Patents by Inventor Qianxing Luo

Qianxing Luo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Concrete distributing apparatus, and vibration suppression method, controller and device for the boom thereof
    Patent number: 9637939
    Abstract: A boom vibration suppression method for concrete distributing apparatus is disclosed. The boom comprises a boom oil cylinder for respectively driving each section of the boom; the vibration suppression method comprises: detecting the variation of output force of the boom oil cylinder, and maintaining the variation of output force within the range of a preset threshold. The present invention further provides a vibration suppression controller, a vibration suppression device, and a concrete distributing apparatus that implement the method described above. The vibration of the boom is controlled directly with little time delay. The pressure of the boom oil cylinder is controlled directly and the variation of output force is maintained within a specific range; that control process is applicable to any boom posture since it has no direct relationship with the posture and dynamic characteristics of the boom.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 2, 2017
    Assignee: ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Liang Wan, Shiyang Hua, Jiaqian Wang, Qianxing Luo
  • CONCRETE DISTRIBUTING APPARATUS, AND VIBRATION SUPPRESSION METHOD, CONTROLLER AND DEVICE FOR THE BOOM THEREOF
    Publication number: 20150204090
    Abstract: A boom vibration suppression method for concrete distributing apparatus is disclosed. The boom comprises a boom oil cylinder for respectively driving each section of the boom; the vibration suppression method comprises: detecting the variation of output force of the boom oil cylinder, and maintaining the variation of output force within the range of a preset threshold. The present invention further provides a vibration suppression controller, a vibration suppression device, and a concrete distributing apparatus that implement the method described above. The vibration of the boom is controlled directly with little time delay. The pressure of the boom oil cylinder is controlled directly and the variation of output force is maintained within a specific range; that control process is applicable to any boom posture since it has no direct relationship with the posture and dynamic characteristics of the boom.
    Type: Application
    Filed: December 7, 2012
    Publication date: July 23, 2015
    Applicant: ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Liang Wan, Shiyang Hua, Jiaqian Wang, Qianxing Luo