Shandong Meian Mining Equipment Company supplies coal mine trackless rubber-tired vehicle stall protection devices, trackless rubber-tired vehicle overspeed protection devices, and trackless rubber-tired vehicle stall flexible interception systems.

Why install trackless rubber-tired vehicle stall protection devices and rubber-tired vehicle stall flexible interception systems: Trackless rubber-tired vehicles are widely used in many coal mines underground. However, during operation, incidents of speed loss and runaway vehicles often occur due to brake failure, gear disengagement failure, or other reasons, leading to property damage and casualties, posing a major hidden danger to mine safety. Article 392 of the Coal Mine Safety Regulations clearly stipulates: Long slope sections in roadways must adopt trackless rubber-tired vehicle stall protection safety measures.

Principle and advantages of the trackless rubber-tired vehicle stall protection device flexible interception system: The coal mine trackless rubber-tired vehicle stall protection device mainly consists of a flexible interception energy absorption system, vehicle speed monitoring system, onboard remote control, and control system. Speed detection radar installed in the roadway monitors the speed of operating trackless rubber-tired vehicles. Once a vehicle stall is detected, the relevant information is transmitted to the receiving device on the vehicle. The onboard remote control system sends a control signal, and the interception net quickly deploys. When the stalled vehicle reaches the position of the flexible interception net, the front part of the vehicle is enveloped by the net and moves downward a certain distance. During the descent, under the interception force provided by the steel cables and energy absorbers of the interception system, the stalled vehicle is decelerated and stopped. When a vehicle overspeeds or experiences speed loss due to brake failure or gear disengagement failure, the radar captures the overspeed signal or the onboard signal transmission button is pressed. The vehicle's real-time information is transmitted via the 4G network to the trackless rubber-tired vehicle stall protection intelligent software system, which then pushes the information to the interception control system and electronic displays and voice prompt signs in the roadway, alerting other vehicles to avoid collisions and preventing secondary accidents. Simultaneously, the system uses dual analysis through radio frequency and photoelectric technologies to calculate the optimal interception position, deploy the flexible interception device. The vehicle collides with the flexible interception device, and the buffer energy absorption device absorbs the kinetic energy generated during the vehicle's movement, applying flexible braking to the speed-lost vehicle to achieve successful interception.

Components of the coal mine trackless rubber-tired vehicle stall protection device:

(1) Radar vehicle speed sensor

The radar vehicle speed sensor is primarily used to detect the vehicle's speed and provide it to the controller for processing. Sensors typically employ principles such as magnetic, microwave, or laser, but their core working principle is essentially the same: using changes in internal physical parameters to detect vehicle speed. Once the vehicle speed changes, the sensor immediately generates a signal, which is then transmitted to the controller via data lines.

(2) Main unit of the trackless rubber-tired vehicle stall protection device

The main unit of the trackless rubber-tired vehicle stall protection device is the core component of the system. Its primary function is to process and analyze the vehicle speed signals detected by the sensors in real-time and relay the results to the motor speed control device. Once the controller detects that the vehicle's speed has fallen below a certain threshold, it issues a stop signal to halt the motor's operation, ensuring the vehicle stops safely.

(3) Wireless communication module

The wireless communication module is an important component paired with the main unit of the trackless rubber-tired vehicle stall protection device. It is mainly used to transmit the rubber-tired vehicle's speed information and control signals to the remote monitoring center. This module typically employs communication technologies such as GPS or GPRS to monitor the vehicle's location and status in real-time and transmit the information to the monitoring center. When the vehicle loses control, the module can immediately notify the monitoring center to take appropriate measures, ensuring the safety of personnel and equipment.