CN117125584A - Escalator operation quality detection device and method - Google Patents
Escalator operation quality detection device and method Download PDFInfo
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- CN117125584A CN117125584A CN202311056042.2A CN202311056042A CN117125584A CN 117125584 A CN117125584 A CN 117125584A CN 202311056042 A CN202311056042 A CN 202311056042A CN 117125584 A CN117125584 A CN 117125584A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The application discloses an escalator running quality detection device, which comprises: the handrail belt speed measuring mechanism, the step speed measuring mechanism and the micro control system are respectively connected with the handrail belt speed measuring mechanism and the step speed measuring mechanism; the handrail belt speed measuring mechanism comprises: the vacuum chuck, the adjusting mechanism and the photoelectric reflection sensor are sequentially connected; the vacuum sucker is used for being adsorbed on the escalator; the adjusting mechanism is used for adjusting the angle of the photoelectric reflection sensor; the photoelectric reflection sensor is used for emitting light beams and irradiating the surface of the handrail belt; a reflective sheet is stuck on the handrail belt; the step speed measuring mechanism comprises: a laser ranging sensor and a reflecting curtain plate; the laser ranging sensor is arranged at the outlet of the escalator and used for emitting laser beams; the light reflecting curtain plate is arranged on the steps of the escalator and used for reflecting laser beams emitted by the laser ranging sensor.
Description
Technical Field
The application relates to the field of elevator detection devices, in particular to an escalator running quality detection device and method.
Background
Most public places such as shopping malls, subway stations, railway stations and airports are provided with escalator, so that convenience is brought to the masses, and potential safety hazards exist. Along with the sudden rapid advance of the number of the escalator and the gradual aging of equipment, the situation of safety is increasingly severe, accidents such as sudden overspeed and stop of the escalator are frequent in all places, accidents of a plurality of brands of escalator exist in the early stage, even casualties occur, and equipment aging, maintenance and supervision are important reasons.
Passengers fall easily in the process of ascending and descending the escalator running at overspeed; in emergency, the braking speed is too fast, the braking distance is too long, the passengers are possibly damaged by falling, even the trampling accidents are caused, and the life safety of the passengers is threatened; in addition, when the handrail belt operation lags behind the steps/pallets, the passenger has the possibility of falling backward. Therefore, during the installation inspection, supervision inspection and periodical inspection of the escalator, the running quality of the escalator is particularly important, and the detection of the running quality of the escalator has very important significance for guaranteeing the life and property safety of people
Disclosure of Invention
The embodiment of the application aims to provide an escalator running quality detection device and method, which are used for detecting the running speed of steps and the running speed of a handrail belt, comparing the steps with the running speed of the handrail belt and judging whether the running speed of the handrail belt meets the requirement.
In order to solve the technical problems, the application adopts the following technical scheme:
the application provides an escalator running quality detection device, comprising: the handrail belt speed measuring mechanism, the step speed measuring mechanism and the micro control system are respectively connected with the handrail belt speed measuring mechanism and the step speed measuring mechanism;
the handrail belt speed measuring mechanism comprises: the vacuum chuck, the adjusting mechanism and the photoelectric reflection sensor are sequentially connected;
the vacuum sucker is used for being adsorbed on the escalator;
the adjusting mechanism is used for adjusting the angle of the photoelectric reflection sensor;
the photoelectric reflection sensor is used for emitting light beams and irradiating the surface of the handrail belt; a reflective sheet is stuck on the handrail belt;
the step speed measuring mechanism comprises: a laser ranging sensor and a reflecting curtain plate;
the laser ranging sensor is arranged at the outlet of the escalator and used for emitting laser beams;
the light reflecting curtain plate is arranged on the steps of the escalator and used for reflecting laser beams emitted by the laser ranging sensor.
In some embodiments, the micro-control system includes a human-computer interaction module for human-computer interaction by the operation and maintenance personnel.
In some embodiments, the micro-control system further comprises a thermal printer for printing the detection results.
The application also provides a method for detecting the running quality of the escalator, which is characterized in that the device for detecting the running quality of the escalator is adopted; the method comprises the following steps: a handrail belt speed measuring step and a step speed measuring step;
the handrail belt speed measurement comprises the following steps:
adsorbing the vacuum sucker on the escalator, and adjusting the angle of the adjusting mechanism to enable the light beam emitted by the photoelectric reflection sensor to irradiate on the surface of the handrail;
recording time T1 when the photoelectric reflection sensor irradiates the reflecting sheet on the handrail for the first time; when the photoelectric reflection sensor irradiates the reflective sheet on the handrail for the second time, recording time T2, and transmitting data detected by the photoelectric reflection sensor to the micro-control system;
the micro control system calculates the running speed of the handrail belt according to the length L of the handrail belt;
the step speed measurement comprises the following steps:
the laser ranging sensor is arranged at the outlet of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps;
a reflective curtain plate is arranged on the step, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate;
opening the escalator to enable the escalator to be in an operating state;
the laser ranging sensor calculates the distance li between the laser ranging sensor and the reflecting screen plate at the moment ti, and transmits data to the micro control system;
the micro control system calculates the running speed of the step, the acceleration of the step when the step is started and the deceleration of the step when the step is stopped;
the method further comprises the steps of: the micro control system compares the running speed of the steps with the running speed of the handrail belt and judges whether the running speed of the handrail belt meets the requirement.
In some embodiments, the method further comprises: a step of measuring a stopping distance;
the stopping distance measurement comprises the following steps:
the laser ranging sensor is arranged at the outlet of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps;
a reflective curtain plate is arranged on the step, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate;
opening the escalator to enable the escalator to be in a stable running state;
after stable running for a period of time, exciting the laser ranging sensor to calculate the distance l between the laser ranging sensor and the reflecting screen plate 1 Simultaneously, triggering an emergency stop button of the escalator;
after the escalator stops running, exciting the laser ranging sensor again to calculate the distance l between the laser ranging sensor and the reflecting curtain plate 2 ", and transmitting the data to the micro-control system;
the micro control system calculates the stopping distance of the escalator as l 1 ”-l 2 ”。
With the rapid development of national economy, the promotion of the living standard and the working efficiency of people is promoted, various high-rise buildings are continuously appeared and increasingly popular, and elevators are widely applied to houses, office buildings, shopping malls, stations, airports and public transportation hubs as indispensable special transportation means for providing vertical transportation in the buildings. The elevator in China has the first world of quantity of 628 ten thousand. With the continuous increase of the elevator preservation amount in China, elevator safety accidents also happen continuously.
Whether the elevator runs safely or not can be judged by checking and detecting the elevator and evaluating the safety state of the elevator. At present, related national standards and specifications have definitely provided for inspection and operation quality of an escalator, such as "manufacturing and installation safety Specification of an escalator and an automatic pavement" and "Elevator supervision inspection and periodic inspection rule-an escalator and an automatic pavement", wherein main detection parameters include: deviation of the nominal speed from the actual running speed, starting acceleration, braking deceleration, stopping distance, synchronization rate between the two side handrail belts and the steps/pallets, etc. Passengers fall easily in the process of ascending and descending the escalator running at overspeed; in emergency, the braking speed is too fast, the braking distance is too long, the passengers are possibly damaged by falling, even the trampling accidents are caused, and the life safety of the passengers is threatened; in addition, when the handrail belt operation lags behind the steps/pallets, the passenger has the possibility of falling backward. Therefore, during the installation inspection, supervision inspection and periodical inspection of the escalator, the running quality of the escalator is particularly important, and the detection of the running quality of the escalator has very important significance for guaranteeing the life and property safety of people
The existing national standard and inspection rule does not specify which specific detection instrument and detection method are adopted, and detection is mainly implemented by means of manual marking and naked eye interpretation at present, so that the method is not scientific, the human factors are large, and the data error is large. Some domestic detection institutions and enterprises research detection instruments and detection methods for the running quality of the escalator, and develop corresponding instruments. Xu Lei and the like develop a device for detecting the stopping distance of an escalator by utilizing a grating disc, which utilizes the friction force of a handrail belt to drive the grating disc to rotate to measure the running speed of the handrail belt, and takes the obtained result as the running speed of the steps of the escalator, but the running speed of the handrail belt is actually larger than the running speed of the steps, so that the measuring result of the device is inaccurate. After the image sensor is adopted to obtain the running displacement of the steps, the current detection module is used for measuring the starting and stopping time of the escalator motor, so that the step speed and the stopping distance are obtained.
Hu Shizhang et al developed an escalator performance test device that was measured by contact of the rollers with the steps/tread and handrail. The detection principle and the detection method are that the speed of the steps/pedals is detected through the contact of the rollers and the steps/pedals which horizontally run, and the running speed of the handrail belts at two sides is detected through the contact of the rollers and the handrail belts, then data acquisition is carried out through a photoelectric encoder, and finally data processing is carried out through a computer system.
A large number of detection practices show that the detection scheme adopting roller transmission has the following problems:
(1) Since the rollers are in contact with only the surface of the steps/tread or handrail, not as well as the gear pair, a constant transmission ratio cannot be ensured, so that the phenomenon of roller slip cannot be excluded.
(2) The roller is made of flexible plastic, and the roller can be worn after long-term use. The roller can deform after being pressed against the contact surface in summer in high-temperature seasons, and the roller is hard and is easier to slip in winter.
(3) The toothed surfaces of the steps/pallets often adhere to dirt, which can result in poor contact of the rollers with the moving surface, which occasionally causes fluctuations or jerks during operation of the escalator/travelator.
The defects of the roller transmission detection scheme can cause lower detection efficiency and inaccurate detection results, and especially when the detection results are at the boundary of qualification judgment, detection personnel are difficult to give out accurate detection conclusion, and timeliness and authority of a detection report are affected. Based on the above, it is important to develop a novel escalator operation quality detection device to improve detection accuracy and detection efficiency.
The application provides an escalator running quality detection device and method, which aims at solving the problems of large error and low efficiency of the existing detection technology, provides a non-contact escalator running quality detection method and designs a corresponding detection device. The method adopts a non-contact photoelectric reflection sensor, and realizes the rapid detection of the running speed of the escalator handrail belt through a rapidly detachable vacuum chuck. By adopting a non-contact reflective laser ranging sensor and through an angle-adjustable reflective curtain plate, the rapid synchronous detection of the running speed, the stopping distance and the stopping deceleration of the steps is realized.
According to the device and the method for detecting the running quality of the escalator, through corresponding experimental comparison, the result shows that the detection process of the non-contact type escalator running quality detection method is not affected by the environment of a detection site, the detection precision is high, and the consistency of detection results is good. The device can provide powerful data support for the safety sheet evaluation of the escalator, and simultaneously provides a reliable and necessary inspection and detection instrument for the maintenance unit, the special equipment detection mechanism and the special equipment monitoring mechanism of the escalator. Along with the integration of special equipment inspection and detection mechanisms and the opening of the detection market, the detection device has remarkable economic and social benefits and wide application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Furthermore, the drawings in the following description may be regarded as schematic illustrations, and are not limiting of the actual size of the products, the actual flow of the methods, etc. according to the embodiments of the present disclosure.
Fig. 1 is a schematic structural view of an escalator operating quality detection device according to some embodiments of the present disclosure;
fig. 2 is a schematic diagram of a detection principle of a handrail belt speed measuring mechanism according to some embodiments of the present disclosure;
FIG. 3 is a schematic illustration of a detection principle of a step speed measurement mechanism in accordance with some embodiments of the present disclosure;
fig. 4 is a flow chart of an escalator operational quality detection method according to some embodiments of the present disclosure;
FIG. 5 is a flow chart of a stop distance measurement step in accordance with some embodiments of the present disclosure;
FIG. 6 is a graph of handrail belt operating speed and step operating speed obtained by two detection schemes in a validation test;
fig. 7 is a graph of escalator stopping distance obtained by two detection schemes in a verification test.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by one of ordinary skill in the art based on the embodiments provided by the present disclosure are within the scope of the present disclosure.
Throughout the specification and claims, the term "comprising" is to be interpreted as an open, inclusive meaning, i.e. "comprising, but not limited to, unless the context requires otherwise. In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
An embodiment of the present application provides an escalator operation quality detection device, as shown in fig. 1, including: the handrail belt speed measuring mechanism, the step speed measuring mechanism and the micro control system are respectively connected with the handrail belt speed measuring mechanism and the step speed measuring mechanism.
The handrail belt speed measuring mechanism is arranged on one side of the handrail belt and used for measuring the linear running speed of the handrail belt; the step speed measuring mechanism is arranged on the escalator and used for measuring operation information of steps.
The running information includes the running speed of the steps, the acceleration at the start of the steps, and the deceleration at the stop of the steps.
In some embodiments, the handrail belt speed measuring mechanism comprises: the vacuum chuck, the adjusting mechanism and the photoelectric reflection sensor are sequentially connected; the vacuum sucker is used for being adsorbed on the escalator; the adjusting mechanism is used for adjusting the angle of the photoelectric reflection sensor; the photoelectric reflection sensor is used for emitting light beams and irradiating the surface of the handrail belt; the handrail belt is stuck with a reflective sheet.
Illustratively, the vacuum chuck may be attached to the glass guard of the escalator to ensure stability of the handrail belt speed measuring mechanism.
Illustratively, the adjustment mechanism may adjust the height and angle of the photoelectric reflective sensor such that light emitted by the photoelectric reflective sensor impinges on the handrail belt surface.
Illustratively, the retroreflective sheeting has an elongated strip shape with a strip width of about 5mm.
As shown in FIG. 2, when the light beam emitted by the photoelectric reflection sensor irradiates the reflective sheet on the handrail belt, the time T is recorded 1 When the light beam emitted by the photoelectric reflection sensor irradiates the reflecting sheet on the handrail again, the time T is recorded 2 Transmitting data detected by photoelectric reflection sensing to a micro control system, and calculating the running speed of the handrail to be v=L/(T) according to the length L of the handrail by the micro control system 2 -T 1 )。
In some embodiments, as shown in fig. 3, the step speed measurement mechanism includes: a laser ranging sensor and a reflecting curtain plate; the laser ranging sensor is arranged at the outlet of the escalator and used for emitting laser beams; the reflective curtain plate is arranged on the steps of the escalator and used for reflecting laser beams emitted by the laser ranging sensor.
The angle of the laser ranging sensor can be adjusted, and the direction of the laser ranging sensor for emitting laser beams is parallel to the running direction of the steps and also parallel to the glass guard plates on two sides.
The angle of the reflecting curtain plate can also be adjusted, so that the laser beam emitted by the laser ranging sensor can vertically strike the reflecting curtain plate.
The laser ranging sensor calculates at t according to the reflected light rays i Distance l between time laser distance measuring sensor and reflecting screen plate i And transmitting the data to a micro control system, wherein the micro control system calculates the running speed of the steps, the acceleration of the steps when the steps are started and the deceleration of the steps when the steps are stopped.
The micro control system compares the running speed of the steps with the running speed of the handrail belt and judges whether the running speed of the handrail belt meets the requirement.
In some embodiments, the micro-control system includes a human-machine interaction module for human-machine interaction by the operation and maintenance personnel.
The man-machine interaction module can display data measured by the handrail belt speed measuring mechanism and the step speed measuring mechanism, and meanwhile, operation and maintenance personnel can set test parameters, such as the inclination angle, the rated speed and the length of the handrail belt of the escalator through the man-machine interaction module.
In some examples, the micro-control system further comprises a thermal printer for printing the detection results.
The micro control system can directly print the detection result of the escalator through the thermal printer on the detection site, is used for judging whether the detection result is qualified on the site, and can send a detection report according to the detection result.
The embodiment of the application also provides a method for detecting the running quality of the escalator, which adopts the device for detecting the running quality of the escalator, and comprises the following steps: a handrail belt speed measuring step and a step speed measuring step.
In some embodiments, as shown in fig. 4, the handrail belt speed measurement includes the steps of: S011-S013.
And S011, adsorbing the vacuum chuck on the escalator, and adjusting the angle of the adjusting mechanism to enable the light beam emitted by the photoelectric reflection sensor to irradiate on the surface of the handrail.
S012, recording time T when photoelectric reflection sensor irradiates the reflective sheet on the handrail belt for the first time 1 The method comprises the steps of carrying out a first treatment on the surface of the Recording time T when the photoelectric reflection sensor irradiates the reflecting sheet on the handrail belt for the second time 2 And transmits the data detected by the photoelectric reflection sensor to the micro control system.
And S013, the micro control system calculates the running speed of the handrail belt according to the length L of the handrail belt.
Running speed v=l/(T) of the handrail belt 2 -T 1 )。
In some embodiments, the step speed measurement includes the steps of: S021-S025.
S021, setting the laser ranging sensor at the exit of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps.
S022, arranging a reflective curtain plate on the step, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate.
S023, opening the escalator to enable the escalator to be in a running state.
The running states of the escalator comprise a steady running state, a decelerating running state during braking and an accelerating running state during starting.
S024, calculating at t by using laser ranging sensor i Distance l between time laser distance measuring sensor and reflecting screen plate i And transmits the data to the micro-control system.
Where i=1, 2,3, … ….
S025, the micro-control system calculates the running speed of the steps, the acceleration when the steps are started and the deceleration when the steps are stopped.
Illustratively, the laser ranging sensor senses data (t 0 ,l 0 )、(t 1 ,l 1 )、(t 2 ,l 2 )……(t n-1 ,l n-1 )、(t n ,l n ) The operational speed can be calculated as shown in formula (1).
Thereby finding the average speed:
this speed is the actual running speed of the steps in the running direction.
Illustratively, the laser ranging sensor senses data (t 0 ’,l 0 ’)、(t 1 ’,l 1 ’)、(t 2 ’,l 2 ’)……(t n-1 ’,l n-1 ’)、(t n ’,l n '), the operation speed can be calculated as shown in the formula (3).
Thereby finding the average speed:
this speed is the actual running speed of the steps in the running direction.
Meanwhile, according to the data measured by the laser ranging sensor, the acceleration/deceleration during the stop/start process can be calculated as shown in the formula (5).
The average acceleration/deceleration is thus determined as:
the acceleration/deceleration is the actual acceleration/deceleration of the steps along the running direction.
The method further comprises the steps of: and S100, comparing the running speed of the steps with the running speed of the handrail belt by the micro-control system, and judging whether the running speed of the handrail belt meets the requirement.
In some embodiments, as shown in fig. 5, the method further comprises: a stop distance measurement step, the stop distance measurement comprising the steps of: S031-S036.
S031, the laser ranging sensor is arranged at the exit of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps.
S032, a reflective curtain plate is arranged on the steps, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate.
S033, opening the escalator to enable the escalator to be in a stable running state.
S034, after stable operation for a period of time, exciting the laser ranging sensor to calculate the distance l between the laser ranging sensor and the reflecting screen plate 1 ", while at the same time, triggering the scram button of the escalator.
S035，After the escalator stops running, exciting the laser ranging sensor again to calculate the distance l between the laser ranging sensor and the reflecting curtain plate 2 ", and transmits the data to the micro-control system.
S036, the micro control system calculates the stopping distance of the escalator to be l 1 ”-l 2 ”。
Verification experiment
In order to verify the feasibility and the accuracy of the non-contact escalator running quality detection method and device, indoor and outdoor escalators in a certain market are detected, and compared with the traditional roller detection device. The detection scheme 1 is set for detection by adopting a traditional roller transmission device, and the detection scheme 2 is set for detection by adopting the non-contact type measuring device disclosed by the application. The main parameters of the escalator for the market are shown in table 1.
Table 1 shows the basic parameters of escalator
The handrail belt running speed, the step running speed, the stopping distance and the stopping deceleration parameters of the two escalator are respectively detected by adopting two detection schemes. In order to avoid instability of the detection result due to detection errors, 5 measurements of the above parameters were performed using two detection schemes, respectively, the detection results of which are shown in tables 2 and 3. And drawing comparison curves of the results of multiple measurements of the two escalators under two detection schemes according to the detection results, as shown in fig. 6 and 7 respectively.
Table 2 detection results of two detection schemes of indoor escalator
Table 3 detection results of two detection schemes of outdoor escalator
The comparison of the detection results obtained in tables 2 and 3 and the comparison curves of the detection results shown in fig. 6 and 7 can be seen, the consistency of the scheme 2 is better in the multiple inspection results of the same escalator, and the detection results of the parameters of the scheme 1 have larger fluctuation; for two escalators with the same parameters, namely indoor escalator and outdoor escalator, the consistency of the two groups of detection results of the scheme 2 is good, and the fluctuation of the two groups of detection results of the scheme 1 is large. Since the inspection rules of the escalator and the moving walk provide that the running speed of the handrail belt is 0 to 2% with respect to the actual running speed of the steps, it is clear from fig. 6 that when the inspection is performed by the scheme 1, the tolerance of 1 out of 5 inspections of the escalator in the room is more than 2%, and the tolerance of the escalator in the room is more than 2% up to 3 out of 5 inspections. Therefore, when the scheme 1 is adopted for field inspection, inspection staff is extremely easy to give out incorrect detection conclusion due to the fluctuation of the multiple inspection results, so that the operation quality of the escalator cannot be accurately evaluated, and potential safety hazards cannot be eliminated. The consistency of the detection result in the scheme 2 is good, which indicates that the detection method is stable and the detection precision of the detection device is high.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present application without departing from the spirit and scope of the technical solution of the present application.
Claims (5)
1. An escalator operating quality detection device, comprising:
the handrail belt speed measuring mechanism, the step speed measuring mechanism and the micro control system are respectively connected with the handrail belt speed measuring mechanism and the step speed measuring mechanism;
the handrail belt speed measuring mechanism comprises: the vacuum chuck, the adjusting mechanism and the photoelectric reflection sensor are sequentially connected;
the vacuum sucker is used for being adsorbed on the escalator;
the adjusting mechanism is used for adjusting the angle of the photoelectric reflection sensor;
the photoelectric reflection sensor is used for emitting light beams and irradiating the surface of the handrail belt; a reflective sheet is stuck on the handrail belt;
the step speed measuring mechanism comprises: a laser ranging sensor and a reflecting curtain plate;
the laser ranging sensor is arranged at the outlet of the escalator and used for emitting laser beams;
the light reflecting curtain plate is arranged on the steps of the escalator and used for reflecting laser beams emitted by the laser ranging sensor.
2. The escalator operating quality inspection device of claim 1, wherein the micro control system comprises a human-machine interaction module for human-machine interaction by operation and maintenance personnel.
3. The escalator operating quality inspection device of claim 2, wherein the micro control system further comprises a thermal printer for printing the inspection results.
4. A method for detecting the running quality of an escalator, characterized in that an escalator running quality detecting device according to any one of claims 1 to 3 is employed; the method comprises the following steps: a handrail belt speed measuring step and a step speed measuring step;
the handrail belt speed measurement comprises the following steps:
adsorbing the vacuum sucker on the escalator, and adjusting the angle of the adjusting mechanism to enable the light beam emitted by the photoelectric reflection sensor to irradiate on the surface of the handrail;
recording time T when the photoelectric reflection sensor irradiates the reflecting sheet on the handrail belt for the first time 1 The method comprises the steps of carrying out a first treatment on the surface of the Recording time T when the photoelectric reflection sensor irradiates the reflecting sheet on the handrail belt for the second time 2 And photoelectrically reflectingThe data detected by the shooting sensor is transmitted to a micro-control system;
the micro control system calculates the running speed of the handrail belt according to the length L of the handrail belt;
the step speed measurement comprises the following steps:
the laser ranging sensor is arranged at the outlet of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps;
a reflective curtain plate is arranged on the step, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate;
opening the escalator to enable the escalator to be in an operating state;
the laser ranging sensor calculates at t i Distance l between time laser distance measuring sensor and reflecting screen plate i And transmitting the data to the micro control system;
the micro control system calculates the running speed of the step, the acceleration of the step when the step is started and the deceleration of the step when the step is stopped;
the method further comprises the steps of: the micro control system compares the running speed of the steps with the running speed of the handrail belt and judges whether the running speed of the handrail belt meets the requirement.
5. The escalator operating quality detection method according to claim 1, wherein the method further comprises: a step of measuring a stopping distance;
the stopping distance measurement comprises the following steps:
the laser ranging sensor is arranged at the outlet of the escalator, so that the laser beam emitted by the laser ranging sensor is parallel to the running direction of the steps;
a reflective curtain plate is arranged on the step, so that laser beams emitted by the laser ranging sensor can vertically strike the reflective curtain plate;
opening the escalator to enable the escalator to be in a stable running state;
after stable running for a period of time, exciting the laser ranging sensor to calculate the distance l between the laser ranging sensor and the reflecting screen plate 1 ", at the same time, trigger the automaticAn emergency stop button of the escalator;
after the escalator stops running, exciting the laser ranging sensor again to calculate the distance l between the laser ranging sensor and the reflecting curtain plate 2 ", and transmitting the data to the micro-control system;
the micro control system calculates the stopping distance of the escalator as l 1 ”-l 2 ”。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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