Electric getting-on and getting-off escalator control system and mining excavator

Abstract

The invention discloses an electric getting-on and getting-off escalator control system and a mining excavator. The electric getting-on and getting-off escalator control system comprises an escalator platform, a sliding escalator, an electric winch, a storage battery pack, a wireless remote controller and a control box. An escalator track is arranged on the escalator platform, and the sliding escalator is mounted in the escalator track and can move up and down along the track; the electric winch is used for driving the sliding escalator to move up and down; the storage battery pack supplies power to the electric winch; the wireless remote controller sends a starting signal and a stopping signal to the control box, and the control box controls operation of the electric winch according to the signals. A worker can achieve automatic lifting of the getting-on and getting-off escalator by controlling the wireless remote controller, even if a vehicle engine flames out or cannot be started due to faults, the worker can still control the getting-on and getting-off escalator to ascend and descend normally, and smooth passing of the worker is effectively guaranteed. And meanwhile, after the operation is finished and the engine normally flames out, the worker can control the escalator to be normally recovered after getting off, so that irrelevant personnel are prevented from climbing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of control of boarding and alighting escalators, and more particularly to an electric boarding and alighting escalator control system and a mining excavator. Background Art

[0002] In the prior art, the boarding and alighting escalator system is hydraulically driven, using a hydraulic winch and a hydraulic push rod. The engine drives a hydraulic pump, and the hydraulic pump supplies oil to the hydraulic winch and the hydraulic push rod to drive them to work. When operating the boarding and alighting escalator system, the engine must be in a working state. Before getting off the vehicle, the vehicle needs to be parked first, then the escalator is lowered, and then the engine is turned off. After getting off the vehicle, the escalator cannot be retracted. When getting on the vehicle and starting to work, one needs to get on the vehicle first, enter the cab for pre-operation power-on inspection, then start the engine. After the engine works, the boarding and alighting escalator can be retracted, and only after retracting the boarding and alighting escalator can the excavation operation be carried out.

[0003] When the engine is not working or fails, the boarding and alighting escalator system cannot work, and the staff is blocked from getting on and off the vehicle normally. At the same time, when the engine is turned off, the staff cannot retract the escalator. At this time, unauthorized personnel can board the equipment through the escalator and approach key parts such as the cab, which seriously affects the safety of the equipment. In addition, after getting on the vehicle, the staff must first enter the cab, complete the equipment inspection and start the engine before they can retract the escalator. There is a certain distance between the cab and the escalator. If the staff walks back to the escalator to operate, it will cause waste of working hours back and forth, seriously reducing the work efficiency. If the staff operates the retraction and extension of the escalator in the cab, their vision and viewing distance will be affected to a certain extent, which will increase their reaction time to handle emergencies, and even they may not be able to detect emergencies, resulting in serious accidents. Summary of the Invention

[0004] In view of this, the present invention provides an electric boarding and alighting escalator control system, which has an independent battery pack for power supply, does not need to rely on the engine to provide kinetic energy, is not restricted by the engine, and can still operate the escalator system when the engine is turned off or fails, which can ensure the smooth passage of personnel. At the same time, it can also effectively prevent the mining excavator from being misappropriated by unauthorized personnel.

[0005] To achieve the above object, the present invention provides the following technical solutions: An electric boarding and alighting escalator control system, comprising: an escalator platform, a sliding escalator, an electric winch, a battery pack, a wireless remote control and a control box.

[0006] Among them, an escalator track is provided on the escalator platform, and the sliding escalator is installed in the escalator track and can move up and down along the track; the electric winch is installed inside the escalator track and is transmission-connected to the sliding escalator, and the electric winch is used to drive the sliding escalator to move up and down; the battery pack is electrically connected to the electric winch, and the battery pack provides power for the electric winch; the electric winch, the battery pack and the wireless remote control are all connected to the control box signal, and the wireless remote control sends a start signal and a stop signal to the control box, and the control box controls the operation of the electric winch according to the signal.

[0007] Preferably, the electric escalator control system also includes a position sensor, which is installed on the escalator platform and is used to detect the position status of the sliding escalator in real time; the position sensor is connected to the control box signal, and the position sensor transmits the position status signal of the sliding escalator to the control box in real time.

[0008] Preferably, the control box is connected to the vehicle controller signal. When the control box receives a signal from the position sensor that the escalator is not in the specified position, the control box sends an abnormal sliding escalator position signal to the vehicle controller. The vehicle controller prohibits the vehicle engine from starting or limits the operation of the vehicle's slewing mechanism and walking function according to the abnormal signal.

[0009] Preferably, when the control box receives a signal from the position sensor that the sliding escalator is not at a designated position, the control box issues a system alarm prompt.

[0010] Preferably, the electric boarding and alighting escalator control system also includes an electric push rod, which is installed on the escalator platform and is signal-connected to the control box; when the sliding escalator moves to the top, the control box controls the electric push rod to extend so as to be inserted into the slot on the sliding escalator to lock the sliding escalator; when the sliding escalator starts to move downward, the control box controls the electric push rod to retract in advance to release the locking limit of the sliding escalator.

[0011] Preferably, the electric escalator control system further comprises a pull-cord switch, which is connected to the control box signal. When the pull-cord switch is turned on, the control box controls the battery pack to stop supplying power according to the on signal of the pull-cord switch.

[0012] Preferably, the battery pack is drivingly connected to the vehicle engine so that the battery pack is charged when the vehicle engine is operating.

[0013] Preferably, the electric boarding and alighting escalator control system further comprises an audible and visual warning light, and when the sliding escalator is controlled by the wireless remote controller, the audible and visual warning light operates to provide a warning reminder.

[0014] Preferably, handrails are provided on both sides of the escalator track and the sliding escalator.

[0015] The present invention also provides a mining excavator, including the electric up-and-down escalator control system disclosed in the above embodiments.

[0016] The beneficial effects of the present invention are as follows: Compared with the prior art, the electric up-and-down escalator control system disclosed in the present application is completely free from the limitation of the vehicle engine. The staff can realize the independent lifting of the up-and-down escalator by operating the wireless remote control. Even if the vehicle engine stalls or fails to start, the staff can still operate the up-and-down escalator to lift and lower normally, effectively ensuring the smooth passage of the staff. At the same time, when the operation is over and the engine shuts down normally, the staff can operate the escalator to retract normally after getting off the vehicle to prevent unauthorized personnel from climbing the equipment, effectively ensuring the safety of personnel and equipment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the electric up-and-down escalator control system of the present invention; Figure 2 is an exploded view of the electric up-and-down escalator control system of the present invention; Figure 3 is a schematic structural diagram of the mining excavator of the present invention; Figure 4 is a schematic diagram of the interlocking principle of each component of the present invention.

[0019] Reference Signs: 1, escalator platform; 2, sliding escalator; 3, electric winch; 4, position sensor; 5, electric push rod; 6, pull rope switch; 7, handrail; 8, mining excavator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation of the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Reference below Figures 1 to 4 The electric escalator control system in the embodiment of the present invention is described.

[0023] The embodiment of the present application discloses an electric escalator control system, comprising: an escalator platform 1, a sliding escalator 2, an electric winch 3, a battery pack, a wireless remote controller and a control box.

[0024] Among them, an escalator track is set on the escalator platform 1, and the sliding escalator 2 is installed in the escalator track and can move up and down along the track; the electric winch 3 is installed inside the escalator track and is transmission-connected to the sliding escalator 2, and the electric winch 3 is used to drive the sliding escalator 2 to move up and down; the battery pack is electrically connected to the electric winch 3, and the battery pack provides power for the electric winch 3; the electric winch 3, the battery pack and the wireless remote control are all connected to the control box signal, and the wireless remote control sends a start signal and a stop signal to the control box, and the control box controls the operation of the electric winch 3 according to the signal.

[0025] The boarding and alighting escalator in this embodiment is electrically driven by an independent battery pack, and the staff can remotely control the lifting and movement of the sliding escalator 2 through a wireless remote controller. The control box is a signal data processing center, which can receive the control signal of the wireless remote controller and send corresponding action instructions to the electric winch 3 according to the control signal, thereby realizing remote control of the lifting and lowering of the sliding escalator 2.

[0026] Compared with the escalators in the prior art that rely on the vehicle engine to provide power for lifting, the escalators in this embodiment are completely free from the limitations of the vehicle engine. The staff can realize the autonomous lifting of the escalator by operating the wireless remote control. Even if the vehicle engine is shut down or fails to start, the staff can still control the normal lifting of the escalator, effectively ensuring the smooth passage of the staff.

[0027] At the same time, when the operation is completed and the engine is shut down normally, the staff can control the escalator to retract normally after getting off the vehicle to prevent unrelated personnel from climbing the equipment, effectively ensuring the safety of personnel and equipment.

[0028] In addition, in this embodiment, the staff can wirelessly control the escalator to move up and down through a wireless remote controller. Therefore, the staff can control it at close range and monitor the entire process of the escalator's unfolding and retracting, enabling them to respond promptly and effectively to emergencies during the unfolding and retracting process, ensuring the safety of the equipment and the staff. At the same time, it can effectively improve work efficiency and reduce the ineffective time during the control process.

[0029] In some embodiments, the battery pack is drivingly connected to the vehicle engine, and when the vehicle engine is operating, it charges the battery pack.

[0030] In some embodiments, the electric escalator control system for getting on and off the vehicle further includes a position sensor 4. The position sensor 4 is installed on the escalator platform 1 and is used to detect the position state of the sliding escalator 2 in real time. The position sensor 4 is signal-connected to the control box, and the position sensor 4 transmits the position state signal of the sliding escalator 2 to the control box in real time.

[0031] The position sensor 4 can detect the position state of the current sliding escalator 2 in real time and transmit the position signal to the control box, so that the control box can timely judge the state of the current sliding escalator 2 and send corresponding action signals to the corresponding actuators according to the judgment result to ensure the stable lifting and lowering of the sliding escalator 2 and protect the safety of the staff.

[0032] In some embodiments, the control box is signal-connected to the vehicle controller. When the control box receives the signal that the position sensor 4 detects that the sliding escalator 2 is not in the specified position, the control box sends a signal of abnormal position of the sliding escalator 2 to the vehicle controller, and the vehicle controller prohibits the vehicle engine from starting or restricts the operation of the vehicle's slewing mechanism and traveling function according to the abnormal signal.

[0033] For example: when the position sensor 4 detects that the sliding escalator 2 is not fully retracted into place, it will transmit the corresponding signal that the sliding escalator 2 is not in the specified position to the control box. After receiving the corresponding signal, the control box judges that the position of the current sliding escalator 2 is abnormal, and it will send a signal of abnormal position of the sliding escalator 2 to the vehicle controller. The vehicle controller will prohibit the vehicle engine from starting according to the signal to prevent the sliding escalator 2 from slipping by itself during the vehicle's movement, causing injuries to surrounding personnel and damage to the sliding escalator 2.

[0034] When the sliding escalator 2 slides by itself during the vehicle's operation, the position sensor 4 will promptly transmit relevant position signals to the control box. Similarly, after the control box makes relevant judgments, it will send a signal of abnormal position of the sliding escalator 2 to the vehicle controller. At this time, the vehicle controller will restrict the operation of the vehicle's slewing mechanism and traveling function according to the signal to prevent the fallen sliding escalator 2 from causing harm to surrounding facilities, equipment, and personnel. At the same time, it also prevents the sliding escalator 2 from colliding with the vehicle body, effectively protecting the safety of the sliding escalator 2 and the vehicle.

[0035] In some embodiments, when the control box receives a signal from the position sensor 4 indicating that the escalator 2 is not in the designated position, the control box issues a system alarm prompt. For example, when the escalator 2 slides on its own during vehicle operation, the control box will issue a system alarm prompt in a timely manner after receiving the relevant signal to alert the relevant staff that the escalator 2 has malfunctioned.

[0036] In some embodiments, the electric escalator control system for boarding and alighting also includes an electric push rod 5. The electric push rod 5 is installed on the escalator platform 1 and is signal-connected to the control box. When the escalator 2 moves up to the top, the control box controls the electric push rod 5 to extend and insert into the slot on the escalator 2 to lock and limit the escalator 2. When the escalator 2 starts to move down, the control box controls the electric push rod 5 to retract in advance to release the locking and limiting of the escalator 2.

[0037] The electric push rod 5 can lock and limit the escalator 2 to prevent the escalator 2 from sliding down on its own during vehicle operation, effectively strengthening the safety protection of the escalator 2.

[0038] In some embodiments, the electric escalator control system for boarding and alighting also includes a pull cord switch 6. The pull cord switch 6 is signal-connected to the control box. When the pull cord switch 6 is turned on, the control box controls the battery pack to stop power supply according to the on signal of the pull cord switch 6.

[0039] When the staff gets on and off the vehicle through the escalator 2, if they find any abnormal movement of the escalator 2, they can pull the pull cord switch 6 to cut off the power supply of the escalator system emergently, thus avoiding dangerous accidents caused by the abnormal start of the electric hoist 3.

[0040] In some embodiments, the electric escalator control system for boarding and alighting also includes a sound and light warning lamp. When the escalator 2 is controlled by a wireless remote control, the sound and light warning lamp works for warning and reminding.

[0041] In some embodiments, handrails 7 are provided on both sides of the escalator track and the escalator 2 for the staff to hold when getting on and off the vehicle.

[0042] The following is a further supplementary description by describing the system working process during the boarding and alighting processes: System working during the alighting process: After the equipment operation is completed, the vehicle stops, the engine shuts down, and the staff leaves the cab and walks to the escalator platform 1. Before getting off the vehicle, the staff stands on the escalator platform 1. Press the unlocking button of the electric push rod 5 on the wireless remote control to unlock the mechanical limit of the electric push rod 5. Press the down button of the escalator 2 on the wireless remote control to control the escalator 2 to descend. Release the down button and the escalator 2 stops descending. The staff can pay full attention to the descending state of the escalator during the control of the descending process.

[0043] The sliding escalator 2 descends to the bottom, and the staff gets off the vehicle through the escalator. There is a pull cord switch 6 along the escalator. If the escalator moves abnormally during the process of climbing the escalator, the power supply of the escalator system can be emergently cut off by pulling the switch. After the staff gets off the vehicle, press the up button of the sliding escalator 2 on the wireless remote control, and the sliding escalator 2 starts to rise. Release the up button during the rising process, and the sliding escalator 2 stops rising. During the control of the rising process, the staff can pay attention to the rising state of the escalator throughout the whole process.

[0044] After the sliding escalator 2 reaches the position, press the locking button on the wireless remote control, the electric push rod 5 extends, and the escalator limit switch is locked to mechanically limit the escalator to prevent it from sliding down. During the operation of the escalator, the audible and visual warning lights work, and the buzzer sound and the flashing warning lights are used for warning and lifting. After the sliding escalator 2 reaches the position, the height from the ground is high enough to prevent unauthorized staff from climbing at will, ensuring the safety of the staff and the equipment.

[0045] The system works during the boarding process: Prepare to start working for boarding, and the staff arrives under the equipment. Press the unlock button on the wireless remote control, the electric push rod 5 contracts, and the mechanical limit of the sliding escalator 2 is opened. Press the down button of the sliding escalator 2 on the wireless remote control to control the sliding escalator 2 to descend. When the escalator descends to the bottom, the staff gets on the vehicle through the escalator. After getting on the vehicle, the staff stands on the escalator platform 1 on the upper part of the vehicle, presses the up button of the sliding escalator 2 on the wireless remote control to control the sliding escalator 2 to rise. After the sliding escalator 2 rises in place, press the lock button on the wireless remote control, and the electric push rod 5 extends to lock the mechanical limit of the escalator. Then the staff enters the cab and starts the engine for relevant work.

[0046] The present invention also provides a mining excavator 8, including the electric boarding and alighting escalator control system disclosed in the above embodiments. Therefore, the mining excavator 8 with this electric boarding and alighting escalator control system has all the above technical effects, which will not be elaborated one by one here.

[0047] For those of ordinary skill in the art, the other components and operations of the electric boarding and alighting escalator control system and the mining excavator according to the embodiments of the present invention are known, and will not be described in detail here.

[0048] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric escalator control system, characterized in that: include: Escalator platform, sliding escalator, electric winch, battery pack, wireless remote control and control box; The escalator platform is provided with an escalator track, and the sliding escalator is installed in the escalator track and can move up and down along the track; The electric winch is installed inside the escalator track and is in transmission connection with the sliding escalator, and the electric winch is used to drive the sliding escalator to move up and down; the battery pack is electrically connected to the electric winch, and the battery pack provides power for the electric winch; The electric winch, the battery pack and the wireless remote controller are all connected to the control box signal. The wireless remote controller sends a start signal and a stop signal to the control box, and the control box controls the operation of the electric winch according to the signal.

2. The electric escalator control system according to claim 1, characterized in that: It also includes a position sensor, which is installed on the escalator platform and is used to detect the position status of the sliding escalator in real time; the position sensor is connected to the control box signal, and the position sensor transmits the position status signal of the sliding escalator to the control box in real time.

3. The electric escalator control system according to claim 2, characterized in that: The control box is connected to the vehicle controller signal. When the control box receives a signal from the position sensor that the escalator is not in a specified position, the control box sends an abnormal position signal of the escalator to the vehicle controller. The vehicle controller prohibits the vehicle engine from starting or limits the operation of the vehicle's rotating mechanism and walking function according to the abnormal signal.

4. The electric escalator control system according to claim 3 is characterized in that: When the control box receives a signal from the position sensor that the sliding escalator is not at a designated position, the control box issues a system alarm prompt.

5. The electric escalator control system according to claim 2, characterized in that: It also includes an electric push rod, which is installed on the escalator platform and is connected to the control box by signal. When the sliding escalator moves to the top, the control box controls the electric push rod to extend so as to be inserted into the slot on the sliding escalator to lock the sliding escalator. When the sliding escalator starts to move downward, the control box controls the electric push rod to retract in advance to release the locking limit of the sliding escalator.

6. The electric escalator control system according to claim 1, characterized in that: It also includes a pull-rope switch, which is connected to the control box signal. When the pull-rope switch is turned on, the control box controls the battery pack to stop supplying power according to the turn-on signal of the pull-rope switch.

7. The electric escalator control system according to claim 1, characterized in that: The battery pack is drivingly connected to the vehicle engine, and when the vehicle engine is working, the battery pack is charged.

8. The electric escalator control system according to claim 1, characterized in that: It also includes an audible and visual warning light, which works to give a warning when the sliding escalator is controlled by the wireless remote controller.

9. The electric escalator control system according to claim 1, characterized in that: Handrails are arranged on both sides of the escalator track and the sliding escalator.

10. A mining excavator, characterized in that: An electric escalator control system comprising any one of claims 1 to 9.

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