CN113336034A - Elevator load test method based on liquid flow accurate control - Google Patents
Elevator load test method based on liquid flow accurate control Download PDFInfo
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- CN113336034A CN113336034A CN202110626309.1A CN202110626309A CN113336034A CN 113336034 A CN113336034 A CN 113336034A CN 202110626309 A CN202110626309 A CN 202110626309A CN 113336034 A CN113336034 A CN 113336034A
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- 239000007788 liquid Substances 0.000 title claims abstract description 129
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 180
- 238000012360 testing method Methods 0.000 claims abstract description 44
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
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- 238000000605 extraction Methods 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an elevator load test method based on liquid flow accurate control, which comprises a detection vehicle capable of moving to the vicinity of a detection point, wherein detection equipment is arranged on the detection vehicle, the detection equipment comprises a liquid storage system, a liquid supply system, a control system and a detection weight, and other devices in the detection equipment are respectively connected and controlled through the control system. And after the liquid injection amount is set on the control system, starting the liquid supply system, and injecting liquid into the detection weight to test the load capacity of the elevator to be detected. And feeding a liquid signal back to the control system from the liquid supply system to monitor the liquid state and check the condition of the elevator to be detected, and operating the switch of the elevator to be detected to be closed to continue the test. After the test is finished, all liquid in the detection weight is pumped back to the liquid storage system, the detection vehicle is lightly moved back and then transported to the position near the next detection point, the detection efficiency of the elevator load test and the detection accuracy are improved, and the problems that the labor intensity of workers is high and the measurement data is inaccurate are solved.
Description
Technical Field
The invention relates to the technical field of elevator safety detection, in particular to an elevator load test method based on liquid flow accurate control.
Background
In elevator balance coefficient experiment and the 125% load experiment of elevator, use among the prior art needs according to the different requirements of elevator counter weight, artifical transport weight, after the test, the measurement personnel carry out the weight from the car again. The method wastes a large amount of manpower and time, and greatly reduces the working efficiency. Meanwhile, it is also common that the weight of the loaded weight is not consistent with the calculated weight due to human factors, so that the detected data is inaccurate.
In addition, in the prior art, the calculation of the experimental load is manually calculated by an experimenter, and the situation of rework caused by calculation errors of the operator occurs in actual operation.
The patent CN 110044650 a discloses a loading system and a loading method for an elevator load test, the loading system includes a support frame, a water tank, a weighing device and a water supply and return device, the support frame is provided with an elastic support member, and the water tank is arranged on the elastic support member; the weighing device is positioned between the support frame and the water tank; the top and the bottom of the water tank are respectively provided with a water inlet and a water outlet which are connected with a water supply and return device; after the water tank enters water, the water tank can be pressed on the weighing device, and the water tank is weighed through the weighing device. Although the invention can realize continuous loading and reduce the labor intensity of detection personnel, the weighing device is arranged in the elevator car and can influence the measurement accuracy along with the up-and-down operation of the elevator; the water tank is not easy to adjust according to different elevator specifications as a whole, the use mode is not flexible enough, and the bottom of the telescopic water bag is easy to deform when the telescopic water bag is fully loaded, so that the lift car is extruded, and the service life of the lift car is shortened.
Therefore, a method which can be flexibly adjusted and moved, reduces the labor intensity of operators and improves the detection efficiency and precision is needed to detect the elevator load.
Disclosure of Invention
The invention provides an elevator load test method based on liquid flow accurate control, and solves the problems of inaccurate measurement, inflexible detection equipment and high labor intensity of detection personnel in the traditional elevator load test.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an elevator load test method based on accurate control of liquid flow is characterized in that a detection vehicle capable of moving to the vicinity of a detection point is used for detecting at least one detection point of an elevator to be detected, detection equipment is arranged on the detection vehicle and comprises a liquid storage system and a liquid supply system which are arranged on the detection vehicle,
the detection weight is a container with a hard shell, and the bottom of the container is provided with a walking device for assisting in moving;
the liquid storage system is connected with the detection weight through a liquid supply system, the control system is respectively connected with a water path and a pipeline receiving and releasing unit in the liquid supply system through a wireless and/or wired transmission technology, and the control system is operated to release a pipeline of the pipeline receiving and releasing unit to the position near the lift car of the elevator to be detected; determining the number of actually required detection weights according to the specification and the load capacity of the elevator to be detected and the weight of the detection weights, and sequentially moving the detection weights into the car of the elevator to be detected for fixation;
the method comprises the following steps that a pipeline interface of a pipeline retraction unit is communicated with a liquid inlet at the bottom of one detection weight, a control system controls a water channel of a liquid supply system to be opened, a liquid storage system and the liquid supply system are matched to start a liquid injection process, and after the control system detects that the preset injection amount of the single detection weight is reached, the control system operates to close a valve of the water channel of the liquid supply system;
repeating the liquid injection operation until the required detection weights reach the set injection amount of a single detection weight, closing the water channel of the liquid supply system by using the control system, controlling the pipeline retraction unit to retract the pipeline, closing the car door of the elevator to be detected, and starting an elevator load test;
after an elevator load test is carried out at the detection point, the detection weight is moved out of the lift car with load by means of a traveling device at the bottom of the detection weight; according to the new elevator specification to be detected and the elevator load test progress, after the number and the injection amount of the detection weights placed in the elevator car to be detected are adjusted, the detection weights are fixed, and the operation of the elevator load test is continued;
the operation of carrying the detection weights with load for measurement is repeated until all the elevators to be detected at the detection point complete one elevator load test, then the detection weights are connected with a water path through a pipeline collecting and releasing unit of a liquid supply system, an operation control system starts a liquid pumping process, liquid in each detection weight is pumped back to a liquid storage system, the empty detection weights are conveniently installed back to a detection vehicle, the liquid supply system is stored, and the detection vehicle continues to move to the position near the next detection point after recovering the initial arrangement state.
The detection device and the detection weight can be compactly arranged on the detection vehicle which can move to the position near the detection point, the detection place can be conveniently replaced, and the liquid supply system and the control system are flexibly connected in various modes, so that the detection device is suitable for more working environments, and the cost of a detection unit is reduced. The weight of the detection weight is adjusted by adopting a liquid injection and extraction mode, so that the flexibility and the accuracy degree of the elevator load test process are greatly improved, heavy weights with fixed weights are omitted from being repeatedly carried by detection personnel, and the labor intensity is reduced; and liquid can be stored in the stock solution system of installing on the car, and recycle, whole process is comparatively environmental protection. Because the specifications of the elevators to be tested are different, and the load borne by the lift car in the elevator load test is changed according to a certain rule; a plurality of detection weights with determined capacity are adopted for testing, so that on one hand, the weight of the weights is more convenient to control in such a mode, and the experimental process is more flexible; on the other hand, the container with stable appearance is selected to contain liquid, so that the influence on the lift car is less, and the safety and the accuracy are ensured. Liquid is evenly injected into the detection weight according to the required load, so that the load distribution in the elevator car is balanced, and the safety of the inspection process and the damage to the elevator caused by detection are ensured. Can manage to find time again with detection weight after the detection, lightly put back again and examine on the car, compare the transport intensity of traditional approach and reduce greatly.
During detection, a double-circuit line power supply system is adopted to support commercial power input and mobile standby power input. An operator can select an input power supply according to the field working condition of the detection point so as to meet the requirements of different field conditions. The commercial power input can be 220VAC and 110VAC input, and the mobile standby power supply can be a diesel generator, a gasoline generator, a lithium battery generator or a lead-acid battery generator and the like. The standby power supply is arranged on the detection vehicle and is convenient to move together with other detection equipment. Therefore, the set of detection equipment can also be suitable for elevator detection of detection points in more regions, so that the detection equipment is convenient for detection personnel to learn and use, and the overall detection efficiency is improved.
And a sensor arranged in the liquid supply system is adopted to convert the liquid flow into a pulse electric signal and feed back the pulse electric signal to the control system so as to realize accurate control of the test load. Through the action of a liquid flow velocity sensor arranged in the liquid supply system, the control system can observe data such as the total amount of injected or discharged liquid, real-time flow velocity and the like, and can control the injection or discharge process of the liquid by operating the control system so as to be matched with the gradual completion of an elevator load test. Therefore, the weight change of the detection weight in the car can be controlled, the accuracy of the detection weight is improved, the result obtained by the elevator load test is convenient to collect and perform subsequent calculation and processing, and the reliability of the result of the elevator load test is also improved.
The control system can be a handheld controller, a computer, a mobile phone or a tablet personal computer, and the data collected by the control system is transmitted to an external printer by using the wireless communication module. An operator can operate and control the whole operation process through the end of each type of control system, and the wireless communication module continuously collects data generated in the process.
Preferably, a measuring module can be used when the method is realized, and the measuring module comprises a wireless transmission unit, a logic control unit and a switch closing unit which are connected with each other and control the detection weight to transmit the detection data to the control system in real time. Specifically, the power supply module provides power for the measuring module, the logic control unit and the switch closing unit are connected through the wireless transmission unit to transmit data, the nondestructive testing unit, namely the testing weight, in the elevator is monitored in real time through remote control, states of all parts are transmitted back to one end of a final control system in real time, and the logic control unit in the testing equipment is connected with the control system through an algorithm and real-time monitoring on pipeline states and flow states to realize accurate control on liquid input and output processes. The power supply system drives the power execution unit to supply power to the liquid flow of a water path in the liquid supply system and the pipeline length change of a water pipe, and can realize the accurate control of the driving speed through the logic control module and monitor and protect the driving state of the whole system.
During detection, a detection vehicle provided with a complete set of detection equipment is close to a detection point, a proper power supply mode is selected according to an actual detection point, and an equipment power line is connected; and the control system and the liquid supply system are connected, the empty-load detection weights with proper quantity are sequentially moved to a lift car of the elevator to be detected from the detection car according to the specification and the test requirement of the elevator, and the liquid supply system is started by the control system after the pipeline collecting and releasing unit in the liquid supply system is connected with the empty-load detection weights, so that the liquid in the liquid storage system is sequentially conveyed to each detection weight.
Specifically, the total amount of input liquid and the number of detection weights required can be set on a control system, and the liquid is continuously monitored by a liquid flow velocity sensor in a liquid supply system and uniformly injected into each detection weight placed in the lift car; and (3) temporarily closing the pipeline valve of the water channel after each detection weight is injected, and connecting the pipeline retraction unit with the next detection weight to continue injecting liquid. Repeating the operation until all the detection weights placed in the elevator car to be detected are filled with liquid; after the whole elevator load required by the test is reached, a signal is fed back to the control system, the waterway of the liquid supply system stops working, the pipeline retraction unit is controlled to be disconnected with the detection weight, and the car door is closed to start the elevator load test. After the elevator load test is completed by one elevator, if the detection point still needs to detect the elevator, the loaded detection weight is transferred to the next elevator car to be detected through the traveling device, the elevator load test is continued, and the operation of the loaded moving weight is repeated until all the elevators at the detection point complete the elevator load test.
After all elevator load tests are completed, the operation control system is connected with the water channel of the liquid supply system and the detection weights through the pipeline retraction unit again, liquid in each detection weight is pumped back to the liquid storage system in sequence, the no-load detection weights and the water pipes of the pipeline retraction unit are retracted into the detection vehicle, and the detection vehicle is moved to the next detection point.
Compared with the prior art, the invention has the substantial characteristics that:
1. the special detection vehicle is adopted to assemble a complete set of detection equipment, so that the occupied area during detection is saved, the whole vehicle can be conveniently moved to each detection point for continuous detection, the labor force for carrying the equipment is reduced, and the working efficiency is improved;
2. the liquid flow detected by the sensor is converted into an electric signal by using the control system, the weight of the detection weight, the switching state and the running state of the elevator to be detected and the like are regulated and controlled by the control system, the intelligentization and mechanization of the elevator load test are greatly improved by realizing remote operation in key steps, the time of the single elevator load test is shortened, the labor intensity is reduced, and the accuracy of the test result is ensured;
3. the mode that liquid is placed in the container that a plurality of hard shells were made is adopted as the detection weight that elevator load test used, and the velocity of flow, the flow that liquid pours into and flows out can be controlled through measuring modules such as liquid velocity of flow sensor among the check out test set accurately, and the quantity of detection weight can also be according to elevator specification and the nimble adjustment of test process of measuring, therefore commonality, the flexibility of this method is stronger, can be applicable to the elevator load test of multiple operating mode.
Drawings
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a flow chart of an elevator load test based on accurate control of liquid flow in the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
An elevator load test method based on liquid flow accurate control comprises a detection vehicle which can move to the position near a detection point, detection equipment is arranged on the detection vehicle, and the detection equipment comprises: the device comprises a liquid storage system, a handheld controller and a liquid supply system, wherein the liquid supply system comprises a water path and a pipe coiling device wound with a water pipe; one end of the water path is connected with the liquid storage system, and the other end of the water path is connected with a water pipe of the pipe coiling device; the detection vehicle is also provided with a detection weight which is convenient to load and unload, the detection weight is a hard hollow shell, and the bottom of the detection weight is provided with a walking device for assisting in moving.
And (4) parking the detection vehicle to a position close to the detection point according to actual conditions, and selecting a proper power supply system. And opening the car door, and selecting empty detection weights with corresponding quantity according to the specification of the elevator to be detected and putting the empty detection weights into the car of the elevator to be detected. And checking the relative position of the pipe outlet direction of the pipe coiling device and the elevator to be detected, adjusting the pipe outlet direction, operating the handheld controller and starting to arrange the water pipe.
When the self-circulation exhaust valve is used for the first time, a water pipe is inserted into a self-circulation interface of a liquid storage system, a water path valve of the liquid supply system is opened, and then a handheld controller is operated to perform self-circulation exhaust operation. And after the self-circulation exhaust is finished, closing a water way valve of the liquid supply system and disconnecting the water pipe. And operating the handheld controller to control the pipe rolling device to release the longer length of the water pipe, dragging the water pipe to the car of the elevator to be detected by pulling the pipe joint of the water pipe, and stopping releasing the pipe when the water pipe reaches the car of the elevator to be detected and can be connected to the joint of the detection weight.
And connecting a pipeline joint of the water pipe to a joint of the detection weight, and opening valves of the detection weight and the water channel to prepare for injecting liquid. Corresponding parameters are input into the handheld controller, and the liquid in the liquid storage system is injected into the detection weight by pressing the starting button. A frequency converter arranged on the detection vehicle is matched with the detection vehicle to adjust the flow rate of the liquid, the liquid supply system automatically detects the condition of the injected liquid, each detection weight injects the same amount of liquid, and a liquid flow rate sensor of the liquid supply system converts the acquired data into an electric signal and feeds the electric signal back to the handheld controller; and stopping liquid supply temporarily after the injection of one detection weight is finished, switching off the water way valve to the next detection weight to continue injecting liquid, and repeating the operation until all the detection weights placed into the elevator car to be detected are injected with the liquid completely, and stopping the injection after the total weight reaches the previously set parameters. And after the liquid injection is finished, operating a handheld controller to close the water path and a valve for detecting the weight. And placing the water collector at the lower part of the pipe joint of the water pipe, taking down the pipe joint, and closing the car door to perform a corresponding elevator load experiment.
In the measuring process, because the limit switch of the elevator is also provided with the measuring module, the electrical state and the switch closing information of the elevator can be measured and fed back in time. The measuring module connected with the elevator limit switch transmits the electrical state of the elevator and the information of the opening or closing of the switch in the detection process to the handheld controller, and an operator can know and judge the state of the elevator in the detection process only through the feedback information. After the elevator limit switch is disconnected by the mechanical action of the elevator car, the handheld controller can receive switch disconnection information in a remote wireless communication mode, and meanwhile, the detection device can be remotely controlled to realize the function of short-circuit of the elevator limit switch, so that the elevator can continue to run; when the switch is restored to the closed state from the open state after the elevator limit switch which is opened is separated from the position which enables the limit switch to mechanically act when the elevator car runs, the handheld controller can receive the switch closing information in a remote wireless communication mode.
After an elevator experiment is completed, directly moving the loaded detection weight to the car of the next elevator to be detected by means of a traveling device at the bottom of the detection weight; and connecting a pipeline joint of the water pipe to a joint of the detection weight, opening a corresponding water path valve, determining to inject liquid or extract liquid into the detection weight according to the specification and the experimental state of the next elevator to be detected, inputting corresponding parameters into the handheld controller again, and starting the liquid injection or extraction process. The liquid injection/extraction condition is detected by a handheld controller and a liquid flow velocity sensor in the liquid supply system, and the liquid flow is stopped after the liquid injection/extraction condition is finished. And closing valves on the water channel and the detection weight, putting the water collector on the lower part of the pipeline joint of the water channel, taking down the pipeline joint, and performing a corresponding elevator load experiment again.
After all experiments are completed, the pipeline joint is installed at the joint of the detection weight, and the valve is opened. And operating the handheld controller, and starting to draw the liquid in the detection weight back into the liquid storage system after inputting corresponding parameters. The hand-held controller and the detection weight are used for observing the liquid pumping condition in the liquid pumping process, the detection weight can be moved manually, and the detection weight is guaranteed to be pumped out. And stopping the whole system after the liquid pumping is finished. And closing the valves at all positions, placing the water collector at the lower part of the pipeline joint of the water channel, and taking down the pipeline joint. The handheld controller starts the pipe coiling device to perform pipe coiling operation, manual assistance is performed in the pipe coiling process, and the pipe can be prevented from being blocked in the pipe coiling process. After the pipe is collected, the handheld controller is operated to close a water path of the liquid supply system, the evacuated detection weights are taken out lightly and placed back into the detection vehicle, the carriage door is closed, and the detection vehicle is started to move to the next detection point.
The elevator load test is carried out by adopting the method based on the accurate control of the liquid flow, the liquid amount of the input detection weight is accurately measured by devices such as a sensor and a flowmeter, and the adjustment is flexible, accurate and convenient according to the elevator specification and the test process; the load weight and the elevator running state are remotely controlled in a program control mode, so that long-time field manual inspection is omitted; the whole set of detection equipment is integrated and installed on a specially-made transport vehicle, control operation can be performed through a remote transmission technology, occupied area during detection is saved, integral carrying of the equipment is facilitated, and detection places are changed. Compared with the prior inspection operation, the whole set of method has great technical progress, the intellectualization, the safety and the accuracy are obviously improved, the labor intensity of inspection personnel is reduced, the inspection time is shortened, and the method can be suitable for elevator detection under various working conditions.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. An elevator load test method based on liquid flow accurate control is characterized in that:
the detection vehicle which can move to the vicinity of the detection point is used for detecting at least one detection point of the elevator to be detected, the detection vehicle is provided with detection equipment which comprises a liquid storage system and a liquid supply system which are arranged on the detection vehicle,
the detection weight is a container with a hard shell, and the bottom of the container is provided with a walking device for assisting in moving;
the liquid storage system is connected with the detection weight through a liquid supply system, the control system is respectively connected with a water path and a pipeline receiving and releasing unit in the liquid supply system through a wireless and/or wired transmission technology, and the control system is operated to release a pipeline of the pipeline receiving and releasing unit to the position near the lift car of the elevator to be detected; determining the number of actually required detection weights according to the specification and the load capacity of the elevator to be detected and the weight of the detection weights, and sequentially moving the detection weights into the car of the elevator to be detected for fixation;
the method comprises the following steps that a pipeline interface of a pipeline retraction unit is communicated with a liquid inlet at the bottom of one detection weight, a control system controls a water channel of a liquid supply system to be opened, a liquid storage system and the liquid supply system are matched to start a liquid injection process, and after the control system detects that the preset injection amount of the single detection weight is reached, the control system operates to close a valve of the water channel of the liquid supply system;
repeating the liquid injection operation until the required detection weights reach the set injection amount of a single detection weight, closing the water channel of the liquid supply system by using the control system, controlling the pipeline retraction unit to retract the pipeline, closing the car door of the elevator to be detected, and starting an elevator load test;
after an elevator load test is carried out at the detection point, the detection weight is moved out of the lift car with load by means of a traveling device at the bottom of the detection weight; according to the new elevator specification to be detected and the elevator load test progress, after the number and the injection amount of the detection weights placed in the elevator car to be detected are adjusted, the detection weights are fixed, and the operation of the elevator load test is continued;
the operation of carrying the detection weights with load for measurement is repeated until all the elevators to be detected at the detection point complete one elevator load test, then the detection weights are connected with a water path through a pipeline collecting and releasing unit of a liquid supply system, an operation control system starts a liquid pumping process, liquid in each detection weight is pumped back to a liquid storage system, the empty detection weights are conveniently installed back to a detection vehicle, the liquid supply system is stored, and the detection vehicle continues to move to the position near the next detection point after recovering the initial arrangement state.
2. The elevator load test method based on liquid flow accurate control according to claim 1, characterized in that: during detection, a double-circuit line power supply system is adopted to support commercial power input and mobile standby power input.
3. The elevator load test method based on liquid flow accurate control according to claim 1, characterized in that: and a sensor arranged in the liquid supply system is adopted to convert the liquid flow into a pulse electric signal and feed back the pulse electric signal to the control system so as to realize accurate control of the test load.
4. The elevator load test method based on liquid flow accurate control according to claim 1, characterized in that: the control system can be a handheld controller, a computer, a mobile phone or a tablet computer.
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| CN202110626309.1A CN113336034A (en) | 2021-06-04 | 2021-06-04 | Elevator load test method based on liquid flow accurate control |
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| CN202110626309.1A CN113336034A (en) | 2021-06-04 | 2021-06-04 | Elevator load test method based on liquid flow accurate control |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050241887A1 (en) * | 2004-03-05 | 2005-11-03 | Inventio Ag | Method and device for automatic checking of the availability of an elevator installation |
| CN205257694U (en) * | 2015-12-14 | 2016-05-25 | 江苏大学 | Elevator load calibration equipment based on water tank |
| CN205575311U (en) * | 2016-05-06 | 2016-09-14 | 重庆迈高电梯有限公司 | Car elevator tows experimental counter weight device |
| CN109775497A (en) * | 2019-02-27 | 2019-05-21 | 南京市特种设备安全监督检验研究院 | A kind of elevator counterweight experimental rig and method |
| CN210339983U (en) * | 2019-06-12 | 2020-04-17 | 重庆市特种设备检测研究院 | Elevator load test device |
| CN210981815U (en) * | 2019-12-17 | 2020-07-10 | 莆田学院 | Elevator water simulation load device |
| CN211945786U (en) * | 2020-04-01 | 2020-11-17 | 胡斌 | Elevator inspection loading device |
| US20210122611A1 (en) * | 2018-08-21 | 2021-04-29 | Fujian Special Equipment Inspection And Research Institute | Elevator operation quality detecting system and detecting method |
-
2021
- 2021-06-04 CN CN202110626309.1A patent/CN113336034A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050241887A1 (en) * | 2004-03-05 | 2005-11-03 | Inventio Ag | Method and device for automatic checking of the availability of an elevator installation |
| CN205257694U (en) * | 2015-12-14 | 2016-05-25 | 江苏大学 | Elevator load calibration equipment based on water tank |
| CN205575311U (en) * | 2016-05-06 | 2016-09-14 | 重庆迈高电梯有限公司 | Car elevator tows experimental counter weight device |
| US20210122611A1 (en) * | 2018-08-21 | 2021-04-29 | Fujian Special Equipment Inspection And Research Institute | Elevator operation quality detecting system and detecting method |
| CN109775497A (en) * | 2019-02-27 | 2019-05-21 | 南京市特种设备安全监督检验研究院 | A kind of elevator counterweight experimental rig and method |
| CN210339983U (en) * | 2019-06-12 | 2020-04-17 | 重庆市特种设备检测研究院 | Elevator load test device |
| CN210981815U (en) * | 2019-12-17 | 2020-07-10 | 莆田学院 | Elevator water simulation load device |
| CN211945786U (en) * | 2020-04-01 | 2020-11-17 | 胡斌 | Elevator inspection loading device |
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