CN104477731A - Buffer device for composite damping force of elevator - Google Patents
Buffer device for composite damping force of elevator Download PDFInfo
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- CN104477731A CN104477731A CN201410776411.XA CN201410776411A CN104477731A CN 104477731 A CN104477731 A CN 104477731A CN 201410776411 A CN201410776411 A CN 201410776411A CN 104477731 A CN104477731 A CN 104477731A
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- elevator car
- buffer unit
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- 238000013016 damping Methods 0.000 title claims abstract description 99
- 239000002131 composite material Substances 0.000 title abstract 2
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- 239000007788 liquid Substances 0.000 claims description 17
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 7
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a buffer device for a composite damping force of an elevator. The buffer device comprises a buffer component and a magneto-rheological damping component which can be connected with the buffer component in a forward direction and a reverse direction and forms damping. By combining variable forward damping intervention at the later buffer stage of abnormal falling of an elevator car with elastic buffer at the earlier stage, the buffer device disclosed by the invention is suitable for high-speed elevators, and has an effect of being dynamically applied at any time, so that the comfortability and the reliability before the elevator car touches the bottom and at the moment when the elevator car touches the buffer component are effectively improved; meanwhile, before the buffer when the car touches the bottom is finished, the connection of the damping component is restored to play a role in limiting the speed of resilience, and steady resilience is ensured; parameters of magneto-rheological fluid are adjusted according to falling parameters of the elevator car, and if the falling speed is high, a bigger resilience force can be caused, and the power-on current of the magneto-rheological fluid is intensified so as to increase the restored damping force; meanwhile, during damping restoration, the viscosity of the magneto-rheological fluid can also be adjusted so as to ensure the resilience to be steady and slow.
Description
Technical field
The present invention relates to a kind of special safety equipment system, special type relates to the safety system that a kind of cage type elevator touches the end.
Background technology
Cage type elevator is a kind of vehicle solving vertical transport, is closely connected with daily life; Existing cage type elevator, primarily of formations such as towing machine, control housing, car, guide rails, realizes uplink and downlink comparatively rapidly; In order to realize uplink and downlink and install relevant device, use the place meeting type of construction elevators hoistway of cage type elevator at building or other, to realize trouble-free operation.
The uplink and downlink of cage type elevator are generally realized by mechanical force traction, structure is comparatively complicated, due to environment for use, cycle and the problem such as ageing equipment, quality, lift car all can be caused to drop without when constraint or finite constraint, there is comparatively serious safety problem.In prior art, cause serious danger in order to solve by (directly dropping to shaft bottom) at the bottom of car rigid touch to occupant, shock absorber is set at shaft bottom; Be hydraulic cushion for express elevator shock absorber, slower elevators is then generally adopted to the structure of recoil spring, and so consider the mainly elasticity modulus of spring, the relation between stroke and car, if elastic force is excessive, then larger bounce can be carried out, cause larger injury, therefore, express elevator then can not adopt the spring that elasticity modulus is larger; And in fact, for express elevator, due to speed, and adding Action of Gravity Field, the buffering of hydraulic cushion has comparatively slow, still can produce comparatively serious rigid collision, thus cause the accident; Simultaneously, for fair speed and the larger elevator of load-carrying, use the larger spring of elasticity modulus then to make spring load excessive, and not there is the characteristic adjusted at any time, comformability could not be had according to the whereabouts of elevator car, therefore cannot cushion according to situation about falling.
Therefore, need to improve existing elevator cushion structure, be suitable for all cage type elevators to use, in buffering course when the improper tactile end occurs elevator car, dumping force comformability goes forward one by one increase, and the dumping force later stage increased participates in, realize the ride comfort of downstream buffer and there is enough dumping forces gone forward one by one, therefore the elasticity modulus of cushion stroke and reduction spring can compared with prior art be increased, the safety performance of hoisting elevator, and whole process can ensure mild, compression buffering gradually and return, avoid because the elasticity modulus of recoil spring is excessive or compression stroke is long and secondary that is that cause the rebounds safety misadventure caused.
Summary of the invention
In view of this, object of the present invention provides a kind of shock absorber of elevator composited damping force, be suitable for all cage type elevators to use, in buffering course when the improper tactile end occurs elevator car, dumping force comformability goes forward one by one increase, and the dumping force later stage increased participates in, realize the ride comfort of downstream buffer and there is enough dumping forces gone forward one by one, therefore the elasticity modulus of cushion stroke and reduction spring can compared with prior art be increased, the safety performance of hoisting elevator, and whole process can ensure mild, compression buffering gradually and return, avoid because the elasticity modulus of recoil spring is excessive or compression stroke is long and secondary that is that cause the rebounds safety misadventure caused.
The shock absorber of elevator composited damping force of the present invention, comprises Buffer Unit and magnetorheological damping assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit, for providing power supply for magnet coil;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command.
The piston rod that magnetorheological damping body comprises cylinder body, damping piston and is fixedly connected with damping piston, be magnetic flow liquid in described cylinder body, described magnet coil is positioned at around cylinder body, damping piston has damping hole, described piston rod engages with Buffer Unit forward in Buffer Unit is by elevator car compression process, by damping piston, forward damping is formed to Buffer Unit, and piston rod and Buffer Unit reverse engagement Buffer Unit is compressed by elevator car after between rebound stroke, by damping piston, reduction damping is formed to Buffer Unit.
Further, described Buffer Unit comprises the recoil spring be arranged on basis and the dash plate being supported in recoil spring top, and described dash plate is just to bottom elevator car; Described piston rod recoil spring by dash plate by elevator car compression process in engage with dash plate forward, by damping piston, damping is formed to dash plate;
Further, relatively with piston rod on described dash plate, be provided with orienting sleeve and the reduction dumping force fastener for engaging with piston rod, described orienting sleeve is axially directed mode can be coated at piston rod, described reduction dumping force fastener recoil spring by elevator car be compressed between rebound stroke with piston rod reverse engagement, described piston normality is close to cylinder base;
Further, reduction dumping force fastener is the engaging lever be articulated with in the mode that can radially wobble along piston rod on dash plate, engaging lever lower end is provided with the joint boss extended internally, described piston rod has for after engaging lever is descending with the engagement groove engaging boss and formed hasp; Described orienting sleeve is provided with the groove that at least can be used for radial through engaging boss;
Further, by gravity vertically downward, joint boss extends inward into orienting sleeve and extended distance enables joint boss inner end stretch into engagement groove for engaging lever; Described orienting sleeve becomes spacing in the tangential of orienting sleeve to joint boss shape for the groove by engaging boss.
Further, described joint boss lower surface is the acclivitous inclined-plane of ecto-entad, and described piston rod top is frustum structure;
Further, described engagement groove is the circular groove around piston rod;
Further, the lower edge of described engagement groove is lower than the axial location engaging boss during recoil spring limited compression;
Further, described orienting sleeve is arranged at dash plate by a pedestal is integrally formed, and described pedestal has the contact end face being positioned at orienting sleeve and engaging with piston rod tip contact;
Further, described dash plate upper surface, piston rod upper surface and pedestal lower surface all arrange cushion layer;
Further, described descent parameters detecting unit comprises:
Falling speed detecting 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 detecting sensor, for detecting the pressure parameter produced Buffer Unit when elevator car falls and contacts with Buffer Unit.
Beneficial effect of the present invention: the shock absorber of elevator composited damping force of the present invention, adopt the structure that Buffer Unit combines with magnetorheological damping assembly, magnetorheological damping assembly comprises two kinds of functions, and magnetorheological damping assembly gets involved forward damping in Buffer Unit compression process namely, form the forward buffer damping mode of going forward one by one, and according to the parameter of parameter adjustment magnetic flow liquid that elevator car falls, then magnetic flow liquid electrical current as large in falling speed strengthens retrogradation, to increase dumping force, and touch dumping force in bottom buffering process at elevator car to increase gradually, and increase process is mild rapidly compared with common spring, final stage forms forward buffer damping, realize the ride comfort of downstream buffer and there is enough variable dumping forces, therefore the damping process of cushion stroke and laddering gradual change can compared with prior art be increased, the spring that elasticity modulus is less can be adopted in scheme, the adaptive damping in later stage gets involved the elastic buffer combining early stage, be applicable to express elevator use, there is the effect of dynamic application at any time, before making elevator car touch the end and the traveling comfort of moment of contact Buffer Unit and reliability effectively improve, the safety performance of hoisting elevator,
Simultaneously, touch bottom buffering at car and terminate the effect that pre reduction damper assembly engages the speed playing restriction resilience, ensure mild resilience, and according to the parameter of parameter adjustment magnetic flow liquid that elevator car falls, as falling speed greatly then can cause larger screen resilience, then magnetic flow liquid electrical current strengthens retrogradation, to increase reduction dumping force, meanwhile, in reduction damping process, go back adjustable magnetic flow liquid viscosity, ensure resilience Erlotinib; The present invention utilizes Buffer Unit to realize downstream buffer, due to the existence of magnetorheological damping assembly, also can increase cushion stroke and the elasticity modulus of Buffer Unit, the realization that thus can more relax cushions, utilize reduction damping to avoid quick resilience after buffering, ensure final buffering effect; Therefore, this structure is suitable for all cage type elevators and uses, when elevator accident touches the end, compression buffering mild, gradually and return can be ensured, avoid because the elasticity modulus of recoil spring is excessive or compression stroke is long and secondary that is that cause the rebounds safety misadventure caused.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, as shown in the figure: the shock absorber of the elevator composited damping force of the present embodiment, comprises Buffer Unit and magnetorheological damping assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil 19, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit 16, for providing power supply for magnet coil;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit 17, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command;
Magnetorheological damping body comprises cylinder body 9, damping piston 10 and the piston rod 12 be fixedly connected with damping piston 10, be magnetic flow liquid in described cylinder body 9, described magnet coil 19 is positioned at around cylinder body 9, damping piston 10 has damping hole, described piston rod 12 engages with Buffer Unit forward in Buffer Unit is by elevator car compression process, by damping piston, forward damping is formed to Buffer Unit, and while formation forward damping or before, to between rebound stroke after piston rod 10 and Buffer Unit reverse engagement make Buffer Unit be compressed by elevator car 1, reduction damping is formed by damping piston 10 pairs of Buffer Units,
In this process, as shown in the figure, damping piston 10 has damping hole (setting size and number as required), magnetic flow liquid is full of in cylinder body, when piston moves under external force, magnetic flow liquid passes through by means of only damping hole, and viscosity determines dumping force and forms damping; As shown in the figure, cylinder body 9 is embedded among basis 8, magnet coil 18 is positioned at basis and is isolated by division board with basis 8, cylinder body 9 top is sealed by cylinder cap 11, cylinder cap 11 is sealedly attached to cylinder body 9 by the holding-down bolt 7 be embedded on basis 8, cylinder cap 11 is integrally formed the axle sleeve 12 for leading to piston rod; Adopt the structure that Buffer Unit combines with magnetorheological damping assembly, touch magnetorheological damping assembly forward in bottom buffering process at elevator car and engage the effect playing laddering forward buffer damping, this structure can increase the cushion stroke of Buffer Unit and reduce the elastic coefficient, the realization that can more relax whole process buffering; This structure is suitable for all cage type elevators and uses, and when elevator accident touches the end, can ensure that compression that is mild, that go forward one by one gradually cushions.
For magnetic flow liquid, elevator box 1 can have different speed and inertia according to differing heights and load-carrying in dropping process, thus for shock absorber, needs to provide different cushion effects and forward dumping force; In the present invention, the gravity utilizing descent parameters detecting unit to detect, speed and the pressure parameter that shock absorber is produced, the energising intensity of magnet coil 18 is adjusted by central processing unit 15, to adjust magnetic-field intensity, thus reach the object of adjustment magnetic flow liquid machinery, physical property, to change forward dumping force; When gravity, speed and to shock absorber produce pressure parameter bigger than normal time, in order to prevent declining and avoid at the bottom of rigid touch fast, then increase energising intensity, magnetic flow liquid entirety retrogradation, dumping force increase; Vice versa; Central processing unit according to great gravity, speed and to shock absorber produce pressure parameter adopt much energising intensity then belong to existing be by experiment confirmable control method, do not repeat them here.
Meanwhile, before forming forward damping or simultaneously, between rebound stroke after piston rod 10 and Buffer Unit reverse engagement make Buffer Unit be compressed by elevator car 1, is formed by damping piston 10 pairs of Buffer Units and reduce damping (reverse damping); Reduction damping refers to being formed damping by during reduction distortion after compressing; The mode that piston rod 12 engages with the Buffer Unit mode that mechanical automatic locking button, electromagnetism can be adopted to engage etc., certainly, electromagnetism engages to be needed gather data and automatically control, and does not repeat them here;
Forward engages to refer in dropping process and engages downwards, forms dumping force upwards, prevents from hurtling down; Otherwise, be then reverse engagement, form downward dumping force; The structure of cylinder body and damping piston and piston rod composition has bidirectional damper effect, and to realize bidirectional damper be then make piston be positioned in the middle part of cylinder body, belongs to the structure of prior art, does not repeat them here.
In the present embodiment, described Buffer Unit comprises the recoil spring 3 be arranged on basis and the dash plate 15 being supported in recoil spring top, and described dash plate 15 is just to bottom elevator car; ; Described piston rod 12 recoil spring 3 by dash plate 15 by elevator car 1 compression process in engage with dash plate 15 forward, form damping by damping piston 10 pairs of dash plates; Basis 8 refers to the basis of the installation into Buffer Unit; As shown in the figure, basis being also provided with the spring perch 6 for installing recoil spring 3, can be used for maximum compression stroke and the limited compression position of regulating spring 3; The quantity of recoil spring 3 can be installed as required, is generally more than three along the circumferential direction uniform settings; Dash plate 15 can adopt guidepost to install with recoil spring 3 top to coordinate and weld, and avoids departing from when buffering or bounce-back.
In the present embodiment, described orienting sleeve 4 is arranged at dash plate 15 by a pedestal 22 is integrally formed, and described pedestal 22 has the contact end face being positioned at orienting sleeve 4 and engaging with piston rod 12 tip contact; ; As shown in the figure, structure top base 22 is positioned at orienting sleeve 4, adopts base construction can set base height as required, thus adjustment engages stroke (contact end face and piston rod setting spacing under normal conditions), and increases the load ability after engaging.
In the present embodiment, described dash plate 15 upper surface, piston rod 12 upper surface and pedestal 22 lower surface all arrange cushion layer; This cushion layer can prevent direct rigid contact, thus ensures safety and compliance.
In the present embodiment, described recoil spring 3 is variable-pitch spring, touch dumping force in bottom buffering process at elevator car 1 to increase gradually, and increase process is mild rapidly compared with common spring, realize the ride comfort of downstream buffer and there is enough dumping forces, therefore the elasticity modulus of cushion stroke and gradual change can compared with prior art be increased, the technical scheme of this critical performance parameters of automatic adjustment spring power can be formed, be applicable to express elevator to use, there is the effect of dynamic application at any time, in conjunction with the damping structure that go forward one by one relative to recoil spring, before making elevator car 1 touch the end and the traveling comfort of moment of contact Buffer Unit and reliability effectively improve, the safety performance of hoisting elevator.
In the present embodiment, the pitch of described recoil spring 3 becomes large from bottom to top gradually; The moment that can contact at elevator car 1 can submissive buffering at once, and increases elasticity modulus gradually.
In the present embodiment, relatively with piston rod 12 on described dash plate 15, be provided with orienting sleeve 4 and the reduction dumping force fastener 14 for engaging with piston rod 12, described orienting sleeve 4 is axially directed mode can be coated at piston rod 12, described reduction dumping force fastener recoil spring 3 by elevator car 1 be compressed between rebound stroke with piston rod 12 reverse engagement, described piston 10 normality is close to bottom cylinder body 9; This structure can ensure that dash plate 15 is stablized descending at recoil spring 3 after being compressed, and ensures that reduction dumping force fastener 14 aligns joint with piston rod 12.
In the present embodiment, reduction dumping force fastener 14 is the engaging lever be articulated with in the mode that can radially wobble along piston rod 12 on dash plate 15, engaging lever lower end is provided with the joint boss 13 extended internally, described piston rod 12 has for after engaging lever is descending with the engagement groove 5 engaging boss 13 and formed hasp; Described orienting sleeve 4 is provided with the groove 2 that at least can be used for radial through engaging boss 13; Overcome the elastic force Compress Spring of recoil spring 3 under the effect that dash plate falls at lift car, engage boss 13 when lift car 1 drops to desired location and embed engagement groove 5 and formed oppositely, now, form forward simultaneously and engage or also do not formed forward joint; The position that piston rod 12 contacts with joint boss 13 has inclination, to produce radially outer component, sets back and make joint boss embed engagement groove after making engaging lever outwards at joint boss place; This setpoint distance, generally close to the limited compression position of recoil spring, to give full play to the buffering of spring, extends compression stroke.
In the present embodiment, by gravity vertically downward, joint boss 13 extends inward into orienting sleeve and extended distance enables joint boss 13 inner end stretch into engagement groove 5 for engaging lever; Described orienting sleeve 4 becomes spacing, the tangential direction that tangentially refer to along the circumferential direction of orienting sleeve 4 in the tangential of orienting sleeve 4 to joint boss shape for the groove by engaging boss; Structure is simple and easy for installation, and ensures to engage the Engage and disengage between boss 13 and engagement groove 5, avoids deviation occurs, particularly reduction damping process upon engagement, prevents from throwing off thus avoiding losing dumping force.
In the present embodiment, described joint boss 13 lower surface is the acclivitous inclined-plane of ecto-entad, and described piston rod 12 top is frustum structure; The structure that frustum structure and inclined-plane combine can ensure to produce radially outer component in the moment contacted, and avoids disturbing, thus makes engaging process smooth and easy.
In the present embodiment, described engagement groove 5 is the circular groove around piston rod; Processing simply and easily engage, is avoided because the engage position that causes of the rotation of piston rod 12 is not corresponding.
In the present embodiment, the lower edge of described engagement groove 5 is lower than the axial location engaging boss 13 during recoil spring 3 limited compression, avoid engaging boss 13 and exceed engagement groove 5 in descending process, prevent the rigid contact that there is no need, thus avoid the damage of generation part.
In the present embodiment, described descent parameters detecting unit comprises:
Falling speed detecting sensor 18, for detecting elevator car falling speed parameter; Be arranged at elevator, the existing speed sensor such as Hall element can be adopted to test the speed, do not repeat them here;
Elevator box weight parameter sensor 21, for detecting the real-time load weight parameter of elevator box.Can be arranged at bottom elevator car or other load parts;
The present embodiment also comprises whereabouts contact detecting sensor 19, for detecting when elevator car 1 falls and contacts with Buffer Unit the pressure parameter that Buffer Unit produces; Whereabouts contact detecting sensor 17 be arranged at elevator box improper fall time contact parts, the dash plate upper surface of such as 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 adjusting electric current is needed according to this, and this adjustment can be carried out in elevator dropping process, real-time inertial parameter is obtained according to falling speed, overall weight, thus adjust the viscosity of magnetic flow liquid in real time, and pointed formation forward damping; During actual use, elevator car falls and has effect promptly and accurately to the pressure parameter of Buffer Unit generation when contact (forward joint) with Buffer Unit, actual impulsive force can be obtained accurately, thus the inertial parameter of above-mentioned two gain of parameters is reached to the object of correction, should be as the criterion with the large person of force of inertia of pressure parameter and acquisition; Owing to having real-time detection, the increase making forward dumping force pointed in dropping process or adjustment, be also unlikely to change and the impulsive force with sudden change after pressure parameter correction; The inertial parameter of above-mentioned acquisition according to inertial parameter adjustment magnetic flow liquid viscosity, by simply to calculate and the program of prior art can realize, does not repeat them here.
Simultaneously, according to the stretch parameter after elevator car falling speed parameter and real-time load weight parameter and forward damping, similar with forward dumping force, central processing unit obtains inertial data in advance according to above-mentioned parameter and adjusts the size of electric current in advance, and this adjustment can be carried out in elevator dropping process, real-time inertial parameter is obtained according to falling speed, overall weight, thus obtain the maximum screen resilience scope likely formed, the viscosity of real-time adjustment magnetic flow liquid, and pointed formation reduction damping; Certainly, pressure parameter has effect promptly and accurately, can obtain actual impulsive force accurately; Owing to having real-time detection, the increase making reduction dumping force pointed in the springback process after buffer limit or adjustment; Equally, the acquisition of reduction dumping force is the inertial parameter that obtains and equally according to inertial parameter adjustment magnetic flow liquid viscosity, by simply to calculate and the program of prior art can realize, does not repeat them here.
In the present invention, forward engages and the opportunity of anti-phase joint can realize setting by the laboratory facilities of prior art and calculating means, does not repeat them here.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a shock absorber for elevator composited damping force, is characterized in that: comprise Buffer Unit and magnetorheological damping assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological damping assembly comprises magnetorheological damping body and control system;
Described control system comprises:
Magnet coil, for providing electromagnetic field for magnetorheological damping body;
Power subsystem unit, for providing power supply for magnet coil;
Descent parameters detecting unit, for detecting the descent parameters of elevator car;
Central processing unit, for receiving the data-signal of descent parameters detecting unit and sending to power subsystem unit according to this signal and provide power command;
The piston rod that magnetorheological damping body comprises cylinder body, damping piston and is fixedly connected with damping piston, be magnetic flow liquid in described cylinder body, described magnet coil is positioned at around cylinder body, damping piston has damping hole, described piston rod engages with Buffer Unit forward in Buffer Unit is by elevator car compression process, by damping piston, forward damping is formed to Buffer Unit, and piston rod and Buffer Unit reverse engagement Buffer Unit is compressed by elevator car after between rebound stroke, by damping piston, reduction damping is formed to Buffer Unit.
2. the shock absorber of elevator composited damping force according to claim 1, is characterized in that: described Buffer Unit comprises the recoil spring be arranged on basis and the dash plate being supported in recoil spring top, and described dash plate is just to bottom elevator car; Described piston rod recoil spring by dash plate by elevator car compression process in engage with dash plate forward, by damping piston, damping is formed to dash plate.
3. the shock absorber of elevator composited damping force according to claim 2, it is characterized in that: relatively with piston rod on described dash plate, be provided with orienting sleeve and the reduction dumping force fastener for engaging with piston rod, described orienting sleeve is axially directed mode can be coated at piston rod, described reduction dumping force fastener recoil spring by elevator car be compressed between rebound stroke with piston rod reverse engagement, described piston normality is close to cylinder base.
4. the shock absorber of elevator composited damping force according to claim 3, it is characterized in that: reduction dumping force fastener is the engaging lever be articulated with in the mode that can radially wobble along piston rod on dash plate, engaging lever lower end is provided with the joint boss extended internally, described piston rod has for after engaging lever is descending with the engagement groove engaging boss and formed hasp; Described orienting sleeve is provided with the groove that at least can be used for radial through engaging boss.
5. the shock absorber of elevator composited damping force according to claim 4, is characterized in that: by gravity vertically downward, joint boss extends inward into orienting sleeve and extended distance enables joint boss inner end stretch into engagement groove for engaging lever; Described orienting sleeve becomes spacing in the tangential of orienting sleeve to joint boss shape for the groove by engaging boss.
6. the shock absorber of elevator composited damping force according to claim 4, is characterized in that: described joint boss lower surface is the acclivitous inclined-plane of ecto-entad, and described piston rod top is frustum structure; Described engagement groove is the circular groove around piston rod, and the lower edge of described engagement groove is lower than the axial location engaging boss during recoil spring limited compression.
7. the shock absorber of elevator composited damping force according to claim 3, is characterized in that: described orienting sleeve is arranged at dash plate by a pedestal is integrally formed, and described pedestal has the contact end face being positioned at orienting sleeve and engaging with piston rod tip contact.
8. the shock absorber of elevator composited damping force according to claim 4, is characterized in that: described dash plate upper surface, piston rod upper surface and pedestal lower surface all arrange cushion layer.
9. the shock absorber of elevator composited damping force according to claim 1, is characterized in that: described descent parameters detecting unit comprises:
Falling speed detecting sensor, for detecting elevator car falling speed parameter;
Elevator box weight parameter sensor, for detecting the real-time load weight parameter of elevator box.
10. the shock absorber of elevator composited damping force according to claim 9, is characterized in that:
Whereabouts contact detecting sensor, for detecting the pressure parameter produced Buffer Unit when elevator car falls and contacts with Buffer Unit.
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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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109573778A (en) * | 2019-01-02 | 2019-04-05 | 广州广日电梯工业有限公司 | A kind of magnetorheological buffer of elevator and control method |
| CN110980469A (en) * | 2019-12-27 | 2020-04-10 | 盐城师范学院 | A kind of elevator traction vibration damping system, device and method based on dynamic model |
| WO2021155645A1 (en) * | 2020-02-05 | 2021-08-12 | 山东科技大学 | Novel anti-impact device and working method thereof |
| CN115108432A (en) * | 2022-08-11 | 2022-09-27 | 罗长华 | Elevator buffer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109573778A (en) * | 2019-01-02 | 2019-04-05 | 广州广日电梯工业有限公司 | A kind of magnetorheological buffer of elevator and control method |
| 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 |
| CN110980469A (en) * | 2019-12-27 | 2020-04-10 | 盐城师范学院 | A kind of elevator traction vibration damping system, device and method based on dynamic model |
| 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 |
| WO2021155645A1 (en) * | 2020-02-05 | 2021-08-12 | 山东科技大学 | Novel anti-impact device and working method thereof |
| US11535284B2 (en) | 2020-02-05 | 2022-12-27 | Shandong University Of Science And Technology | Anti-impact device and working method thereof |
| AU2020427613B2 (en) * | 2020-02-05 | 2023-05-18 | Shandong University Of Science And Technology | Novel anti-impact device and working method thereof |
| GB2617644A (en) * | 2020-02-05 | 2023-10-18 | Univ Shandong Science & Tech | Novel anti-impact device and working method thereof |
| GB2617644B (en) * | 2020-02-05 | 2024-10-23 | Univ Shandong Science & Tech | Novel anti-impact device and working method thereof |
| CN115108432A (en) * | 2022-08-11 | 2022-09-27 | 罗长华 | Elevator buffer |
| CN115108432B (en) * | 2022-08-11 | 2024-05-28 | 巨灵(南京)智能科技有限公司 | Elevator buffer |
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