CN214298844U - Automatic escalator - Google Patents
Automatic escalator Download PDFInfo
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- CN214298844U CN214298844U CN202022464125.3U CN202022464125U CN214298844U CN 214298844 U CN214298844 U CN 214298844U CN 202022464125 U CN202022464125 U CN 202022464125U CN 214298844 U CN214298844 U CN 214298844U
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Abstract
The utility model relates to an escalator, including a plurality of steps and be used for driving each step circulation moving two sets of driving chains, be provided with the chain wheel rail of the chain wheel walking of confession driving chain and supply the step on the apron board of every side from the driving wheel rail of driving wheel walking, set up respectively near two sets of driving chains and be used for detecting whether each chain wheel passes through the first detecting element of target detection position, first detecting element installs on from the driving wheel rail, and the target detection position of this first detecting element is located the route region that corresponds side driving chain and is in the air outside chain wheel rail. The utility model discloses a set up first detecting element and whether pass through the target detection position in order to detect each chain wheel, loop through the required time of this target detection position according to each chain wheel of driving chain and can learn the operating cycle of driving chain, can realize the monitoring to automatic escalator step clearance, improve the reliability and the security of automatic escalator operation.
Description
Technical Field
The utility model relates to an escalator.
Background
The escalator is widely applied to various places such as department stores, supermarkets, subways, airports, urban transportation hubs and the like, and has the characteristics of high conveying capacity, continuous operation and one-way operation. Along with the continuous increase of the passenger flow borne by the escalator, the escalator operates under the continuous and high-strength working condition for a long time, and the operation performance of the whole escalator and parts directly relates to the safety of passengers.
The escalator causes abrasion of all parts in the long-term operation process, so that the transverse clearance of the steps is increased, foreign matters or the hands and the toes of children are easily involved, and equipment damage or casualty accidents are caused. The skirt guard panel of the escalator is arranged on two sides of a step, a pedal or an adhesive tape according to the specification requirements, the transverse clearance between the step and the skirt guard panel on any side and the sum of the transverse clearances on the two sides are within a safety range, for example, the specification requirements that the transverse clearance on any side is not more than 4mm and the sum of the transverse clearances on the two sides is not more than 7 mm.
The main current inspection method for the transverse gap of the escalator step at present is as follows: the escalator stops running and adopts a feeler gauge or a straight steel ruler to manually measure related data, the detection method has the problems of low detection efficiency, large error, time and labor waste, the step gap in the running process cannot be monitored in real time, and accidents are likely to be caused by the increase of the step gap before regular maintenance and detection.
Therefore, monitoring and early warning of the gap of the escalator are of great significance for maintaining the safety and stability of the escalator, related researchers carry out research and design of some escalator gap measuring devices, for example, patent CN207407846U discloses an intelligent detector for the gap between an escalator skirt panel and a step, the long right-angle edge of a measuring scale on the detector is tightly attached to the skirt panel, meanwhile, the measuring scale is kept perpendicular to the skirt panel, the measuring scale is rotated and the rotating angle value of the measuring scale is measured, and the rotating angle value is converted to obtain the gap value between the skirt panel and the step; for another example, patent CN111238344A discloses a measuring instrument and method for measuring the gap between an escalator step and a skirt panel, wherein the measuring instrument is inserted into the gap between the step and the skirt panel, a signal processing device of the measuring instrument starts to collect and process signals of strain sensors on the step after a measuring button is clicked, and the gap measurement value is calculated from the strain values obtained by two strain sensors to complete the measurement of the gap between the escalator step. These measurement methods all need to carry out the shut down monitoring to automatic escalator, though the operation of instrument itself is simple relatively, and measurement accuracy improves greatly for traditional artifical clearance gauge measurement, still can not accomplish real-time supervision and early warning, just because the increase of step clearance causes the accident like this probably just before the regular maintenance monitoring of automatic escalator.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an escalator can solve prior art's partial defect at least.
The utility model relates to an escalator, including a plurality of steps and be used for driving each step circulation moving two sets of driving chain, the driving chain includes a plurality of chain wheels of connecting through the chain, and the both ends of every step are equipped with respectively from the driving wheel, are provided with the confession on the apron board of every side the chain wheel rail and the confession of chain wheel walking from the driving wheel rail of driving wheel walking, set up respectively near two sets of driving chains and be used for detecting whether each chain wheel passes through the first detecting element of target detection position, first detecting element install in from driving wheel rail to the target detection position of this first detecting element be located corresponding side driving chain the volley in on the route region outside the chain wheel rail.
In one embodiment, the first detection unit includes a photoelectric gate sensor, and a detection light path of the photoelectric gate sensor intersects with the corresponding side transmission chain and intersects with an area of the transmission chain, which is beyond the chain wheel track.
In one embodiment, each side of the escalator is provided with a second detection unit for detecting the gap between the step and the skirt board of the corresponding side wall, and the second detection unit is arranged on the skirt board between the driven wheel rail and the chain wheel rail of the corresponding side.
As an embodiment, the second detection unit includes a laser ranging sensor.
The utility model discloses following beneficial effect has at least:
the utility model provides an escalator through setting up first detecting element and whether passing through the target detection position in order to detect each chain wheel, loops through the required time of this target detection position according to each chain wheel of driving chain and can learn the operating cycle of driving chain to regard this as the monitoring means to both sides chain wheel and follow driving wheel wearing and tearing volume, can realize monitoring and the early warning to escalator step clearance, improve the reliability and the security of escalator operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a step according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a photoelectric door sensor and laser rangefinder sensor's mounting structure sketch map.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment of the present invention provides an escalator, including a plurality of steps 1 and two sets of transmission chains 2 for driving each step 1 to circulate, the transmission chains 2 include a plurality of chain wheels 21 connected by a chain, both ends of each step 1 are respectively provided with a driven wheel 11, a skirt panel on each side is provided with a supply for the chain wheel track 3 and the supply of the chain wheel 21 walking from the driven wheel track 4 of the driven wheel 11 walking, a first detection unit 5 for detecting whether each chain wheel 21 passes through a target detection position is arranged near two sets of transmission chains 2 respectively, the first detection unit 5 is installed on the driven wheel track 4, and the target detection position of the first detection unit 5 is located on a path region corresponding to the side transmission chain 2, which is higher than the path region outside the chain wheel track 3.
Each step 1 is connected with an upper transmission chain 2, and the step 1 is driven to move by the movement of the transmission chain 2. In the daily operation process of the escalator, because the loads on the left side and the right side of the escalator are in a variable state and the loads between different steps 1 are different, the abrasion between a chain wheel 21 and a chain wheel track 3 of a transmission chain 2 and the abrasion of a driven wheel 11 are often caused; given that the load on one side of the escalator is often greater than the other side, this causes the chain wheels 21 and driven wheels 11 on the side with the greater load to wear by a much greater amount than the chain wheels 21 and driven wheels 11 on the other side, which results in lateral displacement of the steps 1 and inclination with respect to the horizontal. Therefore, in the present embodiment, the wear amount of the chain wheels 21 on both sides is monitored and used as a warning means for the lateral displacement of the escalator step 1. Further, since the wear amounts of the chain wheels 21 and the driven wheels 11 on both sides of the escalator are not the same, the operating periods of the transmission chains 2 on both sides are not the same, and therefore, in this embodiment, the operating periods of the transmission chains 2 on both sides of the escalator are monitored as a means for monitoring the wear amounts of the chain wheels 21 and the driven wheels 11 on both sides.
Whether each chain wheel 21 of the transmission chain 2 passes through the target detection position can be detected by the first detection unit 5, and the time required for each chain wheel 21 of the transmission chain 2 to pass through the target detection position in sequence can be analyzed according to the time for each chain wheel 21 of the transmission chain 2 to pass through the target detection position, wherein the time is the operation period of the transmission chain 2. The analysis process can be manually carried out, and can also be automatically carried out through the escalator monitoring host. The feedback of the data detected by the first detecting unit 5 can be realized by data cable transmission, and can also be realized by a wireless signal transmission manner, which is a conventional technology and will not be described in detail herein. When the escalator is provided with the escalator monitoring host, the escalator monitoring host is used for acquiring detection data of the first detection unit 5, calculating an absolute value delta T of a running period difference value of the two groups of transmission chains 2, comparing the delta T with a prestored running period difference upper limit delta Tmax of the two groups of transmission chains 2 and outputting a first escalator step 1 gap early warning signal when the delta T is more than or equal to the delta Tmax; the processing process of the escalator monitoring host machine is a conventional simple calculation, comparison and signal output processing process, and additional programming is not needed.
The operation periods T1 and T2 of the two groups of transmission chains 2 of the escalator are detected in the above mode, and delta T is calculated as | T1-T2 |; judging whether the delta T is greater than delta Tmax, wherein the delta Tmax is the upper limit of the difference value of the operation periods of the two groups of transmission chains 2 obtained according to a wear test before the escalator leaves a factory; if the delta T is less than the delta Tmax, the gap of the step 1 of the escalator is represented to be within a safety range, if the delta T is more than or equal to the delta Tmax, the situation that the chain wheels 21 and the driven wheels 11 on the two sides of the escalator are possibly seriously abraded is shown, the gap of the step 1 of the escalator possibly exists, and managers can timely detect and maintain the gap value of the escalator.
Wherein, preferably, the first detecting unit 5 may adopt a photoelectric door sensor 5, and the photoelectric door sensor 5 may be installed at a portion where the chain wheel 21 is not in contact with the chain wheel track 3 to ensure the detection accuracy, in one embodiment, as shown in fig. 2, the photoelectric door sensor 5 is installed on the driven wheel track 4, and the detection light path of the photoelectric door sensor 5 intersects with the corresponding side transmission chain 2 and intersects with an area of the transmission chain 2 that is beyond the chain wheel track 3; the area is generally positioned below the cover plate of the escalator, so that the installation, the maintenance and other operations are convenient. Of course, other detection devices such as a photoelectric sensor and a proximity switch are also applicable to the present embodiment, and a detailed description thereof is omitted here.
According to the escalator provided by the embodiment, the first detection unit 5 is arranged to detect whether each chain wheel 21 passes through the target detection position, the running period of the transmission chain 2 can be known according to the time required by each chain wheel 21 of the transmission chain 2 to sequentially pass through the target detection position, and the running period is used as a monitoring means for the abrasion loss of the chain wheels 21 and the driven wheels 11 on two sides, so that the gap of the escalator step 1 can be monitored and early warned, and the running reliability and safety of the escalator are improved.
Further preferably, as shown in fig. 2, each side of the escalator is provided with a second detection unit 6 for detecting the gap between the step 1 and the skirt board of the corresponding side wall, and the second detection unit 6 is arranged on the skirt board between the driven wheel rail 4 and the chain wheel rail 3 of the corresponding side. Detecting the transverse clearance between the left end and the right end of each step 1 and the corresponding side apron plate through the second detection unit 6, calculating the sum D of the two transverse clearances, and judging whether the transverse clearance and the D are within a design safety range; the calculation and judgment process can be carried out manually or automatically through an escalator monitoring host; the feedback of the data detected by the second detecting unit 6 can be realized by data cable transmission, and can also be realized by a wireless signal transmission manner, which is a conventional technology and will not be described in detail herein. When the escalator is provided with the escalator monitoring host, the escalator monitoring host is also used for acquiring detection data of the second detection unit 6, calculating the sum D of the transverse gaps at the left side and the right side of each step 1, comparing the detected value and the D of the transverse gap at each side with a pre-stored design safety threshold value and outputting a gap early warning signal of the step 1 of the second escalator when any value of the detected value and the D of the transverse gap exceeds the corresponding design safety threshold value; likewise, the processing process of the escalator monitoring host machine is a conventional simple calculation, comparison and signal output processing process, and additional programming is not needed.
Since the step 1 is a movable part, a non-contact detection mode is preferably adopted to detect the transverse gap, so as to realize online detection; in one embodiment, the second detection unit 6 includes a laser ranging sensor 6, which can ensure the detection accuracy; in another embodiment, the paired laser distance measuring sensors 6 can be installed at the lower parts of the upper and lower comb plate covers of the escalator, so that the laser distance measuring sensors 6 can be conveniently installed additionally, and the step 1 with an overlarge gap can be conveniently dismounted and overhauled.
If any one of the transverse gap detection value and the D value exceeds the corresponding design safety range, the transverse gap of the step 1 is over large, and the intervention and the overhaul of maintenance managers are facilitated.
In the embodiment, the monitoring of the gap of the escalator step 1 can be completed by adopting a small amount of sensors, the installation is convenient, the structural change of the existing escalator is small, the escalator can be well adapted to the existing various escalator structures, and the required equipment cost, the engineering cost and the maintenance cost are low.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an escalator, includes a plurality of steps and is used for driving each step endless operation's two sets of driving chain, the driving chain includes a plurality of chain wheels of connecting through the chain, and the both ends of every step are equipped with respectively from the driving wheel, are provided with the confession on the apron board of every side the chain wheel rail of chain wheel walking and confession from the driving wheel rail of driving wheel walking, its characterized in that: and first detection units for detecting whether the chain wheels pass through target detection positions are respectively arranged near the two groups of transmission chains, the first detection units are arranged on the driven wheel track, and the target detection positions of the first detection units are positioned on a path area of the corresponding side transmission chain, which is higher than the outside of the chain wheel track.
2. The escalator of claim 1, wherein: the first detection unit comprises a photoelectric gate sensor, and a detection light path of the photoelectric gate sensor intersects with the corresponding side transmission chain and intersects with the area of the transmission chain, which is beyond the wheel rail of the chain wheel.
3. The escalator of claim 1, wherein: and each side of the escalator is provided with a second detection unit for detecting a gap between the step and the skirt board of the corresponding side wall, and the second detection unit is arranged on the skirt board between the driven wheel rail and the chain wheel rail of the corresponding side.
4. An escalator as claimed in claim 3, wherein: the second detection unit includes a laser ranging sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022464125.3U CN214298844U (en) | 2020-10-30 | 2020-10-30 | Automatic escalator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022464125.3U CN214298844U (en) | 2020-10-30 | 2020-10-30 | Automatic escalator |
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| CN214298844U true CN214298844U (en) | 2021-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551335A (en) * | 2020-10-30 | 2021-03-26 | 武汉铁四院工程咨询有限公司 | Escalator and step gap monitoring and early warning method thereof |
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- 2020-10-30 CN CN202022464125.3U patent/CN214298844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551335A (en) * | 2020-10-30 | 2021-03-26 | 武汉铁四院工程咨询有限公司 | Escalator and step gap monitoring and early warning method thereof |
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