JPH0956251A - Construction of waste straw treating unit in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the smooth introduction of the waste straw, transferred by a waste straw transfer apparatus in an inclined posture in which root side advances, through an inlet into a waste straw cutting apparatus by applying a simple modification and the efficient performance of waste straw cutting by the waste straw cutting apparatus. SOLUTION: In a waste straw treating unit of a combine harvester, waste straw sent out in a falling posture from a threshing apparatus A by a feed chain 1 its transferred up to the above position of a waste straw cutting apparatus 3 placed at the rear part of the threshing apparatus A by means of a root-transfer mechanism 7 for transferring the waste straw by nipping the root of the straw and an ear tip- transfer mechanism 9 for transferring the waste straw by checking the ear tip of the straw. The waste straw treating unit is also provided with a waste straw transfer apparatus 2 for dropping to charge the waste straw into an inlet 12b of the waste straw cutting apparatus 3. In this waste straw treating unit, a resisting body 16 for checking to give resistance to the waste straw transferred backward from the waste straw transfer apparatus 2 is placed at the front and upper position of the inlet 12b and at the root-side from the ear-tip transfer mechanism 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing unit using a feed chain, which comprises a stock carrier carrying mechanism for holding and carrying the stock straw side of a discharged straw and a head carrying mechanism for locking and carrying the tip side of the discharged straw. Discharge of a combine straw equipped with a discharge straw conveying device that conveys the discharged straw in a sideways posture carried out from the device to the upper part of the waste straw cutting device behind the threshing device and drops into the inlet of the waste straw cutting device. Regarding the structure of the straw processing unit.

[0002]

2. Description of the Related Art Conventionally, an exhaust straw conveying device in the above-mentioned combine exhaust straw treating section structure has a stock yuan conveying mechanism arranged in a state extending from the front left side to the rear right side of the exhaust straw treating section. It consists of a tip transport mechanism, and the stocker side is exposed to the outside of the machine because it is held and conveyed by the feed chain arranged on the left side of the threshing device. After being conveyed to the right rear of the machine body so as to be accommodated in the machine body, the machine was configured to drop into the introduction port of the discharge straw cutting device formed in a rectangular shape elongated along the left-right direction of the machine body.

[0003]

However, according to the above-mentioned prior art, since the waste straw just after the handling treatment is subjected to the handling treatment on the tip side, the delivery delay is more likely to occur toward the tip side, and the waste straw is also removed. The inlet of the cutting device is formed in a rectangular shape that becomes longer along the left-right direction of the machine body, while the stock carrier transport mechanism and the tip transport mechanism of the discharge straw transport device are
Since the waste straws conveyed by the discharge straw conveying device are arranged in a tilted posture extending from the front left side to the rear right side, the stock straw side has a tilted posture with respect to the introduction port. , In that posture, it will fall from the discharge straw conveying device toward the introduction port, so that the discharge straw from the discharge straw conveying device tends to straddle the introduction port. Was not introduced into the waste straw cutting device but accumulated in a state of being laid over the introduction port, resulting in the inconvenience that the waste straw cutting device cannot perform the waste straw cutting process. Moreover, the deeper the handling depth during the handling process, and the greater the amount of treatment, the greater the transport resistance due to the handling process, and the longer the transport delay on the tip side becomes.
The above-mentioned inconvenience is more likely to occur as the handling depth during the handling process is set deeper or the processing amount is increased.

The object of the present invention is to make a simple improvement so that the discharged straw conveyed by the discharged straw conveying device in an inclined posture in which the stock side precedes can be smoothly introduced into the discharged straw cutting device from the introduction port. In this way, the discharge straw cutting process by the discharge straw cutting device can be favorably performed.

[0005]

In order to achieve the above object, in the invention according to claim 1 of the present invention, a stock carrier transporting mechanism for holding and carrying the stock straw side of the drainage straw, and a stock straw discharge mechanism. By the tip transport mechanism that locks and transports the tip side, the waste straw in a sideways posture carried out from the threshing device by the feed chain is transported to above the waste straw cutting device behind the threshing device and the waste straw is cut. In the structure of the discharge straw processing unit of the combine equipped with the discharge straw transfer device that drops into the introduction port of the device, the discharge straw transfer is performed above the front of the introduction port and on the stocker side of the tip transfer mechanism. A resistance element was provided to lock the exhaust straw conveyed backward by the device to give resistance.

According to the first aspect of the present invention, the drainage straw conveyed by the discharge straw conveying device in the inclined posture in which the stock side precedes is first located above the front part of the inlet of the waste straw cutting device. When the temperature reaches the point, the resistor placed on the root side of the tip transfer mechanism will prevent the transfer to the rear of the root side, and then the tip side of the discharged straw transferred by the tip transfer mechanism will When it reaches the upper part of the front part of the inlet of the exhaust straw cutting device with a delay, it becomes a left-right posture along the inlet of the exhaust straw cutting device formed in a rectangular shape that becomes longer along the left-right direction of the machine body, and its posture Then, it is dropped from the exhaust straw conveying device to the introduction port of the exhaust straw cutting device.

Therefore, by the simple improvement of disposing the resistor on the stocker side of the tip conveying mechanism, the discharged straw conveyed by the discharged straw conveying device is irrespective of the treating depth and the treating amount during the treating. Since it is possible to reliably and smoothly drop the waste straw into the inlet of the waste straw cutting device, it is possible to eliminate the inconvenience that the waste straw is not introduced into the waste straw cutting device but is accumulated in the state of being bridged over the inlet. It has become possible to satisfactorily perform the discharge straw cutting process by the cutting device.

According to the second aspect of the present invention,
In addition to the invention according to claim 1, at a location near a front portion of the introduction port in the tip transporting mechanism, a tip guide for receiving and preventing the escape to the lower side of the discharged straw tips transported by the tip transporting mechanism is provided. Deployed.

According to the second aspect of the present invention, by disposing the tip guide, it is possible to reliably engage and convey by the tip conveying mechanism without letting the tip side of the discharge straw escape downward, so that the resistance element is used. It is possible to quickly and reliably convey the tip side of the discharge straw, which is blocked from being conveyed backward from the plant side, to the upper part of the inlet of the discharge straw cutting device and quickly drop it into the inlet. Like

Therefore, it has become possible to improve the efficiency of the waste straw cutting process by the waste straw cutting device.

[0011]

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

FIG. 1 shows a cross-sectional plane of a waste straw processing unit B provided at the rear of the threshing apparatus A, and FIG. 2 shows a waste straw processing unit B.
The left side of the vertical section is shown. The discharge straw processing unit B is
The feed straws 1 that have been discharged from the threshing device A by the feed chain 1 and have a sideways posture after the handling process
From the discharged straw conveying device 2 that receives the sludge from the right and conveys it to the right rear, the discharged straw cutting device 3 arranged below the discharged straw conveying device 2, and the dropper 4 arranged behind the discharged straw conveying device 2. It is configured. Discharge straw transporter 2
Is a stock carrier transport mechanism 7 that carries the waste straw by holding the stock carrier side with a transport chain 5 with a protrusion arranged above and a guide rail 6 arranged below, and a carrier chain 8. It is configured by a tip conveying mechanism 9 that conveys the discharged straw by locking the tip side from above with a plurality of locking claws 8a provided. The discharge straw cutting device 3 is
Disc-shaped cutting blade 10b on the rotating shaft 10a in the left-right direction
A cutting mechanism 11 configured by arranging two cutting bodies 10 arranged side by side in front and back, and a cutting mechanism 11
It is constituted by a dustproof case 12 which encloses the outer wall and suppresses the scattering of dust generated when the exhaust straw is cut.
It is designed to be finely cut and dropped from the discharge port 12a of the dustproof case 12 to be discharged. The dropper 4 includes an opening / closing plate 13 that is spring-biased so as to descend and swing as a predetermined amount or more of the discharged straws are accumulated, and an opening / closing plate 13 for the discharged straws.
It is configured by a guide plate 14 that guides upwards, and a predetermined amount of discharge straw is dropped and discharged outside the machine in a long length.

As shown in FIG. 2, the guide rail 6 of the stock carrier mechanism 7 is composed of a guide rod 6a supported and fixed and a slide rod 6b fitted in the guide rod 6a so as to be swingable. And a retracted state in which the extended end of the slide rod 6b is located above the front part of the exhaust straw cutting device 3, and a stretched state in which the extended end of the slide rod 6b is located above the rear part of the exhaust straw cutting device 3. It is designed to be used. The top plate 12A of the dust-proof case 12 covering the upper part of the cutting mechanism 11 is provided with an introduction port 12b for introducing the discharged straw into the discharged straw cutting device 3 in a rectangular shape elongated along the left-right direction of the machine body. At the same time, the switching plate 15 configured to be capable of switching the posture between the open posture that opens the inlet 12b and the closed posture that closes the inlet 12b by the vertical swinging operation around the rear fulcrum P facing left and right. Equipped.
In the open position, the switching plate 15 is separated upward from the top plate 12A, and its bottom surface 15a guides the discharged straw through the inlet 12b into the discharged straw cutting device 3. Further, in the closed posture, it is located at the same height as the top plate 12A, and its upper surface 15b guides the discharged straw backward. That is, by switching the state of the guide rails 6 and the attitude of the switching plate 15, the state in which the discharged straw from the threshing apparatus A is conveyed to the discharged straw cutting apparatus 3 through the discharged straw conveying path L by the discharged straw conveying apparatus 2 and the dropper. It can be switched to a state in which the sheet is conveyed to No. 4.

As shown in FIGS. 1 to 3, above the front portion of the inlet 12b of the exhaust straw cutting device 3 and above the stock carrier transport mechanism 7.
A resistor 16 is provided between the tip and the tip conveying mechanism 9 to provide resistance by being locked to the stocker side of the discharged straw conveyed backward by the discharged straw conveying device 2. The resistor 16 is composed of a spring plate curved so as to be located downward toward the rear side, the front side of which is supported and connected to the stock carrier transport mechanism 7 via a bracket 17, and the rear end thereof is in an open posture. The switching plate 15 is positioned below the free end of the switching plate 15. That is, the resistor 16 is provided on the stocker side of the tip transport mechanism 9.
When the waste straw transport path L by the waste straw transporter 2 is switched to a state in which the waste straws from the threshing equipment A are transported to the waste straw cutting device 3 by disposing the The drainage straw conveyed in an inclined posture in which the root side precedes has a resistance body 1 when the stock root side reaches above the front part of the inlet 12b of the drainage straw cutting device 3 before the tip side.
6, the backward transfer of the stock side is blocked, and then the tip side of the discharged straw conveyed by the tip transfer mechanism 9 is delayed and reaches the front upper part of the introduction port 12b of the discharged straw cutting device 3. Then, the posture becomes a leftward / rightward posture along the inlet 12b formed in a rectangular shape elongated in the left / right direction of the machine body, and in that posture, the discharged straw conveying device 2 to the discharged straw cutting device 3 are placed.
It will be dropped and introduced into the introduction port 12b.

Therefore, with the simple improvement of disposing the resistor 16 on the stocker side of the tip conveying mechanism 9, the conveying is carried out by the discharged straw conveying device 2 regardless of the treating depth and the treating amount at the time of treating. Since the discharged waste straws can be reliably and smoothly dropped and introduced into the inlet 12b of the waste straw cutting device 3, the discharged straws are not introduced into the waste straw cutting device 3 and are accumulated on the introduction port 12b. Therefore, it is possible to eliminate the inconvenience, and it is possible to favorably perform the discharge straw cutting processing by the discharge straw cutting device 3.

As shown in FIGS. 1, 3 and 4, in the vicinity of the front part of the inlet 12b in the tip transport mechanism 9,
A tip guide 18 is provided to prevent the tip side of the discharged straw conveyed by the tip conveying mechanism 9 from hanging downward and escaping from the locking claw 8a by receiving it from below. As a result, the tip end side of the discharged straw can be reliably locked and conveyed by the tip end conveying mechanism 9 without letting the tip side of the discharged straw downward, so that the resistor 16 prevents the backward movement of the stocker side. The tip end side of the discharged straw can be swiftly and reliably conveyed to above the front portion of the introduction port 12b of the discharged straw cutting device 3 and quickly dropped into the introduction port 12b. That is, it is possible to improve the discharge straw cutting processing efficiency by the discharge straw cutting device 3.

When the discharge straw conveying path L by the discharge straw conveying device 2 is switched to a state in which the discharge straw from the threshing device A is conveyed to the dropper 4, the discharge straw is switched between the resistor 16 and the closed posture. It is designed to pass between the plate 15.

[Other Embodiments] Other embodiments of the present invention will be listed below. The location of the resistor 16 may be variously changed as long as it is above the front of the inlet 12b and on the stock origin side of the tip conveying mechanism 9, for example, the stock origin conveying mechanism 7 may be changed. It may be arranged on the original side. As shown in FIG. 5, the resistor 16 is provided above the inlet 12b of the exhaust straw cutting device 3 and above the stock carrier transport mechanism 7.
When the waste straw conveying path L by the waste straw conveying apparatus 2 is switched to a state in which the waste straws from the threshing apparatus A are conveyed to the waste straw cutting apparatus 3 while being disposed on the stocker side than
If the tip end of the guide rail 6 of the stock carrier transport mechanism 7 is set rearward of the resistor 16, the stock straw side of the waste straw carried by the waste straw carrying device 2 is introduced into the inlet 12.
When the upper position of b is reached, the resistor 16 causes the resistor 1
Transport to the rear of the stock side than 6 is blocked,
The stock-source transfer mechanism 7 allows the transfer to the rear of the tip side of the resistor 16 to continue. Therefore, even if the tip transfer mechanism 9 is not provided, the tip side of the discharged straw, which is likely to cause a delay in transfer, can be transferred to a position above the introduction port 12b, and the discharge straw cutting device 3 can be reliably and smoothly moved to the introduction port 12b. It will be possible to drop into. That is, the discharged straw conveying device 2
It is possible to favorably perform the waste straw cutting process by the waste straw cutting device 3 while simplifying the above. Although only one resistor 16 is provided in the above embodiment, a plurality of resistors 16 may be provided.
For example, when two resistors 16 are to be arranged, one of them is one of the stock-source transfer mechanism 7 and the tip transfer mechanism 9.
It is conceivable that it is installed between the stock origin and the stock origin transport mechanism 7 and the other stock stock side.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of a waste straw processing unit showing a location where a resistor and a tip guide are arranged.

FIG. 2 is a vertical cross-sectional left side view of a discharge straw processing unit showing a location where resistors are arranged.

FIG. 3 is a vertical cross-sectional rear view of the main part of the waste straw processing unit showing the locations where the resistor and the tip guide are arranged.

FIG. 4 is a left side view of a longitudinal section of a main part of a waste straw processing unit showing a location of the tip guide.

FIG. 5 is a cross-sectional plan view of a waste straw processing unit showing a configuration of a waste straw conveying device according to another embodiment.

[Explanation of symbols]

 1 Feed chain 2 Exhaust straw conveying device 3 Exhaust straw cutting device 7 Share former conveying mechanism 9 Ear tip conveying mechanism 12b Inlet port 16 Resistor 18 Ear tip guide A Threshing device

Claims (2)

[Claims] 1. A feed chain (1) comprising a stock-source transport mechanism (7) for gripping and transporting the stock straw side of the discharged straw, and a tip transport mechanism (9) for locking and transporting the tip side of the discharged straw. ), The waste straws in the sideways posture carried out from the threshing device (A) are removed by the waste straw cutting device (3) behind the threshing device (A).
A discharge straw processing unit structure of a combine equipped with a discharge straw transfer device (2) for transporting to the upper part of the discharge straw cutting device (3) and dropping it into the introduction port (12b) of the discharge straw cutting device (3). ) Above the front part and above the tip transfer mechanism (9) on the side of the plant base, a resistor (resistor that locks the discharged straw conveyed backward by the discharged straw conveying device (2) to give resistance ( 16) The structure of the combined straw discharge processing unit in which the above-mentioned 16) is provided. 2. The discharged tip of the discharged straw conveyed by the tip transfer mechanism (9) is prevented from being received at a position near the front part of the introduction port (12b) of the tip transfer mechanism (9) and escaped downward. The structure of the combined straw discharge processing unit according to claim 1, wherein a tip guide (18) is provided.