JPH0236355Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention consists of a device for tying waste straw carried out from a threshing device, a dropper that can be freely switched between a posture for collecting bundles of tied waste straw discharged from this tying device and a posture for discharging it, and a tying device. A reaping/harvesting machine equipped with a mechanism for accumulating the number of collected waste straw bundles, and a mechanism for automatically and reversibly switching the dropper to a discharge position when the accumulating value of the accumulating mechanism reaches a set value. This invention relates to straw processing equipment.

Generally, when the harvester such as a combine harvester arrives at the headland, the threshing clutch is kept in the engaged state, and the reaping clutch is cut and the reaping section is raised. The method is to operate a switching device or the like as appropriate to turn the machine within the headland and move on to the next reaping and harvesting operation.

Looking at the processing status of waste straw during such headland turns, it is often found that less than the set number of bundled waste straw bundles are collected on the dropper when the aircraft arrives at the headland. Moreover, since the threshing and tying process continues even when turning, the number of collected straws reaches the set value during the turn, and the collected waste straw bundles on the dropper are released to the headland, and the headland discharged waste straw bundles are turned. There was a problem with being trampled by a moving aircraft.

As a means to prevent such accidental trampling of the waste straw bundles discharged from the headland, when the aircraft moves to the headland, the automatic attitude switching mechanism of the dropper is activated to switch to the discharge attitude even if the number of collected straw reaches a set value. Measures have been devised to prevent this, but in this case, there is a possibility that an excessive amount of waste straw bundles exceeding the set value will be collected on the dropper, which may cause deformation or damage to the constituent members of the dropper, or damage to the waste straw bundles. There was a drawback that it was easy to cause clogging.

The present invention is capable of effectively preventing the accidental trampling of bundles of collected waste straw that are discharged from the headland while turning the headland, without causing the above-mentioned drawbacks. It has a purpose in the point of making it.

The characteristic structure of the waste straw processing apparatus of the present invention, which has been made to achieve such an object, is that the automatic attitude switching mechanism of the dropper adjusts the integration based on the detection operation of the device that detects that the aircraft has reached the headland. The feature is that the dropper is preferentially switched to the ejection position and operated regardless of the integrated value of the mechanism, and the functions and effects of this feature are as follows.

<Function> In other words, even if less than the set number of bundled waste straw bundles are collected on the dropper when the aircraft arrives at the headland, the dropper is automatically released based on the headland arrival detection. In other words, since the turning is performed with no bundled waste straw bundles present on the dropper, the number of collected waste straw bundles reaches the set value during this headland turn. There is almost no possibility that the discharged waste straw bundles will be trampled by the aircraft.

<Effects> Therefore, unlike the above-mentioned restraining means, deformation and damage of the dropper constituent members and clogging of the waste straw are not caused, and the damage caused by the release of collected and waste straw bundles while turning the headland is avoided. It has now become possible to prevent the discharged waste straw bundle from being accidentally stepped on.

Hereinafter, embodiments of the configuration of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, the waste straw processing device of a combine harvester, which is an example of a reaping harvester, is configured such that a threshing feed chain 2 is connected to the waste straw opening side of the threshing device 1 in the direction of movement of the machine, as shown in FIGS. A first clamping and conveying device 3 and a disk-shaped cutter 4 that clamp the waste straw that is carried out in a horizontal or perpendicular posture and convey it diagonally toward the tip side at the rear of the machine.
Also, a binding device 5 whose position can be changed and fixed in the length direction of the waste straw culm is provided, and the first clamping and conveying device 3 is provided.
The structure is such that waste straw can be selectively supplied to the cutter 4 and the binding device 5. Further, the binding device 5
A second clamping and transporting device 6 that clamps the bundled bundle of waste straw released from the machine and conveys it diagonally toward the head side at the rear of the machine; A plate-shaped posture correction member 7 that corrects the tied bundle of waste straw to a posture that is the same as or close to the above-mentioned sideways posture by contacting the base, a posture for collecting the waste straw bundle after the posture correction, and a posture for discharging the bundle of waste straw. A dropper 8 whose swing can be switched freely, a mechanism 9 for electrically accumulating the number of binding operations of the binding device 5, and when the cumulative value of the accumulating mechanism 9 reaches a set value, the dropper 8 is automatically moved to a release position. A mechanism 10 for switching and swinging reversibly is provided.

To configure the attachment part of the dropper 8, an attachment frame 12 is extended rearward from near the end on the tip side of the frame 11 that supports the binding device 5 so as to be able to slide and change its position. An arm 13 supporting the dropper 8 is attached so as to be switchable and fixed between a dropper working state in which the dropper 8 is held substantially horizontally and a stored state in which the dropper 8 is held substantially vertically.

As shown in FIGS. 4 and 5, the integration mechanism 9 includes a binding transmission case 5 of the binding device 5.
On the outer surface of A, a sensor shaft 9A is provided on the peripheral edge of the through hole 5a formed at a location corresponding to the end of the timing gear shaft 14, and is capable of being fitted into and disengaged from the end of the timing gear shaft 14 from the axial direction. and,
A sensor case 9C is removably attached to the sensor case 9C, which is provided with a switch 9B that is always in contact with the de-cut portion of the sensor shaft 9A and is activated once when the sensor shaft 9A rotates once together with the timing gear shaft 14. A counter 9D is provided to add up the number of detection operations of the switch 9B.

The automatic posture switching mechanism 10 of the dropper 8 is constructed as follows.

That is, as shown in FIGS. 3 and 5, a locking member 1 using a bolt is screwed and fixed to the arm 13.
5. A spring 18 is hung between the tongue piece 17 fixed to the swinging fulcrum shaft 16 of the dropper 8 to swing and bias the dropper 8 to the collection position,
The arm 13 has a bolt-based stopper that restricts the return position of the dropper 8 to the collection posture by the spring 18 by contacting the first cam surface 19a of the cam 19 fixed to the swing fulcrum shaft 16. 20 and the second cam surface 19 of the cam 19
roller 21 that can freely swing between a state in which the dropper 8 is locked in the collecting position by contacting the roller 21b and an unlocked state in which it is released from the second cam surface 19b and allows the dropper 8 to swing to the discharge position. A lock member 22 with a lock member 22, a torsion coil spring 23 for biasing the lock member 22 into the locked state, and a solenoid 25 capable of forcibly switching the lock member 22 to the unlocked state via a link 24 are provided.

When the locking member 22 is switched to the unlocked state by the solenoid 25, the dropper 8 automatically switches to the discharging position and swings due to the weight of the collected and discarded straw bundle, and when discharging is completed, the spring 18 and By the cooperation of the locking member 22, the dropper 8 automatically returns to the collection position and is locked.

Further, a control section 27 is provided for outputting a control signal to the solenoid 25 to release the lock when the integrated value of the counter 9D reaches a set value of a setting device 26 that can change the number of collected waste straw bundles. There is.

By adjusting the setting device 26, the number of bundles of bundled waste straw bundles to be discharged can be freely changed such as three bundles, four bundles, five bundles, etc.

The control unit 27 is an example of a device that detects that the machine body has moved to the headland, and is based on the detection operation of the switch 29 that detects that the reaping unit lift lever 28 has been operated to the raising operation position. The solenoid 25 is configured to output a control signal for unlocking to the solenoid 25.

With this configuration, when the aircraft arrives at the headland,
Since the waste straw bundles remaining on the dropper 8 are always released, the number of collected waste straws does not reach the set number when turning the headland, or even if it reaches the set number, the number of collected waste straws is just before the end of the turn, and the waste straw bundles to be released are The possibility of being trampled by the aircraft is extremely low.

Further, the control section 27 is configured to output a control signal for unlocking the solenoid 25 even when a clogging detection sensor 30 provided above the dropper 8 is activated.

In the above embodiment, the device 29 that detects the movement of the machine to the headland uses a device that detects the raising operation of the reaping section, but instead of this, a device that detects the cutting operation of the reaping clutch or a side A device that detects clutch disengagement for a certain period of time or longer,
Alternatively, it may be implemented using a device that detects the presence or absence of adjacent planted grain culms, or a plurality of these may be combined with an AND condition.

Further, the control section 27, the setting device 26, and the counter 9D may be configured using a microcomputer.

[Brief explanation of the drawing]

Figures 1 and 2 are a side view and a plan view of the waste straw processing device of a combine harvester, Figure 3 is a partially cutaway side view of the automatic posture switching mechanism, Figure 4 is an enlarged sectional view of the detection device, and Figure 5. is an automatic switching control system diagram of the dropper posture. DESCRIPTION OF SYMBOLS 1... Threshing device, 5... Binding device, 8... Dropper, 9... Integration mechanism, 10... Automatic posture switching mechanism, 29... Detection device.

Claims (1)

[Claims for Utility Model Registration] 1. A device 5 for tying waste straw carried out from the threshing device 1, and a dropper 8 that can be freely switched between a posture for collecting bundles of tied waste straw discharged from the tying device 5 and a discharging posture. , a mechanism 9 for accumulating the number of collected bundles of bundled waste straw, and a mechanism 10 for automatically and reversibly switching the dropper 8 to a discharge position when the accumulated value of the accumulating mechanism 9 reaches a set value. In the waste straw processing device for a reaping and harvesting machine, the automatic posture switching mechanism 10 of the dropper 8 is configured to control the integrated value of the integration mechanism 9 based on the detection operation of the device 29 that detects that the aircraft has reached the headland. A waste straw processing device for a reaping/harvesting machine which is configured to operate by first switching the dropper 8 to a discharge position. 2. The waste straw processing device for a reaping/harvesting machine according to claim 1, wherein the integrating mechanism 9 integrates the number of binding operations of the binding device 5. 3. The waste straw processing device for a reaping harvester according to claim 1 or 2, wherein the detection device 29 detects a lifting operation of the reaping section. 4. The waste straw processing device for a reaping harvester according to claim 1 or 2, wherein the detection device 29 detects a cutting operation of a reaping clutch. 5. The waste straw processing device for a reaping/harvesting machine according to claim 1 or 2, wherein the detection device 29 detects a cutting operation of the side clutch for a certain period of time or more. 6. The waste straw processing device for a reaping harvester according to claim 1 or 2, wherein the detection device 29 detects the presence or absence of adjacent planted grain culms.