KR100193456B1 - Display of working machine - Google Patents

Abstract

The switching control means 100 is provided selectively and automatically in accordance with the working state of the operation information displayed on the display device 1 of the working machine which displays the plurality of types of operation information as an image. Work state detection means 101 is provided which includes information on the operating time of the machine, information on the rotation speed of the power unit E, and load information of the power unit E, and detects whether or not the work machine is in an actual work state. When the rotation speed of the power unit E is less than the set rotation speed, the operation time information is displayed. When the rotation speed of the power unit E is greater than or equal to the set rotation speed, it is determined by the working state detecting means 101 whether the machine is in an actual working state. In the non-work state, the rotation speed information of the power unit E is determined. Is displayed and the load information of the power unit (E) is displayed in the working state.

Description

Display of working machine

1 is a side view of the combine.

2 is a side perspective view of the threshing portion of the combine.

3 is the power transmission of the combine.

4 is a block diagram of a control configuration.

5 is a front view of a display panel having operation means and display means.

6 is a time chart showing control operation.

7 is a flow chart showing control operation.

8 is a view of a display screen showing display of a control state.

9 is a time chart showing control operation in another embodiment.

Fig. 10 is a circuit diagram showing a main part of a control configuration of another embodiment.

* Explanation of symbols for main parts of the drawings

1: display device 3: control means

100: control means 101: working state detection means

E: Power units S1 to S9: Machine parts

M1 to M6: Machine parts

TECHNICAL FIELD OF THE INVENTION

The present description relates to a display device of a working machine for displaying a plurality of kinds of operation information on the display means.

[Prior art]

For example, as a display device for a work machine such as a combine machine or a construction machine, a plurality of types of operation information in accordance with the change in the working state, specifically, operation information indicating the operation state of each part of the machine (specifically, a sensor or an actuator, etc.) Although the display means is displayed and notified to the operator, conventionally, in order to confirm the contents of each operation information, it is necessary to operate a button switch or the like which the operator presses and change the display. The display device displays the operation information as a plurality of display portions consisting of bar graphs and numbers (see, for example, Japanese Patent Laid-Open No. 3-107822).

[Problem to Solve Invention]

Therefore, as the display device of the conventional working machine, even if it is determined whether each part of the machine is operating normally over time, such as when the machine starts to operate, for example, the operator can manually check the necessary operation information. There is an inconvenience that it is not easy to confirm the display contents because the operation is complicated and the operation is complicated and the plurality of types of operation information are displayed in a plurality of display portions.

The present invention has been made in view of the above situation, and its object is to automatically display the necessary operation information according to the working state on the display screen as the image information even if the operator does not operate the switch etc., so that the operator can easily operate the machine. It can be confirmed so as to eliminate the inconvenience of the prior art.

[Means for solving the problem]

In order to achieve the above object, according to the configuration of claim 1, a plurality of kinds of operation information are selectively and automatically changed in accordance with the working state of the machine and displayed as an image on the display device. Therefore, in order to confirm the necessary operation information as in the prior art, the operator does not need to operate the switches and change the display one by one, thus eliminating the trouble of operation and at the same time, instead of displaying each operation information in a plurality of display portions as in the prior art, The operation state of the machine can be easily confirmed by viewing the display screen of the display device which changes and displays the longitudinal operation information as an image, thereby obtaining a display device of a working machine such as operability and readability.

According to the configuration of claim 2, in the configuration of claim 1, the operating time information of the machine is displayed as the operation information when the rotation speed is less than the set rotation speed after the power unit is started. When the machine is not in the actual working state, the rotation speed information of the power unit is displayed as the operating information, but when the machine is in the actual working state, the load information of the power unit is displayed as the operating information.

Therefore, during operation of the machine, necessary operation information is automatically changed and displayed according to the transition of the operating state of the power unit and the actual work state (for example, the cutting operation state of the combine). Can be easily determined, and suitable means of the configuration of claim 1 are obtained.

According to the configuration of claim 3, in the configuration of claim 2, when the main switch is operated in an off state in which power is not supplied from the driving power source to each of the machine parts and is turned on to supply power from the driving power source of each machine part, The model information is displayed at least for a predetermined time, and after the predetermined time has elapsed, the operating time information of the machine and the load information of the power unit are displayed as the operation information according to the rotational state of the power unit and the transition of the working state. .

Therefore, the type information is displayed at the time of operation of the machine, so that the display can be checked and control of the wrong type can be prevented so that the normal operation cannot be performed. Means are obtained.

According to the configuration of claim 4, in the configuration of claim 2 or 3, for example, when the machine determines that the operator is required even when the load information of the power unit is displayed as the operation information as the actual work state, the manual operation means for switching the display is provided. The display device can be used more conveniently by operating and displaying the operating time information of the machine, the rotation speed information of the power unit and the load information of the power unit, and a suitable means of the configuration of claim 2 or 3 can be obtained.

According to the configuration of claim 5, when the driving power is turned on, the normal mode is preferentially activated. Therefore, even if the switching manual operation means for starting the test mode is changed due to a failure and becomes impossible, at least the normal mode can be started.

[Embodiment of the Invention]

EMBODIMENT OF THE INVENTION Hereinafter, embodiment when the present invention is applied to the combine as a working machine is described with reference to drawings.

As shown in FIG. 1, the combine is provided with a cutting portion 12 in front of the body V having a pair of right and left crawler traveling apparatuses 11 and a control portion 13 behind the cutting portion 12. ), A grain tank 15 for storing grains supplied to the threshing portion 14 for threshing and selecting the harvested rice stems is mounted.

The slicing part 12 is a cutting knife 18 and a harvested rice stalk which cut the lower stem of the rice stem which produced the standing device 17 which raises the rice plant stem which is attached to the tip part. The conveying apparatus 19 which conveys to the threshing part 14 is provided. And when the ultrasonic sensor (S1) for detecting the height from the ground of the cutting unit 12 and the rice stems are contacted, the lower stem sensor (S2) for detecting that the cutting operation is installed is installed. The height information from the ground by the ultrasonic sensor S1 is used for cutting the height when harvesting rice stems, and the detection information during the cutting operation from the lower stem sensor S2 is used as one of the controller dynamic conditions.

Directions for detecting whether or not a plurality of branching outlets 16 are provided at the distal end of the cutting unit 12 in accordance with the number of cutting rows, but whether the plurality of branching outlets 16 are properly positioned between the rows of rice stems on which they stand. A sensor S3 (not shown) is provided. The detection information of the direction sensor S3 is used for the direction control of the body V. Specifically, if a pair of sensor bars protruding from side to side are freely supported in the front and rear direction at the proximal end of the dispensing port 16 and do not touch the rice stems standing at the same time, they go straight and if they touch the rice stems standing on either side of the sensor bar, The vehicle V is steered on the opposite side of the bar, and the driving of the crawler traveling device 11 on the left and right sides is controlled.

The right and left crawler traveling apparatus 11 is comprised so that each can drive up / down separately with respect to the base body V. As shown in FIG. This enables the rolling control to keep the body V horizontal and to maintain the set angle regardless of the inclination of the ground. Therefore, the inclination sensor S4 for detecting the inclination of the body V with respect to the horizontal is provided.

The threshing part 14 swings with the feed chain 22 tuyere 23 which conveys rice stems supplied from the handling chamber A scavenging part 12 which accommodates the handling container 21, as shown in FIG. A sorting device 25 for sorting device B from the sorting plate 24 and a sorting ball 26 for recovering a mixture of grain and rice flakes are provided. The isolate | separated thing which threshed in the handling chamber A in the handling chamber A falls from the net 27 provided in the lower part of the handling chamber A to the sorting apparatus B, and the other processing objects are the rear end of the net 27. Falls to the sorting device (B).

The swing selection plate 24 of the sorting device B is composed of a grain pan 28 located above the tuyere 23 and a grain sheave 30 located below the chaff sheave 29 located in the room. . The chaff sheave 29 changes the spacing (hereinafter referred to as rice hull opening) of adjacent large plate members by simultaneously changing the angles of several large plate members juxtaposed in the processing material conveyance direction around the horizontal axis. It is configured to be. The rice hull opening degree sensor S8 (refer FIG. 4) using the potentiometer which detects the adjacent rice hull opening degree by the angle of the horizontal axis center of the said large plate-shaped member is provided.

The tuyere 23 is for blowing away the straw debris on the swinging separator 24, and the wind power is performed by switching the opening degree of the fan case cover 23a. In short, the opening degree is small in wind (hereinafter referred to as wind and wind power). A wind vent wind sensor A9 (see FIG. 4) using a potentiometer for pumping wind vents by the opening degree of the fan case cover 23a is provided.

Regarding the sorting device B, a control (selection control) is performed to adjust the rice hull opening degree and the wind blowing force as described above in accordance with the conditions such as the amount, type, and moisture of the processed material. Meanwhile, the grain falling from the grain sheave 30 is recovered from the first opening 25 installed below the swing sieve plate 24 and stored in the grain tank 15, and the rear end or grain sheave 30 of the rice husk sheave 29 is provided. The mixture of grains and rice straw falling down from the rear end of) is recovered from this mouth 26 and reduced to the swing sorting plate 24.

Next, the power transmission system is shown in FIG. The output of, for example, a diesel engine E as a power unit is transmitted to the threshing unit 14 through the thrusting clutch 31, and at the same time, the crawler traveling apparatus 11 is provided through the traveling clutch 32 and the continuously variable transmission 33. Is transmitted to the mission unit 34. A part of the output transmitted to the mission unit 34 is transmitted to the cutting unit 12 through the cutting clutch 35. On the other hand, threshing switch S7 which detects the on-off state of threshing clutch 31 is provided. The mission unit 34 is provided with a switching mechanism for changing the steering state to the forward state, the reverse state and the neutral state, and a neutral sensor S10 for detecting the neutral state of the steering and a reverse sensor S11 for detecting the reverse state. It is installed (see Figure 4).

The continuously variable transmission device 33 for increasing or decreasing the vehicle speed is operated by the electric motor while simultaneously being operated by the shift lever. In other words, the engine speed decreases as the load of the engine E increases, so when the engine speed is appropriate, the vehicle runs at constant speed, but when the load increases and the engine speed decreases, the vehicle speed is lowered to reduce the cutting amount, that is, the threshing throughput, thereby reducing the load. On the contrary, when the load decreases, the vehicle speed control is performed to increase and decrease the running speed by shifting the continuously variable transmission 33 so that the engine speed is higher than the optimum speed and the vehicle speed is increased, thereby reducing the amount of threshing processing. The engine speed is detected by the rotation speed sensor S5 which consists of an electronic pickup which applies a magnetic field to the flywheel ring gear of the engine E and obtains a sine wave of a frequency corresponding to the number of teeth per unit time. The vehicle speed is detected by the vehicle speed sensor S6 provided in the mission unit.

As shown in FIG. 4, detection information of the sensors S1 to S11 is input to the main control unit H constructed by using a microcomputer. On the other hand, in the main control part (H), each of the actuators for direction control for height control and rolling control (for example, solenoid valves for hydraulic pressure control) (M1 to M3), for motor vehicle speed control for rice hull opening, and for each wind motor wind power control (M4 to M6) Drive signal is output. Then, the main control unit H drives the respective actuators M1 to M3, the electric motors M4 to M6 according to the detection information of each sensor, the preset control information, and the like. , Rolling control, screening control, vehicle speed control, etc.).

And a main switch (MW) configured to be freely switched between an OFF state in which power is not supplied from the driving power to the machine parts, an ON state supplying power from the drive power to the machine parts, and a power starting state for starting the engine E. Is installed and information indicating the state of the main switch MW is inputted into the main control unit H.

An integrated panel in which a command panel such as start / stop of each control is input to the main control unit H, and a display panel unit C for displaying various kinds of information combines a liquid crystal display module and a main brain keyboard. As a result, the operator of the control unit 13 is installed at a position where it is easy to see and operate.

On the front of the display panel unit C, as shown in FIG. 5, a switch for information input comprising a display screen 1 constituting a display device for displaying a plurality of types of operation information as an image and a push button-type switch. The key input parts 2, 3, and 4 are provided. The display screen (1) is composed of a dot matrix liquid crystal graphic display, on which the model information of the machine, fuel level, outer (operation time of the machine), engine speed (speed of the power unit), engine load Multiple types of operation information such as (load of power unit) are displayed. The key input section 2, 3, 4 is composed of a start / stop switch 2 changeover switch 3 and a storage switch 4.

The display panel unit C includes a display control unit 6 for controlling the operation of the display screen 1 and the switches 2, 3 and 4 and the main control unit H. The 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 while receiving the display data from the main control unit H. The main control unit H starts or stops each control in accordance with the switch input data.

The start / stop switch 2 has a plurality of switches corresponding to the respective controls as shown in FIG. 5 so as to instruct start and stop for each of the above-described controls, and each switch is used both for starting and stopping. In short, pressing the switch corresponding to the control in operation stops the control, and pressing the switch corresponding to the control in stop activates the control.

The start or stop state of each control is stored in the memory 7 of the main control unit H, and although not shown, it is displayed below the display arc surface 1 that each control is in the start state.

The changeover switch 3 corresponds to a manual operation means for selectively starting the inspection mode so that the switch is freely switched to the ON state connected to the power supply voltage by pressing the switch and to the OFF state connected to the earth without pressing the switch. Moreover, it is used as a manual operation means for selectively starting other control states, such as a fine adjustment mode and a model setting mode, besides the inspection mode. As shown in FIG. 4, the display screen 1 is operated to change to one control state in a plurality of control states according to the input information from the changeover switch 3 and to display the use of each control state. As shown in FIG. 6A, the control means 100 is operated when the main switch (not shown) is turned ON when the changeover switch 3 is in the ON state (ie, power is supplied to each part of the machine). The inspection mode is configured to operate as the changeover switch 3 changes to the OFF state when the power is turned on, and furthermore, whenever the changeover switch 3 switches from the OFF state to the ON state in the inspection mode. The respective parts of the machine such as the base 12, threshing part 14, engine E, body V, and traveling device 11 are sequentially changed to each individual mode for performing inspections, and the contents of each individual mode are changed. On the display screen (1) It is configured to display.

On the other hand, the inspection of each part of the machine specifically checks the input of the sensors S1 to S9, the output of the actuators and the electric motors M1 to M6, and the like.

Each individual mode is further explained. As an input check, for example, when the direction sensor S3 installed in the cutting section 12 is swung, the display screen 1 displays "direction sensor operation 11", so it is confirmed that the direction sensor S3 is detecting and operating. Can be. As the output check, for example, the cutting section 12 is lifted and at the same time, the operation of the height control actuator M1, which is displayed on the display screen 1 as " swinging lift ", can be confirmed. In the fine adjustment mode, the chaff setting volume (not shown) is manipulated to change the chaff opening degree so as to read the maximum and minimum end positions of the pots constituting the chaff opening degree sensor S8. In the model setting mode, by operating the selector switch 3, the model name to be controlled is displayed one by one, and the memory switch 4 is operated in the ON state while the model name to be controlled (paper type 2 in the drawing) is displayed to store the model name. Do the manipulation. Furthermore, as shown in Fig. 4, the means for setting the model includes the memory 7 as a storage means for storing a plurality of model information using the main control unit H and the display screen as display means for information display. 1) and the memory switch 4 as a manual model selection means. Specifically, the memory switch is stored in a state in which one model information of the plurality of model information is sequentially displayed on the display screen 1 each time the plurality of model information stored in the memory 7 is operated. As (4) is operated in the model selection state (ON state), one model information among the plurality of model information, that is, the displayed model information is set as the model setting information. On the other hand, the memory 7 is made of a nonvolatile memory such as EEPROM.

And the control means 100 which specifies the model to be controlled according to the model setting information set using the said main control part H, and performs control corresponding to the specific model is comprised. On the other hand, although not described in detail, as many control programs as can correspond to all models in the selection range are stored in the memory 7 in advance, and when a model is specified, only a control program used for control of the model is picked up and a separate RAM is provided. It is stored in the memory of the back. Further, by using the main control unit H, the plurality of kinds of operation information (operation time information of the machine, the rotation speed information of the power unit, the load information of the power unit, etc.) displayed on the display screen 1 are changed to the working state. The control means 100 which switches selectively and automatically according to the structure is comprised. On the other hand, display of this operation information is performed in the said normal control mode. As shown in FIG. 6B, the control means 100 enters the driving power when the changeover switch 3 is in any one of the two operation states, i.e., the OFF state, and the normal control state as the manipulator starts up. It is configured to start. 7 shows the main routine of the control algorithm starting from step 200 by this startup. By turning on the main switch MW, the process proceeds to steps 202 and 204, where the model name stored in the model setting mode is displayed for a predetermined time (for example, for 2 seconds). After the predetermined time has elapsed, the process proceeds to step 206, where the control system initially passes the unstable state and waits for the abnormal state to be displayed by the step 208 until the control system becomes a normal state. It proceeds and determines whether the engine speed of the said engine E is more than a predetermined rotation speed (for example, 500 rpm). If the engine speed is less than the set speed, the hour meter is displayed as shown in FIG. 8A by step 212, and the engine speed is set to the set speed or more. It is judged by the work state detection allowance 101 whether it is in a work state (whether or not a work condition is established). It is judged by the key input of the said main control part H, the input from various sensors, etc. whether it is a working state. In the case where it is determined that it is not in the working state, the engine speed is displayed on the bar graph as shown in FIG. 8B by step 216. Likewise, numbers from 1 to 4 (the larger the number, the greater the load). Then, the control means 100 enters into the main routine as the changeover switch 3 is operated from the OFF state to the ON state even when other information is displayed on the display screen 1 in the normal control state, for example. The interrupting routine is provided to sequentially display the hour meter, the engine speed information and the engine load information, and return to the main routine after a predetermined time. In the meantime, the fuel remaining amount is displayed in the bar graph on the left side of the display screen.

The working state detection means 101 for detecting whether the machine is in the actual working state is configured using the main control unit H. Specifically, when the lower stem sensor (S2) and threshing switch (S7) are in the ON state and the neutral sensor (S10) and the reversing sensor (S11) are in the OFF state, it is determined that the machine is in an actual working state. Is set to determine that the machine is not in the working state.

Then, as shown in FIG. 6B, the control means 100 starts an abnormality control mode in response to detecting an abnormality in any one of the respective parts of the machine in the normal bear state, and also displays the display screen 1 from the normal display. The display of the display screen 1 is normally changed as the display is changed to an alarm display which is an abnormal display indicating an abnormal state of the respective parts of the machine and the switching switch 3 is switched between the two operating states in the abnormal control mode. It is configured to return to the display. As an alarm display, a trouble spot etc. appears. On the other hand, in addition to the above alarm display, an alarm sound generated by a buzzer or a flashing display by a lamp may be displayed. In such a case, the alarm sound or the flashing display is stopped by operating the changeover switch 3.

Supplementing the normal display, after starting the normal control state, the model display is performed for 2 seconds, and then the hour meter is displayed and waits. When the engine starts, the engine speed is displayed, and the engine load is displayed according to the actual working state (cut state).

[Other Embodiments]

The manual operation means (telephone switch 3) is not limited to a push button switch but may be a switch such as another slide type. Moreover, the operation means may recognize other operation states by the AC voltage of a different frequency instead of the voltage state.

The operation state of the operation means for starting the normal control state in accordance with the power ON is not set to the OFF state when setting two different operation states to the ON state and the OFF state as in the above embodiment, but may also be the ON state. In this case, the control means is configured to turn on the power in the OFF state, and to operate the control means in the OFF state while the power supply is in the OFF state. As for the model setting means, as shown in Fig. 9 (see Fig. 6A), the control state is changed to the model setting mode and the model selection means (memory switch 4) is operated in the model selection state (ON state). May be configured to operate the model setting operation as the main key is operated from the ON state to the OFF state and the power supply of the respective parts is turned off from the driving power supply.

Although the model setting means K is not shown, it does not change and display one model information as described above, but the cursor is displayed in a state in which a plurality of model information stored in the memory 7 are sequentially displayed on the display screen 1, for example. It is also possible to designate one model by moving, and operate the storage switch 4 in the model selection state (ON state) in that state, and set the designated model information as the model setting information.

The storage means 7 is not limited to the nonvolatile memory but may be another storage medium such as another electrical memory or magnetic floppy.

The plurality of types of operation information includes not only the operation time information of the machine as described above, the rotation speed information of the power unit, the load information of the power unit, and the model information of the machine, but also other operation information. It may be sufficient or it may remove except any of these, and it can set suitably according to the objective of a machine, working conditions, etc.

The image display device constituting the display means is not limited to the liquid crystal dot matrix display screen 1, but may be another image display device (CRT type or the like). The working machine is not limited to the illustrated combine, but may be a machine for other agricultural work, or a construction machine other than for agricultural work.

The model information may not be displayed only for a predetermined time (for example, for 2 seconds) as the main switch MW is operated from the OFF state to the ON state, but may be displayed until, for example, the power unit (engine E) is started.

Next, another embodiment of the control configuration for starting the engine E by the main switch MW will be described with reference to FIG. In this aspect, threshing switch 50 is constituted by a two-contact switch composed of a contact q capable of flowing a large current in addition to the contact p corresponding to the threshing switch S7 (this signal is inputted to the main control unit H). When the threshing clutch 31 is entered and operated, the contact point p is closed and the contact point q is opened. When the threshing clutch 31 is disconnected and operated, the contact point p is opened and the contact point q is closed. When the starter switch st, the starter relay SR start power ESR, and the neutral sensor S10 are turned on with respect to the contact q, the neutral switch Ns is closed. It is connected so that a series circuit may be comprised. When the threshing clutch 31 enters as described above, the engine is not started. In short, unnecessary operation of the threshing part 14 at the time of engine start is avoided. In this case, on the display screen 1, a message "Please break threshing" is displayed for the operator to break the threshing clutch 31.

Claims (6)

In the display device 1 of a work machine for displaying a plurality of kinds of operation information as an image, the work state detecting means of the work machine is provided, and the plurality of the plurality of pieces of operation information are displayed to indicate the current machine state displayed on the display device 1. And a control means (100) for selectively and automatically switching the operation information of a species on the basis of the output of said working state detecting means. 2. The method according to claim 1, wherein the plurality of types of operation information includes operation time information of the machine, rotational speed information of the power unit E, and load information of the power unit E, and whether or not the machine is in an actual working state. The operation state detecting means 101 for detecting is provided, and the control means 100 displays the operation time information when the rotation speed of the power unit E is less than a set rotation speed, and the rotation of the power unit E is performed. When the number is greater than or equal to the set rotation speed, the work state detecting means 101 determines whether the machine is in an actual work state, and while it is determined that the machine is not in the work state, the rotation speed information of the power unit E is displayed. And the rotation speed information of the power unit (E) is displayed while the operation state is determined. 3. The work machine according to claim 2, wherein the plurality of types of operation information includes machine type information of the machine, and the control means 100 displays the machine type information at least for a predetermined time when the work machine is started. Display. The display apparatus according to claim 2 or 3, wherein a manual operation means (3) for switching the display is provided, and the control means (100) is provided with the operation time information and the operation, as the manual operation means (3) is operated. The display device of a working machine, characterized in that the rotational speed information of the power unit (E) and the load information of the power unit (E) are displayed sequentially. The inspection mode according to claim 2 or 3, in addition to the normal mode in which the plurality of kinds of operation information is displayed on the display device 1, an inspection mode for inspecting each part of the machine is provided and an inspection mode can be selectively activated. A display apparatus for a working machine, characterized in that a normal mode is activated at start-up of the working machine by installing manual operation means. 5. A manual apparatus according to claim 4, wherein a test mode for inspecting each part of the machine is provided separately from the normal mode of displaying the plurality of kinds of operation information on the display device 1, and the test mode can be selectively started. A display device for a work machine, comprising: operation means for starting the normal mode when the work machine is started.