JPH0241296B2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is a waste straw bundling device for bundling and processing waste straw from a combine harvester. This relates to a power take-off shaft for driving a vertical device.

(b) Prior Art Conventionally, the technology regarding the standing device attached to the rear of the straw binding device is known. For example, there is a technique described in Japanese Utility Model Application Publication No. 56-157942.

(C) Problems to be Solved by the Invention However, in the above-mentioned conventional technology, the power take-off shaft for the vertical device is provided at the extension protrusion of the input shaft to the bundling transmission case. There were some problems like this.

First, since the rotational speed of the input shaft is high, in order to reduce the high rotational speed, it is necessary to arrange a series of bevel gearboxes with a high deceleration rate within the power take-off gearbox.

In addition, the part of the input shaft that also serves as the power extraction shaft is installed away from the bundled straw discharge path so as not to interfere with the rotation locus of the needle or raking packer. If a power take-off shaft for the vertical device is placed in the vertical device, the drive system for driving the vertical device becomes large and complicated.

The present invention solves the above-mentioned problems.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the configuration for achieving the objects will be explained.

In a configuration where the bundling position of waste straw can be adjusted by sliding the bundling device A left and right with respect to the combine harvester, a standing device for standing the waste straw after bundling for drying is attached to the bundling device A. The power take-off shaft 35 for driving the vertical device is attached to the unit and can be slid together, and the power take-off shaft 35 for driving the vertical device is installed independently near the door shaft 34 that drives the door 44 on the lower side of the transmission system than the input shaft 29 of the binding mission case 20. This is how it was placed.

(E) Embodiment The object and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is an overall side view of a combine harvester equipped with a straw tying device and a standing device.

As the crawler-type traveling device 9 travels, the weed cutting board 1 separates the base of the grain culm in the field from side to side and guides it to the pulling device 2. While the lodging grain culm is raised by the raising device 2, the base of the stock is cut by the cutting blade device 3.
The stock head is conveyed by the stock head conveyor 4 to the lower part of the vertical conveyor 6, and after being transferred to the vertical conveyor 6, the stock head is rapidly lifted and transferred to the feed chain 7 of the threshing device 8.

On the other hand, the tip portion is transferred from the raising device 2 to the upper conveying device 5 and guided to the threshing device 8. While passing through the threshing device 8, the grains are threshed and become waste straw, which is sent to the bundling device A into the bundling device cover 12 by the straw discharging chain 10.

After being bundled by the binding device, it is released by the release arm 27 and transferred to the conveyance chain 69 of the standing device and the clamping device 1.
Between 4 and 4, the binding device near the neck of the ear is clamped,
It is conveyed obliquely upward, and falls at the end of the conveyance chain 69 with the plant base spread downward, and is placed in a standing position on the field.

11 is a power transmission shaft cover, 16 is a support rod of the vertical device, and B is a tied bundle of waste straw.

Power is transmitted to the binding device A from a pulley 90 on the right side in the direction of movement of the combine via a V-belt 92.
Power is transmitted to the input pulley 91 of the binding device A.

The axis of the input pulley 91 is the sliding spline shaft 2
4 and the input shaft 29 .
In FIG. 1, the puller 28 is placed at a distance l1 closer to the output pulley 90 than the distance l2 connecting the axes of the output pulley 90 and input pulley 91 on the combine side, that is, the distance l2 connecting the axes of the spline shaft 24 and the input shaft 29. A driving shaft 32 is arranged.

Fig. 2 is a rear view of the straw binding device, Fig. 3 is a rear sectional view of the bundling device A, Fig. 4 is a side view of the bundling device A, Fig. 5 is a side view of the bundling clutch device, and Fig. 6 is a side view of the bundling device A. It is a sectional view of a power take-off shaft 35 part.

Conventionally, a power take-off shaft was projected from the input gear box of the straw bundling device to the right side through the side plate 12a of the bundling device cover 12, and the gearbox for driving the vertical device was also attached to the side plate 12a from the outside.

However, in this case, when the bundling device A slides for adjustment, the ejection position of the bundling straw differs from that of the standing device, which causes problems in the handing over.

In the present invention, the bottom plate 19 of the binding mission case
The power take-off shaft is made to protrude further, and the power take-off gear box 18 is also attached to the bottom plate 19 of the binding mission case.

In FIG. 2, power is transmitted from the threshing device to the input shaft 23 of the straw binding device by an input pulley 91. Power is transmitted from the input shaft 23 to the spline shaft 24 via the coupling ring 23a, and from the spline shaft 24 to the binding mission case 20. 25 is a string case, 26 is a slide support pipe of the vertical device, and 16 is a support rod protruding from the vertical device side.

In addition to the slide support pipe 26, another slide support pipe 98 is provided at the front end, and the binding device A is supported by these two slide support pipes 26 and 98.

A letter-shaped slide body 93, etc. is placed on the slide support pipes 26, 98 and slides, and the post-slide position is adjusted by a cam configuration using three fixed handles 95, 96, 97, and then slides onto the slide support rods 26, 98. Further sliding is fixed by tightening the body 93 and the like.

As shown in FIG. 2, the fixing surface 9 of the support rod 16 protrudes from the vertical device side on the rear surface of the slide body 93.
4 is provided. Of course, the fixing surface 94 slides from side to side together with the binding device A.

Further, 99 is a belt cover that covers an output pulley 90, an input pulley 91, and a V-belt 92 for transmitting power to the binding device.

The main parts of the present invention will be explained with reference to FIGS. 3 and 4.

The power take-off shaft 35 is disposed on the lower side of the transmission system of the input shaft 29, inside the rotation locus of the chain 42 that transmits power from the sprocket 43 of the clutch shaft 33 to the sprocket 48 of the counter shaft 36.

The power is supplied to the loosely fitted gear 4 on the clutch shaft 33.
0 is always rotating, the fixed gear 41 is meshed with the loosely fitted gear 40 and interlocked with it, and the power take-off shaft 35 is constantly rotated.

Therefore, the power take-off shaft 35 is rotated at a lower rotation speed than the input shaft 29.

The right end of the power take-off shaft is the bundling transmission case 2
It penetrates the bottom plate 19 of 0 and is inserted into the power take-off gear box 18 of the vertical device for input.

The structure and operation of the binding device A will be explained.

The sliding spline shaft 24 slides within the input shaft 29 of the binding mission case 20, and power is always transmitted through the sliding spline shaft 24 and the input shaft 29 even when the binding device A slides.

Power is transmitted to the sliding spline shaft 24 from the input shaft 23 of the input pulley 91 through a coupling 23a.

Engagement balls 100 are provided on both sides of the coupling ring 23a.
The engagement ball 100 is inserted into the engagement hole of the spline shaft 24 to transmit rotation. The fitted state of the engagement ball 100 is stopped by a snap spring 101 on the outer periphery.

Packer shaft 32 from carved gear 30 of input shaft 29
Power is transmitted to the large diameter gear 31 of. Due to the rotation of the packer shaft 32, the packer crank 47 moves to rake the straw on the straw removal path in an elongated elliptical orbit, and the waste straw is moved towards the binding string stretched in the straw removal path and the door 44. Push it into.

When the waste straw is pushed in and reaches a certain amount, the door 44 connects the binding clutch 39, transmits the rotation of the loosely fitted gear 40 on the clutch shaft 33 to the clutch shaft, and performs intermittent rotation. Return to position and stop rotating. Free fit gear 40 of clutch shaft 33
is constantly meshed with the fixed gear 38 on the packer shaft 32, and also constantly transmits rotation to the fixed gear 38 on the power take-off shaft 35.

The needle 45 is rotated intermittently by the clutch shaft 33.
is reciprocated by the arm 46, the knot building 53 and the string holder 54 are rotated, and the knot building 53, which holds the starting and ending ends of the string wrapped around the waste straw, is knotted, and then the string holder 54 cuts the string. The end is cut with a blade, and the discharge arm 27 discharges the bound bundle.

The starting end of the cut string is held by the string holder 54, and as the needle 54 returns, the next binding string is tightened. The intermittent movements of the knot bill 53, string holder 54, and release arm 27 are transmitted by rotation of the clutch shaft. 55 is a tuberosity cover.

That is, from the sprocket 43 of the clutch shaft 33 to the chain 42, from the sprocket 48 of the counter shaft 36, also from the sprocket 49 to the chain 50,
Intermittent rotational power is transmitted to the binding shaft 37 through the sprocket 51.

A knot building 53, a string holder 54, and a release arm 27 are driven with timing by a bevel gear 52 at the end of the binding shaft. 55 is a nodule cover.

FIG. 5 is a side view of the binding clutch device, in which the rotation of the door 44 is caused by the door arm 44 at the door shaft 34.
a, the clutch arm 44b is released,
The intermittent drive gear rotates once. Reference numeral 56 is an adjustment bolt for adjusting the strength of engagement and disconnection of the clutch.

As shown in FIG. 4, the binding mission case 20
Slide support rods 26 and 98 are provided at the lower rear and below the trajectory of the pack car at the front, on which the binding device A slides.

FIG. 7 is a partial sectional view showing the drive system of the vertical device, FIG. 8 is a drawing showing the resistance plate 80 of the bundled waste straw,
Figure 9 is a side view showing the straw removal chain of bundled straw B, Figure 10 is a sectional view of the conveyance chain, Figure 11 is a top view of the clamping device, and Figure 12 is a rear view of the conveyance chain and clamping device. be.

In FIG. 7, the power take-off shaft 35 protruding from the bottom plate 19 of the binding mission case 20 connects the bevel gear 60 in the power take-off gear box 18,
61 to rotate the power transmission shaft 62.

The power transmission shaft 62 passes through the power transmission shaft cover 11 and drives the sprocket shaft 66 of the sprocket 67 via bevel gears 65 and 64 in the conveyance chain drive gear box 63.

A conveyance chain 69 is wound around the sprocket 67. Reference numeral 80 denotes a resistance plate that is operated so that when the tip of the bundled straw that has been conveyed gives resistance and falls downward, the base of the plant spreads out and stands on the field.The resistance plate 80 is supported by a spring 81. A biasing force is applied to the rod 84. The rotation angle of the resistance plate 80 is adjusted using adjustment bolts 82 and 83.

As shown in FIG. 12, a guide rod 71 and a guide plate 70 are suspended downward in parallel, thereby controlling the condition of the bundled straw so that it spreads out and falls from the base of the straw.

Support rods 74 and 73 of the clamping device 14 are formed in a U-shape from the case of the conveyance chain 67, are supported by a pivot 75 to give elasticity to the clamping device, and are biased in the clamping direction by a spring 76. , it is possible to handle large and small bundles.

A support rod 16 protrudes from the conveyance chain 69 toward a slide body 93 above the slide support pipe 26 of the straw bundling device cover, and the support rod 16 is attached to the slide body 93 which is slidable relative to the slide support pipe 26. It is fixed to a fixed surface 94.

The bundled straw thrown out by the discharge arm 27 of the binding device A is guided between the clamping device 14 and the conveyance chain 69 by the guide rod 68.

FIG. 13 is a diagram showing the configuration of a side plate 12a portion on the right side in the direction of travel that covers the binding device 12. A binding device cover 12 is provided around the binding device A, thereby covering the binding device A. However, there is a power take-off gear box 1 on the right side.
8, from which the power transmission shaft cover 11 of the vertical device protrudes diagonally, and the power take-off gearbox also comes into contact with the side plate 12a when moved to the rightmost side, so it can be removed as an attachment when the vertical device is attached. A split cover 103 is provided on the side portions of the power take-off gearbox 18.

FIG. 13 shows a state in which the split cover 103 is removed. 12b is an upper side plate.

(F) Effects of the Invention Since the present invention is constructed as described above, it exhibits the following effects.

Firstly, if the power take-off shaft for the vertical device is configured as an extension of the input shaft to the bundling transmission case as in the prior art, the rotation speed of the input shaft is high. In order to reduce the rotation speed to the rotation speed of the power take-off shaft, it is necessary to arrange a series of bevel gearboxes with a high deceleration rate within the power take-off gear box.

In the present invention, since the power take-off shaft 35 is arranged independently of the input shaft 29 on the downstream side of the power transmission system of the input shaft 29, the rotation after deceleration is transferred from the input shaft 29 to the power take-off shaft 35. Since the rotation can be taken out, a bevel gearbox provided in the power takeoff gearbox 18 can be provided with a low reduction ratio.

Second, if the extension of the input shaft of the binding transmission case is used as the power output shaft as in the past,
The part of the input shaft that also serves as the power output shaft is located at a distance so as not to interfere with the rotation locus of the needle or raking packer, and is also located away from the discharge path of the bundled straw, so it is not possible to use the vertical device. The drive system for driving this becomes large and complicated.

In contrast, in the present invention, the power take-off shaft 35 is arranged as an independent shaft near the door shaft 34, thereby making it possible to simplify the power transmission system to the vertical device. .

[Brief explanation of drawings]

Fig. 1 is an overall side view of a combine harvester equipped with a straw removal bundling device and a standing device, Fig. 2 is a rear view of the straw removal bundling device, Fig. 3 is a rear sectional view of the bundling device A, and Fig. 4 is a bundling device. 5 is a side view of the binding clutch device, FIG. 6 is a sectional view of the power take-off shaft, FIG. 7 is a partial sectional view showing the drive system of the vertical device, and FIG. 8 is a side view of the device A. Drawings showing the resistance plate 80 of the bundled waste straw, FIG. 9 is a side view showing the conveyance chain portion of the bundled straw, FIG. 10 is a rear view of the conveyance chain and the clamping device, and FIG. 11 is a top view of the clamping device. FIG. 12 is a rear view of the conveyance chain and the clamping device, and FIG. 13 is a drawing showing the right side of the straw binding device cover. A... Binding device, B... Binding straw, 18... Power take-off gear box, 19... Binding mission case bottom plate, 20... Binding mission case, 29
...Input shaft, 34...Door shaft, 35...Power take-off shaft, 44...Door.

Claims (1)

[Claims] 1 In a configuration in which the bundling position of waste straw can be adjusted by sliding the bundling device A from side to side with respect to the combine harvester, the bundling device A can be used to vertically stand the waste straw after bundling for drying. The power take-off shaft 35 for driving the vertical device is mounted independently near the door shaft 34 that drives the door 44 on the lower side of the transmission system than the input shaft 29 of the bundling mission case 20. A straw binding device for a combine harvester, characterized in that the straw binding device is arranged as follows.