JP3249722B2 - Work machine display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device of a work machine for displaying a plurality of types of operation information on a display means.

[0002]

2. Description of the Related Art For example, in a display device of a working machine such as an agricultural machine or a construction machine such as a combine machine, a plurality of types of operation information, specifically, machine components (specifically,
Operating information indicating the operating state of sensors and actuators, etc.) is displayed on the display means to notify the operator. However, conventionally, in order to confirm the content of each operating information, the operator presses the key. It was necessary to switch the display by operating a button switch or the like. Further, the display means displays the operation information on a plurality of display portions including bar graphs, numbers, and the like (for example, Japanese Patent Application Laid-Open No. 3-107822).
Reference).

[0003]

Therefore, in the above-mentioned conventional display device for a working machine, even if it is determined whether or not each part of the machine is operating normally over time, for example, at the start of operation of the machine, In order to check the necessary operation information, the operator has to operate a switch or the like to switch the display, so that the operation is complicated, and a plurality of types of operation information are divided and displayed on a plurality of display portions. Therefore, there is a problem that it is not easy to confirm the display contents. The present invention has been made in view of the above circumstances, and an object of the present invention is to display necessary operation information as image information in accordance with a work state on a display screen without operating a switch or the like. To automatically check the operating state of the machine so as to eliminate the above-mentioned disadvantages of the prior art.

[0004]

Means for Solving the Problems The configuration according to claim 1
Is a work machine that displays multiple types of operation information on display means.
A display device, wherein the display means operates the plurality of types.
It consists of an image display device that displays information as image information.
The plurality of types of operation information displayed on the image display device.
Automatically and selectively according to the work status
Control means is provided, and the plurality of types of operation information are
Operating time information, power unit speed information and load information
To detect whether the machine is in the actual working state
Work state detecting means is provided, and the control means
When the rotation speed of the force device is less than the set rotation speed, the operation time
Information is displayed, and the rotation speed of the power unit is equal to or higher than a set rotation speed.
In the case of, the machine detects actual work
Rotation of the power unit until a state is detected.
Number information is displayed, and a machine
As the actual working state is detected,
The load information of the power plant is configured to be displayed.
Several types of operation information, including machine model information,
Power off from the drive power supply of the machine
ON state to turn on the power supply from the drive power supply to each part
And a power start state for starting the power unit.
The main switch, which is freely configured, is provided.
The control means is configured to switch the main switch from an off state to an on state.
The model information is stored at least in
The point is that it is configured to display at a fixed time. Sand
Chi, according to the first aspect, in accordance with the working state of the machine, a plurality of kinds of operation information is displayed as image information to the image display device which is selectively and automatically switched by the display means .

Therefore, the operator does not need to operate a switch or the like to switch the display to confirm necessary operation information, so that the operation is not complicated. Rather than displaying each piece of operating information in multiple display parts, it is possible to easily check the operating state of the machine by looking at the display screen of the image display device that switches and displays multiple types of operating information as image information. As a result, a display device for a working machine having excellent operability and readability can be obtained.

According to the first aspect of the present invention, after the power unit is started, if the rotational speed is less than a set rotational speed, operating time information of the machine is displayed as operating information, and the rotational speed is set to the set rotational speed. If the number is equal to or more than the number, the rotation speed information of the power unit is displayed as operation information until the machine is in the actual working state. Is displayed.

Therefore, at the start of operation of the machine or the like, necessary operation information is automatically switched in accordance with the start-up state of the power unit and the transition to the actual work state (for example, in the case of combine harvesting). Since the displayed information is displayed, the operator can easily determine whether or not each part of the machine has started up normally .

Further, according to the first aspect of the present invention , the main switch is switched from an off state in which power supply from the drive power supply to each part of the machine is turned off to an on state in which power supply from the drive power supply to each part of the machine is turned on. When operated, machine type information is displayed as operation information for at least a predetermined time, and after the predetermined time elapses, the operation time information of the machine is used as operation information according to the rotation speed state of the power unit and the presence or absence of transition to the work state. , The rotation speed information of the power unit and the load information of the power unit are displayed.

Therefore, since the model information is always displayed at the start of the operation of the machine, it is possible to confirm the display and prevent a situation in which a wrong model is controlled and a normal operation cannot be performed.

[0010] According to a second aspect of the present invention, there is provided a display switching device.
Moving operation means is provided, and the control means
As the means are operated, the operating time information and
Rotation speed information of the power unit, load information of the power unit,
Are sequentially displayed. Sand
According to the configuration of claim 2, in the configuration of claim 1 , for example, even when the machine is in an actual working state and the load information of the power plant is displayed as the operation information, When it is determined that it is necessary, by operating the manual operation means for switching the display, the operating time information of the machine, the rotation speed information of the power unit, and the load information of the power unit are sequentially displayed, so that the display is performed. The device can be used more conveniently, so that a favorable measure of the configuration of claim 1 is obtained.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combine as a working machine will be described below with reference to the drawings. As shown in FIG. 1, the combine is provided with a reaping unit 12 at a front portion of a body V provided with a pair of right and left crawler traveling devices 11, and a steering unit 13 and a cut culm are provided behind the reaping unit 12. A threshing unit 14 for threshing and sorting, a Glen tank 15 for storing grains supplied from the threshing unit 14, and the like are mounted.

The cutting section 12 includes a weeding tool 16 attached to the tip, a raising device 17 for raising the cereal culm in the field, a cutting blade 18 for cutting the root of the cultivated cereal culm, and a cut cereal culm. Transport device 19 for transporting to the threshing unit 14
It has. Further, an ultrasonic sensor S1 for detecting the height of the cutting unit 12 from the ground and a stock sensor S2 for turning on when the grain stalk touches to detect that the cutting operation is being performed are provided. Height information from the ground by the ultrasonic sensor S1 is used for cutting height control when cutting the culm,
The detection information during the harvesting operation from the stock sensor S2 is used as one of the control activation conditions.

A plurality of weeds 16 according to the number of cutting strips
Are arranged side by side at the tip of the cutting unit 12, but the direction sensor S3 () for detecting whether or not the plurality of weeding tools 16 are appropriately positioned between the strips of the planted grain culm. (Not shown)
Is provided. The detection information of the direction sensor S3 is used for controlling the direction of the body V. Specifically, a pair of sensor bars, whose base ends are supported by the weeding tool 16 so as to be swingable in the front-rear direction and project left and right, go straight as they are unless they touch the planted grain culm, When the sensor bar touches the planted grain stem, the drive of the left and right crawler traveling devices 11 is controlled to steer the machine body V to the opposite side of the touched bar.

The left and right crawler traveling devices 11 are configured to be individually driven to move up and down with respect to the body V. As a result, it is possible to perform the rolling control for maintaining the body V horizontal regardless of the inclination of the ground or maintaining the body V at the set angle. For this purpose, an inclination sensor S4 for detecting the inclination of the body V with respect to the horizontal is provided.

The threshing unit 14, as shown in FIG.
1, a feed chain 22 for transporting grain culms supplied from the mowing unit 12, a sorting device B including a torsion 23 and a rocking sorting plate 24, a first port 2 for grain recovery.
5, and a second port 26 for collecting a mixture of grain and straw waste. Of the processed material threshed in the handling room A, the single-grained product is supplied to the receiving net 2 provided at the lower part of the handling room A.
7 and leaked to the sorting device B,
7 falls into the sorting device B from the rear end.

The swinging sorting plate 24 of the sorting device B includes
3 includes a Glen pan 28 located above, a chaff sheave 29 located behind and a Glen sheave 30 located below. In the chaff sheave 29, the interval between adjacent strip-shaped members (hereinafter referred to as a “chaff opening”) is changed by simultaneously changing the angle of a plurality of strip-shaped members arranged in the processing object transfer direction around the horizontal axis. It is configured to be. A chaff opening sensor S8 (see FIG. 4) using a potentiometer for detecting the opening degree of the adjacent band plate chaff is provided based on the angle around the horizontal axis of the band-shaped member.

The torsion 23 is for blowing off the straw chips on the swinging sorting plate 24, and the wind is generated by changing the opening of the fan case cover 23a.
That is, as the opening degree increases, the amount of air that escapes from the opening increases, and the wind force applied to the processed material on the swing sorting plate 24 (hereinafter referred to as toumi wind force) decreases. A toumi wind force sensor S9 (see FIG. 4) that uses a potentiometer to detect toumi wind force based on the opening degree of the fan case cover 23a is provided.

With respect to the sorting device B, the control (sorting control) for adjusting the opening degree of the chaff and the wind power of the turtle according to the conditions such as the amount, type, and humidity of the processed material is performed as described above.
The grains leaking from the grain sieve 30 are oscillated on the sorting plate 2
The mixture of the grain and the straw waste collected from the first port 25 provided below and stored in the Glen tank 15 and dropped from the rear end of the chaff sheave 29 or the rear end of the Glen sheave 30 is discharged from the second port 26. It is collected and returned to the swing sorting plate 24.

FIG. 3 shows a power transmission system. The output of, for example, a diesel engine E as a power unit is transmitted to the threshing unit 14 via a threshing clutch 31 and transmitted to a transmission unit 34 of the crawler traveling device 11 via a traveling clutch 32 and a continuously variable transmission 33. Is transmitted.
Part of the output transmitted to the transmission section 34 is transmitted to the reaping section 12 via the reaping clutch 35. A threshing switch S7 for detecting the on / off state of the threshing clutch 31 is provided. The transmission section 34 is provided with a switching mechanism for switching the steering state between a forward state, a reverse state, and a neutral state. The neutral sensor S10 detects the neutral state of the steering, and the reverse sensor S11 detects the reverse state. (See FIG. 4).

A continuously variable transmission 33 for increasing or decreasing the vehicle speed
Is manually operated by a shift lever and automatically operated by an electric motor. In other words, the engine speed decreases as the load on the engine E increases, so that the engine runs at a constant speed when the engine speed is optimal, but when the load increases and the engine speed decreases, the vehicle speed is reduced and the harvesting is performed. The amount of threshing to reduce the load,
Conversely, if the load becomes small and the engine speed becomes higher than the optimal speed, the continuously variable transmission 33 is shifted to increase or decrease the traveling speed so as to increase the vehicle speed and increase the cutting amount, that is, the threshing process amount. Vehicle speed control is performed. The engine speed is detected by a speed sensor S5 comprising an electromagnetic pickup that applies a magnetic field to the flywheel ring gear of the engine E and obtains a sine wave having a frequency corresponding to the number of teeth per unit time. The vehicle speed is detected by a vehicle speed sensor S6 provided in the mission section.

As shown in FIG. 4, the sensors S1-S
Eleven pieces of detection information are input to a main control unit H configured using a microcomputer. On the other hand, the main control unit H
The actuators for cutting height control, direction control and rolling control (electromagnetic valves for hydraulic control, etc.) M1 to M3
Also, drive signals are output to the electric motors M4 to M6 for controlling the vehicle speed, adjusting the opening degree of the chaff, and adjusting the wind power of the turtle. Then, the main control unit H drives the actuators M1 to M3, the electric motors M4 to M6, and the like based on the detection information of each sensor, the control information set in advance, and the like, and performs each of the above-described controls (cutting height control, Direction control, rolling control, sorting control, vehicle speed control, etc.).

Also, there are an OFF state in which the power supply from the drive power supply to each part of the machine is turned off, an ON state in which power supply from the drive power supply to each part of the machine is turned on, and a power start state in which the engine E is started. A main switch MW configured to be switchable is provided, and information indicating the state of the main switch MW is input to the main control unit H.

A display panel unit C for inputting command information such as start / stop of each control to the main control unit H and displaying various information is provided by a combination of a liquid crystal display module and a membrane keyboard. The body-shaped panel is provided at a position that is easy for the operator of the control unit 13 to see and operate.

On the front surface of the display panel unit C, as shown in FIG. 5, a display screen 1 constituting an image display device for displaying image information and an information input switch constituted by a push button type switch are provided. Key input units 2, 3, and 4 are provided. The display screen 1 is composed of a dot matrix type liquid crystal graphic display, and displays a plurality of types of information such as machine type information, fuel remaining amount, hour meter (machine operation time), engine speed, engine load state, and the like on this screen. Is displayed. That is, display screen 1
Corresponds to a display unit for displaying the plurality of types of operation information. The key input units 2, 3, and 4 include a start / stop switch 2, a changeover switch 3, and a storage switch 4.

The display panel unit C has a display control section 6 for controlling the operation of the display screen 1 and the switches 2, 3, and 4.
And the main control unit H. Display control unit 6
Performs serial communication with the main control unit H and transmits input data of the switches 2, 3, and 4 to the main control unit H,
The display data is received from the main control unit H. The main control unit H
Each control is started / stopped based on the switch input data.

The start / stop switch 2 has a plurality of switches corresponding to each control as shown in FIG. 5 so as to instruct start and stop for each control described above. It is also used. That is, when the switch corresponding to the active control is pressed, the control is stopped, and when the switch corresponding to the stopped control is pressed, the control is activated. The start or stop state of each control is stored in the memory 7 of the main control unit H, and although not shown,
The fact that each control is activated is displayed at the bottom of the display screen 1.

The changeover switch 3 switches control states such as a normal control mode and an inspection mode, and switches the display screen 1
Functions as a manual operation means for switching the display for switching the display contents of. Specifically, the main switch is configured to be switchable between an ON state in which the switch is connected to the power supply voltage by pressing a switch, and an OFF state in which the switch is connected to the ground without pressing the switch. MW
Is operated in the ON state, and the changeover switch 3 is changed to the OFF state while the main switch MW is in the ON state, the inspection mode is activated, while when the changeover switch 3 is in the OFF state, the main switch MW is changed. Is turned on, the normal control mode is started.

Work state detecting means 10 for detecting whether or not the machine is in an actual work state by using the main control section H.
1 is configured. Specifically, the stock sensor S2
And the threshing switch S7 are on, and the neutral sensor S
When 10 and the reverse sensor S11 are off, it is determined that the machine is in the actual working state, otherwise, it is determined that the machine is not in the actual working state.

A control means 100 for selectively and automatically switching the plurality of types of operation information displayed on the display screen 1 using the main control section H in accordance with a work state is provided. The display of the operation information is performed in the normal control mode. The control means 100 displays the model information for at least a predetermined time (for example, two seconds) as the main switch MW is operated from the off state to the on state, and furthermore, the number of revolutions of the engine E is set to the set number of revolutions. When the rotation speed of the engine E is less than a predetermined number (for example, 500 rpm), the machine is in an actual work state by the work state detection means 101. Until this is detected, the rotation speed information of the engine E is displayed, and the load information of the engine E is displayed as the work state detection means 101 detects that the machine is in the actual work state. It is configured to be. Control means 1
00, for example, even when other information is displayed on the display screen 1, the changeover switch 3 is operated (specifically, from the off state to the on state),
The hour meter, the engine speed information, and the engine load information are sequentially displayed.

The display of the operation information will be described with reference to the flowchart of FIG. 6. First, after the model information is displayed for a predetermined time (2 seconds), the control system goes through an initial unstable state and returns to a normal state. Stand by while displaying an error display. When the control system is in a normal state, the engine speed is checked, and until the engine speed reaches 500 rpm or more, FIG.
Hour meter display as shown in (a) is performed and 500r
pm or more, it is determined whether or not an actual work state has been reached (whether or not work conditions are satisfied), and the engine speed is maintained until the work conditions are satisfied, as shown in FIG. Display as a bar graph. When the working conditions are satisfied, FIG.
As shown in (c), the engine load level represented by a number from 1 to 4 (the greater the number, the greater the load) is displayed. During this time, the remaining fuel amount is displayed as a bar graph on the left side of the display screen.

[Alternative Embodiment] The plurality of types of operation information include the operation time information of the machine as described above, the rotation speed information and load information of the power unit (engine E), and the machine type information. The present invention is not limited to this, and may include other pieces of operation information, or may exclude any of these pieces of information, and can be set as appropriate according to the purpose of the machine, work conditions, and the like.

The image display device constituting the display means is not limited to the liquid crystal dot matrix type display screen 1, but may be another image display device (CRT type or the like).

The power unit is not limited to the diesel engine E, but may be another engine.

As illustrated, the work state determination means 101 includes a stock sensor S2, a threshing switch S7, and a neutral sensor S
The determination configuration is not limited to the determination based on each state of the vehicle 10 and the reverse sensor S11, and the determination configuration may be appropriately changed according to the specific configuration of the machine.

The working machine is not limited to the combine shown above, but may be another farming machine, or a construction machine other than a farming machine.

The model information is not displayed for a predetermined time (for example, two seconds) as the main switch MW is turned from the off state to the on state, but is not displayed until the power unit (engine E) is started. It may be displayed.

Next, another embodiment of the control structure for starting the engine E with the main switch MW will be described with reference to FIG.
It will be described based on. In this embodiment, in addition to a contact p (this signal is input to the main control unit H) corresponding to the threshing switch S7, a contact q through which a large current can flow
When the threshing clutch 31 is turned on, the contact p is closed and the contact q is opened. When the threshing clutch 31 is turned off, the contact p is opened and the contact q is turned on. It is configured to close.
The starter switch st, the starter relay SR, the starter power supply ESR, and the neutral sensor S10 which close at the start position of the main switch MW with respect to the contact q.
And a neutral switch Ns that closes when the switch is turned on is connected to form a series circuit. As described above, when the threshing clutch 31 is engaged, the engine is not started. That is, unnecessary operation of the threshing unit 14 at the time of starting the engine is avoided. In this case, the display screen 1 shows the operator with the threshing clutch 3
The message "Please cut threshing" is displayed to prompt the operator to cut 1.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a side perspective view of the threshing unit of the combine.

FIG. 3 is a power transmission diagram of the combine.

FIG. 4 is a block diagram of a control configuration.

FIG. 5 is a front view of a display panel including an image display device.

FIG. 6 is a flowchart showing a control operation.

FIG. 7 is a diagram of a display screen showing a display example of operation information.

FIG. 8 is a circuit diagram showing a main part of a control configuration according to another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 display means 1 image display device 100 control means E power unit 101 work state detection means MW main switch 3 manual operation means

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Shigeo Sato 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References JP-A-4-335819 (JP, A) JP-A-52- 126271 (JP, A) JP-A-63-95490 (JP, A) JP-A-62-58761 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G05B 23/02 A01D 41 / 12

Claims (2)

(57) [Claims] 1. A display device of a work machine for displaying a plurality of types of operation information on display means (1), wherein the display means (1) displays the plurality of types of operation information as image information. is constituted by apparatus (1), wherein plural kinds of operation information of the alternatively in accordance with the working state and automatically switching control means (100) is provided to display the image display device (1), wherein Multiple types of operation information are used to store machine operation time information and power
A work state including whether the machine is in an actual work state, including rotation speed information and load information of the device (E).
Detecting means (101) is provided, and the control means (100) controls the rotation of the power unit (E).
When the number is less than the set number of revolutions, the above operating time information is displayed
And when the rotation speed of the power unit (E) is equal to or higher than a set rotation speed.
The machine is actually operated by the work state detecting means (101).
The power unit until it is detected that
(E) displaying the rotation speed information and detecting the work state;
Means (101) that the machine is in the actual working state
Displays the load information of the power unit (E) as it is detected.
The plurality of types of operation information include machine type information, and an off state in which power supply from a driving power supply to each part of the machine is turned off.
And turning on the power supply from the drive power supply to each part of the machine
ON state and power start for starting the power unit (E)
Main switch (M
W) is provided, and the control means (100) is provided with the main switch (M
As W) is operated from the off state to the on state,
Configured to display the model information for at least a predetermined time
Display device for a working machine that is. 2. A manual operation means (3) for switching a display is provided.
And the control means (100) includes:
The operation time information and the power
Rotation speed information of the device (E) and the load of the power device (E)
The display device for a work machine according to claim 1, wherein the display device is configured to sequentially display the information .