CN-121989688-A - New forms of energy drags electric excavator and supply vehicle safety coefficient

CN121989688ACN 121989688 ACN121989688 ACN 121989688ACN-121989688-A

Abstract

The invention relates to the technical field of engineering machinery, and provides a new energy towed excavator and a power supply vehicle safety system, wherein the new energy towed excavator comprises a towed excavator, a power supply device and a high-voltage cable, and the towed excavator comprises an excavator controller and a first wireless transceiver device; the power supply device comprises a power supply controller and a second wireless transceiver, the power supply controller is electrically connected with the second wireless transceiver, wireless communication is established between the second wireless transceiver and the first wireless transceiver, the high-voltage cable comprises a power cable and a connection confirmation signal wire, the power cable is used for power transmission between the power supply device and the towed excavator, and the connection confirmation signal wire is used for transmitting a specific check signal between the towed excavator and the power supply device. The connection accuracy between the drag excavator and the power supply device is improved, and the reliability, the operation convenience and the safety of the artificial factor interference lifting system are reduced.

Inventors

LIU JIONG
DUAN MENG
WANG GAOLONG
FAN ZHENGRONG

Assignees

山河智能装备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20251216

Claims (9)

1. New forms of energy drags electric excavator and supply vehicle safety system, its characterized in that includes: The towed excavator comprises an excavator controller and a first wireless transceiver, wherein the excavator controller is electrically connected with the first wireless transceiver; the power supply device comprises a power supply controller and a second wireless transceiver device, the power supply controller is electrically connected with the second wireless transceiver device, and wireless communication is established between the second wireless transceiver device and the first wireless transceiver device; The high-voltage cable is connected between the towed excavator and the power supply device, the high-voltage cable comprises a power cable and a connection confirmation signal wire, the power cable is used for power transmission between the power supply device and the towed excavator, and the connection confirmation signal wire is used for transmitting a specific check signal between the towed excavator and the power supply device.
2. The new energy drag type excavator and power supply vehicle safety system according to claim 1, wherein the new energy drag type excavator and power supply vehicle safety system has a connection check phase, in which the excavator controller transmits a signal containing a drag type excavator number and a selected power supply device output port number to the power supply controller through the first wireless transceiver; and the power supply controller transmits the received serial number and port number of the towed excavator back to the excavator controller through the connection confirmation signal line by a specific check signal. And the excavator controller compares whether the signals received by wireless and the signals received by wired are consistent, and if so, the wireless connection object and the physical cable connection object are considered to correspond.
3. The new energy drag type excavator and power supply vehicle safety system of claim 2 further comprising a work protection phase in which the excavator controller transmits periodic pulse signals to the power supply controller via the connection confirmation signal line; When the wireless receiving and transmitting device is interfered or fails, the power supply controller can judge whether to continue power supply according to the normal or not of the pulse signal, if the pulse signal is normal, the power supply is continued, and if the interruption time of the pulse signal exceeds the preset time, the power supply device stops power supply.
4. The new energy drag type excavator and power supply vehicle safety system according to claim 1, wherein the new energy drag type excavator and power supply vehicle safety system comprises a signal connection stage, a connection checking stage and a work protection stage, and the drag type excavator further comprises a three-color buzzer warning lamp which is used for displaying the current state at different stages and warning surrounding operators; In the signal connection stage, the three-color buzzer warning lamp lights a green signal lamp after the wireless connection is successful; In the connection checking stage, after the connection is confirmed to be correct, the three-color buzzing warning lamp lights up a yellow signal lamp and sends out a buzzing warning signal; and in the working protection stage, after entering a working state, a red signal lamp is lightened, and a buzzing warning signal is sent out.
5. The new energy drag type excavator and the power supply vehicle safety system according to claim 2, wherein the first wireless transceiver device can search and display all available power supply device lists nearby, an operator can select a power supply device to be connected according to actual conditions, and when the drag type excavator is connected with the selected power supply device through wireless signals, the connection checking stage is carried out.
6. The new energy drag type excavator and power supply vehicle safety system according to claim 1, further comprising a cable opposite plug-in unit, wherein the cable opposite plug-in units are respectively fixed at two opposite ends of the high-voltage cable, and the cable opposite plug-in unit can be in adaptive butt joint with the drag type excavator and the high-voltage interface of the power supply device.
7. The new energy drag type excavator and power supply vehicle safety system according to claim 1, wherein the drag type excavator further comprises a high voltage interlocking signal line, the high voltage interlocking signal line is connected between the cable opposite plug-in unit and the excavator controller, and the excavator controller confirms connection information of the cable opposite plug-in unit through interlocking signals fed back by the high voltage interlocking signal line.
8. The new energy drag type excavator and power supply vehicle safety system according to claim 1, wherein the drag type excavator further comprises a man-machine interaction device, the man-machine interaction device is electrically connected with the excavator controller, and the man-machine interaction device is used for receiving instruction input of an operator and state information fed back by the display system.
9. The new energy drag type excavator and power supply vehicle safety system according to claim 1, wherein the power supply device comprises any one of a mobile power supply vehicle and a battery energy storage station cable winding and unwinding vehicle.

Description

New forms of energy drags electric excavator and supply vehicle safety coefficient Technical Field The invention relates to the technical field of engineering machinery, in particular to a new energy towed excavator and a power supply vehicle safety system. Background In construction scenes such as large-scale engineering construction, mining and the like, a large-scale drag excavator becomes indispensable construction equipment by virtue of strong excavating capacity and efficient working performance. In order to meet the environmental protection requirement, reduce the construction cost and adapt to the specific construction environment, the towed excavator is gradually widely applied in a mode of adopting an energy storage vehicle to supply power. The energy storage vehicle can provide stable and continuous electric power support for the towed excavator, and long-time uninterrupted operation of the towed excavator is guaranteed. Currently, large-scale drag-type excavators mainly perform one-to-one or one-to-many power supply modes through energy storage vehicles. In the power supply system, the energy storage vehicle and the drag excavator rely on a long high-voltage cable to realize power transmission. However, there are a number of issues to be addressed in the communication and management of this power supply. Because the high-voltage cable connected between the two is longer, bus communication wires such as a CAN bus and the like cannot be integrated, the cable is required to be reduced in diameter as much as possible for convenience in construction, a plurality of signal wires cannot be integrated, and the cable is easy to damage when dragging the signal wires on the ground. The existing energy storage vehicle and the towed excavator cannot effectively communicate, the butt joint accuracy of the towing rope and the towed excavator can only be confirmed manually, and the power supply vehicle can only confirm the power on and power off time manually after the artificial confirmation of the butt joint of the towing rope of the energy storage vehicle and the corresponding towed excavator is completed. The method has low fault tolerance rate, such as machine damage and casualties caused by personnel misoperation, especially in one-to-many construction scenes. Meanwhile, a plurality of operators are simultaneously constructed in a construction site, so that potential safety hazards of site management and rising of construction cost are brought. Disclosure of Invention The invention provides a new energy towed excavator and a power supply vehicle safety system, which are used for solving the defect that communication between equipment is lost due to the limitation of a high-voltage cable structure between a large towed excavator and an energy storage vehicle to bring potential safety hazards in the prior art, improving the connection accuracy between the towed excavator and a power supply device, reducing the interference of artificial factors and improving the reliability, the operation convenience and the safety of the system. The invention provides a new energy drag type excavator and a power supply vehicle safety system, comprising: The towed excavator comprises an excavator controller and a first wireless transceiver, wherein the excavator controller is electrically connected with the first wireless transceiver; the power supply device comprises a power supply controller and a second wireless transceiver device, the power supply controller is electrically connected with the second wireless transceiver device, and wireless communication is established between the second wireless transceiver device and the first wireless transceiver device; The high-voltage cable is connected between the towed excavator and the power supply device, the high-voltage cable comprises a power cable and a connection confirmation signal wire, the power cable is used for power transmission between the power supply device and the towed excavator, and the connection confirmation signal wire is used for transmitting a specific check signal between the towed excavator and the power supply device. According to the new energy towed excavator and the power supply vehicle safety system provided by the invention, the new energy towed excavator and the power supply vehicle safety system are provided with a connection checking stage, and in the connection checking stage, the excavator controller sends a signal containing the number of the towed excavator and the number of the selected output port of the power supply device to the power supply controller through the first wireless transceiver; and the power supply controller transmits the received serial number and port number of the towed excavator back to the excavator controller through the connection confirmation signal line by a specific check signal. And the excavator controller compares whether the signals received by wireless and the signals received by wired are consistent, and i