JPH0611432U - Gutter opening and closing device for paddy conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] In a gutter placed below the first and second conveyors arranged below the combine selection processing unit, the gutter can be easily cleaned and opened with a large opening. It is intended to make it easy and to lock securely when the gutter is closed. [Structure] A rotary shaft 5 is pivotally supported by a side plate of the machine laterally on the side of the gutter 1 located at the bottom of the conveyor's thrower, and the gutter 1 is fixed from the rotary shaft 5 via a gutter arm 4. A vertical rotation arm 6a for urging the trough 1 to rotate upward by a torque spring 2, and a vertical rotation arm 6a for rotating the rotation shaft 5, and a lock lever 6b for rotating the rotation shaft 5 in the direction of the rotation axis at its tip. The lock arm 6 is pivotally supported, and a stopper 7 for locking and fixing the lock lever 6a is provided when the gutter is closed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of the gutter of the paddy conveyor disposed below the sorting processing unit of the combine.

[0002]

[Prior art]

 The combine processing section removes the straw debris mixed in the shattered paddy in the upper threshing section, and the sorted processed paddy leaves the paddy conveyor (the first conveyor and the two conveyors installed below the sorting processing section. It is transported to the Glen tank and the reprocessing section by the No. conveyor. A technique for opening and closing the gutter for cleaning the gutter on the paddy conveyor is known. For example, as shown in FIG. 16, a lower part of the gutter 1 of each of the first conveyor 17 and the second conveyor 18 is known. A method of pressing and supporting an arm 34 attached to the gutter 1 by a torque spring 33, and opening and closing the gutters 1 and 1 by rotating the arm, and as shown in FIG. A method of rotating the arm 36 attached to the lower part to open and close it, or a method of providing an opening in the gutter 1 and horizontally withdrawing the shutter 37 as shown in FIG. 18 are known.

[0003]

[Problems to be solved by the device]

 In the gutter opening / closing structure conventionally used as described above, first, in the opening / closing structure of FIG. 16, since the arm 34 is pressed by the torque spring 33, the turning width is small, and therefore, the opening of the gutter is small. Will decrease. In FIG. 17, the structure is complicated and the cost is high, and the adjustment of the angle of the link is complicated. In addition, as shown in Fig. 18, in the structure that slides the shutter in the horizontal direction, the shutter slides heavily due to rust and clogging, and the shutter and gutter are damaged by opening and closing forcibly. It also causes rubbing. From the above, there is a demand for a gutter opening / closing device that has a structure that can be opened and closed by rotating the gutter in the vertical direction, and that is simple and has a large swing width.

[0004]

[Means for Solving the Problems]

 The present invention has the following structure in order to solve the above problems. That is, in the gutter which receives the bottom of the paddy conveyor arranged below the combine processing section, a rotary shaft is provided in parallel with the gutter, and the vertical turning arm is fixed to the end of the rotary shaft, and the tip of the vertical turning arm is fixed. A lock lever that is rotatable in the direction of the rotation axis is pivotally supported on the machine to lock it to the machine body, and a gutter is fixed to the rotation shaft, and a torque spring that urges the gutter upward is provided. It can be released downward.

[0005]

[Action]

 When the gutter is closed, the lock lever 6b is locked to the stopper 7 and the rotating shaft 5 is fixed, so that the gutter arm 4 is fixed at the gutter closed position and the torque spring 2 presses the gutter 1 from below. The gutter 1 is locked while covering the bottom of the conveyor. When the gutter is opened, the lock lever 6b is horizontally rotated to disengage from the stopper 7, and the lock lever 6b and the vertically rotating arm 6a are rotated upward, whereby the rotary shaft 5 is rotated. It is possible to move the gutter arm 4 and the torque spring 2 downward to rotate the gutter 1 downward and to open the gutter 1.

[0006]

【Example】

 The problems and configurations to be solved by the present invention are as described above. Next, the embodiments of the present invention shown in the accompanying drawings will be described. 1 is an overall side view of the combine, FIG. 2 is a plan view of a paddy combiner gutter opening / closing device, FIG. 3 is a sectional view taken along line XX in FIG. 2, and FIG. 4 is a side view of the sorting processing part side plate 22 seen from the outside. Fig. 5, Fig. 5 is a front view of the stopper 7, Fig. 6 is a side sectional view of the threshing unit B, the sorting processing unit C, Fig. 7 is a front cross-sectional view of the threshing unit B, the sorting processing unit C, and the Glen tank E, Fig. 8 Is a side view showing the interlocking structure of the Karako's air intake shutter 26 and the guide plate 27, FIG. 9 is a view in the direction of the arrow W in FIG. 10, and FIG. 10 is a front sectional view showing the shape of the outlet of the first conveyor 17. 11 is a side view of the outlet, FIG. 12 is a front view showing the shape of the cleaning port lid 32 in the inheritance case 29, FIG. 13 is a view in the Y direction of FIG. 12, and FIG. Z sectional view, FIG. 15 is a perspective view of the cleaning port lid 32, FIG. Is a front sectional view showing the shape of the outlet of the outlet slot 17'c of the first most conventional conveyor and the spline fitting state, and FIG. 20 is the front showing the shape of the conventional inheritance case 29 'and the lid 38 for the cleaning port. 21 and 22 are the same side views.

To explain the overall schematic configuration of the combine with reference to FIG. 1, a frame F is attached to the upper part of the crawler traveling device G, and the left side in the plan view (front side in FIG. 1) of the frame F is the threshing part B. The lower part is a sorting processing part C, the right part is an operation part D, and the rear part is a Glen tank E. Further, a cutting section A is arranged in front of the threshing section B and the selection processing section C.

In the operation by the combine, the grain culm is cut and conveyed from the reaping section A, the stocker side is grasped by the feed chain 7 and conveyed to the threshing section B, and threshed by the handling barrel 8. The threshed straw is conveyed by the straw chain 10, cut by the straw cutter device 11 and discharged onto the field. Then, the grains and the like that have been shredded by the handling cylinder 8 fall into the sorting processing unit C disposed below the threshing unit B and are sorted. Further, behind the handling barrel 8, a dust inlet processing barrel 9 is laid horizontally on the side of the Glen tank E in parallel with the handling barrel 8, and a branch stem is sent untreated by the handling barrel 8. Threshing treatment such as graining. Reference numeral 21 is an auger for discharging the grains in the grain tank E to a transport machine or the like.

The selection processing structure will be described with reference to FIGS. 6 and 7. The threshed grains pass through the crimp nets 12 and 13 arranged at the lower part of the handling cylinder 8 and the dust inlet processing cylinder 9, respectively, and only paddy and small straw waste fall into the sorting processing section C. A dust-exhaust fan 14 is provided behind the crimp net 13 so that straw dust or the like is discharged to the outside of the machine. The sorting processing section C is composed of a swing sorting device 15, a Kara 16 and the like, and sorts grains or the like that have passed through the crimp nets 12 and 13 into the first product, the second product, and the straw waste. It does. In addition, the first product drops to the first conveyor 17 of the paddy conveyor and is conveyed to the side, is stored in the grain tank E through the grain elevator 19 and the second product drops to the second conveyor 18 of the paddy conveyor. Then, it is sent again by the second reduction conveyor 20 onto the grain plate 15a of the rocking sorting device 15 and is sorted again, and the straw dust and the like is sucked and discharged by the dust-exhausting fan 14. .

The rocking sorting device 15 is provided with a grain shedding plate 15a, a fixed chaff 15b, a movable chaff 15c, and a sieving line 15d from the front part to the rear part, and the movable sheave 15d has a Glensive 15e at the bottom thereof. The front lower portion is pivotally supported by the pivot shaft 23, and the rear lower portion is pivotally supported by the crank shaft 24, and the rotation of the crank shaft 24 causes the entire rocking / sorting device 15 to rock and the fixed chaff. The structure is such that the paddy etc. is sieved through the gaps between the fins of the movable chaff 15c and the movable chaff 15c, and further passes through the Glensieve 15e to drop the first and second products to the first conveyor 17 and the second conveyor 18. It is.

[0011] The Karato 16 rotates by rotating from the blower ports H1 and H2 to between the fixed chaff 15b and the movable chaff 15c and the Glensieve 15e, through the gap of the chaff fins, or between the crimp net or the Glensieve 15e. Sorting air is sent between the first conveyor 17 and the second conveyor 18. As shown in FIG. 8, an air intake port 25 is provided on the side of the Karako 16 and the air intake amount is adjusted by rotating the air intake shutter 26 with the pivot shaft 26a as a fulcrum to adjust the selection air amount. However, in the present embodiment, the guide plate 27 is pivotally supported on the chain transfer shaft 7a at the starting end of the feed chain 7 in order to interlock the transfer amount of the grain culm in the feed chain and the air flow amount of the Kara tsubo. A rod 28 is connected to the air intake shutter 26 from the guide plate 27. That is, as shown in FIGS. 8 and 9, the guide plate 27 is arranged so as to face between the feed chain 7 and the sandwiching rod 7b, and when the amount of grains to be conveyed is large, the guide plate 27 is moved downward. As a result, the air intake shutter 26 rotates downward, the air intake 25 expands, and the amount of air blown increases, so that a large amount of grains and the like can be sorted. On the other hand, when the number of transported culms is reduced, the guide plate 27 is rotated upward, and the air intake shutter 26 is rotated upward to narrow the air intake 25 to reduce the amount of sorting air and to refine the grains. It is effective when the number of culms is small, such as when traveling, because the efficiency of selection is improved by preventing the discharge of waste. The vertical rotation amount of the air intake shutter 26 can be further linked to the inclination angle of the chaff 15c of the swing selecting device 15.

Next, a gutter opening / closing device for the first conveyor 17 and the second conveyor 18 will be described with reference to FIGS. 2 to 5. A gutter 1 having the same opening / closing mechanism is provided at the bottom of each of the screws 17a and 18a of the first conveyor and the second conveyor. That is, on the side of the gutter 1, the rotary shaft 5 is pivotally supported by the bearing 5a on the combine side plate 23, and the torque spring 2, the spring bearing 3, and the gutter arm 4 are fixedly mounted on the rotary shaft 5 on the same axis. The torque spring 2 and the end of the gutter arm 4 are fixed to the bottom of the gutter 1. A vertically rotating arm 6a that rotates integrally with the rotating shaft 5 is fixed to the end of the rotating shaft 5, and a rotating shaft portion 6c is provided at the tip of the vertically rotating arm 6a. Then, the lock lever 6b is pivotally supported so as to be horizontally rotatable.

The vertical rotating arm 6a, the lock lever 6b, and the rotating shaft portion 6c constitute a lock arm 6, and the lock lever 6b, when the gutter is closed, has a stopper 7 as shown in FIG. Since it is fitted in the groove portion 7a provided on the side portion and is held so as not to rotate up and down, the rotary shaft 5 is fixed and the gutter 1 is locked. When releasing the lock, the lock lever 6b is horizontally rotated to be disengaged from the groove 7a of the stopper 7, and when further opening the trough 1, the lock lever 6b is rotated up and down. When the movable arm 6a is rotated downward, the rotary shaft 5 rotates in the direction in which the gutter 1 is lowered. Since the lock lever 6b can be rotated in the vertical and horizontal directions, it can be opened and closed by avoiding it even if the lock lever 6b is arranged on a side of a conveyor such as a belt or a pulley which is densely packed, and a large lever ratio can be obtained.

Next, the configuration of the inheritance case 29 in the inheritance section from the first conveyor 17 to the fried grain conveyor 19 will be described with reference to FIGS. 10 and 11. The inheritance case 29 is located between the selection processing section C and the grain tank E, and is provided with an opening to the first conveyor 17 and an opening to the fried conveyor 19, and the edge of each conveyor. It sticks to the part. Further, a discharge blade 17b for promoting paddy discharge is attached to the tip of the first conveyor 17 in the inheritance case 29. Bevel gears are fixedly attached to the shaft ends of the first conveyor 17 and the fried conveyor 19 in a bevel gear box 30 in the inheritance case 29 to be meshed with each other.

Since the case 17c outside the sorting device of the first conveyor 17 is conventionally cylindrical as shown in FIG. 19, when the conveyor 17 is removed, the discharge blade 17b hits the flange portion of the case 17c '. The gap was enlarged to avoid this. However, if the gap is increased, the amount of residual particles increases, which causes clogging with the wet material. Therefore, in the present embodiment, as shown in FIGS. 10 and 11, the discharge port lower part of the case 17c of the first conveyor 17 is slanted. Therefore, the clearance between the conveyor 17 and the paddy discharge blade 17b and the case is minimized. As a result, the amount of residual particles in the gap is greatly reduced, and when the clogs are about to be clogged, the paddy pressure escapes in the direction of the slope, so that the wear of the walls of the inheritance case 29 and the paddy discharge vanes 17b is reduced.

Further, the wall portion of the inheritance case 29 is provided with a cleaning port so that the inside of the case can be cleaned. Conventionally, as shown in FIG. 20, the surface including the cleaning port has a cylindrical shape. The case 29 'has a rectangular parallelepiped cleaning port viewed from the front, and the cleaning port lid 38 is fixed by screws when the cover is covered. In this case, the shape of the surface of the inheritance case 29 'including the cleaning port is cylindrical in side view, and the 29'a portion is projected from the bottom of the inheritance case 29'. The residual grain of the paddy had been generated in this area. Therefore, in the present embodiment, as shown in FIGS. 12 to 14, a projecting portion such as 29'a of the related art is deleted, and a bottom case is formed into a sloped side view to form an inheritance case 29. Opening on the side surface of the case 29, the cleaning port lid 32 is configured to horizontally rotate about a rotation shaft 32a, which facilitates opening and closing.

The opening position of the cleaning port is on the side of the starting end of the fried conveyor 19 in the case where the paddy pressure is high, and this portion causes abrasion of the screw portion of the conveyor due to the pressure of the rising paddy. Since it easily occurs, a cleaning port is provided so that parts can be easily replaced around this part. Further, when the cleaning port lid 32 is closed, it is configured so as to be covered so that there is no gap with the wall portion of the inheritance case 29 to prevent paddy leakage. By constructing the inheritance case 29 and the cleaning port lid 32 in this way, the residual grains in the case are blocked, the inheritance of the paddy is facilitated, and the inheritance case 32 is made lightweight and compact. Although the radius of movement cannot be made large, the cleaning port lid 32 can be opened and closed easily, and the efficiency of the cleaning work is improved.

The structure of the discharge port case 17c of the first conveyor 17 and the structure of the cleaning port and the cleaning port lid 32 of the inheritance case 29 are the same as the structure of the discharge port of the second conveyor 18 and the second reduction conveyor. It can be applied to the structure of the inheritance case 39 (shown in FIG. 6) which is the inheritance part to the 20.

[0019]

[Effect of device]

 The present invention has the following effects by being configured as described above. That is, as described in the claims, the opening / closing device for the cleaning port gutter of the paddy conveyor is configured, and the lock arm 6 (upper and lower) is coaxially arranged with respect to the rotating shaft 5 which is the rotating shaft of the arm for opening and closing the gutter. Since the rotating arm 6a and the lock lever 6b) are attached, the structure is simple, the cost is reduced and the assembling is easy, the lock is secure, and the lock arm 6 can be moved vertically and horizontally. Since it rotates, the lever ratio can be made large and the opening of the gutter can be made large even if other members (pulleys for driving the paddy conveyor, etc.) are densely arranged.

[Brief description of drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view of a paddy conveyor gutter opening / closing device.

FIG. 3 is a sectional view taken along line XX in FIG.

FIG. 4 is a side view of the side plate 22 of the selection processing unit as viewed from the outside.

FIG. 5 is a front view of a stopper 7.

FIG. 6 is a side sectional view of a threshing section B and a sorting processing section C.

FIG. 7: Threshing section B, sorting section C, and Glen tank E
FIG.

FIG. 8 is a side view showing the interlocking structure of the air intake shutter 26 and the guide plate 27 of Karako.

9 is a view on arrow W in FIG.

FIG. 10 is a front sectional view showing a discharge port of the first conveyor 17.

FIG. 11 is likewise a side view of the outlet.

12 is a front view showing the shape of a cleaning port lid 32 in the inheritance case 29. FIG.

FIG. 13 is a view from the arrow Y direction in FIG.

FIG. 14 is a sectional view taken along line ZZ in FIG.

FIG. 15 is a perspective view of a cleaning port lid 32.

16 is a schematic side view of a gutter opening / closing device using a conventional torque spring 33. FIG.

FIG. 17 is a schematic side view of the gutter opening / closing device using the link mechanism.

FIG. 18 is a perspective view of a shutter pull-out type.

FIG. 19 is a front cross-sectional view showing the shape of the outlet of the most conventional conveyor and the state of spline fitting.

FIG. 20 shows a conventional inheritance case 29 ′ and a cleaning port lid 38.
It is a front view which shows the shape of.

FIG. 21 is a side view of the same.

[Explanation of symbols]

 C Sorting processing unit 1 Gutter 2 Torque spring 3 Spring receiver 4 Gutter arm 5 Rotation shaft 5a Bearing 6 Lock arm 6a Vertical rotation arm 6b Lock lever 6c Rotation shaft 7 Stopper

Claims (1)

[Scope of utility model registration request] 1. A gutter for receiving the bottom of a paddy conveyer disposed below a combine processing section of the combine, wherein a rotary shaft is provided in parallel with the gutter, and a vertical rotating arm is fixed to an end of the rotary shaft to rotate the vertical. A lock lever, which is rotatable in the direction of the axis of rotation, is pivotally supported at the tip of the arm so as to be lockable to the machine body, a gutter is fixed to the rotating shaft, and a torque spring for urging the gutter upward is provided. A gutter opening / closing device for a paddy conveyor characterized in that the gutter can be released downward.