JP2017079655A - Power supply notification system of agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply notification system of an agricultural machine for notifying of a power supply state when supplying power to a working machine mounted on a tractor for performing agricultural work through wireless power supply.SOLUTION: A power supply notification system includes a power transmission unit 14 installed on a tractor 1 side, a power receiving unit 21 installed on a working machine 2 side, a working machine side radio unit 22 installed in the working machine 2 to which power can be supplied from the power receiving unit 21, a power storage unit 23 installed in the working machine 2 that can store power by the power from the power receiving unit 21, a control unit 24 installed in the working machine 2, an actuator 27 installed in the working machine 2 to which power is supplied from the power storage unit 23, and a first notification unit 45 installed in the working machine 2. Wireless power supply can be made from the power transmission unit 14 to the power receiving unit 21. The first notification unit 45 performs notification when the wireless power supply is made from the power transmission unit 14 to the power receiving unit 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply notification system for agricultural machines, and more particularly to a power supply notification system for agricultural machines that notifies a power supply state when power is supplied via wireless power supply to a work machine that is attached to a tractor and performs farm work.

  In a work machine that is attached to a tractor and performs farm work, a battery installed on the tractor side is often used as a power source for output devices such as actuators that the work machine has. At this time, the battery on the tractor side was connected via a harness.

  On the other hand, the work machine performs the farm work by replacing another type of work machine with the tractor according to the contents of the farm work. For this reason, the harness that connects the battery and the work machine arranged on the tractor side is often detachable when a connector is provided in the middle and the work machine is replaced.

  For this reason, the operator needs to attach and detach the connector between the tractor and the work implement when changing the work implement to the tractor. For this reason, Patent Document 1 describes a system that eliminates the need for attaching and removing a harness for power feeding through wireless power feeding between a tractor and a work machine.

JP 2011-217742 A

  On the other hand, there was no means for directly confirming whether or not wireless power was supplied from the tractor to the work equipment. For this reason, for example, when the actuator on the work machine side does not operate, it has not been possible to identify whether there is a problem with wireless power feeding or other problems.

  In view of the above-described problems, an object of the present invention is to provide a farming machine power feeding notification system that reports a power feeding state when power is supplied to a working machine that is attached to a tractor and performs farming work via wireless power feeding.

  In order to achieve the above object, one of the power feeding notification systems for agricultural machines according to the present invention is a power feeding notification system that is applied to a working machine that is detachable from a tractor and performs farming work, and is a power transmission unit installed on the tractor And a power receiving unit installed on the work machine side, a work machine side radio unit installed on the work machine and capable of supplying power from the power receiving unit, and a power storage unit installed on the work machine using power from the power receiving unit A power storage unit capable of operating, a control unit installed in the work machine, an actuator installed in the work machine and supplied with electric power from the power storage unit, and a first notification unit installed in the work machine Wireless power supply is possible from the power transmission unit to the power reception unit, and the first notification unit performs notification when wireless power supply is being performed from the power transmission unit to the power reception unit. To do.

Furthermore, one of the power feeding notification systems for agricultural machines according to the present invention includes a power storage control unit that stops power transmission from the power receiving unit to the power storage unit when the power stored in the power storage unit is equal to or greater than a certain level. It is characterized by that.
Furthermore, one of the power feeding notification systems for agricultural machines according to the present invention includes a second notification unit, and the second notification unit is configured to supply power to the power storage unit and to the power storage unit. Notification is made when the stored power is above a certain level.
Furthermore, one of the farm work machine power supply notification systems of the present invention has a third notification unit, and the third notification unit notifies when power is supplied to the work unit side radio unit. It is characterized by that.
Furthermore, one of the power feeding notification systems for agricultural machines according to the present invention is characterized in that the notification is performed by a light emitting member or a member that emits sound.

Furthermore, one of the farming machine power feeding notification systems of the present invention has a current control unit, and when the current control unit determines that wireless power feeding to the power receiving unit is not performed, the power stored in the power storage unit is Control is performed so as not to be consumed by the work unit side radio unit.
Furthermore, one of the power feeding notification systems for agricultural machines according to the present invention is characterized in that the power storage unit is a battery or a capacitor.

  ADVANTAGE OF THE INVENTION According to this invention, in the electric power alerting | reporting system of an agricultural machine, it can know the electric power feeding state when supplying electric power via a wireless electric power feeding to the working machine which mounts | wears a tractor and performs agricultural work.

BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram which shows one Embodiment of the electric power alerting | reporting system of the agricultural machine of this invention. It is a principal part wiring schematic diagram which shows one Embodiment of the electric power feeding alerting | reporting system of the agricultural machine of this invention. It is a side view which shows an example of the working machine with which the electric power alerting | reporting system of the agricultural working machine of this invention is applied. It is a top view which shows an example of the working machine with which the electric power alerting | reporting system of the agricultural working machine of this invention is applied. It is a front view which shows an example of the working machine with which the electric power alerting | reporting system of the agricultural machine of this invention is applied. It is a top view which shows another example of installation of the alerting | reporting apparatus in the working machine with which the electric power feeding alerting | reporting system of the agricultural machine of this invention is applied. It is a front view which shows another installation example of the alerting | reporting apparatus in the working machine with which the electric power feeding alerting | reporting system of the agricultural machine of this invention is applied.

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

  FIG. 1 is an overall configuration diagram showing an embodiment of a power feeding notification system for agricultural machines according to the present invention. FIG. 2 is a main part wiring schematic diagram showing an embodiment of a power feeding notification system for agricultural machines according to the present invention.

  The present invention is a system that can supply power (electricity) from the tractor 1 side to the work implement 2 side via wireless power feeding between the power transmission unit 14 and the power reception unit 21.

  The tractor 1 includes a tractor battery 11, a power harness 12, a switch 13, and a power transmission unit 14. The wireless unit 10 can be disposed in the vicinity of the driver seat 4 of the tractor 1.

  The work machine 2 includes a power reception unit 21, a work machine side radio unit 22, a power storage unit 23, a control unit 24, a relay 26, and an actuator 27. In addition, the work machine 2 includes a plus line 30, a minus line 31, a power supply line 32, a power storage line 33, and a branch line 34 for electrical connection, and a communication line 38 for information connection. have. Furthermore, it has the electrical storage control part 41, the electric current control part 42, and the detection part 43, and these are good also as the electric current control unit 40. Furthermore, the work machine 2 includes a first notification unit 45, a second notification unit 46, and a third notification unit 47, which are connected by a connection line 45a, a connection line 46a, and a connection line 47a, respectively.

  The wireless unit 10 is a device that can transmit information to the work machine side wireless unit 22 wirelessly. The radio unit 10 can include an operation unit having an operation switch, and information by operating the operation unit can be transmitted as an operation signal to the work machine side radio unit 22 by radio transmission. The operation unit may have a switch such as a push button switch for operating the actuator 27. At this time, the operation unit may be integrated with the wireless unit 10 or may be separated through wiring or the like. Furthermore, the wireless unit 10 may include a display unit to display necessary information. At this time, the display unit may be integrated with the wireless unit 10 or may be separated through wiring or the like. Moreover, you may make it the radio | wireless part 10 receive the information from the working machine side radio | wireless part 22 by radio | wireless as needed.

  The tractor battery 11 is installed on the tractor 1. The tractor battery 11 can be a direct current power source that sends electricity to the power transmission unit 14. Moreover, you may have the structure charged using the engine motive power from the tractor 1. FIG. Moreover, the battery which supplies the electricity required for the tractor 1 may be sufficient.

  The power harness 12 is a harness (wiring) that connects the tractor battery 11 and the power transmission unit 14. A switch 13 is provided on the way. Further, a relay or the like may be provided separately from the switch.

  When the switch 13 is ON (on), power from the tractor battery 11 is sent to the power transmission unit 14, and when it is OFF (off), power from the tractor battery 11 is not sent to the power transmission unit 14. The switch 13 can be shared with a switch for starting a tractor such as an engine start of the tractor 1. For example, the switch 13 can be configured as a key switch that is turned on when a key for starting the engine is rotated. Thus, electric power can be supplied when the tractor key switch (switch for starting the tractor) is ON, and the switch 13 is turned ON when the operator starts the tractor. In addition to this, the switch 13 may be arranged so as to be arranged in the vicinity of the driver's seat 4 so that an operator who gets on the tractor 1 can turn on and off depending on the situation.

  The power transmission unit 14 is a device on the power transmission side for performing wireless power feeding with the power reception unit 21, and converts the power from the tractor battery 11 sent via the power harness 12 into wireless power transmission for power transmission. For this reason, the power transmission part 14 has a device required in order to convert electric power and to transmit by wireless. Further, the power transmission unit 14 can be easily supplied with wireless power by being arranged at a position close to the work machine 2 on the tractor 1 side.

  The power receiving unit 21 is a device on the power receiving side for performing wireless power feeding with the power transmitting unit 14 and receives power from the power transmitting unit 14 and converts it into electric power. The converted power is sent to the plus line 30. For this reason, the power receiving unit 21 has a device necessary for receiving power wirelessly and converting it into electric power. The power receiving unit 21 is connected to the plus line 30 and the minus line 31, the minus line 31 is connected to the minus side of the converted circuit, and the plus line 30 is connected to the plus side of the converted circuit. Yes.

  A method of wireless power feeding performed between the power transmission unit 14 and the power reception unit 21 will be described. Examples of wireless power feeding include “electromagnetic induction”, “magnetic resonance”, and “microwave / laser light”. The “electromagnetic induction” method is a method in which electric power is transmitted from the primary side coil to the secondary side coil by electromagnetic induction. The “magnetic resonance” method is a method of transmitting power using resonance. The “microwave / laser light (wireless)” method is a method of performing power transmission using microwaves or laser light.

  When these methods are applied, the power transmission unit 14 and the power reception unit 21 are configured to match these methods. For example, in the case of the “electromagnetic induction” method, the power transmission unit 14 has a system for generating alternating current and a primary coil, and the power reception unit 21 has a system for rectifying with a secondary coil. Further, in the case of the “magnetic resonance” method, the power transmission unit 14 includes a system and a coil for generating a constant frequency, and the power reception unit 21 includes a system that rectifies the coil.

  The work machine side wireless unit 22 receives a wireless signal from the wireless unit 10. When a signal is received from the wireless unit 10, it is sent to the control unit 24 via the communication line 38. For easy understanding, a display when the power is on, a display indicating the reception state, and the like may be added. In addition, the work machine side radio unit 22 may transmit information obtained from the control unit 24 to the radio unit 10. In addition, the work machine side radio unit 22 can use power obtained through wireless power feeding, and the work machine side radio unit 22 can transmit power by wireless power feeding between the power transmission unit 14 and the power receiving unit 21. It operates within the range of. In addition, power can be obtained from the power storage unit 23. Note that the work machine side radio unit 22 requires a certain amount of power when it is in a receivable state (standby state) in which a radio signal from the radio unit 10 can be received.

  The power storage unit 23 is configured by a device having a power storage function and stores electric power. As the power storage unit 23, for example, a battery constituted by a nickel metal hydride battery, a lead storage battery, a lithium ion battery, a lithium battery, or the like, a capacitor, or the like can be applied. If it is a battery, it is stored by charging and the supplied power is stored.

  The control unit 24 controls the actuator 27 based on the operation signal received by the work implement side radio unit 22. The control unit 24 is configured by an electronic device or the like necessary for control, and can be stored in the box as a control box and can be made independent.

  The relay 26 is configured by a relay circuit for operating the actuator 27 according to a command from the control unit 24. This is provided as necessary. For example, if the actuator 27 is an electro-hydraulic cylinder with high power consumption, it may be used. Further, a semiconductor other than a relay circuit (for example, FET, CMOS, transistor, etc.) that can flow a large current may be used.

  The actuator 27 operates under the control of the control unit 24. For example, an electric hydraulic cylinder or a motor can be used. The actuator 27 can be operated using the electric power from the power storage unit 23.

  In addition to the actuator 27, the work machine 2 may be provided with a low power device such as an LED or a lamp, a sensor, a buzzer, or a switch. In this case, the control unit 24 controls the low-power device as needed and acquires information from the low-power device and reflects it in the control. The electric power necessary for these can be obtained from the power storage unit 23, or the electric power from the wireless power feeding between the power transmission unit 14 and the power reception unit 21 may be obtained.

  One of the plus lines 30 is connected to the plus side of the power receiving unit 21, and the other is branched to a power supply line 32 and a power storage line 33 at a branch point 36. In addition, a power storage control unit 41 is provided in the middle.

  The minus line 31 is a lead wire having one end connected to the minus side of the power receiving unit 21, branched in the middle, and connected to the minus side of the power storage unit 23 or the minus side of the work machine side radio unit 22. Furthermore, the first notification unit 45, the second notification unit 46, and the third notification unit 47 are also connected to the minus side by branching. Further, the branch line 34 is also connected to the negative side of the control unit 24, the relay 26, and the actuator 27. Here, the minus line 31 is a lead wire serving as a reference of 0 V, and may be grounded.

  The power supply line 32 is a conducting wire having one end connected at the branch point 36 of the plus line 30 and the other end connected to the plus side of the work machine side radio unit 22.

  The power storage line 33 is a conducting wire having one end connected at the branch point 36 of the plus line 30 and the other end connected to the plus side of the power storage unit 23. In addition, a current control unit 42 is provided in the middle.

  The branch line 34 is a conducting wire that branches from the middle of the minus line 31 and the middle of the power storage line 33 and sends electricity to the control unit 24, the relay 26, and the actuator 27. In FIG. 1, it is connected to the wiring connecting between the control unit 24 and the relay 26.

  The communication line 38 is connected to the work unit side radio unit 22 and the control unit 24, and here is a communication line for exchanging information only, and does not exchange electric power.

  Note that the control unit 24, the relay 26, and the actuator 27 are connected by wiring, and are configured to be capable of electrical exchange and information exchange as necessary.

  When the amount of power stored in the power storage unit 23 exceeds a certain level, the power storage control unit 41 detects this and prevents the power from the power receiving unit 21 from being sent to the power storage unit 23. Further, when the amount of power stored in the power storage unit 23 is below a certain level, this is detected and the power from the power receiving unit 21 is sent to the power storage unit 23. When the storage control unit 41 determines that the storage amount of the storage unit 23 has reached a certain level, for example, as a switch made of a semiconductor composed of an IC or the like, the storage control unit 41 turns off the circuit to the storage line 33 and transmits power. Try to stop. Further, when it is determined that the amount of power stored in the power storage unit 23 has become below a certain level, a circuit to the power storage line 33 is inserted to transmit power to the power storage unit 23. Thus, for example, it is possible to prevent the life of the power storage unit 23 from being shortened.

  Here, when the power storage unit 23 is a battery, the power storage control unit 41 controls charging. The determination that the battery is charged above a certain level, which is a condition for stopping charging, is performed when the positive (power storage line 33) and negative (minus line 31) voltages of the power storage unit 23 are above a certain level, When the current is below a certain level, or when the positive and negative voltages of the power storage unit 23 are above a certain level and the current to the power storage unit 23 is below a certain level by combining them, the power storage unit 23 is charged above a certain level. Can be determined. The case where the voltage becomes a certain level or more is a case where the voltage becomes higher than a predetermined standard voltage. Further, the case where the current is below a certain level is a case where the current is considerably smaller than the current that flows during normal charging. Moreover, the state charged more than fixed can be made into the state of substantially full charge, for example. In addition, when charging is stopped, as a condition for starting charging, the positive and negative voltages of the power storage unit 23 can be a predetermined or lower voltage. The voltage value below a certain value here is higher than the standard voltage at the time of charging, but a value lower than the voltage value above a certain value that is a condition for stopping the charging can be adopted.

  Note that the power storage control unit 41 may be provided in the middle of the power storage line 33 that is closer to the power storage unit 23 than the branch point 36. However, if it is not closer to the power receiving unit 21 than the branch point of the branch line 34, electric power can be supplied from the power storage unit 23 to the actuator 27 and the like via the branch line 34 when the power storage amount 33 is disconnected when the storage amount is a certain level or more. Disappear.

  The current control unit 42 does not send the power from the power storage unit 23 to the work unit side radio unit 22 when it is determined that the wireless power supply is not performed (including the case where the wireless power supply is not properly performed). It is what you want to do. For example, as a switch by a relay or the like, it is provided in the middle of the power storage line 33 that is the power storage unit 23 from the branch point 36. In this case, while the power transmission unit 14 and the power reception unit 21 are wirelessly feeding, this current is detected by the detection unit 43 and the switch in the current control unit 42 is turned on. Further, when wireless power feeding is not performed, the current in the power control unit 42 is turned off without sensing the current by the wireless power feeding by the detection unit 43 so that the current in the power storage unit 23 does not flow to the work unit side radio unit 22. Shut off.

  Further, the current control unit 42 may not turn on the switch when the current during the wireless power feeding is not sufficient. That is, the switch in the current control unit 42 is turned on when the current from the power receiving unit 21 sensed by the detection unit 43 is more than a certain value, and is turned off otherwise. Thereby, the switch in the current control unit 42 can be turned OFF even when the power transmission unit 14 and the power reception unit 21 are not sufficiently opposed to each other and the power is not properly supplied to the work implement side radio unit 22. In this case, the current control unit 42 functions as an opposing detection unit between the power transmission unit 14 and the power reception unit 21.

  Furthermore, the current control unit 42 may turn on the switch in the current control unit 42 only when a current flows from the power receiving unit 21 toward the power storage unit 23. This can be realized by turning on the switch in the current control unit 42 when a current is sensed in the direction from the power receiving unit 21 to the power storage unit 23, for example, by providing a diode in the circuit. That is, even if a current flows from the power storage unit 23 to the power receiving unit 21, the switch in the current control unit 42 is not turned on. In this case, the current control unit 42 functions as a reverse connection detection unit that prevents a failure of other devices when the plus / minus of the power storage unit 23 is reversed.

  Further, the current control unit 42 may be provided in the middle of the power supply line 32. However, in this case, the function as the reverse connection detection unit is not sufficiently exhibited, but the function of the wireless power feeding detection and the opposite detection unit is achieved.

  Here, the power storage control unit 41, the current control unit 42, and the detection unit 43 described above can be provided integrally with the power receiving unit 21 as the current control unit 40. Moreover, it is also possible to provide as a separate body as shown in FIGS. It is also possible to provide a part of these as a unit with the power receiving unit 21.

  As the first notification unit 45, the second notification unit 46, and the third notification unit 47, a light emitting member, a member that emits sound, or the like can be applied. For example, if it is a light emitting member, they are LED (light emitting diode), a lamp, a liquid crystal, etc. Moreover, if it is a member which emits a sound, they are a buzzer, a speaker, etc. Any of the light emitting member and the member that emits sound may be applied, or these may be used in combination. Furthermore, in order to make the first notification unit 45, the second notification unit 46, and the third notification unit 47 easy to understand the difference, if the LED or the lamp is used, the color of light emission or the lighting time may be changed. The blinking interval may be changed. In the case of liquid crystal, the display content may be changed, and the current situation may be notified. Moreover, if it is a buzzer or a speaker, you may change the kind of sound and the space | interval which sounds, respectively. Furthermore, if it is a speaker, you may change the content of an audio | voice and you may alert | report the present condition. Moreover, the 1st alerting | reporting part 45, the 2nd alerting | reporting part 46, and the 3rd alerting | reporting part 47 can also be set as the structure by one member depending on the case. For example, if it is a member which emits sound, the content of three notifications can be performed by changing the content of sound or voice. Moreover, if it is a liquid crystal, you may perform the content of three alerting | reporting on one screen.

  The first notification unit 45 notifies that the wireless power feeding from the power transmission unit 14 to the power reception unit 21 is normally performed. The notification of the present invention includes light and sound. For example, if wireless power feeding from the power transmission unit 14 to the power reception unit 21 is normally performed, a current flows to the output side (plus line 30) of the power reception unit 21, and thus the first notification unit 45 causes, for example, an LED or a lamp. If it is, turn it on. Moreover, when the 1st alerting | reporting part 45 is a buzzer, for example, it will sound a buzzer. As an example in which these are applied, the first notification unit 45 has a connection line 45a branched from a branch point 45b in the middle of the plus line 30 as shown in FIG. 2 and a minus line 31 connected to the minus side. . Further, even when a current is flowing through the plus line 30, if the current value is not within a normal current value range (when a current exceeding a certain level is not detected), the first notification unit 45 may not notify the current value. . In this case, it can be seen that the facing between the power transmission unit 14 and the power reception unit 21 is insufficient.

  The 2nd alerting | reporting part 46 alert | reports whether the electrical storage part 23 is accumulating or the electrical storage is completed. The power storage of the power storage unit 23 is controlled by the power storage control unit 41. For example, if power storage is in progress, one notification is given, and if the power storage is complete, another notification is sent to the power storage control unit 41. When electricity from the power receiving unit 21 is not received, notification is not performed. Here, the difference between one notification and another notification is that when the second notification unit 46 is an LED or a lamp, for example, the color is changed, the lighting time is changed, the blinking interval is changed, the amount of display is changed, and the like. is there. Moreover, when the 2nd alerting | reporting part 46 is a buzzer, for example, the kind of sound of a buzzer is changed, the space | interval which a buzzer sounds is changed. Note that the display content may be changed for a liquid crystal, and the sound or voice content for a speaker. When the power storage unit 23 is a battery, it is a notification for charging. As these electric powers, the electric power coming from the power receiving unit 21 to the power storage control unit 41 can be used. Moreover, when electricity does not come to the electrical storage control part 41 from the power receiving part 21, the display and buzzer by LED and a lamp are not sounded. As an example in which these are applied, the second notification unit 46 has the connection line 46a connected to the power storage control unit 41 connected to the plus side and the minus line 31 connected to the minus side as shown in FIG.

  The 3rd alerting | reporting part 47 alert | reports that the electric power is supplied to the working machine side radio | wireless part 22. FIG. For example, if electric power is supplied from the power supply line 32 to the work implement side radio unit 22, if the third notification unit 47 is an LED or a lamp, for example, this current is turned on. Moreover, when the 3rd alerting | reporting part 47 is a buzzer, for example, it will sound a buzzer. As an example in which these are applied, the third notification unit 47 includes a connection line 47a branched from a branch point 47b in the middle of the power supply line 32 as shown in FIG. 2 and a minus line 31 connected to the minus side. . Further, when the power storage control unit 41 is in the middle of the power supply line 32, the branch point 47 b exists in the power supply line 32 on the work equipment side radio unit 22 side than the current control unit 42.

  Next, the flow of electricity will be described.

  When the work machine 2 is attached to the tractor 1 and the power transmission unit 14 and the power reception unit 21 face each other, when the switch 13 on the tractor 1 side is ON, the power from the tractor battery 11 is sent to the power transmission unit 14. Power is supplied to the power receiving unit 21 wirelessly and is converted into electric power by the power receiving unit 21. Here, when electricity is supplied to the power receiving unit 21, the first notification unit 45 notifies that. Then, the electricity sent to the power reception unit 21 is sensed by the detection unit 43, the switch of the current control unit 42 is turned on, and the power storage line 33 is connected. The electric power converted by the power receiving unit 21 can be used as a power source for the work machine side radio unit 22 through the plus line 30 and the power supply line 32. That is, when the switch 13 is ON, electric power is supplied to the work machine side radio unit 22 to enable reception, and a radio signal from the radio unit 10 can be received. At this time, electric power is supplied to the work implement side radio unit 22, and the third notification unit 47 notifies the power. Furthermore, the electric power from the power receiving unit 21 is sent to the power storage unit 23 through the plus line 30 and the power storage line 33 to store electricity. At this time, if the battery is being charged, the second notification unit 46 notifies that the battery is being charged. Further, when the amount of power stored in the power storage unit 23 exceeds a certain level, the power storage control unit 41 described above does not charge any more. At this time, if the power storage is completed, the second notification unit 46 notifies that the power storage is completed (the power storage amount is a certain level or more). Since the plus line 30 is disconnected by the switch in the power storage control unit 41, power is supplied from the power storage unit 23 to the work implement side radio unit 22. In addition, since the electric power is supplied also at this time, the notification is made by the third notification unit 47. Moreover, the electric power stored in the power storage unit 23 can be sent to the control unit 24, the relay 26, and the actuator 27 through the power storage line 33, the branch line 34, and the like, and can be used as these power sources. In addition, if the supplied power supplied wirelessly is sufficient, electricity can be directly supplied from the power receiving unit 21 to the control unit 24 through the plus line 30, the power storage line 33, and the branch line 34. A part of the 27 electric power may be provided.

  Note that when the branch point 36 is provided between the power storage control unit 41 and the power receiving unit 21 and the power storage control unit 41 is provided in the middle of the power storage line 33 on the power storage unit 23 side of the branch point 36, Even when the amount of electricity stored in the unit 23 exceeds a certain level, the work machine side radio unit 22 can be supplied with power from the power receiving unit 21 through the plus line 30 and the power supply line 32, and the third notification unit 47. The notification is made.

  When the switch 13 is OFF, the power from the tractor battery 11 is not sent to the power transmission unit 14. For this reason, electricity is not sent from the power receiving unit 21, and electricity is not sent to the work machine side radio unit 22. For this reason, the 1st alerting | reporting part 45 is not alert | reported that electricity has come. On the other hand, the electric power stored in the power storage unit 23 passes through the power storage line 33 and the branch line 34 (if the current control unit 42 is on the power receiving unit 21 side with respect to the branch line 34), the control unit 24, the relay 26, power can be transmitted to the actuator 27, but the power is not sent to the work implement side radio unit 22 due to the action of the current control unit 42 described above. For this reason, electricity does not flow to the work machine side radio unit 22 and signal reception from the radio unit 10 cannot be performed. For this reason, the 3rd alerting | reporting part 47 does not alert | report that the electric power is supplied to the working machine side radio | wireless part 22. FIG. When the switch 13 of the tractor 1 is OFF, the power from the power storage unit 23 is not consumed by the work implement side wireless unit 22, so that wasteful power consumption of the power storage unit 23 can be prevented. Even when the work implement 2 is detached from the tractor 1, wireless power feeding cannot be performed, so that the switch 13 is turned off on the work implement 2 side. The same control is also possible when the power transmission unit 14 and the power reception unit 21 are not sufficiently opposed and power is not sufficiently supplied to the work implement side radio unit 22. Also in these cases, the first notification unit 45 can be prevented from reporting that electricity is coming.

  FIG. 3 is a side view showing an example of a working machine to which the power feeding notification system for agricultural machines according to the present invention is applied. FIG. 4 is a plan view showing an example of a work machine to which the power supply notification system for agricultural machine of the present invention is applied. FIG. 5: is a front view which shows an example of the working machine with which the electric power alerting | reporting system of the agricultural working machine of this invention is applied. The working machine 2 in FIGS. 3 to 5 is a scraping work machine 50 provided with a folding mechanism, and the input shaft 51 side is attached to the tractor 1, and the scraping work is performed by rotating the scraping claw within the cover 52 and the flat plate 53. I do. In FIG. 3, the scraper working machine 50 is attached to the tractor 1, and the drawing of the tractor 1 is simplified and the main illustration is the tire 3.

  The electro-hydraulic cylinder 56 can be expanded and contracted to operate the rotating mechanism 57 to fold the side working portion 55 and shorten the entire width of the scraping work machine 50. The extension rake opening / closing device 60 can select whether to use the extension rake 61 by rotating the extension rake 61 left and right via the control bar 62 and the wire 63 as the internal motor rotates. . The electric hydraulic cylinder 56 and the extended rake opening / closing device 60 (motor thereof) can be operated by the operation unit of the radio unit 10 as the actuator 27, so that efficient farm work can be performed. In particular, the electric hydraulic cylinder 56 consumes a large amount of power, and is assumed to exceed the power transmitted from the power transmission unit 14 to the power reception unit 21.

  The connecting device 80 is attached to the tractor 1 and the scraping work machine 50 (work machine 2) is mounted as shown in FIG. The connection device 80 is attached to the tractor 1 by attaching the tip of the top link 5 of the tractor 1 to the attachment hole 82 installed on the front side (the tractor 1 side) at the upper center of the connection device 80. Are attached to the attachment pins 89 on both lower sides of the connecting device 80, the connecting device 80 is attached to the tractor 1.

  On the side of the scraping work machine 50 side, a connecting device (mast 71, hitch 73) for mounting on the connecting device 80 is provided. The mast 71 is attached to the upper part of the mission case 75 provided with the input shaft 51, and the left and right hitches 73 are attached to attachment plates 77 joined to frame pipes 76 at both ends of the mission case 75, respectively. A top pin 72 is provided at the tip of the mast 71, and a lower pin 74 is provided at the tip of the hitch 73.

  With the connecting device 80 attached to the tractor 1, the operator pulls the handle 91, operates the lower link 6 at the driver's seat of the tractor 1 to raise the connecting device 80, and lowers the upper portion of the connecting device 80 from the lower side. Then, the top hook 81 installed on the rear side (the side of the scraping work machine 50) is hooked on the top pin 72 of the mast 71. Then, the lower pin 74 of the hitch 73 enters the groove 88 formed on the rear side of the side plate 85 joined to both lower sides of the connecting device 80, and the tip of the joint 7 is also inserted into the input shaft 51. Thereby, the work machine 2 is supported at three points. When the handle 91 is returned (pushed) and the hook 84 interlocked with the handle 91 is locked, the mounting is completed.

  At this time, when the power transmission unit 14 is attached to the connecting device 80 side, the power receiving unit 21 is attached to the cutting work machine 50 (working machine 2) side, and the cutting work machine 50 is attached to the connecting device 80, If the power receiving unit 21 is opposed to a position where power can be supplied wirelessly, the operator needs to get out of the tractor 1 and connect for power supply when the work implement 2 is attached to or detached from the tractor 1. There is no. As a specific example, the power transmission unit 14 attaches the power transmission side mounting member 101 to the main pipe 83 connecting the upper member 90 (FIG. 3) side having the top hook 81 and the mounting hole 82 of the coupling device 80 and the side plate 85 side, Installed. The power transmission unit 14 is installed such that the power transmission unit 14 is arranged behind the power transmission side mounting member 101. The power receiving unit 21 is installed on the power receiving side mounting member 102 attached to the plate of the hitch 73. At this time, the power receiving side mounting member 102 is formed to extend above the hitch 73 in order to match the mounting height of the power receiving unit 21, and the power receiving unit 21 is arranged on the upper front side of the power receiving side mounting member 102. When the scraping work machine 50 is attached to the connecting device 80, the power transmission unit 14 and the power reception unit 21 face each other at the same height and the same lateral position. The approaching distance can be, for example, 0 mm to 20 mm, preferably 5 mm to 10 mm.

  Further, the scraping work machine 50 has a notification device 95. The notification device 95 includes a first notification unit 45, a second notification unit 46, and a third notification unit 47. In FIG. 5, the first notification unit 45, the second notification unit 46, and the third notification unit 47 are included. They are arranged side by side facing the front, and are lined up to the right when viewed from the front in this order. Here, the notification device 95 may have an LED or a lamp. The notification device 95 is installed via the notification device attachment member 103, and the notification device attachment member 103 is attached to the hitch 73 or the attachment plate 77. Alternatively, a hole for attaching the attachment plate 77 and the hitch 73 may be used for attachment. The power receiving side attachment member 102 can be attached to the left and right one hitch 73 side, and the alarm device attachment member 103 can be attached to the left and right other hitch 73 (attachment plate 77) side. In the figure, the power receiving side mounting member 102 and the power receiving unit 21 are on the left side when viewed from the front, and the notification device mounting member 103 and the notification device 95 are on the right side.

  In the example of FIGS. 3 to 5, the work machine side radio unit 22 and the power storage unit 23 are mounted on the cover 52, and the control unit 24 is mounted on the mission case 75.

  FIG. 6 is a plan view showing another installation example of the notification device in the work machine to which the power supply notification system for the agricultural machine according to the present invention is applied. FIG. 7: is a front view which shows another example of installation of the alerting | reporting apparatus in the working machine with which the electric power feeding alerting | reporting system of the agricultural working machine of this invention is applied. FIGS. 6 and 7 are different in the attachment of the alarm device 95 described in FIGS. 4 and 5, and the other parts are the same, and are partially omitted.

  The power receiving side mounting member 102 ′ is mounted with the power receiving unit 21 in the same manner as the power receiving side mounting member 102 of FIGS. 4 and 5, and the alarm device 95 can be mounted above the power receiving unit 21. For this reason, the power receiving unit 21 and the notification device 95 can be attached integrally. The power receiving side mounting member 102 ′ may be mounted on the left or right hitch 73 side. In the drawing, the power receiving side mounting member 102 ′, the power receiving unit 21, and the notification device 95 are configured on the left side when viewed from the front. In addition, the notification device 95 may be directly attached to the power receiving unit 21 to have an integrated configuration.

  3-7, for example, when the operator wants to move the electrohydraulic cylinder 56, the key of the tractor 1 is attached to the tractor 1 with the scraping work machine 50 (work machine 2) being mounted. The switch 13 is turned ON, for example, by turning the switch ON. At this time, when power is transmitted from the tractor battery 11 via the wireless power feeding of the power transmission unit 14 and the power reception unit 21, the first notification unit 45 notifies the user by lighting or the like. Further, when power is supplied to the work implement side radio unit 22, the third notification unit 47 notifies it by lighting or the like. Further, the power storage state of the power storage unit 23 can be known by lighting or the like by the second notification unit 46. The worker confirms that the wireless power feeding is performed by the first notification unit 45, that the power storage unit 23 is charged more than a certain amount by the second notification unit 46, and the work unit side radio unit 22 by the third notification unit 47. If it is known that electric power is supplied, an operation signal is sent to the work machine side radio unit 22 by operating the operation unit of the radio unit 10, and electric power is supplied from the power storage unit 23 by control of the control unit 24. The hydraulic cylinder 56 can be actuated. Even when the second notification unit 46 displays that the power is being stored, the electrohydraulic cylinder 56 can be operated if the capacity of the power storage unit 23 is sufficient, and the operation can be performed by waiting for a certain period of time.

  As described above, the embodiment of the present invention has been described. However, the present invention is not limited to the illustrated scraping work machine, and can be applied to all work machines that are attached to a tractor and perform farm work. In addition, a partial configuration of the above-described embodiment may be replaced with a partial configuration of another embodiment, or may be used in combination with another configuration as necessary.

DESCRIPTION OF SYMBOLS 1 Tractor 2 Work machine 10 Radio | wireless part 11 Tractor battery 12 Power supply harness 13 Switch 14 Power transmission part 21 Power receiving part 22 Work machine side radio | wireless part 23 Power storage part 24 Control part 27 Actuator 30 Plus line 31 Negative line 32 Feed line 33 Power storage line 41 Power storage Control unit 42 Current control unit 45 First notification unit 46 Second notification unit 47 Third notification unit 50 Scraper working machine 56 Electric hydraulic cylinder 60 Extended rake switching device 95 Notification device 101 Power transmission side mounting member 102, 102 'Power reception side mounting member 103 Alarm equipment mounting member

Claims (7)

A power feeding notification system that is applied to a work machine that is detachable from a tractor and performs farm work
A power transmission unit installed on the tractor side, a power reception unit installed on the work machine side, a work machine side radio unit installed on the work machine and capable of supplying power from the power reception unit, and installed on the work machine And a power storage unit capable of storing power using power from the power receiving unit, a control unit installed in the work machine, an actuator installed in the work machine and supplied with power from the power storage unit, and installed in the work machine And a first notification unit
Wireless power feeding is possible from the power transmission unit to the power reception unit,
Said 1st alerting | reporting part alert | reports when the electric power feeding is carried out from the said power transmission part to the said power receiving part, The electric power alerting | reporting system of the agricultural machine characterized by the above-mentioned. In the agricultural machine power feeding notification system according to claim 1,
A power feeding notification system for an agricultural machine, comprising: a power storage control unit that stops power transmission from the power receiving unit to the power storage unit when the power stored in the power storage unit is equal to or greater than a certain level. In the electric power alerting | reporting system of the agricultural machine of Claim 2,
A second notification unit, wherein the second notification unit notifies when the power is supplied to the power storage unit and when the power stored in the power storage unit is equal to or greater than a certain level. A power supply notification system for agricultural machines. In the farming machine power feeding notification system according to any one of claims 1 to 3,
A power supply notification system for an agricultural machine, comprising a third notification unit, wherein the third notification unit performs notification when power is supplied to the work implement-side radio unit. In the farming machine power feeding notification system according to any one of claims 1 to 4,
The notification is performed by a light emitting member or a member that emits a sound. In the farming machine power feeding notification system according to any one of claims 1 to 5,
A current control unit, and when the current control unit determines that the power receiving unit is not wirelessly powered, the power stored in the power storage unit is controlled not to be consumed by the work unit side radio unit. A power supply notification system for agricultural machines. In the farming machine power feeding notification system according to any one of claims 1 to 6,
The power storage notification system for an agricultural machine, wherein the power storage unit is a battery or a capacitor.

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