CN112265882A - Method for detecting speed synchronization deviation of escalator hand strap and step - Google Patents
Method for detecting speed synchronization deviation of escalator hand strap and step Download PDFInfo
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- CN112265882A CN112265882A CN202011192869.2A CN202011192869A CN112265882A CN 112265882 A CN112265882 A CN 112265882A CN 202011192869 A CN202011192869 A CN 202011192869A CN 112265882 A CN112265882 A CN 112265882A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
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Abstract
The invention relates to a method for detecting the synchronous deviation of the speed of a hand strap and a step of an escalator, belonging to the technical field of detection of escalators or moving sidewalks, and comprising the following steps: s1, installing a marking module at the designated position of the handrail belt to be detected, enabling the marking module to move along with the handrail belt and generate a mark at the designated step, thereby enabling the mark to generate corresponding deviation due to the synchronous deviation of the speeds of the handrail belt and the step; s2, measuring the offset value generated by the mark in the set time period by using an offset measuring module; s3, installing a step running distance measuring module at the horizontal step of the entrance or the exit of the escalator, and measuring the running distance of the horizontal step by the step running distance measuring module; and S4, controlling the comprehensive display control module to obtain the deviation value and the horizontal stair running distance, and calculating the ratio of the deviation value and the horizontal stair running distance to obtain the synchronous speed deviation of the handrail belt to be detected and the stair running.
Description
Technical Field
The invention relates to a method for detecting the synchronous deviation of the speed of a hand strap and a step of an escalator, belonging to the field of escalator detection.
Background
With the rapid development of economy and the continuous deepening of urbanization, the use of the escalator is popularized, and the safety accidents of the escalator are increased day by day. Wherein, the handrail speed and the step speed are not synchronous/step speed caused by the failure of a transmission system, the aging of the handrail and the like, and passengers are easy to be hurt. The accident is one of the frequent accidents of the escalator, so that the hidden danger can be found as soon as possible by an accurate detection means, and the method is one of effective ways for reducing the safety accidents of the escalator. However, the existing detection device is troublesome to install and complex in detection process.
Disclosure of Invention
The invention provides a method for detecting the synchronous deviation of the speed of a hand strap and a step of an escalator, which indirectly measures the synchronous deviation of the speed of the hand strap and the step by measuring the running distance of the hand strap and the step in the same time period.
The technical scheme of the invention is a method for detecting the synchronous deviation of the speeds of a hand strap and a step of an escalator, which comprises the following steps:
s1, installing a marking module at the designated position of the handrail belt to be detected, enabling the marking module to move along with the handrail belt and generate a mark at the designated step, thereby enabling the mark to generate corresponding deviation due to the synchronous deviation of the speeds of the handrail belt and the step;
s2, measuring the offset value generated by the mark in the set time period by using an offset measuring module;
s3, installing a step running distance measuring module at the horizontal step of the entrance or the exit of the escalator, and measuring the running distance of the horizontal step by the step running distance measuring module;
and S4, controlling the comprehensive display control module to obtain the deviation value and the horizontal stair running distance, and calculating the ratio of the deviation value and the horizontal stair running distance to obtain the synchronous speed deviation of the handrail belt to be detected and the stair running.
Further, the ratio of the two values is calculated in the step S4 to obtain the synchronous speed deviation between the handrail belt to be measured and the step, and the specific calculation formula is as follows: offset value/horizontal step travel distance.
The detection method of the technical scheme of the invention is based on a detection device for the synchronous deviation of the escalator hand strap and the step speed, and the device comprises the following steps: the marking module is arranged at the designated position of the hand strap and moves along with the hand strap and is used for generating a mark at the designated step, and the mark can generate corresponding offset due to the synchronous deviation of the speeds of the hand strap and the step; the offset measuring module is used for measuring an offset value generated by a mark in a set time period; the step running distance measuring module is used for measuring the horizontal step running distance in the set time period; and the comprehensive display control module is used for acquiring data measured by the offset measuring module and the step travel distance measuring module and calculating the synchronous deviation of the speed of the hand strap and the step.
Further, the marking module includes: the laser emitter is fixedly arranged at the designated position of the handrail belt to be detected, moves along with the handrail belt and is used for forming light spots on the designated steps, and the light spots generate corresponding offset due to the synchronous deviation of the speeds of the handrail belt and the steps; and the light spot position marking module is used for marking the initial position and the final position of the light spot in the set time period.
Furthermore, the deviation measurement module adopts a graduated scale, the graduated scale is used for measuring the light spot space between the initial position and the final position of the light spot, and the comprehensive display control module receives the manually input light spot space.
Furthermore, the offset measurement module adopts the distancer, the distancer is used for measuring the facula interval of facula initial position and final position, synthesize and show the accuse module and be connected with the distancer, the facula interval that the automatic acquisition distancer measured.
Further, the step travel distance measuring module is fixed at a horizontal step of an entrance or an exit of the escalator through a fixing bracket.
Further, step working distance measurement module adopts meter rice ware, meter rice ware includes gyro wheel and rotary encoder, gyro wheel and rotary encoder coaxial coupling.
Furthermore, the fixed bolster includes the support frame, support frame one end is fixed on rotary encoder through adjustable screw, and the other end passes through vacuum chuck to be fixed on the apron board at horizontal step level, the level step is hugged closely to the gyro wheel.
Furthermore, rotary encoder is connected with comprehensive display control module, synthesize display control module still is used for reading and showing the distance of operation and the corresponding time distance curve of the horizontal step that meter rice ware was measured.
The invention has the beneficial effects that: the method for detecting the synchronous deviation of the speed of the hand strap and the step of the escalator is simple in detection process, the used detection device is simple in structure, convenient to install and easy to operate, and the synchronous deviation of the speed of the hand strap and the step can be accurately measured.
Drawings
FIG. 1 is a flow chart of a detection method according to the present invention;
FIG. 2 is a block diagram showing the components of the detecting device according to the present invention;
fig. 3 is a schematic view showing a usage scenario of the detection device at the entrance of the escalator according to the embodiment of the invention;
fig. 4 is a schematic view showing a use scenario of the detection device at the exit of the escalator according to the embodiment of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items. The use of any and all examples, or exemplary language ("e.g.," such as "or the like") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
Referring to fig. 1, an embodiment of the present invention discloses a method for detecting a synchronous deviation between a handrail belt and a step speed of an escalator, which mainly comprises the following steps:
s1, installing a marking module at the designated position of the handrail belt to be detected, enabling the marking module to move along with the handrail belt and generate a mark at the designated step, thereby enabling the mark to generate corresponding deviation due to the synchronous deviation of the speeds of the handrail belt and the step;
s2, measuring the offset value generated by the mark in the set time period by using an offset measuring module;
s3, installing a step running distance measuring module at the horizontal step of the entrance or the exit of the escalator, and measuring the running distance of the horizontal step by the step running distance measuring module;
and S4, controlling the comprehensive display control module to obtain the deviation value and the horizontal stair running distance, and calculating the ratio of the deviation value and the horizontal stair running distance to obtain the synchronous speed deviation of the handrail belt to be detected and the stair running.
Specifically, in step S4, the ratio of the two is calculated, and the formula for obtaining the synchronous speed deviation between the handrail belt to be measured and the step is as follows: offset value/horizontal step travel distance.
The detection method is based on a detection device for synchronous deviation of the escalator handrail belt and the step speed, and the detection device is shown in figure 2 and comprises the following steps: the marking module 1 is arranged at a designated position of the hand strap and moves along with the hand strap and is used for generating a mark at a designated step, and the mark can generate corresponding offset due to the synchronous deviation of the speeds of the hand strap and the step; the offset measuring module 2 is used for measuring an offset value generated by a mark in a set time period; the step travel distance measuring module 3 is used for measuring the travel distance of the horizontal step in the set time period; and the comprehensive display control module 4 is used for acquiring data measured by the offset measuring module 2 and the step travel distance measuring module 3 and calculating the speed synchronous deviation of the hand strap and the step.
In specific implementation, the marking module 1 may implement marking in various forms, such as optical marking, physical marking, etc., where the optical marking is used; specifically, the marking module 1 comprises a laser emitter 11 and a light spot position marking module 1, the laser emitter 11 is respectively adhered to a left handrail belt and a right handrail belt by using double faced adhesive tapes so as to move along with the handrail belts, the laser emitter 11 is aligned to a step which is closest to the laser emitter to emit light beams, so that the light spots are formed on the step, and if the handrail belts and the step have speed synchronous deviation, the light spots on the step will generate corresponding deviation; the initial position and the final position of the light spot for the set time period are marked using the light spot position marking module 1. Because the light spot drift of a set time period needs to be measured, the positions before and after the light spot drift need to be marked, and the positions of the light spots need to be recorded in various ways, for example, due to the use of laser, an optical sensing plate can be laid on the step, so that the light speed leaves traces on the optical sensing plate; or firstly placing a graduated scale on the step, enabling a light spot formed by the laser beam to fall on the graduated scale, recording the current graduation, and recording the graduation where the current light spot is located again by the escalator after the light spot generates certain deviation; or various markers such as fluorescent powder, chalk, flags and the like are used for marking the positions of the light spots.
Here, the measurement drift may be measured manually using an original scale, or may be measured using an electronic instrument such as a distance meter, wherein if the deviation measurement module 2 measures the spot distance between the initial position and the final position of the spot using the scale, the integrated display and control module 4 receives the manually input spot distance. If the offset measurement module 2 adopts a distance meter to measure the distance between the light spots at the initial position and the final position, the comprehensive display and control module 4 is connected with the distance meter to automatically obtain the distance between the light spots measured by the distance meter; since the distance measuring instrument uses laser or radar, it is troublesome to reflect the distance measuring signal by a reflecting baffle plate, and the deviation measurement is performed by using a graduated scale.
For measuring the horizontal step travel distance, the step travel distance measuring module 3 is here fixed at the horizontal step of the escalator entrance or exit using a fixing bracket 5.
Specifically, the step travel distance measuring module 3 adopts a meter counter, the meter counter comprises a roller 31 and a rotary encoder 32, and the roller 31 is coaxially connected with the rotary encoder 32. The fixing bracket 5 comprises a supporting frame 51, one end of the supporting frame 51 is fixed on the rotary encoder 32 through an adjustable screw 52, the other end of the supporting frame 51 is fixed on the apron board at the horizontal step through a vacuum chuck 53, and the roller 31 is tightly attached to the horizontal step through the adjustable screw 52.
To calculate the speed synchronization deviation between the hand strap and the step, the light spot distance between the initial position and the final position before and after the light spot deviation and the running distance of the horizontal step need to be obtained, wherein the rotary encoder 32 is connected with the comprehensive display control module 4 to obtain the running distance of the horizontal step, and the light spot distance is obtained through manual input; the comprehensive display and control module 4 is also used for reading and displaying the running distance of the horizontal steps measured by the meter counter and the corresponding time-distance curve, and whether the steps move at a constant speed can be further seen through the time-distance curve.
When the escalator is measured, firstly, the escalator is stopped, the laser transmitters 11 are respectively adhered to the left handrail belt and the right handrail belt at the entrance of the escalator by using double faced adhesive tapes, so that light spots are formed on the steps by the light beams emitted by the laser transmitters, and initial positions of the light spots are marked at the positions of the light spots by using markers such as chalk, marking pens and the like, wherein the initial position of the light spot corresponding to the left handrail belt is marked as A, and the initial position of the light spot corresponding to the right handrail belt is marked as B as shown in FIG. 3; connecting a rotary encoder 32 of the meter counter to the comprehensive display and control module 4, fixing the meter counter to an apron board at the level of a horizontal step through a fixing support 5, and adjusting a screw 52 to ensure that an idler wheel 31 of the meter counter is tightly attached to the horizontal step and good contact is ensured; starting the escalator whenStopping the escalator again when the stair where the light spots are located reaches the horizontal stair of the escalator outlet and all marks appear in front of the comb plate, marking the final position of the light spots at the moment, and marking the final position of the light spots corresponding to the left hand strap as A and the final position of the light spots corresponding to the right hand strap as B as shown in FIG. 4; the control comprehensive display and control module 4 acquires the horizontal stair-level running distance measured by the meter counter and records the distance as S; using a graduated scale to measure the light spot spacing from A to A respectively and recording the light spot spacing as LAAnd the spot spacing from B to B is denoted as LBAnd manually input to the comprehensive display control module 4; and the control comprehensive display control module 4 respectively calculates the speed synchronous deviation of the left hand strap, the right hand strap and the step according to a built-in formula.
The measurement principle here is illustrated by the following formula:
the synchronous deviation of the left hand strap and the step speed is as follows:
the synchronous deviation of the left hand strap and the step speed is as follows:
wherein V is the step average velocity, VAIs the average speed, V, of the left hand strapBThe average speed of the right hand strap, T the running time of the escalator, S the running distance of the horizontal stair grade, and SAFor the running distance of the left hand strap, SBThe running distance of the right hand strap. Since the operating times of the handrail belt and the steps are the same and are T, the measuring speed is converted into the measuring distance through the formula; the invention can also be used for moving sidewalks, and when the moving sidewalk is measured, the specific detection process can be adaptively adjusted according to actual needs.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (9)
1. A method for detecting the synchronous deviation of the speed of a hand strap and a step of an escalator is characterized by comprising the following steps:
s1, installing a marking module at the designated position of the handrail belt to be detected, enabling the marking module to move along with the handrail belt and generate a mark at the designated step, thereby enabling the mark to generate corresponding deviation due to the synchronous deviation of the speeds of the handrail belt and the step;
s2, measuring the offset value generated by the mark in the set time period by using an offset measuring module;
s3, installing a step running distance measuring module at the horizontal step of the entrance or the exit of the escalator, and measuring the running distance of the horizontal step by the step running distance measuring module;
and S4, controlling the comprehensive display control module to obtain the deviation value and the horizontal stair running distance, and calculating the ratio of the deviation value and the horizontal stair running distance to obtain the synchronous speed deviation of the handrail belt to be detected and the stair running.
2. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 1, wherein the step S1 specifically comprises:
respectively fixing a laser emitter at the designated positions of the left hand strap and the right hand strap, so that light beams emitted by the laser emitters form light spots at any position of the designated steps, and the light spots can generate corresponding offset due to the synchronous deviation of the speeds of the hand straps and the steps;
the mark sets the initial position and the final position of the spot for a time period.
3. The method for detecting the synchronous deviation of the escalator handrail with the step speed as claimed in claim 2, wherein said step S2 comprises:
the spot separation is measured for the initial and final spot positions.
4. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 1, characterized in that: the offset measuring module in the step S2 adopts a scale or a distance meter.
5. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 1, characterized in that: the step S3 is to fix the step travel distance measuring module at a horizontal step of an entrance or an exit of the escalator, particularly using a fixing bracket.
6. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 5, characterized in that: the step travel distance measuring module in the step S3 adopts a meter counter, the meter counter comprises a roller and a rotary encoder, and the roller is coaxially connected with the rotary encoder.
7. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 6, characterized in that: the fixed support comprises a support frame, one end of the support frame is fixed on the rotary encoder through an adjustable screw, the other end of the support frame is fixed on the apron board at the level of the horizontal step through a vacuum chuck, and the idler wheel is tightly attached to the horizontal step.
8. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 3, characterized in that: and the control integrated display control module in the step S4 acquires the offset value, specifically, manually inputs the offset value or automatically acquires the light spot distance according to the offset measurement module.
9. The method for detecting the synchronous deviation of the escalator handrail and the step speed according to claim 1, characterized in that: the ratio of the two values is calculated in the step S4 to obtain the synchronous speed deviation between the handrail belt to be measured and the step, and the specific calculation formula is as follows: offset value/horizontal step travel distance.
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Cited By (2)
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| CN113233302A (en) * | 2021-04-25 | 2021-08-10 | 南京广厦软件有限公司 | Escalator safety control panel, escalator control method, escalator and medium |
| CN113753721A (en) * | 2021-08-02 | 2021-12-07 | 日立楼宇技术（广州）有限公司 | Escalator speed measurement system, method and device and storage medium |
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