Prefabricated sleeper for railway ballast track and automatic sleeper changing device

By working in concert with the track trolley, robotic arm, folding mechanism, and gripper and bolting mechanism, the problems of low efficiency and poor safety in replacing railway ballast track sleepers have been solved. This has enabled automated, efficient, and precise installation of prefabricated sleepers, reducing transportation and maintenance costs.

CN122446584APending Publication Date: 2026-07-24武汉铁路职业技术学院
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
武汉铁路职业技术学院
Filing Date
2026-06-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The replacement of sleepers on existing ballast tracks is still mainly done manually, which is inefficient and poses significant safety hazards. Automated sleeper replacement devices have complex structures, poor adaptability, and are prone to damaging the track bed and sleeper fasteners. Furthermore, the bolting mechanism lacks precision.

Method used

The system employs a track trolley, robotic arm, folding mechanism, gripper, and fastening mechanism working in tandem to automate the clamping, transfer, and fastening of prefabricated sleepers. Combined with vision sensors and compensation mechanisms, it ensures precise installation.

Benefits of technology

It has enabled the automation and precision of sleeper replacement, reduced manual labor intensity, reduced safety risks, reduced transportation and maintenance costs, and improved installation accuracy and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122446584A_ABST
    Figure CN122446584A_ABST
Patent Text Reader

Abstract

The application discloses a prefabricated sleeper for ballasted track of railway and an automatic sleeper changing device, and particularly relates to the technical field of railway track, which comprises two track bodies, a plurality of prefabricated sleepers are arranged at the lower parts of the two track bodies at intervals and are connected by bolts, bolts for connection are arranged at the positions where the bolts are connected, track trolleys are arranged at the upper parts of the two track bodies, mechanical arms are arranged at the upper parts of the track trolleys, and folding mechanisms are arranged on the sides of the mechanical arms away from the track trolleys. The prefabricated sleeper for ballasted track of railway and the automatic sleeper changing device realize automatic changing of the prefabricated sleeper, and the whole process of clamping, transferring, moving out of the old sleeper, placing of the new sleeper and tightening of the fastener is realized automatically without a large number of manual operations. The application reduces the labor intensity of the workers, avoids safety risks, shortens the sleeper changing time and meets the requirement of efficient maintenance of the railway.
Need to check novelty before this filing date? Find Prior Art