JPH0538597Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a processing device for a threshing machine equipped with a handling cylinder and a processing cylinder.

(b) Prior Art Conventionally, it is already known from Japanese Utility Model Publication No. 53-27893, etc. to provide a processing section with a processing cylinder inside on the side of the processing chamber.

(c) Problems to be solved by the invention Since the processing section of the known threshing machine was covered with a case that was integrated with the machine wall forming the handling room, it was difficult to maintain and inspect the processing section, and it was difficult to maintain and inspect the processing section. Even if they were installed, it was difficult to carry out sufficient maintenance work.

(d) Means for solving the problems The present invention provides a threshing machine that is equipped with a handling cylinder and a processing cylinder, in which the processing cylinder is pivotally supported on a case that also serves as a side wall.
The lower part of the case is pivoted to the lower frame of the processing section so that it can rotate with the processing cylinder attached, and the processing cylinder receiving net is connected to the lower frame, the upper frame of the processing section, and the case. By sandwiching and detaching the upper and lower parts of the processing cylinder, the processing cylinder can be rotated and opened together with its case, and the processing cylinder receiving net can be easily attached and detached. Solved the above problems.

(E) Function Grains and small straw waste generated during threshing by the handling barrel fall through the receiving net onto the oscillating sorter and are sorted out, similar to a normal threshing machine, and are separated into relatively large straw. Exhaust materials such as scraps and ear cuts are sent to a processing section and processed.

When performing maintenance and inspection on the processing section, when the case, which also serves as a side wall, is rotated outward, the processing cylinder also rotates together with the case, allowing the processing section to be opened almost entirely. Perform maintenance and inspection.

Further, in this state, the clamping attachment of the processing trunk receiving net is released, so that the processing trunk receiving net can be easily attached and detached for maintenance.

(F) Embodiment An embodiment of the present invention will be explained about a threshing machine for a combine harvester shown in the drawings. 1 is a handling barrel that is pivoted in a handling chamber 2 with its front part tilted downward; A feed chain 4 and a pinch rail 5 are arranged along the suction port 3, and a sorting air path is formed by a blower windmill 6 installed below the supply port 1a and a suction windmill 8 attached to the side wall of the exhaust dust sorting chamber 7. The transfer plate 9a facing the lower surface of the receiving gutter 9, the substantially horizontal or slightly downwardly inclined sorting net 10 which is connected to the rear end and facing the uppermost receiving gutter 10a, and the central flow plate 11 from the top. A swing sorting body 14 made up of a large number of parallel spokes 11a extending toward the flow plate 12a, a corrugated transfer plate 13a facing the second receiving gutter 12, and a stroke rack 13 is swung back and forth. A straw conveying device 15 is provided above the dust sorting chamber 7.

Further, a processing section 18 consisting of a transfer chamber 16, a transfer chamber 19, and a processing chamber 17 following the transfer chamber 16 is provided near the bottom of the rear half of the processing chamber 2.
The processing shaft 20, which is supported within the interior and whose front end protrudes from the front wall of the transfer chamber 16, is connected to an input shaft 2b that is supported on the entrance side plate 2a of the processing chamber 2 via a universal joint 20a.
The input shaft 2b is driven by a sprocket 21a attached to the handling barrel shaft 21 via a chain in a transmission case housing them, and the universal joint 20a is connected to the inner and outer shafts by spline fitting. It is equipped with a connecting rod 20b configured to be extendable and retractable, a transfer spiral 22 is fixed in the transfer chamber 16 of the processing shaft 20, a processing cylinder 23 having processing teeth 24 is installed in the processing chamber 17, and the The transfer chamber 16 is communicated with the handling chamber 2 through a dust inlet 25, and the inside from the lower part of the processing chamber 17 is connected to a swing sorting body 14 as shown in FIG.
Half protrudes upward and is covered with a processing body receiving net 26,
A discharge port 27 provided inside the rear end portion opens toward the suction port of the suction windmill 8, and guide plates 29, 29 are provided at the front and rear portions between them.

Further, the transfer chamber 19 has a conical cylinder 22 connecting the inner periphery of the terminal end of the transfer spiral 22 and the starting end of the processing cylinder 23.
The conical cylinder 22a has two blades 34 protruding from its outer peripheral surface that follow the transfer spiral 22 (two leads) and have lead angles in the same direction.

The outside of the transfer chamber 16 and the processing chamber 17 is covered with a case 31 that follows the outer shapes of the transfer spiral 22 and the processing cylinder 23 and also serves as a side wall, and the case 31 is constructed separately from the machine frame. Bearing holders 33, 3 are pivotally supported on the frame 100 at the front and rear of the lower part by fulcrum shafts 28, 28 so as to be openable and closable, and support the front and rear parts of the processing shaft 20.
3 is composed of a disk consisting of a small diameter part 33a and a large diameter part 33b, and a circumferential groove 33c is bored at the base of the small diameter part 33a by a parting tool, and the large diameter part 33b is connected to the processing cylinder 23. The front and rear bearing holders 33,
33 has the same diameter, and the front bearing holder 33 fits its circumferential groove 33c into the front wall 17a of the case 31, which constitutes the front wall of the processing chamber 17, and the partition plate 46 fixed to the machine frame, and transfers. A recess is fitted to the outer periphery of a disc fixed to the starting end of the spiral 22, and the outer periphery of the disc is screwed onto the front wall 17a of the case 31 with bolts, and the rear bearing holder 33 is attached to the inner periphery of the processing cylinder 23. The outer circumferential portion is screwed to the rear wall 17b with a bolt through a washer.

Further, the case 31 is formed in a half octagonal shape, and its lower part is bent approximately horizontally, so that when the case 31 is closed, the lower frame 26a of the processing barrel receiving net 26 is bent.
As shown in FIG. 8, the plate 40 which is pressed against the frame 100 and welded onto the lower frame 26a overlaps the above-mentioned bent part, and at this time, the notch 26a formed in the lower frame 26a ' is fitted into a pin 104 protruding from the frame 100.

Furthermore, the upper approximately horizontal bent part is the processing body receiving net 2.
As shown in FIG. 7, the upper frame 26b of No. 6 and a plate 41 having an L-shaped cross section integral therewith are held in pressure contact with the frame 101. 104 , is pivotally supported on the upper part of the case 31 , and has a lever 42 .
It engages with a receiving pin 44 welded to 1.

Furthermore, hooks 43, 43 each having a lever 42 are pivotally supported on the front wall 17a and rear wall 17a of the case 31, respectively.
Reference numeral 43 denotes a bracket 101 hanging from the frame 101 above as shown in FIGS. 2b and 4b.
The rear hook 43 engages with and disengages from the receiving pin 44 protruding from the machine wall.

Reference numeral 35 denotes a guide plate that protrudes from the inner peripheral surface of the front part of the processing chamber 17 and is provided along the outer periphery of the rotation locus of the blade 34, which guides the waste material forcibly transferred by the blade 34 to the processing chamber 17. It has a lead angle that guides it towards the target.

The receiving net 9 is divided into a lower part and a back side, and a plurality of pins 57, 57 are protruded from the lower part of the net frame 9c of the receiving net 9 on the back side. The pins 57, 57 are loosely fitted into holes drilled in a U-shaped receiver 58 so that they can be inserted and removed freely, and the upper part of the mesh frame 9c is overlapped with the frame 103 as shown in FIG. 103, and is removably locked by a locking plate 60 having a lever 59.

In addition, the pins 57, 57 protruding from the net frame 9b of the lower receiving net 9 are inserted into the holes on the lower side of the U-shaped receiving plate 58, and the mounting frame of the straw-cutting sickle 61 is fixed on the front side. The hook 62 with a lever 63, which is pivoted to the mesh frame 9b, is engaged with a receiving pin 64 welded to the frame 105, so that the hook 62 is removably locked.

When the above-mentioned threshing machine is mounted on a combine harvester platform for reaping and threshing, the grain culm conveying device is used to
The grain culms supplied to the feed chain 4 and the pinching rail 5 are threshed by the handling drum 1, and the grains and small straw waste from the generated threshed grains fall from the receiving net 9 onto the oscillating sorter 14. The sorting net 10 and the spokes 11a are transferred while being subjected to wind selection treatment in the process.
first sorted by the stroke rack 13
The remaining straw waste and discharge port 27
The straw waste is discharged from the dust outlet 37 and the suction windmill 8 to the outside of the machine.

Further, waste materials such as ear cuts and long straw generated in the handling chamber 2 enter the transfer chamber 16 through the dust inlet 25 and are transferred to the rear processing chamber 17 by the transfer spiral 22.

When the waste material is transferred from the transfer chamber 16 to the processing chamber 17, a large amount of waste material is generated in the handling chamber 2 due to wet grain culms being supplied and threshed or highly efficient threshing. At the end of the transfer chamber 16, the rear wall 32 smoothly passes through a large cutout to a portion corresponding to the processing cylinder receiving net 26 and moves to the transfer chamber 19, where the blades 34 and the conical cylinder 22a are connected to each other. It moves to the outer periphery of the processing cylinder 23 while being expanded.

Next, the dust transferred to the processing chamber 17 is processed by the processing teeth 24 of the processing cylinder 23, and the single grains, finely divided straw waste, etc. are processed by the processing cylinder receiving net 26.
The straw waste leaks onto the oscillating sorting body 14 and joins the material to be sorted from the receiving net 9, and moves to the rear end of the processing chamber 17. The straw waste is directed from the discharge port 27 to the suction windmill 8 as described above. It is thrown and ejected.

When performing maintenance and inspection on the processing section 18, the front cover 54 of the processing section 18 is removed, and the upper
When the case 31 is opened by removing the front and rear hooks 43 from the receiving pins 44 by the associated levers 42, the processing cylinder 23 simultaneously rotates outward, and the processing chamber 17, the processing cylinder 23, and the transfer Since the perforated plate covering the lower surface of the spiral is exposed, it can be easily maintained.

Further, in this state, the upper and lower grips of the processing barrel receiving net 26 are released, so that it can be freely taken out for maintenance or replacement.

Furthermore, when performing maintenance and inspection on the handling chamber 2 or the swing sorting body 14 below, open the cylinder cabinet 56, rotate the levers 59, 59, and release the locking plates 60, 59.
60 from the upper part of the net frame 9c, the receiving net 9 on the back side can be pulled out upwards as shown by the chain line in FIG.
3 to remove it from the receiving pins 64, 64, the lower receiving net 9 can be easily pulled out as shown by the chain lines in FIG. 5a, and maintenance and inspection are performed in this state.

Moreover, once the maintenance and inspection are completed, it can be quickly and easily assembled by reversing the procedure described above.

(g) Effects of the invention As mentioned above, the present invention is a threshing machine that is equipped with a handling cylinder 1 and a processing cylinder 23.
The processing cylinder 23 is pivotally supported, and the lower part of the case 31 is pivotally supported on the lower frame 100 of the processing section 18 so that it can rotate with the processing cylinder 23 attached. The lower part of the frame 10
Since the upper frame 101 of the 0 and processing section 18 and the upper and lower parts of the case 31 are sandwiched and detachably mounted, by opening the case 31, the processing chamber 17 and the processing cylinder 23 can be easily opened and opened. It allows quick maintenance and inspection, and during the threshing process, the processing trunk receiving net 26 is connected to the upper frame 101 and lower frame 100 of the processing section 18 and the case 31.
It can be firmly clamped by the upper and lower parts of the housing, and when the case 31 is opened as described above, the clamping is released, and the processing barrel receiving net 26 can be easily taken out for maintenance or replacement.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is a vertical side view of the threshing machine, Fig. 2a is a longitudinal plan view of the same, Fig. 2b is a sectional view of the front locking part of the case, Fig. 3 is a perspective view of the upper catchment part of the receiving net, Figure 4a is a perspective view of the case attachment part, b is a perspective view of the front locking part,
Figure 5 a is a perspective view of the case with the case open, b is an enlarged view of the lower locking part of the case, c is an enlarged view of the upper locking part of the receiving net, and Figure 6 is an enlarged view of the receiving net on the back side. FIG. 7 is a cross-sectional view of the upper locking part of the case, and FIG. 8 is a cross-sectional view of the lower pivoting part of the case. 9... Receive net, 18... Processing section, 23... Processing cylinder, 26... Processing body receiving net, 31... Case.

Claims (1)

[Scope of utility model registration request] In a threshing machine equipped with a handling cylinder 1 and a processing cylinder 23, the processing cylinder 23 is pivotally supported by a case 31 which also serves as a side wall, and the lower part of the case 31 is attached to a frame 100 at the lower part of the processing section 18. The processing body receiving net 2 is pivoted so that it can rotate with the
6 is sandwiched between the lower frame 100, the upper frame 101 of the processing section 18, and the upper and lower parts of the case 31 and is detachably mounted thereon.