EP3102523A1 - Messsystem und messverfahren zur prüfung der fangvorrichtung eines aufzugs - Google Patents
Messsystem und messverfahren zur prüfung der fangvorrichtung eines aufzugsInfo
- Publication number
- EP3102523A1 EP3102523A1 EP15703560.1A EP15703560A EP3102523A1 EP 3102523 A1 EP3102523 A1 EP 3102523A1 EP 15703560 A EP15703560 A EP 15703560A EP 3102523 A1 EP3102523 A1 EP 3102523A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator car
- counterweight
- measuring device
- safety gear
- distance measuring
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
- B66B5/0093—Testing of safety devices
Definitions
- the invention relates to a measuring system and a measuring method for determining a characteristic None safety gear of a cable lift according to the preamble of the independent claims.
- a cable lift comprises a guided in an elevator car cabin, which is connected via a cable, which is connected via a traction sheave and connected to a counterweight.
- the counterweight typically has the mass of the elevator car plus half the rated load of the elevator.
- the elevator car is guided along a cabin guide, in particular a guide linkage in an elevator shaft.
- a safety device is provided, which is to prevent the crash of a cabin, for example, in case of cable breakage or failure of a brake. If the permissible speed of the elevator car is exceeded, a centrifugal or speed controller triggers the safety gear. Friction linings between the safety gear and the track brakes the movement of the car.
- a central test instruction is aimed at testing the safety gear, in which the effectiveness of the safety gear is checked as the central safety device of the cable lift.
- the basis of a safety gear check is to ensure the absorption of high kinetic energy to ensure that the safety gear functions reliably in extreme cases. Thus, when a load of additional mass in an elevator car is not ensured that a comparable safety gear in different lifts at the same loadings to the same extent can be tested for their functionality.
- an accelerometer can be used, or by an optical elevator tester, as described in EP 2 221 268 A1, are used.
- the elevator car is moved at an increased speed, for example at a speed of 40 % of 140% of the rated speed vn , where a speed limiter which triggers the safety gear on the elevator car at overspeed results in a speed Catch energy at increased speed (assuming the deceleration remains with a Fa g > 1 g, so that the mass of the counterweight does not matter) of ( V 140%) * p ( ,
- the energy consumed at the increased speed can thus be increased, and depends on the initially determined traction force and the quadrant of the increased driving speed: f ( l40% ) * f ⁇ 6
- the capture energy is 1 .400 J.
- aF ang > 1 g is set by setting different speeds of the elevator car different trapping energies so that the effectiveness of the safety gear regardless of the mass of the counterweight or the achievable acceleration by the Safety gear can be tested.
- a characteristic value of the safety gear or a catch energy to be checked can be determined, which is independent of the design of the elevator car.
- a safety gear which provides a high deceleration effect and thus achieves a short deceleration path, converts a small amount of energy into heat, with only a small amount of energy flowing into a positional change of the counterweight.
- a relatively weak safety gear which requires a long deceleration path, more energy flows into the lifting of the counterweight, whereby a high amount of heat energy has to be absorbed by the long deceleration path.
- the amount of energy that is converted into heat by the safety gear during the test is thus highly dependent on the catching delay.
- the load on the safety gear in the test with an overload of, for example, 125% of the nominal cabin load is disadvantageous, since the load for the components to be tested varies very differently.
- FIG. 3 shows, by way of example, a diagram of the catching force in safety gears which can apply an acceleration of 8 to 38 m / s 2 for an empty driving cab.
- a weak safety gear that is only a low Delay reached, if the elevator car is loaded with increased mass, would have to absorb a thermal energy of E Fa ng 3,000 J.
- a strong high deceleration gear would consume about 50% less energy.
- the safety gear overload test gives no information about how much the safety gear is actually decelerating.
- a measuring system for determining a characteristic value of a safety gear of a cable lift which comprises an optical distance measuring device for determining a distance of an elevator car to a fixed point, in particular a hoistway mine.
- WO 2012 1 19 889 A1 describes a test of a proper functioning of an elevator, in which both an optical distance measuring device for determining a distance of an elevator car or a counterweight to a fixed point is provided, and an acceleration sensor is included.
- the acceleration sensor is attached to the same object whose distance is measured by the distance measuring device, and is used to increase the accuracy of the optical distance measurement.
- DE 91 1 6 466 U1 a cable lift with a first and a second distance measuring device is known, which serve for detecting the position of the elevator car. There is no consideration for a safety gear.
- the object of the invention is therefore to propose a test method and a measuring system which, regardless of the design and the mass ratios of the cable lift, results in the same characteristic values K of safety gear to be tested.
- a simpler, cheaper and more reliable test can be carried out without the additional load of additional weights.
- a further object of the present invention is to propose a system and a method with which the effectiveness of the catch test can be determined in an unloaded elevator car, so that a test of the safety gear is gentler, faster and cheaper to carry out.
- the measuring system for determining a characteristic value K of a safety gear of a cable lift comprises at least one distance measuring device for determining a distance s of an elevator car and / or a counterweight to a fixed point, in particular an elevator shaft excavation.
- the system further comprises a second distance measuring device and / or an acceleration sensor, a relative position detection device for detecting a relative position change As between the elevator car and counterweight at the conclusion of a travel of the elevator car by braking action of the safety gear, and an analysis device for determining at least one characteristic value K of the safety gear, prefers a catch energy E Fa n g , at standstill reached the elevator car and the counterweight based on the course of the relative position change As between the elevator car and counterweight.
- the measuring system comprises a distance measuring device for determining a distance s of an elevator car and / or a counterweight to a fixed point, so that the kinematic behavior of the elevator car, ie position, speed and acceleration of the elevator car during the safety test can be detected.
- a distance measuring device picks up the position, acceleration and speed of the counterweight during the safety test.
- the second distance measuring device or an acceleration sensor are provided to determine the kinematic behavior of the counterweight or the elevator car, wherein a relative position means can determine a relative position change As between elevator car and counterweight at the conclusion of the ride of the elevator car under the action of the braking device. This allows the relative position change of counterweight to the elevator car to be quantified during the course of the catching test.
- An analysis device determines a characteristic value K, in particular the catch energy E Fa n g , which is reached by the safety gear as soon as the elevator car and counterweight come to a standstill after completion of the test drive, based on this relative position change As between the elevator car and the counterweight.
- a measuring system which reaches in operation at an overspeed of the cabin ride, so that the counterweight by the influence of an increased catch delay aFang> 1 g in the short term loses rope tension and jumps up.
- the height of the counterweight's upward speed provides a measure of the catching delay in order to determine, based on the catching delay, the energy to be consumed for a given speed of the elevator car, which is picked up by the safety gear.
- the measuring system can be used without flow of the counterweight determine a check of the functioning of the safety gear, which does not depend on the design of the lift.
- the distance measuring device can be designed as desired, and for example take position data from an elevator control.
- the distance measuring device can be designed as or include a distance measuring device based on an acceleration sensor or a camera, which can detect a change in distance from the fixed point, in particular the elevator shaft mine chamber, or a distance measurement of an optical distance measuring device on the basis of an acceleration measurement or image data recognition can improve.
- a distance measuring device can be provided on the basis of an acceleration measurement by means of acceleration sensors or on the basis of a camera image with subsequent image data or video data analysis, so that recorded acceleration values, which can reflect the position of an elevator car in two integrated fashion, or an image A / ideo Schemeteil position determination Cab be used.
- the distance measuring device may be an optical distance measuring device, for example a distance measuring device already known from EP 2 221 268 A1, which is arranged at the fixed point, in particular in the hoistway pit space or at the elevator car, and which emits an optical measuring beam which is reflected on a preferably removably attachable optical reflector on a lower or upper side of the elevator car and / or the counterweight, wherein preferably the optical distance measuring device adjusting means for preferably self-aligning alignment of the optical measuring beam to the reflector surrounds.
- an optical distance measuring device a non-contact determination of the position, the speed and the acceleration of the elevator car or the counterweight can be made.
- the optical distance measuring device can be housed, for example, in a portable measuring device that can be temporarily arranged in the hoistway pit or on the roof of the elevator car, so that it can be easily transported for measurement purposes and attached by a single person. The creation of heavy weights and the associated logistical effort are not necessary.
- the system may comprise an acceleration sensor arranged on the counterweight, for example magnetically attachable sensor, and the distance measuring device may be set up be to measure the distance s between the elevator car and the fixed point, wherein the relative position detecting means is arranged based on the course of the distance s of the elevator car relative to the fixed point and an acceleration value a G o of the counterweight arranged acceleration sensor to determine the relative position change As.
- the position, speed and acceleration of the elevator car can be recorded by a distance measuring device, wherein an acceleration sensor SGG is arranged on the counterweight, and based on the acceleration values that occur at the counterweight, the relative position change As together with the analysis of the distance s between the elevator car and fixed point are used to determine the characteristic of the safety gear.
- An acceleration sensor can be easily attached to a counterweight and, for example, can be magnetically attached, and reliably record the data in the rough conditions in the elevator shaft.
- a gyrometer and / or an acceleration sensor can be arranged on the elevator car, which can determine a tilting of the elevator car, and the analysis device can be set up to determine an uneven braking action of the safety gear on the basis of the determined tilting.
- a gyrometer or another acceleration sensor can detect the vertical acceleration of the elevator car directly on the one hand, and also detect a horizontal tilting of the elevator car in the elevator shaft through a two or three-axis determination, thus making it possible to detect uneven action of the safety gear.
- the acceleration sensor and / or the gyrometer and the distance measuring device may comprise an internal data memory for temporal measured value recording, wherein the analysis device is set up to determine the characteristic value K after completion of a measuring process, a time assignment of the measured values of acceleration sensor and / or gyrometer and Distance measuring device to perform by cross-correlation.
- the recorded data must be synchronized with one another in terms of time.
- the data from the sensors will be merged only later and evaluated after completion of the measurement data collection.
- each sensor usually has an independent and different timer - advantageously the time bases adapted to each other, for example by means of a least-square FITs, in particular a non-linear least-square FITs related to each other to improve the accuracy of the measurement result.
- the start and end points of the time base are assigned to one another, and the other intermediate time values are transmitted according to their scale position to a uniform time scale.
- Y measured values on different X-axes-in this case time scales- can be reproduced with high precision to one another by a single physical process-in this case, the catching process of an elevator-independently of one another working sensors with high precision.
- the cross-correlation function enables the assignment of signal values of different sensors to one another, provided that the signals are subject to a common influence, here for example the influence of the braking effect, which influence the elevator car and counterweight in the same way.
- acceleration values of the counterweight can be correlated in time with acceleration values of the elevator car, even if both are recorded with different and independent time bases in order to assign the two sensor values to one another.
- an asynchronous time recording of acceleration values of the counterweight and position or acceleration values of the elevator car can be made, which can subsequently be connected to one another in the analysis device by cross-correlation.
- the acceleration sensor and / or the gyrometer can be temporarily connected to the analysis device via a contact unit for data exchange, wherein the analysis device is preferably included in the distance measuring device designed as a transportable device.
- the analysis device is preferably included in the distance measuring device designed as a transportable device.
- a contact unit such as a USB port, connectors, Bluetooth or other temporarily connectable Contact connections for data exchange are connectable.
- the analysis device may be located in a portable device in which the distance measuring device is installed, so that in the portable distance measuring device device, the overall analysis can be performed.
- data transmission between the acceleration sensor and / or the gyrometer and the distance measuring device can take place wirelessly, in particular by radio transmission via radio antennas.
- radio transmission for example, on the basis of a single time scale synchronous time during the execution of the Fang phenomenon or based on multiple time scales and a subsequent correlation step contactless data exchange takes place, so that acceleration and position data based on the same time scale.
- the data exchange can expediently take place via a radio transmission, for example via WLAN, NFC, Bluetooth or the like.
- At least one, in particular a plurality of force measuring devices can be included, which are set up to measure a weight force m F K of the elevator car and / or a weight force m G G of the counterweight, and those with the analysis device for determining the characteristic value "of the catch device are connected.
- the characteristic value K in particular of the fielding force Fa e n g is knowledge of at least the mass se of the elevator car m F K but also the counterweight m G G advantageous. To determine these masses, these can either be entered manually or measured directly.
- the invention proposes a method for characterizing a safety gear of a cable lift, which can preferably be carried out using a system according to one of the aforementioned system claims. For this purpose is
- a catching force F Fa n g of the safety gear at nominal speed v nenn a downward travel of an unloaded elevator car with curb weight m F K determined, with a braking deceleration aFangjeer> 1 g can be achieved;
- a fourth step (S4) an assessment is made leads, whether the recorded Relativpositions selectedung As satisfies a reaching the predetermined test load of the cable lift, and the desired characteristic value is determined.
- a first step the method described above determines a catching force or a catching delay of the safety gear during a downward travel of an unloaded elevator car with the rated speed and empty weight m F K. If the braking deceleration aFangjeer is> 1 g, then the influence of the counterweight is none Roller, because this flies upwards due to the inertia and exerts no influence during the braking process. Depending on the determined catch force or the braking deceleration, a further test speed i test can be determined in a second step in order to achieve a predetermined test load or predetermined load energy of the safety gear.
- a test drive is carried out with this test speed i test in order to expose this safety energy or test load to the safety gear.
- a relative position change As between high-flying counterweight and the elevator car is determined in order to verify that the desired load is reached or the acceleration forces and braking energies are achieved and thus the safety gear and the other elevator components fulfill the preset characteristic value ,
- the maximum catch force or the braking deceleration of the safety gear is determined. Based on these values, a test braking energy that the safety gear and the entire system has to absorb can be determined by determining a test speed i tes t. In a further ride with this test speed i test all relevant components of the elevator are subjected to these energies, so that a reliable test of the safety gear can be performed.
- the system can be operated without additional loads and only by determining the relative position between the elevator car and the be carried out.
- the basic requirement is that the safety gear allows braking delays of aFang> 1 g, so that the counterweight is irrelevant, and this is ensured by observing the relative position change.
- the system can be checked in a short time with a minimum of hardware and only by a single person.
- the relative position change As from the elevator car to the counterweight can be determined by correlating measured values of an optical distance device, which measures a distance s of the elevator car from a fixed point, and a second distance measuring device, which establishes a distance between a fixed point and the counterweight acceleration sensor arranged on the counterweight can be determined, the measured values of the movement of the elevator car and counterweight preferably being temporally associated with one another in a post-processing step by means of cross-correlation.
- the combination of the time-based measurements of the kinematic behavior of the elevator car and counterweight can be processed by means of cross-correlation in a post-processing step, so that no real-time data comparison between the various sensors is necessary.
- the optical distance measuring device alternatively or additionally to determining the relative position change
- a distance measuring device used an acceleration sensor or an optical camera become.
- the data of the Acceleration sensors can at least, as proposed in WO 2012 1 19889 A, be used to determine or improve the accuracy of the position determination of the optical distance measuring device.
- a change in the position of the elevator car or of the counterweight can be determined from the acceleration values or video and / or image data of the camera by means of an image data processing method.
- the acceleration sensor or the camera are mounted on the car and / or on the counterweight and by a position change, eg by two times integration of the acceleration value or an image comparison / video comparison with respect to a reference point, a position data change can be determined.
- the measuring device used for this purpose may be a smartphone, tablet PC or the like, which already has such sensors.
- the collected data can be evaluated in the meter or sent to a cloud or an external meter for analysis, archiving.
- the distance measuring device or the analysis device may include a database of already determined measured values of the catching force or the catching energy at the same speeds in order to indicate an aging process or a wear.
- At least one distance s between the elevator car and / or the counterweight and a fixed reference point, in particular the elevator shaft mine chamber can be determined by means of an optical distance measuring device to determine the relative position change As. Is the distance measuring device not based on a mechanical displacement sensor but on an optical scanning of the distance, Thus, the kinematic behavior of the elevator car and / or the counterweight can be detected with high accuracy and with little effort.
- the measuring process can be carried out quickly and temporarily set up or dismantled without major effort of the measuring apparatus. Thus, the measuring method can be performed quickly and easily.
- At least one vertical acceleration component 3FK of the elevator car and / or SGG of the counterweight can be detected and evaluated by an acceleration sensor to determine the relative position change As.
- the relative position change As is determined as a function of at least one vertical acceleration component which is detected at the elevator car or at the counterweight.
- a rotational or twisting movement of the elevator car along the guide rail can be detected by means of a gyrometer or acceleration sensor in order to determine an uneven effect of the safety gear.
- an acceleration sensor can be designed as a two- or three-axis sensor which detects, for example, a vertical acceleration component and detects one or two components lying in a horizontal plane in parallel, which provide information as to whether or not two or more safety gears uniformly decelerate the elevator car.
- the uniform and non-uniform effect of the safety gear can be detected and, for example, an uneven wear of the various safety gear can be determined.
- a detected vertical acceleration component of the elevator car can be used, the accuracy of a measuring device to improve certain distance.
- At least one force measuring device preferably at least one load cell, can be provided by discharging the elevator car and / or the counterweight on a buffer measures the weight.
- the masses in particular the elevator car m FK and the counterweight m GG . These can be entered manually, for example, since they are already known during the installation of the elevator system.
- An accurate determination of the weights which can be detected independently of preliminary information can be carried out by a force measuring device, preferably one or more load cells, which are placed on the buffers of the elevator system in the shaft pit, for example, whereby the elevator car and / or the counterweight can be placed on the load cells to determine their masses.
- a force measuring device preferably one or more load cells, which are placed on the buffers of the elevator system in the shaft pit, for example, whereby the elevator car and / or the counterweight can be placed on the load cells to determine their masses.
- a load scale of the cable elevator is calibrated, whereby by increasing loading of the elevator car and recording the Weight of the elevator car by the force measuring device and the load scale calibration of the load scale can be made.
- cable lifts have load scales that monitor a loading state of the elevator car and can make a warning signal or a deactivation of the elevator system in the event of an overload.
- a Calibrating load scales it was previously necessary to load at least two or more known weights in the elevator car to compare the known weight with the display of the load scale in order to calibrate the load scale.
- the method can also be used to perform a calibration of the load scale, this one or more weight measuring steps in the process are feasible.
- the method is suitable for determining a characteristic value of a safety gear. Furthermore, it may be possible in a further method step, when driving with an unloaded elevator car, to determine a characteristic value of a service brake by analyzing the course of the distance s between the elevator car and a fixed point.
- the service brake can be activated and its deceleration can be checked by measuring the distance by means of the distance measuring device.
- the effectiveness of the service brake can be determined and, for example, in the case of wear or due to aging, an indication of the condition of the service brake can be output.
- the method can be used not only to determine a characteristic for the safety gear, but also for the verification of a load scale or the state of the service brake.
- an easily usable and quickly installable measuring system and measuring method can be performed in order to be able to check in particular safety-relevant parameters of a cable lift system.
- FIG. 1 is a schematic representation of a cable lift 100 with physical characterization of the masses and accelerations to illustrate the physical conditions underlying the measuring method;
- FIG. 2 schematically shows another cable winding system 100 that serves to illustrate the principle underlying the measuring method;
- FIG. 1 is a schematic representation of a cable lift 100 with physical characterization of the masses and accelerations to illustrate the physical conditions underlying the measuring method;
- FIG. 2 schematically shows another cable winding system 100 that serves to illustrate the principle underlying the measuring method;
- FIG. 1 is a schematic representation of a cable lift 100 with physical characterization of the masses and accelerations to illustrate the physical conditions underlying the measuring method;
- FIG. 2 schematically shows another cable winding system 100 that serves to illustrate the principle underlying the measuring method;
- FIG. 1 is a schematic representation of a cable lift 100 with physical characterization of the masses and accelerations to illustrate the physical conditions underlying the measuring method;
- FIG. 2 schematically shows another cable winding system 100 that serves to illustrate the principle underlying the measuring method;
- 3 shows the representation of recorded trapped energies of braking devices with different deceleration values
- 4 shows a first embodiment of a measuring system according to the invention
- FIG. 5 shows schematically a block diagram of an embodiment of an inventive measuring system
- Fig. 6 shows another embodiment of an inventive
- FIG. 7 shows schematically a further embodiment of a measuring system according to the invention.
- Fig. 8 shows schematically an embodiment of an inventive
- a cable elevator system 100 is shown schematically, in which an elevator car 18 are connected via a cable 14 with a counterweight 1 6.
- the cable 14 is guided over a traction sheave 12, which is driven by a drive motor, not shown, to make an up and down movement of the elevator car 18.
- a schematically illustrated elevator load 20 is arranged in the elevator car 18.
- the elevator car 18 has a weight m FK , and the elevator load 20 located therein has an additional weight m L.
- These weights are guided via the cable 14 to the counterweight 16 so that the mass has m G G.
- the total mass of the system is carried by the traction sheave 12.
- the mass of the counterweight m GG corresponds to the value of the mass m F i ⁇ of the elevator plus about 50% of the rated load that is to transport the elevator car, and thus compensates for an average loading of the elevator car.
- the total force of the elevator car 18 with mass 20 thus results with (m F k + m L ) * (g + a).
- the counterweight with the weight force m G G * g acts downward and the counter force m G G * a upward.
- FIG. 1 a more realistic illustration of an elevator system 100 is shown, in which a safety gear 266, comprising two safety brakes 26a, 26b, the elevator car 18, which is guided along an elevator car guide 22 by means of guide rollers 24a, 24b, in an emergency can slow down. If the braking deceleration aFang, which can be exerted by the safety gear 26a, 26b, is greater than the gravitational acceleration g, then in the event of gripping the safety gear 26, the counterweight 16 would be thrown upwards and move higher by a distance As than in the case of taut rope 14 would be possible.
- the elevator car 18 is braked by the safety gear 26 without the influence of the counterweight 16 playing a role. Since the elevator car 18 is delayed with significantly more than the acceleration due to gravity a fa g> 1 g, the counterweight 16 is in free parabolic flight with an initial speed in the upward direction.
- the altitude can be determined.
- the flying height A s of the counterweight results when the elevator car 18 is traveling at 140% of a rated speed m / s with:
- FIG. 4 shows a first exemplary embodiment of a measuring device 10 according to the invention.
- the distance s in FIG. 4 is determined by an optical measuring beam 48 of an optical distance measuring device 30, which is arranged in the pit shaft space 28 as a fixed point 58.
- the optical measuring beam 48 frequency-pulsed laser beam and is at an optical reflector 38 which is mounted on the underside of the elevator car 18, reflected.
- the distance measuring device measures its transit times or phase position so that precise distance information and thus also speed and also acceleration information as a time derivative of the distance values of the elevator car 18 are obtained. be true.
- adjustment means 40 are attached to the distance measuring device 56 in order to be able to align the measuring device with respect to the reflector 38.
- an accelerometer sensor 32 is arranged, which can transmit acceleration values measured in real time to the distance measuring device 56 by means of a radio antenna 34.
- This also has a radio antenna 34 for receiving the acceleration values.
- the distance measuring device comprises an analysis device which determines a relative position of the counterweight to the elevator car by means of the acceleration values of the counterweight 1 6 and the distance s of the elevator car 1 8 determined by the measuring beam 48, and can determine braking deceleration and the catch energy of the safety gear 26.
- Fig. 5 is a block diagram of an embodiment of a measuring device 10 is shown schematically.
- This comprises a distance measuring device 56, which is designed as an optical distance measuring device 30 and which can determine the distance to an elevator car 1 8 or to a counterweight 1 6 from a fixed point 58, for example mine chamber 28 by means of an optical measuring beam 48.
- the distance measuring device 56 is connected to a relative position detection device 52, which can determine the relative position As between the counterweight 1 6 and the elevator car 1 8.
- Temporarily connectable thereto is via a contact device 68, for example a USB connection, an acceleration sensor 32, which can detect a vertical acceleration component of the counterweight 1 6 or the elevator car 18.
- the characteristic value K in particular the deceleration values of the safety gear 26 or the braking energy absorbed by the safety gear 26 can be determined by means of an analysis device 54.
- a force measuring device 46 can also be connected to the analysis device 54 via a USB connection 68 and a two-axis gyrometer 36 or a two-axis acceleration sensor also be temporarily connected via a contact device 68 for data synchronization and, if necessary, battery charging.
- the data values received by the sensors 32, 36 and 46 can be taken into account in a postprocessing method during the analysis, wherein time-based values, such as the values of the vertical acceleration sensor 32 or the position sensors 36 by means of cross-correlation with the distance values of the distance measuring device 56 temporally in Be reconciled in order to reproduce and analyze the transient movement.
- the masses of counterweight 1 6 or elevator car 18 can be determined, which are necessary for the determination of the braking energy of the safety gear 26. Twisting of the elevator car 18 during braking can be detected by the gyrome 36 in order to be able to identify uneven behavior of individual safety gears 26.
- two further embodiments of measuring devices are shown, which are basically similar to those of FIG. 4. In all cases, the distance of the elevator car 18 from the hoistway pit chamber 28 is determined as a fixed point 58 by means of an optical distance measuring device 56. It is further shown in FIG.
- the mass of the counterweight 16 can be determined by load cells 46a, and the mass of the elevator cage 18 can be determined for a set of load cells 46b arranged on buffers 42 for the resilient interception of the cabin 18 become.
- the masses of counterweight 1 6 and elevator car 18 can be determined exactly, so that a calculation of the characteristic value is possible even without knowledge of stored elevator data.
- the force measuring devices 46b can be used for example for calibrating a load scale 50 which is located in the elevator car 18.
- a load scale 50 which is located in the elevator car 18.
- the force measuring devices 46b can be used for example for calibrating a load scale 50 which is located in the elevator car 18.
- the force measuring devices 46b can be used for example for calibrating a load scale 50 which is located in the elevator car 18.
- the force measuring devices 46b can be used for example for calibrating a load scale 50 which is located in the elevator car 18.
- a measuring method may be performed in which the elevator car 18 is driven at different speeds onto the force measuring devices 46b of the buffer 42.
- the acceleration sensor 32 on the counterweight 16 has an online data memory and stores acceleration values with its own time base. After completion of the measuring process, an analysis of the dynamic behavior of the elevator system can be carried out by a cross-correlation of the acceleration values of the sensor 32 with distance values s recorded by the distance measuring devices 56.
- FIG. 7 shows a further variant of a measuring system 10 in which, instead of an acceleration value, two optically scanned distance values of elevator car 18 and counterweight 16 are recorded by means of two optical distance measuring devices 30.
- each of the underside of the elevator car 18 and the counterweight 1 6 reflector mirror 38 a, 38 b arranged, and two optical distance measuring devices 56 which are connected to each other via a data link, determine independently of one another the distances of counterweight 1 6 and elevator car 18 to the elevator shaft mine ,
- the position, speed and acceleration of the two components of the cable system 100 can be determined time-synchronously and the effectiveness of the safety gear 26, the brake 60 can be determined.
- FIG. 8 schematically shows the sequence of a measuring method for Mood of a kernel value
- No safety gear is shown in which in a first step S1 a catching force F Fa n g at a rated speed v Ne nn in a downward travel of an unloaded elevator car 1 8 with empty weight m F K is determined.
- the safety gear 26 is triggered by the Kochgeschwindig- or manually, with a braking deceleration aFan g _ieer> 1 g results, so that the counterweight 1 6 is in free parabolic flight upwards.
- a judgment is made whether the recorded relative position change As satisfies the predetermined test load of the elevator 100 and the characteristic value K is determined.
- the effectiveness of the service brake 60 in the case of an empty cab 1 8 in the upward direction can be assessed, such as with a rated load 20 loaded cab 18 in the downward direction.
- the state of the elevator buffers 42 can be determined, and a buffer characteristic can be created.
Abstract
Description
Claims
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HRP20221153TT HRP20221153T1 (hr) | 2014-02-05 | 2015-02-05 | Mjerni sustav i mjerna metoda za ispitivanje sigurnosne opreme dizala |
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DE102014101381.6A DE102014101381B4 (de) | 2014-02-05 | 2014-02-05 | Messsystem und Messverfahren zur Prüfung der Fangvorrichtung eines Aufzugs |
PCT/EP2015/052403 WO2015118064A1 (de) | 2014-02-05 | 2015-02-05 | Messsystem und messverfahren zur prüfung der fangvorrichtung eines aufzugs |
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EP3102523A1 true EP3102523A1 (de) | 2016-12-14 |
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EP15703560.1A Active EP3102523B1 (de) | 2014-02-05 | 2015-02-05 | Messsystem und messverfahren zur prüfung der fangvorrichtung eines aufzugs |
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EP (1) | EP3102523B1 (de) |
DE (1) | DE102014101381B4 (de) |
DK (1) | DK3102523T3 (de) |
ES (1) | ES2922181T3 (de) |
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CN108473272A (zh) * | 2015-12-28 | 2018-08-31 | 奥的斯电梯公司 | 电梯系统越程监控和调节 |
ES2870974T3 (es) | 2017-05-12 | 2021-10-28 | Otis Elevator Co | Sistemas y métodos de inspección de ascensor automático |
US10479648B2 (en) | 2017-05-12 | 2019-11-19 | Otis Elevator Company | Automatic elevator inspection systems and methods |
US10577222B2 (en) | 2017-05-12 | 2020-03-03 | Otis Elevator Company | Coded elevator inspection and positioning systems and methods |
US10577221B2 (en) | 2017-05-12 | 2020-03-03 | Otis Elevator Company | Imaging inspection systems and methods for elevator landing doors |
US11034545B2 (en) | 2018-03-26 | 2021-06-15 | Otis Elevator Company | Method and system for brake testing an elevator car |
CN108358010A (zh) * | 2018-04-04 | 2018-08-03 | 安徽中安检测中心有限公司 | 一种齿轮锥鼓型渐进式安全防坠器测试台 |
EP3814261B1 (de) * | 2018-06-27 | 2022-10-26 | Inventio Ag | Verfahren und system zur bestimmung der position einer aufzugkabine einer aufzuganlage |
CN108996347A (zh) * | 2018-09-23 | 2018-12-14 | 德州市产品检验检测研究院 | 一种测量电梯制停距离的测量装置及其测量方法 |
CN109650206B (zh) * | 2019-01-24 | 2024-04-05 | 大连特种设备检验检测研究院有限公司 | 一种电梯负载安全制动试验装置 |
CN111747252A (zh) * | 2019-03-26 | 2020-10-09 | 福州特设云服信息技术有限公司 | 一种电梯制动距离的检测方法 |
US11718504B2 (en) * | 2019-05-28 | 2023-08-08 | His Majesty The King In Right Of Canada, As Represented By The Minister Of Natural Resources | Inertial analyzer for vertical mining conveyances and method thereof |
CN111256546B (zh) * | 2020-01-23 | 2022-08-09 | 西安现代控制技术研究所 | 拖曳式二次起爆云爆弹放缆装置动态性能地面测试系统 |
KR102475080B1 (ko) | 2020-02-07 | 2022-12-08 | 미쓰비시 덴키 빌딩 솔루션즈 가부시키가이샤 | 승강기의 진단 장치 및 진단 해석 장치 |
DE102020203525A1 (de) | 2020-03-19 | 2021-09-23 | Thyssenkrupp Elevator Innovation And Operations Ag | Verfahren zum Überprüfen einer Fangvorrichtung für einen Aufzug |
CN112660955A (zh) * | 2020-12-28 | 2021-04-16 | 福建省特种设备检验研究院泉州分院 | 一种电梯125%载荷试验方法 |
CN114295402A (zh) * | 2021-12-31 | 2022-04-08 | 水利部水工金属结构质量检验测试中心 | 一种卷扬式启闭机试验系统 |
CN114538230B (zh) * | 2022-01-10 | 2024-01-02 | 衢州市特种设备检验中心 | 一种电梯125%载荷下行制动性能的检测方法及系统 |
CN114920118B (zh) * | 2022-05-31 | 2023-09-19 | 中国矿业大学 | 一种基于钢丝绳张力的立井箕斗卸载残留预警系统及识别方法 |
CN116773178B (zh) * | 2023-08-16 | 2024-01-05 | 中检集团公信安全科技有限公司 | 矿山防坠器制动距离测量装置及其测量方法 |
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DE9116466U1 (de) * | 1991-03-19 | 1992-12-03 | Base-Electronic Gmbh, 2000 Norderstedt, De | |
DE4217587C2 (de) * | 1992-05-21 | 1999-02-25 | Ernst Dipl Ing Kasten | Anlagen-Diagnoseverfahren |
DE4444466C1 (de) * | 1994-11-29 | 1996-04-11 | Mannesmann Ag | Verfahren und Einrichtung zum Prüfen der Bremsfunktion eines Hubwerks mit Motor und einer Bremse |
DE102009028596A1 (de) * | 2009-08-17 | 2011-03-03 | Dekra Testing & Inspection Gmbh | Verfahren und Anordnung zur Prüfung der ordnungsgemäßen Funktionsfähigkeit eines Aufzugs |
EP2221268B1 (de) | 2009-02-20 | 2014-04-16 | DEKRA e.V. | Verfahren und Anordnung zur Prüfung der ordnungsgemäßen Funktionsfähigkeit eines Aufzugs |
DE102011076241A1 (de) * | 2011-03-07 | 2012-09-13 | Dekra Industrial Gmbh | Verfahren und Vorrichtung zur Prüfung der ordnungsgemäßen Funktionsfähigkeit eines Aufzugs |
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2014
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- 2015-02-05 WO PCT/EP2015/052403 patent/WO2015118064A1/de active Application Filing
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DE102014101381B4 (de) | 2017-08-17 |
WO2015118064A1 (de) | 2015-08-13 |
DE102014101381A1 (de) | 2015-08-06 |
EP3102523B1 (de) | 2022-06-22 |
DK3102523T3 (en) | 2022-09-26 |
HRP20221153T1 (hr) | 2022-11-25 |
ES2922181T3 (es) | 2022-09-09 |
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