JP2020018180A - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine capable of easily performing maintenance work in a handling room without inviting a complicated structure. SOLUTION: A threshing device 4 for threshing a cut grain culm in a handling chamber 23 is provided, and the handling chamber 23 has a handling cylinder 34 rotating around a front-rear axis X and a state along an outer peripheral portion of the handling cylinder 34. The arc-shaped receiving nets 54 and 55 provided in the above are provided, and the top plate 30 covering the upper part of the handling chamber 23 is detachably supported along the lateral direction. [Selection diagram] FIG. 7

Description

  TECHNICAL FIELD The present invention relates to a combine provided with a threshing device for threshing a cut culm.

  In a conventional combine, for example, as shown in Patent Literature 1, in order to inspect and clean the threshing device, a top plate covering the upper part of the handling room is turned upward around the front-rear axis at one lateral side. Some were provided to be able to swing open. In the combine described in Patent Literature 1, a grain tank for storing grains obtained by threshing is provided in a state positioned above the threshing apparatus.

JP 2013-183717 A

  In the configuration in which the top plate is swung upward to open the handling room outward as in the above-described conventional configuration, when performing maintenance work such as inspection and cleaning of the threshing device, the top plate is greatly swung upward. To move it, a large space is required on the upper side. In particular, if the configuration is such that the grain tank is arranged above the threshing device, a mechanism for greatly opening the grain tank is required, and there is a disadvantage that the structure becomes complicated. Further, in order to swing the top board, the worker must climb to a high place, and there is a disadvantage that the work is difficult to perform.

  Therefore, it has been desired that the maintenance operation of the inside of the handling room can be easily performed without causing the structure to be complicated.

  A characteristic configuration of the combine according to the present invention is provided with a threshing device for threshing the harvested culm in the handling room, and the handling room includes a handling drum that rotates around a longitudinal axis and an outer peripheral portion of the handling drum. An arc-shaped receiving net provided in a state is provided, and a top plate that covers the upper part of the handling room is detachably supported in a lateral direction.

  ADVANTAGE OF THE INVENTION According to this invention, when performing maintenance work, such as an inspection and cleaning of a handling room interior, it can respond by attaching and detaching the top plate which covers the upper part of a handling room along a horizontal direction. With this configuration, the operator can work from a lower position on the lateral side of the machine body without climbing to a higher position, as in the case of swinging the top plate upward. Also, for example, even if the grain tank is arranged above the threshing device, it is not necessary to provide a special evacuation structure in the grain tank to open the top plate, and the support structure is simple. Can be.

  Therefore, it becomes possible to easily perform the maintenance work of the inside of the handling room without causing the structure to be complicated.

  In the present invention, the top plate is constituted by a plurality of divided top plates divided along the rotation axis of the handling cylinder, and the plurality of divided top plates are separately detachable along the horizontal direction. There is provided a support frame extending from one lateral side portion to the other side portion of the threshing device at a division boundary between the plurality of divided top plates, and the plurality of divided top plates are provided on the support frame. Preferably it is supported.

  According to this configuration, since the divided top plate is smaller and lighter than the entire top plate, it is possible to reduce the labor burden of attaching and detaching work. Since the support frame that supports the plurality of divided top plates extends from one side in the horizontal direction to the other side portion at the division boundary portion, it becomes a hindrance when attaching and detaching the divided top plate along the horizontal direction. In addition, the work of attaching and detaching the divided top plate and the support frame can be easily performed.

  In the present invention, each of the plurality of divided top plates is constituted by a plurality of top plate structures divided along the circumferential direction of the handling cylinder, and the top plate structure located on one side in the lateral direction is The top plate structure is detachably supported on one side in the lateral direction by the support frame, and the top plate structure located on the other side in the lateral direction is supported by a rail portion provided on the support frame so that it can be inserted and removed along the lateral direction. It is preferable that it is done.

  According to this configuration, since the divided top plate is further divided along the circumferential direction, it is possible to further reduce the weight and reduce the labor burden of the attaching / detaching operation. The top plate structure located on one side in the lateral direction is located at a position close to the worker on the outside on one side in the lateral direction of the fuselage, and can be attached or detached as it is. The other side in the lateral direction, in other words, the top plate structure located on the inner back side is supported by the rail portion and can be inserted and removed along the lateral direction, so the worker on the one side outside the lateral direction of the aircraft, It is possible to reach and pull out. After being inserted and mounted, it can be stably supported by the support frame via the rail portion.

  In the present invention, a grain tank for storing grains after being subjected to threshing by the threshing apparatus, and an engine as a power source are provided above the threshing apparatus, and both lateral sides of the threshing apparatus are provided. In the portion, it is preferable that an upper frame extending along the rotation axis direction be provided over upper portions of the plurality of support frames, and the kernel tank and the engine be supported by the left and right upper frames. It is.

  According to this configuration, the grain tank and the engine are provided above the threshing device. For example, even if the threshing equipment is enlarged in order to improve the threshing capacity, the size of the entire machine in the width direction is suppressed from increasing as compared with the case where the grain tank and the engine are located on the side of the threshing equipment it can. The left and right upper frames are stably supported by using a plurality of support frames provided for dividing the top plate, and the left and right upper frames allow the grain tank to be located at a high position above the threshing device. And the engine can be favorably supported.

  In the present invention, the receiving net is constituted by a plurality of divided receiving nets divided along a rotation axis direction of the handling cylinder, and a side wall of the threshing device is divided along the rotation axis direction. It is preferable that the divided receiving net and the divided wall are each detachably supported along the lateral direction.

  According to this configuration, since the receiving wall and the side wall are divided, not only the top plate but also the receiving net and the side wall can be reduced in size and weight, and the labor burden of the attaching / detaching operation can be reduced.

  In the present invention, the top plate is configured by a plurality of divided top plates that are divided along the rotation axis center direction, and the divided receiving net and the divided wall are arranged at the same position as the top plate. It is preferable that it is divided along the core direction and is detachable in the same direction as the top plate.

  According to this configuration, since the divided top plate, the divided receiving net, and the divided wall are divided at the same position, the attaching and detaching operations thereof can be performed efficiently without trouble. As a result, the maintenance work inside the handling room can be performed more easily.

  In the present invention, in the handling chamber, an interval is provided along the rotation axis of the handling cylinder on the inner surface side of the top plate, and threshing is performed from one side of the rotation axis of the handling cylinder to the other side. A plurality of dust-feeding valves for transporting the fixed dust-feeding valve to each of the plurality of dust-feeding valves. It is preferable that a movable dust-feeding valve portion which is adjacent to the direction and which can change and adjust the feed angle by swinging is provided.

  According to this configuration, since the fixed dust sending valve portion of the dust sending valve is fixedly mounted on the top plate, the shape of the top plate is not restricted. Therefore, at the location where the fixed dust valve portion can be attached, it is possible to make the shape of the top plate such that the thresh-processed material can be smoothly carried and transported with the rotation of the handling cylinder. By changing the feed angle of the movable dust valve portion that is circumferentially adjacent to the fixed dust valve portion of the dust valve, it is possible to change the transfer processing capability along the rotation axis of the handling cylinder. It is.

  As a result, while the fixed threshing valve portion allows the threshing process to be smoothly transferred with the rotation of the handling cylinder, the movable dust valve portion allows for the change in the amount of crops to be carried into the threshing device. In addition, by adjusting the feed angle of the dust valve, it is easy to eliminate the disadvantage that the grain shedding performance is reduced irrespective of the fluctuation of the crop amount.

It is a whole side view of a combine. It is the whole combine top view. It is a side view which shows the support structure of the threshing apparatus. It is a front view of a threshing apparatus. It is a front view of the threshing entrance plate installation part. It is sectional drawing which shows the connection state of the threshing inlet plate. It is a vertical front view of a threshing apparatus. It is a vertical front view of the principal part of the threshing apparatus. It is a vertical side view which shows a top plate support structure. It is a top view which shows the attachment state of a dust valve. It is the bottom view which looked at the top plate from the lower side. It is a side view of the threshing device in the state where the division top board and a part of division wall were removed.

  Hereinafter, a case where an embodiment of a combine according to the present invention is applied to a normal combine will be described with reference to the drawings.

〔overall structure〕
As shown in FIGS. 1 and 2, the combine harvester transports a crop and transports the crop backward, a driving unit 3 covered with a cabin 2, and a threshing process of the crop harvested by the harvest transporter 1. Threshing device 4 to perform, a grain tank 5 for storing grains obtained by threshing by the threshing device 4, a driving unit 7 having an engine 6 as a power source, left and right that are non-steerable and rotationally driven The vehicle includes a pair of front wheels 8, a pair of left and right rear wheels 9 that can be steered, and the like. On the left side of the grain tank 5, there is provided a screw conveyor type grain discharging device H for transporting the stored grains to the outside of the machine body.

  In this embodiment, when defining the longitudinal direction of the aircraft, it is defined along the traveling direction of the aircraft in the working state, and when defining the lateral direction of the aircraft, defining the left and right as viewed from the aircraft traveling direction. . That is, the direction indicated by the reference numeral (F) in FIGS. 1 and 2 is the front side of the aircraft, and the direction indicated by the reference numeral (B) in FIGS. The direction indicated by reference numeral (L) in FIG. 2 is the left side of the aircraft, and the direction indicated by reference numeral (R) in FIG. 2 is the right side of the aircraft.

  The reaping transport unit 1 is supported at a front part of the machine body by a reaping lifting cylinder 10 as a lifting and lowering actuator so as to be capable of driving up and down around a lateral fulcrum P1. The reaper transport section 1 reapers the crops to be planted, and gathers the reached crops toward the central part in the width direction of the reaping, and the reaping header 11 directs the crops that have been harvested and concentrated to the center toward the threshing device 4 at the rear of the machine. And a feeder 12 for transport.

  The cutting header 11 includes a rotating reel 13 for scraping the tip side of the crop to be cut rearward, a clipper-shaped cutting blade 14 for cutting and cutting the root of the crop, and a center for cutting the crop in the cutting width direction. A horizontal feed auger 15 and the like to gather together are provided.

  Although not shown, the feeder 12 has a pair of left and right endless rotating chains wound and stretched over a front and rear wheel body in a cylindrical transfer case 16, and a plurality of locked transfer members is extended over each endless rotating chain. An installed transport conveyor is provided, and is configured to transport the crop delivered from the cutting header 11 rearward and upward.

  The threshing device 4 is located at a low position at the center of the fuselage in the left-right direction. Above the threshing device 4, the grain tank 5 is located at the front of the fuselage, and the engine 6 as a power source is located at the rear of the fuselage. The grain tank 5 and the engine 6 are provided in a direction aligned in the front-rear direction. The outer sides of both the left and right sides of the threshing device 4 are covered with an exterior cover 17. Although not described in detail, the outer cover 17 has an upper side portion supported by a pivoting portion 18 extending in the front-rear direction so as to be swingably openable and closable by an engagement lock mechanism 19 which can be released by manual operation. It is configured.

  As shown in FIGS. 1 and 3, a pair of left and right main frames 20 extending in the longitudinal direction of the fuselage is provided at the lower part of the fuselage. The left and right main frames 20 support the entire body, and the main frame 20 corresponds to the body frame.

  The left and right main frames 20 are formed of channel materials having a substantially C-shaped cross section, and are provided long in the front-rear direction from the front part of the body to the rear part of the body. Axles 8a, 9a of left and right front wheels 8 and left and right rear wheels 9 are provided at positions lower than the left and right main frames 20. The left and right front wheels 8 and the left and right rear wheels 9 are provided so as to be located on the outer sides of the right and left main frames 20 in the lateral direction of the fuselage. 9 supported.

[Threshing equipment]
Next, the threshing apparatus 4 will be described.
As shown in FIGS. 3, 4, and 7, the threshing apparatus 4 includes a threshing unit 21 that performs a threshing process, and a sorting unit 22 that performs a sorting process on a processed product after the threshing process is performed by the threshing unit 21. Have been. As shown in FIG. 7, inside the threshing unit 21, a handling chamber 23 in which the processing of handling the harvested grain culm is performed. Although not described in detail, the sorting unit 22 oscillates and transports the processed material after the grain shredding process to the internal space surrounded by the rectangular peripheral wall portion, such as grains, grains with branches, and the like. A sorting processing unit 24 (see FIG. 7) for sorting into second-piece, waste straw waste, and the like is provided. As shown in FIG. 1, a shredding device 25 that shreds a thresh-processed product (thaw waste, etc.) after threshing by the threshing device 4 is provided on the rear side of the fuselage of the threshing device 4. ing.

  As shown in FIGS. 3, 4, and 7, the threshing unit 21 is mounted and supported on the left and right main frames 20. The threshing unit 21 includes left and right plate-like left and right side wall portions 26 and 27 as left and right vertical support portions extending along the vertical direction, and a substantially plate-like rear portion connecting the rear end portions of the left and right side wall portions 26 and 27. The periphery is formed by a wall portion 28, a substantially plate-shaped front wall portion 29 connecting the front end portions of the left and right side wall portions 26 and 27 to each other, and a top plate 30 extending over the left and right side wall portions 26 and 27 and covering the upper portion. It has an enclosed configuration. The front wall portion 29 and the rear wall portion 28 are formed with openings through which threshing products pass.

  The threshing unit 21 is configured such that the front side of the fuselage is narrower in the vertical direction, and the rearward side of the fuselage is wider in the vertical direction. The lower end is placed on the main frame 20 extending substantially horizontally along the front-rear direction. Therefore, the upper end portion of the threshing unit 21 has a rear-up inclined posture that is higher at a rear side.

  As shown in FIG. 7, the right side wall portion 26 located on the right side of the left and right side wall portions 26 and 27 has a shape that is continuously connected in a vertical direction. As shown in FIG. 3, the left side wall portion 27 located on the left side is formed in a substantially triangular shape in a side view so that the front side of the body is narrower in the vertical direction and the rear side is wider in the vertical direction. A lower side wall 31 and an upper side wall 32 having substantially the same width in the front-rear direction are provided.

  The right side wall 26 is bolted to the main frame 20 with its lower end placed on the upper surface of the main frame 20. The lower side wall portion 31 of the left side wall portion 27 is bolted to the main frame 20 with the lower end placed on the upper surface of the main frame 20. The upper side wall part 32 of the left side wall part 27 is connected to the lower side wall part 31 with a lower end placed on the upper end of the lower side wall part 31 by bolts. As shown in FIGS. 7 and 8, the upper end of the upper side wall 32 is bolted to a fixing bracket 33.

  As shown in FIGS. 3, 7, 8, and 10, the handling room 23 is provided with a handling cylinder 34 that rotates around an axis X along the machine longitudinal direction. A receiving net 35 is formed along the outer peripheral portion in a substantially arc shape in a front view. In the handling room 23, the harvested culm is thrown in from the front side of the machine body, and the handling cylinder 34 and the receiving net 35 perform the threshing process. The handling cylinder 34 is disposed in a rearwardly inclined position such that the rotation axis X is gradually inclined toward the rear of the fuselage so as to be inclined. Similarly to the handling cylinder 34, the receiving net 35 is provided in a rearwardly inclined position in a side view.

(Division structure of top plate)
As shown in FIGS. 3 and 4, the top 30 is configured by a plurality of divided tops 36 divided along the rotation axis of the handling cylinder 34. A support frame 38 is provided at each of the divided boundaries 37 between the divided top plates 36 so as to extend in the lateral direction from one lateral portion to the other lateral portion of the threshing device 4. The support frame 38 is formed of a plate-like body in a vertical orientation, and specifically, six support frames are provided. Five divided top plates 36 divided in a state of being partitioned by the six support frames 38 are separately provided detachably along the horizontal direction.

  As shown in FIGS. 7 and 8, the top plate 30 that covers the upper part of the handling chamber 23, specifically, each of the plurality of divided top plates 36, substantially follows the rotation trajectory of the outer end of the handling drum 34. , Are provided in a substantially curved shape when viewed from the front. Each of the divided top plates 36 is configured by two top plate structures 39 and 40 divided along the circumferential direction of the handling cylinder 34. The right top plate structure 39 corresponding to the right half of the two top plate structures 39 and 40 is formed in a smooth arc shape. The left top plate constituting body 40 corresponding to the left half is formed by bending a flat plate at two places and having three flat portions.

  The right top panel structure 39 is bolted to a fixing bracket 41 whose right end is fixed to the support frame 38. The right side top plate 39 has a configuration in which both front and rear sides are held by an arc-shaped rail portion 42 provided on a side surface of the support frame 38. As shown in FIGS. 8 and 9, the rail portion 42 has an inner rail portion 42a on the inner peripheral side and an outer rail portion 42b on the outer peripheral side, and the end of the right top plate structure 39 is connected to the inner rail portion 42a. And is slidably supported by the outer rail portion 42b.

  The left end portion of the right top plate structure 39 is bent outward in a substantially L-shape to receive the end portion of the left top plate structure 40, and the contact is restricted from above by the contact member 43. A locking portion 39a is formed. As shown in FIG. 4, the contact members 43 are provided so as to extend long in the front-rear direction so as to contact from above each of the five divided top plates 36, and the six support frames 38 are provided. Fixed by bolts.

  As shown in FIGS. 7 and 8, the left top plate structure 40 has a mounting surface 40 a in a vertical orientation at both front and rear ends, and a plurality of bolts are provided in a state where the mounting surface is brought into contact with the support frame 38. They are connected and fixed to the support frame 38. The left top plate constructs 40 located on both front and rear sides with respect to the support frame 38 are fixed in a state where they are jointly connected by bolts with the support frame 38 interposed therebetween. An outer left end portion of the left top plate structure 40 is connected to the fixing bracket 33 by bolts.

  As shown in FIG. 10, the handling cylinder 34 has a scraping portion 44 located on the front end side to scrape the harvested grain culm, and a handling portion located behind the scraping portion 44 to handle and process the harvested grain culm. A processing unit 45 is provided. The scraping unit 44 is configured to scrape the harvested grain stem fed from the feeder 12 into the handling chamber 23 by the spiral blade 46. The handling unit 45 has a configuration in which a plurality of rod-like members 47 are provided at intervals in the circumferential direction, and a plurality of rod-like gripping teeth 48 are provided on each of the rod-like members 47 so as to protrude radially outward. I have.

  Five divided top plates 36 of the top plate 30 corresponding to the handling unit 45 are provided detachably along the horizontal direction. The upper surface 49 corresponding to the scraping portion 44 of the handling cylinder 34 has a shape that is continuous in the circumferential direction, and cannot be attached or detached along the lateral direction. This is because the receiving network 35 does not exist in this area, and the frequency of the maintenance work is low.

  The top plate 30 having the above configuration can be detached outward toward the left side of the fuselage as an example of one lateral side of the fuselage. When removing the top plate 30, first, the bolt connection of the left top plate structure 40 to the support frame 38 is released, and the top plate 30 can be removed to the left outside of the fuselage. Next, the bolt connection of the right top plate structure 39 to the fixing bracket 41 is released. At this time, work is performed through an opening formed at an appropriate place in the right side wall portion 26. After releasing the bolt connection, the body can be slid along the rail portion 42 toward the outside of the left side of the fuselage and pulled out of the left side.

[Division structure of side wall]
As shown in FIG. 3, the upper side wall portion 32 of the left side wall portion 27 is provided at a position corresponding to the lower portion of the handling cylinder 34 and the receiving net 35 in a side view. The upper side wall portion 32 is constituted by a plurality of divided walls 51 divided along the rotation axis of the handling cylinder 34. Each of the divided walls 51 is detachably supported along the lateral direction.

  The dividing wall 51 is divided at the same position as the top plate 30 along the direction of the rotation axis, and is detachable in the same direction as the top plate 30, that is, toward the left side of the machine body. In addition, as described above, the divided wall 51 (upper side wall 32) is connected to the upper and lower sides by bolts, and can be removed to the left outside by releasing the bolts. . As shown in FIGS. 3 and 4, a pair of front and rear vertical frames 52 is provided on the left lateral side of the threshing device 4 in a state of being erected from the main frame 20. A gap is formed between the partition wall 51 and the adjacent partition wall 51 in the lateral direction, and the partition wall 51 can be removed through the gap.

[Received network division structure]
The receiving net 35 is constituted by a plurality of divided receiving nets 53 divided along the rotation axis of the handling cylinder 34. The divided receiving network 53 is detachably supported in the lateral direction. The receiving net 35 is divided at the same position as the top plate 30 along the rotation axis of the handling cylinder 34, and is detachable in the same direction as the top plate 30, that is, toward the left side of the machine body.

  The receiving net 35 is provided at a position corresponding to the four divided top plates 36 located on the front side of the five divided top plates 36, and is provided with four divided receiving nets 53. The receiving net 35 is provided in a substantially curved shape in a front view so as to substantially follow the rotation locus of the outer end of the handling cylinder 34. Then, as shown in FIG. 7, each divided receiving network 53 is constituted by two receiving network members 54 and 55 divided along the circumferential direction of the handling cylinder 34.

  The right receiving net structure 54 is received and guided by an arc-shaped guide member 56 attached to the front and rear side surfaces of the support frame 38, and is supported in a state where the right end thereof abuts on the right fixing bracket 41. I have. The left end is bolted to a relay bracket 57 provided at a connection point between the left and right receiving net members 54 and 55. The left receiving net structure 55 has a right end portion bolted to the relay bracket 57 and a left end portion bolted to the left fixing bracket 33. The left and right intermediate portions are bolted to the support frame 38. The connection point to the support frame 38 is fixedly fastened together with the receiving net structure 55 adjacent to the support frame 38 with the support frame 38 interposed therebetween.

  Therefore, the left receiving network member 55 can be detached outward on the left by releasing the connection by the plurality of bolts. By removing the bolt connection to the relay bracket 57 after removing the left receiving network member 55, the right receiving network member 54 can be removed.

  As shown in FIG. 5, a portion corresponding to the scraping portion 44 of the handling cylinder 34 and a portion corresponding to the lower side of the upper surface 49 is used for handling the cut grain culm transported by the feeder 12. A threshing inlet plate 59 for guiding to the entrance of the chamber 23 is provided. The threshing inlet plate 59 includes a side surface portion 60 that covers the left and right sides of the scraping portion 44 of the handling cylinder 34, and a bottom portion 61 that is formed to have a shape that gradually widens from the outlet of the feeder 12 to the diameter of the handling cylinder 34. Provided. The bottom surface portion 61 is divided by a separation surface at the center in the left-right direction.

  Accordingly, the threshing inlet plate 59 is configured to be divided into four parts, namely, left and right side portions 60 and left and right bottom portions 61. The left side surface portion 60 and the left bottom surface portion 61 are bolted together in a partially overlapping state. The right side portion 60 and the right bottom portion 61 are bolted together in a partially overlapping state. As shown in FIG. 6, the head of the bolt Bo is formed with a hexagonal hole into which a hexagonal wrench can be engaged. The left and right side portions 60 and the upper surface 49 are bolted together by flange connection. The threshing inlet plate 59 can be easily removed by releasing the bolt connection even if it is worn by the flow of the crop. The left and right side portions 60 can be removed laterally, and the left and right bottom portions 61 can be removed toward the front of the machine with the feeder 12 removed.

[Grain tank, engine support structure]
As shown in FIGS. 4, 7, and 12, on both lateral sides of the threshing device 4, upper portions extending along the rotation axis direction of the handling drum 34 (the longitudinal direction of the body) over the upper portions of the plurality of support frames 38. A frame 62 is provided. The upper frame 62 is configured to have a rearwardly inclined posture, and the upper surface is configured to be wide in the left-right direction. The grain tank 5 and the engine 6 are mounted and supported on the left and right upper frames 62. A pair of front and rear vertical frames 52 is provided on the left lateral side of the threshing device 4 so as to be erected from the main frame 20.

  As shown in FIG. 3, the grain tank 5 has a bottom surface formed in a downward constricted shape, the bottom surface of the front side in the rearwardly inclined position is supported by the front side support frame 63, and the rear side The bottom surface of the rear upward inclined posture is supported by the rear support frame 64. The front-side support frame 63 extends over both left and right sides of the threshing device 4 and is mounted and supported on the left and right upper frames 62 and connected by bolts. Similarly to the front support frame 63, the rear support frame 64 extends over both left and right sides of the threshing device 4, and is mounted and supported on the left and right upper frames 62.

  The rear-side support frame 64 includes left and right tank lateral support portions 65 formed in a substantially trapezoidal frame shape in side view, and left and right tank lateral support portions 65 (shown in the figure). ) Are provided. The left and right tank lateral support portions 65 are mounted and supported on the left and right upper frames 58, respectively.

  The engine support frame 67 that supports the engine 6 extends over both left and right sides of the threshing device 4 and is mounted and supported on the left and right upper frames 62. The engine support frame 67 is provided with left and right side vertical surfaces 68 extending above the left and right upper frames 62 along the front-rear direction, and a horizontal connecting member (not shown) for connecting the left and right vertical surfaces 68.

(Dust valve)
In the handling room 23, the threshing product is transferred from one side (front side of the fuselage) to the other side (rear side of the fuselage) of the handling drum 34 in the rotation axis center position on the inner surface side of the top plate 30. A dust valve 70 is provided. As shown in FIGS. 10 and 11, the dust-feeding valves 70 are arranged at intervals in the direction of the axis of rotation from front to rear of the handling cylinder 34 from a position corresponding to the front end of the handling cylinder 34. There are several. The plurality of dust valves 70 are attached to the inner surface of the top plate 30, respectively, and are provided in a state of extending spirally while being located on the outer peripheral side of the handling cylinder 34. That is, as the position of the dust feed valve 70 changes from the upper side to the lower side in the circumferential direction of the handling cylinder 34, the position of the handling tooth 48 changes with respect to the rotation of the The machine is provided with a predetermined feed angle so that the threshing product is transferred to the rear side of the fuselage.

  Each of the plurality of dust valves 70 is provided with a fixed dust valve portion 71 attached to the top plate 30 in a fixed position, and adjacent to the fixed dust valve portion 71 in the circumferential direction, and at a feed angle by swinging. And a movable dust supply valve portion 72 capable of changing and adjusting the pressure. As shown in FIG. 8, the stationary dust supply valve portion 71 is provided on the upper side in the rotation direction of the handling cylinder 34, and the movable dust supply valve portion 72 is provided on the lower side in the rotation direction. Also, in a state where the fixed dust valve portion 71 is located on the lower side in the processing object transfer direction with respect to the movable dust valve portion 72, and the fixed dust valve portion 71 and the movable dust valve portion 72 extend along the circumferential direction. Are provided in duplicate.

  In addition, as shown in FIG. 8, as shown in FIG. 8, each of the fixed dust valve portion 71 and the movable dust valve portion 72 has a mounting surface connected along the plate surface of the top plate 30 and is orthogonal to the plate surface. It has a substantially L-shaped cross-section having a feed action surface 74 extending in a state where it moves. The handling cylinder 34 is configured to rotate clockwise in a front view. At a position on the lower side (the right side in FIG. 8) in the rotation direction of the fixed dust valve portion 71, only the feeding action surface 74 is formed to extend, and the movable dust valve portion 72 is located on the lower side in the processing object transfer direction, It is provided in a state of being located on the rear side in the front-rear direction and overlapping in the circumferential direction.

  The fixed dust valve portion 71 includes a first fixed dust valve portion 71a fixed to the inner surface of the right top plate member 39 and an inner surface of a flat plate portion 40A located on the right side of the left top plate member 40. And a second fixed dust feed valve portion 71b to be fixed. At the connection point between the first fixed dust valve portion 71a and the second fixed dust valve portion 71b, as in the overlapping portion with the movable dust valve portion 72, the lower side of the first fixed dust valve portion 71a in the rotation direction. At the position (right side in FIG. 8), only the feeding action surface 74 is formed to be extended, and is located on the lower side in the processing object transfer direction, that is, on the rear side in the longitudinal direction of the machine body with respect to the second fixed dust valve portion 71b. And are provided in a state of overlapping in the circumferential direction.

  The movable dust valve portion 72 is attached to the inner surface of the flat plate portion 40 </ b> B located in the middle of the left top plate structure 40. The right top plate structure 39 corresponds to the fixed side corresponding portion, the left top plate structure 40 corresponds to the movable side corresponding portion, and the fixed side corresponding portion is formed longer than the movable side corresponding portion. Moreover, the fixed dust-feeding valve portion 71 is formed to extend to the movable-side corresponding portion along the circumferential direction beyond the right-side top plate 39 which is the fixed-side corresponding portion.

  The movable dust valve portion 72 is rotatably supported on the top plate 30 about a rotation axis P2 at an overlapping portion with the second fixed dust valve portion 71b, which is the upper end in the rotation direction. . The end of the movable dust valve portion 72 on the lower side in the rotation direction (on the side opposite to the second fixed dust valve 71b) is configured so that the swing angle can be changed and adjusted by a manual operation via an adjusting member 75. I have.

  In addition, the movable dust feed valve portion 72 is supported at the upper end in the rotational direction by the support shaft 76 with respect to the top plate 30. An adjusting member 75 is bolted to the lower end in the rotation direction. The adjusting member 75 is configured to be slidable by manual operation within the range of the elongated hole 77 (see FIG. 11). When the bolt is loosened and the adjusting member 75 is slid, the movable dust feed valve portion 72 is swung around the axis P2 (rotation fulcrum) of the support shaft 76, and the feed angle for transferring the threshing processed material is changed. Can be adjusted. After changing the feed angle, the position can be fixed by tightening the bolt.

[Another embodiment]
(1) In the above embodiment, the top plate 30 is constituted by five divided top plates 36 divided along the rotation axis of the handling cylinder 34, and each of the five divided top plates 36 Although the configuration is shown in which two top plate components 39 and 40 are divided along the circumferential direction of the handling cylinder 34, instead of this configuration, for example, four or less, six or more It may be configured by a plate, or the divided top plate may be configured by three or more top plate structures. Further, a plurality of divided top plates may be configured as an integral shape that is continuously connected along the circumferential direction of the handling cylinder 34, and the top plate is not divided along the rotation axis of the handling cylinder 34. , May be provided as an integral form.

(2) In the above embodiment, the receiving net 35 and the side wall 27 are divided at the same position as the top plate 30 along the axis of the rotation axis, and are detachable in the same direction as the top plate 30. However, instead of this configuration, the configuration may be such that the top plate 30 is divided at a position different from that of the top plate 30 along the axis of the rotation axis, and may be detachable in a direction different from that of the top plate 30. . Further, the receiving net 35 and the side wall 27 may not be divided.

(3) In the above-described embodiment, the grain tank 5 and the engine 6 are configured to be disposed so as to be located above the threshing device 4, respectively. However, instead of this configuration, the grain tank 5 and the engine 6 are arranged. May be arranged side by side with the threshing device 4.

  The present invention can be applied not only to a normal combine, but also to a self-contained combine.

Reference Signs List 4 threshing device 5 grain tank 6 engine 23 handling room 27 side wall 30 top plate 34 handling cylinder 35 receiving net 36 divided top plate 38 support frame 39, 40 top plate structure 51 divided wall 53 divided receiving net 62 upper frame 70 dust sending Valve 71 Fixed dust valve 72 Movable dust valve

Claims (7)

A threshing device for threshing the harvested culm in the handling room,
The handling chamber is provided with a handling cylinder that rotates around the front-rear axis, and an arc-shaped receiving net provided along an outer peripheral portion of the handling cylinder,
A combine wherein a top plate covering an upper part of the handling room is detachably supported along a lateral direction. The top plate is configured by a plurality of divided top plates divided along the rotation axis of the handling cylinder,
The plurality of divided top plates are separately removable along the horizontal direction,
A support frame extending from one lateral portion to the other lateral portion of the threshing device is provided at a dividing boundary between the plurality of divided top plates,
The combine according to claim 1, wherein the plurality of divided top plates are supported by the support frame. Each of the plurality of divided top plates can be divided into a plurality of top plate structures divided along the circumferential direction of the handling cylinder,
The top plate structure located on one side in the horizontal direction is detachably supported on the support frame from one side in the horizontal direction,
The combine according to claim 2, wherein the top plate structure located on the other side in the lateral direction is supported by a rail portion provided on the support frame so as to be able to be inserted and removed along the lateral direction. Above the threshing device, a grain tank that stores the grains after being subjected to threshing by the threshing device, and an engine as a power source are provided,
On both lateral side portions of the threshing device, an upper frame extending along the rotation axis center direction is provided over upper portions of the plurality of support frames,
The combine according to claim 2 or 3, wherein the grain tank and the engine are supported by the left and right upper frames. The receiving net is constituted by a plurality of divided receiving nets divided along the rotation axis of the handling cylinder,
The side wall of the threshing device is constituted by a plurality of divided walls divided along the rotation axis center direction,
The combine according to any one of claims 1 to 4, wherein the split receiving net and the split wall are each detachably supported along a lateral direction.   The combine according to claim 5, wherein the split receiving net and the split wall are split at the same position as the top plate along the rotation axis direction, and are detachable in the same direction as the top plate. . The threshing material is transferred from the one side of the rotation axis of the handling cylinder to the other side at intervals along the rotation axis of the handling cylinder on the inner surface side of the top plate in the handling chamber. A plurality of dust valves are provided,
For each of the plurality of dust valves, a fixed dust valve portion attached to the top plate in a fixed position, a circumferentially adjacent to the fixed dust valve portion, and changing a feed angle by swinging. A combine according to any of the preceding claims, comprising an adjustable movable dust valve part.

Images