CN113526281A - Method and device for detecting sliding of gantry crane and belt and storage medium - Google Patents
Method and device for detecting sliding of gantry crane and belt and storage medium Download PDFInfo
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
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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
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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Abstract
The utility model relates to a detection method, equipment and storage medium of gantry crane and belt slippage, the method includes controlling the gantry crane to execute a first detection process, and acquiring first position data and second position data of the gantry crane in the first detection process; determining a first rotation distance of the gantry crane in the first detection process based on the first position data and the second position data; acquiring a first moving distance of the belt when the elevator car door completes a complete door opening or closing action in the first detection process; determining the sliding distance between the gantry crane and a belt according to the first rotating distance and the first moving distance; comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result; the device and the storage medium can realize the method. This openly exerts first detection moment through the door machine initiative and can improve the degree of accuracy that door machine and belt skidded the early warning.
Description
Technical Field
The application relates to the technical field of belt transmission, in particular to a method, equipment and a storage medium for detecting the slippage of a gantry crane and a belt.
Background
The belt transmission is the most common mechanical transmission, and is especially well-established in the door opening and closing of elevators. With the continuous development of the modern society, the elevator also becomes an auxiliary tool commonly existing in life. The elevator door machine is a mechanism responsible for opening and closing the elevator hall car door, and is used as a driving part for opening and closing the elevator door, so that the phenomenon of slipping between the door machine and a belt is easily caused by the conditions of abrasion, belt deformation, oil leakage and the like in the long-term use process. If the door motor and the belt slide seriously, the elevator car door and the hoistway door can not be automatically opened, and even passengers are trapped in the elevator and can not leave the elevator car.
In order to realize early warning for the slipping of an elevator door motor and a belt, the prior art usually adopts resistance between the door motor and the belt to judge whether the door motor and the belt slip or not. But the resistance between the measuring gantry crane and the belt has higher requirement on measuring precision and higher cost of required detecting elements. Meanwhile, when the resistance between the gantry crane and the belt is judged to be smaller than a normal value, the gantry crane and the belt are always in a state of high slipping degree, and the maintenance cannot be carried out in time.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus and a storage medium for detecting a belt slip of a door machine. The technical scheme of the disclosure includes:
a method for detecting the slippage of a door machine and a belt comprises the following steps:
controlling the door motor to execute a first detection process, and acquiring first position data and second position data of the door motor in the first detection process, wherein the first detection process comprises controlling the door motor to output a first detection torque to enable the elevator car door to complete a complete door opening or closing action, the first position data is the door motor position data when the elevator car door is in a completely closed door state in the first detection process, the second position data is the door motor position data when the elevator car door is in a completely opened door state in the first detection process, and the first detection torque is the rated torque when the door motor completes the door opening or closing action;
determining a first rotation distance of the gantry crane in the first detection process based on the first position data and the second position data;
acquiring a first moving distance of the belt when the elevator car door completes a complete door opening or closing action in the first detection process;
determining the sliding distance between the gantry crane and a belt according to the first rotating distance and the first moving distance;
and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
In one embodiment, obtaining a first movement distance of the belt when the elevator car door completes a complete door opening or closing motion in the first detection process comprises:
acquiring the rotating distance of the door machine in the process that the door machine and the belt finish a complete door opening or closing action for the first time, and taking the rotating distance as the first moving distance; or acquiring the displacement of the elevator car door in the process of completing a complete door opening or closing action as the first moving distance.
In one embodiment, comparing the slip distance with a preset threshold value, and determining a detection result of the gantry crane slipping and the belt slipping according to the comparison result comprises:
the preset threshold value comprises a first threshold value, and when the sliding distance is larger than or equal to the first threshold value, the detection result is that the gantry crane and the belt slide.
In one embodiment, the method further comprises the steps of:
triggering an early warning mode when the detection result is that the gantry crane and the belt slip;
the preset threshold value further comprises a second threshold value, and the second threshold value is smaller than the first threshold value; the early warning mode executes different alarms according to the comparison result, and when the slipping distance is greater than or equal to the first threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the second threshold and smaller than the first threshold, the early warning mode executes a reminding alarm.
The optimization effect that this embodiment brought is, can classify the judgement to the degree of skidding through setting up a plurality of threshold values to help follow-up execution to correspond the early warning mode of the degree of skidding, make the early warning mode more nimble, more laminate actual demand.
A method for detecting the slippage of a door machine and a belt comprises the following steps:
controlling the door motor to execute a second detection process, and acquiring third position data and fourth position data of the door motor in the second detection process, wherein the second detection process comprises controlling the door motor to output a second detection torque to enable the elevator car door to close in a fully closed state, maintaining the second detection torque for a set time, and cancelling the second detection torque after the set time is over, the third position data is the door motor position data when the elevator car door is in the fully closed state in the second detection process and the door motor does not output the second detection torque, the fourth position data is the door motor position data when the second detection torque is cancelled in the second detection process, and the second detection torque is greater than the rated torque of the door motor;
determining a second rotation distance of the gantry crane in the second detection process based on the third position data and the fourth position data;
determining the sliding distance between the gantry crane and the belt according to the second rotating distance;
and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
In one embodiment, the magnitude of the second detection torque is 110% -150% of the magnitude of the rated torque of the gantry crane.
In one embodiment, comparing the slip distance with a preset threshold value, and determining a detection result of the gantry crane slipping and the belt slipping according to the comparison result comprises:
the preset threshold value comprises a third threshold value, and when the sliding distance is larger than or equal to the third threshold value, the detection result is that the gantry crane and the belt slide.
In one embodiment, the method further comprises the steps of:
triggering an early warning mode when the detection result is that the gantry crane and the belt slip;
the preset threshold value further comprises a fourth threshold value, and the fourth threshold value is smaller than the third threshold value; the early warning mode executes different alarms according to the comparison result, and when the slipping distance is greater than or equal to the third threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the fourth threshold and smaller than the third threshold, the early warning mode executes a reminding alarm.
A detection apparatus for gantry crane and belt slippage, comprising:
the displacement detection element is arranged on an output shaft of an elevator door motor and is used for detecting position data of the door motor;
the controller is respectively electrically connected with the displacement detection element and the gantry crane and is used for receiving data detected by the displacement detection element, controlling the gantry crane to operate and triggering an early warning mode; the controller comprises a memory and a processor, the memory stores a computer program, and the processor realizes the steps of the method for detecting the sliding of the door machine and the belt or the steps of the method for detecting the sliding of the other door machine and the belt when executing the computer program.
A computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the steps of the above-described method of detecting a belt slip of a door operator or the steps of the above-described method of detecting a belt slip of another door operator.
The detection method, the detection equipment and the storage medium for the gantry crane and the belt slippage have the following beneficial effects:
the method has the advantages that the slipping distance between the door motor and the belt is obtained by measuring the position data of the door motor, the measuring steps are simplified, the measuring cost is reduced, the accuracy of the early warning of the slipping of the door motor and the belt is improved, the advance of the slipping of the elevator door motor and the belt is favorably improved, the trouble occurrence of elevator trapping is greatly reduced, and meanwhile, the elevator is more flexible to maintain; and the size through adjusting first/second detection moment can be suitable for the door machine and the belt of different specifications, and the application occasion is wide, strong adaptability.
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In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of steps of a method for detecting belt slip and a gantry crane according to an embodiment;
FIG. 2 is a flow diagram illustrating a first detection process provided in one embodiment;
FIG. 3 is a schematic illustration of another method of detecting door operator and belt slippage in one embodiment;
FIG. 4 is a flow diagram illustrating a second detection process provided in one embodiment;
fig. 5 is a schematic structural diagram of a gantry crane and belt slip detection apparatus provided in an embodiment.
Description of reference numerals: the method comprises the following steps of 1-a controller, 2-a door machine, 3-a belt, 4-a driven wheel, 5-a rotary encoder, 6-an elevator car door, 7-a door opening limit switch, 8-a door closing limit switch and 9-a car door closing switch.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded. For example, if the terms first, second, etc. are used to denote names, they do not denote any particular order.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
The following describes an embodiment of the present invention in a specific implementation scenario of a method for detecting a belt slip and a door motor of an elevator. Of course, the following description of the embodiments does not limit other scalable solutions obtained based on the embodiments of the present disclosure. The disclosed embodiments may be applied to elevators but do not preclude the possibility of being applied to other applications as well, such as motor and belt driven access control systems.
With reference to fig. 1, the invention provides a method for detecting the slipping of a gantry crane and a belt, which comprises the following steps:
step S10: and controlling the gantry crane to execute a first detection process, and acquiring first position data and second position data of the gantry crane in the first detection process.
The first detection process comprises controlling a door motor to output a first detection torque to enable the elevator car door to complete a complete door opening or closing action, and the first position data is door motor position data when the elevator car door is in a completely closed state in the first detection process. The second position data is door machine position data when the elevator car door is in a fully open state in the first detection process. The first detection torque is the rated torque when the door opening or closing action is finished by the door machine. Fig. 2 is a flowchart illustrating a first detection process according to the present embodiment.
An elevator door motor is often referred to as a mechanism responsible for opening and closing the doors of an elevator hall. In this embodiment, when the door machine receives the elevator control signal that opens, closes the door, the output shaft rotation of door machine drives the belt, and the belt changes the moment that the door machine produced into the power of a specific direction and drives the elevator sedan-chair door and remove, realizes the purpose of opening and shutting the elevator sedan-chair door. When the door machine and the belt operate healthily, the elevator car door is opened and closed smoothly and sensitively. When the door machine and the belt slip, the elevator car door is unsmooth to open or close even.
Step S20: a first rotation distance of the door machine in the first detection process is determined based on the first position data and the second position data.
The first rotational distance L is calculated by designating the first position data of step S10 as a and the second position data as B1，L1＝|A-B|。
Step S30: and acquiring a first moving distance of the belt when the elevator car door completes a complete door opening or closing action in the first detection process.
The distance that the belt travels during a complete door opening or closing motion of the elevator is usually constant, e.g., the first distance is constant and is designated L0。
Step S40: and determining the sliding distance between the gantry crane and the belt according to the first rotating distance and the first moving distance.
According to the first rotating distance L1And a first movement distance L0Calculating the slip distance delta L between the gantry crane and the belt in the first detection process, wherein the slip distance delta L is equal to | L1-L0|。
Step S50: and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
Comparing the sliding distance between the gantry crane and the belt obtained in the step S40 with a preset threshold, and judging whether the gantry crane and the belt slide according to the judgment result. The setting of the preset threshold value needs to refer to the specific specifications of an elevator door motor and a belt and consider the requirement on the early warning advance degree. According to the comparison result, the running state between the gantry crane and the belt, namely the normal state and the slipping state, can be known, and then the detection result of the slipping of the gantry crane and the belt is output.
In this embodiment, detect in daily operation through the elevator, as first testing process when opening the door or closing the door action with the daily complete execution of a machine, detect the distance of skidding of a machine and belt, the distance of skidding relatively and preset threshold size, obtain the running state between a machine and the belt according to the comparative result, and trigger the early warning mode when judging the skidding, can be timely carry out the early warning before door machine and belt because skid seriously breaks down, help in time reminding managers to change the belt and maintain the machine, reduce elevator trouble and take place.
In one embodiment, in the step S30, the first moving distance L may be measured as the rotating distance of the door operator during the first time of completing a complete door opening or closing action by the door operator and the belt0Or directly measuring the displacement of the elevator car door in the process of completing a complete door opening or closing action as the first moving distance L0. First moving distance L of one elevator0Is fixed, so only one measurement is needed and the data is saved, and the first moving distance L is obtained subsequently0Can be read directly.
In one embodiment, in step S50, the preset threshold includes a first threshold, and when the slip distance is greater than or equal to the first threshold, the detection result is that the door machine and the belt slip. In actual operation, the first threshold value is used as a critical value for judging whether the gantry crane and the belt skid or not, namely, when the skid distance is greater than or equal to the first threshold value, the gantry crane and the belt skid is judged, and when the skid distance is smaller than the first threshold value, the gantry crane and the belt do not skid.
In one embodiment, the method further comprises the steps of:
step S60: and when the detection result is that the gantry crane and the belt slip, triggering an early warning mode. In this embodiment, the early warning mode includes one or more combinations of sending an alarm file, a sound alarm, a light alarm, and a forced shutdown.
In the above embodiment, the preset threshold further includes a second threshold, and the second threshold is smaller than the first threshold; the early warning mode executes different alarms according to the comparison result, and when the slipping distance is larger than or equal to a first threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the second threshold and smaller than the first threshold, the early warning mode executes reminding alarm.
In the present embodiment, by comparing the slip distance with a plurality of preset thresholds, different alarms can be executed according to the comparison result. When the slipping distance is larger than or equal to the first threshold value, namely the slipping degree of the door motor and the belt is serious, the elevator car door fault occurs with high probability, and the elevator is at risk of being trapped by people, so that the elevator stops running in the early warning mode, the elevator stops running, people are rejected, an alarm mail or an audible and visual alarm is sent to remind an elevator manager to replace the belt as soon as possible, and the normal running of the elevator is recovered. When the slipping distance is larger than or equal to the second threshold and smaller than the first threshold, namely the gantry crane and the belt slightly slip, the early warning mode executes a warning alarm, sends an alarm mail and reminds an elevator manager to check the belt as soon as possible, and the situation that the slight slipping further develops into serious slipping is avoided.
In this embodiment, the value of presetting the threshold value is that the degree of allowing the gantry crane to skid obtains according to gantry crane and belt specification and in reality gantry crane and belt, and it can be one or more to preset the threshold value, can trigger different early warning modes to gantry crane and belt degree of skidding, and the application is nimble changeable.
With reference to fig. 3, the present embodiment provides another method for detecting a belt slip of a gantry crane, including:
step A10: and controlling the gantry crane to execute a second detection process, and acquiring third position data and fourth position data of the gantry crane in the second detection process.
The second detection process comprises controlling the door motor to output a second detection torque to enable the elevator car door to close the door in a completely closed state, maintaining the second detection torque for a set time, canceling the second detection torque after the set time is over, third position data is door motor position data of the elevator car door in the completely closed state and when the door motor does not output the second detection torque in the second detection process, fourth position data is door motor position data of the elevator car door when the second detection torque is cancelled in the second detection process, and the second detection torque is larger than the rated torque of the door motor. Fig. 4 is a flowchart illustrating a second detection process according to the present embodiment.
Step A20: and determining a second rotation distance of the door machine in a second detection process based on the third position data and the fourth position data.
Calculating a second rotation distance L by recording the third position data of the step A10 as C and the fourth position data as D2，L2＝|C-D|。
Step A30: and determining the sliding distance between the gantry crane and the belt according to the second rotating distance.
Because the elevator car door is always in a door closing state and does not displace in the second detection process, the moving distance of the belt in the second detection process is zero. Therefore, in the second detection process, the sliding distance between the gantry crane and the belt is the second rotating distance of the gantry crane, the sliding distance delta L between the gantry crane and the belt in the second detection process can be obtained and is the second rotating distance, and the delta L is equal to L2。
Step A40: and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
Wherein the set time can be selected from 1s to 5 s. This embodiment selects 3s, can realize under the prerequisite that does not harm a quick-witted, improves accuracy and the time degree of advance of the early warning that gantry crane skids with the belt.
In this embodiment, exert the distance of skidding that detection moment detected door machine and belt through initiative to the door machine, and the second detection moment who adopts is greater than the rated torque of door machine, the distance of comparatively skidding and predetermines the threshold value size, obtain the running state between door machine and the belt according to the comparative result, and trigger the early warning mode when judging skidding, can be more accurate carry out the early warning before door machine and belt because skid the serious trouble, in time remind managers to change the belt and maintain the door machine, reduce elevator trouble and take place.
Furthermore, the second detection torque is 110-150% of the rated torque of the door motor. In one embodiment, the second detection torque is 120% of the rated torque of the gantry crane, so that the accuracy and the time advance degree of the gantry crane and belt slippage early warning can be improved on the premise of not damaging the gantry crane.
In the step a40, the preset threshold includes a third threshold, and when the slip distance is greater than or equal to the third threshold, the detection result is that the door machine and the belt slip.
In one embodiment, the method further comprises the steps of:
and when the detection result is that the gantry crane and the belt slip, triggering an early warning mode. In this embodiment, the early warning mode includes one or more combinations of sending an alarm file, a sound alarm, a light alarm, and a forced shutdown.
In the above embodiment, the preset threshold further includes a fourth threshold, and the fourth threshold is smaller than the third threshold. The early warning mode executes different alarms according to the comparison result, and when the slipping distance is larger than or equal to a third threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the fourth threshold and smaller than the third threshold, the early warning mode executes reminding alarm.
It is understood that the embodiments of the method described above are described in a progressive manner, and the same/similar parts of the embodiments are referred to each other, and each embodiment focuses on differences from the other embodiments. Reference may be made to the description of other method embodiments for relevant points.
It should be noted that the first detection process can be triggered to be executed only when the elevator is in normal operation, for example, a complete door opening process detection can be executed in a fully closed state of the elevator door, or a complete door closing process detection can be executed in a fully opened state of the elevator door. And the second detection process needs to be performed when the elevator is empty and stationary. In practical applications, the first detection process may be performed in the daily work of the elevator as one of the works of daily maintenance. The second detection process may be set to automatically detect at a certain period. First testing process and second testing process can be used in same elevator occasion simultaneously, and first testing process is daily detecting, and the second testing process detects weekly, monthly or every quarter, can also detect the back that quick-witted and belt skidded at first testing process, and the second testing process is verified, and two testing processes can support each other.
Based on the above description of the embodiments of the method for detecting the sliding of the door operator and the belt, in one embodiment, as shown in fig. 5, there is also provided a device for detecting the sliding of the door operator and the belt, comprising: displacement detection element and controller 1, wherein:
the displacement detection element is arranged on the output shaft of the gantry crane 2 and used for detecting the position data of the gantry crane 2, the rotary encoder 5 is specifically adopted in the embodiment, and the rotary encoder 5 can convert mechanical quantities such as angular displacement and angular speed of the output shaft of the gantry crane 2 into corresponding electric pulses to be output in digital quantities. In this embodiment, door machine 2 passes through belt 3 and drives one from driving wheel 4 to change the moment that door machine 2 produced into the power of 6 moving directions of elevator sedan-chair door, the switch door action of elevator sedan-chair door 6 drives through belt 3.
And the controller 1 is respectively electrically connected with the displacement detection element and the gantry crane 2 and is used for receiving data detected by the displacement detection element, controlling the gantry crane to operate and triggering an early warning mode. The controller 1 includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method for detecting the sliding between the door operator and the belt according to the above embodiment when executing the computer program.
In this embodiment, the controller 1 receives the position data detected by the rotary encoder 5, and can calculate the rotation distance of the gantry crane 2 in the detection process. In practical application, the controller 1 may further be connected with a door opening limit switch 7 and a door closing limit switch 8, the door opening limit switch 7 and the door closing limit switch 8 are both disposed on a door head of the elevator car door 6, the door opening limit switch 7 is used for sending a position signal to the controller when the elevator car door 6 is at a fully opened position, and the door closing limit switch 8 is used for sending a position signal to the controller when the elevator car door 6 is at a fully closed position. The controller 1 is further connected with a car door closing switch 9, and the car door closing switch 9 is arranged on the elevator car door 6 and used for detecting the opening and closing state of the elevator car door 6 and feeding back the opening and closing state to the controller. In this embodiment, the opening/closing state of the elevator car door 6 is fed back to the controller 1 through the door opening limit switch 7, the door closing limit switch 8, and the car door closing switch 9, which is helpful for the controller 1 to implement the steps of the method for detecting the slipping of the door machine and the belt in the above embodiment when executing a computer program more accurately. The controller 1 can also be linked with an elevator control system of the elevator, and the functions of detecting the rotating distance of the door motor 2, the opening and closing states of the elevator car door 6 and the like are realized by the elevator control system of the elevator.
It should be noted that the above-mentioned description of the device according to the method embodiment may also include other implementation manners, and a specific implementation manner may refer to the description of the related method embodiment in the foregoing first detection process and/or the second detection process, which is not described herein again. All or part of the modules of the gantry crane and the belt slip detection device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of a method for detecting a belt slip and a door machine according to the above embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
In the present specification, the embodiments of the method, the apparatus, and the storage medium are described in a progressive manner, and the same and similar parts among the embodiments are mutually referred to or described with reference to the corresponding method embodiments, and each embodiment focuses on differences from other embodiments. Reference is made to the description of the method embodiments. The specific details can be obtained according to the descriptions of the foregoing method embodiments, and all of them should fall within the scope of the implementation protected by this application, and no further description is given to implementation schemes of the embodiments one by one.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for detecting the slippage of a door machine and a belt is characterized by comprising the following steps:
controlling the door motor to execute a first detection process, and acquiring first position data and second position data of the door motor in the first detection process, wherein the first detection process comprises controlling the door motor to output a first detection torque to enable the elevator car door to complete a complete door opening or closing action, the first position data is the door motor position data when the elevator car door is in a completely closed door state in the first detection process, the second position data is the door motor position data when the elevator car door is in a completely opened door state in the first detection process, and the first detection torque is the rated torque when the door motor completes the door opening or closing action;
determining a first rotation distance of the gantry crane in the first detection process based on the first position data and the second position data;
acquiring a first moving distance of the belt when the elevator car door completes a complete door opening or closing action in the first detection process;
determining the sliding distance between the gantry crane and a belt according to the first rotating distance and the first moving distance;
and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
2. The method of claim 1, wherein obtaining a first distance traveled by the belt during a complete opening or closing of an elevator door during the first detection comprises:
acquiring the rotating distance of the door machine in the process that the door machine and the belt finish a complete door opening or closing action for the first time, and taking the rotating distance as the first moving distance; or acquiring the displacement of the elevator car door in the process of completing a complete door opening or closing action as the first moving distance.
3. The method of claim 1, wherein comparing the slip distance with a preset threshold and determining a detection result of the gate machine and belt slip based on the comparison result comprises:
the preset threshold value comprises a first threshold value, and when the sliding distance is larger than or equal to the first threshold value, the detection result is that the gantry crane and the belt slide.
4. The method of claim 3, further comprising the steps of:
triggering an early warning mode when the detection result is that the gantry crane and the belt slip;
the preset threshold value further comprises a second threshold value, and the second threshold value is smaller than the first threshold value; the early warning mode executes different alarms according to the comparison result, and when the slipping distance is greater than or equal to the first threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the second threshold and smaller than the first threshold, the early warning mode executes a reminding alarm.
5. A method for detecting the slippage of a door machine and a belt is characterized by comprising the following steps:
controlling the door motor to execute a second detection process, and acquiring third position data and fourth position data of the door motor in the second detection process, wherein the second detection process comprises controlling the door motor to output a second detection torque to enable the elevator car door to close in a fully closed state, maintaining the second detection torque for a set time, and cancelling the second detection torque after the set time is over, the third position data is the door motor position data when the elevator car door is in the fully closed state in the second detection process and the door motor does not output the second detection torque, the fourth position data is the door motor position data when the second detection torque is cancelled in the second detection process, and the second detection torque is greater than the rated torque of the door motor;
determining a second rotation distance of the gantry crane in the second detection process based on the third position data and the fourth position data;
determining the sliding distance between the gantry crane and the belt according to the second rotating distance;
and comparing the slipping distance with a preset threshold value, and determining the detection result of the slipping of the gantry crane and the belt according to the comparison result.
6. The method according to claim 5, wherein the magnitude of the second detection torque is 110% to 150% of the magnitude of the rated torque of the door motor.
7. The method of claim 5 wherein comparing the slip distance to a preset threshold and determining a detection of belt slip by the gate machine based on the comparison comprises:
the preset threshold value comprises a third threshold value, and when the sliding distance is larger than or equal to the third threshold value, the detection result is that the gantry crane and the belt slide.
8. The method of claim 7, further comprising the steps of:
triggering an early warning mode when the detection result is that the gantry crane and the belt slip;
the preset threshold value further comprises a fourth threshold value, and the fourth threshold value is smaller than the third threshold value; the early warning mode executes different alarms according to the comparison result, and when the slipping distance is greater than or equal to the third threshold value, the early warning mode executes a reminding alarm and a stopping alarm; and when the slipping distance is greater than or equal to the fourth threshold and smaller than the third threshold, the early warning mode executes a reminding alarm.
9. The utility model provides a detection equipment that door machine and belt skidded which characterized in that includes:
the displacement detection element is arranged on an output shaft of an elevator door motor and is used for detecting position data of the door motor;
the controller is respectively electrically connected with the displacement detection element and the gantry crane and is used for receiving data detected by the displacement detection element, controlling the gantry crane to operate and triggering an early warning mode; the controller comprises a memory storing a computer program which when executed by the processor implements the steps of the method of any one of claims 1 to 4 or implements the steps of the method of any one of claims 5 to 8, and a processor.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of one of claims 1 to 4 or carries out the steps of the method of one of claims 5 to 8.
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| CN202110661161.5A CN113526281A (en) | 2021-06-15 | 2021-06-15 | Method and device for detecting sliding of gantry crane and belt and storage medium |
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Cited By (1)
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| CN115108428A (en) * | 2022-07-05 | 2022-09-27 | 苏州汇川控制技术有限公司 | Gantry crane belt slip detection method and device, electronic equipment and readable storage medium |
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Application publication date: 20211022 |