Maintenance device

Abstract

The utility model discloses a maintenance device, which is applied to a construction platform and comprises a maintenance module, a safety module and a power supply module, the power supply module is respectively connected with the maintenance module, the weighing control box, the platform control box and the crane control box; the maintenance module is respectively connected with the safety module, the weighing control box, the platform control box and the crane control box; wherein the maintenance module is provided with an identification unit and a detection unit, the identification unit is a programmable logic controller, and the detection unit comprises an uplink relay and a downlink relay; wherein the maintenance module is provided with an identification unit and a detection unit, and the identification unit is a programmable logic controller; the detection unit comprises an uplink relay and a downlink relay. The maintenance device automatically identifies the corresponding control boxes and detects the operation conditions of different control boxes through the maintenance module, manual one-by-one inspection is not needed, the maintenance period is greatly shortened, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit maintenance, and particularly relates to a maintenance device. BACKGROUND

[0002] On the construction platform, various equipment such as weighing devices, platforms themselves and cranes are running under complex working conditions, facing challenges such as load changes and variable operating conditions. The traditional maintenance method often needs to check the operating conditions of the equipment one by one manually. This method is not only inefficient, but also difficult to accurately determine whether the equipment has hidden faults in the face of complex equipment and variable working conditions. In addition, the working environment of the equipment on the construction platform is relatively harsh, and equipment failure may cause serious safety hazards and economic losses, so a maintenance device is needed that can accurately detect the operating conditions of the equipment and alarm in time when a fault occurs. SUMMARY

[0003] In order to overcome the lack of detection function of different equipment on the construction platform under various working conditions in the existing maintenance electrical box, the utility model provides a maintenance device.

[0004] In order to solve the above problems, the utility model is implemented according to the following technical scheme:

[0005] The utility model relates to a maintenance device applied to a construction platform, wherein the construction platform comprises a weighing control box, a platform control box and a crane control box, and the maintenance device comprises a maintenance module, a safety module and a power module; the power module is connected to the maintenance module, the weighing control box, the platform control box and the crane control box; the maintenance module is connected to the safety module, the weighing control box, the platform control box and the crane control box; wherein the maintenance module has an identification unit and a detection unit, the identification unit is a programmable logic controller, and the detection unit comprises an uplink relay and a downlink relay; one end of the uplink relay is connected to a signal output port Y1 of the programmable logic controller, the other end of the uplink relay is connected to one end of the downlink relay, and the other end of the downlink relay is connected to a signal output port Y2 of the programmable logic controller, so as to realize the function operating condition detection of the weighing control box, the platform control box and the crane control box.

[0006] Preferably, the maintenance module further comprises a start button, a control box emergency stop, an automatic operation button, an up button, a down button and a power contactor switch; the start button, the control box emergency stop button, the automatic operation button, the up button and the down button are connected in parallel; one end of the start button is connected to the signal input port X0 of the programmable logic controller, and the other end of the start button is connected to the common end COM of the programmable logic controller; one end of the control box emergency stop button is connected to the signal input port X1 of the programmable logic controller, and the other end of the control box emergency stop button is connected to the common end COM of the programmable logic controller; one end of the automatic operation button is connected to the signal input port X2 of the programmable logic controller, and the other end of the automatic operation button is connected to the common end COM of the programmable logic controller; one end of the up button is connected to the signal input port X3 of the programmable logic controller, and the other end of the up button is connected to the common end COM of the programmable logic controller; one end of the down button is connected to the signal input port X4 of the programmable logic controller, and the other end of the down button is connected to the common end COM of the programmable logic controller; one end of the power contactor switch is connected to the signal input port X5 of the programmable logic controller, and the other end of the power contactor switch is connected to the common end COM of the programmable logic controller.

[0007] Preferably, the safety module comprises an audible and visual alarm unit and a fault isolation unit; the audible and visual alarm unit is used to prompt equipment failure through sound signals and flashing lights; the fault isolation unit is linked with the maintenance module and automatically cuts off the power supply link of the corresponding control box when a serious fault is detected.

[0008] Preferably, the power module comprises a first power module and a rectifier module; the rectifier module is connected to the first power module, and the rectifier module is used to convert the city input power into the power used by the programmable logic controller.

[0009] Preferably, the audible and visual alarm unit comprises a running light and a parking light; one end of the running light is connected to one end of the up relay, and the other end of the running light is connected to the signal output port Y3 of the programmable logic controller; one end of the parking light is connected to one end of the up relay, and the other end of the running light is connected to the signal output port Y4 of the programmable logic controller.

[0010] Preferably, the fault isolation unit comprises a safety relay and a safety relay switch; one end of the safety relay is connected with an output port Y0 of the programmable logic controller, and the other end of the safety relay is connected with the other end of the downward relay; one end of the safety relay switch is connected with a COM end of the programmable logic controller, and the other end of the safety relay switch is connected with an input port X6 of the programmable logic controller.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The maintenance device can automatically identify the type of the connected equipment and detect the running conditions of the corresponding equipment under different working conditions through the connection of the maintenance module with the weighing control box, the platform control box or the crane control box, so that the maintenance efficiency is greatly improved, and the time and workload of manual detection are reduced. The safety module is connected with the maintenance module, can timely send out an alarm when the equipment on the construction platform fails, and can effectively guarantee the personal safety of the construction personnel and the normal operation of the construction platform. Through the detection of the running conditions of the key equipment such as the weighing device, the platform and the crane under different loads and operating conditions, potential problems of the equipment can be found in time, maintenance and repair can be carried out in advance, and the running reliability and service life of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The specific embodiments of the utility model will be further described in detail below in combination with the drawings, in which:

[0014] Figure 1 It is a circuit principle diagram of a maintenance device of the utility model.

[0015] Figure 2 It is a first power module circuit diagram of a maintenance device of the utility model.

[0016] Figure 3 It is an installation schematic view of a maintenance device, a weighing control box, a platform control box and a crane control box of the utility model.

[0017] Figure 4 It is a circuit block diagram of a maintenance device of the utility model.

[0018] In the figure: 1-power module; 101-first power module; 102-rectifier module;

[0019] 2-maintenance module;

[0020] 3-safety module;

[0021] 4-weighing control box;

[0022] 5-platform control box;

[0023] 6- Crane control box. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] like Figures 1-4 As shown, this utility model discloses a preferred structure of a maintenance device. Example

[0026] like Figures 1-4 As shown, the maintenance device of this utility model includes a maintenance module 2, a safety module 3, and a power module 1. The power module 1 is connected to the maintenance module 2, the weighing control box 4, the platform control box 5, and the crane control box 6, respectively, to supply power to the device. The maintenance module is connected to the safety module 3, the weighing control box 4, the platform control box 5, and the crane control box 6, respectively. The maintenance module has an identification unit and a detection unit. The identification unit is a programmable logic controller (PLC). The detection unit includes an up-row relay and a down-row relay. One end of the up-row relay is connected to the signal output port Y1 of the PLC, and the other end of the up-row relay is connected to one end of the down-row relay. The other end of the down-row relay is connected to the signal output port Y2 of the PLC, so as to realize the detection of the weighing control box 4, the platform control box 5, and the crane control box 6.

[0027] In detail, power module 1 provides reliable power to maintenance module 2, weighing control box 4, platform control box 5, crane control box 6, weighing devices, platform, and crane. When the identification unit detects that a device on the construction platform is operating, it identifies which of the three control boxes (weighing control box 4, platform control box 5, and crane control box 6) the device is based on the corresponding signal output by that device, and monitors its operating status. Safety module 3 is connected to maintenance module 2. When maintenance module detects equipment failure or abnormality, it transmits relevant signals to safety module 3. Upon receiving these signals, safety module takes corresponding measures according to preset safety strategies, such as emergency shutdown and alarm issuance, to prevent further escalation of the fault and ensure the safety of the construction platform.

[0028] In practical applications, assuming that the weighing device of the construction platform fails, the detection unit of the maintenance module 2 will immediately detect this abnormal situation and transmit the signal to the programmable logic controller. After analysis, the programmable logic controller confirms the existence of the fault, and immediately controls the corresponding relay to act through the signal output port Y1 or Y2, stops the operation of the faulty component, and transmits the fault information to the safety module. After receiving the fault information, the safety module will immediately trigger the safety mechanism, such as cutting off the power supply of the related equipment, locking the operating mechanism, etc., to prevent the fault from expanding, and at the same time, an alarm is issued to notify the maintenance personnel to carry out maintenance.

[0029] The power module 1 is used to supply power to the maintenance device, and the power module 1 provides stable power supply for the entire maintenance device, ensuring that each module can operate normally. It includes a first power module 101 and a rectifier module 102, and the rectifier module 102 converts the input of the mains into the required DC power of the device to adapt to the power supply requirements of the equipment, wherein the first power module 101 has an overvoltage protection function to ensure the safe operation of the device under abnormal voltage conditions.

[0030] As shown in Figure 3 The maintenance module 2 is connected to the weighing control box, the platform control box and the crane control box respectively, and has identification and detection functions. When the maintenance module 2 identifies that the equipment connected to the maintenance module 2 is the weighing control box 4, the maintenance module 2 detects the running status of the weighing device controlled by the weighing control box 4 under different loads. When the maintenance module 2 identifies that the equipment connected to the maintenance module 2 is the weighing control box 4, the power supply of the weighing control box 4 is first detected, and then whether the signal output by the weighing device is normal and the running status of the weighing device under different loads is detected. Finally, it is detected whether the hoisting weight is overloaded, whether the detection module 2 can alarm in time and stop the corresponding operation. When the maintenance module 2 identifies that the equipment connected to the maintenance module 2 is the platform control box 5, the maintenance module 2 detects the running status of the platform controlled by the platform control box 5 under different loads and positions.

[0031] In detail, when the maintenance module 2 identifies that the equipment connected to the maintenance module 2 is the platform control box 5, the power input of the platform control box 5 is first detected to ensure the stability of the voltage; then the detection of the platform control signal by the platform control box 5 is detected, such as whether the control signal of the lifting, translation, etc. of the platform is normal, to ensure the smooth running of the platform under different positions and speeds. Finally, the running status of the platform under different loads and positions is detected, such as whether the limit switch, overload protection, etc. of the platform are normal; ensure that the platform can automatically stop under abnormal conditions to prevent accidents.

[0032] When the maintenance module 2 identifies that the device connected by the maintenance module 2 is the crane control box 6, the maintenance module 2 detects the operation of the crane controlled by the crane control box 6 under different loads and operating conditions.

[0033] In detail, when the maintenance module 2 identifies that the device connected by the maintenance module 2 is the crane control box 6, the power input of the crane control box 6 is first detected to ensure the stability of the voltage; then the detection of the crane control signal by the crane control box 6 is detected, such as the lifting, lowering, rotating and other operation signals of the crane, to ensure the accurate response of the crane under different operating modes; finally, the operation of the crane under different loads and operating conditions is detected, such as whether the overload protection, limit protection and other functions of the crane are normal, to ensure that the crane can automatically stop under abnormal conditions to prevent equipment damage and safety accidents.

[0034] Specifically, the maintenance module 2 is the core part of the maintenance device, responsible for identifying the currently detected control box and detecting its operation. The centralized control and monitoring of the weighing control box, the platform control box and the crane control box are realized through the programmable logic controller (PLC). A number of function buttons are used to input operation instructions, and a number of function relays and switches are used to control the on-off of the circuit and the transmission of signals, thereby realizing the detection and control functions of different control boxes.

[0035] The safety module 3 is connected to the maintenance module 2, and the safety module 3 is used for fault alarm of the equipment on the construction platform.

[0036] Specifically, the safety module 3 ensures that the equipment on the construction platform can alarm in time when a fault occurs, ensuring construction safety. It includes an audible and visual alarm unit and a fault isolation unit. The audible and visual alarm unit prompts the equipment failure through sound signals and flashing lights, so that the construction personnel can quickly perceive and take appropriate measures; the fault isolation unit is linked with the maintenance module, and automatically cuts off the power supply link of the corresponding control box when a serious fault is detected, preventing the fault from expanding and protecting the equipment and personnel safety.

[0037] As shown in Figure 1 The maintenance module includes a programmable logic controller, a number of function buttons, a number of function relays and a number of switches; the number of function buttons are connected in parallel, and the number of function buttons are respectively connected to the input ports of the programmable logic controller; the number of function relays are respectively connected to the output ports of the programmable logic controller through the number of switches, and the number of function relays are used to control the on-off of the circuit and the transmission of signals, thereby realizing the detection and control functions of different control boxes.

[0038] In detail, the maintenance module 3 includes a programmable logic controller, a start button, a control box emergency stop, an automatic operation button, an up button, a down button and a power contactor switch; the start button, the control box emergency stop button, the automatic operation button, the up button and the down button are connected in parallel, one end of the start button is connected to the signal input port X0 of the programmable logic controller, the other end of the start button is connected to the common end COM of the programmable logic controller; one end of the control box emergency stop button is connected to the signal input port X1 of the programmable logic controller, the other end of the control box emergency stop button is connected to the common end COM of the programmable logic controller; one end of the automatic operation button is connected to the signal input port X2 of the programmable logic controller, the other end of the automatic operation button is connected to the common end COM of the programmable logic controller; one end of the up button is connected to the signal input port X3 of the programmable logic controller, the other end of the up button is connected to the common end COM of the programmable logic controller; one end of the down button is connected to the signal input port X4 of the programmable logic controller, the other end of the down button is connected to the common end COM of the programmable logic controller; one end of the power contactor switch is connected to the signal input port X5 of the programmable logic controller, the other end of the power contactor switch is connected to the common end COM of the programmable logic controller.

[0039] The safety module 3 includes an audible and visual alarm unit and a fault isolation unit; the audible and visual alarm unit is used to prompt device failure through sound signals and flashing lights; the fault isolation unit is linked with the maintenance module and automatically cuts off the power supply link of the corresponding control box when a serious fault is detected.

[0040] As shown in Figure 1 The power module 1 includes a first power module 101 and a rectifier module 102; the rectifier module 102 is connected to the first power module 101, the rectifier module 101 is used to convert the input power into a power source that can be used by the programmable logic controller, and the first current module 102 supplies power to the detection device; the rectifier module converts high-voltage alternating current into low-voltage direct current.

[0041] As shown in Figure 2 After the input of the commercial power, the first power module 101 is used to perform preliminary power processing and voltage stabilization to ensure the stability of the input power. Subsequently, the power enters the rectifier module 102, which converts alternating current into direct current to provide the required direct current power for other modules of the maintenance device. This design enables the maintenance device to work stably in different voltage levels and frequency environments of commercial power, and adapts to various power conditions in industrial sites.

[0042] In detail, the power module includes a first power module 101 and a rectifier module 102; the first power module 101 includes a power input, a power switch and a power contactor; the power input is composed of L1, L2, L3, which are three-phase power input live lines and zero line N1, and is connected to the input end of the power switch, the output end W of the power switch and the output end N of the power switch are both connected to the rectifier module, and the power contactor is connected to the output end V of the power switch and the output end U of the power switch. The rectifier module 102 includes a fuse, a switching power supply and a power indicator; the fuse is connected to the switching power supply; the power indicator is connected to the switching power supply and the power supply port of the programmable logic controller. The fuse is used in series in the circuit for overcurrent protection, and when the current in the circuit exceeds the rated current of the fuse, the fuse is fused, the circuit is cut off, and other electrical elements are protected from damage.

[0043] Further, the power switch uses a fuse as a switch, which can prevent circuit overload and short circuit protection, prevent the circuit breaker from tripping automatically when the circuit is overloaded or short-circuited, cut off the power supply, and ensure the safety of the circuit and the equipment. The power contactor can realize remote control of the detection device circuit by controlling the on-off of the coil. When the coil is powered on, the main contact of the contactor is closed, and the main circuit is turned on; when the coil is powered off, the main contact is opened, and the detection device circuit is cut off. This control method is safe and easy to realize automatic control. The power contactor usually has an overload protection function. When the current in the circuit exceeds the set value, the contactor will automatically open, protecting the equipment and personnel in the circuit. In addition, the contactor cooperates with relays, fuses and the like to realize more perfect circuit protection. The power contactor can also control the weighing control box, platform control box and crane control box in the circuit to control the start and stop of the motor of the device, and can also realize remote start and stop of the motor by controlling the coil of the contactor, improving the convenience and safety of operation. The switching current converts the three-phase power input alternating current into direct current, and outputs 24V to power the programmable logic controller and other modules of the maintenance device.

[0044] Preferably, the acousto-optic alarm unit includes a running light and a parking light; the running light is connected in parallel with the parking light; one end of the running light is connected to one end of the uplink relay, and the other end of the running light is connected to the signal output port Y3 of the programmable logic controller; one end of the parking light is connected to one end of the uplink relay, and the other end of the running light is connected to the signal output port Y4 of the programmable logic controller.

[0045] Preferably, the fault isolation unit comprises a safety relay and a safety relay switch; one end of the safety relay is connected to an output port Y0 of the programmable logic controller, and the other end of the safety relay is connected to the other end of the downward relay; one end of the safety relay switch is connected to a COM end of the programmable logic controller, and the other end of the safety relay switch is connected to an input port X6 of the programmable logic controller.

[0046] Specifically, the audible and visual alarm unit in the safety module 3 is connected with the maintenance module, when the maintenance module 2 detects that the control box has a fault, a signal will be sent to the audible and visual alarm unit to trigger the running light and the parking light to flash, and a sound alarm is also sent to remind the construction personnel to pay attention to the equipment fault. The safety relay in the fault isolation unit is connected with the output port of the PLC, when a serious fault is detected, the PLC will immediately send a signal to the safety relay, the safety relay acts to automatically cut off the power supply link of the corresponding control box to prevent the fault from further expanding, and the safety of the equipment and personnel is protected.

[0047] Working principle: first, the mains input passes through the power supply main switch QF1, enters the first power supply module for preliminary power supply processing and voltage stabilization; then the alternating current flowing into the rectifier module is converted into direct current power supply for other modules of the maintenance device. Then, the operator sends a control signal to the PLC by pressing the function button (such as the start button, the up button, etc.). The PLC identifies the currently detected control box according to the received button signal, and monitors the running condition of the corresponding control box according to the preset detection program. The PLC transmits the processed monitoring result to the function relay and switch through the output port, and then controls the circuit on-off of the corresponding control box. Finally, when the maintenance module detects that the control box has a fault, a signal will be sent to the audible and visual alarm unit to trigger the running light and the parking light to flash, and a sound alarm is also sent. The safety relay in the fault isolation unit is connected with the output port of the PLC, when a serious fault is detected, the PLC will immediately send a signal to the safety relay, the safety relay acts to automatically cut off the power supply link of the corresponding control box to prevent the fault from further expanding.

[0048] The other structures of the maintenance device described in the embodiment refer to the prior art.

[0049] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. An overhauling device applied to a construction platform, the construction platform comprising a weighing control box, a platform control box and a crane control box, characterized in that: it comprises an overhauling module, a safety module and a power module; the power module is connected to the overhauling module, the weighing control box, the platform control box and the crane control box respectively; the overhauling module is connected to the safety module, the weighing control box, the platform control box and the crane control box respectively; the overhauling module has an identification unit and a detection unit, the identification unit is a programmable logic controller, and the detection unit comprises an uplink relay and a downlink relay; one end of the uplink relay is connected to a signal output port Y1 of the programmable logic controller, the other end of the uplink relay is connected to one end of the downlink relay, and the other end of the downlink relay is connected to a signal output port Y2 of the programmable logic controller, so as to realize detection of the running status of the weighing control box, the platform control box and the crane control box.

2. The overhauling device according to claim 1, characterized in that: the overhauling module further comprises a start button, a control box emergency stop button, an automatic running button, an uplink button, a downlink button and a power contactor switch; the start button, the control box emergency stop button, the automatic running button, the uplink button and the downlink button are connected in parallel; one end of the start button is connected to a signal input port X0 of the programmable logic controller, and the other end of the start button is connected to a common terminal COM of the programmable logic controller; one end of the control box emergency stop button is connected to a signal input port X1 of the programmable logic controller, and the other end of the control box emergency stop button is connected to the common terminal COM of the programmable logic controller; one end of the automatic running button is connected to a signal input port X2 of the programmable logic controller, and the other end of the automatic running button is connected to the common terminal COM of the programmable logic controller; one end of the uplink button is connected to a signal input port X3 of the programmable logic controller, and the other end of the uplink button is connected to the common terminal COM of the programmable logic controller; one end of the downlink button is connected to a signal input port X4 of the programmable logic controller, and the other end of the downlink button is connected to the common terminal COM of the programmable logic controller; one end of the power contactor switch is connected to a signal input port X5 of the programmable logic controller, and the other end of the power contactor switch is connected to the common terminal COM of the programmable logic controller.

3. The overhauling device according to claim 2, characterized in that: the safety module comprises an audible and visual alarm unit and a fault isolation unit; the audible and visual alarm unit is used to prompt device failure through sound signals and flashing lights; the fault isolation unit is linked with the overhauling module, and automatically cuts off the power supply link of the corresponding control box when a serious fault is detected.

4. The overhauling device according to claim 1, characterized in that: the power module comprises a first power module and a rectifier module; The rectifier module is connected to the first power module, and is configured to convert a commercial input power into a power used by the programmable logic controller.

5. The device of claim 3, wherein: The audible and visual alarm unit comprises a running light and a parking light; The running light and the parking light are connected in parallel; One end of the running light is connected to one end of the up relay, and the other end of the running light is connected to a signal output port Y3 of the programmable logic controller; One end of the parking light is connected to one end of the up relay, and the other end of the running light is connected to a signal output port Y4 of the programmable logic controller.

6. The device of claim 3, wherein: The fault isolation unit comprises a safety relay and a safety relay switch; One end of the safety relay is connected to an output port Y0 of the programmable logic controller, and the other end of the safety relay is connected to the other end of the down relay; One end of the safety relay switch is connected to a COM terminal of the programmable logic controller, and the other end of the safety relay switch is connected to an input port X6 of the programmable logic controller.

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