JP2558076B2 - All culm type combine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front part of a vehicle body equipped with a threshing device, a cutting device for cutting planted grain culms, and a threshing of cut grain culms. The present invention relates to an all-culm-type combine combine in which a mowing unit made up of a supply device for feeding to the device is vertically movable. Generally, in this type of combine, since the cut grain culm is fed to the whole culm threshing device, the grain culm having only the upper end of the culm, such as rice and wheat, is used. At the time of harvesting, it is desirable to cut only the tips of the culms and send them to the threshing device in order to improve the processing capacity,
Conventionally, in the combine harvester having the above-mentioned configuration, as described above, the harvesting work may be performed in which only the tip portion of the grain culm is cut. As described above, in the work of cutting only the tip portion of the grain culm, the uncut plant remains on the ground and may interfere with the next plowing work. There is known a combine with a two-step cutting structure in which, in addition to the first cutting blade, a second cutting blade for cutting the root side at a lower position than that is provided (for example, see JP-A-60-244217). However, as described above, if the second cutting blade for cutting off the stock left uncut by the first cutting blade is simply provided, the vehicle body is overwhelmed each time. In order to avoid contact with the ridges, not only the mowing part having the first cutting blade but also the second cutting blade needs to be moved up each time, which makes the operation troublesome and the second
There is also an inconvenient aspect such as a collision with the ridge of the cutting blade. An object of the present invention is to provide a operability mechanism for cutting off uncut plants while making full use of the characteristics of the whole culm input type combine which can improve the work efficiency by harvesting only the tip portion. [0005] The technical means of the present invention taken to achieve the above object is a cutting device for cutting a planted culm in the front part of a traveling vehicle equipped with a threshing device. And a all-culm throw-in type combine in which a mowing section consisting of a feeding device for feeding the mowed culm to the threshing device is vertically movable, and a mowing blade mechanism for cutting the stock left uncut by the reaping device is vertically movable. Along with the mowing unit, a sensor for detecting the level of the mowing unit is provided, and further, an elevating mechanism for elevating and lowering the mowing blade mechanism so as to keep the mowing blade mechanism level constant based on a signal from the sensor is provided. And this lifting mechanism
The cutting blade mechanism is configured to be forcibly lifted relative to the cutting unit when the cutting unit rises above a predetermined level, and its action and effect are as follows. . When the above features are configured as shown in FIGS. 1 and 2, for example, the level setting device 21 for vertically moving the mowing section B can be operated as in the case of finishing the harvesting work and crossing the ridges. , When the cutting unit B is raised to a relatively high level, the level L set in advance is set during the raising of the cutting unit B.
At the same time when the reaper B reaches 1, the signal from the potentiometer 17 for detecting the level of the reaper B
The control device 19 forcibly raises the cutting blade mechanism 14 to the storage position shown by the phantom line in FIG. That is, in this embodiment, as shown in the graph of FIG. 3, the level L of the mowing unit B with respect to the time t when the mowing unit B is raised.
Is represented as a linear graph LB, and the cutting mechanism 1
In No. 4, the ground level G is kept constant until the cutting unit B reaches a predetermined level L1, and thereafter, the ground level G is raised to the storage position (a fixed posture with respect to the cutting unit B). The graph L14 showing the raising operation of the cutting blade mechanism 14 shows a bent state. The lifting mechanism C for raising the cutting blade mechanism 14 is composed of a control device 19, a solenoid valve 20, and a hydraulic cylinder 21. Therefore, when the reaper is raised when the ridge is crossed, the cutting blade mechanism for cutting the stock left uncut by the reaper is automatically raised, so that a special operation is required even when the ridge is crossed. It saves time and effort, and it is easy to avoid damage to the cutting blade mechanism due to forgetting the operation. Then, a cutting blade mechanism that cuts off the stock left behind by the reaping device is provided so that the level is maintained at a constant level, and even if only the tip portion is harvested by the whole culm input type combine, the stock left behind is cut off. Is cut near the ground by the level-controlled cutting blade mechanism, which facilitates the next plowing work. Further, since the raising of the mowing mechanism is not merely the raising of the mowing mechanism in association with the raising of the mowing device, but the raising of the mowing device is relatively relative to the mowing device, a mowing unit provided with the mowing device is provided. Need not be raised higher than necessary. Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 6, the threshing device 1, the Glen tank 2
The harvesting section B is movably connected to the front part of the vehicle body A which is loaded with the pair of right and left crawler traveling devices 3 to form an all-cullet-type combine harvester. As shown in the figure, the cutting unit B includes a reel 4 for scraping the planted grain culm K, a clipper-type reaper 5 for cutting the planted grain culm K, and the grain culm K1 from the reaper 5. With a conveyor 6 for sending the grain to the rear, an auger 7 for moving the grain culm from the conveyer 6 to the center of the cutting unit 6 on the substantially right and left sides, and a feeding device 8 for feeding the grain culm from the auger 7 to the handling chamber 1a of the threshing device 1. Made of The supply device 8 is composed of front and rear wheels 8a, 8b and an endless belt 8c wound around the front and rear wheels 8a, 8b. By transmitting the power from the traveling vehicle body A to the rear wheel 8b. While being driven, this power is transmitted to the support shaft 9 of the front wheel body 8a through the front wheel body 8a, and the power transmitted to the support shaft 9 causes the reel 4, the conveyor 6, and the auger 7 to be driven. Is driven, and a drive system (not shown) is configured so that the reaping device 5 is reciprocally driven. Further, both ends of the support shaft 10 of the wheel body 8b at the rear portion of the supply device 8 are idly supported by the traveling vehicle body A, and the hydraulic cylinder 11 arranged between the traveling vehicle body A and the reaping device 5 operates. , Reaper B
Is configured to swing up and down around the axis P of the support shaft 10. In this combine harvester, the cutting capacity of the threshing device 1 is improved by cutting only the tips of the planted culms K, and at the same time, the uncut crop K2 is cut at a level as close to the ground as possible. The blade mechanism is provided in the cutting unit B. That is, as shown in FIG. 1, with respect to the lower surface of the cutting unit B,
Vertically swingable frame 1 via left and right inorganic pivots 12
3 is extended rearward, and the clipper-type cutting blade mechanism 14 is attached to the swing end of the frame 13.
The cutting blade mechanism 14 swings up and down when an arm 15 attached to the end of the pivot shaft 12 is driven by a hydraulic cylinder 16. Further, as shown in FIGS. 4 and 5, a potentiometer 17 is provided on a pivot shaft P of the mowing part B, and the mowing part B is provided.
The ground level of the mowing unit B can be detected from the swing angle of the mowing unit B, and a potentiometer 18 is provided at the end of the pivot shaft 12 of the mowing blade mechanism 14 to determine the mowing unit from the amount of rotation of the pivot shaft 12. It is configured so that the relative distance of the cutting blade mechanism 14 with respect to B can be detected, and as shown in FIG. 2, it is operated by a control device 19 to which signals from these two potentiometers 17 and 18 are input, and a signal from the control device 19. Is provided, and the hydraulic cylinder 16 is driven by the electromagnetic valve 20. The control device 19 controls the cutting blade mechanism 1 based on the ground level of the mowing section B.
In order to bring 4 closer to the ground G, the hydraulic cylinder 16 is actuated so that the uncut stock K2 is cut at a level close to the ground G. Further, as shown in FIG. 2, an input system is formed so that a signal from a level setter 21 for setting the ground height of the mowing section B is inputted to the control device 19, and the level setting is made. The control device 19 operates so as to maintain the ground height of the cutting blade mechanism 14 constant during a harvesting operation in which the ground height of the mowing section B is adjusted by the device 21. Then, the control device 1
When the cutting section B is raised to a relatively high level as in the case of moving the vehicle body A over the ridges, the cutting blade mechanism 14 is automatically raised to the retracted position, and the ridges and the cutting blade mechanism 14 are moved over the ridges. Set so that and do not touch. [Other Embodiments] In addition to the above embodiments, the present invention can connect the cutting blade mechanism to the vehicle body so as to be able to move up and down, for example, via an arm or the like, and the lifting system can be an electric motor. It is also possible to configure and implement. It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing the operation of a mowing pretreatment unit and a cutting blade mechanism. FIG. 2 is a block diagram showing an elevating operation system of the mowing blade mechanism. FIG. 4 is a diagram showing a graph showing the operation of the blade mechanism. FIG. 4 is a plan view showing the level detection structure of the pre-mowing processing unit. FIG. 5 is a plan view showing the level detection structure of the cutting blade mechanism. Side view showing the front part of [1] Threshing device 5 Mowing device 8 Feeding device 14 Mowing blade mechanism 17 Sensor A Traveling vehicle B Mowing part C Lifting mechanism

   ────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Osamu Kime               64 Ishizukita-cho, Sakai-shi, Osaka               Bota Sakai Factory (72) Inventor Shigeo Sato               64 Ishizukita-cho, Sakai-shi, Osaka               Bota Sakai Factory                (56) References JP-A-60-244217 (JP, A)                 Actual development Sho 56-99719 (JP, U)                 Actual public Sho 56-16899 (JP, Y2)

Claims (1)

(57) [Claims] A cutting device (5) for cutting the planted grain culm, and a threshing device for cutting the grain culm (in the front part of the traveling vehicle body (A) equipped with the threshing device (1) ( Mowing unit (B) consisting of a feeding device (8) for feeding to (1)
Is an all-culm throwing type combine in which the cutting unit (5) is vertically movable, and a cutting blade mechanism (14) for cutting stock left uncut by the cutting device (5) is provided in the cutting unit (B) so that the cutting unit can be moved up and down. A sensor (1 for detecting the level of the reaper (B)
7), and further, an elevating mechanism (C) for elevating the cutting blade mechanism (14) so as to keep the level of the cutting blade mechanism (14) constant based on the signal from the sensor (17), In addition, the elevating mechanism (C) forcibly raises the cutting blade mechanism (14) relative to the mowing section (B) when the mowing section (B) rises above a predetermined level. All culm throw type combine that is configured.