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(1) When the cage is dropped onto the receiving device at a speed of 2.96 m/s (equivalent to a measuring voltage of 95V), it fails to pass through the receiving device's claw, and there is a noticeable buffering effect.
(2) At a higher speed of 4.67 m/s (measuring voltage of 150V), the cage successfully passes over the claws, with the bottom tray, upper tray, and can cap all clearing the receiving device without obstruction.
(3) The goats remained safe throughout the impact test, demonstrating the reliability of the system under stress conditions.
(4) After the over-discharge test, the device can be immediately returned to its normal parking position, and the receiving mechanism resumes full functionality without any need for additional adjustments or repairs.
Performance Evaluation of the Spring-Buffered Safety Receiving Device:
The spring-buffered safety receiving device is designed to absorb the impact force during loading and unloading operations of mine cars. It ensures the safe passage of the cage in case of an over-discharge accident. Following extensive industrial testing and on-site implementation, the device has proven to be not only simple in design and easy to install, but also highly accurate in positioning, user-friendly, responsive, and reliable. Its strong adaptability, minimal loading impact, low failure rate, and reduced maintenance requirements make it an efficient and cost-effective solution. Additionally, it eliminates the need for external power and avoids the necessity of adjusting the tank twice, which reduces the physical effort required during loading and unloading, thereby improving overall efficiency.
(1) The precise loading position ensures stability between the cart and the car, reducing the risk of the mine car falling off during operation. This enhances both the safety of the vehicle and extends the lifespan of the cart machine.
(2) The impact on the metal structural beam at the lower wellhead is significantly reduced during loading, resulting in less wear and tear and lower maintenance costs for the beam.
(3) The operation of the wellhead operator, signal worker, and driver is simplified, decreasing the likelihood of human error.
(4) By eliminating the lower shaft cradle and using a spring buffer system that is resistant to damage, the maintenance workload for the receiving device is greatly reduced, leading to significant savings in both maintenance and replacement costs.
Overall, this device represents a major advancement in safety and operational efficiency in mining environments.