JPS592624A - Reaming height control apparatus of self-running agricultural machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The disclosed technology belongs to the technical field of automatically adjusting the cutting height of a pre-treatment section of an agricultural machine.

The present invention relates to a mowing height control device for a self-propelled agricultural machine that is connected to a culm killing sensing sensor, which is a set of levers that are installed in the front part 11 of the dehailer and which senses the culm and engages the steering clutch. In particular, the control device of the wave emitting/receiving device such as the wave emitting/receiving device (a cutting height sensing sensor measures the gap between the field and the pre-processing section, The adjustment operation by operating the section hydraulic lifting device is linked to the shell culm sensing state of the shell culm sensing sensor 1, and the above-mentioned wave control device is activated to regulate vibration waves, so that the pretreatment section posture is always optimal. Mowing height control of a self-propelled agricultural machine so as to be maintained (this invention relates to an I device).

As is well known, as shown in Fig. 1, the harvesting work performed by the combine harvester 1 as a self-propelled agricultural machine is carried out using dividers 3.3.4 attached to both sides and the middle of the lower tip of the pre-processing section 2 at the front of the machine.
J, after the husks are separated, they are harvested and sent to the pre-treatment section 2.
The grains are then transported via a transport device 5 to a threshing section 7 mounted on a crawler 6, where they are grained for a predetermined period of time.

The threshed grains are collected in the crane tank 8, while the culms are bundled and discharged to the rear.

The lever 9.9 of the culm sensing sensor 11 is extended to the divider 4, and the steering clutch (not shown) is engaged when the culm is detected or not, and the machine body position 16 at the time of reaping is set to the culm. However, it is maintained properly.

Further, a lever 10 connected to a cutting height control device is extended rearward at the lower part of the pretreatment section to grasp the field and measure the gap between the lower surface of the pretreatment section 2 and the field. , an embodiment is adopted in which the cutting height control sensor operates the front cutting section hydraulic lending device to adjust the cutting height of the pre-processing section 2 to a predetermined value.

However, since the lever 10 sets the cutting height by making surface contact with the shape of the field, there is a drawback that the cutting height from above the water surface in a wet field cannot be accurately measured.

The purpose of this invention is to provide a combine harvester based on the above-mentioned prior art.
We considered the problem of cutting height control of self-propelled agricultural machines as a technical issue to be solved, and made it possible to accurately measure the cutting height regardless of dry or wet fields. The present invention provides a cutting height control device that allows the cutting height to be eroded.

In order to solve the above-mentioned problems, the structure of the present invention according to the above-mentioned purpose is that the culm sensing lever installed in the pre-processing section of the self-propelled agricultural machine is a non-contact type that is located in the same direction as the body side. Exploration Ron →
``No'' is set to ``F'', the reflection time of the vibration wave by the wave emitting and receiving device of the probe is measured, and the pre-processing hydraulic protection device is activated in a prescribed manner.
- The gist of this invention is that technical measures have been taken to control the vibration waves by a wave control device linked to the lever.

Next, one embodiment of the present invention will be described below based on the drawings from FIG. 2 onwards. Incidentally, in each drawing, the same parts are indicated by the same reference numerals (J'L'U).

1' is a combine harvester as a self-propelled agricultural machine, and a two-row pre-treatment section 2 is installed at the front of the machine, and dividers 3, 3, and 4 (j) are installed on both sides and in the middle of the lower tip, as in Fig. 1 above. It is connected to a post-processing device 11 mounted on the rear crawler 6 via a link 13 of a hydraulic control device 12 and a hydraulic cylinder 14 that engages with the link 13.

The post-processing device 11 also includes an nta grain section 7 and a crane tank 8, which are connected to the pre-processing section 2 via a general transport equipment 5.
is set up.

In addition, 15 is a field and 1G is a grain culm.

On the other hand, as shown in FIG. 3, levers 9', 9' of a grain culm detection sensor 18 connected to an automatic steering side DIl (ADC) device 17, which will be described later, are pivoted on both sides of the 1-death intermediate divider 4. The side is limited so that it can be returned, and the white movement height control (A
, HC) cutting height detection sensor 2 connected to device 19
0 is provided at the lower part of the divider 4 at the same position in the left-right direction as the levers 9', 9', eccentrically to one side from the longitudinal center of the levers 9', 9'.

As shown in Fig. 4.5), the cutting height detection sensor 20 is configured such that an appropriate ultrasonic wave transmitting/receiving device 21, which is well known as a wave transmitting/receiving device, is directed toward the field 15. ,ing.

In addition, in FIG. 4, 24 is a recessed part, such as a footprint, inserted between the row cuttings of the field 15.

As shown in FIG. 6, the automatic steering control (ADC)
device 17 and automatic cutting height control (AHC) device 19
The ultrasonic wave transmitting/receiving device 21 of the cutting height detection sensor 20 is described in the culm sensing Hinley 18 and -. The input interface 1-27, which connects the automatic and manual VJ switch 25 to the mower setting volume 2G, receives the ζ output through the medium heat treatment device (CI"tJ) 28. The output device 29 is connected to the steering clutch 31 of the crawler 6 via the hydraulic control device 30 on the ΔDc device 17 side, and to the C wave control device via the timer relay 32. On the other hand, the ANC device 19 side is connected to the hydraulic cylinder 14 of the pre-processing section hydraulic backing device 12 via the hydraulic control device 33. It is VCed.

The ultrasonic output control volume 22 is linked to the culm sensing sensor 18, and operates to weaken the output of the ultrasonic sound from the ultrasonic transmitting/receiving (FI device 21) when the sensor 18 detects the culm. -I) The ultrasonic wave transmitter/receiver 21 is set in advance so as not to detect a reflected wave L energy below a predetermined energy.

In the above combination, combine harvester 1' is automatically steered (A
Switch 2 to switch the operation of DC> device 17 and automatic cutting height control (AI-4C) device 19! After setting the cutting height to a predetermined value using the volume 2G and turning the cursor to J, the row-cutting harvesting wheel 1iliIlifting 1j) is driven, and as shown in Fig. The ultrasonic light receiving device 21 of the G device 19 receives the emitted ultrasonic wave by reflecting it from the transmitter 15, sends the received signal No. 4 to the input interface 27, and sends the received signal No. 4 to the input interface 27. The reflection time of the ultrasonic wave is set to 8 by the device (CPU) 28.
1, and thereby the output device 29 outputs the hydraulic control device 3.
3, a predetermined operating current is applied.

Then, the hydraulic cylinder 14 is operated in response to pressure oil supplied from the hydraulic control device 33 to maintain the cutting height of the pre-processing section 2 at an appropriate position.

On the other hand, the automatic steering control (AI) levers 9', 9' installed in the intermediate divider 4 of the preprocessing section 2 abut against the culm 1G as shown in Figure 3. The culm detection sensor 18 is turned ON, and an operation signal 2 is sent from the input interface 27 to the CPU 28.

Then, the one word processed by the CPU 2111 activates the hydraulic control device 30 connected to the steering clutch 31 via the output device @29, which controls the left and right drive of the crawler 6 to control the above-mentioned front. The processing unit 2 sets the rJi constant orientation in the direction of the culm 16, and the mowing height detection sensor 20
The ultrasonic output control polyl-1, 22 is continuously operated on the ultrasonic light receiving device 21 of
Weaken the ultrasonic output from 1.

During this period, the operating state of the super wave output control volume 22 is maintained by the timer relay 32 for a predetermined period of 11-1.

Accordingly, during row cutting work, 'C1 said levers 9', 9'
In a state in which the grain culm 1G is not detected, that is, in a state where the grain culms 1G and 1G are located between the grain culms 9' and 9', the ultrasonic waves are strongly transmitted to the field 15, The depth Ji of the footprint 24 in the field 15 is not measured, and the ultrasonic output is weakened near the culm 16 as shown in FIG. The energy of the ultrasonic waves used is weak, so the repulsive waves are attenuated and are not detected. It will be measured.

Moreover, it goes without saying that the super-exciting waves cause the water surface to reflect the IFI in wet rice fields.

It goes without saying that the embodiments of this invention are not limited to the embodiments described above. For example, the wave emitting and receiving device may be an electromagnetic wave emitting and receiving device, and the wave control device may be an electromagnetic wave emitting and receiving device. Various embodiments can be adopted, such as a cone provided around the circumference and the vibration wave being squeezed by the protruding operation of the cone.

As mentioned above, in the mowing height control device of a self-propelled agricultural machine, the mowing height detection sensor closes the gap between the field and the pretreatment section in a non-contact state using the vibration waves of the wave transmitting/receiving device. Since the measurement is carried out from above the water surface in wet field work, and from the soft and hard surface of the field in dry field cultivation (the cutting height from the surface is accurately calculated, n; (The processing depth during grain processing is always constant, no unhandled grains, nb grains, etc. are produced, and an excellent effect is achieved in that stable harvesting work can be performed easily.

In addition, a wave control device is connected to the grain culm sensing sensor 1) and installed in the wave emitting/receiving device, and when the culm sensing sensor is turned on, the vibration wave output from the wave emitting/receiving device is weakened and Since the f-energy that splits from the culm is attenuated, it is not detected, and the effect is that the cutting height from the field can be measured more accurately a1.

Therefore, the vibration wave non-sensing state C is not weakened, and the field scene can be widely sensed to cover a wide sensing area, which has the effect of being able to detect the set cutting height in relation to holes, etc. There is.

Therefore, since the cutting height is automatically set, harvesting can be done easily by anyone.
The effect is that it can be done quickly and accurately.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram of a combine harvester, Fig. 2 and the following are explanatory diagrams of one embodiment of the present invention, Fig. 2 is an explanatory side view of the combine harvester, and Fig. 3 is an enlarged plan explanatory diagram of part A in Fig. 2. , FIG. 4 is an explanatory front view of the embodiment, FIG. 5 is an explanatory diagram of the same working state, and FIG. 6 is a one-dimensional diagram of the same circuit. 2... Pre-processing section, 31... Steering clutch, 17
... automatic steering control device, 18 ... culm sensing sensor 1 19 ... mowing height TL control device, 21 ... wave emitting and receiving device prevention, 22 ... wave control device, 20.・・Mowing height detection sensor→ノ, １２・・・Hydraulic lifting device

Claims (1)

[Claims] A mowing height control device for a self-propelled agricultural machine that is connected to a fu PiI sensing sensor 4j of an automatic steering control 3Il device attached to a pre-processing section and connected to a steering wheel /f. A cutting height detection sensor 4 for transmitting and receiving a device and a wave control device for the wave transmitting and receiving device is installed in the front section 11, and the wave light receiving + Pi decoy Pretreatment oil Ij: 9
7 is connected to the descending device, while the above-mentioned wave control formation) device [zl,
(v) A mowing height control device for a self-propelled agricultural machine characterized by being linked to a culm sensing tip.