JP6708571B2 - Combine - Google Patents

Description

The present invention relates to a combine.

In a combine equipped with a mowing device and a threshing device, it has been proposed to provide a limit switch in the conveyance path of the mowing culm and detect the jam of the mowing culm by the limit switch (see Patent Documents 1 and 2). ).

This conventional combine is that the transport jam of the harvested grain culm has occurred in the transport path of the harvested grain culm formed by the stock source transport mechanism and the vertical transport mechanism in the reaping device and the feed chain transport mechanism in the threshing device. It is possible to notify the driver, and thus it is possible to effectively prevent the combine from being continuously loaded with a load due to transport clogging.

However, this conventional combine is for detecting that the jam of the harvested grain culm has actually been conveyed, and cannot perform early detection and advance detection of the jam of the grain culm being conveyed.

Further, in Patent Document 3 below, a longitudinal transport mechanism in a mowing device that forms a grain culm transport path, and a long length provided in a posture substantially parallel to the endless body of the vertical transport mechanism and capable of coming into contact with and separating from each other. In a combine equipped with a pinching guide and an urging member for urging the pinching guide toward the endless body so that the harvested grain culm is pinched and conveyed between the pinching guide and the endless body It has been proposed to detect the stroke of the pinching guide and detect a load that changes according to the amount of conveyance of the cut grain culm based on the detection result (see Patent Document 3 below).

The combine described in Patent Document 3 is useful in that it can detect an increase in the transport load of the harvested culm in advance before the transport jam of the harvested culm actually occurs, but a single transport mechanism ( This is to detect an increase in the amount of grain culm transported by the vertical transport mechanism), and only a local amount of grain culm transported by the single transport mechanism can be detected.

In particular, the transport clogging of the cut grain culm is likely to occur at the inherited portion between the one transport mechanism (for example, the stock transport mechanism) and the other transport mechanism subsequent thereto (for example, the vertical transport mechanism). With the combine described in Patent Document 3, it is difficult to effectively perform early detection or advance detection of transport clogging at the inherited portion.

JP-A-8-154458 JP, 10-155329, A JP, 2015-223095, A

The present invention has been made in view of such conventional technology, and an object thereof is to provide a combine that can effectively perform early detection and pre-detection of grain culm transport clogging in an inherited portion of a transport mechanism adjacent in the grain culm transport direction. To do.

The present invention, in order to achieve the above object, a harvesting device that cuts grain culms and conveys the harvested grain culm to the rear, and inherits the harvested grain culm from the reaping device, and performs threshing while transporting to the rear. and a device, said cutting device comprising: a plurality of cutting transfer mechanism is placed to the downstream side from the upstream side in the conveying direction, a plurality of cutting transfer mechanism having an endless body, each is rotated endlessly , A plurality of mowing and pinching mechanisms that cooperate with each of the plurality of mowing and transporting mechanisms and sandwich the mowing culms between the corresponding endless bodies, and the threshing device is endlessly rotationally driven. A feed chain transporting mechanism having a feed chain, and a feed chain pinching mechanism for holding a cutting grain culm in cooperation with the feed chain transporting mechanism, and the plurality of cutting pinching mechanisms and the feed chain. Each of the pinching mechanisms has a pinching body that holds the harvested culm between it and the corresponding endless body, and a combiner that urges the pinching body toward the corresponding endless body. Of the plurality of cutting and pinching mechanisms and the feed chain pinching mechanism, an upstream detection sensor that detects a movement amount of the pinching body in the first pinching mechanism, and a grain from the first pinching mechanism. Based on the detection values of the downstream side detection sensor, the upstream side detection sensor and the downstream side detection sensor for detecting the movement amount of the pinching body in the second pinching mechanism located on the downstream side in the culm conveyance direction , the grain culm conveyance state is set. A control device for recognizing is provided, and the control device detects a grain culm transport time between the upstream detection sensor and the downstream detection sensor based on detection values of the upstream detection sensor and the downstream detection sensor. Then, a combine configured to recognize the grain culm transport state from the grain culm transport time is provided.

Preferably, the control device, if the detection value detected by the downstream side detection sensor does not become the same detection value as the detection value detected by the upstream side detection sensor a predetermined time before, the upstream side detection delay of culms transport is a shall be determined to have occurred between the sensor and the downstream sensor.

The plurality of mowing and transporting mechanisms are a left stock source transporting mechanism for transporting backward the stocks of the left-sided cutting grain culms located on the left side of the combine traveling direction, and a right-side cutting culm grain located on the right side of the combine traveling direction. A plurality of reaping and picking rods, including a right stock yuan carrying mechanism for carrying the stock plant backward, and a vertical carrying mechanism for carrying the harvested grain culms joined from the left stock yuan carrying mechanism and the right stock yuan carrying mechanism. The mechanism may include a left stock element pinching mechanism, a right stock element pinching mechanism, and a vertical pinching mechanism that cooperate with each of the left stock element transport mechanism, the right stock element transport mechanism, and the vertical transport mechanism.
In the first mode, one of the left stock source pinching mechanism and the right stock source pinching mechanism is the first pinching mechanism, and the vertical pinching mechanism is the second pinching mechanism.

In the second embodiment, the upstream detection sensor is provided in the left stock source pinching mechanism such that both the left stock source pinching mechanism and the right stock source pinching mechanism are the first pinching mechanism. It is assumed that the first vertical detection sensor includes a first upstream-side detection sensor that detects a movement amount of the pinching body and a second upstream-side detection sensor that detects a movement amount of the pinching body in the right stock base pinching mechanism. The mechanism is the second pinching mechanism.

The combine according to the present invention includes a drive source, a traveling device, a transmission device inserted in a traveling system transmission path for transmitting rotational power from the drive source to the traveling device, and a vehicle speed setting member for setting a vehicle speed. In the case where the harvesting device is configured so that the rotational power synchronized with the vehicle speed is transmitted from the transmission, it is preferable that the control device is configured so that the rotational power output from the transmission is While performing normal control for controlling the operation of the drive source and/or the transmission so that the rotation speed corresponds to the vehicle speed set by the vehicle speed setting member, the upstream sensor and the downstream sensor When it is determined that there is a delay in the transfer of grain culm between the two, the load avoidance is performed so as to control the operation of the drive source and/or the transmission so that the vehicle speed becomes lower than the vehicle speed expressed by the normal control. Is configured to exercise control.

Further, the present invention comprises a mowing device that cuts grain culms and conveys the harvested grain culm to the rear, and inherits the harvested grain culm from the reaping device, and a threshing device that performs the threshing process while conveying the rear, cutting apparatus, placed strains based transfer mechanism from the conveying direction upstream side to the downstream side, the vertical transport mechanism, and a first auxiliary transport mechanism and the second auxiliary transport mechanism, strain based clamping cooperating with the strain based transport mechanism And a vertical pinching mechanism cooperating with the vertical transport mechanism, an auxiliary pinching mechanism cooperating with the first auxiliary transport mechanism, and an inheritance guide mechanism cooperating with the second auxiliary transport mechanism. The threshing device includes a feed chain transport mechanism, a feed chain pinching mechanism that cooperates with the feed chain transport mechanism, and a cut culm sent by the second auxiliary transport mechanism to the feed chain transport mechanism and the feed chain transport mechanism. A feed chain guide mechanism for guiding between the feed chain pinching mechanisms, each of the pinching mechanisms, and a pinching body for pinching the harvested culm between the endless body in the corresponding transport mechanism, And a biasing member for biasing the pinching body toward the corresponding endless body, wherein the inheritance guide mechanism cooperates with the endless body in the second auxiliary transporting mechanism to form a transport path for the harvested culm. And a biasing member that biases the guide body toward the endless body, and the feed chain guide mechanism cooperates with the feed chain to form a transport path for the harvested culm. A combine harvester having a guide body and a biasing member that biases the guide body toward the feed chain, wherein the stock-base pinching mechanism is arranged sequentially from the upstream side to the downstream side in the transport direction. Any one of the vertical pinching mechanism, the auxiliary pinching mechanism, the inheritance guide mechanism, the feed chain guide mechanism, and the feed chain pinching mechanism, or the pinching body or guide body in the guide mechanism. Detection sensor for detecting the amount of movement of the pinching mechanism, and the downstream side for detecting the amount of movement of the pinching body or the guide body in the other pinching mechanism or guide mechanism on the downstream side in the transport direction from the one pinching mechanism or guide mechanism. A detection sensor, and a control device for recognizing a grain culm transport state based on detection values of the upstream detection sensor and the downstream detection sensor, the control device, of the upstream detection sensor and the downstream detection sensor There is provided a combine configured to detect a grain culm transport time between the upstream detection sensor and the downstream detection sensor based on a detection value, and to recognize a grain culm transport state from the grain culm transport time .

Preferably, the control device, if the detection value detected by the downstream side detection sensor does not become the same detection value as the detection value detected by the upstream side detection sensor a predetermined time before, the upstream side detection It is determined that there is a delay in the transportation of grain culm between the sensor and the downstream detection sensor.

According to the combine of the first aspect of the present invention, the control device is the first pinching mechanism of the plurality of cutting pinching mechanisms and the feed chain pinching mechanism arranged from the upstream side to the downstream side in the grain culm transport direction. The detection value of the upstream side detection sensor which detects the movement amount of the pinching body in, and the movement amount of the pinching body in the second pinching mechanism located downstream of the first pinching mechanism in the grain culm transport direction are detected. It is configured to detect the grain culm transport time between the upstream side detection sensor and the downstream side detection sensor based on the detection value of the downstream side detection sensor, and to recognize the grain culm transport state from the grain culm transport time. Therefore, it is possible to effectively perform early detection and advance detection of the grain culm transport clogging in the inherited portion located between the first pinching mechanism and the second pinching mechanism with respect to the grain culm transport direction, and as a result, It is possible to effectively prevent breakage of the transport mechanism due to clogging of the grain culm, and effectively prevent deterioration of work efficiency due to work for removing the grain culm from clogging.

Further, according to the combine according to the second aspect of the present invention, the control device includes the stock pinching mechanism, the vertical pinching mechanism, the auxiliary pinching mechanism, and the inheritance guide arranged from the upstream side to the downstream side in the grain culm transport direction. The detection value of the upstream side detection sensor for detecting the movement amount of the pinching body or the guide body in any one of the pinching mechanism or the guide mechanism among the mechanism, the feed chain guide mechanism and the feed chain pinching mechanism; The upstream detection sensor and the above-mentioned upstream detection sensor based on the detection value of the downstream detection sensor that detects the movement amount of the pinching body or the guide body in the other pinching mechanism or the guide mechanism on the downstream side in the transport direction from the pinching mechanism or the guide mechanism. Since the grain culm transport time with the downstream side detection sensor is detected and the grain culm transport state is recognized from the grain culm transport time , one pinching mechanism or guide mechanism in the grain culm transport direction is provided. And, it is possible to effectively perform early detection and pre-detection of grain culm transport clogging at the inherited portion located between the other pinching mechanism or the guide mechanism, and as a result, the transport mechanism of the grain culm caused by clogging of the grain culm can be effectively detected. It is possible to effectively prevent breakage, and it is possible to effectively prevent deterioration of work efficiency due to work for removing clogging of grain culms.

FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a plan view of the combine. FIG. 3 is a schematic diagram of transmission of the combine. FIG. 4 is a side view of the harvesting device in the combine. FIG. 5 is a plan view of the mowing device. FIG. 6 is a transmission schematic diagram of the reaping device. FIG. 7 is a plan view of the vertical transport mechanism and the vertical transport pinching mechanism in the combine, showing a state in which the vertical transport pinching body of the vertical transport pinching mechanism is closest to the endless body of the vertical transport mechanism. Shows. FIG. 8 is a plan view of the vertical transport mechanism and the vertical transport pinching mechanism, showing a state in which the grain culm transport amount has started to increase. FIG. 9 is a plan view of the vertical transport mechanism and the vertical transport pinching mechanism, showing a state in which the grain culm transport amount is stable at a predetermined amount. FIG. 10 is a block diagram of a control device in the combine. FIG. 11A is a timing chart showing an example of a changed state of the detection value of the left stock pinching sensor when the grain culm transport amount is increased. Fig. 11(b) shows that the grain culm is stably conveyed from the position of the left stock source pinching mechanism to the position of the vertical transport pinching mechanism when the amount of grain culm is increased at the timing shown in Fig. 11(a). 8 is a timing chart showing a change state of the detection value of the vertical pinch detection sensor in the case where the vertical pinching detection sensor is operated. Fig. 11(c) shows that when the grain culm transport amount increases at the timing shown in Fig. 11(a), grain culm transport clogging occurs between the position of the left stock source pinching mechanism and the position of the vertical transport pinching mechanism. It is a timing chart which shows the change state of the detection value of a vertical pinch detection sensor when it is about to occur, or when there is a risk that a grain culm conveyance jam will occur. FIG. 12 is a side view in the vicinity of an upstream end portion in the transport direction of the feed chain transport mechanism in the combine.

Hereinafter, preferred embodiments of the combine according to the present invention will be described with reference to the accompanying drawings.
1 to 3 show a side view, a plan view and a transmission schematic diagram of a combine 1 according to the present embodiment, respectively.

As shown in FIGS. 1 and 2, the combine 1 is of a self-removing type.
That is, the combine 1 includes a traveling machine body 10, a traveling device 20 such as a pair of left and right traveling crawlers connected to the traveling machine body 10, an engine 25 mounted on the traveling machine body 10, and the engine 25 to The transmission 30, which is inserted in a traveling system transmission path to the traveling crawler 20, a driving unit 40 mounted on the traveling machine body 10, a mowing unit 100 connected to the front of the traveling machine body 10, and the mowing unit. A threshing device 400 for threshing the cut culms cut by 100 and a grain tank 50 for storing the grains produced by the threshing device 400 are provided.

As shown in FIGS. 1 and 2, the operation unit 40 is arranged at the front of the traveling machine body 10 and on one side in the machine body width direction.
In the present embodiment, the one side and the other side in the machine width direction mean the right side and the left side, respectively, when facing the forward direction of the combine 1.

The driver 40 has a driver's seat 40a on which a driver can sit and various operation members arranged near the driver's seat 40a.
The operation members include a turning operation member 41 such as a steering column, a main speed change operation member 42, an auxiliary speed change operation member 43, and a work clutch operation member 44 for turning on and off the threshing clutch and the reaping clutch.

As shown in FIGS. 1 and 2, the engine 25 is supported by the traveling machine body 10 in a space below the driving unit 40.

The transmission 30 is configured to change the rotational power operatively input from the engine 25 and output the rotational power to the traveling device 20.

Specifically, as shown in FIG. 3, the transmission 30 is rotatably driven by the engine 25 by a transmission case 31 supported by the traveling machine body 10 and a transmission case 31 rotatably supported by the transmission case 31 about an axis. And a transmission mechanism (not shown) for shifting the rotational power input via the transmission input shaft 32.

The transmission mechanism is, for example, a main transmission device 35 (see FIG. 10 below) such as a hydraulic continuously variable transmission (HST) that performs a continuously variable transmission in response to an operation on the main transmission operation member 42 by a driver, and A sub-transmission device (not shown) such as a gear-type transmission device that rotatably inputs rotational power from the main transmission device 35 and that performs multi-stage shifting in response to an operation on the sub-transmission operation member 43 by the operator. obtain.

4 to 6 show a side view, a plan view and a transmission schematic diagram of the reaping device 100, respectively.
The mowing device 100 includes a mowing frame 110 supported by the traveling machine body 10 so as to be rotatable around a mowing rotation axis line 100X along the machine body width direction.

As shown in FIGS. 4 and 5, the mowing frame 110 includes a mowing input case 111 supported by a mowing stand 15 provided on the traveling machine body 10 so as to be rotatable around a mowing rotation axis 100X, and the mowing input. A vertical transmission case 112 extending forward from the case 111, a horizontal transmission case 113 extending in the machine width direction at a front end portion of the vertical transmission case 112, and an upward direction extending from an end portion of the horizontal transmission case 113. The pulling up vertical transmission case 115 and the pulling up horizontal transmission case 117 extending from the upper end of the pulling up vertical transmission case 115 in the machine width direction are provided.

The elevation position of the mowing device 100 can be adjusted by an elevation hydraulic cylinder device 90 (see FIG. 1) arranged between the traveling machine body 10 and the vertical transmission pipe 112.

In the present embodiment, the mowing frame 110 is further composed of a plurality of weeding frames 114 extending forward from the lateral transmission case 113 and arranged in parallel in the machine width direction at a predetermined interval. A vertical support frame that extends obliquely forward and upward from the grass frame 114 and an end of the horizontal transmission case 113 on the opposite side of the pulling vertical transmission case 115 so as to be substantially parallel to the pulling vertical transmission case 115 ( (Not shown).
The pull-up lateral transmission case 117 is connected to the pull-up vertical transmission case 115 and the upper and lower support frames.

The mowing device 100 further includes a grass body 125 supported by the mowing frame 110, a grain culm raising device 130, a scraping device 135, a cutting blade device 140, and a plurality of mowing/conveying mechanisms 150.

The combine 1 according to the present embodiment is four-row cut.
Therefore, the five weeding frames 114 are provided, and the weed body 125 is supported by each of the five weeding frames 114.

The grain culm raising device 130 causes an uncut grain culm, and as shown in FIGS. 2, 4 and 5, a raising case 131 and the raising case 131 that is endlessly rotationally driven. And a pull-up tine 132 supported by.
The raising case 131 is supported by the raising lateral transmission case 117 in a standing state behind the grass body 125.

The scraping device 135 is configured to scrape the stock root side of the uncut grain culm erected by the grain culm raising device 130 to the rear side.

As described above, the combine 1 according to the present embodiment is for cutting four rows.
Therefore, as shown in FIG. 5 and FIG. 6, the scraping device 135 includes a pair of left and right star wheels 136L for scraping the stocker side of two left-sided grain culms introduced from the two left-side raising cases 131. And a pair of left and right scraping belts 137L, and a pair of right and left star wheels 136R and a pair of right for scraping the right side of the two crops of grain stalks introduced from the two cases of right side pulling case 131. And a take-in belt 137R.

The cutting blade device 140 is for cutting the root of the uncut grain culm in the field, and has a clipper-type cutting blade that reciprocates in the machine width direction and in the machine width direction.
In the present embodiment, the cutting blade device 140 raises the stock of the uncut grain culm which is erected by the pull-up tine 132 and the stock of which is scraped backward by the star wheel 136 and the scraping belt 137. It is arranged below the star wheel 58136 and the scraping belt 137 so as to be cut.

The plurality of mowing and conveying mechanisms 150 transfer the mowing grain culms inherited from the grain culm raising device 130 and the scraping device 135 to the feed chain conveying mechanism 420 of the threshing device 400.

Specifically, the plurality of mowing and conveying mechanisms 150 are a stock yuan conveying mechanism 160 that conveys backward the stocks of the cut culms that are inherited from the grain culm raising device 130 and the scraping device 135, and the stock maker. A vertical transport mechanism 200 that transports the stock of the harvested grain culm inherited from the transport mechanism 160 to the rear, and first and second auxiliary that transports the stocked plant of the harvested grain culm from the vertical transport mechanism 200 to the feed chain transport mechanism 420. It includes transport mechanisms 250(1) and 250(2).

In the present embodiment, as shown in FIG. 5 and the like, the stock-source transport mechanism 160 has a left-sided strip located on the left side among a plurality of strips (4 strips in the illustrated embodiment) that can be cut by the combine 1. (In the illustrated form, the left two lines) Mowing the left crop base transporting mechanism 160L that conveys the crop roots of the crop culm diagonally to the right and the right side strip (the two right lines in the illustrated form) It includes a right stock-source transporting mechanism 160R that transports the grain stalk stockers diagonally leftward and rearward.

As shown in FIGS. 5 and 6, the left stock source transport mechanism 160L includes a drive shaft 161L, a drive sprocket provided on the drive shaft 161L, a driven shaft, and a driven sprocket provided on the driven shaft. , The left stock source endless body 165L wound around the drive sprocket and the driven sprocket.

The right stock transfer mechanism 160R includes a drive shaft 161R, a drive sprocket provided on the drive shaft 161R, a driven shaft, a driven sprocket provided on the driven shaft, and the drive sprocket and the driven sprocket. It has a rotated right stock source endless body 165R.

The vertical transport mechanism 200 is carried by the left stock source transport mechanism 160L and the right stock source transport mechanism 160R, respectively, and inherits the merged stocks of the harvested culms to the feed chain transport mechanism 420 diagonally upward and rearward. Carry towards.

The vertical transport mechanism 200 includes a drive shaft 201, a drive sprocket provided on the drive shaft 201, a driven shaft 202, a driven sprocket provided on the driven shaft 202, and the drive sprocket and the driven sprocket. It has a vertically conveyed endless body 205.

Each of the first and second auxiliary transport mechanisms 250(1) and 250(2) includes a drive shaft, a drive sprocket provided on the drive shaft, a driven shaft, and a driven sprocket provided on the driven shaft. And an auxiliary conveyance endless body 255 wound around the drive sprocket and the driven sprocket.

In the present embodiment, as shown in FIG. 5 and the like, the plurality of mowing and conveying mechanisms 150 further convey the tip end side of the mowing grain culm inherited from the grain culm raising device 130 and the scraping device 135 rearward. It has a tip transporting mechanism 170.

The tip transport mechanism 170 is a left tip transport mechanism 170L that transports the tip side of the harvested culm to which the stock source is transported by the left stock source transport mechanism 160L backward, and a stock source by the right stock source transport mechanism 160R. It has a right tip transport mechanism 170R that transports the tip side of the harvested culm to the rear.
Each of the tip transport mechanisms has a tine that is endlessly rotationally driven.

As shown in FIG. 5, the mowing device 100 further includes a plurality of mowing and pinching mechanisms that cooperate with the plurality of mowing and conveying mechanisms 150, respectively.

The plurality of mowing and pinching mechanisms are the left stock base sandwiching mechanism that cooperates with the left stock base transporting mechanism 160L, the right stock base transporting mechanism 160R, the vertical transporting mechanism 200, and the first auxiliary transporting mechanism 250(1), respectively. It has a hooking mechanism 180L, a right stock base pinching mechanism 180R, a vertical transport pinching mechanism 210, and a first auxiliary transport pinching mechanism 260.
The corresponding transport mechanism and pinching mechanism transport the harvested culm in a sandwiched state in cooperation with each other.

Here, a specific configuration of the plurality of mowing and pinching mechanisms will be described by taking the vertical transport pinching mechanism 210 as an example.
The other mowing and pinching mechanisms 180L, 180R, and 260 have substantially the same configuration as the vertical transport and pinching mechanism 210. Therefore, the description of the vertical transport and pinching mechanism 210 will be omitted. It is also applied to the hooking mechanism 180L, 180R, 260.

FIG. 7 shows an enlarged plan view of the vertical transport mechanism 200 and the vertical transport pinching mechanism 210.
As shown in FIG. 7, the vertical transport pinching mechanism 210 has a vertical length in the transport direction D of the endless body 205 so that the mowing grain culm can be held between the vertical transport pinching mechanism 210 and the corresponding endless body 205. The carrying rod 212 and a support rod 220 extending in a direction in which the endless body 205 is positioned in a plane in which the endless body 205 is positioned in a state of supporting the vertical carrying pinched body 212 on the tip end side. And a biasing body for supporting the support rod 220 so as to be movable in the axial direction, and a biasing force for the support rod 220 so that the vertical conveyance sandwiching body 212 is pressed toward the corresponding endless body 205. 230 with members.

In the present embodiment, as shown in FIG. 7, the support rod 220 includes an upstream side support rod 220(1) and a downstream side support rod respectively arranged on the upstream side and the downstream side with respect to the transport direction D of the harvested culm. It has a rod 220(2).

Therefore, the urging member 230 includes the upstream urging member 230(1) and the downstream urging member 230(1) for urging the upstream and downstream support rods 220(1), 220(2) toward the endless body 205, respectively. It has a biasing member 230(2).

Specifically, a receiving plate 221 is fixed to each of the upstream and downstream support rods 220(1) and 220(2).
The upstream and downstream biasing members 230(1) and 230(2) have their base ends engaged with a support plate 241 fixed to the support 240 and their front ends fixed to the corresponding support rod 220. The corresponding support rod 220 is biased toward the endless body 205.

In the present embodiment, each of the upstream-side and downstream-side support rods 220(1), 220(2) is in a direction orthogonal to the plane in which the corresponding endless body 205 is located (in FIG. 7, with respect to the paper surface). The vertical conveyance sandwiching body 212 is supported so as to be swingable around a swing shaft 220X along the vertical direction).

With such a configuration, the vertical conveyance sandwiching body 212 is in contact with the endless body 205 in a state in which it can be inclined with respect to the endless body 205 according to the amount of grain culm conveyed by the vertical conveyance mechanism 200. Let go.

That is, when the grain culm transport amount is small, the vertical transport pinching body 212 is brought close to the endless body 205 by the urging force of the vertical transport urging member 230.
Note that FIG. 7 shows a state in which the vertical conveyance sandwiching body 212 is closest to the endless body 205.

On the other hand, when the transport amount of the cut grain culm is increased, first, the upstream side in the transport direction of the vertical transport pinching body 212 is pushed by the increased grain culm in a direction away from the endless body 205, and the vertical transport pinch is moved. The shell 212 is inclined with respect to the transport direction D of the endless body 205 (see FIG. 8).

In this state, as shown in FIG. 8, the amount of movement of the upstream side support rod 220(1) away from the endless body 205 is larger than the amount of movement of the downstream side support rod 220(2) from the endless body 205. It is larger than the amount of separation.

After that, as the increased grain culm is transported, the vertical transport pinching body 212 is separated from the endless body 205 by a distance corresponding to the transport amount of the cut grain culm in a posture substantially parallel to the endless body 205. (See FIG. 9).
In this state, as shown in FIG. 9, the amount of movement (separation distance) of the upstream side support rod 220(1) from the endless body 205 and the amount of movement of the downstream side support rod 220(1) from the endless body 205. Is substantially the same as the movement amount (separation distance).

Then, when the transport amount of the cut grain culm decreases, the upstream and downstream support rods 220(1), 220(2) are urged by the urging forces of the upstream and downstream urging members 230(1), 230(2). ) Is pushed in the direction of approaching the endless body 205, and the vertical conveyance sandwiching body 212 approaches the endless body 205 and returns to the state shown in FIG. 7.

In the beginning of the decrease in the amount of the cut grain culm conveyed, the vertical conveyance sandwiching body 212 first has an inclined posture in which the upstream side in the conveying direction is closer to the endless body 205 than the downstream side in the conveying direction, and thereafter, the The endless body 205 is in a state of being substantially parallel to the transport direction D and is in a state of being close to the endless body 205 as a whole.

As shown in FIGS. 1 to 3, the threshing device 400 includes a handling barrel 410 that is rotatably driven in a handling chamber formed by a machine frame that is erected on the traveling machine body 10, and a harvesting mechanism 150. A feed chain transport mechanism 420 that inherits the root of the grain culm and conveys the cutting grain culm to the rear in a state where the tip side of the grain culm is rushed into the handling chamber, and the grain removed from the harvested grain culm by the handling barrel 410. An oscillating sorting mechanism 430 for performing a sorting process, a karakoh fan 440 for supplying sorting air to the oscillating sorting mechanism 430, and a process for reprocessing the grain removed by the handling cylinder 410. The cylinder 450, a sorting material transport mechanism for transporting the sorting material sorted by the swing sorting mechanism 430, and a discharge for discharging the dust removed from the grain removal by the swing sorting mechanism 430 to the outside of the machine. And a dust fan 480.

As shown in FIG. 3, the handling barrel 410 includes a handling barrel shaft 411 driven by the power operatively transmitted from the engine 25, and a handling barrel body supported by the handling barrel shaft 411 so as not to rotate relative to each other. And have.

FIG. 11 is a side view of the feed chain transport mechanism 420 in the vicinity of the upstream end in the transport direction.
As shown in FIG. 11, the combine 1 according to the present embodiment is provided with a feed chain pinching mechanism 900 that cooperates with the feed chain transport mechanism 420.

The feed chain transport mechanism 420, in cooperation with the feed chain pinching mechanism 900, sandwiches and transports the stock of the harvested grain culm inherited from the harvesting transport mechanism 150.
The tip end side of the harvested culm, the stock side of which is sandwiched and conveyed by the feed chain transport mechanism 420 and the feed chain pinching mechanism 900, is thrust into the handling chamber and undergoes threshing processing by the handling barrel 410.

As shown in FIGS. 3 and 11, the feed chain transport mechanism 420 includes a drive shaft 421 operatively connected to the threshing input shaft 560, a drive sprocket (not shown) provided on the drive shaft 421, It has a driven shaft 422, a driven sprocket (not shown) provided on the driven shaft 422, and a feed chain 425 wound around the drive sprocket and the driven sprocket.

The feed chain pinching mechanism 900 has a predetermined length along the conveying direction of the feed chain 425 so that the cut culm can be held between the corresponding feed chain 425 which is an endless body. And a support rod 910 extending in a direction in which the feed chain 425 is positioned in a plane in which the feed chain 425 is located in a state in which the feed chain support 902 is supported on the distal end side. , An FC pinch support 930 that supports the support rod 910 so as to be movable in the axial direction, and the support rod 910 that presses the feed chain pinch body 902 toward the feed surface of the feed chain 425. And a biasing member 920 for biasing.

In the present embodiment, the feed chain pinching mechanism 900 includes the plurality of support rods 910 arranged in order in the conveying direction of the harvested culm and the plurality of support rods urging the plurality of support rods 920. And a biasing member 920.
In FIG. 11, among the plurality of support rods 910, a support rod 910 positioned on the most upstream side in the cutting grain culm transport direction and one urging member 920 that urges the support rod 910 are illustrated. ..

Each of the plurality of support rods 910 supports the feed chain holding body 902 so as to be swingable around a swing shaft 910X along a direction orthogonal to a plane where the feed chain 420 is located.

The rocking/sorting mechanism 430 is configured to perform specific gravity sorting on the grain-removed grains taken out by the handling cylinder 410 and leaked from the nets arranged below the handling chamber.

As shown in FIG. 3, the rocking/sorting mechanism 430 is rocked by the rocking/sorting drive shaft 431 driven by the power operatively transmitted from the engine 25 and the rocking/sorting drive shaft 431. And an oscillating sorting body.

The swing selection main body may include a feed pan, a chaff sheave connected to the rear of the feed pan, a straw rack connected to the rear of the chaf sheave, and a Glensieve disposed below the chaff sheave. ..

The Karato fan 440 is driven by the Karato shaft 441 driven by the power operatively transmitted from the engine 25 and the Karato shaft 441, and is pulled forward and downward and rearward with respect to the swing selection mechanism 430. It has a main body of Kara Minoh fan that supplies the sorting wind.

The processing cylinder 450 is supported by the processing cylinder shaft 451 driven by the power operatively transmitted from the engine 25 and the processing cylinder shaft 451 so as not to be rotatable relative to the processing cylinder shaft 451 in a processing chamber communicated with a rear portion of the handling chamber. And the processing cylinder main body.

The sorted matter transport mechanism is a first conveyor mechanism 461 disposed in the first trough that aggregates grains (first items such as refined grains) sorted from grain removal by the swing sorting mechanism 430, Lifted grain conveyor mechanism 462 that conveys the first product sent by the first conveyor mechanism 461 into the Glen tank 50, and second one that aggregates a mixture of grain and straw (second product) from the grain removal. It has a second conveyor mechanism 465 arranged in the gutter, and a second reduction conveyor mechanism 470 for returning the second object sent by the second conveyor mechanism 465 to the sorting start end side of the rocking sorting body. ing.

The dust-exhaust fan 480 is driven by the dust-exhaust shaft 481 driven by the power operatively transmitted from the engine 25, and is driven by the dust-exhaust shaft 481 to suck the dust in the rear part of the swing selection mechanism 430. And a dust-exhaust fan main body for discharging to the outside of the machine.

Next, the transmission structure of the combine 1 will be described mainly with reference to FIGS. 3 and 6.
Rotational power from the engine 25 is transmitted to the transmission input shaft 32 via a traveling system transmission mechanism 500 that forms a traveling system transmission path, is changed in speed by the transmission mechanism, and is transmitted to a drive axle of the traveling device 20. It
Reference numeral 505 in FIG. 3 is a main clutch provided in the traveling system transmission mechanism 500.

Rotational power synchronized with the vehicle speed is transmitted to the reaping device 100.
That is, the transmission 30 has a mowing PTO shaft 35 that outputs rotational power that is synchronized with the vehicle speed, and the rotational power of the mowing PTO shaft 35 forms a mowing power transmission path through the mowing transmission mechanism 510. It is transmitted to the reaping input shaft 520 which is inserted and supported by the reaping input case 111.
Note that reference numeral 515 in FIGS. 3 and 6 is a reaping clutch.

The reaping input shaft 520 is operatively connected to a vertical transmission shaft 522 inserted and supported in the vertical transmission case 112 via a bevel gear train and operatively connected to an upper transmission mechanism 524 via a bevel gear train.

The upper transmission mechanism 524 operationally transmits the rotational power transmitted from the mowing input shaft 520 to the right tip transport mechanism 170R and the first auxiliary transport mechanism 250(1).

The vertical transmission shaft 522 is operatively connected to a first lower drive shaft 526(1) inserted in and supported by the horizontal transmission case 113 via a bevel gear train, and also connected to a lower transmission mechanism 528 via the bevel gear train. Operatively connected.

The lower transmission mechanism 528 transmits rotational power from the vertical transmission shaft 522 to the vertical transport mechanism 200 and the right stock source transport mechanism 160R.

In the lateral transmission case 113, in addition to the first lower drive shaft 526(1), a second lower drive shaft 526(2) arranged coaxially with the first lower drive shaft 526(1), A bevel gear train 527 that operatively connects the first and second lower drive shafts 526(1) and 526(2) is housed.

The first lower drive shaft 526(1) is operatively connected to the cutting blade device 140.
The second lower drive shaft 526(2) is operatively connected to a pull-up transmission vertical axis 530 inserted and supported in the pull-up vertical transmission case 115.

The pull-up transmission vertical axis 530 is operatively connected to the pull-up lateral transmission shaft 532 that is inserted and supported in the pull-up lateral transmission case 117, and is also operatively connected to the left transmission mechanism 534 through a bevel gear train.

The left transmission mechanism 534 operatively transmits rotational power from the pull-up transmission vertical axis 530 to the left stock source transport mechanism 160L and the left tip transport mechanism 170L.

The raising lateral transmission shaft 532 is operatively connected to the raising tine 135, the star wheel 136, and the take-in belt 137.

Rotational power that is not synchronized with the vehicle speed is transmitted to the threshing device 400.
That is, as shown in FIG. 3, the rotational power from the engine 25 is operatively transmitted to the threshing input shaft 560 via the threshing system transmission mechanism 550 forming the threshing system transmission path.
A reference numeral 555 in FIG. 3 is a threshing clutch provided in the threshing system transmission mechanism 550.

The threshing input shaft 560 is operatively connected to the handling barrel shaft 411 and the processing barrel shaft 451 via a threshing drive mechanism 562.

The threshing input shaft 560 is further via a transmission mechanism, the Karato shaft 441, the first conveyor mechanism 461, the fried conveyor mechanism 462, the second conveyor mechanism 465, the second reduction conveyor mechanism 470, the The swing selecting mechanism 480 is operatively connected to the swing shaft 481, the dust collecting shaft, the feed chain transport mechanism 420, and the second auxiliary transport mechanism 250(2).

Reference numeral 490 in FIG. 3 is a straw cutter that shreds the straw left in the swing selection mechanism 480, and is driven by the rotational power transmitted from the threshing input shaft 560.

Further, the threshing input shaft 560 is also operatively connected to the reaping input shaft 520 via a power pouring clutch 575, and by connecting the power pouring clutch 575, the engine can be operated without the transmission 30. The rotary power from 25 is transmitted to the mowing device 100 so that the mowing device 100 can be driven at a constant speed regardless of the traveling speed of the combine 1.

Rotational power from the engine 25 is further transmitted through the grain tank transmission mechanism 580 in which the grain discharge clutch 585 is inserted, the bottom conveyor 590 in the grain tank 50, the vertical conveyor 592 in the vertical auger cylinder, and The operation is also transmitted to the discharge conveyor 594 in the horizontal auger cylinder.

Here, the control structure of the combine 1 will be described.
FIG. 10 shows a block diagram of the control device 600 in the combine.
As shown in FIG. 10, in the present embodiment, the control device 600 has a plurality of controllers such as a main unit controller 601 and an engine controller 602.

Sensors and actuators are electrically connected to the controllers 601 and 602, respectively, and the controllers 601 and 602 are electrically connected to each other via a CAN communication bus 605.

Each of the controllers 601 and 602 includes an arithmetic unit (hereinafter referred to as a CPU) including a control arithmetic unit that executes arithmetic processing based on signals input from the various sensors and the like, and a ROM that stores a control program, control data, and the like. It includes an EEPROM in which set values and the like are stored in a state where they are not lost even when the power is turned off and the set values and the like are rewritable, and a RAM and the like which temporarily holds data generated during the calculation by the calculation unit. And a storage unit.

The control device 600 performs, as the output control of the engine 25, normal control for operating the engine speed changing actuator so that the engine speed becomes a set speed by the engine speed setting operation member 46 that is manually operated. It is configured to run.

Specifically, as shown in FIG. 10, the combine 1 includes an engine rotation speed setting operation member 46 such as an accelerator dial, and an operation side engine rotation speed sensor 46a for detecting an operation position of the engine rotation speed setting operation member 46. The fuel injection device 80 acts as the engine speed changing actuator, and the operating side engine speed sensor 80a for detecting the engine speed.

As shown in FIG. 10, in the present embodiment, the fuel injection device 80 includes a fuel supply pump 82 that sucks fuel from a fuel tank 81 via a filter (not shown), and a fuel supply pump 82 that pumps the fuel. It has a common rail 85 for storing the stored fuel in a pressure-accumulated state, and a plurality of injectors 86 for injecting the pressure-accumulated fuel in the common rail 85 into each cylinder of the engine 250.
Reference numeral 85a in FIG. 10 is a pressure sensor for detecting the internal pressure of the common rail 85.

In the normal control, the control device 600 operates the injector 86 by using the set rotation speed detected by the operation side engine rotation speed sensor 46a as the target rotation speed of the engine rotation speed.

Specifically, in the control device 600, control data indicating the relationship between the engine speed and the injector control amount (fuel injection amount) is stored in advance in a storage unit such as a ROM. Controls the operation of the injector 86 using the control data.

That is, the control device 600 inputs the operation position of the engine rotation speed setting operation member 46 such as an accelerator dial from the operation side engine rotation speed sensor 46a to recognize the target engine rotation speed, and is calculated using the control data. Whether the actual engine speed detected by the engine speed sensor 80a matches the target engine speed by operating the injector 86 so as to inject a fuel injection amount according to the target engine speed. The injector 86 is controlled so that the two coincide with each other.

In the present embodiment, an HST is provided as the main transmission device 35.
Although not shown, the HST is a hydraulic pump operatively driven by the engine 25, a hydraulic motor fluidly connected through a pair of hydraulic oil lines, and at least one of the hydraulic pump and the hydraulic motor. Is provided with an output adjuster such as a movable swash plate that changes the volume of the output shaft, and a control shaft that tilts the output adjuster, and the rotational speed of the hydraulic motor is obtained by rotationally driving the control shaft around the axis. Is to be changed.

The combine 1 according to the present embodiment has a main shift actuator 610 such as a hydraulic servo mechanism that generates power for rotating the control shaft about its axis.

In such a configuration, the control device 600 controls the output rotation speed of the HST detected by the operating-side shift sensor (vehicle speed sensor) 610a to be a speed corresponding to a manual operation on the main shift operating member 42 such as the main shift lever. Therefore, the operation control of the main shift actuator 610 is performed.

Reference numeral 42a in FIG. 10 is an operation side shift sensor for detecting the operation position (operation direction and/or operation amount) of the main speed change operation member 42.

Further, reference numeral 36 in FIG. 10 is a turning HST that functions as a turning drive mechanism.
The output state of the turning HST 36 is changed by a turning actuator 620 such as a hydraulic servo mechanism.

The control device 600 detects the operation position of the turning operation member 41 by the operation side turning sensor 41a, and the output rotation speed of the turning HST 36 detected by the operation side turning sensor 620a is the operation position of the turning operation member 41. The operation control of the turning actuator 620 is performed so that the speed corresponding to the above is obtained.

Further, the control device 600, based on signals from the mowing switch 44a and the threshing switch 44b, which detect whether the work clutch operating member 44 is located at the mowing position and the threshing position, respectively, based on signals from the mowing actuator 630 and the threshing actuator 640. Is operated to engage and disengage the reaping clutch 515 and the threshing clutch 555.
Further, the control device 600 operates the grain discharge actuator 650 based on a signal from the sensor 48a that detects the operation state of the grain discharge operation member 48 to engage/disengage the grain discharge clutch 585.

The combine 1 according to the present embodiment has the following configuration in order to effectively pre-detect the transport state of the harvested grain culm, in particular, the transport clogging of the harvested grain culm at the inherited portion between the plurality of transport mechanisms. I have it.

That is, the combine 1 is at least an upstream for detecting the amount of movement of the pinching body in one of the plurality of mowing and pinching mechanisms 180L, 180R, 210, 260 and the feed chain pinching mechanism 900. A side detection sensor 700U and a downstream side detection sensor 700D that detects the amount of movement of the pinching body in another pinching mechanism located downstream in the grain culm transport direction from the pinching mechanism described above are provided.

In the present embodiment, as shown in FIG. 10, the combine 1 is provided with a plurality of pinching mechanisms corresponding to each of the plurality of cutting and pinching mechanisms 180L, 180R, 210, 260 and the feed chain pinching mechanism 900. It has a detection sensor.

That is, the combine 1 detects the moving amount of the left stock source pinching detection sensor 710L that detects the moving amount of the pinching body of the left stock source pinching mechanism 180L, and the moving amount of the pinching body of the right stock source pinching mechanism 180R. Right stock base pinching detection sensor 710R for detecting, vertical pinching detection sensor 712 for detecting the amount of movement of the pinching body 212 of the vertical transport pinching mechanism 210, and movement of the pinch body of the first auxiliary transport pinching mechanism 260. It has a first auxiliary pinching detection sensor 714 for detecting the amount and a feed chain pinching detection sensor 716 for detecting the movement amount of the pinching body 902 of the feed chain pinching mechanism 900.

Here, a specific configuration of the vertical pinch detection sensor 712 will be described.
Note that the plurality of pinching detection sensors have substantially the same configuration, and the following description regarding the vertical pinching detection sensor 712 also applies to other pinching detection sensors.

In the present embodiment, the vertical pinching detection sensor 712 includes a first vertical pinching detection sensor 712(1) that detects an axial movement amount of the upstream side support rod 220(1), and the downstream side support. It has a second vertical pinching detection sensor 712(2) for detecting the axial movement amount of the rod 220(2).

Specifically, as shown in FIGS. 7 to 9, each of the first and second vertical pinching detection sensors 712(1), 712(2) has a base end portion of the corresponding endless body 205. A detection arm 722 supported by the support 240 so as to be rotatable about a rotation axis along a direction orthogonal to both the transport direction D and the corresponding axial directions of the support rods 220(1) and 220(2); The sensor main body 725 detects a rotation angle of the detection arm 722 around the rotation axis.

An elongated hole extending in the axial direction of the detection arm 722 is formed on the tip side of the detection arm 722, and an engagement pin engaged with the elongated hole is formed on the support rods 220(1) and 220(2). By this, the detection arm 722 rotates about the rotation axis according to the amount of axial movement of the corresponding support rod 220(1), 220(2).

The sensor body 725 is arranged so as to detect the rotation angle of the detection arm 722 around the rotation axis.
In the present embodiment, the sensor body is a potentiometer.

Instead of this, the first and second vertical pinching detection sensors 712(1), 712(2) are provided on the corresponding support rods 220(1), 220(2) of a magnetic linear scale or the like. It is also possible to have a sensor body that detects the amount of axial movement.

As shown in FIG. 10, the first and second vertical pinching detection sensors 712(1), 712(2) of the vertical pinching detection sensor 712 are electrically connected to the control device 600, and The control device 600 inputs the detection values of the first and second vertical pinching detection sensors 712(1) and 712(2) at every predetermined sampling timing, and based on the detection values, the upstream side support rod 220( 1) and the axial position of the downstream side support rod 220(2) are individually recognized.

In addition, in this Embodiment, as shown in FIG. 10, the said left stock element pinching detection sensor 710L detects 1st and each moving amount of the conveyance direction upstream and downstream of the corresponding pinching rod. The second left stock source pinching detection sensors 710L(1) and 710L(2) are included, and the right stock source pinching detection sensor 710R indicates the amount of movement of the corresponding pinching rods on the upstream side and the downstream side in the transport direction. Each of the first and second right stock clamp detection sensors 710R(1) and 710R(2) for detecting is included, and the first auxiliary clamp detection sensor 714 is the upstream side and the downstream side of the corresponding clamp bar in the transport direction. The feed chain pinch detection sensor 716 includes an upstream first auxiliary pinch detection sensor 714(1) and a downstream side first auxiliary pinch detection sensor 714(2) that detect the amount of movement of each side. It includes first and second feed chain pinching detection sensors 716(1) and 716(2) that detect the amount of movement of the feed chain pinching rod 902 on the upstream side and the downstream side in the transport direction, respectively.

Here, by the control device 600, the left stock base pinching detection sensor 710L is used as the upstream side detection sensor 700U and the vertical pinching detection sensor 712 is used as the downstream side detection sensor 700D. A method for recognizing the cut culm transport state will be described.

The control device 600 sets the first and second left stock yuan pinching detection sensors 710L(1), 710L(2) and the first and second vertical pinching detection sensors 712(1) at predetermined sampling timings. , 712(2), and the detected values are input.

For example, assuming that the amount of grain culm conveyed is stable in a substantially constant state, the upstream side detection sensor 700U (in this example, the first and second left stock base pinching detection sensors 710L(1), 710L(2 )) changes in a substantially constant state, and the detection values of the downstream side detection sensors (in this example, the first and second vertical pinching detection sensors 712(1), 712(2)) are also substantially constant. The state changes.
In this case, the control device 600 determines that the grain culm transport state is in a stable state.

In addition to the grain culm conveyance state, the control device 600 includes the first and second left stock yuan pinching detection sensors 710L(1), 710L(2) and the first and second vertical pinching detection sensors. Based on the detection value of one or both of 712(1) and 712(2), the grain culm transport amount can be recognized.

That is, in the control device 600, data indicating a relationship between the detection values of the first and second left stock yuan pinching detection sensors 710L(1) and 710L(2) and the grain culm transport amount, and/or Data indicating the relationship between the detection values of the first and second vertical pinching detection sensors 712(1) and 712(2) and the grain culm transport amount is stored in advance, and the control device 600 is configured to control the first And the detection values from the second left stock squeezing detection sensors 710L(1), 710L(2) and the first and second vertical scissors detection sensors 712(1), 712(2) are applied to the data. Then, the amount of grain culm transported at that time can be recognized.

Next, a case where the grain culm transport amount is increased from A to B will be described with reference to FIG. 11.
11(a) and 11(b) are change states of the detection values of the left stock base pinching detection sensor 710L and the vertical pinching detection sensor 712 when the grain culm transport amount is increased from A to B, respectively. 3 is a timing chart showing
When the grain culm transportation amount increases from A to B, as shown in FIG. 11A, the left stock base pinching detection sensor 710L (in the present embodiment, the first and second left stock pinching pins). The detection values of the detection sensors 710L(1) and 710L(2)) change from a detection value a1 according to the grain culm transport amount A to b1 according to the grain culm transport amount B at a certain timing t1.

Here, a grain culm that has passed through the position of the left stock source pinching detection mechanism 710L provided with the left stock source pinching detection sensor 710L has the vertical transport pinching mechanism 210 provided with the vertical pinching detection sensor 712. When the time required to be transported to the position is Δt, the vertical pinching detection sensor 712 (in the present embodiment, the first and second vertical pinching detection sensors 712(1), 712(2)). 11(b), as shown in FIG. 11(b), at the timing t2 when a time Δt has elapsed from the timing t1 when the detection value of the left stock base pinching detection sensor 710L became b1, the grain culm transport amount A Changes from the detection value a2 corresponding to the above to the detection value b2 corresponding to the grain culm transport amount B.
In this state, the control device 600 determines that the grain culm transport state is in a stable state when the grain culm transport amount is increased from A to B.

On the other hand, from the timing t1 at which the detection value of the left stock source pinching detection sensor 710L (the first and second left stock source pinching detection sensors 710L(1), 710L(2)) changes from a1 to b1. At time t2 when the time Δt has elapsed, it is assumed that the detection value of the vertical pinching detection sensor 712 does not change from a2 to b2 (for example, as shown in FIG. 11C, If the detection value of the vertical pinching detection sensor 712 at the timing t2 is c smaller than b2), the control device 600 causes the control unit 600 to transfer the left stock source transfer mechanism 160L to the vertical transfer mechanism 200. It is judged that the grain culm transport is about to be clogged, or that there is a risk.
In this case, the control device 600 can notify the driver to that effect by, for example, notification means such as an indicator light and an alarm.

According to the combine 1 having such a configuration, the conventional combine recognizes the transport state of the entire grain culm transport route based on the grain culm transport amount detected by any one of the transport mechanisms (for example, the vertical transport mechanism 200). In comparison, it is possible to effectively perform early detection and advance detection of grain culm transport clogging at the inherited portions of the plurality of transport mechanisms adjacent to each other in the grain culm transport direction.

In particular, when the grain culm transport amount B is within the allowable range for the combine 1, it is difficult to detect the grain culm transport clogging at the inherited portion between the transport mechanisms in the conventional configuration, According to the combine 1 according to the present embodiment, it is possible to effectively detect that the grain culm transport clogging is about to occur or the grain culm transport clogging is likely to occur in the inherited portion between the transport mechanisms.

Next, a case where the grain culm transport amount decreases from B to A will be described.
In this case, the detection values of the first and second left stock source pinching detection sensors 710L(1), 710L(2) change from b1 to a1 at the timing t2 when the grain culm transport amount decreases.

At this time, when there is no problem in the transportation of the grain culm, the detection values of the first and second vertical pinching detection sensors 712(1), 712(2) are after the time Δt from the timing t2. , B2 to a2.

When the detection values of the first and second vertical pinching detection sensors 712(1), 712(2) change from b2 to a2 after a lapse of time Δt from timing t2, the control device 600 determines When the grain culm transport amount is reduced from B to A, it is determined that the grain culm transport state is in a stable state.

On the other hand, in the case where the detection values of the first and second vertical conveyance pinching detection sensors 712(1), 712(2) do not change from b2 to a2 despite the passage of time Δt from the timing t2. The control device 600 determines that some problem has occurred in the transport path from the left stock source transport mechanism 160L to the vertical transport mechanism 200.
In this case, the control device 600 can notify the driver to that effect by, for example, notification means such as an indicator light and an alarm.

In the above-mentioned example, the first and second left stock element pinching detection sensors 710L are used as the upstream detection sensor 700U, but instead of this, the first and second left stock element pinching detections. It is also possible to use the sensor 710L as the first upstream side detection sensor and use the first and second right stock base pinching detection sensors 710R as the second upstream side detection sensor.

In this case, the control device 600 is grasped by the grain culm conveyance state by the left stock source conveying mechanism 160L and the detection value of the second upstream side detection sensor which are grasped by the detection value of the first upstream side detection sensor. The upstream grain culm transport state is recognized based on the grain culm transport state by the right stock source transport mechanism 160R, and the downstream grain culm transport state and the downstream side grasped by the detection value of the downstream side detection sensor 700D are recognized. To recognize the grain culm transport state of the inherited portion between the confluence of the left stock source transport mechanism 160L and the right stock source transport mechanism 160R and the vertical transport mechanism 200 by comparing the grain culm transport state. You can

According to such a configuration, the entire amount of grain culm transported by the stock-source transport mechanism 160 is a target to be detected by the upstream detection sensor 700U.
Therefore, the grain culm transport state can be recognized more accurately.

As described above, in the present embodiment, each of the plurality of pinching detection sensors detects the axial movement amount of the upstream side support rod and the axial detection amount of the downstream side support rod. And a second detection sensor that operates.

Therefore, the control device 600 grasps the inclination of the corresponding sandwiching body based on the difference between the detection values of the first and second detection sensors, and sensitively detects the change in the grain culm transport amount based on this inclination. can do.

That is, when the grain culm transport amount changes in the increasing direction, as described above, first, the pinch body is moved to the endless body 205 so that the upstream side of the grain culm transport direction of the pinch body is separated from the corresponding endless body. Incline against.

Specifically, the downstream side support rod located downstream in the grain culm transport direction does not substantially move or moves only slightly, and the upstream side support rod located upstream in the transport direction has a corresponding attachment. It moves in the direction away from the endless body 205 against the biasing force of the biasing member (see FIG. 8).

Therefore, by detecting the difference between the detection values of the first and second detection sensors, it is possible to detect the inclination of the pinching body with respect to the endless body.

According to such a configuration, the catcher is configured to come into contact with and separate from the endless body in a parallel posture, and by detecting a parallel movement distance of the catcher with respect to the endless body, Compared to the conventional configuration that recognizes the change, it is possible to detect the change in the carry amount of the cut grain culm with high sensitivity and accuracy.

That is, as described above, in the present embodiment, the axial movement amount of the upstream side and downstream side support rods that are rotatably connected to the upstream side and the downstream side in the grain culm conveying direction of the pinching body are independent. It is possible to detect the disturbance (non-uniformity) of the grain culm transport amount distribution in the grain culm transport route, which is a sign that the grain culm is clogged, with high sensitivity and accuracy.

In addition, in the present embodiment, in addition to the inclination of the sandwiching body, the separation distance of the sandwiching body from the endless body 205 can also be detected.
That is, the control device 600 can grasp the distance between the endless body 205 and the pinching body based on the detection value of at least one of the first and second detection sensors, and It can be configured to recognize the grain culm conveyance amount based on the inclination and the separation distance of the pinching body.
According to this structure, the grain culm transportation state can be recognized more accurately.

Preferably, the control device 600 can reduce the traveling speed of the combine 1 based on the grain culm transport state.

That is, as described above, the control device 600 controls the rotational power output from the transmission to be the vehicle speed set by the engine speed setting operation member 46, the main transmission operation member 42, and the sub transmission operation member 43. The operation control of the engine 25, the main transmission 35, and the auxiliary transmission (hereinafter, referred to as normal control) is executed so that the rotation speeds can be adjusted accordingly.

On the other hand, when the control device 600 determines that the grain culm transport amount grasped based on the detection value of the upstream side detection sensor 700U or the downstream side detection sensor 700D exceeds a predetermined threshold value, or the upstream side When it is determined that the grain culm transportation jam is about to occur or may occur based on the detection values of the detection sensor 700U and the downstream side detection sensor 700D, the control device 600 is revealed by the normal control. It may be configured to execute a load avoidance control that controls the operation of the engine 25 and/or the main transmission 35 so as to be lower than the vehicle speed.
Note that controlling the vehicle speed to be lower than the vehicle speed that is expressed by the normal control includes a mode in which the engine 25 is forcibly stopped.

In addition, in the present embodiment, the control device 600 controls the pinching body of one of the plurality of mowing and pinching mechanisms 180L, 180R, 210, 260 and the feed chain pinching mechanism 900. Based on the amount of movement and the amount of movement of the pincers in the other pinching mechanism on the downstream side of the one pinching mechanism in the grain culm conveying direction, it is configured to recognize the conveyed state of the cut grain culm. The present invention is not limited to such a form, and instead of or in addition to the movement amount of the pinching body in the pinching mechanism, the movement amount of the guide body in the guide mechanism provided in the combine 1 can be changed. It is also possible to use it to recognize the transport state of the harvested culm.

That is, as shown in FIGS. 5 and 12, the combine 1 further includes an inheritance guide mechanism 940 that cooperates with the second auxiliary transport mechanism 250(2) and the second auxiliary transport mechanism 250(2). A feed chain guide mechanism 960 is provided for guiding the harvested culm sent by the feed chain between the feed chain transport mechanism 420 and the feed chain pinching mechanism 900.

As shown in FIG. 5, the inheritance guide mechanism 940 includes an inheritance guide body 942 that extends in the conveyance direction of the endless body so as to face the endless body in the second auxiliary conveyance mechanism 250(2).

The inheritance guide body 942 is swingable around a swing axis line 942X parallel to the drive shaft and the driven shaft of the second auxiliary transport mechanism 250(2).
The inheritance guide mechanism 940 further includes a biasing member (not shown) that biases the inheritance guide body 942 around the swing axis 942X toward the endless body.

In the inheritance guide mechanism 940, the inheritance guide body 942 rotates around the swing axis 942X against the urging force of the urging member as the amount of grain culm conveyed by the second auxiliary conveying mechanism 250(2) increases. And is swung in a direction away from the endless body of the second auxiliary transport mechanism.

Therefore, by detecting the swing angle of the inheritance guide body 942 around the swing axis 942X, it is possible to detect the grain culm transport state by the second auxiliary transport mechanism 250(2).

As shown in FIG. 12, the feed chain guide mechanism 960 includes a feed guide body 962 disposed to face the feed chain 425 on the upstream side of the feed chain transport mechanism 420 in the grain culm transport direction, and the feed guide on the tip side. A support rod 965 that extends in a direction in which the feed chain 425 is brought into contact with and separated from the conveying surface of the feed chain 425 while supporting the body 962, an FC guide support body 967 that supports the support rod 965, and the supply guide body 962 include the feed chain body 962. And a biasing member 969 that biases the support rod 965 so that the support rod 965 is pressed toward the transport surface 425.

As shown in FIG. 12, in the present embodiment, the FC guide support 697 is connected to the FC pinch support 930.
In the present embodiment, the support rod 965 has first and second support rods 965(1) and 965(2) located on the upstream side and the downstream side in the grain culm transport direction, respectively.

The FC guide support 967 is swingable around a swing axis 965X(1) parallel to the drive shaft 421 and the driven shaft 422 in the feed chain transport mechanism 420 at the base end of the first support rod 965(1). Supported by.

The second support rod 965(2) is supported by the FC guide support body 967 so as to be movable in the axial direction, and the tip end portion of the feed guide body 962 is driven by the drive shaft 421 and the driven shaft of the feed chain transport mechanism 420. Is connected so as to be rotatable about a rotation axis 965X(2) parallel to the.

As shown in FIG. 12, in the present embodiment, the biasing member 969 causes the second guide rod 965 (2) to move in a direction in which the supply guide body 962 is pressed toward the transport surface of the feed chain 425. ).

In the feed chain guide mechanism 960, the harvested culm transported by the feed chain transport mechanism 420 separates the supply guide body 962 from the feed chain 425 against the biasing force of the biasing member 969. Move in the direction.

The feed chain guide mechanism is detected by detecting the swing angle of the first support rod 965(1) around the swing axis 965X(1) or the amount of axial movement of the second support rod 965(2). The amount of grain culm transported through 960 can be detected.

In such a configuration, the stock element pinching mechanisms 180L and 180R, the vertical pinching mechanism 210, the auxiliary pinching mechanism 260, the inheritance guide mechanism 940, and the feed, which are sequentially arranged from the upstream side to the downstream side in the transport direction. The upstream side detection sensor is a sensor for detecting the amount of movement of the pinching mechanism or the guide body of any one of the chain guide mechanism 960 and the feed chain pinching mechanism 900 from the corresponding endless body. And a sensor that detects the amount of movement of the pinching body or the guide body in the other pinching mechanism or the guide mechanism on the downstream side in the transport direction from the one pinching mechanism or the guide mechanism on the downstream side. The same effect as in the present embodiment can be obtained by using it as a detection sensor.

1 combine 20 traveling device 25 engine (drive source)
35 Main Transmission (Transmission)
42 Main shift operation member (vehicle speed setting member)
43 Sub shift operation member (vehicle speed setting member)
46 Engine speed setting operation member (vehicle speed setting member)
100 Mowing device 160L Left stock transfer mechanism (cutting mechanism)
160R Right stock source transport mechanism (cutting transport mechanism)
165L Left stock original endless body 165R Right stock original endless body 180L Left stock original pinching mechanism (cutting pinching mechanism)
180R Right stock former pinching mechanism (cutting pinching mechanism)
200 Vertical transfer mechanism (cutting transfer mechanism)
205 Vertical transport endless body 210 Vertical transport pinching mechanism (cutting pinching mechanism)
212 Longitudinal conveyance sandwiching body 230(1) Upstream side urging member 230(2) Downstream side urging member 250(1) First auxiliary conveyance mechanism (cutting conveyance mechanism)
250(2) Second auxiliary transport mechanism (cutting transport mechanism)
255 Auxiliary transport endless body 260 1st auxiliary transport pinching mechanism (cutting pinching mechanism)
400 Threshing Device 420 Feed Chain Conveying Mechanism 425 Feed Chain 600 Control Device 700U Upstream Side Detection Sensor 700D Downstream Side Detection Sensor 710L(1) First Left Stock Root Entrapment Detection Sensor 710L(2) Second Left Stock Origin Entrapment Detection Sensor 710R(1) First right stock clamp detection sensor 710R(2) Second right stock clamp detection sensor 712(1) First vertical clamp detection sensor 712(2) Second vertical clamp detection sensor 714( 1) Upstream side first auxiliary pinching detection sensor 714(2) Downstream side first auxiliary pinching detection sensor 716(1) First feed chain pinching detection sensor 716(2) Second feed chain pinching detection sensor 900 feed Chain holding mechanism 902 Feed chain holding body 920 Energizing member 940 Transfer guide mechanism 942 Transfer guide body 960 Feed chain guide mechanism 962 Supply guide body 969 Energizing member

Claims (6)

A mowing device that cuts grain culms and conveys the harvested grain culm to the rear and a harvesting grain culm that inherits the harvested grain culm from the reaping device, and a threshing device that performs the threshing process while conveying to the rear, and the mowing device has a conveying direction. from an upstream side and a plurality of cutting transfer mechanism is placed to the downstream side, and a plurality of cutting transfer mechanism having an endless body, each is rotated in the endless, each cooperates of the plurality of cutting transfer mechanism And having a plurality of cutting and pinching mechanism for sandwiching the cutting culm between the corresponding endless body, the threshing device, a feed chain transport mechanism having a feed chain that is endlessly rotationally driven, It has a feed chain pinching mechanism for holding a cut culm in cooperation with the feed chain transporting mechanism, and each of the plurality of cutting pinching mechanisms and the feed chain pinching mechanism has a corresponding endless body. A combiner having a sandwiching body sandwiching the harvested culm between and a biasing member for biasing the sandwiching body toward a corresponding endless body,
An upstream detection sensor that detects the amount of movement of the pinching body in the first pinching mechanism of the plurality of cutting pinching mechanisms and the feed chain pinching mechanism, and a downstream of the first pinching mechanism in the grain culm transport direction. Downstream detection sensor that detects the amount of movement of the pinching body in the second pinching mechanism located on the side, and a control device that recognizes the grain culm transport state based on the detection values of the upstream side detection sensor and the downstream side detection sensor. With and
The control device detects the grain culm transport time between the upstream side detection sensor and the downstream side detection sensor based on the detection values of the upstream side detection sensor and the downstream side detection sensor, and from the grain culm transport time. A combine characterized by recognizing a grain culm transportation state. The control device, when the detection value detected by the downstream side detection sensor does not become the same detection value as the detection value detected by the upstream side detection sensor a predetermined time before, the upstream side detection sensor and the Combine of claim 1, wherein that you determined that delay of culms transport between the downstream sensor occurs. The plurality of mowing and transporting mechanisms, a left stock source transporting mechanism that transports the stocks of the left-sided crop culms on the left side in the combine traveling direction, and a right-side cropping culm on the right side in the combine traveling direction. A right stock source transport mechanism for transporting the stock rearward, and a vertical transport mechanism for transporting the harvested culm joined from the left stock source transport mechanism and the right stock source transport mechanism,
The plurality of mowing and pinching mechanisms are a left stock source pinching mechanism, a right stock source pinching mechanism and a vertical pinching mechanism that cooperate with each of the left stock source transport mechanism, the right stock source transport mechanism and the vertical transport mechanism. Including the mechanism,
One or both of the left stock source pinching mechanism and the right stock source pinching mechanism are the first pinching mechanism, and the vertical pinching mechanism is the second pinching mechanism. The combine according to claim 1 or 2. A drive source, a traveling device, a transmission device inserted in a traveling system transmission path for transmitting rotational power from the driving source to the traveling device, and a vehicle speed setting member for setting a vehicle speed,
The reaping device is configured so that rotational power synchronized with the vehicle speed is transmitted from the transmission device,
The control device performs a normal control that controls the operation of the drive source and/or the transmission so that the rotational power output from the transmission has a rotational speed corresponding to the vehicle speed set by the vehicle speed setting member. On the other hand, if it is determined that a delay in the transportation of grain culm occurs between the upstream side sensor and the downstream side sensor, the vehicle speed is lower than the vehicle speed expressed by the normal control. The combine according to any one of claims 1 to 3 , wherein load combine control is performed to control the operation of the drive source and/or the transmission. A mowing device that cuts grain culms and conveys the harvested grain culm to the rear and a harvesting grain culm that inherits the harvested grain culm from the reaping device, and a threshing device that performs the threshing process while conveying to the rear, and the mowing device has a conveying direction. upstream from placed strains based transfer mechanism downstream, vertical transport mechanism, and a first auxiliary transport mechanism and the second auxiliary transport mechanism, and stock based Kyo扼mechanism cooperating with the strain based transport mechanism, the longitudinal The threshing device has a vertical clamping mechanism that cooperates with a transport mechanism, an auxiliary clamping mechanism that cooperates with the first auxiliary transport mechanism, and an inheritance guide mechanism that cooperates with the second auxiliary transport mechanism. A feed chain transport mechanism, a feed chain pinching mechanism that cooperates with the feed chain transport mechanism, and a cutting culm sent by the second auxiliary transport mechanism to the feed chain transport mechanism and the feed chain pinching mechanism. And a feed chain guide mechanism that guides the harvesting grain culm between the endless body and the endless body in the corresponding transport mechanism, and the sandwiching mechanism corresponds to the sandwiching body. An urging member for urging toward an endless body, wherein the inheritance guide mechanism cooperates with the endless body in the second auxiliary conveyance mechanism to form a conveyance path for a harvested culm, and a guide body, A guide body for urging the guide body toward the endless body, wherein the feed chain guide mechanism cooperates with the feed chain to form a conveyance path for a harvested culm, and the guide. A combine having a biasing member that biases the body toward the feed chain,
Of the stock source pinching mechanism, the vertical pinching mechanism, the auxiliary pinching mechanism, the inheritance guide mechanism, the feed chain guide mechanism, and the feed chain pinching mechanism, which are sequentially arranged from the upstream side to the downstream side in the transport direction. An upstream detection sensor for detecting the amount of movement of the pinching body or the guide body in any one of the pinching mechanism or the guide mechanism;
A downstream side detection sensor for detecting the amount of movement of the pinching body or the guide body in the other pinching mechanism or the guide mechanism on the downstream side in the transport direction from the one pinching mechanism or the guide mechanism ,
A control device for recognizing a grain culm transport state based on detection values of the upstream side detection sensor and the downstream side detection sensor ,
The control device detects the grain culm transport time between the upstream side detection sensor and the downstream side detection sensor based on the detection values of the upstream side detection sensor and the downstream side detection sensor, and from the grain culm transport time. A combine characterized by recognizing a grain culm transportation state. The control device, when the detection value detected by the downstream side detection sensor does not become the same detection value as the detection value detected by the upstream side detection sensor a predetermined time before, the upstream side detection sensor and the The combine harvester according to claim 5, wherein the combine is determined to be delayed with respect to the downstream detection sensor.

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