JPS61141811A - Automatic lift apparatus of reaping part of combine - 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 (Industrial Field of Application) The present invention relates to an autolift device for a reaping section of a combine harvester.

(Prior art) A conventional auto-lift device for a reaping section is provided with a culm presence detection sensor in the reaping section, and when the culm presence detection sensor does not detect a reaped culm, a hydraulic device is operated to automatically move the reaping section. It is used effectively when rotating the combine harvester.

(Problem to be solved by the invention) However, in the known method, if there is no culm, the reaping part immediately moves upward, so if the culm presence detection sensor catches straw, etc. When removed, it simultaneously moved upward, which was extremely dangerous for one worker.

(Means for Solving the Problems) Therefore, the present invention overcomes the above problems by configuring the autolift device to operate only when the machine is moving forward. A hydraulic device 11 for moving the culm, a culm presence/absence detection sensor 4 for detecting the presence or absence of a reaped culm, and a forward switch 2 for detecting the forward movement of the aircraft body 10.
#i, the shell culm presence/absence detection sensor 14, the hydraulic system IT, and the forward switch 26 are connected such that when the forward switch 26 is ON, the shell culm presence/absence detection sensor 14 is OFF.
When the FF is activated, the hydraulic system ll operates to automatically move the reaping section 5 upward, but when the forward switch 26 is OFF
In the case of F, the auto-lift device of the reaping section of the combine is connected so that the hydraulic device 11 does not operate even if the culm presence/absence detection sensor 14 is OFF, and the culm presence/absence detection sensor 14 is provided in plurality in the traveling direction. The gist of this paper is the configuration of an auto-lift device for the reaping section of a combine harvester.

An embodiment of the present invention will be described with reference to the drawings. 1 is a running section;
2 is a threshing section, 3 is a supply section, 4 is a driver's seat, 5 is a reaping section, 6
1 is a weed cutting body, 7 is a pulling device of the reaping section 5, 8 is a frame of the reaping section 5, 9 is a conveyance device, 10 is a combine harvester body, ll
1 is a hydraulic system, 12 is a manual vertical lever that operates the hydraulic system 11, and the movement control unit 5 marked with # is an arrow mark with respect to the fuselage 10 around the horizontal axis 13 to switch the oil supply to the cylinder of the hydraulic system 1tll. It moves up and down like this.

As shown in FIGS. 2 and 3, the reaping unit 5 is provided with two culm presence/absence detection sensors 14 and 15. The culm presence/absence detecting sensors 14.15 are provided at front and back intervals of approximately 15 cm, which is narrower than the distance between plants, and the hydraulic system 11 is activated only when both sensors 14.15 are OFF and the aircraft 10 is moving forward. to automatically move the reaping section 5 upward. The culm presence detection sensor 14.15
The reason why the culm detection sensors 14.1 are staggered back and forth is because when reaping work is performed in the horizontal direction with respect to the panicle, the distance between plants is approximately 30 to 33 ctx.
This is because if 5 is provided, there will be a case where neither of the culm presence/absence detecting sensors 14 and 15 will be able to detect the reaped culm. 1
B is a cutting blade.

FIG. 4 shows a control circuit for the hydraulic device 11, in which 17 is a raising solenoid for moving the reaping section 5 upward by the hydraulic device 11, and 18 is a lowering solenoid for moving the reaping section 5 downward by the hydraulic device 11. 19 is the unload solenoid,
20 is a set volume for setting the mowing height position of the reaping section 5 during reaping work; 21 is a displacement sensor provided on the horizontal shaft 13 and measures the rotation angle of the machine body and the reaping section 5; 22 is the set volume 20 The cutting height position of the cutting part 5 is controlled to the position set by the set volume 20 by comparing the cutting height position of the cutting part 5 set by the height position of the cutting part 5 and the height position of the cutting part 5 measured by the displacement sensor 21. A switch of the automatic adjustment device, 23 is an upward switch that is pressed when the manual vertical lever 12 is operated upward, 24 is a downward switch that is depressed when the manual vertical lever 12 is operated downward; 25 is a reverse switch that is pressed when the travel lever of the aircraft body is moved backward; 26 is a forward switch that is pressed when the travel lever of the aircraft body is set forward; 27 is a controller.

(effect) Next, we will discuss the effect.

Drive the combine harvester, enter the field, and set volume 2.
0 to set the cutting height position of the weeding body 6, and switch 22
When the switch is turned ON and the manual vertical movement lever 12 is operated, the entire reaping section 5 is at the desired height position, and when the forward switch 26 is pressed using the travel lever, the reaping operation can be performed. If the presence detection sensor 14 or the culm presence detection sensor 15 gets caught in straw, etc.
When the travel lever is returned, the forward switch 26 is turned OFF and the aircraft stops. Therefore, the stuck straw is removed, but at this time, even though both the culm presence detection sensor 14 and the culm presence detection sensor 15 are OFF due to the straw removal, the forward switch 26 is OFF, so the lift solenoid 17 is automatically turned off. The solenoid 17 is not energized until the reaping section 5 moves upward, and the solenoid 17 is not energized until the removal of the stuck straw is completed and the forward switch 26 is turned on again using the travel lever, so that the operator is safe. However, when reaping work in one direction is completed and reaping work is carried out laterally to the field, the row spacing in rows should be 30 mm.
~33ci+, so even if multiple known sensors for detecting the presence of culm are installed, the culm cannot be detected even though there is a culm to be harvested, and the autolift device will operate. However, the culm presence/absence detection sensor 14.15 of the present invention is approximately 15.
(c) Since they are arranged at different positions, the reaped husk culm can be detected effectively even between the rows in rows.

(Effects) As described above, the conventionally known automatic lift device for the reaping section is provided with a culm presence detection sensor in the reaping section, and when the culm presence detection sensor does not detect a reaped culm, the hydraulic device is always activated. The reaping section was automatically moved upward. Therefore, when straw or the like is caught in the culm presence detection sensor, when it is removed, it simultaneously moves upward, which is extremely dangerous for the operator.

However, the present invention overcomes the above problem by configuring the autolift device to operate only when the machine is moving forward. It consists of a culm presence detection sensor 14 that detects the presence or absence of a culm, and a forward switch 26 that detects the forward movement of the aircraft body 10. When the switch 26 is ON and the culm presence/absence detection sensor 14 is OFF, the hydraulic system 11 operates to automatically move the reaping section 5 upward; however, when the forward switch 26 is OFF
The auto-lift device of the reaping section of the combine is connected so that the hydraulic device 11 does not operate even if the culm presence/absence detection sensor 14 is OFF when the vehicle is FF, and the culm presence/absence detection sensor 14 is provided in plurality in the traveling direction. Since the gist is the configuration of an auto-lift device for the reaping section of a combine harvester, the culm presence detection sensor 14,
Alternatively, if the culm presence/absence detection sensor 15 is caught in straw, etc., the forward switch 26 is turned off at the same time as the traveling lever is returned to stop the aircraft. 14 and the culm presence/absence detection sensor 15 are both turned OFF, the reaping section 5 does not move upward, so that the operator can safely remove the trapped straw.

Furthermore, when the reaping work in one direction is completed and the reaping work is performed laterally with respect to the field, the spacing between rows becomes wider, but the culm presence/absence detection sensor 14,15 of the present invention Since the position is shifted with respect to the direction of movement, the reaped husk culm can be effectively detected even between rows in rows.

[Brief explanation of the drawing]

Fig. 1 is an overall side view, Fig. 2 is an enlarged side view of main parts, Fig. 3 is a relationship diagram showing the positional relationship between the culm presence detection sensor 14 and the culm presence detection sensor 15, and Fig. 4 is the circuit. Figure, 5th
The figure is a flowchart diagram. Explanation of the symbols 1... Traveling section, 2... Automatic threshing device, 3... Supply cheno, 4... Driver's seat, 5... Reaping section, 6... Grass splitting body. 7... Lifting device, 8... Frame, 9... Transport device, 10... Airframe, 11... Hydraulic system, 12...
Manual vertical movement lever, 13...Horizontal shaft, 14...Culm presence/absence detection sensor, 15...Culm presence/absence detection sensor, 1
6...Cutter blade, 17...Upper solenoid, 18...
Lowering solenoid, 19...Unloading solenoid, 2
0...Set volume, 21...Displacement sensor,
22...Switch, 23...Upper movement switch, 24...
...Downward switch, 25...Reverse switch, 26...
・Forward switch, 27...controller. 2nd Wi Figure 4

Claims (2)

[Claims] (1) Hydraulic device 11 that moves the reaping part 5 of the combine upward
and a culm presence detection sensor 1 that detects the presence or absence of a reaped culm.
4, and a forward switch 26 that detects the forward movement of the fuselage 10.
6 is ON and the culm presence/absence detection sensor 14 is OFF, the hydraulic system 11 is activated and the reaping section 5 is automatically operated.
The automatic lift device for the reaping section of a combine is connected so that when the forward switch 26 is OFF, the hydraulic device 11 is not operated even if the culm presence/absence detection sensor 14 is OFF. (2) Hydraulic device 11 that moves the reaping part 5 of the combine upward
and a culm presence detection sensor 1 that detects the presence or absence of a reaped culm.
4, and a forward switch 26 that detects the forward movement of the fuselage 10.
6 is ON and the culm presence/absence detection sensor 14 is OFF, the hydraulic system 11 is activated and the reaping section 5 is automatically operated.
However, when the forward switch 26 is OFF, the hydraulic device 11 does not operate even if the culm presence detection sensor 14 is OFF. The detection sensor 14 is an auto-lift device for the reaping section of a combine harvester, which is arranged in multiple directions in the direction of travel.