Device for detecting comprehensive performance of light curtain and safety grating
A technology of safety grating and comprehensive performance, which is applied in the direction of measuring devices, optical instrument testing, machine/structural component testing, etc., and can solve problems such as equipment outage or even accidents, low detection efficiency, and inability to realize comprehensive performance detection
Inactive Publication Date: 2012-05-09
广东省特种设备检测院
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Problems solved by technology
[0003] At present, there are many manufacturers of light curtains and safety gratings in my country, and the output is also large, but the detection technology and devices of the products are still relatively backward. Generally, manual methods are used to test the individual performance of the products, which has low detection efficiency and cannot truly reflect light. The overall performance of screens and safety gratings under actual environmental conditions cannot be tested for comprehensive performance, resulting in uneven product quality. Due to failures and failures, equipment shutdowns and even accidents occur from time to time.
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[0028] Such as figure 1 , image 3 As shown, the light curtain movement mechanical structure of the present invention includes a light curtain guide frame 1-1, a light curtain emitting device 1-2, a light curtain receiving device 1-3, a light curtain vertical dislocation mechanism 1-4, and a relative movement mechanism 1- 5. The light curtain horizontal dislocation mechanism 1-6 and the light curtain rotation dislocation mechanism 1-7 are composed. Use the man-machine interface soft button 3-1 to select the relative movement speed and distance, through the industrial computer 3-2, PLC3-4, relative movement mechanism 1-5, stepper motor 3-5, counter 3-12, I / O module 3-13 jointly complete the adjustment and positioning of the relative movement speed of the light curtain emitting device 1-2 and the light curtain receiving device 1-3 in the light curtain guide frame 1-1; use the soft button 3-1 of the man-machine interface to select the vertical dislocation movement speed of the l...
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The invention discloses a device for automatically detecting the comprehensive performance of a light curtain and a safety grating. The device can be used for automatically detecting the power supply application ranges, effective detection ranges, effective detection heights, blind area detection, quantities of emitting-receiving points, vertical allowable misplacement distances, horizontal allowable misplacement, longitudinal allowable misplacement angels, transverse allowable misplacement angles, response time and light interference resistance of the light curtain and the safety grating according to the practical use conditions, and can be used for automatically performing reliability testing according to set conditions. The device comprises a horizontal moving and measuring mechanism, a horizontal misplacing and measuring mechanism, a vertical misplacing and measuring mechanism, a rotational misplacing and measuring mechanism, a shade vertical moving and measuring mechanism, a shade rotational moving and measuring mechanism, a response time measuring device, a light interference measuring device, a programmable power supply and a computer-PLC (Programmable Logic Controller) control network for the light curtain and the safety grating.
Description
Technical field [0001] The invention relates to a testing device for elevator components, in particular to a device for comprehensive performance testing of light curtains and safety gratings used in mechanical equipment such as elevators and automatic production lines. Background technique [0002] Almost all current elevators use power-driven automatic door closing devices, which often collide with passengers, goods, and vehicles entering and leaving the car during the closing process of the elevator doors, resulting in injuries to passengers, damage to goods, vehicles, and elevator doors, especially It is easy to cause great harm to children and the elderly. The elevator light curtain is a very important protection device to prevent collision accidents and protect the safety of passengers, goods and the equipment itself. In addition, in the field of manufacturing, light curtains and safety gratings are also widely used in some potentially dangerous mechanical equipment (s...
Claims
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IPC IPC(8): G01M11/00
Inventor 郑炯何永胜李桂平
Owner 广东省特种设备检测院