JPH0530413B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides a waste straw shredding device for shredding threshing waste straw behind a threshing device, and a threshing device behind the waste straw shredding device. A waste straw binding device for processing waste straw in a sideways posture is provided, a waste straw supply path for conveying the threshed waste straw from the threshing device in a sideways posture, and a waste straw supply path for transporting the waste straw to the said waste straw shredding device. A supply switching device is provided for switching the waste straw supply path between a first state in which the waste straw is supplied and a second state in which the waste straw is supplied to the waste straw binding device, and a stock end position of the transported waste straw in the waste straw supply path is detected. A plant side contact sensor, a tip side contact sensor arranged in parallel in the culm direction, and
In addition to providing stock alignment boards for aligning the stock ends of the threshed waste straw collected by the waste straw binding device,
A drive mechanism is provided that moves and adjusts the stock side contact sensor, the ear tip side contact sensor, and the stock alignment plate in the same direction in the direction of the culm of the threshed waste straw, and the stock end of the transported waste straw is The drive mechanism is activated based on information from the stock side contact sensor and the tip side contact sensor so as to pass between the base side contact sensor and the tip side contact sensor without contacting the stock side contact sensor. This invention relates to a combine harvester threshing waste straw processing device equipped with an automatically operated stock alignment board position control mechanism.

[Conventional technology]

In the above-mentioned combine harvester, conventionally, the stock side contact sensor and the tip side contact sensor are arranged at a location on the upper side of the supply switching tool in the waste straw supply path, or at a location on the lower side.

[Problem that the invention seeks to solve]

In the former case, that is, when the contact sensor is located above the supply switching tool, in order to avoid the inconvenience of unnecessary movement and adjustment of the stock alignment board when shredding the waste straw, The main switch is turned off to prevent control, but sometimes the main switch was turned off when the stock alignment board was adjusted to move toward the tip. and,
In the latter case, that is, when the contact sensor is located on the lower side of the supply switching tool, the threshing waste straw does not come into contact with the contact sensor during the waste straw shredding process, so both contact sensors and The stock alignment board is controlled to move toward the tip side until it reaches the stroke end. Therefore, in either the former or the latter case, when the processing of waste straw is switched from shredding to bundling, the stock alignment board is placed at the appropriate position to align the ends of the plants as the waste straw reaches the contact sensor. However, if the threshing straw is relatively long, the adjustment of the position of the stock alignment board will be delayed and the threshing straw will get caught on the edge of the stock alignment board, causing the threshing straw to be disturbed or clogged. Something happened.

An object of the present invention is to make it possible to eliminate the above-mentioned disadvantages when the straw removal process is changed from shredding to bundling.

[Means for solving problems]

The characteristic configuration of the present invention is that in the above-mentioned combine harvester threshing and waste straw processing device, the drive mechanism is arranged on the side where the stock side contact sensor, the ear side contact sensor, and the stock alignment plate move toward the stock stock side. The present invention is provided with an operation switch that is operated with priority over information from the stock side contact sensor and the tip side contact sensor, and its functions and effects are as follows.

[Effect]

When changing the treatment of waste straw from bundling to shredding, the operation switch is operated to forcibly move the stock alignment board toward the stock base, and then the main switch is turned off to disable control. During the shredding process, the stock alignment board can be retracted to an appropriate position such as the stroke end on the stock base side.

〔Effect of the invention〕

Therefore, even if the stock alignment board is located on the head side when changing the waste straw processing from bundling to shredding, the shredding process can be performed with it retracted from this position towards the stock base. Next, when switching the waste straw processing from shredding to bundling and controlling the position of the stock alignment board, even if the length of the waste straw that is started to be fed is longer than the length of the previous bundling, and the stock arrangement board Even if there is a delay in adjusting the position of the stock alignment board, the stock alignment board will be further away from the waste straw to the stock base side and the waste straw will be able to avoid being caught in the stock arrangement board by a large width.
Even when the waste straw treatment is switched from shredding to bundling, it is now possible to start the process without clogging or disrupting the posture, regardless of the length of the waste straw.

〔Example〕

As shown in FIGS. 2 and 3, the threshing waste straw processing device of the combine harvester is configured by a waste straw conveying device that takes over the threshed waste straw discharged from the threshing device 1 in a sideways posture and conveys it rearward. 2. A waste straw shredding device 3 for shredding the threshed waste straw from the waste straw conveying device 2 is installed behind the threshing device 1, and the threshing waste straw is placed in a horizontal position behind the waste straw shredding device 3. A waste straw bundling device 4 is installed,
A waste straw supply path 6 for conveying the threshed waste straw from the threshing device 1 in a sideways posture is installed on the upper part of the waste straw shredding device 3 to supply the transferred waste straw to the waste straw shredding device 3. A sliding switching device 5 is swingably provided to switch between the first state and the second state where the waste straw is supplied to the waste straw binding device 4, so that the shredding and bundling of the threshed waste straw can be performed. When performing the bundling process, a stock alignment plate 7 is provided to align the stock ends of the threshed waste straw collected by the waste straw binding device 4, so that bundling can be performed while aligning the stock ends of the threshed waste straw. be.

The stock alignment board 7 has a swing support arm 10, a pivot shaft 11, a frame 12, and a guide frame 9 installed on a pair of support frames 8, 8 extending from the straw shredding device 3. An electric motor is attached so as to swing around the axis of the pivot shaft 11 via a member 13, and serves as a drive mechanism for driving and swinging the stock alignment plate 7 around the axis of the pivot shaft 11. 15 is attached to the screw shaft 14 extending from the support frame 8 on the left side in the direction of the waste straw culm, and the mounting member 13.

In detail, the drive unit 20 includes a crank arm 16 driven and rotated by an electric motor 15.
and the swing support arm 10 are interlocked and connected by a connecting member 18 having ball joints at both ends, thereby forming a driving section 20 for the stock alignment plate 7.

The mounting member 13 is slidably fitted onto the guide frame 9, and the mounting member 13 is slidably fitted onto the guide frame 9.
The screw shaft 14 is rotated by driving an electric motor 19 attached to the end of the stock arranging device A having the stock arranging plate 7 and the drive section 20 in the direction of the culm of the threshed straw. It is configured so that it can be moved to

The electric motor 19 is connected to a contact sensor 22 which will be described later.
By controlling the drive based on the information of a and 22b, the movement of the stock arranging device A is adjusted so that the bundling can be performed while reliably striking the ends of the stock evenly, regardless of changes in the culm height of the threshing straw. It is configured. More specifically, as shown in FIGS. 1 and 3, the support member 21 attached to the frame 12 is provided with a threshing device so as to detect the position of the stock end of the transported waste straw in the waste straw supply path 6. The plant side contact sensor 22a and the tip side contact sensor 2 are placed in parallel in the culm direction of the straw.
2b, and both the contact sensors 22a,
A stock alignment plate position control mechanism 23 is provided which automatically operates the electric motor 19 based on the information of the contact sensor 22b.
2a, 22b and the stock arrangement device A are integrally moved and adjusted toward the stock side, and both the contact sensors 22
If neither of the contact sensors 22a and 22b act in contact, the electric motor 19 is activated and both the contact sensors 22a and 2
2b and the stock alignment device A are integrally moved and adjusted toward the head side, so that the stock end of the threshed straw is moved between the contact sensors 22a and 22b by the contact sensor 22a on the stock head side.
Both contact sensors 22
a, 22b and the stock alignment device A are adjusted in position. A limit switch 24 is provided near the rear end of the waste straw conveying device 2 to detect the presence or absence of threshing waste straw.
When this is detected, the waste straw binding device 4 is operated, and the stock alignment plate position control mechanism 23 is operated to adjust the position of the stock alignment device A. Further, the stock side contact sensor 2
2a, an operation switch 25 for operating the electric motor 19 on the side where the tip side contact sensor 22b and the stock arrangement device A move toward the stock side, giving priority to information from both the contact sensors 22a, 22b; The supply switching device 5 is arranged so as to be turned on by switching the supply switching device 5 to the side where the waste straw supply path 6 is set to the first state, and to perform the waste straw shredding process. When the detection signal of the operating switch 25, which is turned on and operated in conjunction with switching to the first state, is input to the stock alignment plate position control mechanism 23, both contact sensors 22a, 22b and the stock alignment device A are moved to the stock alignment plate position control mechanism 23. A drive signal for driving the electric motor 19 is output from the stock alignment board position control mechanism 23 to move it to the stroke end, so that both contact sensors 22a, 22b and the stock alignment device A are switched off during the waste straw shredding process. It is maintained at a predetermined position on the original side. Then, as the waste straw shredding process is switched to the waste straw binding process, the operation switch 25 goes into the non-detection state, and as described above, based on the information from both the contact sensors 22a and 22b, both the contact sensors 22a and 22b 22b and the stock alignment device A are adjusted.

[Another example]

In the embodiment described above, the operation switch 25 was automatically turned on and off when the supply switching device 5 was switched. When switching from the cutting process to the waste straw binding process, the operation switch 25 may be manually turned off.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing and waste straw processing apparatus for a combine harvester according to the present invention, in which FIG. 1 is a block diagram, FIG. 2 is a side view of the rear part of the combine, and FIG. 3 is a plan view of the rear part of the combine. 1... threshing device, 3... straw shredding device, 4...
...Discharged straw binding device, 5... Supply switching tool, 6...
Discharged straw supply path, 7... stock alignment board, 19... drive mechanism, 22a... stock side contact sensor, 22b... tip side contact sensor, 23... stock alignment board position control mechanism, 25... operation switch .

Claims (1)

[Claims] 1. A waste straw shredding device 3 for shredding the threshed waste straw is provided behind the threshing device 1, and a waste straw shredding device 3 is provided behind the waste straw shredding device 3 to process the threshed waste straw in a sideways posture. a waste straw bundling device 4 for transporting the threshed straw from the threshing device 1 in a sideways posture; A supply switching device 5 is provided for switching the waste straw supply path 6 between a state and a second state in which the waste straw is supplied to the waste straw binding device 4, and the waste straw supply path 6 is
A plant side contact sensor 22a and a head side contact sensor 22b are arranged in parallel in the culm direction so as to detect the position of the stock end of the transported waste straw, and the threshing waste straw collected by the waste straw binding device 4. Each of the stock alignment boards 7 for striking the stock ends to align them is provided, and the stock head side contact sensor 22a, the ear tip side contact sensor 22b, and the stock alignment board 7 are interlocked in the same direction in the direction of the culm of the threshed straw. A drive mechanism 19 for adjusting the movement is provided, and the stock end of the conveyed waste straw passes between the stock side contact sensor 22a and the ear tip side contact sensor 22b without contacting the stock stock side contact sensor 22a. The threshing and waste straw processing device for a combine harvester is provided with a stock alignment board position control mechanism 23 that automatically operates the drive mechanism 19 based on information from the stock side contact sensor 22a and the ear side contact sensor 22b, The drive mechanism 19 is connected to the side where the stock side contact sensor 22a, the tip side contact sensor 22b, and the stock alignment plate 7 move toward the stock side.
This is a threshing waste straw processing device for a combine harvester, which is equipped with an operation switch 25 that operates with priority over information from 2b. 2 The operation switch 25 is connected to the waste straw supply path 6
the supply switching tool 5 to the side where the switch is placed in the first state;
The threshing waste straw processing device for a combine harvester according to claim 1, which is a switch that is turned on and operated by a switching operation.