JPH0889076A - Detector for clogging of waste straw in combine - Google Patents

Abstract

PURPOSE: To surely perform a treatment of the clogging of waste straw when a waste-straw sensor detects it. CONSTITUTION: A threshing apparatus provided with a feed chain 3 for transferring culm and a waste straw-transferring apparatus 4 for transferring waste straw are placed on an under-carriage provided with a mobile apparatus 1. In front of the threshing apparatus, a reaping pretreatment equipment, which is composed of a culm-raising apparatus, a reaping apparatus and a culm- transferring apparatus 8, is pivoted in such a manner as to be movable in a vertical direction between an upper non-working position and a lower working position by a lifting apparatus. A waste-straw sensor 10 for detecting the amount of waste straw transferred by the waste straw-transferring apparatus 4 is placed at a position facing a waste straw-transferring path 11. The objective detector for the clogging of waste straw has such a structure that the mobile apparatus 1 and at the same time rotating parts of the reaping pretreatment equipment and a feed chain 3 are stopped when the sensor 10 detects the overload of waste straw based on a specified amount.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detecting jammed straw in a combine, which is used for a self-removing combine.

[0002]

2. Description of the Related Art Conventionally, a combine has a feed chain and a straw-discharging chain continuous to it, and feeds the tip of the harvested grain culm into the handling room while carrying it to thresh it. It is configured. Furthermore, the combine carries the threshed straw after threshing from the feed chain to the straw chain, and conveys it.
It is configured to perform post-processing such as discharging it outside the machine and cutting it with a cutter.

In such a transport route for grain and straw, the straw sensor is provided so as to face the straw route in the straw chain, and when the straw is stagnant beyond a predetermined amount, an alarm is issued. It is configured so that the engine emits and then the engine is stopped.

[0004]

In the above-mentioned conventional combine harvester, when the straw is stagnated and jammed in the process of conveyance, the straw sensor detects the straw and controls it. Although it has been described that the detection signal is transmitted to the engine to stop the engine, this conventional type has the following problems.

That is, the diesel engine mounted on this type of combine is not preferable in terms of durability if the engine is stopped by a stop signal issued from the control device during high speed operation. It is desirable to reduce it. Therefore, in order to reduce the number of times the engine is stopped, the exhaust sensor is often operated with a low sensitivity, but if this is done, it will be sensed after the exhaust is completely clogged and it will be difficult to carry out post-measures. There is a problem.

Therefore, the present invention is to solve the above-mentioned defects in the conventional example, in which the traveling device is stopped when the straw sensor detects a predetermined amount of straw or more, and before the cutting. The problem is solved by adopting a configuration in which the rotating parts of the processing device and the feed chain are stopped.

[0007]

The present invention takes the following technical means in order to solve the above problems. That is, on a chassis 2 having a traveling device 1, a threshing device 5 having a feed chain 3 that conveys grain stalks and a straw conveying device 4 that conveys straw is mounted and provided in front of the threshing device 5. The cutting pretreatment device 9 including the grain culm raising device 6, the mowing device 7, and the grain culm transporting device 8 can be moved up and down between the upper non-working position and the lower working position by the lifting device. An straw sensor 10 for detecting the amount of straw carried by the straw carrying device 4 is provided so as to be pivotally connected, and is provided so as to face the straw carrying path 11, and the straw sensor-1
0 is a combine Straw clogs detector which is configured to stop the traveling device 1 when 0 detects a predetermined amount of straw or more and to stop the rotating parts of the pre-mowing treatment device 9 and the feed chain 3.

[0008]

EXAMPLE First, the structure will be described. Chassis 2
It has a traveling device 1 composed of a crawler, and is configured so that it can travel not only in dry fields but also in wet fields without sinking. The threshing device 5 has a handling chamber 13 in which a handling barrel 12 is internally mounted, and the feeding chain 3 is provided along the handling chamber 13.
And a sorting chamber is provided on the lower side. The feed chain 3 is configured to be transmitted from the handling barrel shaft 14 via the gear box 15a, the transmission device 15b, and the gear box 15c, and the gear box 15c has a clutch installed therein.

Reference numeral 16 is a control motor, which is driven by an output from a controller 17, which will be described later, so that the clutch can be operated intermittently. The straw-conveying device 4 is composed of a straw chain 18 that conveys the root side and a straw belt 19 that conveys the tip side from the middle portion when conveying the straw that has been laid sideways.
I am trying. The straw sensor 10 is provided so as to face the transport passage 11 formed along the straw transport device 4 configured by the straw chain 18 and the straw belt 19, and when the grain yield becomes a constant layer thickness. It is configured to detect.

The threshing device 5 configured as described above is mounted on the chassis 2 with the grain culm supply port 20 on the front side. The pre-mowing processing device 9 is provided with a weeding rod 22, a grain culm raising device 6, a reaping device 7 and a grain culm transporting device 8 from the front side on the mowing and conveying frame 21, respectively, and cuts grain culms in the field to thresh. It is configured so that it can be transported to and supplied to the device 5. That is,
The weeding rod 22 is fixed to the front end portion of the cutting and transporting frame 21, and is configured to weed grain culms in the field as it moves forward.

The grain culm raising device 6 is composed of a raising case 25 which is rotated by the raising lug 24 projecting on the raising side to cause the fallen grain culvert, and is arranged behind the weeding rod 22. The lower part is tilted forward and the upper part is tilted backward.
The mowing device 7 adopts a reciprocating type, is provided at a lower portion of the mowing / conveying frame 21, and is configured to mow the root of the grain culm.

The grain culm transporting device 8 comprises a stock carrier transporting chain 26 and a tip transporting lug 27, and the starting end portion thereof is cut by the harvesting device 7.
Is arranged above and the terminal end is faced to the starting end of the feed chain 3 to convey the grain culms. This grain culm transporting device 8 has a structure in which the handling depth can be adjusted.
In the pre-mowing device 9 configured as described above, the rear part of the mowing and conveying frame 21 is pivotally attached to the front side of the threshing device 5, and a hydraulic cylinder 28 forms a lower working position and an upper non-working position. The space between them can be freely rotated up and down.

Then, the mowing pretreatment device 9 starts the ascending by the hydraulic cylinder 28 and detects the ascending detection sensor-2.
It is configured to send a signal to start ascending to the controller 17 based on the detection of 9. The reaping control motor 30 is driven based on the output signal from the controller 17, so that the reaping clutch 31 can be disengaged. The main clutch 32 is on the power transmission side of the traveling mission device 33, and is configured to be able to connect and disconnect the rotational power to the traveling mission device 33 by the operation of the tension pulley 34.
The clutch control motor 35 is configured to intermittently operate the tension pulley 34.

Therefore, the controller 17 sends the detection result of the straw sensor 10 as a signal when the layer of straw in the transport passage 11 reaches a predetermined level or more, and as a result, the control motor 16 is reached. The output signals are transmitted to the mowing control motor 30 and the clutch control motor 35, respectively. Therefore, the feed chain 3 is controlled by the control mode.
The clutch in the gear box 15c is disengaged with the driving of the turret 16 to interrupt the transportation of the grain stems. When the mowing control motor 30 and the clutch control motor 35 are driven based on the output signal, the mowing clutch 31 can be disengaged to stop the rotating parts of the mowing pretreatment device 9. The main clutch 32 is disengaged by operating the tension pulley 34, and the traveling device 1 is stopped via the traveling mission device 33.

Another Embodiment 1 The embodiment shown in FIG. 5 is a safety device for a plunge by a weeding rod 22. That is, the plunge sensor-40 is
A switch 41 is provided on the back side of the weeding rod 22, and the tension spring 42
The configuration is such that the tension is maintained in the OFF state. When the plunge sensor 40 plunges into the soil with the forward movement of the chassis 2, the plunge sensor 40 resists the tension of the tension spring 42 and switches 4.
1 is turned on. And switch 4
1 is connected to the controller 17, and when it is turned on, the result is transmitted and the clutch control motor 35 is operated from the controller 17 to disconnect the main clutch 32. .

Therefore, the weeding rod 22 has a feature that the traveling is automatically stopped by the detection by the plunge sensor 40, and therefore the breakage rod is prevented from being damaged and the work can be performed safely. Then, after the traveling device 1 has stopped as described above, it is safe if the main transmission device is switched to the reverse drive to eliminate the plunge.

Another Embodiment 2 An embodiment shown in FIGS. 6, 7, and 8 will be described. The crawler 50 includes a front drive sprocket 51, a rear adjustment wheel 52, a front wheel 53 and a rear wheel 5 in a fixed position which are mounted on the front and rear sides.
It is provided so as to be wound around 4 and to be driven by driving the drive sprocket 51. In this case, Crawler 5
0 is the front wheel 53 and the rear wheel 54 whose minimum contact length is fixed.
It has become the length between.

The front working wheel 55 is arranged between the drive sprocket 51 and the front wheel 53, and the rear working wheel 56 is arranged between the rear wheel 54 and the adjusting wheel 52. The hydraulic cylinder 57 can be operated up and down. That is, the front operation wheel 55 and the rear operation wheel 56 are configured to be operable in the states of FIG. 6, FIG. 7, and FIG. Therefore, the chlora 50
6 is suitable for front balance in the case of FIG. 6, suitable for rear balance in the case of FIG. 7, and suitable for turning in the case of FIG. 8 because the contact length is short.

Another Embodiment 3 As shown in FIGS. 9 and 10, the reverse sensor 60 has an ultrasonic type constitution comprising a transmitter 60a and a receiver 60b, and is attached to the rear portion of the traveling chassis 61. It is configured so that obstacles behind it can be detected when moving backward. The reverse sensor 60 is connected so that a detection signal can be transmitted to the controller 62, and the reverse sensor 60 outputs the alarm signal to the alarm device 63 and the raising device 64 of the traveling chassis 61. There is.

If the conventionally known pitching actuator 65 shown in FIGS. 9 and 10 is used as the lifting device 64, the traveling chassis 61 is economical because a separate mechanism is not required.
Next, the operation will be described. First of all, when the harvesting threshing work is started while starting the prime mover and driving the rotating parts of the machine body, the felled grain culms are weeded by the front shunt rod 22 and then from the bottom to the top. The upright lug 24, which is rotating toward the front, is engaged with the pull-up lug 24 to be raised, and the upright state is established. Then, the grain culm reaches the harvesting device 7 and is mowed, and the strain source is inherited and held by the strain source transport chain 26, and the tip side reaches the tip transport lug 27 to be engaged and further. Transported to the upper rear. At that time, the grain culm transporting device 8 detects the length of the grain culm and automatically adjusts the handling depth to supply the grain culm from the end portion to the starting end portion of the feed chain 3.

As described above, the grain culms in the field are continuously cut and transported, threshed and sorted, and then the grains are carried out of the machine and stored in the Glen tank, and the straw is discharged. It is conveyed by the straw conveying device 4, reaches the straw cutter, is cut, and is scattered on the field scene after cutting. In such a work process, the straw sensor 10 monitors the straw being conveyed through the conveying passage 11 formed between the straw chain 18 and the straw belt 19, and the straw is detected. There is no change during normal operation when the sheet is conveyed while maintaining a predetermined layer thickness. Therefore, when the amount of straw in the transport passage 11 increases and the layer thickness exceeds a predetermined thickness, the straw sensor 10 transmits the detection result to the controller 17 as a signal.

Then, the controller 17 controls the control mode.
Output signals for driving are output to the motor 16, the cutting control motor 30, and the clutch control motor 35 to drive the control motors. Therefore, the main clutch 32 is put into the disengaged state by the tension control motor 35 actuating the tension pulley 34 to the open position, interrupting the transmission to the traveling mission device 33, and stopping the traveling device 1. Then, in the pre-mowing processor 9, the mowing clutch 31 is disengaged by the mowing control motor 30, the transmission is interrupted, and the rotating parts are stopped. Further, the feed chain 3 is a control motor.
When the clutch in the gear box 15c is disengaged by 16, it stops.

As described above, when the straw sensor 10 detects a clogging in the process of conveying straw, the traveling of the chassis 2 is stopped, the mowing work is interrupted, and the rotation of the mowing pretreatment device 9 is continued. Since each part is stopped and the feed chain 3 is stopped, the clogging phenomenon of straw does not proceed any further, and damage to each part can be prevented in advance. Further, the clogged straw has an advantage that it can be easily carried out because the clogging phenomenon is relatively early even in the removal work.

[0024]

As described above, according to the present invention, a threshing device having a feed chain for transporting grain culm and a straw transporting device for transporting straw is mounted on a chassis having a traveling device. In front of the threshing device, a mowing pretreatment device comprising a grain culm raising device, a mowing device and a grain culm conveying device can be moved up and down between an upper non-working position and a lower working position by an elevating device. As described above, a straw sensor for detecting the amount of straw carried by the straw carrying device is provided so as to face the straw carrying path, and the straw sensor discharges a predetermined amount or more. When the straw amount is detected, the traveling device is stopped, and at the same time, the rotation precession device and the feeding chain are stopped, so that the straw during transport is blocked and the straw in the transport passage is clogged. When the layer thickness exceeds a certain level, the straw sensor will quickly There the signal is detected control - to send to - la. Then, the traveling device can stop and stop the forward movement, and can also stop the rotating parts of the pre-mowing treatment device and the feed chain. Therefore, the combine has become a highly durable device that is hardly damaged by clogging of straw.

As in the conventional case, the engine is stopped by detecting clogging of straw, and there is a great effect that the durability of the engine is not impaired.

[Brief description of drawings]

FIG. 1 is a plan view showing an essential part of an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention with a part of the combine cut away.

FIG. 3 is a plan view of the combine according to the embodiment of the present invention.

FIG. 4 is a block circuit diagram showing an embodiment of the present invention.

FIG. 5 is a detailed view of a weeding rod, which is Embodiment 1 of the present invention.

FIG. 6 is a second embodiment of the present invention, and is a side view of the operation of the main part.

FIG. 7 is a second embodiment of the present invention, which is a side view of the operation of the main part.

FIG. 8 is a second embodiment of the present invention and is a side view of the operation of the main part.

[Fig. 9] Fig. 9 is a side view of the operation of the main part of a third embodiment of the present invention.

FIG. 10 is a third embodiment of the present invention, which is a side view of the operation of the main part.

FIG. 11 is a block circuit diagram showing another embodiment 3 of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Traveling device 2 Chassis 3 Feedochien 4 Straw conveying device 5 Threshing device 6 Grain culm raising device 7 Mowing device 8 Grain culm conveying device 9 Cutting pretreatment device 10 Discharge sensor-11 Conveying passage

Claims (1)

[Claims] 1. A threshing device having a feed chain for transporting grain culm and a straw transporting device for transporting straw is mounted on a chassis having a traveling device, and a grain is provided in front of the threshing device. A mowing pretreatment device consisting of a culm raising device, a mowing device, and a grain culm conveying device is pivotally connected so that it can be moved up and down between an upper non-working position and a lower working position by an elevating device. An straw sensor for detecting the amount of straw carried by the straw carrying device is provided so as to face the carrying path of the straw, and the traveling device is operated when the straw sensor detects a straw amount of a predetermined amount or more. Combined straw clogging detection device configured to stop and stop rotation parts and feed chain of the pre-mowing treatment device