JPH0613675Y2 - Guide structure of culm transport device in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a guide structure in a combine culm conveying device that receives culm discharged from a threshing unit and conveys it toward the rear of the machine.

[Problems to be Solved by Prior Art and Invention] In general, in this kind of combine, a lower cutter drop opening is formed in a culm-conveying chain that receives culm discharged from the threshing unit and conveys the culm to the rear of the machine. Swing between the first position in which the culm is moved downward to guide it to the cutter, and the second position in which it is moved upward to allow the cutter drop port to be closed to allow the culm to be conveyed toward the end of the conveyance. A device provided with a switching plate that can be switched and changed is known, for example, from Japanese Utility Model Publication No. 56-36250.

Conventionally, however, in these, the swing support shaft of the switching plate is
There is also a structure that cantilevered laterally from the support frame of the culm-conveying chain, so the strength is weak, so the culm conveyed on this swing support shaft is caught and the culm-conveying is carried out. This is a problem because it has the drawbacks of being stagnant and disturbing the transportation posture.

[Means for Solving the Problem] The present invention was devised with the object of providing a guide structure in a combine culvert transporting device that can eliminate these drawbacks in view of the above circumstances. First posture to guide the culm to the cutter by opening the lower cutter drop opening on the swing support shaft protruding from the support frame of the culm transport chain that receives and transports the culm from the threshing section. In the combine culvert transporting device in which the switching plate is pivotally supported so as to be transformed into the second posture in which the cutter drop port is closed and the drainage is transported to the transport end side. In arranging a guide body that guides the transfer culm toward the switching plate in front of the swing support shaft, the guide body has a front end edge higher than the swing support shaft and a side edge portion of the guide frame. Is supported integrally with the rear edge of the The shaft is rotatably supported.

With this configuration, the present invention allows the culms to be selectively supplied to the rear transport end side and the lower cutter side by changing the posture of the switching plate, while the switching plate swings. The strength of the dynamic support shaft can be measured, and at the same time, the culm can be reliably prevented from being caught on the swing support shaft.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a culm-conveying chain that receives culm that has been threshed in a combine threshing section and conveys the culm to the rear of the fuselage. The culm-conveying chain 1 is provided in an inclined shape in a plan view so that it is located closer to the cut-ground side toward the conveying end side. A disc type cutter 2 is disposed below the end of the conveying end of the culm conveying chain 1. Reference numeral 3 denotes a support frame for the culm-conveying chain 1, and the support frame 3 has a support shaft (corresponding to a swing support shaft of the present invention as described later) 4
Are integrally supported so as to project in the left-right direction. The support shaft 4 includes switching plates 5 and 6 on the stocker side and the tip side.
The base ends of the are pivotally supported. on the other hand,
Reference numeral 7 denotes a switching lever, which is linked to the switching lever 7.
The switching plates 5 and 6 are attached to the swinging arm 9a provided on the operating rod 9 which is interlocked and connected via the switching lever 7, and the operating rod 9 is moved to the fulcrum shaft 9b by the switching operation of the switching lever 7.
By swinging back and forth around the fulcrum as a fulcrum, the switching plates 5 and 6 are moved downward to regulate the rearward transfer of the culm, and the drop port 1 of the cutter 2 is moved.
It is possible to transform into a first position in which 0 is opened to guide the culm to the cutter 2, and a second position in which the culm is moved upward to close the drop port 10 and allow the transfer of the culm to the rear transportation end side. It has become.

A link 11 and a rod 1 are provided at the stock base side end of the operating rod 9.
The actuating plate 13 is interlocked and coupled via 2. The operating plate 13 swings around a support shaft 13a as a fulcrum, and the operating plate 13 is pivotally connected to one ends of an operating arm 14 and an operating rod 15, respectively. Reference numeral 16 denotes a stock base side guide plate, which is disposed below the stock base side shield plate 17, and is provided on the lower surface of the guide plate 16 along the edge of the culm transport chain 1. The connecting rod 18 is integrally provided via a bracket 18a. And connecting rod 18
The stocker side guide plate 16 is interlockingly connected to the actuating plate 13 by pivotally connecting the front end of the actuating arm 14 to the distal end of the actuating arm 14. Further, the rear end portion of the connecting rod 18 is below the culm transport chain 1 and is directed toward the transfer direction of the culm transport chain 1 on a substantially recessed culvert rail 19 that is elastically held upward. It is connected to the rear end of the switching rail 20 which is slidably provided. When the switching plates 5 and 6 are in the first posture by the operation of the switching lever 7 described above,
The stock-side guide plate 16 is accommodated below the stock-side shield plate 17 and the drop port 10 is in an open state. On the other hand, the switching rail 20 is also located in the front and overlaps with the drainage rail 19. However, when the switching plates 5 and 6 are transformed into the second posture, the stocker side guide plate 16 and the switching rail are rotated by the rotation of the operating plate 13 around the support shaft 13a. 19
Means that the drop port 10 is closed by moving backward in parallel with the transfer direction of the culm transport chain 1, whereby the stocker side guide plate 16 causes the stocker of the culm transport chain 1 to move. The side part serves as a guide for transferring the culms, and the switching rail 19 serves as a guide for holding the culms.

Further, 21 is a side plate provided on the side of the cut land facing the fourth flow plate 22 provided at the rear of the threshing part, and the upper part of the side plate 21 is arranged below the fourth flow plate 22. The front side surface 21a, the middle side surface 21b, and the middle side surface 21b, which are continuously arranged in a valley fold shape so as to guide the fourth object down to the rocking sorting body 23 side.
And the rear side surface 2 which is continuously formed in a mountain fold shape over the ridge line L at the rear edge.
It is composed of 1c, but the rear side 2 after crossing this mountain
A tip end side guide plate 24 is pivotally connected to a rear position of 1c with a support shaft 24a as a fulcrum. The tip end side guide plate 24 has the tip of the operating rod 15 pivotally attached to an arm 24b integrated with the tip end guide plate 24. As described above, the switch levers 7 are operated so that the switch plates 5 and 6 are in the first position. If it is, the rear side face 21c
From the tip end side shielding plate 25 extending rearward from the tip, and when in the second posture, it is rotated backward so as to be substantially parallel to the culm conveying chain 1 and the falling opening. It is configured to guide the rear end of the culm tip in a closed posture in which the tip side portion of 10 is closed.

Further, reference numeral 26 is a plate-shaped guide body which is provided in front of the swing support shaft 4 and is provided on the stocker side of the culvert transport chain 1. The guide body 26 has a front end edge which is the support shaft 4. It is located at a higher position than that and is arranged to guide the tip of the culm toward the switching plate 5 side on the lower surface, but the right edge thereof is integrally fixed to the support frame 3 26a, and The rear edge rotatably bears the tip end of the support shaft 4 on the stocker side, and the guide body 26 is thus provided so as to extend from the support frame 3 to the support shaft 4. As a result, the support shaft 26 is integrally supported by the support frame 3 via the guide body 26. Further, the front end edge of the guide body 26 is curved upward to form a guide port for the culm stock root.

In the figure, reference numeral 27 denotes an opening / closing plate that is closed when the switching plates 5 and 6 are in the first position and is open when the switching plates 5 and 6 are in the second position. Support shaft 9 to release to
Is linked to. Further, 28 is a switching plate 5,
A spring rod for holding the culm is provided in 6 to positively promote the fall of the culm into the drop port 10 when the switching plates 5, 6 are transformed into the first posture. On the other hand, 29
Is also a spring rod for pressing the culm, but the spring rod 29 is integrally mounted on the support frame 3 so as to be located between the pair of the culm conveying chains 1 arranged in parallel and project downward. And, with this spring rod,
When the cutter is used, the culms which are to be carried to the rear by the culm transport chain 1 are reliably separated and are positively guided to the drop port 10.

In the embodiment of the present invention configured as described above, the culms that have undergone threshing in the threshing section are received by the culm-carrying chain 1 and conveyed rearward. Then, if the switching plates 5 and 6 are switched so as to be in the first posture side, the culms that are nipped and conveyed are supplied to the drop port 10 and fall into the cutter 2, where they are shredded and discharged outside the machine. Will be done. On the other hand, when the switching lever 7 is operated so that the switching plates 5 and 6 are in the second position, the stocker side guide plate 1 is changed at the same time when the switching plates 5 and 6 are changed to the second position.
6, and the switching rail 20 is moved in parallel rearward, and the tip side guide plate 24 is rotated rearward so as to be in the closed posture to close the drop port 10, and the culm is the transport end portion of the culm transport chain 1. It will be transported to and discharged outside the machine.

In this embodiment of the present invention, the culms received from the threshing section are changed by the changeover plates of the changeover plates 5 and 6.
Although it is possible to freely select whether to shred after cutting with the cutter 2 or to discharge the shreds as it is, in this case, the guide member 2 is provided in front of the swing support shaft 4 of the stocker side switching plate 5.
6 is arranged to guide the drainage stock base to the switching plate 5 side to smooth the drainage transfer, but the guide body 26 has a front edge higher than the swing support shaft 4. Since it is provided so as to reach the swing support shaft 4 from the above state, it is effective that the drainage catches on the swing support shaft 4 and the drainage transfer is stagnant or the transfer posture is disturbed as in the conventional case. Can be blocked.

Moreover, since the guide body 26 is configured to support and support the swing support shaft 4 projecting from the support frame 3 in a cantilever manner, the guide body 26 and the swing support shaft 4 are supported by the support frame 3. As a result, the rocking support shaft 4 including the guide body 26 is greatly improved in strength, and even if the rocking support shaft 4 is a cantilever, it is sufficient. It will be possible to secure sufficient strength. Further, since the strength up of the swing support shaft 4 can be effectively utilized by the guide body 26 which prevents the culms from being caught on the swing support shaft 4, a separate reinforcing member is not particularly required. Therefore, the number of parts can be reduced and the members can be commonly used.

In addition, since the bearing of the swing support shaft 4 of the guide body 26 is supported by the tip of the support shaft in this product, it is effective to prevent culms from entering between the guide body 26 and the swing support shaft 4. Can be prevented.

Although the guide body 26 is formed of a plate body, the present invention is not limited to this, and may be formed of, for example, a rod-like body. It suffices that the side edge portion is integrally supported by the support frame, and the rear side edge portion rotatably supports the swing support shaft, which is higher than the shaft.

Further, in the embodiment, since the spring rods 29 are provided between the left and right culm transport chains 1, the culms that are about to be carried to the rear by the culm transport chain 1 when the cutter is used are the culm transport chains. It is forcibly pulled away from No. 1 and falls into the drop port 10, and accordingly, the cutter performance is improved and the cutter clogging is surely reduced, which is convenient. Here, the number of spring rods 29 is not limited to one as in the embodiment, the number of spring rods 29 may be set arbitrarily, and the shape may be plate-like instead of rod-like.

[Advantages] In summary, since the present invention is constructed as described above, the swinging deformation of the switching plate provided on the swinging support shaft projecting from the support frame of the drainage conveying chain causes Although it is possible to select whether to cut the culm or convey it to the rear as it is, the front edge is higher than the swing support shaft, the side edge is integrally fixed to the support frame, With the guide body provided so that the side edge portion swingably supports the swing support shaft, the culms are guided without being caught by the swing support shaft. As a result, it is possible to surely eliminate the problems such as the conventional slag discharge conveyance being stagnant or the conveyance posture being disturbed, and it is possible to perform orderly culvert discharge conveyance.

Moreover, the rocking support shaft has a strong reinforcing structure in which it is directly supported and held by the guide frame on the support frame. Therefore, even if the rocking support shaft is a cantilever, the guide body is effective. By utilizing this, the rocking support shaft can be reinforced, and in addition to the reliable operation of the switching plate, the structure can be simplified.

[Brief description of drawings]

FIG. 1 shows an embodiment of a guide structure in a combine culvert transporting apparatus according to the present invention. FIG. 1 is a plan view of the combine rear culvert transporting apparatus, and FIG. FIG. 3 is a side view of a main part showing a rearward transport state, FIG. 4 is a perspective view of the main part, FIG. 5 is a rear view of the culm transport chain part, and FIG. 6 is a side plate part. FIG. 7 is a perspective view of a main part and FIG. 7 is a perspective view of the main part. In the figure, 1 is a culm-conveying chain, 2 is a cutter, 3 is a support frame, 4 is a swing support shaft, 5 is a switching plate, 10 is a drop port, and 2
6 is a guide body.

Claims (1)

[Scope of utility model registration request] 1. A swinging support shaft projecting from a supporting frame of a culm transport chain for receiving and transporting culm from a threshing section, and an opening for a cutter drop port below is provided to guide the culm to the cutter. Combine culvert transporting device with a switching plate pivotally supported so that it transforms into a first posture and a second posture in which the cutter drop port is closed to allow transport of the culvert to the transport end side. In disposing a guide body for guiding the transfer culms toward the switching plate in front of the swing support shaft of the switching plate,
In the guide body, the front end edge is higher than the swing support shaft, the side edge portions are integrally supported by the support frame, and the rear side edge portion rotatably supports the swing support shaft. The guide structure in the combined culm drainage conveyor device.