Intelligent type of mud row car anti-derailing device

Abstract

The utility model discloses an intelligent type sludge removal travelling crane anti -derailing device relates to water treatment technical field, including anti -derailing controller, one side inner wall fixed mounting of anti -derailing controller has the isolating disc, the anti -derailing controller is close to the top end surface fixed mounting of isolating disc one side has analog module, the anti -derailing controller is close to the bottom fixed mounting of isolating disc one side has switch disc, the switch disc one side surface is provided with control switch, the switch disc one side surface detachably installed has control connector, the control connector one side top end surface fixed connection has monitoring connecting line. Through setting track contact disc on proximity switch ware directly and track contact, when the travelling crane has the trend of abnormal jumping of walking wheel and derailing because of serious derailment, the distance between proximity switch and track increases, and proximity switch cannot sense metal signal, at this moment, will output signal, and through PLC, simultaneously drive relay to cut off power supply and make travelling crane stop walking.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to an intelligent anti-derailment device for sludge discharge trolleys. Background Technology

[0002] Sludge removal trolleys are key equipment in urban wastewater treatment plants, waterworks, and industrial wastewater treatment processes. They are responsible for continuously or intermittently removing sludge deposited at the bottom of the tank. Their long-term, stable, and safe operation is crucial for ensuring the smooth flow of the entire water treatment process and the quality of the effluent. Traditional sludge removal trolleys are typically driven by motors, with wheels reciprocating on tracks laid on both sides of the tank top. However, in actual operation, due to harsh working environments, long-term fatigue of the equipment, and potential external factors, derailment accidents occur frequently. Some improved solutions have added limit switches or proximity switches to detect the relative position of the wheels and the edge of the tracks. When the wheels press against the switch, the trolley alarms or stops urgently. However, these solutions do not monitor and analyze derailment precursor indicators such as track status, walking synchronization, and structural vibration in real time. Therefore, we have redesigned an intelligent anti-derailment device for sludge removal trolleys. Utility Model Content

[0003] The purpose of this utility model is to provide an intelligent anti-derailment device for mud-discharging trolleys.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an intelligent anti-derailment device for a mud-discharging trolley, comprising an anti-derailment controller, an isolation plate fixedly installed on one inner wall of the anti-derailment controller, an analog quantity module fixedly installed on the top surface of the anti-derailment controller near the isolation plate, a switch plate fixedly installed on the bottom end of the anti-derailment controller near the isolation plate, a control switch provided on one surface of the switch plate, a control connector detachably installed on one surface of the switch plate, a monitoring connection line fixedly connected to the top surface of one side of the control connector, a proximity switch fixedly connected to the top surface of one side of the monitoring connection line, a track contact plate fixedly connected to the top surface of one side of the proximity switch, a relay fixedly installed on the surface of the anti-derailment controller near the switch plate, and a main switch controller fixedly installed on the bottom end of the inner side of the anti-derailment controller.

[0005] Preferably, there are several control switches, which are evenly distributed on one side surface of the switch panel. The proximity switch and the switch panel are connected by a power control connection, and the monitoring connection line passes through the interior of the anti-derailment controller.

[0006] Preferably, a connecting shaft is rotatably connected to one top surface of the anti-derailment controller, and a movable top cover is fixedly connected to one side surface of the connecting shaft.

[0007] Preferably, a wiring connector is fixedly installed on the top side of the anti-derailment controller, and a first wiring organizing groove is provided inside the wiring connector. An external wiring connector is fixedly connected to the top surface of the anti-derailment controller near the wiring connector, and a second wiring organizing groove is provided inside one side of the external wiring connector.

[0008] Preferably, the first line organizing groove extends through the interior of the line connector and the anti-derailment controller. There are several first line organizing grooves, which are evenly distributed inside the line connector. The cross-sectional area of ​​the movable top cover is the same as the cross-sectional area of ​​the anti-derailment controller.

[0009] Preferably, there are several external connecting pipes for the track, and these external connecting pipes are evenly distributed on one side surface of the anti-derailment controller. The second track organizing groove penetrates the interior of the external connecting pipes for the track and the anti-derailment controller. The monitoring connection line extends from the interior of the second track organizing groove, and the connection between the second track organizing groove and the monitoring connection line is a movable sleeve.

[0010] Compared with related technologies, the intelligent mud-discharging trolley anti-derailment device provided by this utility model has the following beneficial effects: This utility model provides an intelligent anti-derailment device for mud-discharging trolleys. It involves a rail contact plate on a proximity switch that directly contacts the rail. When the trolley experiences severe rail slippage, causing abnormal wheel movement and a tendency to derail, the distance between the proximity switch and the rail increases, and the proximity switch no longer senses a metal signal. At this point, it outputs a signal, which simultaneously drives a relay via PLC to cut off the power supply and stop the trolley. The connection between the switch plate and the control connector, for direct control by the proximity switch, whether using a single-sensor or dual-sensor scheme, does not inherently prevent derailment. Its true function is to monitor for severe rail slippage, derailment, or abnormal trolley position, promptly detecting abnormal signals, immediately reporting fault information, and simultaneously stopping the trolley's motor. This significantly reduces the risk of further damage caused by the motor not stopping promptly after derailment, preventing irreversible damage to the trolley's truss structure.

[0011] This utility model provides an intelligent anti-derailment device for a mud-discharging trolley. Current sensors are installed in the circuits of the two motors on the trolley to monitor the operating current of the motors on both sides in real time. When the motor operation becomes abnormal, such as sluggish operation or jamming, the motor current changes according to the load. The current sensors can detect this change in time. When the PLC detects that the real-time motor current exceeds the alarm set value, it sends an action signal to the relay, stopping the trolley and preventing more serious faults caused by abnormal motor operation. The host computer can receive the motor operating current value from the PLC and view its historical data curves. Currently, the alarm methods include detecting current exceeding upper or lower limits and issuing a signal to stop the machine, and detecting the deviation of the travel current on both sides to stop the machine. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the track approach device of this utility model; Figure 3 This is a side view structural schematic diagram of the circuit organizing device of this utility model; Figure 4 This is a schematic diagram of the control circuit structure of this utility model; Figure 5 This is a schematic diagram of the proximity switch principle structure of this utility model; Figure 6 This is a schematic diagram of the current sensor principle structure of this utility model.

[0013] The following are the labels in the diagram: 1. Anti-derailment controller; 2. Isolation plate; 3. Analog module; 4. Switch panel; 5. Control switch; 6. Control connector; 7. Monitoring connection line; 8. Proximity switch; 9. Track contact plate; 10. Relay; 11. Main switch controller; 12. Connecting shaft; 13. Movable top cover; 14. Line connector; 15. First line consolidation slot; 16. External line consolidation pipe; 17. Second line consolidation slot. Detailed Implementation Example

[0014] Please see Figure 1-6This utility model provides a technical solution: an intelligent anti-derailment device for a mud-discharging trolley, comprising an anti-derailment controller 1, an isolation plate 2 fixedly installed on one inner wall of the anti-derailment controller 1, an analog quantity module 3 fixedly installed on the top surface of the anti-derailment controller 1 near the isolation plate 2, a switch plate 4 fixedly installed on the bottom end of the anti-derailment controller 1 near the isolation plate 2, a control switch 5 provided on one surface of the switch plate 4, a control connector 6 detachably installed on one surface of the switch plate 4, and a monitoring connection line 7 fixedly connected to the top surface of one side of the control connector 6. A proximity switch 8 is fixedly connected to one top surface of the monitoring connection line 7. A track contact plate 9 is fixedly connected to one top surface of the proximity switch 8. A relay 10 is fixedly installed on one side surface of the anti-derailment controller 1 near the switch panel 4. A main switch controller 11 is fixedly installed at the bottom of one side inside the anti-derailment controller 1. There are several control switches 5. Several control switches 5 are evenly distributed on one side surface of the switch panel 4. The connection between the proximity switch 8 and the switch panel 4 is a power control connection. The monitoring connection line 7 passes through the interior of the anti-derailment controller 1. A connecting shaft 12 is rotatably connected to one side of the top surface of the anti-derailment controller 1. A movable top cover 13 is fixedly connected to one side surface of the connecting shaft 12. A wiring connector 14 is fixedly installed on the top side of the anti-derailment controller 1. A first wiring organizing groove 15 is provided inside the wiring connector 14. An external wiring connector 16 is fixedly connected to the top surface of the anti-derailment controller 1 near the wiring connector 14. A second wiring organizing groove 17 is provided inside one side of the external wiring connector 16. The first wiring organizing groove 15 penetrates the interior of the wiring connector 14 and the anti-derailment controller 1. There are several slots 15, and several first line organizing slots 15 are evenly distributed inside the line connector 14. The cross-sectional area of ​​the movable top cover 13 is the same as the cross-sectional area of ​​the anti-derailment controller 1. There are several line external connectors 16, and several line external connectors 16 are evenly distributed on one side surface of the anti-derailment controller 1. The second line organizing slot 17 penetrates the line external connector 16 and the interior of the anti-derailment controller 1. The monitoring connection line 7 extends from the interior of the second line organizing slot 17. The connection relationship between the second line organizing slot 17 and the monitoring connection line 7 is a movable sleeve.

[0015] In the implementation plan, by setting the rail contact plate 9 on the proximity switch 8 to directly contact the rail, when the trolley experiences severe rail slippage, causing abnormal jumping of the traveling wheels and a tendency to derail, the distance between the proximity switch and the rail increases, and the proximity switch can no longer sense the metal signal. At this time, it will output a signal, which will drive the relay through the PLC to cut off the power supply and stop the trolley. The connection between the switch plate 4 and the control connector 6 is directly controlled by the proximity switch 8. Whether it is a single sensor scheme or a dual sensor scheme, its function does not include preventing the mud-discharging trolley from derailing. Its real function is to detect abnormal signals in time when the trolley experiences severe rail slippage, derailment, or abnormal position. It will immediately report the fault information and stop the mud-discharging trolley's traveling motor immediately. This can greatly reduce the risk of further damage caused by the traveling motor not stopping in time after the trolley derails and prevent irreversible damage to the truss structure of the trolley. By installing current sensors in the circuits of the two motors on the sludge removal trolley, the operating current of the motors on both sides of the trolley is monitored in real time. When the motor operation becomes abnormal, such as sluggish operation or jamming, the motor current will change according to the load. The current sensors can detect this change in time. When the PLC detects that the real-time motor current exceeds the alarm set value, it will send an action signal to the relay to stop the trolley, thus preventing more serious faults caused by abnormal motor operation. The host computer can receive the motor operating current value uploaded by the PLC and view its historical data curve. Currently, the alarm methods used include issuing a signal to stop the machine after detecting the current exceeding the upper or lower limit, and stopping the machine after detecting the deviation value of the travel current on both sides.

[0016] Working principle: By setting the rail contact plate 9 on the proximity switch 8 to directly contact the rail, when the trolley experiences severe rail contact, causing abnormal jumping of the traveling wheels and a tendency to derail, the distance between the proximity switch and the rail increases, and the proximity switch can no longer sense the metal signal. At this time, it will output a signal, which will drive the relay through the PLC to cut off the power supply and stop the trolley. The connection between the switch plate 4 and the control connector 6 is directly controlled by the proximity switch 8. Whether it is a single sensor scheme or a dual sensor scheme, its function does not include preventing the mud-discharging trolley from derailing. Its real function is to detect abnormal signals in time when the trolley experiences severe rail contact, derailment, or abnormal position. It will immediately report the fault information and stop the mud-discharging trolley's traveling motor. This can greatly reduce the risk of further damage caused by the traveling motor not stopping in time after the trolley derails and prevent irreversible damage to the truss structure of the trolley. By installing current sensors in the circuits of the two motors on the sludge removal trolley, the operating current of the motors on both sides of the trolley is monitored in real time. When the motor operation becomes abnormal, such as sluggish operation or jamming, the motor current will change according to the load. The current sensors can detect this change in time. When the PLC detects that the real-time motor current exceeds the alarm setting value, it will send an action signal to the relay to stop the trolley, thus preventing more serious faults caused by abnormal motor operation. The host computer can receive the motor operating current value uploaded by the PLC and view its historical data curve. The current alarm methods include issuing a signal to stop the machine after detecting the current exceeding the upper or lower limit, and stopping the machine after detecting the deviation value of the travel current on both sides. 1. Two fault diagnosis modes: "current transmitter fault" and "proximity switch fault." Both modes operate in parallel. 2. Two fault shutdown modes: "physical hardware braking" and "software braking." Both modes operate in parallel.

[0017] 2. Current Transmitter: Powered by DC24V, it detects the current, performs analog-to-digital conversion, processes the data, and sends the analog signal to the PLC's AI module. The module reads the current and performs calculations such as high-limit comparison, low-limit comparison, and difference comparison. The PLC outputs the processing result. When a current fault occurs, the PLC outputs a fault signal to relay (K10). Relay (K10) is energized and engages, normally closed contact 4:12 opens, disconnecting the secondary circuit of the traveling motor and cutting off the power supply to the traveling motor.

[0018] 3. Proximity switches (K6-K9): DC24V power supply. The 0V output is connected to pin 13 of the relay, and pin 14 is connected to the positive terminal of the DC24V power supply. When the proximity switch detects metal on the rail, the relay is energized and closed, and normally open contacts 8 and 12 are closed. When the proximity switch does not detect the rail, the relay is de-energized and disconnected, and normally closed contacts 1 and 9 are closed. The fault information is sent to the PLC for judgment. At the same time, the secondary circuit of the traveling motor of the trolley is disconnected, cutting off the power supply to the traveling motor.

[0019] 4. Physical hardware braking and stopping: The normally open contacts of the four relays (K6-K9) and the normally closed contact of the relay (K10) are connected in series to the secondary control circuit of the train operation. When any coil of the four relays (K6-K9) is de-energized or the coil of the relay (K10) is energized, the circuit will be broken, thereby stopping the train.

[0020] 5. Software-based braking stop: If any limit switch is not detected, or the current limit exceeds the set value, or the current deviation exceeds the set value, the program will determine the problem and delay for 5 seconds before pausing the forward and reverse movement of the crane. After on-site troubleshooting and confirming the problem is resolved, press the fault reset button to allow the crane to resume operation.

Claims

1. An intelligent anti-derailment device for a mud-discharging trolley, comprising an anti-derailment controller (1), wherein an isolation plate (2) is fixedly installed on one inner wall of the anti-derailment controller (1), characterized in that: An analog quantity module (3) is fixedly installed on the top surface of the anti-derailment controller (1) near the isolation plate (2). A switch plate (4) is fixedly installed on the bottom surface of the anti-derailment controller (1) near the isolation plate (2). A control switch (5) is provided on one side surface of the switch plate (4). A control connector (6) is detachably installed on one side surface of the switch plate (4). A monitoring connection line (7) is fixedly connected to the top surface of one side of the control connector (6). A proximity switch (8) is fixedly connected to the top surface of one side of the monitoring connection line (7). A track contact plate (9) is fixedly connected to the top surface of one side of the proximity switch (8). A relay (10) is fixedly installed on the surface of the anti-derailment controller (1) near the switch plate (4). A main switch controller (11) is fixedly installed on the bottom surface of one side inside the anti-derailment controller (1).

2. The intelligent anti-derailment device for mud-discharging trolleys according to claim 1, characterized in that, The number of control switches (5) is several, and the several control switches (5) are distributed at equal intervals on one side surface of the switch panel (4). The connection relationship between the proximity switch (8) and the switch panel (4) is a power control connection. The monitoring connection line (7) passes through the interior of the anti-derailment controller (1).

3. The intelligent anti-derailment device for mud-discharging trolleys according to claim 1, characterized in that, The anti-derailment controller (1) has a connecting shaft (12) rotatably connected to one side of its top surface, and a movable top cover (13) is fixedly connected to one side of the connecting shaft (12).

4. The intelligent mud-discharging trolley anti-derailment device according to claim 3, characterized in that, A line connector (14) is fixedly installed on the top side of the anti-derailment controller (1). A first line organizing groove (15) is opened inside the line connector (14). A line external connector (16) is fixedly connected to the top surface of the anti-derailment controller (1) near the line connector (14). A second line organizing groove (17) is opened inside one side of the line external connector (16).

5. The intelligent anti-derailment device for mud-discharging trolleys according to claim 4, characterized in that, The first line sorting groove (15) penetrates the interior of the line connector (14) and the anti-derailment controller (1). There are several first line sorting grooves (15), and several first line sorting grooves (15) are distributed at equal intervals inside the line connector (14). The cross-sectional area of ​​the movable top cover (13) is the same as the cross-sectional area of ​​the anti-derailment controller (1).

6. The intelligent mud-discharging trolley anti-derailment device according to claim 4, characterized in that, The number of the external line connectors (16) is several, and the several external line connectors (16) are distributed at equal intervals on one side surface of the anti-derailment controller (1). The second line tidying groove (17) penetrates the external line connectors (16) and the interior of the anti-derailment controller (1). The monitoring connection line (7) extends from the interior of the second line tidying groove (17). The connection relationship between the second line tidying groove (17) and the monitoring connection line (7) is a movable sleeve.

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