JP2009055827A - Discharged straw-conveying apparatus of thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce stagnation of discharged straw, to smoothly convey discharged straw backward and to improve efficiency of threshing operation by making a transmission endless belt itself for transmitting rotation power to a discharged straw-conveying apparatus have a discharged straw-conveying function so that the ear tip side of discharged straw is conveyed as a third conveying endless belt following a plant foot and an ear tip. <P>SOLUTION: The discharged straw-conveying apparatus (5) comprising a plant foot side conveying endless belt (3) for conveying discharged straw after threshing and an ear tip side conveying endless belt (4) has a constitution that power is transmitted from a conveying end side by the transmission endless belt (7) transmittably connected to a threshing room (6) side. The transmission endless belt (7) is positioned further at a more ear tip side relatively to the ear tip side conveying endless belt (4) and yet arranged in an approximately parallel state and has a conveying support function. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a waste transporting device for a threshing machine provided in, for example, a combine.

Conventionally, a waste transporting device of a threshing machine is provided with a handling cylinder shaft pivoted in a handling chamber, a processing cylinder shaft adjacent to the handling cylinder, or a transmission device dedicated to the waste transporting device, and is transmitted to the feed chain. It is configured to transport the waste inherited from the back to the rear of the aircraft. For example, the transmission mechanism of the waste transporting device disclosed in Japanese Patent Application Laid-Open No. 2001-61338 arranges the rotational power extracted from the barrel shaft along the transport direction on the tip side of the waste waste to be transported. And is transmitted from the terminal side of the waste transport to the waste transport device.
JP 2001-61338 A

  Conventionally, as disclosed in Patent Document 1 in the previous section, this type of evacuation conveyance device includes a nip conveyance mechanism that conveys from the feed chain and nips the stock stock side of the evacuation, and evacuates from the feed chain. It is comprised from the latching conveyance mechanism which latches and conveys the tip side of a cocoon from the upper side. The publicly known technology has a structure in which a chain-type transmission portion is installed in the chain case and is provided along the latter half of the waste transporting device, and is transmitted from the rear side of the waste transporting device. It has become.

As can be seen from the above known example, the conventional waste transporting device transports the stock side in a pinched state, but the tip side is in a locked state, and the tip side of the two transport mechanisms is usually Since the transmission mechanism is provided, the arrangement is closer to the stockholder side as a whole.
Therefore, the conventional waste transporting device lacks smoothness on the tip side of the waste and often stagnates. In particular, when the waste is long, there is a problem that the tendency becomes remarkable.

  Furthermore, the conventional waste transporting device has no means to correct the transport posture even if the tip of the waste is sent stagnant and the transport posture is disturbed. There were also problems that occurred or were transported out of the machine in an irregular manner.

In order to solve the above problems, the present invention takes the following technical means.
That is, the invention described in claim 1 is a waste comprising a stock-end-side transport endless belt (3) and a tip-side transport endless belt (4) that inherits the waste after threshing from the feed chain (1) and transports it backward. A transmission device (5) is provided, and the waste conveyance device (5) is driven from the conveyance end side by a transmission endless belt (7) connected to the handling chamber (6) so as to be capable of transmission. The transmission endless band (7) is substantially parallel to the tip end side transport endless band (4) at a position closer to the tip end side than the tip end side transport endless band (4) so that the band (7) itself has a rejection transport function. It is set as the waste conveying apparatus of the threshing machine characterized by having arrange | positioned.

  That is, the transmission endless belt 7 itself that transmits rotational power to the waste transporting device 5 has a waste transporting function, thereby transporting the head of the waste as the third transport endless belt after the stock and the head. Is.

  And, especially in the case of long culm, in the conventional evacuation transport device that tends to be stagnant, the transport on the tip side of the stubble is caused by the transport function on the tip side of the transmission endless belt 7 It will be possible to transport the waste in the rear with good posture.

Next, the invention according to claim 2 is a threshing machine waste transporting device according to claim 1, wherein a plurality of transport lugs (8) are provided in the transmission endless belt (7). is there.
Thereby, the excretion conveyance function of a transmission endless belt (7) improves more.

  Next, the invention according to claim 3 is configured such that the transmission endless belt (7) has a structure in which a transmission belt (11) is wound around an input pulley (9) and an output pulley (10). At least one of (9) and the output side pulley (10) is a split pulley capable of changing an effective diameter.

  Accordingly, for example, when the input side split pulley 12 is shifted, the entire waste transporting device 5 including the transmission belt 11 can be shifted, and the waste transporting device 5 is accelerated or decelerated with respect to the feed chain 1. Thus, the succession and transfer of the waste can be made smooth. Further, for example, when the output-side split pulley 12 is shifted, it is possible to shift the transmission side lower end stock side transport endless belt 3 and the tip end side transport endless belt 4 with respect to the constant speed transmission belt 11. Thus, the transporting posture of the waste can be corrected in the transporting process.

  Next, the invention according to claim 4 is characterized in that the output pulley (10) is attached to an input shaft (13) pivoted on the conveying terminal side of the waste conveying device (5), and the input shaft (13) is attached. 4. The threshing machine waste transporting device according to claim 3, wherein the swing support device is a turning fulcrum (P) for upward rotation of the waste transporting device (5).

  As a result, the ascending rotation mechanism of the waste transporting device 5 can be configured relatively easily.

  According to the first aspect of the present invention, the transmission endless belt 7 itself that transmits rotational power to the waste transporting device 5 has a waste transporting function, so that it is discharged as the third transport endless belt after the stock and the tip. It can be transported on the tip side of the cocoon. And especially in the case of a long cage, the transmission endless belt 7 has a transmission and a rejection in comparison with the conventional rejection conveyance device in which the conveyance on the tip side of the rejection is not smooth and tends to be stagnant. Since both actions with the conveyance are performed, the stagnation of the waste can be reduced and the conveyance can be smoothly performed rearward, and the efficiency of the threshing operation can be improved.

  According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the transmission endless belt 7 itself is provided with a plurality of transfer lugs 8 so that the transmission endless belt 7 itself can be removed and conveyed. And the efficiency of the threshing work can be increased as the waste can be conveyed more smoothly.

  According to the third aspect of the invention, the effects of the first aspect of the invention can be achieved, and the entire speed of the waste transporting device 5 including the transmission belt 11 can be changed so that the feed chain 1 is discharged. It is possible to increase the efficiency of the threshing operation by increasing or decreasing the speed of the straw transporting device 5 so that the succeeding transport of the waste can be performed smoothly. And since it is possible to shift the stock end side transport endless belt 3 and the tip end side transport endless belt 4 on the lower transmission side with respect to the constant speed transmission belt 11, transport by the waste transporting device 5 is possible. In the process, the transporting posture of the waste can be corrected. For example, the waste can be smoothly cut by throwing the waste into the waste cutting device in an appropriate posture.

  And according to invention of Claim 4, in addition to having the effect of the invention of Claim 3, the raising and turning mechanism of the waste transporting device 5 for cleaning and maintaining the waste transporting device 5 is provided. The input shaft 13 can be configured relatively simply as the rotation fulcrum P, and the manufacturing cost can be reduced and provided at a low cost.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIGS. 1 and 4, the threshing machine 2 is configured to perform threshing and sorting by arranging a sorting chamber 16 below the handling chamber 6 on which the handling cylinder 15 is pivoted. The handling chamber 6 is configured such that a cereal supply port 17 is opened on one side, and a discharge port 19 is opened on the other side communicated with the handling port 18. And, as shown in the drawing, the handling chamber 6 has the above-mentioned handling port 18 opened along the axial direction of the handling cylinder 15, and the stock holder is provided by the feed chain 1 provided along the outside thereof. The tip side of the grain culm that is sandwiched and conveyed is supplied to the handling chamber 6 and subjected to a threshing action, and after threshing, it is discharged out of the room from the culling port 19 as sewage.

  As shown in FIG. 4, the sorting chamber 16 is provided below the handling chamber 6, and a rotary bowl 21 is pivoted on the upper side of the sorting direction below the swinging sorting shelf 20. The sorting air is blown from the start end portion of the sorting air passage 22. The sorting chamber 16 has the swing sorting shelf 20 on the upper side of the sorting air passage 22, and the first transport spiral 23 and the second transport spiral 24 are axially mounted on the lower side of the air passage 22. Is provided. 25 is a chaff sheave, 26 is a stroller, and 27 is a dust exhaust fan comprising a cross flow fan.

Reference numeral 28 denotes a second processing cylinder, 29 denotes a dust removal processing cylinder, and 30 denotes a waste cutter, which are connected to a waste part passing through the upper side of the dust fan 27.
Next, an embodiment will be described with respect to the waste transporting device 5 that is a main part of the invention of the present application. First, as shown in the drawings, the waste transporting device 5 has a holding chain 3a and a holding guide rod 3b on the stock side. A stock end side transport endless belt 3 is provided, and a tip end side transport endless belt 4 consisting of a chain 4b with a lug to which a transport lug 4a is attached at predetermined intervals is arranged in parallel on the tip side. Are integrated into a framework. Then, the waste transporting device 5 has the transport start end faced to the end portion of the feed chain 1 (the discharge port 19 of the handling chamber 6), and the transport end portion is brought to the rear right side of the threshing machine 2 in plan view. Are arranged obliquely. As shown in FIG. 1, the transmission endless belt 7 includes a split pulley 12 pivoted on a gear box 34 attached to and supported by the rear plate 33 of the handling chamber 6, and a machine body (threshing machine 2, the same applies hereinafter) 2. A transmission belt 11 is wound around an output pulley 10 that is pivotally attached to an input shaft 13 that is mounted on the rear portion of the shaft, and the waste conveying device 5 is transmitted.

  Then, as shown in the drawing, the transmission belt 11 is positioned closer to the tip of the waste side than the tip end side transport endless belt 4 and arranged so as to be substantially parallel to the tip end side transport endless belt 4. In addition, the belt itself has a conveyance assist function.

  In the embodiment, the transmission belt 11 (the transmission endless belt 7) has a configuration in which a plurality of conveying lugs 8 are arranged and attached as shown in FIG. In this case, as shown in FIG. 3, the transmission endless belt 7 of the embodiment is pivotally attached by placing transport lugs 8 at predetermined intervals so as to be able to stand up and down on the chain. The lug 8 stands up in the conveyance path on the side and performs a conveyance action, and is configured to fall and move on the upper side.

In the description of the above embodiment, the gear box 34 is attached to the rear side plate 33 of the handling chamber 6, so that the gear box 34 is reinforced with each other to increase the strength and perform stable transmission.
The transmission belt 11 has a configuration in which the input side and the output side are wound around the transmission pulleys 9 and 10, respectively, as shown in the drawing. In the embodiment shown in FIG. 2 is configured such that the effective diameter can be changed as a split pulley 12 so that transmission can be performed. In the embodiment shown in FIG. 2, the other output-side pulley 10 is configured as a split pulley 12 so that transmission can be performed. is doing. As shown in FIGS. 1 and 2, both split pulleys 12 are connected to a shift control motor 35 so that automatic shift control can be performed. Then, as shown in the drawing, the tension device 37 has a tension pulley 39 pivotally mounted on the tip end of a tension arm 38 that supports the base portion of the gear box 34, and the transmission belt 11 that is loosened in association with the speed change operation is elastically moved. Thus, the tension of the belt 11 is adjusted while tension is applied.

  As described above, in the embodiment, since the tension device 37 is supported by the gear box 34, it is supported in a stable state in strength, and the tension arm 38 is extended to the lower side along the conveying direction of the waste. Since it is configured, there is an advantage that there is almost no trapping of wrinkles.

  The transmission belt 11 and the waste conveying device 5 configured as described above are provided with a wheat straw sensor in the conveyance path of the feed chain 1 to detect the layer thickness of the wheat straw, and automatically shift based on the detection information. be able to. That is, the embodiment shown in FIG. 1 can automatically control the shift control motor 35 to the speed increasing side by the control mechanism when the grain sensor detects that the layer of the transported grain is thick. Then, the transmission belt 11 is increased in speed by shifting the transmission diameter of the split pulley 12 to the smaller diameter side, and the speed of the waste conveying device 5 is increased to be higher than that of the feed chain 1, and the inherited waste is thinly layered. It can be discharged and transported evenly.

  Next, the embodiment shown in FIG. 2 is an automatic transmission mechanism used when correcting and improving the conveying posture of the waste, and the split pulley 12 has its transmission diameter changed by the transmission control motor 35. Then, the lower-side transmission conveyor device 5 is shifted with respect to the constant-speed transmission belt 11. In this way, the waste during conveyance is the same speed as the stock end side transport endless belt 3 and the tip side transport endless belt 4 at the same time with respect to the transmission belt 11 having a transport function while moving at a constant speed. Since the speed is changed, the transporting posture of the waste of the head delay or the reverse stock delay is corrected appropriately.

  Next, as shown in the drawing, the waste transporting device 5 is configured to be able to transmit power by attaching an output side pulley 10 of the transmission belt 11 to an input shaft 13 pivoted on the transport end side. However, in this embodiment, the input shaft 13 is used as the rotation fulcrum P, and the stocker side transport endless belt 3 including the stocker side sandwiching chain 3a (the gripping guide rod 3b is left in the lower machine body) and the transport Exhaust of the excavating and conveying apparatus 5 for rotating the two endless bands 3 and 4 with the tip end side conveying endless band 4 composed of a chain 4b with lugs attached with lugs 4a at predetermined intervals upward from the conveying start end side An open mechanism is configured.

  As described above, in the embodiment, when cleaning or maintenance of the waste transporting device 5 is performed, it can be performed by opening and turning upward using the waste opening mechanism. The embodiment has an advantage that the configuration becomes relatively simple by using the input shaft 13 of the waste transporting device 5 as the rotation fulcrum P.

Plan sectional view showing the main part of the threshing machine Plan sectional view showing the main part of the threshing machine Side view of a transmission endless belt with a transport lug attached Side cross section of threshing machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Feed chain 3 Stock end side conveyance endless belt 4 Tip end side conveyance endless belt 5 Exhaust conveyance device 6 Handling chamber 7 Transmission endless belt 8 Conveyance lug 9 Input side pulley 10 Output side pulley 11 Transmission belt 12 Split pulley 13 Input shaft P times Dynamic fulcrum

Claims (4)

  A scouring and transporting device (5) comprising a strainer side transport endless belt (3) and a tip end side transport endless belt (4) that inherits the scouring after threshing from the feed chain (1) and transports it backward is provided, The waste transporting device (5) is driven from the transport end side by a transmission endless belt (7) connected to the handling chamber (6) so as to be capable of transmission, and the transmission endless belt (7) itself is a waste transport function. The threshing machine is characterized in that the transmission endless band (7) is arranged in a state substantially parallel to the tip end side transport endless band (4) at a position closer to the tip end side than the tip end side transport endless band (4). Waste transport device.   The waste conveying apparatus of the threshing machine according to claim 1, wherein a plurality of conveying lugs (8) are provided in the transmission endless belt (7).   The transmission endless belt (7) has a configuration in which a transmission belt (11) is wound around an input pulley (9) and an output pulley (10), and the input pulley (9) or the output pulley (10) 2. The apparatus according to claim 1, wherein at least one of them is a split pulley capable of changing an effective diameter.   The output-side pulley (10) is attached to an input shaft (13) pivoted on the conveyance end side of the waste transporting device (5), and the input shaft (13) is used to rotate and lift the waste transporting device (5). 4. The threshing machine waste transporting device according to claim 3, wherein the fulcrum is a pivot point (P).

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