Meishan Crrc Fastening System Co., Ltd

Crrc Meishan Co., Ltd.

Tao Deng

Lin Wei Yang

Zhiqiang Li

Yu Liu

Wei Li

Xiangyun Zhao

Long Guo

Tao Yu

Xu He

Yunlong Jia

Guangcheng Dai

Min Lei

Chengyong Liu

Ji Zhu

Hanjiang Luo

Xianfeng Zhang

Yungui Wang

Pu Wang

Aimin Wang

Shuping Pan

Shibo Wang

Qiang Liu

Chuanqi Li

Zongquan Zhou

Xin Zhang

Kun Li

Hengli Li

Rui Zhang

Chang Wu

Song Li

Shibin Zuo

A single groove single-sided fastener comprises: a rivet consisting of a rivet head, a polish rod, a locking groove, a tail pulling groove and a tail tooth in sequence, and a lantern ring consisting of a sleeve and a dead head; a tail of the rivet is of a single groove short-tail structure, a ratio of a length of the tail pulling groove to a total length of the tail tooth is 0.1&#x2dc;1.5, an included angle between a bottom generatrix of the tail pulling groove and an axis of the rivet is &#x2212;30&#xb0;&#x2dc;0&#xb0;, two axial ends of the bottom of the tail pulling groove and the tail of the tail tooth are of a fillet transition structure, a ratio of a length of a straight part of the tail tooth to the total length of the tail tooth is 0.1&#x2dc;1.

Single groove single-sided fastener and installation method thereof

An intelligent riveting system comprising a hydraulic riveting tool (), a riveting position identification system, a riveting displacement detection system, a riveting pressure detection system and a central processing system, wherein the central processing system acquires image information and carries out position identification, encoding and storage to form riveting position data in one-to-one correspondence, acquires real-time displacement data and riveting oil pressure data of each riveting position to form real-time data corresponding to riveting displacement values and riveting pressure values, and compares same with a standard to carry out quality determination. By means of the intelligent riveting system, a riveting position and an installation parameter are automatically identified and acquired, and the riveting quality is automatically determined; and by means of storing data during riveting and installation, the traceability of rivet installation quality can be achieved.

Intelligent riveting system

The present invention discloses a riveting robot, comprising: a robot part provided on a chassis, and detachably coupled with a riveting tool part through a hydraulically quick change disk; a visual position identification part provided on a side of the hydraulically quick change disk and secured on the sixth axis of the front end of the robot part; an automatic rivet feeding part provided on a mounting baseplate which is secured on a chassis through a two-stage vibration damping structure; a riveter tailing material collection part used for collecting tailing materials produced during riveting; a riveting quality judgment part used for collecting riveting data, and processing and generating a riveting curve to realize judgment of the riveting quality. A riveting robot system provided in the present invention can realize unmanned quick mounting of a pulling rivet at a specific riveting position; a vibration damping structure effectively isolates interference of riveting operation of a robot from a vibration source; radial and axial damping mechanisms can absorb axial and radial impact energies during the process of rivet pulling and mounting, ensuring that the operating accuracy of the riveting robot system and service life of the riveting robot mechanism.

Riveting robot system

A sub-frame radial bogie comprises wheelsets, a side frame, a swing bolster, a wheelset radial device and a brake gear. Bearing adapters () forming the wheelset radial device are fixedly connected with the sub-frame () via pulling rivets (), and each group of the bearing adapters () is bilaterally symmetrical in structure with a symmetry plane (A). The sub-frame () comprises an arm () and an end (); a sub-frame connection hole () is arranged on the end (); transverse positioning bosses () are arranged on the bearing adapters (); and an arc groove () and symmetrical sub-frame connection holes () are arranged on a connection base (). The bearing adapters use the same standard structure, hence, the more precise design and machining can be realized, and the cost is reduced, and meanwhile, the maintenance technique of the sub-frame is improved, and the maintenance cost is reduced.

Sub-frame radial bogie

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Meishan, China

Tao Deng