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CN105621192B - High-efficiency permanent magnet booster safety brake and direct-drive elevator - Google Patents

High-efficiency permanent magnet booster safety brake and direct-drive elevator Download PDF

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Publication number
CN105621192B
CN105621192B CN201610138399.9A CN201610138399A CN105621192B CN 105621192 B CN105621192 B CN 105621192B CN 201610138399 A CN201610138399 A CN 201610138399A CN 105621192 B CN105621192 B CN 105621192B
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CN
China
Prior art keywords
composite plate
floating
mover
brake
subunit
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CN201610138399.9A
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CN105621192A (en
Inventor
汪旭东
许孝卓
封海潮
许宝玉
黄文英
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Jiaozuo Huaying Electromechanical Technology Co ltd
Henan University of Technology
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Jiaozuo Huaying Electromechanical Technology Co ltd
Henan University of Technology
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Priority to CN201610138399.9A priority Critical patent/CN105621192B/en
Publication of CN105621192A publication Critical patent/CN105621192A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Linear Motors (AREA)

Abstract

The invention discloses efficient permanent magnet reinforcement deadman's brake and directly drive elevator.Using the permanent magnetism normal force of linear motor itself and electromagnetism lifting force as braking and drive force, tripping spring can be also used cooperatively together with permanent magnetism, apply brake force, composite plate and dynamic magnetic grade are moved back and forth by small stroke or mover intercouples area, it is gradually increased or reduces to control the brake force of big several times, the steady closure and opening for realizing brake solve existing deadman's brake " be opened and closed two sound " noise and vibration are big, volume is big, from the security hidden troubles such as significant problem and the non-band-type brake of the band-type brake.The configuration of the present invention is simple, at low cost, brake force are big, safe and reliable, impact is small, noise is low, easy to maintain, power consumption is low, small in size, light weight, service life are long, the straight drive dedicated driving device of elevator brake can be cancelled, brake structural is simplified, keeps lifting system more compact.Present invention can apply to the multiple fields such as elevator, elevator, pumping unit, lifting, storage, communications and transportation.

Description

Efficient permanent magnet reinforcement deadman's brake and directly drive elevator
Technical field
The invention belongs to electro-mechanical arts, and in particular to efficient permanent magnet reinforcement deadman's brake and directly drive elevator.
Background technique
Brake is with the important dress for making the functions such as moving component or movable machinery deceleration, stopping or holding halted state It sets.It is commonly called as brake, lock.There is various structures pattern because of the development of modern industry machinery in brake, wherein friction brakes Such as spot-type disc brake, electromagnetic brake, floating brake are most widely used.In special equipment field using most More is the safety brake with loss protecting function.
Existing safety brake is primarily present the big problem such as volume, self weight, noise, especially " two sound of opening and closing ", noise Vibration problem is prominent: one, generating very because tripping spring discharges huge energy with braking rail or brake disc collision when brake Big sound and vibration;Two, it needs to overcome tripping spring huge energy when brake (power-off) declutches, causes electromagnet volume very Greatly, it moved when electromagnet is closed, determine the very big sound of armature collision generation and vibration;For safety-type hydraulic brake, there is also oil The problems such as case volume is big, oil leak, Maintenance Difficulty, for safe type electromagnetic brake, there is also electromagnet energization instantaneous large-currents pair After power grid impact is big, moving armature is closed the problems such as power consumption always.Tradition has winding drum, driving motor and the braking of rope elevator Device is typically mounted in the computer room above building far from passenger, and the above problem may also be not enough to attract people's attention.
But for the straight drive elevator of the linear motor of no counterweight driving, carriage interacts by linear motor rotor and stator The electromagnetic force of generation directly drives, and dynamic primary short primary/long secondary, or short time of dynamic secondary can be used in the method for operation Grade/long primary two kinds of linear motor arrangements, the part with main winding and energization is known as primary in primary, secondary the two, no Part with main winding is known as secondary, and the motion parts in the two are known as mover, and fixed part is known as stator, and stator is solid It is scheduled on hoistway side, mover is fixed on carriage or car frame or mover beam, travelling-magnetic-field is formed when linear electric motor primary is powered, To generate upward lifting force, carriage movement is driven, brake is servo-actuated to be mounted in mover beam or car frame or carriage, above-mentioned Noise and vibration problem and volume are big, just become especially prominent from significant problem for problem especially brake " two sound of opening and closing ", and Because without promoting hawser, it is understood that there may be lifting force is inadequate or loses equal fortuitous events, and system down cannot issue band-type brake in time Instruction or brake receiver are instructed less than band-type brake, major safety risks problem cannot be caused by band-type brake in time, to the real-time of brake Control and security reliability requirement are harsher, become straight and drive elevator core key technical problem, before it not can effectively solve, It is difficult to realize engineering application.
The invention discloses efficient permanent magnet reinforcement deadman's brake and directly drive elevator.Utilize the permanent magnet method of linear motor itself To power and electromagnetism lifting force as braking and drive force, while tripping spring can also be used cooperatively together with permanent magnetism, apply system Power carries out " dual force (mixing) braking ", is intercoupled area by small stroke reciprocating movement composite plate and dynamic magnetic grade or mover, Be gradually increased or reduce to control the brake force of big several times, realize the closure and opening of brake, have braking it is steady, it is reliable, The remarkable advantages such as noise reduction, damping, solving existing deadman's brake " two sound of opening and closing ", noise is big, volume is big, from significant problem, and The non-band-type brake of the band-type brake, the severe compromises problem such as fail to report lock.The configuration of the present invention is simple, at low cost, brake force is big, safely can It leans on, impact that small, noise is low, easy to maintain, power consumption is low, small in size, light weight, service life are long, can cancel that straight to drive elevator brake special With driving device, brake structural is simplified, keeps lifting system more compact.Present invention can apply to brake, elevator, mines The multiple fields such as elevator, oil-field oil pumper, stereo warehouse, hoisting machine, transportation system.
Summary of the invention
The technical problem to be solved by the present invention is to solve existing safety brake " two sound of opening and closing " noise vibration to greatest extent Move the peaces such as big problem and volume are big, do not send instructions from significant problem and the locking system, brake itself " not having self-insurance " function Full potential problem.
The technical scheme is that realized with following methods:
Efficient permanent magnet reinforcement deadman's brake, including friction catch mechanism (9) and the system being connect with friction catch mechanism (9) Dynamic driving mechanism, which is characterized in that the braking drive organ includes composite plate (13) and dynamic magnetic grade (12), the composite plate (13) to be arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), the dynamic magnetic grade (12) is magnet (4) or by least one set of magnet (4) and iron core (3) it is arranged successively, moves magnetic grade (12) and composite plate (13) clearance fit, One in composite plate (13) and dynamic magnetic grade (12) be connected at least one friction catch mechanism (9), another is filled with outer driving Set (91) connection.
Further, the braking drive organ is two, is separately positioned on friction catch mechanism (9) two sides, side braking The composite plate (13) or dynamic magnetic grade of the composite plate (13) of driving mechanism or one in dynamic magnetic grade and other side braking drive organ (12) one in is connected with friction catch mechanism (9).
Further, braking drive organ includes frame body (18), is provided with floating position-limiting guiding pair on the frame body (18) (10) and sliding limition orientation is secondary (16), and one moved in magnetic grade (12) and composite plate (13) is arranged in floating position-limiting guiding pair (10) it is connected on and at least one friction catch mechanism (9), another setting is in sliding limition orientation secondary (16) and by outer Driving device pushes or pull on;
Or braking drive organ includes back-shaped beam (201), concentrated setting has floating slide-and-guide on the back-shaped beam (201) Pair, composite plate (13) or be arranged in floating slide-and-guide pair with the dynamic magnetic grade (12) of composite plate (13) clearance fit and at least One friction catch mechanism (9) is connected, another is connected with back-shaped beam (201) and is pushed or pull on by outer driving device.
Further, the floating position-limiting guiding pair (10) include floating guiding rail on frame body (18) is set, setting exists The floating position-limiting block of floating guiding rail end and cover the reset spring on floating guiding rail, the sliding limition orientation pair (16) Including be arranged on frame body slide-and-guide rail, the sliding limited block of slide-and-guide rail end be set and cover in slide-and-guide rail On buffer spring;
The floating slide-and-guide pair includes sliding limiting slot (200) and floating position-limiting slot (202), in sliding limiting slot (200) setting sliding reset spring (203) in, setting floating reset spring (204) and floating are led in floating position-limiting slot (202) To rail (205), composite plate (13) or with the dynamic magnetic grade (12) of composite plate (13) clearance fit by floating reset spring (204) and Floating guiding rail (205) is equipped with back-shaped beam (201).
Further, the outer driving device is electromagnet, Electric Actuator, fluid power actuator, electro-hydraulic actuator, driving electricity Machine.
Linear motor efficient permanent magnet reinforcement deadman's brake, including the stator (11) being arranged on immobilizing foundation, friction system Motivation structure (9), and the braking drive organ being connect with friction catch mechanism (9), the mover (60) being arranged on mover beam (61), Stator (11) is made of at least one set of stator unit, and mover (60) is made of at least one set of subunit, mover (60) and stator (11) it is equipped with composition linear motor, which is characterized in that the subunit is for magnet or by least one set of magnet and iron core It is arranged successively, composite plate (13) setting is described compound in the side of the mover (60) cooperated with linear motor stator electric (11) Plate (13) is permeability magnetic material (2) or is arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), described multiple At least one subunit clearance fit in plywood (13) and mover (60), the mover of composite plate (13) He Yuqi clearance fit One in unit is connected at least one friction catch mechanism (9).
Further, it is provided with floating position-limiting guiding pair (10) on mover beam (61) and sliding limition orientation is secondary (16), it is compound Plate (13) and with one in the subunit of composite plate (13) clearance fit be arranged on floating position-limiting guiding pair (10) and with At least one friction catch mechanism (9) is connected, another setting is in sliding limition orientation secondary (16) and by least one set of mover Unit pushes or pull on;
Or back-shaped beam (201) are set on mover beam, concentrated setting has floating slide-and-guide pair on the back-shaped beam (201), Composite plate (13) or be arranged in floating slide-and-guide pair with the subunit of composite plate (13) clearance fit and and at least one Friction catch mechanism (9) is connected, another is connected with back-shaped beam (201) or mover beam (61) and is pushed away by least one set of subunit Dynamic or pulling.
Elevator is directly driven in efficient permanent magnet reinforcement safety arrestment, including the immobilizing foundation arranged along hoistway, mover beam (61), sedan-chair Compartment, is arranged mover (60) on mover beam (61), friction catch mechanism (9), be arranged in the stator (11) on immobilizing foundation and Guide rail, mover (60) are made of at least one set of subunit, and stator (11) is made of at least one set of stator unit, mover (60) with Stator (11) is equipped with composition linear motor, which is characterized in that it is provided with composite plate (13) in the side of mover (60), it is described Subunit is magnet or is arranged successively by least one set of magnet and iron core that the composite plate (13) is to be led by least one set Magnetic material (2) and non-magnet material (1) are arranged successively, at least one subunit in composite plate (13) and mover (60) Clearance fit, one in the subunit of composite plate (13) He Yuqi clearance fit at least one friction catch mechanism (9) It is connected.
Further, floating position-limiting guiding pair (10) and sliding limition orientation secondary (16) and limit are provided on mover beam (61) Beam (20) is provided with buffer spring (21) on the limit beam (20), composite plate (13) and with composite plate (13) clearance fit One in subunit is arranged on floating position-limiting guiding pair (10) and is connected at least one friction catch mechanism (9), separately One setting is pushed or pull in sliding limition orientation secondary (16) by least one set of subunit.
Or back-shaped beam (201) are provided on mover beam (61), concentrated setting has floating sliding to lead on the back-shaped beam (201) It is arranged in floating slide-and-guide pair to pair, composite plate (13) or with one in the subunit of composite plate (13) clearance fit And be connected at least one friction catch mechanism (9), another is connected with back-shaped beam (201) or mover beam (61) and by least one Group subunit pushes or pull on.
Further, the floating slide-and-guide pair includes the sliding limiting slot (200) being arranged in back-shaped beam (201) and floats Dynamic limiting slot (202), setting sliding reset spring (203) in sliding limiting slot (200), set in floating position-limiting slot (202) Set floating reset spring (204) and floating guiding rail (205), composite plate (13) or the mover list with composite plate (13) clearance fit Member is equipped with by floating reset spring (204) and floating guiding rail (205) with back-shaped beam (201), back-shaped beam (201) with move Sub- beam (61) or car frame or carriage are connected.
Compared with prior art, the present invention provides that a kind of structure is simple, at low cost, brake force is big, safe and reliable, impact It is small, noise is low, easy to maintain, power consumption is low, small in size, light weight, service life are long, using linear motor itself permanent magnetism normal force and Electromagnetism lifting force as braking and drive force deadman's brake and directly drive elevator, can also cooperate tripping spring together with permanent magnetism makes With, apply brake force, eliminate it is straight drive the dedicated driving device of brake in elevator, can be without dedicated brake driving power, system Dynamic device driver and controller, simplify brake structural, keep lifting system more compact, and save the cost reduces energy consumption.Together When, composite plate and dynamic magnetic grade are moved back and forth by small stroke or mover intercouples area, control numerically big several-fold method Being gradually increased or reduce, the closure and opening of Lai Shixian brake to power has steady braking, reliable, noise reduction, damping etc. aobvious Advantage is write, existing deadman's brake " opening and closing two sound " is solved noise and vibration is big, volume is big, from significant problem and brake this armful Lock but the band-type brake instruction not severe compromises problem such as band-type brake is received not in time.Present invention can apply to brakes, building electricity The multiple fields such as ladder, mine hoist, oil-field oil pumper, stereo warehouse, hoisting machine and other transportation systems.
Detailed description of the invention
Fig. 1 ~ 4 are the principle of the present invention figure.
Fig. 5 ~ 12 are the structural schematic diagram of efficient permanent magnet reinforcement deadman's brake of the present invention.
Figure 13 ~ 31 are linear motor efficient permanent magnet reinforcement deadman's brake of the present invention or the straight structural schematic diagram for driving elevator.
In attached drawing: 1 non-magnet material, 2 permeability magnetic materials, 3 iron cores, 4 magnets, 5 windings, 6 grades, 8 guide rails, 9 friction catches Mechanism, 10 floating position-limiting guiding pairs, 11 stators, 12 dynamic magnetic grades, 13 composite plates, 16 sliding limition orientation pairs, 18 frame bodies, 20 limits Beam, 21 buffer springs, 60 movers, 61 mover beams, 70 spherical balls, 71 braking linking arms, 91 outer driving devices, 100 carriages, Connector is driven outside 150,200 sliding limiting slots, 201 back-shaped beams, 202 floating position-limiting slots, 203 slide reset springs, and 204 floatings are multiple Position spring, 205 floating guiding rails.
Specific embodiment
Elaboration is further made to the present invention with reference to the accompanying drawings and examples.
It is as shown in Figure 1 and Figure 2 one group of magnet for dynamic magnetic grade, composite plate is the minimal structure basic principle of one group of magnetic conductive board Figure, magnet and magnetic conductive board fit clearance are arranged, when magnetic conductive board mutually couples (referred to as short-circuit condition) with magnet completely, the two it Between the normal direction magnetic attraction that generates it is maximum, when longitudinal movement magnet or magnetic conductive board both make to gradually decrease coupling area (not coupling completely Close, referred to as open-circuit condition), then normal direction magnetic attraction is gradually decrease to zero between the two, will be same in longitudinal movement direction during this When by the effect for attempting to hinder mobile, opposite reluctance force, reluctance force of this reluctance force under short circuit and open-circuit condition is zero, It is the maximum (1/5-1/ of the general only maximum normal force of maximum reluctance force that this reluctance force has just been left near magnet positions in magnetic conductive board 10 or less) it, is gradually decreased as zero later.At this point, making the two gradually increase coupling area when reversed return is mobile, then between the two Normal direction magnetic attraction is gradually increased to maximum, will be resetted referred to as magnetic restoring force by a kind of help simultaneously during reversed return Effect, this magnetic restoring force and reluctance force it is equal in magnitude, direction is identical, that is to say, that by similar in reciprocating movement In the effect of the power of spring, forward direction is resistance, is reversed reply pulling force, substantially sees it is that magnetic circuit itself always attempts to keep in the center (magnetic circuit couples completely, the smallest maximum magnetic flux suction force state of magnetic resistance).Phase is controlled by the mobile composite plate of low-force or dynamic magnetic grade Mutual coupling area, so that it may control the normal direction magnetic attraction of numerically big several times.Both composite plate and dynamic magnetic grade gap and magnetic attraction It is positive feedback effect relationship, gap is smaller, and the two magnetic attraction is bigger;Conversely, gap is bigger, magnetic attraction is smaller.
It is at least arranged successively by one group of magnet with iron core as Fig. 3 ~ Fig. 4 show dynamic magnetic grade, composite plate is led by one group Magnetic sheet is arranged successively with non-magnetic plate, moves basic schematic diagram of the magnetic grade between composite plate and stator.In Fig. 3, stator At least be made of one group of winding and slotted core, the center of two permeability magnetic material of arbitrary neighborhood of composite plate or non-magnet material away from The center of dynamic two magnet of magnetic grade arbitrary neighborhood away from it is equal be t, when the center of composite plate permeability magnetic material away from in dynamic magnetic grade magnet When the heart is away from being overlapped, magnetic attraction is maximum between the two for composite plate and dynamic magnetic grade, and stator is with dynamic magnetic grade that magnetic attraction is between the two It is minimum;When the center of composite plate non-magnet material with the center line of dynamic magnetic grade magnet away from being overlapped, both composite plate and dynamic magnetic grade Between magnetic attraction be minimum, and magnetic attraction is maximum between the two for stator and dynamic magnetic grade;By moving back and forth composite plate or dynamic magnetic A t/2 distance in grade makes magnetic attraction gradually become maximum or minimum, during this, also will receive the similar magnetic of Fig. 1 and replys The effect of power and reluctance force.In shown in the upper figure of Fig. 3, the primary that magnetic grade is permanent-magnet linear flux switching motor is moved, if it is moved Referred to as mover, stator are the secondary (slotted core) of permanent-magnet linear flux switching motor, and dynamic magnetic grade is equipped with stator, multiple Plywood is in short-circuit condition (i.e. magnet center line is overlapped with magnetic conductive board center line), at this point, permanent magnetic field mainly act on it is compound Between plate and dynamic magnetic grade, magnetic attraction is maximum between the two for composite plate and dynamic magnetic grade, stator and dynamic magnetic grade magnetic attraction between the two For minimum, only sub-fraction magnetic fields in stator and dynamic magnetic grade between the two, make as permanent-magnet linear flux switching motor Smaller with contributing, electric motors function is limited;In shown in Fig. 3 following figure, composite plate is in open-circuit condition, i.e., magnet center line with it is non-magnetic Plate center line is overlapped, at this point, magnetic attraction is close to zero between the two for minimum for composite plate and dynamic magnetic grade, permanent magnetic field main function In dynamic magnetic grade and stator, magnetic attraction is maximum between the two for stator and dynamic magnetic grade, at this point, if the winding of dynamic magnetic grade is powered, stator Have become the permanent-magnet linear flux switching motor of a normal work with dynamic magnetic grade.Composite plate and dynamic magnetic grade between the two between Gap and magnetic attraction are positive feedback effect relationships, i.e., gap is smaller between the two with dynamic magnetic grade for composite plate, and magnetic attraction is bigger;Conversely, Gap is bigger, and magnetic attraction is smaller, and stator gradually changes into the permanent-magnet linear flux switching motor of normal output with dynamic magnetic grade.
In shown in Fig. 4, the secondary that magnetic grade is permanent-magnet linear salient-pole machine is moved, is at least arranged successively by one group of magnet with iron core It forms, because collateral motion is also referred to as mover, composite plate is arranged successively by one group of magnetic conductive board with non-magnetic plate, and stator is The primary of permanent-magnet linear salient-pole machine is at least made of one group of winding and slotted core, and composite plate is that one group of magnetic conductive board is led with non- The assembly that magnetic sheet is arranged successively moves basic schematic diagram of the magnetic grade between composite plate and stator.In the upper figure of Fig. 4, composite plate In short-circuit condition, i.e. magnet center line is overlapped with permeability magnetic material center line;In Fig. 4 following figure, composite plate is in open-circuit condition, i.e., Magnet center line is overlapped with non-magnet material center line.Remaining same Fig. 1-Fig. 2.
The magnet is monolithic magnet or one group of magnet, or identical by polarity or different muti-piece magnet forms, such as Halbach magnet array.Magnet is the magnetic materials such as permanent magnet, electrical excitation body, superconducting magnet.
According to above-mentioned principle, if composite plate and dynamic magnetic grade normal direction flying height cooperate, the cooperation of longitudinal sliding motion pair, and will be compound One in both plate and dynamic magnetic grade is connected at least one friction catch mechanism brake block or brake arm, another is by it Body or the small stroke of outer power drive move back and forth, so that it may control normal gap, normal force is gradually increased or is gradually reduced realization Brake steadily closes or opens function.
Using above-mentioned principle, can also tripping spring be used cooperatively together with permanent magnetism, applied or be released simultaneously brake force Carry out " mixing (dual force) braking or open ": one, the brake block or brake arm of friction catch mechanism on, or with friction catch mechanism Tripping spring is set in the composite plate or dynamic magnetic grade that brake block or brake arm are connected.Dynamic magnetic grade (mover) is moved back and forth, when compound Under plate short-circuit condition, generates permanent magnetism normal force and tripping spring power and apply brake force jointly, arrester close (band-type brake), conversely, Under open-circuit condition, permanent magnetism normal force is zero or very little, and mover and stator become the linear motor worked normally, using mover with Biggish intrinsic normal direction makes every effort to overcome system of mourning and moves spring force between stator, realizes the opening of brake;Two, friction catch mechanism is spring system Dynamic normally engaged brake, tripping spring power is separately as brake braking force.Composite plate or dynamic magnetic grade are moved back and forth, when composite plate is opened Under line state, permanent magnetism normal force is zero or very little, arrester close (band-type brake), conversely, generating permanent magnetism normal force under short-circuit condition Overcome tripping spring power, opens brake.
Embodiment 1
As shown in Fig. 1,2,7 and 8, efficient permanent magnet reinforcement deadman's brake, including friction catch mechanism (9) and with friction make The braking drive organ of motivation structure (9) connection, which is characterized in that the braking drive organ includes composite plate (13) and dynamic magnetic grade (12), the composite plate (13) is permeability magnetic material (2) or is successively arranged by least one set of permeability magnetic material (2) and non-magnet material (1) It arranges, the dynamic magnetic grade (12) is magnet (4) or is arranged successively by least one set of magnet (4) and iron core (3), moves magnetic Grade (12) and composite plate (13) clearance fit, one in composite plate (13) and dynamic magnetic grade (12) and at least one friction catch machine Structure (9) is connected, another connect with outer driving device (91).The braking drive organ is two, is separately positioned on friction system Motivation structure (9) two sides, the composite plate (13) of side braking drive organ or one in dynamic magnetic grade and other side braking driving machine The composite plate (13) of structure or one in dynamic magnetic grade (12) are connected with friction catch mechanism (9).
Embodiment 2
Such as Fig. 1,2,5,6,9 and 10.Efficient permanent magnet reinforcement deadman's brake, including friction catch mechanism (9) and with friction The braking drive organ of arrestment mechanism (9) connection, which is characterized in that braking drive organ includes frame body (18), the frame body (18) it is provided with floating position-limiting guiding pair (10) on and sliding limition orientation is secondary (16), moves in magnetic grade (12) and composite plate (13) One setting is connected on floating position-limiting guiding pair (10) and at least one friction catch mechanism (9), another is arranged in cunning It is pushed or pull in dynamic limition orientation secondary (16) and by outer driving device;The floating position-limiting guiding pair (10) includes being arranged in frame Floating guiding rail on body (18) is arranged in the floating position-limiting block of floating guiding rail end and covers the reset on floating guiding rail Spring, the sliding limition orientation secondary (16) include the slide-and-guide rail being arranged on frame body, are arranged in slide-and-guide rail end Sliding limited block and cover the buffer spring on slide-and-guide rail.
Embodiment 3
As shown in Fig. 1,2,5,6,11 and 12, efficient permanent magnet reinforcement deadman's brake, braking drive organ includes back-shaped beam (201), concentrated setting has a floating slide-and-guide pair on the back-shaped beam (201), composite plate (13) or with composite plate (13) gap The dynamic magnetic grade (12) of cooperation is arranged in floating slide-and-guide pair and is connected, another at least one friction catch mechanism (9) It is connected with back-shaped beam (201) and is pushed or pull on by outer driving device.The floating slide-and-guide pair includes sliding limiting slot (200) and floating position-limiting slot (202), setting sliding reset spring (203) in sliding limiting slot (200), in floating position-limiting slot (202) setting floating reset spring (204) and floating guiding rail (205) in, composite plate (13) or matches with composite plate (13) gap The dynamic magnetic grade (12) closed is equipped with by floating reset spring (204) and floating guiding rail (205) with back-shaped beam (201).
Embodiment 4
As shown in Fig. 3,4 and 13 ~ 24, linear motor efficient permanent magnet reinforcement deadman's brake, including be arranged in immobilizing foundation On stator (11), friction catch mechanism (9), and the braking drive organ connecting with friction catch mechanism (9) is arranged in mover Mover (60) on beam (61), stator (11) are made of at least one set of stator unit, and mover (60) is by least one set of subunit Composition, mover (60) and stator (11) are equipped with composition linear motor, which is characterized in that the subunit be magnet or by At least one set of magnet and iron core are arranged successively, and composite plate (13) is arranged in the mover cooperated with linear motor stator electric (11) (60) side, the composite plate (13) are permeability magnetic material (2) or by least one set of permeability magnetic materials (2) and non-magnet material (1) It is arranged successively, at least one subunit clearance fit in the composite plate (13) and mover (60), composite plate (13) It is connected with one in the subunit with its clearance fit at least one friction catch mechanism (9).Mover beam is set on (61) Be equipped with floating position-limiting guiding pair (10) and sliding limition orientation be secondary (16), composite plate (13) and with composite plate (13) clearance fit One in subunit is arranged on floating position-limiting guiding pair (10) and is connected at least one friction catch mechanism (9), separately One setting pushes or pull in sliding limition orientation secondary (16) and by least one set of subunit.
Embodiment 5
As shown in Fig. 3,4 and 25-31, linear motor efficient permanent magnet reinforcement deadman's brake, including be arranged in immobilizing foundation On stator (11), friction catch mechanism (9), and the braking drive organ connecting with friction catch mechanism (9) is arranged in mover Mover (60) on beam (61), stator (11) are made of at least one set of stator unit, and mover (60) is by least one set of subunit Composition, mover (60) and stator (11) are equipped with composition linear motor, which is characterized in that the subunit be magnet or by At least one set of magnet and iron core are arranged successively, and composite plate (13) is arranged in the mover cooperated with linear motor stator electric (11) (60) side, the composite plate (13) are permeability magnetic material (2) or by least one set of permeability magnetic materials (2) and non-magnet material (1) It is arranged successively, at least one subunit clearance fit in the composite plate (13) and mover (60), composite plate (13) It is connected with one in the subunit with its clearance fit at least one friction catch mechanism (9).It is arranged back on mover beam Ellbeam (201), concentrated setting has a floating slide-and-guide pair on the back-shaped beam (201), composite plate (13) or with composite plate (13) The subunit of clearance fit is arranged in floating slide-and-guide pair and is connected at least one friction catch mechanism (9), another It is a to be connected with back-shaped beam (201) or mover beam (61) and pushed or pull on by least one set of subunit.
Embodiment 6
As shown in 3,4 and 13 ~ 24, elevator is directly driven in efficient permanent magnet reinforcement safety arrestment, including the fixation base arranged along hoistway Plinth, mover beam (61), carriage, the mover (60) being arranged on mover beam (61), friction catch mechanism (9), setting is in fixed base Stator (11) and guide rail on plinth, mover (60) are made of at least one set of subunit, and stator (11) is by least one set of stator list Member composition, mover (60) and stator (11) are equipped with composition linear motor, which is characterized in that are arranged in the side of mover (60) Have composite plate (13), the subunit is magnet or is arranged successively by least one set of magnet and iron core, the composite plate (13) permeability magnetic material (2) or to be arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), composite plate (13) with mover (60) at least one subunit clearance fit, the subunit of composite plate (13) He Yuqi clearance fit In one be connected at least one friction catch mechanism (9).Be provided on mover beam (61) floating position-limiting guiding pair (10) and Limition orientation secondary (16) and limit beam (20) are slided, is provided with buffer spring (21) on the limit beam (20), composite plate (13) It is arranged on floating position-limiting guiding pair (10) and with one in the subunit of composite plate (13) clearance fit at least one A friction catch mechanism (9) is connected, another setting is pushed away in sliding limition orientation secondary (16) by least one set of subunit Dynamic or pulling.
Embodiment 7
As shown in Fig. 3,4 and 25-31, elevator is directly driven in efficient permanent magnet reinforcement safety arrestment, including the fixation arranged along hoistway Basis, mover beam (61), carriage, the mover (60) being arranged on mover beam (61), friction catch mechanism (9) are arranged in fixation On the basis of stator (11) and guide rail, mover (60) is made of at least one set of subunit, and stator (11) is by least one set of stator Unit composition, mover (60) and stator (11) are equipped with composition linear motor, which is characterized in that set in the side of mover (60) It is equipped with composite plate (13), the subunit is magnet or is arranged successively by least one set of magnet and iron core, described compound Plate (13) is permeability magnetic material (2) or is arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), composite plate (13) with mover (60) at least one subunit clearance fit, the subunit of composite plate (13) He Yuqi clearance fit In one be connected at least one friction catch mechanism (9).It is provided on mover beam (61) back-shaped beam (201), it is described back-shaped Concentrated setting has floating slide-and-guide pair, composite plate (13) or the subunit with composite plate (13) clearance fit on beam (201) In one be arranged and be connected in floating slide-and-guide pair and at least one friction catch mechanism (9), another and back-shaped beam (201) or mover beam (61) is connected and is pushed or pull on by least one set of subunit.The floating slide-and-guide pair includes setting Sliding limiting slot (200) and floating position-limiting slot (202) in back-shaped beam (201) are set, setting is slided in sliding limiting slot (200) Dynamic reset spring (203), setting floating reset spring (204) and floating guiding rail (205) in floating position-limiting slot (202) are multiple Plywood (13) passes through floating reset spring (204) and floating guiding rail with the subunit of composite plate (13) clearance fit (205) it is equipped with back-shaped beam (201), back-shaped beam (201) is connected with mover beam (61) or car frame or carriage.
Figure 25 ~ 27 are the straight drive elevator basic structure of composite plate floating sliding setting (including several floating slide-and-guide pairs) Schematic diagram.
Spherical ball and sliding block sliding limit is utilized in the longitudinal sliding motion of floating slide-and-guide pair and normal direction floating in Figure 25 Slot sliding pair realizes that it is sliding that sliding block sliding limiting slot is utilized in the longitudinal sliding motion of floating slide-and-guide pair and normal direction floating in Figure 26 Dynamic pair realizes that sliding block sliding limiting slot and dovetail is utilized in the longitudinal sliding motion of floating slide-and-guide pair and normal direction floating in Figure 27 Slot sliding pair is realized.Figure 28 is the straight drive elevator with the subunit of composite plate (13) clearance fit by sliding setting of floating Basic principle schematic.Figure 29 ~ 31 are the straight drive elevator basic principle schematic of composite plate floating sliding setting.
Illustrate the permanent magnetism normal force of the invention using linear motor itself below with reference to Figure 13 ~ 24 and Figure 25 ~ 31 and mentions Braking operation process of the lift as the straight drive elevator (elevator) of brake driving force:
As special equipment, brake generally requires two sets of setting for elevator or elevator, is located on A sections of movers and braking is arranged Brake B is arranged in device A on B sections of movers.It is described separately below for two kinds of structural principles.
One, the setting of composite plate flying height, subunit engaged therewith sliding setting
Service braking (from on-position is opened to): driver controller controls elevator orderly shutdown (0 speed), keeps A Carriage is lifted in section mover energization, and brake A continues to open, and then controlling B sections of movers makes the subunit cooperated with composite plate A A is moved down, and makes composite plate A from the open-circuit condition gradually Normal Force to short-circuit condition transition, between composite plate A and subunit A Be gradually increased, when being greater than the little pretightning force of returning spring of floating guiding pair, returning spring is compressed, subunit A and Gap between composite plate A is reduced rapidly, brake brake disc start to embrace guide rail (at this point, move down at about the 1/3 of total kilometres, Because of normal force and little, band-type brake power is smaller), later, subunit A continues to fall, when falling on bottom spacing place instantly, composite plate Into dead short state, the Normal Force between composite plate A and subunit A is maximum, realizes brake B maximum, force system It is dynamic, A sections of movers whereabouts are then controlled again to bottom spacing place, and brake A is closed completely, and realizes service braking.
Work is opened (from braking to opening state): drive control device A sections of movers of control are first powered to generating to be lifted enough The lifting force of carriage moves up supreme spacing place with the subunit A of composite plate A cooperation or close at upper limit, brake A is beaten Open, in opening procedure, composite plate A from short-circuit condition gradually to open-circuit condition transition, between composite plate A and subunit A Normal Force is gradually reduced, and when the little pretightning force of the returning spring for being less than floating guiding pair, brake is in returning spring Effect is lower to open (declutching), at this point, on move on at about the 2/3 of total kilometres, because returning spring restoring force is smaller, this declutch power also compared with Small, as subunit A continues to move up supreme spacing place, the gap between subunit A and composite plate A increases to maximum, braking Device brake disc declutches completely, then controls B sections of movers energizations again and generates lifting force opening brake B, realizes that brake operation is opened With elevator normal hoisting.
Two, the setting of composite plate floating glade plane space, subunit are connected with mover beam or car frame or carriage
Service braking (from on-position is opened to): driver controller (can share an elevator driving controller, be not necessarily to Separately set dedicated drive control device, power source special) control elevator orderly shutdown (zero velocity), keep A, B sections of mover energizations to lift Carriage, mover (including subunit A, B), mover beam and back-shaped beam remain static, and then, drive control device is gradually reduced Electromagnetic force is lifted in hovering, and when being less than the resultant force of self weight, reset spring and magnetic restoring force, composite plate A, B is in reset spring and magnetic Edge on back-shaped beam, the method between composite plate A, B and corresponding subunit A, B are gradually moved under restoring force collective effect upwards It is gradually increased to suction, brake A, B closure realize service braking.
Work is opened (from braking to opening state): drive control device (can share an elevator driving controller, without another If dedicated drive control device, power source special) control A, B section movers be first powered generate lift mover beam, car frame and sedan-chair enough The lifting force in compartment, then to move to composite plate on setting speed drive mover beam, mover (including subunit A, B), back-shaped beam A, the bottom of B or the bottom close to composite plate A, B, the Normal Force between composite plate A, B and corresponding subunit A, B is gradually Reduce, brake A, B are opened, and realize that brake operation is opened and elevator normal hoisting.
In the above-mentioned normal open or close course of work of two classes brake, it is shorter to mention or move down stroke on mover, generally exists Within tens millimeters (such as 10-50mm), the only impulse stroke quite with the electromagnet in ordinary electromagnetic formula deadman's brake.
In the case of accident power-off, mover is under self weight, reset spring and larger magnetic restoring force resultant force collective effect with several times Acceleration of gravity falls rapidly, primary Calculation, mover fall (i.e. brake) time be a few tens of milliseconds (such as 40ms) within, The distance of glide of carriage is less than 7mm, and gliding speed is less than 0.37m/s, if in view of when slipping down to about 2/3 stroke, brake system Power has reached the maximum the 1/2 of brake force, and from angle is rationally designed, 2 times of dynamic braking safe clearances have been able to brake at this time Firmly carriage, distance of glide and speed are smaller, much smaller than safety tongs set action speed (when beyond carriage specified speed of service 10% just act, the specified speed of service of the general above elevator of load-carrying 800kg is in 1 ~ 2.5m/s or more), it is sufficient to guarantee carriage and Personnel safety.
Lifting force is not enough or in the case of running out of steam in lifting process: due to subunit A, B be simultaneously with other movers Unit undertakes together promotes load, and either subunit A, B or other any group of or multiple groups subunit occur Lifting force not enough or the situation that runs out of steam, as long as the load that the subunit of remaining work is born is without departing from the maximum being able to bear Lifting force (generally 1.5 ~ 2 times of specified lifting forces), continues to be controlled by system, once exceed maximum bearing ability, straight-line electric Machine step-out, no matter whether system sends out band-type brake instruction, and mover is under self weight, reset spring and magnetic restoring force force action, Jiu Huiji When automatic implementation lifting force lack " self-protection " safety arrestment, fundamentally ensure the real time security of elevator (elevator) And reliability, indiscriminate dynamic, the frequently dynamic, malfunction for avoiding the mandatory reserve protection of safety tongs cause clamp and braking rail generation broken Bad property, severe impact, friction, vibration, the generation for the serious safeties accidents such as maintenance even personal injury of stopping transport.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (10)

1. efficient permanent magnet reinforcement deadman's brake, including friction catch mechanism (9) and the braking being connect with friction catch mechanism (9) Driving mechanism, which is characterized in that the braking drive organ includes composite plate (13) and dynamic magnetic grade (12), the composite plate (13) To be arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), the dynamic magnetic grade (12) be magnet (4) or It is arranged successively by least one set of magnet (4) and iron core (3), moves magnetic grade (12) and composite plate (13) clearance fit, it is compound One in plate (13) and dynamic magnetic grade (12) be connected at least one friction catch mechanism (9), another and outer driving device (91) it connects.
2. efficient permanent magnet reinforcement deadman's brake according to claim 1, which is characterized in that the braking drive organ is Two, be separately positioned on friction catch mechanism (9) two sides, the composite plate (13) of side braking drive organ or in dynamic magnetic grade one One in a composite plate (13) or dynamic magnetic grade (12) with other side braking drive organ with friction catch mechanism (9) phase Even.
3. efficient permanent magnet reinforcement deadman's brake according to claim 1, which is characterized in that braking drive organ includes frame Body (18), floating position-limiting guiding pair (10) is provided on the frame body (18) and sliding limition orientation is secondary (16), is moved magnetic grade (12) With one in composite plate (13) be arranged on floating position-limiting guiding pair (10) and at least one friction catch mechanism (9) phase Even, another setting pushes or pull in sliding limition orientation secondary (16) and by outer driving device;
Or braking drive organ includes back-shaped beam (201), concentrated setting has floating slide-and-guide pair on the back-shaped beam (201) (92), composite plate (13) or with the setting of the dynamic magnetic grade (12) of composite plate (13) clearance fit on floating slide-and-guide secondary (92) simultaneously It is connected at least one friction catch mechanism (9), another is connected with back-shaped beam (201) and is pushed or is drawn by outer driving device It is dynamic.
4. efficient permanent magnet reinforcement deadman's brake according to claim 3, which is characterized in that the floating position-limiting guiding pair (10) include the floating guiding rail being arranged on frame body (18), the floating position-limiting block of floating guiding rail end is set and is covered floating Reset spring on action-oriented rail, the sliding limition orientation secondary (16) include the slide-and-guide rail being arranged on frame body, setting Slide-and-guide rail end sliding limited block and cover the buffer spring on slide-and-guide rail;
The floating slide-and-guide secondary (92) includes sliding limiting slot (200) and floating position-limiting slot (202), in sliding limiting slot (200) setting sliding reset spring (203) in, setting floating reset spring (204) and floating are led in floating position-limiting slot (202) To rail (205), composite plate (13) or with the dynamic magnetic grade (12) of composite plate (13) clearance fit by floating reset spring (204) and Floating guiding rail (205) is equipped with back-shaped beam (201).
5. efficient permanent magnet reinforcement deadman's brake according to claim 1-4, which is characterized in that the outer driving Device is electromagnet, Electric Actuator, fluid power actuator, electro-hydraulic actuator, driving motor.
6. linear motor efficient permanent magnet reinforcement deadman's brake, including the stator (11) being arranged on immobilizing foundation, friction catch Mechanism (9), and the braking drive organ connecting with friction catch mechanism (9), the mover (60) being arranged on mover beam (61) are fixed Sub (11) are made of at least one set of stator unit, and mover (60) is made of at least one set of subunit, mover (60) and stator (11) it is equipped with composition linear motor, which is characterized in that the subunit is for magnet or by least one set of magnet and iron core It is arranged successively, composite plate (13) setting is described compound in the side of the mover (60) cooperated with linear motor stator electric (11) Plate (13) is permeability magnetic material (2) or is arranged successively by least one set of permeability magnetic material (2) and non-magnet material (1), described multiple At least one subunit clearance fit in plywood (13) and mover (60), the mover of composite plate (13) He Yuqi clearance fit One in unit is connected at least one friction catch mechanism (9).
7. linear motor efficient permanent magnet reinforcement deadman's brake according to claim 6, which is characterized in that mover beam (61) On be provided with floating position-limiting guiding pair (10) and sliding limition orientation is secondary (16), composite plate (13) and match with composite plate (13) gap One in the subunit of conjunction be arranged on floating position-limiting guiding pair (10) and at least one friction catch mechanism (9) phase Even, another setting pushes or pull in sliding limition orientation secondary (16) and by least one set of subunit;
Or back-shaped beam (201) are set on mover beam, concentrated setting has floating slide-and-guide pair (92) on the back-shaped beam (201), Composite plate (13) or with the setting of the subunit of composite plate (13) clearance fit on floating slide-and-guide secondary (92) and at least One friction catch mechanism (9) is connected, another is connected with back-shaped beam (201) or mover beam (61) and by least one set of mover list Member pushes or pull on.
8. elevator is directly driven in efficient permanent magnet reinforcement safety arrestment, including the immobilizing foundation arranged along hoistway, mover beam (61), carriage, The mover (60) being arranged on mover beam (61), friction catch mechanism (9) and is led at the stator being arranged on immobilizing foundation (11) Rail, mover (60) are made of at least one set of subunit, and stator (11) is made of at least one set of stator unit, mover (60) and fixed Sub (11) are equipped with composition linear motor, which is characterized in that it is provided with composite plate (13) in the side of mover (60), it is described dynamic Subelement is magnet or is arranged successively by least one set of magnet and iron core that the composite plate (13) is by least one set of magnetic conduction Material (2) and non-magnet material (1) are arranged successively, between at least one subunit in composite plate (13) and mover (60) Gap cooperates, one in the subunit of composite plate (13) He Yuqi clearance fit and at least one friction catch mechanism (9) phase Even.
9. elevator is directly driven in efficient permanent magnet reinforcement safety arrestment according to claim 8, which is characterized in that on mover beam (61) It is provided with floating position-limiting guiding pair (10) and sliding limition orientation secondary (16) and limit beam (20), is arranged on the limit beam (20) Have buffer spring (21), composite plate (13) and limits with one in the subunit of composite plate (13) clearance fit setting floating It is connected on position guiding pair (10) and at least one friction catch mechanism (9), another setting is secondary (16) in sliding limition orientation On, and pushed or pull on by least one set of subunit;
Or back-shaped beam (201) are provided on mover beam (61), concentrated setting has floating slide-and-guide pair on the back-shaped beam (201) (92), composite plate (13) or it is arranged with one in the subunit of composite plate (13) clearance fit in floating slide-and-guide pair (92) be connected on and at least one friction catch mechanism (9), another be connected with back-shaped beam (201) or mover beam (61) and by At least one set of subunit pushes or pull on.
10. elevator is directly driven in efficient permanent magnet reinforcement safety arrestment according to claim 9, which is characterized in that the floating is slided Action-oriented pair (92) includes the sliding limiting slot (200) and floating position-limiting slot (202) being arranged in back-shaped beam (201), is being slided Setting sliding reset spring (203) in limiting slot (200), in floating position-limiting slot (202) setting floating reset spring (204) and Floating guiding rail (205), composite plate (13) or passes through floating reset spring with the subunit of composite plate (13) clearance fit (204) be equipped with floating guiding rail (205) with back-shaped beam (201), back-shaped beam (201) and mover beam (61) or car frame or Carriage is connected.
CN201610138399.9A 2016-03-11 2016-03-11 High-efficiency permanent magnet booster safety brake and direct-drive elevator Active CN105621192B (en)

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CN108494213B (en) * 2018-05-18 2023-06-13 河南理工大学 A linear actuator with electromagnetic-permanent magnet hybrid action and its application method
EP4177208A1 (en) 2021-11-05 2023-05-10 Otis Elevator Company Safety brake system

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