CN115477210B - Traction type elevator balancing method, traction type elevator balancing device and traction type elevator - Google Patents
Traction type elevator balancing method, traction type elevator balancing device and traction type elevator Download PDFInfo
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- CN115477210B CN115477210B CN202211127009.XA CN202211127009A CN115477210B CN 115477210 B CN115477210 B CN 115477210B CN 202211127009 A CN202211127009 A CN 202211127009A CN 115477210 B CN115477210 B CN 115477210B
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- 238000009434 installation Methods 0.000 description 7
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- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
-
- 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
- B66B11/0266—Passive systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
-
- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/068—Cable weight compensating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/40—Details of the change of control mode
- B66B2201/403—Details of the change of control mode by real-time traffic data
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The application discloses a traction type elevator balancing method, a traction type elevator balancing device and a traction type elevator, wherein the traction type elevator balancing method comprises the following steps: presetting a rated speed and an acceleration time of a lift car; acquiring the instantaneous speed of the car, a first pulling force on a hoisting rope at the top of the car and a second pulling force on a hoisting rope at the top of the counterweight module; calculating a first compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the total mass of the car side, the first tension and the second tension of the car; calculating a second compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and the total weight of the counterweight module side of the car; the first force compensation module is used for providing a first compensation thrust for the car, the second force compensation module is used for providing a second compensation thrust for the counterweight module, and the duration time of the first compensation thrust and the second compensation thrust is a preset acceleration time.
Description
Technical Field
The application relates to the technical field of traction type elevators, in particular to a traction type elevator balancing method, a traction type elevator balancing device and a traction type elevator.
Background
The existing traction type elevator mainly adjusts the weight difference between the elevator car and the counterweight module through the compensation chain, so that the elevator car and the traction type elevator keep rated speed to operate, and the purpose of operation balance is achieved. However, the car, counterweight module and compensation chain system are relatively complex and easily cause car tilting and strong vibration, affecting passenger riding comfort, while equipment is bulky, inconvenient to install, and high in hoistway requirements.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a traction type elevator balancing method, a traction type elevator balancing device and a traction type elevator, which can solve the problems that the existing traction type elevator compensation equipment is easy to cause the inclination of a lift car and has higher requirements on a well.
The traction type elevator balancing method according to the embodiment of the first aspect of the present application comprises the following steps: presetting a rated speed and an acceleration time of a lift car; acquiring the instantaneous speed of the car, a first pulling force on a hoisting rope at the top of the car and a second pulling force on a hoisting rope at the top of the counterweight module; calculating a first compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the total mass of the car side, the first tension and the second tension of the car; calculating a second compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and the total weight of the counterweight module side of the car; the first force compensation module is used for providing a first compensation thrust for the car, the second force compensation module is used for providing a second compensation thrust for the counterweight module, and the duration time of the first compensation thrust and the second compensation thrust is a preset acceleration time.
The traction type elevator balancing method according to the embodiment of the first aspect of the application has at least the following beneficial effects:
the method comprises the steps that a tension detection module detects a first tension on a hoisting rope at the top of a car and a second tension on a hoisting rope at the top of a counterweight module, a speed detection module detects the instantaneous speed of the car, a control module calculates first compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension and total mass at the car side of the car, the control module calculates second compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and total mass at the counterweight module side of the car, the first force compensation module provides first compensation thrust for the car, the second force compensation module provides second compensation thrust for the counterweight module, the duration time of the first compensation thrust and the second compensation thrust is the preset acceleration time, the car reaches the rated speed under the pushing of the first force compensation module, the counterweight module reaches the rated speed under the pushing of the second force compensation module, the traction type elevator operates in balance, the first force compensation module and the second force compensation module are respectively installed on the car and the counterweight module, the car is not required to be installed in a hoistway, the first force compensation module is not required to be installed in the hoistway, the car is not required to be inclined, the first force compensation module is not required to be inclined, the car is not required to be inclined, and the riding comfort is not required to be directly, and the car is not required to be installed, and the car is not required to be inclined to be directly, and the car is not convenient to be installed.
According to some embodiments of the application, the first compensation thrust force has a calculation formula: f3 =m1 (V2-V1)/t+f1-F2, where F3 is the first compensation thrust, M1 is the total car side mass, V2 is the rated car speed, V1 is the instantaneous car speed, t is the acceleration time, F1 is the first pull force, and F2 is the second pull force.
According to some embodiments of the application, the second compensation thrust force is calculated by the following formula: f4 =m2 (V2-V1)/(tN) +f1-F2, where F4 is the second compensation thrust, M2 is the total weight on the counterweight module side, V2 is the rated speed of the car, V1 is the instantaneous speed of the car, t is the acceleration time, N is the traction ratio, F1 is the first tension, and F2 is the second tension.
According to some embodiments of the application, the calculation formula of the total mass of the car side is: m1=m1+m2+m3, where M1 is the total car-side mass, M1 is the car mass, M2 is the passenger mass, and M3 is the car-side rope mass.
According to some embodiments of the application, the calculation formula of m3 is: m3= (P-L) D m6, where P is the total number of floors, L is the number of floors on which the car is located, D is the floor level, and m6 is the mass per unit length of the hoisting rope.
According to some embodiments of the application, the calculation formula of the total weight of the counterweight module side is: m2=m4+m5, where M2 is the total weight on the counterweight module side, M4 is the weight of the counterweight module, and M5 is the weight of the hoisting rope on the counterweight module side.
According to some embodiments of the application, the calculation formula of m5 is: m5= (l×d×m6×2)/N, where L is the number of floors on which the car is located, D is the floor level, m6 is the mass per unit length of the hoisting rope, and N is the hoisting ratio.
According to a second aspect of the present application, there is provided a traction type elevator balancing apparatus for a traction type elevator including a car, a traction sheave, a traction rope, and a counterweight module, one end of the traction rope passing through the traction sheave and connected to the car, the other end of the traction rope being connected to the counterweight module, comprising: the quality detection module is arranged at the bottom of the car and used for detecting the quality of passengers; the tension detection module is used for detecting a first tension on the traction rope at the top of the car and a second tension on the traction rope at the top of the car; the speed detection module is used for detecting the instantaneous speed of the car; a first force compensation module mounted on the car for providing a first compensation thrust in a vertical direction; a second force compensation module mounted on the counterweight module for providing a second compensation thrust in a vertical direction; the control module, the output of quality detection module electric connection control module's input, the output of pulling force detection module electric connection control module's input, the output of speed detection module electric connection control module's input, the output of control module electric connection respectively the control end of first force compensation module and the control end of second force compensation module, control module adopts the balanced method of traction type elevator control traction type elevator operation to balance.
The traction type elevator balancing device according to the embodiment of the second aspect of the application has at least the following beneficial effects:
the method comprises the steps that a tension detection module detects a first tension on a hoisting rope at the top of a car and a second tension on a hoisting rope at the top of a counterweight module, a speed detection module detects the instantaneous speed of the car, a control module calculates first compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension and total mass at the car side of the car, the control module calculates second compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and total mass at the counterweight module side of the car, the first force compensation module provides first compensation thrust for the car, the second force compensation module provides second compensation thrust for the counterweight module, the duration time of the first compensation thrust and the second compensation thrust is the preset acceleration time, the car reaches the rated speed under the pushing of the first force compensation module, the counterweight module reaches the rated speed under the pushing of the second force compensation module, the traction type elevator operates in balance, the first force compensation module and the second force compensation module are respectively installed on the car and the counterweight module, the car is not required to be installed in a hoistway, the first force compensation module is not required to be installed in the hoistway, the car is not required to be inclined, the first force compensation module is not required to be inclined, the car is not required to be inclined, and the riding comfort is not required to be directly, and the car is not required to be installed, and the car is not required to be inclined to be directly, and the car is not convenient to be installed.
According to some embodiments of the application, the brake module further comprises a speed limiter and a safety gear, the safety gear is mounted on the car, and the speed limiter is connected with the safety gear through the traction rope.
The traction type elevator according to the embodiment of the third aspect of the application comprises the traction type elevator balancing apparatus described above.
The traction type elevator according to the embodiment of the third aspect of the application has at least the following beneficial effects:
the method comprises the steps that a tension detection module detects a first tension on a hoisting rope at the top of a car and a second tension on a hoisting rope at the top of a counterweight module, a speed detection module detects the instantaneous speed of the car, a control module calculates first compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension and total mass at the car side of the car, the control module calculates second compensation thrust of the car according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and total mass at the counterweight module side of the car, the first force compensation module provides first compensation thrust for the car, the second force compensation module provides second compensation thrust for the counterweight module, the duration time of the first compensation thrust and the second compensation thrust is the preset acceleration time, the car reaches the rated speed under the pushing of the first force compensation module, the counterweight module reaches the rated speed under the pushing of the second force compensation module, the traction type elevator operates in balance, the first force compensation module and the second force compensation module are respectively installed on the car and the counterweight module, the car is not required to be installed in a hoistway, the first force compensation module is not required to be installed in the hoistway, the car is not required to be inclined, the first force compensation module is not required to be inclined, the car is not required to be inclined, and the riding comfort is not required to be directly, and the car is not required to be installed, and the car is not required to be inclined to be directly, and the car is not convenient to be installed.
Additional aspects and advantages of the application 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 application.
Drawings
The application is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a flow chart of a traction type elevator balancing method of the present application;
FIG. 2 is a schematic diagram of the structure of the present application;
fig. 3 is a bottom view of the car of the present application;
fig. 4 is a bottom view of the counterweight module of the application.
Reference numerals:
car 100, shock absorber 110, alarm module 120,
Traction sheave 200,
A hoisting rope 300,
Counterweight module 400,
Pulley 500,
A first tension sensor 600, a second tension sensor 610, a third tension sensor 620,
A speed detection module 700,
A first turbofan 800,
A second turbofan 900.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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 application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The compensation chain is a member for connecting the car 100 of the traction type elevator with the counterweight module 400, balancing the weight of the hoisting rope 300 and the travelling cable, and balancing the operation of the traction type elevator. During operation of the traction type elevator, the lengths of the traction ropes 300 on the car 100 side and the counterweight module 400 side are continuously changed, thereby causing a change in the weight of the traction ropes 300 on both sides of the traction sheave 200. When the car 100 is at the lowest landing, the weight of the hoist rope 300 mostly acts on the car 100 side; when the car 100 is at the highest landing, the weight of the hoist rope 300 mostly acts on the counterweight module 400 side. When the lifting height of the traction type elevator is not large, the change has little influence on the running performance of the traction type elevator, but when the lifting height exceeds a certain height, the running stability of the traction type elevator can be seriously influenced, and the safety of passengers is endangered. For this reason, when the lifting height of the traction elevator exceeds a certain height, a compensation chain must be provided to balance the weight change due to the height change. However, the car 100, the counterweight module 400, and the compensation chain system are relatively complex and easily cause the car 100 to incline and vibrate strongly, affecting the riding comfort of passengers, while the equipment is bulky, inconvenient to install, and high in hoistway requirements.
In order to solve the problems described above, the present application provides a traction type elevator balancing method, a traction type elevator balancing apparatus, and a traction type elevator. The present application provides a traction type elevator balancing method, a traction type elevator balancing apparatus, and a traction type elevator.
As shown in fig. 1, a balancing method of a traction type elevator according to an embodiment of a first aspect of the present application includes the steps of:
s100, presetting a rated speed V2 and an acceleration time t of the car 100;
s200, acquiring the instantaneous speed V1 of the car 100, a first pulling force F1 on the traction rope 300 at the top of the car 100 and a second pulling force F2 on the traction rope 300 at the top of the counterweight module 400;
s300, calculating a first compensation thrust F3 of the car 100 according to a rated speed V2, an instantaneous speed V1, a preset acceleration time t, a first pulling force F1, a second pulling force F2 and a total mass M1 of the car 100 side, wherein the total mass M1 of the car 100 side is the sum of the mass M1 of the car 100, the mass M2 of a passenger and the mass M3 of the traction rope 300 of the car 100 side;
the passenger mass m2 is obtained by the mass detection module after the passenger enters the traction elevator, and the calculation formula of the mass m3 of the side traction rope 300 of the car 100 is as follows:
m3＝(P-L)*D*m6
wherein P is the total floor number, L is the floor number where the car 100 is located, D is the floor level height, and m6 is the mass per unit length of the hoist rope 300;
s400, calculating a second compensation thrust F4 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first pulling force F1, the second pulling force F2, the traction ratio N and the total mass M2 of the counterweight module 400 side of the car 100, wherein the total mass M2 of the counterweight module 400 side is the sum of the mass M4 of the counterweight module 400 and the mass M5 of the traction rope 300 of the counterweight module 400 side of the car;
the calculation formula of the mass m5 of the traction rope 300 at the counterweight module 400 side is as follows:
m5＝(L*D*m6*2)/N
wherein L is the floor number on which the car 100 is located, D is the floor level, and m6 is the mass per unit length of the hoist rope 300;
s500, providing a first compensation thrust F3 for the car 100 through a first force compensation module, and providing a second compensation thrust F4 for the counterweight module 400 through a second force compensation module, wherein the duration time of the first compensation thrust F3 and the second compensation thrust F4 is a preset acceleration time t.
The first tension F1 on the traction rope 300 at the top of the car 100 and the second tension F2 on the traction rope 300 at the top of the counterweight module 400 are detected by the tension detection module, the speed detection module 700 detects the instantaneous speed V1 of the car 100, the control module calculates the first compensating thrust F3 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2 and the total mass M1 at the side of the car 100, the control module calculates the second compensating thrust F4 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2, the traction ratio N and the total mass M2 at the side of the counterweight module 400 of the car 100, the first force compensation module provides the first compensating thrust F3 to the car 100, the second force compensation module provides a second compensation thrust F4 for the counterweight module 400, the duration time of the first compensation thrust F3 and the second compensation thrust F4 is a preset acceleration time t, the car 100 reaches a rated speed V2 under the pushing of the first force compensation module, the counterweight module 400 reaches the rated speed V2 under the pushing of the second force compensation module, the traction elevator operates in a balanced mode, the first force compensation module and the second force compensation module are respectively arranged on the car 100 and the counterweight module 400, no installation is needed in a hoistway, no requirement is required for the hoistway, installation is convenient, the first compensation thrust F3 and the second compensation thrust F4 are directly applied to the car 100 and the counterweight module 400, the car 100 cannot incline, the vibration of the car 100 is small, and the riding comfort is improved.
The calculation formula of the first compensation thrust F3 is:
F3＝M1(V2-V1)/t+F1-F2
the calculation formula of the second compensation thrust F4 is:
F4＝M2(V2-V1)/(tN)+F1-F2
the first turbofan 800 provides the first compensation thrust F3 to the car 100, the second turbofan 900 provides the second compensation thrust F4 to the counterweight module 400, and the thrust calculation formulas of the first turbofan 800 and the second turbofan 900 are:
fvortex=mu/t=den [ (Jr) W ]. Sup.2 (T)/pi (R. Sup.2-R. Sup.2)
Where den is the average density of air, J is the moment of inertia, R is the inner diameter of the first turbofan 800 or the second turbofan 900, R is the outer diameter of the first turbofan 800 or the second turbofan 900, W is the rotational speed of the first turbofan 800 or the second turbofan 900, T is the stroke time of the first turbofan or the second turbofan, and t=t.
Controlling the rotational speed of the first turbo fan 800 or the second turbo fan 900 can provide the first compensation thrust F3 or the second compensation thrust F4 of different magnitudes.
Taking the lifting process of the car 100 as an example, the rotational speed calculating process of the first turbofan 800 and the second turbofan 900 is described, the number of the first turbofan 800 and the second turbofan 900 is 2, the traction ratio N of the traction elevator is 2, the mass m1 of the car 100 is 500kg, the mass m4 of the counterweight module 400 is 943kg, and the preset acceleration time t is 1s.
Under the conditions that the rated speed V2 of the preset car 100 is 2.5m/s and the preset acceleration time t is 1s, the first tension force F1 measured by the first tension sensor 600 is 10000N, the sum of the tension forces measured by the second tension sensor 610 and the third tension sensor 620 is 7000N, namely the second tension force F2 is 7000N;
after the passenger enters the traction type elevator, the quality detection module detects that the passenger quality m2 is 443kg, the total floor number is 20, the floor number where the car 100 is positioned is 15, the floor level is 3m, the quality of the unit length of the traction rope 300 is 3.8kg/m, and then the quality m3 of the traction rope 300 at the side of the car 100 is as follows:
m3＝(P-L)*D*m6＝57kg
the total mass M1 on the car 100 side is:
M1＝m1+m2+m3＝500+443+57＝1000kg
the speed detection module 700 measures an instantaneous speed V1 of the car 100 of 2.0m/s, and the first compensation thrust F3 of the car 100 is:
F3＝M1(V2-V1)/t+F1-F2＝1000(2.5-2.0)/1+10000-7000＝3500N
the thrust provided by the single first turbofan 800 is:
F3/2＝1750N
the weight m5 of the counterweight module 400 side traction rope 300 is:
m5＝(L*D*m6*2)/N＝57kg
the total mass M2 at the counterweight module 400 side is:
M2＝m4+m5＝943+57＝1000kg
second compensation thrust F4 of car 100:
F4＝M2(V2-V1)/(tN)+F1-F2＝1000(2.5-2.0)/2+10000-7000＝3250N
the thrust provided by the single second turbofan 900 is:
F4/2＝1625N
the thrust force calculation formulas of the first turbofan 800 and the second turbofan 900 are:
fvortex=mu/t=den [ (Jr) W ]. Sup.2 (T)/pi (R. Sup.2-R. Sup.2)
Where den is the average density of air, J is the moment of inertia of the first and second turbofans 800 and 900, R is the outer diameters of the first and second turbofans 800 and 900, and R is the inner diameters of the first and second turbofans 800 and 900;
the average density of air is 1.29kg/m 3, J is 30kg/m 2, R is 0.3m, r is 0.1m, W is the rotational speed of the first and second turbofans 800 and 900 according to the specification parameters of the first and second turbofans 800 and 900;
let fvortex=f3/2, calculate the rotational speed w1=77.0 rad/s of the first turbofan 800;
let fvortex=f4/2, calculate the rotational speed w2=74.1 rad/s of the second turbofan 900;
the control module drives the first turbofan 800 such that the rotation speed of the first turbofan 800 reaches 77.0rad/s, the first turbofan 800 provides a first compensating thrust F3 to the car 100, the control module drives the second turbofan 900 such that the rotation speed of the second turbofan 900 reaches 74.1rad/s, the second turbofan 900 provides a second compensating thrust F4 to the counterweight module 400, and the duration of the first compensating thrust F3 and the second compensating thrust F4 is 1s.
As shown in fig. 2, a traction type elevator balancing apparatus according to a second aspect of the present application is for a traction type elevator including a car 100, a traction sheave 200, a traction rope 300, a counterweight module 400, and a sheave 500, one end of the traction rope 300 passing through the traction sheave 200 and being connected to the top of the car 100, the sheave 500 being mounted on the counterweight module 400, the other end of the traction rope 300 being used to pass through the sheave 500 and being connected to a wall, comprising: the device comprises a tension detection module, a speed detection module 700, a first force compensation module, a second force compensation module, a quality detection module and a control module, wherein the quality detection module is arranged at the bottom of the car 100 and used for detecting the passenger quality m2, the first force compensation module is arranged on the car 100 and used for providing a first compensation thrust F3 in the vertical direction, the second force compensation module is arranged on the counterweight module 400 and used for providing a second compensation thrust F4 in the vertical direction, the output end of the quality detection module is electrically connected with the input end of the control module, the output end of the tension detection module is electrically connected with the input end of the control module, the output end of the speed detection module 700 is electrically connected with the input end of the control module, the output end of the control module is electrically connected with the control end of the first force compensation module and the control end of the second force compensation module respectively, the control module is used for calculating the first compensation thrust F3 and the second compensation thrust F4 of the car 100, and the control module controls the first force compensation module to provide the first compensation thrust F3 for the car 100, and the control module controls the second force compensation module to provide the second compensation thrust F4 for the counterweight module 400. The control module is MCU, can also adopt PLC.
The first tension F1 on the traction rope 300 at the top of the car 100 and the second tension F2 on the traction rope 300 at the top of the counterweight module 400 are detected by the tension detection module, the speed detection module 700 detects the instantaneous speed V1 of the car 100, the control module calculates the first compensating thrust F3 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2 and the total mass M1 at the side of the car 100, the control module calculates the second compensating thrust F4 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2, the traction ratio N and the total mass M2 at the side of the counterweight module 400 of the car 100, the first force compensation module provides the first compensating thrust F3 to the car 100, the second force compensation module provides a second compensation thrust F4 for the counterweight module 400, the duration time of the first compensation thrust F3 and the second compensation thrust F4 is a preset acceleration time t, the car 100 reaches a rated speed V2 under the pushing of the first force compensation module, the counterweight module 400 reaches the rated speed V2 under the pushing of the second force compensation module, the traction elevator operates in a balanced mode, the first force compensation module and the second force compensation module are respectively arranged on the car 100 and the counterweight module 400, no installation is needed in a hoistway, no requirement is met on the hoistway, the installation is convenient, the first compensation thrust F3 and the second compensation thrust F4 are directly applied to the car 100 and the counterweight module 400, the car 100 cannot incline, the vibration of the car 100 is small, and the riding comfort is improved.
As shown in fig. 2, the tension detecting module includes a first tension sensor 600, a second tension sensor 610, and a third tension sensor 620, the first tension sensor 600 being installed on the traction ropes 300 at the top of the car 100, the second tension sensor 610 and the third tension sensor 620 being installed on the traction ropes 300 at both sides of the sheave 500, respectively.
As shown in fig. 2, the first force compensation module includes a first driving chip and a first turbofan 800, the second force compensation module includes a second driving chip and a second turbofan 900, as shown in fig. 3, two first turbofans 800 are installed at the bottom of the car 100, as shown in fig. 2 and fig. 4, two second turbofans 900 are installed at the top and bottom of the counterweight module 400, respectively, an output end of the control module is electrically connected with an input end of the first driving chip, an output end of the first driving chip is electrically connected with a control end of the first turbofan 800, an output end of the control module is electrically connected with an input end of the second driving chip, and an output end of the second driving chip is electrically connected with a control end of the second turbofan 900. The control module controls the rotational speeds and directions of the first and second turbo fans 800 and 900, respectively, so that the first and second turbo fans 800 and 900 provide the first and second compensating thrust forces F3 and F4 having different magnitudes, and the first and second compensating thrust forces F3 and F4 are redirected. The first turbo fans 800 may be installed at the top or bottom as needed, the first turbo fans 800 may be installed at both the top and bottom, and the number of the first turbo fans 800 may be other number as needed. The second turbo fans 900 may be installed only at the top or bottom of the counterweight module 400, and other numbers of the second turbo fans 900 may be installed as needed.
The bottom of the car 100 is provided with the damping layer 110, the damping layer 110 is a rubber pad, the vibration of the car 100 caused by the rotation of the first turbofan 800 and the second turbofan 900 can be weakened, and the damping layer 110 can also adopt damping materials such as silica gel pads.
The device also comprises a rotation speed detection module, a braking module and an alarm module 120, wherein the output end of the control module is electrically connected with the input end of the alarm module 120.
The rotation speed detection module is a rotation speed sensor, the rotation speed sensor is installed on the first turbofan 800 and the second turbofan 900, the output end of the rotation speed sensor is electrically connected with the input end of the control module, the rotation speed sensor detects the rotation speeds of the first turbofan 800 and the second turbofan 900 and feeds back to the control module, and when the first turbofan 800 or the second turbofan 900 is detected to stall, the control module controls the alarm module 120 to give an alarm to warn passengers that passengers cannot enter the car 100.
The braking module comprises a speed limiter installed in the traction elevator machine room and a safety gear installed on the car 100, the speed limiter being connected to the safety gear by means of a traction rope 300. When the traction type elevator operates, the traction rope 300 converts the vertical motion of the traction type elevator into the rotation motion of the speed limiter, and when the rotation speed of the speed limiter exceeds a limit value, the speed limiter clamps the traction rope 300 to force the safety gear to act so as to forcedly stop the traction type elevator on the guide rail of the car 100.
The traction type elevator according to the embodiment of the third aspect of the application comprises the traction type elevator balancing apparatus described above.
The first tension F1 on the traction rope 300 at the top of the car 100 and the second tension F2 on the traction rope 300 at the top of the counterweight module 400 are detected by the tension detection module, the speed detection module 700 detects the instantaneous speed V1 of the car 100, the control module calculates the first compensating thrust F3 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2 and the total mass M1 at the side of the car 100, the control module calculates the second compensating thrust F4 of the car 100 according to the rated speed V2, the instantaneous speed V1, the preset acceleration time t, the first tension F1, the second tension F2, the traction ratio N and the total mass M2 at the side of the counterweight module 400 of the car 100, the first force compensation module provides the first compensating thrust F3 to the car 100, the second force compensation module provides a second compensation thrust F4 for the counterweight module 400, the duration time of the first compensation thrust F3 and the second compensation thrust F4 is a preset acceleration time t, the car 100 reaches a rated speed V2 under the pushing of the first force compensation module, the counterweight module 400 reaches the rated speed V2 under the pushing of the second force compensation module, the traction elevator operates in a balanced mode, the first force compensation module and the second force compensation module are respectively arranged on the car 100 and the counterweight module 400, no installation is needed in a hoistway, no requirement is met on the hoistway, the installation is convenient, the first compensation thrust F3 and the second compensation thrust F4 are directly applied to the car 100 and the counterweight module 400, the car 100 cannot incline, the vibration of the car 100 is small, and the riding comfort is improved.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and 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 both 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 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 be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, 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.
The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application.
Claims (8)
1. The traction type elevator balancing method is characterized by comprising the following steps of:
presetting a rated speed and an acceleration time of a car (100);
acquiring an instantaneous speed of the car (100), a first tension on a traction rope (300) at the top of the car (100) and a second tension on the traction rope (300) at the top of the counterweight module (400);
calculating a first compensation thrust of the car (100) according to the rated speed, the instantaneous speed, the preset acceleration time, the total mass of the car (100) side, the first tension and the second tension of the car (100); the calculation formula of the first compensation thrust is as follows: f3 =m1 (V2-V1)/t+f1-F2, where F3 is a first compensation thrust, M1 is a total mass on the car (100) side, V2 is a rated speed of the car (100), V1 is an instantaneous speed of the car (100), t is an acceleration time, F1 is a first pull force, and F2 is a second pull force;
calculating a second compensation thrust of the car (100) according to the rated speed, the instantaneous speed, the preset acceleration time, the first tension, the second tension, the traction ratio and the total weight of the counterweight module (400) side of the car (100); the calculation formula of the second compensation thrust is as follows: f4 =m2 (V2-V1)/(tN) +f1-F2, wherein F4 is a second compensation thrust, M2 is a total weight of the counterweight module (400) side, V2 is a rated speed of the car (100), V1 is an instantaneous speed of the car (100), t is an acceleration time, N is a traction ratio, F1 is a first tension, and F2 is a second tension;
a first compensation thrust is provided to the car (100) by the first force compensation module, a second compensation thrust is provided to the counterweight module (400) by the second force compensation module, and the duration of the first compensation thrust and the second compensation thrust are preset acceleration times.
2. The traction elevator balancing method according to claim 1, characterized in that: the calculation formula of the total mass of the side of the car (100) is as follows: m1=m1+m2+m3, where M1 is the total mass on the car (100) side, M1 is the mass of the car (100), M2 is the mass of the passenger, and M3 is the mass of the hoisting rope (300) on the car (100) side.
3. The traction elevator balancing method according to claim 2, characterized in that: the calculation formula of m3 is as follows: m3= (P-L) ×dm6, where P is the total floor number, L is the floor number on which the car (100) is located, D is the floor level, and m6 is the mass per unit length of the hoisting rope (300).
4. The traction elevator balancing method according to claim 1, characterized in that: the calculation formula of the total mass of the counterweight module (400) side is as follows: m2=m4+m5, where M2 is the total weight of the counterweight module (400), M4 is the weight of the counterweight module (400), and M5 is the weight of the counterweight module (400) side hoisting rope (300).
5. The traction elevator balancing method according to claim 4, characterized in that: the calculation formula of m5 is as follows: m5= (l×d×m6×2)/N, where L is the number of floors on which the car (100) is located, D is the floor level, m6 is the mass per unit length of the hoisting rope (300), and N is the traction ratio.
6. Traction type elevator balancing unit for traction type elevator, traction type elevator includes car (100), traction sheave (200), towline (300) and counterweight module (400), the one end of towline (300) passes traction sheave (200) and connect car (100), the other end of towline (300) is connected counterweight module (400), its characterized in that includes:
a mass detection module mounted at the bottom of the car (100) for detecting passenger mass;
a tension detection module for detecting a first tension on a traction rope (300) at the top of the car (100) and a second tension on the traction rope (300) at the top of the car (100);
a speed detection module (700) for detecting an instantaneous speed of the car (100);
a first force compensation module mounted on the car (100) for providing a first compensation thrust in a vertical direction;
a second force compensation module mounted on the counterweight module (400) for providing a second compensation thrust in a vertical direction;
the control module, the output of quality detection module electric connection control module's input, the output of pulling force detection module electric connection control module's input, the output of speed detection module (700) electric connection control module's input, the output of control module electric connection respectively the control end of first force compensation module and the control end of second force compensation module, control module uses the balanced method of traction type elevator control traction type elevator of any one of claims 1 through 5.
7. The traction type elevator balancing apparatus according to claim 6, wherein: the car safety device further comprises a braking module, wherein the braking module comprises a speed limiter and a safety clamp, the safety clamp is arranged on the car (100), and the speed limiter is connected with the safety clamp through a traction rope (300).
8. Traction type elevator, its characterized in that: comprising a traction elevator balancing apparatus according to any one of claims 6 to 7.
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