JPH0613433U - Threshing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] In an axial-flow type threshing device having a processing cylinder (7) parallel to the handling cylinder axis (6a), the particles are discharged from a dust outlet (21) at the end of the processing cylinder (7). Preventing the dust-blocking air passage from being blocked by straw waste, promoting the air-selection action and making the threshing device compact. [Structure] A cross-flow type suction / exhaust fan (33) is horizontally installed at the end of the sorting air passage, and a dust outlet (21) at the end of the processing cylinder (7) is provided in the sorting air passage in front of the fan (33). The lower swing sorting board (22) and the fan (3).
3) A sorting shelf (27) for separating dust from the processing cylinder is provided to divide the sorting air passage into upper and lower parts.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a threshing device in a combine for threshing and selecting a grain culm cut by a slicing section in a threshing section.

[0002]

[Prior art]

 Conventionally, there is an axial flow type threshing device having a processing cylinder parallel to the handling cylinder axis.

[0003]

[Problems to be solved by the device]

 In the above threshing device, compared to the single-body axial-flow threshing device, the straw waste discharged from the outlet of the handling chamber is discharged through the treatment chamber onto the rocking sorting board at the end of the sorting air passage. As for the rocking sorter on the top of the gutter, it is only necessary to wind-select only those leaked by the crimp nets in the handling room, which facilitates the wind-selection and simplifies the threshing device. However, since the dust is vigorously discharged onto the Straw rack at the end of the rocking sorter even though it is the end of the sorter, it blocks the sort air passage that has passed through the Karako and the suction / exhaust fan, and the dust on the rocking sorter is blocked. There is the inconvenience that it is not possible to give a sufficient wind separation effect to the objects to be sorted, which hinders the simplification of the threshing device. There was also the inconvenience that the straw chips could easily fall into the second gutter.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention is an axial-flow threshing device having a processing cylinder parallel to the handling cylinder axis, in which a cross-flow type suction / exhaust fan is installed horizontally at the end of the sorting air duct and the dust outlet at the end of the processing cylinder is provided. Is installed in the sorting air passage in front of the fan, and a sorting shelf for dust removal from the processing cylinder is provided between the lower swing sorting board and the fan to divide the sorting air passage into upper and lower parts. Since the dust discharged from the dust port is received by the sorting rack and is subjected to the sieving action in the upper part of the sorting air passage, it is possible to sufficiently perform head sorting, and to remove light straw dust from the machine through the suction / exhaust dust fan. Grain can be collected in the second gutter at the bottom, reducing the third loss and the mixing of straw waste into the second gutter. In addition, since the dust is not blocked by the sorting shelves, the objects to be sorted on the rocking sorting board can be sufficiently subjected to the wind sorting action in the sorting air passage in which the Karako and the suction / exhaust dust fans communicate. The threshing device can be designed compactly, and it provides a highly efficient threshing device that is smaller than the conventional one, has good sorting, and has extremely small third loss.

Further, by transmitting power from the rear end of the processing cylinder shaft to the fan, the driving of the fan rotating in the opposite direction to the other sorting shafts can be simplified, and the fan can be driven on the side opposite to the attaching / detaching direction. Therefore, it is possible to easily perform the attaching / detaching work without removing the drive case or the like when the fan is attached / detached.

Further, by providing a grain leakage hole and a threshing plate tooth in the dust passage passage portion that connects the handling chamber and the treatment chamber, the dust passage passage portion also has a leakage and threshing action. Therefore, the processing capacity can be improved as compared with the conventional one.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a cross-sectional side view of the threshing section, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view thereof. In the figure, (1) is a track frame on which a traveling crawler (2) is installed, (3) Is a machine stand installed on the truck frame (1), (4) is a threshing section in which a feed chain (5) is stretched on the left side, and a handling cylinder (6) and a processing cylinder (7) are built in, (8) ) Is a mowing section equipped with a cutting blade and a grain transfer mechanism, (9) is a straw chain having a starting end facing the end of the feed chain (5), and (10) is a driver's seat (11) and a driving control section. A driver's cab provided with (12), (13) is an engine part which is arranged in the right front part of the machine stand (3) and internally has an engine, and (14) is arranged behind the engine part (13). It is a grain tank that stores grains from the threshing section (4), and is configured to continuously perform cutting and threshing work. That.

Further, as shown in FIGS. 4 and 5, (15) in the drawings is a handling chamber in which an axial flow type handling barrel (6) axially mounted in the longitudinal direction of the machine body is installed, and (16) is the above-mentioned handling chamber. A handling mouth for inserting grain culms into the handling room (15), (17) a crimp net stretched under the handling room (15), and (18) behind the fuselage from the lower right end of the handling room (15). A processing chamber formed inside the processing cylinder (6a) in which the processing cylinder (7) is installed, and (19) is the lower right end of the processing chamber (15) and the starting end of the processing chamber (18). A dust passage communicating the left side portion, (20) a crimp net stretched over the left side surface of the processing chamber (18), (21) a dust outlet formed by opening the left side surface of the end of the processing chamber (18), Reference numeral (22) is a swing selection board which is swingably supported in the front-rear direction via a swing link or the like, and is placed below the crimp net (17). A feed pan (23) to be driven, a cross rail (24) which is a taff sheave located at the rear of the crimp net (17), a gren sheave (25) arranged below the cross rail (24), and the cross rail ( 24) The rocking sorter disc (21) is composed of a Straw rack (26) extending rearward and a sorting rack (27) disposed above the Straw rack (30) for dust removal from the processing cylinder. Make up.

Further, in the figure, (28) is Kara Minour, which sends the sorting air toward the sorting board (21), and (29) is one for taking out the grains to the grain tank (14) via a lifting cylinder. The first gutter having the second conveyor (30), (31) the second gutter having the second conveyor (32) for returning the second object to the rocking sorting board (21) through the reducing conveyor (33). ) Is a cross-flow type suction / exhaust fan horizontally installed at the end of the sorting air passage, and the grains threshed by the handling cylinder (6) and the processing cylinder (7) are sorted by a rocking sorting board (22) and adjusted. Only the grain (first item) is taken out to the grain tank (14).

The dust outlet (21) is opened in the sorting air duct in front of the suction / exhaust fan (33), and the above-mentioned sorting shelf (27) is provided with a lower straw rack (26) and an upper suction / exhaust dust fan (33). ) Between the upper and lower parts of the sorting air duct so as to swing together with the swing sorting plate (22) via the support plate (34) above the end of the swing sorting plate (22). Mounting, configured to receive the dust discharged from the dust outlet (21) by the sorting shelf (27), to provide a sieving function in the upper part of the sorting air passage, and to prevent the dust from blocking the sorting air passage. ing.

A bevel gear case (35) for transmitting power from the processing cylinder (7) to the dust collecting and exhausting fan (33) is provided, and the rear end of the processing cylinder shaft (7a) is interlocked via bevel gears (36) (37). A fan case in which the right end of the rotary shaft (39) of the dust suction fan (33) is detachably spline-fitted to the output shaft (38) to be coupled and the left end of the rotary shaft (39) of the dust suction fan (33) is pivotally supported. The left side plate (40) is detachably installed, and the suction / exhaust dust fan (33) is detachably attached to the left side of the machine body.

As shown in FIGS. 5 to 7, the passage bottom plate (41) forming the dust passage (19) is partially cut and raised to form a plurality of blind holes (42) and plate teeth (43). The punching hole (42) is opened just below the handle tooth (7b) of the processing cylinder (7), and the plate tooth (43) is cut and raised between the handle teeth (7b) of the processing cylinder (7). In addition, the dust passage (19) is designed to give dust removal and leakage effects.

The present embodiment is configured as described above, and the grain culm cut by the reaper (8) moves in parallel with the handle shaft (6a) while holding the culm by the feed chain (5). Then, only the tips are supplied from the handling mouth (16) to the handling room (15), and the particles are shed by the handling teeth (6b) of the handling barrel (6) while passing through the handling room (15). The straw that has passed through the handling room (15) is inherited by the straw chain (9) and discharged to the outside of the machine. In that case, it is usually cut by a straw cutter or a straw bundling machine mounted behind the threshing unit (4) to a predetermined length or collected into a large bundle and discharged outside the machine.

Most of the threshed material threshed in the handling room (15) leaks from the crimp net (17), and the wind-screening action of the Karako (28) and the swing-sorting action of the swing-sorting plate (22). Then, it is separated into sized particles (first thing), panicles (second thing) and fine dust. The sized particles are collected by the first gutter (29) and sent to the grain tank (14) by the first conveyor (30), etc., and the cuttings are collected by the second gutter (31) and the second conveyor (30). ) Or the like, the fine dust is discharged to the outside of the machine through the dust suction fan (33).

Some of the straw debris and shattered particles generated in the handling chamber (15) do not leak through the crimp net (23) and pass through the dust passage (19) from the end of the handling chamber (15) to the treatment chamber (18). ) While flowing into the starting end and passing through the processing chamber (15), it is further threshed by the handling teeth (7b) of the processing cylinder (6).

The threshed material threshed in the processing chamber (18) leaks from the crimp net (20), and is subjected to the wind sorting action of the Karato (28) and the swing sorting action of the swing sorting disc (22), It is divided into sized particles, panicles, and fine dust. The sized grains are collected by the first gutter (29) and sent to the grain tank (14) by the first conveyor (30), etc., and the cuttings are collected by the second gutter (31) and conveyed by the second conveyor ( It is returned to the front part of the rocking sorting board (22) by 30) or the like, and the fine dust is discharged to the outside of the machine via the dust suction fan (33).

The suction / exhaust dust fan (33) is disposed above the end of the sorting air passage, and scrapes up the objects to be sorted that have reached the end of the sorting air passage and discharges them to the rear of the machine. Since the suction / exhaust fan (33) rotates in the direction opposite to the rotating direction of the sorting shaft of the number conveyor (30), the second conveyor (32), etc., it facilitates the sorting of the falling grains and the fine dust. The so-called third loss, in which the grains are mixed with the dust and discharged outside the machine, is reduced. Further, when power is transmitted to the dust suction / exhaust fan (33) through a power transmission path such as Karato (28), the first conveyor (30), and the second conveyor (32), only the rotation direction of the dust suction and exhaust fan (33) is changed. Since it is in the opposite direction, a dedicated reversing device is required, and the reversing device needs to be detached when the dust removal fan (33) is attached or detached. Since power is transmitted on the side opposite to the attachment / detachment direction of the suction / exhaust fan (33), the set of bevel gears (36) (37) can drive the suction / exhaust fan (33) to drive the suction / exhaust fan (33). The device can be simplified and the suction / exhaust fan (33) can be easily attached / detached. Further, the processing body shaft (7a) running in the front-rear direction of the machine and the rotation shaft (39) of the dust collecting fan (33) running in the left-right direction of the machine are connected to each other in an L shape through the bevel gear case (35), and Since it is connected to the left and right, the strength of the rear part of the aircraft is also improved.

Then, the dust discharged from the dust outlet (21) at the end of the processing chamber (18) is received by the sorting shelf (27) and is subjected to the sieving action at the upper portion of the sorting air passage, and in the sorting air passage. The head is sufficiently sorted to separate it into straw and grain. Light straw waste is discharged to the outside of the machine through the suction and exhaust fan (33), and the grain is collected in the lower second gutter (31), so the so-called third loss is further reduced. In addition, since the dust discharged from the dust outlet (21) at the end of the processing chamber (18) is received by the sorting shelf (27) above the sorting air passage and does not block the entire sorting air passage, it is sucked and discharged from the Karako (28). The flow of air to the dust fan (33) is not obstructed, and the objects to be sorted on the rocking sorting board (22) are sufficiently located in the sorting air passage in which the Karato (28) and the suction / exhaust dust fan (33) communicate. Since it can be subjected to the wind separation action, the handling cylinder (6) and the processing cylinder (7) are shortened, the rocking sorting board (22) is simplified, and the karako (28) and the suction / exhaust dust fan (33) are downsized. The threshing device can be designed compactly.

In downsizing of the threshing device, as shown in FIGS. 8 and 9, by reducing the diameter of the rear end of the handling cylinder (6) and the diameter of the front end of the processing cylinder (7), Since the axial distance (A) between the cylinders (6) and (7) can be made shorter than that of the above-mentioned embodiment, it can greatly contribute to the reduction of the left-right width of the threshing device.

[0020]

[Effect of device]

 As is apparent from the above-described embodiment, the present invention is an axial flow type threshing device having a processing cylinder (7) parallel to the handling cylinder axis (6a), and a cross flow type suction / exhaust dust fan (33) is provided at the end of the sorting air passage. ) Is installed horizontally, and the dust outlet (21) at the end of the processing cylinder (7) is opened in the sorting air passage in front of the fan (33), and the lower swing sorting plate (22) and the fan Since a sorting shelf (27) for separating dust from the processing cylinder is installed between the upper and lower parts (33), the dust discharged from the dust outlet (21) is sorted by the sorting shelf (27). Since it is received by and is subjected to a sieving action in the upper part of the sorting air passage, it is possible to perform sufficient drop sorting, and light straw dust goes out of the machine through the suction / exhaust dust fan (33), and the grain is the lower second gutter ( 31) It is possible to collect it into the inside and reduce the mixture of straw waste into the third loss and the second gutter. In addition, since the dust is not blocked by the sorting shelf (21), the object to be sorted on the swing sorting board (22) is in the sorting air passage in which the Karako (28) and the dust suction fan (33) communicate. The effect of being able to provide a highly efficient threshing device that is capable of being sufficiently subjected to wind separation action, can be designed compactly, and has a smaller size than the conventional one, is good for sorting, and has extremely few third loss. It plays.

Further, by transmitting power from the rear end of the processing cylinder shaft (7a) to the fan (33), it is possible to simplify driving of the fan (33) that rotates in a direction opposite to the other selection shafts. Since the fan (33) is driven on the side opposite to the attaching / detaching direction, it is possible to easily perform the attaching / detaching work without removing the drive case or the like when the fan (33) is attached / detached.

Further, a grain leakage hole (42) and a threshing plate tooth (43) are provided in a dust passage (19) that connects the handling chamber (15) and the treatment chamber (18). As a result, leakage and threshing action can be obtained even in the dust sending passageway (19), and the processing capacity can be improved as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a sectional side view of a threshing unit.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is an explanatory plan view of a threshing unit.

FIG. 5 is a cross-sectional rear view of the threshing unit.

FIG. 6 is a perspective view of a passage bottom plate of the dust passage.

FIG. 7 is a sectional view of a passage bottom plate.

FIG. 8 is a plan view showing a modified structure of a handling cylinder and a processing cylinder.

FIG. 9 is a rear view showing a modified structure of a handling cylinder and a processing cylinder.

[Explanation of symbols]

 (4) Threshing part (6) Handling barrel (6a) Handling barrel shaft (7) Handling barrel (15) Handling chamber (18) Processing chamber (19) Dust passage (21) Dust outlet (22) Swing sorter (26) Strawac (27) Sorting rack for dust removal from the processing cylinder (28) Karan (33) Cross flow type dust suction fan

Claims (3)

[Scope of utility model registration request] 1. An axial-flow type threshing device having a processing cylinder parallel to a handling cylinder axis, wherein a transverse-flow type suction / exhaust fan is installed laterally at the end of the sorting air passage, and a dust outlet at the end of the processing cylinder is provided. A threshing for discharging dust from the processing cylinder, which is opened in the sorting air passage in front of the fan, and which divides the sorting air passage into two parts up and down between the lower swing sorting board and the fan. apparatus. 2. An axial flow type threshing device having a processing cylinder parallel to the handling cylinder axis, wherein a transverse flow type suction / exhaust dust fan is horizontally installed at the end of the sorting air passage, and power is applied to the fan from the rear end of the processing cylinder axis. A threshing device characterized by transmission. 3. An axial flow type threshing device having a processing cylinder parallel to the handling cylinder axis, wherein a grain passage hole and threshing plate teeth are provided in a dust-passing passage portion that connects the handling chamber and the processing chamber. And a threshing device characterized by being provided.