JP2591580Y2 - Combine grain stalk prevention structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing grain stalk displacement of a combine.

[0002]

2. Description of the Related Art Conventionally, as a form of a combine, an auxiliary transfer chain is arranged at a position approximately vertically above and below a feed end of a tip transfer tine and a vertical transfer chain, and is transported in an upright state by the auxiliary transfer chain. There is a type in which a coming culm is placed in an appropriate posture in a lying state and delivered to a feed chain.

[0003] Such an auxiliary transport chain transports a bundle of cereal stems by the action of scraping the cereal stems of the chain.

[0004]

However, as described above, in the auxiliary transport chain that scrapes and transports the bundle of cereal stems by the auxiliary transport chain as described above, the cereal culm layer close to the auxiliary transport chain and the cereal culm layer far from the auxiliary transport chain are different. , The action of the same chain scraping cereal stem is different,
When the number of cutting strips increases, the amount of cereal stalks to be conveyed also increases, so a large difference occurs in the action of scraping cereal stalks,
A shift (so-called culm shift) occurs between the cereal stalk layer near the auxiliary transport chain and the distant stalk layer, and the bundle of cereal stalks cannot be delivered to the feed chain in the proper posture.
There was a problem that threshing work while being transported by the feed chain could not be performed reliably.

[0005]

Therefore, according to the present invention, an auxiliary transfer chain for transferring a grain stalk to a feed chain in a proper posture at a height approximately vertically above and below a feed end portion of the tip transfer tine and the vertical transfer chain. In the combine where the auxiliary transport chain is attached, the grain stalk shift prevention body is attached to the auxiliary transport chain, and the grain stalk shift prevention body is substantially orthogonal to the grain stalk transport direction by the auxiliary transport chain in the rotation plane of the auxiliary transport chain. The distance between the bundle of grain stalks and the auxiliary transport chain is adjusted by interlocking with the advance and retreat of the cereal stem displacement prevention body in the direction in which It is an object of the present invention to provide a structure for preventing a shift in grain culm of a combine, wherein the structure can be changed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show a combine A having a grain stalk shift preventing body 50 according to the present invention, wherein 1 is a track frame on which a traveling crawler 2 is mounted, and 3 is a track frame on the track frame 1. A machine base to be erected, 4 is a threshing unit which stretches the feed chain 5 to the left side and has a built-in handling cylinder 6 and a processing cylinder 7, 8 is a mowing unit provided with a cutting blade and a grain culm transport mechanism,
9 is a straw processing unit which faces the end of the straw chains 10 and 11; 12 is a cab provided with a driver's seat 13 and a driving operation unit 14; 15 is a kernel from the threshing unit 4 through a fryer 16 A grain tank to be stored, 17 is an upper discharge auger for taking out the grains in the grain tank 15 outside the machine, and 18 is an engine for driving each part of the combine, which is configured to continuously perform harvesting and threshing work. ing.

[0008] As shown in Figs.
A three-row raising case 21 having a raising tine 20 for raising an uncut grain culm taken up by a weeding board 19, and a star wheel for scraping the culm base side and the tip side of the raised grain culm.
22, a scraping belt 23, a cutting blade 24 for cutting the stem side at the time of scraping, and a right stem root transport chain 25 for transporting the rod side of one grain of the right stem after the cutting diagonally to the left rearward. And the right ear tip transfer tine 26 that transfers the tip side of the grain culm of the right one row toward the feeding start end direction of the feed chain 5 on the left diagonally rear, and the culm base side and the tip side of the grain culm of the left two rows. Left culm base transfer chain that merges near the feed end position of the right culm base transfer chain 25 diagonally right behind
27 and right ear tip transfer tine 28 and the right culm base transfer chain 25
A vertical transport chain that transfers and inherits the culm side of the three-row grain culm that joins the feed end of the feed chain 5 to the feed start end of the feed chain 5
29, the right ear tip transfer tine 26 and an auxiliary transfer chain 30 that is provided at an approximately middle height position above and below the feed end of the vertical transfer chain 29, and allows the feed chain 5 to inherit the grain stalk in an appropriate posture, The harvested grain culm for three rows is passed on to the feed chain 5 via the Y-shaped transport path 31 to perform threshing.

The vertical transport chain 29 allows the cutting main frame 32 to support the feed start end via a transmission case 33 and the feed end side to be vertically movable so as to adjust the handling depth of the grain culm. As shown in FIGS. 5 and 6, the vertical transport chain 29 includes a clamping guide 34 for clamping and transporting the grain culm, and a chain support frame 35 of the vertical transport chain 29.
The pinching guide 34 is connected and supported via a U-shaped arm 36 and a guide holder 37.

The guide holder 37 is formed in a gate-shaped cross section. The center of the inner surface of the holder 37 is connected to the arm 36, and the guide rod 38 of the guide 34 is attached to both ends of the holder 37 by a compression spring 39. It is supported so as to be able to retreat freely via.

In the chain support frame 35, the transmission case 33 having the driving sprocket 40 of the vertical transport chain 29 on the feed start end side is fixedly mounted via bolts 41,
A roller support frame 43 that supports the tension roller 42 is slidably fitted and supported on the feed end side.

An arm mounting case 44 is fixed to the outside of the feed end side of the chain support frame 35, and the base end of the arm 36 is inserted and fixed to the case 44, and the roller support frame 43 is fixed. Tension roller adjustment rod, which is a tension support frame for fixing the adjustment screw shaft 45 to the
46 is slidably supported by the case 44, a compression spring 48 is interposed between the spring washer 47 of the rod 46 and the inner surface of the case 44, and the vertical transport chain 29 is moved by the spring force of the spring 48. It is structured to be nervous.

In the configuration described above, the gist of the present invention is that the body 50 for preventing grain stalk displacement is placed on the upper cover 30a of the auxiliary transport chain 30 in the direction substantially perpendicular to the grain culm transport direction of the auxiliary transport chain 30. Since it is mounted so as to be adjustable, a description will be given below with reference to FIGS.

That is, the grain stalk deviation preventing body 50 is formed in a substantially rectangular plate shape, and an advance / retreat drive motor M is interlockedly connected to the grain stalk deviation preventing body 50 via an advance / retreat position adjusting mechanism 51.

The advance / retreat position adjusting mechanism 51 has a support bracket 58 attached to the upper cover 30a of the auxiliary transport chain 30, and a screw 52 is slidably mounted on the support bracket 58 so as to be able to slide forward and backward. On the other hand, a pinion gear 53 is screwed in the middle of the screw rod 52, and an output gear 55 attached to the tip of the output shaft 54 of the advance / retreat drive motor M is engaged with the pinion gear 53. And pinion gear
A case 56 surrounds the motor 53, the forward / backward drive motor M, the output shaft 54, and the output gear 55. 30b is the lower cover, 30c is the sprocket, 30d is the sprocket spindle, 57
Is a guide pin.

As shown in FIGS. 5 and 6, the guide rod 38 is provided with a sensor 56 for detecting the amount of grain transported, and the sensor 56 can detect the amount of grain transported to the auxiliary transport chain 30. And

Further, the sensor 56 for detecting the amount of transported culm is shown in FIG.
As shown in the figure, the control unit 57 is connected to the input side of the control unit 57 disposed on the cab 12 and the output side of the control unit 57 is connected to
Are connected.

In this manner, the transported grain culm amount detection sensor 56
Detects the transported grain culm amount, outputs the detection result to the control unit 57, and the control unit 57 outputs a signal to the advance / retreat drive motor M based on the detection result from the sensor 56, and controls the motor M By driving, the advance / retreat position of the grain stalk displacement prevention body 50 can be adjusted via the advance / retreat position adjusting mechanism 51.

The advance / retreat position of the grain stalk shift preventing body 50 is adjusted by moving the grain stalk misalignment preventive body 50 by the forward / back drive motor M when the transported grain stalk amount detected by the transported grain stalk amount detection sensor 56 is large. By adjusting the position in the advance direction, the distance between the auxiliary transport chain 30 and the cereal culm is increased by the cereal culm misalignment preventing body 50, and the cereal stalk scraping action by the auxiliary transport chain 30 on the bundle of cereal culm is reduced. Thus, the occurrence of so-called culm shift is prevented, and the bundle of grain culm can be delivered to the feed chain 5 in an appropriate posture.

When the transported grain culm amount detected by the transported grain culm amount detection sensor 56 is small, the grain culm displacement preventing body 50 is adjusted in the backward direction by the forward / backward drive motor M to prevent the grain culm displacement. The body 50 reduces the interval between the auxiliary transport chain 30 and the grain culm, increases the cereal stem scraping action by the auxiliary transport chain 30, prevents poor grain culm scraping, and prevents the occurrence of so-called stalk spillage. The bundle of culms can be delivered to the feed chain 5 smoothly and in an appropriate posture.

In addition, the grain stem displacement preventing body 50 according to the present invention is provided.
Has a function of preventing the cereal stem from winding around the auxiliary transport chain 30.

[0022]

According to the present invention, the following effects can be obtained.

That is, according to the present invention, the auxiliary transport chain is provided with a grain stalk shift preventing body which is adjustable in the reciprocating position in a direction substantially perpendicular to the direction of transport of the auxiliary transport chain. If there is a lot, adjust the position in the advancing direction, increase the distance between the auxiliary transport chain and the cereal stem by the same grain culm shift prevention body, and use the auxiliary transport chain By reducing the size, it is possible to prevent the occurrence of so-called culm deviation, and to transfer the bundle of cereal culms to the feed chain in an appropriate posture.

When the amount of the transported grain culm is small, on the contrary, the position of the grain stalk deviation preventing body is adjusted in the retreating direction, so that the auxiliary transport chain and the grain culm can be moved by the grain stalk deviation preventing body. By reducing the interval, the action of the auxiliary transport chain to increase the grain stalk scraping action to prevent poor grain stalk scraping, so-called stick spillage, to smooth the grain stalk bundle and to maintain a proper posture Can be delivered to the feed chain.

Therefore, regardless of the amount of grain transported,
The threshing work efficiency of the cereal stem, which is the subsequent work, can also be secured well.

[Brief description of the drawings]

FIG. 1 is a side view of a combine provided with a grain stalk shift preventing body structure according to the present invention.

FIG. 2 is a plan view of the combine.

FIG. 3 is a drive explanatory diagram of a mowing unit.

FIG. 4 is an enlarged side view of the reaper.

FIG. 5 is an explanatory plan view of a vertical transport chain.

FIG. 6 is a sectional rear view of the vertical transport chain.

FIG. 7 is an explanatory side sectional view of a grain stalk shift preventing body structure.

FIG. 8 is an explanatory plan view of the grain stem displacement prevention structure.

[Explanation of symbols]

 A Combine 5 Feed chain 25 Right culm transfer chain 26 Right ear transfer chain 27 Left culm transfer chain 28 Right culm transfer tine 29 Vertical transfer chain 30 Auxiliary transfer chain 50

Claims (1)

(57) [Scope of request for utility model registration] An auxiliary transport chain, comprising: an auxiliary transport chain for transferring a grain stalk to a feed chain in an appropriate posture at a position approximately vertically above and below a feed end portion of an ear transport tine and a vertical transport chain. in conjunction with mounting the culms shift prevention member, the culms displacement prevention member, the rotary plane smell of the auxiliary conveyor chain
Te, as movable forward and backward position adjustment in the direction of grain稈搬feeding direction substantially perpendicular according to the auxiliary conveying chain, advances in the culms displacement prevention member
In conjunction with the retreating movement, between the grain stalk bundle and the auxiliary transport chain
Adjusting the gap, the force of scraping the cereal stem by the auxiliary transport chain
The structure of a combine grain stalk-prevention body, characterized in that it can be changed .