CN107188002B - Shock absorption elevator and control method thereof - Google Patents
Shock absorption elevator and control method thereof Download PDFInfo
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- CN107188002B CN107188002B CN201710500495.8A CN201710500495A CN107188002B CN 107188002 B CN107188002 B CN 107188002B CN 201710500495 A CN201710500495 A CN 201710500495A CN 107188002 B CN107188002 B CN 107188002B
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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
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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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
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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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
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
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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
- B66B11/0266—Passive systems
- B66B11/0273—Passive systems acting between car and supporting frame
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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
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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
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3292—Sensor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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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
Abstract
The invention discloses a shock-absorbing elevator which comprises a lifting device, a lift car and a shock-absorbing device, wherein the lifting device is fixedly connected with the lift car, and the shock-absorbing device is arranged between a car bottom of the lift car and a car bottom frame; the damping device comprises an upper connecting plate, an elastic material layer, a pressure sensing device, a lower connecting plate and an air chamber; the elastic material layer is arranged between the upper connecting plate and the lower connecting plate and is fixedly connected with the upper connecting plate and the lower connecting plate to form a closed air chamber; an air inlet valve and an air outlet valve are arranged on the lower connecting plate, and a pressure sensing device is arranged above the lower connecting plate. The damping elevator has the advantages of large vertical flexibility, adjustable rigidity and vertical height, capability of reducing the self-vibration frequency of the elevator car, capability of performing inflation and deflation according to the loading and unloading weight of the elevator car, capability of effectively absorbing vibration and noise transmitted to the elevator car and capability of improving the comfort of taking the elevator.
Description
Technical Field
The invention relates to the technical field of damping devices, in particular to a damping elevator and a control method thereof.
Background
Elevators are the primary means of transport vertically within a building. The problem of the comfortable riding comfort of passengers in the elevator car during the operation of the elevator is always a focus of attention. The discomfort of passengers is mainly caused by the transmission of the vibration generated by the unbalanced load of the elevator car and the vibration generated by the operation of the elevator to the elevator car. In addition, in the running process of the elevator, the vibration generated in the running process of the elevator can be caused due to insufficient installation precision of the elevator guide rail; further, vibration generated in the building is also transmitted to the elevator car, and the passenger riding comfort is similarly reduced.
In the prior art, a common adjustment method for reducing the vibration of the car caused by the unbalanced load of the car is to perform balance adjustment on the car after the installation of the elevator and before the elevator is put into operation. The balance weight is hung at the bottom of the car frame, and the balance weight number and the hanging position are adjusted to realize the balance of the car. However, the hoistway space is narrow, so that the carrying and hanging of the balance weight are inconvenient, and the labor intensity is high; in addition, hang the balanced heavy car dead weight that has increased, reduced car carrying capacity, be unfavorable for energy-concerving and environment-protective. The adjusting method in the prior art can not adjust according to the elevator state in real time, when the elevator works and runs to different floor heights, due to the weight changes of the hoisting rope, the compensating rope and the traveling cable which are hung at the car bottom, and the load of passengers or goods of the car is randomly and unevenly distributed on the car bottom, the gravity center of the car which is adjusted and balanced is changed, the unbalanced load condition of the car is caused, the vibration is aggravated, and the elevator riding experience of passengers is worsened.
In the prior art, vibration-proof rubber is arranged between the car platform and the car platform frame to reduce the vibration of the elevator. However, as the lifting height increases and the car load increases during the operation of the elevator, the deformation of the anti-vibration rubber increases, and the vibration damping effect of the anti-vibration rubber is weakened by the deformed rubber. After the anti-vibration rubber is deformed to a certain degree, the anti-vibration rubber cannot play an anti-vibration effect, and generates resonance with the car, so that the vibration of the car is intensified to further deteriorate the elevator riding experience of passengers.
Patent document (ZL 201520971190.1) discloses a high-speed elevator, and specifically discloses the damping device of this elevator, sets up air spring for damping device, and air spring sets up between rope hitch plate and upper beam, adopts air spring to replace original steel spring and yielding rubber to adjust its absorbing dynamics through air spring's atmospheric pressure. However, in the technology, a single air spring is adopted for adjustment, the adjustment direction and the adjustment force of the air spring both depend on the adjustment force of the spring, the adjustment mode is inaccurate and uncontrollable, and the damping effect is not obvious; on the other hand, the spring itself is not sensitive enough, and it needs a certain time from the moment of receiving the compression force to the moment of providing the rebound force, often can not be in time, accurate to carry out accurate timely adjustment to the vibrations of elevator.
Disclosure of Invention
In order to overcome the technical problem, the invention provides an elevator of a damping device and a control method thereof. The specific scheme of the invention comprises the following contents: a shock absorption elevator comprises a lifting device, a lift car and a shock absorption device, wherein the lifting device is fixedly connected with the lift car, and the shock absorption device is arranged between a car bottom of the lift car and a car bottom frame; the damping device comprises an upper connecting plate, an elastic material layer, a pressure sensing device, a lower connecting plate and an air chamber; the elastic material layer is arranged between the upper connecting plate and the lower connecting plate and is fixedly connected with the upper connecting plate and the lower connecting plate to form a closed air chamber; an air inlet valve and an exhaust valve are arranged on the lower connecting plate, and a pressure sensing device is arranged above the lower connecting plate. The lifting device comprises a winch, a sling, a car, a counterweight and a compensating device; the method is characterized in that: one end of the sling is connected with the lift car, the other end of the sling is connected with the counterweight after bypassing the winch, and the lift car bottom frame of the lift car is connected with the counterweight through the compensating device.
Furthermore, upper connecting plate fasteners are arranged at two ends of the upper end face of the upper connecting plate, and an upper connecting plate boss is arranged on the lower end face of the upper connecting plate; a lower connecting plate fastener is arranged on the lower end face of a lower connecting plate of the damping device, and a lower connecting plate boss is arranged on the upper end face of the lower connecting plate; the elastic material layer is composed of an elastic material outer layer and an elastic material inner layer, and the elastic material outer layer wraps the elastic material inner layer.
Furthermore, the bottom of the car bottom is provided with a car horizontal sensing device which is connected with a control device, the elevator car horizontal sensing device also comprises a gas supply device, the gas inlet valve and the gas outlet valve are connected with the gas supply device, and the gas supply device is connected with the control device
Furthermore, a door opening and closing detection device is arranged at the top of the lift car and connected with a control device, and a car bottom position sensing device is arranged at the lower part of the car bottom; the elevator car bottom leveling position detection device, the elevator car bottom leveling position upper position detection device and the elevator car bottom leveling position lower position detection device are also arranged; the shock absorption device is also provided with a pressure signal processor, and the pressure sensing device is connected with the pressure signal processor; and the pressure signal processor is connected with the alarm device.
A method of controlling the shock absorbing elevator in an unloaded state, the method comprising: firstly, enabling an elevator car to be in an idle state, detecting a horizontal state signal of the car by a car horizontal sensing device, and inputting the signal to a control device; the control device judges the balance state of the lift car according to the signal, if the lift car is in the unbalanced state, the control device controls the gas supply device and the damping device to perform gas charging and discharging actions on an air inlet valve and an air outlet valve of the damping device, and detects whether the lift car is horizontal in real time until the control device receives the signal that the lift car is horizontal, so that the balance adjusting process is completed.
The control method of the shock absorption elevator in the normal running state is characterized in that:
the method comprises the following steps: the elevator is in a normal running state, when the elevator loads and unloads passengers, the door opening and closing detection device detects the opening and closing state of the elevator door and transmits a detection signal to the control device;
step two: if the elevator door is in a closed state, ending the adjusting process; if the elevator door is in an open state, the car bottom position sensing device detects the position of the elevator and transmits a detection signal to the control device; if the control device simultaneously receives the signal of the door opening state and the signal of the detection device at the upper part of the flat bed position of the car bottom, executing a step three; if the control device simultaneously receives the signals of the door opening state and the signals of the detection device at the lower part of the flat floor position of the car floor, executing a step four; if the control device simultaneously receives the signals of the door opening state and the signals of the car bottom flat layer position detection device, executing a fifth step;
step three: the control device controls the gas supply device and the air inlet valve in the damping device to exhaust the damping device, and the elevator position adjusting process is finished and the step five is executed until the control device receives a signal of the car bottom position sensing device which detects the car bottom flat bed position detecting device;
step four: the control device controls the air supply device and the air inlet valve in the damping device to inflate the damping device until the control device receives a signal of the car platform position sensing device detecting the car platform flat bed position detecting device, the elevator position adjusting process is finished, and the fifth step is executed;
step five: the car level sensing device detects a horizontal state signal of the car and inputs the signal to the control device; the control device judges the balance state of the lift car according to the signal, and if the lift car is in a horizontal state, the adjustment process of the shock absorption lift is finished; if the lift car is in an unbalanced state, entering a sixth step;
step six: the control device controls the gas supply device and the damping device, performs gas charging and discharging actions on an air inlet valve and an air outlet valve of the damping device, detects whether the lift car is horizontal in real time, and finishes the adjustment process of the damping elevator until the control device receives a signal that the lift car is horizontal.
An alarm control method for the shock absorption elevator in an overload state is characterized in that:
the method comprises the following steps: applying 115% rated load on the car bottom, detecting a signal of a detection device at the lower part of the flat floor position of the car bottom by a car bottom position sensing device, and sending the signal to a control device; the control device controls the action of the gas supply device and the inflation of the air inlet valve of the damping device according to the signal until the control device receives the signal of the car bottom flat bed position detection device;
step two: the car level sensing device detects a horizontal state signal of the car and inputs the signal to the control device; the control device judges the balance state of the lift car according to the signal, and if the lift car is in a horizontal state, the control device executes a step four; if the lift car is in an unbalanced state, entering a step three;
step three: the control device controls the gas supply device and the damping device, performs gas charging and discharging actions on an air inlet valve and an air outlet valve of the damping device, and detects whether the lift car is horizontal in real time until the control device receives a signal that the lift car is horizontal;
step four: recording and storing a pressure value P0 in an input air chamber of the pressure signal sensing device in the pressure signal processor;
step five: when the elevator is enabled to normally operate and normally load and unload, the pressure signal sensing device inputs a pressure value P1 in the air chamber into the pressure signal processor, the pressure signal processor compares the pressure value P1 with the overload pressure P0, and if the pressure value P1 is larger than or equal to the overload pressure P0, the pressure signal processor controls the alarm device to give an overload alarm prompt and controls the elevator to prohibit operation.
The shock absorption elevator and the control method thereof can realize the following beneficial effects:
(1) The damping device comprises a sensor, and the rapid response and control of the state of the damping device are realized through the real-time induction of the sensor, so that the control mode of the damping device is more sensitive; the air pressure adjusting device is provided with the air inlet valve and the air outlet valve, the pressure and the supporting force of the car can be adjusted through air pressure adjustment of the air chamber, the requirements on materials of the adjusting device are reduced, the shockproof effect is obvious, the adjusting precision is high, the control is sensitive, and the use is convenient.
(2) The damping device has large vertical flexibility and adjustable rigidity and vertical height, can reduce the self-vibration frequency of the lift car, performs inflation and deflation work according to the loading and unloading weight of the lift car, and can effectively absorb vibration and noise transmitted to the lift car. The car damping device has variable rigidity and low natural frequency, can effectively limit the amplitude, avoids the resonance of the car and realizes vibration isolation active control. When vibration isolation active control is carried out, the height of the damping device can be automatically adjusted according to the loading and unloading conditions of the elevator, so that the center of gravity of the lift car is in a balanced state, and the riding comfort of passengers is improved.
(3) By adopting the damping elevator and the adjusting method thereof, the balance state and the position of the elevator can be automatically adjusted, the automation degree of the whole adjusting process is high, and the control device can control the state of the elevator by judging the acquisition information of the sensor. The control method can adjust the vertical height of the elevator and also can adjust the gravity center balance of the elevator car, replaces the traditional method for adjusting the balance of the elevator car by balance weight, reduces the operation difficulty and labor intensity of the balance adjustment of the elevator car, reduces the self weight of the elevator car, reduces the energy consumption of the elevator in no-load operation, and reduces the vibration generated by the unbalance of the elevator car.
(4) By adopting the shock absorption elevator and the alarm control method thereof, the judgment and the alarm of the overload condition of the elevator can be realized by comparing the pressure in the air chamber of the device with the car overload pressure value stored in the storage device; and through the adjustment to the car horizontality to and to the adjustment of car position, make the car be in flat bed and balanced state under, carry out the work of pressure acquisition again, make the detection precision of the pressure that damping device detected improve, and then promoted the rate of accuracy that the elevator reported to the police.
Drawings
Fig. 1 is a schematic structural view of an elevator provided with a shock-absorbing device in embodiment 1;
FIG. 2 is an enlarged view of a shock absorbing device shown by a circle in FIG. 1 according to embodiment 1;
FIG. 3 is a schematic view showing the arrangement of the vibration damper in the car in embodiment 1;
FIG. 4 is a control flow chart of embodiment 2 for adjusting the balance of the elevator car by using a damping device after the elevator is installed;
fig. 5 is a flow chart of the car balance control process of adjusting the car floor leveling under the normal operation state of the elevator and when the elevator operates in embodiment 3;
fig. 6 is a flow chart of the elevator overload alarm control process in the normal operation state of the elevator in embodiment 4.
Description of reference numerals: 1, a winch; 2, a sling; 3, a lift car; 4 a door opening and closing detection device; 5 an elastic element; 6, vertical columns; 7, a car wall; 8, a detection device for the upper part of the flat bed position of the car bottom; 9 a car bottom flat layer position detection device; 10 a car bottom flat layer position lower part position detection device; 11 a car bottom position sensing device; 12 a fixing device; 13 a shock-absorbing device; 14 a support device; 15 an alarm device; 16 a pressure signal processor; 17 a control device; 18 a sound-proofing device; 19 a gas supply device; 20 a compensating device; 21 counter weight; a 22-slot type frame; 23 side frame; 24 car level sensing means; 25, a shaft; 26 a guiding device; 27 car underframe; 28, a car bottom; 131 upper connecting plates; 132 an outer layer of an elastomeric material; 133 an inner layer of elastomeric material; 134 pressure sensing means; 135 lower connecting plate; 136 air chamber; 161 pressure signal processing means; 162 overload pressure value storage means; 191 a motor; 192 a compressor; 193 solenoid valve (with sensor); 1311 upper web fasteners; 1312 an upper web boss; 1351 lower web fasteners; 1352 an air inlet valve; 1353 an exhaust valve; 1354 lower connecting plate boss
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Specific example 1:
an elevator provided with a damping device as shown in fig. 1 comprises a hoisting machine 1, a guide device 26, a hoisting rope 2, a car 3, a counterweight 21, and a compensating device 20. One end of the sling 2 is connected with a car 3 which can move vertically in the elevator shaft 25, and the other end of the sling is connected with a counterweight 21 which can move vertically in the elevator shaft after bypassing the windlass and the guiding device. The car 3 is connected to a counterweight 21 by means of a compensating device 20.
The damper 13 is provided between the car platform 28 and the platform frame 27, and as shown in fig. 2 and 3, the damper 13 is provided at each of four corners in the space between the car platform 28 and the platform frame 27. The shock-absorbing device 13 includes an upper connecting plate 131, an outer layer 132 of elastic material, an inner layer 133 of elastic material, a pressure sensing device 134, a lower connecting plate 135, and a gas chamber 1311. Connecting plate fasteners 1311 are arranged at two ends of the upper end face of the upper connecting plate 131 of the shock absorption device, and an upper connecting plate boss 1312 is arranged on the lower end face of the upper connecting plate 131. The both ends of damping device's lower connecting plate 135's lower terminal surface are provided with connecting plate fastener 1351, and lower connecting plate 135's up end is provided with lower connecting plate boss 1354, and admission valve 1352, discharge valve 1353 pass lower connecting plate 135 and set up, and lower connecting plate boss 1354 top is provided with pressure sensing device 134, pressure sensor sets up inside the air chamber, discharge valve 1353 is provided with two, sets up respectively in pressure sensor's both sides, admission valve 1352 also is provided with two, sets up in discharge valve's the outside. An outer layer 132 of elastic material and an inner layer 133 of elastic material are arranged between the upper connecting plate 131 and the lower connecting plate 135, the upper ends of the outer layer 132 of elastic material and the inner layer 133 of elastic material are connected with the lower end face of the upper connecting plate boss 1312, the lower ends of the outer layer 132 of elastic material and the inner layer 133 of elastic material are connected with the upper end face of the lower connecting plate boss 1354, the outer layer 132 of elastic material wraps the outer portion of the inner layer 133 of elastic material, the upper connecting plate boss 1312 and the lower connecting plate boss 1354 can prevent the outer layer 132 of elastic material from moving, and the inner spaces of the inner layer 133 of elastic material, the upper connecting plate 131 and the lower connecting plate 135 form a closed air chamber 136.
The pressure sensing device 134 arranged on the lower connecting plate boss 1354 is connected with the pressure signal processor 16, and the pressure signal processor 16 comprises a pressure signal processing device 161 and an overload pressure value storage device 162; the pressure signal processor 16 is connected to the alarm device 15. The intake valve 1352 and the exhaust valve 1353 of the lower connection plate 135 are connected to the solenoid valve (with sensor) 193 in the gas supply device 19. The gas supply device 19 includes a motor 191, a compressor 192, and a solenoid valve (with sensor) 193; the gas supply device 19 is connected to the control device 17. The pressure sensing device 134 arranged on the lower connecting plate boss 1354 is connected with the pressure signal processor 16, and the pressure signal processor 16 comprises a pressure signal processing device 161 and an overload pressure value storage device 162; the pressure signal processor 16 is connected to the alarm device 15.
The bottom of the car bottom 28 is provided with a side frame 23, the lower surface of the side frame 23 is provided with a car level sensing device 24, the car level sensing device 24 is connected with the control device 17, and the level sensing device 24 is used for detecting the balance of the car. The side frame 23 is further provided with a fixing device 12 at the lower part thereof, and the fixing device 12 is a predetermined pad for providing a support between the side frame 23 and the groove-shaped frame 22 when the elastic material outer layer 132 and the elastic material inner layer 133 are replaced. A groove-shaped frame is arranged at the upper part of the car underframe 27, a supporting device 14 is arranged on the groove-shaped frame 22, and the supporting device 14 can prevent the car underframe 28 from sinking after the damping device 13 fails.
The top of car 3 is provided with the switch door detection device 4 that detects car switch door, switch door detection device 4 is connected with controlling means 17, detects car 3 switch door state. The car 3 is provided with an elastic element 5, and the elastic element 5 is arranged between the car wall 7 and the upright post 6 and plays a role of preventing the car wall 7 from inclining.
The lower part of the car bottom 28 is provided with a car bottom position sensing device 11; a car bottom flat position detection device 9 is arranged at a horizontal position corresponding to the sensing device, a car bottom flat position upper part position detection device 8 is arranged above the horizontal position corresponding to the sensing device, and a car bottom flat position lower part position detection device 10 is arranged below the horizontal position corresponding to the sensing device; the car bottom position sensing device 11 is matched with a car bottom flat layer position detection device 9, a car bottom flat layer position upper part position detection device 8 and a car bottom flat layer position lower part position detection device 10 which are arranged among the floors; the platform position sensing device 11 is connected with the control device 17.
The working principle of the invention is as follows: when the hoist 1 lifts the cage 3 by the hoist rope 2 to move vertically in the hoistway 25, vibration generated during operation is transmitted to the cage platform 27. Because the car underframe 27 and the car platform 28 are connected through the damping device 13, the air in the air chamber 136 of the damping device 13, the inner layer 133 of the elastic material and the outer layer 132 of the elastic material can isolate and weaken the transmission of vibration between the car platform 27 and the car platform 28. The rigidity of the damping device 13 is further adjusted by adjusting the air inlet valve 1352 and the air outlet valve 1353 of the damping device and adjusting the air pressure in the air chamber 136, thereby ensuring the damping effect of the car 3 under different loading conditions. In addition, the rigidity of the damping device 13 is adjusted, so that the resonance of the car 3 can be effectively reduced, and the passenger riding comfort is improved.
Specific example 2:
in this embodiment, an operation of the damping device 13 for adjusting the balance of the car 3 will be described with reference to the elevator provided with the damping device in embodiment 1, and with reference to the control flowchart of adjusting the balance of the car using the damping device after completion of installation of the elevator in fig. 4. After the elevator is installed, the lift car 3 is in an unloaded state and is in a base station flat floor position in an unloaded state. The car level sensing device 24 acquires a car 3 level state signal and inputs the signal to the control device 17. The control device 17 judges the state of balance of the car 3 according to the car 3 horizontal state signal input, when judging that the car 3 is in the unbalanced state, the control device 17 controls the air supply device 19 and controls the air inlet valve 1352 and the air outlet valve 1353 in the damping device 13 to charge and discharge the damping device 13, and adjusts the level of the car 3; in the process, the car level sensing device 24 continuously inputs the balance state signal of the car 3 into the value control device 17 in real time, the adjustment process is repeated in a circulating mode until the control device 17 judges that the input car 3 is horizontal from the input signal of the car level sensing device 24, the no-load balance adjustment of the car 3 is completed after the elevator is installed, and the process is finished. When the elevator is installed, the lift car 3 is in the base station flat position in an empty load manner. When the car level sensor 24 detects that the level of the car 3 is horizontal, a signal indicating that the car 3 is horizontal is input to the controller 17, and the car 3 balance adjustment process is completed.
Specific example 3:
in this embodiment, an elevator provided with the vibration damping device in embodiment 1 is used, and the operation of the vibration damping device 13 for adjusting the leveling of the car 3 and the balancing control of the car 3 during the operation of the elevator will be described with reference to the flowchart of the process of adjusting the leveling of the car floor and the balancing control of the car during the operation of the elevator in the normal operation state of the elevator shown in fig. 5. In the normal running process of the elevator, passengers are loaded and unloaded by the lift car 3, and the height of the damping device 13 with adjustable height is changed due to different loading weights in the lift car 3, so that the height of the lift car bottom 28 is changed along with the change of the height of the lift car bottom, the position of a flat bed is changed, and the lift car 3 is in an unbalanced state; or the car 3 is loaded and unloaded with passengers, the way of the passengers' station is different, which causes the unbalance of the car 3 to occur. When the elevator loads and unloads passengers, the door opening and closing detection device 4 located on the car 3 operates to detect the state of the opened and closed doors of the car 3, and transmits a detection signal to the control device 17.
When the control device 17 receives a signal that the car 3 is in the door-open state detected by the door opening and closing detection device 4 and the car platform position sensing device 11 detects a signal of the car platform flat position upper portion position detection device 8 at the car platform flat position, the car platform position sensing device 11 sends the signal to the control device 17. The controller 17 controls the operation of the gas supplier 19 based on the car 3 door opening signal and the car 3 position signal inputted thereto, the motor 191 in the gas supplier 19 drives the compressor 192, and the gas in the gas chamber 136 of the damper 13 is discharged to the gas supplier 19 through the exhaust valve 1353 in the lower connecting plate 135 by the solenoid valve (belt sensor) 193, and the position adjustment process of the car 3 is completed when the controller 17 receives the signal of the car floor position detector 9 detected by the car floor position sensor 11.
When the door opening and closing detection device 4 detects that the car 3 is in the door opening state and the car bottom position sensing device 11 detects the car bottom flat position lower position detection device signal 10 at the car bottom flat position, the car bottom position sensing device 11 sends the signal to the control device 17. The controller 17 controls the operation of the air supplier 19 based on the door opening signal of the car 3 and the position signal of the car bottom 28, and the motor 191 in the air supplier 19 drives the compressor 192 to fill the air chamber 136 of the damper 13 with air through the solenoid valve (with sensor) 193 and the air intake valve 1352 in the lower link plate 135 until the controller 17 receives the signal of the car bottom position detector 9 detected by the car bottom position sensor 11, thereby ending the adjustment process of the position of the car bottom 28.
When the door opening and closing detection device 4 detects that the car 3 is in a door opening state, and the car platform position sensing device 11 detects that the car platform is located at the car platform flat floor position, the control device 17 enters a step of judging whether the car 3 is horizontal according to signals input by the car platform horizontal sensing device 24. When the input cage 3 is in a balanced state, directly finishing the balance adjustment of the position of the cage bottom 28 and the cage 3; when the input car 3 is in an unbalanced state, the control device 17 controls the gas supply device 19 to charge and discharge gas into the air chamber 136 of the damping device 13 to adjust the balance of the car 3, and after the control device 17 receives a signal that the car level sensing device 24 inputs that the car 3 is in a horizontal state, the control device 17 controls the gas supply device 19 to stop working, and the balance adjustment of the position of the car bottom 28 and the car 3 is finished; in the process of balancing and adjusting the car 3, the car bottom position sensing device 11 always detects a signal of the car bottom flat bed position detection device 9 and inputs the signal into the control device 17 in real time.
When the door open/close detection device 4 detects that the car 3 is in the closed state, the control device 17 and the gas supply device 19 are not operated.
Specific example 4:
in this embodiment, an elevator provided with a damping device in embodiment 1 is used, and an elevator operation overload alarm operation performed by the damping device is described with reference to an elevator overload alarm control processing flowchart shown in fig. 6 in a normal operation state of the elevator. The elevator is qualified after being installed and debugged and qualified in test operation, and in the state, the lift car 3 is in an idle load balance state and the leveling position of the idle load car bottom 28 is accurately adjusted. Further, 115% of rated load is uniformly applied to the elevator platform 28 which is installed and qualified in test operation, and after the 115% of rated load is applied to the elevator platform 28, the platform position sensing device 11 detects the signal 10 of the platform flat position lower part position detection device at the platform flat position, and simultaneously the platform position sensing device 11 sends the signal to the control device 17. The controller 17 controls the operation of the gas supply device 19 based on the inputted position signal of the platform 28, the motor 191 in the gas supply device 19 drives the compressor 192, and the gas is charged into the gas chamber 136 of the damper device 13 through the solenoid valve (with sensor) 193 and the gas inlet valve 1352 in the lower connection plate 135, and the leveling position adjustment process of the platform 28 is completed when the controller 17 receives the signal of the platform position detecting device 9 detected by the platform position sensing device 11.
After the floor position adjustment process of the platform 28 with the 115% rated load is completed, the control device 17 determines whether to perform the car 3 balance adjustment according to the car 3 balance state signal input by the car level sensing device 24. When the input cage 3 is already in a balanced state, the adjustment of the position of the platform 28 and the balance of the cage 3 is finished. When the input car 3 is in an unbalanced state, the control device 17 controls the gas supply device 19 to charge and discharge gas into and from the gas chamber 136 of the damping device 13 to adjust the balance of the car 3, and after the control device 17 receives a signal that the car level sensing device 24 inputs that the car 3 is in a horizontal state, the control device 17 controls the gas supply device 19 to stop working, and the balance adjustment of the position of the car bottom 28 and the car 3 is finished. In the process of balancing and adjusting the car 3, the car bottom position sensing device 11 always detects the signal of the car bottom flat bed position detecting device 9 and inputs the signal into the control device 17 in real time.
After the floor leveling position adjustment and the car 3 balance adjustment of the platform 28 with the 115% rated load are completed, the overload pressure value storage device 162 in the pressure signal processor 16 records and stores the pressure P in the air chamber 136 of each damping device 13 in the overload state of the car 3, which is input by the pressure signal sensing device 161 0 And the pressure signal processor 16 finishes the acquisition and storage of the overload pressure value of the car 3.
After the pressure signal processor 16 acquires and stores the overload pressure value of the elevator car 3, the elevator car 3 normally runs. When the car 3 is normally loaded and unloaded, the pressure signal sensing device 134 arranged on the boss 1354 of the connecting plate at the lower part of the damping device 13 inputs a pressure value P1 generated in the air chamber 136 when the car 3 is loaded and unloaded into the pressure signal processing device 161, the pressure signal processing device 161 compares the pressure value P1 with the car 3 overload pressure P0 in the overload pressure value storage device 162, and when the pressure value P1 is greater than or equal to P0, the pressure signal processor 16 controls the alarm device 15 to give an alarm for over-loading the car 3 and controls the elevator car 3 to prohibit operation; when the car 3 is in the overload warning process, once the pressure signal processing device 161 detects that P1 is smaller than P0, the pressure signal controller 16 controls the warning device 15 to stop warning, and the car 3 resumes normal operation, otherwise, the car 3 overload warning is continuously executed and the elevator car 3 is controlled to prohibit normal operation.
When the car 3 is normally loaded and unloaded, the pressure signal sensing device 134 arranged on the boss 1354 of the connecting plate at the lower part of the damping device 13 inputs a pressure value P1 generated in the air chamber 136 when the car 3 is loaded and unloaded into the pressure signal processing device 161, the pressure signal processing device 161 compares the pressure value P1 with the car 3 overload pressure P0 in the overload pressure value storage device 162, and when P1 is smaller than P0, the alarm device 15 does not operate, and the car 3 normally operates.
The embodiments and examples of the present invention described above are merely illustrative examples of the embodiments of the present invention, and the scope of the present invention is not limited to the embodiments and examples described above, and any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art within the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. An alarm control method for a shock absorption elevator in an overload state is characterized by comprising the following steps: a shock absorption elevator comprises a lifting device, a lift car and a shock absorption device, wherein the lifting device is fixedly connected with the lift car, and the shock absorption device is arranged between a car bottom of the lift car and a car bottom frame; the damping device comprises an upper connecting plate, an elastic material layer, a pressure sensing device, a lower connecting plate and an air chamber; the elastic material layer is arranged between the upper connecting plate and the lower connecting plate and is fixedly connected with the upper connecting plate and the lower connecting plate to form a closed air chamber; an air inlet valve and an air outlet valve are arranged on the lower connecting plate, and a pressure sensing device is arranged above the lower connecting plate;
the car bottom is provided with a car horizontal sensing device which is connected with a control device, and the car bottom further comprises a gas supply device, wherein the gas inlet valve and the gas outlet valve are connected with the gas supply device, and the gas supply device is connected with the control device;
a car bottom position sensing device is arranged at the lower part of the car bottom; the elevator car bottom leveling position detection device, the elevator car bottom leveling position upper position detection device and the elevator car bottom leveling position lower position detection device are also arranged;
the shock absorption device is also provided with a pressure signal processor, and the pressure sensing device is connected with the pressure signal processor; the pressure signal processor is connected with the alarm device;
the method comprises the following steps:
the method comprises the following steps: applying 115% rated load on the car bottom, detecting a signal of a detection device at the lower part of the flat floor position of the car bottom by a car bottom position sensing device, and sending the signal to a control device; the control device controls the action of the gas supply device and the inflation of the air inlet valve of the damping device according to the signal until the control device receives the signal of the car bottom flat bed position detection device;
step two: the car level sensing device detects a horizontal state signal of the car and inputs the signal to the control device; the control device judges the balance state of the lift car according to the signal, and if the lift car is in a horizontal state, the step four is executed; if the lift car is in an unbalanced state, entering a step three;
step three: the control device controls the gas supply device and the damping device, performs gas charging and discharging actions on an air inlet valve and an air outlet valve of the damping device, and detects whether the lift car is horizontal in real time until the control device receives a signal that the lift car is horizontal;
step four: recording and storing a pressure value P0 in an input air chamber of the pressure signal sensing device in the pressure signal processor;
step five: when the elevator is enabled to normally run and normally loaded and unloaded, the pressure signal sensing device inputs a pressure value P1 in the air chamber into the pressure signal processor, the pressure signal processor compares the pressure value P1 with an overload pressure P0, and if the pressure value P1 is larger than or equal to the overload pressure P0, the pressure signal processor controls the alarm device to give an overload alarm prompt and controls the elevator to prohibit running.
2. The alarm control method for the shock-absorbing elevator in the overload state according to claim 1, characterized in that: the lifting device comprises a winch, a sling, a car, a counterweight and a compensating device; the method is characterized in that: one end of the sling is connected with the lift car, the other end of the sling is connected with the counterweight after bypassing the winch, and the lift car bottom frame of the lift car is connected with the counterweight through the compensating device.
3. The alarm control method for the shock-absorbing elevator in the overload state according to claim 2, characterized in that: upper connecting plate fasteners are arranged at two ends of the upper end face of the upper connecting plate, and an upper connecting plate boss is arranged on the lower end face of the upper connecting plate; a lower connecting plate fastener is arranged on the lower end face of a lower connecting plate of the damping device, and a lower connecting plate boss is arranged on the upper end face of the lower connecting plate; the elastic material layer is composed of an elastic material outer layer and an elastic material inner layer, and the elastic material outer layer wraps the elastic material inner layer.
4. The alarm control method for the shock-absorbing elevator in the overload state according to claim 1, wherein: the top of car is provided with switch door detection device, switch door detection device is connected with controlling means.
Priority Applications (2)
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| CN201710500495.8A CN107188002B (en) | 2017-06-27 | 2017-06-27 | Shock absorption elevator and control method thereof |
| PCT/CN2017/116584 WO2019000857A1 (en) | 2017-06-27 | 2017-12-15 | Vibration-reduced elevator and control method thereof |
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| CN201710500495.8A CN107188002B (en) | 2017-06-27 | 2017-06-27 | Shock absorption elevator and control method thereof |
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| CN107188002B true CN107188002B (en) | 2023-03-14 |
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| CN107188002B (en) * | 2017-06-27 | 2023-03-14 | 广州广日电梯工业有限公司 | Shock absorption elevator and control method thereof |
| CN108178033A (en) * | 2018-03-15 | 2018-06-19 | 西继迅达（许昌）电梯有限公司 | A kind of compound building elevator landing apptss |
| CN108569598A (en) * | 2018-07-08 | 2018-09-25 | 广东皇冠电梯集团有限公司 | A kind of horizontal automatic deviation correction levelling device operating system of Novel elevator carrying cabin |
| CN108821045B (en) * | 2018-07-10 | 2020-04-03 | 奥特朗博电梯有限公司 | Novel elevator releveling device |
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| CN107188002A (en) | 2017-09-22 |
| WO2019000857A1 (en) | 2019-01-03 |
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