JP2514488Y2 - Blocking plate driving device of swing sorting device in thresher - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a closing plate driving device of a swinging sorting device in a threshing machine mounted on a combine.

(B) Prior art Conventionally, according to Japanese Utility Model Laid-Open No. 62-107639, a filtering / sorting member having a mesh smaller than that of the sorting net is provided below the sorting net of the rocking sorting body, and is integrally provided with the filtering / sorting member. A pinion that is linked to a motor is meshed with the rack, and the motor is driven to move the above-mentioned filtration / screening member back and forth along the screening network to adjust the filtration rate (leakage area) of the screening network. Swing sorting devices are already known.

(C) Problems to be solved by the invention Since the known swing selecting device has the motor suspended from the lower surface of the thin-walled Glen pan, the support of the motor is weak and the driving reaction force and swing selecting body The swinging motion of the motor causes the motor to largely swing, and the rack is pushed by the pinion during driving of the pinion to cause a position shift, which causes a problem that the leakage selection member does not move back and forth smoothly.

(D) Means for Solving the Problems In the present invention, a blocking plate 27 is provided on the starting end side of the sorting net 19 of the swing sorting body 12, and a rack in the front-rear direction provided integrally with the blocking plate 27. The pinion 35, which is interlocked with the motor 32, is meshed with the motor 31. By driving the motor 32, the blocking plate 27 is moved back and forth along the sorting net 19 so that the leakage area of the sorting net 19 can be expanded or contracted. In the thresher, a mounting plate 30 is connected and fixed between the left and right side walls 12a, 12a of the rocking sorting body 12, and the mounting plate 3
The motor 32 is attached to 0 and the rack 31
By fixing the guide member 36 that abuts on the side opposite to the side where the pinion 35 engages and slides and guides the rack 31 to the mounting plate 30, the plugging plate can smoothly move back and forth. The above problems were solved.

(E) Action The objects to be sorted that have been threshed in the handling chamber 2 and have fallen into the rocking sorting body 12 are transferred to the screening net 19 by the corrugated lower transfer plate 17 of the rocking sorting body 12 and screened. At the same time, the wind is selected by the selection wind from the blower fan 25. In this screen selection and air selection process, the closing plate 27 is adjusted forward and backward by a drive device according to the amount or type of the object to be selected, the dryness and the like. By firmly mounting and supporting the motor 32 on the mounting plate 30 that is rigidly framed by connecting and fixing between the side walls 12a, 12a, the motor 32 is driven by the driving reaction force and the rocking motion of the rocking sorting body 12. The guide member 36 fixed to the mounting plate 30 while suppressing swinging
By the pinion of the rack 31 integrated with the closing plate 27
Slide and guide the side opposite to the side where 35 is meshed.

Therefore, the blocking plate 27 is prevented from being biased in the left-right direction during the forward-backward movement as much as possible, and can be smoothly moved forward and backward.

(F) Embodiments An embodiment of the present invention will be described with reference to the drawings, in which reference numeral 1 is a handling cylinder mounted axially in a handling room 2 and provided with a feed chain 3 and a sandwiching rail 4 along the outside of the handling mouth. A processing cylinder 7 having a transfer spiral 6 in the front part is mounted on the processing chamber 5 on the opposite side of the handling port 2 and rearward from the rear of the handling chamber 2, and is mounted on the handling port side behind the handling chamber 2. Is provided with a suction fan 8.

In addition, a swing sorting body 12 is provided at a portion extending from below the receiving net 10 of the handling chamber 2 to the dust sorting chamber 11 in two pairs of front and rear swing arms 9.
It is installed so as to swing back and forth by a, 9a and 9b, 9b. The swing sorting body 12 includes an upper sorting unit 13 and a lower selecting unit 15.
The upper-stage sorting section 13 is composed of a corrugated upper transfer plate 16 and a sieve sorting section 16a composed of a number of fins that are continuously provided at a rear portion of the corrugated upper transport plate 16, and the lower-stage sorting section 15 has a corrugated shape. Lower transfer plate 17 and the most gutter that is connected to the rear end
It is composed of a sorting net 19 facing the top 18 and the first flow plate 20, and is composed of a large number of Straw racks at the end of the lower sorting part 15, and a second sieve sorting facing the second gutter 21. Part 22
Is provided.

A blower fan 23 is provided below the starting end of the upper-stage sorting section 13 so that the discharge port is directed to the sieve-sorting section of the upper-stage sorting section 13, and a cross-flow fan is provided at a position close to the front part of the first gutter 18. It is configured with a blower fan 25 for selecting the best wind whose discharge port is directed to the sorting net 19, and the first gutter 18 and the second gutter 21 are provided.
A second blower fan 26, which is a cross-flow fan, is provided between the discharge port and the second sieve selection unit 22.

Further, the corrugated lower transfer plate 17 is provided at the starting end side of the sorting net 19.
A closing plate 27 made of a corrugated plate superposed on the lower surface of the above is supported by guide rails 28, 28 fixed to the side plates 12a. That is, the leakage area of the screening net 19 is expanded or contracted by moving the blocking plate 27 forward and backward along the upper surface of the screening net 19, and when the blocking plate 27 is moved to the frontmost side, It is housed in the lower surface of the lower die transfer plate 17 and the leaking area of the sorting net 19 is maximized. By moving, the leakage area of the sorting net 19 is reduced to the maximum. Further, the front end portion (starting end portion) of the corrugated lower transfer plate 17 is provided with the front blower fan 23 and the intermediate blower fan.
It is located between 25 and the side plates 12a, 12 at the bottom of this part.
The mounting plate 30 is connected and fixed between a and the rack 31 is attached to the lower end of the connecting plate 29 that is fixed and hung down on the intermediate lower surface of the left and right width of the closing plate 27.
The rack 31 is in sliding contact with the upper surface of the mounting plate 30. On the other hand, a motor 32 is mounted on the mounting plate 30, and a speed reducer 33 is linked to the motor 32.
The pinion 35 attached to the output shaft of (1) is meshed with the rack (31), and the closing plate (27) is moved back and forth by driving the motor (32). A guide member 36 is screwed to the mounting plate 30, and the guide member 36 abuts on the side of the rack 31 opposite to the side on which the pinion 35 is meshed.
Is guided so that it will not slide laterally, and slides.

Further, the front end of the wire 37, which connects the rear end of the connecting plate 29, is connected to the front end of a display plate 39 made of steel tape mounted on the operation panel 38 provided in the operation unit, and the base of the display plate 39 is , Is wound in a corner of the operation panel 38 in a state in which the measure type winding device 40 is wound and urged, and the display marks on the display plate 39 are "in", "wheat", and "wetting material". It is printed with a mark on it, and in those display marks, "I"
Is the state in which the plugging plate 27 is most retracted and stored on the lower surface of the corrugated lower transfer plate 17, "barley" is in the state advanced to the position a, and "wetting material" is in the intermediate position between them. Operation board
It is arranged to face a see-through window 41 formed in 38.

The fan case 25a of the intermediate blower fan 25 is arranged so that the discharged sorting air is directed toward the start end of the sorting net 19 as well.
Since it is invading the movement path of the rack 31 as shown in the figure,
The portion is cut open to form a groove 42. b is a rack
The maximum movement position of 31 is shown.

In the threshing machine described above, the grain culm that has been cut and conveyed by the combine pretreatment device conveys the root part of the grain between the feed chain 3 and the clamping rail 4, and conveys from the supply port to the handling chamber 2 on the ear side.
Inserted into the container and threshed by the handling cylinder 1, long straws and cuttings during threshing are transferred to the processing chamber 5 and processed by the processing cylinder 7, and grains and small straw waste are swung from the net 10. It drops into the upper sorting section 13 of the sorting body 12, and the sieve sorting section from the corrugated upper transfer plate 16
It moves to 16a and is sieve-sorted, and it is also wind-selected by the sorting wind from the blower fan 23.

At that time, the wind direction plate provided on the upper end of the corrugated lower transfer plate 17
At 43, the sorting wind is converted obliquely upward and is prevented from being blown out onto the sorting net 19.

The objects to be sorted that have fallen on the corrugated lower transfer plate 17 from the sieve sorting unit 16a are moved to the sorting net 19 and are sieve-sorted, and are wind-selected by the sorting wind from the blower fan 25, and the leaked grains are After receiving the flow plate selection by the first flow plate 20, it drops into the first trough 18 and is carried out of the machine by the first transfer spiral.

The second object, the straw waste, and the like, which are ejected rearward from the ends of the sorting net 19 and the sieve sorting unit 16a, are sieve-sorted by the second sieve sorting unit 22 and are selected by the sorting wind from the second blowing fan 26. The leaked second product is returned to the transfer start end side of the rocking sorting body 12 by the second reducing and lifting spiral cylinder provided on the side by the transfer spiral in the second receiving gutter 21 or the second reducing thrower. And re-sort.

At that time, the drive devices such as the motor 32 and the speed reducer 33 are
Since it is arranged between the closing plate 27 and the mounting plate 30, in this embodiment, of course, when the transfer sorting path of the swing sorting body 12 is not one in upper and lower stages but one stage, The blower fan that blows air toward the sorting net 19 is in front of the transfer plate (at the supply port side).
, The drive device does not project into the selection air passage, and the selection air is not weakened or turbulent flow is generated at that portion, so that the air selection performance is not deteriorated.

When the rice culm to be cut and threshed stands upright in the field and is not wet, the motor 32 causes the pinion 35 to rotate counterclockwise in plan view via the speed reducer 33, and the closing plate 27 is closed. The rack 31 is drawn into the lower surface of the corrugated lower transfer plate 17 to widen the leakage area of the sorting net 19. At that time,
Since the connecting plate 29, which is integrated with the rack 31 and the closing plate 27, moves rearward, the wire 37 relaxes, the display plate 39 is rolled up, and the mark "ine" attached to the display plate 39 appears in the transparent window 41.

When the grain culm to be cut and threshed is wheat, the motor
The rack 31 is moved rearward by 32, and the closing plate 27 is advanced rearward to close the base side of the sorting net 19, and accordingly, the wire 37 pulls out the display plate 39, and the mark `` wheat '' attached to it. It is shown in the transparent window 41.

In the case of rice with wet culms to be cut and threshed, the closing plate 27 is adjusted forward and backward as shown in the transparent window 41 between the marks "ine" and "wheat", depending on the degree of wetting. It is desirable to finely adjust the closing plate 27.

When the closing plate 27 moves back and forth, the motor
32 is attached to the mounting plate 30 which is firmly framed by connecting and fixing between the left and right side walls 12a, 12a of the swing selecting body 12,
Since the motor 32 is firmly supported, it is possible to prevent the motor 32 from swinging due to its driving reaction force or the swinging motion of the swing selecting body 12. Further, by the guide member 36 fixed to the mounting plate 30, the rack 31 integrated with the plugging plate 27 receives and slides on the side opposite to the side on which the pinion 35 is meshed, thereby slidingly guiding the rack 31. The pinion 35 is prevented from being displaced laterally.
And the rack 31 are securely engaged with each other, and the closing plate 27
Is well prevented from being twisted in the left-right direction during movement.

In addition, a connecting plate 29 and a rack which are passive parts of the closing plate 27.
If 31 etc. are provided almost in the center of the width of the closing plate 27,
When moving the 27 forwards and backwards, it is possible to further prevent the lateral deviation.

7 to 8 show a device for attaching and detaching the receiving net 10,
The receiving net 10 extends from the lower part of the handling chamber 2 to the side surface on the back side, and the middle portion can be bent freely by a fulcrum pin 45. The pins 47 protruding from the edge plate 46 on the handling port side are handling ports. The frame plate 49 to which the plate 48a and the straw cutting sickle 48 are attached is fitted, and the holes 51, ... drilled in the upper bracket 50 are fitted to the pins 53 ,. Although not shown, both sides of the receiving net 10 are supported by guide rails, and the lower part of the partition plate 55 fixed to the inner peripheral surface on the far side is curved along the net surface and is on the lower side. It extends on the net.

When the receiving net 10 is pulled out, the cylinder cover 56
Open, the lock lever 54 is released, and the receiving net 10 is pulled out upward along the guide rail. At that time, since the partition plate 55 of the net portion on the back side overlaps with the inner peripheral surface of the net portion on the lower side, the net portion on the back side does not rotate inward, and the circular shape is maintained. When the upper end of the net is pulled out and it is about to come into contact with the handle plate 48a, the net portion on the back side is folded back to the opposite side as shown in FIG. Can be extracted.

In addition, when attaching, conversely, the lower half net portion is inserted in a two-fold state, and then the inner half net portion is returned and rotated to be further inserted, so that it can be easily attached.

(G) Effect of the Invention The present invention has the following effects due to the above-described configuration.

Even if the state or type of the grain culm to be cut and threshed is changed, by moving the closing plate 27 forward and backward along the sorting net 19 so as to adapt to it, and adjusting the leakage area of the sorting net 19, it is always possible to adjust. You can select well.

When the blocking plate 27 moves back and forth, the driving motor 32 is attached to the left and right side walls 12a, 12a of the swing selecting body 12 and fixed to the mounting plate 30 which is firmly framed. Since it is strongly supported by the guide member 36 fixed to the mounting plate 30, the motor 32 is prevented from swinging due to its driving reaction force and the swinging motion of the swing selecting body 12 as much as possible. A position shift of the rack 31 is prevented by receiving and slidingly guiding the side of the rack 31 integral with the plugging plate 27 opposite to the side on which the pinion 35 meshes. Therefore, the pinion 35 and the rack 31 can be reliably meshed and transmitted, and further, the clogging plate 27 is prevented from being biased in the left-right direction during movement, and the clogging plate 27 is smoothly moved forward and backward. be able to.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a longitudinal sectional view of a thresher, Fig. 2 is a longitudinal sectional view of essential parts, Fig. 3 is a plan view of the same as above, and Fig. 4 is a rocking view. Fig. 5 is a cross-sectional view of the moving sorter, Fig. 5 is a vertical sectional side view of the operation panel, Fig. 6 is a front view of the same as above, Fig. 7 is a cross-sectional view of the threshing part, and Fig. 8 shows a state in which the catch net is pulled out. FIG. 9 is a cross sectional view, FIG. 9 is an exploded perspective view of the connecting portion, and FIG. 10 is a front view of the same. 2 …… Handling room, 12 …… Swing sorting body, 12a …… Side wall, 19 ……
Sorting net, 27 …… blocking plate, 30 …… mounting plate, 31 …… rack, 32 …… motor, 35 …… pinion, 36 …… guide member

Continuation of front page (56) References Shown 62-125440 (JP, U) Shown 62-107639 (JP, U) Shown 57-54245 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A blocking plate 27 is provided on the starting end side of a sorting net 19 of a swing sorting body 12, and a rack 32 in the front-rear direction provided integrally with the blocking plate 27 is linked to a motor 32. In the thresher capable of engaging the pinion 35 and moving the closing plate 27 forward and backward along the sorting net 19 by driving the motor 32, the leaking area of the sorting net 19 can be expanded and contracted. Attach the mounting plate 30 between the left and right side walls 12a, 12a of the
The motor 32 is attached to 0 and the rack 31
The guide member 36 that abuts on the side opposite to the side where the pinion 35 meshes and guides the rack 31 slidingly is fixed to the mounting plate 30. Block drive device.