CN103332549B - The calibration equipment of elevator governor speed of action and method of calibration thereof - Google Patents

Abstract

The present invention provides the calibration equipment of a kind of elevator governor speed of action, this calibration equipment includes driving speed adjusting module, motion detection module one, motion detection module two, for the signal of real-time reception motion detection module one and motion detection module two and control to drive the data processing module of speed adjusting module, speed measuring module, and the display module being connected with data processing module; Motion detection module one and motion detection module two are connected with the mutual signal of data processing module respectively; Speed adjusting module is driven to be connected with data processing module signal. This calibration equipment solves Traditional Man functional check and causes that verification is inaccurate, verify the problem that error is big and checking precision is low. This calibration equipment is simple to operate, easy to carry simultaneously, can obtain verification report, be with a wide range of applications after verification. The present invention also provides for the method for calibration of this calibration equipment, and this method of calibration can draw check results quickly, reliably, exactly, and improves the verification quality of elevator governor.

Description

Calibration device and method for checking operating speed of elevator speed limiter

technical field

The invention relates to the technical field of elevator detection, and more specifically, to a detection device and a detection method for an elevator speed governor.

Background technique

As an important part of modern infrastructure supporting projects, elevators are closely related to national economic construction, especially the development of real estate and the improvement of people's quality of life. With the development of the economy, the number of elevators has increased rapidly. Although the relative accident rate is not high, the number of accidents still has an increasing trend. Especially, elevator stall accidents are very harmful and account for a large proportion of elevator accidents. Elevator speed limiter-safety gear linkage system is the most critical protection when the elevator stalls. Among them, the speed limiter is the safety component of the elevator. Its function is to monitor and control the speed of the car at any time and to issue protection instructions when the elevator is overspeed. . Therefore, whether the speed limiter can give correct protection instructions when an accident occurs is directly related to the safety of people's lives and property.

The speed limiter is one of the important components for the safety protection of elevator operation, and it has also been the focus of national compulsory inspection for a long time. Therefore, in order to improve the safety performance of the elevator, the inspection department requires that the speed limiter be checked at least once in the two-year service cycle. Since the speed limiter is generally installed on the top of the elevator machine room or the elevator shaft, it is also installed in the bottom pit, and the elevator speed limiter has various installation actions due to different manufacturers and different technical parameters. It is more complicated, so the difficulty of verifying the action speed of the speed limiter is greatly increased, and at the same time, higher requirements are put forward for the method and device to improve the verification accuracy.

However, the existing speed limiter action speed verification method is still mainly manual operation, and there is only subjective measurement of the performance of the two parameters of "electrical action speed" and "mechanical action speed" required by the regulations, which cannot be quickly , Reliable and accurate measurement of relevant data, resulting in various problems such as large error in the calibration result of the speed limiter action speed, low calibration accuracy, and low calibration efficiency. This verification has the problems of great difficulty and low precision, not only cannot reflect the verification situation of the speed limiter in time, but also cannot effectively guarantee the normal operation of the speed limiter of the elevator.

Although a calibrator for calibrating the speed of the elevator speed limiter has been developed in China, the current calibrating instrument for the speed limiter cannot meet the requirements of real calibration due to its shortcomings such as complicated operation, large volume, and poor applicability. testing needs. Moreover, the current inspection agency requires the elevator maintenance unit to issue a verification report, and many elevator maintenance units need to spend a lot of manpower to complete it, so that the quality of the speed limiter verification cannot be guaranteed.

With the rapid growth of the number of elevators, the above difficulties are bound to become more prominent, and more potential safety hazards cannot be eliminated in time. Therefore, according to the needs of the development of special inspection work and the difficulties encountered in actual operation, how to design a The elevator overspeed governor calibration device with high calibration accuracy, strong versatility, convenient and simple operation and its calibration method have become a major technical problem to be solved urgently in the elevator inspection industry.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art. The present invention provides an elevator overspeed governor action speed verification device that is easy to install, high in verification accuracy, convenient to carry and strong in versatility. The effectiveness of the inspection, and judge whether the action speed of the speed limiter meets the protection requirements of the corresponding elevator; the present invention also provides a method for checking the speed limiter through the above-mentioned elevator speed limiter verification device, so as to improve the speed of the elevator speed limiter. Calibration accuracy of movement speed.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a checking device for the action speed of an elevator overspeed governor, characterized in that it comprises:

A drive speed regulation module used to drive the elevator speed governor sheave to rotate;

Action detection module 1 for detecting the electrical action signal of the elevator speed limiter;

Action detection module 2 for detecting the mechanical action signal of the elevator speed limiter;

A data processing module for receiving signals from the motion detection module 1 and the motion detection module 2 in real time and controlling the drive speed regulation module;

A speed measurement module connected with the signal of the data processing module to measure the rotation speed of the elevator speed limiter sheave;

and a display module connected to the data processing module;

The first motion detection module and the second motion detection module are respectively connected to the data processing module by signals; the drive speed regulation module is connected to the data processing module by signals.

In the above scheme, the inspector can directly know the verification result of the elevator speed limiter on the display module through the verification device, which solves the problems of inaccurate verification, large verification error and low verification accuracy caused by traditional manual operation verification. question. At the same time, the calibration device is easy to operate and easy to carry, and a calibration report can be obtained after calibration. It is suitable for the calibration of elevator speed limiters in complex on-site environments, thereby improving the work efficiency of inspectors, and also conforms to relevant regulations. It meets the requirements of the elevator inspection regulations and has a wide range of application prospects.

The signal connection between the first motion detection module and the second motion detection module and the data processing module means that the first motion detection module and the second motion detection module are respectively connected with the data processing module through the wireless data transmission module to send and receive signals and data. The wireless communication mode of the present invention is a point-to-multipoint (system is point-to-two-point) communication mode using TDMA time division multiple access. The wireless transmission module of this communication mode is embedded with a high-speed single-chip microcomputer and a high-performance radio frequency chip, and has a highly integrated half-duplex micro-power data transmission function. It can correct and detect 24bits continuous burst errors at most. The transmission principle is that the receiving module sends out the synchronous address signal continuously according to the time cycle after the interrupt is generated, the sending module is in the receiving state, and gives a response signal after receiving the synchronous signal with the corresponding address information; the receiver enters the receiving state , the sender generates an interrupt after receiving the response signal, sends out the information to set the address, and the receiver receives the data.

Described motion detection module one is electrical motion detection module, and it is arranged on the electric switch of elevator speed limiter, and described electrical motion detection module comprises acceleration sensor one and A/D data converter one; Described motion detection module two is The mechanical action detection module is arranged on the rope clamping arm of the elevator speed governor, and the mechanical action detection module includes an acceleration sensor 2 and an A/D data converter 2 .

When the acceleration sensor 1 and the acceleration sensor 2 detect the electrical action or mechanical action of the speed limiter, an analog signal is generated, which is converted into a digital pulse signal after being processed by the A/D data converter 1 and the A/D data converter 2, and After judging that the action signal is correct, the address code is sent to the data processing module by means of wireless communication.

The electrical action detection module is fixed on the electrical switch of the elevator speed governor through a magnetic base; the mechanical action detection module is fixed on the rope clamping arm of the elevator speed governor through a magnetic base. The two detection modules are fixed on the parts of the elevator speed governor through the magnetic base, which can facilitate the installation and disassembly of the detection modules, thereby realizing the convenient and fast operation of the calibration device, and improving the work efficiency of the inspection personnel.

The drive speed regulation module includes a frequency conversion speed regulation module and a power drive module; the frequency conversion speed regulation module is connected to the data processing module signal; the power drive module is installed on the elevator speed governor sheave; the speed measurement module is installed on the on the drive shaft of the power drive module. According to the rated speed of the elevator speed limiter and the type of elevator safety gear, the present invention can set the required frequency when the speed limiter reaches the upper limit of the action through the frequency conversion speed regulation module, and set the driving module according to the installation environment of the speed limiter on site. The running direction makes the calibration device suitable for on-site calibration of different types of elevator speed governors.

The drive speed regulation module of the present invention can control the frequency conversion speed regulation module through the data processing module to generate sufficient rotation speed and torque for the rated speed of the elevator, so that the frequency conversion speed regulation module can quickly generate the set test rotation speed. The utility model realizes the change of the rotating speed of the power driving module through the control of the frequency conversion speed regulating module, and then can realize the control of the rotating speed of the power driving module.

The speed measurement module is installed on the drive shaft of the power drive module to measure the speed of the elevator speed limiter in real time. The speed sensor module is composed of a rotary encoder and a signal conversion circuit. The round wheel of the rotary encoder is directly driven by the power drive module, and the pulse is output through the signal conversion circuit, and the instantaneous speed of the power drive module is calculated through the pulse interval time.

The data processing module adopts wince operating system; the display module is an operable touch screen. During the verification process, inspectors can perform corresponding operations in real time through the touch screen. The core of the data processing module is a 32-bit high-performance embedded MCU, which integrates a variety of communication and input and output interfaces, and uses the embedded system wince6.0.

A verification method using the above-mentioned operating speed verification device of the elevator overspeed governor, characterized in that it includes the following steps:

The first step is to set the output frequency f of the drive speed control module to drive the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter; install the speed measurement module on the drive shaft of the power drive module in the drive speed control module, The speed measurement module transmits the measured real-time speed of the elevator speed limiter to the data processing module;

The second step is to set the electrical action detection module on the electrical switch of the elevator speed limiter, and set the mechanical action detection module on the rope clamp arm of the elevator speed limiter; detect the electrical action signal and mechanical action signal of the elevator speed limiter , and transmit the detected signal to the data processing module;

In the third step, the data processing module judges whether the detected electrical action signal and the mechanical action signal are received: (1) if the electrical action signal and the mechanical action signal are not received, then the elevator speed limiter check fails Alarm, and proceed to the fifth step; (2) If the electrical action signal or the mechanical action signal is not received, an alarm that the elevator speed limiter is unqualified is sent, and the electrical action speed v ₁ or the mechanical action speed v is obtained through the speed measurement module ₂ , and go to the fifth step; (3) receive the electrical action signal and the mechanical action signal, then go to the fourth step;

The fourth step is to obtain the electrical action speed v ₁ and the mechanical action speed v ₂ through the speed measurement module, and compare v ₁ and v ₂ : (1) if v ₁ > v ₂ , it will send out that the elevator speed limiter check fails alarm, and go to the fifth step; (2) v ₁ <1.15v ₀ or v ₂ <1.15v ₀ , then the elevator speed limiter check fails, and go to the fifth step. (3) If 1.15v ₀ ≤v ₁ ≤v ₂ , then the elevator speed limiter is qualified, and proceed to the fifth step; among them, v ₀ is the rated speed of the elevator speed limiter;

The fifth step is to output the verification report of the elevator speed limiter according to the verification result.

The above-mentioned verification method is to measure and verify the electrical action speed and mechanical action speed of the speed governor during the process of accelerating the elevator speed governor to the action upper limit speed v of the speed governor, and judge the action of the elevator speed governor. Whether the speed meets the inspection regulations. The verification method overcomes the problem that the manual measurement of the parameter performance of the elevator speed governor has subjective judgment, and the verification result cannot be obtained quickly, reliably and accurately.

More specifically, in the first step, the setting of the output frequency f of the drive speed control module refers to setting the drive speed control module by determining the rated speed v ₀ of the measured elevator speed governor and the type of elevator safety gear. Output frequency f. The output frequency f of the drive speed regulation module corresponding to the upper limit speed of the elevator speed governor of different types is different.

In the fourth step, the electrical action speed v1 refers to the speed _of the elevator speed limiter when the electrical action signal is received _; the mechanical action speed v2 refers to the speed of the elevator speed limiter when the mechanical action signal is received.

Said setting the output frequency f of the drive speed regulation module to drive the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter refers to that the power drive module is driven to rotate by the output frequency f of the frequency conversion speed regulation module, and the power drive module drives The speed limiter of the elevator accelerates to the action upper limit speed v of the speed limiter.

The principle of the verification method of the elevator overspeed governor operating speed of the present invention is such:

(1) According to GB7588-2003 "Safety Code for Elevator Manufacturing and Installation" or JG135-2000 "Regulations for Debris Elevators", calculate and set the frequency f corresponding to the upper limit speed of the elevator speed limiter that drives the speed control module, and drive The speed regulating module outputs the frequency f, and drives the speed limiter sheave to accelerate from rest to the action upper limit speed v. The speed of the drive speed regulation module is

${\mathrm{<span\; class="notranslate">\; no</span>}}_{\mathrm{<span\; class="notranslate">\; the\; s</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 60</span>}\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; the\; s</span>}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; P</span>}}$

Among them, P is the number of pole pairs, s is the speed of the asynchronous motor; then the speed of the drive speed control module is

${\mathrm{<span\; class="notranslate">\; v</span>}}_{\mathrm{<span\; class="notranslate">\; the\; s</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; \&pi;rn</span>}}_{\mathrm{<span\; class="notranslate">\; the\; s</span>}}}{\mathrm{<span\; class="notranslate">\; 3600</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; /</span>\mathrm{<span\; class="notranslate">\; the\; s</span>}<span\; class="notranslate">\; )</span>$

Wherein, r is the radius of the circular wheel of the power drive module. Since the upper limit speed v of the elevator speed limiter is the same as the speed v _s of the drive speed control module, the upper limit speed of the elevator speed limiter

(2) When the speed governor of the elevator accelerates to the upper limit speed v of the speed governor, the electrical action signal and the mechanical action signal of the speed governor are detected. The speed measurement module on the module drive shaft measures the speed of the elevator speed limiter when it receives the electrical action signal or the mechanical action signal, as the electrical action speed or the mechanical action speed, and then judges the two action speeds. If the two signals are not detected or one of the signals is detected, it can be judged that the verification result of the elevator speed governor is unqualified.

(3) The inspection of the elevator speed limiter is to judge whether the two action speeds of the elevator speed limiter comply with GB7588-2003 "Safety Code for Elevator Manufacturing and Installation" or JG135-2000 "Regulations for Debris Elevators". The "Safety Code for Elevator Manufacturing and Installation" stipulates that the action speed of the speed limiter that controls the safety gear device of the car should be equal to 115% of the rated speed v ₀ , but should be less than: 0.8m/s for instantaneous safety gear devices; (b) 1.00m/s for non-falling roller safety gear devices; (c) 1.50 for progressive safety gear devices with rated speed less than or equal to 1.00m/s m/s; (d) 1.25v ₀ +0.25/v ₀ for progressive safety gear devices with rated speed greater than 1.00m/s.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. The calibration device of the present invention solves the problems of inaccurate calibration, large calibration error and low calibration accuracy caused by traditional manual calibration. At the same time, the calibration device is easy to operate and easy to carry, and a calibration report can be obtained after calibration. It is suitable for the calibration of elevator speed limiters in complex on-site environments, thereby improving the work efficiency of inspectors, and also conforms to relevant regulations. It meets the requirements of the elevator inspection regulations and has a wide range of application prospects.

2. The verification device of the present invention verifies the action speed of the elevator speed governor, and the obtained verification result can reflect the situation of the elevator speed governor in time, and can effectively ensure the safe operation of the elevator equipment.

3. The method for calibrating the action speed of the elevator overspeed governor of the present invention overcomes the problem of subjective judgment of the parameter performance of the manual measurement of the elevator overspeed governor action speed, and can quickly, reliably and accurately obtain the verification results , and improve the calibration quality of the elevator speed limiter.

Description of drawings

Fig. 1 is the block diagram of the checking device of the action speed of the elevator overspeed governor of the present invention;

Fig. 2 is the flow chart of the verification method of elevator overspeed governor operating speed verification device of the present invention;

Among them, 1 is the drive speed control module, 2 is the electrical motion detection module, 3 is the mechanical motion detection module, 4 is the data processing module, 5 is the speed measurement module, 6 is the display module, 7 is the wireless data transmission module, 8 is the acceleration sensor 1. 9 is the A/D data converter 1, 10 is the acceleration sensor 2, 11 is the A/D data converter 2, 12 is the frequency conversion speed regulation module, 13 is the power drive module.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

This embodiment uses Samsung's S3C6410X (ARM11) embedded microprocessor as the data processing module and the APC220-43 module as an example to illustrate the following.

As shown in Figure 1, the module structure diagram of the elevator overspeed governor action speed verification device of the present invention, the verification device includes a driving speed regulation module 1 for driving the elevator overspeed governor sheave to rotate; for detecting the elevator overspeed governor The electrical action detection module 2 for the electrical action signal; the mechanical action detection module 3 for detecting the mechanical action signal of the elevator speed limiter; for receiving the signals of the electrical action detection module 2 and the mechanical action detection module 3 in real time and controlling the drive speed regulation module The data processing module 4 of 1; The speed measurement module 5 that is connected with the data processing module 4 signal, to measure the rotation speed of the elevator speed governor sheave; And the display module 6 that is connected with the data processing module 4. Among them, the data processing module 4 adopts wince operating system, and the display module 6 adopts an operable LCD touch screen, which is convenient for inspectors to perform corresponding operations in real time. As shown in Figure 1, the drive speed control module 1 is connected to the data processing module 4 with signals, and the electrical motion detection module 2 and the mechanical motion detection module 3 are respectively connected with the data processing module 4 through the wireless data transmission module 7 to send and receive signals and data. .

The electrical action detection module 2 of the verification device of the present invention is fixed on the electrical switch of the elevator speed governor through a magnetic base, and it includes an acceleration sensor-8 and an A/D data converter-9; the mechanical action detection module 3 is then passed through a magnetic base. It is fixed on the rope clamp arm of the elevator overspeed governor, and it includes an acceleration sensor two 10 and an A/D data converter two 11. The drive speed regulation module 1 includes a frequency conversion speed regulation module 12 and a power drive module 13, the frequency conversion speed regulation module 12 is connected with the data processing module 4 for signals, and the power drive module 13 is installed on the elevator speed governor sheave. The speed measurement module 5 is installed on the drive shaft of the power drive module 13 to measure the speed of the elevator speed governor in real time.

The flow chart of the verification method of the elevator speed limiter action speed verification device of the present invention is as shown in Figure 2, and comprises the following steps:

The first step is to set the output frequency f of the drive speed control module by determining the rated speed v ₀ of the measured elevator speed limiter and the type of elevator safety gear, so as to drive the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter The speed measurement module is installed on the drive shaft of the power drive module in the drive speed regulation module, and the speed measurement module transmits the real-time speed of the elevator speed limiter measured to the data processing module; wherein, v ₀ is the rated speed of the elevator speed limiter;

The second step is to set the electrical action detection module on the electrical switch of the elevator speed limiter, and set the mechanical action detection module on the rope clamp arm of the elevator speed limiter; detect the electrical action signal and mechanical action signal of the elevator speed limiter , and transmit the detected signal to the data processing module;

In the third step, the data processing module judges whether the detected electrical action signal and the mechanical action signal are received: (1) if the electrical action signal and the mechanical action signal are not received, then the elevator speed limiter check fails Alarm, and proceed to the fifth step; (2) If the electrical action signal or the mechanical action signal is not received, an alarm that the elevator speed limiter is unqualified is sent, and the electrical action speed v ₁ or the mechanical action speed v is obtained through the speed measurement module ₂ , and go to the fifth step; (3) receive the electrical action signal and the mechanical action signal, then go to the fourth step;

The fourth step is to obtain the electrical action speed v ₁ and the mechanical action speed v ₂ through the speed measurement module, and compare v ₁ and v ₂ : (1) if v ₁ > v ₂ , it will send out that the elevator speed limiter check fails alarm, and go to the fifth step; (2) v ₁ <1.15v ₀ or v ₂ <1.15v ₀ , then the elevator speed limiter check fails, and go to the fifth step. (3) If 1.15v ₀ ≤v ₁ ≤v ₂ , then the elevator overspeed governor is qualified, and proceed to the fifth step;

The fifth step is to output the verification report of the elevator speed limiter according to the verification result.

Wherein, in the fourth step, the electrical action speed v1 refers to the speed _of the elevator speed limiter when the electrical action signal is received _; the mechanical action speed v2 refers to the speed of the elevator speed limiter when the mechanical action signal is received. Set the output frequency f of the drive speed regulation module to drive the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter. The output frequency f of the frequency conversion speed regulation module drives the power drive module to rotate. The speed gear accelerates and rotates to the action upper limit speed v of the speed limiter.

The verification method of the present invention is to detect the electrical action signal and the mechanical action signal of the overspeed governor during the process of the elevator overspeed governor accelerating and rotating to the upper limit speed v of the overspeed governor, and if the two signals are detected, pass through the The speed measurement module installed on the drive shaft of the power drive module measures the speed of the elevator speed limiter when it receives the electrical action signal or the mechanical action signal, as the electrical action speed or the mechanical action speed, and then judges the two action speeds. If the two signals are not detected or one of the signals is detected, it can be judged that the verification result of the elevator speed governor is unqualified.

The inspection of the elevator speed limiter is to judge whether the two action speeds of the elevator speed limiter comply with GB7588-2003 "Safety Code for Elevator Manufacturing and Installation" or JG135-2000 "Regulations for Debris Elevators". The "Safety Code for Elevator Manufacturing and Installation" stipulates that the action speed of the speed limiter that controls the safety gear device of the car should be equal to 115% of the rated speed v ₀ , but should be less than: 0.8m/s for instantaneous safety gear devices; (b) 1.00m/s for non-falling roller safety gear devices; (c) 1.50 for progressive safety gear devices with rated speed less than or equal to 1.00m/s m/s; (d) 1.25v ₀ +0.25/v ₀ for progressive safety gear devices with rated speed greater than 1.00m/s.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (8)

1. A checking device for the speed of action of an elevator overspeed governor, characterized in that: comprising: A drive speed regulation module used to drive the elevator speed governor sheave to rotate; Action detection module 1 for detecting the electrical action signal of the elevator speed limiter; Action detection module 2 for detecting the mechanical action signal of the elevator speed limiter; A data processing module for receiving signals from the motion detection module 1 and the motion detection module 2 in real time and controlling the drive speed regulation module; A speed measurement module connected with the signal of the data processing module to measure the rotation speed of the elevator speed limiter sheave; and a display module connected to the data processing module; The first motion detection module and the second motion detection module are respectively connected to the data processing module by signals; the drive speed regulation module is connected to the data processing module by signals; Described motion detection module one is electrical motion detection module, and it is arranged on the electric switch of elevator speed limiter, and described electrical motion detection module comprises acceleration sensor one and A/D data converter one; Described motion detection module two is A mechanical action detection module, which is arranged on the rope clamp arm of the elevator overspeed governor, said mechanical action detection module includes an acceleration sensor two and an A/D data converter two; The drive speed regulation module includes a frequency conversion speed regulation module and a power drive module; the frequency conversion speed regulation module is connected to the data processing module signal; the power drive module is installed on the elevator speed governor sheave; the speed measurement module is installed on the on the drive shaft of the power drive module. 2. the verification device of elevator overspeed governor action speed according to claim 1, is characterized in that: described action detection module one and action detection module two are respectively connected with data processing module signal and refer to, action detection module one and The motion detection module 2 and the data processing module respectively send and receive signals and data through the wireless data transmission module. 3. The checking device for the operating speed of the elevator overspeed governor according to claim 1, characterized in that: the electrical action detection module is fixed on the electrical switch of the elevator overspeed governor through a magnetic seat; the mechanical action detection module It is fixed on the rope clamping arm of the elevator speed governor through a magnetic base. 4. The checking device of the operating speed of the elevator overspeed governor according to claim 1, characterized in that: the data processing module adopts the wince operating system; the display module is an operable touch screen. 5. The checking method of the elevator speed governor action speed checking device according to any one of claims 1 to 4, characterized in that: comprising the following steps: The first step is to set the output frequency f of the drive speed control module to drive the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter; install the speed measurement module on the drive shaft of the power drive module in the drive speed control module, The speed measurement module transmits the measured real-time speed of the elevator speed limiter to the data processing module; The second step is to set the electrical action detection module on the electrical switch of the elevator speed limiter, and set the mechanical action detection module on the rope clamp arm of the elevator speed limiter; detect the electrical action signal and mechanical action signal of the elevator speed limiter , and transmit the detected signal to the data processing module; In the third step, the data processing module judges whether the detected electrical action signal and the mechanical action signal are received: (1) if the electrical action signal and the mechanical action signal are not received, then the elevator speed limiter check fails Alarm, and proceed to the fifth step; (2) If the electrical action signal or the mechanical action signal is not received, an alarm that the elevator speed limiter is unqualified is sent, and the electrical action speed v ₁ or the mechanical action speed v is obtained through the speed measurement module ₂ , and go to the fifth step; (3) receive the electrical action signal and the mechanical action signal, then go to the fourth step; The fourth step is to obtain the electrical action speed v ₁ and the mechanical action speed v ₂ through the speed measurement module, and compare v ₁ and v ₂ : (1) if v ₁ > v ₂ , it will send out that the elevator speed limiter check fails alarm, and go to the fifth step; (2) v ₁ <1.15v ₀ or v ₂ <1.15v ₀ , then the elevator speed limiter check fails, and go to the fifth step; (3) 1.15v ₀ ≤ v ₁ ≤ v ₂ , then the elevator speed limiter is qualified, and proceed to the fifth step; where, v ₀ is the rated speed of the elevator speed limiter; The fifth step is to output the verification report of the elevator speed limiter according to the verification result. 6. The checking method of the operating speed of the elevator overspeed governor according to claim 5, characterized in that: in the first step, said setting the output frequency f of the drive speed regulating module means that by determining the measured elevator limit The output frequency f of the drive speed regulation module is set according to the rated speed v ₀ of the speed reducer and the type of elevator safety gear. 7. the verification method of elevator overspeed governor action speed according to claim 5, it is characterized in that: in the described 4th step, electrical action speed v1 refers to the speed _of elevator overspeed governor when receiving electrical action signal; _The mechanical action speed v2 refers to the speed of the elevator speed limiter when receiving the mechanical action signal. 8. The method for verifying the operating speed of the elevator overspeed governor according to claim 5, characterized in that: said setting drives the output frequency f of the speed regulating module to drive the elevator overspeed governor to accelerate and rotate to the action of the overspeed governor The upper limit speed v means that the power drive module is driven to rotate through the output frequency f of the frequency conversion speed regulation module, and the power drive module drives the elevator speed limiter to accelerate and rotate to the upper limit speed v of the speed limiter.