阅读说明：本技术 一种电梯限速器安全钳联动试验检测方法和系统 (Elevator speed limiter safety gear linkage test detection method and system ) 是由 张辉 罗立辉 叶玫 金玉成 黄慧英 于 2021-08-17 设计创作，主要内容包括：本发明涉及电梯限速器安全钳联动试验检测技术领域,尤其涉及一种电梯限速器安全钳联动试验检测方法和系统,包括以下步骤：S1：执行电梯限速器安全钳联动试验,若所述安全钳动作失效,则采集置于电梯限速器以及安全钳上的钢丝绳在打滑状态下的提拉力；S2：判断采集到的钢丝绳的提拉力是否在预设阈值范围内；若是,则得出检测结果为安全钳异常；若否,则得出检测结果为限速器异常。通过测量所得的钢丝绳的提拉力与预设阈值进行比较能够快速判断限速器安全钳的工作状态,找出在限速器安全钳联动试验中安全钳动作失效的主要原因。(The invention relates to the technical field of elevator speed limiter safety gear linkage test detection, in particular to a method and a system for detecting an elevator speed limiter safety gear linkage test, which comprises the following steps: s1: performing an elevator speed limiter safety gear linkage test, and if the safety gear fails to work, acquiring the lifting force of a steel wire rope on the elevator speed limiter and the safety gear in a slipping state; s2: judging whether the collected lifting force of the steel wire rope is within a preset threshold range; if so, obtaining a detection result that the safety gear is abnormal; if not, the detection result is that the speed limiter is abnormal. The working state of the safety tongs of the speed limiter can be rapidly judged by comparing the measured lifting force of the steel wire rope with a preset threshold value, and the main reason of the failure of the safety tongs in the linkage test of the safety tongs of the speed limiter is found out.)

1. A detection method for an elevator speed limiter safety gear linkage test is characterized by comprising the following steps:

s1: performing an elevator speed limiter safety gear linkage test, and if the safety gear fails to work, acquiring the lifting force of a steel wire rope on the elevator speed limiter and the safety gear in a slipping state;

s2: judging whether the collected lifting force of the steel wire rope is within a preset threshold range; if so, obtaining a detection result that the safety gear is abnormal; if not, the detection result is that the speed limiter is abnormal.

2. The method for detecting the linkage test of the elevator speed limiter and the safety tongs according to the claim 1, characterized in that the lifting forces of the steel wire rope on the elevator speed limiter and the safety tongs under different working conditions are collected in the step S1, and the maximum collected lifting force is used as the lifting force of the steel wire rope in the step S2.

3. The method for detecting the elevator speed limiter safety gear linkage test according to claim 1, wherein the step S2 further comprises the following steps: and if the detected result is that the safety gear is abnormal, adjusting the safety gear and then repeatedly executing the elevator speed limiter safety gear linkage test until the safety gear normally acts.

4. The method for detecting the elevator speed limiter safety gear linkage test according to claim 1, wherein the step S2 further comprises the following steps: and if the obtained detection result indicates that the speed limiter is abnormal, adjusting the speed limiter to enable the lifting force of the steel wire rope to be within the range of the preset threshold value.

5. The method for detecting the elevator speed limiter safety gear linkage test according to claim 1, wherein the elevator speed limiter safety gear linkage test is specifically executed as follows:

in the process of controlling the car to move at the overhauling speed, the safety tongs are observed to move or not after the electric switch of the speed limiter is in short circuit.

6. A detection system for a linkage test of a safety gear of an elevator speed limiter comprises the speed limiter positioned at the top of an elevator shaft, a tensioning device positioned at the bottom of the elevator shaft and a car arranged in the elevator shaft and connected with a guide rail in the elevator shaft, wherein the bottom of the car is also provided with the safety gear connected with the guide rail;

the speed limiter is connected with the tensioning device in a closed loop mode through a steel wire rope, and the safety tongs are arranged on the steel wire rope;

the steel wire rope tension sensor is characterized in that a slack section is arranged on the steel wire rope, a tension sensor is arranged at a position corresponding to the slack section, a fixed end and a detection end of the tension sensor are respectively fixed at two ends of the slack section, so that the tension sensor and the rest parts of the steel wire rope except the slack section are in the same tension state, and a connecting line of the fixed end and the detection end of the tension sensor is positioned in the vertical direction.

7. The elevator speed limiter safety gear linkage test detection system of claim 6, wherein the tension sensor is located above the car.

8. The elevator speed limiter safety gear linkage test detection system according to claim 7, further comprising a clamp, wherein one end of the clamp is a clamping end, one end of the clamp, which is far away from the clamping end, is fixed to the top of the car, and the clamp end of the clamp is connected with the tension sensor.

Technical Field

The invention relates to the technical field of elevator speed limiter safety gear linkage test detection, in particular to an elevator speed limiter safety gear linkage test detection method and system.

Background

A speed limiter safety gear linkage system is an important safety part in an elevator, but the speed limiter lifting force and the maximum lifting force required by the safety gear action are not set and corrected at the beginning of type test and production, and are not quantitatively checked and verified in the subsequent installation, maintenance and inspection processes. Due to the influence of factors such as part abrasion, improper maintenance and the like, the two parameters may change in the using process, so that the safety gear linkage system of the speed limiter cannot reliably act, and serious potential safety hazards exist.

In a speed governor and safety gear linkage experiment after an elevator is put into use, the effectiveness of the actions of the speed governor and the safety gear is only verified, and if the speed governor and safety gear linkage experiment fails, the following three reasons are possible: 1. the action speed of the speed limiter is not corrected correctly, so that the speed limiter cannot act normally; 2. the lifting force of the speed limiter is insufficient; 3. the safety gear is not properly adjusted. The problem of speed governor correction can be adjusted and verified through using a special verification instrument, but the insufficient lifting force of the speed governor and the problem of safety gear adjustment can only be found through a linkage test generally, and the judgment is mainly based on experience, whether the judgment is practical and effective after the test adjustment is carried out, and whether the linkage test is successful or not is only judged through re-doing, and the requirement for lifting force of the speed governor in the national standard cannot be met only based on experience judgment, so that it is necessary to design an inspection method for quantitative analysis.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the elevator speed limiter safety gear linkage test detection method and system can obtain the accurate reason of the action failure of the safety gear in the speed limiter safety gear linkage test through quantitative analysis so as to improve the maintenance efficiency.

In order to solve the technical problems, the invention adopts a technical scheme that:

a detection method for an elevator speed limiter safety gear linkage test comprises the following steps:

s1: performing an elevator speed limiter safety gear linkage test, and if the safety gear fails to work, acquiring the lifting force of a steel wire rope on the elevator speed limiter and the safety gear in a slipping state;

s2: judging whether the collected lifting force of the steel wire rope is within a preset threshold range; if so, obtaining a detection result that the safety gear is abnormal; if not, the detection result is that the speed limiter is abnormal.

The invention adopts another technical scheme that:

a detection system for a linkage test of a safety gear of an elevator speed limiter comprises the speed limiter positioned at the top of an elevator shaft, a tensioning device positioned at the bottom of the elevator shaft and a car arranged in the elevator shaft and connected with a guide rail in the elevator shaft, wherein the bottom of the car is also provided with the safety gear connected with the guide rail;

the speed limiter is connected with the tensioning device in a closed loop mode through a steel wire rope, and the safety tongs are arranged on the steel wire rope;

the steel wire rope is provided with a slack section, a tension sensor is arranged at a position corresponding to the slack section, a fixed end and a detection end of the tension sensor are respectively fixed at two ends of the slack section, so that the tension sensor and the rest parts of the steel wire rope except the slack section are in the same tensioning state, and a connecting line of the fixed end and the detection end of the tension sensor is positioned in the vertical direction.

The invention has the beneficial effects that:

according to the method and the system for detecting the linkage test of the safety tongs of the elevator speed limiter, the lifting force of the steel wire rope in a slipping state is the maximum lifting force of the speed limiter, the working state of the safety tongs of the speed limiter can be quickly judged by measuring and collecting the lifting force of the steel wire rope and judging whether the collected lifting force of the steel wire rope is within the range of the preset threshold value or not, and the main reason for the failure of the actions of the safety tongs in the linkage test of the safety tongs of the speed limiter is found out by comparing the measured lifting force of the steel wire rope with the preset threshold value. The on-site judgment of the inspector is more reliable, and huge risks caused by changes of stress conditions of parts such as the speed limiter, the safety gear and the like can be prevented.

Drawings

FIG. 1 is a flow chart of the steps of a method for detecting the elevator speed limiter safety gear linkage test of the present invention;

FIG. 2 is a schematic structural diagram of a linkage test detection system for safety tongs of an elevator speed limiter;

FIG. 3 is a schematic structural diagram of a linkage test detection system for safety tongs of an elevator speed limiter according to the invention;

FIG. 4 is a schematic structural diagram of a linkage test detection system for safety tongs of an elevator speed limiter according to the invention;

description of reference numerals:

1. a speed limiter; 11. a wire rope; 111. a relaxation section;

2. a tensioning device;

3. a car;

4. safety tongs; 41. a safety clamp body; 42. a first joystick; 43. a first lever; 44. a second lever; 45. a connecting rod; 46. a second joystick;

5. a tension sensor.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1, a method for detecting a linkage test of a safety gear of an elevator speed limiter is provided, which comprises the following steps:

s1: performing an elevator speed limiter safety gear linkage test, and if the safety gear fails to work, acquiring the lifting force of a steel wire rope on the elevator speed limiter and the safety gear in a slipping state;

s2: judging whether the collected lifting force of the steel wire rope is within a preset threshold range; if so, obtaining a detection result that the safety gear is abnormal; if not, the detection result is that the speed limiter is abnormal.

From the above description, the beneficial effects of the present invention are: the lifting force of the steel wire rope in a slipping state is the maximum lifting force of the speed limiter, the working state of the safety tongs of the speed limiter can be quickly judged by measuring and collecting the lifting force of the steel wire rope and judging whether the collected lifting force of the steel wire rope is within the range of a preset threshold value, and the main reason for the action failure of the safety tongs in the linkage test of the safety tongs of the speed limiter is found out by comparing the measured lifting force of the steel wire rope with the preset threshold value. The on-site judgment of the inspector is more reliable, and huge risks caused by changes of stress conditions of parts such as the speed limiter, the safety gear and the like can be prevented.

Further, in step S1, the lifting forces of the wire rope placed on the elevator speed limiter and the safety gear under different working conditions are collected, and the collected maximum lifting force is used as the lifting force of the wire rope in step S2.

According to the description, the lifting force of the steel wire rope on the elevator speed limiter and the safety tongs under the use working condition is collected, the maximum lifting force obtained by comparing the lifting force of the steel wire rope under different working condition states is used as the maximum lifting force of the speed limiter, the maximum lifting force of the speed limiter is compared with the preset threshold range, and if the maximum lifting force of the speed limiter is still not within the preset threshold range, the reason that the safety tongs fail in the elevator speed limiter safety tongs linkage test can be directly judged to be abnormal.

Further, step S2 further includes: and if the detected result is that the safety gear is abnormal, adjusting the safety gear and then repeatedly executing the elevator speed limiter safety gear linkage test until the safety gear normally acts.

As can be seen from the above description, if the detection result is that the safety gear is abnormal, the abnormal condition of the safety gear needs to be checked and corrected. And when the safety tongs are abnormal, checking whether the connection among the parts of the connecting rod of the safety tongs, the diagonal draw bar and the jaw of the safety tongs and the parts is abnormal, renovating and correcting the abnormality of the safety tongs, and then re-executing the elevator speed limiter safety tongs linkage test to check whether the action of the safety tongs is effective, and if not, re-overhauling the safety tongs and re-executing the elevator speed limiter safety tongs linkage test until the safety tongs normally act.

Further, step S2 further includes: and if the obtained detection result indicates that the speed limiter is abnormal, adjusting the speed limiter to enable the lifting force of the steel wire rope to be within the range of the preset threshold value.

From the above description, if the detected result is that the speed limiter is abnormal, it indicates that the speed limiter may have the problems of oil stain on the steel wire rope, abrasion of the rope groove, abnormal brightness of the surface of the pressing block and the like, so that the lifting force of the speed limiter changes, and after the problems are checked and overhauled one by one, the lifting force of the steel wire rope is measured again and is within the preset threshold range.

Further, it specifically is to carry out elevator overspeed governor safety tongs linkage test:

in the process of controlling the car to move at the overhauling speed, the safety tongs are observed to move or not after the electric switch of the speed limiter is in short circuit.

According to the description, the maximum lifting force of the speed limiter is obtained in the speed limiter safety tongs linkage test, the safety tongs linkage test is executed, the steel wire rope of the speed limiter is subjected to slipping treatment, the lifting force of the steel wire rope arranged on the elevator speed limiter and the steel wire rope arranged on the safety tongs in the slipping state is collected in the downward running process of the driving car, and the force of the measured steel wire rope in the slipping state is the maximum lifting force of the speed limiter.

Referring to fig. 2 to 4, the invention further provides a detection system for the elevator speed limiter safety gear linkage test, which comprises a speed limiter positioned at the top of an elevator shaft, a tension device positioned at the bottom of the elevator shaft and a car arranged in the elevator shaft and connected with a guide rail in the elevator shaft, wherein the bottom of the car is also provided with a safety gear connected with the guide rail;

the speed limiter is connected with the tensioning device in a closed loop mode through a steel wire rope, and the safety tongs are arranged on the steel wire rope;

the steel wire rope is provided with a slack section, a tension sensor is arranged at a position corresponding to the slack section, a fixed end and a detection end of the tension sensor are respectively fixed at two ends of the slack section, so that the tension sensor and the rest parts of the steel wire rope except the slack section are in the same tensioning state, and a connecting line of the fixed end and the detection end of the tension sensor is positioned in the vertical direction.

From the above description, the beneficial effects of the present invention are: the tension sensor is arranged on the slack section of the steel wire rope, and the fixed end and the detection end of the tension sensor are respectively fixed at the two ends of the slack section, so that the tension sensor and the steel wire rope can be connected into a whole, the tension sensor and the rest parts of the steel wire rope except the slack section are in the same tensioning state, a stress point in the vertical direction can be provided for the tension sensor on the steel wire rope, and the force measured by the tension sensor after the detection end of the sensor is arranged on the stress point is the lifting force of the steel wire rope. The lifting force of the steel wire rope of the speed limiter under different working conditions can be collected in real time through the tension sensor, so that the quantitative analysis of the lifting force of the speed limiter is realized.

Further, the tension sensor is located above the car.

According to the description, the tension sensor is located above the car, so that the lifting force of the speed governor under the downlink working condition can be detected conveniently during the linkage test of the safety tongs of the speed governor.

Further, still include anchor clamps, anchor clamps one end is the exposed core, the one end that the exposed core was kept away from to anchor clamps is fixed the top of car, the exposed core of anchor clamps with tension sensor is connected.

From the above description, it can be known that the connection between the tension sensor and the steel wire rope can be flexibly adjusted by adopting the clamp, so that the fixing position of the tension sensor can be adjusted under different working conditions.

Referring to fig. 1, a first embodiment of the present invention is:

the elevator is subjected to type test at the beginning of elevator production, so that the speed limiter lifting force and the maximum lifting force required by the action of the safety tongs are set and corrected, and the speed limiter lifting force of the elevator when leaving a factory meets the regulation of the standard of elevator manufacturing and installation safety standard. After the elevator is put into use, a speed limiter safety gear linkage test is carried out on the elevator periodically so as to test the action effectiveness of the speed limiter and the safety gear in use.

The invention provides a detection method for an elevator speed limiter safety gear linkage test, which comprises the following steps:

s1: performing an elevator speed limiter safety gear linkage test, and if the safety gear fails to work, acquiring the lifting force of a steel wire rope on the elevator speed limiter and the safety gear in a slipping state;

s2: judging whether the collected lifting force of the steel wire rope is within a preset threshold range; if so, obtaining a detection result that the safety gear is abnormal; if not, the detection result is that the speed limiter is abnormal.

And (3) executing a linkage test of the safety tongs of the elevator speed limiter, if the steel wire rope of the speed limiter does not slip and the safety tongs can perform reliable action to emergently brake the elevator on the guide rail, so that effective protection is provided for safe operation of the elevator, the linkage test of the speed limiter safety tongs is successful, and the speed limiter and the safety tongs of the elevator are in an effective state at the moment.

And (4) executing a linkage test of the safety gear of the elevator speed limiter, and if the action of the safety gear fails, namely the safety gear cannot emergently stop the elevator on the guide rail, indicating that the linkage test of the safety gear of the speed limiter is unsuccessful. The reason that the elevator speed limiter safety gear linkage test fails and needs to be further judged to fail is specifically that the speed limiter lifting force is insufficient or the safety gear is improperly adjusted.

The step S1 of collecting the lifting force of the wire rope placed on the elevator speed limiter and the safety gear in the slipping state is specifically as follows:

firstly, a steel wire rope on the speed limiter is subjected to slipping treatment so that the steel wire rope can enter a slipping state in the working process. The slipping process can adjust the steel wire rope on the speed limiter from a tensioning state to a loosening state before the elevator is started, so that the steel wire rope arranged on the speed limiter and the safety tongs can be in a slipping state in the running process of the elevator. The specific collection of the lifting force of the steel wire rope in the slipping state is as follows: the steel wire rope is provided with the tension sensor, when an elevator speed limiter safety tongs linkage test is executed, an elevator is operated, the tension sensor can acquire the lifting force of the steel wire rope in the process from a static state to a slipping state, and the lifting force of the steel wire rope in the slipping state is the maximum lifting force of the speed limiter steel wire rope.

When the step S2 is executed, comparing the pulling force of the steel wire rope in the slipping state obtained in the step S1 with a preset threshold range, and if the pulling force of the steel wire rope in the slipping state is within the preset threshold range, obtaining a detection result that the safety gear is abnormal; and if the lifting force of the steel wire rope in the slipping state is not within the preset threshold range, obtaining a detection result as the abnormal speed limiter. Specifically, the preset threshold is the maximum pulling force of the speed governor steel wire rope recorded in the type test report, and the preset threshold range is the maximum pulling force range of the speed governor steel wire rope in the type test report. And the maximum lifting force recorded by the steel wire rope of the speed limiter in a type test report meets the maximum lifting force required by the safety tongs to realize reliable action.

In this embodiment, step S1 further includes: and collecting the lifting force of the steel wire rope on the elevator speed limiter and the safety tongs under different working conditions, and taking the maximum collected lifting force as the lifting force of the steel wire rope in the step S2.

Specifically, carry out elevator overspeed governor safety tongs linkage test, set up the elevator into maintenance state earlier, when the elevator down, stop the car and start the elevator after the second-highest layer, the car descends with maintenance speed this moment, and the car drives the wire rope motion, because wire rope skidded after the electrical switch of short circuit overspeed governor, so wire rope gets into the state of skidding from quiescent condition in the motion process, can gather the pulling force of wire rope in the motion process from quiescent condition to the state of skidding in real time through force transducer. And otherwise, when the elevator goes upwards, stopping the elevator car at a second lower floor and then starting the elevator, and continuously executing and acquiring the lifting force of the speed limiter in the movement process from the static state to the slipping state of the steel wire rope under the working condition that the elevator goes upwards according to the method.

Preferably, a display device is configured to display the collected lifting force of the steel wire rope in the movement process from the static state to the slipping state in real time in the display device in a wave form graph mode, and a preset threshold range (namely the maximum lifting force range of the steel wire rope of the speed limiter in a type test report) is displayed in the display device, so that the lifting force of the steel wire rope placed on the elevator speed limiter and the safety tongs in different working condition states can be conveniently compared with the preset threshold range in real time. Further, preferably, the display device is a handheld display device, so that an inspector can judge the lifting force of the steel wire rope in different working condition states through the handheld display device on site, and the handheld display device can visually obtain the lifting force of the steel wire rope in different working condition states and compare the lifting force of the steel wire rope in different working condition states with a threshold range.

In this embodiment, step S2 further includes: and if the detected result is that the safety gear is abnormal, adjusting the safety gear and then repeatedly executing the elevator speed limiter safety gear linkage test until the safety gear normally acts. When the detection result is that the safety gear is abnormal, the abnormal condition of the safety gear needs to be checked and corrected. And when the safety tongs are abnormal, checking whether the connection among the parts of the connecting rod of the safety tongs, the diagonal draw bar and the jaw of the safety tongs and the parts is abnormal, renovating and correcting the abnormality of the safety tongs, and then re-executing the elevator speed limiter safety tongs linkage test to check whether the action of the safety tongs is effective, and if not, re-overhauling the safety tongs and re-executing the elevator speed limiter safety tongs linkage test until the safety tongs normally act.

In this embodiment, step S2 further includes: and if the obtained detection result indicates that the speed limiter is abnormal, adjusting the speed limiter to enable the lifting force of the steel wire rope to be within the range of the preset threshold value. And when the detection result is that the speed limiter is abnormal, the speed limiter is proved to have the problems of oil stain generation of the steel wire rope, abrasion of a rope groove, abnormal light intensity of the surface of a pressing block and the like possibly so as to cause the change of the lifting force of the speed limiter, and after the problems are checked and overhauled one by one, the lifting force of the steel wire rope is measured again and is within the range of a preset threshold value.

In this embodiment, the execution of the elevator speed limiter safety gear linkage test specifically includes: the elevator is set to be in a maintenance state, when the elevator runs downwards, the lift car is stopped at a second-highest floor and then started, and in the process of controlling the lift car to move downwards at a maintenance speed, the safety tongs are observed to move or not after the electric switch of the speed limiter is in short circuit. When the elevator goes upward, the safety gear resets, stops the car at the second lowest floor and then starts the elevator, controls the car to move upward at the maintenance speed, and in the process of controlling the car to move upward, the electric switch of the speed limiter is powered off, the car top recovers the electric switch of the safety gear, the power is supplied, and the elevator recovers to be normal.

In this embodiment, the detection method for the elevator speed limiter safety gear linkage test provided by the invention specifically comprises the following steps:

the method comprises the following steps: obtaining the maximum lifting force required by the safety tongs to realize reliable action in a type test; the method specifically comprises the following steps: the elevator is subjected to a type test, after the speed limiter mechanically acts in the type test process, the steel wire rope generates a lifting force to lift the safety gear, the safety gear reliably acts, the elevator traction steel wire rope slips, and the maximum measured tension on the speed limiter steel wire rope is the maximum lifting force required by the safety gear to realize reliable action. And the tension of the steel wire rope of the speed limiter is not less than two times or 300N (the larger value of the two values) of the force required by the safety tongs to reliably act.

Step two: acquiring the maximum lifting force of the speed limiter in a speed limiter safety tongs linkage test; the method specifically comprises the following steps: and executing a safety gear linkage test, performing slipping treatment on the steel wire rope of the speed limiter, collecting the lifting force of the steel wire rope on the elevator speed limiter and the safety gear in the slipping state in the process of driving the car to move downwards, and measuring the force of the steel wire rope in the slipping state at the moment, namely the maximum lifting force of the steel wire rope of the speed limiter.

Step three: and comparing whether the maximum pulling force of the speed limiter steel wire rope obtained in the step two is within a preset threshold range, wherein the preset threshold is the maximum pulling force required by the safety tongs to realize reliable action obtained in the step one, and the preset threshold range is the maximum pulling force range required by the safety tongs to realize reliable action. If the maximum lifting force of the speed limiter is within the preset threshold range, the maximum lifting force required by the action of the safety gear is changed, and related parts of the safety gear are required to be adjusted again; and if the maximum pulling force of the speed limiter is smaller than the preset threshold range, indicating that the current speed limiter is abnormal, and readjusting related parts of the speed limiter.

Referring to fig. 2 to 4, the elevator speed limiter safety gear linkage test detection system comprises a speed limiter 1 positioned at the top of an elevator shaft, a tensioning device 2 positioned at the bottom of the elevator shaft, and a car 3 arranged in the elevator shaft and connected with a guide rail in the elevator shaft, wherein the bottom of the car is also provided with a safety gear 4 connected with the guide rail; the speed limiter comprises a speed limiter main body and a steel wire rope 11 arranged on the speed limiter. The tensioning device is a tensioning wheel.

The speed limiter is connected with the tensioning device in a closed loop mode through a steel wire rope, and the safety tongs are arranged on the steel wire rope. Specifically, the steel wire rope is provided with a slack section 111, a tension sensor 5 is arranged at a position corresponding to the slack section, and the tension sensor is an S-shaped tension sensor. The fixed end of the tension sensor is fixed at the upper end of the slack section through a clamp, the detection end of the tension sensor is fixed at the lower end of the slack section through the clamp, the tension sensor and the rest parts of the steel wire rope except the slack section are in the same tensioning state, and the connecting line of the fixed end and the detection end of the tension sensor is located in the vertical direction.

In this embodiment, the slack section of the wire rope is located above the top of the car, and the tension sensor is located above the top of the car.

In this embodiment, the clamp may be a rope clamp, a U-shaped rope clamp, or an electromagnet. The anchor clamps one end is the exposed core, the one end that the exposed core was kept away from to anchor clamps is fixed on the structure roof beam at the top of car.

In this embodiment, the display device further includes a handheld display device, a controller is disposed in the handheld display device, the controller includes a memory, a processor, and an electrical signal conversion module, and a computer program that can be run on the processor is stored in the memory. The tension sensor is electrically connected with the controller, the tension sensor converts the collected lifting force of the steel wire rope into an electric signal to be transmitted to the controller, and the processor drives the electric signal conversion module to convert the collected lifting force of the steel wire rope into a oscillogram to be displayed on a screen of the handheld display device when being executed, and compares the collected lifting force of the steel wire rope with a preset threshold range. The preset threshold range is the maximum pulling force range of the speed limiter steel wire rope stored in the memory in the type test report.

In this embodiment, the take-up pulley is adjustable movable pulley, can adjust wire rope's elasticity through the position of adjusting the take-up pulley. When the wire rope is subjected to a slip treatment, the distance between the tension pulley and the speed governor can be reduced, so that the wire rope can be adjusted from a tensioned state to a relaxed state.

In this embodiment, the safety gear is composed of a safety gear operating mechanism and a safety gear body 41, the safety gear operating mechanism includes a first operating lever 42, a first lever 43, a second lever 44, a connecting rod 45, and a second operating lever 46, which are hinged in sequence, lower ends of the first operating lever and the second operating lever are respectively connected with the safety gear body located on two sides of the bottom of the car, an upper end of the first operating lever is hinged with one end of the first lever, an upper end of the second operating lever is hinged with one end of the second lever, and the other end of the first lever and the other end of the second lever are respectively hinged with two ends of the connecting rod. The speed limiter steel wire rope is respectively connected with the safety gear control mechanism, when the speed limiter acts, the speed limiter steel wire rope pulls the first lever and the second lever and respectively pulls the first operating lever and the second operating lever up through the connecting rod, so that the safety gear bodies on two sides act simultaneously, and the purpose of braking the car is achieved.

In this embodiment, the slack section of the wire rope can be used for loosening the wire rope of a section of speed limiter above the top of the car by raising the tension wheel, and the tension sensor is arranged in the slack section of the wire rope. The distance between the slack section and the top of the car ranges from 15cm to 30 cm.

The mode of using the elevator speed limiter safety gear linkage test detection system of the invention is as follows:

firstly, the elevator is subjected to a type test, after the speed limiter mechanically acts in the type test process, the steel wire rope generates a lifting force to lift the safety tongs, the safety tongs reliably act, the elevator traction steel wire rope slips, and the maximum tension on the steel wire rope of the speed limiter measured at the moment is the maximum lifting force required by the safety tongs to realize reliable action.

Secondly, a tension sensor is arranged on a loose section of the steel wire rope, the speed limiter is started, the steel wire rope of the speed limiter is subjected to slipping treatment, and in the process of driving the car to move downwards, when the steel wire rope of the speed limiter slips, the force of the steel wire rope in the slipping state is measured at the moment, namely the maximum lifting force of the speed limiter.

And finally, the steel wire rope of the speed limiter slips and the safety gear is not pulled up, the lifting force of the steel wire rope of the speed limiter measured in the slipping state is the maximum lifting force of the speed limiter, the lifting force of the steel wire rope of the speed limiter measured in the slipping state is compared with a preset threshold range, if the value is within the preset threshold range, the maximum lifting force required by the action of the safety gear is changed, the related parts of the safety gear are readjusted, and if the value is smaller than the preset threshold range, the current abnormal speed limiter is judged, and the related parts of the speed limiter are readjusted.

In summary, according to the elevator speed limiter safety gear linkage test detection method and system provided by the invention, the lifting force of the speed limiter steel wire rope of the elevator under the actual working condition in the slipping state is obtained by adopting the speed limiter safety gear linkage test detection system and is used as the maximum lifting force of the speed limiter steel wire rope, the obtained maximum lifting force of the speed limiter steel wire rope is quantitatively analyzed by adopting the speed limiter safety gear linkage test detection method, whether the maximum lifting force of the speed limiter steel wire rope is within the maximum lifting force range of the steel wire rope of the speed limiter in the type test report is compared, and data support is provided, so that the specific reason of the failure of the safety gear in the execution of the elevator speed limiter safety gear linkage test is obtained. Meanwhile, the on-site judgment of an inspector is facilitated, so that huge risks caused by changes of stress conditions of parts such as a speed limiter and a safety clamp are prevented, and convenience and support are provided for inspection work.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.