunction with the connection mechanism 14. That is, when the length of the pestle is short, the handling depth transport body 12 is lowered so that the handle is deeply handled. To rise.

[0031]

As is apparent from the above description, according to the present invention, the height position on the starting end side of the grain transporter connected via the connecting mechanism irrespective of the horizontal movement of the preprocessing unit. A stopper is provided so that the vertical contact position changes between the lower surface of the grain rod transporter and the pre-processing frame that supports the pre-processing unit so as to be rotatable in the vertical direction. Since the lower limit position of the cob carrier with respect to the pre-processing unit is set by the stopper, the cob carrier is moved to the pre-processing unit even when the position of the pre-processing unit is moved in the left-right direction with respect to the traveling body. Can not be abutted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a combine according to a first embodiment of the present invention.

FIG. 2 is a side view showing a pre-processing unit of the combine according to the first embodiment;

FIG. 3 is a plan view showing a power transmission system for power to a preprocessing unit according to the embodiment.

FIG. 4 is a plan view showing a grain rod conveying device.

FIG. 5 is a side view showing an example of a conventional pre-processing unit of a combine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 2 Pre-processing part 5 Pre-processing frame 11 Threshing part 12 Grain transporter (handle depth transporter) 13 Handling depth adjusting device 14 Connecting mechanism 29 Stopper

Claims (1)

[Claims] 1. A pre-processing unit capable of moving left and right and up and down with respect to a machine body, a grain transporter for lifting and transporting a grain cut by the pre-processing unit to a threshing feed chain, and a grain transporter A handle depth adjusting device for rotating the grain transporter in the vertical direction with the back side of the fulcrum as a fulcrum, and rotating the grain transporter in the horizontal direction in conjunction with the horizontal movement of the pre-processing unit And a coupling mechanism coupled so as to cause the pre-processing unit to move through the coupling mechanism regardless of the lateral movement of the pre-processing unit. In order not to change, the vertical abutment position changes between the lower surface of the grain rod transporter and the preprocessing frame that supports the pretreatment unit so as to be rotatable in the vertical direction. A stopper for setting a lower limit position of the carrier with respect to the preprocessing unit is provided, Koku桿 conveying apparatus Combine characterized and.