CN104495567A - Safe elevator system for reducing damping force in self adaptive way - Google Patents
Safe elevator system for reducing damping force in self adaptive way Download PDFInfo
- Publication number
- CN104495567A CN104495567A CN201410778103.0A CN201410778103A CN104495567A CN 104495567 A CN104495567 A CN 104495567A CN 201410778103 A CN201410778103 A CN 201410778103A CN 104495567 A CN104495567 A CN 104495567A
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- Prior art keywords
- elevator
- damping
- piston rod
- magnetorheological
- dumping force
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a safe elevator system for reducing damping force in a self adaptive way. The safe elevator system comprises an elevator car body and a buffer assembly, wherein the buffer assembly comprises a buffer assembly and a magnetorheological reducing damping assembly, the buffer assembly is fixedly arranged at the bottom of an elevator liftway and is used for preventing the rigid bottom contacting of the elevator lift car body, the magnetorheological reducing damping assembly comprises a magnetorheological damping body and a control system, and the magnetorheological damping body forms reducing damping on the buffer assembly. The safe elevator system has the advantages that before the lift car bottom contacting buffer completion, the reducing damping assembly is engaged to achieve the rebounding speed limiting effect, the gentle rebounding is ensured, parameters of magnetorheological fluid are regulated according to the elevator lift car falling parameters, if the falling speed is high, greater rebounding force can be caused, the electrification current of the magnetorheological fluid is increased and thickened, the reducing damping force is increased, meanwhile, the viscosity of the magnetorheological fluid can be regulated in the damping force reducing process, and the rebounding comfort degree is ensured; the safety accidents caused by secondary rebounding due to too long compression stroke or too great elastic coefficients of the buffer spring are avoided.
Description
Technical field
The present invention relates to a kind of special equipment, special type relates to a kind of cage type elevator for preventing at the bottom of rigid touch.
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.
Therefore, need to improve existing elevator cushion structure, be suitable for all cage type elevators to use, 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.
Summary of the invention
In view of this, the safe elevator system that object of the present invention provides a kind of self adaptation to reduce dumping force, be suitable for all cage type elevators to use, 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.
The safe elevator system of self adaptation reduction dumping force of the present invention, comprise elevator car and buffering assembly, described buffering assembly comprises Buffer Unit and magnetorheological reduction damper assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological reduction damper 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 after Buffer Unit is compressed by elevator car between rebound stroke, forms reduction damping by damping piston 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;
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 to be compressed between rebound stroke by elevator car at recoil spring and to engage with piston rod, and 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 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;
Further, falling speed detecting sensor is Hall subassembly, comprises the Hall element be arranged in elevator and the magnet steel being arranged at elevator car;
Elevator box weight parameter sensor setting is bottom elevator car.
Beneficial effect of the present invention: the safe elevator system of self adaptation reduction dumping force of the present invention, adopt the structure that buffering spring component combines with magnetorheological reduction damper assembly, 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, simultaneously, adjustable magnetic flow liquid viscosity is gone back in reduction damping process, ensure resilience Erlotinib, the present invention utilizes Buffer Unit to realize downstream buffer, due to the existence of magnetorheological reduction damper 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, and as shown in the figure: the safe elevator system of the self adaptation reduction dumping force of the present embodiment, comprise elevator car and buffering assembly, described buffering assembly comprises Buffer Unit and magnetorheological reduction damper assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological reduction damper 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;
The piston rod 12 that magnetorheological damping body comprises cylinder body 9, damping piston 10 and is fixedly connected with damping piston 10, described piston rod 12 engages with Buffer Unit after Buffer Unit is compressed by elevator car 1 between rebound stroke, be magnetic flow liquid in described cylinder body, described magnet coil is positioned at around cylinder body, damping piston has damping hole, form reduction damping by damping piston 10 pairs of Buffer Units, 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; The setting engaged can set according to the stroke of Buffer Unit (as recoil spring), such as when the compression stroke limit of Buffer Unit or before, or the node that elevator car comparatively fast can be rebounded is equaled in the bounce of the elastic deformation of Buffer Unit, can be designed by the means of prior art and obtain a result, not repeat them here; As shown in the figure, damping piston 10 has damping hole (setting size and number as required), when piston moves under external force, damping liquid passes through by means of only damping hole, stroke damping; 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 reduction damper assembly, can increase the cushion stroke of Buffer Unit and increase the elastic coefficient as required, that can more relax realizes buffering and rebound; This structure is suitable for all cage type elevators and uses, and when elevator accident touches the end, can ensure mild compression buffering and mild bounce-back.
Elevator box 1 can have different speed and inertia according to differing heights and load-carrying in dropping process, thus for Buffer Unit, different impulsive forces can be obtained, certainly, upon compression, elevator car also just obtains different bounces, and in prior art, larger elasticity modulus spring can not be adopted to realize buffering, and the friendship caused in order to avoid larger buffering and rebound power is exactly dangerous greatly; In the present invention, the gravity utilizing descent parameters detecting unit to detect, speed and the pressure parameter produced shock absorber, certainly, also can detect the parameter needed for other; Adjusted the energising intensity of magnet coil 18 by central processing unit 15, to adjust magnetic-field intensity, thus reach the object of adjustment magnetic flow liquid machinery, physical property, to change reduction dumping force; When gravity, speed and to Buffer Unit produce pressure parameter bigger than normal time, owing to adopting the spring of larger elasticity modulus, prevent the high speed resilience that large elastic force causes preferably, then by increasing and adjusting energising intensity, the overall retrogradation of magnetic flow liquid, reduction dumping force increases, and forms the self adaptation reduction damping to large elastic force resilience, ensures the resilience of releiving; 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.
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; 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 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 to be compressed between rebound stroke by elevator car 1 at recoil spring 3 and to engage with piston rod 12, and 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; The elastic force Compress Spring of recoil spring 3 is overcome 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, the position that now piston rod 12 contacts with joint boss 13 has inclination, to produce radially outer component, set back at joint boss place after making engaging lever outwards and make joint boss embed engagement groove; 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, 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; During actual use, elevator car falls and has effect promptly and accurately to the pressure parameter of Buffer Unit generation when contact 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 reduction dumping force pointed in the springback process after buffer limit 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.
In the present embodiment, falling speed detecting sensor 18 is Hall subassembly, comprises the Hall element be arranged in elevator and the magnet steel being arranged at elevator car 1; It can certainly be existing any sensor that can record speed.
Elevator box weight parameter sensor 21 is arranged at bottom elevator car 1, can adopt the existing any detecting sensor can carrying out weighing.
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 safe elevator system for self adaptation reduction dumping force, is characterized in that: comprise elevator car and buffering assembly, described buffering assembly comprises Buffer Unit and magnetorheological reduction damper assembly;
Described Buffer Unit is fixedly installed on bottom elevator for preventing at the bottom of elevator car rigid touch;
Described magnetorheological reduction damper 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 after Buffer Unit is compressed by elevator car between rebound stroke, forms reduction damping by damping piston to Buffer Unit.
2. the safe elevator system of self adaptation reduction dumping 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.
3. the safe elevator system of self adaptation reduction dumping 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 to be compressed between rebound stroke by elevator car at recoil spring and to engage with piston rod, and described piston normality is close to cylinder base.
4. the safe elevator system of self adaptation reduction dumping 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 safe elevator system of self adaptation reduction dumping 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 safe elevator system of self adaptation reduction dumping 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.
7. the safe elevator system of self adaptation reduction dumping force according to claim 4, is characterized in that: described engagement groove is the circular groove around piston rod; The lower edge of described engagement groove is lower than the axial location engaging boss during recoil spring limited compression.
8. the safe elevator system of self adaptation reduction dumping 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.
9. the safe elevator system of self adaptation reduction dumping force according to claim 8, 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.
10. the safe elevator system of self adaptation reduction dumping force according to claim 9, is characterized in that: falling speed detecting sensor is Hall subassembly, comprises the Hall element be arranged in elevator and the magnet steel being arranged at elevator car;
Elevator box weight parameter sensor setting is bottom elevator car.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410778103.0A CN104495567B (en) | 2014-12-15 | 2014-12-15 | Self adaptation reduces the safe elevator system of damping force |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410778103.0A CN104495567B (en) | 2014-12-15 | 2014-12-15 | Self adaptation reduces the safe elevator system of damping force |
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| CN104495567A true CN104495567A (en) | 2015-04-08 |
| CN104495567B CN104495567B (en) | 2017-05-31 |
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| CN201410778103.0A Active CN104495567B (en) | 2014-12-15 | 2014-12-15 | Self adaptation reduces the safe elevator system of damping force |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106870628A (en) * | 2017-03-23 | 2017-06-20 | 江苏恒泽安装工程股份有限公司 | A kind of steel structure damps earthquake isolation device |
| CN111305387A (en) * | 2019-12-26 | 2020-06-19 | 中国建筑股份有限公司 | Compression-shear separation type variable-rigidity rubber support and manufacturing method thereof |
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| CN111305387A (en) * | 2019-12-26 | 2020-06-19 | 中国建筑股份有限公司 | Compression-shear separation type variable-rigidity rubber support and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN104495567B (en) | 2017-05-31 |
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