CN-121994153-A - Laser detector for measuring track gauge and coplanarity of elevator guide rail and measuring method

CN121994153ACN 121994153 ACN121994153 ACN 121994153ACN-121994153-A

Abstract

The invention provides a laser detector for measuring the track gauge and coplanarity of an elevator guide rail, which comprises a laser data acquisition unit and a target; the laser ranging sensor is arranged at the front part of the laser data acquisition unit, and the detection end of the laser ranging sensor faces to the direction away from the laser data acquisition unit for detection; the power switch and the charging interface are positioned on the right side of the laser data acquisition unit; the control circuit board is arranged in the lower half area of the interior of the laser data acquisition device and is electrically connected with the laser ranging sensor, the power switch, the keys, the screen and the Bluetooth module, the target is in a right-angle state as a whole, small magnetic steel is arranged on the back of the target as the laser data acquisition device, and the elevator guide rail gauge and the coplanarity laser detector can measure whether the guide rails of the elevator are on the same plane and the distance between the guide rails and the deviation of the guide rails. The measuring instrument can be used for measuring the track gauge and the coplanarity of the elevator guide rail.

Inventors

LI JIYE
GUO JIAQI
DENG LIN
LI YANG
ZHAO YUYIN

Assignees

大连智简电子有限公司
泰安市特种设备检验研究院

Dates

Publication Date: 20260508
Application Date: 20241104

Claims (4)

1. A laser detector for measuring the track gauge of an elevator guide rail and its coplanarity, comprising: the laser ranging sensor is arranged at the front part of the laser data acquisition unit, and the detection end of the laser ranging sensor faces to the direction away from the laser data acquisition unit for detection; the power switch and the charging interface are positioned on the right side of the laser data acquisition unit; The control circuit board is arranged in the lower half area of the interior of the laser data acquisition unit, is electrically connected with the laser ranging sensor, the power switch, the keys, the display screen, the Bluetooth module and the battery and is positioned behind the battery; the whole target is in a right angle state, and the back of the target is provided with small magnetic steel; the laser direction adjusting knob is arranged on the same side as the power switch and the charging interface, and the left-right offset of the laser is controlled through the knob; the angle sensor is connected with the laser ranging sensor and can accurately read the left-right offset angle of the laser ranging sensor; The display screen is positioned right above the laser data acquisition device; the key is positioned on one side of the display screen and used for controlling the left and right movement and confirmation of the display screen; The Bluetooth module can realize communication with the handheld terminal through the control of the internal program of the control circuit board; The detector can measure whether the guide rails of the elevator are on the same plane and the distance between the guide rails and the deviation thereof. The detector can be used for measuring the track gauge and the coplanarity of the elevator guide rail.
2. The measuring method for measuring whether the guide rail of the elevator is on the same plane or not is applied to the guide rail, the laser data acquisition device and the target are adopted, and the magnetic steel of the laser data acquisition device and the target is adsorbed on the opposite surface of the guide rail for detection, and the measuring method is characterized by comprising the following steps: The method comprises the following steps that 1, a right angle surface at the back of a laser data acquisition device is adsorbed on an elevator guide rail, a target is correspondingly placed on the opposite surface of another guide rail laser data acquisition device, the detection end of a laser ranging sensor can be opposite to the target, and the laser point is ensured to be positioned at the center point of the target as far as possible through a laser direction adjusting knob; Step 2, the control circuit board controls the laser ranging sensor to start up through a program and collect real-time numbers, the acquired values are converted into distance values through AD conversion through processing of a lower computer program, filtering processing is carried out on the acquired values, a final result is sent to an upper computer through a Bluetooth module, and the upper computer receives the distance values in real time; Step 3, the control circuit board acquires the angle sensor value through a program and converts the angle sensor value into a degree, and before measuring the coplanar deviation of the guide rail, the standard point of the equipment is required to be determined; Step 4, when the coplanarity of the guide rail is measured, a key of the laser data collector is pressed or a handheld terminal is used, the control circuit board also collects an angle sensor value through a program and converts the angle sensor value into a degree, the current angle b is collected, and the laser data collector collects the track gauge d; and 5, calculating the coplanar deviation value R of the elevator guide rail by the lower computer according to the following formula: R=d*(a-b), Wherein R is the coplanar deviation of the elevator guide rail, d is the track gauge calculated by the laser data collector, and a-b is the angle difference between the actual value and the standard value.
3. A measuring method for measuring guide rail gauge and deviation thereof, which is applied to an elevator, adopting the laser data collector and the target according to claim 1, and specifically comprising the following steps: the method comprises the following steps that 1, a laser data collector is adsorbed to a guide rail in the same equipment placement method as the calculation of the coplanarity deviation of the guide rail of an elevator, and a target is placed on the right opposite side, so that a laser point emitted by the laser data collector can be beaten on the center point of the target; Step 2, the equipment is placed on a standard rail to find a standard value, a control circuit board controls a laser ranging sensor to acquire a distance value, the distance standard value L1 is stored in a singlechip, when the track gauge deviation is measured, a laser spot is ensured to strike a target center point, and a distance value d is acquired at the moment; step 3, obtaining the track gauge deviation E1 by the following formula: E1=L1-d, wherein E1 is the track gauge deviation, L1 is the distance standard value, and d is the actual measurement value.
4. The measuring method for standard value calibration of guide rail gauge and deviation measurement of the guide rail gauge, which is applied to an elevator, adopts the laser data acquisition device and the target according to the claim 1, and specifically comprises the following steps: Step 1, ensuring that a measured first point is a standard zero point, calibrating a zero point value in advance, saving data to a singlechip, and realizing the aim, wherein a pair of standard rails are needed for calibrating the zero point value, and ensuring that the value of the standard zero point is measured as accurately as possible for a plurality of times to average; and 2, obtaining an angle standard value a through the following formula: a=(a1+a2+a3+a4+a5+a6+a7+a8+a9+a10)÷10, wherein a is an average angle standard value, and a1-a 10 are standard values measured on a standard rail for the first time until the tenth time; step 3, obtaining a distance standard value L1 through the following formula: L1=(b1+b2+b3+b4+b5+b6+b7+b8+b9+b10)÷10, wherein L1 is an average distance standard value, and b 1-b 10 are standard values measured on a standard rail for the first time to the tenth time.

Description

Laser detector for measuring track gauge and coplanarity of elevator guide rail and measuring method Technical Field The invention relates to the field of elevator measurement, in particular to a laser detector and a measuring method for measuring the track gauge of an elevator guide rail and the coplanarity detection of the elevator guide rail. Background Coplanarity of elevator guide rails refers to the extent to which two rows of guide rails are in the same plane. Good coplanarity can ensure that the elevator car moves along an accurate track during running, improves running accuracy and stability, can reduce friction and abrasion between guide shoes of the elevator car and guide rails, prolongs service lives of the guide rails and the elevator car, prevents elevator running faults or accidents caused by uneven guide rails, and ensures safe running of the elevator. Elevator guide rails are key components of elevator operation, and accuracy of the track gauge directly affects the stability and safety of the elevator. If the deviation of the track gauge of the guide rail exceeds the allowable range, the running of the elevator is possibly unstable, the problems of jitter, noise and the like are generated, and even the elevator fault or the safety accident can be caused when the deviation is serious. In the case of emergency braking or overspeed of the elevator, the guide rail as a supporting member can absorb kinetic energy of the car or counterweight, stopping the car or counterweight on the guide rail. If the deviation of the track gauge of the guide rail is too large, the braking effect can be affected, and the safety of the elevator is reduced. And too large deviation of the track gauge of the elevator guide rail can cause shaking when the elevator runs, so that riding comfort of passengers is affected. The allowable deviation of the guide rail gauge of the elevator car is within +/-2 mm according to the specification of national standard 'elevator installation and maintenance standard'. In summary, the detection of the rail gauge deviation of the elevator guide rail has important significance in the aspects of ensuring the safe operation of the elevator, improving the riding experience of passengers, reducing the maintenance cost, meeting the regulation requirements and the like. Therefore, the detection of the deviation of the guide rail gauge should be highly emphasized during the installation and maintenance of the elevator. Along with the development and wide application of the laser technology, the laser measurement technology is mature, a convenient door is opened for solving the detection of measuring the track gauge of the elevator guide rail and the coplanarity thereof, the laser detector for measuring the track gauge of the elevator guide rail and the coplanarity thereof can accurately, conveniently and comprehensively measure the track gauge of the elevator guide rail and the coplanarity thereof, great convenience is provided for the inspection and detection work of special equipment, and the work efficiency is also improved. Disclosure of Invention The invention mainly aims to provide a laser detector for measuring the track gauge of an elevator guide rail and the coplanarity detection of the elevator guide rail, which can measure the track gauge of the elevator guide rail and the coplanarity detection of the elevator guide rail according to a specific algorithm. The laser detector for measuring the brake slip quantity of the crane is characterized by comprising a laser ranging sensor, a laser data acquisition unit and a laser detection unit, wherein the laser ranging sensor is arranged at the front part of the laser data acquisition unit, and the detection end of the laser ranging sensor faces to the direction deviating from the laser data acquisition unit for detection; the power switch and the charging interface are positioned on the right side of the laser data acquisition unit; The control circuit board is arranged in the lower half area of the interior of the laser data acquisition unit, is electrically connected with the laser ranging sensor, the power switch, the keys, the display screen, the Bluetooth module and the battery and is positioned behind the battery; the whole target is in a right angle state, and the back of the target is provided with small magnetic steel; the laser direction adjusting knob is arranged on the same side as the power switch and the charging interface, and the left-right offset of the laser is controlled through the knob; the angle sensor is connected with the laser ranging sensor and can accurately read the left-right offset angle of the laser ranging sensor; The display screen is positioned right above the laser data acquisition device; the key is positioned on one side of the display screen and used for controlling the left and right movement and confirmation of the display screen; The Bluetooth module can realize communication with the handheld termi