JPH08224039A - Threshing drum in thresher - Google Patents

Abstract

PURPOSE: To provide a threshing drum in a thresher preventing overload, quickly transferring a material to be treated and increasing operating efficiency by interlocking a second threshing drum to a transmitting device so as to rotate at higher speed than that of a first threshing drum and placing feeding teeth having a feeding corner near a joint part. CONSTITUTION: A threshing drum is spun on an axis in a threshing chamber 3 and a feed chain is placed along a threshing port parallel to the threshing drum, the threshing drum is constructed by a first threshing drum 5 and a subsequent second threshing drum 6, the second threshing drum 6 is interlocked to a transmitting device so as to rotate at higher speed than that of the first threshing drum 5 and feeding teeth 50 having a feeding corner near a joint part of these first threshing drum 5 and second threshing drum 6 to obtain the objective threshing drum in a thresher.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing machine for threshing rice, wheat or other agricultural products, in which a handling cylinder is divided into front and rear.

[0002]

2. Description of the Related Art Conventionally, a handling cylinder is mounted axially in a handling chamber, and only the shaping portion forming the frustoconical portion at the front end of the handling barrel is separated and the shredding portion following it is faster than the shaping portion. A threshing machine which is driven to rotate is already known from Japanese Patent Application Laid-Open No. 54-160641.

[0003]

Since the handling cylinder in the known threshing machine rotates the combing section at a low speed, it is possible to reduce the breakage of ears or the breakage of the combing during the combing, but it is followed by a high speed rotation. The cylindrical part, which is the processing part, is shredded all at once by the handling teeth planted in it, so overload is applied to the handling cylinder and a large amount of cuttings and straw debris are generated, and the grain stems are shredded from the shaping part. At the time of shifting to, the handling teeth of the shredding processing part rotate at high speed, so that it acts like a septum and inhibits the transfer of the culm of the grain culm, while on the other hand, the root part of the plant grows at a constant speed due to food chain. Since it was transported in the area, there was a delay in the tip of the ears, and many culms were cut.

[0004]

DISCLOSURE OF THE INVENTION The present invention relates to a thresher in which a handling barrel is mounted in a handling chamber and a feed chain is provided along a handling port parallel to the handling barrel. A second cylinder, and a second cylinder that follows the cylinder, the second cylinder is linked to a transmission so as to rotate faster than the first cylinder, and the joint between the first cylinder and the second cylinder is connected. The above-mentioned problem is caused by forcibly pushing the spikes of the grain culm which is about to move from the first handling barrel to the second handling barrel by mounting the feed teeth having a feed angle in the vicinity of I solved the point.

[0005]

[Function] When the ear side of the grain culm to be threshed is inserted from the supply port into the handling chamber, and the stocker side supplies it to the feed chain and the beginning end of the pinching rail, the ear part rotates at low speed and the front end of the first handling barrel. And then shreds in a state where there is little cutting of the ears and pulling of culms, and the ears of the grain culms try to move from the rear end of the first handling barrel to the front end of the second handling barrel. At this time, the handle teeth of the second handle cylinder rotate at a higher speed than the handle teeth of the first handle cylinder and try to inhibit the transition, but the feed dogs arranged near the joints of these handle cylinders rotate. The ear side is forcibly pushed backward, and eventually the ear part of the grain culvert smoothly moves from the rear end of the first handling barrel to the front end of the second handling barrel, improving threshing performance. You can

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. Inside a handling chamber 3 in which a feed chain 1 and a pinching rail 2 are arranged along the outside of a handling port, a front portion is cut. Handles a cylindrical first handling cylinder 5 having a conical shaped portion 5a of a frustoconical portion, and a cylindrical second handling cylinder 6 having a front portion fitted to the rear portion thereof so that the outer peripheral surface is continuous. It is supported by the body shaft 7, and the carding section 5
A helical fixing plate (solid tooth) or an inverted U-shaped rod has a base portion which is displaced forward and backward to form a feed angled fixing tooth 5b .. A large number of handling teeth 5c and 5d are fixed to the outer peripheral surface of the section and the second handling cylinder, and a side handling chamber 8 is provided side by side with one side near the rear of the handling chamber 3 to communicate with the side handling chamber. A transfer spiral 9 is projectingly provided on the outer circumference of the front part of the chamber 8, and a third handling cylinder 11 having a large number of processing teeth 10 ...

Further, as shown in FIG. 3, a first blower fan 15, a second blower fan 16 and a third blower fan are provided in this order from the front as shown in FIG. 3 in the lower part between the lower part of the handling chamber 3 and the rear dust treatment chamber 13. A ventilation fan 17 is provided, and a suction fan (or a cross-flow fan over the substantially entire width of the dust treatment chamber 13) 18 is disposed in the rear portion to form a sorting air passage, and this sorting air passage has an upper transfer sorting portion. An oscillating sorting body 19 composed of a lower transport sorting section and a lower transport sorting section is erected so as to swing back and forth, and the upper transport sorting section is provided with an upper transport plate 20 located below the first handling cylinder 5 and a large number of subsequent upper transport plates. Between the fins of the first blower fan 15 and the sieve sorter 21 through which the sorting wind of the first blower 15 blows. The lower sorting part is connected to the lower transfer plate 22 and the rear end of the sieve sorting body 21. And the selection wind of the second blower fan 16 blows through 25, the first flow plate 24, and the second sieve selection unit 27 which is connected to the upper end portion thereof and which is formed of a Straw rack through which the selection wind of the third blower fan 17 is blown out while facing the second gutter 26. The mesh of the receiving net 28 extending from the lower part of the handling chamber 3 to the side opposite to the feed chain 1 is small in the portion corresponding to the first handling cylinder 5,
The part corresponding to the second handling cylinder 6 is large.

The handling cylinder shaft 7 is composed of an inner shaft 7a and an outer shaft 7b rotatably fitted to the outer circumference of the front part thereof.
The handling cylinder 6 has bosses 29, 30 fixed to the front and rear thereof and an inner shaft 7a.
The boss 31 at the front of the first handling cylinder 5 is screwed to the outer shaft 7b, and the boss 33 at the rear is rotated by a boss 29 at the front of the second handling cylinder 6 via a bearing. It is supported freely.

The transmission case 35 fixed to the front surface of the handling chamber 3 includes a front end portion of the inner shaft 7a and the outer shaft 7b, and a front portion of the input shaft 36 to which an input pulley 36a is detachably attached. And a rear portion and a front portion and a rear portion of the transmission shaft 37 are rotatably supported via bearings, respectively.
A bracket 38 continuously provided on one side of the transmission case 35 rotatably supports a drive shaft 39 that is transmitted to the processing shaft 12, and an intermediate gear 40 is rotatably mounted on the input shaft 36 in order from the front and has a large diameter. The high-speed gear 41 and the small-diameter low-speed gear 42 are fixed, and the gear 43 attached to the front part of the inner shaft 7a and the transmission shaft 3
A large-diameter speed-increasing gear 45 fixed to the front part of 7 is distributed on both sides of the intermediate gear 40 and meshed therewith, and one side of the low-speed gear 42 is meshed with a gear 46 which rotates integrally with the outer shaft 7b. Since a shift gear 47, which is slid forward and backward by a shifter 47a, is spline-fitted to the rear portion of 37, the outer shaft 7b has teeth of the low speed gear 42 and a gear 46 meshing with one side thereof. When driven by a constant gear ratio set by the numerical ratio, the transmission gear 47 is slid backward and its large diameter portion is meshed with the low speed gear 42, the inner shaft 7a and the second handling cylinder 6 rotate at low speed, When the small diameter portion is slid forward to mesh with the high speed gear 41, the second handling cylinder 6 rotates at high speed. However, even when the second handling cylinder 6 is rotated at a low speed, since it is driven via the speed increasing gear 45, it rotates at a higher speed than the first handling cylinder 5.

Further, a chain is stretched between the sprocket attached to the rear end of the speed change shaft 37 and the sprocket of the drive shaft 39, and the drive shaft 39 is connected to the processing shaft 12 via an intermediate shaft 48 and a universal joint. Since they are linked together, the processing shaft 12 is accelerated or decelerated in synchronization with the second handling cylinder 6, and the third handling cylinder 11
Is driven so that the peripheral speed thereof is higher than the peripheral speed of the second handling cylinder 6.

Furthermore, since the second handling cylinder 6 rotates at a higher speed than the first handling cylinder 5, the objects to be handled are transferred from the first handling cylinder 5 to the second handling cylinder 5.
At the time of shifting to the handling barrel 6, the shifting is hindered by the handling teeth 5d of the second handling barrel 6, but a lead angle is formed between the rear end of the first handling barrel 5 and the front end of the second handling barrel 5, respectively. Since a plurality of solid teeth or inverted U-shaped feed teeth 50, ... Are provided, the feed teeth 50, ..
The feed dogs 50 of the second handling barrel 6 are fed toward the handling barrel 6, and the feed teeth 50, ...
Since it is forcibly transferred toward d, the smooth transfer can be performed even though the rotation speed of the second handling cylinder 6 is higher than that of the first handling cylinder 5.

When the feed dog 50 is a solid tooth as shown in FIG. 7, the next feed tooth 50a is made smaller and the base portion is inclined between them so that the base portion is rotatable and has a feed angle. The beater teeth 50b, ..., Which are pivotally attached and whose tip portion has a sawtooth shape, are arranged. The beater teeth 50b. The attached straw waste is scraped off to facilitate the leakage, and at the same time, the single-grained grains are pressed against the coarse portion of the rear portion of the receiving net 28 to be dispersed and rapidly leaked, and at the same time, the inclined surface facilitates the transfer. .

In the threshing device described above, the ear side of a grain culm or the like is inserted into the handling chamber 3 from the supply port, and the root portion of the plant is pinched and conveyed by the feed chain 1 and the pinching rails 2 and inserted into the handling chamber 3. The ears thus prepared are firstly gently combed by the combing teeth 5b which are planted in the combing portion 5a of the first handling cylinder 5 rotating at a low speed, and then the culm directions are substantially aligned, and then the above-mentioned trimming is performed. Card 5b
Similarly to the above, the handling teeth 5c of the first handling cylinder 5 rotating at a low speed suppresses the occurrence of the cutting of the ear, the drop of the culm, the break of the culm and the like, and the shredding treatment is performed in a state where the load does not increase sharply. .

Between the first handling cylinder 5 and the second handling cylinder 6, the feed dogs 50, which are erected on the outer peripheral surface of the rear end of the first handling cylinder 5, are forcedly pushed rearward, 2 The feed dogs 50 erected upright on the outer periphery of the front of the handle cylinder 6 receive the extruded workpiece between the feed dogs 50, 50 in the front and rear of the rotation direction, and at the same time, toward the handle tooth 5d that follows. Since it is transferred, the object to be treated does not stagnate between the first handling cylinder 5 and the second handling cylinder 6, and is smoothly moved by the handling teeth 5d of the second handling cylinder 6 rotating at high speed. The single grain of the cutting and twigs and the subdivision of long straw, panicle cutting, etc. are highly efficient in a short range, and the processed material that has moved to the rear part of the handling chamber 3 is the second handling cylinder that rotates at high speed. 6 is thrown to the front part of the side handling chamber 8 from the dust inlet 51, and the peripheral speed becomes higher than that of the handling tooth 5d of the second handling cylinder 6. That the transport spiral 9 is Koso while processing an object to be processed, processes the processing teeth 10 ... it is subsequently.

Single grained grains and small straw debris leaked from the front small mesh portion of the receiving net 28, and were treated by the second handling cylinder 6 in the rear coarse mesh portion. Items are rapidly leaked to reduce the load on the second handling cylinder 6, and the items to be sorted that have leaked in this way are transferred and sorted by the upper sorting section, and those that have been roughly sorted and leaked are sorted by the sorting net. After shifting to 25 and being subjected to wind selection and sieving, the grain enters the first receiving gutter 23 and is carried out of the machine by the first transfer spiral and the fried cylinder, and the sieve selecting body 21 and the sorting net 25 Straws containing the second material that has moved to the rear end of the waste, and the objects to be sorted that have leaked from the coarse processing drum receiving net 53 are further subjected to wind selection and sieve selection by the second sieve selection unit 27, The second object that has fallen into the trough 26 is transferred to the side of the machine by the second transfer spiral and then is lifted by the second lifting spiral cylinder 52 to swing. The remaining straw scraps returned to the separate body 19 or the handling chamber 3 and the straw scraps thrown from the discharge port 54 at the rear end of the side handling chamber 8 are sucked out of the machine by a dust-discharging fan such as a suction fan 18. To be done.

[0016]

As described above, the present invention is a threshing machine in which a handling cylinder is axially mounted in the handling chamber 3 and a feed chain is provided along a handling opening parallel to the handling barrel. The first handling cylinder 5 and the second handling cylinder 6 following the first handling cylinder 5, and the second handling cylinder 6 includes the first handling cylinder 5
Interlockingly connected to the transmission so that it rotates faster than the handling cylinder 5,
Since the feed dogs 50 having a feed angle are mounted in the vicinity of the joint between the first handling cylinder 5 and the second handling cylinder 6,
0 ... means that the second handling cylinder 6 rotates at a higher speed than the first handling cylinder 5 to forcibly push back the object to be stagnant between the front and rear handling cylinders 5, 6. , The first handling cylinder 5
It is possible to prevent an overload from being applied to the first handling cylinder 5, which has a low speed due to the accumulation of a large amount of the processing object around the workpiece, and also to handle the objects to be processed from the first handling cylinder 5 to the second handling cylinder 6. It becomes possible to quickly move to the process, and the handling of unhandled items can be performed with high efficiency.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional plan view showing the relationship between the handling cylinders.

FIG. 2 is a vertical plan view of a transmission unit.

FIG. 3 is a vertical sectional side view showing an outline of the entire threshing machine.

FIG. 4 is a vertical plan view showing the outline of the entire threshing machine.

FIG. 5 is a cross-sectional view showing the outline of the entire thresher.

FIG. 6 is a vertical plan view showing another example of the dust exhaust fan.

FIG. 7 is a plan view showing another example of the feed dog.

[Explanation of symbols]

 1 Feed Chain 2 Clamping Rail 3 Handling Room 5 First Handling Body 5a Adjusting Part 5b Adjusting Teeth 6 Second Handling Body 7 Handling Body Shaft 7a Inner Shaft 7b Outer Shaft 8 Side Handling Room 11 Third Handling Body 19 Swing Dynamic sorter 50 Feed dog

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Misao Kitasaka 667 Izamocho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Yoichi Yamane 667 Ojiya-cho, Higashi-Izumo, Yatsuka-gun, Shimane Prefecture Address 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Takao Komura 667 Izuyacho, Higashi Izumo-cho, Yatsuka-gun Shimane Prefecture Address 667 Inside Mitsubishi Agricultural Machinery Co., Ltd. (72) Yoshiaki Kato 667, Ojiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Address 1 Within Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A thresher in which a handling cylinder is mounted in the handling chamber 3 and a feed chain is provided along a handling opening parallel to the handling barrel, wherein the handling barrel comprises a first handling barrel 5 and a subsequent handling barrel. 2 handling cylinder 6, the second handling cylinder 6 is interlockingly connected to the transmission so as to rotate at a higher speed than the first handling cylinder 5, and a joint portion between these first handling cylinder 5 and second handling cylinder 6 Feed dog 50 having a feed angle in the vicinity of
.. A handling cylinder in a thresher characterized by being equipped with.