JPH0617409U - Combine direction control device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a combine that can prevent uncut areas and the like when the direction of the aircraft is manually corrected. [Construction] A lamp for indicating whether automatic direction control is turned on or off is provided as a monitor lamp 25a for displaying the detection results of the direction sensors 11 and 12 during manual control, and functions as a guide for operator alignment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides an automatic direction control device that controls the traveling direction of the machine body by detecting the position of the grain culm by the direction sensor, and a manual direction control device that controls the traveling direction of the machine body by the steering operation tool provided in the control section. The present invention relates to a combine direction control device.

[0002]

[Prior art]

 It is possible, for example, to provide a pilot lamp that displays the ON / OFF state of automatic control in the automatic direction control device of the combine, which controls the ON / OFF of the left and right side clutches based on the detection result of the direction sensor, and imitates the grain row. It is already known from JP-A-62-24604. Further, a combine equipped with both a manual direction control device and an automatic direction control device is also known.

[0003]

[Problems to be solved by the device]

 By the way, in a combine equipped with both a manual direction control device and an automatic direction control device, the manual direction control may be performed by a steering operation tool provided in the control section instead of the automatic direction control by the direction sensor depending on the cutting conditions. However, in this manual direction control, unlike in the automatic direction control, it is necessary for the operator to directly adjust the position with the steering operation tool while sitting on the control section. In some cases, the tip of the divider was blocked by the fallen grain culms and was not visible, so it was not possible to correct the direction properly, and there was the problem that uncut areas or strips could occur.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention uses a pilot lamp that displays the on / off state of automatic direction control as a monitor lamp that displays the detection result of the direction sensor during manual control, and adjusts the monitor lamp for operator alignment. The feature is that it enables proper manual direction control by functioning as a guide.

[0005]

[Action]

 The napped culms introduced into the stem culm introduction route as the machine progresses are sequentially cut and harvested by a reaping device. Depending on the cutting conditions, the direction control of the machine will be performed efficiently by using automatic direction control with a direction sensor and manual direction control with a steering operation tool. In particular, when performing reaping work by manual direction control, turn off the automatic direction changeover switch and then manually control by the steering operation tool provided in the control section. In that case, if the grain culm to be mowed is a fallen material and the divider tip is obstructed by the fallen grain culm and it is difficult to see, check the monitor lamp and refer to the detection result of the direction sensor to correct the direction properly. The airframe follows the line and advances.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a combine 1 is provided with a pair of left and right pulling devices 2 and 2 at the front of a machine body having left and right crawler traveling devices (not shown). ing. Further, left and right dividers 3 and 3 and a middle divider 4 are provided in the lower front portion of the raising devices 2 and 2, and two stalk-culm introduction paths A1 and A2 are formed between the dividers. Then, the napped culms introduced into the stalk culm introduction paths A1 and A2 along with the progress of the machine body are cut by a cutting blade (not shown) and transferred to the handling depth carrier 5 provided at the rear. Here, the handling depth carrier 5 adopts a well-known structure composed of a stocker side carrier chain 6 and an ear side locking carrier band 7, and by moving the front part up and down with the rear part as a fulcrum, The depth at which the grain culms are inserted into the threshing device 8 can be adjusted by changing the holding position of the grain. Further, handling depth sensors 9 and 10 are provided in the tip transfer passage of the handling depth carrier 5, whereby the culm length can be detected and the handling depth can be automatically controlled. The direction sensors 11, 12 fixed to the left and right divider frames 3a, 4a face and face the introduction path A2 on the side of the cut land among the culm introduction paths A1, A2. By contacting the sensor bars 11a and 12a of the above with the napped culms introduced into the stem culm introduction path A2, the relative positional relationship between the machine body and the grain culms can be detected.

Further, a control section 13 is provided on the right side of the front part of the airframe, and an operation tower 16 provided in front of the step 15 of the control seat 14 has an operation lever for operating left and right side clutches and brakes. 17, 18, a key switch 19, a direction fine adjustment switch 20 (a steering operation tool) and the like are provided. The side clutch / brake operation levers 17 and 18 are mechanically connected to a side clutch device and a brake device (neither shown) provided in the traveling transmission case by rods, links, or the like. The manual priority switches 21 and 22 are provided at the base of the lever. The manual priority switches 21 and 22 are turned on at the side clutch “disengaged” position of the side clutch / brake operation levers 17 and 18. Further, on the side panel 23 on the left side of the cockpit 14, a handle barrel tachometer 24, a monitor lamp group 25, a forward / rearward speed change lever 26, a continuously variable speed change lever 27, a pretreatment elevating lever 28, a reaper / cutting machine are arranged in order from the front. Threshing clutch levers 29, 30 and the like are provided, and a cover 31 slightly higher than the side panel 23 is provided on the side of the side panel 23 on the supply port side of the threshing device 8.

The cover 31 plays a role of preventing dust generated during the grain culm transportation process or the threshing part from being blocked by the standing wall and scattering to the control part 13 side, and the upper direction of the cover 31 is automatically controlled from the front. An automatic direction switching switch 32 for turning the device on and off, an automatic handling depth switch 33 for turning the handling depth on and off, and a shallow / deep manual operation switch 34 for manually controlling the handling depth are provided. Further, a relatively wide cover flat surface h having a palm size is formed behind the shallow / deep manual operation switch 34, and the operator puts his / her wrist on the flat surface h and is in a comfortable posture with a relatively frequent use. A large number of shallow and deep manual operation switches 34 can be snapped to the left and right. In addition, the shallow / deep manual operation switch 34 is wired so that when the switch is operated to the right side, the handling depth carrier 5 is operated to the deep handling side, and conversely when it is operated to the left side, it is operated to the shallow handling side. Therefore, the operating direction of the manual operation switch 34 and the operating direction of the handling depth carrier 5 coincide with each other, so that erroneous operation can be prevented and operation can be performed with a good feeling. Moreover, since the shallow / deep manual operation switch 34 is provided midway on the same line as the handling depth conveying section as seen from the operator, the handling depth can be adjusted and checked without changing the line of sight. is there.

Next, the details of the direction control device will be described. The direction sensors 11 and 12 have switches Ra, Rb, La, and Lb built in their respective cases, and each switch is connected to the grain bar of the sensor bars 11a and 12a. Turns on and off depending on the contact state of. That is, as shown in FIG. 2, the switch Ra is turned on and the switch Rb is turned off in the zone a where the sensor bar 11a of the rightward direction sensor 11 is separated from the grain culm. Further, as a result of the sensor bar 11a coming into contact with the grain stalk and rotating, when entering the proper b zone, both the switches Ra and Rb are turned off. The switch Rb is turned on and the switch Ra is kept off in the c zone closest to the grain culm. Similarly, in the leftward sensor 12, the switch Lb is turned on in the a'zone, the switch La is turned off, both the switches La and Lb are turned off in the b'zone, the switch La is turned on in the c'zone, and the switch Lb is turned on. Turns off.

The switches Ra, Rb, La and Lb are incorporated in the direction control circuit shown in FIG. 3, and in the circuit diagram, the power supplied from the battery via the key switch 19 is the automatic direction control circuit. It is connected to the changeover switch 32 of the device. Further, the changeover switch 32 is an automatic control controlled by a combination of a manual control circuit including the direction fine adjustment switch 20 (steering operation tool) and switches Ra, Rb, La, Lb of the direction sensors 11 and 12. Branched to the circuit. Further, the manual / automatic control circuit finally operates the right side solenoid 35 for disengaging the right side clutch to turn the aircraft to the right, and the left side solenoid to disengage the left side clutch to turn the aircraft to the left. It is connected to the solenoid 36. Each solenoid 35, 36 drives an operating pin (not shown), and the operating pin intermittently operates the side clutch gear provided in the traveling transmission case by its cam surface. Reference numeral 37 denotes a relay provided in the automatic control circuit, which is connected to the manual priority switches 21 and 22 and the automatic changeover switch 32 is switched to the automatic side so that the side clutch / brake operation levers 17, When 18 is turned off, the normally closed contact NC of the relay 37 is turned off and the automatic direction control is turned off. The monitor lamp 25a for direction control provided in the monitor lamp group 25 is connected to the NC contact of the relay 37 described above.

In the directional control device configured as described above, when the automatic direction changeover switch 32 is switched to the automatic side, the monitor lamp 25a lights up through the NC contact of the relay 37 to indicate that the automatic directional control state is set. . When the vertical culm culms are introduced into the grain culm introduction path A2 as the aircraft progresses, the left and right direction sensors 11, 12 detect it, and the switches Ra, Rb, La, Lb of the direction sensors 11, 12 are turned on. The left and right solenoids 35 and 36 are appropriately energized by a combination of off-operations to automatically control the direction. In particular, as shown in the operation diagram of FIG. 4, when the sensor bar 11a of the rightward sensor 11 is located in the c zone, the fuselage is indicated by an arrow except when the sensor bar 12a of the leftward sensor 12 is in the b'zone. If the sensor bar 11a is located in the a zone as shown in the right direction, the aircraft is left oriented except when the sensor bar 12a of the left direction sensor 12 is in the a'zone. In other cases, the aircraft will go straight. When the operator operates one of the left and right side clutch / brake operation levers 17 and 18, the manual priority switches 21 and 22 are turned on, the NC contact of the relay 37 is opened, and the automatic control circuit is turned off. Further, the monitor lamp 25a is also turned off.

Further, when performing the mowing work by the manual direction control according to the mowing condition, the changeover switch 32 is switched to the manual side, and the mowing work is performed using the direction fine adjustment switch 20 (steering operation tool). In this case, when the direction fine adjustment switch 20 is operated to the right or left, the right solenoid 35 or the left solenoid 36 is excited, and the right and left side clutch are intermittently cut and operated. Or proceed with fine adjustment to the left. Then, in this manual direction control state, when the direction fine adjustment switch 20 is operated, the detection results of the direction sensors 11 and 12 are notified by two state displays of the monitor lamp 25a being on and off. That is, when the direction fine adjustment switch 20 is operated to the right to correct the aircraft to the right, when the switches Lb and Rb of the direction sensors 11 and 12 are on, the monitor lamp 25a is switched from the power source to the changeover switch 32. Power is supplied through the direction fine adjustment switch 20 and the direction sensor switches Lb and Rb to turn on the lamp 25a. In this case, the fact that the switches Lb and Rb are ON means that the right sensor bar 11a is in the c zone and the left sensor bar 12a is in the a'zone, and the direction sensor detection result also corrects the aircraft to the right. Tells you that you need to. Similarly, when the direction fine adjustment switch 20 is operated to the left, the monitor lamp 25a is turned on when both the switches La and Ra are on. In this case, the right sensor bar 11a is located in the a zone, and the left sensor bar 12a is in the c'zone, and the sensor detection result also indicates that it is necessary to correct the aircraft to the left. When the aircraft is corrected to the proper position by operating the direction fine adjustment switch 20, any one of the switches Rb, Lb or Ra, La is turned off, the power supply is cut off, and the monitor lamp 25a is turned off. Turn off the light. In that case, since the direction sensor determines that the direction correction of the machine is not necessary, the operator immediately ends the operation of the direction fine adjustment switch 20 and advances the machine straight.

As described above, the monitor lamp 25a is turned on when the operation direction of the direction fine adjustment switch 20 is appropriate, and is turned off when properly corrected to inform the operator. Therefore, even if the tip of the divider cannot be seen due to the stalks that have fallen over, the operator can make an appropriate alignment just by checking whether the monitor lamp 25a is turned on or off. The reaping work can be carried out smoothly without coming off. Moreover, since the monitor lamp 25a is provided midway on the line of sight from the cockpit 14 where the right divider 3 is desired, the operator can check the monitor lamp 25a at the same time as the right divider 3 without changing the line of sight. The work can be done safely. Further, the monitor lamp 25a does not light up only when the automatic directional control device is switched to the operating state as in the conventional case, but the combination of the direction fine adjustment switch 20 and the direction sensors 11 and 12 is also provided during the manual directional control. Since each of the switches is turned on by turning on / off each switch, and observing the turning on / off state of the monitor lamp 25a in that case, disconnection of the direction fine adjustment switch 20, the direction sensors 11 and 12, or In addition, it is possible to detect failures, etc., and these checks can be easily performed on the spot without specially preparing a failure diagnosis device such as a tester.

In the embodiment described above, the direction control circuit is composed of a switching circuit which can be constructed at low cost, but the detection result of the direction sensor is monitored by the monitor lamp 25a even during manual control using a microcomputer. In the embodiment, the steering operation tool is the direction fine adjustment switch 20. However, the steering operation tool is the mechanically linked side clutch / brake operation levers 17 and 18. The detection result of the direction sensor may be displayed by the monitor lamp 25a when the levers 17 and 18 are operated.

[0015]

[Effect of device]

 Since the present invention is configured as described above, it is possible to perform the work by properly using the automatic direction control by the direction sensor and the manual direction control by the steering operation tool depending on the cutting conditions. Since the monitor lamp displays the detection result of the direction sensor during manual direction control, the operator can refer to the monitor lamp to correct the direction even when the tip of the divider is difficult to see due to a fallen material, etc. It is possible to carry out reaping work smoothly by keeping uncut or keeping the ridges under proper and proper alignment.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of a combine.

FIG. 2 is a plan view showing the operation of the direction sensor.

FIG. 3 is a circuit diagram of a direction control device.

FIG. 4 is an operation diagram of the automatic direction control device.

[Explanation of symbols]

 11 right direction sensor 12 left direction sensor 20 direction fine adjustment switch (steering operation tool) 25a monitor lamp 32 changeover switch

Claims (1)

[Scope of utility model registration request] 1. An automatic direction control device for controlling a traveling direction of a machine body by detecting a position of a grain culm by a direction sensor, and a manual direction control device for controlling a traveling direction of the machine body by a steering operation tool provided in a control section. In the combine, a monitor lamp is provided in the direction control circuit, and the monitor lamp is lit and displayed when the automatic direction changeover switch is turned on and the detection result of the directional sensor is lit and displayed during manual direction control. The combine direction control device.