JPH0665259B2 - Under-treatment thresher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a pre-treating threshing machine in which a handling cylinder is pivotally supported on a machine wall above a supply port and an outlet.

(B) Conventional technology Conventionally, the handling cylinder is pivotally supported on the machine wall that forms the handling chamber above the supply port and the discharge port, and the swinging sorting body is supported below the receiving net, and outside the handling port. In the under-treatment type threshing machine provided with a grain culm carrier composed of a feed chain and a pinching rail, the machine wall and the top plate following it are divided into front and rear at the back side of the supply port and the culm port, It has already been known from Japanese Utility Model Application Laid-Open No. 52-25967 that the split portions of the top plate are hinged so that both side walls of the handling chamber and the top plate and the handling barrel are integrally opened and closed.

(C) Problems to be Solved by the Invention In the known under-treating threshing machine, the feed chain is attached to the machine frame below the handling mouth, and the pinch rail is attached to the opening / closing portion above the handling mouth. Therefore, when the handling cylinder was rotated upward together with the top plate to maintain and inspect the handling room, there was a feed chain with a long conveyance protrusion protruding upward outside the lower edge of the handling mouth. The maintenance and inspection work, the rocking sorting body maintenance work, and the work for taking in and out the receiving net are obstacles and dangerous.

(D) Means for Solving the Problems The present invention is such that the handling cylinder is pivotally supported on the machine wall forming the handling chamber above the supply port and the discharge port, and the swing sorting is performed below the removable receiving net. A lower handling type threshing machine that supports a body and has a grain culm carrier consisting of a feed chain and a picking rail on the outside of the handling port, the machine wall being behind the supply port and the drainage port. Also, the top plate that follows it is divided into front and back, and the divided portions of the top plate are hinged so that both side walls of the handling chamber and the top plate and the handling cylinder are integrally opened and closed, and the feed chain is handled. The above problem was solved by mounting it on the opening and closing part of the mouth and disposing the pinching rail outside the lower edge of the mouth.

(E) Action When inspecting and servicing the swing room or the rocking sorter in the handling room, the top plate moves when the machine wall and top plate that make up the handling room are lifted up by disconnecting the connecting parts of the machine wall. The part overlaps with the fixed part following the dividing part, and the handling cylinder rises together with the side wall of the handling room to move out of the handling room, exposing the handling room's receiving net, and Any part can be easily serviced.

At that time, since a long feed chain with many transport protrusions protruding around is retracted upward together with the top plate and the handling cylinder, during the inspection and maintenance work, the feed chain itself hinders the above work, Hands and clothes do not touch the transport protrusions.

In addition, the mesh of the receiving net does not get caught on the many transport projections of the feed chain when the receiving net is put in and out to inspect and maintain the swinging sorting body below the handling room. Even if you bend your upper body downwards to extend it downwards,
The body is supported by a sandwiching rail that has a smooth surface,
In addition to being safe, it is possible to freely perform a variety of work while easily moving laterally in this posture.

(F) Example A threshing machine mounted on the harvester shown in the drawings as an example of the present invention will be described. 1 is a threshing machine mounted on the machine base 3 of the traveling device 2 and is provided on the supply port 4 side. Is the supply table 5
, The grain culm carrier 6 is configured by attaching the feed chain 6a to the upper part of the handling opening 7 and the pinching rail 6b to the lower part.
On the discharge side of the culm outlet 8, there is provided a straw discharge carrier 9 in series with the grain culm carrier 6, and at the rear of the thresher 1 an engine 10, a control unit 11 and an upper end of a fried cylinder 12 are provided. Dispensing hopper 12a
And a pedestal 12b facing directly below.

Further, the handling chamber of the threshing machine 1 is formed by machine walls 14 and 14 above the supply port 4 and the discharge port 8, a removable receiving net 15, a top plate 13 and the like as in the conventional under-treating type threshing machine. The handling barrel 16 is supported on the machine walls 14, 14 by a handling barrel shaft 17, and
A space extending from the lower part of 5 to the exhaust chamber 18 is constituted by a cross-flow fan 19 provided below the supply port 4 and a suction fan 20 provided at the upper end of the rear end of the exhaust chamber to form a selection air passage, and the receiving net 15 In the lower part of the oscillating sorting body 21, which swings in the direction orthogonal to the handling cylinder axis 17 and which is composed of a corrugated transfer plate and a sorting net 21a, is installed.
The first gutter 22 and the first transfer spiral 23 are provided below the second net, and the second gutter 24 and the second transfer spiral 25 are provided in the lower rear part of the sorting net 21a, and the second transfer spiral 25 is transferred. The second thrower at the end
The 26 outlets communicate with the upper rear part of the handling room.

Next, the transmission device will be described.
The shaft of 19 is driven by the engine 10, and the pulley 27 attached to the shaft of the cross flow fan 19 and the counter pulleys 28, 29 are attached.
A belt 32 is wound around the handling body pulley 30 and the second transfer spiral pulley 31, the counter pulley 28 drives the first transfer pulley 33 and the swing pulley 34 by the belt 35, and the feed chain 6a is a worm. Worm gear and shaft
Driven via 36, the pulley 20a of the suction fan 20
Is driven by a counter pulley 29 via a belt 29a.

The machine walls 14 and 14 and the top plate 13 are divided into front and rear portions at positions corresponding to the inner end portions of the supply port 4 and the discharge port 8, and the division portions of the top plate 13 are butterfly plates 37 and 37. Openable and closable, or removably connected with a receiver and wing nut, etc.
The split parts of 14, 14 are detachably screwed with a socket 38 ... And a wing bolt 39, 39.

In the threshing machine of the above-mentioned harvester, when the ears are inserted into the supply port 4 while holding the grain culm placed on the supply base 5, and the stock side is supplied to the starting end of the grain culm carrier 6 and conveyed, 16 threshing process, the grains and small straws in the threshing leaks from the receiving net 15 onto the transfer plate of the rocking sorting body 21, and the above-mentioned kernels leak from the sorting net 21a of the rocking sorting body 21. The second one of the nets thrown from the end of the selection net 21a and selected by wind is dropped into the second trough 24 as it is lowered and is wind-selected into the first trough 22. It is transferred to No. 2 Thrower 26, and No. 2 Thrower 26 returns it to the handling room.

In addition, the straw dust and the dust discharged from the dust feed port 24a are wind-selected and sucked out of the machine by the suction fan 20.

Thus, when the handling room is clogged, or when performing maintenance such as replacing the straw cutting sickle, the supply table 5 is rotated downward to be in a folded state, and then the butterfly bolt 39 is used. , 39
And remove the belt 32 from the handle barrel pulley 30,
When the feed chain 6a that is integral with the hanging portion of the top plate 13 is rotated upward, the top plate 13, the machine walls 14 and 14 and the handling barrel 16 are integrated to rotate around the butterfly plates 37 and 37. Move and fourth
As shown in the figure, ride on the fixed top plate 13a near the suction fan 20 and the receiving net 15 is opened so that the entire surface is exposed.In this state, the clogging is removed and the straw cutting sickle is replaced. .

At that time, since the feed chain 6a which is long and has a large number of transport protrusions is largely retracted upward together with the top plate and the handling cylinder 16, the feed chain 6a does not hinder inspection and maintenance work, and The transport protrusion does not get stuck in a hand or clothes.

Further, in order to inspect and maintain the swing sorting body 21, when the receiving net 15 is taken in and out while the top plate of the handling room and the handling body are rotated upward and retracted, the outside of the lower edge of the handling port 7 Smooth gripping rails
Since the feed chain 6b having a large number of transport protrusions is retracted upwards only by the presence of 6b, it is of course safe, and the mesh of the receiving net 15 does not get caught on the transport protrusions. When inspecting and servicing the rocking sorting body 21 below the handling room, the body is pressed against a pinch rail that serves as a safety fence, and the upper half of the body is in a large leaning position. Therefore, even if it is moved to the left or right for maintenance, unlike the case where the feed chain is provided at the bottom, the conveyance protrusion does not get caught on the clothes, and the maintenance work can be performed easily and quickly.

Also, after the maintenance and inspection of the handling room etc. is completed,
When 4 etc. are rotated downward, the divided parts of the machine walls 14,14 are joined to the part that is integral with the machine frame, and the receivers 38,38 on the same side are superposed respectively, so screw in the butterfly bolts 39,39. Tighten.

FIG. 5 shows another example of the transmission mechanism and the hinges 37, 37. The V groove of the counter pulley 29 has three steps, the upper end of the belt 32 is hooked on the counter pulley 29, and the counter pulley is The belt 40 is hung on 29 and the handle barrel pulley 30 to drive the handle barrel 16, and the belt 40 is removed when performing maintenance and inspection of the handle chamber.

FIG. 6 shows the counter pulley in the second embodiment.
The counter shaft 29b of 29 is supported on the divided portion of the top plate 13, and since the counter shaft 29b also serves as the fulcrum shaft of the hinges 37, 37, the handling barrel 16 and the machine wall 14 are ,14
It is not necessary to remove or hang the belt 40 when rotating such as ascending.

FIG. 7 shows another example of the engagement / disengagement device, and the rotation mechanism and transmission mechanism of the machine walls 14, 14 and the like are the same as the example shown in FIG. 6 and fixed to the machine walls 14, 14. Front and rear support plates 4 whose lower ends are bent forward or backward on both sides of the joint with the machine walls 14a, 14a
1, 42 are fixed, the bent portion of the rear support plate 42 is configured as the inclined portion 42a, and the folded portions of the front support plate 41 overlap the inclined portion 42a with the machine walls 14, 14 closed. The locking arm 43 is protruded, and an arm 44 having a bent portion whose lower end engages with the lower surface of the locking arm 43 on the inclined portion 42a is pivotally supported by a fulcrum shaft 45.
An operating lever 46 is provided on the boss of 44, and the bent portion of the arm 44 is at a rotation locus R ₁ that engages with the intermediate point A via the tip of the locking arm 43 as shown by the solid line in FIG. Rotate to the intermediate point A
Rotates about the counter shaft 29b along a rotation locus R ₂ .

Therefore, it can be engaged and disengaged by an extremely simple operation of tilting the operation lever 46, and once locked, the turning radius of the bent portion of the arm 44 is smaller than the turning radius of the locking arm 43, so that the handling cylinder It can be firmly locked even if the threshing load is applied to 16.

FIG. 8 shows a support device for the stock guide 47,
A mounting arm 48 that supports both ends of the stock guide 47 so as to be adjustable up and down is bent at its both sides toward the outside of the thresher 1,
Since this bent portion is screwed to the raised ribs of the machine walls 14 and 14, the machine walls 14 and 14 and the body 1
When the 6 or the like is rotated upward, the mounting arm 48 can be grasped and easily lifted.

FIG. 9 shows an awning for a worker, which includes a supply port 4
A support pipe 49 is fixedly erected on the machine wall 14 on the side, and the lower part of the support column 50a of the worker's shade 50 is vertically inserted into the upper part of the support pipe 49 and screwed with a fastening bolt 51. A handle 52 for fixing the handle and opening the upper part of the handling room is fixed.

(G) Effect of the Invention Since the present invention is configured as described above, the handling cylinder 16 pivotally supported by the machine walls 14, 14 above the supply port 4 and the discharge port 8 is rotated upward to receive the net 15. In the open state with the exposed part, it is possible to easily remove clogging in the handling room or perform inspection and maintenance of various equipment without any obstacles, but handle the feed chain 6a with a large number of transport protrusions. It will be retracted upward together with the torso 16 etc., which may hinder the maintenance work during the inspection and maintenance work, like the long feed chain 6a provided along the outer lower edge of the handle. In addition, it is possible to perform the inspection and maintenance work safely and with high efficiency without a large number of the transport protrusions being stuck into a hand or clothes.

Further, when the handling cylinder 16 and the top plate are rotated upward in order to inspect and maintain the swing sorting body 21, the feed chain 6a is also retracted upward, and the outside of the lower edge of the handling opening 7 is smooth. Since only the sandwiching rail 6b remains, when pulling out or pushing in the receiving net 15 to set it, the mesh of the receiving net 15 does not get caught on the transport projection of the feed chain 6a, so it is safe and quick. Can be put in and taken out.

Further, when the rocking sorting body 21 is inspected and maintained with the receiving net 15 pulled out, even if the upper half of the body is greatly leaned out and the body is pressed against the pinching rail 6b, the pinching rail 6b is
Unlike the feed chain 6a, its transportation projection does not pierce clothes, does not cause injury or tears in work clothes, and uses the pinching rail 6b as a safety fence to move the body freely back and forth, and to the left and right while shaking. The dynamic sorting body (21) can be easily, quickly and safely maintained over a wide area in the length direction and the width direction.

[Brief description of drawings]

1 shows a side view of a harvester, FIG. 2 is a plan view of the same as above, FIG. 3 is a side view of a thresher, and FIG. 4 is a handling of the thresher. FIG. 5 is a perspective view of a threshing machine having another transmission device, FIG. 5 is a side view of a threshing machine having another transmission device, and FIG. FIG. 9 is a side view of a thresher equipped with a locking device, FIG. 9 is a perspective view of a stock guide support device, FIG. 9 (a) is a side view of a shade support part, and (b) is a perspective view of the same. 4 ... Supply port, 8 ... Exhaust port 13 ... Top plate, 14 ... Machine wall 16 ... Handling barrel, 37 ... Hinge 38 ... Receiving

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Keiji Ota 667 Isuyacho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Inside Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A handling cylinder 16 is pivotally supported on machine walls 14, 14 which form a handling chamber above the supply port 4 and a discharge port 8, and a swing sorting body 21 is supported below a removable receiving net. However, it is a lower handling type thresher equipped with a grain culm carrier 6 consisting of a feed chain 6a and a sandwiching rail 6b on the outside of the throat 7, and at the back side of the supply port 4 and the culm 8 The machine walls 14, 14 and the top plate 13 following it are divided into front and rear, and the divided portions of the top plate 13 are hinged so that both side walls of the handling room and the top plate 13 and the handling barrel 16 are integrally opened and closed. The lower handling type threshing machine is characterized in that the feed chain 6a is attached to an upper opening / closing portion of the handling opening 7, and the pinching rail 6b is arranged outside the lower edge of the handling opening.