JP2012231714A - Swing-sorting device of thresher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim at the improvement of sorting performance by effectively performing the sieve-sorting treatment of a sorting shelf.SOLUTION: A winnower (18) is installed below in the front part of a swing-sorting shelf (10) for receiving and swing-sorting the thresh-treated materials delivered from a threshing chamber (3), and a dust-sucking fan (21) above in the rear part of the swing-sorting shelf (10) to extend out a first sieve-sorting shelf (7) from a discharged straw-discharging port (6) part formed at the rear end of the threshing chamber (3) in rear direction, and installing a second sieve-sorting shelf (13) at the upper position of the swing-sorting shelf (10) and also at the lower directional position than the first sieve-sorting shelf (7), also a third sieve-sorting shelf (14) at the rear directional position of the swing-sorting shelf (10) to arrange the rear part of the first sieve-sorting shelf (7) and the front part of the second sieve-sorting shelf (13) by overlapping vertically, and to arrange the rear part of the second sieve-sorting shelf (13) and the front part of the third sieve-sorting shelf (14) by overlapping vertically.

Description

  The present invention relates to a threshing apparatus.

  Conventionally, for example, as disclosed in Patent Document 1, a dust-removed material such as swarf is received and screened at a position behind the rear plate of the handling chamber and on the extension line of the handling cylinder receiving net. A sieving device is provided.

JP 2004-16200 A

As the crops with higher wetness were threshed, more swarf was generated, and a burden was imposed on the sieve selection process. Thus, sufficient treatment could not be expected only with a conventional sieving apparatus.
The problem to be solved by the present invention is that a sieve sorting shelf provided at the rear of the handling chamber, a sieve sorting shelf provided at the upper part of the swing sorting shelf, and a sieve sorting shelf provided at a rear portion of the swing sorting shelf are used for sieving. The purpose is to make the sorting process effective and improve the sorting performance.

In order to solve the above problems, the present invention has taken the following technical means.
In other words, the invention according to claim 1 is provided with a tang (18) below the front of the swing sorting shelf (10) for receiving and sorting the threshing product from the handling chamber (3), and the swing sorting shelf. (10) A dust-absorbing fan (21) is provided above the rear part, and the first sieve sorting shelf (7) is extended rearward from the discharge outlet (6) part formed at the rear end of the handling chamber (3). A second sieve sorting shelf (13) is provided above the swing sorting shelf (10) and below the first sieve sorting shelf (7), and at the rear portion of the swing sorting shelf (10). Is provided with a third sieve sorting shelf (14), the rear portion of the first sieve sorting shelf (7) and the front portion of the second sieve sorting shelf (13) are vertically overlapped, and the second sieve sorting shelf (13) The threshing apparatus is characterized in that the rear part and the front part of the third sieve sorting shelf (14) are vertically overlapped.

  According to the second aspect of the present invention, a rearward inclination angle of the second sieve sorting shelf (13) is set larger than a rearward inclination angle of the first sieve sorting shelf (7), and the second sieve sorting shelf ( 13) The threshing apparatus according to claim 1, wherein a rearward inclination angle of the third sieve sorting shelf (14) is set larger than a rearward inclination angle of the third sieve.

  In the invention according to claim 3, the end portion of the first sieve sorting shelf (7) is brought close to the suction port front end portion of the dust suction fan (21) or more than the suction port front end portion of the dust suction fan (21). The threshing apparatus according to claim 1, wherein the threshing apparatus is extended to the rear.

  According to a fourth aspect of the present invention, the first sieve sorting shelf (7) is configured such that the rear side rotates up and down with a support shaft (24) in the left-right direction provided at the front of the first sieve sorting shelf (7) as a fulcrum. The threshing apparatus according to claim 1, 2 or 3, wherein the threshing apparatus is configured to move, and is provided with driving means (26) that swings the first sieve sorting shelf (7) up and down. .

  The invention according to claim 5 is configured such that the first sieve sorting shelf (7) is configured by alternately arranging a movable sieve member (7a) and a fixed sieve member (7b) swinging vertically. A threshing apparatus according to claim 4.

  According to invention of Claim 1, although the to-be-sorted object processed on the 1st sieve sorting shelf (7) contains a large amount of coarse sawdust in addition to the grain, the 1st sieve sorting shelf ( 7) Of the above swarf, coarse swarf that does not fall below the end of the first sieve sorting shelf (7) is separated from the end of the first sieve sorting shelf (7) by The first sieve sorting shelf in the swing sorting shelf (10) is successively taken over to the second sieve sorting shelf (13) and the third sieve sorting shelf (14) and falls to the rear part of the swing sorting shelf (10). It is difficult for sawdust to be mixed into the object to be processed that contains a large amount of grain transferred backward from the front side of (7), and the sorting accuracy can be improved.

  According to invention of Claim 2, although there exists an effect by the invention of the said Claim 1, from the 1st sieve sorting shelf (7) to the 2nd sieve sorting shelf (13), the 3rd sieve sorting shelf ( Since the backward tilt angle to 14) is set to be gradually increased, it is possible to lengthen the time during which the sorting wind hits the sawdust and further improve the sorting accuracy.

  According to the third aspect of the present invention, the terminal portion of the first sieve sorting shelf (7) extends toward the dust-absorbing fan (21) while achieving the effect of the first or second aspect of the invention. Thus, fine dust and the like floating above the first sieve sorting shelf (7) are quickly sucked by the dust sucking fan (21), and the dust collecting sorting performance can be improved.

  According to the invention described in claim 4, the first sieve sorting shelf (7) swings up and down while achieving the effects of the invention described in claim 1, claim 2, or claim 3. The small swarf contained in the to-be-processed object on this 1st sieve sorting shelf (7) can be floated, and the sorting effect by sorting wind can be heightened.

  According to the invention of claim 5, while having the effect of the invention of claim 4, the first sieve sorting shelf (7) includes a movable sieve member (7a) that swings up and down and a fixed sieve member. Since (7b) is provided alternately on the left and right, the object to be processed that has become a lump can be unraveled and the sorting efficiency can be improved.

Side cross-sectional view of main parts of threshing machine Longitudinal rear view of the main part Top view of the first sieve sorting shelf Side cross-sectional view of main parts of threshing machine Longitudinal rear view of the main part Longitudinal rear view of another embodiment Side sectional view of the main part of another embodiment of the threshing machine Longitudinal rear view of the main part Side sectional view of the main part of another embodiment of the threshing machine Longitudinal rear view of the main part Longitudinal rear view of another embodiment Side sectional view of the main part of another embodiment of the threshing machine Longitudinal rear view of the main part

An embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a side sectional view of a threshing machine and has the following configuration.
That is, the threshing machine 1 is configured to perform threshing processing by the handling cylinder 4 that is driven and rotated in the handling chamber 3 at the tip portion of the cereal bowl that is conveyed while holding the stock by the threshing feed chain 2. A receiving net 5 is stretched around the lower half of the handling chamber 3, and a discharge outlet 6 is opened at the end of the handling chamber 3. A dust exhaust port 8 is provided at the end of the receiving net 5 on the end side.

A straw fin 7 is provided at the rear of the handling chamber 3 as a first sieve sorting shelf that receives a processed material from the waste discharge port 6 and screens it.
Below the handling chamber 3, an oscillating sorting shelf 10 for receiving the processed product after the threshing process and sieving it while oscillating and transferring it is installed so as to be swingable in the front-rear direction. The swing sorting shelf 10 is arranged above the transfer shelf 11, the chaff sheave 12, and the chaff sheave 12 from the upper side in the sorting direction, and receives the processed material from the first sieve sorting shelf 7 for processing. A shelf (jump rack) 13 is arranged in the order of a straw rack 14 as a third sieve sorting shelf following the end of the chaff sheave 12, and a glenive 15 and a first return shelf 16 are disposed below the chaff sheave 12. The second return shelf 17 is arranged and provided.

  Also, below the swing sorting shelf 10, in order from the upper side of the sorting direction, a tang 18, a first transfer helix 19, a second transfer helix 20, and a dust suction fan 21 are provided above the dust sorting chamber. It is composed.

  Straw fin (first sieve sorting shelf) 7 and jump rack (second sieve sorting shelf) 13, jump rack (second sieve sorting shelf) 13 and Strollac (third sieve sorting shelf) 14 overlap each other in the front and rear direction. It is set as the structure provided. Further, the rearward tilt angle θ1 of the straw fin 7, the tilt angle θ2 of the jump rack 13, and the tilt angle θ3 of the stroller rack 14 are such that the rearward tilt angle is increased sequentially from the front side (θ1 <θ2 <θ3). Is set to be.

  The straw fins 7, the jump racks 13, and the stroll racks 14 are composed of a plurality of sieve members 7a ..., 13a ..., 14a ... arranged in the left-right direction, and the sieve members are juxtaposed linearly in a plan view, In addition, in the example of FIG. 1, the operation upper surface is formed in a rack shape. The sieving member 7a is formed of a thin leaf spring, and the separation effect can be further enhanced if the sieving member 7a is also swayed in the left-right direction due to vibration of the airframe.

  The first sieve sorting shelf 7 extends the end side portion to the vicinity of the front end portion of the dust-absorbing fan 21 or to the rear thereof, thereby making it easy to absorb dust and the like floating upward. The end portion of the first sieve sorting shelf 7 is positioned above the end of the chaff sheave 12.

  The first sieve sorting shelf 7 is configured such that the rear part swings up and down with the support shaft 24 in the left-right direction of the front part as a fulcrum, and the first sieve sorting shelf 7 is forcibly forced by appropriate driving means. Interlocking configuration is made to swing drive. That is, the straw fin 7 moves up and down around the support shaft 24 by the reciprocating swing of the swing arm 25 and the reciprocating motion of the rod (driving means) 26. In addition, about this rocking | fluctuation drive source, power transmission can be obtained from arbitrary places, such as the near dust suction fan 21, the 1st transfer spiral 19, and the 2nd transfer spiral 20.

  The support shaft 24 can be removed from the left side of the machine body. Further, above the support shaft 24, there is provided a dust cover preventing shaft cover 31 that is inclined rearward and downward from the handling chamber side. The shaft cover 31 serves as a stopper that regulates the swing upper limit position of the fin 7a.

  Further, as shown in FIG. 3, the first sieve sorting shelf 7 is provided with a movable sieve member 7a swinging up and down and a fixed sieve member 7b fixed to a support member 27 fixed to the machine frame alternately on the left and right. In addition, the diffusion and separation effect of sawdust can be further enhanced. The fixed sieve member 7b is preferably set at an intermediate position within the vertical movement range of the movable sieve member 7a.

  Next, the embodiment shown in FIGS. 4 and 5 will be described. The sieve member (fin) 7a of the first sieve sorting shelf 7 is fixed to the rotatable support shaft 24, and the support shaft 24 and the machine frame 28 are fixed. A torque spring 29 is provided between the fins 7a so that the fins 7a can be moved up and down by vibrations of the airframe. The fins 7a are formed of round bars and the end portions of the end portions are bent upward. In addition, as a structure of a round bar fin, you may make it provide the linear fin a1 and the bending fin a2 alternately like the example of FIG. Further, if the fins 7a are made of an elastic material and are configured to swing left and right or up and down due to body vibration, the separation effect is further enhanced.

In the example of FIG. 4, a regulating member 30 that regulates the vertical movement width of the fin 7a is provided outside the vertical movement range of the fin 7a.
In the example of FIGS. 7 and 8, the first sieve sorting shelf 7 is configured by a net body 7N, and is configured to move up and down using the support shaft 24 as a fulcrum.

  In the examples of FIGS. 9 and 10, the fins 7a of the first sieve sorting shelf 7 are configured by leaf springs, and are vertically attached to the rear chamber plate 9 so as to swing left and right due to vibration of the airframe. Further, in the example of FIG. 11, the fins 7a are constituted by leaf springs, and are attached to the left and right sides so as to cause vertical shaking.

  12 and 13 are configured such that the fins 7a of the first sieve sorting shelf 7 can swing back and forth via the compression springs 33 and swing back and forth due to the vibration of the airframe. Further, the sieve sorting shelf 7 is configured to vibrate so as to cancel the vibration of the swing sorting shelf 10. In addition, the spreading | diffusion of soot waste can be accelerated | stimulated by making the rocking | fluctuation direction of the fin 7a into the diagonally upward of the forward inclination. A spring cover 34 is provided above the compression spring 33 to prevent the soot from being caught.

3 Handling chamber 6 Exhaust outlet 7 First sieve sorting shelf 7a Movable sieve member fin 7b Fixed sieve member 10 Oscillating sorting shelf
13 Second sieve sorting shelf 14 Third sieve sorting shelf 18 Kara 21 Dust suction fan
24 support shaft 26 drive means (rod)

Claims (5)

  A tang (18) is provided below the front part of the swing sorting shelf (10) for receiving and sorting the threshing product from the handling room (3), and a dust suction fan is provided above the rear part of the swing sorting shelf (10). (21) is provided, and the first sieve sorting shelf (7) is extended rearward from the discharge outlet (6) formed at the rear end of the handling chamber (3), and at the upper part of the swing sorting shelf (10). In addition, a second sieve sorting shelf (13) is provided below the first sieve sorting shelf (7), and a third sieve sorting shelf (14) is provided at the rear part of the swing sorting shelf (10). Provided, the rear portion of the first sieve sorting shelf (7) and the front portion of the second sieve sorting shelf (13) are vertically overlapped, and the rear portion of the second sieve sorting shelf (13) and the third sieve sorting Threshing apparatus, wherein the front part of the shelf (14) is arranged so as to overlap vertically.   A rear upward inclination angle of the second sieve sorting shelf (13) is set larger than a rear upward inclination angle of the first sieve sorting shelf (7), and the rear upward inclination angle of the second sieve sorting shelf (13) is set. The threshing apparatus according to claim 1, wherein a rearward inclination angle of the third sieve sorting shelf is set to be large.   The end portion of the first sieve sorting shelf (7) is brought close to the suction port front end portion of the dust suction fan (21), or extended beyond the suction port front end portion of the dust suction fan (21). The threshing device according to claim 1 or 2, characterized by the above.   The first sieve sorting shelf (7) is configured such that the rear side pivots up and down with a support shaft (24) in the left-right direction provided at the front portion of the first sieve sorting shelf (7) as a fulcrum. The threshing apparatus according to claim 1, 2 or 3, further comprising driving means (26) for swinging the sieve sorting shelf (7) up and down.   The said 1st sieve selection shelf (7) was comprised by arrange | positioning the movable sieve member (7a) and fixed sieve member (7b) which rock | fluctuate up and down alternately in the left-right direction. Threshing equipment.

Images