JP6442227B2 - Tilt detection system for agricultural machines - Google Patents

Description

  The present invention relates to an inclination detection system for agricultural machines, and more particularly to an inclination detection system for agricultural machines that detects an inclination of an agricultural machine that is attached to a tractor and performs an agricultural work more accurately.

  There are many cases in which it is better to control the inclination of the farm work machine according to the work situation of the farm work machine that is attached to the tractor and performs the farm work. For this reason, the tractor has a system for manipulating the inclination of the agricultural machine mounted on the tractor. For example, by operating a knob installed in the vicinity of the driver's seat of the tractor or in an arbitrary place of the tractor, the angle in the horizontal (left / right) direction of the agricultural machine can be changed.

  FIG. 12 is an example of the tilt adjustment knob of the agricultural machine provided in the tractor. The tilt adjustment knob 300 is provided in the vicinity of the driver seat of the tractor or at an arbitrary position of the tractor, and has a cylindrical knob portion 310, which is rotated by hand to connect the farm work machine. By controlling the coupling device, the horizontal (left and right) inclination of the agricultural machine can be changed. The knob portion 310 has a mark 311 so that the current rotation position of the knob portion 310 can be known. On the other hand, the horizontal range display 321 indicates that there is a position where the agricultural machine can be kept horizontal in this range. Further, as the mark portion 311 is moved by turning the knob portion 310 to the right (clockwise) from the horizontal range display 321, the right of the agricultural machine is inclined downward and moves to the range of the lower right range display 322. . Further, as the mark portion 311 is moved by turning the knob portion 310 to the left (counterclockwise) from the horizontal range display 321, the left of the farm working machine is inclined downward and moves to the lower left range display 323.

  Patent Document 1 describes a configuration in which a tilt sensor is provided on a ground farm work machine as a tilt sensor in a horizontal control device.

Japanese Utility Model Publication No. 63-14114

  However, as shown in an example in FIG. 12, the horizontal range display indicating the horizontal direction in the tilt adjustment knob of the tractor often has a certain width. This is considered to take into consideration the error range of the tilt sensor itself, the mounting error of the members interposed between the tilt sensor on the tractor side and the actual farm work machine, and the like. For this reason, it has been difficult for the worker to know the correct inclination state of a certain degree or more about the inclination of the agricultural machine.

  Further, as a function of the tractor, there is a function of automatically keeping the level, but this also often has a certain degree of error in detection from the tilt sensor of the tractor. Further, there is a case where the worker wants to perform farm work while fixing a desired inclination angle.

  Furthermore, when trying to secure the level during work using only the level, the bubbles in the level were shaken by vibration and could not be confirmed.

  Moreover, although the structure which provides an inclination sensor in the ground farm work machine is described in patent document 1, the structure which correct | amends the error by the detection of this inclination sensor is not described.

  An object of this invention is to provide the inclination detection system for agricultural machines which detects the inclination of the agricultural machine which mounts | wears a tractor and performs agricultural work more correctly in view of the said subject.

In order to achieve the above object, one of the inclination detection systems for agricultural machines according to the present invention is an inclination detection system for agricultural machines that detects the inclination of an agricultural machine that is attached to a tractor and performs agricultural work. An installed level, an inclination sensor installed on the farm working machine, and a display for remotely acquiring information from the inclination sensor, the display for setting a horizontal reference a switch, wherein the information from the tilt sensor based on the criteria set by the setting switch have a display unit for displaying the state of tilt of the agricultural machine, the horizontal of the agricultural machine with the spirit level The horizontal reference of the tilt sensor can be set by operating the setting switch while checking .

Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display unit displays an inclination direction and an inclination degree.
Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display unit displays based on an average value of output values from the inclination sensor for every predetermined time.
Furthermore, one of the inclination detection systems for agricultural machinery according to the present invention is characterized in that the indicator sets the current output value of the inclination sensor as a reference value when the setting switch is pressed or touched. To do.
Furthermore, in one of the inclination detection systems for agricultural machines according to the present invention, the indicator sets an average value of output values from the inclination sensor for a certain time as a reference value when the setting switch is pressed or touched. It is characterized by doing.
Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display of the degree of inclination by the display unit is displayed by changing the scale between when working and when not working .

Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display section is a display by 7 segments.
Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display unit and the setting switch are displayed on a touch screen.
Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the display unit is a character display using liquid crystal.

Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the inclination sensor is a sensor that detects inclination in the left-right direction, and the level is capable of detecting horizontal in the left-right direction .
Furthermore, one of the inclination detection systems for agricultural machines according to the present invention is characterized in that the inclination sensor is a sensor that detects inclination in the front-rear direction, and the level can detect horizontal in the front-rear direction .

  ADVANTAGE OF THE INVENTION According to this invention, in the inclination detection system for agricultural machines, the inclination of the agricultural machine which mounts | wears a tractor and performs agricultural work can be detected more correctly.

1 is a schematic plan view showing an embodiment of an inclination detection system for agricultural machines according to the present invention. An example of the block diagram in the indicator in the inclination detection system for agricultural machines of this invention is shown. An example of the level in the inclination detection system for agricultural machine of this invention is shown. It is a figure which shows an example of the display part of the indicator in the inclination detection system for agricultural machines of this invention, (a) is a display example of "1.0 degree lower right", (b) is "1.5 degree right upward. "Is shown. It is a figure which shows the other example of the indicator in the inclination detection system for agricultural machines of this invention. It is a figure which shows an example of the flowchart in the inclination detection system for agricultural machines of this invention. It is a figure which shows the other example of the flowchart in the inclination detection system for agricultural machines of this invention. It is a top view which shows an example of the agricultural machine which applies the inclination detection system for agricultural machines of this invention. It is a side view which shows an example of the agricultural machine which applies the inclination detection system for agricultural machines of this invention. It is a top view which shows the other example of the agricultural machine which applies the inclination detection system for agricultural machines of this invention. It is a side view which shows the other example of the agricultural machine which applies the inclination detection system for agricultural machines of this invention. It is an example of the inclination adjustment knob of the agricultural machine with which a tractor is equipped.

  A mode for carrying out the present invention will be described.

  FIG. 1: shows the plane schematic which shows one Embodiment of the inclination detection system for agricultural machines of this invention.

  The farm work machine 2 is attached to the rear part of the tractor 1 via a connecting device 4. If necessary, the joint 5 can be attached and farm work can be performed using the PTO power from the tractor 1. In the vicinity of the driver's seat 3 of the tractor 1 or at an arbitrary position of the tractor, the tilt adjusting knob 300 (not shown in FIG. 1) described with reference to FIG. 12 is provided. Have a system that can adjust the tilt. Moreover, the display 10 can be arrange | positioned in the vicinity of the driver's seat 3, and the display 10 can acquire the output value of the inclination sensor 23 remotely.

  The display 10 includes a display unit 14, a setting switch 16, a power switch 17, and a wireless unit 19. Moreover, you may have the display switch 18 as needed. The other configuration of the display device 10 will be described later with reference to FIG.

  The display unit 14 is a display unit that can display the inclination of the agricultural machine 2, and basically displays the degree of inclination (for example, an angle) and the direction of the inclination. Specific examples will be described with reference to FIGS.

  The setting switch 16 is a switch for setting a horizontal reference by an operator. For example, a push button switch or a touch switch can be used.

  The power switch 17 is a switch for turning on the display 10, and for example, a push button switch or a touch switch can be adopted.

  The display switch 18 is a switch for displaying the tilt value on the display unit 14.

  The wireless unit 19 can communicate with the wireless device 21 on the farm work machine 2 side, and specifically can receive information on the output value from the inclination sensor 23.

  On the farm work machine 2 side, there are a wireless device 21, a controller 22, a tilt sensor 23, and a level 25.

  The wireless device 21 can communicate with the wireless unit 19 of the display device 10. Specifically, the wireless device 21 wirelessly transmits information on the output value from the tilt sensor 23 to the wireless device 19 of the display device 10.

  The controller 22 is a control unit that performs control to transmit the output value from the inclination sensor 23 from the wireless device 21 and is configured by a necessary device such as a CPU.

  The inclination sensor 23 is a sensor that can detect the inclination of the agricultural machine 2 in the left-right direction. From this sensor, an output value such as a voltage is sent to the controller 22.

  The level 25 is for detecting the horizontal level of the agricultural machine 2 and is installed on a flat portion or the like on the agricultural machine 2 so that the horizontal level can be confirmed. A specific example will be described later. If the level 25 is installed in a place that can be seen from the driver's seat 3 of the tractor 1, the operator can adjust the level while operating the tilt adjustment knob 300 with the tractor 1.

  In FIG. 1, the wireless communication between the wireless unit 19 of the display 10 and the wireless device 21 of the farm work machine 2 has been described. In the case of wireless communication, the display device 10 can be taken to an arbitrary position within a range where wireless communication can reach. However, other than this, the display 10 and the controller 22 may be wired by wiring, and the information from the inclination sensor 23 may be acquired by the display 10 via this wiring. In the case of a wired connection, it is necessary to connect a wiring. However, since a wireless system is unnecessary, the cost can be reduced.

  In addition, in FIG. 1, the configuration in which the display unit 10 includes the display unit 14 and the setting switch 16 has been described. However, the setting switch 16 may be connected to a remote control device different from the display unit 14. It can also be set as the structure provided. In this case, the setting switch 16 can be provided in an existing remote control device (shared with other agricultural machines).

  FIG. 2 shows an example of a block diagram in the display 10 in the tilt detection system for agricultural machinery of the present invention. The display 10 includes an input unit 11, a processing unit 12, an output unit 13, a display unit 14, a storage unit 15, and a setting switch 16.

  The display unit 14 and the setting switch 16 are the same as those in FIG.

  The input unit 11 inputs information from the inclination sensor 23. In the case of a wireless system, the wireless unit 19 can be the input unit 11.

  The processing unit 12 performs necessary processes for displaying on the display device 10, and includes a necessary device such as a CPU. The processing unit 12 performs processing using information from the tilt sensor 23 input from the input unit 11 and information from the setting switch 16, and outputs information necessary for display to the output unit 13. In addition, necessary information is stored in the storage unit 15. Specific processing contents will be described later.

  The output unit 13 causes the display unit 14 to output information necessary for display obtained from the processing unit 12.

  The storage unit 15 is a storage device that can store information from the processing unit 12.

  FIG. 3 shows an example of the level 25 in the agricultural machinery tilt detection system of the present invention. The level 200 shown in FIG. 3 detects horizontal in the left-right direction in the figure. The level 200 has a liquid 201 in a horizontally long transparent case 210, and has bubbles 202 in the liquid 201. The liquid 201 may be colored. Both sides and lower side of the transparent case 210 have outer frames 220, and the lower end of the outer frame 220 is formed to be parallel to the transparent case 210. In addition, marks 203 that are reference lines are formed on both sides having a certain distance from the center of the transparent case 210.

  Since the bubble 202 moves upward in the liquid 201, if the place where the level 200 is installed is horizontal, the bubble 202 is located near the center between the marks 203, and if not, the bubble 202 is It moves to the left and right according to the tilt direction of the place. Therefore, the operator can determine that the current inclination is horizontal if the bubble 202 is near the center between the marks 203. The level 25 can be applied to other methods as long as the actual level can be confirmed.

  FIG. 4 is a diagram illustrating an example of the display unit 14 of the display 10 in the agricultural machinery tilt detection system according to the present invention, in which (a) is a display example of “down 1.0 ° to the right”, and (b) is “ A display example of “1.5 ° upward” is shown.

  The display unit 40 of the display in FIG. 4 shows display by 7 segments (7 segments). Specifically, three 7 segments are arranged side by side. The rightmost first display 41 and the center second display 42 represent numbers indicating the tilt angle of the agricultural machine 2. 4A represents “1.0”, and FIG. 4B represents “1.5”.

  On the other hand, in the leftmost third display 43, the left and right tilt directions are represented by 7 segments. In the case of FIG. 4A, a lower right vertical display 43c, an upper left vertical display 43f, and a central horizontal display 43g are displayed. The other upper horizontal display 43a, upper right vertical display 43b, lower horizontal display 43d, lower left vertical display 43e, and dot display 43h are not displayed. Thereby, a state of lowering to the right (upward to the left) can be expressed. In the case of FIG. 4B, an upper right vertical display 43b, a lower left vertical display 43e, and a central horizontal display 43g are displayed. The other upper horizontal display 43a, lower right vertical display 43c, lower horizontal display 43d, upper left vertical display 43f, and dot display 43h are not displayed. Thereby, a state of rising to the right (downward to the left) can be expressed.

  In the example of FIG. 4 described above, the tilt direction display by the third display 43 can be displayed in an easy-to-understand manner by continuously displaying three parts. It can also be expressed by displaying at least one of the display 43c and the upper left vertical display 43f, and not displaying the upper right vertical display 43b and the lower left vertical display 43e. Further, in the case of rising to the right, at least one of the upper right vertical display 43b and the lower left vertical display 43e is displayed, and neither the lower right vertical display 43c nor the upper left vertical display 43f is displayed.

  The 7-segment display can reduce the cost, and can be brightly displayed (lighted) if an LED is used. In the example of FIG. 4, three 7-segment displays are shown, but the number of digits that can be displayed can be increased by increasing the number. At this time, at least one 7-segment is displayed in the tilt direction, and the remaining plurality of 7-segments display angle numbers.

  FIG. 5 is a diagram showing another example of the display 10 in the agricultural machinery tilt detection system of the present invention. The display of FIG. 5 shows the display 50 by tablet display. The display device 50 includes a power switch 51 and a touch screen unit 52.

  The power switch 51 corresponds to the power switch 17 in FIG. 1, and when the power switch 51 is touched, the display 50 can be turned on and off.

  The touch screen unit 52 is a display using a touch panel, and can be operated by touching and displaying a screen on the screen using a liquid crystal or the like. On the touch screen 52, a horizontal position installation button display 52a, an angle display 52b, and an inclination direction display 52c are displayed from the bottom. The angle display 52b and the tilt direction display 52c are displayed on the display unit 14 of FIGS.

  The horizontal position installation button display 52a has the same function as the setting switch 16 in FIGS. When the worker touches this place, the worker installs a horizontal position.

  The angle display 52b displays the tilt angle of the agricultural machine 2 on the screen.

  The tilt direction display 52c displays the tilt direction of the agricultural machine 2. The display method can be displayed in an easy-to-understand manner with drawings (pictures, photographs, etc.), for example. In the example of FIG. 5, a diagram of a farm machine including a tractor viewed from the rear side is displayed, and in order to clarify the state in which the farm machine is actually tilted and an arrow indicating the tilt direction from the horizontal direction, It is displayed. FIG. 5 shows a downward-sloping state. The touch screen unit 52 can be displayed in an easy-to-understand manner, and the configuration of the horizontal position installation button display 52a can be changed according to the situation.

  Although FIG. 4 shows an example using 7 segments and FIG. 5 shows an example using a touch screen, the display unit 14 can also be a liquid crystal display. For example, if the liquid crystal display of characters is used, the cost can be reduced compared to the display using a touch screen or the liquid crystal display using a color image. Examples of characters at this time are "down to the right. 0.5 degrees" (when the angle is 0.5 degrees to the right), "/1.5 degrees" (when the angle is 1.5 degrees to the right), " It can be displayed as “downward to the right 1.0 degree” or the like. The “degree” may be “°”. In addition, “/” indicates a right-up, but “\” in the case of a right-down.

  Furthermore, although the display by the display part 14 illustrated about the angle, you may display by the method of expressing the degree of inclination other than this in steps. For example, the degree of inclination is replaced with a specific numerical value, and the inclination increases as the numerical value increases. In this case, it can be displayed in a numerical range that is easily recognized by the operator. In particular, in 7 segments, since the numerical values that can be displayed are limited, the effective inclination degree can be expressed with a small number of digits.

  FIG. 6 is a diagram showing an example of a flowchart in the agricultural machinery tilt detection system of the present invention.

  First, this processing is started (S101) by turning on the power switch 17 of the display 10 or the like. When the operator starts the engine of the tractor 1, the operator operates the coupling device 4 (operated by hydraulic pressure or the like) and slightly raises the position of the farm work machine 2. For example, the tilt adjusting knob 300 of the tractor 1 is adjusted to be horizontal by turning the knob 300 for adjusting the tilt. At this time, it is possible to confirm and adjust the actual accurate horizontal position by confirming the level 25 installed in the agricultural machine 2 (S102). In addition, when the adjustment of the angle in the left-right direction of the farm work machine 2 is an adjustment by a manual screw type or the like, the angle may be adjusted without starting the engine of the tractor 1.

  Next, the operator presses (or touches) the setting switch 16 included in the display device 10 (S103). At this time, an output value related to the current inclination is sent from the inclination sensor 23 to the processing unit 12 in the display 10. The processing unit 12 stores the output value at this time as a horizontal reference value in the storage unit 15. Store (S104). Then, the output value of the tilt sensor 23 in the horizontal state is set to 0 (S105). These adjustments from S102 to S105 can be performed before entering the farm field where the farm work is performed or before starting the actual work.

  Next, the worker starts farm work by the farm work machine 2 (S106). When the PTO power is required, the power is transmitted from the tractor 1 to the agricultural machine 2 via the joint 5 with the PTO power turned ON. At this time, sensing of the inclination of the agricultural machine 2 is performed (S107). When the actual inclination of the agricultural machine 2 in the left-right direction changes, for example, when the operator operates the inclination adjustment knob 300 during the operation, the output value from the inclination sensor 23 varies accordingly. At this time, the processing unit 12 determines to which side (how much) the side is inclined with respect to the previously set reference (S108). It should be noted that during the work, the time from entering the field for actual work such as tilling or shaving, regardless of whether the tractor is moving or not, may be the time during the work.

  Next, when the operator wants to reset to an arbitrary reference value (S109), the operator presses (or touches) a switch for setting the reference value (S121). The switch at this time may be shared with the setting switch 16 or may be provided with another switch. At this time, an output value related to the current inclination is sent from the inclination sensor 23 to the processing unit 12 in the display 10. In the processing unit 12, the output value at this time is set as an arbitrary reference value, and the storage unit 15 (S122). The output value of the tilt sensor at this arbitrary tilt is set to 0 (S123).

  If the operator does not reset the reference value (S109), the processing unit 12 next displays the degree of inclination (numerical value, etc.) with respect to the current reference and the direction of inclination with respect to the reference 14 Is displayed according to the display method (S110). Furthermore, when the inclination of the agricultural machine 2 changes, the new inclination and its direction are displayed on the display unit 14 based on the output value from the inclination sensor 23 accordingly (S111, S107 to S110). When the work is finished (S112), these controls are finished by turning off the power switch 17 of the display 10 (S113).

  By performing such control, the operator can check the correct level by looking at the level 25 and press (or touch) the setting switch 16 in the horizontal state of the agricultural work machine 2 to tilt at that time. The output value of the sensor 23 becomes 0 on the display 10. Thereby, the initial error due to the measurement of the inclination sensor 23 attached to the agricultural machine 2 side can be canceled. Furthermore, the display of the tilt and the tilt direction display can be confirmed in front of the user while working on the tractor 1 by the display 10 that can be displayed remotely. These can be reflected in more accurate farm work. Further, by setting the output value of an arbitrary inclination state to 0, the inclination degree and the inclination direction can be displayed based on the output value, and the inclination of the agricultural machine according to the conditions can be easily controlled.

  FIG. 7 is a diagram showing another example of a flowchart in the agricultural machinery tilt detection system of the present invention. The control of FIG. 7 differs from FIG. 6 in that the output value of the tilt sensor 23 is measured for a certain time and the average value is used.

  First, this process is started (S201) by turning on the power switch 17 of the display 10 or the like. When the operator starts the engine of the tractor 1, the operator operates the coupling device 4 (operated by hydraulic pressure or the like) and slightly raises the position of the farm work machine 2. For example, the tilt adjusting knob 300 of the tractor 1 is adjusted to be horizontal by turning the knob 300 for adjusting the tilt. At this time, it is possible to confirm and adjust the actual accurate horizontal position by confirming the level 25 installed in the agricultural machine 2 (S202). In addition, when the adjustment of the angle in the left-right direction of the agricultural machine 2 is an adjustment by a manual screw type or the like, the angle may be adjusted without starting the engine of the tractor 1.

  Next, the operator presses (or touches) the setting switch 16 included in the display device 10 (S203). At this time, the output value related to the current inclination is sent from the inclination sensor 23 to the processing unit 12 in the display 10, and the processing unit 12 measures the output value of the inclination sensor 23 for a certain time (S204). The average value of the obtained data is stored in the storage unit 15 as a horizontal reference value (S205). Then, the horizontal reference value is set to 0 (S206). As the fixed time here, for example, a time suitable for measurement such as 1 to 3 seconds can be applied. The adjustments from S202 to S205 can be performed before entering the farm field where the farm work is performed or before starting the actual work.

  Next, the worker starts farm work by the farm work machine 2 (S207). When the PTO power is required, the power is transmitted from the tractor 1 to the agricultural machine 2 via the joint 5 with the PTO power turned ON. At this time, sensing of the inclination of the agricultural machine 2 is performed (S208). When the actual inclination of the agricultural machine 2 in the left-right direction changes, for example, when the operator operates the inclination adjustment knob 300 during the operation, the output value from the inclination sensor 23 varies accordingly. At this time, the processing unit 12 measures the output value of the tilt sensor 23 for a certain period of time (S209), and from what average value of the measured data to which side (how much) to which side the previously set reference is determined. It is determined whether it is tilted (S210). As the fixed time here, for example, a time suitable for measurement, such as about 1 second, can be applied, and the measurement may be performed at fixed time intervals.

  Next, when the operator wants to reset to an arbitrary reference value (S211), the operator presses (or touches) a switch for setting the reference value (S221). The switch at this time may be shared with the setting switch 16 or may be provided with another switch. At this time, the output value related to the current inclination is sent from the inclination sensor 23 to the processing unit 12 in the display 10, and the processing unit 12 measures the output value of the inclination sensor 23 for a certain period of time (S222). The average value of the measured data is stored in the storage unit 15 as an arbitrary reference value (S223). Then, the output value of the tilt sensor at this arbitrary tilt is set to 0 (S224).

  If the operator does not reset the reference value (S211), the processing unit 12 next displays the degree of inclination (numerical value, etc.) with respect to the current reference and the direction of inclination with respect to the reference 14 Are displayed according to the display method (S212). Furthermore, when the inclination of the farm work machine 2 changes, the display unit 14 displays a new inclination and its direction based on an average for each fixed time based on the output value from the inclination sensor 23 accordingly (S213, S208 to S212). When the work is finished (S214), these controls are finished by turning off the power switch 17 of the display device 10 (S215).

  If the farm work machine 2 starts the engine of the tractor 1, the vibration of the engine is transmitted, and further, if the farm work is performed using PTO power or the like, vibration during actual work is also generated. At this time, the output value of the tilt sensor 23 is not stabilized by these vibrations, and the tilt display of the display unit 14 may not be accurate. For this reason, as in the control of FIG. 7, the output value of the tilt sensor is measured for a certain period of time when the reference value is set or when the tilt is sensed, and the average value is used to display a stable value. to enable.

  When arbitrary reference values are set (S121 to S123, S221 to 224) for the display on the display unit 14 (S110, S212) described in FIGS. 6 and 7, the horizontal reference values (S104, S205) are set. The degree and direction of inclination of any reference value (S122, S223) may also be displayed. For example, two displays are simultaneously displayed on the display unit 14, one is a display of the current inclination and direction with respect to an arbitrary reference value, and the other is an inclination of an arbitrary reference value with respect to a horizontal reference value. And direction indication. In addition to this, the display unit 14 displays the current degree of inclination and direction with respect to an arbitrary reference value on one display, and is switched by a specific switch provided, so that an arbitrary reference with respect to the horizontal reference value is displayed. The degree of inclination and the direction of the reference value may be displayed. By these, the worker can confirm in what inclination and direction the arbitrary reference value is set with respect to the horizontal reference value, and it becomes easier to grasp the current inclination state of the agricultural machine 2. .

  In FIGS. 6 and 7, display examples of the inclination degree are always displayed on the same scale. However, the scale may be changed between the time of work and the time other than the work. During the work, the display of the degree of inclination frequently changes (even if the adjustment knob 300 is not operated) depending on the work conditions due to the vibration of the farm work machine 2 due to the actual work. It may be difficult to recognize. As a method for preventing this, during actual work, the range of the output value from the tilt sensor 23 when the stage display (angle, numerical value, etc.) changes on the display unit 14 is different from the case other than during work. One way is to keep it large.

  For example, in the case of an angle, it is changed every 0.1 ° except during work, and is changed every 0.25 ° during work. That is, in the case of this example, the output value from the inclination sensor 23 is changed to 0.1 °, 0.2 °, 0.3 °. The time is changed by 0.25 °, 0.5 °, 0.75 °... And the range of the output value from the inclination sensor 23 is increased. Thus, the horizontal reference value can be determined by a more accurate display when setting the horizontal, and the display can be prevented from frequently changing due to vibration during farm work.

  The range can be switched by providing a specific switch such as a “work mode switch” and pressing (or touching) this switch. The range of the output value from the tilt sensor 23 that changes the display stage of the display unit 14 is, for example, a range that is at least twice as large as that at the time of work other than at the time of work.

  In addition, the range of output values from the tilt sensor 23 may be changed for displays having the same tilt degree. For example, when it is not during work, the corresponding display when the output value from the tilt sensor 23 corresponds to the actual angle is 0.1 °, 0.2 °, 0.3 °... “1”, “2”, “3”..., And when working, the output value from the tilt sensor 23 corresponds to the actual angle of 0.25 °, 0.5 °, 0. The corresponding display in the case of 75 ° is “1”, “2”, “3”.

  FIG. 8 is a plan view showing an example of the agricultural machine 2 to which the agricultural machine inclination detecting system of the present invention is applied. FIG. 9 is a side view showing an example of the agricultural machine 2 to which the agricultural machine inclination detection system of the present invention is applied. The farm work machine 2 shown in FIGS. 8 and 9 shows a rotary 60 that performs tillage work.

  The rotary 60 is attached to the rear portion of the tractor 1 via the connecting portion 75. The PTO power from the tractor 1 is input to the input shaft 61 through the joint 5 or the like. The power input to the input shaft 61 is transmitted to the tilling shaft 65 via a gear in the mission case 62, a shaft in the frame pipe 63, a chain in the chain case 64, and the like. The tilling shaft 65 has a plurality of tilling claws 66 and performs the tilling work by rotating. On the upper part of the tilling shaft 65 and the tilling claw 66, there is a tilling portion cover 71. On the rear side of the tilling shaft 65 and the tilling claw 66, a flat plate 72 connected by the tilling portion cover 71 and the chopping plate 73 is arranged. Has been. The frame pipe 63 is located on the top of the tillage part cover 71 and is connected to the chain case 64 and the bracket 68 from both sides of the transmission case 62, respectively.

  In the example of FIGS. 8 and 9, the controller 22, the inclination sensor 23, and the level 25 are installed on a flat portion that exists on the rear side of the tillage unit cover 71. In FIG. 8, the function of the display 10 ′ is the same as that of the display 10 shown in FIG. 1 except that the display 10 ′ and the controller 22 are connected by wire. In this case, the wireless unit 19 and the wireless device 21 need not be provided.

  The operator can accurately know the degree and direction of the inclination of the rotary 60 from the display device 10 ′, and can reflect it in the work.

  FIG. 10 is a plan view illustrating another example of the agricultural machine 2 to which the agricultural machine inclination detection system of the present invention is applied. FIG. 11 is a side view showing another example of the agricultural machine 2 to which the agricultural machine inclination detection system of the present invention is applied. The farm work machine 2 shown in FIGS. 10 and 11 shows a hull coater 80 that performs a hull painting work.

  In the wrinkle coater 80, the mounting portion 82 is mounted on the rear portion of the tractor 1 through the connecting portion 93. The PTO power from the tractor 1 is input to the input shaft 81 through the joint 5 or the like. The power input to the input shaft 81 is sent to the working unit 85 through a transmission mechanism in the intermediate frame 83 or the like. The working unit 85 is configured to perform pre-processing by the pre-processing unit 86, send the old paddy soil to the disk unit 88 by the rotation of the tillage unit 87, and shape the new paddle shape by the rotation of the disk unit 88. Further, the working portion 85 can be offset by the first cylinder 91 to the center, and the storage portion can be brought into a retracted state. Further, the working portion 85 is rotated by the second cylinder 92 from the retracted state, thereby enabling return work by back work. .

  In the example of FIGS. 10 and 11, the controller 22, the tilt sensor 23, and the level 25 are installed on a flat portion of the mounting portion 82 on the frame. The function of the display 10 'in FIG. 10 is the same as that in FIG.

  The operator can accurately know the degree of inclination and the direction of the wrinkle coater 80 from the display device 10 ′, and can reflect it in the work.

  In addition, as an example of the farm work machine 2, the rotary and the hull coater have been described. However, the present invention is not limited to this, and the present invention can be applied to all farm work machines that are mounted on a tractor and perform horizontal farming and farm work. it can.

  Moreover, although the said embodiment described the right-and-left inclination of the agricultural machine 2, it can be used not only for right and left but also the inclination of the agricultural machine 2 in the front-rear direction. The farm work machine 2 has an appropriate basic posture during farm work. For example, for a rotary, it is 5 degrees forward. In this case, the posture can be changed by adjusting a connecting device 4 (for example, a top link) between the agricultural machine 2 and the tractor 1. If the tilt sensor 23 is used to display the tilt in the front-rear direction on the display unit 14 according to the present invention, it is not necessary to prepare an angle meter separately. In this case, the inclination sensor 23 is installed in the agricultural machine 2 so as to detect the inclination in the front-rear direction, and the level 25 is also installed in the agricultural machine 2 so as to detect the horizontal in the front-rear direction.

  In addition, although embodiment of this invention was described concretely, it is not restricted to this, This invention can also be widely applied to the inclination detection for the agricultural machine which mounts | wears a tractor and performs agricultural work. In that case, the structure for that can employ | adopt suitably and employ | adopt a required structure from the said embodiment. Moreover, you may utilize in combination with another structure as needed.

DESCRIPTION OF SYMBOLS 1 Tractor 2 Farming machine 10, 10 ', 50 Display 14, 40 Display part 16 Setting switch 23 Inclination sensor 25, 200 Level 52 Touch screen part 60 Rotary 80 Sprinkling machine 300 Tilt adjustment knob

Claims (11)

An inclination detection system for an agricultural machine that detects the inclination of an agricultural machine that is attached to a tractor and performs an agricultural work,
A level installed in the farm machine, a tilt sensor installed in the farm machine, and a display for remotely acquiring information from the tilt sensor,
The display device includes a setting switch for setting a horizontal reference, and a display unit that displays information from the inclination sensor and a state of inclination of the agricultural machine based on the reference set by the setting switch. Yes, and
Inclination detection for agricultural machines , wherein the horizontal reference of the inclination sensor can be set by operating the setting switch while checking the level of the agricultural machine using the level. system. In the inclination detection system for agricultural machines according to claim 1,
The display unit displays an inclination direction and an inclination degree. In the inclination detection system for agricultural machines according to claim 1 or claim 2,
The said display part displays based on the average value for every fixed time of the output value from the said inclination sensor, The inclination detection system for agricultural machines characterized by the above-mentioned. In the inclination detection system for agricultural machines according to any one of claims 1 to 3,
The display device sets a current output value of the tilt sensor as a reference value when the setting switch is pressed or touched, and the tilt detection system for agricultural machinery is characterized in that: In the inclination detection system for agricultural machines according to any one of claims 1 to 3,
When the setting switch is pressed or touched, the indicator sets an average value of output values from the tilt sensor for a predetermined time as a reference value. In the inclination detection system for agricultural machines according to claim 2,
The inclination detection system for agricultural machines is characterized in that the display of the degree of inclination by the display unit is displayed by changing the scale between when working and when not working . In the inclination detection system for agricultural machines according to any one of claims 1 to 6,
The tilt detection system for agricultural machinery, wherein the display unit is a 7-segment display. In the inclination detection system for agricultural machines according to any one of claims 1 to 6,
The tilt detection system for agricultural machines, wherein the display unit and the setting switch are displayed on a touch screen. In the inclination detection system for agricultural machines according to any one of claims 1 to 6,
The tilt detection system for agricultural machinery, wherein the display unit is a character display using liquid crystal. In the inclination detection system for agricultural machines according to any one of claims 1 to 9,
The tilt detection system for agricultural machines, wherein the tilt sensor is a sensor that detects a tilt in the left-right direction, and the level is capable of detecting horizontal in the left-right direction . In the inclination detection system for agricultural machines according to any one of claims 1 to 10 ,
The tilt detection system for agricultural machinery, wherein the tilt sensor is a sensor that detects tilt in the front-rear direction, and the level can detect horizontal in the front-rear direction .

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