CN111348521B - Elevator operation control method and system - Google Patents
Elevator operation control method and system Download PDFInfo
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- CN111348521B CN111348521B CN202010177687.1A CN202010177687A CN111348521B CN 111348521 B CN111348521 B CN 111348521B CN 202010177687 A CN202010177687 A CN 202010177687A CN 111348521 B CN111348521 B CN 111348521B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/041—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including active attenuation system for shocks, vibrations
- B66B7/042—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including active attenuation system for shocks, vibrations with rollers, shoes
- B66B7/043—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes including active attenuation system for shocks, vibrations with rollers, shoes using learning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
- B66B7/046—Rollers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Elevator Control (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator operation control method and system, belonging to the technical field of elevators, wherein the method comprises the following steps: s1, acquiring the running speed of an elevator body; s2, acquiring the natural frequency of the elevator body; s3, processing according to the running speed and the natural frequency to obtain an optimal distance value; s4, adjusting the distance between the guide parts in each guide assembly according to the optimal distance value; the system comprises: the device comprises a first acquisition module, a second acquisition module, a processing module and a control module; the beneficial effects are that: the distance between each gyro wheel of the guide shoe of gyro wheel is adjusted dynamically through current operating speed of real-time detection elevator body and natural frequency, and then weakens the vibration on the horizontal direction that the guide rail defect arouses elevator body under to different motion states by a wide margin even eliminates.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator operation control method and an elevator operation control system.
Background
When the elevator moves along the vertical direction, the comfort of riding of a user is ensured by a corresponding guide device, guide rails in the guide device are formed by splicing, step tolerance can inevitably occur at the joint of each section of guide rail, and the problems of local defects, local distortion, interval tolerance and the like can often exist on the working surface of the guide rail, so that the vibration of the elevator car in the horizontal direction is further aggravated. Along with the increasing of building floors in recent years, the running distance and the running speed of an elevator matched with the building are increased, and the influence of the guide rail problem on the vibration of the elevator car is increased more and more.
The elevator is generally divided into three stages of acceleration motion, uniform motion and deceleration motion in the running process, and for the elevator with higher speed in the uniform motion stage, the longer the duration of the acceleration motion stage and the deceleration motion stage is, and the longer the running distance is. The magnitude of vibration generated by the unevenness of the guide rail on the elevator body is related to the current running speed and the current natural frequency of the elevator body, the running speed is related to the current motion stage of the elevator body, the natural frequency is influenced by the mass distribution of various main parts and the elastic rigidity of the vibration isolating piece, and part of parameters can change in real time, for example, the load in the elevator car can change along with the passing of passengers in and out of the elevator car, and the weight of a compensating steel wire rope and a traveling cable on the elevator car side can be different along with the change of the lifting height of the elevator. When the elevator passing through the same guide rail unevenness is at different running speeds and/or different natural frequencies, the generated vibration is different, the guide assembly capable of reducing the vibration of the elevator in the horizontal direction at the uniform speed stage of the elevator cannot achieve the same vibration reduction effect at the acceleration and deceleration stage of the elevator, the guide assembly capable of reducing the vibration of the elevator in the horizontal direction when the elevator is fully loaded, and the guide assembly capable of reducing the vibration of the elevator in the horizontal direction when the elevator is unloaded cannot achieve the same vibration reduction effect.
Disclosure of Invention
According to the above problems in the prior art, an elevator operation control method and system are provided, in which the distance between the guide parts in the elevator guide assembly is dynamically adjusted by detecting and acquiring the current operation speed and natural frequency of the elevator body, so as to substantially weaken or even eliminate the horizontal vibration caused by the defect of the guide rail on the elevator body in different motion states.
The technical scheme specifically comprises the following steps:
an elevator operation control method is applied to an elevator, wherein a plurality of guide assemblies are arranged in the elevator, each guide assembly comprises a plurality of guide parts, and the control method comprises the following steps:
s1, acquiring the running speed of an elevator body;
s2, acquiring the natural frequency of the elevator body;
s3, processing according to the running speed and the natural frequency to obtain an optimal distance value;
and S4, adjusting the distance between the guide parts in each guide assembly according to the optimal distance value.
Preferably, each of the guiding assemblies includes two guiding portions, and in step S3, the optimal distance value is obtained according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
Preferably, each of the guiding assemblies includes three guiding portions, and then in step S3, the optimal distance value is obtained according to the following formula:
wherein, the first and the second end of the pipe are connected with each other,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
Preferably, wherein the step S2 further comprises:
step S200, acquiring the load in the elevator body;
step S201, obtaining a variation parameter in the elevator body, which varies with the position of the elevator body;
and S202, processing according to the load, the change parameters and fixed parameters which are fixed and unchangeable in the elevator body to obtain the natural frequency of the elevator body.
Preferably, wherein the step S2 further comprises:
step S210, providing a vibration exciting force covering a preset frequency range for the elevator body;
step S211, detecting the excitation vibration generated by the elevator body under the vibration excitation force;
step S212, obtaining a transfer function of vibration input-output of the elevator body according to the vibration exciting force and the exciting vibration processing, and outputting the peak frequency of the transfer function as the natural frequency; or
Outputting a peak frequency of the excitation vibration as the natural frequency.
An elevator operation control system applied to an elevator, wherein a plurality of guide assemblies are arranged in the elevator, each guide assembly comprises a plurality of guide parts, and the control system comprises:
the first acquisition module is used for acquiring the running speed of the elevator body;
the second acquisition module is used for acquiring the natural frequency of the elevator body;
the processing module is connected with the first acquisition module and the second acquisition module and used for processing according to the running speed and the natural frequency to obtain an optimal distance value;
and the control module is connected with the processing module and the guide assemblies and is used for adjusting the distance between the guide parts in each guide assembly according to the optimal distance value.
Preferably, each of the guide assemblies includes two guide portions, and the processing module obtains the optimal distance value according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
Preferably, each of the guiding assemblies includes three guiding portions, and the processing module obtains the optimal distance value according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
Preferably, the second obtaining module further comprises:
a load acquisition unit for acquiring a load in the elevator body;
the parameter acquisition unit is used for acquiring variation parameters of the elevator body along with the position variation of the elevator body;
the storage unit is used for storing fixed parameters which are fixed and unchangeable in the elevator body;
and the first processing unit is connected with the load acquisition unit, the parameter acquisition unit and the storage unit and used for processing according to the load, the variation parameters and the fixed parameters to obtain the natural frequency of the elevator body.
Preferably, the second acquiring module further comprises:
the excitation unit is connected with the elevator body and is used for providing a vibration excitation force covering a preset frequency range for the elevator body;
the detection unit is connected with the elevator body and is used for detecting the excitation vibration generated by the elevator body under the vibration excitation force;
the second processing unit is connected with the excitation unit and the detection unit and used for obtaining a transfer function of vibration input-output of the elevator body according to the vibration excitation force and the excitation vibration processing and outputting the peak frequency of the transfer function as the natural frequency; or
Outputting a peak frequency of the excitation vibration as the natural frequency.
The beneficial effects of the above technical scheme are that:
the distance between each guide part in the elevator guide assembly is dynamically adjusted by detecting and acquiring the current running speed and natural frequency of the elevator body, so that the vibration in the horizontal direction caused by the defects of guide rails to the elevator body in different motion states is greatly weakened or even eliminated.
Drawings
Fig. 1 is a flow chart of an elevator operation control method in a preferred embodiment of the present invention;
FIG. 2 is a flow chart illustrating the sub-steps of step S2 according to the preferred embodiment of the present invention;
FIG. 3 is a schematic flow chart of the substeps of step S2 according to another preferred embodiment of the present invention;
fig. 4 is a schematic diagram of an elevator operation control system in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second obtaining module according to a preferred embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second obtaining module according to another preferred embodiment of the present invention;
fig. 7 is a diagrammatic illustration of the guide assembly in cooperation with an elevator in an embodiment of two guides;
fig. 8 is a diagrammatic view of the guide assembly in cooperation with an elevator in an embodiment with three guides.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Example one
In the embodiment, the guide component single-side moving part is provided with two guide parts, and the guide parts are rollers. The running surface of the guide rail 1 is in contact with the roller. The spacing between the two rollers, denoted L (t), as shown in fig. 7, can be adjusted accordingly by controlling the corresponding movement mechanism on the guide assembly to adjust the spacing between the two rollers 101 and 102. When the working surface of the guide rail is uneven, the upper roller and the lower roller sequentially pass through the uneven part, each roller overcomes the elastic force of the spring part successively and moves forcedly along the horizontal direction, and the elastic force of the spring part acts on the elevator body in the process to enable the elevator body to vibrate. For one uneven part of the working surface of the guide rail, the pair of rollers sequentially and forcedly move, and the elevator body is impacted twice. By adjusting the time interval of the two impacts, the amplitude of the elevator body can be reduced or even eliminated.
As shown in fig. 7, assuming that there is a step with a height Δ X in the rail joint, the upper roller 101 and the lower roller 102 pass through the step successively, and the displacement response X of the elevator body in the horizontal direction can be obtained based on the above information 1 (t), the results are shown in formula 1. Wherein, ω is n And (t) is the natural frequency of free vibration of the elevator body in the horizontal direction, and delta t is the time difference of two rollers passing through the step. Assuming that the elevator running speed is v (t), Δ t = L (t)/v (t). Can see, X 1 (t) has an amplitude of
When formula 2 is satisfied, X 1 The amplitude of (t) is always 0, which means that the car-side horizontal oscillations caused by the rail joint steps can be completely eliminated.
As shown in fig. 7, in another case, when there is a protrusion with a height Δ Y on the surface of the guide rail (the protrusion is usually caused by a defect existing in the same guide rail), the upper and lower rollers pass through the protrusion in sequence, and the displacement response Y (t) of the car side in the horizontal direction can be obtained according to the above information, and the result is shown in formula 3. Wherein, delta tau is the time required by a single roller to pass through a bulge and is equivalent to the time required by the single roller to pass through the bulgeDuration of the square pulse excitation. In a visible, Y 1 (t) has an amplitude of
Likewise, when formula 2 is satisfied, Y 1 The amplitude of (t) is always 0, which means that the car-side horizontal vibrations caused by the protrusions of the guide rail surface can be completely eliminated. The situation when there is a concave defect on the surface of the guide rail is similar to that when there is a convex object, and will not be described herein.
According to the analysis, in the whole running process of every acceleration, constant speed and deceleration of the elevator, if the distance L (t) between the first guide part and the second guide part and the running speed v (t) of the elevator are always close to or even completely satisfy the relation shown in the formula 2, the vibration of the elevator car side in the horizontal direction caused by uneven guide rails is greatly weakened or even eliminated. Can be based on omega n And (t), v (t) and other parameters are calculated to obtain a corresponding ideal L (t) value L' (t), namely an optimal distance value, and the distance between the guide parts is dynamically adjusted by controlling corresponding motion mechanisms in the guide assembly, so that the vibration of the elevator in the horizontal direction is reduced to the maximum extent.
Further, when the free vibration frequencies of the elevator body in the front-rear direction and in the left-right direction are different, i.e., ω in formula 1 n Depending on the direction of vibration, the guide assembly cooperating with the three working surfaces of the guide rail then needs to be of a differentiated design. Specifically, assume that the free vibration frequency of the elevator body in the X direction is ω nx Free vibration frequency in Y direction is ω ny The distance between the upper and lower rollers of the rolling guide shoes corresponding to the first working surface and the second working surface of the guide rail is L x (t), the distance between the upper and lower rollers of the rolling guide shoe corresponding to the third working surface of the guide rail is L y (t) of (d). Then let L x (t) satisfies the formula 4, wherein L y (t) satisfies equation 5, so that vibration of the elevator in the X-direction and the Y-direction caused by unevenness of the guide rails can be reduced at the same time.
In this embodiment, the running speed of the elevator body is firstly obtained, the running speed may be the real-time running speed of the elevator body, the obtaining mode may be obtained by measurement of a speed measuring device installed in the elevator, or may be obtained by indirect calculation by collecting information such as acceleration and absolute height of the elevator body. Secondly, the natural frequency of the elevator body is obtained. There are two methods for acquiring the natural frequency, one method includes: step S200, acquiring the load in the elevator body; step S201, obtaining a variation parameter which varies with the position of the elevator body in the elevator body; and S202, processing according to the load, the variation parameters and the fixed parameters which are fixed and unchangeable in the elevator body to obtain the natural frequency of the elevator body. The load of the elevator body can be obtained through a weighing device arranged at the bottom of the elevator body, and the current position information of the elevator body in the hoistway is obtained through a distance measuring device, so that the mass parameters of parts such as a compensating rope, a traveling cable and the like which are carried by the side of the elevator body and change along with the position can be obtained. The fixed parameters are information such as mass, elastic rigidity and the like of each main part in the elevator, which do not change along with time. Obtaining the natural frequency omega of the elevator body according to the load, the variation parameter and the fixed parameter processing n (t), the natural frequency ω n And (t) updating after the elevator is closed every time, and also updating in real time in the whole running process of the elevator. The second method comprises the following steps: step S210, providing a vibration exciting force covering a preset frequency range for the elevator body; step S211, detecting excitation vibration generated by the elevator body under the vibration excitation force; step S212, obtaining a transfer function of vibration input-output of the elevator body according to the vibration exciting force and the exciting vibration processing, and outputting the peak frequency of the transfer function as the natural frequency; or outputs the peak frequency of the excitation vibration as the natural frequency. Wherein, in the second method,a vibration sensor and a vibration exciter are used for replacing a weighing device. The vibration exciter can output vibration exciting force covering a certain frequency range and is used for exciting the side vibration of the elevator body. The vibration sensor is used for measuring the car side vibration. Determining the natural frequency omega of the free vibration of the elevator car by the peak frequency of the transfer function of the vibration input-output or the peak frequency of the vibration response n (t) of (d). Thirdly, processing by using a formula 2 to obtain an optimal distance value L' (t) according to the running speed and the natural frequency; finally, the distance between the guide parts in each guide assembly is adjusted according to the optimal distance value to control the guide parts to be kept at the optimal distance value at any time, so that the vibration of the elevator in the horizontal direction is reduced or even eliminated.
Example two
As shown in fig. 8, in the present embodiment, the guide single-side moving member has three guide portions, i.e., three rollers. The running surface of the guide rail is in contact with the roller 301. The top roller is connected with a primary connecting rod 303 through a roller shaft 302, the middle roller and the bottom roller are connected with a secondary connecting rod 303 'through the roller shaft 302, and the secondary connecting rod 303' is connected with the primary connecting rod 303 through a secondary connecting rod shaft 304 'positioned in the center of the secondary connecting rod 303'. The primary link 303 is connected to a push rod 305 via a primary link shaft 304. The distance from the link shaft 304 to the roller shaft 302 of the top roller is twice the distance from the link shaft 304 to the secondary link shaft 304', thereby ensuring that the normal forces on the three rollers 301 from the rail face are equal. The distance between the top roller shaft and the middle roller shaft and the distance between the middle roller shaft and the bottom roller shaft are both L (t), and can be correspondingly adjusted according to the control signal. The push rod 305 is connected to the elevator body by a spring 306.
When the working surface of the guide rail is uneven, the three rollers 301 sequentially pass through the uneven part, and each roller 301 overcomes the elastic force of the spring 306 to move along the horizontal direction in a forced mode. When the top roller moves horizontally, the primary connecting rod 303 is driven to swing around the secondary connecting rod shaft 304'; when the middle roller and the bottom roller move horizontally, the second-stage connecting rod 303' is driven to swing around the roller shaft at the other end of the connecting rod, and therefore the first-stage connecting rod 303 is driven to swing around the top roller shaft; in either case, the push rod 305 will be forced to move in a horizontal direction. In the process the elastic force of the spring 306 acts on the elevator body causing it to vibrate. For one uneven working surface of the guide rail 1, the three rollers 301 are forced to move successively, and the elevator body is impacted for three times. By adjusting the time interval of three impacts, the amplitude of the elevator body side can be reduced or even eliminated.
Assuming that a step with the height of delta X exists at the guide rail joint, the three rollers 301 pass through the step successively, and the displacement response X of the elevator body along the horizontal direction can be obtained according to the information 2 (t), the results are shown in formula 6. Wherein, ω is n (t) is the natural frequency of the free vibration of the elevator body along the horizontal direction, and delta t is the time difference of the adjacent rollers passing through the steps. Assuming that the elevator running speed is v (t), Δ t = L (t)/v (t). It can be seen that, when formula 7 is satisfied, X 2 The amplitude of (t) is always 0, and the horizontal vibration of the elevator body side caused by the guide rail joint steps can be completely eliminated.
When the surface of the guide rail has the bulge with the height delta Y, the three rollers 301 pass through the bulge in sequence, and the displacement response Y of the elevator body along the horizontal direction can be obtained according to the information 2 (t), the results are shown in formula 8. Where Δ τ is the time required for a single wheel to pass over a protrusion, corresponding to the duration of the square pulse excitation. It can be seen that, when formula 7 is satisfied, Y 2 The amplitude of (t) is always 0, which means that horizontal vibrations of the elevator body caused by protrusions on the surface of the guide rails can be completely eliminated. The situation when the concave defect exists on the surface of the guide rail is similar to the situation when the convex object exists, and the description is omitted.
Since the working principle of the embodiment is similar to that of the first embodiment, the elevator operation control method of the embodiment can also achieve the effect of greatly reducing the side vibration of the elevator body.
EXAMPLE III
The embodiment discloses an elevator operation control system, is applied to the elevator, wherein is provided with a plurality of direction subassemblies in the elevator, includes a plurality of guide parts in every direction subassembly, and control system includes: the first acquisition module 1 is used for acquiring the running speed of the elevator body; the second acquisition module 2 is used for acquiring the natural frequency of the elevator body; the processing module 3 is connected with the first acquisition module 1 and the second acquisition module 2 and is used for processing according to the running speed and the natural frequency to obtain an optimal distance value; and the control module 4 is connected with the processing module 3 and the guide assemblies and is used for adjusting the distance between the guide parts in each guide assembly according to the optimal distance value. The formula of the processing module 3 based on two guiding portions and the formula of the processing module based on three guiding portions are shown in the first and second embodiments, which are not described herein again.
Specifically, in this embodiment, the second obtaining module 2 further includes:
a load acquisition unit 20 for acquiring a load in the elevator body;
the parameter acquiring unit 21 is used for acquiring variation parameters of the elevator body along with the position variation of the elevator body;
a storage unit 22 for storing fixed parameters that are fixed and unchangeable in the elevator body, wherein the variable parameters and the fixed parameters are referred to the above embodiment.
And the first processing unit 23 is connected with the load acquisition unit 20, the parameter acquisition unit 21 and the storage unit 22 and is used for processing the load, the variation parameters and the fixed parameters to obtain the natural frequency of the elevator body.
In another preferred embodiment of the present invention, the second obtaining module 2 may further include the following functional units:
the excitation unit 24 is connected with the elevator body and used for providing a vibration excitation force covering a preset frequency range for the elevator body;
the detection unit 25 is connected with the elevator body and used for detecting the excitation vibration generated by the elevator body under the vibration excitation force;
a second processing unit 26, connected to the excitation unit 24 and the detection unit 25, for obtaining a transfer function of the elevator body vibration input-output according to the vibration excitation force and the excitation vibration processing, and outputting the peak frequency of the transfer function as a natural frequency; or outputs the peak frequency of the excitation vibration as the natural frequency. However, when outputting the peak frequency of the excitation vibration as the natural frequency, the second processing section 26 only needs to be connected to the detection section 25, and the excitation section 24 does not need to be connected.
The beneficial effects of the above technical scheme are that:
the distance between each guide part in the elevator guide assembly is dynamically adjusted by detecting and acquiring the current running speed and natural frequency of the elevator body, so that the vibration in the horizontal direction caused by the defects of guide rails to the elevator body in different motion states is greatly weakened or even eliminated.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An elevator operation control method is applied to an elevator, and is characterized in that a plurality of guide assemblies are arranged in the elevator, each guide assembly comprises a plurality of guide parts, and the control method comprises the following steps:
s1, acquiring the running speed of an elevator body;
s2, acquiring the natural frequency of the elevator body;
s3, processing according to the running speed and the natural frequency to obtain an optimal distance value;
and S4, adjusting the distance between the guide parts in each guide assembly according to the optimal distance value.
2. The elevator operation control method according to claim 1, wherein each of the guide assemblies includes two guide portions, and the optimal distance value is obtained in step S3 according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
3. The elevator operation control method according to claim 1, wherein each of the guide assemblies includes three guide portions, and in step S3, the optimal distance value is obtained according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
4. The elevator operation control method according to claim 1, wherein the step S2 further comprises:
step S200, acquiring the load in the elevator body;
step S201, obtaining a variation parameter in the elevator body along with the position variation of the elevator body;
and S202, processing according to the load, the change parameters and fixed parameters which are fixed and unchangeable in the elevator body to obtain the natural frequency of the elevator body.
5. The elevator operation control method according to claim 1, wherein the step S2 further includes:
step S210, providing a vibration exciting force covering a preset frequency range for the elevator body;
step S211, detecting the excitation vibration generated by the elevator body under the vibration excitation force;
step S212, a transfer function of vibration input-output of the elevator body is obtained according to the vibration exciting force and the exciting vibration processing, and the peak frequency of the transfer function is output as the natural frequency; or
Outputting a peak frequency of the excitation vibration as the natural frequency.
6. An elevator operation control system applied to an elevator, characterized in that a plurality of guide assemblies are arranged in the elevator, each guide assembly comprises a plurality of guide parts, and the control system comprises:
the first acquisition module is used for acquiring the running speed of the elevator body;
the second acquisition module is used for acquiring the natural frequency of the elevator body;
the processing module is connected with the first acquisition module and the second acquisition module and used for processing according to the running speed and the natural frequency to obtain an optimal distance value;
and the control module is connected with the processing module and the guide assemblies and is used for adjusting the distance between the guide parts in each guide assembly according to the optimal distance value.
7. The elevator operation control system according to claim 6, wherein each of the guide assemblies includes two of the guide portions, the processing module processes the optimal distance value according to the following formula:
wherein the content of the first and second substances,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
8. The elevator operation control system of claim 6, wherein each of the guide assemblies includes three of the guide portions, the processing module processes the optimal distance value according to the following equation:
wherein, the first and the second end of the pipe are connected with each other,
ω n (t) for representing the natural frequency;
v (t) is used to represent the operating speed;
l (t) is used to represent the optimal distance value.
9. The elevator operation control system of claim 6, wherein the second acquisition module further comprises:
a load acquisition unit for acquiring a load in the elevator body;
the parameter acquisition unit is used for acquiring variation parameters of the elevator body along with the position variation of the elevator body;
the storage unit is used for storing fixed parameters which are fixed and unchangeable in the elevator body;
and the first processing unit is connected with the load acquisition unit, the parameter acquisition unit and the storage unit and is used for processing according to the load, the variation parameters and the fixed parameters to obtain the natural frequency of the elevator body.
10. The elevator operation control system of claim 6, wherein the second acquisition module further comprises:
the excitation unit is connected with the elevator body and is used for providing a vibration excitation force covering a preset frequency range for the elevator body;
the detection unit is connected with the elevator body and is used for detecting the excitation vibration generated by the elevator body under the vibration excitation force;
the second processing unit is connected with the excitation unit and the detection unit and used for obtaining a transfer function of vibration input-output of the elevator body according to the vibration excitation force and the excitation vibration processing and outputting the peak frequency of the transfer function as the natural frequency; or
Outputting a peak frequency of the excitation vibration as the natural frequency.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09194163A (en) * | 1996-01-19 | 1997-07-29 | Hitachi Ltd | Elevator |
| JP2004345776A (en) * | 2003-05-21 | 2004-12-09 | Mitsubishi Electric Corp | Car guide device of elevator |
| EP3470354A1 (en) * | 2017-10-16 | 2019-04-17 | Lau Chun Ming | System and method for managing and monitoring lifting systems and building facilities |
| CN208948635U (en) * | 2018-08-31 | 2019-06-07 | 中昇建机(南京)重工有限公司 | A kind of rack-and-pinion elevating mechanism and derrick crane |
| CN110356946A (en) * | 2019-08-09 | 2019-10-22 | 杭州宝宸科技有限公司 | With more schedule rolling guide shoes of independent damping idler wheel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048748A1 (en) * | 2010-10-14 | 2012-04-19 | Kone Corporation | Extending roller guides |
| CN108275525A (en) * | 2018-01-17 | 2018-07-13 | 中北大学 | Express elevator operating parameter monitoring method based on dynamic analysis |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09194163A (en) * | 1996-01-19 | 1997-07-29 | Hitachi Ltd | Elevator |
| JP2004345776A (en) * | 2003-05-21 | 2004-12-09 | Mitsubishi Electric Corp | Car guide device of elevator |
| EP3470354A1 (en) * | 2017-10-16 | 2019-04-17 | Lau Chun Ming | System and method for managing and monitoring lifting systems and building facilities |
| CN208948635U (en) * | 2018-08-31 | 2019-06-07 | 中昇建机(南京)重工有限公司 | A kind of rack-and-pinion elevating mechanism and derrick crane |
| CN110356946A (en) * | 2019-08-09 | 2019-10-22 | 杭州宝宸科技有限公司 | With more schedule rolling guide shoes of independent damping idler wheel |
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| CN111348521A (en) | 2020-06-30 |
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