US 12,467,209 B2
Real-time detecting system for the mechanical quality state of ballast bed based on tamping car
Liang Gao, Beijing (CN); Shunwei Shi, Beijing (CN); Hui Yin, Beijing (CN); Xiaopei Cai, Beijing (CN); Meng Xu, Beijing (CN); Hong Xiao, Beijing (CN); Bowen Hou, Beijing (CN); Yanglong Zhong, Beijing (CN); Yixiong Xiao, Beijing (CN); and Ji Wang, Beijing (CN)
Assigned to Beijing Jiaotong University, Beijing (CN)
Filed by Beijing Jiaotong University, Beijing (CN)
Filed on Dec. 1, 2022, as Appl. No. 18/073,052.
Claims priority of application No. 2021115440521 (CN), filed on Dec. 16, 2021.
Prior Publication US 2023/0193566 A1, Jun. 22, 2023
Int. Cl. E01B 27/16 (2006.01); E01B 35/00 (2006.01)
CPC E01B 27/16 (2013.01) [E01B 35/00 (2013.01); E01B 2203/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A tamping car-based system for detecting a mechanical quality state of a ballast bed in real time, comprising a track lining apparatus and two tamping apparatuses arranged in parallel;
wherein the track lining apparatus comprises two track lining hydro-cylinders, the track lining hydro-cylinders communicate with a hydraulic control system through an oil inlet pipeline and an oil return pipeline; pressure sensors configured to detect pressures of the pipelines are arranged on both the oil inlet pipeline and the oil return pipeline;
the tamping apparatus comprises two pairs of tamping components arranged on both sides, the tamping component comprises a pair of packer arms and two pairs of packers; a dynamic force sensor is provided at a joint between the packer arm and the packer, and the dynamic force sensor can detect a transient dynamic downward insertion force generated when the packer is inserted into the ballast bed;
further comprising a data processing unit, wherein the data processing unit is electrically connected with the pressure sensors and can receive pipeline pressures detected by the pressure sensors and output a thrust of a piston rod;
wherein the pressure sensor is a diffused silicon pressure transmitter, and the diffused silicon pressure transmitter is connected to the oil inlet pipeline or the oil return pipeline through an impulse pipe;
wherein the two track lining hydro-cylinders are arranged in a cross-parallel manner.