CN209925350U - Excavator accessory control system - Google Patents
Excavator accessory control system Download PDFInfo
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- CN209925350U CN209925350U CN201920549586.5U CN201920549586U CN209925350U CN 209925350 U CN209925350 U CN 209925350U CN 201920549586 U CN201920549586 U CN 201920549586U CN 209925350 U CN209925350 U CN 209925350U
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Abstract
The utility model aims at providing an excavator accessory control system, which comprises a power supply device, a control handle, an accessory control device, an accessory multi-way electromagnetic valve group, a pilot electromagnetic valve, an excavator standby valve, an accessory control relay, an accessory motor, an accessory oil cylinder, an oil inlet pipe and an oil return pipe; the control handle is connected with the accessory control device; the accessory control device is connected with the accessory control relay and the pilot electromagnetic valve; the accessory control relay is connected with the accessory motor and the accessory oil cylinder; one end of the pilot electromagnetic valve is connected with the oil inlet end of a pilot oil source of the excavator; the other end of the oil pipe is communicated with a spare valve of the excavator, the spare valve of the excavator is respectively communicated with the oil inlet pipe, the oil return pipe and an oil return end of a pilot oil source of the excavator, and the spare valve of the excavator is communicated with an oil way of the accessory multi-way electromagnetic valve group through the oil inlet pipe and the oil return pipe. The control system overcomes the defects of the prior art and has the characteristics of simple structure, convenient modification and wide application range.
Description
Technical Field
The utility model relates to an excavator accessory equipment field, concretely relates to excavator accessory control system.
Background
In the conventional method for modifying the used accessories of the excavator, a pure hydraulic control mode is used, all valves are distributed discretely and are not concentrated, a large number of pipelines are additionally arranged, pipe clamps for fixing the pipelines need to be additionally welded, drilling and cutting are used for installing hydraulic valves, and when the accessories need to do composite movement, the hydraulic control logic is relied on for realizing the hydraulic control mode, so that the modification degree is deep, the modification difficulty is high, and a higher hydraulic professional knowledge level is required; moreover, after the modification is completed, when the accessory needs to be replaced, more pipelines need to be removed and connected, the removal and installation work is complicated, and more hydraulic oil is leaked and wasted.
Disclosure of Invention
The utility model aims at providing an excavator accessory control system, this control system overcomes prior art defect, has simple structure, reforms transform convenient, application scope wide characteristics.
The technical scheme of the utility model as follows:
an excavator accessory control system comprises a power supply device, a control handle, an accessory control device, an accessory multi-way electromagnetic valve group, a pilot electromagnetic valve, an excavator standby valve, an accessory control relay, an accessory motor, an accessory oil cylinder, an oil inlet pipe and an oil return pipe;
the control handle, the accessory multi-path electromagnetic valve group, the pilot electromagnetic valve and the accessory control relay are all electrically connected with the power supply device and are powered by the power supply device;
the control handle is connected with the accessory control device and used for sending an operation instruction to the accessory control device;
the accessory control device is electrically connected with the accessory control relay and the pilot electromagnetic valve, and the accessory control relay is electrically connected with the accessory motor and the accessory oil cylinder;
the control handle input is provided with a plurality of control keys; based on key control, the control handle sends a corresponding instruction to the accessory control device, and the accessory control device transmits the instruction to the accessory control relay so as to control the accessory motor to rotate forwards or backwards and control the accessory oil cylinder to extend or retract;
one end of the pilot electromagnetic valve is connected with an oil inlet end of a pilot oil source of the excavator, and the other end of the pilot electromagnetic valve is communicated with a spare valve of the excavator; based on key control, the control handle sends an opening or closing instruction to control the connection or disconnection of a pilot oil source of the excavator and an excavator standby valve;
the spare valve of the excavator is respectively communicated with the oil inlet pipe, the oil return pipe and the oil return end of a pilot oil source of the excavator, the spare valve of the excavator is communicated with an oil way of the accessory multi-way electromagnetic valve group through the oil inlet pipe and the oil return pipe, the multi-way electromagnetic valve group comprises a plurality of groups of electromagnetic valve switches, the accessory motor and the accessory oil cylinder are respectively connected with one group of electromagnetic valve switches of the multi-way electromagnetic valve group, and oil outlets and oil inlets of the accessory motor and the accessory oil cylinder are respectively communicated with oil inlets and oil outlets on the corresponding electromagnetic valve switches.
Preferably, the control handle comprises a left handle and a right handle, the left handle and the right handle comprise two keys which are respectively a left handle key, a right handle key and a left handle key, and the left handle key, the right handle key and the left handle key are electrically connected with the pilot electromagnetic valve through an accessory control device;
the accessory control device comprises an accessory motor forward rotation relay, an accessory oil cylinder extending relay and an accessory oil cylinder retracting relay;
the left handle button and the right handle button are respectively and electrically connected with the accessory motor forward relay and the accessory motor forward relay;
the right handle left button and the right handle right button are respectively and electrically connected with the accessory oil cylinder extending relay and the accessory oil cylinder retracting relay.
Preferably, the circuit structure of the accessory control device comprises diodes D1-D15, light emitting diodes LED1-LED11, resistors R1-R19;
the anode of the diode D11, one end of the resistor R1, the cathode of the diode D1 and the 85 end of the accessory oil cylinder extending out of the relay are respectively connected with the left handle button; the other end of the resistor R1 is connected with the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1, the anode of the diode D1 and the 86 end of the accessory oil cylinder extending out of the relay are respectively connected with the cathode of the power supply device; one end of the resistor R2, the cathode of the diode D2 and the 87 end of the accessory oil cylinder extending relay are respectively connected with the accessory oil cylinder extending control output end; the other end of the resistor R2 is connected with the anode of the light-emitting diode LED2, and the cathode of the light-emitting diode LED2 and the anode of the diode D2 are respectively connected with the cathode of the power supply device; one end of the accessory oil cylinder, which extends out of a 30 terminal of the relay, is connected with the anode of the power supply device, the other end of the accessory oil cylinder is connected with a change-over switch N, and the change-over switch N is respectively communicated with an 87 end or an 87A end of the accessory oil cylinder, which extends out of the relay, according to a control instruction;
the anode of the diode D12, one end of the resistor R3, the cathode of the diode D3 and the 85 end of the accessory oil cylinder retraction relay are respectively connected with the right button of the left handle; the other end of the resistor R3 is connected with the anode of the light-emitting diode LED3, and the cathode of the light-emitting diode LED3, the anode of the diode D3 and the 86 end of the accessory oil cylinder retraction relay are respectively connected with the cathode of the power supply device; one end of the resistor R4, the negative electrode of the diode D4 and the retraction control end of the accessory oil cylinder are respectively connected with the 87 end of the accessory oil cylinder retraction relay; the other end of the resistor R4 is connected with the anode of the light-emitting diode LED4, and the cathode of the light-emitting diode LED4 and the anode of the diode D4 are respectively connected with the cathode of the power supply device; one end of a 30 terminal of the accessory oil cylinder retraction relay is connected with the anode of the power supply device, the other end of the 30 terminal of the accessory oil cylinder retraction relay is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory oil cylinder retraction relay according to a control instruction;
the anode of the diode D13, one end of the resistor R5, the cathode of the diode D5 and the 85 end of the accessory motor forward rotation relay are respectively connected with the left button of the right handle; the other end of the resistor R5 is connected with the anode of the light-emitting diode LED5, and the cathode of the light-emitting diode LED5, the anode of the diode D5 and the 86 end of the accessory motor forward relay are all connected with the cathode of the power supply device; one end of the resistor R6, the negative electrode of the diode D6 and the control end of forward rotation of the accessory motor are connected with the 87 end of the accessory motor forward rotation relay, the other end of the resistor R6 is connected with the positive electrode of the light-emitting diode LED6, and the negative electrode of the light-emitting diode LED6 and the positive electrode of the diode D6 are respectively connected with the negative electrode of the power supply device; one end of a 30 terminal of the accessory motor forward relay is connected with the positive pole of the power supply device, the other end of the 30 terminal is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor forward relay according to a control command;
the anode of the diode D14, one end of the resistor R7, the cathode of the diode D7 and the 85 end of the accessory motor reversal relay are all connected with the right handle right button; the other end of the resistor R7 is connected with the anode of the light-emitting diode LED7, and the cathode of the light-emitting diode LED7, the anode of the diode D7 and the 86 end of the accessory motor reversal relay are all connected with the cathode of the power supply device; one end of the resistor R8, the cathode of the diode D8 and the control end of the accessory motor reverse rotation are connected with the 87 end of the accessory motor reverse rotation relay, the other end of the resistor R8 is connected with the anode of the light-emitting diode LED8, and the cathode of the light-emitting diode LED8 and the anode of the diode D8 are respectively connected with the cathode of the power supply device; one end of the 30 terminal of the accessory motor reversal relay is connected with the positive pole of the power supply device, the other end is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor reversal relay according to a control command.
Preferably, the pilot electromagnetic valve comprises a pilot electromagnetic valve relay, the cathode of the diode D11, the cathode of the diode D12, the cathode of the diode D13 and the cathode of the diode D14 are all connected with the 85 end of the pilot electromagnetic valve relay, and one end of the resistor R9 and the cathode of the diode D9 are all connected with the 85 end of the pilot electromagnetic valve relay; the other end of the resistor R9 is connected with the anode of the light-emitting diode LED9, and the cathode of the light-emitting diode LED9 and the anode of the diode D9 are respectively connected with the cathode of the power supply device; one end of a resistor R19 and the cathode of a diode D15 are respectively connected with the anode of the power supply device, the other end of a resistor R19 is connected with the anode of a light-emitting diode LED11, and the cathode of the light-emitting diode LED11, the anode of a diode D15 and the 86 end of a pilot electromagnetic valve relay are respectively connected with the cathode of the power supply device; one end of the resistor R10, the cathode of the diode D10 and the control end of the pilot solenoid valve are connected with the 87 end of the pilot solenoid valve relay; the other end of the resistor R10 is connected to the anode of the light emitting diode LED10, and the cathode of the light emitting diode LED10 and the anode of the diode D10 are connected to the cathode of the power supply device, respectively.
The utility model discloses an use and working process as follows:
the control handle, the accessory control device, the accessory control relay and the pilot electromagnetic valve are arranged on a control console of the excavator and are connected through cables, the accessory control relay is connected with the accessory hydraulic motor and the accessory hydraulic oil cylinder, and the pilot electromagnetic valve is connected with a spare valve of the excavator and is communicated with an oil inlet pipe and an oil return pipe of the excavator; the accessory multi-path electromagnetic valve set is arranged on an accessory, one end of the accessory multi-path electromagnetic valve set is connected with an oil inlet pipe and an oil return pipe of the excavator, and the other end of the accessory multi-path electromagnetic valve set is communicated with an accessory hydraulic motor and an accessory hydraulic oil cylinder;
when the control device works, the control handle outputs a control instruction, and the control instruction reaches the corresponding accessory control relay through the accessory control device to control the accessory to execute corresponding operation; meanwhile, the control instruction reaches the pilot electromagnetic valve, and the pilot electromagnetic valve is controlled to open the corresponding oil way, so that the accessory completes corresponding operation under the coordination of hydraulic oil.
The accessory control system of the utility model utilizes the structure of electro-hydraulic combined control, and the circuit control logic replaces hydraulic control, thereby improving the control convenience and reducing the refitting cost; when the excavator is refitted, the refitting can be completed only by connecting the oil inlet pipe, the oil return pipe and the corresponding accessory control cable between the excavator and the accessory, the connection is simple and convenient, and the switching of the accessory is more convenient; meanwhile, the corresponding light emitting diodes are arranged in the accessory control device corresponding to each operation and are used as indicator lights, so that the convenience of application is improved, and the occurrence of misoperation is avoided; to sum up, the utility model discloses an accessory control system is simple easy-to-use, and the repacking is convenient, and installation and later maintenance are with low costs.
Drawings
FIG. 1 is a schematic connection diagram of an excavator accessory control system of the present invention;
FIG. 2 is an oil circuit diagram of the excavator accessory control system of the present invention;
fig. 3 is a circuit diagram of the excavator accessory control system of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following examples.
Example 1
As shown in fig. 1-3, the utility model provides an excavator accessory control system, including power supply unit, control handle, accessory control device, accessory multichannel solenoid valve group, guide's solenoid valve, excavator spare valve, accessory control relay, accessory motor, accessory hydro-cylinder, oil inlet pipe, oil return pipe;
the control handle, the accessory multi-path electromagnetic valve group, the pilot electromagnetic valve and the accessory control relay are all electrically connected with the power supply device and are powered by the power supply device;
the control handle is connected with the accessory control device and used for sending an operation instruction to the accessory control device;
the accessory control device is electrically connected with the accessory control relay and the pilot electromagnetic valve, and the accessory control relay is electrically connected with the accessory motor and the accessory oil cylinder;
the control handle input is provided with a plurality of control keys; based on key control, the control handle sends a corresponding instruction to the accessory control device, and the accessory control device transmits the instruction to the accessory control relay so as to control the accessory motor to rotate forwards or backwards and control the accessory oil cylinder to extend or retract;
one end of the pilot electromagnetic valve is connected with an oil inlet end of a pilot oil source of the excavator, and the other end of the pilot electromagnetic valve is communicated with a spare valve of the excavator; based on key control, the control handle sends an opening or closing instruction to control the connection or disconnection of a pilot oil source of the excavator and an excavator standby valve;
the spare valve of the excavator is respectively communicated with an oil inlet pipe, an oil return pipe and an oil return end of a pilot oil source of the excavator, the spare valve of the excavator is communicated with an oil way of an accessory multipath electromagnetic valve group through the oil inlet pipe and the oil return pipe, the multipath electromagnetic valve group comprises a plurality of groups of electromagnetic valve switches, an accessory motor and an accessory oil cylinder are respectively connected with one group of electromagnetic valve switches of the multipath electromagnetic valve group, and oil outlets and oil inlets of the accessory motor and the accessory oil cylinder are respectively communicated with oil inlets and oil outlets on the corresponding electromagnetic valve switches;
the control handle comprises a left handle and a right handle, the left handle and the right handle respectively comprise two keys, namely a left handle key, a right handle key, a left handle key and a right handle key, and the left handle key, the right handle key, the left handle key, the right handle key and the right handle key are electrically connected with the pilot electromagnetic valve through an accessory control device;
the accessory control device comprises an accessory motor forward rotation relay, an accessory oil cylinder extending relay and an accessory oil cylinder retracting relay;
the left handle button and the right handle button are respectively and electrically connected with the accessory motor forward relay and the accessory motor forward relay;
the right handle left button and the right handle right button are respectively and electrically connected with the accessory oil cylinder extending relay and the accessory oil cylinder retracting relay;
the circuit structure of the accessory control device comprises diodes D1-D15, light emitting diodes LED1-LED11 and resistors R1-R19;
the anode of the diode D11, one end of the resistor R1, the cathode of the diode D1 and the 85 end of the accessory oil cylinder extending out of the relay are respectively connected with the left handle button; the other end of the resistor R1 is connected with the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1, the anode of the diode D1 and the 86 end of the accessory oil cylinder extending out of the relay are respectively connected with the cathode of the power supply device; one end of the resistor R2, the cathode of the diode D2 and the 87 end of the accessory oil cylinder extending relay are respectively connected with the accessory oil cylinder extending control output end; the other end of the resistor R2 is connected with the anode of the light-emitting diode LED2, and the cathode of the light-emitting diode LED2 and the anode of the diode D2 are respectively connected with the cathode of the power supply device; one end of the accessory oil cylinder, which extends out of a 30 terminal of the relay, is connected with the anode of the power supply device, the other end of the accessory oil cylinder is connected with a change-over switch N, and the change-over switch N is respectively communicated with an 87 end or an 87A end of the accessory oil cylinder, which extends out of the relay, according to a control instruction;
the anode of the diode D12, one end of the resistor R3, the cathode of the diode D3 and the 85 end of the accessory oil cylinder retraction relay are respectively connected with the right button of the left handle; the other end of the resistor R3 is connected with the anode of the light-emitting diode LED3, and the cathode of the light-emitting diode LED3, the anode of the diode D3 and the 86 end of the accessory oil cylinder retraction relay are respectively connected with the cathode of the power supply device; one end of the resistor R4, the negative electrode of the diode D4 and the retraction control end of the accessory oil cylinder are respectively connected with the 87 end of the accessory oil cylinder retraction relay; the other end of the resistor R4 is connected with the anode of the light-emitting diode LED4, and the cathode of the light-emitting diode LED4 and the anode of the diode D4 are respectively connected with the cathode of the power supply device; one end of a 30 terminal of the accessory oil cylinder retraction relay is connected with the anode of the power supply device, the other end of the 30 terminal of the accessory oil cylinder retraction relay is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory oil cylinder retraction relay according to a control instruction;
the anode of the diode D13, one end of the resistor R5, the cathode of the diode D5 and the 85 end of the accessory motor forward rotation relay are respectively connected with the left button of the right handle; the other end of the resistor R5 is connected with the anode of the light-emitting diode LED5, and the cathode of the light-emitting diode LED5, the anode of the diode D5 and the 86 end of the accessory motor forward relay are all connected with the cathode of the power supply device; one end of the resistor R6, the negative electrode of the diode D6 and the control end of forward rotation of the accessory motor are connected with the 87 end of the accessory motor forward rotation relay, the other end of the resistor R6 is connected with the positive electrode of the light-emitting diode LED6, and the negative electrode of the light-emitting diode LED6 and the positive electrode of the diode D6 are respectively connected with the negative electrode of the power supply device; one end of a 30 terminal of the accessory motor forward relay is connected with the positive pole of the power supply device, the other end of the 30 terminal is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor forward relay according to a control command;
the anode of the diode D14, one end of the resistor R7, the cathode of the diode D7 and the 85 end of the accessory motor reversal relay are all connected with the right handle right button; the other end of the resistor R7 is connected with the anode of the light-emitting diode LED7, and the cathode of the light-emitting diode LED7, the anode of the diode D7 and the 86 end of the accessory motor reversal relay are all connected with the cathode of the power supply device; one end of the resistor R8, the cathode of the diode D8 and the control end of the accessory motor reverse rotation are connected with the 87 end of the accessory motor reverse rotation relay, the other end of the resistor R8 is connected with the anode of the light-emitting diode LED8, and the cathode of the light-emitting diode LED8 and the anode of the diode D8 are respectively connected with the cathode of the power supply device; one end of a 30 terminal of the accessory motor reversal relay is connected with the positive pole of the power supply device, the other end of the 30 terminal is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor reversal relay according to a control command;
the pilot electromagnetic valve comprises a pilot electromagnetic valve relay, the cathode of the diode D11, the cathode of the diode D12, the cathode of the diode D13 and the cathode of the diode D14 are connected with the 85 end of the pilot electromagnetic valve relay, and one end of the resistor R9 and the cathode of the diode D9 are connected with the 85 end of the pilot electromagnetic valve relay; the other end of the resistor R9 is connected with the anode of the light-emitting diode LED9, and the cathode of the light-emitting diode LED9 and the anode of the diode D9 are respectively connected with the cathode of the power supply device; one end of a resistor R19 and the cathode of a diode D15 are respectively connected with the anode of the power supply device, the other end of a resistor R19 is connected with the anode of a light-emitting diode LED11, and the cathode of the light-emitting diode LED11, the anode of a diode D15 and the 86 end of a pilot electromagnetic valve relay are respectively connected with the cathode of the power supply device; one end of the resistor R10, the cathode of the diode D10 and the control end of the pilot solenoid valve are connected with the 87 end of the pilot solenoid valve relay; the other end of the resistor R10 is connected to the anode of the light emitting diode LED10, and the cathode of the light emitting diode LED10 and the anode of the diode D10 are connected to the cathode of the power supply device, respectively.
The use and working process of the embodiment are as follows:
the control handle, the accessory control device, the accessory control relay and the pilot electromagnetic valve are arranged on a control console of the excavator and are connected through cables, the accessory control relay is connected with the accessory hydraulic motor and the accessory hydraulic oil cylinder, and the pilot electromagnetic valve is connected with a spare valve of the excavator and is communicated with an oil inlet pipe and an oil return pipe of the excavator; the accessory multi-path electromagnetic valve set is arranged on an accessory, one end of the accessory multi-path electromagnetic valve set is connected with an oil inlet pipe and an oil return pipe of the excavator, and the other end of the accessory multi-path electromagnetic valve set is communicated with an accessory hydraulic motor and an accessory hydraulic oil cylinder;
when the control device works, the control handle outputs a control instruction, and the control instruction reaches the corresponding accessory control relay through the accessory control device to control the accessory to execute corresponding operation; meanwhile, the control instruction reaches the pilot electromagnetic valve, and the pilot electromagnetic valve is controlled to open the corresponding oil way, so that the accessory completes corresponding operation under the coordination of hydraulic oil.
Claims (4)
1. An excavator accessory control system is characterized by comprising a power supply device, a control handle, an accessory control device, an accessory multi-way electromagnetic valve group, a pilot electromagnetic valve, an excavator standby valve, an accessory control relay, an accessory motor, an accessory oil cylinder, an oil inlet pipe and an oil return pipe;
the control handle, the accessory multi-path electromagnetic valve group, the pilot electromagnetic valve and the accessory control relay are all electrically connected with the power supply device and are powered by the power supply device;
the control handle is connected with the accessory control device and used for sending an operation instruction to the accessory control device;
the accessory control device is electrically connected with the accessory control relay and the pilot electromagnetic valve, and the accessory control relay is electrically connected with the accessory motor and the accessory oil cylinder;
the control handle input is provided with a plurality of control keys; based on key control, the control handle sends a corresponding instruction to the accessory control device, and the accessory control device transmits the instruction to the accessory control relay so as to control the accessory motor to rotate forwards or backwards and control the accessory oil cylinder to extend or retract;
one end of the pilot electromagnetic valve is connected with an oil inlet end of a pilot oil source of the excavator, and the other end of the pilot electromagnetic valve is communicated with a spare valve of the excavator; based on key control, the control handle sends an opening or closing instruction to control the connection or disconnection of a pilot oil source of the excavator and an excavator standby valve;
the spare valve of the excavator is respectively communicated with the oil inlet pipe, the oil return pipe and the oil return end of a pilot oil source of the excavator, the spare valve of the excavator is communicated with an oil way of the accessory multi-way electromagnetic valve group through the oil inlet pipe and the oil return pipe, the multi-way electromagnetic valve group comprises a plurality of groups of electromagnetic valve switches, the accessory motor and the accessory oil cylinder are respectively connected with one group of electromagnetic valve switches of the multi-way electromagnetic valve group, and oil outlets and oil inlets of the accessory motor and the accessory oil cylinder are respectively communicated with oil inlets and oil outlets on the corresponding electromagnetic valve switches.
2. The excavator accessory control system of claim 1, wherein:
the control handle comprises a left handle and a right handle, the left handle and the right handle respectively comprise two keys, namely a left handle key, a right handle key, a left handle key and a right handle key, and the left handle key, the right handle key, the left handle key, the right handle key and the right handle key are electrically connected with the pilot electromagnetic valve through an accessory control device;
the accessory control device comprises an accessory motor forward rotation relay, an accessory oil cylinder extending relay and an accessory oil cylinder retracting relay;
the left handle button and the right handle button are respectively and electrically connected with the accessory motor forward relay and the accessory motor forward relay;
the right handle left button and the right handle right button are respectively and electrically connected with the accessory oil cylinder extending relay and the accessory oil cylinder retracting relay.
3. The excavator accessory control system of claim 2, wherein:
the circuit structure of the accessory control device comprises diodes D1-D15, light emitting diodes LED1-LED11 and resistors R1-R19;
the anode of the diode D11, one end of the resistor R1, the cathode of the diode D1 and the 85 end of the accessory oil cylinder extending out of the relay are respectively connected with the left handle button; the other end of the resistor R1 is connected with the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1, the anode of the diode D1 and the 86 end of the accessory oil cylinder extending out of the relay are respectively connected with the cathode of the power supply device; one end of the resistor R2, the cathode of the diode D2 and the 87 end of the accessory oil cylinder extending relay are respectively connected with the accessory oil cylinder extending control output end; the other end of the resistor R2 is connected with the anode of the light-emitting diode LED2, and the cathode of the light-emitting diode LED2 and the anode of the diode D2 are respectively connected with the cathode of the power supply device; one end of the accessory oil cylinder, which extends out of a 30 terminal of the relay, is connected with the anode of the power supply device, the other end of the accessory oil cylinder is connected with a change-over switch N, and the change-over switch N is respectively communicated with an 87 end or an 87A end of the accessory oil cylinder, which extends out of the relay, according to a control instruction;
the anode of the diode D12, one end of the resistor R3, the cathode of the diode D3 and the 85 end of the accessory oil cylinder retraction relay are respectively connected with the right button of the left handle; the other end of the resistor R3 is connected with the anode of the light-emitting diode LED3, and the cathode of the light-emitting diode LED3, the anode of the diode D3 and the 86 end of the accessory oil cylinder retraction relay are respectively connected with the cathode of the power supply device; one end of the resistor R4, the negative electrode of the diode D4 and the retraction control end of the accessory oil cylinder are respectively connected with the 87 end of the accessory oil cylinder retraction relay; the other end of the resistor R4 is connected with the anode of the light-emitting diode LED4, and the cathode of the light-emitting diode LED4 and the anode of the diode D4 are respectively connected with the cathode of the power supply device; one end of a 30 terminal of the accessory oil cylinder retraction relay is connected with the anode of the power supply device, the other end of the 30 terminal of the accessory oil cylinder retraction relay is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory oil cylinder retraction relay according to a control instruction;
the anode of the diode D13, one end of the resistor R5, the cathode of the diode D5 and the 85 end of the accessory motor forward rotation relay are respectively connected with the left button of the right handle; the other end of the resistor R5 is connected with the anode of the light-emitting diode LED5, and the cathode of the light-emitting diode LED5, the anode of the diode D5 and the 86 end of the accessory motor forward relay are all connected with the cathode of the power supply device; one end of the resistor R6, the negative electrode of the diode D6 and the control end of forward rotation of the accessory motor are connected with the 87 end of the accessory motor forward rotation relay, the other end of the resistor R6 is connected with the positive electrode of the light-emitting diode LED6, and the negative electrode of the light-emitting diode LED6 and the positive electrode of the diode D6 are respectively connected with the negative electrode of the power supply device; one end of a 30 terminal of the accessory motor forward relay is connected with the positive pole of the power supply device, the other end of the 30 terminal is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor forward relay according to a control command;
the anode of the diode D14, one end of the resistor R7, the cathode of the diode D7 and the 85 end of the accessory motor reversal relay are all connected with the right handle right button; the other end of the resistor R7 is connected with the anode of the light-emitting diode LED7, and the cathode of the light-emitting diode LED7, the anode of the diode D7 and the 86 end of the accessory motor reversal relay are all connected with the cathode of the power supply device; one end of the resistor R8, the cathode of the diode D8 and the control end of the accessory motor reverse rotation are connected with the 87 end of the accessory motor reverse rotation relay, the other end of the resistor R8 is connected with the anode of the light-emitting diode LED8, and the cathode of the light-emitting diode LED8 and the anode of the diode D8 are respectively connected with the cathode of the power supply device; one end of the 30 terminal of the accessory motor reversal relay is connected with the positive pole of the power supply device, the other end is connected with a change-over switch N, and the change-over switch N is respectively communicated with the 87 end or the 87A end of the accessory motor reversal relay according to a control command.
4. The excavator accessory control system of claim 3, wherein:
the pilot electromagnetic valve comprises a pilot electromagnetic valve relay, the cathode of the diode D11, the cathode of the diode D12, the cathode of the diode D13 and the cathode of the diode D14 are connected with the 85 end of the pilot electromagnetic valve relay, and one end of the resistor R9 and the cathode of the diode D9 are connected with the 85 end of the pilot electromagnetic valve relay; the other end of the resistor R9 is connected with the anode of the light-emitting diode LED9, and the cathode of the light-emitting diode LED9 and the anode of the diode D9 are respectively connected with the cathode of the power supply device; one end of a resistor R19 and the cathode of a diode D15 are respectively connected with the anode of the power supply device, the other end of a resistor R19 is connected with the anode of a light-emitting diode LED11, and the cathode of the light-emitting diode LED11, the anode of a diode D15 and the 86 end of a pilot electromagnetic valve relay are respectively connected with the cathode of the power supply device; one end of the resistor R10, the cathode of the diode D10 and the control end of the pilot solenoid valve are connected with the 87 end of the pilot solenoid valve relay; the other end of the resistor R10 is connected to the anode of the light emitting diode LED10, and the cathode of the light emitting diode LED10 and the anode of the diode D10 are connected to the cathode of the power supply device, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549586.5U CN209925350U (en) | 2019-04-22 | 2019-04-22 | Excavator accessory control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549586.5U CN209925350U (en) | 2019-04-22 | 2019-04-22 | Excavator accessory control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2760113C1 (en) * | 2021-04-13 | 2021-11-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Сибирский государственный автомобильно-дорожный университет (СибАДИ)» | Hydraulic system of excavator milling working equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2760113C1 (en) * | 2021-04-13 | 2021-11-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Сибирский государственный автомобильно-дорожный университет (СибАДИ)» | Hydraulic system of excavator milling working equipment |
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