CN114057059A - Speed induction type building engineering lifting equipment based on magnetostrictive principle - Google Patents
Speed induction type building engineering lifting equipment based on magnetostrictive principle Download PDFInfo
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- CN114057059A CN114057059A CN202210029178.3A CN202210029178A CN114057059A CN 114057059 A CN114057059 A CN 114057059A CN 202210029178 A CN202210029178 A CN 202210029178A CN 114057059 A CN114057059 A CN 114057059A
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- car
- speed sensing
- permanent magnet
- pressure
- sliding plate
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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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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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
- B66B1/46—Adaptations of switches or switchgear
- B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
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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
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0461—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with rack and pinion gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
- B66B9/022—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rack and pinion drives
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control 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
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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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
- F16F2230/00—Purpose; Design features
- F16F2230/06—Fluid filling or discharging
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a speed induction type building engineering lifting device based on a magnetostrictive principle, which comprises a pressure-operated magnetic fluid damping buffer assembly, a wind pressure excitation type speed induction protection assembly, a pneumatic contraction type eddy current brake assembly and a stable driving lifting assembly. The invention belongs to the technical field of building construction elevators, and particularly relates to a speed induction type building engineering lifting device which is high in safety, strong in stability, high in efficiency and energy-saving and based on a magnetostrictive principle.
Description
Technical Field
The invention belongs to the technical field of building construction elevators, and particularly relates to a speed induction type building engineering lifting device based on a magnetostrictive principle.
Background
In the construction of high-rise building engineering, a common building elevator vertically conveys constructors and building materials, and due to the reasons of improper use or personnel management of the elevator and the like, major safety accidents often occur in the construction process, and are often group injury and group death accidents, so that the personal safety and the engineering progress of the constructors are seriously influenced.
In the existing building elevator, a buffer is lacked between the bottom of a car and the ground, and the bottom of the car can generate strong impact with the ground when the descending speed of the car is too high, so that personnel can be easily injured, building materials can be easily scattered, the car can be easily damaged, and the service life of the car can be influenced; the conventional building elevator has insufficient braking function, and the car is easy to fall after a lifting unit fails, so that the safety degree of the elevator is seriously insufficient; after a car falling accident occurs, the existing building elevator does not always have a necessary protection unit to protect the car, and casualties are inevitably caused once the car falls; during the lifting of the building elevator, the friction force between the mechanical transmission structures is large, so that the lifting difficulty is increased, and unnecessary electric power waste is caused.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the speed induction type building engineering lifting equipment based on the magnetostrictive principle, which has high safety, strong stability, high efficiency and energy conservation, and solves the problem that the safety of the existing building lifting equipment is seriously insufficient.
The technical scheme adopted by the invention is as follows: the invention provides a speed sensing type building engineering lifting device based on a magnetostrictive principle, which comprises a stable driving lifting assembly, wherein the stable driving lifting assembly comprises a lifting device, a supporting protection device, a car and a sliding plate, the car is arranged on the sliding plate, the lifting device is arranged at the top of the sliding plate, and the sliding plate is arranged on the supporting protection device; the pressure-operated magnetic fluid shock absorption buffer assembly is arranged right below the lift car and comprises a magnetic fluid buffer device, elastic supporting devices and supporting columns, the supporting columns are arranged on two sides of the magnetic fluid buffer device, and the elastic supporting devices are arranged between the magnetic fluid buffer device and the supporting columns; the wind pressure excitation type speed sensing protection assembly is arranged above the pressing type magnetic fluid damping buffer assembly and comprises an externally-hung wind power generation assembly, a speed sensing assembly and a protection air bag, the externally-hung wind power generation assembly is arranged on the bottom wall of the lift car, the speed sensing assembly is arranged on one side of the externally-hung wind power generation assembly, the bottom end of the speed sensing assembly is flush with the bottom end of the support column, and the protection air bag is arranged right below the lift car; and the pneumatic contraction type eddy current brake assembly is arranged on the bottom wall of the lift car and comprises an eddy current brake device, an air pressure driving device and a shell, the shell is arranged on the bottom wall of the lift car, the air pressure driving device is arranged in the shell, and the eddy current brake device penetrates through the air pressure driving device.
As a preferable aspect of the present invention, wherein: the magnetic fluid buffer device comprises a flexible contact pad, a piston rod, a first permanent magnet, a pressure bearing cavity, a rubber spring and a second permanent magnet, wherein the flexible contact pad is arranged at the upper end of the piston rod, the first permanent magnet is arranged at the lower end of the piston rod, the piston rod extends out of the pressure bearing cavity, the rubber spring is arranged on the bottom wall of the pressure bearing cavity, the rubber spring is arranged right opposite to the first permanent magnet, and the second permanent magnet is arranged around the periphery of the rubber spring.
As a preferable aspect of the present invention, wherein: the elastic supporting device comprises a compression cavity, an inner ring partition plate, an outer ring partition plate, an inflation cavity, an inflation tube and a supporting air bag, wherein the compression cavity and the inflation cavity are arranged around the periphery of the pressure-bearing cavity, the inflation cavity is arranged above the compression cavity, the inner ring partition plate and the outer ring partition plate are arranged on the side wall of the compression cavity, one end of the inflation tube is connected with the inflation cavity, the other end of the inflation tube is connected with the supporting air bag, the supporting air bag is arranged on the supporting column, and the pressure-bearing cavity and the compression cavity are filled with magnetic fluid.
As a preferable aspect of the present invention, wherein: the outer hanging type wind power generation assembly comprises an air duct, a stator, a rotor, a first rotating shaft and fan blades, wherein the air duct is arranged on the bottom wall of the lift car, one end of the first rotating shaft is connected with the bottom wall of the lift car, the other end of the first rotating shaft is connected with the fan blades, the stator is arranged on the inner wall of the air duct, the rotor is arranged on the first rotating shaft, and the first rotating shaft can rotate freely.
As a preferable aspect of the present invention, wherein: the speed sensing assembly comprises a waveguide tube, a magnetic ring floater, a fixed arm, a signal processor and a fixed top plate, the top end of the waveguide tube is connected with the fixed top plate, the bottom end of the waveguide tube is connected with the signal processor, the waveguide tube penetrates through the magnetic ring floater, the magnetic ring floater can slide along the waveguide tube downwards, one end of the fixed arm is connected with the car, and the other end of the fixed arm is connected with the magnetic ring floater.
As a preferable aspect of the present invention, wherein: the eddy current braking device comprises an elastic rod cap, a reset spring, a telescopic rod, a permanent magnetic pole and an armature coil, wherein one end of the telescopic rod is connected with the elastic rod cap, the other end of the telescopic rod is connected with the permanent magnetic pole, the reset spring is sleeved on the telescopic rod, and the armature coil is arranged on the permanent magnetic pole.
As a preferable aspect of the present invention, wherein: the pneumatic driving device comprises a signal receiver, a high-pressure gas storage box, a control valve, an air guide pipe and a cavity, the high-pressure gas storage box is arranged in the shell, the control valve is arranged on the high-pressure gas storage box, one end of the air guide pipe is connected with the control valve, the other end of the air guide pipe is connected with the cavity, and the signal receiver is arranged on the bottom wall of the shell.
As a preferable aspect of the present invention, wherein: the lifting device comprises a driving motor, a speed reducer, a second rotating shaft, a gear, a rack, a clamping plate, a fixed ball, a movable ball and a buffering body, wherein the driving motor is fixedly connected to the sliding plate, one end of the speed reducer is connected with the driving motor, the other end of the speed reducer is connected with the second rotating shaft, the gear is arranged on the second rotating shaft, the rack is meshed with the gear, the clamping plate is arranged on two sides of the sliding plate, the fixed ball is arranged on the side wall of the clamping plate, the buffering body is arranged on the side wall of the sliding plate, the movable ball is arranged on the buffering body, and the fixed ball and the movable ball can roll freely.
As a preferable aspect of the present invention, wherein: the buffer body comprises an installation block, a permanent magnet III, a permanent magnet IV, a limiting spring, a compression spring and a suspension shell, wherein the suspension shell sliding plate is arranged on the side wall of the suspension shell, the permanent magnet IV is arranged on the inner wall of the suspension shell, the installation block extends out of the suspension shell, one end of the installation block, which is arranged in the permanent magnet III, is arranged in the suspension shell, the limiting spring surrounds the periphery of the installation block, one end of the compression spring is connected with the permanent magnet III, and the other end of the compression spring is connected with the inner wall of the suspension shell.
As a preferable aspect of the present invention, wherein: the supporting and protecting device comprises a slope, a protecting frame and a main frame body, wherein the slope is arranged at the bottom of the side edge of the protecting frame, and the main frame body is arranged in the protecting frame.
As a preferable aspect of the present invention, wherein: the rack is arranged on the main frame body.
Preferably, a central controller is arranged in the car to realize the functions of lifting and braking of the equipment, and the model of the central controller is STC12C 6082.
The speed induction type building engineering lifting equipment based on the magnetostrictive principle, which is high in safety, strong in stability, high in efficiency and energy-saving, has the following beneficial effects:
(1) based on the principle of air pressure and hydraulic pressure junction, the magnetic fluid is used for replacing traditional hydraulic oil to serve as a hydraulic medium, the permanent magnet is used for providing a stable magnetic field, and under the condition that a power supply and a driving unit are not needed to be added, the inner ring partition plate and the outer ring partition plate are used for generating damping force on the magnetic fluid, so that the damping and buffering strength of the magnetic fluid is improved.
(2) Under the condition of no air pump and no driving unit, the extrusion force generated by the descending of the car on the flexible contact pad is utilized to realize the quick inflation of the supporting air bag, so that the supporting air bag can be quickly expanded to buffer the impact force generated by the falling of the car.
(3) When the lift car descends, the rotor is driven to rotate to cut the magnetic induction lines by natural wind pressure to generate electric energy, the generated electric energy is transmitted to the waveguide tube, the magnetic ring floater is magnetized by an external magnetic field generated by the waveguide tube when descending by using a magnetostrictive principle, so that torsion waves which are quickly transmitted along the waveguide tube are generated, the descending speed of the lift car can be accurately calculated based on torsion wave signals received twice, and whether emergency braking or protective measures are necessary or not is judged.
(4) When the lift car descends rapidly, under the condition of no driving unit, eddy current is formed between the permanent magnetic poles and the main frame body, the eddy current forms braking force in the reverse direction of the descending direction of the lift car, the descending speed of the lift car is reduced, when the descending speed of the lift car is reduced gradually, the eddy current braking force generated by the permanent magnetic poles is reduced gradually, and at the moment, the armature coils are used for generating auxiliary exciting current to carry out forward excitation, so that the level of the braking force is maintained.
(5) The fixed balls and the movable balls on the clamping plate can effectively reduce the friction force between the clamping plate and the main frame body during the rising period, and reduce the energy consumption during the rising period of the lift car.
(6) The repulsive force between the permanent magnet III and the permanent magnet IV in the buffer body is utilized, the impact force generated between the lift car and the main frame body in the lift process can be effectively buffered, the shaking amplitude of the lift car is reduced, and the overall safety of the equipment is improved.
(7) When the car falls, the protection gasbag on ground can expand fast, reduces the impact force that the car fell to the ground and produces, plays the guard action.
(8) Spacing spring and compression spring can effectively reduce the permanent magnet three and receive strong pressure, avoid the permanent magnet three to contact the permanent magnet four under strong pressure effect simultaneously to produce the collision and cause self to damage.
Drawings
Fig. 1 is a schematic view a of the overall structure of a magnetostrictive principle-based speed sensing type lifting device for construction engineering according to the present invention;
fig. 2 is a schematic diagram B of the overall structure of a speed sensing type lifting device for construction engineering based on the magnetostrictive principle according to the present invention;
fig. 3 is a schematic view C of the overall structure of a speed sensing type lifting device for construction engineering based on the magnetostrictive principle according to the present invention;
FIG. 4 is a schematic view of the overall structure of the pressure-actuated magnetic fluid damping and buffering assembly according to the present invention;
FIG. 5 is a schematic diagram A of the overall structure of the velocity sensing assembly according to the present invention;
fig. 6 is a partially enlarged view of a portion a of fig. 5;
FIG. 7 is a schematic view of the overall structure of the externally-hung wind power generation assembly according to the present invention;
FIG. 8 is a perspective view of a pneumatically retracted eddy current brake assembly in accordance with the present invention;
FIG. 9 is a schematic view of the overall structure of a pneumatic contracting type eddy current brake assembly according to the present invention;
fig. 10 is a schematic view of the overall structure of the lifting device according to the present invention;
fig. 11 is a top view of the lifting device of the present invention;
fig. 12 is a partial enlarged view of a portion B of fig. 11;
FIG. 13 is a schematic view of the overall structure of the buffer according to the present invention;
fig. 14 is a schematic block diagram of a speed sensing type construction work lifting apparatus based on a magnetostrictive principle according to the present invention;
fig. 15 is a block circuit diagram of a speed sensing type construction work lifting apparatus based on the magnetostrictive principle according to the present invention;
fig. 16 is a circuit diagram of a signal processor according to the present invention;
fig. 17 is a circuit diagram of a motor driving circuit of a speed sensing type lifting apparatus for construction engineering based on the magnetostrictive principle according to the present invention.
Wherein, 1, a pressure-operated magnetic fluid damping and buffering component, 11, a magnetic fluid buffering device, 111, a flexible contact pad, 112, a piston rod, 113, a first permanent magnet, 114, a pressure-bearing cavity, 115, a rubber spring, 116, a second permanent magnet, 12, an elastic supporting device, 121, a compression cavity, 122, an inner ring clapboard, 123, an outer ring clapboard, 124, an inflation cavity, 125, an inflation tube, 126, a supporting air bag, 13, a supporting column, 2, a wind pressure excitation type speed induction protecting component, 21, an externally-hung wind power generation component, 211, an air duct, 212, a stator, 213, a rotor, 214, a first rotating shaft, 215, a fan blade, 22, a speed induction component, 221, a waveguide tube, 222, a magnetic ring floater, 223, a fixing arm, 224, a signal processor, 225, a fixing top plate, 23, a protecting air bag, 3, a pneumatic contraction type eddy current braking component, 31, an eddy current braking device, 311, an elastic rod cap, 312. the device comprises a return spring 313, an expansion link 314, a permanent magnetic pole 315, an armature coil 32, a pneumatic driving device 321, a signal receiver 322, a high-pressure gas storage tank 323, a control valve 324, an air guide pipe 325, a cavity 33, a shell 4, a stable driving lifting component 41, a lifting device 411, a driving motor 412, a reducer 413, a second rotating shaft 414, a gear 415, a rack 416, a clamping plate 417, a fixed ball 418, a movable ball 419, a buffer body 4191, a mounting block 4192, a third permanent magnet 4193, a fourth permanent magnet 4194, a limiting spring 4195, a compression spring 4196, a suspension shell 42, a supporting protection device 421, a slope 422, a protection frame 423, a main frame body 43, a car 44 and a sliding plate.
In the circuit diagram of the central controller in fig. 15, +5V is the power supply of the circuit, GND is the ground, XTAL1 is the crystal oscillator, C7 and C8 are the oscillation starting capacitors of the crystal oscillator, P1 is the connection port between the driving motor and the central controller, 36 is the connection port between the signal processor and the central controller, and 37 is the connection port between the signal receiver and the central controller; in the circuit diagram of the signal processor of fig. 16, R1-R7 are resistors, C1-C6 are capacitors, INA128UA/2K5 is an instrumentation amplifier, MAX4527 is a chip, OP37GSZ is an operational amplifier, TL712CPWR is an analog comparator, and SN74LS221DR is a monostable multivibrator; in the motor driving circuit diagram of fig. 17, BTS7970B is a dc motor driving chip, R8 to R17 are resistors, C9 and C10 are filter capacitors, D1 and D2 are diodes, and a motor is a motor.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As a new embodiment of the present invention, as shown in fig. 1-3, the present invention provides a speed sensing type building engineering lifting device based on the magnetostrictive principle, which includes a stable driving lifting assembly 4, the stable driving lifting assembly 4 includes a lifting device 41, a supporting protection device 42, a car 43 and a sliding plate 44, the car 43 is disposed on the sliding plate 44, the lifting device 41 is disposed on the top of the sliding plate 44, and the sliding plate 44 is disposed on the supporting protection device 42; the pressure-operated magnetic fluid shock absorption and buffer assembly 1 is arranged right below the lift car 43, the pressure-operated magnetic fluid shock absorption and buffer assembly 1 comprises a magnetic fluid buffer device 11, elastic supporting devices 12 and supporting columns 13, the supporting columns 13 are arranged on two sides of the magnetic fluid buffer device 11, and the elastic supporting devices 12 are arranged between the magnetic fluid buffer device 11 and the supporting columns 13; the wind pressure excitation type speed sensing protection assembly 2 is characterized in that the wind pressure excitation type speed sensing protection assembly 2 is arranged above the pressure type magnetic fluid damping buffer assembly 1, the wind pressure excitation type speed sensing protection assembly 2 comprises an externally-hung wind power generation assembly 21, a speed sensing assembly 22 and a protection air bag 23, the externally-hung wind power generation assembly 21 is arranged on the bottom wall of the lift car 43, the speed sensing assembly 22 is arranged on one side of the externally-hung wind power generation assembly 21, the bottom end of the speed sensing assembly 22 is flush with the bottom end of the support column 13, and the protection air bag 23 is arranged right below the lift car 43; and the pneumatic contraction type eddy current brake assembly 3, the pneumatic contraction type eddy current brake assembly 3 is arranged on the bottom wall of the lift car 43, the pneumatic contraction type eddy current brake assembly 3 comprises an eddy current brake device 31, an air pressure driving device 32 and a shell 33, the shell 33 is arranged on the bottom wall of the lift car 43, the air pressure driving device 32 is arranged in the shell 33, and the eddy current brake device 31 penetrates through the air pressure driving device 32.
As shown in fig. 4, the magnetic fluid buffering device 11 includes a flexible contact pad 111, a piston rod 112, a first permanent magnet 113, a pressure-bearing chamber 114, a rubber spring 115 and a second permanent magnet 116, the flexible contact pad 111 is disposed at the upper end of the piston rod 112, the first permanent magnet 113 is disposed at the lower end of the piston rod 112, the piston rod 112 extends out of the pressure-bearing chamber 114, the rubber spring 115 is disposed on the bottom wall of the pressure-bearing chamber 114, the rubber spring 115 is disposed opposite to the first permanent magnet 113, and the second permanent magnet 116 is disposed around the periphery of the rubber spring 115; the elastic supporting device 12 comprises a compression cavity 121, an inner ring partition plate 122, an outer ring partition plate 123, an inflation cavity 124, an inflation tube 125 and a supporting air bag 126, wherein the compression cavity 121 and the inflation cavity 124 are arranged around the periphery of the pressure-bearing cavity 114, the inflation cavity 124 is arranged above the compression cavity 121, the inner ring partition plate 122 and the outer ring partition plate 123 are arranged on the side wall of the compression cavity 121, one end of the inflation tube 125 is connected with the inflation cavity 124, the other end of the inflation tube 125 is connected with the supporting air bag 126, the supporting air bag 126 is arranged on the supporting column 13, and the pressure-bearing cavity 114 and the compression cavity 121 are filled with magnetic fluid.
As shown in fig. 7, the externally-hung wind power generation assembly 21 includes an air duct 211, a stator 212, a rotor 213, a first rotating shaft 214 and fan blades 215, the air duct 211 is disposed on the bottom wall of the car 43, one end of the first rotating shaft 214 is connected to the bottom wall of the car 43, the other end of the first rotating shaft 214 is connected to the fan blades 215, the stator 212 is disposed on the inner wall of the air duct 211, the rotor 213 is disposed on the first rotating shaft 214, and the first rotating shaft 214 can rotate freely.
As shown in fig. 1, 5 and 6, the speed sensing assembly 22 includes a waveguide 221, a magnetic ring float 222, a fixed arm 223, a signal processor 224 and a fixed top plate 225, the top end of the waveguide 221 is connected to the fixed top plate 225, the bottom end of the waveguide 221 is connected to the signal processor 224, the waveguide 221 passes through the magnetic ring float 222, the magnetic ring float 222 can slide up and down along the waveguide 221, one end of the fixed arm 223 is connected to the car 43, and the other end of the fixed arm 223 is connected to the magnetic ring float 222.
As shown in fig. 8 and 9, the eddy current braking device 31 includes an elastic rod cap 311, a return spring 312, an expansion rod 313, a permanent magnetic pole 314, and an armature coil 315, wherein one end of the expansion rod 313 is connected to the elastic rod cap 311, the other end of the expansion rod 313 is connected to the permanent magnetic pole 314, the return spring 312 is sleeved on the expansion rod 313, and the armature coil 315 is disposed on the permanent magnetic pole 314; the pneumatic driving device 32 includes a signal receiver 321, a high pressure gas storage tank 322, a control valve 323, a gas-guiding tube 324 and a cavity 325, the high pressure gas storage tank 322 is disposed in the housing 33, the control valve 323 is disposed on the high pressure gas storage tank 322, one end of the gas-guiding tube 324 is connected to the control valve 323, the other end of the gas-guiding tube 324 is connected to the cavity 325, and the signal receiver 321 is disposed on the bottom wall of the housing 33.
As shown in fig. 10, 11 and 12, the lifting device 41 includes a driving motor 411, a speed reducer 412, a second rotating shaft 413, a gear 414, a rack 415, a latch plate 416, a fixed ball 417, a movable ball 418 and a buffer body 419, the driving motor 411 is fixedly connected to the sliding plate 44, one end of the speed reducer 412 is connected to the driving motor 411, the other end of the speed reducer 412 is connected to the second rotating shaft 413, the gear 414 is arranged on the second rotating shaft 413, the rack 415 is engaged with the gear 414, the latch plate 416 is arranged on two sides of the sliding plate 44, the fixed ball 417 is arranged on a side wall of the latch plate 416, the buffer body 419 is arranged on a side wall of the sliding plate 44, the movable ball 418 is arranged on the buffer body 419, and the fixed ball 417 and the movable ball 418 can freely roll.
As shown in fig. 13, the buffer body 419 includes a mounting block 4191, a permanent magnet three 4192, a permanent magnet four 4193, a limit spring 4194, a compression spring 4195 and a suspension housing 4196, the suspension housing 4196 is provided on a side wall of the sliding plate 44, the permanent magnet four 4193 is provided on an inner wall of the suspension housing 4196, the mounting block 4191 is protruded from the suspension housing 4196, the permanent magnet three 4192 is provided at one end of the mounting block 4191, the permanent magnet three 4192 is provided in the suspension housing 4196, the limit spring 4194 is circumferentially disposed on an outer periphery of the mounting block 4191, one end of the compression spring 4195 is connected with the permanent magnet three 4192, and the other end of the compression spring 4195 is connected with the inner wall of the suspension housing 4196.
As shown in fig. 1, the supporting and protecting device 42 includes a slope 421, a protecting frame 422 and a main frame body 423, the slope 421 is disposed at the bottom of the side edge of the protecting frame 422, and the main frame body 423 is disposed in the protecting frame 422.
As shown in fig. 1, the rack 415 is provided on the main frame 423.
Preferably, a central controller is arranged in the car 43 to realize the functions of lifting and braking of the equipment, and the model of the central controller is STC12C 6082.
When the elevator car 43 is used, a user firstly enters the elevator car 43 through the slope 421, then the driving motor 411 is started, the driving motor 411 drives the reducer 412 to drive the second rotating shaft 413 to rotate, the second rotating shaft 413 drives the gear 414 to rotate, the second gear 414 drives the sliding plate 44 to ascend together with the elevator car 43 under the matching of the rack 415, when the sliding plate 44 ascends, the fixed ball 417 and the movable ball 418 on the clamping plate 416 are attached to the side column body of the main frame 423, the ascending resistance can be reduced, the energy consumption is reduced, meanwhile, the repulsive force generated between the third permanent magnet 4192 and the fourth permanent magnet 4193 in the buffer 419 can effectively buffer the impact force generated between the elevator car 43 and the main frame 423 in the ascending and descending process, the shaking amplitude of the elevator car 43 is reduced, when the elevator car 43 reaches the designated height, the driving motor 411 stops, the constructor goes out of the elevator car 43 to reach the designated floor, when the elevator car 43 descends, the bottom of the elevator car 43 contacts the flexible contact pad 111, the piston rod 112 is pressed to move downwards, the piston rod 112 drives the first permanent magnet 113 to move downwards, the pressure bearing cavity 114 is filled with magnetic fluid, the magnetic fluid flows into the compression cavity 121 after being pressed, at the moment, the first permanent magnet 113 and the second permanent magnet 116 can provide a stable magnetic field, under the condition that no power supply or driving unit is added, the inner ring partition plate 122 and the outer ring partition plate 123 are used for generating damping force on the magnetic fluid, the damping buffer strength of the magnetic fluid is increased, when the magnetic fluid in the pressure bearing cavity 114 flows to the compression cavity 121, air in the air charging cavity 124 is pressed to enter the supporting air bag 126 through the air charging pipe 125, the supporting air bag 126 expands rapidly to form elastic support for the car 43 above, when the car 43 descends rapidly due to the failure of the driving motor 411 during the descending of the car 43, firstly, the fan blades 215 at the bottom of the car 43 start to rotate under the action of wind pressure, the fan blades 215 drive the first rotating shaft 214 to rotate, and the first rotating shaft 214 drives the rotor 213 to cut magnetic induction lines in a rotating manner so as to generate electric energy, the generated electric energy is transmitted to the waveguide tube 221, the magnetic ring floater 222 is magnetized by an external magnetic field generated by the waveguide tube 221 when descending by using the magnetostrictive principle, a torsion wave which is quickly transmitted along the waveguide tube 221 is generated, based on torsion wave signals received twice, the signal processor 224 can accurately calculate the descending speed of the car 43, the time for receiving the torsion wave for the first time is t1, the time for receiving the torsion wave for the second time is t2, the wave speed of the torsion wave is v1, the descending distance S = (t 1-t 2) v1 of the car 43 in one pulse signal period can be calculated, the pulse signal transmission period is t3, the pulse signal transmission period is t3 can be measured under the static condition of the car (power needs to be supplied to the waveguide rod), the descending speed v2= S/t3= (t 1-t 2) v1/t3 of the car 43 can be calculated, and the central controller judges whether a corresponding braking or protection function needs to be adopted according to the descending speed of the car 43, when the descending speed of the car 43 reaches the braking limit speed, the central controller starts the braking function, after the signal receiver 321 receives the braking signal, the control valve 323 is opened, the high-pressure gas in the high-pressure gas storage tank 322 flows into the cavity 325 through the gas duct 324, the internal and external pressure difference drives the expansion link 313 to extend out, so that the permanent magnetic poles 314 at the two sides gradually approach and contact the main frame 423, at this time, under the condition without any driving unit, eddy current is formed between the permanent magnetic poles 314 and the main frame 423, the eddy current forms braking force in the opposite direction of the descending direction of the car 43, the descending speed of the car 43 is slowed down, when the descending speed of the car 43 is gradually reduced from the braking limit speed, the eddy current braking force generated by the permanent magnetic poles 314 is gradually reduced, at this time, the armature coil 315 is used to generate auxiliary exciting current for forward excitation, the braking force level is maintained, when the descending speed of the car 43 is not reduced or even continues to rise after the braking function is started, the central controller sends a command to start the protective air bag 23, the protective air bag 23 expands on the ground to form elastic support protection for the rapidly-falling car 43, so that the whole working process of the invention is realized, and the step is repeated when the car is used next time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a speed response type building engineering jacking equipment based on magnetostriction principle which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the device comprises a stable driving lifting assembly (4), wherein the stable driving lifting assembly (4) comprises a lifting device (41), a supporting protection device (42), a car (43) and a sliding plate (44), the car (43) is arranged on the sliding plate (44), the lifting device (41) is arranged at the top of the sliding plate (44), and the sliding plate (44) is arranged on the supporting protection device (42);
the pressure-operated magnetic fluid damping and buffering assembly (1) is arranged under a lift car (43), the pressure-operated magnetic fluid damping and buffering assembly (1) comprises a magnetic fluid buffering device (11), an elastic supporting device (12) and supporting columns (13), the supporting columns (13) are arranged on two sides of the magnetic fluid buffering device (11), and the elastic supporting device (12) is arranged between the magnetic fluid buffering device (11) and the supporting columns (13);
wind pressure excitation type speed sensing protection component (2), the top of pressing dynamic formula magnetic current body shock attenuation buffer unit (1) is located in wind pressure excitation type speed sensing protection component (2), wind pressure excitation type speed sensing protection component (2) is including outer hanging wind power generation subassembly (21), speed sensing component (22) and protective air bag (23), outer hanging wind power generation subassembly (21) is located on the diapire of car (43), one side of outer hanging wind power generation subassembly (21) is located in speed sensing component (22), the bottom of speed sensing component (22) and the bottom parallel and level of support column (13), protective air bag (23) are located under car (43); and the number of the first and second groups,
pneumatic contraction type eddy current brake subassembly (3), pneumatic contraction type eddy current brake subassembly (3) are located on the diapire of car (43), pneumatic contraction type eddy current brake subassembly (3) are including eddy current arresting gear (31), air pressure drive device (32) and casing (33), casing (33) are located on the diapire of car (43), air pressure drive device (32) are located in casing (33), air pressure drive device (32) are passed through air pressure drive device (32) in eddy current arresting gear (31).
2. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 1, characterized in that: the magnetic fluid buffer device (11) comprises a flexible contact pad (111), a piston rod (112), a first permanent magnet (113), a pressure bearing cavity (114), a rubber spring (115) and a second permanent magnet (116), wherein the flexible contact pad (111) is arranged at the upper end of the piston rod (112), the first permanent magnet (113) is arranged at the lower end of the piston rod (112), the piston rod (112) extends out of the pressure bearing cavity (114), the rubber spring (115) is arranged on the bottom wall of the pressure bearing cavity (114), the rubber spring (115) is arranged right opposite to the first permanent magnet (113), and the second permanent magnet (116) is arranged around the periphery of the rubber spring (115);
elastic support device (12) are including compression chamber (121), inner circle baffle (122), outer lane baffle (123), inflation chamber (124), gas tube (125) and support gasbag (126), compression chamber (121) and inflation chamber (124) are around arranging the periphery of locating pressure-bearing chamber (114), the top in compression chamber (121) is located in inflation chamber (124), on the lateral wall in compression chamber (121) is located in inner circle baffle (122) and outer lane baffle (123), the one end and the inflation chamber (124) of gas tube (125) are connected, the other end and the support gasbag (126) of gas tube (125) are connected, support gasbag (126) are located on support column (13).
3. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 2, characterized in that: outer hanging wind power generation subassembly (21) are including dryer (211), stator (212), rotor (213), pivot (214) and flabellum (215), on the diapire of car (43) was located in dryer (211), the one end of pivot (214) is connected with the diapire of car (43), the other end and the flabellum (215) of pivot (214) are connected, stator (212) are located on the inner wall of dryer (211), rotor (213) are located on pivot (214), but pivot (214) free rotation.
4. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 3, characterized in that: the speed sensing assembly (22) comprises a waveguide tube (221), a magnetic ring floater (222), a fixed arm (223), a signal processor (224) and a fixed top plate (225), the top end of the waveguide tube (221) is connected with the fixed top plate (225), the bottom end of the waveguide tube (221) is connected with the signal processor (224), the waveguide tube (221) penetrates through the magnetic ring floater (222), the magnetic ring floater (222) can slide up and down along the waveguide tube (221), one end of the fixed arm (223) is connected with the car (43), and the other end of the fixed arm (223) is connected with the magnetic ring floater (222).
5. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 4, characterized in that: the eddy current braking device (31) comprises an elastic rod cap (311), a return spring (312), an expansion rod (313), a permanent magnetic pole (314) and an armature coil (315), one end of the expansion rod (313) is connected with the elastic rod cap (311), the other end of the expansion rod (313) is connected with the permanent magnetic pole (314), the return spring (312) is sleeved on the expansion rod (313), and the armature coil (315) is arranged on the permanent magnetic pole (314).
6. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 5, characterized in that: pneumatic drive arrangement (32) include signal receiver (321), high-pressure gas storage tank (322), control valve (323), air duct (324) and cavity (325), high-pressure gas storage tank (322) are located in casing (33), control valve (323) are located on high-pressure gas storage tank (322), the one end and the control valve (323) of air duct (324) are connected, the other end and the cavity (325) of air duct (324) are connected, signal receiver (321) are located on the diapire of casing (33).
7. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 6, characterized in that: the lifting device (41) comprises a driving motor (411), a speed reducer (412), a second rotating shaft (413), a gear (414), a rack (415), a clamping plate (416), a fixed ball (417), a movable ball (418) and a buffer body (419), wherein the driving motor (411) is fixedly connected to the sliding plate (44), one end of the speed reducer (412) is connected with the driving motor (411), the other end of the speed reducer (412) is connected with the second rotating shaft (413), the gear (414) is arranged on the second rotating shaft (413), the rack (415) is in meshed connection with the gear (414), the clamping plate (416) is arranged on two sides of the sliding plate (44), the fixed ball (417) is arranged on a side wall of the clamping plate (416), the buffer body (419) is arranged on a side wall of the sliding plate (44), and the movable ball (418) is arranged on the buffer body (419), the fixed ball (417) and the movable ball (418) can roll freely.
8. A magnetostrictive principle based speed sensing type construction work hoist apparatus according to claim 7, characterized in that: the buffer body (419) comprises an installation block (4191), a permanent magnet III (4192), a permanent magnet IV (4193), a limiting spring (4194), a compression spring (4195) and a suspension shell (4196), the suspension shell (4196) is arranged on the side wall of the sliding plate (44), the permanent magnet IV (4193) is arranged on the inner wall of the suspension shell (4196), the installation block (4191) extends out of the suspension shell (4196), the permanent magnet III (4192) is arranged at one end of the installation block (4191), the permanent magnet III (4192) is arranged in the suspension shell (4196), the limiting spring (4194) is arranged on the periphery of the installation block (4191) in a surrounding mode, one end of the compression spring (4195) is connected with the permanent magnet III (4192), and the other end of the compression spring (4195) is connected with the inner wall of the suspension shell (4196).
9. A magnetostrictive principle based speed sensing construction work hoist apparatus according to claim 8, characterized in that: the supporting protection device (42) comprises a slope (421), a protection frame (422) and a main frame body (423), wherein the slope (421) is arranged at the bottom of the side edge of the protection frame (422), and the main frame body (423) is arranged in the protection frame (422).
10. A magnetostrictive principle based speed sensing construction work hoist apparatus according to claim 9, characterized in that: the rack (415) is arranged on the main frame body (423).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210029178.3A CN114057059B (en) | 2022-01-12 | 2022-01-12 | Speed induction type building engineering lifting equipment based on magnetostrictive principle |
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| CN202210029178.3A CN114057059B (en) | 2022-01-12 | 2022-01-12 | Speed induction type building engineering lifting equipment based on magnetostrictive principle |
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| CN114057059B CN114057059B (en) | 2022-03-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116804404A (en) * | 2023-08-22 | 2023-09-26 | 常熟市强盛冲压件有限公司 | Industrial compressor casing based on amortization technique |
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| SU1033417A1 (en) * | 1982-03-31 | 1983-08-07 | Всесоюзный Научно-Исследовательский И Конструкторско-Технологический Институт "Вниктистальконструкция" | Method of engaging and holding non-magnetic metal articles |
| CN105417316A (en) * | 2016-01-07 | 2016-03-23 | 重庆大学 | Magnetorheology based elevator drop buffering device |
| CN108358005A (en) * | 2018-02-08 | 2018-08-03 | 重庆恩光科技有限公司 | The elevator of multi-buffer protects system |
| CN108408535A (en) * | 2018-03-30 | 2018-08-17 | 太原科技大学 | A kind of security protection system when the tenesmus for elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1033417A1 (en) * | 1982-03-31 | 1983-08-07 | Всесоюзный Научно-Исследовательский И Конструкторско-Технологический Институт "Вниктистальконструкция" | Method of engaging and holding non-magnetic metal articles |
| CN105417316A (en) * | 2016-01-07 | 2016-03-23 | 重庆大学 | Magnetorheology based elevator drop buffering device |
| CN108358005A (en) * | 2018-02-08 | 2018-08-03 | 重庆恩光科技有限公司 | The elevator of multi-buffer protects system |
| CN108408535A (en) * | 2018-03-30 | 2018-08-17 | 太原科技大学 | A kind of security protection system when the tenesmus for elevator |
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| CN116804404A (en) * | 2023-08-22 | 2023-09-26 | 常熟市强盛冲压件有限公司 | Industrial compressor casing based on amortization technique |
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| CN114057059B (en) | 2022-03-25 |
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