JPH0130031Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a grain header having, for example, a reel for raking in uncut grain culms and a cutting blade, a supply chamber having a reaped grain culm supply belt installed therein and connected to the header; A swing sorting device for a combine harvester, comprising a threshing section having a handling barrel and a grain selection mechanism and connected to the supply chamber, and continuously feeding reaped grain culms into the handling chamber of the threshing section for threshing. It is something.

According to the present invention, the working surface of the grain pan for shaking and sorting the grains after threshing is formed into a hem tooth-like waveform, and the vertical height of the waveform is variable, so that the grains of various grains can be separated. It is possible to always obtain the optimal working surface corresponding to the size of the diameter, and
Appropriate feeding action can be obtained in response to increases and decreases in grain flow rate, improving the separation and sorting action from foreign substances such as straw waste and the feeding action of grains, and moreover, it is easy to use when the working surface becomes clogged. It is an object of the present invention to provide a swinging sorting device for a combine harvester, which can always maintain a good working surface even when removed, and which can improve sorting performance.

An embodiment of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is an overall side view of the combine harvester, and Fig. 2 is a plan view of the same. A threshing section 7 is equipped with a threshing section mounted on the machine 1, a grain tank 7 stores grains from the threshing section 4 to be taken out via a lifting cylinder 8, and a grain tank 9 is connected to the front of the lower part of the threshing section 4 via a hydraulic cylinder 10. The reaping section 11, which is installed to be able to be raised and lowered, is a driver's cab that is provided with a driver's seat 12 and a steering handle 13, and is fixedly installed in front of the upper part of the threshing section 4.

The reaping section 9 is composed of a grain header 14 for receiving uncut grain culms, and a supply chamber 15 connected to the rear center of the header 14 for feeding the reaped grain culms to the threshing section 4. , the grain header 14 is equipped with an uncut grain culm raking reel 16, a reciprocating cutting blade 17, and a grain culm raking auger 18, and a reaped grain culm supply belt 19 is installed in the supply chamber 15; The structure is such that the cut grain culm fed from the center of the grain header 14 is fed to the threshing section 4 by the belt 19.

As shown in FIG. 3, the threshing processing mechanism 5 is installed inside the handling room 20, and has a plurality of horizontally mounted shafts 21, 22, 23, 24, which are horizontally mounted in the front and back, perpendicular to the direction of movement of the machine. 1st to 4th handling cylinders 25, 26, 2
7, 28, and each of these handling cylinders 25, 26, 27, 2
The first to third beaters 29, 30, 31, which are dust removal cylinders, are arranged at the upper part of the center between the two, and the first to third beaters 29, 30, 31 are arranged at the lower circumferential side of each of the above-mentioned handling cylinders 25, 26, 27, 28, respectively. 1st to 4th concave 32, 3
3, 34, 35, and each of the above-mentioned beaters 29, 30, 3
1, the front and rear handling cylinder concave 32, 33, 34, 35 are respectively provided at the lower part of the drum, and each beater 29,
Beater grates 36, 37, 38 are provided at the lower parts of 30, 31, respectively, and are interposed between the terminal ends and starting ends of the front and rear handling cylinder concave 32, 33, 34, 35.
and a rotary separator 39 and a concave 40 arranged behind the fourth handling cylinder 28 and the fourth concave 35, and these handling cylinders 25, 2
6, 27, 28 and concave 32, 33, 34,
35, beaters 29, 30, 31, beater grates 36, 37, 38, etc.
1 meandering up and down and continuous back and forth.

In addition, a swing sorting board 44 is horizontally suspended above the first and second conveyors 42 and 43 and swings back and forth.
The oscillating sorting mechanism 6 is composed of a wind sorting fan 45 that is a winnowing device that sends sorting air to the sorting board 44, and a grain pan 46 that is a feed pan, a chaff sheave 47, and a grain sieve 48 are moved to the oscillating sorting board 44. Prepare for.

Further, the grain tank 7 is provided with a lateral discharge auger 49 at the bottom for taking out the grains to the outside, and an engine room 51 in which an engine 50 is installed is provided at the rear of the tank 7.

As shown in FIGS. 4 and 5, the grain pan 46 of the oscillating sorting board 44 is made of a piece of flexible flat body 52 such as canvas, and its working surface is formed into a hem-tooth waveform. , upper and lower support frame plates 53, 54, 55 disposed on the left and right sides of the aircraft, respectively;
56 has round bar-shaped horizontal bars 57 horizontally mounted in multiple rows in the front-rear direction, and these horizontal bars 57 support the planar body 52. Each of the horizontal bars 57 is formed into a gate shape, and one leg 57a is inserted into the insertion hole 58 of the left and right upper support frame plates 53, 55, and the other leg 57
b is the insertion hole 59 of the left and right lower support frame plates 54, 55.
The left and right and top and bottom frame plates 5 are inserted from one side and fixed on the other side with a clip 61 through a backing plate 60.
3, 54, 55, and 56 are mutually connected, and both legs 57a, 57b of the horizontal crosspiece 57 are shifted back and forth in an inclined state, so that a plurality of horizontal crosspieces 57 are arranged in multiple rows in the front and back direction in the upper and lower right and left directions. part support frame plates 53, 54,
55 and 56, and these horizontal beams 5
The plane body 52 is wound between the leg portions 57a and 57b of the grain pan 46 in a hem shape to form the working surface of the grain pan 46.

In addition, the lower support frame plates 54, 56 are fixedly supported on the fuselage side, and the upper support frame plates 53, 55 are movable.
A locking plate 62 and an upper support frame plate 53, 55 fixed to the
A tension spring 63 is stretched between the plane body 52 and the spring force of the spring 63 is biased in a direction that increases the vertical height H of the waveform of the plane body 52, so that the plane body 52 is always kept under tension. There is.

Furthermore, upper and lower support frames 53, 54, 55, 56
A stopper 64 for regulating the expansion of the vertical height H is installed between them, while a bracket 6 is installed between one end of the planar body 52 between the left and right lower support frames 54 and 56.
When the vertical height H is expanded, the planar body 52 wound around the roll shaft 65 is let out and the vertical height H is increased. When contracted, it is configured to be wound around a roll shaft 65 by operating a handle 66.

The present embodiment is constructed as described above, and uncut grain culms are introduced into the grain header 14 via the reel 16, and the base of the uncut grain culms is cut by the cutting blade 17, and the grain header The reaped grain culm is fed from the central part of 14 into the supply chamber 15 via the grain culm raking auger 18, and the reaped grain culm is fed to the handling chamber 20 of the threshing section 4 by the reaped grain culm supply belt 19, The grains are sequentially threshed by the handling cylinders 25, 26, 27, and 28, and the grains are sorted by a grain pan 46, a chaff sieve 47, and a grain sieve 30, and only the grains are taken out into the grain tank 7.

During such work, when the variety of grain to be harvested changes and its grain size increases, or the amount of grain supplied to the threshing section 4 increases, the sorting and feeding action of the grain pan 46 becomes insufficient. In case,
The vertical height H of the waveform of the plane body 52 is enlarged and adjusted as shown by the imaginary line in FIG. 4, and as a result, the plane body 5
The grain catching grooves A formed in step 2 are enlarged to facilitate the sorting and feeding action, thereby improving the sorting performance.

As is clear from the above embodiments, the present invention is such that the working surface of the grain pan 46 for shaking and sorting grains after threshing is formed into a hem tooth-like waveform, and the vertical height H of the waveform is variable. Therefore, it is possible to always obtain the optimum action surface that corresponds to the grain size of each grain, and also to obtain an appropriate feeding action that corresponds to increases and decreases in the grain flow rate. The separation and sorting action and grain feeding action can be improved, and when the working surface becomes clogged, it can be easily removed and the working surface can always be kept in good condition.
It has remarkable effects such as improved sorting performance.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is an overall side view of the combine harvester, Fig. 2 is a plan view thereof, Fig. 3 is a cross-sectional explanatory view of the threshing section, and Fig. 4 is a main part of the combine harvester. The side view and FIG. 5 are exploded views. 46... Vertical height of Glenpan, H... (waveform action surface of Glenpan).

Claims (1)

[Scope of utility model registration request] A swing sorting device for a combine harvester, characterized in that the working surface of a grain pan for swinging and sorting grains after threshing is formed into a hem-tooth waveform, and the vertical height of the waveform is variable.