JP2019176798A - Combine - Google Patents

Abstract

To solve problems in which a conventional threshing incompletion phenomenon occurs often due to continuation of a shallow threshing state.SOLUTION: A combine comprises: a reaping device 4 on a front side of a travel unit 2; a thresher 3 on an upper side of the travel unit 2, in which grain culm reaped by the reaping device 4 is held and transported and delivered to a grain culm supply/transport device 16. The combine further comprises a threshing depth adjuster 15, and a threshing depth adjustment by the threshing depth adjuster 15 is performed by automatically driving a threshing depth adjustment motor 20 which actuates the threshing depth adjuster 15 based on a detection result of an ear tip position of the grain culm by a first ear tip sensor 23 and a second ear tip sensor 24 of a depth sensor S. When a threshing depth position detection part 22 for detecting a threshing depth adjusted by the threshing depth adjuster 15 continuously detects a deep threshing position for a prescribed period, it is determined that the threshing depth sensor S is in a detection failure state, and the output to the threshing depth adjustment motor 20 is automatically stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a combine.

Conventionally, the treatment depth adjustment speed by the treatment depth adjustment device to the grain supply and transfer device is made slower than the adjustment action speed to the deep handling side and continued to the deep handling side. A configuration in which a value obtained by subtracting a predetermined amount from the detected value is used as a limit value to the deep handling side when the detection means of the handling depth position detection unit does not change for a predetermined time due to the action is known (Patent Document 1).

JP 2002-27820 A

In the above known example, when the detection means of the handling depth position detecting unit does not change for a predetermined time due to the continuous action to the depth handling side due to the output to the depth handling side by the sensing of the handling depth sensor, the detection value is obtained from this detected value. There is a problem that unhandled phenomena frequently occur due to the continuous shallow handling state because the fixed value is the limit value to the deep handling side.
In the present application, the automatic control of the depth-adjusting device is devised to prevent the unhandled phenomenon due to the continuous shallow handling state and to control the appropriate handling depth.

The invention of claim 1 is provided with a reaping device 4 in front of the traveling device 2, a threshing device 3 provided above the traveling device 2, and cereals supplying cereals to a handling room at the side of the threshing device 3. In a combine that is provided with a straw supply / conveying device 16, holds and transports the grain straw harvested by the harvesting device 4, and delivers it to the rice straw supply / conveyance device 16, A handling depth adjusting device 15 that adjusts the position is provided, and the handling depth adjustment by the handling depth adjusting device 15 is performed by the handling depth sensor S arranged at intervals in the slimming direction of the cereal to be conveyed. Based on the detection result of the tip position of the culm by the first tip sensor 23 and the second tip sensor 24, the handling depth adjustment motor 20 that operates the handling depth adjustment device 15 is automatically driven and is configured. Output to the shallow handling side is performed by the handling depth adjusting motor 20 In spite of this, when the handling depth position detection unit 22 that detects the handling depth adjusted by the handling depth adjusting device 15 continues to detect the depth handling position for a predetermined time, the handling depth is detected. It is determined as a detection failure state of the depth sensor S, and the combine is characterized in that the output to the handling depth adjustment motor 20 is automatically stopped.
In the invention according to claim 2, the handling depth position detection unit 22 detects the depth handling position over a predetermined period of time despite the fact that the handling depth adjustment motor 20 outputs to the shallow handling side. When the operation is continued, an output to the depth handling side is output to the handling depth adjustment motor 20 a set number of times, and when the detection result of the handling depth position detector 22 does not change regardless of this output, The combine according to claim 1, wherein the output to the handling depth adjusting motor 20 is automatically stopped.
In the invention of claim 3, the handling depth position detection unit 22 detects the depth handling position for a predetermined time despite the fact that the handling depth adjustment motor 20 outputs to the shallow handling side. When it continues, it determines with the detection failure state of the said 1st tip sensor 23, the output to the handling depth adjustment motor 20 is stopped automatically, and the output stop state to this handling depth adjustment motor 20 is The combine according to claim 2, wherein the combiner is configured to be released when the cereal sensor 30 arranged on the upper side of the cereal conveyance direction with respect to the handling depth sensor S stops detecting the presence of the conveyed cereal. is there.
According to the fourth aspect of the present invention, in the automatic control of the treatment depth by the treatment depth adjustment device 15, the adjustment range of the treatment depth by the treatment depth adjustment device 15 is a switch in the circuit to the treatment depth adjustment motor 20. The combine according to claim 1, claim 2, or claim 3, which is configured to be switchable at 31.
According to a fifth aspect of the present invention, a jumper 32 is provided in the circuit to the handling depth adjusting motor 20 in place of the switch 31, and the operating range of the handling depth adjusting motor 20 is switched by connecting and disconnecting the jumper 32. The combine according to claim 4.
The invention of claim 6 sets the operating range of the handling depth adjusting motor 20 to a plurality of ranges, and the plurality of operating ranges are automatically determined at the start of the cutting operation after the threshing clutch 33 is connected, and this determination is made. The combine according to claim 5, wherein the output to the handling depth adjusting motor 20 is controlled within a range not deviating from the operating range.
The invention according to claim 7 is the combine according to claim 6, wherein the automatic determination of the operating range of the handling depth adjusting motor 20 can be changed manually.

In the invention according to claim 1, the handling depth adjustment by the handling depth adjusting device 15 is performed by the first tip sensor 23 of the handling depth sensor S arranged at intervals in the slimming direction of the cereal to be conveyed. Based on the detection result of the tip position of the grain tip by the second tip sensor 24, the handling depth adjustment motor 20 that operates the handling depth adjustment device 15 is automatically driven to perform the handling depth adjustment motor. Although the output to the shallow handling side is performed in 20, the handling depth position detection unit 22 that detects the handling depth adjusted by the handling depth adjusting device 15 handles the depth for a predetermined time. When the position is continuously detected, it is determined that the handling depth sensor S is in a poor detection state, and the output to the handling depth adjustment motor 20 is automatically stopped. Due to false detection, the operator unexpectedly moves to the shallow side Continuing the output, it becomes extremely shallow handling, and the rear portion of the cereal supply and transport device 16 cannot pinch the cereal, causing a conveyance failure and clogging with the waste chain or cutter. Can be prevented.
In the invention according to claim 2, in addition to the effect of the invention according to claim 1, the handling depth adjustment motor 20 outputs the shallow handling side for a predetermined time despite being output to the shallow handling side. When the position detection unit 22 continues to detect the depth handling position, an output to the depth handling side is output to the handling depth adjustment motor 20 a set number of times. Regardless of this output, the depth handling position detection unit When there is no change in the detection result 22, the output to the handling depth adjusting motor 20 is automatically stopped, so that the operator may unexpectedly handle the shallowness unexpectedly due to misdetection of the handling depth sensor S. The output is continued to the extreme side, and the handling becomes extremely shallow, and the cereal supply / conveying device 16 is unable to pinch the cereal, causing a conveyance failure and clogging with the waste chain or cutter. Can be prevented.
In the invention according to claim 3, in addition to the effect of the invention according to claim 2, the handling depth adjustment motor 20 outputs the shallow handling side for a predetermined time despite being output to the shallow handling side. When the position detection unit 22 continues to detect the deep handling position, it is determined that the first tip sensor 23 is in a poor detection state, and the output to the handling depth adjustment motor 20 is automatically stopped. The configuration in which the output stop state to the depth adjustment motor 20 is canceled when the cereal sensor 30 disposed on the upper side in the cereal conveying direction than the handling depth sensor S no longer detects the presence of the conveyed cereal. As a result, it is impossible to pinch the cereals at the rear of the cereal supply and transport device 16 due to the false detection of the first tip sensor 23, preventing conveyance failure, and one step of the cutting operation is completed. To release.
In the invention of claim 4, in addition to the effect of the invention of claim 1 or claim 2 or claim 3, in the automatic control of the treatment depth by the treatment depth adjustment device 15, the treatment depth adjustment device 15 Since the working depth adjustment range can be switched by the switch 31 in the circuit to the working depth adjustment motor 20, the operating range of the treatment depth adjustment motor 20 can be changed, and the treatment depth control is performed. The range can be expanded.
In the invention of claim 5, in addition to the effect of the invention of claim 4, a jumper 32 is provided in the circuit to the handling depth adjusting motor 20 in place of the switch 31, and the jumper 32 is connected and disconnected. Since the operating range of the handling depth adjusting motor 20 is switched, in this embodiment, the operating range of the handling depth adjusting motor 20 is switched between the long bamboo shoot and the standard crop, and thus, the long working position is reached. It can be operated, and the operating range of the handling depth adjusting motor 20 can be extended to a long wall.
In the invention according to claim 6, in addition to the effect of the invention according to claim 5, the operating range of the handling depth adjusting motor 20 is set to a plurality of ranges, and the plurality of operating ranges are after the threshing clutch 33 is connected. Is automatically determined at the start of the cutting operation, and the output to the working depth adjustment motor 20 is controlled within a range that does not deviate from the determined working range. Therefore, the working range of the working depth adjustment motor 20 can be changed. , The handling depth control range can be expanded.
In the seventh aspect of the invention, in addition to the effect of the sixth aspect of the invention, since the automatic determination of the operating range of the handling depth adjusting motor 20 is configured to be manually changeable, the operability is improved. It is done.

The side view of a combine. The side view of a reaping device. FIG. Schematic of the power transmission mechanism of the combine. The side view and rear view of a handling depth adjustment means. The perspective view of the handling depth sensor vicinity. Flow diagram. The flowchart of other embodiment. The flowchart of other embodiment. The flowchart of other embodiment. The flowchart of other embodiment. The flowchart of other embodiment. The flowchart of other embodiment. The flowchart of other embodiment. The front view and partial top view of a threshing apparatus. The front view and side view of a threshing apparatus which omitted the gear case lower cover. The front view of a gear case lower cover, a side view, and the exploded view of a gear case lower cover. The front view and side view of other embodiment of a threshing apparatus. The front view and side view of other embodiment of a threshing apparatus. The side view of a handling cylinder.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine frame, 2 denotes a traveling device provided at a lower position of the aircraft frame 1, and 3 denotes a threshing apparatus provided at an upper position of the aircraft frame 1. 4 is a cutting device provided in front of the machine frame 1, 5 is a Glen tank for temporarily storing grains taken out from the threshing device 2 provided on the side of the threshing device 2, and 6 is a control unit. .
As an example of the mowing device 4, 10 is a weed body, 11 is a pulling device, 12 is a cutting blade, 13 is a front conveying device, 14 is a rear conveying device, and 15 is a conveying path that is conveyed by each conveying device. At the end of the handle depth adjusting device 15, a grain supply / conveying device (feed chain) 16 that supplies cereal to the threshing chamber (not shown) of the threshing device 2 is provided at the end of the handle depth adjusting device 15. In addition, a take-up transport device 17 for taking over the cereals is provided.

  The cereal supply and transport device 16 supplies cereals harvested by the reaping device 4 from the threshing supply port 18 of the threshing chamber (not shown) of the threshing device 3 and is threshed to the cereal discharge port of the threshing chamber. (The illustration is omitted) It is conveyed until it is discharged, but the configuration for conveying the cereals harvested by the reaping device 4 to the cereal supply and transportation device 16 is arbitrary, and is not limited to the configuration of this embodiment. The starting end portion of the grain supply / conveyance device 16 may face the end of the handling depth adjustment device 15, and the takeover conveyance device 17 of the embodiment is interposed between the treatment depth adjustment device 15 and the grain supply / conveyance device 16. This point is not a requirement.

The configuration of the handling depth adjusting device 15 is also arbitrary, and it is sufficient that the handling depth can be changed by changing the sandwiching position of the wheat straw supplied to the wheat straw supply and transport device 16. In the present embodiment, the base of the handling depth adjusting device 15 is attached to the vertical support frame 19 of the reaping device 4 so that the tip is vertically movable. Reference numeral 20 denotes a handling depth adjusting motor, 21 denotes a handling depth adjusting means (handling depth adjusting link) for moving the handling depth adjusting device 15 by the handling depth adjusting motor 20, and 22 denotes an actual handling depth adjusting device 15. A handling depth position detection unit (potentiometer) for detecting a handling depth position, 23 is a tip sensor of the handling depth sensor S, 24 is a stock sensor, and the tips of the second tip sensor 24 and the first tip sensor 23 At the intermediate position is an appropriate handling depth, and when both the first tip sensor 23 and the second tip sensor 24 are off, it is in a shallow handling state, and both the first tip sensor 23 and the second tip sensor 24 are on. In this case, it will be in a deep handling state.
In addition, in order to make an understanding easy in the figure, although the 2nd tip sensor 24 located in the stock | stock_stock side of a cereal grain from the 1st tip sensor 23 is displayed as a stock | stock source sensor, by this, a structure is shown. It is not limited.

  The handling depth control of the present application is to automatically control the tip position of the handling depth adjusting device 15 by the handling depth adjusting motor 20 so that the tip position is made constant according to the total length of the cereal. The treatment depth adjustment by the height adjusting device 15 is performed by adjusting the tip of the cereal by the first tip sensor 23 and the second tip sensor 24 of the handling depth sensor S arranged at intervals in the slimming direction of the conveyed culm. Based on the position detection result, the handling depth adjusting motor 20 for operating the handling depth adjusting device 15 is automatically driven, and the handling depth adjusting motor 20 outputs to the shallow handling side. In spite of being performed, when the handling depth position detection unit 22 that detects the handling depth adjusted by the handling depth adjusting device 15 continues to detect the depth handling position for a predetermined time, It is determined that the handling depth sensor S is in a detection failure state, and the handling depth is A configuration to stop the output of the section motor 20 automatically.

As a result, the false detection of the handling depth sensor S causes the operator to unexpectedly continue to output to the shallow handling side, resulting in extreme shallow handling, and at the rear part of the cereal supply and transfer device 16. It is possible to prevent cereals from being pinched and cause a conveyance failure and clogging with a waste chain or cutter.
That is, as shown in FIG. 7, when the handling depth position detection unit 22 continues to sense the handling from the reference position in step S4, the output to the handling depth adjustment motor 20 is stopped in step S5. It is.
Control or work after the output is stopped is optional. Normally, the operator stops the output, interrupts the work, and causes the abnormal state of the handling depth sensor S. After removing the weeds and weeds, resume the work.

When the handling depth position detection unit 22 continues to detect the depth handling position for a predetermined time despite the fact that the handling depth adjustment motor 20 outputs to the shallow handling side, the handling is performed. The output to the depth handling motor 20 is output to the depth adjustment motor 20 a set number of times, and if there is no change in the detection result of the handling depth position detector 22 regardless of this output, the output to the handling depth adjustment motor 20 is performed. The output is automatically stopped (FIG. 8).
As a result, the false detection of the handling depth sensor S causes the operator to unexpectedly continue output to the shallow handling side, resulting in an extremely shallow handling, and the cereals are fed behind the cereal supply and transport device 16. It is possible to prevent the occurrence of a conveyance failure without being pinched, and the occurrence of clogging with a waste chain or cutter.

When the handling depth position detecting unit 22 continues to detect the depth handling position for a predetermined time despite the fact that the handling depth adjustment motor 20 is outputting to the shallow handling side, The first tip sensor 23 is determined to be in a detection failure state, and the output to the handling depth adjustment motor 20 is automatically stopped. The output stop state to the handling depth adjustment motor 20 is more than the handling depth sensor S. It is set as the structure cancelled | released when the cereal sensor 30 arrange | positioned at the cereal conveyance direction upper side stops detecting presence of conveyance cereal (FIG. 9).
As a result, it is not possible to pinch the cereals at the rear of the cereal supply / transport device 16 due to erroneous detection of the first tip sensor 23, and the conveyance failure is prevented. To do.

That is, as shown in FIG. 9, when the treatment depth position detection unit 22 continues to sense depth treatment from the reference position in step S4, after stopping output to the treatment depth adjustment motor 20 in step S5, When the cereal sensor 30 is turned off in Step 6, the output stop state to the handling depth adjusting motor 20 is reset.
In the automatic handling depth control by the handling depth adjusting device 15, the adjustment range of the handling depth by the handling depth adjusting device 15 can be switched by a switch 31 in the circuit to the handling depth adjusting motor 20. (FIG. 10).
That is, according to the long crop, the standard crop, the short crop, and the target crop, the operating range of the handling depth adjustment motor 20 is switched by the switch 31 in the circuit to be regulated.
Thereby, the operating range of the handling depth adjusting motor 20 can be changed, and the handling depth control range can be expanded.
Switching by the switch 31 is performed by the operator visually recognizing the field crop.

Further, a jumper 32 is provided in the circuit to the handle depth adjusting motor 20 instead of the switch 31, and the operating range of the handle depth adjusting motor 20 is switched by connecting and disconnecting the jumper 32 (FIG. 11).
For this reason, in this embodiment, the operating range of the working depth adjustment motor 20 is switched to the long basket and the standard crop, thereby enabling the operation to the long working position and the working range of the working depth adjustment motor 20 to be increased. It can be extended to Nagatoro.
For example, when the combine is shipped, if the jumper 32 is provided in the circuit of the operating range of the handling depth adjusting motor 20 and the crop in the field is a long crop, the operating range of the handling depth adjusting motor 20 is left as it is. Can be extended to long bamboo shoots, and the depth of handling can be controlled corresponding to the long culm. Also, if the crop in the field is a standard crop, the circuit is shut off by removing the jumper 32, etc. Can be controlled.

Further, the operating range of the handling depth adjusting motor 20 can be switched by the jumper 32 when the crops in the field are replaced or when the crop conditions in the adjacent fields are different.
In addition, when the operating range of the working depth adjusting motor 20 is trimmed to an uncut shear and the operating frequency of adjusting the working depth is reduced for a certain period of time, the operating range of the working depth adjusting motor 20 is automatically switched. The upper and lower adjustment ranges are restricted, or the operating range of the handling depth adjustment motor 20 is maintained (FIG. 12).
Thereby, the change of the operating range of the handling depth adjustment motor 20 can be automated.
Further, the operating range of the handling depth adjusting motor 20 is set to a plurality of ranges, and the plurality of operating ranges are automatically determined at the start of the mowing operation after the threshing clutch 33 is connected, and the range that does not deviate from the determined operating range. Thus, the output to the handling depth adjusting motor 20 is controlled (FIG. 13).

In other words, the operating range of the handling depth adjusting motor 20 is set to a plurality of ranges, for example, short culm, standard and long culm, and this operational range is automatically determined at the start of the cutting operation after entering the threshing clutch 33 and does not deviate. The operating range of the depth adjusting motor 20 is automatically controlled within the range.
In this case, the automatic determination of the operating range of the handling depth adjusting motor 20 is configured to be manually changeable, and when the culm length setting is manually operated, the handling depth is automatically controlled in this operating range. It is set as the structure which transfers (FIG. 14).
Thereby, operability can be improved.

A gear case 36 is provided on the front plate 35 of the threshing device 3, and the gear case 36 is configured to transmit the driving rotation to the handling cylinder (not shown) of the threshing device 3 (FIG. 16). A front cover 37 covering the upper side of the gear case 36 is provided. Provided (FIG. 15). The front cover 37 surrounds the upper portion by a predetermined position of the upper portion of the gear case 36, and the upper front cover 38 has an inclined surface that rises after side view, and the lower cover lower front that surrounds the lower portion by the predetermined position of the gear case 36. The cover 39 is an inclined surface that is lowered after side view.
Thus, the cereal supply and transport device 16 smoothly guides the cereal supplied and transported from the cereal supply port 18 of the front plate 35 by the front cover 37, suppresses interference with the gear case 36, and the cereal supply and transport device 16 is improved.

That is, the rear end portion of the lower front cover 39 is positioned up to the front side of the upper side of the cereal supply port 18 of the front plate 35 so that grains and swarf flow from the upper front cover 38.
Thereby, it is prevented that grains and sawdust are accumulated on the front cover 37.
The left side portion of the lower front cover 39 in the airframe traveling direction is disposed lower than the upper edge of the grain supply port 18 (FIG. 18).
A gear case lower cover 40 is provided separately from the front cover 37 below the gear case 36.
The gear case lower cover 40 is formed so that its upper shape is along the lower surface shape of the gear case 36 at the front, and the lower surface shape of the gear case lower cover 40 is along the upper edge shape of the grain supply port 18 of the front plate 35. In addition, the side surface shape is formed to be inclined downward.

As a result, the cereal straw supplied and conveyed by the cedar supply and transport device 16 from the stalk supply port 18 of the front plate 35 is smoothly guided by the gear case lower cover 40, the interference with the gear case 36 is suppressed, and the cereal supply is performed. The conveyance of the conveyance device 16 is improved.
The gear case 36 includes a circular portion 43 that surrounds the periphery of the handling cylinder shaft (not shown) and a substantially linear straight portion 44 that surrounds a transmission shaft (not shown) that transmits rotation to the handling shaft. The gear case lower cover 40 formed and provided below the gear case 36 is divided into a left cover portion 45 positioned below the circular portion 43 and a right cover portion 46 positioned below the linear portion 44.
Thereby, manufacture and attachment of the gear case lower cover 40 are facilitated, and the lower part of the gear case 36 is surrounded to effectively suppress interference with the cereal.

That is, the lower portion of the circular portion 43 of the gear case 36 is located below the lower surface of the straight portion 44, and a step is generated between the circular portion 43 and the straight portion 44. While surrounding the lower part of 35, it also has the guide effect | action which guides the tip of a grain candy.
The gear case lower cover 40 has a right cover 46 fixed to the airframe fixing portion with a bolt or the like, and a left cover 45 is attached to the right cover 46 with a mounting member 47 such as a screw or nut. The left part of the part 45 is attached to the circular part 43 of the gear case 36 (FIG. 17).
Accordingly, it is not necessary to prepare a special stay or the like for attaching the gear case lower cover 40, and it is detachable from the airframe fixing portion and the gear case 36, thereby facilitating maintenance.

The circular portion 43 surrounding the periphery of the handling cylinder shaft of the gear case 36 is inclined upward after the side view, while the lower front cover 39 of the front cover 37 is inclined downward.
As a result, the front cover 37 surrounding the gear case 36 is configured so that the gear case 36 is inclined upward after the side view in order to incorporate the handling cylinder shaft and the transmission mechanism therefor, and the lower front cover 39 on the lower side of the front cover 37. Is formed with a downward slope, thereby suppressing interference with cereal grains and suppressing the accumulation of foreign matter.
That is, the lower front cover 39 of the front cover 37 is formed in a shape that is inclined downward toward the rear.
Thereby, even when the amount of corn straw transported by the corn straw supply / conveyance device 16 is large, the front cover 37 does not interfere.

The gear case lower cover 40 is positioned at least inside the left side of the circular portion 43 of the gear case 36 (FIGS. 15 and 17).
Thereby, the corn straw conveyance path by the corn straw supply conveyance apparatus 16 to the corn straw supply port 18 can be ensured widely, and the supply (intake) to the threshing apparatus 3 is made smooth.
In addition, the drooping cover 50 constituted by an elastic member provided in front of the gear case lower cover 40 described later is prevented from interfering with the gear case lower cover 40.
In front of the gear case lower cover 40, a dripping cover drooping cover 50 made of an elastic member is provided in a substantially vertical shape, and the cereal supply / conveyance device 16 side is inclined upward in the front view of the dripping cover 50, and The corner portion of the right side portion is formed in an arc shape.

Thereby, while the blowout cover 50 prevents the to-be-processed object from being blown out from the cereal supply port 18, the cereal can be transported smoothly, and damage to the sag cover 50 due to contact with the cereal is also suppressed.
Further, the gear case lower cover 40 is not provided in the grain supply port 18 on the grain stock side, and even if the drooping cover 50 attached to the front cover 37 is turned up rearward, it interferes with the gear case lower cover 40. Do not position.
As a result, the drooping cover 50 prevents the workpiece from being blown out from the cereal supply port 18 and interferes with the gear case lower cover 40 when taking the cereal on the tip side of the cereal supply port 18. To prevent.

FIG. 19 shows another embodiment of the threshing device 3, and a cover opening drive motor 56 that operates an opening mechanism of the upper cover 55 surrounding the upper portion of the threshing device 3 handling chamber (not shown) is disposed above the gear case 36. A cover 57 surrounding the cover opening drive motor 56 is provided, and the cover 57 is provided with a window 58 for exposing the cover opening drive motor 56.
Thereby, the opening mechanism of the upper cover 55 can be surrounded by the cover 57, and interference between the cover opening drive motor 56 and the cover 57 is prevented.
Further, since the cover 57 is inclined forwardly, soot and the like can be prevented from adhering and accumulating on the opening mechanism of the upper cover 55.

When the cover 58 is used for positioning when the cover 57 is attached, the cover 57 can be easily attached.
Further, it is preferable that the front cover 37 be formed of a flexible member such as a synthetic resin because interference with the opening mechanism of the upper cover 55 can be prevented.
Further, a part of the cover 57 is made to face above the joint of the front plate 35 and the upper cover 55 of the threshing device 3.
As a result, when the upper cover 55 is opened upward, soot and the like can be prevented from adhering and accumulating in the opening mechanism of the upper cover 55, and the operation of the opening mechanism of the upper cover 55 is made smooth.

Further, a motor surrounding cover (not shown) surrounding the portion of the cover opening drive motor 56 exposed above the cover 57 may be separately provided above the cover 57.
In the threshing apparatus 3, the handle barrel 60 is formed in a cylindrical shape, and the handle teeth 61 are provided on the outer periphery of the handle barrel 60. Each handle 61 is arranged in a plurality of rows spirally on the outer periphery of the handle barrel 60, and It is set as the structure which provides the low tooth-handling 61 in the middle of the arrangement | sequence of the tooth-handling 61 group arrange | positioned helically (FIG. 20).
Thereby, since the high tooth-handling 61 acts mainly at the time of normal work, the threshing load can be reduced, and the low tooth-handling 61 also acts at the time of high flow rate to prevent further threshing loss.
In this case, the tooth handling 61 is arranged in the latter half of the handling barrel 60 with a higher installation density, and the tooth handling 61 that increases is a lower tooth handling 61.

Thereby, while it is possible to reduce the bites in the transported culm by the tooth handling 61 with increased installation density, and since the increased tooth handling 61 is the lower tooth handling 61, an increase in the threshing load is suppressed.
In the combine having the above-described configuration, when a predetermined amount of kernels accumulates in the grain tank 5, the mowing and threshing operation is temporarily stopped, the machine body is stopped, and the kernel discharging operation is performed. At this time, the traveling device 2 is stopped. If the brake operation for operating the parking brake is not performed, a notification is given by a buzzer or a lamp.
As a result, it is possible to prevent the operator from overlooking the airframe that is moving at ultra-low speed, and the safety of the discharge operation can be improved.
In this notification, the grain discharging operation is disabled.
Thereby, it can respond also to the discharge | emission operation | work which disregarded alerting | reporting.

Further, when the grain discharge operation is performed, if the vehicle speed sensor (not shown) senses the vehicle speed, the grain discharge clutch operation is disabled, and when the discharge operation is performed, the engine is stopped. Also good.
Further, when the grain discharging operation is performed, notifying the parking brake but notifying by the notification means, and when the discharging operation is performed, the engine may be stopped.
In the combine of the above configuration, a positioning mechanism (airframe position information acquisition means) that receives GPS information and measures the position of the airframe provided at a predetermined position of the airframe, and the grains in the Glen tank 5 based on the positioning information by the positioning mechanism The position information acquisition means of the grain discharge grain discharge destination is provided, and the structure is configured to automatically guide to the discharge place.
Thereby, grain discharge workability | operativity can be improved.

The grain automatic discharge control is configured to start control by a full sensor provided in the Glen tank 5.
In the above case, when the aircraft is guided to the discharge position, the alignment of the discharge auger is performed manually.
Thereby, discharge operation | work can be performed rapidly.
The automatic discharge location guidance control uses a judgment criterion for starting guidance when the cutting / clutching clutch is disengaged.
In this case, even if the cutting / clutching clutch is engaged, if the culm sensor is off, it is used as a criterion for determining the guidance for starting the discharge location automatic guidance control.
Moreover, the said discharge location automatic guidance control is made into the judgment reference | standard of guidance start, when an airframe approaches the grain discharge destination more than a fixed distance.

In addition, the discharge location automatic guidance control is used as a criterion for determining the start of guidance when the speed of the airframe is below a certain speed.
Moreover, the said discharge location automatic guidance control alert | reports a body stop position with portable terminals, such as a tablet and a smart horn, or a body monitor.
In this case, the airframe stop position may be displayed as a numerical value of the distance between the airframe stop position and the discharge destination in addition to a graphic display such as a map.
The airframe stop position may be displayed as a line.

(Operation of the embodiment)
The present invention has the above-described configuration, and the machine body is run, the harvesting device 4 cuts the grain culm, and the threshing device 3 performs the threshing operation.
The cereals harvested by the cutting blade 12 of the reaping device 4 are conveyed and supplied to the cereal supply / conveyance device 16 by the conveying device, and the cereal supply / conveyance device 16 is supplied to the handling room of the threshing device 3 and threshed. However, the handling depth adjustment device 15 of the reaping device 4 adjusts the position of delivery to the grain supply / conveyance device 16 to adjust the handling depth and delivers it.
The handling depth adjustment by the handling depth adjusting device 15 is performed by driving the handling depth adjusting motor 20 that operates the handling depth adjusting means 21 by turning on / off the first tip sensor 23 and the second tip sensor 24. The handling depth position detection unit 22 detects the actual handling depth position by the handling depth adjustment means 21 and feeds back to the control unit.

  This handling depth control is to automatically control the handling depth adjusting device 15 so that the tip position is fixed according to the total length of the cereal, and the handling depth adjustment by the handling depth adjusting device 15 is carried by conveyance. Depth adjustment based on the detection result of the head position of the grain tip by the first tip sensor 23 and the second tip sensor 24 of the handling depth sensor S arranged at intervals in the slimming direction of the grain stem The handling depth adjusting motor 20 that operates the device 15 is automatically driven to perform the operation, and the handling depth is adjusted even though the handling depth adjusting motor 20 outputs to the shallow handling side. When the handling depth position detection unit 22 that detects the handling depth adjusted by the depth adjusting device 15 continues to detect the depth handling position for a predetermined time, it is determined that the handling depth sensor S is in a poor detection state. The output to the handling depth adjusting motor 20 is automatically stopped. Therefore, due to false detection of the handling depth sensor S, the operator unexpectedly continues output to the shallow handling side, resulting in extreme shallow handling, and the rear of the grain supply and transport device 16 It is possible to prevent the cereals from being pinched at the part, causing a conveyance failure and causing clogging with the waste chain or cutter.

That is, as shown in FIG. 7, when the handling depth position detection unit 22 continues to sense the handling from the reference position in step S4, the output to the handling depth adjustment motor 20 is stopped in step S5. It is.
Control or work after the output is stopped is optional. Normally, the operator stops the output, interrupts the work, and causes the abnormal state of the handling depth sensor S. After removing the weeds and weeds, resume the work.

  When the handling depth position detection unit 22 continues to detect the depth handling position for a predetermined time despite the fact that the handling depth adjustment motor 20 outputs to the shallow handling side, the handling is performed. The output to the depth handling motor 20 is output to the depth adjustment motor 20 a set number of times, and if there is no change in the detection result of the handling depth position detector 22 regardless of this output, the output to the handling depth adjustment motor 20 is performed. Output is automatically stopped, the operator will continue to output to the shallow handling side unexpectedly due to misdetection of the handling depth sensor S, resulting in extreme shallow handling. It is possible to prevent the cereals from being pinched behind the koji supply / conveying device 16, causing a conveyance failure and causing clogging in the waste chain or cutter.

  When the handling depth position detecting unit 22 continues to detect the depth handling position for a predetermined time despite the fact that the handling depth adjustment motor 20 is outputting to the shallow handling side, The first tip sensor 23 is determined to be in a detection failure state, and the output to the handling depth adjustment motor 20 is automatically stopped. The output stop state to the handling depth adjustment motor 20 is more than the handling depth sensor S. Since the cereal sensor 30 arranged on the upper side in the cereal conveying direction is configured to be released when the presence of the conveyed cereal is no longer detected, the cereal supply and transport device 16 due to erroneous detection of the first tip sensor 23 is used. While not being able to pinch the cereals at the rear, it prevents conveyance failure and completes one step of the cutting operation, and releases the control stop when the cutting is completed.

That is, as shown in FIG. 9, when the treatment depth position detection unit 22 continues to sense depth treatment from the reference position in step S4, after stopping output to the treatment depth adjustment motor 20 in step S5, When the cereal sensor 30 is turned off in Step 6, the output stop state to the handling depth adjusting motor 20 is reset.
In the automatic handling depth control by the handling depth adjusting device 15, the adjustment range of the handling depth by the handling depth adjusting device 15 can be switched by a switch 31 in the circuit to the handling depth adjusting motor 20. Therefore, according to the long crop, the standard crop, the short crop, and the target crop, the operating range of the handling depth adjustment motor 20 is switched by the switch 31 in the circuit to be regulated.
Thereby, the operating range of the handling depth adjusting motor 20 can be changed, and the handling depth control range can be expanded.

Further, a jumper 32 is provided in the circuit to the handling depth adjustment motor 20 in place of the switch 31, and the operating range of the handling depth adjustment motor 20 is switched by connecting and disconnecting the jumper 32. The operating range of the handling depth adjustment motor 20 is switched to the standard crop, thereby enabling operation to the long working position and extending the working range of the handling depth adjusting motor 20 to the long work.
For example, when the combine is shipped, a jumper 32 is provided in the circuit of the operating range of the handling depth adjusting motor 20, and when the crop in the field where the combine is sold is a long bamboo crop, the handling depth is adjusted as it is. The operating range of the motor 20 can be extended to a long culm, and the depth control corresponding to the long culm can be performed. When the field crop is a standard crop, the circuit is shut off by removing the jumper 32 or the like. It is possible to control the depth of handling based on standard crops.

Further, the operating range of the handling depth adjusting motor 20 can be switched by the jumper 32 when the crops in the field are replaced or when the crop conditions in the adjacent fields are different.
In addition, when the operating range of the working depth adjustment motor 20 is trimmed to an uncut chopstick and the state in which the adjusting operation frequency of the working depth adjustment is reduced continues for a certain time, the operating range of the working depth adjustment motor 20 is automatically switched. Since the upper and lower adjustment ranges are regulated or the operating range of the handling depth adjusting motor 20 is maintained, the change of the operating range of the handling depth adjusting motor 20 can be automated.

Further, the operating range of the handling depth adjusting motor 20 is set to a plurality of ranges, and the plurality of operating ranges are automatically determined at the start of the cutting operation after the threshing clutch 33 is connected, and the range not deviating from the determined operating range. Therefore, the operating range of the handling depth adjustment motor 20 is set to a plurality of ranges, for example, short 稈 / standard / long 稈, It is automatically determined at the start of the reaping operation after entering the threshing clutch 33, and the change of the operating range of the handling depth adjusting motor 20 is automatically controlled within a range that does not deviate.
In this case, the automatic determination of the operating range of the handling depth adjusting motor 20 is configured to be manually changeable, and when the culm length setting is manually operated, the handling depth is automatically controlled in this operating range. When the configuration is shifted, the operability can be improved.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Threshing device, 3 ... Traveling device, 4 ... Mowing device, 5 ... Glen tank, 11 ... Pulling device, 12 ... Cutting blade, 13 ... Front side conveying device, 14 ... Rear side conveying device, DESCRIPTION OF SYMBOLS 15 ... Handling depth adjustment apparatus, 16 ... Grain supply supply apparatus, 17 ... Succession conveyance apparatus, 18 ... Grain supply port, 19 ... Vertical support frame, 20 ... Handling depth adjustment motor, 21 ... Handling depth adjustment means , 22 ... treatment depth position detection unit, 23 ... first tip sensor, 24 ... second tip sensor (stock source side sensor), 30 ... grain sensor, 31 ... switch, 32 ... jumper, 33 ... threshing clutch, 35 ... front plate, 36 ... gear case, 37 ... front cover, 38 ... upper front cover, 39 ... lower front cover, 40 ... gear case lower cover, 43 ... circular part, 44 ... straight part, 45 ... left cover part, 46 ... Right cover part, 50 ... Drip cover 55 ... upper cover, 56 ... cover opening drive motor, 57 ... cover, 60 ... thresher, 61 ... 扱歯.

Claims (7)

  A reaping device (4) is provided in front of the traveling device (2), a threshing device (3) is provided above the traveling device (2), and cereals are placed in the handling room at the side of the threshing device (3). In the combine provided with the supply of the cereal supply and supply device (16) to supply, sandwiching and transporting the culm harvested by the reaping device (4), and delivering it to the cereal supply and transport device (16) A handling depth adjusting device (15) that adjusts the culm pinching position by the straw supply / conveying device (16) is provided, and the handling depth adjustment by the handling depth adjusting device (15) Depth adjusting device based on the detection result of the tip position of the grain tip by the first tip sensor (23) and the second tip sensor (24) of the handling depth sensor (S) arranged at intervals in the direction (15) The depth control motor (20) that activates the drive is automatically driven. A treatment depth position detection for detecting the treatment depth adjusted by the treatment depth adjustment device (15) even though the treatment depth adjustment motor (20) outputs to the shallow handling side. When the part (22) continues to detect the deep handling position for a predetermined time, it is determined that the handling depth sensor (S) is in a poor detection state, and the output to the handling depth adjustment motor (20) is automatically performed. Combines characterized in that they are configured to stop automatically.   The handling depth position detection unit (22) continued to detect the depth handling position for a predetermined time, even though the handling depth adjustment motor (20) is outputting to the shallow handling side. In this case, the output to the depth handling side is output a set number of times to the handling depth adjustment motor (20), and when the detection result of the handling depth position detector (22) does not change regardless of this output, The combine according to claim 1, wherein the output to the handling depth adjusting motor (20) is automatically stopped.   The handling depth position detection unit (22) continued to detect the depth handling position for a predetermined time, even though the handling depth adjustment motor (20) is outputting to the shallow handling side. In this case, it is determined that the first tip sensor (23) is in a poor detection state, the output to the handling depth adjustment motor (20) is automatically stopped, and the output to the handling depth adjustment motor (20) is stopped. The state is configured to be released when the cereal sensor (30) arranged on the upper side in the cereal conveyance direction with respect to the handling depth sensor (S) is no longer detected. Combine as described.   In the automatic control of the treatment depth by the treatment depth adjustment device (15), the adjustment range of the treatment depth by the treatment depth adjustment device (15) is changed to a switch in the circuit to the treatment depth adjustment motor (20) ( The combine according to claim 1, claim 2, or claim 3, which is configured to be switchable in 31).   In place of the switch (31), a jumper (32) is provided in the circuit to the handling depth adjusting motor (20), and the operating range of the handling depth adjusting motor (20) is set by connecting and disconnecting the jumper (32). The combine according to claim 4, which is configured to be switched.   The operating range of the handling depth adjusting motor (20) is set to a plurality of ranges, and the plurality of operating ranges are automatically determined at the start of the cutting operation after the threshing clutch (33) is connected, and from the determined operating range. 6. The combine according to claim 5, wherein the output to the handling depth adjusting motor (20) is controlled within a range not deviating.   The combine according to claim 6, wherein the automatic determination of the operating range of the handling depth adjusting motor (20) can be changed manually.

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