Control device, rotary conveyor, controller and screen cleaner

Abstract

The present disclosure relates to the technical field of railway large-scale maintenance machinery, in particular to a control device, a controller, a rotary conveyor belt and a screen cleaner, the control device is applied to the rotary conveyor belt of the screen cleaner, and comprises a power driving device, a signal receiving device, a decoding device and a control device; the power driving device is used for controlling the height and deflection angle of the rotary conveyor belt; the signal receiving device is used for receiving a wireless control signal; the decoding device is used for decoding the wireless control signal to obtain a control instruction; and the control device is used for controlling the power driving device according to the control instruction. The control device provided by the present disclosure has wireless signal processing capability, can receive and decode the wireless control signal, and adjust the height and deflection angle of the rotary conveyor belt according to the control signal, so that the control personnel can control the rotary conveyor belt in a place with better vision outside the vehicle.

Description

Technical Field

[0001] This disclosure relates to the field of railway large-scale maintenance machinery technology, and particularly to a control device, a rotary conveyor belt, a controller, and a screen cleaning machine. Background Technology

[0002] A track cleaning machine is a common large-scale track maintenance equipment, typically used to remove various types of garbage and debris from tracks, such as stones, glass shards, wooden sticks, waste paper, etc. Figure 1 A photograph of a rotary conveyor belt of a screen cleaning machine in operation. Figure 1 The blue conveyor belt in the image is a rotary conveyor belt, a crucial component of the screening machine used to transport waste and debris during screening. Adjusting the angle of the rotary conveyor belt appropriately during the screening process optimizes the material's transport path. If the angle is inappropriate, material may accumulate near the end of the conveyor belt, affecting the transport of subsequent materials and even causing a blockage.

[0003] The control device for the rotary conveyor belt of existing screen cleaning machines is located inside the machine itself. Adjusting the rotary conveyor belt is controlled by the driver inside the machine, but the driver's field of vision does not cover the conveyor belt, thus requiring personnel outside the machine to provide guidance. In complex environments, this guidance can be affected. For example, during adjacent track ballast loading operations, the high noise and dust levels can impede the transmission of instructions, whether through gestures or voice. This can prevent operators on the machine from adjusting the conveyor belt's deflection angle in a timely manner, potentially causing uneven loading of open wagons receiving old track ballast material on adjacent tracks, directly impacting operational and safety procedures. Therefore, designing a control device for the rotary conveyor belt of a screen cleaning machine that allows personnel controlling the conveyor belt to have a direct view of the working environment is a pressing technical problem in this field. Utility Model Content

[0004] This disclosure provides a rotary conveyor belt to solve the problem in the prior art where the control device of the rotary conveyor belt of a screening machine is located inside the vehicle, and the personnel controlling the rotary conveyor belt cannot directly see the working environment of the rotary conveyor belt.

[0005] In a first aspect, this disclosure provides a control device for a rotary conveyor belt of a screen cleaning machine, comprising: a power drive device, a signal receiving device, a decoding device, and a control device; the power drive device is used to control the height and deflection angle of the rotary conveyor belt; the signal receiving device is used to receive wireless control signals; the decoding device is used to decode the wireless control signals to obtain control commands; and the control device is used to control the power drive device according to the control commands.

[0006] In some embodiments, the control device includes a wireless switch; the wireless switch is used to control the control terminal of the power drive device to receive a logic high voltage or a logic low voltage according to a control command; the power drive device is used to control the height and deflection angle of the rotary conveyor belt according to the voltage input to the control terminal.

[0007] In some embodiments, the wireless switch includes four single-pole double-throw switches, and the power drive device includes two three-position four-way solenoid valves. Each three-position four-way solenoid valve includes two valves. One control terminal of each valve is grounded, and the other control terminal of each valve is connected to the normally open terminal of each single-pole double-throw switch through a diode. The normally closed terminal of each single-pole double-throw switch is left floating, and the common terminal of each single-pole double-throw switch is connected to a constant voltage source. The supply voltage of the constant voltage source is equal to the logic high voltage of the control terminal. Each single-pole double-throw switch controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

[0008] In some embodiments, the power drive device further includes four single-pole single-throw switches, one end of each single-pole single-throw switch being connected to a constant voltage source, and the other ends of the four single-pole single-throw switches being connected to four control terminals in a corresponding manner.

[0009] In some embodiments, the wireless switch includes four single-pole double-throw switches, and the power drive includes two three-position four-way solenoid valves; each three-position four-way solenoid valve includes two valves, one control terminal of each valve is grounded, and the other control terminal of each valve is connected to the common terminal of each single-pole double-throw switch through a diode, the normally closed terminal of each single-pole double-throw switch is grounded, and the normally open terminal of each single-pole double-throw switch is connected to a constant voltage source. The constant voltage source supplies power at a voltage equal to the logic high voltage of the control terminal. Each single-pole double-throw switch controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

[0010] In some embodiments, the device further includes a storage device for storing control instructions; the control device is also configured to retrieve the control instructions from the storage device at preset time intervals.

[0011] Secondly, this disclosure provides a controller, including an input device, an encoding device, and an antenna; the input device is used to generate control commands based on input; the encoding device is used to generate wireless control signals based on the control commands and send the wireless control signals to the antenna; the antenna is used to transmit the wireless control signals.

[0012] In some embodiments, the input device is a button or a touch input device.

[0013] Thirdly, this disclosure provides a rotary conveyor belt, including the control device of any of the above, and the controller of any of the above.

[0014] Fourthly, this disclosure provides a screen cleaning machine, including the aforementioned rotary conveyor belt.

[0015] The control device provided in this disclosure has wireless signal processing capabilities, enabling it to receive and decode wireless control signals, and adjust the height and deflection angle of the rotary conveyor belt according to the control signals. This allows the operator to control the rotary conveyor belt from a location with better visibility outside the vehicle. Attached Figure Description

[0016] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings: Figure 1 A photograph of a rotary conveyor belt of a screen cleaning machine in operation; Figure 2 This is a schematic diagram of the structure of a control device provided in an embodiment of the present disclosure; Figure 3 A circuit diagram of a control device provided in an embodiment of this disclosure; Figure 4 Photographs of the control device and controller of the screen cleaning machine provided in the embodiments of this disclosure; Figure 5 A circuit diagram of another control device provided in an embodiment of this disclosure; Figure 6 A circuit diagram of another control device provided in the embodiments of this disclosure; Figure 7 This is a schematic diagram of the structure of another control device provided in an embodiment of the present disclosure; Figure 8 A photograph of the screen cleaning machine of this disclosure controlled from outside the vehicle; Figure 9 This is a schematic diagram of the structure of a control device provided in an embodiment of the present disclosure; The markings in the diagram are as follows: 1-Power drive device, 11-Three-position four-way solenoid directional valve, 12-Single-pole single-throw switch, 2-Signal receiving device, 3-Decoding device, 4-Control device, 41-Wireless switch, 411-Single-pole double-throw switch, 5-Storage device, 6-Input device, 7-Encoding device, 8-Antenna.

[0017] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this disclosure, and to fully understand and implement the process of how this disclosure applies technical means to solve technical problems and achieve corresponding technical effects, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. The embodiments of this disclosure and the various features within them can be combined with each other without conflict, and the resulting technical solutions are all within the protection scope of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort should fall within the protection scope of this disclosure.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] Figure 2 This is a schematic diagram of a control device provided in an embodiment of the present disclosure. The control device is applied to the rotary conveyor belt of a screen cleaning machine and includes: a power drive device 1, a signal receiving device 2, a decoding device 3, and a control device 4. The power drive device 1 is used to control the height and deflection angle of the rotary conveyor belt; the signal receiving device 2 is used to receive wireless control signals; the decoding device 3 is used to decode the wireless control signals to obtain control commands; and the control device 4 is used to control the power drive device 1 according to the control commands.

[0021] The screen cleaning machine using a rotary conveyor belt in this embodiment of the disclosure can be any type of screen cleaning machine used for cleaning railway tracks, such as the QS-650 screen cleaning machine.

[0022] Specifically, the power drive device 1 may include a fluid and a solenoid valve for controlling the fluid. The wireless communication method corresponding to the signal receiving device 2 may be one of Bluetooth, WIFI (Wireless Fidelity), Zigbee, RF (Radio Frequency), infrared, etc. The decoding method of the decoding device 3 corresponds to the wireless communication method supported by the signal receiving device 2. The control device 4 may be a control chip or a switch, etc.

[0023] In some embodiments, the control device 4 includes a wireless switch 41; the wireless switch 41 is used to control the control terminal of the power drive device 1 to connect to a logic high voltage or a logic low voltage according to a control command; the power drive device 1 is used to control the height and deflection angle of the rotary conveyor belt according to the voltage input to the control terminal.

[0024] This disclosure uses a wireless switch to control the height and deflection angle of a rotary conveyor belt, providing a relatively low-cost wirelessly controlled rotary conveyor belt.

[0025] Figure 3 This is a circuit diagram of a control device provided in an embodiment of the present disclosure.

[0026] In some embodiments, the wireless switch 41 includes four single-pole double-throw switches 411, and the power drive device 1 includes two four-way solenoid directional valves 11. Each four-way solenoid directional valve 11 includes two valves. One control terminal of each valve is grounded, and the other control terminal of each valve is connected to the normally open terminal of each single-pole double-throw switch 411 through a diode. The normally closed terminal of each single-pole double-throw switch 411 is left floating, and the common terminal of each single-pole double-throw switch 411 is connected to a constant voltage source. The supply voltage of the constant voltage source is equal to the logic high voltage of the control terminal. Each single-pole double-throw switch 411 controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

[0027] By controlling the four valves of the three-position four-way solenoid directional valve 111 via the wireless switch 41, the rotary conveyor belt can perform four actions: left, right, up, and down. The wireless switch 41 can receive control signals from its paired remote control and control the moving contacts of the wireless switch 41 according to the signals from the remote control. Figure 4 A photograph of the control device and controller of the screen cleaning machine provided in the embodiments of this disclosure.

[0028] Additionally, the diode's function is to conduct in the forward direction and cut off in the reverse direction, preventing current backflow and protecting the wireless switch 41. Constant voltage source ( Figure 3 The voltage of VCC in the code is equal to the logic high voltage, which can be 12V or 24V.

[0029] The wireless switch used in the control device disclosed herein can control and adjust the three-position four-way valve of the rotary conveyor belt of the screen cleaning machine. Therefore, the rotary conveyor belt using the control device can be remotely controlled and adjusted from a location with good visibility outside the vehicle by controlling the remote control of the wireless switch. Moreover, the use of a wireless switch to build the circuit has the advantage of low cost.

[0030] Figure 5 A circuit diagram of another control device provided in an embodiment of this disclosure.

[0031] In some embodiments, the power drive device 1 further includes four single-pole single-throw switches 12, one end of each single-pole single-throw switch 12 being connected to a constant voltage source, and the other ends of the four single-pole single-throw switches 12 being connected to four control terminals in a corresponding manner.

[0032] The embodiments disclosed herein can realize two operating modes for controlling a three-phase four-way switching valve: wired mode and wireless mode.

[0033] 1. Wired mode When operating in wired mode, all wireless switches 41 can be controlled, keeping them in the normally open state. At this time, the normally open terminals of the wireless switches 41 connected to the control terminals are in a floating state. The single-pole single-throw switch 12 is controlled to open and close, thus controlling the control terminals.

[0034] 2. Wireless mode When operating in wireless mode, all single-pole single-throw switches 12 can be disconnected. The wireless switch 41 is controlled to operate the control terminals.

[0035] The rotary conveyor belt of this disclosure can be controlled by a wired control device to control its height and deflection angle, and it can also be controlled by a wireless control device. This means that the operator's field of vision can be fully covered by the rotary conveyor belt in noisy and low-visibility environments, and the wired control method can resist interference in places with strong signal interference. The control method is more flexible according to the application scenario.

[0036] Figure 6 A circuit diagram of another control device provided in an embodiment of this disclosure.

[0037] In some embodiments, the wireless switch 41 includes four single-pole double-throw switches 411, and the power drive device 1 includes two four-way solenoid directional valves 11. Each four-way solenoid directional valve 11 includes two valves. One control terminal of each valve is grounded, and the other control terminal of each valve is connected to the common terminal of each single-pole double-throw switch 411 through a diode. The normally closed terminal of each single-pole double-throw switch 411 is grounded, and the normally open terminal of each single-pole double-throw switch 411 is connected to a constant voltage source. The power supply voltage of the constant voltage source is equal to the logic high voltage of the control terminal. Each single-pole double-throw switch 411 controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

[0038] This disclosure provides another device for remotely controlling a rotary conveyor belt using a wireless switch 41, enabling users to design control devices for rotary conveyor belts more flexibly according to their needs.

[0039] Figure 7 This is a schematic diagram of the structure of a control device provided in an embodiment of the present disclosure.

[0040] In some embodiments, the device further includes a storage device 5; the storage device 5 is used to store control instructions; the control device 4 is also used to retrieve the control instructions from the storage device 5 at preset time intervals.

[0041] In practical applications, users can remotely input multiple control commands at once, along with the time interval for switching between them. The control device stores these control commands in storage device 5 and recalls them according to the time intervals, thus enhancing the level of automation.

[0042] Figure 8 A photograph of the screen cleaning machine of this disclosure controlled from outside the vehicle.

[0043] This disclosure provides embodiments of a controller for remotely controlling a control device.

[0044] Figure 9 This is a schematic diagram of the structure of a controller provided in an embodiment of the present disclosure. The controller of the present disclosure includes an input device 6, an encoding device 7, and an antenna 8. The input device 6 is used to generate control commands based on the input. The encoding device 7 is used to generate wireless control signals based on the control commands and send the wireless control signals to the antenna. The antenna 8 is used to transmit the wireless control signals.

[0045] The antenna is used to enhance the power of the wireless control signal, allowing it to propagate over a longer range. The wireless communication protocol supported by the encoding device is the same as that supported by the decoding device 3 of the rotary conveyor belt.

[0046] In some embodiments, the input device 6 is a button or a touch input device.

[0047] In practical applications, the button can have two states: pressed and released, corresponding to the states of the wireless switch 41. For example, the wireless switch 41 is a single-pole double-throw switch 411. Pressing the button changes the moving contact of the corresponding switch, connecting the common terminal to the normally open terminal; conversely, releasing the button connects the common terminal to the normally closed terminal. The touch input device can be a graphical human-machine interface with a switch icon that can be touched to control the motor.

[0048] This disclosure provides a rotary conveyor belt including the control device described in any of the above.

[0049] This disclosure provides a screen cleaning machine, including the aforementioned rotary conveyor belt.

[0050] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0051] While the embodiments disclosed herein are as described above, the foregoing content is merely for the purpose of facilitating understanding of this disclosure and is not intended to limit this disclosure. Any person skilled in the art to which this disclosure pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope of this disclosure; however, the scope of patent protection of this disclosure shall still be determined by the scope defined in the appended claims.

Claims

1. A control device applied to the rotary conveyor belt of a screen cleaning machine, characterized in that, include: The device includes a power drive unit (1), a signal receiving unit (2), a decoding unit (3), and a control unit (4). A power drive unit (1) is used to control the height and deflection angle of the rotary conveyor belt; Signal receiving device (2), used to receive wireless control signals; Decoding device (3) is used to decode the wireless control signal to obtain control commands; The control device (4) is used to control the power drive device (1) according to the control command.

2. The control device according to claim 1, characterized in that, The control device (4) includes a wireless switch (41); The wireless switch (41) is used to control the control terminal of the power drive device (1) to connect to a logic high voltage or a logic low voltage according to the control command; the power drive device (1) is used to control the height and deflection angle of the rotary conveyor belt according to the voltage input from the control terminal.

3. The control device according to claim 2, characterized in that, The wireless switch (41) includes four single-pole double-throw switches (411), and the power drive device (1) includes two three-position four-way solenoid valves (11). Each three-position four-way solenoid valve (11) includes two valves. One control terminal of each valve is grounded, and the other control terminal of each valve is connected to the normally open terminal of each single-pole double-throw switch (411) through a diode. The normally closed terminal of each single-pole double-throw switch (411) is left floating, and the common terminal of each single-pole double-throw switch (411) is connected to a constant voltage source. The constant voltage source is supplied with a voltage equal to the logic high voltage of the control terminal. Each single-pole double-throw switch (411) controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

4. The control device according to claim 3, characterized in that, The power drive device (1) also includes four single-pole single-throw switches (12), one end of each single-pole single-throw switch (12) is connected to the constant voltage source, and the other ends of the four single-pole single-throw switches (12) are connected to the four control terminals one by one.

5. The control device according to claim 2, characterized in that, The wireless switch (41) includes four single-pole double-throw switches (411), and the power drive device (1) includes two three-position four-way solenoid valves (11). Each three-position four-way solenoid valve (11) includes two valves. One control terminal of each valve is grounded, and the other control terminal of each valve is connected to the common terminal of each single-pole double-throw switch (411)(2) through a diode. The normally closed terminal of each single-pole double-throw switch (411) is grounded, and the normally open terminal of each single-pole double-throw switch (411) is connected to a constant voltage source. The constant voltage source is supplied with a voltage equal to the logic high voltage of the control terminal. Each single-pole double-throw switch (411) controls the common terminal to be connected to the normally open terminal or the normally closed terminal to be connected to the normally closed terminal according to the wireless control signal.

6. The control device according to claim 1, characterized in that, It also includes a storage device (5); Storage device (5) for storing the control commands; The control device (4) is also used to recall the control instructions from the storage device at preset time intervals.

7. A controller, characterized in that, It includes an input device (6), an encoding device (7), and an antenna (8); Input device (6) is used to generate control commands based on input; The encoding device (7) is used to generate a wireless control signal according to the control command and send the wireless control signal to the antenna (8); Antenna (8) is used to transmit the wireless control signal.

8. The controller according to claim 7, characterized in that, The input device (6) is a button or touch input device.

9. A rotary conveyor belt, characterized in that, It includes the control device according to any one of claims 1-6, and the controller according to claim 7 or claim 8.

10. A screen cleaning machine, characterized in that, Includes the rotary conveyor belt as described in claim 9.

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