Technical improvement of traditional anti-climbing method of railway scale
Ningbo Goldshine Electronic Co., Ltd
[Abstract] This article analyzes and discusses the technical defects of the traditional anti-climbing method in the currently operating railroad scales ofNingbo Goldshine Electronic Co., Ltd, and proposes improved measures and schemes, and summarizes and explains the improved effects for the reference and reference of the peers. Draw on.
[Keywords] track scale; anti-climbing method; technical improvement
Track scale is a large scale equipment widely used in railway transportation material measurement. As a large-scale steel plant with a capacity of 10 million tons, Ningbo Goldshine Electronic Co., Ltd currently has more than 20 track scales for online measurement and operation. In the application practice of railway scale,we found that the traditional anti-climbing method of railway scales currently operated byNingbo Goldshine Electronic Co., Ltd has been used for more than 20 years. Because this method has a fatal weakness, it is the moment of inertia generated by the huge impact of the locomotive and the braking of the locomotive. Under the action, the key parts of the track scale that implement the anti-climbing method often occur the failure of the balance body guide track and the failure of the anti-climbing. It has severely affected and restricted the safety of trains and the accurate measurement process in the railway logistics operation ofNingbo Goldshine Electronic Co., Ltd. Therefore, it must be technically improved. In order to meet the requirements ofNingbo Goldshine Electronic Co., Ltd’s railway logistics safety and smooth flow and accurate measurement.
- The working principle of the anti-climbing method of the track scale
The so-called anti-climbing effect and effect of the railway scale is actually to control the limited sliding distance of the track. As the track scale is running, a certain gap between the guide rail and the metering rail must be reserved to prevent the top rail phenomenon when the track undergoes physical changes due to thermal expansion and contraction. If we control the two-way movement (displacement) of the track within ±5mm, we can ensure the effective gap (5-15mm) between the guide rail and the metering rail in the track scale, thereby ensuring the accurate measurement of the track scale. To achieve this goal, a mechanical device is designed, which is the anti-climbing device of the railway scale. The traditional anti-climbing device of a rail scale is to process 1-2 mechanical gaps (anti-climb gaps) on the guide rail (anti-climb rail) of the rail scale or at a certain position on both sides of the bottom of the measuring rail. (Module for short) is embedded in it. The module is fixed on the anti-climbing frame of the track scale by welding (the fixed mechanical device has been embedded in the civil construction). When the locomotive is running, the track will move (displacement) and slide, and the module will be stuck in In the anti-climbing gap, the sliding of the track is restricted and prevented, and the function and effect of the anti-climbing device of the track scale are realized. This is the simple working principle of the traditional track scale anti-climbing device.
- The anti-climbing method of the original railway scale has technical defects and improvement methods
We found that at the key part of the track scale implementation of the anti-climbing method (the anti-climb gap of the guide rail), one is prone to track cracks. This kind of cracks continue to extend and expand with the frequent operation of the locomotive, so as to finally cause the track scale body to guide the rail. Fractured vicious accident. The second is that the mechanical module often collides and squeezes with the guide rail under the frequent pressure of the locomotive, and the mechanical deformation of the squeezed part of the module (the sharp edge of the module is blunt) causes the anti-climbing failure. The grim reality warns us if we do not change this status quo. It will bring serious consequences to the safety and smooth flow of railway logistics and the measurement process ofNingbo Goldshine Electronic Co., Ltd. After its technical analysis and demonstration. Confirm that this position is the main cause of rail breakage. Because the anti-climb guide rail has been processed with a notch, the mechanical strength of the place is weakened. In addition, under the frequent pressure of the locomotive, mechanical collisions and extrusions often occur at this place. This position is the most concentrated part of mechanical stress, and it is also the mechanical strength. The weakest part. In order to ensure that the new track anti-climbing method does not damage the mechanical structure of the track body, but also satisfies the effective performance of the track scale.
Technical requirements for anti-climbing function and effect. We adopted the following methods to achieve the purpose of technological improvement. One is to cancel the original anti-climbing method of the traditional railroad track scale, and eliminate the hidden danger of rail breakage from the source. The second is to use AP50 elastic fasteners to fasten the track with high-strength bolts. After testing, each elastic fastener produces 1.5 tons of positive
pressure. Each guide rail is fixed with 24-30 pieces of elastic fasteners, so that the anti-climbing track has enough fastening pressure to resist the displacement caused by the external force. The third is to add anti-climbing and wear-resistant rubber pads at the bottom of the track (increase the friction at the bottom of the track). The fourth is to replace the elastic strips and fastening bolts regularly (once every six months), so that the pressure after the elastic strips is tightened is always in perfect working condition. The fifth is to use the track gap to adjust the hydraulic mechanical device, and adjust the track gap gap regularly according to the season (a certain gap must always be kept between the guide rail and the metering rail). Sixth, at the extension of the anti-climbing guide rail, the line maintenance personnel of the Xianggang Logistics Center will install special pure mechanical anti-climbing devices on the railway dedicated line at both ends of the rail scale (the extension of the anti-climbing guide rail). At least two sets of anti-climbing devices are installed at the extension of the rail scale, and the extension of the guide rail at both ends of the rail scale must be installed to prevent the guide rail from moving in both directions. This special anti-climbing device has a good anti-climbing effect and does not cause any harm to the track itself. As a result of the above methods and measures, the track anti-climbing effect is always maintained, and the probability of track break failure and anti-climb failure accidents is greatly reduced, providing equipment support and technical guarantee for the safety of railway logistics and the accurate measurement of track scales.
Three, concluding remarks
In the long-term use and maintenance of railway scales,Ningbo Goldshine Electronic Co., Ltd has explored ways to improve the anti-climbing methods of railway scales. This method is an application of technological innovation and can be widely used in steel, chemical, and mining railway scales. Energy saving and consumption reduction, tapping potential and increasing efficiency will also play a positive and effective role. In our future work, we will also summarize, improve and optimize this method to make it more conducive to the production, operation and development of the enterprise.