JPH0730016U - Threshing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The threshing efficiency can be dramatically improved without causing damage or blowout of the grain, and optimal threshing treatment according to the conditions of the stem can be made possible. The purpose is to provide additional functions such as a peeling treatment function and a gloss treatment function. [Structure] The handling cylinder 2 includes a starting end side handling cylinder 2A having a spiral continuous handling tooth 17 provided on an outer peripheral surface thereof and an end side handling cylinder 2B having a substantially inverted U-shaped independent handling tooth 16 provided on an outer peripheral surface thereof. And the rotation speed of each handling cylinder 2A, 2B is divided into
It is possible to change the speed with the internal speed change mechanism.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a threshing device provided in a harvester or combine harvester.

[0002]

[Problems to be Solved by Prior Art and Invention]

 In general, this seed threshing device is configured to thresh the stem culms conveyed from the starting end to the terminating end of the handling chamber by rotating a handling barrel provided with handling teeth on the outer peripheral surface. Among the above-mentioned handle teeth, the handle teeth provided at the starting end of the handle barrel perform shedding action while introducing the tips of the stems, and the handle tooth provided at the middle part of the handle barrel is a handle. The shredding action is performed continuously so that there is no residue, and a processing action is performed to make the cuttings and other grains circulating in the handling chamber into single particles without leaking from the receiving net. The handle teeth are designed to remove the stab particles that have stabbed into the culm, and also to discharge the particles attached to the branch stems that do not leak from the net. In the past, however, since all the handling teeth had an independent shape such as an inverted U shape and were distributed over the entire outer peripheral surface of the handling cylinder in a predetermined pattern, the handling cylinder responsible for most of the shedding action was handled. At the start end, the tip of the culm was inevitably wrapped around the handle tooth, resulting in a large amount of spike-cutting grains, shoot-attached grains, cutting straw, etc., which reduced the threshing efficiency. Therefore, it is possible to improve the threshing efficiency by rotating the handling cylinder at high speed.However, when the independently shaped handling tooth is rotated at high speed, it is not permissible to damage the grain and the stem of the handling room The actual situation was that it could not be done because there was a risk that the grain would blow out from the culm supply port.

[0003]

[Means for Solving the Problems]

 The present invention was devised in view of the above circumstances to provide a threshing device capable of eliminating these drawbacks, and is conveyed from the start end to the end side of the handling room. In a threshing device that threshes stalks by rotating a stalk that has teeth on the outer peripheral surface, the stalk is divided into a plurality of stalks arranged in the stalk transfer direction, and The outer peripheral surface of the body is provided with continuous continuous teeth, while the outer peripheral surface of the terminal side of the body is provided with independent individual teeth which are arranged independently at a predetermined interval. It is characterized in that the rotational speed of the handling cylinder can be changed. With this configuration, the present invention dramatically improves the threshing efficiency without causing damage or blowing of the grain, and enables the optimum threshing treatment according to the conditions of the stem and culm. The threshing device can be provided with additional functions such as a dehulling processing function and a gloss processing function.

[0004]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a threshing device, and the threshing device 1 leaks a first handling chamber 3 in which a handling barrel 2 described later is rotatably supported, and an unhandled material in the first handling chamber 3. To the first receiving net 4, to the second handling chamber 5 to which the untreated material that has reached the end of the first handling chamber 3 without leaking from the first receiving net 4 is supplied. A processing cylinder 6 that is rotatably supported, a second receiving net 7 that leaks the unhandled items in the second handling chamber 5, and the unloaded items that have leaked from the first and second receiving nets 4, 7. Oscillating sorting body 8 for sorting, Kara Min Juan 9 and No. 2 sorting fan 10 that generate sorting wind, No. 1 transporting body 11 for transporting the first thing to a grain tank (not shown), No. 2 second handling room The second carrier 12 that returns to the start end of 5, the dust-exhaust fan 13 that discharges straw waste and the like out of the machine, the stem culm from the start end (stem culm supply port 3a) of the first handling chamber 3 toward the end side. Feed for pinching and conveying It is constituted by a member such as the straw 14 and the straw 14, which conveys the stem culm conveyed to the end of the feed chain 14 toward the end of the feed chain 14. However, these basic configurations are all conventional. On the street.

The handling barrel 2 is formed in a cylindrical shape having a frustoconical stalk-culm introducing portion 2a at the starting end. In the present invention, the handling barrel 2 is moved in the stalk-carrying direction. The pair of handling cylinders 2A, 2B are formed separately, and each of the divided handling cylinders 2A, 2B can be independently rotated.

Of the divided handling drums 2A, 2B, a plurality of independent handling teeth 16 each having a predetermined shape are formed on the outer peripheral surface of the terminating side handling barrel 2B in a predetermined pattern by processing a wire material into a substantially inverted U shape. Although provided, the tip trajectory diameter of the independent handling tooth 16 is set to H.

On the other hand, on the outer peripheral surface of the starting end side handling cylinder 2A, continuous handling teeth 17 (consisting of three spiral plate materials in this embodiment) made of a spirally processed plate material are provided. Has been done. That is, the continuous handling tooth 17 performs the shedding action while positively introducing the stem culm transported into the first handling chamber 3 into the first handling chamber 3 based on the action of the spiral. Since it has a continuous shape, it is possible to almost eliminate the winding around the stems. Further, a plurality of processing teeth 18 projecting in the radial direction are detachably provided at predetermined intervals on the continuous handling tooth 17, and the tip locus diameter of the processing teeth 18 is independent of the above. The diameter is set to be the same as the tip locus diameter H of the handle tooth 16.

Further, a derivative is provided in the stem culm introducing portion 2a of the starting end side handling barrel 2A, but in the derivative of this embodiment, a plurality of sheets (three sheets in this embodiment) formed by spirally processing a plate material are used. The guide plate 19 is used. Then, the guide plate 19 positively introduces the stalks transported into the first handling chamber 3 into the first handling chamber 3 based on the action of the spiral. The tip trajectory diameter is set to be the same as the tip trajectory diameter H of the independent handling tooth 16 and the processing tooth 18. That is, since the guide plate 19 closes the inlet side of the first handling chamber 3 close to the first receiving net 4, it effectively blocks the blowout of the grains threshed by the starting end side handling barrel 2A, and Grains that try to accumulate at the start end of the first receiving net 4 are positively transported to the end side, so that the clogging caused by the retention of the grains is eliminated and the effective leakage bottom surface area of the first receiving net 4 is expanded. You are able to do it.

Reference numeral 20 denotes a diffuser plate disposed in a groove portion between the continuous handle teeth 17, wherein the diffuser plate 20 is a stem that is forcibly introduced based on the spiral action of the continuous handle teeth 17. It works so that the culm stays for a while. That is, by increasing the number of times (time) the continuous handling teeth 17 act on the stem, the threshing efficiency on the starting end side of the first handling chamber 3 is improved and the stuck grains stuck in the stem are effectively used. It can be dropped. The diffusion plate 20 may have a shape as shown in FIGS. 5 (A), 5 (B) and 5 (C).

Reference numeral 21 denotes a plurality of guide plates arranged on the ceiling of the first handling chamber 3 at predetermined intervals in the stalk transfer direction, and the guide plates 21 are the stalks to be transferred. The guide plate 21 of this embodiment has one end supported so as to be swingable back and forth, while the other end is supported so as to slide back and forth based on the operation of the connecting rod 22. ing. That is, since the inclination angle with respect to the rotating direction of the handle barrel can be adjusted, the residence time of the stems can be freely set according to the type and state of the stems.

Further, 23 is a straw cutting sickle which is arranged on the inner peripheral surface of the first handling chamber 3 in order to cut a long straw circulating in the first handling chamber 3, and the straw cutting sickle 23 is It is provided only on the inner peripheral surface on the terminal side of the first handling chamber 3 facing the independent handling teeth 16. That is, on the starting end side of the first handling chamber 3, the starting end side handling barrel 2A rotates at high speed as described later, and the processing tooth 18 divides the long straw based on the high speed rotation. It has become possible to process long straw without providing it.

By the way, the first receiving net 4 is provided from the starting end to the terminating end of the first handling chamber 3. The opening on the starting end side is set to be small, while the opening on the terminal end side is set to be large. ing. In other words, the starting end side of the first receiving net 4 leaks only single-grained grains to improve the sorting accuracy, while the terminal end of the first receiving net 4 has some branch stems attached. By allowing grain leakage and reducing the amount of grains discharged to the second handling chamber 5, the processing burden of the second handling chamber 5 is reduced and the grains are discharged from the end of the second handling chamber 5 to the outside of the machine. It is designed to reduce the lost grain that is lost as much as possible.

Further, reference numeral 24 denotes a handling barrel shaft rotatably installed in the first handling chamber 3, and the front and rear boss portions of the terminal-side handling barrel 2B are integrally formed on the rear side of the handling barrel shaft 24. On the other hand, the front and rear boss portions of the starting end side handling barrel 2A are rotatably supported on the front side of the handling barrel shaft 24. That is, the handling barrel shaft 24 functions as the handling barrel shaft 24 for the terminating side handling barrel 2B, while the front boss portion of the starting end side handling barrel 2A functions as the handling barrel shaft 25 of the starting end side handling barrel 2A. The handling cylinders 2A, 2B on the start end side and the end end side are independently rotated based on the drive of the shafts 24, 25.

Furthermore, 26 is a gear case provided on the front surface of the first handling chamber 3, and in the gear case 26, the power input by a pulley 28 provided at the front end of the input shaft 27 is input to the input shaft 27. While the power is transmitted from the sprocket 29 provided at the rear end to the processing cylinder 6, it is transmitted to the proximal-side handling cylinder shaft 25 and the terminal-side handling cylinder shaft 24 via the intermediate shaft 30 in the gear case 26, but from the input shaft 27. A power transmission mechanism that can change the rotational speed of each of the handling barrel shafts 25, 24 is provided in the power transmission path to the starting handling shaft 25 and the handling barrel shaft 24. This transmission mechanism includes a low speed gear (20T) 31 and a high speed gear (25T) 32 fixed to the input shaft 27, a low speed gear (40T) 33 and a high speed gear (39T) fixed to the terminal-side handle barrel shaft 24. ) 34, a low speed gear (36T) 35 and a high speed gear (31T) 36 fixed to the starting end side handle barrel shaft 25, and a low speed transmission gear (40T) 37 and a high speed gear which are slidably fitted on the intermediate shaft 30. A first speed change gear 39 including a speed change gear (39T) 38, a second speed change gear 42 slidably fitted on the intermediate shaft 30 and including a low speed speed change gear (39T) 40 and a high speed speed change gear (41T) 41. Etc. That is, the first transmission gear 38 has a low-speed position in which the low-speed gear 31 of the input shaft 27 and the low-speed gear 33 of the terminal-side handle barrel shaft 24 simultaneously mesh with the low-speed transmission gear 37, and the high-speed gear 32 of the input shaft 27 and It is possible to selectively operate the high-speed gear 34 of the terminal-side handle barrel shaft 24 at a high-speed position in which the high-speed shift gear 38 is simultaneously meshed, while the second shift gear 42 is a low-speed position of the start-side handle barrel shaft 25. The gear 35 is configured to be shiftable between a low speed position in which the low speed shift gear 40 is meshed with the gear 35 and a high speed position in which the high speed gear 36 of the starting end side handle barrel shaft 25 is meshed with the high speed shift gear 41. Therefore, based on the shift position of the first transmission gear 38, the number of rotations (rotational speed) of the terminal side handle barrel shaft 24 is two stages (when the input number of rotations is 1000 rpm, two stages of 500 rpm and 641 rpm). ), And the number of rotations of the starting end side handle barrel shaft 25 is set in four stages (541 rpm when the end side handle barrel shaft 24 is 500 rpm) based on the shift positions of the first shift gear 38 and the second shift gear 42. The speed can be changed to two stages of 661 rpm and the end side of the handle cylinder shaft 24 at 641 rpm and 847 rpm when the handle cylinder shaft 24 is 641 rpm. In any state, the start end side handle cylinder 2A is faster than the end side handle cylinder 2B. The gear ratio is set to rotate at.

In the embodiment of the present invention configured as described above, the stem culms conveyed to the first treatment chamber 3 are threshed by the rotation of the treatment drum 2 having the treatment teeth on the outer peripheral surface. The handling cylinder 2 includes a starting-side handling barrel 2A having a spiral continuous handling tooth 17 on the outer peripheral surface thereof and an end-side handling barrel 2B having a substantially inverted U-shaped independent handling tooth 16 provided on the outer peripheral surface thereof. Is divided into In other words, since the spiral continuous handling tooth 17 with almost no culm winding was provided on the starting end side of the handling barrel that is responsible for most of the shedding action, the occurrence of spike cuttings, branch sprouts-attached grains, cutting straws, etc. significantly. As a result, the leakage efficiency of the first receiving net 4 can be remarkably improved, and at the same time, the processing load on the terminal-side handling barrel 2B can be significantly reduced and the threshing efficiency can be remarkably improved. Can be made.

Moreover, since the starting end side handling cylinder 2A, which is responsible for most of the threshing action, is rotated at a higher speed than the terminal side handling drum 2B, the threshing efficiency can be further improved, but the threshing action by the high speed rotation is spiral. By the continuous handling teeth 17, the damage to the grain can be significantly reduced as compared with the case where the independent handling teeth 16 are rotated at a high speed.

Further, since the continuous handling teeth 17 provided on the starting end side handling barrel 2A positively introduce the tip portion of the stem culm into the handling chamber 3 based on the conveying action of the spiral, the starting end side handling barrel 2A Despite the fact that the grains rotate at a high speed, there is no inconvenience that the grains blow out from the stem-culm supply port 3a of the handling room 3, and moreover, the grains are prevented from staying on the first receiving net 4 and the leakage efficiency is improved. Can be further improved.

Further, since the rotational speeds of the starting end side handling barrel 2A and the end side handling barrel 2B can be changed in stages, the type (rice, wheat, seed, etc.) of stem stems to be threshed and the state (dry material, The optimum rotation speed can be selected according to the wetting material). In other words, when threshing hard grains, by selecting high-speed rotation, it is possible to perform efficient threshing work, but it is also possible to perform dehulling treatment and gloss treatment at the same time. On the other hand, when threshing soft grains that are easily scratched or seeds whose germination rate decreases due to damage, select the low speed rotation to reduce the damage caused by threshing as much as possible. Can be done.

[0019]

[Operation effect]

 In short, since the present invention is configured as described above, the threshing is performed by rotating the handling cylinder having the handling teeth on the outer peripheral surface, and the handling cylinders are arranged in the stem-culm conveying direction. It is divided into a plurality of handling cylinders, and continuous handling teeth spirally continuous are provided on the outer peripheral surface of the starting end side handling cylinder. That is, since the handle tooth on the starting end side, which is responsible for most of the shedding action, was formed into a spiral continuous handle tooth with almost no culm winding, the spike-cutting grains, branch-bearing grains, cutting straw, etc. Will be significantly reduced. Therefore, the leakage efficiency of the receiving net is not allowed to be improved, but the processing load on the terminal side handling cylinder is greatly reduced, and as a result, the threshing efficiency can be dramatically improved.

Moreover, since the starting end side handling cylinder, which is responsible for most of the threshing operation, can be rotated at a higher speed than the terminal end side handling cylinder, it is possible to further improve the threshing efficiency, and in this case, In this case, since the spiral continuous handling tooth performs the shedding action by high-speed rotation, the damage to the grain can be significantly reduced as compared with the case where the independently-shaped handling tooth is rotated at high speed.

Furthermore, since the spiral continuous treating tooth provided on the leading end side handling cylinder acts to positively introduce the tip portion of the stem culm into the handling chamber, the temporary handling end side handling cylinder is rotated at high speed. Even if it is done, the grain will not be blown out from the supply port of the handling room, and the grain can be prevented from accumulating on the receiving net to further improve the leakage efficiency.

Furthermore, in the present invention, since the rotational speed of each divided handling cylinder can be changed depending on the conditions of the stem culms to be threshed (type and state of stem culms), the stems can be changed. It is possible to perform optimal threshing treatment according to the culm conditions, and as a result, it is possible to perform efficient threshing work under various conditions, and it is possible to perform dehulling treatment and gloss treatment at the same time. The threshing device can be provided with added value.

[Brief description of drawings]

FIG. 1 is a side view of a threshing device.

FIG. 2 is a front view of the same.

FIG. 3 is a horizontal cross-sectional view of the same as above.

FIG. 4 is a vertical cross-sectional view of a handling cylinder and a gear case.

5A, 5B and 5C are front views showing other examples of the diffusion plate.

[Explanation of symbols]

 1 Threshing Device 2 Handling Cylinder 2A Starting End Side Handling Cylinder 2B Terminal Side Handling Cylinder 3 First Handling Chamber 16 Independent Handling Teeth 17 Continuous Handling Teeth 26 Gear Case

Claims (1)

[Scope of utility model registration request] 1. A threshing device in which a stem culm conveyed from a starting end to a terminal end of a handling chamber is threshed by rotation of a handling barrel provided with handling teeth on an outer peripheral surface thereof. , It is divided into a plurality of handling drums arranged in the stalk-carrying direction, and continuous handling teeth that are spirally continuous are provided on the outer peripheral surface of the starting end side handling drum, while a predetermined interval is provided on the outer peripheral surface of the end side handling drum. The threshing device is characterized in that it is provided with independent handling teeth that are independently arranged and that the rotation speed of each handling cylinder can be changed.