Three-dof hybrid damping pantograph

Patent metadata

Field	Value
Publication number	US-2016257205-A1
Application number	US-201514890156-A
Country	US
Kind code	A1
Filing date	May 28, 2015
Priority date	Aug 19, 2014
Publication date	Sep 8, 2016
Grant date	—

Abstract

The invention discloses a three-DOF hybrid damping pantograph, comprising an electric driving transmission system fixed on a base, and collector heads, transverse dampers, parallel support frames as well as longitudinal dampers. Square auxiliary holes are arranged on the base, supporting insulators are arranged on four angles below the base; four transverse dampers are symmetrically fixed on the base, and arranged on the outside of the parallel support frames and connected with the parallel support frames through hinges; four longitudinal dampers are symmetrically fixed on the top of the parallel support frames; the collector heads are connected with the parallel support frames by the longitudinal dampers and separators are arranged on the collector heads. The invention can realize bearing and damping spatially in three directions, avoid pantograph detachment, catenary scraping and other safety accidents, and improve the structural stability of the pantograph and adaptability to the catenary.

First claim

What is claimed is:

1 . A three-DOF hybrid damping pantograph, comprising an electric driving transmission system fixed on a base, and collector heads, wherein:
further comprising transverse dampers, parallel support frames and longitudinal dampers; square auxiliary holes being arranged on the base, supporting insulators being arranged on four angles below the base; four transverse dampers being symmetrically fixed on the base, and arranged on the outside of the parallel support frames and connected with the parallel support frames through hinges; four longitudinal dampers being symmetrically fixed on the top of the parallel support frames; the collector heads being connected with the parallel support frames by the longitudinal dampers; the parallel support frames comprising linear guide rails, open-type linear bearing pedestals, two-staged (or three-staged) cylinders, scalable guide posts, U-shaped stands and intermediate connecting plates; the linear guide rails being fixed on the top of the base; the open-type linear bearing pedestals being connected with the linear guide rails by the first sliding pairs, the open-type linear bearing pedestals being connected with the transverse dampers through hinges; the lower ends of the two-staged (or three-staged) cylinders being connected with the open-type linear bearing pedestals by the first revolute pairs and the upper ends are connected with the U-shaped stands by the second revolute pairs; the bottom ends of the scalable guide posts being fixed on the base by bolts and the top ends being connected with the U-shaped stands by the third revolute pairs, the axes of the scalable guide posts being vertical to the upper surface of the base and the axes of the first sliding pairs; both ends of the intermediate connecting plates being connected with the U-shaped stands by the fourth revolute pairs; the electric driving transmission system comprising a left rotating screw rod, a right rotating screw rod, and motors, retarders and bearing pedestals; and the retarders being dual-output-shaft worm gear retarders; the motors being installed at the input ends of the retarders; one end of the left rotating screw rod and one end of the right rotating screw rod being connected with two output shafts of the retarders respectively, and the other ends being installed on the base by the bearing pedestals; the longitudinal dampers being composed of lugs, guide rods and springs, the lugs being located on the upper surfaces of the intermediate connecting plates and firmly connected with the intermediate connecting plates, the springs being sleeved on the guide rods and both ends of the guide rods being installed in the lugs.

2 . The three-DOF hybrid damping pantograph according to claim 1 , wherein the transverse dampers comprise cross-moving slide bases, preloaded springs and cross-moving dampers, the cross-moving slide bases are installed on the linear guide rails of the parallel support frames and connected with the linear guide rails by the first sliding pairs; the preloaded springs are located between the cross-moving slide bases and the open-type linear bearing pedestals, and the preloaded springs are sleeved on the cross-moving dampers; one end of the cross-moving dampers is connected with the open-type linear bearing pedestal of the parallel support frames by hinges and the other end is connected with the cross-moving slide base by hinges.

3 . The three-DOF hybrid damping pantograph according to claim 1 , wherein the collector heads are composed of head brackets, separators, sliding plate bolts and carbon sliding plates. Both ends of the bottoms of the head brackets are provided with two longitudinal sliding sleeves having two parallel axes respectively, the top parts of the head brackets are provided with dismounting holes; the sliding plate bolts are connected with the head brackets by the separators; the carbon sliding plates are located on the top ends of the sliding plate bolts and firmly connected with the sliding plate bolts;
the separators comprise elastic jack catches and trough bodies, the elastic jack catches are located under the sliding plate bolts and firmly connected with the sliding plate bolts, at least three elastic jack catches are provided, the external sides of the bottoms of the elastic jack catches are provided with antiskid bulges; the trough bodies are located on top parts of the head brackets and firmly integrated with the head brackets, and troughs are provided in the trough bodies; the elastic jack catches are installed in the troughs of the trough bodies.

4 . The three-DOF hybrid damping pantograph according to claim 1 , wherein the axes of the first revolute pairs, the second revolute pairs and the third revolute pairs on the parallel support frames are in parallel to each other, the axes of the first revolute pairs are vertical to the axes of the two-staged (or three-staged) cylinders and the axes of the fourth revolute pairs, the axes of the first sliding pairs are vertical to the axes of the first revolute pairs, and the axes of the first sliding pairs are in parallel to the axes of the fourth revolute pairs.

Assignees

• Zhu Xiaolong
• Univ Anhui Sci & Technology

Inventors

• Wang Chengjun
• Li Long
• Zhu Xiaolong
• Liu Zhiwei
• Zhang Chao
• Liu Kai
• Zhang Tianyu

Classifications

• B60L5/18 Primary

  using bow-type collectors in contact with trolley wire · CPC title

• B61C3/00

  Electric locomotives or railcars (characterised by power transmission B61C9/00; electrical features B60L; H02) · CPC title

• B60L5/22 Primary

  Supporting means for the contact bow · CPC title