JP2911507B2 - A culm collecting device for a walking type culm harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a culm collecting device of a walking stalk culm cutting machine for cutting stalks planted in fields such as soybeans, rice, and wheat. is there.

[Problems to be Solved by the Prior Art and the Invention] Generally, in this type of walking type stem / culm cutter, there is one that discharges a cut stem / culm to a cut ground side on one side of the machine body. It is desired that the released stems are intermittently released to the field in a predetermined amount for post-processing such as drying and threshing. Therefore, it is attempted to provide a culm collecting device (rake) having a fork for collecting the culm following the airframe running on the culm that has been released. However, in this thing, it is not necessary to constantly monitor whether the collected culm has reached the predetermined amount, and at the stage where the predetermined amount of culm has been collected,
An operation for transforming the fork from the culm posture to the release posture must be performed one by one, which complicates the operation and raises the problem of workability.

Therefore, it is proposed to adopt a configuration in which the fork can be released automatically in response to the airframe running. In this case, it is necessary to take care that the fork does not hit the field, and the stem culm is released at a stroke. It had to be something that had to be solved.

[Means for Solving the Problems] The present invention has been made in view of the above-described circumstances, and has been created with the object of providing a culm collecting device of a walking type stalk culm harvester capable of eliminating these drawbacks. In a walking-type stem-culm-removing machine provided with a cutting-stalk-removing means for harvesting the stem and releasing the stem to the cut side on the side of the machine body,
On the cut ground side of the aircraft, a culm posture for collecting stalk culm,
A culm collecting device provided with a fork that can be transformed into a release position for releasing the collected culm collectively is provided, and the fork in the culm collecting position is provided to the culm collecting device every predetermined distance based on axle rotation. In providing an automatic release mechanism for automatically transforming to the release position, the fork is inclined forward and backward and high in the collected culm posture and collects culms on the inclined upper surface, while the automatic release mechanism is provided. Is characterized in that a deforming means is provided for inverting the fork in the culm posture while lifting the fork upward and rearward to transform the culm surface into a discharge posture in which the culm surface faces downward. .

Further, in a walking stem culm mowing machine provided with a stalk culm cutting and releasing means for cutting and releasing the stalk culm to the cut side on the side of the fuselage, collecting the stalk culm on the cut ground side of the body. A culm collecting device provided with a fork that can be transformed into a collecting posture and a releasing posture in which the collected culms are collectively released is provided, and the fork in the collecting culm posture is provided to the culm collecting device based on axle rotation. In providing an automatic release mechanism for automatically transforming to the release position every predetermined distance traveling, the fork is inclined forward and backward and high in the culm collection position, and the culm is collected on the inclined upper surface. The automatic release mechanism is provided with deformation means for turning the fork of the culm posture upward while rearwardly raising the fork so that the surface on which the culm is collected is transformed into a release posture facing downward. The rotating body provided on the axle to take out the axle rotation, There also characterized by the fact that disposed between the wheels attached to the shaft end portions.

Still further, in a walking stem culm mowing machine provided with a stalk culm cutting and releasing means for cutting and releasing the stalk culm and releasing the stalk culm on the side of the cut side of the machine body, the stalk culm is collected on the cut side of the machine body. A culm collecting device with a fork that can be transformed into a culm collecting posture and a release posture that collectively releases the collected stalk culm is provided,
In providing the culm collecting device with an automatic release mechanism for automatically transforming the fork in the culm posture to the releasing posture for each predetermined distance traveling based on the rotation of the axle, the fork is moved forward and backward in the culm posture. The culm is inclined upward and the culm is gathered on the inclined upper surface. On the other hand, in the automatic release mechanism, the fork in the culm posture is turned upside down while being lifted backward and upward, and the surface on which the culm is gathered faces downward. Deformation means for transforming to the release attitude is provided, and the automatic release mechanism further includes automatic release release means for releasing the automatic release operation when the aircraft is moving backwards. .

According to the present invention, with this configuration, the operation of reliably releasing the stem can be simplified to improve the workability.

Example Next, an example of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a self-propelled walking type stem / culm mowing machine. An operating handle 2 constituting the mowing machine 1 is fixed to a cover frame 3. Top plate of cover frame 3 formed in shape
Engine 3 is mounted on 3a, and the front side is inclined
A hydraulic valve 6 described later is mounted on 3b.

Reference numerals 7 and 8 denote a transmission case and a gear case, respectively, disposed on the left side of the machine body. One end of the transmission case 7 is provided with a transmission pulley 9 integrally mounted on the output shaft 5a of the engine 5.
An intermediate shaft 10 to which a pair of transmission pulleys 11 and 12 is attached is rotatably supported at an intermediate portion of the transmission case 7, and between the transmission pulley 11 and the transmission pulley 9. A tension pulley 14 for loosening the transmission belt 13 is attached to the transmission belt 13 and constitutes a main clutch for interrupting the power of the engine 5. The output shaft 5a is extended, and a hydraulic pump 15 is attached to the extension.

The tip of the intermediate shaft 10 is immersed in the gear case 8,
The power of the intermediate shaft 10 includes a shifter gear 17, a transmission chain 20 suspended between an input gear 18 and a passive gear 19, an output gear 21a that rotates integrally with the passive gear 19, and a final gear that meshes with the output gear 21a. 21, and transmitted to the wheels 4 via the axle 4a and the like. 17a is a shifter fork.

On the other hand, an output shaft provided at the other end of the transmission case 7
22 includes a transmission pulley 24 having a one-way clutch 23 therein, and inputs the power of the intermediate shaft 10 via the transmission pulley 12, the transmission belt 25, and the transmission pulley 24. A tensioning pulley 25a is provided opposite to the cutting pulley 25a, and constitutes a cutting clutch for interrupting the power of the engine 5.
That is, the output shaft 22 includes a pair of bevel gears 26 and 27, and one of the bevel gears 26 has a cutting blade via a bevel gear 28b and a cutting blade shaft 28a.
28, and the other bevel gear 27 operates the conveyor belt 29 via the bevel gear 30 and the input shaft 29a.

The transport belt 29 has a transport protrusion 29b on the outer peripheral surface,
Although it is hung by pulleys 31a and 31b at both ends of the transport case 31,
The transport start end is continued to the left weeding body 32, and the transport end is inclined so as to be located on the cut ground side. Also, 3
4 and 35 are a pair of upper and lower guide rods provided on the right weed body 33, 36 is a delivery guide provided on the upper surface of the end portion of the transport case 31 for sending out the cut stems so as to fall down to the cut ground side, and further 37. Is a guide plate provided below the transport case 31 so as to continue from the left weed body 32.

Reference numeral 38 denotes a culm collecting device (rake) integrally attached to the right side plate of the cover frame 3, and a supporting rod of the culm collecting device 38.
A double-acting working cylinder 40 is provided integrally with 39, and a cylinder rod 40a of the working cylinder 40 is connected to a movable body 41 provided on a support rod 39 so as to be vertically movable. The movable body 41 moves up and down based on the expansion and contraction operation of the operation cylinder 40 while being guided by the guide rod 42 provided integrally with the support rod 39. Further, a base end of a substantially L-shaped link 43 is swingably connected to the movable body 41 via a support shaft 41a.
At the end of the link 43, a frame rod 44 protruding toward the cut ground side is provided.

In the frame rod 44, a plurality of forks 45 whose front ends are curved forward and downward and have a front low and a high height are arranged side by side in the vertical direction, and the gathering position (height) of the forks 45 is: The link 43 can be adjusted. That is, the link 43 is formed so that the bending angle can be freely adjusted using the bolt 46 as a fulcrum, and can be fixed at an arbitrary bending angle by the bolt 47 inserted into the long hole 43a.

Further, a support bar 48 protrudes upward from the link 43, and a cylindrical bracket 48a is movably attached to the support bar 48. At the upper end of the support rod 39, a bracket 49 is integrally provided.
A link 51 provided on a bracket 48a on the side on which the support rod 48 is moved is pivotally supported by a support shaft 50 provided on the bracket. The fork 45 has a tip located below the axis of the axle 4a of the traveling wheel with the support shaft 41a ascending by the upward movement of the movable body 41 based on the extension of the working cylinder 40 described above. From the low culm posture, where the stem culm is collected,
The culm surface is turned upside down so that the culm surface is turned downward, and the collected culm is released into the field at once.

The hydraulic valve 6 is configured as a so-called rotary valve,
The valve shaft 6a is provided with an operating plate 52 that rotates integrally.A pin 52a protruding from the operating plate 52 includes a swing arm 54 whose base end is rotatably supported by the valve bracket 53. They are connected via a long hole 54a. Further, the swing arm 54 is connected to a manual operation lever 55 for a culm collecting device provided on the handle 2 via an inner wire 56,
It is constantly urged forward by the ammunition 57. That is, a manual operation mechanism for the culling device 38 that switches the hydraulic valve 6 by the swing of the swing arm 54 in response to the operation of the manual operation lever 55 is configured. The hydraulic valve 6 is switched so that the working cylinder 40 is extended to set the culm collecting device 38 to the release position when the culm collecting device 38 is set to the culm collecting posture by reducing the size of the culm collecting device 38 and tightened. .

On the other hand, reference numeral 58 denotes a drive sprocket provided at the center of the axle 4a. A driven sprocket 60 rotatably supported by a support shaft 59 is provided at a position facing the drive sprocket 58, that is, at the top plate 3b of the cover frame 3. A chain 61 is suspended between the two sprockets 58 and 60, but the number of teeth of the driving sprocket 58 is set to be smaller than the number of teeth of the driven sprocket 60.

Further, the boss 60a of the driven sprocket 60 has
A cylindrical shaft 62 integrally provided with a radially protruding cam 62a is rotatably fitted to the outside. The cylindrical shaft 62 is integrally rotated with the driven sprocket 60 by a selective switching operation of a switching pin 63. It is like that. That is, the switching pin 63 is attached to the guide cylinder portion 62b protruding in the radial direction from the cylinder shaft 62.
And is always urged toward the shaft center by means of a drive sprocket 60.
The cylindrical shaft 62 is engaged with the engaging groove 60b formed on the side.
Is rotated integrally with the driven sprocket 60, but when the switching pin 63 engages with the engaging groove 60b, a pin 63a projecting from the intermediate portion is formed at the tip end of the guide cylinder portion 62b. The pin 63a is prevented from rotating by engaging with the locking groove 62c, and the pin 63a is not engaged with the engaging groove 60b.
The contact of the engagement pin 63 with the leading edge of the engagement pin 63b is restricted. 65 is the switching pin 63
This is a locking member provided on the valve bracket 66 so as to stop the rotation of the cylindrical shaft 62 by locking the distal end portion.

Incidentally, the engagement groove 60b formed in the boss portion 60a of the driven sprocket 60 is formed in the shape of a ratchet tooth, and even when the switching pin 63 is engaged, even when the driven sprocket 60 is reversed. Makes the cylinder shaft 62 idle. That is, the rotation of the axle 4a during reverse travel is
Is not transmitted.

On the other hand, the valve shaft 6a of the hydraulic valve 6 is formed to extend so as to protrude also from the rear surface, and an operating arm 67 which protrudes in the radial direction is provided integrally with the extension portion. A roller 67a is provided at the tip of the cam 62a on the cylindrical shaft 62. In other words, the cam 62a, which is rotated by the power of the axle 4a in a state where the switching pin 63 is immersed, comes into contact with the roller 67a every time the axle 4a rotates a predetermined time, thereby rotating the operation arm 67, so that the operation arm 67 is always rotated. The culm collecting device 38, which is set to the culm collecting posture, is automatically changed to the releasing posture for every predetermined distance.

In the embodiment of the present invention configured as described above, the airframe traveling in a state where the planting streak of the stem culm to be planted in the field is located between the left and right weeds 32, 33,
The stems and stems that passed between the two plants 32 and 33 are transported by the conveyor belt 29.
Thus, it is cut by the cutting blade 28 while being conveyed backward while being brought closer to the cut ground side. Then, the mowed material is released in a laid-down state toward the cut ground side and collected by the culm collecting device 38. And the culm device 38
In the manual state in which the switching pin 63 has been pulled out, the culm device 38 is brought into the release position with the extension of the working cylinder 40 by squeezing the manual operation lever 55 at the stage when the stem culm is collected by a predetermined amount, and the culm is collected. The stem will be released to the field, and if the manual operation lever 55 is released again, the culm device 38 will return to the culm posture.

On the other hand, in the automatic state where the switching pin 63 is immersed, the axle
The cam 62a, which is rotated by the power of 4a, comes into contact with the roller 67a every time the axle 4a rotates a predetermined time to rotate the operating arm 67 connected to the hydraulic valve 6, thereby always collecting the culm posture. The culm device 38 will automatically change to the release position every time a predetermined distance is traveled, that is, every time the stem culm is collected by a predetermined amount,
After releasing the collected culm to the field, the culm automatically returns to the culm posture. Further, in the automatic state, when performing the body rotation or avoiding an obstacle, if the manual operation lever 55 is squeezed, the culm device 38 is shifted to the release posture in preference to the operation of the automatic release mechanism. Will rise.

As described above, in the embodiment in which the present invention is carried out, the stem culms that have been mowed and released in the shape of lodging on the already-mown ground side are collected, and a part of the stem culm is released to the field again. In this case, however, the change of the culm collecting device 38 to the release position can be performed by setting the switching pin 63 to the automatic position so that the reaper 1 can be moved to the predetermined distance without manual operation. It is automatically performed every time the vehicle runs, that is, every time a predetermined amount of stems are collected. Therefore, it is necessary to monitor the collected culm to a predetermined amount as in the past, so that it is not troublesome to work, or to change the culm collecting device to the release posture when the predetermined amount of culm is collected. You don't have to do it every time. As a result, the operation is simplified and the workability can be improved.

Moreover, the fork 45 is a low-culm posture in which the fork 45 is in a low state where the fore-and-forth is low. When the fork 45 is inverted, the fork 45 is turned over. Even if it is positioned in a low posture close to the stalk, it can avoid contact with the field scene, and can improve the culm collecting performance and the releasing performance.

In addition, since the culm collecting device 38 is automatically released every time the vehicle travels for a predetermined distance, the manual release operation by the operation of the manual operation lever 55 is prioritized over the automatic release operation. At the time of circling or obstacle avoidance, a simple operation of merely grasping and tightening the manual operation lever 55 can prevent damage to the culm collecting device 38 due to contact with an obstacle, thereby performing a stable culm collecting operation. .

Further, since it is possible to switch between the automatic discharge operation and the manual discharge operation, and this switching can be easily performed by operating the switching pin 63, the automatic-manual selection is appropriately performed to select various types. Work can be performed according to the field.

Also, since the automatic release operation of the culm collecting device 38 is canceled when the aircraft is moving backward, the culm collecting device 38 is unnecessarily released when the dismounting operation is unnecessary and the culm collecting device 38 is brought into contact with a ridge or the like. Can be prevented.

Further, a drive sprocket 58 for extracting the rotation of the axle 4a is provided at the center of the axle 4a, and an automatic release mechanism connected to the drive sprocket 58 is also housed in the internal space of the reaper 1, so that the automatic release mechanism is provided. In spite of this, there is no defect that projects to the side and affects the appearance.

In manual operation, the manual operation lever 55 is always released, and the culm device 38 is released only when the stem is collected by a predetermined amount, so that the manual operation lever 55 is released. The operability can be improved by reducing the operation frequency.

It should be noted that the present invention is not limited to the above-described embodiment, and for example, the culm collecting device 38 can be directly operated by the power taken out from the axle 4a without operating by hydraulic pressure, Further, it may be constituted by using a rotation detection sensor for detecting axle rotation, a control unit (microcomputer or the like) for operating the electromagnetic hydraulic valve based on the detection of the sensor.

[Effects] In summary, since the present invention is configured as described above, the released stems and culms are collected by the fork in the culm-posting position on the cut side of the aircraft, and the culms are collected in a predetermined amount. It is possible to measure the efficiency of post-processing work by retracting the fork to the release posture at the gathering stage and releasing it to the field, and the transformation of the fork from the culm posture to the release posture is not manual,
While the fork is automatically performed every time the vehicle travels for a predetermined distance, the fork is inverted while lifting the culm posture of the front low and high height upward and backward, and the fork collecting culm surface is directed downward. When the fork is turned over, the fore end is located on the side closer to the transport path field scene, because it is not allowed to release the stem culm collected at once at a glance Even if it is made to contact, it can avoid contact with a field scene, and can improve the culm collecting performance and the release performance.

Also, when the rotating body provided on the axle to take out the axle rotation is arranged between the wheels attached to the both ends of the axle, the automatic release mechanism is arranged to protrude to the side to increase the machine width. Such a trouble can be avoided.

Furthermore, when the automatic release operation is released when the aircraft is moving backward, the release operation is not required. It is possible to prevent a problem that the culm collecting device is damaged.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of a culm collecting device of a walking stalk culm harvester according to the present invention, wherein FIG. 1 is a front view of the reaper, and FIG. , FIG. 3 is a side view of the same uncut area, FIG. 4 is a plan view of the same, FIG. 5 is a rear view of the same, FIG. 6 is a transmission mechanism leading to the cutting blade, FIG. FIG. 8 is a cross-sectional view of a main part of a main shift shifter, FIG. 9 is a perspective view of a reaper, and FIG.
FIG. 10 is a hydraulic circuit diagram, FIG. 11 is a side view showing a culm collecting posture state of the culm collecting device, FIG. 12 is a side view showing the same discharging posture state,
FIG. 13 is a side view showing a manual operation mechanism of the culm collecting device, FIG. 14 is a cross-sectional view showing an automatic release mechanism, FIG. 15 is a side view of the same main part showing a manual state, and FIG. 16 shows an automatic state. It is a principal part side view same as the above.

Claims (3)

(57) [Claims] 1. A walking-type stem-culm-removing machine provided with means for cutting and releasing stem-culms, which trims and releases the stem-culm to a cut side of the machine body. A culm collecting device provided with a fork that can be transformed into a collecting posture for collecting the culm and a releasing posture for collectively releasing the collected stalk culm, and a fork having a culm collecting posture is provided on the culm collecting device. In providing the automatic release mechanism for automatically changing to the release position every traveling a predetermined distance based on the rotation of the axle, the fork is inclined forward and backward and high in the culm collection position, and collects on the inclined upper surface. On the other hand, in the automatic release mechanism, the automatic release mechanism is provided with a deforming means for turning the fork in the culm posture while lifting the fork upward and rearward, and transforming the collected culm surface to the discharge posture facing downward. A culm collecting device for a walking type stalk culm harvester, which is characterized in that: 2. A walking-type stem-culm-removing machine provided with a cutting-stalk-removing means for cutting and releasing a stem-culm and releasing the stem-culm to a cut side on the side of the machine body. A culm collecting device provided with a fork that can be transformed into a collecting posture for collecting the culm and a releasing posture for collectively releasing the collected stalk culm, and a fork having a culm collecting posture is provided on the culm collecting device. In providing the automatic release mechanism for automatically changing to the release position every traveling a predetermined distance based on the rotation of the axle, the fork is inclined forward and backward and high in the culm collection position, and collects on the inclined upper surface. On the other hand, in the automatic release mechanism, the automatic release mechanism is provided with a deforming means for turning the fork in the culm posture while lifting the fork upward and rearward, and transforming the collected culm surface to the discharge posture facing downward. And a shaft provided on the axle to extract the axle rotation. Body, Atsumari稈 device in ambulatory stem 稈刈 winder being characterized in that disposed between the wheels attached to the axle end portions. 3. A walking-type stem-culm-removing machine provided with means for cutting and releasing stem-culms, which trims and releases the stem-culm to a cut side of the machine body. A culm collecting device provided with a fork that can be transformed into a collecting posture for collecting the culm and a releasing posture for collectively releasing the collected stalk culm, and a fork having a culm collecting posture is provided on the culm collecting device. In providing the automatic release mechanism for automatically changing to the release position every traveling a predetermined distance based on the rotation of the axle, the fork is inclined forward and backward and high in the culm collection position, and collects on the inclined upper surface. On the other hand, in the automatic release mechanism, the automatic release mechanism is provided with a deforming means for turning the fork in the culm posture while lifting the fork upward and rearward, and transforming the collected culm surface to the discharge posture facing downward. In addition to the automatic release mechanism, the automatic release mechanism Atsumari稈 device in ambulatory stem 稈刈 winder characterized by comprising an automatic release release means for releasing the movement.