公开(公告)号：US20240300128A1

公开(公告)日：2024-09-12

申请号：US18321927

申请日：2023-05-23

Applicant: JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD.

Inventor： Xinchun CHEN ,  Mengxue BI ,  Sen FENG

IPC: B26D1/00 ,  B26D1/143

CPC classification number: B26D1/0006 ,  B26D1/143 ,  B26D2001/002 ,  B26D2001/0053 ,  B26D2001/006

Abstract: A gear slicing tool and a manufacture method thereof are provided. The gear slicing tool includes a gear slicing tool body having concave and/or convex parts formed on a tool surface of the gear slicing tool body and a composite film layer disposed on the tool surface. The composite film layer includes a metal film layer, a transition film layer, and a functional film layer. A material of the metal film layer includes a metal. The transition film layer includes a first film layer and a second film layer. A material of the first film layer includes a nitride of the metal. A material of the second film layer includes a nitride of an alloy of the metal and aluminum. A material of the functional film layer includes a nitride of an alloy of the metal, aluminum, and silicon.

公开(公告)号：US20230392619A1

公开(公告)日：2023-12-07

申请号：US18033073

申请日：2021-04-15

Applicant: JiangSu XCMG Construction Machinery Research Institute LTD.

Inventor： Xinchun CHEN ,  Xuemei ZONG ,  Can WANG

IPC: F15B15/28

CPC classification number: F15B15/2861

Abstract: A device for detecting the elongation of a hydraulic cylinder includes an electric signal conversion device, a ruler and a positional magnetic ring. The electric signal conversion device is disposed at the bottom of a cylinder barrel. The ruler has an end fixedly connected to the electric signal conversion device, as well as the other end movably extending into a piston rod. The positional magnetic ring is fixedly connected to a piston and the positional magnetic is movably disposed around the periphery of the ruler. When the positional magnetic ring is located at different positions of the ruler, different circuits are turned on to transmit a voltage or current signal corresponding to the positions of the ruler to the electric signal conversion device, so as to obtain a position of the positional magnetic ring on the ruler, such that the elongation of the piston rod is obtained.