JP2001095356A - Threshing depth carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothen the transport of grain straws to a threshing depth carrying device in a combine harvester in which a pre-treating device is laterally slid. SOLUTION: In a combine harvester in which a pre-treating device B is laterally slid, the starting end side of the nipping and holding guide 37 of a threshing depth carrying device 7 is extended to the back portion of a left side raising device 15a. The starting end side of the nipping and holding guide 37 is connected to a vertical guide rod 21 disposed on the back portion of the left side raising device 15a. The guide rod 21 is disposed on the back side of a collecting plate 26 disposed in the rear portion of the left side raising device 15a. The nipping and holding guide 37 is connected to the guide rod 21 through an arm 24, and the starting end side of the nipping and holding guide 37 is strechably inserted into a cylindrical portion 25 of the arm 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine-depth transfer device in which a pre-processing device slides in the left-right direction.

[0002]

2. Description of the Related Art Conventionally, in a combine in which a pretreatment device slides in the left-right direction, Japanese Unexamined Patent Publication No.
As described in Japanese Patent Application Laid-Open Publication No. H10-115, there is a gap between a gripping guide opposed to a handling depth transporter that rotates at a rear fulcrum provided on the side of the preprocessing unit and a raising device in front of the gripping guide.

[0003]

In a conventional combine, such as a middle splitting operation or a ridge cutting operation, when the pre-processing device is moved to the left or right, the pre-processing device and the subsequent handling depth transporter are moved. Due to the movement of the positional relationship described above, the transfer of the transported cereal stalks is not smooth, and problems such as the occurrence of cereal stalk leakage from the gap and the occurrence of turbulent transport of the cereal stalks have occurred. An object of the present invention is to improve the above-mentioned conventional problems.

[0004]

In order to achieve the above object, according to the present invention, a preprocessing device B having a pair of right and left raising devices 15 and the like slides in the left and right direction. A handling depth transport body 31 that rotates vertically and horizontally at a rear fulcrum is provided at the rear, and the starting end side of the nipping guide 37 opposed to the handling depth transport body 31 is a left elevating device in front of the gripping guide 37. The first feature is that it extends to the back of 15a. A vertical guide rod 21 is provided on the back of the left raising device 15a.
The second feature is that the starting end side of the is connected to and supported by the guide rod 21 so as to be vertically slidable. Further, a shift plate 26 is provided at the rear of the left raising device 15a, and the guide rod 21 is
A third feature is that the plate 26 is provided in front of the rear end 26a of the plate 26 in a side view and at a position behind the plate 26 in a plan view. Further, the starting end side of the pinching guide 37 is connected to and supported by the guide rod 21 via the arm 24, and
The rear cylindrical portion 25 is formed in a hollow shape, and the starting end side of the pinching guide 37 is inserted into the hollow portion so as to extend and contract.
The feature of.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view of a combine according to the present invention. Similar to a normal combine, 1 is a traveling body of the combine, 2 is a pre-processing unit provided at a front portion of the traveling body 1, and 3 is a side part thereof. The provided operation operation unit, 4 is a threshing unit provided at the rear, 5 is a paddy processing unit, and 6 is a traveling unit provided at the bottom.

FIG. 2 is a side view showing a pre-processing part of the combine, and FIG. 3 is a side view showing a main part of the same. The mowing drive case 11 is provided. The mowing drive case 11 has a mowing drive shaft (not shown) rotatably housed therein and supports the pre-processing unit 2 rotatably up and down. . The mowing drive shaft is configured to receive power from a transmission (not shown) via an input pulley (not shown) and transmit the power to the preprocessing unit 2. Reference numeral 12 denotes a pre-processing frame extending below the front part of the traveling machine body 1, a base end part of which is integrally connected to the mowing drive case 11, and a middle part thereof being subjected to pre-processing by expansion and contraction of a cylinder 13. The entire part 2 is configured to rotate up and down.

Reference numeral 14 denotes a divider provided at the end of the pre-processing unit 2, and reference numeral 15 denotes a pair of right and left raising devices for raising the grain stems weeded by the divider 14. Inside, a chain with claws is provided similarly to a normal combine, and the grain stalk squeezed between the two raising devices 15 is combed diagonally upward by the chains on both sides. 16 is a scraping device, 17 is a stock transfer device, 18 is a raising device 1
A transmission case 19 provided on the upper back portion of the bracket 5 is a raising bracket provided from a lower portion thereof toward the lower pre-processing transmission shaft 20. Transmission shaft for power transmission
Power is transmitted to the raising device 15 side. 20a is a cutting blade.

A parallel link mechanism A is provided at the lower end of the pre-processing frame 12, and a pre-processing device B located in front of and above the pre-processing apparatus B is connected to the left and right parallel sides of the lower end of the pre-processing frame 12. It is supported so that it can slide (swing) freely in the left and right direction with the link as a fulcrum.

FIG. 4 is a plan view of a main part of the pre-processing unit 2. In FIGS. 2 to 4, reference numeral 21 denotes a guide rod, which is provided between the raising device 15 and a handling depth conveying device 7 described later. Between,
The upper part is attached to a mounting piece 22 extending forward from the raising bracket 19, and the lower part is oblique and curved in a side view and rises upward from the scraping device 16, and as shown in FIG. , Provided on the back of the left raising device 15a. An arm 24 with a hole 23 is fitted into the middle of the guide rod 2 and the arm 24 is
1 so as to be rotatable and slidable up and down. Further, the arm 24 has a hollow cylindrical portion 25 facing rearward, and a distal end side of a later-described clamping guide 37 is inserted into the hollow portion of the cylindrical portion 25 so as to be extendable and contractible.

Reference numeral 26 denotes a plate for guiding the harvested grain culm to the rear side, and the shape thereof is, as shown in FIGS. 2 to 4, the inside of the left raising device 15 in a side view (the grain culm passage side). The rear end 26a extends along the guide rod 21 and extends slightly to the rear, and the lower end extends downward to the vicinity of the raking device 16. It is provided on the front side (grain culm passage side) of the guide rod 21, so that the cereal culm during cutting and transport does not directly contact the guide rod 21. 27 is a divider 14 at the tip.
It is a frame that supports.

Next, a description will be given of the handling depth transfer device 7 provided on the side of the pre-processing unit 2. The handling depth transfer device 7 is supported by the cutting drive case 11 so as to be vertically rotatable. And a handle-depth carrier 31 having a U-shaped pipe 34 for integrally affixing the tip-locking carrier 32 and the stock-holding carrier 33 in the same manner as described above. A handling depth adjusting device 35 that rotates vertically about the mowing drive case 11 as a fulcrum, and a pinch that is mounted on the U-shaped pipe 34 so as to be opposed to the stock transfer chain 36 and that holds the transported grain culm therebetween. A striking guide 37 is provided. The starting end side of the striking guide 37 extends to the back of the left-side elevating device 15a in front of the guide 37, and is inserted into the cylindrical portion 25 of the arm 24 so as to be extendable and contractible. The handling depth transport device 7 is also configured to be rotatable in the left-right direction about a rear drive shaft 44a described later as a fulcrum.

As described above, the starting end of the clamping guide 37 is connected and supported by the guide rod 21 fixed to the pre-processing device B via the arm 24. When slid, the handling depth transport device 7 rotates right and left around the rear drive shaft 44a as a fulcrum, and also moves the handling depth transport device 7 according to the length of the cutting culm. When the rotation is adjusted up and down with the fulcrum 11 as the fulcrum, the starting end of the pinching guide 37 slides up and down along the guide rod 21 while being constantly connected to the guide rod 21 via the arm 24. That is, even if the handling depth transfer device 7 is adjusted up and down, or the pre-processing device B is slid in the left-right direction, the pre-processing device B and the handling depth transfer device 7 are always in a connected state, A gap is hardly generated between the two, and the transfer of the grain stalk at this portion is always smooth, and there is no occurrence of grain stalk leakage or transport disturbance as in the related art.

In FIG. 2, reference numeral 41 denotes a connecting frame for supporting the upper side of the pre-processing device B with the traveling machine body 1. The base end of the connecting frame 41 has a support shaft 42 attached to the cutting drive case 11. The front end is slidably movable back and forth on the bracket 19 while being pivotably connected to the left and right through the bracket. Reference numeral 43 denotes a transmission case, in which a transmission shaft for transmitting power to each part of the pretreatment device B described above is provided. Reference numeral 46 denotes a stopper for setting a lower limit position of the handling depth transport body 31 with respect to the pre-processing unit 2, and when the handling depth transport body 31 is lowered to a predetermined height or less,
Alternatively, when the pre-processing unit 2 is raised to a predetermined height or more, the outer periphery of the transmission case 43 is slid so as to abut, so as to prevent an extreme fluctuation on the starting end side of the handling depth transport body 31. I have. Further, in FIG. 4, reference numeral 44 a denotes a drive shaft of the tip-locking carrier 32 and the stock-holding / conveying body 33, 44 b denotes a driven sprocket of the stock-holding / conveying body 33, and 45 denotes a stock-holding / conveying body 33.
Is a tension roller.

Next, the operation of the present invention will be described. In performing harvesting and harvesting work with a combine, each section is driven, and firstly, the pre-processing section 2 is vertically moved and adjusted according to the field and crop conditions, and the grain is harvested. The harvesting operation is performed after the pretreatment device B is slid in the left-right direction in accordance with the piloerection of the culm so that the leading end of the divider 14 is located between the grain culm strips.
At this time, the grain stalk is scraped, combed, cut,
Due to the transport action, the plate 26 and the subsequent banding guide 3
While being guided and supported by 7, the base of the stock is clamped between the banding guide 37 and the handling depth carrier 31, and the tip side is not illustrated as the tip locking carrier 32, but the tip side faces the The handling depth is adjusted while being guided by a guide rod that guides and supports so as not to disperse, and is conveyed into the threshing unit 4 behind.

At this time, it is necessary to slide the pre-processing device B in the left-right direction for middle splitting work, ridge cutting, and the like. In the case of the present invention, the starting end of the pinching guide 37 is raised to the left in front of it. Since the guide rod 21 is extended to the back of the device 15a and the guide rod 21 and the pinching guide 37 are always connected via the arm 24, the handling depth transfer device 7 can be adjusted up and down, and the pretreatment device can be adjusted. Even if B is slid in the left-right direction, a gap is hardly generated between the handling depth conveying device 7 and the pre-processing device B, and the cereal culm is always smoothly transferred, causing cereal stalk leakage or conveyance. Disturbance does not occur.

Further, since the guide rod 21 is provided slightly forward of the rear end 26a of the parquet plate 26 in a side view and at the back side of the parquet board 26 in a plan view, the culm being harvested and conveyed is guided by the guide rod 21. There is no possibility that the culm during transportation is disturbed due to contact with 21 and clogging of the transportation is caused, or the grain is shed. Further, the starting end side of the pinching guide 37 is inserted into the tubular portion 25 on the rear side of the arm 24 so as to be extendable and contractible.
That can always follow the change in the positional relationship due to the adjustment of the handling depth due to the movement and the slide adjustment of the pre-processing device B in the left and right direction, and can maintain the effect that the guide rod 21 and the pinching guide 37 are always linked via the arm 24. It is.

Next, in the above embodiment, the guide rod 2
Although the one in which the banding guide 37 linked to 1 is provided on the side of the stock transfer chain 36 is shown, the banding guide 37 of this embodiment is connected to the front guide rod 21 like a conventional banding guide. Instead, it is assumed that the culm is simply pinched and the starting end side of the guide rod on the tip side of the spike is extended forward as described above, instead of the structure in which the guide rod 21 is connected. However, it goes without saying that the same effect can be obtained.

Further, in the side view of the above-described embodiment, the center of curvature of the curved guide rod 21 is handled at the depth conveying body 3.
When the rotation center is substantially coincident with the center of rotation, the positional relationship between the guide rod 21 and the arm 24 is always substantially constant at the time of adjusting the handling depth, the load on the arm 24 can be reduced, and the operation can be performed smoothly.
Be certain.

FIG. 5 shows another embodiment of the banding guide, in which the banding guide 37 in the previous example is placed at a position immediately before facing the stock transfer chain 36 with a first banding guide 37a.
And a second pinching guide 37b, which are connected by a rotatable connecting portion 47. According to this example, the arm 24 and the guide rod 21 can more smoothly cope with a change in the positional relationship due to the adjustment of the handling depth and the slide adjustment of the preprocessing device B in the left-right direction.

Next, the details of the portion of the tension roller 45 of the stock-holding / conveying body 33 will be described with reference to FIGS. 6 to 8. The conventional scraper for preventing winding of this type of tension roller is shown in a side sectional view of FIG. As described, the center roller 45 has a bearing (not shown) in the center, and the fixed scraper cylinder 5 is fixed between the upper and lower mounting pieces 51, 51.
3a and 53a, the bolts 52a and nuts 52b are sandwiched and fixed. At this time, the scraper cylinders 53a and 53a
Since the scrapers 53b, 53b standing on both sides approaching the roller 45 from a are provided perpendicular to the roller 45, the straw scraps 54 and the like being conveyed are scraped by the scraper 53b,
The stagnation and accumulation occurred at the portion 53b, and the seal portion of the bearing at the center of the roller 45 was worn or the chain was detached. Therefore, as shown in FIGS. 6 and 7, when the scrapers 53 b and 53 b are provided so that the upper side in the rotation direction of the roller 45 approaches the roller 45 and the lower side is inclined backward so as to be far from the roller 45, the Double arrow 5
5 and is smoothly discharged out of the machine.
This makes it possible to improve the life of the bearing, prevent the chain from coming off, and the like.

The details of the grain culm transfer portion between the handling depth conveying device 7 and the threshing unit 4 will be described with reference to FIGS.
9 is a plan view of the grain culm transfer portion, FIG. 10 is a sectional view taken along the line AA of FIG. 9, and 56 is a rubber plate provided on the rear end side of the handling depth transfer device 7. A pin 57 is provided at the end of the rubber plate 56. The lower ends of the pins 57, 57 are fitted into pin grooves 59, 59 provided on the inlet plate 58 of the threshing unit 4, and Since the inlet plate 58 of the threshing unit 4 is connected, the pin 57 moves along the pin groove 59 when the handling depth is adjusted. Thereby, conventionally, the handling depth transport body 31
During the adjusting operation, the rubber plate 56 is connected to the inlet plate 5 of the threshing unit 4.
8, the rubber plate 56 and the inlet plate 58 are connected, so that the rubber plate 56 does not fall and the grain culm conveyance is hindered. Can be prevented. Further, when the back surfaces of both the rubber plate 56 and the inlet plate 58 (the cut-in of the inlet plate 58 is required) are connected by a spring 60, the rubber plate 56 can be prevented from dropping and bending, and the above-mentioned effect becomes more remarkable. Things.

[0022]

According to the present invention, as described above, in a combine where the pre-processing device B provided with the pair of right and left raising devices 15 and the like slides in the left-right direction, the pre-processing device B is moved vertically and rearwardly by the rear fulcrum. Since the handling depth transport body 31 which rotates to the left and right is provided, and the starting end side of the clamping guide 37 opposed to the handling depth transport body 31 extends to the back of the left-side elevating device 15a in front thereof. In addition, a gap is hardly generated between the handling depth transport device 7 and the pretreatment device B, and the grain culm can be smoothly transferred. In addition, a vertical guide rod 21 is provided on the back of the left-side raising device 15a, and the starting end side of the pinching guide 37 is connected to and supported by the guide rod 21 so as to be vertically slidable. Even if it is adjusted up and down in accordance with the length of the harvested culm, or even if the pretreatment device B is slid in the left and right direction, no gap is formed in the culm passage between the handling depth transfer device 7 and the pretreatment device B, It is possible to avoid leakage of the culm during transportation or disturbance in transportation as much as possible.

Further, a diverter 26 is provided at the rear of the left-side raising device 15a, and the guide rod 21 is moved to the rear end 2 of the diverter 26 in side view.
6a, the grain culm during harvesting / transport abuts on the guide rod 21, and the grain culm during transport is disturbed and the transport jam may occur. There is no such thing as shattering.

Further, the starting end of the pinching guide 37 is connected to the arm 2
4 is connected to and supported by the guide rod 21 via the arm 4, and the cylindrical portion 25 on the rear side of the arm 24 is formed in a hollow shape, and the starting end side of the clamping guide 37 is inserted into the hollow portion so as to be extendable and contractible.
It is possible to always follow the change of the positional relationship due to the adjustment of the handling depth by the handling body 31 and the slide adjustment of the pre-processing device B in the left-right direction.
Can always maintain the effect of continuous connection via the.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a combine of the present application.

FIG. 2 is a side view showing a pre-processing unit of the combine.

FIG. 3 is a side view showing a main part of the same.

FIG. 4 is a plan view of a main part of a preprocessing unit.

FIG. 5 is a plan view of another embodiment of the pinching guide.

FIG. 6 is a plan view showing details of a tension roller unit.

FIG. 7 is a side view of a main part of the above.

FIG. 8 is a side view showing a conventional example of the main part of the above.

FIG. 9 is a plan view of a grain culm transfer portion between a handling depth conveying device and a threshing unit.

FIG. 10 is an enlarged sectional view taken along line AA of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 2 Pre-processing part 4 Threshing part 7 Handling depth conveying device 11 Cutting drive case 12 Pre-processing frame 15 Raising device 15a Left-side raising device 16 Scraping device 19 Raising bracket 21 Guide rod 24 Arm 25 Tube part 26 Distributing plate 31 Handling depth carrier 34 U-shaped pipe 36 Stock carrier chain 37 Nipping guide 45 Tension roller A Parallel link mechanism B Pretreatment device

Claims (4)

[Claims] 1. A combine depth in which a pre-processing device B having a pair of right and left raising devices 15 and the like slides in the left-right direction. A conveying body 31 provided with a conveying body 31, wherein the starting end side of a clamping guide 37 opposed to the handling depth conveying body 31 is extended to the back of a left raising device 15 a in front of the conveying guide 31. apparatus. 2. The handle according to claim 1, wherein a vertical guide rod 21 is provided on the back of the left-side elevating device 15a, and a starting end of the pinching guide 37 is connected to and supported by the guide rod 21 in a vertically slidable manner. Depth transfer device. 3. A plate 26 is provided at the rear of the left raising device 15a.
Is provided, and the guide rod 21 is moved to the rear end 26a
3. The handling depth transport device according to claim 1, wherein the transport device is provided at a position forward of the position and on a back side of the plate 26 in a plan view. 4. 4. The starting end of the pinching guide 37 is connected to and supported by the guide rod 21 via the arm 24.
4. The handling depth conveying device according to claim 1, wherein the rear cylindrical portion 25 is formed in a hollow shape, and the starting end side of the pinching guide 37 is extendably inserted into the hollow portion.