Excavator winding control system and excavator

Abstract

The utility model relates to an excavator coiling control system and an excavator, and belongs to the technical field of excavator oil-to-electricity conversion, and the excavator coiling control system comprises a control panel which is in communication connection with a power supply device and is used for generating a motor driving signal after responding to a first operation instruction and transmitting the motor driving signal to the power supply device, the motor driving signal is used for indicating the power supply device to generate corresponding driving alternating current; the winding motor is electrically connected with the power supply device, and the cable drum is coaxially and fixedly connected with a motor shaft of the winding motor through a rotating shaft; the coiling motor is used for driving the cable drum to rotate according to the driving alternating current. According to the utility model, the technical purpose of saving the investment cost by controlling the take-up and pay-off operation without the help of external equipment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator oil changes electricity technical field especially, relates to a kind of excavator winding control system and excavator. BACKGROUND

[0002] In prior art in large excavator oil changes electricity, generally choose to place rectifier system on excavator body, and directly use external three-phase power supply, and the motor power supply source used by winding drum winding is external supply three-phase alternating current, so it needs to be controlled winding operation by external remote controller.

[0003] Since driver cannot directly control winding drum winding by excavator internal circuit, original scheme needs to additionally increase motor controller with wireless communication function, and investment cost can be higher.And if directly using three-phase alternating current cable, since three-phase alternating current cable is thicker, winding drum is larger, and cost is also higher, and placing rectifier system on excavator body is not suitable for complex and poor working condition, and also increase subsequent maintenance cost. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a kind of excavator winding control system and excavator, to save investment cost on the basis of controlling winding operation without the aid of external equipment.

[0005] In order to achieve the above technical purpose, the utility model provides a kind of excavator winding control system, the excavator includes power supply device, and the system includes:

[0006] Control panel, with power supply device communication connection, for generating motor drive signal and transmission to the power supply device after response first operation instruction, and the motor drive signal is used to indicate that the power supply device generates corresponding drive alternating current;

[0007] Cable drum and winding motor, winding motor is electrically connected with power supply device, and cable drum is coaxially fixedly connected with motor shaft of winding motor by rotating shaft;

[0008] Winding motor is used to drive cable drum rotation according to the drive alternating current.

[0009] In some embodiments of the utility model, the power supply device includes:

[0010] Rectifier cabinet, with external alternating current power supply electric connection, for receiving alternating current input by external alternating current power supply and rectifying as direct current and then output;

[0011] Multi-combination power supply module, with the rectifier cabinet and winding motor electric connection, for receiving direct current input by rectifier cabinet and then inverting as drive alternating current and then output to winding motor.

[0012] In some embodiments of the utility model, the rectifier cabinet comprises:

[0013] The rectifier is electrically connected with the all-in-one power supply module and is electrically connected with the external AC power supply through the relay, and is used for converting the AC power input by the external AC power supply into DC power and then outputting the DC power to the all-in-one power supply module;

[0014] The safety protection module is electrically connected with the relay, is used for measuring the voltage and current of the AC power, and generates a first control signal and transmits the first control signal to the relay when the voltage and / or current is greater than a preset threshold, and the first control signal is used for instructing the relay to open;

[0015] The communication control module is electrically connected with the relay, is used for generating a first control signal and sending the first control signal to the relay in response to a second operation instruction, or generating a second control signal and transmitting the second control signal to the relay, and the second control signal is used for instructing the relay to close.

[0016] In some embodiments of the utility model, the all-in-one power supply module comprises:

[0017] The high-voltage power distribution PDU is electrically connected with the rectifier cabinet, is used for receiving and outputting the DC power input by the rectifier cabinet;

[0018] The auxiliary drive MCU is electrically connected with the high-voltage power distribution PDU and the winding motor, is used for inverting the DC power input by the high-voltage power distribution PDU into driving AC power and then outputting the driving AC power to the winding motor;

[0019] The control unit is communicatively connected with the control panel and the auxiliary drive MCU, is used for transmitting a motor drive signal to the auxiliary drive MCU, and the auxiliary drive MCU generates driving AC power of a corresponding frequency and phase sequence in response to the motor drive signal.

[0020] In some embodiments of the utility model, the all-in-one power supply module further comprises:

[0021] The pre-charging unit is electrically connected with the high-voltage power distribution PDU and the rectifier cabinet, is used for pre-charging after receiving the DC power input by the rectifier cabinet, preventing overcurrent during power-on and stabilizing the voltage and current of the DC power;

[0022] The DC / DC unit is electrically connected with the high-voltage power distribution PDU, is used for reducing the DC power to 24V DC power to supply power to the 24V electrical equipment of the excavator;

[0023] The main drive MCU is electrically connected with the high-voltage power distribution PDU and the working motor of the excavator, is used for inverting the DC power into three-phase AC power and then outputting the three-phase AC power to the working motor.

[0024] In some embodiments of the utility model, the control panel comprises a key and a wireless communication unit.

[0025] The key is in communication connection with the power supply device through a wireless communication unit, and the key is used to generate a motor driving signal after being pressed and transmit the motor driving signal to the power supply device.

[0026] In some embodiments of the utility model, the control panel further comprises:

[0027] The power management unit is electrically connected with the DC / DC unit and is used for receiving the 24V direct current to supply power to the 24V electrical equipment of the excavator;

[0028] The display is in communication connection with the safety protection module through a wireless communication unit and a communication control module in sequence, is used for receiving and displaying the voltage and current transmitted by the safety protection module, and generates a second operation instruction and transmits the second operation instruction to the communication control module;

[0029] The display is in communication connection with the auxiliary drive MCU through a wireless communication unit and a control unit in sequence;

[0030] The auxiliary drive MCU is further used for measuring the rotating speed and rotating direction of the winding motor and transmitting the rotating speed and rotating direction to the display;

[0031] The display is further used for receiving and displaying the rotating speed and rotating direction, and generating a first operation instruction and transmitting the first operation instruction to the auxiliary drive MCU.

[0032] In the second aspect, the utility model further provides a kind of excavator, comprising:

[0033] The excavator winding control system of any one of the above systems is arranged in the body;

[0034] Wherein, the cable reel and winding motor are arranged at the tail of the body, the power supply device is arranged at the top of the body, and the control panel is arranged in the cab of the body.

[0035] In some embodiments of the utility model, the body further comprises a central electro-hydraulic slip ring, a traveling device and a hydraulic oil circuit;

[0036] The central electro-hydraulic slip ring comprises an electrical slip ring and a hydraulic oil circuit slip ring;

[0037] The electrical slip ring comprises a forward direct current ring and a reverse alternating current ring, wherein the forward direct current ring is electrically connected with a rectifier cabinet and a multi-in-one power supply module, for transmitting the direct current output by the rectifier cabinet to the multi-in-one power supply module, and the reverse alternating current ring is electrically connected with the reel motor and the auxiliary drive MCU, for transmitting the first three-phase alternating current output by the auxiliary drive MCU to the reel motor;

[0038] The hydraulic slip ring is mechanically connected to the hydraulic circuit and the traveling device, and is used to connect the hydraulic circuit to the traveling device.

[0039] In some embodiments of this utility model, the housing further includes a battery, which is electrically connected to the DC / DC unit and the power management unit, for storing the 24V DC power input by the DC / DC unit and / or outputting 24V DC power to the power management unit.

[0040] The beneficial effects of this utility model are as follows: This utility model provides an excavator cable reel control system. The cable reel motor, which drives the drum to reel in and out of the cable, is directly powered by the excavator's power supply device. Furthermore, this utility model only requires a control panel that matches the excavator's power supply device to control the working status of the cable reel motor. Therefore, it is not necessary to connect an external three-phase AC power supply device to power the cable reel motor, nor is it necessary to add an additional controller to control the cable reel in and out. This achieves the technical objective of saving investment costs by controlling the cable reel in and out without the need for external equipment. Attached Figure Description

[0041] Figure 1 A schematic diagram of an embodiment of the excavator cable reel control system provided by this utility model;

[0042] Figure 2 for Figure 1 A schematic diagram of the structure of an embodiment of the power supply device;

[0043] Figure 3 for Figure 1 A schematic diagram of the structure of an embodiment of the control panel. Detailed Implementation

[0044] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] In addition, the description involving "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0048] In this paper, "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. The skilled in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0049] As Figure 1 The present application is applied to excavator, specifically, used with the power supply device of excavator, wherein the power supply device 10 of excavator includes:

[0050] The rectifier cabinet 110 is electrically connected with the external AC power supply, used for receiving the AC power input by the external AC power supply and outputting the DC power after rectification;

[0051] The all-in-one power supply module 120 is electrically connected with the rectifier cabinet 110 and the winding motor 230, used for receiving the DC power input by the rectifier cabinet 110 and outputting the driving AC power after inversion.

[0052] In some embodiments of the present application, the rectifier cabinet 110 includes:

[0053] The rectifier 1101 is electrically connected with the all-in-one power supply module 120 and electrically connected with the external AC power supply through the relay 1102, used for converting the AC power input by the external AC power supply into DC power and outputting the DC power to the all-in-one power supply module 120.

[0054] In order to ensure the safe operation of the rectifier cabinet and avoid safety hazards, the rectifier cabinet 110 further includes:

[0055] The safety protection module 1103 is electrically connected with the relay 1102, used for measuring the voltage and current passing through the relay 1102, generating a first control signal and transmitting it to the relay when the voltage and / or current is greater than the preset threshold, and the first control signal is used to instruct the relay 1102 to disconnect;

[0056] The communication control module 1104 is electrically connected with the relay 1102, and is configured to generate and send a first control signal to the relay 1102 in response to a second operation instruction, or generate and send a second control signal to the relay 1102, where the second control signal is used to instruct the relay to close.

[0057] It should be noted that in the embodiment, the first control signal can be automatically generated by the safety protection module, or can be automatically generated by the communication control module under the control of the second operation instruction of the driver, and the second control signal can only be automatically generated.

[0058] In some embodiments of the utility model, the all-in-one power supply module 120 comprises:

[0059] The high-voltage power distribution PDU 1201 is electrically connected with the rectifier cabinet 110, and is configured to receive and output the direct current input by the rectifier cabinet 110.

[0060] It should be noted that in the embodiment, the all-in-one power supply module is not only used for supplying power to the excavator winding control system 20, but also used for distributing power to various devices of the excavator.

[0061] Specifically, taking the high-voltage power distribution PDU as an example, in another specific embodiment, the high-voltage power distribution PDU is also electrically connected with the air conditioner compressor of the excavator, and is configured to supply power to the air conditioner compressor.

[0062] The auxiliary drive MCU 1202 is electrically connected with the high-voltage power distribution PDU 1201 and the winding motor 230, and is configured to invert the direct current input by the high-voltage power distribution PDU 1201 into driving alternating current and then output to the winding motor 230;

[0063] The control unit 1203 is in communication connection with the control panel 210 and the auxiliary drive MCU 1202, and is configured to transmit a motor driving signal to the auxiliary drive MCU 1202, and the auxiliary drive MCU 1202 generates driving alternating current of corresponding frequency and phase sequence in response to the motor driving signal.

[0064] In some embodiments of the utility model, the all-in-one power supply module 120 further comprises:

[0065] The pre-charging unit 1204 is electrically connected with the high-voltage power distribution PDU 1201 and the rectifier cabinet 110, and is configured to pre-charge after receiving the direct current input by the rectifier cabinet 110, so as to prevent overcurrent at the moment of power-on and stabilize the voltage and current of the direct current;

[0066] The DC / DC unit 1205 is electrically connected with the high-voltage power distribution PDU 1201, and is configured to step down the direct current to 24V direct current to supply power to the 24V electrical equipment of the excavator;

[0067] The main drive MCU 1206 is electrically connected with the high-voltage power distribution PDU 1201 and the working motor of the excavator, and is used for inverting the direct current into three-phase alternating current and then outputting to the working motor.

[0068] As Figure 2 In one embodiment of the utility model, an excavator winding control system 20 is disclosed, and the system 20 comprises:

[0069] The control panel 210 is in communication connection with the power supply device 10, and is used for generating a motor drive signal and transmitting to the power supply device 10 after responding to the first operation instruction, and the motor drive signal is used for instructing the power supply device 10 to generate a corresponding drive alternating current.

[0070] Specifically, the first operation instruction can be a touch operation from the driver, or a voice operation.

[0071] As Figure 3 In some embodiments of the utility model, the control panel 210 comprises a key 2101 and a wireless communication unit 2102.

[0072] The key 2101 is in communication connection with the power supply device 10 through the wireless communication unit 2102, and the key 2101 is used for generating a motor drive signal and transmitting to the power supply device 10 after being pressed.

[0073] The power management unit 2103 is electrically connected with the DC / DC unit 1205, and is used for supplying power to the 24V electrical equipment of the excavator after receiving the 24V direct current.

[0074] In order to facilitate the driver to remotely start the excavator winding control system 20 when driving the excavator, the utility model further provides the following structure:

[0075] The display 2104 is in communication connection with the safety protection module 1103 through the wireless communication unit 2102 and the communication control module 1104 in sequence, and is used for receiving and displaying the voltage and current transmitted by the safety protection module 1103, and generating a second operation instruction and transmitting to the communication control module 1104.

[0076] Based on the above structure, in order to further facilitate the operation of the driver, the utility model further sets another structure for controlling the winding winding:

[0077] The winding motor 230 is in communication connection with the display 2104 through the auxiliary drive MCU 1202, the control unit 1203 and the wireless communication unit 2102 in sequence, and is used for measuring the current speed and steering and transmitting to the display 2104.

[0078] And is used for receiving and displaying the speed and steering information, and generating a motor drive signal and transmitting to the power supply device 10.

[0079] It can be understood that, in the embodiment, the first operation instruction is a touch operation of the driver interacting with the key or the display screen, and the second operation instruction is a touch operation of the driver interacting with the display screen, and the driver can remotely realize starting and stopping of the rectifier cabinet and control of the frequency and phase sequence of the driving alternating current output by the power supply device through the control panel.

[0080] The excavator winding control system 20 further comprises:

[0081] The cable drum 220 and the winding motor 230, the winding motor 230 being electrically connected with the power supply device 10, the cable drum 220 being fixedly connected with the motor shaft of the winding motor 230 through the rotating shaft;

[0082] The winding motor 230 is used for driving the cable drum 220 to rotate according to the driving alternating current.

[0083] It should be noted that the rotating speed of the winding motor 130 is proportional to the frequency of the driving alternating current, and the rotating direction of the winding motor 130 is related to the phase sequence of the driving alternating current, and the driver can freely control the winding motor to perform the winding or unwinding action and adjust the winding or unwinding speed by controlling the frequency and phase sequence of the driving alternating current.

[0084] Compared with the prior art, the excavator winding control system provided by the utility model is powered by the power supply device of the excavator, and further, only one control panel matched with the power supply device of the excavator is needed to control the working state of the winding motor, so that the winding motor can be powered without connecting external three-phase alternating current equipment, and an additional controller is not needed to control the winding or unwinding of the cable, thereby achieving the technical purpose of saving the investment cost by controlling the winding or unwinding operation without the aid of external equipment.

[0085] In a second aspect, the utility model also provides an excavator, which comprises:

[0086] The excavator winding control system described in any one of the above systems;

[0087] The cable drum and the winding motor are arranged at the tail of the machine body, the power supply device is arranged at the top of the machine body, and the control panel is arranged in the cab of the machine body.

[0088] In some embodiments of the utility model, the machine body further comprises a central electro-hydraulic slip ring, a traveling device and a hydraulic oil circuit.

[0089] The central electro-hydraulic slip ring comprises an electric circuit slip ring and a hydraulic oil circuit slip ring.

[0090] The electric slip ring comprises a forward direct current ring and a reverse alternating current ring, wherein the forward direct current ring is electrically connected with the rectifier cabinet and the all-in-one power supply module, and is used for conveying direct current output by the rectifier cabinet to the all-in-one power supply module; the reverse alternating current ring is electrically connected with the drum motor and the auxiliary drive MCU, and is used for transmitting first three-phase alternating current output by the auxiliary drive MCU to the drum motor.

[0091] The hydraulic oil circuit slip ring is mechanically connected with the hydraulic oil circuit and the traveling device, and is used for connecting the hydraulic oil circuit to the traveling device.

[0092] In some embodiments of the utility model, the body interior further includes: a storage battery, which is electrically connected with the DC / DC unit and the power management unit, and is used for storing 24V direct current input by the DC / DC unit and / or outputting 24V direct current to the power management unit.

[0093] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A winding control system for a excavator comprising a power supply, characterized by, The system comprises: A control panel, in communication with the power supply device, for generating a motor drive signal and transmitting the motor drive signal to the power supply device in response to a first operation instruction, the motor drive signal being used to instruct the power supply device to generate a corresponding drive alternating current; A cable drum and a winding motor, the winding motor being electrically connected to the power supply device, and the cable drum being coaxially fixedly connected to the motor shaft of the winding motor through a rotating shaft; The winding motor is used to drive the cable drum to rotate according to the drive alternating current.

2. The excavator winch control system of claim 1, wherein, The power supply device comprises: A rectifier cabinet, which is electrically connected to an external alternating current power supply, for receiving alternating current input by the external alternating current power supply and outputting direct current after rectification; A multi-in-one power supply module, which is electrically connected to the rectifier cabinet and the winding motor, for receiving direct current input by the rectifier cabinet and outputting drive alternating current after inversion to the winding motor.

3. The excavator winch control system of claim 2, wherein, The rectifier cabinet comprises: A rectifier, which is electrically connected to the multi-in-one power supply module and is electrically connected to the external alternating current power supply through a relay, for converting alternating current input by the external alternating current power supply into direct current and outputting the direct current to the multi-in-one power supply module; A safety protection module, which is electrically connected to the relay, for measuring the voltage and current of the alternating current, and generating a first control signal and transmitting the first control signal to the relay when the voltage and / or current is greater than a preset threshold, the first control signal being used to instruct the relay to open; A communication control module, which is electrically connected to the relay, for generating a first control signal and sending the first control signal to the relay in response to a second operation instruction, or generating a second control signal and transmitting the second control signal to the relay, the second control signal being used to instruct the relay to close.

4. The excavator winch control system of claim 2, wherein, The multi-in-one power supply module comprises: A high-voltage power distribution PDU, which is electrically connected to the rectifier cabinet, for receiving and outputting direct current input by the rectifier cabinet; An auxiliary drive MCU, which is electrically connected to the high-voltage power distribution PDU and the winding motor, for inverting direct current input by the high-voltage power distribution PDU into drive alternating current and outputting the drive alternating current to the winding motor; A control unit, which is in communication with the control panel and the auxiliary drive MCU, for transmitting the motor drive signal to the auxiliary drive MCU, the auxiliary drive MCU generating drive alternating current of a corresponding frequency and phase sequence in response to the motor drive signal.

5. The excavator winch control system of claim 4, wherein, The multi-in-one power supply module further comprises: A pre-charging unit, which is electrically connected to the high-voltage power distribution PDU and the rectifier cabinet, for pre-charging direct current input by the rectifier cabinet to prevent overcurrent at the moment of power-on and stabilize the voltage and current of the direct current; A DC / DC unit, which is electrically connected to the high-voltage power distribution PDU, for reducing the direct current to 24V direct current to supply 24V electrical equipment of the excavator; A main drive MCU, which is electrically connected to the high-voltage power distribution PDU and the working motor of the excavator, for inverting the direct current into three-phase alternating current and outputting the three-phase alternating current to the working motor.

6. The excavator winch control system of claim 1, wherein, The control panel comprises a key and a wireless communication unit; The key is in communication with the power supply device through the wireless communication unit, and the key is used to generate a motor drive signal and transmit the motor drive signal to the power supply device after being pressed.

7. The excavator winch control system of claim 3, 4 or 6, wherein, The control panel further comprises: A power management unit, which is electrically connected to the DC / DC unit, for receiving the 24V direct current and supplying 24V electrical equipment of the excavator; A display is in communication connection with the safety protection module through a wireless communication unit and a communication control module in sequence, for receiving and displaying the voltage and current transmitted by the safety protection module, and generating and transmitting a second operation instruction to the communication control module; The display is further in communication connection with the auxiliary drive MCU through the wireless communication unit and the control unit in sequence; The auxiliary drive MCU is further configured to measure the rotating speed and rotating direction of the winding motor and transmit them to the display; The display is further configured to receive and display the rotating speed and rotating direction, and generate and transmit a first operation instruction to the auxiliary drive MCU.

8. An excavator characterized by comprising: The excavator comprises: a machine body and the winding control system of the excavator according to any one of claims 1-7; wherein the cable drum and the winding motor are arranged at the tail of the machine body, the power supply device is arranged at the top of the machine body, and the control panel is arranged in the cab of the machine body.

9. The excavator of claim 8, wherein, The machine body further comprises a central electro-hydraulic slip ring, a traveling device and a hydraulic oil circuit inside; the central electro-hydraulic slip ring comprises an electric circuit slip ring and a hydraulic oil circuit slip ring; the electric circuit slip ring comprises a forward direct current ring and a reverse alternating current ring, wherein the forward direct current ring is electrically connected with the rectifier cabinet and the all-in-one power supply module, for transmitting the direct current output by the rectifier cabinet to the all-in-one power supply module, and the reverse alternating current ring is electrically connected with the winding motor and the auxiliary drive MCU, for transmitting the first three-phase alternating current output by the auxiliary drive MCU to the winding motor; the hydraulic oil circuit slip ring is mechanically connected with the hydraulic oil circuit and the traveling device, for connecting the hydraulic oil circuit to the traveling device.

10. The excavator of claim 8, wherein, The machine body further comprises a battery inside, which is electrically connected with the DC / DC unit and the power management unit, for storing the 24V direct current input by the DC / DC unit and / or outputting 24V direct current to the power management unit.

Images