JPS5915867Y2 - Stem culm conveyance structure of a pulling reaper - Google Patents

Description

[Detailed description of the invention] The present invention is a lifting device in which an auxiliary conveyance device with a front side portion as a conveyance path is disposed at the rear of the lower part of a lifting device with a lifting path inclined rearward and upward. This invention relates to a stem culm conveying structure of a reaping machine.

Generally, the auxiliary conveyance device is arranged in an inclined position with the conveyance terminal end located above the cutting blade and the conveyance start end located in front of the conveyance terminal end, and the auxiliary conveyance device By locking and horizontally feeding the upper and lower middle parts so as to pull them backwards, and cutting the base of the plant with a cutting blade, it is possible to prevent the reaped stem culm from falling forward or becoming disordered.

However, if the stem culm is long, the auxiliary conveyance device may act while the upper part of the stem culm remains supported by the pulling device, and in this case, the stem culm is retained and bent by the retaining claw of the auxiliary conveyance device. In this state, the plants were subjected to tension in the direction of the culm length, and sometimes the plants were pulled out of the field.

This invention aims to eliminate such problems, and its feature is that the stem culm to be harvested is placed on the top of the auxiliary conveyance device from the end side in the left and right width direction of the machine to the center. A cover is provided with a guide edge that guides the auxiliary conveyance device toward the side, and the relative position of the conveyance surface of the auxiliary conveyance device and the guide edge of the cover is determined such that substantially the entire conveyance surface of the auxiliary conveyance device is exposed from the cover. and a second attitude in which the transport start end side of the transport surface of the auxiliary transport device is covered by the cover, and only the terminal end side is exposed from the cover. It is characterized by a structure that can be changed freely.

In other words, in the case of a short culm, by setting the stem culm in the first position in which almost the entire conveyance surface of the auxiliary conveyance device is exposed from the cover, the stem culm can be pulled up, immediately received by the auxiliary conveyance device, and pulled backwards. By transporting the culm horizontally, it is possible to transport the culm without tipping forward or causing any disturbance immediately after harvesting.In addition, in the case of long culms, the second culm with only the terminal end of the transport surface of the auxiliary transport device exposed from the cover can be used. By adjusting the position, the start timing of the auxiliary conveyance device is slightly delayed, and the middle of the stem culm, whose upper part is locked and supported by the pulling device, is strongly locked with the locking claw of the auxiliary conveyance device. It is now possible to prevent troubles such as bending the stem culm forward or pulling the stem culm out of the field due to the locking tension.

In particular, in the present invention, a cover is provided on the upper part of the auxiliary conveyance device, and the cover is provided with a guide edge that guides the stem culm to be harvested from the end side to the center side in the left and right width direction of the machine, and the auxiliary conveyance device for this cover is provided. Since the amount of protrusion of the culm can be changed, if there is unevenness in the left and right direction of the planted stem culms planted in a straight line, for example, there is a planted stem culm that is deviated towards the outside of the mechanism. If the cover is not provided, the auxiliary conveyance device will act from the outside of the machine structure rather than the stem culms planted in a straight line, which will cause the position of action in the longitudinal direction of the machine to shift slightly. However, since a cover is provided, the deviated stem culm can be guided to the position of the planted stem culm in a straight line, and then the auxiliary conveyance device can be applied, so that the deviation in the longitudinal direction of the machine can be corrected. , good elongation of the stem culm can be expected.

Next, an embodiment of the present invention will be described using a pull-up reaping section of a combine harvester as an example.

A horizontally elongated distribution transmission case 3 is fixed to the front end of the main transmission case 2 which is pivotally supported on the front part of the traveling body 1 so as to be able to swing up and down and protrudes forward. Support rods 4, 5, and 6 extend forward from the center, and a weeding tool 7. 8. 9
It is fixed.

The first and second lifting devices 10 are attached to the support rods 4 and 6.
, 11, and the upper end of this case is fixed to the lifting transmission case 12.13 extending upward from the distribution transmission case 3.
The lifting paths 14, 15 of the lifting device 10.11 are arranged to be inclined rearward and upward.

Further, a clipper-shaped cutting blade 16 is provided immediately before the distribution case 3.
is the provision.

21. The first and second auxiliary conveyance devices 19.20 are wound around the distal end of the transverse conveyance transmission shaft 17.18 which protrudes upwardly and forwardly from the middle portion of the distribution case 3. 22 is provided.

The second auxiliary conveyance device 20 is pivoted to the front end of an arm fixed to the distribution case 3 so that its starting end sprocket 23 is located on the back side of the second lifting device 11, and is provided with a protruding pawl 25. (Both sprockets) 22.23
The front side between both sprockets 1-22 and 23 is formed into a conveyance path 42.

The first auxiliary conveyance device 19 has a starting end sprocket 28, which is a wheel, wrapped around the free end of an arm 27 rotatably supported on the distribution case 3 around its transmission shaft 17; A belt 26 with protruding pawls 25 is wrapped around both sprockets T-21, 28, and both sprockets T-21,
The front side between 28 and 28 is used as a conveyance path 43.

Further, at the base end of this swinging arm 27, a regulating device 31 composed of a long hole 29 and a pin 30 is provided between it and the distribution case 3, and this starting end sprocket 28 is connected to the first pulling device. The first attitude is located near the back of the conveyance path 14 of No. 10, and the conveyance action surface 26a thereof is located in front of the terminal sprocket 21, and both sprockets 21, 2
8 is placed on the cutting blade 16 and is regulated so as to be able to swing to a second position in which the blades are arranged side by side.

A coil spring 32 is interposed between the base end of the swing arm 27 and the distribution case 3, and the spring 32 biases the swing arm 27 in the direction toward the first attitude.

A swing cover 33 is fixed to the swing arm 27 and covers both the sprockets 2L28 and the belt 26 wound around the sprockets 2L28.

Note that the second auxiliary conveyance device 20 is also provided with a similar device.

34 is a fixed cover fixed to the distribution case 3, and is provided directly above the first auxiliary conveyance device 19,
The portion 36 located above the terminal end sprocket 21 is formed so that its periphery extends away from the sprocket 21 toward the rear.

Further, the starting end front side 35 is disposed on the upper side in the conveying direction than the starting end sprocket 28 in the first posture, and the distance between the cutting width end in the first posture and the starting end of this conveying path 14 is adjusted to the fixed cover 34. This is to prevent leakage of the stem culm.

Further, the intermediate front edge 37 is curved more rearward than the conveyance path 14 in the first attitude, so that the front half of the conveyance path 14 in the second attitude is located below the cover 34. This portion is configured to act as a guide for guiding the stem culm from the lateral outer side of the fuselage to the center of the fuselage.

A lateral cover 38 is formed along the lateral edge of the fixed cover 34 on the starting end side.

With the structure described above, when the stem culm is to be transported laterally while it is locked in the lifting path 14 due to the length of the stem culm, the resistance causes the first auxiliary support to move against the spring 32. The conveying device 19 is moved to the second posture side to reduce this resistance and prevent the stem culm from falling sideways or bending.

39 is a vertical conveyance device, and both auxiliary conveyance devices 19°20
The stem culms collected in the threshing device 40 are sent to the threshing device 40.

Note that if the total weight of the swinging arm 27, starting end sprocket 28, and swinging cover 33 is large, the swinging center of the arm 27 will be tilted forward, so this weight alone will move the starting end sprocket 28 to the first position. Since the biasing force for directing can be obtained, it is not necessary to provide the spring 32.

Further, the swinging operation of the swinging arm 27 may be manually performed by the operator.

As the operating device, a known operating device including a release wire and a handle, or an electrically or hydraulically known operating device may be used.

In providing the spring 32 in the above embodiment, as shown in FIG.
1 may have a cylindrical shape, and the spring 32 may be placed inside.

Further, the present invention is not limited to combine harvesters, but can be similarly configured to binders for multi-row cutting.

[Brief explanation of drawings]

The drawings show an embodiment of the stem culm conveying structure of the pull-up reaper according to the present invention, in which Fig. 1 is a side view of the front part of the combine, Fig. 2 is a plan view of the front part of the combine, and Fig. 3 is the first auxiliary. FIG. 4 is a plan view showing a part of the first auxiliary transport device, and FIG. 5 is a longitudinal front view showing another part of the first auxiliary transport device.

Claims (1)

[Scope of utility model registration request] At the rear of the lower part of the lifting device 10, which has a lifting path 14 inclined rearward and upward, a ring body 2 is attached at the starting end side in the conveying direction.
8 and the winding on the terminal end side in the conveying direction disposed above the cutting blade 16 wraps the conveying belt 26 over the wheel body 21, and the auxiliary conveying device 19 uses the front side of the conveying belt 26 as the conveying path 43. In the stem culm conveying structure of the pull-up reaper, a guide edge 37 is provided on the upper part of the auxiliary conveying device 19 to guide the stem culm to be reaped from the end side to the center side in the left and right width direction of the machine body. At the same time, the relative position of the conveying surface 26 a of the auxiliary conveyance device 19 and the guide edge 37 of the cover 34 is adjusted so that substantially the entire conveying surface 26 a of the auxiliary conveyance device 19 is closer to the cover 34 . The first posture is exposed and located on the front side in the direction of movement of the aircraft, and the transport start end side of the transport action surface 26a of the auxiliary transport device 19 is covered by the cover 34, and only the terminal end side is exposed from the cover 34. A stem culm conveying structure for a pull-up reaper, characterized in that the structure is configured to be changeable between a second posture and a second posture.