Dam crest portal crane mechanical rotating equipment state monitoring system based on autonomous controllable PLC

Abstract

The utility model discloses a dam crest portal crane mechanical rotating equipment state monitoring system based on an autonomous controllable PLC, comprising a sensor detection module used for collecting temperature, vibration intensity, vibration amplitude and rotating speed characteristic value data of dam crest portal crane mechanical rotating equipment; the autonomous controllable PLC module is electrically connected with the sensor detection module, and the autonomous controllable PLC module is used for receiving detection data of the sensor detection module and processing the detection data; and the upper computer system module is electrically connected with the autonomous controllable PLC module, and the upper computer system module is used for receiving the data information processed by the autonomous controllable PLC module and displaying the data information. According to the utility model, possible faults of the equipment can be predicted in advance, the maintenance time is reasonably arranged, the unplanned downtime is reduced, and the use efficiency of the hoisting equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical rotating equipment for dam top gantry cranes, and particularly relates to a status monitoring system for mechanical rotating equipment for dam top gantry cranes based on an independently controllable PLC. Background Technology

[0002] During operation, the mechanical rotating equipment of the dam top gantry crane may experience various malfunctions, such as bearing overheating and abnormal vibration. Traditional monitoring methods often rely on manual inspection and simple sensor detection, which have problems such as untimely and inaccurate monitoring. Once a malfunction occurs, it may cause equipment damage, delay in construction and economic losses, or even threaten the personal safety of the staff. Utility Model Content

[0003] To address some or all of the technical problems existing in the prior art, this utility model provides a dam-top gantry crane mechanical rotation device comprising a hoisting motor, a hoisting reducer, a trolley motor, a trolley reducer, a trolley motor, and a trolley reducer. The device is characterized in that the dam-top gantry crane mechanical rotation device status monitoring system based on an independently controllable PLC includes:

[0004] The sensor detection module is used to collect data on the temperature, vibration intensity, vibration amplitude, and rotational speed characteristics of the mechanical rotating equipment of the dam top gantry crane.

[0005] An autonomous and controllable PLC module is electrically connected to the sensor detection module. The autonomous and controllable PLC module is used to receive and process the detection data from the sensor detection module.

[0006] The host computer system module is electrically connected to the autonomous and controllable PLC module. The host computer system module is used to receive and display the data information processed by the autonomous and controllable PLC module.

[0007] Furthermore, in the aforementioned monitoring system for the mechanical rotating equipment of the dam top gantry crane based on an independently controllable PLC, the sensor detection module includes a temperature and vibration sensor and a speed sensor. The hoisting motor, the hoisting reducer, the trolley motor, the trolley reducer, the trolley motor, and the trolley reducer are all equipped with the temperature and vibration sensor, and the speed sensor is respectively installed in the hoisting motor, the trolley motor, and the trolley motor.

[0008] Furthermore, in the above-mentioned dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC, the temperature and vibration sensor and the speed sensor are arranged at the drive ends of the hoisting motor, the trolley motor and the trolley motor;

[0009] The temperature and vibration sensors are arranged at the input ends of the hoisting reducer, the trolley reducer, and the trolley reducer.

[0010] The dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC has the following advantages and beneficial effects:

[0011] This invention monitors the operating status of the motor and reducer using a sensor detection module, and processes and analyzes the detection data using an independently controllable PLC module. This allows for early prediction of potential equipment failures, reasonable scheduling of maintenance time, reduction of unplanned downtime, and improvement of the efficiency of the lifting equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0013] Figure 1 This is a schematic diagram of the status monitoring system for the mechanical rotating equipment of the dam top gantry crane based on an independently controllable PLC, according to this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 10: Hoisting motor; 20: Hoisting reducer; 30: Trolley motor; 40: Trolley reducer; 50: Auxiliary trolley motor; 60: Auxiliary trolley reducer;

[0016] 1: Sensor detection module; 11: Temperature and vibration sensor; 12: Speed ​​sensor;

[0017] 2: Independent and controllable PLC module; 3: Host computer system module. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] like Figure 1As shown, the mechanical rotating equipment of the dam top gantry crane of this utility model includes a hoisting motor 10, a hoisting reducer 20, a trolley motor 30, a trolley reducer 40, a trolley motor 50, and a trolley reducer 60. Its characteristic is that the dam top gantry crane mechanical rotating equipment status monitoring system based on an independently controllable PLC includes:

[0020] Sensor detection module 1 is used to collect temperature, vibration intensity, vibration amplitude and rotational speed characteristic data of the mechanical rotating equipment of the dam top gantry crane;

[0021] The self-controllable PLC module 2 is electrically connected to the sensor detection module 1. The self-controllable PLC module 2 is used to receive and process the detection data from the sensor detection module 1.

[0022] The host computer system module 3 is electrically connected to the autonomous and controllable PLC module 2. The host computer system module 3 is used to receive and display the data information processed by the autonomous and controllable PLC module 2.

[0023] Furthermore, in the dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC of this utility model, the sensor detection module 1 includes a temperature and vibration sensor 11 and a speed sensor 12. The hoisting motor 10, hoisting reducer 20, trolley motor 30, trolley reducer 40, trolley motor 50 and trolley reducer 60 are all equipped with temperature and vibration sensors 11, and the speed sensors 12 are respectively installed in the hoisting motor 10, trolley motor 30 and trolley motor 50.

[0024] Furthermore, in the dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC of this utility model, the temperature and vibration sensor 11 and the speed sensor 12 are arranged at the drive ends of the hoisting motor 10, the trolley motor 30 and the trolley motor 50.

[0025] Temperature and vibration sensors 11 are arranged at the input ends of hoisting reducer 20, trolley reducer 40 and trolley reducer 60.

[0026] The working principle is as follows:

[0027] The autonomous and controllable PLC module 2 reads the temperature, vibration intensity, vibration amplitude, and rotational speed characteristic data detected by the sensor detection module 1 through the PLC. According to the fault judgment rules, it performs data processing and logical relationship conversion, converting the characteristic values ​​into fault types. The autonomous and controllable PLC module 2 transmits the processed data to the host computer system module 3. The host computer system module 3 displays the sensor characteristic values ​​and real-time status curves collected by the autonomous and controllable PLC module 2, records the fault information, and displays the current alarm information, including the alarm device name, alarm type, alarm time, and alarm status.

[0028] The condition for converting feature information into fault type judgment is as follows:

[0029] The PLC module 2 reads the characteristic values ​​of the temperature and vibration sensors installed on the motor drive end, including the vibration intensity values ​​of the X-axis, Y-axis, and Z-axis, as well as the first octave amplitude of the X-axis and the first octave amplitude of the Z-axis. If the vibration intensity value of any one of the X-axis, Y-axis, or Z-axis exceeds the set corresponding threshold, and the first octave amplitude of the X-axis and the first octave amplitude of the Z-axis also exceed the set corresponding threshold, then a rotor imbalance fault is output, and the mechanical rotating equipment of the dam top gantry crane needs to be repaired.

[0030] The PLC module 2 reads the characteristic values ​​of the temperature and vibration sensors installed on the motor drive end, including the X-axis vibration intensity value, Y-axis vibration intensity value, Z-axis vibration intensity value, X-axis frequency 2nd harmonic amplitude, Z-axis frequency 2nd harmonic amplitude, X-axis frequency 3rd harmonic amplitude, and Z-axis frequency 3rd harmonic amplitude. If the vibration intensity value of any one of the X-axis, Y-axis, or Z-axis exceeds the set corresponding threshold, and simultaneously the X-axis frequency 2nd harmonic amplitude, Z-axis frequency 2nd harmonic amplitude, X-axis frequency 3rd harmonic amplitude, and Z-axis frequency 3rd harmonic amplitude also exceed the set corresponding threshold, a rotor misalignment fault is output, requiring maintenance of the dam top gantry crane's mechanical rotating equipment.

[0031] In summary, compared with the prior art, the dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC of this utility model has the following advantages and beneficial effects:

[0032] This invention monitors the operating status of the motor and reducer using a sensor detection module, and processes and analyzes the detection data using an independently controllable PLC module. This allows for early prediction of potential equipment failures, reasonable scheduling of maintenance time, reduction of unplanned downtime, and improvement of the efficiency of the lifting equipment.

[0033] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A status monitoring system for the mechanical rotating equipment of a dam-top gantry crane based on an independently controllable PLC, wherein the mechanical rotating equipment of the dam-top gantry crane includes a hoisting motor, a hoisting reducer, a trolley motor, a trolley reducer, a trolley motor, and a trolley reducer, characterized in that, The dam top gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC includes: The sensor detection module is used to collect data on the temperature, vibration intensity, vibration amplitude, and rotational speed characteristics of the mechanical rotating equipment of the dam top gantry crane. An autonomous and controllable PLC module is electrically connected to the sensor detection module. The autonomous and controllable PLC module is used to receive and process the detection data from the sensor detection module. The host computer system module is electrically connected to the autonomous and controllable PLC module. The host computer system module is used to receive and display the data information processed by the autonomous and controllable PLC module.

2. The dam crest gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC as described in claim 1, characterized in that, The sensor detection module includes a temperature and vibration sensor and a speed sensor. The hoisting motor, the hoisting reducer, the trolley motor, the trolley reducer, the trolley motor, and the trolley reducer are all equipped with the temperature and vibration sensor. The speed sensor is respectively installed in the hoisting motor, the trolley motor, and the trolley motor.

3. The dam crest gantry crane mechanical rotation equipment status monitoring system based on an independently controllable PLC as described in claim 2, characterized in that, The temperature and vibration sensor and the speed sensor are arranged at the drive ends of the hoisting motor, the trolley motor and the trolley motor; The temperature and vibration sensors are arranged at the input ends of the hoisting reducer, the trolley reducer, and the trolley reducer.

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