CN107021412A - Chain loading device and passenger conveyors and chain elongation detection method - Google Patents
Chain loading device and passenger conveyors and chain elongation detection method Download PDFInfo
- Publication number
- CN107021412A CN107021412A CN201610415904.XA CN201610415904A CN107021412A CN 107021412 A CN107021412 A CN 107021412A CN 201610415904 A CN201610415904 A CN 201610415904A CN 107021412 A CN107021412 A CN 107021412A
- Authority
- CN
- China
- Prior art keywords
- chain
- sprocket
- electric current
- angular speed
- ripple amplitude
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/02—Driving gear
- B66B23/024—Chains therefor
Landscapes
- Escalators And Moving Walkways (AREA)
Abstract
The present invention relates to chain loading device and passenger conveyors and chain elongation detection method, there is provided a kind of chain loading device of elongation that chain can be just detected without using special utensil and passenger conveyors and chain elongation detection method.The chain loading device of embodiment possesses motor, the 1st sprocket wheel, chain, the 2nd sprocket wheel, inverter and controller.The controller carries out vector controlled to the motor and the inverter, and the elongation of the chain is calculated according to the torque component electric current of the key element as the vector controlled.
Description
The application is with the Japanese patent application 2016-018142 (applyings date：02/02/2016) based on, enjoyed based on this application
By priority.The application is by referring to this application, including the entire disclosure of which.
Technical field
Embodiments of the present invention are related to the chain loading device and passenger conveyors for being equipped with the chain being driven by a motor
And chain elongation detection method.
Background technology
The chain loading device for the chain being driven by a motor as being equipped with, the passenger conveyors such as having escalator.
The rotation of motor is delivered to drive sprocket by escalator, is transmitted the rotation of the drive sprocket by drive chain
To driven sprocket (also referred to as relaying sprocket wheel).Step drive sprocket and handrail drive sprocket are fixed to the rotation of driven sprocket
Axle.Also, step drive chain is set up between step drive sprocket and step driven sprocket, in handrail drive sprocket with helping
Handrail drive chain is set up between hand strap driven sprocket.
Drive chain include substantial amounts of chain link, the sleeve for the tubular being respectively configured on the inside of the both ends of these chain links,
The chain roller that is respectively configured on the outside of these sleeves and it is respectively interposed each sleeve through the both ends of each chain link
Bearing pin, by these bearing pins, links each chain link to state annular in shape.
In addition, drive chain in the state of persistently by tension force while be engaged to the tooth of drive sprocket and driven sprocket,
While bending elongation is repeated, the circular flow between drive sprocket and driven sprocket.Followed if be repeated along with this
The bending elongation of inscription of loop, then can produce the gap caused by abrasion in the contact portion of bearing pin 25 and sleeve 23 soon.If
Gap is produced, then becomes the state that drive chain has extended in appearance.
If the length of drive chain exceedes the 1.0~1.5% of initial length, drive chain engages generation with sprocket wheel
It is abnormal.For example, producing the so-called climbing tooth phenomenon that drive chain is no longer engaged to the tooth of sprocket wheel.Sometimes sprocket wear is also resulted in.
Therefore, in escalator when inspecting periodically etc., it is necessary to make the operation of escalator stop temporarily, repaired
Personnel confirm the operation of the elongation of drive chain.But, in the operation, it is necessary to dismantle the framework lid of escalator, so consumption
It is labor intensive but also expend the time.This is big burden for maintenance personal, also can be in a long time to escalator
User forces inconvenience.
The content of the invention
It is an object of the present invention to provide a kind of chain for the elongation that chain can be just detected without using special utensil
Loading device and passenger conveyors and chain elongation detection method.
The rotation of motor is delivered to the 1st sprocket wheel by the chain loading device of embodiment, by chain by the 1st sprocket wheel
Rotation is delivered to the 2nd sprocket wheel, and possesses inverter of the output to the driving electric power of the motor, and the chain carries dress
Put and possess controller.Detected in the electric current that the controller flows through from the motor torque component electric current in the motor and
Excitation component electric current, the speed of the motor, control are speculated according to detected torque component electric current and excitation component electric current
The inverter is so that the supposition speed turns into target velocity.The controller calculates described according to the torque component electric current
The ripple amplitude of " angular speed " or " angular acceleration " of the 2nd sprocket wheel.Further, the controller and the chain are engaged to
Predetermined multiple " offsets " on the opportunity that the opportunity of the 1st sprocket wheel is engaged to the 2nd sprocket wheel with the chain are right
Ground is answered to calculate or keep the ripple amplitude of " the theoretical angular speed " or " theoretical angular acceleration " of the 2nd sprocket wheel.Moreover, institute
State it is in controller ripple amplitude of " theoretical angular speed " or " theoretical angular acceleration " according to calculating or keep,
" offset " described in calculating corresponding to the ripple amplitude identical ripple amplitude of " angular speed " or " angular acceleration ",
Calculate the elongation of the chain.
According to the chain loading device of said structure, the elongation of chain can be just detected without using special utensil.
Brief description of the drawings
Fig. 1 is the profile of the structure for the elevator for roughly showing each embodiment.
Fig. 2 is enlargedly to show drive sprocket, driven sprocket, the figure of drive chain in Fig. 1.
Fig. 3 is the figure of the part from the drive chain in Fig. 1 in terms of side.
Fig. 4 is the figure of Fig. 3 drive chain and one part section seen from above.
Fig. 5 is the block diagram of the major part for the control circuit for showing the 1st embodiment.
Fig. 6 is the figure of the relation of the operation for the rotation and drive chain for showing the drive sprocket in each embodiment.
Fig. 7 is the figure for the speed for showing the drive chain in each embodiment.
Fig. 8 is the figure for the acceleration for showing the drive chain in each embodiment.
Fig. 9 is the chain roller on the drive sprocket in the case that the drive chain for showing in each embodiment does not extend
The figure of the anglec of rotation and the relation of the anglec of rotation of the chain roller on driven sprocket.
Figure 10 is the chain roller on the drive sprocket in the case that the drive chain for showing in each embodiment has elongation
The anglec of rotation and driven sprocket on chain roller the anglec of rotation relation figure.
Figure 11 is the figure for the angular speed that phase offset angle α is shown to the driven sprocket in each embodiment as parameter.
Figure 12 is pass of the ripple amplitude with phase offset angle α for the angular speed for showing the driven sprocket in the 1st embodiment
The figure of system.
Figure 13 is the block diagram of the major part for the control circuit for showing the 2nd embodiment.
Figure 14 is the figure for the structure for showing the handrail driven sprocket in the 2nd embodiment.
Figure 15 is the block diagram of the major part for the control circuit for showing the 3rd embodiment.
Figure 16 is relation of the amplitude amplitude with phase offset angle α for showing the theoretical angular acceleration in the 4th embodiment
Figure.
Figure 17 is the block diagram of the major part for the control circuit for showing the 5th embodiment.
Figure 18 is relation of the amplitude amplitude with phase offset angle α for showing the theoretical angular acceleration in the 5th embodiment
Figure.
Embodiment
[1] the 1st embodiment
Referring to the drawings, the 1st embodiment is illustrated.
In Fig. 1, the chain loading device for the chain being driven by a motor as being equipped with, is disclosed as passenger conveyors
Such as escalator 1.Escalator 1 possesses truss 2.Truss 2 possesses the lower layer side horizontal part for the floor 1F for being placed in lower floor
2a, it is placed in the floor 2F on upper strata upper layer side horizontal part 2b and by between lower layer side horizontal part 2a and upper layer side horizontal part 2b
The rake 2c of connection.
Machine Room 3 is configured with the upper layer side horizontal part 2b of truss 2.In Machine Room 3, horse is contained as power source
Up to 4, and contain the reductor 5 for the rotational deceleration for making the motor 4, be fixed on the reductor 5 output shaft drive sprocket
(the 1st sprocket wheel；Main drive sprocket) 6 etc..Drive shaft 7 is rotatably configured with the vicinity of drive sprocket 6, by driven sprocket
(the 2nd sprocket wheel；Principal and subordinate's movable sprocket) 8 and step drive sprocket 9 be coaxially fixed to the drive shaft 7 respectively.Also, in drive sprocket
Drive chain (main drive chain bar) 10 is set up between 6 and driven sprocket 8.Driven sprocket 8 also referred to as relays sprocket wheel.
When motor 4 is acted, the rotation of motor 4 is delivered to drive sprocket 6 via reductor 5, and drive sprocket 6 is carried out
Rotation.When drive sprocket 6 is rotated, its rotation is delivered to driven sprocket 8 via drive chain 10, and driven sprocket 8 is carried out
Rotation.When driven sprocket 8 is rotated, the step drive sprocket 9 for being fixed on same drive shaft 7 is also rotated.
Driven shaft 11 is rotatably configured with the lower layer side horizontal part 2a of truss 2, step driven sprocket 12 is same
It is fixed to the driven shaft 11 axle.Between the step driven sprocket 12 and step drive sprocket 9, step drive chain is set up
13.Along with the rotation of step drive sprocket 9, step drive chain 13 step drive sprocket 9 and step driven sprocket 12 it
Between annularly circular flow.
Step drive chain 13 includes the outlet 13a of the carrying for passenger and the return road positioned at outlet 11a lower section
13b.Substantial amounts of step 14 is linked with the step drive chain 13.Step 14 is to utilize wanting that the passenger of escalator 1 is multiplied by
Element, respectively with front-wheel 14a and trailing wheel 14b.Front-wheel 14a and trailing wheel 14b rotatably with the truss 2 configuration it is not shown
Guide rail connect.Thus, when step drive chain 13 is run, in the outlet 13a of step drive chain 13, multiple steps 14
Moved along the rake 2c of truss 2 with the state arranged stepwise.From the floor 1F of lower floor to the floor 2F on upper strata
Or the passenger for being multiplied by each step 14 is transported from the floor 2F on upper strata to the floor 1F of lower floor.
Handrail drive sprocket 15 is coaxially fixed to be fixed with to the drive shaft of driven sprocket 8 and step drive sprocket 9
7.In the position separated with the handrail drive sprocket 15, handrail driven sprocket 16 is rotatably configured, in the handrail
Handrail drive chain 17 is set up between driven sprocket 16 and handrail drive sprocket 15.Handrail drive chain 17 receives handrail
Rotation with drive sprocket 15, the circular flow between the handrail drive sprocket 15 and handrail driven sprocket 16.
Handrail driven roller 18 is coaxially fixed to the rotary shaft of handrail driven sprocket 16.What is erected from truss 2
The peripheral part of bannister 19, is movably equipped with handrail 20, and a part for the handrail 20 is engaged to handrail driven roller
18.Rotated by handrail driven roller 18, handrail 20 carries out circular flow along bannister 19.It is multiplied by multiplying for each step 14
Visitor can hold the handrail 20.
Drive sprocket 6, driven sprocket 8, drive chain 10 are enlargedly shown in fig. 2.In addition, figure 3 illustrates from side
While seeing the state of a part for drive chain 10, figure 4 illustrates the shape of drive chain 10 and one part section seen from above
State.Drive chain 10 is alternately and so that annularity links and obtains by substantial amounts of outer link 21 with substantial amounts of inner link 22
, so along with the rotation of drive sprocket 6, while bending elongation is repeated in the state of persistently by tension force, on one side
The circular flow between drive sprocket 6 and driven sprocket 8.Outer link 21 by the carrier bar 21a of a pair of opposite rigid bodies,
21b and constitute.Inner link 22 is made up of carrier bar 22a, 22b of a pair of opposite rigid bodies.
The linking portion of outer link 21 and inner link 22 is that carrier bar 22a, 22b both ends enter carrier bar by given size
The inner side at 21a, 21b both ends and overlapped state.Rotated freely respectively in the inner side at carrier bar 22a, 22b both ends
Ground configures the sleeve 23 of tubular, and chain roller 24 is rotatably assembled respectively in the outer peripheral face of these sleeves 23.Then, from
In the state of carrier bar 21a, 21b both ends are by carrier bar 22a, 22b both ends and the inner side of each sleeve 23, by link
Bearing pin 25 is respectively interposed.Each bearing pin 25 sliding freely connects with carrier bar 22a, 22b both ends and the inner peripheral surface of each sleeve 23.
The mutual length (pin axle base) of each bearing pin 25 is referred to as chain pitch P.
The outer peripheral face of bearing pin 25 is tightly connected with the inner peripheral surface of sleeve 23 by the tension force that drive chain 10 applies.
But, if repeated by flexural deformation when drive sprocket 6 and driven sprocket 8, soon in bearing pin 25 and sleeve 23
Contact portion can produce by abrasion caused by gap.The length of outer link 21 and inner link 22 does not change in a long time, but
Gap between bearing pin 25 and sleeve 23 slowly increases due to abrasion.Therefore, drive chain 10 becomes to be equal in appearance
The state that outer link 21 and inner link 22 have extended.If the elongation can be determined, drive chain 10 can be probably held
Deterioration state.
Figure 5 illustrates the major part for the control circuit for being equipped on escalator 1.
Inverter 31 is connected in commercial ac power source 30, said motor 4 is connected in the output end of the inverter 31.Inverter
The alternating voltage of commercial ac power source 30 is transformed into direct current by 31, by switch motion will convert obtained DC voltage conversion into
The alternating voltage of assigned frequency and level and output.By the output, motor 4 is acted.Inverter 31 output end with
Current sensor 32 is installed in the electrical path between motor 4, the result of detection of the current sensor 32 is supplied to controller
40.Current sensor 32 detects the electric current (being referred to as motor current) flowed through in motor 4.
Controller 40 is made up of microcomputer and its peripheral circuit, including motor control part 41, angular speed calculating part 42,
Theoretical value calculating part 43, lengthening variable portion 44, notification unit 45.Display and the operation of escalator 1 are connected to the controller 40
The display part 50 of related various information.
Motor control part 41 carries out known ensorless control.That is, from the motor detected by current sensor 32
In electric current, torque component electric current Iq and excitation component electric current Id in detection motor 4, according to the torque component electric current Iq detected
The speed (spinner velocity) of motor 4 is speculated with excitation component electric current Id, by PI control obtain and the supposition speed with advance
The corresponding target torque current weight Iqref of difference and target excitation component electric current Idref of the target velocity of determination, to inversion
The switch motion of device 31 carries out pulse width modulation (PWM) control, to cause above-mentioned torque component electric current Iq and above-mentioned excitation point
Measuring electric current Id turns into target torque current weight Iqref and target excitation component electric current Idref.
Angular speed calculating part 42 catches the torque of motor 4 from the torque component electric current Iq detected by motor control part 41
Pulsation, by carrying out the computing of formula (12) described later based on the pulsation captured, calculates the angular speed v2 of driven sprocket 8 successively
(=v2real) and the angular speed v2 ripple amplitude (also referred to as pulse amplitude).
Theoretical value calculating part 43 by the chain pitch P based on drive chain 10, the reference radius R of drive sprocket 6, from
The various elements such as the reference radius R2 of movable sprocket 8 carry out the computing of formula (8) described later, and drive chain 10 the defined 1st
Chain roller 24 is engaged to the opportunity of drive sprocket 6 and defined 2nd chain roller 24 of drive chain 10 is engaged to driven chain
Predetermined multiple " offsets " on the opportunity of wheel 8 calculate the theoretical angular speed v2theory of driven sprocket 8 with being mapped
With the ripple amplitude of the theoretical angular speed v2theory." offset " is referred to as phase offset angle α.Theoretical angular speed v2theory
It is different according to phase offset angle α.Then, theoretical value calculating part 43 is kept in the form of being mapped with each phase offset angle α
The theoretical angular speed v2theory and its ripple amplitude calculated.
Lengthening variable portion 44 is being calculated multiple theoretical angular speed v2theory's of (holding) by theoretical value calculating part 43
In ripple amplitude, " angular speed v2 ripple amplitude " identical " theoretical angle speed with being calculated by angular speed calculating part 42 is selected
Spend v2theory ripple amplitude ", obtained and selected " theoretical angular speed v2theory pulsation from theoretical value calculating part 43
The phase offset angle α that amplitude " is mapped, the elongation of drive chain 10 is calculated according to accessed phase offset angle α
dL。
Notification unit 45 notifies the elongation dL calculated by lengthening variable portion 44 by the text importing of display part 50,
And the elongation dL and predetermined setting value calculated is compared, in the feelings that elongation dL is more than setting value
Shown under condition by text importing, the image of display part 50 or luminescence display (including flickering display) notifies to need to change to drive
The situation of dynamic chain 10.Even if display part 50 is arranged at the framework lid for not unloading escalator 1, user, maintenance personal also can
The position of easily visuognosis.
In addition, period, such as of escalator 1 is not taken in the calculating processing of angular speed calculating part 42 preferably in passenger
Carried out in trial operation before being provided with the shop of escalator 1, the running a shop of station etc..Enter when the period in occupant ride
In the case that row calculating is handled, in order to exclude the influence of occupant ride, or in order to weaken the influence of occupant ride, it can also ask
Go out the average value of the result of calculation of many secondary amounts, lengthening variable portion 44 is supplied to using the average value as result of calculation.
Next, illustrating the relation of the rotation of drive sprocket 6 and the operation of drive chain 10 by Fig. 6.
The tooth of the drive sprocket 6 of each chain roller 24 of drive chain 10 on one side successively with being rotated with constant speed enters
Row engagement, while mobile.In the movement, the rotary speed (angular speed) and chain of the drive sprocket 6 that chain roller 24A is engaged
The speed v1 of bar roller 24B movements is completely inconsistent.Speed v1 is in geometrically pulsed (variation).
The speed v1 including the geometric pulsation can be calculated in theory.Illustrate this method.
The chain roller 24A engaged with drive sprocket 6 along with drive sprocket 6 rotation, with constant angular speed to
Right advance slight rotation angles d θ.Now, chain roller 24B is geometrically passing through following formula relative to the position X1 of drive sprocket 6
(1) obtain.
P is chain pitch (the mutual distance of each bearing pin 25), and R is the reference radius of drive sprocket 6, and θ is drive chain
The anglec of rotation (rotation position) of chain roller 24 on wheel 6.
Speed v1 is the time diffusion of " P-X1 ", so, calculated by the form of following formula (2).
After formula (2) are calculated, speed (speed of service) v1 of drive chain 10 is represented with following formula (3).
As shown in fig. 7, speed v1 is engaged by each chain roller 24 and the tooth of drive sprocket 6 of drive chain 10
Constant cycle including a few percent of peripheral speed relative to drive sprocket 6 or so variation be so-called pulsation ripple
Shape.By carrying out differential to speed v1, as shown in figure 8, the acceleration v1acc of drive chain 10 can be obtained.Acceleration
V1acc is also to include the waveform of pulsation.Dotted line in Fig. 7 represent drive chain 10 extend in the case of speed v1
Value.If speed v1 variation can be caught, then it is assumed that the elongation of drive chain 10 can be detected.
However, having been extended in drive chain 10 in the case of 1%, the acceleration v1acc of drive chain 10 ripple amplitude
At most also only change 1~2% or so.The small variable quantity is buried in deviation of cogging of motor 4 etc., it is difficult to straight
Connect detection.
In contrast, the acceleration v1acc of drive chain 10 pulsation is rendered as driving as by drive chain 10
Inertia load driven sprocket 8 angular speed v2 in big pulsation in the state of further overlapping pulsation.Angle speed
Degree v2 pulsation is reliably appeared in the cogging of motor 4.Also, the cogging of motor 4 is appeared in by motor control
In the waveform for the torque component electric current Iq that portion 41 is detected.Therefore, angular speed calculating part 42 is according to torque component electric current Iq, Neng Gouji
Calculate the angular speed v2 and angular speed v2 of driven sprocket 8 ripple amplitude.
Next, being pulsed in drive chain 10 with theoretical speed v1 while when being run, calculating driven sprocket 8
Angular speed v2 how to change in theory.
In addition, in calculating here, on the drive chain 10 between drive sprocket 6 and driven sprocket 8, it is contemplated that chain link
Number is the situation of " n ".In this case, the distance between drive sprocket 6 and driven sprocket 8 L are represented by following formula (4).
L=nP ... formulas (4)
The drive chain 10 is because long-time is used and has equably extended the variable quantity apart from L in the case of m% i.e.
Elongation dL is calculated by following formula (5).
DL=nPm/100 ... formulas (5)
The drive chain 10 for being roughly shown as new product in fig .9 and not yet extending is engaged to drive sprocket 6 and driven
The state of sprocket wheel 8.The anglec of rotation (rotation position) of 1st chain roller 24 as defined on drive sprocket 6 is shown as θ 1, will be driven
The anglec of rotation of defined 2nd chain roller 24 on sprocket wheel 8 is shown as θ 2.
In the case of using and having extended in a long time in the drive chain 10, as shown in Figure 10, even if drive sprocket 6
On defined 1st chain roller 24 the anglec of rotation be all defined 2nd chain roller 24 on θ 1, driven sprocket 8 rotation
Angle also rearward offset by phase angle [alpha] from initial θ 2.The phase offset angle α is set to by the reference radius of driven sprocket 8
In the case of R2, calculated by following formula (6).
α=dL/R2=nPm/ (100R2) ... formulas (6)
If phase offset angle α can be obtained by some way, chain elongation dL can be unique by following formula (7)
Ground is calculated.
DL=α R2 ... formulas (7)
Next, calculating the angular speed v2 of driven sprocket 8.The speed v1 of the drive chain 10 driven by drive sprocket 6
Calculated by above-mentioned formula (3).The angular speed v2 of the driven sprocket 8 driven by speed v1 drive chain 10 is in drive chain
In the case that bar 10 extends and generates phase offset angle α, become the form of following formula (8).
, as shown in figure 11, can be by the angular speed v2 of driven sprocket 8 and angular speed v2 pulsation width according to the formula (8)
Degree is mapped with multiple phase offset angle α and calculated in theory.In order to be readily appreciated that, phase offset angle α is only shown
0 degree, 15 degree, 30 degree of 3 result of calculations, but in actual calculating it is contemplated that scope phase offset α, be
Calculated in wide scope.Figure 12 data are using the angular speed v2 calculated ripple amplitude with being used as the multiple of parameter
Phase offset angle α is shown with being mapped.Angular speed v2 ripple amplitude is small in the small regions of phase offset angle α, but with
Phase offset angle α increases and slowly become big.
Theoretical value calculating part 43 calculates angular speed v2 and the angular speed v2 ripple amplitude by above-mentioned formula (8), is made
For theoretical angular speed v2theory and the ripple amplitude of the theoretical angular speed v2theory, as shown in figure 12 with phase offset angle
The form for the data form that α is mapped is kept.
Next, the influence that torque of the pulsation of the speed of explanation step drive chain 13 to motor 4 is caused.
The rotation of the driven sprocket 8 rotated with angular speed v2 via the rotary shaft for being fixed on driven sprocket 8 step
Drive sprocket 9 is delivered to step drive chain 13.Thus, step drive chain 13 and substantial amounts of step 14 are in step drive sprocket
Circular flow between 9 and step driven sprocket 12.The angular speed v2 of driven sprocket 8 is directly becoming in the state of including pulsation
The movement velocity of step drive chain 13 and each step 14.The respective quality of step 14 is being set to mm, the number by step 14
In the case of being set to nn, total inertia weight Mtotal of whole steps 14 is following formula (9).
Mtotal=mmnn ... formulas (9)
Total inertia weight Mtotal is driven with angular speed v2, so the inertia force F produced in the driving is following formula
(10)。
F=Mtotal × dv2/dt ... formulas (10)
In order to drive it, the torque T of motor 4 probably includes the pulsation Ttotal represented by following formula (11).
Ttotal=F/R=Mtotal/Rdv2/dt ... formulas (11)
Waveform obtained from pulsation Ttotal carries out differential to the angular velocity v2 shown in Figure 11 is similar, appears in by horse
In the torque component electric current Iq detected up to control unit 41 waveform.
Angular speed calculating part 42 catches the pulsation Ttotal occurred in torque component electric current Iq waveform, performs to use and is somebody's turn to do
The computing of pulsation Ttotal following formula (12), so as to the reality for the angular speed v2 that driven sprocket 8 is calculated as v2real
Value.
V2real=∫ (TtotalR/Mtotal) dt......... formulas (12)
Then, lengthening variable portion 44 is being calculated multiple theoretical angular speed of (holding) by theoretical value calculating part 43
In v2theory ripple amplitude, " the angular speed v2 (=v2real) pulsation with being calculated by angular speed calculating part 42 is selected
Amplitude " identical " theoretical angular speed v2theory ripple amplitude ", is obtained and selected " theory from theoretical value calculating part 43
The phase offset angle α that angular speed v2theory ripple amplitude " is mapped, performs and uses accessed phase offset angle α
Above-mentioned formula (7) computing, so as to calculate the elongation dL of drive chain 10.
By notification unit 45, text importing is carried out to the elongation dL calculated in display part 50.User, maintenance people
Member is by seeing the display part 50, and the operation without entering to exercise escalator 1 stops and unloaded framework lid of escalator 1 etc. temporarily
Large-scale operation, can easily and reliably recognize the elongation dL of drive chain 10.It can mitigate and maintenance personal is made
Into burden, and can eliminate due to the inconvenience of user caused by the stopping of operation.
It is configured to carry out vector controlled to motor 4 and inverter 31 by controller 40, according to being used as the vector controlled
The torque component electric current Iq of key element, the controller 40 calculates the elongation dL of drive chain 10, so without motor control
Swivel plate, pulse counter, and also without being installed on the adjunct of step drive chain, by the special device such as sensor
Tool, can easily and reliably catch the elongation dL of drive chain 10 by simple structure.Therefore, cost is not produced
Rise.Also without the adjustment operation of utensil, so the burden of operator can be mitigated.
In the case where the elongation dL calculated is more than predetermined setting value, by notification unit 45, pass through
Text importing, the image of display part 50 show or luminescence display (including flickering display) come notify to need change drive chain 10
Situation.Thereby, it is possible to drive chain 10 and sprocket wheel 6,8 engage generation exception before, and worn and torn in sprocket wheel 6,8
Before, drive chain 10 is replaced with new product.
[2] the 2nd embodiments
Figure 13 illustrates the control circuit of the 2nd embodiment.
Controller 40 include extraction unit 46, angular speed calculating part 42a, 42b, 42c, theoretical value calculating part 43a, 43b, 43c,
Lengthening variable portion 44a, 44b, 44c, notification unit 45.
Extraction unit 46 is extracted from the torque component electric current Iq detected by motor control part 41, respectively includes driven sprocket 8
Angular speed v2 pulsation frequency band torque component electric current (the 1st torque component electric current) Iq1 including step driven sprocket 12
Torque component electric current (the 2nd torque component electric current) Iq2 of the frequency band of angular speed v2 pulsation and including handrail driven sprocket
Torque component electric current (the 3rd torque component electric current) Iq3 of the frequency band of 16 angular speed v2 pulsation, extraction unit 46 uses such as band
Bandpass filter.
Angular speed calculating part 42a catches the angle with driven sprocket 8 from the torque component electric current Iq1 extracted by extraction unit 46
The pulsation of the torque of the speed v2 corresponding motor 4 of pulsation, by the fortune that above-mentioned formula (12) is carried out based on the pulsation captured
Calculate, the angular speed v2 and angular speed v2 of driven sprocket 8 ripple amplitude are calculated successively.
Angular speed calculating part 42b is caught and step driven sprocket from the torque component electric current Iq2 extracted by extraction unit 46
The pulsation of the torque of the 12 angular speed v2 corresponding motor 4 of pulsation, by carrying out above-mentioned formula based on the pulsation captured
(12) computing, calculates the angular speed v2 and angular speed v2 of step driven sprocket 12 ripple amplitude successively.
Angular speed calculating part 42c is caught and handrail driven chain from the torque component electric current Iq3 extracted by extraction unit 46
The pulsation of the torque of the angular speed v2 of the wheel 16 corresponding motor 4 of pulsation, by carrying out above-mentioned formula based on the pulsation captured
(12) computing, calculates the angular speed v2 and angular speed v2 of handrail driven sprocket 16 ripple amplitude successively.
Theoretical value calculating part 43a and lengthening variable portion 44a function and the theoretical value calculating part 43 of the 1st embodiment and
The function phase in lengthening variable portion 44 is same.Therefore, the description thereof will be omitted.
The indexing that theoretical value calculating part 43b passes through the chain pitch P based on step drive chain 13, step drive sprocket 9
The various elements such as radius of circle R, the reference radius R2 of step driven sprocket 12 carry out the computing of above-mentioned formula (8), and step driving
Defined 1st chain roller 24 of chain 13 is engaged to the defined of opportunity of step drive sprocket 9 and step drive chain 13
Predetermined multiple phase offset angle α that 2nd chain roller 24 is engaged to the opportunity of step driven sprocket 12 are mapped ground
Calculate and keep the theoretical angular speed v2theory and the theoretical angular speed v2theory of step driven sprocket 12 ripple amplitude.
Theoretical value calculating part 43c passes through chain pitch P based on handrail drive chain 17, handrail drive sprocket 15
The various elements such as reference radius R, the reference radius R2 of handrail driven sprocket 16 carry out the computing of above-mentioned formula (8), and help
Defined 1st chain roller 24 of hand strap drive chain 17 is engaged to opportunity and the handrail drive chain of handrail drive sprocket 15
Articles 17 defined 2nd chain roller 24 is engaged to predetermined multiple phase offsets on the opportunity of handrail driven sprocket 16
Angle α is calculated and is kept the theoretical angular speed v2theory and the theoretical angular speed of handrail driven sprocket 16 with being mapped
V2theory ripple amplitude.
Lengthening variable portion 44a function and the function phase in the lengthening variable portion 44 of the 1st embodiment is same.Therefore, save
Omit its explanation.
Lengthening variable portion 44b is being calculated multiple theoretical angular speed v2theory of (holding) by theoretical value calculating part 43b
Ripple amplitude in, select " angular speed v2 ripple amplitude " identical " the theoretical angle speed calculated with angular speed calculating part 42b
Spend v2theory ripple amplitude ", obtained and selected " theoretical angular speed v2theory arteries and veins from theoretical value calculating part 43b
The phase offset angle α that dynamic amplitude " is mapped, step drive chain 13 is calculated according to accessed phase offset angle α
Elongation dL.
Lengthening variable portion 44c from by theoretical value calculating part 43c calculate (holding) multiple theoretical angular speed v2theory
Ripple amplitude in, select " angular speed v2 ripple amplitude " identical " the theoretical angle speed calculated with angular speed calculating part 42c
Spend v2theory ripple amplitude ", obtained and selected " theoretical angular speed v2theory arteries and veins from theoretical value calculating part 43c
The phase offset angle α that dynamic amplitude " is mapped, handrail drive chain 17 is calculated according to accessed phase offset angle α
Elongation dL.
Notification unit 45 notifies to be calculated respectively by lengthening variable portion 44a, 44b, 44c by the text importing of display part 50
Each elongation dL gone out, and each elongation dL calculated is compared respectively with predetermined setting value, pass through
Text importing, the image of display part 50 show or luminescence display (including flickering display) come notify need change with each elongation
Some in dL is the corresponding drive chain of situation more than setting value.
Because the weight of substantial amounts of step 14 puts on step drive chain 13, so the angular speed of step driven sprocket 12
V2 pulsation is appeared in torque component electric current Iq2 as the torque pulsation that can be caught.Accordingly, with respect to step drive chain
13 elongation dL, also can reliably be detected in the same manner as the elongation dL of drive chain 10.
But, the handrail 20 driven by handrail drive chain 17 is main by resin and Bu Lai manufactures, so weight
Gently.Consider this point, it is as shown in figure 14, built-in to be used to make total inertia weight in the rotary shaft 16a of handrail driven sprocket 16
The increased inertial mass elements 60 of Mtotal.
The weight of inertial mass elements 60 puts on handrail driven sprocket 16, so that the angle speed of handrail driven sprocket 16
Degree v2 pulsation is appeared in torque component electric current Iq3 as the torque pulsation that can be caught.Accordingly, with respect to handrail driving
The elongation dL of chain 17, also can be in the same manner as the elongation dL of drive chain 10 and the elongation dL of step drive chain 13
Reliable detection.
Other structures, effect, effect are identical with the 1st embodiment.
In addition it is also possible to be configured to pulsation and the handrail driven sprocket 16 of the angular speed v2 on step driven sprocket 12
Angular speed v2 pulsation, average value is obtained respectively, by calculated average value change be used as elongation detect key element.
[3] the 3rd embodiments
Figure 15 illustrates the control circuit of the 3rd embodiment.
Controller 40 includes theoretical value storage part 47 to replace the theoretical value calculating part 43 of the 1st embodiment.Other structures
It is identical with the 1st embodiment.
The phase for calculating and keeping with the theoretical value calculating part 43 of the 1st embodiment is calculated by outside computer etc.
Same theoretical angular speed v2theory and its ripple amplitude, theoretical value is stored in advance in using its result of calculation as data form
In storage part 47.
Other structures, effect, effect are identical with the 1st embodiment.
[4] the 4th embodiments
In the 1st embodiment, the key element that the angular speed v2 of driven sprocket 8 pulsation is detected as elongation, but
In 4th embodiment, angular acceleration v2acc is used as the key element that elongation is detected obtained from angular velocity v2 is carried out into differential.
Theoretical value calculating part 43 calculates angular acceleration v2acc and the angular acceleration v2acc ripple amplitude, as reason
By angular acceleration v2acctheory and the ripple amplitude of the theoretical angular acceleration v2acctheory, as illustrated in fig. 16 with phase
The form for the data form that position offset angle is mapped is kept.
Obtain angle by carrying out differential to the angular speed v2 calculated by angular speed calculating part 42 and add in lengthening variable portion 44
Speed v2acc and angular acceleration v2acc ripple amplitude.Then, lengthening variable portion 44 is counted from by theoretical value calculating part 43
In the ripple amplitude for the multiple theoretical angular acceleration v2acctheory for calculating (holding), select and the above-mentioned " angular acceleration obtained
V2acc ripple amplitude " identical " theoretical angular acceleration v2acctheory ripple amplitude ", is obtained from theoretical value calculating part 43c
The phase offset angle α being mapped with selected " theoretical angular acceleration v2acctheory ripple amplitude " is taken, according to being obtained
The phase offset angle α got calculates the elongation dL of drive chain 10.
Other structures, effect, effect are identical with the 1st embodiment.
[5] the 5th embodiments
Figure 17 illustrates the control circuit of the 5th embodiment.
Controller 40 except the extraction unit 46 including the 1st embodiment, angular speed calculating part 42, theoretical value calculating part 43,
Outside lengthening variable portion 44, notification unit 45, in addition to maintaining part 48.
Maintaining part 48 regularly, such as each two month keeps the angular speed v2 calculated by angular speed calculating part 42 and should
Angular speed v2 ripple amplitude.
Lengthening variable portion 44 performs elongation whenever the regular holding of maintaining part 48 of stipulated number such as 3 times is carried out
Measure the processing calculated.
As the angular speed v2 regularly kept, for example as shown in figure 18, mutually different value is obtained.In this example embodiment,
The angular speed v2 of 3 secondary amounts kept at first is slowly reduced, then, and the angular speed v2 of 3 secondary amounts kept slowly increases.That is, angle
Speed v2 becomes in use initial stages of the phase offset α less than 10 degree along with phase offset α increase to reduction direction
Change (3 circular marks), thereafter, in the stage that phase offset α increases to more than 10 degree, along with phase offset α increase
And to increase direction change (3 triangle marks).
Other structures, effect, effect are identical with the 1st embodiment.
In addition it is also possible to be configured to that the change of the angular speed v2 shown in Figure 18 is turned to theoretical angular speed curve and stepped in advance
In the internal storage for remembering controller 40, whenever the angular speed calculated by lengthening variable portion 44 v2 is remained into maintaining part
When in 48, phase offset α corresponding with the angular speed v2 of the holding is extracted from theoretical angular speed curve, according to what is extracted
Phase offset α calculates the elongation dL of drive chain 10.
[6] effect of embodiment
Chain loading device and passenger conveyors and the chain elongation inspection of at least one embodiment as stated above
Survey method, the elongation dL of drive chain 10 is calculated according to torque component electric current Iq, so without using special utensil just
The elongation of drive chain 10 can be reliably detected.
[7] variation
Even with the drive chain 10 at initial stage, according to the nibbling for drive sprocket 6 and driven sprocket 8 of drive chain 10
Conjunction state, it is also possible to which, from starting there is the phase offset α that can not ignore, it occurs as the error that elongation is detected.
As countermeasure, phase offset α will can also be artificially determined when beginning to use drive chain 10 and be surveyed
Determine the structure that result is input to controller 40 as phase offset α initial value α 0 and be attached to the respective embodiments described above.For example,
Controller 40 will be connected to for inputting initial value α 0 operating portion.In this case, lengthening variable portion 44 is according to from operation
The phase offset angle α that the amount for the initial value α 0 that portion is pre-entered is got to reduction correction for direction from theoretical value calculating part 43, root
The elongation dL of drive chain 10 is calculated according to the phase offset angle α corrected.
According to such structure, the elongation dL of drive chain 10 can be more reliably detected.
In the respective embodiments described above, carry out having being sweared without sensor for speed supposition with the motor control part 41 of controller 40
It is illustrated in case of amount control, but is being configured to prepare to detect the velocity sensor of the speed of motor 4 and is inciting somebody to action
In the case that the speed of detection of the velocity sensor feeds back to controller 40, can also be configured to motor control part 41 is not had
The vector controlled that speed speculates.
In the respective embodiments described above, the chain loading device for the chain being driven by a motor as being equipped with and illustrate to multiply
Objective conveyer and the escalator 1 as its concrete example, but as long as being the device for being equipped with the chain being driven by a motor, are being set
In road surface, the moving elevator of floor, the crane for slinging goods, goods is lifted come in forklift for transporting etc., also can be same
Implement on ground.
In addition, the respective embodiments described above are to propose as an example, it is not intended that limit the scope of invention.The new reality
The mode of applying can be implemented by other various modes, in the range of the purport of invention is not departed from, can carry out it is various omit,
Displacement, change.Present embodiment and its deformation are contained in the scope of invention, purport, and are contained in note in claims
In the invention of load and its equivalency range.
Claims (6)
1. a kind of chain loading device, the rotation of motor is delivered to the 1st sprocket wheel by it, by chain by the rotation of the 1st sprocket wheel
The 2nd sprocket wheel is delivered to, and possesses inverter of the output to the driving electric power of the motor, and the chain loading device has
Torque component electric current and the excitation in the motor are detected in preparation controller, the electric current that the controller flows through from the motor
Current weight, the speed of the motor is speculated according to detected torque component electric current and excitation component electric current, and control is described
Inverter so that the supposition speed turn into target velocity,
The chain loading device is characterised by,
The controller is controlled as follows：
According to the torque component electric current, the ripple amplitude of " angular speed " or " angular acceleration " of the 2nd sprocket wheel is calculated,
Be engaged to the opportunity of the 1st sprocket wheel with the chain and the chain be engaged to the 2nd sprocket wheel opportunity it is advance
Multiple " offsets " determined accordingly calculate or kept " the theoretical angular speed " of the 2nd sprocket wheel or " theoretical angle accelerates
The ripple amplitude of degree ",
In the ripple amplitude of " theoretical angular speed " or " theoretical angular acceleration " according to calculating or keep and meter
" offset " corresponding to the ripple amplitude identical ripple amplitude of " angular speed " or " angular acceleration " that calculate, is calculated
The elongation of the chain.
2. a kind of passenger conveyors, the rotation of motor is delivered to main drive sprocket by it, by main drive chain bar by the main driving
The rotation of sprocket wheel is delivered to principal and subordinate's movable sprocket, and step drive sprocket and handrail drive sprocket are arranged at into principal and subordinate's movable sprocket
Rotary shaft, step drive chain is set up between the step drive sprocket and step driven sprocket, in the handrail drive chain
Handrail drive chain is set up between wheel and handrail driven sprocket, and possesses the inverse of driving electric power of the output to the motor
Become device, and possess the torque point detected in controller, the electric current that the controller flows through from the motor in the motor
Electric current and excitation component electric current are measured, the speed of the motor is speculated according to detected torque component electric current and excitation component electric current
Degree, control the inverter so that the supposition speed turn into target velocity,
The passenger conveyors are characterised by,
The controller includes：
Unit the 1st, it calculates " angular speed " or " angular acceleration " of principal and subordinate's movable sprocket according to the torque component electric current
Ripple amplitude；
Unit the 2nd, the opportunity that itself and the main drive chain bar are engaged to the main drive sprocket engages with the main drive chain bar
Predetermined multiple " offsets " to the opportunity of principal and subordinate's movable sprocket accordingly calculate or kept the main driven chain
The ripple amplitude of " the theoretical angular speed " or " theoretical angular acceleration " of wheel；And
Unit the 3rd, it is according to " the theoretical angular speed " or " theoretical angular acceleration " for being calculated by Unit the 2nd or being kept
The ripple amplitude identical arteries and veins of " angular speed " or " angular acceleration " in ripple amplitude and being calculated by Unit the 1st
" offset " corresponding to dynamic amplitude, calculates the elongation of the main drive chain bar.
3. passenger conveyors according to claim 2, it is characterised in that
The controller also includes：
Extraction unit, it extracts the pulsation of " angular speed " that includes principal and subordinate's movable sprocket from the torque component electric current
2nd torque of the frequency band of the pulsation of the 1st torque component electric current of frequency band and " angular speed " including the step driven sprocket point
Measure electric current；
Unit the 4th, it calculates the step driven according to the 2nd torque component electric current extracted by the extraction unit
The ripple amplitude of " angular speed " or " angular acceleration " of sprocket wheel；
Unit the 5th, itself and the step drive chain are engaged to the opportunity of the step drive sprocket and the step drive chain
Predetermined multiple " offsets " that bar is engaged to the opportunity of the step driven sprocket accordingly calculate or kept described
The ripple amplitude of " the theoretical angular speed " or " theoretical angular acceleration " of step driven sprocket；And
Unit the 6th, it is according to " the theoretical angular speed " or " theoretical angular acceleration " for being calculated by Unit the 5th or being kept
The ripple amplitude identical arteries and veins of " angular speed " or " angular acceleration " in ripple amplitude and being calculated by Unit the 4th
" offset " corresponding to dynamic amplitude, calculates the elongation of the step drive chain,
Unit the 1st calculates the main driven chain according to the 1st torque component electric current extracted by the extraction unit
The ripple amplitude of " angular speed " or " angular acceleration " of wheel.
4. passenger conveyors according to claim 3, it is characterised in that
The handrail driven sprocket is by the increased inertial mass elements bag of inertia weight for making the handrail driven sprocket
In the rotary shaft for being contained in the handrail driven sprocket,
The extraction unit extracts the 1st torque component electric current, the 2nd torque component from the torque component electric current
3rd torque component electric current of the frequency band of the pulsation of electric current and " angular speed " including the handrail driven sprocket,
The controller also includes：
Unit the 7th, its according to the 3rd torque component electric current that is extracted by the extraction unit, calculate the handrail from
The ripple amplitude of " angular speed " or " angular acceleration " of movable sprocket；
Unit 8, itself and the handrail drive chain are engaged to the opportunity of the handrail drive sprocket and the handrail
Drive chain be engaged to predetermined multiple " offsets " on the opportunity of the handrail driven sprocket accordingly calculate or
Keep the ripple amplitude of " the theoretical angular speed " or " theoretical angular acceleration " of the handrail driven sprocket；And
Unit the 9th, it is according to " the theoretical angular speed " or " theoretical angular acceleration " for being calculated by the unit 8 or being kept
The ripple amplitude identical arteries and veins of " angular speed " or " angular acceleration " in ripple amplitude and being calculated by Unit the 7th
" offset " corresponding to dynamic amplitude, calculates the elongation of the handrail drive chain.
5. chain loading device according to claim 1 or according to any one of claim 2 to claim 4 institute
The passenger conveyors stated, it is characterised in that
The controller also includes notification unit, and the notification unit notifies the elongation calculated, and in the elongation
To notify the situation in the case of more than setting value.
6. a kind of chain elongation detection method, this method is the chain elongation detection method of following device, and the device is by motor
Rotation is delivered to the 1st sprocket wheel, the rotation of the 1st sprocket wheel is delivered into the 2nd sprocket wheel by chain, and possess output to the horse
The inverter of the driving electric power reached, detect in the electric current flowed through from the motor torque component electric current in the motor and
Excitation component electric current, the speed of the motor, control are speculated according to detected torque component electric current and excitation component electric current
The inverter so that the supposition speed turn into target velocity,
The chain elongation detection method is characterised by,
According to the torque component electric current, the ripple amplitude of " angular speed " or " angular acceleration " of the 2nd sprocket wheel is calculated,
Be engaged to the opportunity of the 1st sprocket wheel with the chain and the chain be engaged to the 2nd sprocket wheel opportunity it is advance
Multiple " offsets " determined accordingly calculate or kept " the theoretical angular speed " of the 2nd sprocket wheel or " theoretical angle accelerates
The ripple amplitude of degree ",
In the ripple amplitude of " theoretical angular speed " or " theoretical angular acceleration " according to calculating or keep and meter
" offset " corresponding to the ripple amplitude identical ripple amplitude of " angular speed " or " angular acceleration " that calculate, is calculated
The elongation of the chain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-018142 | 2016-02-02 | ||
| JP2016018142A JP6074076B1 (en) | 2016-02-02 | 2016-02-02 | Chain mounting device, passenger conveyor and chain stretch detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107021412A true CN107021412A (en) | 2017-08-08 |
| CN107021412B CN107021412B (en) | 2018-10-12 |
Family
ID=57937532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610415904.XA Active CN107021412B (en) | 2016-02-02 | 2016-06-14 | Chain loading device and passenger conveyors and chain elongation detection method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6074076B1 (en) |
| CN (1) | CN107021412B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061944A (en) * | 2019-06-10 | 2020-12-11 | 东芝电梯株式会社 | Control method of passenger conveyor |
| US10954104B2 (en) | 2018-05-16 | 2021-03-23 | Otis Elevator Company | Chain defect monitoring in a people conveyor |
| CN112875483A (en) * | 2019-11-29 | 2021-06-01 | 东芝电梯株式会社 | Chain slack detecting device of passenger conveyor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7362562B2 (en) * | 2020-08-03 | 2023-10-17 | 東芝エレベータ株式会社 | Passenger conveyor chain stretch detection device |
| KR102454822B1 (en) * | 2022-08-26 | 2022-10-14 | (주)한국알앤드디 | Trim adjustment device for drive of ships |
| JP7268792B1 (en) | 2022-11-01 | 2023-05-08 | 三菱電機ビルソリューションズ株式会社 | Anomaly detector for passenger conveyor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241072A (en) * | 2001-02-20 | 2002-08-28 | Mitsubishi Electric Building Techno Service Co Ltd | Device and method of measuring elongation of footstep chain of passenger conveyor |
| JP2003292280A (en) * | 2002-04-02 | 2003-10-15 | Mitsubishi Electric Building Techno Service Co Ltd | Apparatus and method for diagnosing slack quantity of driving chain for passenger conveyor |
| JP2004177196A (en) * | 2002-11-26 | 2004-06-24 | Hitachi Plant Eng & Constr Co Ltd | Device and method for detecting chain elongation |
| EP1850087A1 (en) * | 2006-04-25 | 2007-10-31 | Prüftechnik Dieter Busch Ag | Method and apparatus for monitoring the elongation of a drive chain |
| CN101397113A (en) * | 2007-09-25 | 2009-04-01 | 株式会社日立制作所 | Diagnosis device of chain slack for passenger conveying equipment and diagnosis method |
| JP2009084028A (en) * | 2007-10-02 | 2009-04-23 | Hitachi Building Systems Co Ltd | Diagnostic method of chain of passenger conveyor |
| CN101423170A (en) * | 2007-11-01 | 2009-05-06 | 株式会社日立制作所 | Passenger transfer device |
| CN102417136A (en) * | 2010-09-27 | 2012-04-18 | 株式会社日立制作所 | Diagnosis device of passenger conveyor |
| CN104176609A (en) * | 2013-05-20 | 2014-12-03 | 东芝电梯株式会社 | Automatic handrail |
-
2016
- 2016-02-02 JP JP2016018142A patent/JP6074076B1/en active Active
- 2016-06-14 CN CN201610415904.XA patent/CN107021412B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241072A (en) * | 2001-02-20 | 2002-08-28 | Mitsubishi Electric Building Techno Service Co Ltd | Device and method of measuring elongation of footstep chain of passenger conveyor |
| JP2003292280A (en) * | 2002-04-02 | 2003-10-15 | Mitsubishi Electric Building Techno Service Co Ltd | Apparatus and method for diagnosing slack quantity of driving chain for passenger conveyor |
| JP2004177196A (en) * | 2002-11-26 | 2004-06-24 | Hitachi Plant Eng & Constr Co Ltd | Device and method for detecting chain elongation |
| EP1850087A1 (en) * | 2006-04-25 | 2007-10-31 | Prüftechnik Dieter Busch Ag | Method and apparatus for monitoring the elongation of a drive chain |
| CN101397113A (en) * | 2007-09-25 | 2009-04-01 | 株式会社日立制作所 | Diagnosis device of chain slack for passenger conveying equipment and diagnosis method |
| JP2009084028A (en) * | 2007-10-02 | 2009-04-23 | Hitachi Building Systems Co Ltd | Diagnostic method of chain of passenger conveyor |
| CN101423170A (en) * | 2007-11-01 | 2009-05-06 | 株式会社日立制作所 | Passenger transfer device |
| CN102417136A (en) * | 2010-09-27 | 2012-04-18 | 株式会社日立制作所 | Diagnosis device of passenger conveyor |
| CN104176609A (en) * | 2013-05-20 | 2014-12-03 | 东芝电梯株式会社 | Automatic handrail |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10954104B2 (en) | 2018-05-16 | 2021-03-23 | Otis Elevator Company | Chain defect monitoring in a people conveyor |
| CN112061944A (en) * | 2019-06-10 | 2020-12-11 | 东芝电梯株式会社 | Control method of passenger conveyor |
| CN112875483A (en) * | 2019-11-29 | 2021-06-01 | 东芝电梯株式会社 | Chain slack detecting device of passenger conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017137156A (en) | 2017-08-10 |
| CN107021412B (en) | 2018-10-12 |
| JP6074076B1 (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107021412B (en) | Chain loading device and passenger conveyors and chain elongation detection method | |
| JP6085668B2 (en) | Weighing equipment for weighing slaughterhouse and its usage | |
| EP2865616B1 (en) | Conveyor device and weight detection method using conveyor device | |
| US8050795B2 (en) | Conveyor drive control system | |
| US7918326B2 (en) | Driving system for passenger transportation | |
| CN111479769A (en) | Method and apparatus for customizing personnel transportation equipment to be manufactured by creating digital avatar | |
| CN102897640A (en) | Drive system for driving moving walkways | |
| JP2007524551A (en) | Moving walkway, moving slope, or escalator | |
| JP2003516290A (en) | Method and apparatus for reducing polygon effects in a reversal zone of a pedestrian conveyor system | |
| CN107580584A (en) | The pedal unit for personnel's conveyer including cantilever | |
| JP4122288B2 (en) | Method for guiding a link plate chain in the reversing device area of a pedestrian conveyor system | |
| US6988608B2 (en) | Drive system for escalators and pedestrian conveyors | |
| EP1897837B1 (en) | Carriage having front and rear drive wheels | |
| CN105947865B (en) | Conveying device | |
| EP0885159B1 (en) | Link chain guide | |
| JP2017167132A (en) | Elongation measurement device and elongation measurement method | |
| US701459A (en) | Passenger or goods elevator or conveyer. | |
| CN109678040A (en) | Personnel's conveyer and the determining method for driving the power of the armrest element of personnel's conveyer | |
| CN205772733U (en) | The driving means of passenger conveyors | |
| CN212892365U (en) | Intelligent logistics conveying equipment | |
| CN205589911U (en) | Yardage roll conveyor of cloth machine is spread to multilayer | |
| CN210527558U (en) | Jacking transfer machine | |
| CN104718008A (en) | Ferris wheel, units therefor and device for installing same | |
| EP0369564A2 (en) | Exercise machine | |
| CN106144463A (en) | Flexible assembly wire system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |