CN115626540A - Elevator balancing method, elevator balancing device and elevator - Google Patents
Elevator balancing method, elevator balancing device and elevator Download PDFInfo
- Publication number
- CN115626540A CN115626540A CN202211242225.9A CN202211242225A CN115626540A CN 115626540 A CN115626540 A CN 115626540A CN 202211242225 A CN202211242225 A CN 202211242225A CN 115626540 A CN115626540 A CN 115626540A
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- car
- elevator
- vibration
- correction
- module
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/028—Active systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/185—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on main ropes or main cables
Abstract
The invention discloses an elevator balancing method, an elevator balancing device and an elevator, wherein the elevator balancing method comprises the following steps: presetting correction time and a rotation radius of the lift car, wherein the correction time is the vibration time of a pre-tested lift car at a vibration position in a well; obtaining the vibration displacement of the lift car through a vibration detection module; calculating correction torque according to the correction time, the vibration displacement and the rotation radius of the lift car; provide the correction moment opposite with vibrations displacement direction through correcting the moment module to the car, the duration of correcting the moment is correction time, detects the vibrations displacement of car through vibrations detection module, calculates correction moment according to the turning radius of the correction time of car, vibrations displacement and car, corrects the moment module and provides the correction moment opposite with vibrations displacement direction to the car, and the duration of correcting the moment is correction time, cushions the vibrations of elevator, and the shock attenuation is effectual.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator balancing method, an elevator balancing device and an elevator.
Background
The existing elevator mainly reduces the vibration of the elevator car by increasing shockproof rubber, the rubber inclination, rubber aging and other conditions are easy to occur, the damping effect is not good, and the problem of the elevator inclination cannot be solved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an elevator balancing method, an elevator balancing device and an elevator, which can solve the problems that the existing elevator damping device is poor in damping effect and cannot solve the inclination of the elevator.
According to the elevator balancing method in the embodiment of the first aspect of the invention, the method comprises the following steps: presetting correction time and a rotation radius of the lift car, wherein the correction time is the vibration time of a pre-tested lift car at a vibration position in a well; acquiring vibration displacement of the lift car; calculating correction torque according to the correction time, the vibration displacement and the rotation radius of the lift car; and providing a correction torque opposite to the vibration displacement direction to the lift car, wherein the duration of the correction torque is the correction time.
The elevator balancing method according to the embodiment of the first aspect of the invention has at least the following advantages:
through the vibrations displacement that detects the car, correct moment is calculated according to the correction time of car, vibrations displacement and turning radius, provides the correction moment with vibrations displacement opposite direction to the car, and the duration of correcting moment is correction time, the vibrations of buffering elevator, and the shock attenuation is effectual.
According to some embodiments of the invention, the corrective torque is calculated by: m = J a, wherein M is the correction torque, J is the moment of inertia of the correction torque module, and a is the angular acceleration of the car.
According to some embodiments of the invention, the calculation formula of the angular acceleration of the car is: a = V/(r x t), wherein V is the linear velocity of the car, r is the radius of rotation of the car, and t is the correction time.
According to some embodiments of the invention, the linear velocity of the car is calculated by: v =Δx/t, where Δ X is a car vibration displacement.
The elevator balancing device according to the embodiment of the second aspect of the invention is applied to an elevator, the elevator comprises a cage, and the elevator comprises: a vibration detection module mounted on the car for detecting vibration displacement of the car; a corrective torque module mounted on the car for applying thrust to the car; the output end of the vibration detection module is electrically connected with the input end of the control module, the output end of the correction torque module is electrically connected with the input end of the control module, and the control module controls the elevator to run in balance by applying the elevator balance method.
The elevator balancing device according to the embodiment of the second aspect of the invention has at least the following advantages:
the vibration detection module is used for detecting the vibration displacement of the lift car, the correction torque is calculated according to the correction time, the vibration displacement and the rotation radius of the lift car, the correction torque module is used for providing the correction torque opposite to the vibration displacement direction for the lift car, the duration time of the correction torque is the correction time, the vibration of the elevator is buffered, and the shock absorption effect is good.
According to some embodiments of the invention, the shock detection module comprises four shock sensors mounted at four corners of the top of the car, respectively.
According to some embodiments of the invention, the shock detection module comprises four laser displacement meters, which are respectively installed at the top and the bottom of both sides of the car.
An elevator according to an embodiment of the third aspect of the invention comprises: a car; the above-mentioned elevator balancing unit, the elevator balancing unit is installed on the car.
According to the elevator of the embodiment of the third aspect of the invention, at least the following advantages are achieved:
the vibration detection module is used for detecting the vibration displacement of the lift car, the correction torque is calculated according to the correction time, the vibration displacement and the rotation radius of the lift car, the correction torque module is used for providing the correction torque opposite to the vibration displacement direction for the lift car, the duration time of the correction torque is the correction time, the vibration of the elevator is buffered, and the shock absorption effect is good.
According to some embodiments of the invention, the car safety system further comprises a brake module comprising a speed limiter and a safety gear, the safety gear being mounted on the car, the speed limiter being adapted to be connected to the safety gear via a hoisting rope of the car.
According to some embodiments of the invention, the elevator system further comprises a speed detection module, the speed detection module is mounted on the car, and an output end of the speed detection module is electrically connected with an input end of the control module.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
fig. 1 is a flow chart of an elevator balancing method of the present invention;
fig. 2 is a front view of the car of the present invention;
fig. 3 is a left side view of the car of the present invention;
fig. 4 is a plan view of the car of the present invention.
Reference numerals:
a car 100,
A vibration sensor 200,
A laser displacement meter 300,
A magnetic torquer 400,
A speed sensor 500,
An alarm 600.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
As shown in fig. 1, the method for balancing an elevator according to the embodiment of the first aspect of the present invention comprises the steps of:
s100, presetting correction time, a rotation radius and initial position data of the car 100, wherein the correction time is the vibration time of a position where the car 100 generates vibration in a hoistway, which is tested in advance;
s200, obtaining vibration displacement of the car 100, wherein the vibration displacement is a difference value between current position data and initial position data of the car 100;
s300, calculating correction torque according to the correction time, the vibration displacement and the rotation radius of the car 100;
and S400, providing a correction torque opposite to the vibration displacement direction to the elevator car 100, wherein the duration of the correction torque is correction time, and correcting the elevator to an initial position.
By detecting the vibration displacement of the car 100, the correction torque is calculated according to the correction time of the car 100, the vibration displacement and the rotation radius of the car 100, the correction torque in the direction opposite to the vibration displacement direction is provided for the car 100, the duration of the correction torque is the correction time, the vibration of the elevator is buffered, and the shock absorption effect is good.
The formula for calculating the corrective torque is as follows: m = J × a, where M is the corrective moment, J is the moment of inertia of the corrective moment module, and a is the angular acceleration of the car 100.
The calculation formula of the angular acceleration of the car 100 is: a = V/(r × t), where V is the linear velocity of the car 100, r is the radius of rotation of the car 100, and t is the correction time.
The linear velocity of the car 100 is calculated as: v =Δx/t, where Δ X is the car 100 is a vibrational displacement.
As shown in fig. 2, an elevator balancing apparatus according to an embodiment of the second aspect of the present invention is applied to an elevator including a cage 100 including: a vibration detection module installed on the car 100 for detecting a vibration displacement of the car 100; a corrective torque module mounted on the car 100 for applying a thrust to the car 100; the output end of the vibration detection module is electrically connected with the input end of the control module, the output end of the correction torque module is electrically connected with the input end of the control module, and the control module controls the elevator to run in balance by applying the elevator balance method.
The vibration displacement of the car 100 is detected through the vibration detection module, the correction torque is calculated according to the correction time, the vibration displacement and the rotation radius of the car 100, the correction torque module provides the correction torque opposite to the vibration displacement direction for the car 100, the duration time of the correction torque is the correction time, the vibration of the elevator is buffered, and the shock absorption effect is good.
As shown in fig. 4, the shock detection module includes four shock sensors 200, and the four shock sensors 200 are respectively installed at four corners of the top of the car 100. The four vibration sensors 200 respectively detect the vibration displacements of the four corners and feed the vibration displacements back to the control module, and the control module calculates the average value of the vibration displacements of the four corners as the vibration displacement of the car 100.
As shown in fig. 2, the vibration detection module may further employ four laser displacement meters 300, the four laser displacement meters 300 are respectively installed at the top and the bottom of the two sides of the car 100, each laser displacement meter 300 detects the distance between the car 100 and the two sides of the guide rail and the top of the guide rail, and the control module calculates the vibration displacement of the car 100 according to the distance detected by each laser displacement meter 300.
As shown in fig. 3, the corrective torque module includes six magnetic torquers 400, and the six magnetic torquers 400 are respectively installed at the central position of each side of the car 100 and can provide thrust in six directions to the car 100. The formula for calculating the torque provided by the magnetic torquer 400 is: m = NBISsin θ, where M is moment, N is the number of turns of the magnetic torquer 400, B is magnetic induction intensity, I is coil current of the magnetic torquer 400, S is coil area of the magnetic torquer 400, and θ is an included angle between magnetic moment of the magnetic torquer 400 and magnetic induction line. The control module causes magnetic torquer 400 to provide different torques by varying the coil current of magnetic torquer 400.
An elevator according to an embodiment of the third aspect of the invention comprises: a car 100; in the above-described elevator balancing device, the elevator balancing device is mounted on the car 100.
The vibration displacement of the car 100 is detected through the vibration detection module, the correction torque is calculated according to the correction time, the vibration displacement and the rotation radius of the car 100, the correction torque module provides the correction torque opposite to the vibration displacement direction for the car 100, the duration time of the correction torque is the correction time, the vibration of the elevator is buffered, and the shock absorption effect is good.
The braking module comprises a speed limiter and a safety gear, the speed limiter is installed in an elevator machine room, the safety gear is installed on the car 100, and the speed limiter is connected with the safety gear through a traction rope of the car 100. When the elevator runs, the vertical motion of the elevator is converted into the rotary motion of the speed limiter by the traction rope, and when the rotating speed of the speed limiter exceeds a limit value, the speed limiter blocks the traction rope, so that the safety tongs are forced to act, and the traction type elevator is forcibly stopped on the guide rail of the car 100.
As shown in fig. 3, the elevator car door opening and closing device further comprises a speed detection module and an alarm module, wherein the speed detection module is a speed sensor 500, the alarm module is an alarm 600, the speed sensor 500 is installed on the car 100, the output end of the speed sensor 500 is electrically connected with the input end of the control module, and the output end of the control module is electrically connected with the input end of the alarm 600. The speed sensor 500 detects the running speed of the car 100, and when the car 100 stalls, the control module turns off the corrective torque module and the alarm 600 gives an alarm to warn passengers not to step into the car 100.
Next, a corrective moment calculation process of the elevator balancing method according to the embodiment of the first aspect of the present invention will be described by taking the lifting process of the car 100 as an example.
Taking the vibration in the X direction as an example, four vibration sensors detect the vibration displacement of four corners within 1 s:
X1＝0.005m、X2＝0.007m、X3＝0.005m、X4＝0.007m
the vibration displacement of the car 100 is:
△X＝(0.005+0.007+0.005+0.007)/4＝0.006m
the correction time of the car 100 is preset to be 1s, the car 100 returns to positive 0.006m, and the linear speed of the car 100 returning to positive is as follows:
V＝0.006/1＝0.006m/s
if the radius of rotation of the car 100 is r =1m, the return angular velocity of the car 100 is:
a＝0.006/1/1＝0.006m/s^2
if the moment of inertia of the magnetic moment device 400 is 500, the corrective moment is:
M＝Ja＝500*0.006＝3kgf·m
the corrective moment M1 provided by the single side magnetic torquer 400 is:
M1＝M/2＝1.5kgf·m
taking the vibration in the Y direction as an example, the two laser displacement meters 300 on the same side detect the distance between the car 100 and the guide rail as follows:
Y1＝0.010m、Y2＝0.004m
the vibration displacement of the car 100 is:
deviation Δ X = (0.010-0.004)/2 =0.003m
The correction time of the car 100 is preset to be 1s, the car 100 returns to the positive 0.003m, and then the linear speed of the car 100 returning to the positive is as follows:
V＝0.003/1s＝0.003m/s
if the radius of rotation of the car 100 is r =1m, the return angular velocity of the car 100 is:
a＝0.003/1/1＝0.003m/s^2
if the moment of inertia of the magnetic moment device 400 is 500, the corrective moment is:
M＝Ja＝500*0.003＝1.5kgf·m
the corrective moment M1 provided by the single side magnetic torquer 400 is:
M1＝M/2＝0.75kgf·m
it will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Elevator balancing method, characterized by the following steps:
presetting correction time and a rotation radius of the car (100), wherein the correction time is the vibration time of a position where the car (100) generates vibration in a hoistway, which is tested in advance;
acquiring vibration displacement of a car (100);
calculating a correction torque according to the correction time, the vibration displacement and the rotation radius of the car (100);
and providing a correction torque opposite to the vibration displacement direction to the car (100), wherein the duration of the correction torque is correction time.
2. The elevator balancing method according to claim 1, wherein: the calculation formula of the correction torque is as follows: m = J a, wherein M is the correction torque, J is the moment of inertia of the correction torque module, and a is the angular acceleration of the car (100).
3. The elevator balancing method of claim 2, wherein: the calculation formula of the angular acceleration of the car (100) is as follows: a = V/(r x t), wherein V is the linear velocity of the car (100), r is the radius of rotation of the car (100), and t is the correction time.
4. The elevator balancing method of claim 3, wherein: the linear velocity of the car (100) is calculated by the formula: v = [ Delta ] X/t, wherein the [ Delta ] X is the vibration displacement of the car (100).
5. Elevator balancing device, applied to an elevator, said elevator comprising a car (100), characterized in that it comprises:
a shock detection module mounted on the car (100) for detecting a shock displacement of the car (100);
a corrective torque module mounted on the car (100) for applying thrust to the car (100);
the control module, the output of vibrations detection module electric connection the input of control module, the output of correction torque module electric connection the input of control module, control module uses any one elevator balancing method of above-mentioned claim 1 to 4 to control the elevator operation is balanced.
6. The elevator balancing apparatus of claim 5, wherein: the vibration detection module comprises four vibration sensors (200), and the four vibration sensors (200) are respectively installed at four corners of the top of the lift car (100).
7. The elevator balancing apparatus of claim 5, wherein: the vibration detection module comprises four laser displacement meters (300), and the four laser displacement meters (300) are respectively installed at the top and the bottom of two sides of the car (100).
8. Elevator, characterized by comprising:
a car (100);
the elevator balancing device of any one of the preceding claims 5 to 7, mounted on the car (100).
9. The elevator of claim 8, characterized in that: still include the braking module, the braking module includes overspeed governor and safety tongs, safety tongs installs on car (100), the overspeed governor is used for connecting through the towline of car (100) safety tongs.
10. The elevator of claim 8, wherein: still include speed detection module, speed detection module installs on car (100), speed detection module's output electric connection control module's input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211242225.9A CN115626540A (en) | 2022-10-11 | 2022-10-11 | Elevator balancing method, elevator balancing device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211242225.9A CN115626540A (en) | 2022-10-11 | 2022-10-11 | Elevator balancing method, elevator balancing device and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115626540A true CN115626540A (en) | 2023-01-20 |
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ID=84903908
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211242225.9A Pending CN115626540A (en) | 2022-10-11 | 2022-10-11 | Elevator balancing method, elevator balancing device and elevator |
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| Country | Link |
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| CN (1) | CN115626540A (en) |
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2022
- 2022-10-11 CN CN202211242225.9A patent/CN115626540A/en active Pending
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