JPH01285113A - Harvester - Google Patents

Abstract

PURPOSE:To reduce the overall weight of a harvester by supporting the crop- treating mechanism with the main body of the harvester in the picking-up operation of the crop and keeping the balance of weight in the machine direction. CONSTITUTION:When a crop-treating mechanism is turned downward in the picking-up operation of crops, a rod-receptor 34 is shifted backward relative to the rod 32 of a weight-balance keeping mechanism 27. The rod receptor 34 strongly presses a coil spring 37 when the right and left grounding wheels are brought into contact with the ground to elastically support the right and left lifting arms and the main frame of the main body of the working machine in integrated state with the rod receptor 34, the rod 32 and the coil spring 37. Accordingly, the rear side part of the crop-treating mechanism is movably supported with the main body frame through the lift arms and the weight- balance keeping mechanism 27. The longitudinal weight balance of the whole harvester is automatically maintained by this mechanism to enable remarkable reduction of the overall weight of the harvester compared with conventional machine using a balance weight.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to harvesting, for example, picking up a harvested product such as an onion from a field, cutting the grass leaves of this harvested product, and This relates to harvesting while storing the harvested products in a container, or carrying out the harvested products to the rear or side.

(Prior Art) Conventionally, this type of harvester 8i has, for example, a harvest processing mechanism vertically movably connected to the front side of the work machine body, and a support arm protruding from the front part of the work machine body. In addition, there is a structure in which a balance weight is detachably attached to this support arm to compensate for the lack of weight on the harvest processing l11m side.

(Problems to be Solved by the Invention) In the case of the above structure, when the harvesting machine turns in the field, the harvest processing mechanism is raised relative to the working machine body and is suspended by the working machine body while turning. During harvesting work, the harvest processing tam is lowered and placed on the ground, and the harvest processing mechanism is made weight independent from the main body of the work machine.In this case, the harvest processing mechanism is When the harvesting machine rotates and when the harvesting machine is lowered to perform harvesting operations, the weight balance between the front and rear of the machine body changes significantly, so to compensate for this, a balance weight is attached to the support arm. This is what has become.

However, with this structure, the balance weight significantly increases the overall weight of the harvester, and the balance weight and its support (M construction) are required, making the structure complex and increasing costs. Furthermore, there is a problem in that it takes time and effort to attach and detach the balance weight.

Therefore, the present invention was made in view of these points, and it is possible to support the crop processing (fiction) on the work body side during harvesting work, thereby reducing the overall mold part of the harvesting work. The purpose of this invention is to provide a harvesting machine that can reduce costs and is easy to handle.

(Structure of the Invention) (Means for Solving the Problems) The harvesting machine of the present invention includes a work machine body for harvesting and processing crops, and a front part of the work machine main body that is connected to the front part of the work machine body so as to be vertically movable. a harvest processing mechanism that picks up the harvest from the l1lil field and transports it onto the work machine main body;
a cylinder device which is provided between the front side of the work machine body and the lift arm and moves the harvest processing mechanism up and down via the lift arm; The apparatus is equipped with an lff1 balance holding mechanism that supports this harvest processing l structure on the working machine main body side and maintains the front and rear weight balance.

(Function) In the harvester of the present invention, when the cylinder device is actuated, the harvest processing mechanism is moved up and down via the lift arm. During harvesting operations when the harvest processing mechanism is lowered and grounded, this harvest processing mechanism I! I! The mechanism is supported on the working machine body side via a weight balance holding mechanism, and therefore, the entire front and rear weight balance of the harvester is automatically maintained by the ff1ffi balance holding mechanism, and the harvester is
It is possible to carry out harvesting work while traveling safely while adapting to the unevenness of the ground surface.

(Example) Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 3, reference numeral 1 denotes a harvester, and this harvester 1 carries the harvested material through lower left and right lit arms 3.3 and upper left and right support arms 4.4 at the front part of the working machine body 2. Processing machines 15 are connected in a vertically movable manner.

The working machine main body 2 is provided with a crawler 7 at the lower part of the main body frame 6, and this crawler 7 is driven by a known engine 8 mounted on the upper side of the main body frame 5. 1
1 medium (not shown). Further, on the upper part of the main body frame 6, from the front side to the rear side, there is a chute body 9, a foliage processing mechanism 10 consisting of a plurality of pairs of rollers rotating inwardly in opposite directions, and a cutter mechanism. 11, horizontal feed conveyor 12
, a foliage conveyor 15 having a chute body 13 and a guide body 14 rotatable in the front and rear directions is provided. The rollers, cutter mechanism 11, traverse conveyor 12, and foliage transport conveyor 15 in each set of the foliage processing mechanism 10 are connected to the engine 8 by a known interlocking medium (not shown).
They are rotatably connected to each other via the VJ.

Further, the left and right lift arms 3, 3 are connected to the connecting frame 1.
Connecting pieces 17.17 are integrally connected to the left and right sides of the connecting frame 16 in a parallel manner rearwardly, and the left and right connecting pieces 17, 17 are integrally connected to the left and right sides of the connecting frame 16. ! ! Both ends of the horizontal rod 18 fixed between the rear ends of the moving pieces 17.
The left and right frames 19 and 19 are fixed to the intermediate portion of the main body frame 6 near the front end.

Next, two sets of mounting pieces 2, one pair at the lower left and right sides of the horizontal frame 21 fixed between the left and right frames 19 and 19, are installed.
2.23 are provided protrudingly, and a cylinder device is mounted between these two sets of mounting pieces 22 and 23 and two sets of mounting pieces 24 and 25, each pair of which is provided protrudingly from the left and right rear portions of the horizontal rod 18. 26 and a weight balance holding mechanism 27 are rotatably mounted in parallel via support shafts 28 and 29, respectively.

Thus, in the cylinder device A 26, the base of the main body 30 is rotatably mounted between the mounting g22 via the support shaft 28, and the piston rod 31
The distal end portion is rotatably pivoted between the mounting pieces 24 via the support @28. In addition, in the weight ω balance holding mechanism 27, a large-diameter support portion 33 formed at the WE portion of the rod 32 is rotatably attached between the mounting holes 23 via the support shaft 29. A rod receiver 34 is inserted and supported so that it can move forward and backward in the middle of the rod 3.
Thread groove 35 formed near the large diameter support portion 33 of No. 2
A double nut 36 is screwed onto the rod 36 so that it can be adjusted forward and backward, and a coil spring 37 is wound around the rod 32 between the double nut 36 and the rod receiver 34.

Further, the harvest processing mechanism 5 includes a ground ring 38 whose height can be freely adjusted from the front side to the rear side, a tip 39, a rear conveyor 40, a lifting conveyor 41, and an upper part of the rear conveyor 40. It is integrally constructed with a scraping conveyor 42. and an endless rotating body 40a of the rear transport conveyor 40 and the lifting conveyor 41,
41a is clockwise in FIG. 1, and the scraping conveyor 4
The endless rotating body 42b having two scraping pieces 42a is connected to the engine 8 in a known manner so as to be rotated counterclockwise in FIG. 1] They are rotatably connected via a medium (not shown). Further, a support shaft 44 is provided near the lower end of the left and right conveyor frames 43 and 43 of the lifting conveyor 41.
．． The tips of the left and right lift arms 3, 3 are rotatably supported via a shaft 44, and the left and right lift arms 3, 3 are rotatably supported via a support shaft 45.45 at an approximately intermediate portion of the left and right conveyor frames 43.43. The tips of the support arms 4, 4 are rotatably supported, and the rear ends of the left and right support arms 4.4 are connected to the left and right support frames 47 of the frame 46 on which the engine 8 of the main body frame 6 is mounted. .47 via support shafts 48 and 48 so as to be rotatable.

Next, the operation of the above configuration will be explained.

When the cylinder device 26 is actuated to contract the piston rod 31 during harvesting work or picking up work, the horizontal rod 1 between the left and right support pieces 20.
Left and right interlocking pieces 17.1 are integrated with 8 as the center of rotation.
7 and the left and right lift arms 3 via the connection frame 16
, 3 are rotated counterclockwise in FIG. 1, and the crop processing mechanism 5 supported by the left and right lift arms 3 and the left and right support arms 4. The grounding rings 38, 38 are grounded and this grounding ring 38.3
8 supports the front side of this harvest processing mechanism 5.

In addition, with the downward rotation of the harvest processing mechanism 5, the rod receiver 34 slides rearward while gradually compressing the coil spring 37 against the rod 32 of the weight bounce holding mechanism 27, and the left and right ground wheels 38 When the rod 38 touches the ground, the rod receiver 34 strongly compresses the coil spring 37 via the rod 32, and the rod receiver 34 and the rod 3
2 and a coil spring 37, the left and right lift arms 3, 3 and the main body frame 6 of the working machine main body 2 are integrally supported. Therefore, the front side portions are the left and right ground wheels 38.
The rear side of the harvest processing mechanism 5 supported by the left and right lift arms 3, 3 and the weight balance holding mechanism 27
It is movably supported by the main body frame 6 of the working machine main body 2 via , whereby the front and rear weight balance of the entire harvesting machine 1 is automatically maintained. In this case, by moving the double nut 36 back and forth in advance or as appropriate to adjust its set position, the coil spring 37 is adjusted to expand or contract, and the amount of support for supporting the rear side of the harvest processing mechanism 5 is adjusted.

Next, when the harvesting machine 1 is advanced by the crawler 7, harvested products such as onions in the field are picked up by the tip metal 39, and the harvested products are transferred to the rear conveyor 40 by each scraping piece 42a of the scraping conveyor 42. Endless rotating body 4
0a and carried in, the endless rotating body 40a sequentially conveys it to the rear, and it is carried into the carrying-in part of the endless rotating body 41a of the lifting conveyor 41 from this unloading end. Further, the harvested products are held by the locking pieces of the endless rotating body 41a, lifted up and conveyed rearward and upward, and are sequentially carried onto the chute rest 9 from this carrying-out end.

Further, this harvested product is transferred from the shoot body 9 to the foliage processing mechanism 10.
The stem vegetable processing mechanism 10 is transported to the top of the stem vegetable processing mechanism 10, and is distributed to each pair of rollers that are rotated inwardly in opposite directions. The stems and leaves of each crop are arranged in such a manner that they hang down between the rollers, and are sequentially supplied to the cutter mechanism 11 from the discharge end. The stems and leaves of this harvest are cut and removed by the cutter mechanism 11, the stem vegetables are carried out in a selected direction by the guide body 14 or the stem W, and the ya feed conveyor 15, and the harvest is carried out horizontally by the lateral feed conveyor 12. The field is conveyed in the direction shown in FIG. During a series of harvest processing operations for the harvested crops, l1lil! When the grounding wheel 38 moves up and down due to the unevenness of A, since the rear side of the harvest processing mechanism 5 is supported by the weight balance holding mechanism 27,
Harvesting 1 without the harvest processing mechanism 5 independently moving up and down
1. Adapts to the irregularities of the field as a whole, and therefore the harvester 1
Safe driving is ensured.

Next, cylinder i! When the piston rod 31 is extended by operating the i-type 26, the left and right lift arms 3.3
is rotated clockwise in FIG. 1, the crop processing mechanism 5 is rotated upward, and its left and right ground wheels 38, 38 are separated from the ground. In addition, as the crop processing mechanism 5 rotates upward, the rod receiver 34 slides forward with respect to the rod 32 of the weight balance holding mechanism 27, and the compressed coil spring 37 automatically expands. therefore,
Rod receiver 34, rod 32 and coil spring 37
Harvest processing mechanism 5 by cylinder device 26 via
is supported in a raised state, which allows the harvester 1
can be easily turned.

Next, in the embodiment described above, the case where the cylinder device 26 and the weight balance holding mechanism 27 are installed side by side on the left and right has been described, but the invention is not limited to this. For example, as shown in FIG. It may also be constructed by incorporating the mechanism 27. That is, a threaded groove 30 is formed on the outer circumference near the base of the main body 30 of the cylinder device 2G.
a, and a double nut 36 is screwed into this thread groove 30 so that it can be adjusted forward and backward, while the cylinder device 2
A flange 31a is provided near the tip of the piston 0 end 31 of 6.
This flange 31a and the double nut 36 are fixed together.
A coil spring 37 is wound between. As a result, the piston rod 31 is expanded and contracted, and the coil spring 37 is also expanded and contracted, and during the harvesting operation in which the harvested material processing R structure 5 is rotated downward, the weight balance holding mechanism 27 is operated. As in the case of , the front and rear multilayer balance of the entire fli collection machine 1 is automatically maintained.

Next, in the embodiment, the weight balance holding mechanism 27 is
Although the case where it is installed in parallel with the cylinder device 2G and the case where it is installed in the cylinder device 26 have been described, the weight balance holding mechanism 27 is not limited to this. For example, as shown in FIGS. It may be provided between the frame body 46 and the left and right conveyor frames 43, 43 of the lifting conveyor 41. That is, an extension frame 50 is provided protruding from the front part of the frame body 46, and this extension frame 5
A large-diameter support part 52 at the lower end of a rod 51 is rotatably attached to the tip soil part of the rod 51 with a support shaft 53, and an 0-rad receiver 54 is inserted and supported through the upper part of the rod 51 in a continuous manner. It is rotatably attached to the support frame 55 of the conveyor frame 43, 43 via a support shaft 5G, and a double nut 58 can be freely adjusted forward and backward through a screw W457 formed near the large diameter support portion 52 of this O-rad 51. A coil spring 59 is wound around the rod 51 between the double nut 58 and the rod receiver 54. As a result, the piston rod 31 of the cylinder device 26 is expanded and contracted, and the rod 51 of the weight balance holding mechanism 27 is moved up and down with respect to the rod receiver 55 through the expansion and contraction of the coil spring 59. During the harvesting operation when the harvester 5 is rotated downward, the weight balance maintaining mechanism 21 automatically maintains the front and rear weight balance of the harvester 1 as a whole, as in each of the embodiments described above.

〔Effect of the invention〕

According to the present invention, a weight balance maintaining gate structure is shared between the harvest processing mechanism and the main body, and this weight balance maintaining mechanism allows the harvest processing mechanism to be operated during harvesting work on the side of the main body of the work machine. Since the harvester is supported by the front and rear weights, the weight balance between the front and rear of the harvester is automatically ensured, allowing for safe driving, and the overall weight of the harvester is greatly reduced compared to conventional models with balance weights. In addition to being able to
The simple structure makes it possible to reliably reduce costs, and since there is no need to attach or detach the balance weight, it is easy to handle.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view of a harvester, Fig. 2 is a perspective view showing a support device of the same harvested material processing mechanism, and Fig. 3 is a part a to a11 of Fig. 1. FIG. 4 is a plan view showing an embodiment of the support device of the crop processing mechanism;
FIG. 5 is a side view of a harvester showing another embodiment, and FIG. 6 is a sectional view taken along line bb--b of the same. 1. Harvesting machine, 2. Working machine body, 3. Lift arm, 5. Harvest processing mechanism, 26. Cylinder device, 2
7. Weight balance maintenance mechanism.

Claims (1)

[Claims] (1) A working machine body for harvesting and processing crops, and a lift arm connected to the front part of the working machine body so as to be able to move up and down to pick up the harvested produce from the field and transport it onto the working machine body. a cylinder device that is provided between the front side of the working machine body and the lift arm and moves the harvest processing mechanism up and down via the lift arm; A harvesting machine comprising: a weight balance holding mechanism that supports the harvest processing mechanism on the working machine main body side and maintains a front-to-back weight balance during picking up of harvested crops.