JP3381346B2 - Threshing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus for a combine. 2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Application Laid-Open No. 59-166628 and Japanese Patent Application Laid-Open No. 62-14723, a handling room and a processing room are arranged side by side with each other on the left and right sides. There was a technique for sending straw waste mixed with threshing particles generated in the above to the processing chamber side, processing it and discharging it to the lower sorting shelf. [0003] In the prior art, the straw waste mixed with threshing grains supplied from the handling room to the processing chamber is used to remove spikelets and spikes that are not threshed only in the processing chamber. While the attached kernels are separated, the kernels are separated from the mesh or slits at the lower part of the processing chamber onto the sorting shelf. However, once the straw waste that has entered the processing chamber is returned to the handling room, and on the contrary, the straw waste generated on the handling room side is extremely rarely supplied or taken into the processing chamber at any position, The processing speed of straw waste generated in the handling room is slow,
There was a drawback that the processing capacity was bad, and eventually there was a drawback that the threshing performance was only evaluated poorly. [0004] The present invention employs the following technical means to solve the above-mentioned problems. That is, a handling chamber 17 in which a handling cylinder 22 that rotates downward is mounted on the inside of a bearing, and a handling chamber 8 that opens downward along the threshing chain 8 that conveys the grain stalk by sandwiching the grain stalk. The processing chamber 18 provided with a processing cylinder 25 rotating on the opposite side to the handling cylinder 22 provided along the handling chamber 17 at an upper position on the opposite side to the processing chamber 17 is installed in a sorting chamber 52. Sorting shelf 5
In the front-rear relationship between the handling chamber 17 and the processing chamber 18, the starting end of the processing chamber 18 is formed to be substantially the same as or later than the starting position of the handling chamber 17, and the ending side is handled. The processing chamber 17 and the processing chamber 1
8, and the opening communication (K) is performed over the entire region in the front-rear direction parallel to each other except for a part of the partition body 21 that partitions the partition member 8 at a predetermined interval.
At the rear end portion of the handling room 17 from the back wall of the handling room in the front-rear direction, at the front portion thereof, a spiral shape is provided that discharges the straw chips transferred in the processing room 18 toward the front of the handling room. A spiral for disposing the discharger 31 on the outer periphery of the processing cylinder, and in the rear part of the processing chamber, takes in the straw chips scraped up by the rotation of the handling cylinder 22 in the handling chamber and transfers the straw chips to the rear side of the handling chamber 17. A threshing apparatus characterized in that a transfer body 33 having a shape of a circle is provided, and the rear end side of the processing chamber and the lower sorting chamber 52 are communicated with each other. According to the present invention, the grain that has been threshed and threshed in the handling room leaks from the threshing mesh and is received on the lower sorting rocking shelf, and is further lowered while being wind-selected. And is transported to the side of the fuselage by the first spiral, lifted up by a lifting machine and taken out of the threshing machine. Among the straw chips mixed with threshing grains which are not leaked from the threshing mesh, the straw chips which are stirred upward from the lower side to the opposite side to the feed chain by the handling teeth of the handling cylinder are supplied into the processing chamber. At this time, the straw waste generated on the starting end side of the handling chamber is quickly taken into the processing chamber by a take-in spiral having a rear thrust provided on the outer periphery of the starting end of the processing cylinder, and is then planted at the front and rear intermediate portion of the processing cylinder. The processing is performed by the interaction between the processing teeth, the cutting waste blade provided in the processing chamber, and the processing net forming a part of the processing chamber. At this time, since the handling room and the processing room share a substantially free communication port with each other, straw waste in the handling room enters the processing room, and, on the contrary, straw waste and grains processed in the processing room are removed. Although it does not prevent it from being re-entered into the handling room, in reality, the diameter of the handling cylinder becomes extremely large with respect to the diameter of the processing cylinder, so that the angle of throwing straw chips at the communication port is loose. In a state in which the scraps scraped by the body are mainly taken into the processing chamber, threshing nets and threshing grains which have not yet leaked from the processing net are transferred to the rear side. That is, since the handling cylinder and the processing cylinder are reversed, and the handling chamber and the processing chamber are in open communication with each other freely, the straw waste generated in the handling chamber has a substantially 8-shaped shape in front view. It is drawn and put into the processing chamber, and a part of the processed grain is returned to the handling chamber and processed while the lump of lump is broken up. Then, when the front end portion of the rear end portion of the handling room is about 1/3 of the entire length of the handling room, the whole amount of the waste in the processing chamber is once discharged into the handling room. That is, by the spiral discharger provided on the outer periphery of the processing cylinder, the straw waste in the processing chamber is returned to the handling room in a form of being pushed forward to the opposite side to the conventional backward transfer, and the straw waste and Since the stalks are threshed while being transported to the rear side, the straw waste reduced from this processing chamber is taken into the handling chamber from above by a very large handling cylinder while colliding with each other. Then, it is transferred to the rear while being threshed, passes through the corresponding position of the spiral discharge body provided on the processing cylinder, reaches the rear side, and then, at the handling chamber end side, again, the processing cylinder Spiral transfer body provided on the outer periphery for transferring waste material into the processing room to take in the straw in the handling room, process it in the processing room, and process it to the sorting shelf below at the part that extends backward from the processing room. Release the later straw debris. The operation of the main part of the threshing apparatus will be briefly described. The handling chamber and the processing chamber are opened in substantially the whole area in the front-rear direction. Since the movement path of the threshing processed material that draws a character shape is configured, straw waste generated in the handling room is freely thrown into the processing room side, threshing, straw processing is done, and further, in the rear part of the handling room Straw chips and the like taken into the processing chamber are thrown forward in the handling chamber by the thrust by which the straw chips in the processing chamber are pushed forward by the helical discharger of the processing cylinder. The returned waste is subjected to threshing while being transported rearward by rotation of the handling cylinder in the handling room. When the movement of the straw waste in this part is viewed in a plan view, threshing is performed while moving in the handling room with approximately γ or the collapse of the figure of eight Arabic numerals, and the sorting shelf below the rear end of the handling room and the processing room extension. The treated straw is released on top. According to the present invention, since the present invention is configured as described above, the ability of threshed grains to leak into the sorting chamber and the processing speed of straw waste and the ability are further improved as compared with the conventional apparatus. In particular, since the straw waste mixed with grains, which is returned from the processing room to the handling room in the rear part of the handling room, is processed while drawing substantially γ or the figure of Arabic numeral 8, it is highly efficient threshing and straw processing. This makes it the most suitable threshing device for combine harvesters. An embodiment of a threshing apparatus for a combine as an embodiment of the present invention will be described. First, the structure of the combine will be described with reference to the overall side view and the overall plan view shown in FIGS. The vehicle body 1 on which the prime mover is mounted is provided with traveling bodies 2 and 2 in which endless bands are wound between drive wheels, driven wheels and rolling wheels at lower left and right sides. A driving control frame 3, a control step 4, and a control seat 5 are provided at a front right portion of the self-propelled vehicle body 1. Various control levers are provided on the left side of the control seat 5.
An operation lever mounting frame 6 provided with a class is provided. The prime mover is mounted on a lower portion of the control seat 5. 7
Is a threshing device constituting the gist of the present invention, which is mounted on the left side from the left and right central portions of the self-propelled vehicle body 1, and is provided so that the handling cylinder axis is directed in the front-rear direction. That is, the handle 8a is mounted on the left side, and the threshing chain 8 is mounted on the outside thereof in a front-rear direction. The supply port of the threshing grain stem is on the front side, and the dust and threshed waste straw are discharged backward. It is supposed to be.
On the right side of the threshing device 7, a grain tank 9 for accommodating the threshing and sorted rice is mounted. [0010] A cutter device 10 is mounted on the rear side of the threshing device 7. Numeral 11 denotes a reaper conveying device,
In a, cereal stem plant 12, raising body 13, clipper 14 for cutting
And a transport chain 15 for transporting the harvested culm while changing its posture to a sideways state. The rear base end of the machine frame 11a is attached to the vehicle body 1 so as to be rotatable around a lateral axis. A hydraulic cylinder device 16 is interposed between the machine frame 11a and the vehicle body 1 so that the reaping and conveying device 11 can rotate up and down. Then, the cereal stalks cut by the slimming and conveying device 11 are conveyed rearward and upward, and the stalks are inherited by the threshing chain 8, and the ears are supplied from the supply port of the threshing device 7 into the handling room. ing. Next, the threshing apparatus 7 will be described in detail. First, in the front sectional view shown in FIG. 3, a handling chamber 17 and a processing chamber 18 are arranged adjacent to each other above a threshing machine frame 7a having a box shape in a front view. On the side portions, a threshing net 19 and a processing net 20 are respectively extended in an arc shape. The handling chamber 17 and the processing chamber 18 are communicated (K) at an adjacent portion thereof, and a partition 21 is provided at various places in the front-rear direction of the communication portion. It is divided as shown. Further, the processing chamber 18 has a starting end that starts from a position behind the handling chamber 17, and the rear end extends further rearward than a rear end position of the handling chamber 17. Reference numeral 22 denotes a handling cylinder, which has teeth 23 implanted on the outer periphery thereof and is rotatably supported by a handling cylinder shaft 24 in the handling chamber 17. A processing cylinder 25 has a spiral body, processing teeth, and a processing rod attached to an outer peripheral portion thereof, and is rotatably supported by a processing cylinder shaft 26 in the processing chamber 18. The processing cylinder 25 itself is connected to the fifth
This will be described with reference to the drawings. To explain the operation, straw shavings are placed on the starting end side of the outer peripheral surface of the trunk in response to rotation of the trunk in the arrow (b) direction.
And a spiral transfer body 27 for transferring the straw chips to an arrow (c) on the rear side.
In the portion following the spiral transfer body 27, processing teeth 28 for taking in the straw chips from the handling chamber 17 and transferring the straw chips to the rear side are provided, and the scraps are scratched from the handling chamber 17. A processing rod 29 for taking in is provided via a mounting plate 30. Following this, there is provided a spiral discharge body 31 that receives the transferred straw waste and then jumps out the straw waste toward the arrow (d) that is outward in the opposite direction. A vertical ring flange 32 having no twist is configured to prevent the movement of the straw waste backwards.
Subsequently, a helical transfer body 33 for taking in straw chips similar to the one formed on the start end side and transferring the same to the rear is provided, and thereafter, the processing teeth 28 are attached. When the processing cylinder 25 constructed as described above is mounted on the processing chamber 18 shown in FIG. 4, the portion of the ring flange 32 coincides with the portion of the processing chamber partition wall 34. The partition wall 34 is provided with a hole 35 into which the above-mentioned ring flange 32 can be fitted. A fixed processing plate 36 and a cutting blade 37 that intersect with the processing teeth 28 are fixed to the inner peripheral portion of the processing chamber 18. FIG. 6 is a perspective view showing a part of the frame structure of the threshing apparatus in which the threshing net 19 and the processing net 20 are omitted. A culm supply port 38 is provided to supply culm to the culm, and a culm port 3 is provided on the rear side wall.
9 is pierced. Reference numeral 40 denotes a reinforcing frame for connecting the front wall and the rear wall of the handling room 17, and is provided vertically above the left and right sides of the handling room 17. The casing 41 shown in FIGS. 6 and 7 includes a joint 44 for connecting a drive shaft 42 for transmitting the processing drum 25 and a processing drum shaft 43, and is provided on a front outer wall surface of the machine frame 7a. The drive shaft 42 protrudes into the casing 41 of the machine frame from the transmission case 45 provided inside the bevel gear. 4
Reference numeral 6 denotes an input pulley. As shown in FIG. 8, the transmission of the handle shaft 24 is performed by mounting a handle cylinder transmission case 47 with a bevel gear inside on the front outer wall of the machine frame, and an input pulley 4 provided on the right end side thereof.
8 to be driven. Reference numeral 49 denotes a cutting blade that intersects with the tooth 23 of the handling cylinder 22 provided in the handling room. FIG. 10 and FIG. 11 are perspective views showing the rear portions of the handling room 17 and the processing room 18, and the rear outer wall of the straw outlet 39 on the rear wall of the handling room projects rearward. Projection 5
A plurality of 0s are provided in the arc plane. In addition, the handling room 17
Below the processing cylinder 25 projecting further rearward, guides 50a for receiving straw waste and guiding the same toward the lower side of the handling cylinder side are provided at predetermined intervals in the front-rear direction. Next, the sorting device provided in the lower part of the handling chamber 17 and the processing chamber 18 disclosed in FIGS. 3 and 12 will be described in detail. Reference numeral 51 denotes a swinging sorting shelf. On the front side, the right side is inclined higher than the left side, and the portion excluding the front side is provided in the sorting chamber 52 in a substantially horizontal state in the left-right direction. Roller 53
The sorting shelf 51 is swingably moved in the front-rear direction with the front end side interlocking with the eccentric rotating body 55 via a rail 54 via the rail. The composition of this sorting shelf itself is
In the front part, a first transfer rack 56 having a saw blade shape in side view is provided on the plate surface receiving the grain, and in the front and rear middle part, the plate surface is horizontally bent after being inclined downward and forward, and upward. A blind-like second transfer rack 57 through which grains and small straw chips can leak is provided, and a sorting net 5 is provided at the rear end of the plate surface.
8 is stretched rearward, and from the rear end side of the upper second transfer rack 57, a third transfer rack 59 is provided in which a large number of plates formed in a sawtooth shape on the upper side are arranged at predetermined intervals on the left and right sides. It has become. Below the rocking sorting shelf 51, there is a pressurized wind drum 61, a first grain transfer spiral 62, and a second grain transport spiral 63, which are suspended from the front side in a Karino case 60. It is described that the spiral gutters 64 and 65 to be installed and fitted are arranged at predetermined intervals. Reference numeral 66 denotes a return spiral cylinder for returning the second grain to the upper surface on the starting end side of the swinging sorting shelf 51, and a discharge port 67 is provided on the inclined upper surface side of the sorting shelf 51 inclined to the left and right, and the reduced straw is provided. The second grain containing waste is slid down to the left side of the slope and is quickly dispersed on the upper surface of the shelf after being subjected to the swinging operation. Reference numeral 68 denotes a cross-flow suction machine, also called a sirocco fan, which sucks air from the entire left and right width and discharges the air to the outside. Next, the operation of the above example will be described. In the combine shown in FIG. 1, the harvesting and conveying device 11 is lowered by the hydraulic cylinder device 16, and the threshing operation is performed while cutting the rice in the field while self-propelled. That is, while the planted rice is being weeded by the weeding body 12, the fallen rice is raised by the raising body 13, the root portion of the rice is cut off by the clippers 14, and the cut culm is then transferred to the transport chain. At 14, the tip side is changed to a sideways state in which the tip side is directed to the right side while being transported rearward and upward, and then the root side is transferred to the threshing chain 8 of the threshing device 7 and transported rearward. The grain stem thus cut and transferred is supplied from the supply port 38 to the handling chamber 17 of the threshing machine through the supply port 38, and is transferred to the rear of the handling chamber as it is by the threshing chain 8. Then, in response to the rotation of the handling cylinder 22 and the rotation of the processing cylinder 25, threshing and processing of straw waste are performed in the handling chamber 17 and the processing chamber 18. That is, the cereal stalk is placed under the handling cylinder
3 and the threshing net 19 thresh the ear grains and leak below the threshing net 19. In addition, the straw and spikes cut by the action of the tooth handling 23 become straw waste and rotate in the handling room with the rotation of the handling cylinder 25. At this time, the processing cylinder 25 is rotating toward the upper side opposite to the handling cylinder 22, and the processing cylinder 25
Spiral body 27, processing teeth 28 and processing rod 29 fixed to the peripheral surface of
And the like, is taken into the processing chamber 18 from the communication (K) portion between the handling chamber 17 and the processing chamber 18 by the rotation action, and the processing net 20, the cutting blade 37
By such an interaction, the straw waste is broken and processed while being finely cut, and the grains stuck in the straw waste are released from the straw waste and leak from the lower processing net 20 on the lower side. Furthermore,
Most of the straw waste rotating in the processing chamber 18 by the rotation of the processing cylinder 25 remains in the processing chamber and is processed while being transported backward in the processing chamber. ) Portion is scraped into the handling chamber 17 by the toothing 23 and the handling chamber 1
Threshing is further performed in 7. FIG. 13 is a front sectional view of this operation.
14 and 15, the straw waste A is disclosed by a moving arrow diagram, and in FIG. 13, the straw waste is turned and turned in a figure-eight shape, and in this state, FIG. 14 or FIG. The straw chips are mainly transferred into the processing chamber as shown in FIG. 14, and are returned from the processing chamber 18 to the handling chamber 17 as shown in FIG. Direction (e)
There are few things. It depends on the diameter of the handling cylinder 22 and the processing cylinder 25
This is because the tangential direction of the outer circumference of rotation is different due to the difference in the diameters. That is, in FIG. 4, when the straw waste in the handling room is introduced into the processing chamber, it is introduced through the first and second openings (A) of the communication (K) portion, and most of the waste is processed. It is transported backward while being processed in the chamber 18. That is, from the two openings (a), straw waste is freely introduced into the processing chamber 18 and, when the third opening (a) is reached, the discharge body 31 acts in the frontward direction in the handling chamber 17. It will be reduced towards. That is, the straw waste A introduced into the processing chamber 18 on the front side thereof is discharged from the discharge body 31 provided on the processing cylinder 25 at a portion near the rear of the handling chamber 17 as shown in FIG. As a result, the straw A is discharged into the handling room in the direction of the arrow (d), which is the opposite side of the front handling room, from the state of being transferred to the rear side. Then, the straw waste sent again into the handling room 17 is threshed while being transported to the original rear side, and is dropped and discharged from the outlet 39 at the lower rear end of the handling room onto the swinging sorting shelf 51 below. On the other hand, the straw waste that is swirled and transferred to the processing chamber 18 is processed while being transported backward in the processing chamber 18 by the spiral transfer body 33, and is processed downward from the processing chamber discharge port opened on the swing sorting shelf 51. Will be released. Therefore, the straw waste A generated during threshing is
Basically, most of the material is thrown into the processing chamber 18 from the handling chamber 17 at the front part except for the rear part of the handling chamber, and a large amount of straw waste A is quickly processed. It is returned from the inside to the handling room 17 and is threshed. For this reason, processing such as dispersion, cutting, and threshing is performed with high efficiency.
7 reaches the end side, the discharge body 31 provided on the processing cylinder 25
Is discharged in the direction of the arrow (d) on the side of the front handling room, and moves as if in a substantially γ-shape.
Is transported rearward through the corresponding portion of Therefore, in this portion, the straw waste processing is also performed accurately, and the straw waste after the processing is dispersed from below the outlet 39 at the rear end of the handling chamber and the lower part of the processing cylinder extension, and is placed on the swinging sorting shelf 51 below. It is discharged and sorted. The grain and the treated culm and straw waste dropped and released as described above on the swinging sorting shelf 51 are transported rearward by the swinging operation of the grain, and are transferred to the grain by a small size. The straw waste leaks from the gap of the second transfer rack 57 and
8 the straw is separated into grains and grains, and the grains are separated into the lowermost spiral gutter 6
4 and transferred to the right side of the fuselage by the spiral 62,
It is spirally lifted in the fryer and discharged into the grain tank 9. The small straw waste is blown backward by the sorting wind by Karino 61 without leaking from the sorting net 58, and the light waste is discharged out of the machine as it is. The swarf with a branch attached to the kernel falls into the second spiral gutter 65 in response to the shaking operation, and the spiral 63
Is transferred to the right side of the aircraft. The straw waste which does not leak from the gap of the second transfer rack 57 is transferred to the rear side while being dispersed as it is,
While being blown up by the sorting wind of No. 1, it is sorted out from small straw waste, and the small ones fall down and undergo the above-described sorting.
The large one reaches the third transfer rack 59, where the small one falls and is supplied into the second spiral gutter 65. And the straw waste that has undergone a large selection is the third
It is discharged from the rear end of the transfer rack 59 to the outside of the machine. The second grain, the grain with branch spikes, and the straw chips received by the second spiral gutter 65 are transported to the right end of the machine body by the spiral 63 and transported upward and forward by the spiral of the fryer cylinder 66 to swing. Sorting shelf 5
It is reduced to the starting end of 1 and sorted again. Dust and fine straw chips generated inside the machine are discharged outside the machine by the sorting wind of Karino 61 and the cross flow suction device 68 arranged at the upper rear. Also, in the case of long straw, this cross-flow suction device 6
8 is discharged to the outside of the machine by the scraping action. The grains stored in the grain tank 9 are discharged to and loaded on a truck bed on the road at the end of a field by a discharge spiral.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the whole combine equipped with the threshing apparatus. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a front sectional view of a main part. FIG. Plan view [Fig. 5] Plan view of processing cylinder itself [Fig. 6] Slope view of main part [Fig. 7] Slope view of main part [Fig. 8] Slope view of main part [Fig. 9] Slope view of main part [Fig. 10: Slope view of main part [FIG. 11] Slope view of main part [FIG. 12] Side sectional view of main part [FIG. 13] Rear cross-sectional view of main part [FIG. 14] Simplified plan view for explaining operation [FIG. Simplified plan view for explaining the operation [FIG. 16] Planar sectional view of the main part [Description of symbols] 8 Threshing chain 8a Handle 17 Handling room 18 Processing room 21 Partition body 22 Handling drum 25 Processing drum 31 Discharger 33 Transfer member 51 swing sorting shelf 52 sorting room K communication section

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naoji Tanaka 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-55-54818 (JP, A) JP-A-57-2612 (JP, A) JP-A-61-202624 (JP, A) JP-A-3-91731 (JP, A) U) Jikaichi Hei 1-63350 (JP, U) Jiko 29-3334 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01F 12/00-12/60

Claims (1)

(57) [Claims 1] A handle cylinder 22 rotating downward is provided inside a bearing with a handle 8a opening along the threshing chain 8 for holding and transporting a grain stalk outside. A handling chamber 17, and a processing drum 25 that rotates on the opposite side of the handling cylinder 22 provided along the handling chamber 17 at an upper position on the opposite side of the handling chamber 17 from the handling port side.
Is provided above a swinging sorting shelf 51 installed in a sorting chamber 52, and in the front-rear relationship between the handling chamber 17 and the processing chamber 18, the starting end of the processing chamber 18 is handled. Room 1
7 is formed from a position substantially the same as or later than the start end position, and the end side extends rearward from the handling chamber 17 to partition the handling chamber 17 and the processing chamber 18 at a predetermined interval. The opening communication (K) is performed over the entire area in the front-rear direction, except for the above, and the straw waste transferred from the rear wall of the handling chamber 17 to the front end in the front-rear direction of the handling chamber 17 from the rear wall of the handling chamber 17 in the processing chamber 18 in the front part. Is provided on the outer periphery of the processing drum, and a piece of straw scraped up by the rotation of the processing drum 22 in the processing drum is provided in the processing chamber at the rear side. A thruster characterized in that a spiral transfer body 33 for taking in and transferring the straw chips to the rear side of the handling chamber 17 is provided, and the rear end side of the processing chamber and the lower sorting chamber 52 are communicated with each other. apparatus.