Intelligent lubricating system for metallurgical ladle crane

Abstract

The utility model discloses an intelligent lubrication system for a metallurgy ladle crane, which comprises an electrical control cabinet and an internet remote computer data processing system connected with the electrical control cabinet, the electrical control cabinet is connected with two electric lubrication pumps, the liquid inlet end of each electric lubrication pump is connected with an electric oil filling pump, and the liquid outlet end of each electric lubrication pump is connected with an oil pump. The liquid outlet end of the electric lubricating pump is connected with at least three quantitative oil distribution devices, and each quantitative oil distribution device is connected with a plurality of lubricating liquid outlet ends and further connected with at least two lubricating oil single-line distributors. The distributor is a direct-current motor type or electromagnetic valve type single-point oil supply distributor with system blockage and flow metering, and a plurality of lubricating liquid outlet ends are arranged on the lubricating oil single-line distributor respectively.

Description

Technical Field

[0001] The utility model relates to an intelligent lubrication system for a metallurgical casting crane. Background Art

[0002] Large metallurgical casting cranes are conventionally designed with a four-beam four-track structure. The whole machine is equipped with main and auxiliary lifting mechanisms, main and auxiliary trolley running mechanisms, and different forms of transmission mechanisms of trolley running mechanisms. Some metallurgical casting cranes are also equipped with translation mechanisms according to their different functions and uses. The multi-mechanism transmission system of metallurgical casting cranes involves many mechanical lubrication points, with as many as about 100 lubrication points. The stable operation of each mechanical transmission mechanism is guaranteed by the reliable operation of the mechanical equipment lubrication system.

[0003] Under conventional design conditions, the original design of large metallurgical casting cranes generally adopts an electric centralized lubrication system. The system sets a traditional spring-type plunger distributor to distribute grease to each lubrication point. In a high-temperature dusty environment, the distributor is very easy to get stuck, causing the pipeline to be blocked or blocked, and it is not easy to check and determine the fault point, which can easily lead to mechanical lubrication accidents. The maintenance and inspection of the lubrication system pipeline requires maintenance personnel to enter the high-altitude edge danger area near the wheel group to disassemble and check the lubrication points point by point, which has low maintenance efficiency; at the same time, there is a safety risk of falling when working at high altitude edges, and the inherent safety of the equipment is low.

[0004] Literature search: 1. Patent No. CN201520298371.2 announced "A Crane Lubrication System". The utility model provides a crane lubrication system that is easy to operate, including an oil tank, a lubrication pump, a main oil inlet pipeline and a main oil return pipeline; the branch oil inlet pipeline and the branch oil return pipeline are connected to the oil nozzles of the crane's moving parts; the utility model can provide lubricating oil to each moving part of the crane without having to add lubricating oil separately, and the operation is simple and convenient, and does not involve intelligent detection technology for pipeline blockage and leakage. 2. Patent No. CN202223575207.0 announced "A fault detection device for a centralized lubrication system of a crane". The utility model discloses a fault detection device for a centralized lubrication system of a crane. The lubrication system includes an electric grease lubrication pump with a controller, and the electric grease lubrication pump is connected to a distributor through a main pipeline. The distributor is connected to at least one branch pipeline, and the end of the branch pipeline is used to connect to a corresponding lubrication point. It is characterized in that pressure switches installed on all pipelines are connected to a status detection panel. The device can detect faults in a timely manner and can quickly determine the location of the fault point, thereby improving maintenance efficiency and avoiding mechanism failures caused by insufficient lubrication and no lubrication.

[0005] Through the current situation investigation, it is found that the inspection, maintenance and fault diagnosis of traditional electric centralized lubrication devices need to be carried out by experienced inspectors through disassembly inspection and observation of the oil flow at the end of the remote pipeline. The overall inspection of the system is difficult, so it is necessary to design an intelligent system solution for the existing centralized lubrication system. Through the system design of electrical signal detection technology and devices, the system operation status detection and fault detection can be increased, and the wireless network data remote transmission and fault information mobile phone App can be timely pushed, so as to realize the intelligent integration of the lubrication system of the metallurgical casting crane. Summary of the invention

[0006] The purpose of the utility model is to provide an intelligent lubrication system for metallurgical casting cranes. Aiming at the high temperature and dusty working environment of large metallurgical casting cranes, the system pipeline layout, cable protection, high temperature protection and other aspects can be redesigned specially, and the lubricating oil stations can be set up separately to avoid pipeline blockage and grease pollution caused by the high temperature environment.

[0007] The technical solution adopted by the utility model is an intelligent lubrication system for metallurgical casting cranes, including an electrical control cabinet and an Internet remote computer data processing system connected to the electrical control cabinet, the electrical control cabinet is connected to two electric lubrication pumps, the liquid inlet end of the electric lubrication pump is connected to an electric refueling pump, the liquid outlet end of the electric lubrication pump is connected to at least three quantitative oil distribution devices, the quantitative oil distribution devices are respectively connected to a plurality of lubricating liquid oil outlet ends, the quantitative oil distribution devices are also connected to at least two lubricating oil single-line distributors, the distributors are DC motor type or solenoid valve type single-point oil supply distributors with system blocking and flow metering, and the lubricating oil single-line distributors are respectively provided with a plurality of lubricating liquid oil outlet ends.

[0008] Based on the original electric centralized lubrication system layout, the utility model redesigns the electrical control system, adds a PLC program control cabinet for the intelligent lubrication system host, and the control system cabinet is arranged in the electrical compartment of the crane main beam. The control system adopts PLC as the control module, and uses a touch screen, a host computer and a mobile phone APP as a human-computer interaction interface. It can be connected to the network to realize centralized control of the computer system and remote monitoring and maintenance through a mobile phone APP, realize functions such as system programming, debugging and system operation status parameter monitoring, and realize intelligent equipment manufacturing of lubrication systems for large metallurgical casting cranes.

[0009] The intelligent lubrication system does not use traditional spring plunger grease distributors, but uses DC motor or solenoid valve single-point oil supply distributors with system blockage and flow metering. Each set of single-point oil supply distributors has signal detection and feedback function, and operates independently according to the functional logic set by the program, completely replacing the spring plunger grease distributor, realizing timely single-point blockage fault and oil shortage fault detection and alarm, and can push fault information in time.

[0010] The utility model is based on the original electric centralized lubrication system design, and uses electrical detection signal technology such as pressure sensors to replace the traditional spring-type plunger distributor with a motor-type or solenoid valve-type single-point oil supply distributor, so that the lubrication system has an intelligent lubrication system with intelligent detection, fault judgment and fault information push, changing the traditional manual inspection operation to intelligent inspection operation, improving the reliability of the lubrication system operation, and promoting efficiency improvement.

[0011] Set the system parameters as follows:

[0012] .

[0013] The intelligent lubrication system of this utility model is equipped with three operation control modes: automatic, manual, and intelligent. The functions can be switched for use in combination with on-site use. The intelligent lubrication system has software programming functions, which can program the lubrication cycle, grease supply, and oil circuit switching functions of mechanical equipment, and also has the function of counting grease consumption. The intelligent lubrication system has remote operation and monitoring functions, which can timely monitor the system operation status, oil circuit oiling point blockage fault detection, oil circuit switching status monitoring, system leakage detection, system pressure detection, oil level detection function, single-point (total within 1 lubrication cycle) grease supply periodic statistics function, and the above operation status parameters are timely transmitted to the ground host via the wireless network. The intelligent lubrication system cooperates with the development of mobile phone App functions to receive system fault information push in a timely manner, which is convenient for on-site maintenance personnel to technically, accurately and quickly eliminate fault points and ensure stable and reliable operation of the system.

[0014] The design scheme has been tested on site and its effect has been verified. It has also been tested on a metallurgical casting crane in the steelmaking workshop of a large metallurgical enterprise. The system operation reliability and fault alarm accuracy meet the requirements of the previous functional design. It provides technical guarantees for the stable operation of large metallurgical casting crane mechanical equipment, while improving the efficiency of maintenance operations and reducing the labor intensity of on-site operators. Therefore, the intelligent lubrication system can be promoted and applied in large metallurgical casting cranes in terms of equipment intelligence and cost improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the connection structure of the utility model. Implementation

[0016] An intelligent lubrication system for metallurgical casting cranes, such as Figure 1As shown, it includes an electrical control cabinet 6 and an Internet remote computer data processing system 8 connected to the electrical control cabinet 6. The electrical control cabinet 6 is connected to two electric lubrication pumps 5. The liquid inlet end of the electric lubrication pump 5 is connected to an electric refueling pump 7. The liquid outlet end of the electric lubrication pump 5 is connected to at least three quantitative oil distribution devices 4. The quantitative oil distribution devices 4 are respectively connected to a plurality of lubricating liquid oil outlet ends 3. The quantitative oil distribution devices 4 are also connected to at least two lubricating oil single-line distributors 2. The distributors 2 are DC motor type or solenoid valve type single-point oil supply distributors with system blocking and flow metering. The lubricating oil single-line distributors 2 are respectively provided with a plurality of lubricating liquid oil outlet ends 1.

Claims

1. An intelligent lubrication system for metallurgical casting cranes, comprising an electrical control cabinet and an Internet remote computer data processing system connected to the electrical control cabinet, characterized in that: The electrical control cabinet is connected to two electric lubrication pumps, the liquid inlet end of the electric lubrication pump is connected to an electric refueling pump, and the liquid outlet end of the electric lubrication pump is connected to at least three quantitative oil distribution devices, and the quantitative oil distribution devices are respectively connected to a number of lubricating liquid oil outlet ends. The quantitative oil distribution device is also connected to at least two lubricating oil single-line distributors, and the distributors are DC motor type or solenoid valve type single-point oil supply distributors with system blockage and flow metering, and the lubricating oil single-line distributors are respectively provided with a number of lubricating liquid oil outlet ends.

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