JPH11146722A - Grain culm carrying system in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject system so designed that reaped grain culms are ensured not to run off the carrying route when these grain culms are to be carried from behind the raiser toward a threshing depth carrier. SOLUTION: A combine harvester involving this system has a pretreatment section movable both transversely and vertically relative to a machine body, a threshing depth carrier for liftingly carrying grain culms reaped by the pretreatment section backward, and a link mechanism through which the threshing depth carrier is linked so as to be transversely turned interlockingly with the transverse movement of the pretreatment section; the link mechanism, in turn, has a support member 14c set up extendedly from the threshing depth carrier and a connective rod 14b set up vertically on the pretreatment section and slidable on a carrying support guide 14a; and a grain culm guide 39 is extended from the machine body tip side of the connective rod 14b toward the initial end side of the threshing depth carrier, grain culms are guided in the carrying direction by the grain culm guide 39, thus there is no concern that the grain culms run off the carrying route.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As is well known, a combine includes a pretreatment unit 2 having a cutting blade (not shown) for cutting a culm 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 in order to separate the left traveling crawler 3 from the uncut kernel as much as possible. (A position protruding to the left from the traveling machine body), and in the middle split operation traveling in an uncut area, the pre-processing unit 2 prevents the right traveling crawler (not shown) from stepping down the uncut grain culm. 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 has a mowing drive shaft (not shown) rotatably mounted therein and supports the pre-processing unit 2 so as to be rotatable up and down. This mowing drive shaft inputs power from a transmission (not shown) via an input pulley (not shown), and then transmits power from the intermediate portion of the shaft to the pre-processing unit 2 via a first bevel gear mechanism (not shown). Power is transmitted from the shaft end to a handling depth transfer device 36 as a grain culm transfer 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 comprises a divider 7 for weeding uncut culms, a raising device 8 for causing weeded culms,
A scraping device 9 for scraping the stem side of the grain stalk, a cutting blade (not shown) for cutting the stem of the grain stem stalked, a star wheel for transporting the grain stalk to the back while collecting the stem, and a transport. The feeder conveying device 10 having a feed chain, a threshing feed chain 11a with a threshing feed chain 11a while holding the position appropriately in order to change the handling depth of the grain culm, and changing the posture of the standing grain culm to a horizontal state. And the like are provided.

[0006] The grain rod transport device 36 includes a handling depth transporter 1.
2 and a handling depth adjusting device 13 for driving the handling depth transport body 12 to rotate in the vertical direction with the rear side of the handling depth transport body 12 as a fulcrum.
And a coupling mechanism 14 coupled to rotate the handling depth transport body 12 in the left-right direction in conjunction with the left-right movement of the pre-processing unit 2.

[0007] The handling depth carrier 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 culm. In addition, the handling depth transport body 1
The second U-shaped pipe 12c is bent in a U-shape so as to straddle over the tip anchoring and transporting body 12a, so that the tip of the cereal stem does not abut.

[0008]

By the way, conventionally, in order to transfer the grain stalks mowed in the pre-processing section 2 to the handling depth transporter 12, the handling depth transporter 1 is provided from behind the raising device 8.
2 is provided, but a handling depth transport body 1 is provided.
2 is supported rotatably in the left-right direction with its rear side as a fulcrum, and the position of the starting end of the handling depth transfer body 12 changes according to the left-right movement position of the preprocessing unit 2 with respect to the traveling body 1. Therefore, depending on the moving position of the pre-processing unit 2, a large gap is generated between the handling depth transporter 12 and the approaching plate 37, and the grain stalks deviate to the non-operating side of the handling depth transporter 12 to remove the grain. There was a problem that stalks of the culm and transport disturbance occurred.

The present invention has been made in order to solve such a problem, and an object of the present invention is to prevent a cut culm from coming off a non-working side of a cereal rod transporter and to prevent the culm from coming off the rear of the apparatus. An object of the present invention is to provide a combine grain rod transporting device that can reliably transport a transport to a handling depth transporter.

[0010]

Therefore, in order to achieve the above object, the invention described in claim 1 comprises a pre-processing unit (2) movable left and right and up and down with respect to the body (1); A grain culm carrier (12) that lifts and conveys the grain culm cut by the processing unit (2) to the threshing feed chain (11a);
A handling depth adjusting device (1) that rotates the grain culm carrier (12) in the vertical direction with the rear side of the grain culm carrier (12) as a fulcrum.
3) and a coupling mechanism (14) that is coupled to rotate the cereal culm carrier (12) in the left-right direction in conjunction with the left-right movement of the pre-processing unit (2). C), the connecting mechanism (14) is supported by the support member (14c) extending from the grain culm carrier (12) and the support member (14c) so as to be slidable in the longitudinal direction, and A connecting member (14b) slidably fitted in a transport support guide (14a) extending downward from one side in the left-right direction of the preprocessing unit (2). At the longitudinal end of the connecting member (14b), a cereal guide guide (39) is provided extending from the distal end toward the start end of the cereal culm transporter (12).

According to a second aspect of the present invention, the grain culm carrier (12) clamps a head of the grain culm with a spike carrier (12a) that locks and conveys the head of the grain culm. And a stock carrier (12b) for carrying the culm guide.
The terminal end of (9) is located inside the tip trajectory of the transport claw (40) provided on the tip carrier (12a) and above the transport claw (40).

[0012] In the invention described in claim 3, the support member (14c) extended from the cereal culm carrier (12) includes:
It is characterized in that it is provided at a lower portion of the tip carrier (12a).

According to a fourth aspect of the present invention, the end surface of the support member (14c) on the distal end side of the connecting member (14b) is moved from the distal end side of the connecting member (14b) to the front end carrier (12a). It is characterized in that it is formed on an inclined surface inclined toward the starting end.

According to the present invention, based on the above-described configuration, according to the present invention, the cereal culm carrier () is connected via the connecting mechanism (14) in accordance with the left-right movement position of the pretreatment unit (2). 1
The position of the starting end of 2) changes, and depending on the moving position of the pre-processing unit (2), a large gap is generated between the grain transporter (12) and the shift plate (37). Grain stalk guide (14) provided at the longitudinal end of 14b)
However, since the stalk is extended from the front end portion toward the start end of the cereal rod transporter (12), the cereal stalk is guided by the cereal stalk guide (3).
9) is guided in the transport direction, and the cereal rod is
There is no danger of falling off to the non-working side of 2) or causing turbulence in conveyance.

Note that the reference numerals in parentheses described above are for the purpose of comparing the drawings, and do not limit the invention-specifying matters of the present invention.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The same members as those in the above-described conventional example are denoted by the same reference numerals, and redundant description will be omitted.

In FIG. 1, the combine C has a pre-processing unit 2 at the front part of the traveling body 1, which is movable vertically and horizontally with respect to the traveling body 1. The traveling machine 1 is supported by a pair of right and left crawler traveling devices 3 and 3, and threshing unit 11 for threshing the harvested culm and sorting the threshed kernel.
It has a grain tank 16 for storing the sorted grains, a post-processing unit 17 for discharging threshed culms, a driver's seat 18 and a driving operation unit 19.

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.
The cutting drive shaft 20 supports the pre-processing unit 2 rotatably in the vertical direction. Power is input to the mowing drive shaft 20 from a transmission (not shown) via an input pulley 21, and then from a shaft intermediate portion via a first bevel gear mechanism 22 to a pre-processing portion 2.
And the power is transmitted from the shaft end to the handling depth transfer body 12 via the second bevel gear mechanism 23.

That is, the mowing drive shaft 20 is connected to a mowing power distribution shaft 25 (see FIG. 1) which is provided in a lower portion of the rear part of the pre-processing section 2 via a mowing power transmission shaft 24 in a lateral 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 pre-processing section 2.

Further, a pre-processing 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 2 connected to the extending front end.
8 to support the preprocessing unit 2 so as to be movable left and right.
The parallel link mechanism 28 includes a link support frame 28a extending to the front end of the preprocessing frame 5 in the left and right direction, a pair of left and right link arms 28b attached to both ends of the link support frame 28a, and a cutting power distribution case. 2
5 is provided.

The handling-depth transport body 12 is a U-shaped body for integrally fixing the tip-locking transport body 12a and the stock-holding transport body 12b.
The coupling mechanism 14 includes a pre-processing unit 2
Are connected so as to rotate the handling depth transport body 12 in the left-right direction in conjunction with the movement in the left-right direction. In addition, the handling depth transport body 12 is disposed such that the width direction is inclined at a predetermined angle with respect to the field scene, and the starting end side of the head-locking transport body 12a in the grain culm transport direction and the stock-holding transport. The starting end side of the body 12b overlaps in a plan view, and the terminal end side of the tip-locking transfer body 12a and the terminal end side of the stock-holding transfer body 12b are arranged to be shifted in the left-right direction in a plan view. Thereby, the posture of the cereal stem can be changed from the standing state to the horizontal state.

In the above embodiment, in the present embodiment, the connecting mechanism 14 is supported by the support member extending from the grain culm carrier 12 and slidably supported in the longitudinal direction by the support member. And a connecting member slidably fitted in a transport support guide extending downward from one side in the left-right direction of the processing unit 2.

That is, as shown in FIGS. 2 and 4, the connecting mechanism 14 has a support member 14c extending from the starting end side of the tip locking transporting body 12a toward the front of the fuselage. The support member 14c has an arm portion 41 and a support portion 42. The arm portion 41 has a base portion attached to a lower portion on the starting end side of the tip-locking carrier 12a, and a connecting rod 14b as a connecting member is slidably fitted in the support portion 42 in the axial direction. Supported.

The arm portion 41 of the support member 14c
As shown in FIG. 4, the end face of the connecting rod 14b at the tip end in the axial direction is inclined from the tip end side of the connecting rod 14b toward the start end side of the tip locking carrier 12a.
1a. Due to the inclined surface 41a, when the harvested grain rod is raised and conveyed from the rear part of the device 8 toward the spike engaging conveyance body 12a, it is smoothly guided.

Further, between the upper end of the right transmission case 15 of the pre-processing unit 2 and the case of the scraping device 9, a transport support guide 14a is extended in the vertical direction. The connecting rod 14b is slidably fitted in a hole 38a formed in the tip tongue 38.

Thus, the connecting rod 14b is slidable back and forth in the axial direction by the support portion 42 and vertically slidable along the transport support guide 14a. When the pre-processing unit 2 moves in the left-right direction, the handling depth conveyance body 12 rotates in the left-right direction in conjunction with the pre-processing unit 2 by the conveyance support guide 14a.

In the present embodiment, a grain stalk guide 39 extends from the tip of the connecting rod 14b in the longitudinal direction toward the starting end of the grain transporter 12.

That is, as shown in FIG. 4, a grain culm guide 39 extends from the side wall on the distal end side of the connecting rod 14b. Is provided toward the inside of the leading end trajectory P of the transfer claw 40. Further, as shown in FIG. 2, the end of the grain stalk guide 39 is provided so as to be located above the transport claw 40.

In the U-shaped pipe 12c, the height position on the starting end side of the handling depth conveying 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 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 provided 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 is moved up and down or left and right when the traveling machine 1 is moved to a ridge or a headland, or when a middle splitting operation and a ridge cutting operation are performed. 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. When the preprocessing unit 2 is moved in either the left or right direction, the transport support guide 1
4a, the handling depth transport body 12 also rotates in conjunction with this, and the connecting rod 14b on the starting end side of the handling depth transport body 12
Slides along the transport support guide 14a, and the starting end side of the handling depth transport body 12 moves up and down.

When the pre-processing unit 2 moves in the same direction as the pre-processing unit 2 moves in the left-right direction, depending on the turning position of the pre-processing unit 2, the pre-processing unit 2 and the handling device 8 are raised. A gap may be formed between the pulling plate 37 provided at the rear of the conveyor and the gap may cause the grain stick to come off on the non-operating side of the handling depth transport body 12.

However, even in such a case, the cereal stalk guide 39 extended from the distal end of the connecting rod 14b in the axial direction toward the starting end of the handling depth transporter 12 is used.
The grain stick is smoothly transported without coming off the non-operating side of the handling depth transport body 12.

[0038]

According to the first aspect of the present invention, when the cereal stalks cut by the pre-processing unit are transferred to the cereal stalk transporter by the stalk guide, the non-working side of the cereal stalk transporter is used. The culm can be smoothly transported without the culm coming off. Further, based on the movement of the pre-processing unit in the left-right direction, the positional relationship between the pre-processing unit and the starting end of the cereal culm carrier is different, so that the gap between the pulling plate and the cereal culm carrier provided behind the raising device Even if a gap occurs, the grain stalk guide can reliably transfer the grain stalk to the grain stalk transporter.

According to the second aspect of the present invention, the cereal culm guide can reliably hold the cereal culm up to the position above the tip conveying claw, so that the cereal stem does not come off from the tip conveying claw, and the raising device is provided. The culm can be smoothly transferred from behind the culm toward the culm carrier.

According to the third aspect of the present invention, the supporting member is provided at the lower part of the spike carrier, which is caused by the movement of the pre-processing unit in the left-right direction, and the shift plate and the grain culm carrier provided at the rear of the apparatus. Even if there is a gap between them, it is possible to eliminate cereal stalks coming off the spike carrier nails.

According to the fourth aspect of the present invention, even if there is a clearance between the grain culm carrier and the raising plate at the rear of the raising device based on the left-right movement of the pre-processing unit, the support member is not moved. By forming the end surface on the tip side on an inclined surface that is inclined from the tip side toward the starting end side of the spike carrier, the cereal culm is adjusted so that the culm does not come off from the rear of the raising device toward the cereal culm carrier. Can be relayed.

[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 the grain culm 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 machine body 2 Pre-processing part 12 Grain culm carrier (depth-conveying body) 12a Ear locking carrier 12b Stock holding carrier 14 Connecting mechanism 14a Transport support guide 14b Connecting rod 14c Supporting member 37 Approaching plate 38 Tongue 39 Guinea guide guide 40 Conveyor claw 41 Arm part 41a Inclined surface 42 Support part

Claims (4)

[Claims] 1. A pre-processing unit capable of moving left and right and up and down with respect to a machine body, a cereal culm conveyance unit for lifting and conveying a culm cut by the pre-processing unit to a threshing feed chain, and a cereal culm conveyance unit A handle depth adjustment device that rotates the grain culm carrier vertically, with the back side of the fulcrum as a fulcrum, and pivots the grain culm carrier horizontally in conjunction with the left-right movement of the pre-processing unit. And a connecting mechanism that is connected so as to cause the connecting mechanism to be supported by the support member extending from the grain culm carrier, and slidably supported in the longitudinal direction by the supporting member, and A connecting member slidably fitted in a transport support guide extending downward from one side in the left-right direction of the pre-processing unit, and a longitudinal end of the connecting member, Grains extended from the tip toward the beginning of the grain culm carrier Provided guides, culms conveying apparatus combine, characterized in that. 2. The grain culm carrier has a spike carrier that locks and transports a spike portion of a grain culm, and a stock carrier that sandwiches and transports a stem of a grain culm. The grain of the combine according to claim 1, wherein an end portion of the cereal culm guide is located inside the tip trajectory of the transport claw provided on the ear tip transport body and above the transport claw. A culm conveying device. 3. The grain culm conveying device of a combine according to claim 1, wherein said support member extended from said cereal culm carrier is provided at a lower portion of said ear tip carrier. 4. An end surface of the support member on the distal end side of the connecting member is formed as an inclined surface that is inclined from the distal end side of the connecting member toward the start end side of the spike carrier. Item 1. A combine grain conveying device according to Item 1 or 2.