Railway coach suspension spring matching method

Abstract

The invention relates to suspended mechanical spring in railway carriages for passenger, concrete relates to option processes for suspended mechanical spring in railway carriages for passenger. The invention solves the problem of difficulty in Making sure that carriages for passenger primary pass the test because of lacking of option processes for standard axle box mechanical spring and bolster mechanical spring when carriages for passenger in maintenance. Weighting the body of the carriages for passenger, Gauging partition of load of the four supporting place in the body carriages for passenger, and Ascertaining the heavy end the light end and the heavy side, the light side of the heavy end and the light end according to the partition of load of the four supporting place; gauging the free height and hardness of the vehicle-mounted axle box mechanical spring and bolster mechanical spring, Ordering the axle box mechanical spring and bolster mechanical spring in order of large to small of the product of the free height and the hardness of the mechanical springs; and then optioning in the order of heavy end to light end, heavy side to light side. The invention can reduce the workload of corrective maintenance, improve the success rate of maintenance, essentially make >primary pass the test, and improve maintenance efficiency and quality.

Description

technical field [0001] The invention relates to a railway passenger car, in particular to a suspension spring on a railway passenger car, in particular to a method for selecting and matching the suspension spring of a railway passenger car. Background technique [0002] The railway passenger car suspension spring device is an important component of the railway vehicle vibration damping device. Its function is mainly reflected in two aspects: one is to make the mass and load of the vehicle more evenly transmitted to each axle, and to make the vehicle under static load condition (Including empty and heavy vehicles), the height of the couplers at both ends from the rail surface should meet the requirements stipulated in the "Railway Technical Management Regulations" to ensure the normal coupling of vehicles; Abrasion and uneven sinking, as well as vehicle vibration and shock caused by wheel scratches, wheel out-of-round, journal eccentricity, etc. The suspension spring device ...

AI Technical Summary

Problems solved by technology

After the springs are installed, complete the car body; check whether the working heights of the axle box springs and bolster springs meet the technical requirements of the bus maintenance process; it is difficult to ensure that the vehicle is qualified for inspection after one drop

If the requirements are not met, it is necessary to mount the car again or adjust the position of the spring, or even replace the spring. It often takes so many repetitions to meet the maintenance process requirements, which not only increases the workload of maintenance, prolongs the maintenance period, but also causes passenger cars The utilization rate of the maintenance station is low, which affects the normal maintenance process of passenger cars

At the same time, the vertical oblique symmetrical load has a large effect, causing an unbalanced force system on the bogie frame, which affects the safe operation of the passenger car after speeding up

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