JPH0117948Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a guide rod that guides the movement of the stem culm scraped by the culm on the upper side of the rotary culm car. Regarding a stem culm raking device in a reaping machine such as a combine harvester, in which a sensor for detecting the presence or absence of the culm raked by the packer is mounted on a plate-shaped bracket fixed to the The purpose is to prevent sensor malfunction.

To be more specific, in the conventional stalk culling device of a reaping machine, the straw debris that falls onto the rotary comb car during raking conveyance is carried to the sensor position by the rotation of the rotary comb car and pulled. Hanging,
As this process is repeated one after another, a large amount of straw becomes entangled with the sensor, obstructing its operation.
There was a flaw that led to malfunction.

The stem culm raking device for the harvester according to the present invention was developed in view of the above points, and
The plate-shaped bracket is characterized in that its end side is configured to act as a scraper for the upper surface of the packer at a position separated from the sensor by an appropriate distance on the upper side in the direction of rotation of the packer.

Therefore, according to the present invention, by the scraper action of the edge of the plate-shaped bracket, the straw waste carried on the rotary packer can be removed from the rotary packer before it reaches the sensor position. A very simple structural modification, such as extending the bracket so that its edge acts as a scraper, prevents straw debris from getting caught or entangled in the sensor, ensuring that the sensor is always working. , it has become possible to maintain it in an accurate state.

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

At the front of the machine A, which is equipped with a crawler traveling device 1 and a threshing device 2, there is a reaping pre-processing section 3 that separates and raises a plurality of planted grain culms, then reaps and conveys the grain to the threshing device 2. are connected in series to form a combine harvester, which is an example of a reaping machine.

The reaping pre-processing section 3 includes a weeding tool 4, a pulling device 5, a clipper-type reaping device 6, a device 7 for transporting and supplying the reaped grain culm to the threshing device 3, and a reaping grain culm at the transport start end of this transport and supply device 7. It is equipped with a grain culm rake device that guides the culm.

The grain culm raking device is equipped with a pair of left and right rotary packers 8, 8' for raking grain culms that act on the base of the grain culm, and a pair of rotary packers 8, 8' are provided above the rotary packers 8, 8', respectively. , 8' are provided to guide the movement of the grain stems being scraped by the grain culms, and a plate-shaped bracket 10 is fixed to the inner side of the guide surface of one of the guide rods 9. A contact sensor 11 is mounted on the plate-shaped bracket 10 to detect the presence or absence of the grain culm that has been scraped by the packers 8, 8'.

The plate-shaped bracket 10 is configured such that its end side 10a acts as a scraper for the upper surface of the packer 8 at a position at a suitable distance away from the sensor 11 on the upper side in the packer rotation direction.

The sensor 11 is used as a starting sensor for controlling the handling depth and controlling the vehicle speed to keep the engine load constant.
When the contactor 11a is swung backward due to contact with the raked grain culm, its swinging tip is positioned at the transport start end of the transport supply device 7, that is, the grain culm located at the transport start end is The length is such that it can be touched.

Of the packers 8, 8', the one on the side to which the sensor 11 is not attached 8' is driven via a belt or the like, and the one on the side to which the sensor 11 is attached drives its wavy outer peripheral surface to the drive packer 8'. By engaging and interlocking with the wavy outer circumferential surface, it is driven via a drive packer 8'.

[Brief explanation of the drawing]

Figure 1 is a side view of the main parts of a combine harvester (reaper).
FIG. 2 is an enlarged cross-sectional plan view of the main part, and FIG. 3 is a sectional view taken along the - line in FIG. 8...Rotating gear car, 9...Guide rod, 10...
...Plate bracket, 11...Sensor.

Claims (1)

[Scope of utility model registration request] A guide rod 9 for guiding the movement of the stem culm scraped by the stalk culm raking car 8 is disposed above the rotary culm raking car 8, and this guide rod 9
In a stem culm scraping device for a reaping machine, a sensor 11 for detecting the presence or absence of the stalk culm scraped by the packer 8 is mounted on a plate bracket 10 fixed to the inside of the guide surface of the plate bracket 1.
0 is configured such that its end side acts as a scraper for the upper surface of the comb car 8 at a position at an appropriate distance away from the sensor 11 on the upper side in the direction of rotation of the comb car. Stem culm scraping device.