JPS5917153Y2 - combine - Google Patents

Description

[Detailed description of the invention] The present invention consists of a waste straw cutter that shreds waste straw, and a waste straw path switching device that switches the waste straw cutter between a path for supplying waste straw and a path for not supplying waste straw. This relates to a combine harvester in which a threshing section is connected to a threshing section.

If the straw removal cutter is equipped with a dedicated clutch, if the straw removal path switching device is switched to the cutter side and you forget to engage the clutch dedicated to the straw removal cutter during work (if the cutter is not operating). Although the waste straw is not shredded, the waste straw is fed one after another into a part of the cutter, and as a result, there is a risk that the cutter may become clogged with waste straw and damage the cutter or feed chain. there were.

Therefore, it is conceivable to use an alarm device and provide a contact point that closes the alarm circuit in response to the disengaged state when the dedicated clutch is disengaged to prevent the above-mentioned danger from occurring. Even when the dedicated clutch is disengaged (the cutter is inactive), the waste straw route switching device switches the straw removal route to the route that does not supply waste straw to the cutter, for example, to the route where long straw is discharged outside the machine. If the switch is switched, it is impossible for the cutter to become clogged with waste straw, so it is necessary to carry out the work without generating an alarm.

The present invention was developed in consideration of this point, and it issues an alarm when and only in this case there is a risk that the cutter may be clogged with waste straw, thereby ensuring that the cutter, feed chain, etc. are prevented from being damaged due to clogging. The aim is to provide something that can be avoided.

Next, the embodiment of the present invention will be described in detail with reference to illustrative drawings.
is a waste straw cutter connected to the waste straw roller 3 of the threshing unit 2 mounted on the combiner, and includes a waste straw raking packer 5 and a waste straw transfer device 6 located at the end of the waste straw transport path A by the feed chain 4; and ``Feeding rollers 10, 1 that feed waste straw to the cutter part 9 consisting of the rotating blade 7 and the fixed blade 8.
Consists of 0.

Reference numeral 11 denotes a drive unit that controls the drive of the rotary blade 7, and a transmission shaft 12
A transmission belt 14 is stretched between the rotary blade 7 and the passive shaft 13 of the rotary blade 7.

Reference numeral 15 denotes a dedicated clutch for controlling the drive on/off of the straw removal cutter 1, which is comprised of a belt tension clutch mechanism consisting of a tensioning device 16 for the transmission belt 14 and an operating section 17 of the tensioning device 16.

Reference numeral 18 denotes a straw removal path switching device that switches and transfers the waste straw from the removal straw conveyance path A to the delivery path B, which sends it out to the rear of the machine, or the removal straw supply path C, which supplies it to the removal straw cutter 1. It is pivotally connected to the packer shaft 19.

In the combine harvester having the above configuration, the present invention includes a contact point 20 that closes in response to the switching operation of the special clutch 15 of the waste straw cutter 1, and a switch operation in response to the switching operation from the conveyance path A to the waste straw supply path C by the switching device ]8. These contacts 20 and 21 are connected in series via a power source 23 and incorporated into the alarm circuit of the aircraft alarm 24.

Therefore, according to the above configuration, if the threshing section 2 is started to operate while the switching tool 18 is switched to the sending path B side, the waste straw will be sent to the rear outside the machine. During this threshing operation, when the switching tool 18 is switched to the waste straw supply path C side, or when the switching tool 1
When the threshing section 2 starts operating with the straw cutter 8 switched to the waste straw supply path C side, if the straw cutter 1
If you forget to engage the special clutch 15,
A contact 20 corresponding to this dedicated clutch 15 is connected, and a contact 21 corresponding to this switching tool 18 is also connected in accordance with the switching posture of the switching tool 18 to the waste straw supply path C side. Therefore, the alarm 24 is activated and the operator is informed that he has forgotten to engage the dedicated clutch 15 of the straw removal cutter 1, so that accidents in which the removal straw cutter 1 becomes clogged with waste straw can be prevented.

Furthermore, even if the dedicated clutch 15 is left in the engaged state, as long as the switching device 18 is switched to the delivery path B side, the contact point 21 is open, so the alarm 24 remains activated. This inconvenient situation is avoided, and the threshing operation can be continued.

In summary, the combine harvester according to the present invention includes a waste straw cutter 1 having a dedicated clutch 15, and a waste straw path switching device 18 for switching the waste straw cutter 1 between a path for supplying waste straw and a path for not supplying waste straw. In a combine that is connected to the threshing section 2, a contact 20 that closes when the clutch 15 of the straw removal cutter 1 is disengaged and a contact 21 that closes when the removal straw path switching device 18 switches to the cutter 1 side are alerted. Since it is built into the circuit, the dedicated clutch 15 of the straw removal cutter 1 is in the disengaged state (
The alarm is issued only when the cutter is inactive) and the straw removal path switching device 18 is switched to the path to the cutter 1, that is, only when there is a risk that the removal straw may clog a part of the cutter. , it is possible to prevent damage to a part of the cutter or the feed chain of the threshing section due to clogging, and even if the special clutch 15 is in the disengaged state, the switching device 18 switches the waste straw to the cutter 1. If the supply is switched to another point, such as the path that supplies the outside of the aircraft, there will be no alarm, and no unnecessary vigilance or anxiety for the pilot. This allows the threshing and unloading work to continue under the working environment.

In addition, numbers are written in the claims section of the utility model registration for convenience of comparison with the drawings, but this entry does not mean that the present invention is limited to the structure of the attached drawings.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the funpine according to the present invention,
FIG. 1 is a longitudinal sectional side view of the main part, and FIG. 2 is an alarm circuit diagram. 1... Discharged straw cutter, 2... Threshing section, 15... Clutch, 18... Discharged straw route switching tool, 20.21... ··contact.

Claims (1)

[Scope of utility model registration request] A waste straw cutter 1 having a dedicated clutch 15 and a waste straw path switching tool 18 for switching the path of the waste straw cutter 1 between a path for supplying waste straw and a path for not supplying waste straw are installed in series in the threshing section 2. A combine harvester in which a contact 20 that closes when the clutch 15 of the straw removal cutter 1 is disengaged and a contact 21 that closes when the straw removal path switching tool 18 switches to the cutter 1 side are incorporated in an alarm circuit. .