CN106629367B - The system for detecting stepchain elongation - Google Patents
The system for detecting stepchain elongation Download PDFInfo
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- CN106629367B CN106629367B CN201611103782.7A CN201611103782A CN106629367B CN 106629367 B CN106629367 B CN 106629367B CN 201611103782 A CN201611103782 A CN 201611103782A CN 106629367 B CN106629367 B CN 106629367B
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- elongation
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- structural member
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
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- Escalators And Moving Walkways (AREA)
Abstract
The present invention relates to a kind of system of detection stepchain elongation, which includes：Signaling device is detected structural member and microcontroller, is provided with detection label on the detected structural member at equal intervals；The detected structural member is mounted on the joining beam to link with ladder sprocket wheel, and the detected structural member and ladder sprocket wheel generate identical displacement with the elongation of step chains；The position of the signaling device is constant with respect to staircase and girder, during staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the signaling device is moved to the center of next detection label in detected member, the microcontroller will obtain detection information, and according to the detection information obtained within staircase enabling time, the elongated distance of step chains can be calculated in real time.
Description
Technical field
The present invention relates to staircase component detection fields, more particularly to a kind of system of detection stepchain elongation.
Background technology
Escalator is the fixation power driven equipment for carrying in shuttling movement ladder road direction or tilting down conveying passenger.It
With continuous work, freight volume is big and the characteristics of influence by hoisting depth, be widely used in market, subway, station, airport,
The public places such as overline bridge.
The step chains of staircase are even broken as elongation can occur for abrasion in use.The main reason for elongation is chain section
The abrasion of axis pin and axle sleeve at point, away from increase, elongation may result in stepped system and generates abnormal vibration and make an uproar envoy mostly
Sound, and will appear the possibility being stuck when returning, when serious, or even it can cause danger.Therefore, it is necessary to in use
Stepchain elongation is detected.Traditional mode is to detect stepchain elongation using safety switch, but safety switch can only be sentenced
Break and the case where step chains have occurred and that failure, such as fracture or excessively elongation, it is thus impossible to prevent step chains failure in advance
Occur.
Invention content
Based on this, in order to detect the elongated distance of step chains in real time, a kind of system of detection stepchain elongation is provided.
A kind of system of detection stepchain elongation, including：Signaling device is detected structural member and microcontroller, institute
It states and is provided with detection label on detected structural member at equal intervals；The detected structural member is mounted on and links with ladder sprocket wheel
On joining beam, the detected structural member and ladder sprocket wheel generate identical displacement with the elongation of step chains；The signal sends out dress
The position set is constant with respect to staircase and girder, and the signal issuing side mouth face of the signaling device is detected the detection of structural member
Label, and the line of centres pair of label is detected in the center of the signal issuing side mouth of the signaling device and detected member
Together；During staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the signaling device
When being moved to the center of next detection label in detected member, the microcontroller will obtain detection information, and according to helping
The detection information obtained in terraced enabling time, obtains the elongated distance of step chains.
The advantageous effect of this programme：During staircase enables, the detected structural member occurs with the elongation of step chains
Displacement, when the signaling device is moved to the center of next detection label in detected member, the microcontroller obtains
Detection information, and according to the detection information obtained within staircase enabling time, can obtain in real time the elongations of step chains away from
From.
Description of the drawings
Fig. 1 is the schematic diagram of the escalator of an embodiment；
Fig. 2 is the schematic diagram of the step chains of an embodiment；
Fig. 3 is the schematic diagram of the system of the detection stepchain elongation of an embodiment；
Fig. 4 is the schematic flow chart of the system of the detection stepchain elongation of an embodiment.
Specific implementation mode
In order to further illustrate the effect of the technological means and acquirement of the invention taken, below in conjunction with the accompanying drawings and preferably
Embodiment carries out clear and complete description to technical scheme of the present invention.
Fig. 1 is the schematic diagram of the escalator of an embodiment.As shown in Figure 1, staircase is slowed down by truss 11, driving
Machine, driving device 12, tensioning apparatus 13, guide track system, step 14, step chains 15 or rack, guardrail handrail and various peaces
Full device is formed.Truss is the base frame of staircase, and all parts of staircase are assembled into the truss of this metal structure
In.Generally rectangular it is welded with angle steel, shaped steel or with rectangular tube etc..Tensioning apparatus is by terraced sprocket wheel item, axis, tensioning trolley and opens
The compositions such as the spring of tight step chains.Tensioning spring can make step chains be in good work when staircase is run by nut adjustment tension
Make state.When step chains are broken or are extended, the roller being tensioned on trolley is accurately oriented to generation displacement, makes its safety device (ladder
Grade chain fracture protecting device) it works, staircase stops running immediately.Fig. 2 is the schematic diagram of the step chains of an embodiment.
As shown in Fig. 2, step chains are with the support wheel that permanently lubricates by supporting, the step wheels in step chains can guide track system,
Even running on the sprocket wheel of driving device and tensioning apparatus；Also make power load distributing uniform, prevents the premature abrasion of guide track system, it is special
It is not that the stability of step chains overall operation ensure that by step axis connection in the step chains of zones of inversions two.The selection of step chains
It should be corresponding with staircase hoisting depth.The carrying pressure of chain pin is an important factor for step chains prolong the service life, it is necessary to rationally
Chain pin diameter is selected, just can guarantee staircase safe and reliable operation.Step moves horizontally at passenger entrance (facilitates passenger to step on
Ladder), ladder is gradually formed later；It fades away close to exit ladder, step moves horizontally once again.These movements are all
It is walked to realize along different step roller tracks respectively by step main wheel, jockey pulley.For the function most basic from its, escalator
It is exactly a conveyer belt Jing Guo simple refit.The chain ring of two rotations drags one group of step with the constant cycle, and to stablize speed
Degree carries many people and carries out short-distance movement.
The elongation of the step chains of escalator detection is explained in detail below.
Fig. 3 is the schematic diagram of the system of the detection stepchain elongation of an embodiment.As shown in figure 3, a kind of detection
The system of stepchain elongation, including：Signaling device 100 is detected structural member 110 and microcontroller 120, described to be detected
Detection label 111 is provided on structural member 110 at equal intervals；The detected structural member 110 is mounted on to link with ladder sprocket wheel
Joining beam on, the detected structural member 110 and ladder sprocket wheel generate identical displacement with the elongation of step chains；The signal hair
The position for going out device 100 is constant with respect to staircase and girder, and the signal issuing side mouth face of the signaling device 100 is detected knot
The detection label 111 of component 110, and examined in the center of the signal issuing side mouth of the signaling device 100 and detected member
The line of centres alignment of mark note 111；During staircase enables, the detected structural member 110 is sent out with the elongation of step chains
Raw displacement, it is described micro- when the signaling device 100 is moved to the center of next detection label 111 in detected member
Controller 120 will obtain a detection information, and according to the detection information obtained within staircase enabling time, obtain stretching for step chains
Over long distances.
As a preferred embodiment, the signaling device 100 is sensor, and the detection label 111 is aperture；
Staircase enable during, the detected structural member 110 is subjected to displacement with the elongation of step chains, when the sensor be moved to by
On detection piece when the center of next aperture, that is, aperture in the signal face detected member 100 that sends out of the sensor
Center, the signal obtain a pulse signal by the aperture, the microcontroller 120, and according in staircase enabling time
The pulse signal quantity of interior acquisition, calculates the elongated distance of step chains.Since aperture is that equidistant setting is being detected knot
On component, so what microcontroller 120 acquired is equally spaced pulse signal.The microcontroller 120 is opened according in staircase
With the pulse signal quantity obtained in the time, calculate the elongated distance of step chains, and according to the elongated distance calculate
To the extension speed of corresponding step chains.
As a preferred embodiment, the spacing for detecting label is d, and microcontroller records the startup time t of staircase1, hair
Time t when raw certain displacement2And t1And t2The number of pulses n obtained in period.Microcontroller calculates step according to the following formula
The elongated distance l of chain:
L=knd
Wherein, k is stepchain elongation rate computational constant.
Microcontroller calculates the extension speed u of step chains according to the following formula:
U=l ÷ (t1-t2)。
As a preferred embodiment, the signaling device 100 is camera, and the detection label 111 is a system
Row have length characteristic Quick Response Code；During staircase enables, when camera scanning to the two dimension on detected structural member
When code, and scanning information is sent to microcontroller, the microcontroller identifies Quick Response Code according to scanning information, and according to knowledge
The elongated distance for the step chains that other Quick Response Code is associated.For example, camera scanning is to the on detected structural member
Scanning information is sent to microcontroller by one Quick Response Code, and microcontroller identifies first Quick Response Code according to scanning information, and
The elongated distance 2cm for the step chains being associated.With the elongation of step chains, tested geodesic structure is subjected to displacement, at this point, taking the photograph
As head scanning is to second Quick Response Code on detected structural member, scanning information is sent to microcontroller, microcontroller according to
Scanning information identifies that second Quick Response Code, and the elongated distance 4cm for the step chains being associated, microcontroller will extend
Distance divided by staircase enabling time can obtain extension speed.
When escalator enables, the position of the signaling device 100 is constant with respect to staircase and girder, the signal hair
Go out device 100 to export on continuous signal to detected structural member 110, not have when the signal is output to detected structural member 110
When being arranged on the position of detection label 111, which is blocked by detected structural member 110, and microcontroller 120 there is no detection
Information；Since the detected structural member 110 and ladder sprocket wheel generate displacement with the movement of step chains, signaling device
When the signal of 100 outputs reaches the center of setting detection label 111 on detected structural member 110, the microcontroller 120
Corresponding detection information is obtained in some way, and according to the detection information obtained within staircase enabling time, obtains step
The elongated distance of chain.
As a preferred embodiment, the detection label 111 is arranged on the horizontal plane on the detected structural member.
During staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the signal is sent out
When going out device and being moved to the center of next detection label in detected member, the microcontroller obtains detection information, and according to
The detection information obtained within staircase enabling time can calculate the elongated distance of step chains in real time.
Fig. 4 is the schematic flow chart of the system of the detection stepchain elongation of an embodiment.As shown in figure 4, a kind of detection
The system of stepchain elongation, including：
S101：During staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the letter
When number issue device is moved to the center of next detection label in detected member, the microcontroller will obtain a detection letter
Breath, and according to the detection information obtained within staircase enabling time, obtain the elongated distance of step chains.
In this embodiment, the system of the detection stepchain elongation includes signaling device, is detected structural member and micro-
Controller is provided with detection label on the detected structural member at equal intervals；The detected structural member is mounted on and step
On the joining beam of sprocket wheel linkage, the detected structural member and ladder sprocket wheel generate identical displacement with the elongation of step chains；It is described
The position of signaling device is constant with respect to staircase and girder, and the signal issuing side mouth face of the signaling device is detected knot
The detection of component marks, and in the center of the signal issuing side mouth of the signaling device and detected member in detection label
Heart line is aligned.During staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the signal
When issue device is moved to the center of next detection label in detected member, the microcontroller will obtain a detection information,
And according to the detection information obtained within staircase enabling time, obtain the elongated distance of step chains.
As a preferred embodiment, the signaling device is sensor, and the detection label is aperture；It is opened in staircase
With in the process, the detected structural member is subjected to displacement with the elongation of step chains, when the sensor is moved in detected member
It is described when the center of next aperture, that is, in the signal face detected member that sends out of the sensor when center of aperture
Signal obtains a pulse signal by the aperture, the microcontroller, and according to the pulse obtained within staircase enabling time
The spacing and stepchain elongation rate constant of number of signals, detection label, calculate the elongated distance of step chains.
As a preferred embodiment, the signaling device is camera, and detection label is that a series of have
The Quick Response Code of length characteristic；During staircase enables, when camera scanning is to Quick Response Code on detected structural member,
And scanning information is sent to microcontroller, the microcontroller identifies Quick Response Code according to scanning information, and according to identification
The elongated distance for the step chains that Quick Response Code is associated.
When escalator enables, the position of the signaling device is constant with respect to staircase and girder, and the signal is sent out
Device exports on continuous signal to detected structural member, and detection label is not provided with when the signal is output to detected structural member
Position on when, which is blocked by detected structural member, and microcontroller cannot obtain detection information；Due to the detected knot
Component and ladder sprocket wheel generate displacement with the movement of step chains, and the signal of signaling device output, which reaches, is detected geodesic structure
On part when the center of setting detection label, the microcontroller obtains corresponding detection information, and root in some way
According to the detection information obtained within staircase enabling time, the elongated distance of step chains is obtained.
S102：The extension speed of step chains is calculated according to the elongated distance for the microcontroller.
As a preferred embodiment, microcontroller calculates the extension speed u of step chains according to the following formula:
U=l ÷ (t1-t2)；
Wherein, t1It is startup time, the t of staircase2It is time t when certain displacement occurs2, l is in t1To t2Time manhole ladder
The elongated distance of grade chain.
S103：The elongated distance of the step chains and preset elongated distance are compared by the microcontroller, work as institute
When stating elongated distance more than preset elongated distance, issue warning signal；
And/or the stepchain elongation rate and preset extension speed are compared by the microcontroller, when described
When extension speed is more than preset extension speed, issue warning signal.
As a preferred embodiment, when the elongated distance is more than preset elongated distance, and/or work as the elongation
When rate is more than preset extension speed, microcontroller issues warning signal, and illustrates that step chain away from becoming larger, causes step elongated
It fluffs, sprocket wheel can be moved to the direction after elongation under tension, tensed chain and generated displacement.At this point, work on the spot people
Member starts tensioning apparatus according to pre-warning signal, is adjusted in time, can carry out precautionary measures in advance, effectively avoid the hair of failure
It is raw.
During staircase enables, the detected structural member is subjected to displacement with the elongation of step chains, when the signal is sent out
When going out device and being moved to the center of next detection label in detected member, the microcontroller obtains detection information, and according to
The detection information obtained within staircase enabling time can calculate the elongated distance and extension speed of step chains in real time, and will
The elongated distance and/or extension speed of step chains are compared with corresponding preset value, if elongated distance and/or extension speed are super
Corresponding preset value is crossed, is issued warning signal, field personnel starts tensioning apparatus according to pre-warning signal, is adjusted in time
It is whole, precautionary measures can be carried out in advance, effectively avoid the generation of failure.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of system of detection stepchain elongation, which is characterized in that including：Signaling device is detected structural member and micro-
Controller is provided with detection label on the detected structural member at equal intervals；
The detected structural member is mounted on the joining beam to link with ladder sprocket wheel, the detected structural member and the step chains
Wheel generates identical displacement with the elongation of step chains；The position of the signaling device is constant with respect to staircase and girder, the letter
The detection label of structural member, and the signaling device are detected described in the signal issuing side mouth face of number issue device
The center of signal issuing side mouth be aligned with the line of centres for detecting label in detected member；
During staircase enables, the detected structural member is subjected to displacement with the elongation of the step chains, when the signal is sent out
Go out device be moved in the detected member it is next it is described detection label center when, the microcontroller will obtain one detection
Information, and according to the detection information obtained within staircase enabling time, obtain the elongated distance of step chains.
2. the system of detection stepchain elongation according to claim 1, which is characterized in that the signaling device is to pass
Sensor, the detection label is aperture；
During staircase enables, when the signal that the sensor is sent out is by aperture in detected member, the microcontroller
Device obtains a pulse signal, and according to the pulse signal quantity obtained within staircase enabling time, calculates the elongation of step chains
Distance.
3. the system of detection stepchain elongation according to claim 2, which is characterized in that according within staircase enabling time
The step of pulse signal quantity of acquisition, the elongated distance for calculating step chains includes：
The microcontroller is according to the pulse signal quantity obtained within staircase enabling time, the spacing and step of detection label
Chain lengthening rate constant calculations go out the elongated distance of step chains.
4. the system of detection stepchain elongation according to claim 1, which is characterized in that the signaling device is to take the photograph
As head, the detection label is a series of Quick Response Codes with length characteristic；
During staircase enables, when camera scanning is to Quick Response Code on detected structural member, and by scanning information
Be sent to microcontroller, the microcontroller identifies Quick Response Code according to scanning information, and according to the Quick Response Code of identification obtain with
Associated step chains elongated distance.
5. the system of detection stepchain elongation according to any one of claims 1 to 4, which is characterized in that further include：
The extension speed of step chains is calculated according to the elongated distance for the microcontroller.
6. the system of detection stepchain elongation according to claim 5, which is characterized in that further include：
The elongated distance of the step chains and preset elongated distance are compared by the microcontroller, when the elongated distance
When more than preset elongated distance, issue warning signal；
And/or the stepchain elongation rate and preset extension speed are compared by the microcontroller, when the elongation
When rate is more than preset extension speed, issue warning signal.
7. the system of detection stepchain elongation according to claim 1, which is characterized in that further include：
The detection label is arranged on the horizontal plane on the detected structural member.
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| CN201611103782.7A CN106629367B (en) | 2016-12-05 | 2016-12-05 | The system for detecting stepchain elongation |
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| CN201611103782.7A CN106629367B (en) | 2016-12-05 | 2016-12-05 | The system for detecting stepchain elongation |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6493626B1 (en) * | 2017-06-14 | 2019-04-03 | 三菱電機株式会社 | Passage chain monitoring system for passenger conveyors |
| CN117023331A (en) * | 2019-06-17 | 2023-11-10 | 三菱电机大楼技术服务株式会社 | Step chain elongation detection system of passenger conveyor |
| CN111071907A (en) * | 2019-12-12 | 2020-04-28 | 广东寰球智能科技有限公司 | Escalator main driving chain monitoring method and system based on light curtain sensor |
| CN113060626A (en) * | 2021-04-14 | 2021-07-02 | 江苏普瑞尔特控制工程有限公司 | Abnormal elongation sensor for step chain |
| JP7107409B1 (en) * | 2021-06-01 | 2022-07-27 | 三菱電機ビルソリューションズ株式会社 | Specific tool |
| CN114440812A (en) * | 2022-01-06 | 2022-05-06 | 日立电梯（广州）自动扶梯有限公司 | Chain elongation detection method and detection device |
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| CN201102854Y (en) * | 2007-10-26 | 2008-08-20 | 广州日立电梯有限公司 | Escalator chain testing apparatus |
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