CN104495566B - The damping system of the progressive damping force of elevator adaptability - Google Patents
The damping system of the progressive damping force of elevator adaptability Download PDFInfo
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- CN104495566B CN104495566B CN201410767827.5A CN201410767827A CN104495566B CN 104495566 B CN104495566 B CN 104495566B CN 201410767827 A CN201410767827 A CN 201410767827A CN 104495566 B CN104495566 B CN 104495566B
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- damping
- elevator
- buffer
- elevator car
- buffer board
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Classifications
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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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of damping system of the progressive damping force of elevator adaptability, the Buffer Unit for being included in elevator is formed the magnetorheological damping component of damping to elevator car during elevator car elastic compression；Magnetorheological damping component of the present invention intervenes damping in buffer spring compression process, form progressive buffer damping mode, and the parameter of the parameter adjustment magnetic flow liquid to be fallen according to elevator car, and damping force gradually increases in elevator car bottoms out buffering course, and increase process is rapid and gentle compared with common spring, final stage forms buffer damping, realize the ride comfort of downstream buffer and with enough variable damping forces, therefore the damping process of cushion stroke and laddering gradual change can be increased compared with prior art, the less spring of coefficient of elasticity can be used in scheme, elastic buffer of the adaptive damping intervention in later stage with reference to early stage, used suitable for express elevator, effect with dynamic application at any time.
Description
Technical field
The present invention relates to a kind of special safety equipment system, special type is related to security system when a kind of cage type elevator bottoms out.
Background technology
Cage type elevator is a kind of vehicles for solving vertical transport, is closely connected with daily life；It is existing
Cage type elevator is mainly made up of traction machine, switch board, elevator car, guide rail etc., realizes more rapid uplink and downlink；In order to
Realize uplink and downlink and relevant device be installed, building or other using cage type elevator place can type of construction elevators hoistway,
To realize trouble-free operation.
The uplink and downlink of cage type elevator typically by mechanical force draw realize, structure is complex, due to use environment,
The problems such as cycle and ageing equipment, quality, in the case of causing elevator elevator car without constraint or finite constraint under
Pendant, has more serious safety problem.In the prior art, in order to solve (directly to drop to hoistway by elevator car rigid touch bottom
Bottom) serious danger is caused to occupant, in shaft bottom, buffer unit is set；It is hydraulic pressure for express elevator buffer unit
Buffering, the structure of buffer spring is then typically used for slower elevators, and so considers the mainly coefficient of elasticity of spring, stroke
Relation between elevator car, therefore, express elevator can not then use the larger spring of coefficient of elasticity, otherwise have obvious
Rigid touch bottom is felt, so as to cause the accident；Important is above-mentioned buffer structure could not have according to the whereabouts of elevator car to be adapted to
Property, therefore row buffering can not be entered according to the situation of whereabouts.
Therefore, it is necessary to be improved to existing elevator cushion construction, used suitable for all cage type elevators, in elevator car
The progressive increase of damping force adaptability in buffering course is bottomed out, and the damping force later stage increased participates in, and realizes the smooth-going of downstream buffer
Property and with enough progressive damping forces, therefore cushion stroke can be increased compared with prior art and reduce the elasticity system of spring
Number, the security performance of hoisting elevator.
The content of the invention
In view of this, it is an object of the invention to provide a kind of damping system of the progressive damping force of elevator adaptability, suitable for all
Cage type elevator uses, the progressive increase of damping force adaptability in elevator car bottoms out buffering course, and the damping force later stage increased
Participate in, realize the ride comfort of downstream buffer and with enough progressive damping forces, therefore can increase compared with prior art slow
Rush stroke and reduce the coefficient of elasticity of spring, the security performance of hoisting elevator.
The damping system of the progressive damping force of elevator adaptability of the present invention, is included in the Buffer Unit of elevator by elevator car
The magnetorheological damping component of damping is formed during elastic compression to elevator car；
The magnetorheological damping component includes magnetorheological damping body and control system；
The control system includes：
Magnet coil, for providing electromagnetic field for magnetorheological damping body；
Power subsystem, for providing power supply for magnet coil；
Descent parameters detection unit, for detecting the descent parameters of elevator car；
CPU, for receiving the data-signal of descent parameters detection unit and according to the signal to power subsystem
Offer power command is provided.
Further, the magnetorheological damping body includes buffer board, cylinder body, damping piston and is fixedly connected with damping piston
Piston rod, it is magnetic flow liquid that the cylinder body is interior, and damping hole, Buffer Unit quilt of the piston rod in elevator are provided with damping piston
Engaged in elevator car compression process with buffer board, damping is formed to buffer board by damping piston；The magnet coil is located at cylinder
Around body, the buffer board face elevator car bottom；
Further, it is relative with piston rod on the buffer board be provided with by can it is axially directed in a manner of be coated at piston rod
Guide sleeve；
Further, the guide sleeve is arranged at buffer board by the way that a pedestal is integrally formed, and the pedestal has positioned at guiding
The contact face engaged in set with piston rod tip contact；
Further, the buffer board is used to set thickening at pedestal to handle, and is formed by pedestal successively upward horizontal size
The structure gradually increased；
Further, the buffer board upper surface, piston rod upper surface and pedestal lower surface are respectively provided with cushion；
Further, the descent parameters detection unit includes：
Falling speed detection sensor, for detecting elevator car falling speed parameter；
Elevator box weight parameter sensor, for detecting the real-time load weight parameter of elevator box；
Whereabouts contact detection sensor, fallen and when being contacted with Buffer Unit to buffering group for detecting elevator car
Pressure parameter caused by part.
Beneficial effects of the present invention：The damping system of the progressive damping force of elevator adaptability of the present invention, using magnetic current variable resistance
Buddhist nun's component intervenes damping in buffer spring (other bolsters also can) compression process, forms progressive buffer damping mode, and
The parameter of the parameter adjustment magnetic flow liquid to be fallen according to elevator car, magnetic flow liquid electrical current, which increases, if falling speed is big becomes
Thick, to increase damping force, and damping force gradually increases in elevator car bottoms out buffering course, and increases process and ball
For spring compared to rapid and gentle, final stage forms buffer damping, realizes the ride comfort of downstream buffer and with enough variable
Damping force, therefore the damping process of cushion stroke and laddering gradual change can be increased compared with prior art, bullet can be used in scheme
The less spring of property coefficient, the adaptive damping intervention in later stage are used suitable for express elevator, had with reference to the elastic buffer of early stage
The effect of dynamic application at any time so that elevator car bottoms out the comfortableness of preceding and contact Buffer Unit moment and reliability obtains
To effectively improving, the security performance of hoisting elevator.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention.
Embodiment
Fig. 1 is the structural representation of the present invention, as shown in the figure：The damping of the progressive damping force of elevator adaptability of the present embodiment
System, the Buffer Unit for being included in elevator are formed the magnetorheological of damping during the elastic compression of elevator car 1 to elevator car
Damper assembly；
The magnetorheological damping component includes magnetorheological damping body and control system；
The control system includes：
Magnet coil 18, for providing electromagnetic field for magnetorheological damping body；
Power subsystem 14, for providing power supply for magnet coil 18；
Descent parameters detection unit, for detecting the descent parameters of elevator car；
CPU 15, for receiving the data-signal of descent parameters detection unit and according to the signal to power supply list
Member sends offer power command；
Elevator box 1 can have different speed and inertia in dropping process according to different height and load-carrying, because
And for buffer unit, it is desirable to provide different cushion effects and damping force；In the present invention, descent parameters detection unit is utilized
The gravity that detects, speed and to pressure parameter caused by buffer unit, pass through CPU 15 and adjust magnet coil
18 energization intensity, to adjust magnetic field intensity, so as to reach adjustment magnetic flow liquid machinery, physical property purpose, with change resistance
Buddhist nun's power；When gravity, speed and to pressure parameter is bigger than normal caused by buffer unit when, in order to prevent rapid decrease and avoid rigidity
Bottom out, then increase energization intensity, magnetic flow liquid entirety retrogradation, damping force increase；Vice versa；CPU is according to much
Gravity, speed and use much energization intensity then to belong to existing to pressure parameter caused by buffer unit to pass through experiment
I.e. confirmable control method, will not be repeated here.
In the present embodiment, the magnetorheological damping body includes buffer board 13, cylinder body 9, damping piston 10 and and damping piston
10 piston rods 5 being fixedly connected, it is magnetic flow liquid that the cylinder body 9 is interior, and damping hole, the piston rod 5 are provided with damping piston 10
Elevator Buffer Unit (generally buffer spring) by elevator car compression process in engage with buffer board 13 (buffer board 13 with
The top of piston rod 5 has the spacing of setting, as shown in the figure), damping is formed to buffer board by damping piston 10；The magnet coil
18 around cylinder body 9, the face elevator car bottom of buffer board 13；In the present invention, the Buffer Unit of elevator is using buffering
Spring 3, before buffer spring 3 is compressed and is not reaching to compression limit, the piston rod 5 of damper assembly is depressed row, damping
Piston 10 has an effect to form damping, now determines damping force according to the drawdown parameter of elevator box 1, with 3 common shape of buffer spring
Into buffer damping, the mode that piston rod 5 engages with buffer board is usually the way of contact, i.e. the descending directly contact piston bar of buffer board
Upper end, you can realize the effect of descending damping；As illustrated, having damping hole on damping piston 10, (setting is big as needed
Small and quantity), is full of magnetic flow liquid in cylinder body, when piston moves under external force, magnetic flow liquid only by damping hole by,
Viscosity determines damping force and forms damping；As illustrated, cylinder body 9 be embedded in basis 8 among, magnet coil 18 positioned at basis in and with
Basis 8 is isolated by division board, and the top of cylinder body 9 is sealed by cylinder cap 11, and cylinder cap 11 passes through the foundation bolt 7 that is embedded on basis 8
Cylinder body 9 is sealedly attached to, the axle sleeve 12 for being oriented to piston rod is integrally formed on cylinder cap 11；Using buffer spring and damping group
The structure that part is combined, damper assembly, which engages, in elevator car bottoms out buffering course plays a part of laddering buffer damping,
The structure can increase the cushion stroke of Buffer Unit and reduce the elastic coefficient, the whole buffering of the realization that can more relax；Should
Structure uses suitable for all cage type elevators, when elevator accident bottoms out, can ensure that gentle, gradually progressive compression buffers.
In the present embodiment, the Buffer Unit includes the buffer spring 3 being arranged on basis 8, and buffer board 13 is supported in slow
Rush the top of spring 3；Basis 8 refers to the basis of the installation for Buffer Unit；As illustrated, it is additionally provided with use on basis 8
In the spring base 6 of installation buffer spring 3, maximum compression stroke and limited compression position available for regulation spring 3；Buffer spring
3 quantity can be installed as needed, and generally more than three are along the circumferential direction uniformly arranged；Buffer board 13 and buffer spring
3 tops can use lead installation to avoid buffering or depart from when rebounding with capable welding is merged into；The buffer spring 3 is logical
Cross the spring base 6 being fixed on basis 8 and be installed on basis, ensure the installation strength of spring and spring base can be changed as needed
Highly, the purpose of adjustment its length is reached, so as to adjust compression travel.
In the present embodiment, the buffer spring 3 is variable-pitch spring；The damping force in elevator car 1 bottoms out buffering course
Gradually increase, and increase process is rapid and gentle compared with common spring, realizes the ride comfort of downstream buffer and has enough
Damping force, therefore cushion stroke and the coefficient of elasticity of gradual change can be increased compared with prior art, automatic adjustment spring power can be formed
The technical scheme of this critical performance parameters, be applicable to express elevator use, the effect with dynamic application at any time, with reference to
The relatively progressive damping structure of buffer spring so that elevator car 1 bottoms out the comfortableness of preceding and contact Buffer Unit moment
Effectively improved with reliability, the security performance of hoisting elevator.
In the present embodiment, the pitch of the buffer spring 3 becomes larger from bottom to top；The wink that can be contacted in elevator car 1
Between can submissive buffering, and gradually increase coefficient of elasticity at once.
In the present embodiment, with piston rod 5 it is relative be provided with the buffer board by can it is axially directed in a manner of be coated at work
The guide sleeve 4 of stopper rod 5；Using the structure of guide sleeve 4, the lateral orientation of buffer board 13 and piston rod 5 can be limited, it is effective so as to realize
Engagement damping.
In the present embodiment, the guide sleeve 4 is arranged at buffer board 13 by the way that a pedestal 2 is integrally formed, and the pedestal 2 has
The contact face engaged in guide sleeve 4 with piston rod tip contact；As illustrated, structure top base 2 is located at guide sleeve 4
It is interior, base height can be set as needed using base construction, (contact face is with piston rod in normality so as to adjust engagement stroke
Under setting spacing), and increase engagement after load ability.
In the present embodiment, the buffer board 13 is used to set thickening at pedestal 2 to handle, and is formed upward successively by pedestal 2
The structure that horizontal size gradually increases；As illustrated, being formed down staircase structural model by buffer board 13, thickening layer, base are followed successively by
Seat 2 and guide sleeve 4, stable load basis is formed according to the force structure of damping, so as to be further ensured that buffer damping process
In security.
In the present embodiment, the upper surface of buffer board 13, the upper surface of piston rod 5 and the lower surface of pedestal 2 are respectively provided with buffering
Layer；The cushion can prevent direct rigid contact, so as to ensure security and compliance.
In the present embodiment, the descent parameters detection unit includes：
Falling speed detection sensor 16, for detecting elevator car falling speed parameter；Elevator is arranged at, can be used
Hall element such as tests the speed at the existing velocity sensor, will not be repeated here；
Elevator box weight parameter sensor 19, for detecting the real-time load weight parameter of elevator box.It may be disposed at
Elevator car bottom or other load parts；
The present embodiment also includes whereabouts contact detection sensor 17, for detect elevator car 1 fall and with buffering
To pressure parameter caused by Buffer Unit during component touch；It is anon-normal that whereabouts contact detection sensor 17 is arranged at elevator box
The part contacted when often falling, such as the buffer board upper surface of the present embodiment；
The needs of buffering inertia can be obtained by above-mentioned elevator car falling speed parameter and real-time load weight parameter,
The size of electric current is adjusted according to the needs, and the adjustment can be carried out in elevator dropping process, according to falling speed, overall weight
Amount obtains real-time inertial parameter, so as to adjust the viscosity of magnetic flow liquid in real time, and has and targetedly forms damping；Actually make
Used time, there is effect promptly and accurately to pressure parameter caused by Buffer Unit when elevator car falls and contacted with Buffer Unit
Fruit, actual impulsive force can be accurately obtained, should so as to reach the purpose of amendment to the inertial parameter of above-mentioned two gain of parameter
It is defined by pressure parameter and the big person of inertia force obtained；Due to real-time detection, damping force tool is caused in dropping process
Targetedly increase or adjust, be also unlikely to the change with mutation and impulsive force after pressure parameter amendment；Above-mentioned acquisition
Inertial parameter simultaneously adjusts magnetic flow liquid viscosity according to inertial parameter, by simply calculating and the program of prior art can be real
It is existing, it will not be repeated here.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (4)
- A kind of 1. damping system of the progressive damping force of elevator adaptability, it is characterised in that：The Buffer Unit for being included in elevator is electric The magnetorheological damping component of damping is formed during elevator car resilient compression to elevator car；The magnetorheological damping component includes magnetorheological damping body and control system, the magnetorheological damping body include buffer board, Cylinder body, damping piston and the piston rod being fixedly connected with damping piston, it is magnetic flow liquid that the cylinder body is interior, is provided with damping piston Damping hole, the piston rod elevator Buffer Unit by elevator car compression process in engage with buffer board, by damping piston Buffer board is formed and damped；It is relative with piston rod on the buffer board be provided with by can it is axially directed in a manner of be coated at piston rod Guide sleeve；The control system includes：Magnet coil, for providing electromagnetic field for magnetorheological damping body, the magnet coil is located at around cylinder body, the buffer board Face elevator car bottom；Power subsystem, for providing power supply for magnet coil；Descent parameters detection unit, for detecting the descent parameters of elevator car；CPU, for receiving the data-signal of descent parameters detection unit and being sent according to the signal to power subsystem Power command is provided；The descent parameters detection unit includes：Falling speed detection sensor, for detecting elevator car falling speed parameter；Elevator box weight parameter sensor, for detecting the real-time load weight parameter of elevator box；Whereabouts contact detection sensor, fall and Buffer Unit is produced when being contacted with Buffer Unit for detecting elevator car Raw pressure parameter.
- 2. the damping system of the progressive damping force of elevator adaptability according to claim 1, it is characterised in that：The guide sleeve Buffer board is arranged at by the way that a pedestal is integrally formed, the pedestal has what is engaged in guide sleeve with piston rod tip contact Contact face.
- 3. the damping system of the progressive damping force of elevator adaptability according to claim 2, it is characterised in that：The buffer board For setting thickening at pedestal to handle, and formed by the pedestal structure that upward horizontal size gradually increases successively.
- 4. the damping system of the progressive damping force of elevator adaptability according to claim 1, it is characterised in that：The buffer board Upper surface, piston rod upper surface and pedestal lower surface are respectively provided with cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767827.5A CN104495566B (en) | 2014-12-13 | 2014-12-13 | The damping system of the progressive damping force of elevator adaptability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767827.5A CN104495566B (en) | 2014-12-13 | 2014-12-13 | The damping system of the progressive damping force of elevator adaptability |
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| CN104495566A CN104495566A (en) | 2015-04-08 |
| CN104495566B true CN104495566B (en) | 2018-01-02 |
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| CN201410767827.5A Active CN104495566B (en) | 2014-12-13 | 2014-12-13 | The damping system of the progressive damping force of elevator adaptability |
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Families Citing this family (1)
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| CN112747073A (en) * | 2020-12-10 | 2021-05-04 | 中国计量大学上虞高等研究院有限公司 | Intelligent hydraulic buffer and buffering method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492312A (en) * | 1995-04-17 | 1996-02-20 | Lord Corporation | Multi-degree of freedom magnetorheological devices and system for using same |
| JP2004051237A (en) * | 2002-07-16 | 2004-02-19 | Otis Elevator Co | Spring shock absorber for elevator |
| JP2005054847A (en) * | 2003-08-01 | 2005-03-03 | Univ Kanagawa | Viscous variable fluid shock absorber |
| CN103032510B (en) * | 2012-12-12 | 2016-06-01 | 重庆大学 | Stretching type magnetic current becomes snubber |
| CN103322113B (en) * | 2013-05-31 | 2015-05-27 | 重庆大学 | Controllable torque device based on magnetorheological materials |
| CN204528994U (en) * | 2014-12-13 | 2015-08-05 | 重庆和航科技股份有限公司 | The magnetorheological dynamic Auxiliary Damping shock absorber of elevator |
| CN204324637U (en) * | 2014-12-13 | 2015-05-13 | 重庆和航科技股份有限公司 | The damping arrangement that the magnetorheological buffering of elevator is auxiliary |
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Effective date of registration: 20200925 Address after: New Jing Zhong Yang She Zhen Tang Suzhou City, Jiangsu province 215600 city of Zhangjiagang City, room 5 No. 10-1 Patentee after: ZHANGJIAGANG OUWEI AUTOMATION RESEARCH AND DEVELOPMENT Co.,Ltd. Address before: Jiulongpo Branch Park four street 400039 Chongqing City No. 52 standard factory building 3 floor K Patentee before: CHONGQING HEHANG TECHNOLOGY Co.,Ltd. |
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