CN104477731B - The buffer unit of elevator composited damping force - Google Patents
The buffer unit of elevator composited damping force Download PDFInfo
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- CN104477731B CN104477731B CN201410776411.XA CN201410776411A CN104477731B CN 104477731 B CN104477731 B CN 104477731B CN 201410776411 A CN201410776411 A CN 201410776411A CN 104477731 B CN104477731 B CN 104477731B
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- damping
- buffer unit
- elevator
- buffer
- piston rod
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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
-
- 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
Abstract
The invention discloses a kind of buffer unit of elevator composited damping force, including Buffer Unit and the magnetorheological damping component that forward and reverse with Buffer Unit can engage and be formed damping；The present invention is in the variable positive damping intervention of elevator box improper whereabouts buffering later stage, in conjunction with the elastic buffer of early stage, use suitable for express elevator, there is the effect of dynamic application at any time so that elevator car bottoms out the comfortableness and reliability of the moment of front and contact Buffer Unit and effectively improves；Simultaneously, buffering is bottomed out in car and terminates the speed that the engagement of pre reduction damper assembly is played a part of to limit resilience, ensure gentle resilience, and according to elevator car fall parameter adjustment magnetic flow liquid parameter, as falling speed greatly if can cause bigger screen resilience, then magnetic flow liquid electrical current increase retrogradation, to increase reduction damping force, meanwhile, magnetic flow liquid viscosity is also can adjust in reduction damping process, it is ensured that resilience Erlotinib.
Description
Technical field
The present invention relates to a kind of special safety equipment system, special type is related to the security system that a kind of cage type elevator is bottomed out.
Background technology
Cage type elevator is a kind of vehicles for solving vertical transport, is closely connected with daily life；Existing
Cage type elevator is mainly made up of traction machine, switch board, car, guide rail etc., realizes more rapidly uplink and downlink；In order to realize
Uplink and downlink simultaneously install relevant device, building or other using where cage type elevator can type of construction elevators hoistway, with reality
Existing trouble-free operation.
By mechanical force traction, the uplink and downlink of cage type elevator typically realize that structure is complex, due to use environment,
The problems such as cycle and ageing equipment, quality, drop in the case of causing lift car without constraint or finite constraint, tool
There is more serious safety problem.In prior art, in order to solve by car rigid touch bottom (directly dropping to shaft bottom) to taking advantage of
Seated user causes serious danger, arranges buffer unit in shaft bottom；For express elevator buffer unit is hydraulic cushion, for
Slower elevators then typically using buffer spring structure, and so consider mainly the coefficient of elasticity of spring, stroke and car it
Between relation, if elastic force is excessive, larger bounce can be carried out, cause bigger injury, therefore, express elevator then can not
Using the spring that coefficient of elasticity is larger；And in fact, for express elevator, due to speed, and Action of Gravity Field is added, liquid
The buffering of pressure buffering has more slowly, can still produce more serious rigid collision, so as to cause the accident；Simultaneously for compared with
For the larger elevator of high speed and load-carrying, then make load on spring excessive using the larger spring of coefficient of elasticity, and do not have
There is the characteristic for adjusting at any time, adaptability could not be had according to the whereabouts of elevator car, therefore cannot be carried out according to situation about falling
Buffering.
Accordingly, it would be desirable to be improved to existing elevator cushion construction, it is suitable to all cage type elevators and uses, in elevator car
There is damping force adaptability in improper buffering course when bottoming out to go forward one by one increase, and the damping force later stage for increasing participates in, realization
The ride comfort of downstream buffer and with enough damping forces that goes forward one by one, therefore can increase cushion stroke compared with prior art and subtract
The coefficient of elasticity of little spring, the security performance of hoisting elevator, and whole process ensure that gentle, gradual compression buffering and
Return, it is to avoid because buffer spring coefficient of elasticity is excessive or the long and caused secondary safety for causing that rebounds of compression travel
Accident.
Content of the invention
In view of this, it is an object of the invention to provide a kind of buffer unit of elevator composited damping force, is suitable to all van-type electricity
Ladder is used, and in the buffering course when elevator car occurs improper bottoming out, damping force adaptability is gone forward one by one increase, and the resistance of increase
Buddhist nun's power later stage participates in, and realizes the ride comfort of downstream buffer and with enough damping forces that goes forward one by one, therefore compared with prior art
Cushion stroke can be increased and reduce the coefficient of elasticity of spring, the security performance of hoisting elevator, and whole process and be ensure that gently
, gradual compression buffering and return, it is to avoid because the coefficient of elasticity of buffer spring is excessive or compression travel is long and cause
The security incident that causes of secondary bounce-back.
The buffer unit of the elevator composited damping force of the present invention, including Buffer Unit and magnetorheological damping component；
The Buffer Unit is fixedly installed on elevator bottom to be used for preventing elevator car rigid touch bottom；
The magnetorheological damping component includes magnetorheological damping body and control system；
The control system includes：
Solenoid, for providing electromagnetic field for magnetorheological damping body；
Power subsystem, for providing power supply for solenoid；
Descent parameters detector unit, for detecting the descent parameters of elevator car；
CPU, for receiving the data-signal of descent parameters detector unit and according to the signal to power subsystem
Offer power command is provided.
The piston rod that magnetorheological damping body is included cylinder body, damping piston and is fixedly connected with damping piston, in the cylinder body
For magnetic flow liquid, the solenoid is located at around cylinder body, is provided with damping hole on damping piston, and the piston rod is in Buffer Unit
Engaged by positive with Buffer Unit in elevator car compression process, positive damping is formed to Buffer Unit by damping piston, and living
Stopper rod and Buffer Unit reverse engagement Buffer Unit is compressed by elevator car after between rebound stroke, by damping piston pair
Buffer Unit forms reduction damping.
Further, buffer spring on the basis of the Buffer Unit includes being arranged at and it is supported in slow at the top of buffer spring
Punching, the buffer board is just to elevator car bottom；The piston rod is compressed by elevator car by buffer board in buffer spring
During with buffer board forward direction engage, form damping to buffer board by damping piston；
Further, relative with piston rod be provided with the buffer board fairlead and for engage with piston rod reduction resistance
Buddhist nun's power fastener, the fairlead by can axially directed in the way of be coated at piston rod, the reduction damping force fastener is slow
Rush spring to be compressed between rebound stroke and piston rod reverse engagement by elevator car, the piston normality is close to cylinder base；
Further, reduction damping force fastener be by can along piston rod radially wobble in the way of be articulated with connecing on buffer board
Close bar, engagement bar lower end is provided with the engagement boss for extending internally, be provided with the piston rod for after engagement bar is descending with connect
Close the engagement groove that boss forms hasp；The fairlead is provided with the groove that at least can be used for radial through engagement boss；
Further, engagement bar passes through gravity vertically downward, and engagement boss extends inward into fairlead extended distance to be made to connect
Close boss inner end and can extend into engagement groove；It is used for by the groove for engaging boss in the tangential of fairlead on the fairlead
To engaging boss shape into spacing.
Further, the engagement boss lower surface is the acclivitous inclined-plane of ecto-entad, and the piston rod top is cone
Platform structure；
Further, the engagement groove is the cannelure around piston rod；
Further, the axial location of boss is engaged when the lower edge of the engagement groove is less than buffer spring limited compression；
Further, the fairlead is arranged at buffer board by a pedestal is integrally formed, and the pedestal has positioned at guiding
Contact end face in set with the engagement of piston rod tip contact；
Further, the buffer board upper surface, piston rod upper surface and pedestal lower surface are respectively provided with cushion；
Further, the descent parameters detector 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；
Further, whereabouts contact detection sensor, during for detecting that elevator car is fallen and contacted with Buffer Unit
The pressure parameter produced by Buffer Unit.
Beneficial effects of the present invention：The buffer unit of the elevator composited damping force of the present invention, using Buffer Unit and magnetic current
And magnetorheological damping component is in buffering group the structure that mutative damp component combines, magnetorheological damping component include two kinds of functions, i.e.,
Positive damping is intervened in part compression process, forms the positive buffer damping mode that goes forward one by one, and the parameter fallen according to elevator car
The parameter of adjustment magnetic flow liquid, if falling speed is big, magnetic flow liquid electrical current increases retrogradation, to increase damping force, and
Elevator car bottoms out damping force in buffering course and gradually increases, and increase process is rapid and gentle compared with common spring, finally
Stage forms positive buffer damping, realizes the ride comfort of downstream buffer and with enough variable damping forces, therefore with existing
Technology compares the damping process that can increase cushion stroke and laddering gradual change, can adopt the less spring of coefficient of elasticity in scheme,
The adaptive damping intervention in later stage combines the elastic buffer of early stage, it is adaptable to which express elevator is used, the effect with dynamic application at any time
Really so that elevator car bottoms out the comfortableness and reliability of the moment of front and contact Buffer Unit and effectively improves, and is lifted
The security performance of elevator；
Meanwhile, buffering is bottomed out in car and terminate the speed that the engagement of pre reduction damper assembly is played a part of to limit resilience, protect
The gentle resilience of card, and the parameter of the parameter adjustment magnetic flow liquid fallen according to elevator car, as falling speed greatly if can cause
Bigger screen resilience, then magnetic flow liquid electrical current increasing retrogradation, to increase reduction damping force, meanwhile, in reduction damping process
In also can adjust magnetic flow liquid viscosity, it is ensured that resilience Erlotinib；The present invention realizes downstream buffer using Buffer Unit, due to magnetic current
The presence of mutative damp component, can also increase the cushion stroke and coefficient of elasticity of Buffer Unit, thus the realization that more can be relaxed is slow
Punching, avoids quick resilience using reduction damping after buffering, it is ensured that final buffering effect；Therefore, the structure is suitable to all van-types
Elevator is used, and when elevator accident is bottomed out, ensure that gentle, gradual compression buffering and return, it is to avoid because buffering elastic
The coefficient of elasticity of spring is excessive or the long and caused secondary security incident for causing that rebounds of compression travel.
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.
Specific embodiment
Fig. 1 is the structural representation of the present invention, as shown in the figure：The buffer unit of the elevator composited damping force of the present embodiment,
Including Buffer Unit and magnetorheological damping component；
The Buffer Unit is fixedly installed on elevator bottom to be used for preventing elevator car rigid touch bottom；
The magnetorheological damping component includes magnetorheological damping body and control system；
The control system includes：
Solenoid 19, for providing electromagnetic field for magnetorheological damping body；
Power subsystem 16, for providing power supply for solenoid；
Descent parameters detector unit, for detecting the descent parameters of elevator car；
CPU 17, for receiving the data-signal of descent parameters detector unit and according to the signal to power supply list
Unit sends offer power command；
The piston rod 12 that magnetorheological damping body is included cylinder body 9, damping piston 10 and is fixedly connected with damping piston 10, described
It is magnetic flow liquid in cylinder body 9, the solenoid 19 is located at around cylinder body 9, is provided with damping hole, the piston on damping piston 10
Bar 12 is engaged with Buffer Unit forward direction in Buffer Unit is by elevator car compression process, Buffer Unit is formed by damping piston
Positive damping, and while positive damping is formed or before, piston rod 10 causes Buffer Unit with Buffer Unit reverse engagement
To between rebound stroke after being compressed by elevator car 1, reduction damping is formed to Buffer Unit by damping piston 10；
During being somebody's turn to do, as illustrated, having damping hole (being sized as needed and quantity), cylinder body on damping piston 10
Interior full of magnetic flow liquid, when piston is moved under external force, magnetic flow liquid is only passed through by damping hole, and viscosity determines damping force
And form damping；As illustrated, cylinder body 9 is embedded among basis 8, solenoid 18 is located in basis and with basis 8 by isolating
Plate is isolated, and 9 top of cylinder body is sealed by cylinder cap 11, and cylinder cap 11 is sealedly attached to cylinder body by the foundation bolt 7 being embedded on basis 8
9, the axle sleeve 12 for being oriented to piston rod is integrally formed on cylinder cap 11；Combined with magnetorheological damping component using Buffer Unit
Structure, bottom out in buffering course the positive engagement of magnetorheological damping component in elevator car and play laddering positive buffer damping
Effect, the structure can increase the cushion stroke of Buffer Unit and reduce the elastic coefficient, and the realization that more can be relaxed is whole slow
Punching；The structure is suitable to all cage type elevators and uses, and when elevator accident is bottomed out, ensure that compression that is gentle, gradually going forward one by one
Buffering.
For magnetic flow liquid, elevator box 1 can have different speed according to differing heights and load-carrying in dropping process
Degree and inertia, thus for buffer unit for, it is desirable to provide different cushion effect and positive damping force；In the present invention, profit
Gravity, speed and the pressure parameter produced by buffer unit detected with descent parameters detector unit, is processed by central authorities
Unit 15 adjusts the energization intensity of solenoid 18, to adjust magnetic field intensity, mechanical, physical so as to reach adjustment magnetic flow liquid
The purpose of matter, to change positive damping force；When gravity, speed and to buffer unit produce pressure parameter bigger than normal when, in order to
Prevent rapid decrease and avoid rigid touch bottom, then increase energization intensity, magnetic flow liquid entirety retrogradation, damping force increase；Otherwise also
So；The adopted much energizations of pressure parameter that CPU is produced according to great gravity, speed and to buffer unit
Intensity then belongs to existing by testing i.e. confirmable control method, will not be described here.
Meanwhile, before forming positive damping or simultaneously, piston rod 10 causes Buffer Unit electric with Buffer Unit reverse engagement
To between rebound stroke after the compression of elevator car body 1, reduction damping (reversely damping) is formed to Buffer Unit by damping piston 10；Reduction
Damping refers to form damping when the reduction after being compressed deforms；The mode that piston rod 12 is engaged with Buffer Unit can adopt machine
Tool formula automatic locking, electromagnetism engagement etc. mode, certainly, electromagnetism engagement needs to be acquired data and automatically controls,
Will not be described here；
Positive engagement refers to be engaged in dropping process downwards, forms damping force upwards, prevents from hurtling down；Conversely,
It is then reverse engagement, forms downward damping force；There is the structure of cylinder body and damping piston and piston rod composition bidirectional damper to imitate
Really, and realize bidirectional damper be then make piston be located at cylinder body in the middle part of, belong to the structure of prior art, will not be described here.
In the present embodiment, the Buffer Unit include being arranged on the basis of buffer spring 3 and be supported in buffer spring top
The buffer board 15 in portion, the buffer board 15 is just to elevator car bottom；；The piston rod 12 passes through buffer board in buffer spring 3
15 are engaged by positive with buffer board 15 in 1 compression process of elevator car, form damping to buffer board by damping piston 10；Basis 8
Refer to the basis of the installation for Buffer Unit；As illustrated, being additionally provided with the basis of for installing the bullet of buffer spring 3
Spring abutment 6, can be used for maximum compression stroke and the limited compression position for adjusting spring 3；The quantity of buffer spring 3 can be entered as needed
Row is installed, and generally more than three are along the circumferential direction uniformly arranged；Can be pacified using lead column at the top of buffer board 15 and buffer spring 3
Assembling merging is welded, it is to avoid departed from when buffering or bounce-back.
In the present embodiment, the fairlead 4 is arranged at buffer board 15 by a pedestal 22 is integrally formed, and the pedestal 22 has
There is the contact end face with the engagement of 12 tip contact of piston rod in fairlead 4；；As illustrated, structure top base 22 is located at leading
Into set 4, base height can be set as needed using base construction, so as to adjust engagement stroke (contact end face and piston rod
Setting spacing under normal conditions), and increase the load ability after engagement.
In the present embodiment, 15 upper surface of the buffer board, 12 upper surface of piston rod and 22 lower surface of pedestal are respectively provided with slow
Rush layer；The cushion is prevented from direct rigid contact, so as to ensure security and compliance.
In the present embodiment, the buffer spring 3 is variable-pitch spring；Damping force in buffering course is bottomed out in elevator car 1
Gradually increase, and increase process is rapid and gentle compared with common spring, realize the ride comfort of downstream buffer and with enough
Damping force, therefore can increase the coefficient of elasticity of cushion stroke and gradual change compared with prior art, can form automatic adjustment spring power
The technical scheme of this critical performance parameters, be applicable to express elevator use, the effect with dynamic application at any time, in conjunction with
The relative damping structure for going forward one by one of buffer spring so that elevator car 1 bottoms out the comfortableness of the moment of front and contact Buffer Unit
Effectively improve with reliability, the security performance of hoisting elevator.
In the present embodiment, the pitch of the buffer spring 3 is become larger from bottom to top；Can be in the wink of the contact of elevator car 1
Between can submissive buffering at once, and gradually increase coefficient of elasticity.
In the present embodiment, relative with piston rod 12 be provided with the buffer board 15 fairlead 4 and for and piston rod 12
The reduction damping force fastener 14 of engagement, the fairlead 4 by can axially directed in the way of be coated at piston rod 12, the reduction
Damping force fastener is compressed between rebound stroke and 12 reverse engagement of piston rod, the work by elevator car 1 in buffer spring 3
Fill in 10 normalities and be close to 9 bottom of cylinder body；The structure can ensure that buffer board 15 is stablized descending after being compressed in buffer spring 3, and protects
Card reduction damping force fastener 14 is aligned with piston rod 12 and is engaged.
In the present embodiment, reduction damping force fastener 14 be by can along piston rod 12 radially wobble in the way of be articulated with buffering
Engagement bar on plate 15, engagement bar lower end are provided with the engagement boss 13 for extending internally, and are provided with for connecing on the piston rod 12
With the engagement groove 5 for engaging the formation hasp of boss 13 after conjunction bar is descending；The fairlead 4 be provided with least can be used for radial through
The groove 2 of engagement boss 13；Buffer board overcomes the elastic force compression spring of buffer spring 3 in the presence of lift car whereabouts,
When falling setting position under lift car 1, the embedded engagement groove 5 of engagement boss 13 is formed reversely, now, while form forward direction connecing
Close or positive engagement has not yet been formed；The position that piston rod 12 is contacted with engagement boss 13 has inclination, to produce radially outward
Component, set back at engagement boss after making engagement bar outside and make the embedded engagement groove of engagement boss；The setpoint distance
Normally close in the limited compression position of buffer spring, to give full play to the buffering of spring, extend compression travel.
In the present embodiment, engagement bar by gravity vertically downward, engagement boss 13 extend inward into fairlead and extend away from
Engagement groove 5 be can extend into from 13 inner end of engagement boss is made；It is used for leading by engaging the groove of boss on the fairlead 4
To the tangential to engaging boss shape into spacing, the tangential direction for tangentially referring to along the circumferential direction of fairlead 4 of set 4；Structure letter
Single and easy for installation, and ensure the engagement between engagement boss 13 and engagement groove 5 and separate, it is to avoid there is deviation, particularly
Reduction damping process upon engagement, prevents from disengaging so as to avoiding losing damping force.
In the present embodiment, engagement boss 13 lower surface is the acclivitous inclined-plane of ecto-entad, the piston rod 12
Top is frustum structure；The structure that frustum structure and inclined-plane combine to ensure that and produce radially outer point in the moment of contact
Power, it is to avoid disturb, so that engaging process is smooth.
In the present embodiment, the engagement groove 5 is the cannelure around piston rod；Processing is simply and readily engaged, it is to avoid
Because bonding station is not corresponding caused by the rotation of piston rod 12.
In the present embodiment, the lower edge of the engagement groove 5 engages the axle of boss 13 when being less than 3 limited compression of buffer spring
To position, it is to avoid engagement boss 13 exceedes engagement groove 5 during descending, prevents the rigid contact that there is no need, so as to keep away
Exempt from the damage of generation part.
In the present embodiment, the descent parameters detector unit includes：
Falling speed detection sensor 18, for detecting elevator car falling speed parameter；Elevator is arranged at, can be adopted
Hall element such as tests the speed at the existing velocity sensor, will not be described here；
Elevator box weight parameter sensor 21, for detecting the real-time load weight parameter of elevator box.May be disposed at
Elevator car bottom or other load parts；
The present embodiment also includes whereabouts contact detection sensor 19, for detect elevator car 1 fall and with buffering
Pressure parameter Buffer Unit produced during component touch；Whereabouts contact detection sensor 17 is arranged at elevator box anon-normal
The part contacted when often falling, the buffer board upper surface of such as the present embodiment；
The needs that buffering inertia can be obtained by above-mentioned elevator car falling speed parameter and real-time load weight parameter,
The size of adjustment electric current is needed according to this, 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 the viscosity of real-time adjustment magnetic flow liquid, and has；Real
When border uses, elevator car is fallen and the pressure parameter that Buffer Unit is produced is had when being contacted (positive engagement) with Buffer Unit
Effect promptly and accurately, can accurately obtain actual impulsive force, so as to reach to the inertial parameter of above-mentioned two gain of parameter
The purpose of correction, should be defined by pressure parameter and the big person of the inertia force for obtaining；Due to having detection in real time, in dropping process
So that positive damping force has and targetedly increase or adjust, after pressure parameter correction, also it is unlikely to the change and punching with mutation
Hit power；The inertial parameter of above-mentioned acquisition simultaneously adjusts magnetic flow liquid viscosity according to inertial parameter, is calculated and existing by simple
The program of technology can achieve, and will not be described here.
Meanwhile, according to the elastic force ginseng after elevator car falling speed parameter and real-time load weight parameter and positive damping
Number, similar with forward direction damping force, CPU obtains inertial data in advance according to above-mentioned parameter and adjusts electricity in advance
The size of stream, and the adjustment can be carried out in elevator dropping process, obtain real-time inertia according to falling speed, overall weight
Parameter, so as to obtain the maximum screen resilience scope being likely to form, the viscosity of real-time adjustment magnetic flow liquid, and has targetedly
Form reduction damping；Certainly, pressure parameter has effect promptly and accurately, can accurately obtain actual impulsive force；Due to tool
There is detection in real time, in the springback process after buffer limit, reduction damping force is had targetedly increase or adjust；With
Sample, reduce damping force be equally obtain inertial parameter and according to inertial parameter adjustment magnetic flow liquid viscosity, by letter
The program of single calculating and prior art can achieve, and will not be described here.
In the present invention, the opportunity of positive engagement and anti-phase engagement by the laboratory facilities and calculating means of prior art is
Can achieve to set, will not be described here.
Finally illustrate, above example is only unrestricted in order to technical scheme to be described, although with reference to compared with
Good embodiment has been described in detail to the present invention, 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, and without deviating from the objective and scope of technical solution of the present invention, which all should be covered at this
In the middle of the right of invention.
Claims (10)
1. a kind of buffer unit of elevator composited damping force, it is characterised in that：Including Buffer Unit and magnetorheological damping component；
The Buffer Unit is fixedly installed on elevator bottom to be used for preventing elevator car rigid touch bottom；
The magnetorheological damping component includes magnetorheological damping body and control system；
The control system includes：
Solenoid, for providing electromagnetic field for magnetorheological damping body；
Power subsystem, for providing power supply for solenoid；
Descent parameters detector unit, for detecting the descent parameters of elevator car；
CPU, for receiving the data-signal of descent parameters detector unit and being sent to power subsystem according to the signal
Power command is provided；
It is magnetic in the piston rod that magnetorheological damping body is included cylinder body, damping piston and is fixedly connected with damping piston, the cylinder body
Rheology liquid, the solenoid are located at around cylinder body, are provided with damping hole on damping piston, and the piston rod is electric in Buffer Unit
Engage with Buffer Unit forward direction in elevator car body compression process, positive damping, and piston rod is formed to Buffer Unit by damping piston
To between rebound stroke after causing Buffer Unit to be compressed by elevator car with Buffer Unit reverse engagement, by damping piston to buffering
Component forms reduction damping.
2. the buffer unit of elevator composited damping force according to claim 1, it is characterised in that：The Buffer Unit includes
Buffer spring and the buffer board being supported at the top of buffer spring on the basis of being arranged at, the buffer board is just to elevator car bottom
Portion；The piston rod buffer spring by buffer board by elevator car compression process in engages with buffer board forward direction, by damping
Piston forms damping to buffer board.
3. the buffer unit of elevator composited damping force according to claim 2, it is characterised in that：Relative with piston rod in institute
State buffer board and be provided with fairlead and the reduction damping force fastener for engaging with piston rod, the fairlead is axially can leading
To mode be coated at piston rod, the reduction damping force fastener buffer spring by elevator car be compressed to rebound stroke it
Between be close to cylinder base with piston rod reverse engagement, the damping piston normality.
4. the buffer unit of elevator composited damping force according to claim 3, it is characterised in that：Reduction damping force fastener
Be by can along piston rod radially wobble in the way of be articulated with engagement bar on buffer board, engage bar lower end and be provided with connecing of extending internally
Close boss, be provided with the piston rod for engagement bar descending after with engage boss formation hasp engagement groove；Described lead
The groove that at least can be used for radial through engagement boss is provided with to putting.
5. the buffer unit of elevator composited damping force according to claim 4, it is characterised in that：Engagement bar is hung down by gravity
Straight downward, engagement boss extends inward into fairlead and extended distance makes engagement boss inner end can extend into engagement groove；Institute
Stating is used on fairlead by the groove for engaging boss in the tangential to engaging boss shape into spacing of fairlead.
6. the buffer unit of elevator composited damping force according to claim 4, it is characterised in that：The engagement boss lower end
Face is the acclivitous inclined-plane of ecto-entad, and the piston rod top is frustum structure；The engagement groove is around piston rod
Cannelure, and described engagement groove lower edge be less than buffer spring limited compression when engage boss axial location.
7. the buffer unit of elevator composited damping force according to claim 3, it is characterised in that：The fairlead passes through one
Pedestal is integrally formed to be arranged at buffer board, and the pedestal has the contact jaw engaged in fairlead with piston rod tip contact
Face.
8. the buffer unit of elevator composited damping force according to claim 7, it is characterised in that：The buffer board upper table
Face, piston rod upper surface and pedestal lower surface are respectively provided with cushion.
9. the buffer unit of elevator composited damping force according to claim 1, it is characterised in that：The descent parameters detection
Unit includes：
Falling speed detection sensor, for detecting elevator car falling speed parameter；
Elevator car weight parameter sensor, for detecting the real-time load weight parameter of elevator car；
10. the buffer unit of elevator composited damping force according to claim 9, it is characterised in that：
Whereabouts contact detection sensor, produces to Buffer Unit when elevator car is fallen and contacted with Buffer Unit for detecting
Raw pressure parameter.
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| CN201410776411.XA CN104477731B (en) | 2014-12-15 | 2014-12-15 | The buffer unit of elevator composited damping force |
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| CN201410776411.XA CN104477731B (en) | 2014-12-15 | 2014-12-15 | The buffer unit of elevator composited damping force |
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| CN106406079A (en) * | 2016-11-21 | 2017-02-15 | 清华大学 | Vehicle, magnetorheological fluid type vehicle shock absorbing seat control device and method thereof |
| CN109573778B (en) * | 2019-01-02 | 2023-12-22 | 广州广日电梯工业有限公司 | Magneto-rheological elevator buffer and control method |
| CN110980469B (en) * | 2019-12-27 | 2021-04-23 | 盐城师范学院 | Elevator traction vibration reduction system, device and method based on dynamic model |
| CN111322345B (en) * | 2020-02-05 | 2021-07-30 | 山东科技大学 | Impact resistance device and working method thereof |
| CN115108432A (en) * | 2022-08-11 | 2022-09-27 | 罗长华 | Elevator buffer |
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| JPH08247203A (en) * | 1995-03-11 | 1996-09-24 | Nobuhito Kawachi | Electroviscous fluid buffer |
| JP4301837B2 (en) * | 2002-05-21 | 2009-07-22 | 三菱電機株式会社 | Elevator shock absorber |
| JP2005054847A (en) * | 2003-08-01 | 2005-03-03 | Univ Kanagawa | Viscous variable fluid shock absorber |
| JP2005172128A (en) * | 2003-12-11 | 2005-06-30 | Mitsubishi Electric Corp | Oil-filled shock absorber |
| CN203513023U (en) * | 2013-09-07 | 2014-04-02 | 成都市佳晋建筑材料有限公司 | Elevator shock pad |
| CN204324641U (en) * | 2014-12-15 | 2015-05-13 | 重庆和航科技股份有限公司 | The elevator cushion system of forward and reverse damping |
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2014
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Effective date of registration: 20200924 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. |