JP2006204138A - Sub-sorting fan for threshing equipment - Google Patents

Abstract

[PROBLEMS] A conventional combine has an upper part of a sorting chamber, that is, a sorting air of a main tang does not reach a swinging sorting shelf, and a space part is inevitably formed below an inlet funnel. There is a problem that the limited and narrow traveling frame is not effectively used.
The present invention includes a threshing device (5) mounted on a traveling frame (3) of a combine (2), a lower part of an inlet funnel (7) on the front side of the threshing device (5), and a mowing suspension base. The sub-sorting fan (9) is placed in the space (6) created between (1) and the sub-sorting fan (9) allows the sorting air of the main tang to reach the sorting room (8). It is a sub-selection wind fan of a threshing device that is configured to blow sub-selection wind into a blind spot.
[Selection] Figure 1

Description

  The present invention relates to a threshing apparatus mounted on a combine traveling frame, and to a sub-selection wind fan of a threshing apparatus provided with a fan for blowing a sub-selection wind into a sorting chamber.

  Conventionally, the sorting device in this type of threshing device is called a secondary fan, in addition to the compressed wind tang that becomes the main tang, and the sub-selected wind fan that blows the sub-selected air to assist the main conditioned air in the sorting room. There has been known a configuration in which the accuracy of sorting is improved by providing the above. For example, a second fan is installed on the upper side of the compressed wind tang, and the structure that blows the secondary sorting air on the swing sorting shelf where the main sorting wind does not reach, or the device between the first and second transfer spirals, An apparatus or the like for mainly enhancing the effect of sorting second items is known.

As an example, for example, in the public utility model publication No. 62-33243, as shown in FIG. 2 and FIG. A technology that greatly improves the sorting accuracy in the upper part of the sorting chamber is disclosed by installing a sub-sorting fan on the uppermost side of the machine and blowing the sub-sorting air on the swing sorting shelf where the sorting wind of the main carp does not reach ing.
Japanese Utility Model Publication No. 62-33243

  Usually, when a threshing device is mounted on a traveling frame of a combine, when the threshing device is placed at the rear position of the mowing suspension stand at the front of the frame with the cereal supply port in front, the front side of the cereal supply port In the arrangement configuration, a space portion is formed below the inlet funnel provided continuously. Therefore, the conventional combine generally uses this space portion as a hot air exhaust passage from the engine, and there is a problem that a limited narrow combine traveling frame is not effectively used.

  The invention according to this application makes effective use of the above-mentioned space portion, is equipped with a sub-selection wind fan without increasing the length of the combine front and back, and is located above the main tongue where the selection wind of the main tongue does not reach. The sub-sorting air is blown onto the swing sorting shelf to improve the sorting accuracy of the entire sorting chamber.

  In order to solve the above-mentioned problem, the invention described in claim 1 is characterized in that a traveling frame (3) of a combine (2) equipped with a cutting suspension base (1) projecting upward at the front side. ) The threshing device (5) is mounted on the cereal supply port (4) on the top, and the space (6) formed between the threshing device (5) and the mowing suspension stand (1). Then, the sub-sorting fan (9) for blowing the sub-sorting air into the upper part of the sorting chamber (8) of the threshing device (5) at the lower position of the inlet funnel (7) in front of the cereal supply port (4) An auxiliary funnel for a threshing device, characterized in that it is provided with a shaft mounted between the cutting suspending stand (1) on the front side and the threshing device (5) mounted behind it. By effectively utilizing the lower space part (6) of (7), the auxiliary sorting fan (9 The is placed, which is intended to be able to improve the sorting accuracy by blowing secondary sorting wind on the swing sorting shelves in part does not reach sorted wind from the main winnowing fan.

  Next, the invention described in claim 2 is characterized in that the sub-sorted fan (9) is configured to have a diameter as large as possible when the fan is installed in the space (6). A sub-sorting fan for the threshing device described above, wherein the fan capacity can be configured to be maximized in a limited narrow space, and a sufficient sub-sorting wind can be supplied to the upper part of the sorting chamber, and the engine is passed through a dust screen. The hot air can be sucked into the sorting chamber. Therefore, the present invention can blow a sub-sorting air suitable for wet handling and the like.

  Next, in the invention described in claim 3, the traveling frame (3) has a high front frame (3 a) equipped with the sub-selection wind fan (3), and is mounted with the threshing device (5). The rear frame (3b) is configured as a continuous frame having a lowered step, and the sub-selection wind fan (9) is connected between the compressed air tang (10) of the threshing device (5) and the mowing suspension stand (1). A sub-selection wind fan for a threshing device according to claim 1 or 2, wherein the fan is configured to have a diameter as large as possible when the device is installed in the space (6) formed therebetween. A crawler is provided below the frame (3), and a drive sprocket is disposed below the front frame (3a). Therefore, the crawler is relatively easy to mount and remove because the ground height of the front frame (3a) is high, and it is a device with good mud removal. And since the threshing device is mounted on the middle rear frame (3b) having a low ground height, it is possible to increase the vertical capacity while maintaining the height position of the upper part, and to greatly improve the sorting ability. It became possible.

  First, the invention described in claim 1 is a space formed between the cutting suspension base (1) on the front side and the threshing device (5) mounted behind it, and below the inlet funnel (7). There is a feature that a sub-selection fan (9) is provided by effectively utilizing the section (6). And this invention mounts a sub-selection wind fan (9) without lengthening the total length of a combine, and blows a sub-selection wind on the swing selection shelf in the site | part which a selection wind does not reach from a main tang. There is a specific effect that can improve the sorting accuracy.

  The invention described in claim 2 achieves the effects of claim 1, but can be configured to maximize the fan capacity in a limited narrow space, thereby selecting a sufficient sub-selected air. In addition to being able to supply to the upper part of the room, the engine has a feature that the hot air of the engine is sucked through the dust-proof net to prevent the heat from stagnating and blown into the sorting room.

  And since this invention can blow the hot air from an engine on a rocking sorting shelf as a sub-sorting wind, it becomes the sorting wind suitable for wet handling etc., and has the characteristics which can improve sorting accuracy effectively.

  According to the third aspect of the present invention, a crawler is provided below the traveling frame (3), and a drive sprocket pivotally mounted on the traveling mission is provided below the high front frame (3a). Since this is arranged, there is an effect that the maintenance work of mounting and removing the crawler can be facilitated. And the said structure becomes a favorable apparatus of mud removal (a mud is easy to come out to the back side), and there exists an advantage which the driveability of the wet field improved significantly.

  And since the threshing device (5) is mounted on the intermediate rear frame (3b) having a low ground height, the vertical volume is increased while maintaining the upper height position (without increasing the threshing device). It has a feature that the sorting ability is improved by extending and expanding to the side.

  First, a main part of the embodiment according to the present invention is a threshing device 5 on a traveling frame 3 provided with a cutting suspension base 1 projecting obliquely upward and forward at a front end, with a cereal supply port 4 in front. Is mounted on the space 6 formed between the mowing suspension base 1 and the threshing device 5 below the inlet funnel 7 continuous with the cereal supply port 4 of the threshing device 5. And the wind of the fan 9 is blown above the sorting chamber 8 of the threshing device 5 to the swing sorting shelf 11 side where the sorting wind of the main tang (pressure wind tang 10) does not reach.

  As described above, the embodiment is characterized in that the sub-selective wind fan 9 is installed without effectively increasing the total length of the combine 2 by effectively using the limited and narrow traveling frame 3, and further, the compressed wind tang There is also a feature that the sorting accuracy is improved by blowing the sub-sorting wind into the blind spot portion where the sorting wind sent from 10 does not reach.

Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIG. 1, the traveling frame 3 of the combine 2 forms a front frame 3 a equipped with a sub-selection wind fan 9, and lowers an intermediate rear frame 3 b equipped with a threshing device 5 to form a step, It is composed of continuous frames. As shown in the drawing, the mowing suspension base 1 is provided at the front end of the front frame 3a of the traveling frame 3 so as to project obliquely toward the upper front side, and the rear upper end of the mowing frame 12 is rotated up and down. It is configured to support and support freely.

  As shown in FIGS. 5 and 6, the reaping frame 12 is provided with a weed culm 13 and a cereal raising device 14 at the front, and the reaping device 15 is further lowered. The pre-harvesting pretreatment device is configured by providing upper and lower cereal feeders 16 that are mounted on the side and transport the chopped cereals to the threshing device 5.

  Next, as shown in FIG. 1, the threshing device 5 is mounted on the intermediate rear frame 3b having a lower stepped portion of the traveling frame 3 with the cereal supply port 4 on the front side. In this case, the lower bottom surface of the threshing device 5 is mounted so as to be lowered to a position lower than the lower end of the front cutting suspending stand 1. The threshing device 5 extends the inlet funnel 7 continuously provided on the front side of the cereal supply port 4 to the chopping suspension stand 1 side, and conveys the cereal from the terminal portion of the cereal conveying device 16 on the chopping frame 12 side. It has been set up so that it can inherit the samurai.

  A space 6 is inevitably formed below the inlet funnel 7 between the mowing suspension base 1 and the threshing device 5. In this case, the space portion 6 is formed in a state surrounded by three members, that is, the first harvesting suspension on the front side, the compressed air tang 10 of the threshing device 5 on the rear side, and the inlet funnel 7 on the upper side. The sub-selection wind fan 9 is positioned at the site and is configured on the traveling frame 3. As shown in FIG. 1 to FIG. 3, the sub-selection wind fan 9 sucks outside air using the cross-flow fan as a portion of the dust net 17 that is stretched on the lower side as an intake port. Sub-selection wind on the side of the swing sorting shelf 11 that is arranged in the same phase as the engine 18 (meaning that the position in the front-rear direction is set to the same position) and swings freely on the top of the sorting chamber 8 of the threshing device 5 It is configured with a shaft so as to blow. In this case, as shown in FIGS. 3 and 7, the auxiliary sorting wind fan 9 is provided with a right side plate 35b of a casing 35 to be described later offset to the left side from the right side plate 8b of the sorting chamber 8, and an engine pulley 18a. In addition, a space for providing a related transmission device (fan input pulley 67 and the like) described later is secured.

  The sub-sorting fan 9 has a width so that a large amount of sub-sorting wind can be generated by enlarging the capacity as much as possible in a narrow space restricted from the surroundings when the fan is installed in the space portion 6. The diameter is made as large as possible.

  In this way, the sub-selection wind fan 9 uses the characteristics of the cross-flow fan to uniformly generate the selection wind in the width direction, and the sub-selection of the wind that has been uniformly generated over the entire width to the swing selection shelf 11 side. By blowing in as wind, there is almost no generation of sorting irregularities, and the exhaust (hot air) of the adjacent engine 18 is sucked from the entire surface of the dust screen 17 and can be blown into the sorting chamber 8 to handle wet handling. There is.

  Next, as shown in FIGS. 1 to 4, the threshing device 5 is configured by arranging a handling chamber 20 on which a handling cylinder 19 is pivoted on the upper side and providing a sorting chamber 8 below the handling chamber 20. The second processing chamber 21 and the dust removal processing chamber 22 are provided behind the handling chamber 20, and the second product returned from the sorting chamber 8 is processed by the second processing cylinder 21a, and the handling chamber 21a is used. The dust collection material inherited from the chamber 20 is configured to be processed by the dust processing cylinder 22a. The sorting chamber 8 is provided with the swing sorting shelf 11 on the upper side so as to freely swing, and on the lower side, from the upper side of the sorting direction, the compressed wind tang 10, the first transfer spiral 23, and the second transfer spiral 24. It is constructed with a shaft in order. The compressed air tang 10 is a main tang for the sub-selection wind fan 9 already described, and is configured to send the selection air to the selection chamber 8 in the same manner as a conventionally known threshing device. Reference numeral 26 denotes a dust exhaust fan.

  Next, as shown in the drawing, the feed chain 27 is provided outside the handling chamber 20 along the handling port. As shown in FIGS. A rotation support frame 31 is rotatably connected to a rotation fulcrum pin 29 supported obliquely by an outer support bracket 28 via a rotation bracket 30, and a chain rail 32 is connected and fixed to the rotation support frame 31. It is set as the structure which sandwiches and conveys the threshing cereal meal. As shown in the operation diagram of FIG. 8, the hood chain 27 is separated from the threshing device 5 in a state of being integrated with the rotation metal fitting 30, the rotation support frame 31, and the chain rail 32 with the rotation fulcrum pin 29 as a fulcrum. It is configured to be able to open and rotate outward.

  Thus, when the feed chain 27 is opened and rotated to a position far away from the threshing device 5, maintenance of each part (feed chain 27 side) of the threshing device 5 as well as attachment / detachment of the sub-selection wind fan 9 are performed. (A specific configuration will be described later), which makes maintenance easy. In this case, since the open mechanism (support metal fitting 28, rotation fulcrum pin 29, rotation metal fitting 30) is provided between the cutting suspension base 1 and the feed chain 27, the transmission device of the sub-speed wind fan 9 is obstructed. At the same time, the rotation fulcrum pin 29 is provided obliquely and rotated about the axis so that it can be rotated along a path that does not collide while avoiding the cereal conveying device 16.

  Next, as shown in FIG. 9, the sub-selection wind fan 9 is supported and accommodated inside the casing 35, and is configured to be detachable from the space 6 integrally with the casing 35. In the case of the embodiment shown in FIG. 9, the casing 35 is composed of left and right side plates 35a and 35b connected by a connecting member 42 and a casing body 35c. The casing body 35c will be described later with respect to the configuration of the sub-selection air passage 60. As shown in FIGS. 15 and 17, the casing body 35c is arranged in an arc shape on the upper side, and is arranged on the lower intake side (corresponding to the dust net 17). And the outlet side (the sub-sorted air passage 60 will be described later).

  As shown in FIGS. 10 and 12, the hollow shaft 38 is coupled with the input shaft 37 supported by the front plate 45 of the threshing device 5 by the support metal 36 so as to be freely inserted and removed. The fan 9 is attached and supported so that it can be inserted and driven from the shaft end.

  In the case of the embodiment, as shown in FIGS. 9 to 11, the casing 35 is provided with a transmission case 39 on the outside of the left side plate 35a, a frame side plate 40 on the outside thereof, and a feed chain on the outside thereof. A gear case 41 is provided, and these are configured as an integral structure so as to be detachable in an integral state. As shown in FIG. 12, the transmission case 39 has a casing left side plate 35a and a frame side plate 40 (the left side plate 8a of the sorting chamber 8 in plan view) in order to make the lateral width of the sub-selection wind fan 9 as wide as possible. And the same position in the width direction).

  As shown in FIGS. 9 and 10, the casing 35 is provided with several rollers 43 pivoted on an upper and lower connecting member 42 that connects the left and right side plates 35 a and 35 b together with the casing body 35 c. 43 is configured to be slidable by rolling on a slide rail 46 provided on the front plate 45 of the sorting chamber 8. As shown in FIG. 10, the slide rail 46 is formed such that the lower rail is formed longer from the upper side to the left side (feed chain 27 side), and the end of the casing 35 is hooked at the time of attaching / detaching work so that the attaching / detaching work is facilitated. The device is given.

  11 and 12, the lock mechanism is provided with an engagement pin 47 on the mowing suspension stand 1 side, a lock plate 48 on the front plate 45 side of the threshing device 5, and a corresponding casing 35. An engagement hole 49 is provided on the left side plate 35a side, a lock handle device 50 is provided on the outer frame side plate 40, and the casing 35 is accommodated and then held by engagement and locking. In the case of the embodiment, as shown in the drawing, the lock handle device 50 has a locking device at a portion to be inserted into the back side (back side) of the lock plate 48 when pressed against the lock plate 48, It is configured to be able to release the lock at (solid line position) and switch to the locked state at the side (virtual line position). As described above, the lock handle device 50 is configured to be able to switch between the locked state and the unlocked state during the attaching / detaching operation with respect to the lock plate 48 fixed to the threshing device 5.

  As shown in FIGS. 9 and 11, the frame side plate 40 is configured by attaching a bearing guide 52 that guides the sliding bearing 51 of the swing sorting shelf 11 of the sorting chamber 8. As described above, the sorting chamber 8 is a cavity that allows the operator to insert a hand by partially cutting the side plate 8a of the sorting chamber 8 of the threshing device 5 at a portion that is closed corresponding to the frame side plate 40. 54 is formed so that the inside can be cleaned and maintained.

  Therefore, when the sub-selected air fan 9 is removed together with the casing 35, the frame side plate 40 is opened in the cavity 54, so that the remaining rice in the air channel (sub-selected air channel 60 described later) can be cleaned by inserting a hand. There is a feature that the front part of the swing sorting shelf 11 can be cleaned relatively easily.

  Thus, as shown in FIG. 13, the sub-selected wind fan 9 opens the feed chain 27 to the outside, and then removes the casing 35 together with the sub-selected wind fan 9 to the outside. Since the space portion 6 is formed, the engine 18 located on the right side to the right side of the front frame 3a of the traveling frame 3 can be maintained.

  The casing 35 is not limited to the attachment / detachment direction only to the left side of the traveling frame 3 as in the above-described embodiment, and may be configured to be attached / detached to be taken upward in front of the traveling frame 3 as shown in FIG. Is possible. In this case, it is conceivable that the casing 35 is first removed forward and upward after first removing the grain feeder 16 and forming a take-out passage between the mowing suspension base 1 and the inlet funnel 7.

Next, the sub-selection air passage 60 for blowing the sub-selection air from the sub-selection air fan 9 into the upper portion of the selection chamber 8 will be described with reference to FIGS. 15 to 17.
First, as shown in plan view in FIG. 16, the sub-selected air passage 60 is provided over the entire width of the sub-selected air fan 9, but as shown in FIG. 15, as shown in FIG. 35 c) is extended to the front plate 45 of the sorting chamber 8, and a wind guide plate 61 is provided on the fan 9 side below the vertical width H to constitute an inlet of the air passage 60. The wind guide plate 61 has left and right ends attached to the left and right side plates 35 a and 35 b of the casing 35, and can be attached to and detached from the sub-selection wind fan 9.

  On the other hand, as shown in FIG. 15, the air passage configuration on the sorting chamber 8 side is such that the upper air guide plate 62 and the lower air guide plate 63 are arranged at an interval h at a portion corresponding to the inlet of the air passage 60. The front edge 45 is integrated with the front plate 45 of the sorting chamber 8, and the edge of the casing body 35 c and the edge of the lower wind guide plate 61 are brought into contact with each other so as to communicate with each other.

  Thus, as shown in FIGS. 15 and 16, the auxiliary sorting air passage 60 includes the leading edge of the casing body 35 c on the auxiliary sorting air fan 9 side, the lower wind guide plate 61, and the other sorting chamber. The upper and lower wind guide plates 62 and 63 provided on the side 8 are formed to have the same width, vertical distance (H, h), and angle (aperture angle), and are closely matched when joined in a communicating state. Thus, there is no step, and the sub-sorting air can be smoothly blown into the sorting chamber 8 without any resistance.

  Next, as can be seen from the drawing, the sub-selection air passage 60 of another embodiment shown in FIG. 17 is configured to connect the casing body 35c of the sub-selection air fan 9 and the wind guide plate 61 on the lower fan 9 side to the threshing device 5. It is set as the structure extended long so that it might insert in the sorting chamber 8. In this embodiment, the auxiliary sorting air passage 60 provided on the fan 9 side is inserted into the cavity 54 of the sorting chamber 8 already described.

  If comprised in this way, since all the wind guide plates which comprise this will become integral with the casing 35 of the sub-selection wind fan 9, the structure will be simplified, and it will be attached and detached integrally. On the other hand, on the side of the sorting chamber 8, if the sub-sorting fan 9 is removed, the wind guide plate does not remain, so that there are less obstructions and cleaning is easier.

It should be noted that the expressions “left and right” described in this specification are all described based on the state of the combine 2 viewed in the forward direction.
Next, the transmission mechanism of the combine 2 according to the embodiment will be described with reference to FIG.

  First, the engine 18 is configured such that the rotational power is branched into a threshing device 5 and a hydrostatic continuously variable transmission 65 of the traveling system and transmitted to both sides. The sub-selection wind fan 9 is configured as a transmission path that is input from the hydrostatic continuously variable transmission 65 to the fan input pulley 67 via the traveling mission device 66. The fan input pulley 67 is provided so as to be attached to the input shaft 37 which has already been described, and the one-way clutch 68 is provided on the shaft side, so that the reverse rotation (for example, when reverse rotational power is transmitted from the traveling mission device 66). ) Transmission is impossible.

  Then, as shown in the drawing, the feed chain 27 receives the rotational power synchronized with the traveling speed from the transmission case 39 described above via the sub-selection wind fan 9 via the hood chain gear case 41. It is configured to be transmitted.

  And the sub-selection wind fan 9 comprises the transmission path | route 70 input from the pressure wind tang 10 side of the threshing apparatus 5, as shown in FIG. This transmission path 70 is a transmission device used when performing the threshing operation while driving only the threshing device 5 with the traveling mission device 66 side stopped.

In the case of an Example, the clutch mechanism of the threshing apparatus 5 is comprised so that switching operation is possible to the position which transmits only the threshing apparatus 5, and the position which transmits simultaneously with the mowing apparatus 15 side.
Therefore, the combine 2, as already widely known, stops the traveling of the combine 2 and drives only the threshing device 5 side when the rice in the headland is cut by hand mowing to handle the pillow. The threshing operation can be performed while transmitting the sub-selection wind fan 9 and the feed chain 27 together with the threshing device 5 using the transmission path 70.

Left side view of threshing device showing inside Top view of the threshing device showing the interior Top view of the threshing device showing the interior Side view of part of the combine Top view of the combine Combine side view Top view of part of the combine Feed chain opening action diagram Cross-sectional plan view of sub-selective fan Front view of threshing device showing disassembled state Side view of the sub-selection fan removed from the travel frame Top view showing the inside of the sub-selection fan The top view which shows the disassembly state which removed the side sorting wind fan to the side Top view of the disassembled state where the sub-sorting fan is taken out forward and upward Side view of sub-sort air passage Plan view of the sub-selection air passage Side view showing another embodiment of the sub-selected air path Transmission mechanism diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mowing suspension 2 Combine 3 Traveling frame 3a Front frame 3b Middle rear frame 4 Grain supply port 5 Threshing device 6 Space part 7 Inlet funnel 8 Sorting room 9 Sub-sorting wind fan 10 Pressure wind tang

Claims (3)

  The threshing device (5) is placed on the traveling frame (3) of the combine (2) equipped with the mowing suspension (1) that protrudes forward and forward at the front, with the cereal supply port (4) in front. Mounted and below the inlet funnel (7) in front of the grain supply port (4) in the space (6) formed between the threshing device (5) and the mowing suspension (1) A sub-selection wind fan for a threshing apparatus, wherein a sub-selection wind fan (9) for blowing a sub-selection wind is provided at a position above the selection chamber (8) of the threshing apparatus (5).   The sub-selection wind fan of the threshing apparatus according to claim 1, wherein the sub-selection wind fan (9) is configured to have a diameter as large as possible when it is installed in the space (6).   The traveling frame (3) has a step which has a front frame (3a) equipped with the sub-selection fan (9) higher and a lower intermediate rear frame (3b) equipped with the threshing device (5). Constructed in a frame, the sub-sorting fan (3) is located in the space (6) formed between the compressed air tang (10) of the threshing device (5) and the mowing suspension (1). 3. A sub-selective wind fan for a threshing apparatus according to claim 1, wherein the fan is configured to have a diameter as large as possible.

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