JPS5839060Y2 - combine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combine harvester, and more specifically, a conveying device that adjusts the handling depth of the harvested culm to either the planking side or the deep handling side by varying the inclination angle of the vertical conveying device. The present invention relates to a combine harvester equipped with a directional control valve for swinging.

Conventionally, when adjusting the handling depth by swinging a vertical conveyance device, if a malfunction occurs in the swing support point of the device or the drive unit for swinging, or even a limit switch, etc., the swing This was extremely dangerous as it caused various problems such as damage to the first drive part, increased threshing load, and unhandled grain.

The present invention solves the above-mentioned conventional drawbacks, and has a structure in which the handling depth of the husk is adjusted by displacing the vertical conveying device according to the length of the cut culm, and the handling of the vertical conveying device is improved. A delay member is provided to detect the automatic depth adjustment start operation, and the delay member is interlocked with an alarm device that is activated after a certain period of time during automatic depth adjustment, and the handling depth of the vertical conveyance device is manually operated. The delay member is interlocked with the manual switch so that the alarm device can be operated even during operation, so even if the limit switch for adjusting the handling depth is damaged, the failure can be quickly dealt with and the damage can be prevented from expanding. Therefore, even if the threshing load increases due to a failure on the deep handling side, the danger can be avoided before the threshing part is damaged, and even if a failure on the cross-cutting side occurs, the occurrence of unhandled items can be prevented. Furthermore, even if the swinging of the vertical conveyance device is interrupted due to contact with a foreign object, the accident can be repaired with minimal damage, and the damage can be prevented from spreading to related equipment, allowing safe handling. It is intended to provide a combine harvester.

Embodiments of the present invention will be described in detail below based on the drawings.

Figure 1 is a side view of the whole, Figure 2 is a plan view of it, and 1 in the figure.
2 is a truck frame equipped with a pair of running rollers 3, 3 on both sides; 4 is a track that allows the machine 1 to rotate in the vertical direction when turning the machine 1, etc.; A pivot shaft supported by the frame 2; 5 is a cylinder that lifts the front part of the machine 1 upwards using the pivot shaft 4 as a fulcrum; 6 is a threshing unit mounted on the machine 1; The body 7 is mounted on a shaft along the longitudinal direction of the machine base 1.

8 is a reaping device for multi-row mowing, which includes a plurality of grass dividing boards 9 and a cutting blade 1.
0.

Reference numeral 11 denotes a husk culm transfer device, which includes a feed chain 12 and a culm rod 13, and is installed along the handling opening (not shown) of the threshing section 6.

Further, 14 is a driver's seat, 15 is a driving operation section, 16 is a grain pedestal facing upward from a grain frying conveyor device 17 for taking out fine grains from the first mouth, and 18 is a rear part of the threshing section 6. 19 is a straw removal chain extending from the terminal end of the feed chain 12 to the upper part of the cutter of the straw removal cutting device 18; 20 is a cover for the chain 19;

Furthermore, 21 is an engine mounted on the machine base 1, and 22 is a driving sprocket for the running roller 3, which is connected to a running square shaft (not shown).

Further, 23 is a roller 3 running together with the sprocket 22.
24 is a carrier roller 25 which is brought into sliding contact with the upper inner surface of the running roller 3;
... are a plurality of track rollers that are brought into sliding contact with the lower inner surface of the running roller 3.

Furthermore, 26 is a suction/discharge seat device whose suction port is opened toward the sorting air path, 27 is an inlet supply plate provided at the lower part of the handling chamber of the threshing section 6, and 28 is a handling barrel pulley cover.

Next, to explain the shell culm conveying device, a raking drum 29 is installed above the cutting blade 10 in the reaping device 8.
The scraping drum 29 is equipped with a star wheel 30 for scraping the root side of the culm, which can be rotated freely.

Each of these star wheels 30 is equipped to correspond to the left and right shell culm lifting devices 31 and 32, and coaxially with these star wheels 30 is a sprocket (not shown) that drives the lower conveying chain 33 and 33. are provided to constitute the lower conveying devices on the left and right sides, and are configured to clamp and convey the culm base of the grain culm.

Further, left and right upper conveying devices 34.34 are installed above the left and right lower conveying devices for pinching and conveying the tip side of the shell culm, and conveying tines 34a to be opened in these devices 34.34 are conveyed to the shell culm. It is covered with the upper right conveyance cover 36 in a state where it is exposed in a protruding manner toward the passage.

The starting end of a vertical conveying device 37 whose length can be adjusted is exposed behind the upper conveying device 34° 340, and its terminal end extends toward the starting end of the feed chain 12. There is.

Further, on the inner surface of the handling barrel pulley cover 28, tip detecting devices, so-called sensors 3B, 39 are attached, and these devices 38, 39 detect the handling depth of the culm inserted into the handling chamber, and will be described in detail later. The inclination angle of the vertical conveyance device 37 can be varied through a hydraulic circuit.

Further, as shown in FIGS. 3 and 4, the detection device 3
8.39 is a microswitch 4 having a normally open contact 40a
0 and a microswitch 41 having a normally closed contact 41b.
A first connecting rod 42 is connected to the lower end pivot portion 37b, and a second connecting rod 43 is connected to the lower end pivot 37b, and the middle part of the second connecting rod 43 is connected to the piston rod 45 of the hydraulic cylinder 44. be.

The chamber 44a on one side of the cylinder 44 across the piston is connected to a tank 47 via a hydraulic pump 46, and the chamber 44a on the other side is connected to a tank 47 via a hydraulic pump 46.
4b is directly connected to tank 47.

However, a 4-port electromagnetic switching valve 50 having solenoids 48 and 49 is provided between the hydraulic cylinder 44 and the tank 47.

Further, a relief valve 51 is provided on the discharge side of the hydraulic pump 46.
are connected.

Further, the vertical conveyance device 37 is equipped with a microswitch 52 for detecting the culm base of the shell culm, and this microswitch 52 has a normally open contact 52a.

As shown in FIG. 4, a select switch 54 for automatic/manual switching is connected to the battery 53, and each contact 52a is connected to the select switch 54.

41b, the first alarm lamp 55, and the solenoid 48, and connect the select switch 54 to the series circuit consisting of the contact 40a, the second alarm lamp 56, and the solenoid 49 in parallel with the series circuit. In addition, manual switches 57 and 58 are connected between the battery 53 and each alarm lamp 55, 56, respectively.

Here, one of the manual switches 57 and 58 is for deep handling, and the other switch 58 is for cross boarding.

Further, the first warning lamp 55 is used to display a light-emitting indication when the machine is being handled too hard, and the second alarm lamp 56 is used to display a light-emitting display when the machine is being overloaded.

Furthermore, each of the above-mentioned alarm lamps 55 and 56 is provided on the operation panel 59 in the operation operation section 15, so that the operator can easily see each of these lamps 55 and 56 visually.

Next, a first timer 60, which is a delay member, is connected in parallel to the series circuit of the first alarm lamp 55 and the solenoid 48, and a time limit contact 60a, which is turned on when the timer 60 times up, is connected in series with a buzzer 61, which is an alarm device. A circuit is connected in parallel to the timer 60, and a second timer 62, which is a delay member, is connected in parallel to the series circuit of the second alarm lamp 56 and the solenoid 49.
The second timer 6 is connected to a series circuit of the time limit contact 62a which is turned on by the time amplifier 2 and the buzzer 63 which is an alarm device.
2 is connected in parallel to each buzzer 61.
, 63 use different vibration frequencies, and when the time set by the timers 60 and 62 has elapsed, the buzzers 61 and 63 are used to notify abnormal conditions in the hydraulic system and the vertical conveyance device 37. It is configured to do so.

The present invention is constructed as described above, and when performing harvesting work, after switching the select switch 54 to the automatic operation side and turning it on, the microswitch 52 is activated to lift and transport shells by the vertical transport device 37. When the culm base of the culm is detected, the contact 52a is turned on to turn on the lamp 55 and at the same time drive the solenoid 48, so the switching valve 50 is switched and the hydraulic oil from the hydraulic pump 46 is diverted to the other side of the cylinder 44. The piston rod 45 supplied to the chamber 44b and connected to the second connecting rod 43 moves in the direction of arrow a in FIG. 3, and as a result, the vertical conveyance device 37 moves counterclockwise (deep handling side)
The angle of inclination becomes steeper.

Next, the shell culm transported by the vertical transport device 37 is inserted into the handling chamber through the inlet supply plate 27 and the handling port, and when this shell culm hits the sensor arm of each of the detection devices 38, 39, each micro switch 40. 41 each contact 40a, 41
b are activated to light the lamp 56 and at the same time excite one of the solenoids 49.

As a result, the electromagnetic switching valve 50 switches and the hydraulic pump 4
6 is supplied to the chamber 44a on one side of the cylinder 44 and pushes up the piston rod 45 connected to the second connecting rod 43 in the direction of the arrow in FIG. side) and make the angle of inclination gentler.

At this time, for example, if the culm is in contact with only one of the detection devices 39, each contact 40 of the microswitches 40, 410
Since both lamps a and 41b are off, each lamp 55,
56 and each of the solenoids 4B and 49 are cut off, and the vertical conveyance device 37 stops swinging while maintaining the tip of the culm between the sensor arms of the detection devices 38 and 39.

Moreover, each solenoid 4 in the electromagnetic switching valve 50
When B, 49 is energized, each of these solenoids 4
Since each alarm lamp 55, 56 corresponding to 8.49 lights up, if each of these lamps 55, 56 continues to display the light emission state for a predetermined period of time or more, it operates simultaneously with the depth adjustment. Time limit switch 60a of timer 60.62.

62a turns on and each of these alarm lamps 55°56
and buzzers 61 and 63, the hydraulic system and vertical conveyance device 3 are activated.
Contact point 40a of each microswitch 40, 41 that detects the culm length of the reaped husk culm, By switching 41a, the solenoid 48
．． When 49 is excited, the timer 60.62 is activated in conjunction with this automatic handling depth adjustment starting operation, and after a certain period of time has elapsed, the timer 60.62's time limit switch 60a.

The buzzers 61 and 63 are actuated via the pins 62a to notify abnormal continuation of the handling depth adjustment operation, and prevent an increase in the threshing load when moving to the deep handling side and unhandled grain when moving to the cross-cutting side. be.

In addition, when the solenoid 48.49 malfunctions due to a failure of the microswitch 40, 41.52, the depth range determination or the limit switch (not shown), the timer 60.62 is activated after a certain period of time. The buzzers 61 and 63 are sounded through the switches 60a and 62a to notify the user, and if the microswitch 40 casing or the microswitch 41 or 52 is turned on continuously for a certain period of time or more due to burnout or straw wrapping, etc., the same as above The buzzers 61 and 63 are activated via the timers 60 and 62 to notify them of the failure.

Furthermore, when the vertical conveyance device 37 is swung toward the planking side using the manual switches 57 and 5B, one switch 5 is used.
8 to the deep handling side, the other switch 57 is turned on, and the handling depth is adjusted by manual operation, and the switches 57 and 58 are turned on continuously for a certain period of time or more. When activated, the buzzer 6L63 is activated via the timer 60, 62 in the same way as described above to warn of abnormal operation.

It is preferable that the set time of the timers 60 and 62 be the time required to move the vertical conveyance device 37 between the deep handling position and the cross-cutting position by energizing the solenoids 48 and 490.

As is clear from the above embodiments, the present invention provides a structure in which the handling depth of the cut culm is adjusted by displacing the vertical conveying device 37 according to the length of the cut culm. It is equipped with a delay member such as a timer 60, 62 that detects the automatic adjustment start operation, and the delay member 60, 62 is interlocked and connected to an alarm device such as a buzzer 61, 63 that is activated after a certain period of time when the handling depth is automatically adjusted. At the same time, the alarm device 6L6 is also activated when the handling depth of the vertical conveyance device 37 is manually operated.
3, the delay members 60 and 62 are interlocked and connected to the manual switches 57 and 58 so that even if the limit switch for adjusting the handling depth is damaged, the failure can be quickly dealt with, and the damage can be prevented from expanding. Even if the threshing load increases due to a failure on the deep-handling side, the danger can be avoided before the threshing machine 6 is damaged, and even if a failure on the cross-cutting side occurs, the occurrence of unhandled items can be prevented. In addition, even if the swinging of the vertical conveyance device 37 is interrupted due to contact with a foreign object, the accident can be repaired with minimal damage, and the related devices can be handled safely by preventing damage from spreading. It has remarkable effects such as being extremely practical.

[Brief explanation of drawings]

FIG. 1 is a side view of the combine harvester according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a system diagram showing a long and short culm automatic adjustment mechanism.
FIG. 4 is an electrical circuit diagram for operating the length/short culm adjustment mechanism and for operating the alarm device. 3T... Vertical conveyance device, 57.58... Manual switch, 60.62... Timer (delay member), 61.63.
...Buzzer (alarm device).

Claims (1)

[Scope of utility model registration request] In a structure in which the handling depth of the husk is adjusted by displacing the vertical conveyance device 37 according to the length of the cut culm, a delay member detects an automatic handling depth adjustment start operation of the vertical conveyance device 37. 6
0.62, and a delay member 60, 6 is installed in the alarm device 61, 63 which is activated after a certain period of time when the handling depth is automatically adjusted.
2 are interlocked and connected, and the delay member 60.62 is connected to the manual switch 57.5 so that the alarm device 61.63 can be activated even when the handling depth of the vertical conveyance device 37 is manually operated.
8. A combine harvester characterized by being configured to be interlocked and connected to a