Work machine control device and work machine

Abstract

The utility model relates to the field of working machinery, and discloses a working machinery control device and working machinery, and the working machinery control device comprises a controller which is provided with a first output port, a second output port and a third output port; the quick-change reversing valve is in communication connection with the third output port and can be switched to a first valve position or a second valve position according to an output signal of the third output port, and when the quick-change reversing valve is located at the first valve position, the working oil port of the accessory output valve is communicated with the oil inlet pipeline, and connection between the working oil port of the inclined quick-change output valve and the oil inlet pipeline is cut off; when the quick-change reversing valve is at the second valve position, the working oil port of the inclined quick-change output valve is communicated with the oil inlet pipeline, and the connection between the working oil port of the accessory output valve and the oil inlet pipeline is cut off; the first output port and the second output port can be used for outputting control signals to the accessory output valve or the tilt quick-change output valve. According to the operation machine control device and the operation machine, the working efficiency of excavation operation can be improved.

Description

Technical Field

[0001] This application belongs to the field of work machinery technology, specifically relating to a work machinery control device and work machinery. Background Technology

[0002] In the field of construction machinery operation, existing methods for changing working attachments are rather cumbersome. While the tilt-change function is powerful, it also requires more hydraulic lines for control. Current control methods cannot effectively integrate the tilt-change with various attachments, thus limiting the operation of construction machinery. Often, tools are needed for extended periods of operation, impacting work efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a control device and machinery for excavation operations, which can help improve the efficiency of excavation operations.

[0004] To achieve the above objectives, this application provides a machine operation control device, which includes:

[0005] The controller is equipped with a first output port, a second output port, and a third output port;

[0006] A quick-change directional valve is communicatively connected to the third output port and can switch to a first valve position or a second valve position according to the output signal of the third output port. When the quick-change directional valve is in the first valve position, it connects the working port of the attachment output valve to the oil inlet pipeline and disconnects the connection between the working port of the tilt quick-change output valve and the oil inlet pipeline. When the quick-change directional valve is in the second valve position, it connects the working port of the tilt quick-change output valve to the oil inlet pipeline and disconnects the connection between the working port of the attachment output valve and the oil inlet pipeline.

[0007] Specifically, when the quick-change directional valve switches to the first valve position, the first output port and the second output port are respectively used to output control signals to the attachment output valve; when the quick-change directional valve switches to the second valve position, the first output port and the second output port are respectively used to output control signals to the tilt quick-change output valve.

[0008] In some specific embodiments, when the quick-change directional valve switches to the first valve position, the first output port is used to output a left-hand control signal to the attachment output valve, and the second output port is used to output a right-hand control signal to the attachment output valve.

[0009] When the quick-change directional valve switches to the second valve position, the first output port is used to output a left tilt control signal to the tilt quick-change output valve, and the second output port is used to output a right tilt control signal to the tilt quick-change output valve.

[0010] In some specific embodiments, the machine control device further includes:

[0011] A human-machine interface is communicatively connected to the controller. The human-machine interface is used to display data and obtain user operation commands. The controller is used to control the quick-change directional valve to switch valve positions through the third output port according to the operation commands.

[0012] In some specific embodiments, the machine control device further includes:

[0013] An operating handle is communicatively connected to the controller, which outputs corresponding control signals through the first output port or the second output port according to the action of the operating handle.

[0014] In some specific embodiments, the machine control device further includes:

[0015] A quick-change switch is communicatively connected to the controller and is used to control the opening and closing of the quick-change connector.

[0016] In some specific embodiments, the machine control device further includes a quick-change solenoid valve, and the controller is also provided with a fourth output port, which is used for communication connection with the quick-change solenoid valve.

[0017] In some specific embodiments, the control device for the operating machinery also includes a key switch for powering on.

[0018] In some specific embodiments, the machine control device further includes a pilot switch, and the controller is further provided with a first input port, which is used to communicate with the pilot switch and obtain the action signal of the pilot switch.

[0019] In some specific embodiments, the controller is further provided with a fifth output port and a sixth output port, which are respectively used to communicate with the solenoid valve of the machine and output control signals to the solenoid valve of the machine.

[0020] A second aspect of this application provides a work machine that includes the aforementioned work machine control device.

[0021] Through the above technical solution, by adding a quick-change directional valve and changing its valve position, the oil inlet line can be selectively connected to the working ports of both the attachment output valve and the tilt quick-change output valve. This allows the attachment output valve and the tilt quick-change output valve to share the same controller output port. That is, the same controller output port can output control signals to both the attachment output valve and the tilt quick-change output valve, reducing the number of controller output ports required. Furthermore, when changing attachments or quick-change valves, no changes to wiring harnesses or hydraulic lines are needed, enabling convenient replacement of the quick-change and tilt quick-change devices. In addition, because the attachment output valve and the tilt quick-change output valve share the same controller output port, the working machinery can be equipped with attachments such as hydraulic shears while using the tilt quick-change, further improving the efficiency of excavation operations.

[0022] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0024] Figure 1 The electrical schematic diagram of the operating machinery control device of this application is shown;

[0025] Figure 2 A topology diagram of the operating machinery control device of this application is shown;

[0026] Figure 3 A flowchart illustrating the control strategy of the operating machinery control device of this application is shown;

[0027] Figure 4 A partial hydraulic circuit diagram of the operating machinery control device of this application is shown.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Controller 11 First Output Port

[0030] 12 Second output port 13 Third output port

[0031] 14 Fourth output port 15 Fifth output port

[0032] 16 Sixth output port 17 First input port

[0033] 2 Quick-change directional valve 3 Attachment output valve

[0034] 4. Oil inlet line; 5. Tilting quick-change output valve

[0035] 6. Human-computer interaction device 7. Quick-change switch

[0036] 8. Key switch 9. Operating handle

[0037] 10 Quick-change solenoid valves, 18 pilot switches

[0038] 19. Main pump and main valve Detailed Implementation

[0039] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0040] In the field of construction machinery operation, taking excavators as an example, the existing methods for changing working attachments are quite cumbersome, and the control of tilt quick-change devices on the market is quite complex. They basically occupy multiple controller output ports, and sometimes a secondary controller is needed for electrical signal output control, which is quite troublesome and requires long-term operation, affecting work efficiency.

[0041] In view of the above, the first aspect of this application provides a machine tool control device, which includes a controller 1 and a quick-change directional valve 2. The controller 1 is provided with a first output port 11, a second output port 12, and a third output port 13. The quick-change directional valve 2 is communicatively connected to the third output port 13 and can switch to a first valve position or a second valve position according to the output signal of the third output port 13. When the quick-change directional valve 2 is in the first valve position, it connects the working port of the attachment output valve 3 to the oil inlet pipe 4 and disconnects the connection between the working port of the tilting quick-change output valve 5 and the oil inlet pipe 4. When the quick-change directional valve 2 is in the second valve position, it connects the working port of the tilting quick-change output valve 5 to the oil inlet pipe 4 and disconnects the connection between the working port of the attachment output valve 3 and the oil inlet pipe 4. When the quick-change directional valve 2 is switched to the first valve position, the first output port 11 and the second output port 12 are respectively communicatively connected to the attachment output valve 3 and used to send control signals to the attachment output valve 3. When the quick-change directional valve 2 switches to the second valve position, the first output port 11 and the second output port 12 are respectively connected to the tilt quick-change output valve 5 and are used to output control signals to the tilt quick-change output valve 5.

[0042] Due to the limited number of controller output ports of controller 1, and the fact that the tilt quick-change device requires multiple controller output ports, the existing control method cannot effectively combine the tilt quick-change with various attachments that require controller output ports, such as hydraulic shears, log clamps, hook clamps, wood chippers, and tree transplanters, thus imposing certain limitations on the operation of the machinery.

[0043] Therefore, such as Figure 1 and Figure 4 As shown, the control device for the working machinery in this application adds a quick-change directional valve 2. By changing the valve position of the quick-change directional valve 2, the oil circuit of the hydraulic system can be changed, allowing the oil inlet pipe 4 to be selectively connected to the working ports of the attachment output valve 3 and the tilt quick-change output valve 5. When attachments such as hydraulic shears, log clamps, hook clamps, wood chippers, and tree transplanters need to be installed on the tilt quick-change device, the attachment output valve 3 is communicatively connected to the first output port 11 and the second output port 12 of the controller 1, and the tilt quick-change output valve 5 is also communicatively connected to the first output port 11 and the second output port 12 of the controller 1. When the quick-change directional valve 2 switches to the first valve position, the working port of the attachment output valve 3 is connected to the oil inlet pipe 4, and the connection between the working port of the tilt quick-change output valve 5 and the oil inlet pipe 4 is cut off. That is, at this time, the oil inlet pipe 4 can only support the operation of the attachment's actuator cylinder, and the first output port 11 and the second output port 12 are used to output control signals to the attachment output valve 3. When the quick-change directional valve 2 switches to the second valve position, the working port of the tilt quick-change output valve 5 is connected to the inlet pipe 4, and the connection between the working port of the attachment output valve 3 and the inlet pipe 4 is cut off. This means that at this time, the inlet pipe 4 can only support the operation of the hydraulic cylinder of the tilt quick-change device. The first output port 11 and the second output port 12 are used to output control signals to the tilt quick-change output valve 5. Therefore, when installing attachments such as hydraulic shears, log clamps, hook clamps, wood chippers, and tree transplanters on the tilt quick-change device, the attachment output valve 3 and the tilt quick-change output valve 5 can share the first output port 11 and the second output port 12 of the controller 1 for control due to the quick-change directional valve 2. This reduces the number of output ports required by the controller 1, and eliminates the need to modify wiring harnesses or hydraulic pipes when changing attachments or quick-change devices, enabling convenient replacement of the quick-change device and the tilt quick-change device. Furthermore, since the attachment output valve 3 and the tilt quick-change output valve 5 share the same output port of the controller 1, the working machinery can be equipped with attachments such as hydraulic shears when using the tilt quick-change, which further improves the working efficiency of excavation operations.

[0044] It should be noted that the structures of components such as the quick-change directional valve 2, controller 1, oil inlet line 4, attachment output valve 3, tilt quick-change output valve 5, tilt quick-change device, and attachment can vary widely. For example... Figure 4As shown, the quick-change directional valve 2 can be a two-position, two-way solenoid valve, and the attachment output valve 3 and the tilt quick-change output valve 5 are both three-position, two-way solenoid valves, thus making the control structure more reasonable. The operating machinery can be excavators, log clamps, hook clamps, wood chippers, and tree transplanters, etc., and the attachments can be, for example, hydraulic shears, log clamps, hook clamps, wood chippers, and tree transplanters, etc. The structural principles of the quick-change directional valve 2, controller 1, attachment output valve 3, tilt quick-change output valve 5, tilt quick-change device, and attachments are well known to those skilled in the art and are not part of the core improvements of this application; therefore, they will not be described in detail here.

[0045] In some specific implementations, such as Figure 2 As shown, controller 1 outputs a switching signal to quick-change directional valve 2 via its output electrical harness. Quick-change directional valve 2 switches positions to change the oil circuit. When quick-change directional valve 2 switches to the first position, the first output port 11 outputs a left-hand control signal to attachment output valve 3, and the second output port 12 outputs a right-hand control signal to attachment output valve 3. When quick-change directional valve 2 switches to the second position, the first output port 11 outputs a left-tilt control signal to tilt quick-change output valve 5, and the second output port 12 outputs a right-tilt control signal to tilt quick-change output valve 5. Controller 1 outputs a PWM signal to the main pump and main valve 19 via its output electrical harness, and the main pump performs output.

[0046] Optionally, the machine control device may also include a human-machine interface 6. The human-machine interface 6 is connected to the controller 1 via a CAN bus to transmit data and commands. The human-machine interface 6 is used to display data and acquire user operation commands. The controller 1 is used to control the quick-change directional valve 2 to switch valve positions according to the operation commands through the third output port 13. Figure 1 and Figure 2 As shown, the human-machine interface 6 transmits data or commands to the controller 1 via the CAN bus, and the controller 1 transmits data to the human-machine interface 6 for display via the CAN bus. When the controller 1 confirms that the operation command is a tilt quick-change command, it can control the quick-change directional valve 2 to switch to the second valve position through the third output port 13. When the controller 1 confirms that the operation command is a normal quick-change command, it can control the quick-change directional valve 2 to switch to the first valve position through the third output port 13. Here, the controller 1 can be a vehicle controller, responsible for configuring vehicle functions and processing information, and the human-machine interface 6 can be a vehicle display for performing control operations.

[0047] Optionally, such as Figure 2As shown, the control device for the operating machinery may further include an operating handle 9, which is communicatively connected to the controller 1. The controller 1 outputs corresponding control signals through the first output port 11 or the second output port 12 according to the action of the operating handle 9. The operating handle 9 may be a multi-functional handle. Sliding the multi-functional handle dial causes a change in the voltage at the input terminal of the controller 1. The voltage change is transmitted through the electrical wiring harness, thereby realizing motion control.

[0048] Optionally, such as Figure 1 As shown, the control device for the operating machinery may also include a quick-change switch 7, which is communicatively connected to the controller 1. The quick-change switch 7 is used to control the opening and closing of the quick-change connector. When the quick-change switch 7 is closed, it transmits a low active signal to the controller 1. The quick-change switch 7 is a normally open switch.

[0049] Optionally, such as Figure 1 As shown, the machine control device may also include a pilot switch 18, and the controller 1 is further provided with a first input port 17. The first input port 17 is used to communicate with the pilot switch 18 and obtain the action signal of the pilot switch 18. The whole machine can only operate (including quick change operation) when the pilot switch 18 is closed (pilot lock is opened).

[0050] Optionally, such as Figure 1 As shown, the control device for the operating machinery may also include a key switch 8, which is used for power-on. The quick-change solenoid valve 10 can only output power when the key switch 8 is open.

[0051] Optionally, such as Figure 1 As shown, the control device for the operating machinery may also include a quick-change solenoid valve 10. The controller 1 is also provided with a fourth output port 14, which is used for communication connection with the quick-change solenoid valve 10. When the pin of the fourth output port 14 outputs a voltage, it will cause the quick-change solenoid valve 10 to open, allowing the quick-change device to open. The output conditions of the quick-change solenoid valve are: the vehicle key switch 8 is powered on; the pilot switch 18 is in the open state; and the quick-change switch 7 is in the open state.

[0052] Optionally, the controller 1 may also be provided with a fifth output port 15 and a sixth output port 16, which are used to communicate with the solenoid valve of the machine and output control signals to the solenoid valve of the machine.

[0053] A second aspect of this application also provides a work machine that includes the aforementioned work machine control device. Since the work machine includes the aforementioned work machine control device, it also possesses all the technical effects brought about by the work machine control device.

[0054] The following will be based on Figure 1 , Figure 2 , Figure 3 and Figure 4 The working process of the operating machinery control device of this application is described.

[0055] When performing a normal quick-change process, turn on the pilot switch 18, then turn on the quick-change switch 7 located on the vehicle's armrest box. Select the normal quick-change mode on the human-machine interface 6. After operation, the human-machine interface 6 will send a normal quick-change signal to the controller 1 via the CAN bus. If the machine is equipped with hydraulic shears, when the corresponding function knob of the operating handle 9 is touched, the controller 1 will receive the voltage signal of the knob and send a control signal to the attachment output valve 3 through the first output port 11 and the second output port 12, causing the hydraulic shears to rotate. During the tilt-to-quick-change process, the quick-change switch 7 located on the vehicle's armrest box is turned on, and the working machinery enters quick-change mode. At this time, the tilt-to-quick-change option is selected on the human-machine interface 6. The electrical signal on the human-machine interface 6 is transmitted to the controller 1 via the CAN bus, and the working machinery enters the tilt-to-quick-change mode. After the central unit processes the signal, a voltage is output at the pin of the quick-change directional valve 2, changing the hydraulic circuit. At this time, the corresponding function knob on the operating handle 9 is activated, and a control signal is sent to the tilt-to-quick-change output valve 5 through the first output port 11 and the second output port 12, controlling the tilt-to-left and right tilt. The quick-change directional valve 2 remains energized throughout this process.

[0056] By setting up the machinery control device of this application, when the machinery is equipped with both a tilt quick-change device and hydraulic shears, dual control of the tilt quick-change device and hydraulic shears can be achieved through the human-machine interface 6. When the machinery is equipped with both a tilt quick-change device and hydraulic shears, it is necessary to control both the hydraulic shears and the tilt quick-change device. When tilt quick-change operation is performed, the quick-change switch 7 is turned on, and the quick-change switch pin on the controller 1 receives a low active signal, the vehicle enters the quick-change mode, and normal attachment changing and other operations can be performed. Because the vehicle is equipped with a tilt quick-change device, tilting operations can also be performed. When the tilt quick-change mode is selected on the human-machine interface 6, the human-machine interface 6 will send a signal to the controller 1 via the CAN bus after the mode selection is completed. At this time, after the controller 1 processes the signal, it controls the pin output voltage of the quick-change reversing valve 2, and the knob-related function control of the operating handle 9 is changed to the tilt quick-change left and right tilt function. When the knob is operated, the first output port 11 and the second output port 12 can control the tilt quick-change left and right tilt. When tilting is not required, select the normal quick-change option on the human-machine interface 6. The human-machine interface 6 will send a signal to the controller 1 again via the CAN bus. At this time, the quick-change directional valve 2 will be de-energized, and the knob of the operating handle 9 can only control the left and right rotation of the hydraulic shear.

[0057] In summary, the operating machinery control device and the operating machinery of this application enable convenient replacement of quick-change devices and tilting quick-change devices. Furthermore, when tilting the quick-change device, it can be equipped with attachments such as hydraulic shears simultaneously. Moreover, replacing attachments or quick-change devices does not require modification of wiring harnesses, hydraulic pipes, etc. When the operating machinery needs to perform complex operations, it can be equipped with both hydraulic shears and tilting quick-change devices simultaneously, saving time spent on attachment replacement. The quick-change mode can be easily switched, reducing the time consumed by replacement and installation processes and the quality fluctuations caused by replacement and installation, thus improving work efficiency. In addition, the excavation operation is simple and comfortable, providing a visual operating interface, which also reduces the risk of misoperation and improves the user experience.

[0058] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A control device for operating machinery, characterized in that, include: The controller (1) is provided with a first output port (11), a second output port (12), and a third output port (13); The quick-change directional valve (2) is communicatively connected to the third output port (13) and can switch to the first valve position or the second valve position according to the output signal of the third output port (13). When the quick-change directional valve (2) is in the first valve position, it connects the working port of the attachment output valve (3) with the oil inlet pipe (4) and cuts off the connection between the working port of the inclined quick-change output valve (5) and the oil inlet pipe (4). When the quick-change directional valve (2) is in the second valve position, it connects the working port of the inclined quick-change output valve (5) with the oil inlet pipe (4) and cuts off the connection between the working port of the attachment output valve (3) and the oil inlet pipe (4). When the quick-change directional valve (2) switches to the first valve position, the first output port (11) and the second output port (12) are respectively used to output control signals to the attachment output valve (3); when the quick-change directional valve (2) switches to the second valve position, the first output port (11) and the second output port (12) are respectively used to output control signals to the tilt quick-change output valve (5).

2. The control device for operating machinery according to claim 1, characterized in that, When the quick-change directional valve (2) switches to the first valve position, the first output port (11) is used to output a left-hand control signal to the attachment output valve (3), and the second output port (12) is used to output a right-hand control signal to the attachment output valve (3). When the quick-change directional valve (2) switches to the second valve position, the first output port (11) is used to output a left tilt control signal to the tilt quick-change output valve (5), and the second output port (12) is used to output a right tilt control signal to the tilt quick-change output valve (5).

3. The machine control device according to claim 1, characterized in that, The control device for the operating machinery also includes: The human-machine interface (6) is connected to the controller (1) for displaying data and obtaining user operation commands. The controller (1) is used to control the quick-change directional valve (2) to switch the valve position according to the operation command through the third output port (13).

4. The control device for operating machinery according to claim 1, characterized in that, The control device for the operating machinery also includes: The operating handle (9) is communicatively connected to the controller (1), which is used to output corresponding control signals through the first output port (11) or the second output port (12) according to the action of the operating handle (9).

5. The control device for operating machinery according to claim 1, characterized in that, The control device for the operating machinery also includes: The quick-change switch (7) is connected in communication with the controller (1) and is used to control the opening and closing of the quick-change connector.

6. The control device for operating machinery according to claim 1, characterized in that, The control device for the operating machinery also includes a quick-change solenoid valve (10), and the controller (1) is also provided with a fourth output port (14), which is used to communicate with the quick-change solenoid valve (10).

7. The control device for operating machinery according to claim 1, characterized in that, The control device for the operating machinery also includes a key switch (8), which is used to power on the machine.

8. The control device for operating machinery according to claim 1, characterized in that, The control device for the operating machinery also includes a pilot switch (18), and the controller (1) is further provided with a first input port (17). The first input port (17) is used to communicate with the pilot switch (18) and obtain the action signal of the pilot switch (18).

9. The control device for operating machinery according to claim 1, characterized in that, The controller (1) is also provided with a fifth output port (15) and a sixth output port (16), the fifth output port (15) and the sixth output port (16) being used to communicate with the solenoid valve of the machine and output control signals to the solenoid valve of the machine.

10. A type of operating machinery, characterized in that, Includes the operating machinery control device according to any one of claims 1 to 9.

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