Automatic tightening system and method for rail fastener robot

Abstract

The invention belongs to the technical field of rail maintenance, and particularly discloses an automatic tightening system and method for a rail fastener robot. The system comprises a rail car, a rail car positioning module, a fastener and rail detection module, a servo electric tightening machine module, an elbow tightening robot module, a communication module, a workstation module and a management server module, the rail car positioning module is used for positioning position information of the rail car, the fastener and rail detection module is used for detecting crack damage of a steel rail to be detected and locking torque of a rail fastener bolt, the workstation module is used for judging the rail fastener bolt to be tightened according to position information of the rail car and the locking torque value of the rail fastener bolt and calculating the position information of the rail fastener bolt to be tightened and controlling a corresponding tightening machine to tighten or replace the rail fastener bolt to be tightened according to the direction of the rail fastener bolt. According to the system, automatic detection of rail flaw detection, rail fastener state and bolt locking torque is realized, and the working efficiency and the operation precision are high.

Description

technical field [0001] The invention belongs to the technical field of automatic track maintenance, and more specifically relates to a robot automatic tightening system and method for track fasteners. Background technique [0002] The detection methods and main features of the state of track fasteners and the locking torque of sleeper bolts in the former high-speed railway, subway and other construction sections are as follows: (1) Manual inspection, which must be completed within the skylight time. In the dark night, light up with a flashlight, watch through human eyes, and then use a small hammer to tap the fastener screws one by one to check for looseness; due to the lack of fast and effective equipment and methods, misjudgment and misjudgment are easy to occur. The inspection efficiency of fasteners is also relatively low, and it takes a long time to complete the inspection of a section of line. Therefore, in order to realize the high efficiency of railway safety inspec...

AI Technical Summary

Problems solved by technology

Compared with ordinary manual inspection, this method quantifies the steps that data information needs to rely on manual judgment, but the operation method is basically the same as manual inspection, and the operation efficiency has not been greatly improved; Some hand-push testing equipment will be used for flaw detection and shape and size tolerance testing. However, due to relying on hand-push walking, there are still problems of high labor intensity and low efficiency.

(4) Check with the help of auxiliary vehicles; the staff in the public works section can also use the auxiliary special maintenance vehicles to carry out track fastener assembly and patrol inspection. This maintenance method can reduce the physical labor of workers and improve work efficiency. However, due to the need It is completed by manpower and needs to be affected by weather conditions, and maintenance cannot be performed in some bad weather

Use manual tools to tighten, and when the bolt torque is relatively large, you need to use a booster rod, which is labor-intensive; the bolt tightening torque depends entirely on the worker's hand feeling, the accuracy of the torque value cannot be controlled, and there is a risk of over-torque or missing punching; (2) using fuel Or hydraulic tools, heavy-duty fuel-powered wrench with sustainable power and can be assembled to rail carts; but it is only suitable for vertical rail bolt conditions, and cannot adapt to fishplate conditions. The machine is heavy, noisy, has exhaust gas emissions, and has no data Acquisition, storage and transmission functions; (3) Tighten with the help of electric wrench, still need to rely on workers to operate, can not be fully automated, still can not avoid some quality problems caused by personnel negligence, and automatic methods inefficient compared to

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