Application cases of Miran pull rope displacement sensors in engineering emergency repair vehicles

Engineering repair vehicles are tasked with quickly restoring equipment functions at sudden malfunctions, natural disasters or accident sites. Their working environments are often harsh and complex, which poses extremely high requirements for the position control and real-time monitoring of each actuator of the vehicle. The MPS series of pull rope displacement sensors from MIRAN Technology, with their high precision, long travel, and strong environmental adaptability, have become one of the core sensing components for achieving precise control and automated operations in engineering repair vehicles.

I. Sensor Principles and Product Advantages

The Milang MPS series pull rope displacement sensor is a delicate integration of linear displacement sensors in structure, fully combining the advantages of Angle sensors and linear displacement sensors. It features a compact structure, long measurement stroke, small installation space, and high precision. The core working principle is to convert mechanical movement into measurable electrical signals through the extension and retraction of stainless steel pull ropes. The output signals can be directly connected to secondary instruments, PLCS or microcomputer systems, facilitating the realization of automated operations.

The travel range of this series of sensors covers from 100mm to 35000mm (35 meters), which can meet the diverse needs of different repair vehicles. The product supports multiple output methods such as 4-20mA current signal, 0-5V/0-10V voltage signal, RS485 digital signal, and A/B/Z phase pulse signal, and can be flexibly adapted to various control systems.

II. Typical Applications in Engineering Emergency Repair Vehicles

Engineering repair vehicles typically contain multiple actuating mechanisms that require precise position feedback, such as hoisting systems, outrigger systems, lifting platforms, and towing winches. The Milang rope displacement sensor plays a crucial role in the following scenarios:

1. Boom extension and lifting control

The truck-mounted cranes or lifting devices equipped on emergency repair vehicles need to precisely control the extension length of the boom and the lifting height during operation. The rope displacement sensor is installed between the telescopic cylinder or arm section of the boom to monitor the extension length of the boom in real time, providing precise position feedback for the operator and ensuring the safety and accuracy of the hoisting operation. The high-precision feature of the sensor ensures the accurate positioning of heavy objects, which is especially crucial when hoisting precision equipment.

2. Monitoring of outrigger extension and leveling

Before commencing work, engineering repair vehicles must extend their four outriggers to ensure the stability of the vehicle body. The rope displacement sensor is installed at the hydraulic cylinder of the outriggers to detect the extended length of each outrigger in real time. After feeding back to the control system, it can achieve the automatic leveling function. The high reliability and stability of Mirang sensors enable them to operate normally for a long time in harsh environments such as mud and dust, ensuring the safety of repair vehicles under complex ground conditions.

3. Height and Angle positioning of the lifting platform

For emergency repair vehicles that require high-altitude operations, the height and Angle positioning of the lifting platform directly affect the efficiency of the repair and the safety of personnel. The rope pull displacement sensor can be installed at the folding hinge point of the lifting arm. It can calculate the position of the platform by detecting the change in the Angle of the boom, or directly measure the lifting height of the platform through the rope pull method, achieving closed-loop control of the working position.

4. Tension compensation for the winch and traction system

When the towing winch equipped on the emergency repair vehicle is dragging heavy objects, the towing strategy needs to be adjusted according to the length of the rope released. The rope displacement sensor can monitor the release length of the cable in real time. In combination with the control system, it can achieve constant tension control or automatic cable retraction and release, avoiding operation interruption caused by the cable being too long or too short.

III. Core Values of Application

1. Enhance operation accuracy : Through high-precision displacement feedback, precise control of the boom, outriggers and other actuating mechanisms is achieved, avoiding secondary accidents caused by positional errors.

2. Enhance reliability : Miran sensors are manufactured with high-quality materials and advanced processes, capable of operating stably for long periods in harsh environments such as high and low temperatures, humidity, and dust. They are particularly suitable for scenarios where repair vehicles frequently move around and operate around the clock.

3. Easy Installation : The sensor has a compact structure and small installation size, which can be conveniently installed in the limited space of various engineering vehicles without complex calibration and adjustment.

4. Easy to achieve automation: The output signals of the sensors can be directly combined with control systems such as PLCS, facilitating the realization of intelligent functions such as automatic leveling of outriggers and automatic limiting of booms, and reducing human operational errors.

IV. Application Cases

In the overseas market engineering vehicle measurement and control system, the Milang MPS pull rope displacement sensor has been widely applied in engineering vehicles including emergency repair vehicles. By real-time monitoring of the displacement of the actuator, it assists the control system in optimizing operation parameters, effectively enhancing the operational efficiency and safety of the equipment under complex working conditions. In addition, Mirang products have also been maturely applied in large-scale engineering equipment such as shield machines and gantry cranes, and their technical reliability has been fully verified in various harsh working conditions.