The invention provides a device for detecting the length and the swing angle of a lifting rope of a bridge crane. The device comprises a light source arranged on a lifting appliance and a light receiving device arranged on a bridge crane trolley, the light receiving device comprises a square shell, a right-angle prism, a light sensing plane and a detection computer system, the right-angle prism and the light sensing plane are both arranged in the square shell, and the detection computer system is in communication connection with the light sensing plane; one right-angle surface of the right-angle prism serves as an incident surface and is arranged on the bottom surface of the square shell, the light sensing plane is arranged on the top surface of the square shell, a through hole is formed in the bottom surface of the square shell and serves as an incident point, light emitted by the light source passes through the through hole, is refracted by the right-angle prism and then is emitted from an emergent point of the inclined plane, and finally a light spot is displayed on the light sensing plane; and the detection computer system is used for calculating the length of the lifting rope and the swing angle of the lifting rope through the position of the light spot. Based on the optical principle of prism refraction, and the detection device can quickly and accurately detect the length and the swing angle of the lifting rope of the bridge crane.
本发明提供了一种桥吊吊绳绳长和摆角检测装置,包括设置在吊具上的光源和设置在桥吊小车上的受光装置,受光装置包括方形壳体、直角三棱镜、感光平面和检测计算机系统,直角三棱镜和感光平面均设置在方形壳体内,检测计算机系统与感光平面通讯连接;直角三棱镜的一直角面作为入射面设置在方形壳体的底面上,感光平面设置在方形壳体的顶面上,方形壳体底面开设有一通孔作为入射点,光源发出的光通过通孔经直角三棱镜折射后从斜面的出射点射出,最后在感光平面上显示光斑;检测计算机系统用于通过光斑的位置计算吊绳的长度以及吊绳的摆动角度。该检测装置基于三棱镜折射的光学原理,可快速准确的检测桥吊吊绳的绳长和摆动角度。
Device for detecting length and swing angle of lifting rope of bridge crane
桥吊吊绳绳长和摆角检测装置
2021-09-24
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
Bridge crane lifting rope swing angle measuring device and use method
European Patent Office | 2021
|Bridge crane lifting rope swing angle detection device based on electromagnetic induction principle
European Patent Office | 2021
|European Patent Office | 2023
|