A crane outrigger centralized control system

Abstract

The utility model relates to the technical field of hoist, disclose a kind of hoist outrigger centralized control system, including programmable controller, for controlling the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, tail right outrigger of hoist, still include multiple control panels connected with programmable controller, multiple control panels with the programmable controller access same CAN bus under, multiple control panels have same control button, can control all outrigger. The utility model is installed in hoist different position by setting multiple control panels, with same control function, can control the action of all outrigger, realize single panel can be completed to the operation of each outrigger action and light of hoist, avoid staff when hoist each outrigger adjustment needs repeatedly walk and switch control operation, save operation time, improve efficiency.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a centralized control system for crane outriggers. Background Technology

[0002] Truck-mounted cranes typically have outriggers mounted on the sides and rear of the chassis, which extend to support the ground during operation. Their function is to stabilize the vehicle and prevent the crane from tipping over. To ensure stability, the horizontal and vertical positions of each outrigger must be adjusted before lifting operations, ensuring that all outriggers are fully extended on solid ground and that pressure is distributed and the center of gravity is balanced.

[0003] Currently, the control of outriggers on truck-mounted cranes is often achieved by having control levers at each outrigger position, or by having devices on each side of the vehicle to control local outriggers. When adjusting each outrigger, the operator needs to repeatedly walk around and switch control operations, which is inconvenient, time-consuming, and labor-intensive. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a centralized control system for crane outriggers. By integrating various control panels and motion control of each crane outrigger into one system, a single panel can be used to operate the movements of each crane outrigger and the lights.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centralized control system for crane outriggers, installed on a crane, including a programmable controller for controlling the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger of the crane, and also including multiple control panels connected to the programmable controller via a CAN bus, wherein the multiple control panels have the same control buttons and can all control all outriggers.

[0006] Furthermore, the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger are respectively equipped with a horizontal solenoid valve and a vertical solenoid valve to control the horizontal extension and vertical extension of the corresponding outrigger.

[0007] Furthermore, the multiple control panels and the programmable controller are connected to the same CAN bus. The control panel sends button commands to the programmable controller via the CAN bus. After receiving the corresponding button command, the programmable controller outputs the corresponding action to the solenoid valve, thereby realizing the function of the control panel controlling the support leg.

[0008] Preferably, a left control panel and a right control panel are provided on both sides of the crane.

[0009] Preferably, the control panel is mounted on the periphery of the crane chassis.

[0010] Furthermore, the programmable controller includes a central processing unit (CPU) module, a CAN bus communication module, an I / O module, a power supply module, and a storage module. The CPU module runs the control program, processes button commands from the control panel, generates control signals, and outputs them. The CAN bus communication module enables data exchange between the programmable controller and the control panel. The I / O module controls the energization and de-energization of the coils of the horizontal and vertical solenoid valves, thereby controlling the flow of hydraulic oil and enabling the extension, retraction, and vertical lifting / lowering of the outriggers, while also controlling the on / off state of the outrigger lights. The power supply module provides a stable and isolated power supply to each module of the programmable controller. The storage module stores the control program and parameter information.

[0011] Furthermore, the control panel includes multiple control buttons, including a panel start button, a leg light button, a horizontal adjustment button for each leg, and a vertical adjustment button for each leg.

[0012] Preferably, a centralized control system for crane outriggers includes a left control panel and a right control panel. Each control panel includes 16 control buttons: a panel start button, an outrigger light button, an outrigger extension button, an outrigger retraction button, a left front horizontal button, a left front vertical button, a right front horizontal button, a right front vertical button, a left rear horizontal button, a left rear vertical button, a right rear horizontal button, a right rear vertical button, a tail left horizontal button, a tail left vertical button, a tail right horizontal button, and a tail right vertical button. The outrigger extension button controls all outriggers to extend simultaneously, sequentially from the horizontal and vertical directions. The outrigger retraction button controls all outriggers to retract simultaneously, sequentially from the vertical and horizontal directions. Each outrigger horizontal or vertical button individually controls the horizontal or vertical extension or retraction of the corresponding outrigger. A single button controls the horizontal outrigger extension / retraction. The button's instantaneous signal and internal state memory record the previous direction of movement, automatically switching the output to the opposite direction of the solenoid valve each time it is pressed, and stopping when released.

[0013] Compared with existing technologies, the advantages of this centralized control system for crane outriggers are: Multiple control panels are installed at different locations on the crane, each with the same control function. They can control the movement of all outriggers, allowing a single panel to operate all outrigger movements and lights. This avoids the need for operators to repeatedly walk around and switch controls when adjusting the outriggers, saving operation time and improving efficiency. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the control system of this utility model; Figure 2 This is a block diagram of a programmable logic controller (PLC). Figure 3 This is a schematic diagram of the control panel structure; In the diagram: 1. Control panel; 2. Control buttons. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figure 1 This embodiment provides a centralized control system for crane outriggers, installed on the crane, including a programmable controller (PLC) for controlling the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger. A left control panel and a right control panel are respectively located on both sides of the crane, connected to the PLC via the same CAN bus, and are respectively installed on the left and right sides of the crane chassis perimeter. Each of the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger is equipped with a horizontal solenoid valve and a vertical solenoid valve to control the horizontal and vertical extension and retraction of the corresponding outrigger, and each solenoid valve is connected to the PLC. The PLC is also connected to a light switch located on the underside of the crane body.

[0017] See Figure 2 The programmable controller includes a central processing unit (CPU) module, a CAN bus communication module, an I / O module, a power supply module, and a storage module. The CPU module runs the control program, processes button commands from the control panel, generates control signals, and outputs them. The CAN bus communication module enables data exchange between the programmable controller and the control panel. The I / O module controls the energization and de-energization of the coils of the horizontal and vertical solenoid valves, thereby controlling the flow of hydraulic oil and enabling the extension, retraction, and vertical lifting of the outriggers, as well as controlling the on / off state of the outrigger lights. The power supply module provides a stable and isolated power supply to all modules of the programmable controller. The storage module stores the control program and parameter information.

[0018] See Figure 3In this embodiment, the left and right control panels have identical structures and identical control buttons, both capable of controlling all outriggers. There are 16 control buttons: panel start button, outrigger light button, outrigger extension button, outrigger retraction button, left front horizontal button, left front vertical button, right front horizontal button, right front vertical button, left rear horizontal button, left rear vertical button, right rear horizontal button, right rear vertical button, tail left horizontal button, tail left vertical button, tail right horizontal button, and tail right vertical button. The outrigger extension button controls all outriggers to extend simultaneously, sequentially from the horizontal and vertical directions. The outrigger retraction button controls all outriggers to retract simultaneously, sequentially from the vertical and horizontal directions. Each outrigger horizontal or vertical button individually controls the horizontal or vertical extension / retraction of its corresponding outrigger. A single button controls the horizontal outrigger extension / retraction. Utilizing the button's instantaneous signal and internal state memory, the previous action direction is recorded. Each time the button is pressed, the output automatically switches to the opposite direction of the solenoid valve, stopping when the button is released.

[0019] The control panel in this embodiment uses silicone panel material. Each control button uses a 5-pin M12 male connector. Each connector has five interfaces, numbered 1-5, which are respectively connected to the CAN bus ground terminal, power positive terminal, power ground terminal, CAN bus L terminal, and CAN bus H terminal.

[0020] The CAN communication protocol follows the CAN 2.0B protocol with a baud rate of 250 kBit / s. All button control information uses 8 bytes, BYTE0 to BYTE7. Unused bits are low (0h). When multiple bytes form data, the low byte comes first, followed by the high byte. During power-on, the operation panel continuously transmits data at a period of 100ms, but it transmits immediately when there is a change in data (button state change).

[0021] Panel logic: After the panel is powered on, the red LED of the panel start button is constantly lit. After pressing and holding for 3 seconds, the green LED of the panel start button is constantly lit. After 5 minutes of inactivity, the panel enters the off state and needs to be restarted by pressing the panel start button again. The leg extension and leg retraction buttons have self-resetting message outputs, while the others are self-locking. No LEDs are lit when no button is in use, and the green LED is constantly lit when an output is made.

[0022] The working principle of this utility model is as follows: The control panel sends button commands to the programmable controller (PLC) via the CAN bus. Upon receiving the corresponding button command, the PLC outputs the corresponding action to the solenoid valve, thus enabling the control panel to control the outriggers. For example, to control the extension of the left front outrigger horizontal cylinder using the panel: Press the panel start button for 3 seconds; the corresponding button light changes from red to green. The panel has been successfully opened. Release the button to proceed to the next step; press the left front horizontal button; the corresponding button light illuminates green. Selection successful. Release the button to proceed to the next step; press the outrigger extension button; the crane's left front outrigger horizontal cylinder extends. The action stops immediately upon release. Press the button again to extend the crane's left front outrigger horizontal cylinder, completing the outrigger movement. Press the panel start button again; the corresponding button light changes from green to red, indicating the panel has been successfully closed. If this operation is not performed, and no button is triggered within 5 minutes, the panel will automatically close.

[0023] Because this crane outrigger centralized system has multiple control panels installed at different locations on the crane, all with the same control function, it can control the movement of all outriggers. A single panel can be used to operate the movement of each outrigger and the lights of the crane. Therefore, it can avoid the need for operators to repeatedly walk around and switch control operations when adjusting the crane's outriggers, saving operation time and improving efficiency.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centralized control system for crane outriggers, installed on a crane, characterized in that: The system includes a programmable logic controller (PLC) for controlling the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger of the crane. It also includes multiple control panels connected to the PLC, which are connected to the same CAN bus. The multiple control panels have the same control buttons and can control all outriggers.

2. The centralized control system for crane outriggers according to claim 1, characterized in that: Each of the left front outrigger, left rear outrigger, tail left outrigger, right front outrigger, right rear outrigger, and tail right outrigger is equipped with a horizontal solenoid valve and a vertical solenoid valve to control the horizontal and vertical extension and retraction of the corresponding outrigger.

3. The centralized control system for crane outriggers according to claim 1, characterized in that: A left-side control panel and a right-side control panel are located on both sides of the crane.

4. The centralized control system for crane outriggers according to claim 1, characterized in that: The control panel is installed on the outer perimeter of the crane chassis.

5. The centralized control system for crane outriggers according to claim 1, characterized in that: The programmable controller includes a central processing unit module, a CAN bus communication module, an I / O module, a power supply module, and a storage module.

6. The centralized control system for crane outriggers according to claim 1, characterized in that: The control panel includes multiple control buttons, including a panel start button, outrigger light buttons, horizontal adjustment buttons for each outrigger, and vertical adjustment buttons for each outrigger.

7. The centralized control system for crane outriggers according to claim 1, characterized in that: Each control panel includes 16 control buttons: panel start button, outrigger light button, outrigger extension button, outrigger retraction button, left front horizontal button, left front vertical button, right front horizontal button, right front vertical button, left rear horizontal button, left rear vertical button, right rear horizontal button, right rear vertical button, tail left horizontal button, tail left vertical button, tail right horizontal button, and tail right vertical button.

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