Mobile handcart device based on remote control and operation method

Abstract

The invention discloses a mobile handcart device based on remote control, and the device comprises a mobile chassis (1) which is provided with a combination of trundles (11), a lifting platform (12), and an electric cabinet (13) used for controlling the lifting. The cross-shaped sliding table (2) is mounted on the movable chassis (1) and is used for realizing movement in the X-axis direction and the Y-axis direction; the handcart electric crank device (3) is arranged on the cross-shaped sliding table (2); and the remote control system (4) comprises a driver (41), a controller (42), a wireless communication module (43) and a remote control device (44), and is used for receiving a remote control instruction and controlling the operation of the handcart electric crank device (3). The invention further provides a corresponding operation method. According to the invention, the 10 kV switch cabinet can be operated in a remote control manner, and the operation efficiency and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply equipment operating tools, and in particular to a mobile trolley device based on remote control and an operating method. Background Art

[0002] At present, the operation of high-voltage switchgear trolleys is mainly divided into two modes: manual operation and electric operation. Manual operation relies on manual force, and the trolley switch is pulled out and pushed in by the crank. Operators are prone to the phenomenon of loose cranks or poor dragging during operation, which increases the difficulty of operation and safety risks. Electric operation realizes automatic operation through electric chassis and electric transmission devices, but this method is mainly used in new sites. Early equipment is still mostly manually operated equipment, and comprehensive electrification transformation faces high costs and technical complexity.

[0003] In order to solve this problem, reduce the risk of manual operation, and reduce the cost of electrification transformation, this paper proposes a design scheme for a 10kV switch cabinet mobile trolley based on remote control. Through electrification and intelligent transformation, the function of remote operation of the trolley switch is realized, which greatly improves the safety and convenience of operation, and also reduces the economic burden of large-scale transformation.

[0004] The disadvantages of the prior art are as follows:

[0005] (1) The existing manual operation method relies on manually shaking the crank to move the switch cabinet trolley from the operating position to the test position or vice versa. Due to the heavy workload, especially in the power outage operation, the operation intervals are many and the time is long, which can easily lead to low work efficiency and may even delay power supply.

[0006] (2) Manual operation may cause loose cranks and mops, which may cause unsmooth operation and increase the risk of operation. In addition, there are many manual interventions, especially in high-pressure environments, which poses a great safety hazard.

[0007] (3) Although electric operation can improve efficiency and safety, this function is mainly used in newly built sites. It is expensive, complicated and difficult to carry out comprehensive electric transformation of early equipment. The present invention aims to provide a mobile trolley device based on remote control to address the shortcomings of the prior art. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a mobile trolley device and an operation method based on remote control, which can operate a 10kV switch cabinet by remote control to improve operating efficiency and safety.

[0009] In order to solve the above technical problems, as a first aspect of the present invention, a mobile trolley device based on remote control is provided, which is characterized by comprising:

[0010] A mobile chassis having a caster assembly, a lifting platform and an electric control box for controlling the lifting;

[0011] The cross slide, mounted on a mobile chassis, can move in the X-axis and Y-axis directions, including a linear guide and lead screw system;

[0012] The electric crank device of the trolley is installed on the cross slide, including a special sleeve for the trolley, a transmission shaft and a motor;

[0013] The remote control system includes a driver, a controller, a wireless communication module and a remote control device, which is used to receive remote control instructions and control the operation of the electric crank device of the handcart.

[0014] Preferably, the mobile chassis also includes a hydraulic joystick and a foldable push handle to facilitate the operation and control of the movement of the equipment.

[0015] Preferably, the cross slide also includes an X-axis handwheel and a Y-axis handwheel for manually adjusting the position of the slide.

[0016] Preferably, the wireless communication module of the remote control system adopts wireless local area network, Bluetooth or radio frequency communication technology to achieve communication between the remote control device and the controller.

[0017] Preferably, the motor of the trolley electric crank device operates in torque mode, outputs a fixed torque value, and the motor speed is adjusted as required. The controller monitors the motor torque during the trolley switch operation in real time, and automatically locks and sends a warning signal when the torque exceeds the limit.

[0018] As another aspect of the present invention, there is also provided an operation method of a 10kV switch cabinet mobile trolley device, which is implemented by using the aforementioned device and is characterized in that it comprises the following steps:

[0019] Push the mobile trolley device under the switch cabinet and lock the casters;

[0020] Adjust the cross slide to the same height as the trolley switch through the lifting platform;

[0021] Use the X-axis handwheel and / or the Y-axis handwheel to adjust the cross slide so that the trolley special sleeve is aligned with the trolley switch;

[0022] Adjust the sleeve angle and use the Y-axis hand wheel (24) to make the sleeve extend forward and engage with the trolley switch;

[0023] Sending operation instructions to the remote control system via the remote control device;

[0024] After receiving the command, the remote control system controls the motor through the driver to drive the electric crank device of the trolley to swing the trolley switch in or out.

[0025] Preferably, the method further comprises the steps of automatically locking the electric crank handle device of the trolley and sending out a warning signal when an abnormal situation occurs during operation, and re-operating after troubleshooting.

[0026] Preferably, the method further comprises the step of monitoring the working state of the electric crank device of the trolley through the upper computer interface so as to timely discover and handle abnormal situations.

[0027] Preferably, before adjusting the position of the cross slide, the method further includes a step of instructing the user to put on insulating gloves.

[0028] Preferably, before sending the operating instruction, the method further includes a step of instructing the operator to leave the site to a safe distance.

[0029] The implementation of the embodiments of the present invention has the following beneficial effects:

[0030] The present invention provides a mobile trolley device and operation method based on remote control. Through electrification and intelligent transformation, remote control operation of the trolley switch is realized, manual intervention is reduced, the operation is more convenient and efficient, the operation time is shortened, and the efficiency of power transmission and maintenance work is improved; the remote operation system reduces the opportunity for personnel to directly contact high-voltage equipment and reduces personal risks.

[0031] At the same time, through the design of the cross slide, the position of the electric crank device of the trolley can be accurately adjusted to ensure accurate alignment with the trolley switch, thereby improving the accuracy and reliability of the operation. At the same time, the controller communicates with the driver in real time to read the speed and torque value of the motor, monitor the movement state of the motor during the operation, and prevent operation failure or equipment damage caused by mechanism jamming or incorrect position.

[0032] The present invention realizes the electric operation function at a relatively low cost by intelligently transforming the existing trolley crank system, without the need for large-scale replacement of equipment, and is suitable for the transformation of new and old equipment, and has good economy.

[0033] In summary, the technical solution provided by the present invention effectively solves the problems existing in the traditional trolley operation mode through electrification and intelligent transformation, improves the operating efficiency, safety and economy, and provides a more reliable and efficient solution for the trolley operation of 10kV switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0035] Figure 1 A schematic structural diagram of a perspective of an embodiment of a mobile trolley device based on remote control provided by the present invention;

[0036] Figure 2 A schematic structural diagram of a mobile trolley device based on remote control provided by the present invention from another angle;

[0037] Figure 3 for Figure 1 The structural diagram of the cross slide in FIG.

[0038] Figure 4 for Figure 1 A schematic diagram of the structure of the electric crank device;

[0039] Figure 5 A structural block diagram of a remote control system for a mobile trolley device based on remote control provided by the present invention.

[0040] Among them: 1. Mobile chassis; 11. Casters; 12. Lifting platform; 13. Electric control box; 14. Fault indicator light; 15. Operation indicator light; 16. Start switch; 17. Emergency stop button; 18. Hydraulic joystick; 19. Foldable push handle; 2. Cross slide; 21. X-axis handwheel; 22. Screw system; 23. Linear guide; 24. Y-axis handwheel; 3. Electric crank device of trolley; 31. Special sleeve for trolley; 32. Drive shaft; 33. Reducer; 34. Motor; 4. Remote control system of trolley; 41. Driver; 42. Controller; 43. Wireless communication module; 44. Remote control device. DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 1 FIG. 1 is a schematic diagram showing a perspective structure of an embodiment of a mobile trolley device based on remote control provided by the present invention; and FIG. Figures 2 to 3 As shown, in this embodiment, the mobile trolley device includes a mobile chassis 1, a cross slide 2, a trolley electric crank device 3 and a remote control system 4.

[0043] The structure of the mobile chassis mainly includes a caster wheel 11 and a lifting platform 12. Figure 1 and Figure 2 The caster 11 combination uses two fixed casters and two universal casters to ensure that the equipment has flexible mobility and is suitable for various working occasions.

[0044] A hydraulic joystick 18 and a foldable handle 19 are designed at the rear of the chassis. The foldable handle 19 allows the operator to easily push and pull the trolley, thereby improving the convenience of operation. In addition, the lifting platform 12 is integrated into the chassis and uses a hydraulic system for height adjustment. The operator controls the hydraulic system to adjust the cylinder through the hydraulic joystick 18 installed at the rear of the trolley to achieve the up and down movement of the table top. In a specific example, the table top size of the chassis is 70 cm long and 45 cm wide, and the maximum height of the platform from the ground is 0.72 meters. The height can be flexibly adjusted to meet the trolley switch operation requirements of different equipment. The design of the lifting mechanism ensures the stability and safety of the equipment during use, and effectively prevents tilting or instability.

[0045] The structure of the cross slide 2 is as follows Figure 3 As shown, the bottom base plate is connected to the mobile chassis by bolts. The cross is mainly composed of two mutually perpendicular sliding platforms to achieve bidirectional movement of the X-axis and Y-axis. It includes an X-axis handwheel 21 and a Y-axis handwheel 24. Specifically, a linear guide rail 23 and a lead screw 22 system are installed on the bottom base plate to support and guide the lower sliding platform to move along the X-axis direction. The upper sliding platform is installed on the lower sliding platform, and the movement along the Y-axis direction is also achieved through the guide rail and lead screw system. The movement of each axis is controlled by the rotation of the lead screw of the X-axis handwheel 21 and the Y-axis handwheel 24, and the lead screw drives the slider to move smoothly along the guide rail. The entire structure can use aluminum alloy materials as the base and sliding platform to maintain light weight and sufficient strength; the guide rail and lead screw are made of stainless steel to provide high precision and wear resistance; the handwheel is made of engineering plastics or aluminum alloy to ensure comfortable operation and durability.

[0046] The electric crank device 3 of the trolley is mounted on the cross slide 2, and the overall structure forms a high-precision, controllable mechanical device. The cross slide provides bidirectional movement in the X-axis and Y-axis directions, allowing the motor transmission device to be flexibly positioned in a two-dimensional plane. The motor transmission device accurately aligns and operates the trolley switch through the movement of the slide. The motor drives the transmission shaft to operate the trolley switch through the sleeve 31 at the front end.

[0047] The remote control system 4 includes a driver 41, a controller 42, a wireless communication module 43 and a remote control device 44. Among them, the controller 42 is located in the center of the system, serving as a core control unit to coordinate the operation of each component. The controller 42 communicates bidirectionally with the driver 41 and the wireless communication module 43 via the RS485 bus, and the controller 42 receives operation instructions such as "shake in" or "shake out" from the remote control device 44 via the wireless communication module 43. The driver 41 is connected between the controller 42 and the motor 34, and is responsible for receiving instructions from the controller 42 and sending control signals to the motor 34 to drive the motor 34 to work. The driver 41 ensures that the motor 34 operates in a specified torque mode and controls the sleeve 31 of the electric crank device 3 to "shake in" or "shake out" according to the specified torque. The operator can remotely control the operation of the electric device of the trolley through the remote control device 44 to ensure safe operation away from high-voltage equipment.

[0048] Accordingly, another aspect of the present invention also provides an operation method using a mobile trolley device based on remote control, which adopts Figures 1 to 5 The described device is implemented, which comprises the following steps:

[0049] Push the mobile trolley device under the switch cabinet and lock the casters 11;

[0050] Adjust the cross slide 2 to the same height as the trolley switch through the lifting platform 12;

[0051] Use the X-axis handwheel 21 and / or the Y-axis handwheel 24 to adjust the cross slide 2 so that the trolley special sleeve 31 is aligned with the trolley switch;

[0052] Adjust the sleeve angle and use the Y-axis hand wheel 24 to extend the sleeve forward and engage with the trolley switch;

[0053] Sending operation instructions to the remote control system 4 via the remote control device 44;

[0054] After receiving the command, the remote control system 4 controls the motor 34 through the driver 41 to drive the electric crank device 3 of the trolley to perform the swing-in or swing-out operation of the trolley switch.

[0055] The method further includes the steps of automatically locking the electric crank handle device 3 of the trolley and sending out a warning signal when an abnormal situation occurs during operation, and re-operating after troubleshooting.

[0056] The method also includes monitoring the working state of the electric crank device 3 of the trolley through the upper computer interface so as to timely discover and handle abnormal situations.

[0057] In the method, before adjusting the position of the cross slide 2, the method also includes a step of instructing the operator to wear insulating gloves.

[0058] In the method, before sending the operating instruction, it also includes a step of instructing the operator to leave the scene to a safe distance.

[0059] The following is a specific application example to illustrate the use of the device provided by the present invention.

[0060] When the line is out of power, first turn on the power of this device, and the operator disconnects the trolley switch of the high-voltage switch cabinet at the remote end, and then pushes the foldable handle 19 to go to the site. First, push the mobile trolley to the bottom of the switch cabinet, and lock the four wheels by operating the brake device on each caster 11; use the lifting platform 12 to raise the cross slide 2 to the same level as the trolley switch. Then, the operator puts on insulating gloves, holds the handwheels 21 and 24, and controls the cross slide to move in the XY direction to ensure that the trolley special sleeve 31 is aligned with the trolley switch. After confirmation, the operator leaves the site, presses the "shake out" button on the remote control device outdoors, remotely starts the trolley switch control device, and performs the shake-out operation of the trolley switch. The operator can monitor the working status through the host computer interface.

[0061] When the line is energized, the operator confirms at a remote location that the high-voltage switch cabinet trolley switch is in the open position, and then arrives at the site. The mobile trolley is pushed under the switch cabinet, and the cross slide is adjusted to the same height as the trolley switch through the lifting platform 12. The operator wears insulating gloves, controls the XY movement of the cross slide through the hand wheels 21 and 24, and accurately aligns the special sleeve 31 with the trolley switch. After alignment, the operator leaves the site, presses the "rock-in" button on the remote control device outdoors, remotely starts the trolley switch control device, and performs the rock-in operation.

[0062] If mechanical locking, electrical locking, incorrect trolley position or mechanism jamming occurs during operation, the resistance torque of the trolley connecting rod will greatly exceed the normal value. At this time, the trolley electric crank device 3 will automatically lock and send a warning signal to the host computer. The operator needs to deal with the fault before re-operating.

[0063] The implementation of the embodiments of the present invention has the following beneficial effects:

[0064] The present invention provides a mobile trolley device and operation method based on remote control. Through electrification and intelligent transformation, remote control operation of the trolley switch is realized, manual intervention is reduced, the operation is more convenient and efficient, the operation time is shortened, and the efficiency of power transmission and maintenance work is improved; the remote operation system reduces the opportunity for personnel to directly contact high-voltage equipment and reduces personal risks.

[0065] At the same time, through the design of the cross slide, the position of the electric crank device of the trolley can be accurately adjusted to ensure accurate alignment with the trolley switch, thereby improving the accuracy and reliability of the operation. At the same time, the motor of the electric crank device of the trolley works in the torque mode, and the motor torque is monitored during the operation of the trolley switch. When the torque exceeds the limit, it automatically locks and sends a warning signal to prevent operation failure or equipment damage caused by mechanism jamming or incorrect position.

[0066] The present invention realizes the electric operation function at a relatively low cost by intelligently transforming the existing trolley crank system, without the need for large-scale replacement of equipment, and is suitable for the transformation of new and old equipment, and has good economy.

[0067] In summary, the technical solution provided by the present invention effectively solves the problems existing in the traditional trolley operation mode through electrification and intelligent transformation, improves the operating efficiency, safety and economy, and provides a more reliable and efficient solution for the trolley operation of 10kV switch cabinet.

[0068] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0069] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0070] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A mobile trolley device based on remote control, characterized in that: include: A mobile chassis (1) having a caster (11) assembly, a lifting platform (12) and an electric control box (13) for controlling the lifting; A cross slide (2) is mounted on the mobile chassis (1) and is used to achieve movement in the X-axis and Y-axis directions, and includes a linear guide rail (23) and a lead screw (22) system; The electric crank device (3) for the trolley is installed on the cross slide (2), and comprises a sleeve (31) for the trolley, a transmission shaft (32), a speed reducer (33) and a motor (34); The remote control system (4) comprises a driver (41), a controller (42), a wireless communication module (43) and a remote control device (44), and is used for receiving remote control instructions and controlling the operation of the electric cranking handle device (3) of a handcart.

2. The device according to claim 1, characterized in that The mobile chassis (1) also includes a hydraulic joystick (18) and a foldable push handle (19) to facilitate the operation and control of the movement of the equipment.

3. The device according to claim 2, characterized in that The cross slide (2) also includes an X-axis hand wheel (21) and a Y-axis hand wheel (24) for manually adjusting the position of the slide.

4. The device according to claim 3, characterized in that The wireless communication module (43) of the remote control system (4) adopts wireless local area network, Bluetooth or radio frequency communication technology to realize communication between the remote control device (44) and the controller (42).

5. The device according to claim 4, characterized in that The motor of the trolley electric crank device (3) operates in a torque mode and outputs a fixed torque value. The motor speed can be adjusted according to requirements. The controller monitors the motor torque during the trolley switch operation in real time and automatically locks and issues a warning signal when the torque exceeds the limit.

6. A method for operating a mobile trolley device based on remote control, which is implemented by using the device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Push the mobile trolley device under the switch cabinet and lock the casters (11); The cross slide (2) is adjusted to a position at the same height as the trolley switch by means of the lifting platform (12); Use the X-axis hand wheel (21) and / or the Y-axis hand wheel (24) to adjust the cross slide (2) so that the trolley special sleeve (31) is aligned with the trolley switch; Using the Y-axis hand wheel (24) to engage the sleeve with the trolley switch; Sending an operation instruction to the remote control system (4) via a remote control device (44); After receiving the command, the remote control system (4) controls the motor (34) through the driver (41) to drive the electric crank device (3) of the trolley to perform the swing-in or swing-out operation of the trolley switch.

7. The operating method according to claim 6, characterized in that: The method also includes the steps of automatically locking the electric crank handle device (3) of the trolley and sending out a warning signal when an abnormal situation occurs during operation, and re-operating after troubleshooting.

8. The operating method according to claim 7, characterized in that: The method also includes the step of monitoring the working state of the electric cranking handle device (3) of the trolley through the upper computer interface so as to timely discover and handle abnormal situations.

9. The operating method according to claim 8, characterized in that: Before adjusting the position of the cross slide (2), the method also includes a step of instructing the user to put on insulating gloves.

10. The operating method according to claim 9, characterized in that: Before sending the operating instructions, it also includes a step of instructing the operator to leave the scene to a safe distance.

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