A control system for the working bucket of an insulated boom truck robot

Abstract

The invention discloses a control system for a working bucket of an insulated boom truck robot, and relates to the technical field of live working. When the boom truck is powered on, a controller off the truck outputs an output to a switching valve of a hydraulic circuit of the working bucket according to a designed time, and a hydraulic oil circuit enters a valve group of the working bucket. The valve group of the working bucket uses an O-type neutral position function, so there will be a short-term pressure build-up at the moment of power-on. A pressure relay is connected to a pressure measuring port, and a switch of the pressure relay is turned on when the pressure is built-up. A power supply of a working bucket controller is connected to a pressure relay switch, so that the working bucket controller is powered on, and power is output to a power relay at the same time. The power relay switch is connected in parallel to a power circuit. At this time, the platform hydraulic circuit stops supplying oil, and after the hydraulic pressure relay is disconnected, the power relay can still continue to supply power, thereby realizing an automatic power-on function of the working bucket when no one is operating the working bucket.

Description

Technical Field

[0001] The invention relates to the technical field of live working, and in particular to a control system for a working bucket of an insulating boom truck robot. Background Art

[0002] With the rapid development of national infrastructure and urban construction, more and more insulated boom trucks with robot working buckets are being used in power grid maintenance work. For insulated boom trucks with robot working buckets, due to unmanned operation of the working bucket, if the vehicle loses power unexpectedly during operation, it cannot be powered on manually, which will affect the normal use of the vehicle. The conventional practice is to use a self-locking switch as the power switch of the working bucket to ensure that the working bucket remains powered for a long time, but this will increase the power consumption rate of the working bucket battery. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an insulated bucket robot control system, comprising:

[0004] A working bucket hydraulic circuit is used to provide hydraulic power to the working bucket;

[0005] A working bucket hydraulic circuit switching valve is used to control the hydraulic oil circuit to switch to communicate with the working bucket hydraulic circuit;

[0006] The pressure relay is installed on the hydraulic circuit of the working bucket and is used to measure the hydraulic pressure of the hydraulic circuit of the working bucket. A working pressure is preset. When the hydraulic pressure of the hydraulic circuit of the working bucket is equal to the working pressure, the switch of the pressure relay is closed.

[0007] Working bucket valve group, the working bucket valve group is set to O-type middle position function;

[0008] The vehicle disembarkation controller is electrically connected to the hydraulic circuit switching valve of the working bucket and is used to continuously output a control signal, and the control signal is used to control the conduction direction of the hydraulic circuit switching valve of the working bucket;

[0009] Power relay, the normally open contact of the power relay and the switch contact of the pressure relay are connected in parallel in the same power circuit;

[0010] The working bucket controller is used to control the closing of the normally open contacts of the power supply relay when its own power supply is turned on.

[0011] The technical solution further defined in the present invention is:

[0012] Furthermore, a pressure measuring port for connecting a pressure relay is provided on the hydraulic circuit of the working bucket, and the pressure measuring port is used to provide a detection point for the pressure relay to measure the hydraulic pressure of the hydraulic circuit of the working bucket.

[0013] In the aforementioned insulated boom truck robot working bucket control system, the working bucket valve group is provided with an oil inlet for hydraulic oil to enter.

[0014] In the aforementioned insulated bucket truck robot working bucket control system, the duration of the control signal output by the disembarkation controller can be adjusted and set.

[0015] In the aforementioned insulated boom truck robot working bucket control system, a 12V starting battery is provided in the power circuit where the power relay is located.

[0016] The beneficial effects of the present invention are:

[0017] In the present invention, when the boom truck is powered on, the off-board controller outputs the switching valve of the hydraulic circuit of the working bucket according to the designed time, and the hydraulic oil circuit enters the working bucket valve group. The working bucket valve group uses the O-type neutral function, so there will be a short period of pressure buildup at the moment of power-on. A pressure relay is connected to the pressure measuring port, and the pressure relay switch is turned on when the pressure is built up. The power supply of the working bucket controller is connected to the pressure relay switch to power on the working bucket controller, and at the same time, power is output to the power relay. The power relay switch is connected in parallel to the power circuit. At this time, the platform hydraulic circuit stops supplying oil. After the hydraulic pressure relay is disconnected, the power relay can still continue to supply power, thereby realizing the automatic power-on function of the working bucket when there is no operator in the working bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the connection of the pressure relay in the embodiment of the present invention.

[0020] Among them: 1. Working bucket hydraulic circuit; 2. Working bucket hydraulic circuit switching valve; 3. Pressure relay; 4. Working bucket valve group; 5. Getting off controller; 6. Power relay; 7. Working bucket controller; 8. Pressure measuring port; 9. Oil inlet; 10. Starting battery. DETAILED DESCRIPTION

[0021] This embodiment provides an insulated bucket robot working bucket control system, such as Figure 1 to Figure 2 Shown, including

[0022] Working bucket hydraulic circuit 1, used to provide hydraulic power to the working bucket;

[0023] The working bucket hydraulic circuit switching valve 2 is used to control the hydraulic oil circuit to switch to be connected with the working bucket hydraulic circuit 1;

[0024] The pressure relay 3 is installed on the working bucket hydraulic circuit 1 and is used to measure the hydraulic pressure of the working bucket hydraulic circuit 1; and a working pressure is preset. When the hydraulic pressure of the working bucket hydraulic circuit 1 is equal to the working pressure, the switch of the pressure relay 3 is closed;

[0025] Working bucket valve group 4, the working bucket valve group 4 is set to O-type middle position function;

[0026] The vehicle disembarkation controller 5 is electrically connected to the working bucket hydraulic circuit switching valve 2 and is used to continuously output a control signal, and the control signal is used to control the conduction direction of the working bucket hydraulic circuit switching valve 2;

[0027] A power relay 6, the normally open contact of the power relay 6 and the switch contact of the pressure relay 3 are connected in parallel in the same power circuit;

[0028] The working bucket controller 7 is used to control the normally open contact of the power supply relay 6 to close when its own power supply is turned on.

[0029] like Figure 1 As shown, when the robot working bucket needs to be powered on and started, the getting-off controller 5 first outputs a control signal to control the electromagnet of the working bucket hydraulic circuit switching valve 2, and the hydraulic oil circuit is switched to the working bucket hydraulic circuit 1 through the working bucket hydraulic circuit switching valve 2, and the oil circuit enters the oil inlet 9 of the working bucket valve group 4. Because the working bucket valve group 4 uses an O-type neutral function, when the robot working bucket is not in motion, the oil circuit enters the oil inlet 9 of the working bucket valve group 4 and generates pressure buildup. The pressure at the pressure measuring port 8 rises, and after the pressure relay 3 detects that the hydraulic pressure reaches the set pressure, the switch of the pressure relay 3 is closed. The working time of this process can be set by the output time of the output signal of the getting-off controller 5, which should not be too long. The short signal output can effectively avoid long-term pressure buildup in the hydraulic oil circuit.

[0030] like Figure 2 As shown, the robot working bucket is equipped with a 12V starting battery 10, and the switch contacts of the pressure relay 3 and the normally open contacts of the power relay 6 are connected in parallel in the power circuit; the pressure build-up in the working bucket hydraulic circuit 1 triggers the normally open contacts of the pressure relay 3 to close, and the power of the working bucket controller 7 is turned on, controlling itself to power on and run the starting program. After power-on, the working bucket controller 7 continuously outputs signals to the power relay 6, the power relay 6 works, and the normally open contacts of the power relay 6 are closed.

[0031] After the output signal of the getting-off controller 5 stops outputting for the set time, the working bucket hydraulic circuit switching valve 2 stops supplying oil to the robot working bucket, the pressure at the pressure measuring port 8 of the working bucket valve group 4 disappears, the pressure relay 3 stops working, the normally open contact is disconnected, but the normally open contact of the power relay 6 continues to be closed, and the working bucket controller 7 is powered normally. At this time, the working bucket is powered on successfully, and the working bucket controller 7 can continue to power on. The above process realizes automatic power-on operation when there is no operator in the working bucket.

[0032] When the boom truck is powered on, the off-board controller 5 outputs the switching valve 2 of the working bucket hydraulic circuit according to the designed time, and the hydraulic oil circuit enters the working bucket valve group 4. The working bucket valve group 4 uses the O-type neutral function, so there will be a brief pressure build-up at the moment of power-on. The pressure relay 3 is connected to the pressure measuring port 8, and the pressure relay 3 switch is turned on when the pressure is built-up. The power supply of the working bucket controller 7 is connected to the pressure relay 3 switch, so that the working bucket controller 7 is powered on, and the power supply relay 6 is output and powered at the same time. The power relay 6 switch is connected in parallel to the power circuit. At this time, the platform hydraulic circuit stops supplying oil. After the hydraulic pressure relay 3 is disconnected, the power relay 6 can still continue to supply power, thereby realizing the automatic power-on function of the working bucket.

[0033] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. An insulated bucket robot control system, characterized in that: include A working bucket hydraulic circuit (1), used for providing hydraulic power to the working bucket; A working bucket hydraulic circuit switching valve (2) is used to control the hydraulic oil circuit to switch to communicate with the working bucket hydraulic circuit (1); A pressure relay (3) is installed on the working bucket hydraulic circuit (1) and is used to measure the hydraulic pressure of the working bucket hydraulic circuit (1); and a working pressure is preset. When the hydraulic pressure of the working bucket hydraulic circuit (1) is equal to the working pressure, the switch of the pressure relay (3) is closed; A working bucket valve assembly (4), wherein the working bucket valve assembly (4) is set to an O-type neutral position function; An alighting controller (5) is electrically connected to the working bucket hydraulic circuit switching valve (2) and is used to continuously output a control signal, wherein the control signal is used to control the conduction direction of the working bucket hydraulic circuit switching valve (2); A power relay (6), wherein the normally open contact of the power relay (6) and the switch contact of the pressure relay (3) are connected in parallel in the same power circuit; The working bucket controller (7) is used to control the normally open contact of the power supply relay (6) to close when its own power supply is turned on.

2. According to claim 1, the insulated bucket robot control system is characterized in that: The working bucket hydraulic circuit (1) is also provided with a pressure measuring port (8) to which the pressure relay (3) is connected. The pressure measuring port (8) is used to provide a detection point for the pressure relay (3) to measure the hydraulic pressure of the working bucket hydraulic circuit (1).

3. The insulated bucket robot control system according to claim 1 is characterized in that: The working bucket valve assembly (4) is provided with an oil inlet (9) for hydraulic oil to enter.

4. The insulated bucket robot control system according to claim 1 is characterized in that: The duration of the control signal output by the vehicle getting off controller (5) can be adjusted and set.

5. The insulated bucket robot control system according to claim 1 is characterized in that: A 12V starting battery (10) is provided in the power circuit where the power relay (6) is located.

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