CN220449490U - Speed monitoring device suitable for escalator and moving walk - Google Patents
Speed monitoring device suitable for escalator and moving walk Download PDFInfo
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- CN220449490U CN220449490U CN202321981117.3U CN202321981117U CN220449490U CN 220449490 U CN220449490 U CN 220449490U CN 202321981117 U CN202321981117 U CN 202321981117U CN 220449490 U CN220449490 U CN 220449490U
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- photoelectric switch
- handrail
- speed
- drive
- escalator
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000004891 communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 239000002390 adhesive tape Substances 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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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
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- Escalators And Moving Walkways (AREA)
Abstract
The application discloses speed monitoring device suitable for automatic escalator and moving walk, speed monitoring device include step speed detection photoelectric switch and handrail area speed detection photoelectric switch, step speed detection photoelectric switch sets up in step chain department, handrail area speed detection photoelectric switch sets up in handrail area pinch roller department, is equipped with a light trap on the handrail area pinch roller, step speed detection photoelectric switch and handrail area speed detection photoelectric switch's detected signal output to the switch board. The method has the advantages of detecting the running speed of the steps and the handrail in the escalator and the moving walk, thereby providing data support for judging whether the running speed of the escalator and the moving walk meets the specification.
Description
Technical Field
The application relates to the technical field of special equipment safety, in particular to a speed monitoring device suitable for an escalator and a moving walk.
Background
The escalator and the moving walk are used as electromechanical special equipment, are widely applied to personnel-intensive places such as shopping malls, subways, airports, comprehensive supermarkets and the like, provides great riding convenience for passengers and is an important travel tool. Compared with a vertical elevator, the escalator and the moving pavement have the characteristics of long starting and braking interval time, long running time, large traffic, maintenance and protection delay and the like, and the potential safety hazards of the escalator and the moving pavement are larger. In addition, from the aspect of the power transmission structure, the standing person bearing structures such as steps, pedals and the like are arranged at two sides of the transmission chain and the adhesive tape, and after the power is output from the driving motor, the transmission is carried out through the components such as a chain, an adhesive tape and the like, namely, the power is transmitted in a non-linear section, and the transmission synchronism is easy to be inconsistent. The speed of the engine output should be capable of ensuring the synchronization of all the components of the escalator and the moving pavement, and only if the speed synchronization is ensured, the safety monitoring can be performed.
The running speed requirements of the steps, steps or tapes of the escalator and the handrail are all specified according to 10.1 in TSG T7005-2012 (regulations for supervision and periodic inspection of elevators—escalator and travelator): at nominal frequency and nominal voltage, the maximum allowable deviation between the measured speed and nominal speed of the steps, pedals or tape when empty in the running direction is + -5%; 10.2 specifies: the allowable deviation of the running speed of the handrail belt relative to the actual speed of the steps, pedals or the adhesive tape is 0 to +2%; the other 6.9 requirements are: the handrail speed detection device should be arranged to stop the escalator or the travelator when the handrail speed deviates maximally more than 15% from the actual speed of the steps (pallets, adhesive tape) and the duration reaches 5-15 s.
At present, the domestic detection means for the running speed and the synchronization rate of the escalator steps, the speed and the synchronization rate of the handrail belt and the braking distance of the steps/pedals often adopt a handheld tachometer, an artificial marking method and measuring instruments with low operability and precision, and the instruments and equipment in the aspects of the design of detection devices for detecting the speed of the handrail belt and the speed deviation between the speed of the handrail belt and the steps, pedals and adhesive tapes are fewer, so that the situation of difficult detection of the parameters is caused.
Disclosure of Invention
The speed monitoring device has the advantages that the running speeds of the steps and the handrail in the escalator and the moving pavement can be detected, and accordingly data support is provided for judging whether the running speeds of the escalator and the moving pavement accord with specifications.
The utility model provides a above-mentioned purpose is realized through following technical scheme, an escalator and moving walk's speed monitoring device, an escalator and moving walk include the step, the handrail area, drive unit, main drive sprocket, drive chain, follow drive sprocket, big band pulley, little band pulley, the drive belt, the handrail area drive wheel, handrail area pinch roller and switch board, the switch board is controlled drive unit, drive unit passes through main drive sprocket and drive chain drive and follows drive sprocket rotation, follow drive sprocket passes through big band pulley, drive belt and little band pulley drive handrail area drive wheel rotation, follow drive sprocket passes through step sprocket and step chain drive step and moves, handrail area drive wheel drive handrail area rotates, a serial communication port, speed monitoring device include step speed detection photoelectric switch and handrail area speed detection photoelectric switch, step speed detection photoelectric switch sets up in chain department, handrail area speed detection photoelectric switch sets up in handrail area pinch roller department, be equipped with a light trap on the handrail area pinch roller, speed detection photoelectric switch and handrail area speed detection signal output to the switch board.
The application further sets up to, step speed detects photoelectric switch and handrail area speed and detects photoelectric switch and be correlation formula photoelectric switch, wherein, step speed detects photoelectric switch and passes through step chain internode space printing opacity, handrail area speed detects photoelectric switch and passes through the light trap printing opacity on the handrail area pinch roller.
The application is further set up as, step speed detects photoelectric switch and handrail area speed detects photoelectric switch and is equipped with at least one respectively in the elevator both sides.
The application is further set up as, speed monitoring device still includes alarm module, alarm module is controlled by the switch board, and the switch board passes through step speed detects photoelectric switch and handrail area speed detects photoelectric switch's output signal control alarm module reports to the police.
The application further sets up to, speed monitoring device still includes the display layer, the display layer is connected with the switch board, and the switch board passes through step speed detects photoelectric switch and handrail area speed detects photoelectric switch's output signal control display layer's display content.
The application is further set up as, the switch board passes through step speed detects photoelectric switch and handrail area speed detects photoelectric switch's output signal control escalator or moving walk stop.
In summary, the beneficial effects of the present application are:
1. according to the escalator, the step speed and the handrail speed of the escalator and the moving sidewalk are detected through the step speed detection photoelectric switch and the handrail speed detection photoelectric switch respectively, the number of sensors is small, the installation is convenient, wall nails are not needed, the wall of the escalator is not damaged, the attractiveness is ensured, and the normal operation of a commercial building is not influenced;
2. a group of step speed detection photoelectric switches and handrail speed detection photoelectric switches are respectively arranged on two sides of the escalator and the moving sidewalk, and the running synchronization rate of the handrail at two sides can be detected through the data of two groups of sensors; if the speeds of the left side and the right side of the escalator and the moving sidewalk device are not synchronous, certain flexibility can be generated, equipment is accelerated to wear due to long-term running, and the service life is shortened;
3. the speeds of the escalator and the moving pavement are respectively detected, so that the difference between the speeds is beneficial to judging, and if the abnormal speed occurs, the alarm unit alarms and controls the escalator and the moving pavement to stop.
Drawings
Fig. 1 is a schematic view of the structure of an escalator;
fig. 2 is a schematic structural view of the present embodiment;
fig. 3 is a schematic diagram of installation positions of a step speed detecting photoelectric switch and a handrail speed detecting photoelectric switch in the present embodiment;
fig. 4 is an enlarged view at a in fig. 3;
fig. 5 is a schematic diagram of the detection principle of the step speed detection photoelectric switch in the present embodiment;
FIG. 6 is a system block diagram of the present embodiment;
fig. 7 is a speed monitoring judgment flow chart of the present embodiment.
In the figure, 01, the handrail belt drives a main shaft; 02. a step driving spindle; 03. a handrail belt; 04. a control cabinet; 05. driving a unit; 06. a main drive sprocket; 07. a drive chain; 08. a driven drive sprocket; 09. a large belt wheel; 10. a transmission belt; 11. a step sprocket; 12. a step speed detecting photoelectric switch; 13. a step chain; 14. a handrail belt speed detection photoelectric switch; 15. a handrail belt pinch roller; 16. a handrail belt drive wheel; 17. a small belt wheel; 18. a step; 1501. light holes.
Detailed Description
The following detailed description of specific embodiments of the present application refers to the accompanying drawings.
Examples: referring to fig. 1-5, a speed monitoring device for an escalator and a moving walk, the escalator and the moving walk comprising steps, a handrail belt, a drive unit, a main drive sprocket, a drive chain, a secondary drive sprocket, a large pulley, a small pulley, a transmission belt, a handrail belt drive wheel, a handrail belt pinch wheel and a control cabinet. The control cabinet controls the driving unit, the driving unit drives the driven sprocket to rotate through the main driving sprocket and the driving chain, the driven sprocket drives the handrail belt driving wheel to rotate through the large belt pulley, the transmission belt and the small belt pulley, the driven sprocket drives the step to move through the step sprocket and the step chain, and the handrail belt driving wheel drives the handrail belt to rotate.
The escalator and the moving pavement are provided with a group of step chain wheels and step chains on two sides, and the step chain wheels on two sides are connected through a step driving spindle. The driving wheels of the hand strap at the two sides are connected through the driving main shaft of the hand strap.
The speed monitoring device of this embodiment includes step speed detection photoelectric switch and handrail area speed detection photoelectric switch, step speed detection photoelectric switch sets up in step chain department, handrail area speed detection photoelectric switch sets up in handrail area pinch roller department, is equipped with a light trap on the handrail area pinch roller, and step speed detection photoelectric switch and handrail area speed detection photoelectric switch's detection signal output to the switch board.
The step speed detection photoelectric switch and the handrail belt speed detection photoelectric switch are correlation type photoelectric switches, wherein the step speed detection photoelectric switch transmits light through gaps among step chains, and the handrail belt speed detection photoelectric switch transmits light through light holes on the handrail belt pressing wheel. Therefore, each time the step chain runs one section, the step speed detection photoelectric switch outputs an induction signal, and the step running speed can be obtained through the length L between each section of the step chain. After the handrail belt is pressed and rotated for one circle, the handrail belt speed detection photoelectric switch outputs an induction signal, and the running speed of the handrail belt can be obtained through the diameter of the handrail belt pressing wheel. The calculation process is carried out by a controller built in a control cabinet.
The step speed detection photoelectric switch and the handrail speed detection photoelectric switch are respectively arranged on two sides of the elevator.
Referring to fig. 6-7, in fig. 6 and 7, the sensors 1-2 are two handrail speed detecting photoelectric switches, respectively, and the sensors 3-4 are two step speed detecting photoelectric switches, respectively. The speed monitoring device further comprises an alarm module, wherein the alarm module is controlled by a control cabinet, and the control cabinet controls the alarm module to alarm through output signals of the step speed detection photoelectric switch and the handrail speed detection photoelectric switch.
Assuming that the speeds of the left and right handrail belts obtained by the handrail belt speed detection photoelectric switch are V1, V2, the speeds of the left and right steps obtained by the step speed detection photoelectric switch are V3, V4.
Judging the synchronization rate:
wherein V is min1 Is V (V) 1 、V 2 Minimum value of V min2 Is V (V) 3 、V 4 Is the minimum value of (a). And alpha and beta are respectively the running synchronous rate of the handrail belts at two sides and the running synchronous rate of the steps at two sides.
Regarding the requirements of the synchronous rate of the speeds of the two sides of the handrail belt and the steps, the requirements of the inspection gauge and the national standard are not clear, but once the speeds of the two sides are deviated and asynchronous, the rail gnawing phenomenon is easy to cause, the equipment is damaged, and the synchronous rate of the handrail belt is the highest value alpha in the embodiment 0 Highest value beta of step synchronization rate 0 Let 1%.
Therefore, it can be seen that the speed synchronization rate at both sides of the handrail and the steps is compounded with the judgment standard in the embodiment when α and β are less than or equal to 1%. And when alpha or beta exceeds 1%, the alarm module alarms.
Deviation judgment: set V i Is the maximum value in the speed of the handrail belt, V j Is the minimum of the step speeds.
According to the specification V i And V j When the deviation between the two is 15% and the duration time is 5s, the alarm module alarms.
The speed monitoring device further comprises a display layer, the display layer is a display screen or an LED display array, the display layer is connected with a control cabinet, and the control cabinet controls the display content of the display layer through output signals of the step speed detection photoelectric switch and the handrail speed detection photoelectric switch. In this embodiment, the volume speed and the handrail speed are obtained in real time by displaying on the display layer, and the alpha, beta values and V are displayed at the same time i And V j A deviation value between them.
The control cabinet controls the escalator or the moving pavement to stop through the output signals of the step speed detection photoelectric switch and the handrail belt speed detection photoelectric switch. Specifically, the control cabinet controls the escalator or moving walkway brake and the additional brake (if any).
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept of the present application, which fall within the protection scope of the present application.
Claims (6)
1. The utility model provides a speed monitoring device suitable for escalator and moving walk, escalator and moving walk includes the step, the handrail area, drive unit, main drive sprocket, drive chain, follow drive sprocket, big band pulley, little band pulley, the drive belt, handrail area drive wheel, handrail area pinch roller and switch board, the switch board is controlled drive unit, drive unit passes through main drive sprocket and drive chain drive and follows drive sprocket rotation, follow drive sprocket passes through big band pulley, drive belt and little band pulley drive handrail area drive wheel rotation, follow drive sprocket and pass through step sprocket and step chain drive step and move, handrail area drive wheel drive handrail area rotates, a serial communication port, speed monitoring device include step speed detection photoelectric switch and handrail area speed detection photoelectric switch, step speed detection photoelectric switch sets up in step chain department, handrail area speed detection photoelectric switch sets up in handrail area pinch roller department, be equipped with a light trap on the handrail area pinch roller, step speed detection photoelectric switch and handrail area speed detection photoelectric switch's detection signal output to the switch board.
2. The speed monitoring device for escalators and moving walkways according to claim 1, wherein the step speed detecting photoelectric switch and the handrail speed detecting photoelectric switch are opposite-type photoelectric switches, wherein the step speed detecting photoelectric switch transmits light through gaps between step chain links, and the handrail speed detecting photoelectric switch transmits light through light holes on a handrail pinch roller.
3. The speed monitoring device for escalators and moving walkways according to claim 2, wherein the step speed detecting photoelectric switch and handrail speed detecting photoelectric switch are provided with at least one on both sides of the escalator, respectively.
4. The speed monitoring device for escalators and moving walkways according to claim 3, further comprising an alarm module controlled by a control cabinet, the control cabinet controlling the alarm module to alarm via output signals of the step speed detecting photoelectric switch and the handrail speed detecting photoelectric switch.
5. The speed monitoring device for escalators and moving walkways according to claim 3, further comprising a display layer connected to a control cabinet, wherein the control cabinet controls the display content of the display layer by the output signals of the step speed detecting photoelectric switch and the handrail speed detecting photoelectric switch.
6. A speed monitoring device for escalators and moving walkways according to claim 3, characterized in that the control cabinet controls the stopping of the escalator or moving walkway by means of the output signals of the step speed detecting photoelectric switch and handrail speed detecting photoelectric switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321981117.3U CN220449490U (en) | 2023-07-26 | 2023-07-26 | Speed monitoring device suitable for escalator and moving walk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321981117.3U CN220449490U (en) | 2023-07-26 | 2023-07-26 | Speed monitoring device suitable for escalator and moving walk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220449490U true CN220449490U (en) | 2024-02-06 |
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ID=89732025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321981117.3U Active CN220449490U (en) | 2023-07-26 | 2023-07-26 | Speed monitoring device suitable for escalator and moving walk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220449490U (en) |
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2023
- 2023-07-26 CN CN202321981117.3U patent/CN220449490U/en active Active
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