An in-situ vibration monitoring device for an elevator guiding system and its monitoring method

Abstract

The present invention relates to the field of vibration measurement of an elevator guiding system, and specifically discloses an in-situ monitoring device and a monitoring method for the vibration of an elevator guiding system. The in-situ monitoring device for the vibration of an elevator guiding system includes a connecting member, one end of which is fixed to a guide shoe base, and the other end penetrates and extends out of a roller rocker arm; a vibration sensing unit, which is installed on the connecting member, one end of which abuts against the roller rocker arm, and the other end abuts against the overhanging end of the connecting member; the vibration sensing unit includes a dielectric layer, an electrode layer and a base layer connected in sequence, and there is a deformation space between the dielectric layer and the electrode layer. When the roller rocker arm presses the vibration sensing unit, relative sliding occurs between the dielectric layer and the electrode layer, and a potential difference is generated between the electrode layer and the ground potential; a measurement module, one end of which is connected to the electrode layer and the other end is connected to the ground potential, and is used to measure the potential difference between the electrode layer and the ground potential. It has the effect of improving the accuracy of vibration monitoring of the elevator guiding system.

Description

Technical Field

[0001] The present invention relates to the field of vibration measurement of elevator guiding systems, and in particular to an in-situ monitoring device for elevator guiding system vibration and a monitoring method thereof. Background Art

[0002] The elevator guide rail system is an important part of an elevator, mainly composed of guide rails, guide rail brackets, guide shoes, etc. The guide rail is the safety track for the elevator to travel up and down in the hoistway, providing guidance for the elevator car and counterweight device to ensure their up and down movement along a predetermined path. In order to ensure the reliability of the guiding system, it is necessary to monitor the vibration of the elevator guiding system.

[0003] In the prior art, Chinese Patent No. CN207636295U discloses an elevator guide rail detection device and an elevator guide rail detection system, which includes a detection trolley, a traction cable rack, and a servo motor. Among them, the detection trolley is arranged on the elevator guide rail to be detected, the traction cable rack is provided with a cable, a fixed bracket, and a movable shaft. One end of the cable is wound around the movable shaft, and the other end is connected to the detection trolley. The movable shaft is rotatably connected to the fixed bracket, and the rotating shaft of the servo motor is connected to the movable shaft. When the rotating shaft of the servo motor rotates and the movable shaft follows the rotation, and the winding amount of the cable on the movable shaft increases, the cable pulls the detection trolley to slide on the elevator guide rail, and the detection trolley detects parameters such as the perpendicularity, straightness, and joint step deviation of the elevator guide rail, thereby indirectly monitoring the vibration of the elevator guiding system.

[0004] In addition to the prior art disclosed in the above patent, due to the compact space and large movement range of the elevator guiding system, it is difficult to arrange measuring points. In another vibration monitoring method for the elevator guiding system, an acceleration sensor is placed inside the car, and the acceleration sensor monitors the vibration of the car, and then indirectly monitors the vibration of the elevator guiding system through the vibration of the car.

[0005] However, for the prior art disclosed in CN207636295U, it can only indirectly reflect the vibration of the elevator guiding system by measuring the parameters of the guide rail, and cannot accurately monitor the vibration of the guiding system during the elevator movement. For the implementation method of placing the acceleration sensor inside the car to monitor the guiding system, the data measured by the acceleration sensor focuses more on the vibration of the car, and the measured data cannot accurately reflect the true vibration situation of the guiding system, which brings difficulties to the study of the vibration behavior of the guiding system and cannot provide effective help for the structural design of the guiding system.

[0006] Therefore, we propose an in-situ monitoring device for elevator guiding system vibration and a monitoring method thereof to solve the above problems. Summary of the Invention

[0007] The object of the present invention is to provide a vibration in-situ monitoring device for an elevator guiding system and its monitoring method, so as to improve the accuracy of vibration monitoring of the elevator guiding system.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] In a first aspect, the present application discloses a vibration in-situ monitoring device for an elevator guiding system, which includes a connecting member, one end of which is fixed to the guide shoe base and the other end of which penetrates and extends out of the roller rocker arm; a vibration sensing unit, which is installed on the connecting member, one end of which abuts against the roller rocker arm and the other end of which abuts against the overhanging end of the connecting member; the vibration sensing unit includes a dielectric layer, an electrode layer and a base layer connected in sequence, and there is a deformation space between the dielectric layer and the electrode layer. When the roller rocker arm presses the vibration sensing unit, relative sliding occurs between the dielectric layer and the electrode layer, and a potential difference is generated between the electrode layer and the ground potential; a measurement module, one end of which is connected to the electrode layer and the other end of which is connected to the ground potential, for measuring the potential difference between the electrode layer and the ground potential.

[0010] By adopting the above technical solutions, during the operation of the elevator, when vibration occurs between the roller and the elevator guide rail, the roller rocker arm swings, the roller rocker arm presses the vibration sensing unit, the dielectric layer buckles and deforms, the dielectric layer contacts the electrode layer after being compressed and deformed, relative sliding occurs between the dielectric layer and the electrode layer, the dielectric layer and the electrode layer rub against each other, charge transfer and accumulation occur between the dielectric layer and the electrode layer, and finally the dielectric layer and the electrode layer carry opposite-polarity charges, and a potential difference is generated between the electrode layer and the ground potential. The measurement module can measure the value of the potential difference. The vibration degree between the roller and the elevator guide rail is different, the swinging amplitude of the roller rocker arm is different, the compression deformation amount of the dielectric layer is different, and further, the relative sliding between the dielectric layer and the electrode layer is different, and the potential difference between the electrode layer and the ground potential is also different. Therefore, different vibration amounts between the roller and the elevator guide rail can correspond to different potential difference output values, so as to realize the measurement of the vibration amount. This monitoring device directly measures the vibration between the roller and the elevator guide rail (i.e., the vibration of the guiding system), thereby improving the accuracy of vibration monitoring of the elevator guiding system.

[0011] In a further embodiment, the connecting member includes: a connecting column, one end of which is fixed to the guide shoe base and the other end of which penetrates and extends out of the roller rocker arm. Installation holes are formed in the middle of the dielectric layer, the electrode layer and the base layer, and the vibration sensing unit is sleeved on the connecting column; a fixing member, which is connected to the overhanging end of the connecting column, and the vibration sensing unit is located between the fixing member and the roller rocker arm.

[0012] By adopting the above technical solution, on the one hand, the vibration sensing unit is sleeved and installed on the connecting column, so that the vibration sensing unit can be stably installed on the connecting column, making the installation of the vibration sensing unit more reliable. On the other hand, since the installation hole is provided in the middle of the dielectric layer, when the dielectric layer is squeezed, it is easier to deform, and the dielectric layer and the electrode layer are more likely to come into contact and generate relative sliding, making the vibration sensing unit more sensitive to the vibration of the elevator guiding system.

[0013] In a further embodiment, the deformation space between the dielectric layer and the electrode layer is quadrilateral, and both ends of the dielectric layer are respectively fixed to both ends of the electrode layer.

[0014] By adopting the above technical solution, according to the characteristic that a quadrilateral is prone to deformation, the space between the dielectric layer and the electrode layer is more likely to deform, further improving the sensitivity of the vibration sensing unit to the vibration of the elevator guiding system.

[0015] In a further embodiment, a plurality of the vibration sensing units are arranged in sequence, and the adjacent two vibration sensing units are connected end to end.

[0016] By adopting the above technical solution, after a plurality of vibration sensing units are arranged, the vibration deformation amount that the device can withstand in the elevator guiding system is larger, so that the measurement range of the device is larger.

[0017] In a further embodiment, a connection layer is connected and surrounded outside the plurality of vibration sensing units.

[0018] By adopting the above technical solution, under the action of the connection layer, a plurality of vibration sensing units can be connected together more stably, making the deformation of the plurality of vibration sensing units more stable.

[0019] In a further embodiment, the dielectric layer is made of TPU material, and the electrode layer is made of conductive PLA material.

[0020] By adopting the above technical solution, the dielectric layer has good elasticity and deformation performance, and the dielectric layer can better contact the electrode layer. The electrode layer has good conductivity, so that frictional electricity generation between the dielectric layer and the electrode layer can be more stable.

[0021] In a second aspect, an in-situ vibration monitoring method for an elevator guiding system according to an embodiment of the present application includes the following steps: Connect one end of a connecting member to a guide shoe base, penetrate and extend the other end through a roller rocker arm, and install the vibration sensing unit on the connecting member, so that one end of the vibration sensing unit abuts against the roller rocker arm and the other end abuts against the overhanging end of the connecting member; When the roller rocker arm vibrates, a potential difference is generated between the electrode layer and the ground potential, and the measuring module measures the value of the potential difference; The vibration deformation amount of the roller rocker arm is obtained according to the value of the potential difference.

[0022] In a further embodiment, the step of obtaining the vibration deformation amount of the roller rocker arm according to the potential difference is: determining the corresponding relationship between the vibration deformation amount of the roller rocker arm and the potential difference through experiments; calibrating the deformation amount sensing characteristic curve of the vibration sensing unit; and looking up the deformation amount corresponding to the value of the potential difference according to the deformation amount sensing characteristic curve.

[0023] In a further embodiment, a plurality of the vibration sensing units are sequentially arranged, and the vibration deformation amount of the roller rocker arm is the sum of the deformation amounts of each vibration sensing unit.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. During the operation of the elevator, when vibration occurs between the roller and the elevator guide rail, the roller rocker arm swings, the roller rocker arm squeezes the vibration sensing unit, the dielectric layer undergoes buckling deformation, the dielectric layer contacts the electrode layer after being compressed and deformed, relative sliding occurs between the dielectric layer and the electrode layer, the dielectric layer and the electrode layer rub against each other, charge transfer and accumulation occur between the dielectric layer and the electrode layer, and finally the dielectric layer and the electrode layer carry opposite-polarity charges, and a potential difference is generated between the electrode layer and the ground potential. The measuring module can measure the value of the potential difference. The vibration degree between the roller and the elevator guide rail is different, the swinging amplitude of the roller rocker arm is different, the compression deformation amount of the dielectric layer is different, and further, the relative sliding between the dielectric layer and the electrode layer is different, and the potential difference between the electrode layer and the ground potential is also different. Therefore, different vibration amounts between the roller and the elevator guide rail can correspond to different potential difference output values, thereby realizing the measurement of the vibration amount. This monitoring device directly measures the vibration between the roller and the elevator guide rail (i.e., the vibration of the guiding system), thereby improving the accuracy of elevator guiding system vibration monitoring;

[0026] 2. By sleeving the vibration sensing unit on the connecting column, the installation of the vibration sensing unit is more reliable, and the vibration sensing unit is more sensitive to the vibration of the elevator guiding system;

[0027] 3. By providing a plurality of vibration sensing units, the measuring range of this device is larger. Description of the Drawings

[0028] Figure 1 Schematic diagram of the overall structure in the embodiment of the present application;

[0029] Figure 2 Schematic diagram of the structure of the vibration sensing unit in the embodiment of the present application;

[0030] Figure 3 Explosion diagram of the connection between the vibration sensing unit and the connecting member in the embodiment of the present application;

[0031] Figure 4 Graph of the deformation amount sensing characteristic of the vibration sensing unit in the embodiment of the present application.

[0032] In the figure: 1. Connecting member; 11. Connecting column; 12. Fixing member;

[0033] 2. Vibration sensing unit; 21. Dielectric layer; 22. Electrode layer; 23. Base layer; 24. Mounting hole;

[0034] 3. Measuring module;

[0035] 4. Connection layer;

[0036] 5. Guide shoe base;

[0037] 6. Roller rocker arm. Detailed implementation manners

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figure 1 - Figure 2 , this application provides an embodiment of a vibration in-situ monitoring device for an elevator guiding system, which includes a connecting member 1, a vibration sensing unit 2, and a measurement module 3. Among them, one end of the connecting member 1 is fixed to the guide shoe seat 5, and the other end penetrates and extends out of the roller rocker arm 6, being in a cantilever state. The vibration sensing unit 2 is installed on the connecting member 1, with one end pressing against the roller rocker arm 6 and the other end pressing against the cantilever end of the connecting member 1. The roller rocker arm 6 and the cantilever end of the connecting member 1 clamp the vibration sensing unit 2. The vibration sensing unit 2 includes a dielectric layer 21, an electrode layer 22, and a base layer 23 connected in sequence. There is a deformation space between the dielectric layer 21 and the electrode layer 22. When the roller rocker arm 6 presses the vibration sensing unit 2, relative sliding occurs between the dielectric layer 21 and the electrode layer 22, and a potential difference is generated between the electrode layer 22 and the ground potential. One end of the measurement module 3 is connected to the electrode layer 22, and the other end is connected to the ground potential, for measuring the potential difference between the electrode layer 22 and the ground potential.

[0042] Combined with Figure 1 - Figure 3 , the connecting member 1 includes a connecting column 11 and a fixing member 12. Specifically, one end of the connecting column 11 is fixed to the guide shoe seat 5, and the other end penetrates and extends out of the roller rocker arm 6. Through this setting, the roller rocker arm 6 can swing relative to the connecting column 11. To realize the connection between the vibration sensing unit 2 and the connecting column 11, mounting holes 24 are respectively opened in the middle of the dielectric layer 21, the electrode layer 22, and the base layer 23. The dielectric layer 21, the electrode layer 22, and the base layer 23 are sleeved on the connecting column 11 through the mounting holes 24. The fixing member 12 is fixed to the cantilever end of the connecting column 11. The vibration sensing unit 2 is located between the fixing member 12 and the roller rocker arm 6. The fixing member 12 and the side wall of the roller rocker arm 6 clamp the vibration sensing unit 2.

[0043] When the staff installs the vibration sensing unit 2 on the connecting piece 1, the mounting hole 24 is aligned with the overhanging end of the connecting column 11, then the vibration sensing unit 2 is sleeved on the connecting column 11, and finally the fixing piece 12 is fixed to the overhanging end of the connecting column 11, so that the fixing piece 12 and the roller rocker arm 6 clamp the vibration sensing unit 2. After the above settings, on the one hand, the vibration sensing unit 2 is installed through the connecting column 11, so that the vibration sensing unit 2 can be stably installed on the connecting column 11, making the installation of the vibration sensing unit 2 more reliable. On the other hand, since the mounting hole 24 is provided in the middle of the dielectric layer 21, when the dielectric layer 21 is squeezed, it is more likely to deform, and the dielectric layer 21 and the electrode layer 22 are more likely to come into contact and generate relative sliding, making the vibration sensing unit 2 more sensitive to the vibration of the elevator guiding system.

[0044] Further, referring to Figure 3 , in the embodiment of the present application, the fixing piece 12 is threadedly connected to the overhanging end of the connecting column 11. After the vibration sensing unit 2 is passed through the connecting column 11, by screwing the fixing piece 12, the fixing piece 12 gradually approaches the vibration sensing unit 2, so that the fixing piece 12 gradually approaches the vibration sensing unit 2, and finally the fixing piece 12 and the roller rocker arm 6 clamp the vibration sensing unit 2. Since the thread has a fine-tuning function, therefore, by threadedly connecting the fixing piece 12 to the connecting column 11, the clamping of the fixing piece 12 and the roller rocker arm 6 on the vibration sensing unit 2 can be more accurate. In other embodiments, the fixing piece 12 can also be clamped to the overhanging end of the connecting column 11, and by adjusting the distance between the fixing piece 12 and the side wall of the roller swing arm 6, the fixing piece 12 and the roller rocker arm 6 can clamp the vibration sensing unit 2.

[0045] For the structural form of the connecting piece 1, in addition to the preferred embodiment of the present application, other structural forms can also be adopted, but it is necessary to ensure that the roller rocker arm 6 can move relative to the connecting piece 1, the vibration sensing unit 2 can be installed on the connecting piece 1, and the roller rocker arm 6 can exert pressure on the vibration sensing unit 2.

[0046] Further, referring to Figure 2 , the deformation space between the dielectric layer 21 and the electrode layer 22 is quadrilateral, and both ends of the dielectric layer 21 are fixed to both ends of the electrode layer 22 respectively. In the embodiment of the present application, the dielectric layer 21 and the electrode layer 22 enclose a parallelogram shape. In other embodiments, the dielectric layer 21 and the electrode layer 22 can also enclose other shapes. Through such a setting, according to the characteristic that a quadrilateral is prone to deformation, the space between the dielectric layer 21 and the electrode layer 22 is more likely to deform, further improving the sensitivity of the vibration sensing unit 2 to the vibration of the elevator guiding system.

[0047] Further, referring to Figure 2, a plurality of vibration sensing units 2 are sequentially arranged, and the adjacent two vibration sensing units 2 are connected end to end. Taking Figure 2 as an illustration, the vibration sensing unit 2 is in the shape of a parallelogram as a whole. Taking the two opposite vertices of the parallelogram as the head end and the tail end, the tail end of the previous vibration sensing unit 2 is connected to the head end of the next vibration sensing unit 2. After a plurality of vibration sensing units 2 are arranged, the vibration deformation amount of the elevator guiding system that the device can withstand is larger, so that the measurement range of the device is larger.

[0048] After connecting a plurality of vibration sensing units 2 together, in order to make the connection of the plurality of vibration sensing units 2 more stable, referring to Figure 2 , a connection layer 4 is connected around the plurality of vibration sensing units 2. In the embodiment of the present application, the connection layer 4 is in the shape of a rectangle as a whole, enclosing the plurality of vibration sensing units 2, and the vibration sensing unit 2 is connected to the inner wall of the connection layer 4. Under the action of the connection layer 4, the plurality of vibration sensing units 2 can be connected together more stably, making the deformation of the plurality of vibration sensing units 2 more stable.

[0049] Further, in the preferred embodiment of the present application, the dielectric layer 21 is made of TPU material, and the electrode layer 22 is made of conductive PLA material. The dielectric layer 21 has good elasticity and deformation performance, and the dielectric layer 21 can better contact with the electrode layer 22. The electrode layer 22 has good electrical conductivity, so that triboelectricity can be generated more stably between the dielectric layer 21 and the electrode layer 22. In other embodiments, the dielectric layer 21 can also be made of materials such as PDMS, PTFE, PET, etc., and the electrode layer 22 can also be made of materials such as graphene, Mxene, MOF, COF, etc.

[0050] For the measurement module 3, the measurement module 3 can be composed of an electrometer and supporting software. The electrometer senses the potential difference between the electrode layer 22 and the ground potential, and then obtains the potential difference between the electrode layer 22 and the ground potential through the supporting software.

[0051] Based on the above elevator guiding system vibration in-situ monitoring device, the present application also discloses an embodiment of an elevator guiding system vibration in-situ monitoring method, which includes the following steps:

[0052] S1. Connect one end of the connecting member 1 to the guide shoe seat 5, the other end penetrates and extends out of the roller rocker arm 6, and install the vibration sensing unit 2 on the connecting member 1, so that one end of the vibration sensing unit 2 abuts against the roller rocker arm 6, and the other end abuts against the overhanging end of the connecting member 1;

[0053] S2. When the roller rocker arm 6 vibrates, a potential difference is generated between the electrode layer 22 and the ground potential, and the measurement module 3 measures the value of the potential difference;

[0054] S3. Obtain the vibration deformation amount of the roller rocker arm 6 based on the numerical value of the potential difference.

[0055] For step S1, taking the Figure 1 - Figure 3 disclosed embodiment as an example, the staff first fixes the connecting column 11 on the guide shoe base 5, then aligns the mounting holes 24 of the dielectric layer 21, the electrode layer 22 and the base layer 23 with the overhanging end of the connecting column 11. Next, the vibration sensing unit 2 is passed through the connecting column 11. Finally, the fixing member 12 is fixed to the overhanging end of the connecting column 11, so that the fixing member 12 and the roller rocker arm 6 clamp the vibration sensing unit 2.

[0056] For step S2, when the roller rocker arm 6 vibrates, the roller rocker arm 6 squeezes the vibration sensing unit 2. The dielectric layer 21 undergoes buckling deformation under the squeezing action. After the dielectric layer 21 is deformed by pressure, it contacts the electrode layer 22. Relative sliding occurs between the dielectric layer 21 and the electrode layer 22, and the dielectric layer 21 and the electrode layer 22 rub against each other. Charge transfer and accumulation occur between the dielectric layer 21 and the electrode layer 22. Eventually, the dielectric layer 21 and the electrode layer 22 carry opposite-polarity charges, and a potential difference is generated between the electrode layer 22 and the ground potential. The numerical value of the potential difference can be measured by the measuring module 3.

[0057] Furthermore, for step S3, its specific steps are as follows:

[0058] S31. Determine the corresponding relationship between the vibration deformation amount of the roller rocker arm 6 and the numerical value of the potential difference through experiments;

[0059] S32. Calibrate the deformation amount sensing characteristic curve of the vibration sensing unit 2.

[0060] In the embodiment of the present application, multiple vibration sensing units 2 are sequentially arranged. Therefore, the vibration deformation amount of the roller rocker arm 6 (i.e., the vibration deformation amount of the elevator guiding system) is the sum of the deformation amounts of each vibration sensing unit 2.

[0061] In the preferred embodiment of the present application, 3 vibration sensing units are provided. Taking the dielectric layer material and the electrode layer material selected in the actual implementation of the present application as an example, steps S31 and S32 are explained in detail. When the dielectric layer is a TPU 95A material with a thickness of 0.5 mm and the electrode layer is a PLA material doped with carbon with a thickness of 1 mm, through experiments, the corresponding relationship between the vibration deformation amount of the roller rocker arm and the potential difference is determined, and finally the deformation amount sensing characteristic curve of the vibration sensing unit 2 as shown in Figure 4 is calibrated. After calibration, V 1p = 1.36Δx, V 2p = 2.99Δx, V 3p = 2.49Δx. Wherein, V 1p , V 2p , V 3pThe numerical values representing the potential differences of the three vibration sensing units respectively, and Δx represents the deformation amount of each vibration sensing unit. The sum of the potential differences of the three vibration sensing units 2 is the potential difference of the three vibration sensing units 2 as a whole, that is, the potential difference of the three vibration sensing units 2 as a whole is V 1p +V 2p +V 3p = 6.84Δx. In the actual application process, the staff can obtain the deformation amount corresponding to the numerical value of the potential difference according to the deformation amount sensing characteristic curve of the vibration sensing unit 2

[0062] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved

[0063] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art

Claims

1. An elevator guide system vibration in-situ monitoring device, comprising: A connecting member (1), one end of which is fixed to the guide shoe seat (5), and the other end of which passes through and extends out of the roller rocker arm (6); A vibration sensing unit (2) is mounted on the connecting member (1), one end of which is pressed against the roller rocker arm (6), and the other end of which is pressed against the overhanging end of the connecting member (1); the vibration sensing unit (2) comprises a dielectric layer (21), an electrode layer (22) and a base layer (23) which are connected in sequence, a deformation space is provided between the dielectric layer (21) and the electrode layer (22), and when the roller rocker arm (6) squeezes the vibration sensing unit (2), relative sliding occurs between the dielectric layer (21) and the electrode layer (22), and a potential difference is generated between the electrode layer (22) and a ground point; A measuring module (3), one end of which is connected to the electrode layer (22) and the other end of which is connected to the ground point, and is used to measure the potential difference between the electrode layer (22) and the ground point; The connecting member (1) comprises: A connecting column (11), one end of which is fixed to the guide shoe seat (5), and the other end of which penetrates and extends out of the roller rocker arm (6); the dielectric layer (21), the electrode layer (22) and the base layer (23) are all provided with mounting holes (24) in the middle, and the vibration sensor unit (2) is sleeved on the connecting column (11); A fixing member (12) is connected to the overhanging end of the connecting column (11), and the vibration sensing unit (2) is located between the fixing member (12) and the roller rocker arm (6).

2. The elevator guide system vibration in-situ monitoring device according to claim 1, characterized in that: The deformation space between the dielectric layer (21) and the electrode layer (22) is a quadrilateral, and two ends of the dielectric layer (21) are respectively fixed to two ends of the electrode layer (22).

3. An elevator guide system vibration in-situ monitoring device according to any one of claims 1-2, characterized in that: A plurality of the vibration sensing units (2) are arranged in sequence, and two adjacent vibration sensing units (2) are connected end to end.

4. The elevator guide system vibration in-situ monitoring device according to claim 3, characterized in that: The plurality of vibration sensing units (2) are surrounded and connected with a connection layer (4).

5. An elevator guide system vibration in-situ monitoring device according to any one of claims 1-2, characterized in that: The dielectric layer (21) is made of TPU material, and the electrode layer (22) is made of conductive PLA material.

6. The monitoring method of the elevator guide system vibration in-situ monitoring device according to any one of claims 1 to 2, characterized in that: The following steps are involved: One end of the connecting member (1) is connected to the guide shoe seat (5), and the other end passes through and extends out of the roller rocker arm (6); and the vibration sensor unit (2) is installed on the connecting member (1), so that one end of the vibration sensor unit (2) is pressed tightly against the roller rocker arm (6), and the other end is pressed tightly against the overhanging end of the connecting member (1); When the roller rocker arm (6) vibrates, an electric potential difference is generated between the electrode layer (22) and the ground position, and the measuring module (3) measures the value of the electric potential difference; The vibration deformation amount of the roller rocker arm (6) is obtained according to the value of the potential difference.

7. A monitoring method according to claim 6, characterized in that: The steps of obtaining the vibration deformation amount of the roller rocker arm (6) according to the value of the potential difference are as follows: Determining the corresponding relationship between the vibration deformation of the roller rocker arm (6) and the value of the potential difference through experiments; Calibrate the deformation sensing characteristic curve of the vibration sensing unit (2); The deformation amount corresponding to the potential difference value is obtained according to the deformation amount sensing characteristic curve.

8. A monitoring method according to claim 6, characterized in that: The vibration sensing units (2) are arranged in plurality in sequence, and the vibration deformation of the roller rocker arm (6) is the sum of the deformations of each of the vibration sensing units (2).

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