JP2594919Y2 - Whole culm type combine - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a mowing pretreatment device having a first mowing device for cutting planted grain culm at the front of a traveling machine equipped with a threshing device. In the lower part of the pretreatment device, a second mowing device for cutting the stem stalk stumps left uncut by the first mowing device to a predetermined length is stored in a lower use posture and an upper storage position located above the lower use posture. The present invention relates to an all-culm input type combine which is provided to be switchable between a posture and a posture.

[0002]

2. Description of the Related Art In the above-mentioned whole culm input type combine,
In the case of so-called two-stage cutting, the first cutting device cuts the tip of the grain stalk by a first cutting device, and the second cutting device cuts the stem stalk stumps left uncut by the first cutting device to a predetermined length. The processing device is raised to set the cutting height of the grain stalk tip by the first cutting device, and the second cutting device is lowered to set the height of the stem stalk stumps left uncut by the first cutting device. I do.

[0003]

At the time of turning the machine at the end of the field, the entire body of the pre-cutting device is raised to perform the turning of the machine. There is a possibility that the second reaping device may be damaged by colliding with the ground due to too much. Therefore, as shown in FIG. 5, the linkage mechanism between the second reaping device 9 and the hydraulic cylinder 11 as the second reaping device lifting / lowering actuator includes:
An accommodation U that allows the second reaping device 9 to be displaceable upward relative to the reaping pre-processing device A is provided.
It is conceivable to escape upward when it touches the ground, but in such a case, during normal mowing work,
There is an inconvenience that the second reaper 9 is loose due to the accommodation U. An object of the present invention is to prevent the second mowing device from being damaged when the pre-cutting device is lowered without inducing rattling of the second mowing device.

[0004]

SUMMARY OF THE INVENTION A whole culm input combine according to the present invention is a pre-cutting treatment device having a first reaping device for cutting planted cereal culms in front of a traveling machine equipped with a threshing device. Are connected to each other so as to be able to move up and down, and a lower part of the pre-cutting device is provided with a second mowing device for cutting the stem stalk stumps left uncut by the first mowing device to a predetermined length, in a lower use posture and an upper storage posture. A switchable all-culm-insertable combine, which detects that the second reaping device in the downward use position has been lowered to a predetermined position with respect to the body of the vehicle with the lowering of the reaping pretreatment device. And a control for rapidly raising the second reaper to the upper storage posture side at a higher speed than at a normal lowering speed in an area above the predetermined position based on a detection result of the detection apparatus. Means are provided And wherein the configuration.

[0005]

As shown in FIG. 1, when the pre-cutting device A is lowered while the second reaping device 9 is in the downward use posture, the support frame 10 of the second reaping device 9 is moved to the body height detecting device. To the limit switch SW. When the limit switch SW is operated, as shown in FIG. 2, the electromagnetic force is applied to the lifting hydraulic cylinder 11 of the second reaper 9 which is normally opened and closed by an intermittent signal via a control device 16 using a microcomputer. The electromagnetic valve 12 in which the flow rate per unit time is controlled by opening and closing the valve 12 by the data of the rapid rise signal stored in the memory 16a in advance, that is, usually by the intermittent signal, In addition, since the open state is maintained for a certain period of time by the continuous signal, and the speed is rapidly increased faster than the normal lifting speed of the pre-cutting device A, the second reaping device 9 is moved when the pre-cutting device A is lowered. Collision with the ground is avoided.

[0006]

As a result of the above construction, the ground surface in the case where the second mowing device is forgotten to be stored and the mowing pre-processing device is lowered, while the second mowing device is supported without rattling, is stored. Damage to the second mowing device due to collision with the second mowing device can be prevented.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows a front part of the whole culm-introduced combine according to the present invention. In the combine, the harvesting pretreatment device A is mounted on the front part of the traveling machine body 2 equipped with the threshing device ₁ around the horizontal axis X1. It is configured to be swingably connected. The cutting pretreatment device A includes a rotating reel 3 for scraping the planted grain stalk toward the machine body, a first cutting device 4 for cutting the tip of the grain stalk, a conveyor 5 for transporting the cut tip to the rear, Conveyor 5
And an auger 6 that gathers at the center at the rear, a central conveyor 7 that scrapes and transports the grain culms gathered at the center, and sends all culms to the threshing apparatus.
And by expansion and contraction operation of the manual operation type hydraulic cylinder 8 which is laid, it is lifting drivingly configured on the horizontal axis X ₁ around between.

[0008] The lower part of the pre-cutting device A,
A second reaping device 9 for cutting the stem stub stumps left unremoved by the first reaping device 4 to a predetermined length can be switched between a lower use posture and an upper storage posture relatively higher than the lower use posture. And only the grained portion of the grain culm is carried into the threshing apparatus 1 to improve the threshing process efficiency, and
The stub height is reduced to facilitate tillage work. The second cutting device 9, the lower portion of the cutting pretreatment apparatus A, are attached to the tip of the horizontal axis X ₂ swings around freely pivoted to the right and left pair of support arms 10, by the expansion and contraction operation of the hydraulic cylinder 11 are elevation drivingly configured on the horizontal axis X ₂ around.

As shown in FIG. 2, the hydraulic cylinder 11 of the second mowing device 9 has a wiper motor 13 whose operation valve 12 can rotate forward and reverse, and converts the rotational motion of the wiper motor 13 into a linear motion. The wiper motor 1 is configured to be switchable between three positions of up / down / neutral via a conversion mechanism 14.
Reference numeral 3 denotes a switch of the up / down switch 15 between the up side and the down side, which is configured to be capable of normal / reverse operation by an intermittent pulse signal via a control device 16 as control means using a microcomputer.

As shown in FIG. 1, the body frame 2a
A limit switch SW as an example of a detecting device for detecting that the second mowing device 9 in the lower use posture has been lowered to a predetermined position with respect to the fuselage as the mowing pre-processing device A is lowered. And the second mowing device 9
When the support arm 10 is turned ON by contacting the limit switch SW, the memory 16 in the control device 16
Based on the data of the rapid ascent means stored in advance in a,
That is, normally, the electromagnetic valve 1 whose flow rate per unit time is controlled by being opened and closed by an intermittent signal.
2 is kept open on the rising side and for a certain period of time by a continuous signal so as to be rapidly raised faster than the descent speed of the pre-cutting device A.

As shown in FIG. 1, a hydraulic drive unit UN for the hydraulic cylinder 11 of the second mowing device 9, that is, a hydraulic drive unit UN equipped with a hydraulic pump, a hydraulic tank, an operation valve, and the like, performs pre-cutting processing. The hydraulic pump 17 of the hydraulic drive unit UN is provided in the apparatus A, and is driven by the power branched from the cutting blade drive shaft 18 of the pre-cutting device A.

As shown in FIGS. 4A and 4B, a second mowing device 9 mounted below the mowing pre-processing device A
The support arm 10 is integrated with a horizontal frame 19 attached to the lower part of the pre-cutting device A to form a unit, and the horizontal frame 19 is provided with a horizontally foldable stand 20, 20 is provided so as to allow a user to take a flight when the second reaper 9 is detached or attached during maintenance or the like. In the above-described embodiment, the control device 16 using the microcomputer and the memory 16a in the control device 16 are collectively referred to as the second reaping device 9, and the second reaping device 9 is quickly raised to the upper storage posture side at a speed higher than the lowering speed of the reaping pre-processing device A. This is referred to as control means.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a side view showing a part of a pre-cutting device.

FIG. 2 is a schematic diagram showing a drive system of a second reaper.

FIG. 3 is a side view of the entire combine.

FIG. 4 is a side view and a front view showing a stand structure of a second reaper.

FIG. 5 is a side view showing a comparative example.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 threshing device 2 traveling body 4 first reaping device 9 second reaping device 16 control means A pre-cutting device SW detection device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-60516 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01D 34/24 A01D 49/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A cutting pretreatment device (A) having a first cutting device (4) for cutting planted grain culms at the front of a traveling machine (2) on which a threshing device (1) is mounted. And a lower part of the pre-cutting device (A), and a second cutting device (9) for cutting the stem culm stumps left uncut by the first cutting device (4) to a predetermined length, in a downward use posture. And an upper storage position, wherein the second reaping device (9) is in a lower use position.
Detection device (S to detect that it is lowered to a predetermined position relative to the body along with the descent of the cutting pretreatment device (A)
W) and, based on the detection result of the detection device (SW), move the second reaper (9) from the predetermined position.
An all-culm input combine provided with a control means (16) for rapidly ascending to the upper storage posture side at a higher speed than at a normal descent speed in a region above the bridge .