Escalator vibration reduction system and escalator vibration reduction method

Abstract

The present invention relates to an escalator vibration reduction system and an escalator vibration reduction method, comprising: a guide rail, bearing support seats are arranged at both ends of the guide rail, and a drive shaft rotatably arranged on the bearing support seat; a step, a plurality of steps are connected together by a step chain to form a conveying chain ring, the conveying chain ring is wound around two drive shafts along the guide rail, and the guide wheels of the steps are slidably matched with the guide rail; a driving unit, the driving unit is connected to the drive shaft in a transmission manner, and the driving unit, the guide rail and the two drive shafts are all provided with vibration sensors; a speed regulating unit, the speed regulating unit is used to control the operating speed of the driving unit, and each vibration sensor is electrically connected to the speed regulating unit. The vibration conditions of the above components are detected in real time. When a component has abnormal vibration, the speed regulating unit adjusts the operating speed of the driving unit, thereby effectively avoiding the resonance of the escalator, improving the safety of use, and also extending the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of escalator devices, and in particular to an escalator vibration reduction system and an escalator vibration reduction method. Background Art

[0002] With the development of society, escalators or moving walkways are widely used in various public places. When the escalator is in operation, the steps slide along the guide rails under the action of the drive unit, and the passengers stand on the steps and move forward synchronously with the steps. Due to various reasons such as the use environment and manufacturing precision, the escalator will vibrate during operation. The vibration will affect the comfort of passengers riding the escalator, bring noise, and affect the service life of the escalator. In particular, when resonance occurs, there will be a greater safety hazard. Summary of the invention

[0003] Aiming at the problem that resonance will bring great potential safety hazards when an escalator is running, the present invention proposes an escalator vibration reduction system and an escalator vibration reduction method to effectively avoid the resonance of the escalator, improve the safety of use, and also extend the service life.

[0004] An escalator vibration reduction system, comprising:

[0005] A guide rail, wherein both ends of the guide rail are provided with a bearing support seat, and the drive shaft is rotatably arranged on the bearing support seat;

[0006] Steps, wherein a plurality of the steps are connected together by step chains to form a conveyor chain loop, the conveyor chain loop is wound around the two driving shafts along the guide rail, and the guide wheels of the steps are slidably matched with the guide rail;

[0007] A driving unit, the driving unit is drivingly connected to the driving shaft, and vibration sensors are provided on the driving unit, the guide rail and the two driving shafts;

[0008] A speed regulating unit is used to control the operating speed of the driving unit, and each of the vibration sensors is electrically connected to the speed regulating unit.

[0009] The above scheme provides an escalator vibration reduction system, by arranging vibration sensors on the drive unit, the guide rail and the two drive shafts, the vibration conditions of the above components are detected in real time. When a component has abnormal vibration, the speed regulation unit adjusts the operating speed of the drive unit, thereby effectively avoiding resonance of the escalator, improving the safety of use, and also extending the service life.

[0010] In one embodiment, the driving unit includes a main base, and a main motor and a reducer arranged on the main base, the main motor is drivingly connected to the reducer, the output shaft of the reducer is drivingly connected to the drive shaft, the vibration sensor is provided on the main base, the main motor and the output shaft of the reducer, and the speed regulation unit is electrically connected to the main motor.

[0011] In one embodiment, the speed regulating unit includes a frequency converter, and the frequency converter is electrically connected to the driving unit for controlling the operating speed of the driving unit.

[0012] In one embodiment, the escalator vibration reduction system also includes a diagnostic unit, which is electrically connected to each of the vibration sensors. The diagnostic unit is used to diagnose whether the change trend of the vibration frequency and vibration amplitude detected by each of the vibration sensors is abnormal, and the diagnostic unit is electrically connected to the speed regulation unit.

[0013] In one embodiment, the escalator vibration reduction system also includes a step chain extension detection device, which is used to detect the extension data of the step chain. The step chain extension detection device is electrically connected to the diagnostic unit, and the diagnostic unit is also used to diagnose whether the change trend of the extension data of the step chain is abnormal.

[0014] In one of the embodiments, the step chain extension detection device includes a reading unit and a magnetic strip, the magnetic strip is arranged along the extension direction of the step chain, the reading unit and the magnetic strip are arranged corresponding to read the data on the magnetic strip, one of the detection reading unit and the magnetic strip is connected to the tensioning device of the step chain, and the other is connected to the escalator truss of the escalator vibration reduction system, and the reading unit is electrically connected to the diagnostic unit.

[0015] An escalator vibration reduction method, the escalator comprising:

[0016] A guide rail, wherein both ends of the guide rail are provided with a bearing support seat, and the drive shaft is rotatably arranged on the bearing support seat;

[0017] Steps, wherein a plurality of the steps are connected together by step chains to form a conveyor chain loop, the conveyor chain loop is wound around the two driving shafts along the guide rail, and the guide wheels of the steps are slidably matched with the guide rail;

[0018] The driving unit is drivingly connected to the driving shaft;

[0019] The escalator vibration reduction method comprises the following steps:

[0020] Acquiring vibration data of the guide rail, the drive unit and the drive shaft;

[0021] When the variation trend of the vibration data of the guide rail, the drive unit or the drive shaft is abnormal, the operating speed of the drive unit is adjusted.

[0022] The above scheme provides an escalator vibration reduction method, which obtains the vibration data of the guide rail, the drive unit and the drive shaft to determine whether the vibration of the escalator is normal. If the change trend of the vibration data is abnormal, that is, when the vibration data fluctuates abnormally, there may be a resonance problem. At this time, the operating speed of the drive unit is adjusted, thereby adjusting the stress and vibration conditions of each component of the escalator, effectively avoiding the occurrence of resonance, improving the safety of use, and also extending the service life.

[0023] In one embodiment, the escalator vibration reduction method further includes the following steps:

[0024] The extension data of the step chain is acquired, and when the change trend of the extension data of the step chain is abnormal, the operating speed of the driving unit is adjusted.

[0025] In one of the embodiments, the vibration data includes vibration amplitude and vibration frequency.

[0026] In one embodiment, adjusting the operating speed of the driving unit includes increasing or decreasing the operating speed of the driving unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 Schematic diagram of the structure of the escalator vibration reduction system according to this embodiment;

[0030] Figure 2 for Figure 1 Enlarged view of the middle AA;

[0031] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0032] Figure 4 for Figure 3 a left side view of the structure shown;

[0033] Figure 5 for Figure 3 A top view of the step extension detection device in the structure shown;

[0034] Figure 6 The escalator vibration reduction method described in this embodiment;

[0035] Figure 7 This is another embodiment of the escalator vibration reduction method.

[0036] Description of reference numerals:

[0037] 10. Escalator shock absorption system; 11. Escalator; 12. Guide rail; 121. Drive shaft; 13. Step; 131. Guide wheel; 14. Step chain; 141. Tensioning device; 15. Drive unit; 151. Main engine base; 152. Main motor; 153. Reducer; 16. Speed ​​regulating unit; 17. Diagnostic unit; 18. Step chain extension detection device; 181. Reading unit; 182. Magnetic strip; 20. Vibration sensor. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] like Figure 1 As shown, in one embodiment, an escalator vibration reduction system 10 is provided, comprising:

[0040] A guide rail 12, wherein both ends of the guide rail 12 are provided with bearing support seats, and the drive shaft 121 rotatably disposed on the bearing support seats;

[0041] The steps 13 are connected together by a step chain 14 to form a conveyor chain loop, and the conveyor chain loop is wound around the two drive shafts 121 along the guide rail 12. Figure 2 As shown, the guide wheel 131 of the step 13 is slidably matched with the guide rail 12;

[0042] The driving unit 15 is in driving connection with the driving shaft 121 .

[0043] When the driving unit 15 is started, the driving shaft 121 is driven to rotate, the conveying chain circle on the driving shaft 121 rotates, the guide wheel 131 slides on the guide rail 12, and the steps 13 slide along the guide rail 12 to move the passengers.

[0044] Specifically, Figure 1 As shown, the driving shaft 121 located at the upper part of the escalator 11 is a driving shaft, and the driving unit 15 is connected to the driving shaft in a transmission manner. The driving shaft 121 located at the lower part of the escalator 11 is a driven shaft, and when the driving shaft rotates, the driven shaft rotates with the action of the conveying chain ring.

[0045] Furthermore, if Figure 1 and Figure 2 As shown, the driving unit 15, the guide rail 12 and the two driving shafts 121 are all provided with vibration sensors 20. The vibration sensors 20 are used to detect the vibration conditions of the above components.

[0046] Furthermore, if Figure 1 As shown, the escalator 11 vibration reduction system further includes a speed regulating unit 16 , and the speed regulating unit 16 is used to control the operating speed of the driving unit 15 , and each of the vibration sensors 20 is electrically connected to the speed regulating unit 16 .

[0047] The above scheme provides an escalator 11 vibration reduction system by arranging vibration sensors 20 on the drive unit 15, the guide rail 12 and the two drive shafts 121 to detect the vibration conditions of the above components in real time. When a component has abnormal vibration, the speed regulation unit 16 adjusts the operating speed of the drive unit 15, thereby effectively avoiding resonance of the escalator 11, improving the safety of use, and also extending the service life.

[0048] In general, if the escalator 11 operates normally, the life of each component should be gradually decaying in a regular manner, and the vibration of each component should be within a relatively stable range. If a vibration sensor 20 detects a sudden change in the vibration data of a component, it means that resonance may exist. At this time, the rotation speed of the drive unit 15 is adjusted to adjust the movement speed and vibration of each component, so as to avoid continuous resonance that damages the service life of each component, while improving the safety of the escalator 11.

[0049] Furthermore, if Figure 1As shown, in one embodiment, the driving unit 15 includes a main base 151, and a main motor 152 and a reducer 153 disposed on the main base 151, the main motor 152 is in transmission connection with the reducer 153, and the output shaft of the reducer 153 is in transmission connection with the driving shaft 121. The vibration sensor 20 is disposed on the main base 151, the main motor 152, and the output shaft of the reducer 153, and the speed regulating unit 16 is electrically connected to the main motor 152.

[0050] The vibration sensors 20 provided on the driving unit 15 are used to detect the vibration of the main base 151, the main motor 152 and the output shaft of the reducer 153. If the vibration of the above components is abnormal, the speed regulating unit 16 adjusts the speed of the main motor 152 to avoid resonance.

[0051] Specifically, Figure 1 and Figure 2 As shown, the guide rail 12 is a plate with a U-shaped cross section, the guide wheel 131 of the step 13 is slidably arranged on the inner side of the guide rail 12 , and the vibration sensor 20 on the guide rail 12 is arranged on the outer side of the guide rail 12 .

[0052] Specifically, in one embodiment, the speed regulating unit 16 includes a frequency converter, which is electrically connected to the driving unit 15 and is used to control the operating speed of the driving unit 15 .

[0053] When the vibration data detected by the vibration sensor 20 indicates that a component has abnormal vibration, the frequency converter modulates the frequency to change the rotation speed of the drive unit 15. Specifically, in one embodiment, the drive unit 15 includes the main motor 152, and the frequency converter is electrically connected to the main motor 152. The frequency converter can modulate the frequency to change the rotation speed of the main motor 152.

[0054] More specifically, the vibration data detected by the vibration sensor 20 includes vibration frequency and vibration amplitude. When the escalator 11 is operating normally, the vibration frequency and vibration amplitude of each component should fluctuate within a relatively stable range. If the vibration frequency or vibration amplitude fluctuates abnormally, it indicates that resonance may exist. At this time, the operating speed of the drive unit 15 is adjusted to change the stress and operating conditions of each component, thereby avoiding resonance.

[0055] Furthermore, if Figure 1As shown, in one embodiment, the escalator vibration reduction system 10 also includes a diagnostic unit 17, and the diagnostic unit 17 is electrically connected to each of the vibration sensors 20. The diagnostic unit 17 is used to diagnose whether the change trend of the vibration frequency and vibration amplitude detected by each of the vibration sensors 20 is abnormal. The diagnostic unit 17 is electrically connected to the speed regulation unit 16.

[0056] The vibration data detected by each vibration sensor 20 is first transmitted to the diagnostic unit 17, and the diagnostic unit 17 determines whether the change trend of the vibration frequency and vibration amplitude of each component is abnormal based on the received data. If an abnormality is found, the diagnostic unit 17 sends a signal to the speed regulation unit 16, and the speed regulation unit 16 controls the driving unit 15 to adjust the operating speed.

[0057] Specifically, in one embodiment, the diagnostic unit 17 is electrically connected to the inverter. When the diagnostic unit 17 diagnoses that a component has abnormal vibration, the diagnostic unit 17 sends a signal to the inverter. After receiving the signal, the inverter controls the main motor 152 to change the speed.

[0058] Further, in one embodiment, if Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the escalator vibration reduction system 10 further includes a step chain extension detection device 18, which is used to detect the extension data of the step chain 14. During the use of the escalator 11, due to the wear of the shaft pin or the shaft sleeve on the step chain 14, or the occurrence of other losses, the step chain 14 will be extended over time. In order to ensure that the step chain 14 is in a tensioned state, a tensioning device 141 will be provided on the escalator 11. The tensioning device 141 will flexibly adjust the tensioning force according to the elongation of the step chain 14 to ensure that the step chain 14 is in a tensioned state.

[0059] The step extension detection device 18 is electrically connected to the diagnosis unit 17 , and the step extension detection device 18 can transmit the detected extension data of the step chain 14 to the diagnosis unit 17 , and the diagnosis unit 17 is also used to diagnose whether the change trend of the extension data of the step chain 14 is abnormal.

[0060] When the data received by the diagnosis unit 17 show that the extended length of the step 13 changes nonlinearly, the diagnosis unit 17 sends a signal to the speed regulating unit 16 to adjust the operating speed of the driving unit 15 .

[0061] Specifically, in one embodiment, Figures 3 to 5As shown, the step chain extension detection device 18 includes a reading unit 181 and a magnetic stripe 182, the magnetic stripe 182 is arranged along the extension direction of the step chain 14, and the reading unit 181 and the magnetic stripe 182 are arranged correspondingly for reading data on the magnetic stripe 182. One of the detection reading unit 181 and the magnetic stripe 182 is connected to the tensioning device 141 of the step chain 14, and the other is connected to the escalator 11 truss of the escalator 11 vibration reduction system. When the extension length of the step chain 14 changes, the position corresponding to the magnetic stripe 182 and the reading unit 181 changes, and the reading unit 181 reads different data. The reading unit 181 is electrically connected to the diagnosis unit 17.

[0062] The reading unit 181 indirectly reflects the extension length of the current step chain 14 by reading the data on the magnetic stripe 182. The data on the magnetic stripe 182 read by the reading unit 181 can be transmitted to the diagnosis unit 17. The diagnosis unit 17 sorts and analyzes the received signal. If the result shows that the received magnetic stripe 182 data has a nonlinear abnormality, the diagnosis unit 17 sends a signal to the speed regulating unit 16 to adjust the operating speed of the driving unit 15.

[0063] More specifically, in one embodiment, when the speed regulating unit 16 adjusts the operating speed of the driving unit 15, the operating speed of the operating unit is adjusted within the range of ±5% of the rated speed. By adjusting the speed within a small range, a more suitable operating speed is found to eliminate resonance.

[0064] Furthermore, in another embodiment, a vibration reduction method for an escalator 11 is provided, which is applicable to the escalator vibration reduction system 10 described in any of the above embodiments.

[0065] The escalator 11 in the escalator 11 vibration reduction method comprises:

[0066] A guide rail 12, wherein both ends of the guide rail 12 are provided with bearing support seats, and the drive shaft 121 rotatably disposed on the bearing support seats;

[0067] A step 13, wherein a plurality of the steps 13 are connected together by a step chain 14 to form a conveyor chain loop, wherein the conveyor chain loop is wound around the two driving shafts 121 along the guide rail 12, and a guide wheel 131 of the step 13 is slidably matched with the guide rail 12;

[0068] The driving unit 15 is in transmission connection with the driving shaft 121;

[0069] Specifically, Figure 6 As shown, the escalator 11 vibration reduction method comprises the following steps:

[0070] Acquiring vibration data of the guide rail 12, the drive unit 15 and the drive shaft 121;

[0071] When the variation trend of the vibration data of the guide rail 12 , the driving unit 15 or the driving shaft 121 is abnormal, the operating speed of the driving unit 15 is adjusted.

[0072] The above scheme provides a vibration reduction method for an escalator 11, which determines whether the vibration of the escalator 11 is normal by obtaining the vibration data of the guide rail 12, the drive unit 15 and the drive shaft 121. If the change trend of the vibration data is abnormal, that is, when the vibration data fluctuates abnormally, there may be a resonance problem. At this time, the operating speed of the drive unit 15 is adjusted, thereby adjusting the stress and vibration conditions of each component of the escalator 11, effectively avoiding the occurrence of resonance, improving the safety of use, and also extending the service life.

[0073] Further, in one embodiment, if Figure 7 As shown, the escalator 11 vibration reduction method further includes the following steps:

[0074] The extension data of the step chain 14 is acquired, and when the change trend of the extension data of the step chain 14 is abnormal, the operating speed of the driving unit 15 is adjusted.

[0075] Generally, the extension data of the step chain 14 changes linearly. If the acquired data shows that the extension of the step chain 14 changes abnormally in a nonlinear manner, the operating speed of the driving unit 15 is adjusted to reduce the wear of the step chain 14 and eliminate the noise generated by the step chain 14 .

[0076] Specifically, obtaining the extension data of the step chain 14 specifically includes the following steps:

[0077] The data of the magnetic stripe 182 read by the reading unit 181 is obtained.

[0078] When the change trend of the data read on the magnetic stripe 182 is abnormal, the operating speed of the driving unit 15 is adjusted.

[0079] More specifically, in one embodiment, the vibration data includes vibration amplitude and vibration frequency. The vibration amplitude and vibration frequency are used to reflect whether the vibration is abnormal.

[0080] Further, in one embodiment, adjusting the operating speed of the driving unit 15 includes increasing or decreasing the operating speed of the driving unit 15 .

[0081] In other words, when the acquired data indicates that an abnormality exists, the operating speed of the drive unit 15 is adjusted within a certain range until the vibration is eliminated. Adjustment within a certain range includes both acceleration and deceleration.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0087] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An escalator vibration reduction system, characterized in that: include: A guide rail, wherein both ends of the guide rail are provided with a bearing support seat, and a drive shaft rotatably arranged on the bearing support seat; Steps, wherein a plurality of the steps are connected together by step chains to form a conveyor chain loop, the conveyor chain loop is wound around the two driving shafts along the guide rail, and the guide wheels of the steps are slidably matched with the guide rail; A driving unit, wherein the driving unit is drivingly connected to the driving shaft, and vibration sensors are provided on the driving unit, the guide rail and the two driving shafts; the vibration data detected by the vibration sensor includes a vibration frequency and a vibration amplitude; A speed regulating unit, the speed regulating unit is used to control the operating speed of the driving unit, and each of the vibration sensors is electrically connected to the speed regulating unit; and A diagnostic unit, wherein the diagnostic unit is electrically connected to each of the vibration sensors, and is used to diagnose whether a change trend of the vibration frequency and vibration amplitude detected by each of the vibration sensors is abnormal, and the diagnostic unit is electrically connected to the speed regulation unit.

2. The escalator vibration reduction system according to claim 1, characterized in that: The driving unit includes a main base, and a main motor and a reducer arranged on the main base, the main motor is drivingly connected to the reducer, the output shaft of the reducer is drivingly connected to the driving shaft, the vibration sensor is arranged on the main base, the main motor and the output shaft of the reducer, and the speed regulation unit is electrically connected to the main motor.

3. The escalator vibration reduction system according to claim 1, characterized in that: The speed regulating unit includes a frequency converter, which is electrically connected to the driving unit and is used to control the operating speed of the driving unit.

4. The escalator vibration reduction system according to claim 1, characterized in that: The escalator vibration reduction system also includes a step chain extension detection device, which is used to detect the extension data of the step chain. The step chain extension detection device is electrically connected to the diagnostic unit, and the diagnostic unit is also used to diagnose whether the change trend of the extension data of the step chain is abnormal.

5. The escalator vibration reduction system according to claim 4, characterized in that: The step chain extension detection device includes a reading unit and a magnetic strip, the magnetic strip is arranged along the extension direction of the step chain, the reading unit and the magnetic strip are arranged correspondingly for reading data on the magnetic strip, one of the reading unit and the magnetic strip is connected to the tensioning device of the step chain, and the other is connected to the escalator truss of the escalator vibration reduction system, and the reading unit is electrically connected to the diagnostic unit.

6. A method for reducing vibration of an escalator, characterized in that: The escalator comprises: A guide rail, wherein both ends of the guide rail are provided with a bearing support seat, and a drive shaft rotatably arranged on the bearing support seat; Steps, wherein a plurality of the steps are connected together by step chains to form a conveyor chain loop, the conveyor chain loop is wound around the two driving shafts along the guide rail, and the guide wheels of the steps are slidably matched with the guide rail; A driving unit, the driving unit is drivingly connected to the driving shaft; The escalator vibration reduction method comprises the following steps: Acquiring vibration data of the guide rail, the drive unit and the drive shaft; When the variation trend of the vibration data of the guide rail, the drive unit or the drive shaft is abnormal, the operating speed of the drive unit is adjusted.

7. The escalator vibration reduction method according to claim 6, characterized in that: The escalator vibration reduction method also includes the following steps: The extension data of the step chain is acquired, and when the change trend of the extension data of the step chain is abnormal, the operating speed of the driving unit is adjusted.

8. The escalator vibration reduction method according to claim 7 or 6, characterized in that: The vibration data includes vibration amplitude and vibration frequency.

9. The escalator vibration reduction method according to claim 7 or 6, characterized in that: Adjusting the operating speed of the driving unit includes increasing or decreasing the operating speed of the driving unit.

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