CN209522443U - A kind of magnetorheological buffer of elevator - Google Patents
A kind of magnetorheological buffer of elevator Download PDFInfo
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- CN209522443U CN209522443U CN201920002092.5U CN201920002092U CN209522443U CN 209522443 U CN209522443 U CN 209522443U CN 201920002092 U CN201920002092 U CN 201920002092U CN 209522443 U CN209522443 U CN 209522443U
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Abstract
The utility model discloses a kind of magnetorheological buffer of elevator, which includes cylinder body, upper end cover, piston rod, piston component, compressed spring, lower cover, switch block, power supply device, controller and sensor.Piston rod is four sections of multi-diameter shafts, first segment axis is slidably connected with upper end cover co-axial seal, second segment axis is threadedly coupled with piston component, and the central through hole co-axial seal between the magnetorheological fluid epicoele and compressed spring cavity of resorption of third section axis and cylinder body is slidably connected, and the 4th section of axis is threadedly coupled with spring press-cover.The lead wire through substrate for passing through piston rod respectively close to the magnet exciting coil built in switch and piston component built in piston rod part is connected to controller and power supply device.The utility model uses semi-active control strategy, change magnetic field strength by changing field coil current size, to change the viscosity and shear yield stress of magnetorheological fluid, additional damping force is generated, there is good adaptivity and comfort and stability can be improved.
Description
Technical field
The utility model relates to elevator related equipment technical fields, and in particular to a kind of magnetorheological buffer of elevator.
Background technique
In the prior art, common buffer of elevator has spring buffer and hydraulic bjuffer, both buffers all belong to
In passive control, it can not be changed according to the physical parameter of carriage falling process and active accommodation is made to buffer damping force.Also just
Because the damping force of spring buffer and hydraulic bjuffer can not adjust in real time, so that the carriage of corresponding friction speed must be using not
The buffer of same specification, bad adaptability.
Summary of the invention
Purpose of the utility model is to solve drawbacks described above in the prior art, provide a kind of magnetorheological elevator cushion
Device can adjust in real time damping force according to the variation of buffering course carriage physical parameter, to improve the comfort of buffering course and steady
It is qualitative, and it is applicable to the lift car of the different speeds of service.
The purpose of this utility model can be reached by adopting the following technical scheme that:
A kind of magnetorheological buffer of elevator, the buffer include cylinder body 4, the upper end cover 2 for being located at 4 top of cylinder body
Be located at 4 bottom of cylinder body lower cover 6, the piston rod 1 positioned at 4 internal cavities of cylinder body, piston component 3, compressed spring 5, be set to
Switch block 8, power supply device 10, controller 11 and sensor 12 inside upper end cover 2, wherein 4 top of cylinder body and upper
End cap 2 forms epicoele, and inside is equipped with piston component 3, while epicoele inside cavity fills magnetorheological fluid；4 lower part of cylinder body
Cavity of resorption is formed with lower cover 6, inside is equipped with compressed spring 5, and the piston rod 1 is divided into four sections of multi-diameter shafts from top to bottom, and first
Section multi-diameter shaft is slidably connected with 2 co-axial seal of upper end cover, and second segment multi-diameter shaft connect with 3 coaxial threaded of piston component and is placed in
Intracavitary, the central through hole co-axial seal between third section multi-diameter shaft and two chambers is slidably connected, the 4th section of axis and 7 screw thread of spring press-cover
Connection is placed in down intracavitary；
The sensor 12 is installed on lift car bottom and lead is connected to controller 11, and the sensor 12 is for connecing
The control instruction of admission controller 11 and then the quality and speed parameter of acquisition lift car simultaneously feed back to controller 11；
The top of the piston rod 1 is built-in with close to switch 9, and connection signal line passes through the central tap of piston rod 1
Hole is connected to controller 11 via the extraction of lower cover 6 of buffer bottom；
The controller 11 is built-in with memory module and computing module；
The controller 11 is connected with 10 conducting wire of power supply device, controls the power supply of power supply device 10；
The switch block 8 is connected with 11 conducting wire of controller；
The piston component 3 includes that coiling magnetizer 31, magnet exciting coil 32, resistance magnet ring 34 and a pair draw magnet ring 33, institute
The coiling magnetizer 31 stated is connected to the second segment multi-diameter shaft of piston rod 1 by coaxial threaded, and offsets with the shaft shoulder；Described encourages
Magnetic coil 32 is wound in the annular groove of 31 outer rim of coiling magnetizer, and passes through the laterally-graded hole of coiling magnetizer 31 and work
The central tap hole of stopper rod 1 is connected to power supply device 10 via the extraction of lower cover 6 of buffer bottom；Described a pair draws magnet ring
33 are sheathed on the outer rim of coiling magnetizer 31, this draws the annular gap composition magnetorheological fluid of cavity wall on magnet ring 33 and cylinder body 4
Damp channel；The cross section of the resistance magnet ring 34 is inverted T-shaped, is drawn between magnet ring 33 set on a pair.
Further, the 1 first segment multi-diameter shaft of piston rod offers arc groove, and is set to inside upper end cover 2
Switch block 8 cooperate, for detect piston rod 1 movement and trigger signal.
Further, the side of the upper end cover 2 offers laterally-graded hole, and laterally-graded hole includes coaxial macropore
And aperture, the aperture in laterally-graded hole and the central tap hole of upper end cover 2 penetrate through and connect, the macropore and upper end cover in laterally-graded hole
2 peripheral wall cutting planes perforation.
Further, the piston rod 1 is set respectively at two shaft shoulders of second segment multi-diameter shaft and the 4th section of multi-diameter shaft
There is Gewindefreistiche.
Further, the total magnetic flux that the magnet exciting coil 32 generates is shunted when flowing through 3 both ends of piston component,
Middle a part of magnetic flux directly flows to cavity wall on cylinder body 4 by damp channel in 3 end of piston component, and another part magnetic flux first flows
Draw magnet ring 33 to a pair, then draws magnet ring 33 via a pair and cavity wall on cylinder body 4 is flowed to by damp channel.
Further, the lower cover 6 is the three-level cylinder boss structure equipped with central through hole, top cylindrical groove
It is interior to be equipped with cushion 61.
Further, the switch block 8 includes push rod 81, reset spring 82, guideway 83, supporting plate 85 and row
Cheng Kaiguan 84, the guideway 83 are sealingly fastened on the peripheral wall cutting planes of upper end cover 2, in the guideway 83
Chamber is equipped with the push rod 81 for being slidingly sealed cooperation, and the push rod 81 passes through the laterally-graded hole of upper end cover 2 and is arranged with reset bullet
Spring 82, push rod 81 is equipped with push rod bulge loop 812 close to the side of upper end cover 2, and the side top is equipped with push rod roller 811, resets
Left side of 82 both ends of spring respectively with the right side of push rod bulge loop 812 and guideway 83 offsets, in the work of reset spring 82
Under, 812 left side of push rod bulge loop and the laterally-graded hole end surface of upper end cover 2 offset, and push rod roller 811 is in piston rod 1
In the arc groove of first segment multi-diameter shaft；The supporting plate 85 is fixed on 4 outer wall of cylinder body, and the travel switch 84 is fixed on
On supporting plate 85 and the Roller fork of travel switch 84 is made to be in the right side of push rod 81, the push rod 81 when piston rod 1 moves down
The Roller fork of triggering travel switch 84 acts travel switch 84, and 84 lead of travel switch is connected to controller 11.
Further, the diameter of the push rod 81 is less than the hole diameter in the laterally-graded hole of upper end cover 2, the reset
The outer diameter of spring 82 is less than the diameter macropores in the laterally-graded hole of upper end cover 2, and the outer diameter of the push rod bulge loop 812, which is greater than, resets bullet
The outer diameter of spring 82 and the diameter macropores for being less than the laterally-graded hole of upper end cover 2, the diameter of the push rod roller 811 are less than piston rod
The radius of curvature of the arc groove of 1 first segment multi-diameter shaft, the aperture of the push rod roller 811 and the laterally-graded hole of upper end cover 2
To be in rolling contact.
Further, the coiling magnetizer 31 uses strong permeability magnetic material with magnet ring 33 is drawn, and the cylinder body 4 is used and led
Magnetic material, the piston rod 1 and resistance magnet ring 34 use non-magnet material.
Further, the control method of the buffer, includes the following steps:
S1, the ideal velocity-time graph for establishing the buffer course of work, and ideal velocity-time graph deposit is controlled
The memory module of device 11 processed；
S2, it is triggered when detecting lift car i.e. by cushion at collision close to switch 9, sends the signal to controller
11, controller 11 issues control instruction to sensor 12, and sensor 12 samples car mass M and car speed V at this time10And it feeds back
To controller 11, initial excitation electric current I is calculated0And magnet exciting coil 32 is inputted by power supply device 10；
In S3, carriage buffering course, sensor 12 samples a car speed V at interval of period Δ T1i, calculate pair
Answer car speed V1iExciting current I1iAnd the difference DELTA V of actual car speed and ideal car speedi=V1i-V2i, according to M
(T is calculated with Δ Vi0+ Δ T × i) moment electric current correction value Δ Ii, then (T0+ Δ T × i) moment should input magnet exciting coil 32
Exciting current be Ii=I1i+ΔIi；Wherein, T0It is to approach car speed V when switch 9 triggers10Corresponding ideal Velocity-time is bent
At the time of on line, V1iIt is (T0+ Δ T × i) moment actual car speed, collected by sensor 12, V2iIt is (T0+ΔT×
I) the ideal car speed at moment is obtained by ideal velocity-time graph；
S4, work as V1iWhen=0, terminate lift car buffering course.
The utility model compared with the existing technology have following advantages and effects
(1) the utility model can be rapid, reversible change with magnetic field using the viscosity and shear yield stress of magnetorheological fluid
Mechanical characteristic, the damping force for enabling buffer to provide realize step-less adjustment with the variation of carriage physical parameter, have good suitable
The comfort and stability of buffering course can be improved suitable for the lift car of the different speeds of service in Ying Xing.
(2) the utility model constructs the magnetic circuit of comparative superiority, reduces leakage field using magnet ring and resistance magnet ring matching design is drawn
Loss, increases the effective length of damp channel, improves the performance of buffer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of magnetorheological buffer of elevator disclosed in the utility model embodiment；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the control method flow chart of magnetorheological buffer of elevator disclosed in the utility model embodiment；
In figure, 1- piston rod, 2- upper end cover, 21- sealing ring, 3- piston component, 31- coiling magnetizer, 32- excitation wire
Circle, 33- draw magnet ring, and 34- hinders magnet ring, 4- cylinder body, 41- sealing ring, 5- compressed spring, 6- lower cover, 61- cushion, 7- spring
Pressing sleeve, 8- switch block, 81- push rod, 811- push rod roller, 812- push rod bulge loop, 82- reset spring, 83- guideway, 84-
Travel switch, 85- supporting plate, the close switch of 9-, 10- power supply device, 11- controller, 12- sensor.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment one
As shown in Figure 1, present embodiment discloses a kind of magnetorheological buffer of elevator, including cylinder body 4, it is located at cylinder body 4
The upper end cover 2 at top and the lower cover 6 positioned at 4 bottom of cylinder body, the piston rod 1 positioned at 4 internal cavities of cylinder body, piston component 3, pressure
Contracting spring 5, the switch block 8 inside upper end cover 2, power supply device 10, controller 11 and sensor 12.4 top of cylinder body and
Upper end cover 2 forms epicoele, and inside is equipped with piston component 3, while epicoele inside cavity fills magnetorheological fluid；4 lower part of cylinder body is under
End cap 6 forms cavity of resorption, and inside is equipped with compressed spring 5.Piston rod 1 is divided into four sections of multi-diameter shafts from top to bottom, first segment multi-diameter shaft with
2 co-axial seal of upper end cover is slidably connected, and second segment multi-diameter shaft connect with 3 coaxial threaded of piston component and is placed in upper intracavitary, third
Central through hole co-axial seal between section multi-diameter shaft and two chambers is slidably connected, and the 4th section of axis is threadedly coupled juxtaposition with spring press-cover 7
It is intracavitary under.
1 first segment multi-diameter shaft of piston rod offers arc groove, cooperates with the switch block 8 being set to inside upper end cover 2,
For detecting movement and the trigger signal of piston rod 1.
Piston rod 1 is respectively equipped with Gewindefreistiche at two shaft shoulders of second segment multi-diameter shaft and the 4th section of multi-diameter shaft.
The side of upper end cover 2 offers laterally-graded hole, and laterally-graded hole includes coaxial macropore and aperture, laterally-graded
The aperture in hole and the central tap hole of upper end cover 2 penetrate through and connect, the macropore in laterally-graded hole and the peripheral wall cutting planes of upper end cover 2
Perforation.
The top of piston rod 1 is built-in with close to switch 9, connection signal line pass through the central tap hole of piston rod 1 via
It draws and is connected to controller 11 in buffer bottom.
Piston component 3 includes that coiling magnetizer 31, magnet exciting coil 32, resistance magnet ring 34 and a pair draw magnet ring 33.Coiling magnetic conduction
Body 31 is connected to the second segment multi-diameter shaft of piston rod 1 by coaxial threaded, and offsets with the shaft shoulder；Magnet exciting coil 32 is wound in coiling
In the annular groove of 31 outer rim of magnetizer, and pass through the laterally-graded hole of coiling magnetizer 31 and the central tap hole of piston rod 1
Power supply device 10 is connected to via the extraction of lower cover 6 of buffer bottom；A pair draws magnet ring 33 and is sheathed on coiling magnetizer 31
Outer rim, the annular gap for drawing cavity wall on magnet ring 33 and cylinder body 4 are the damp channel of magnetorheological fluid；Hinder the cross section of magnet ring 34
For inverted T-shaped, draw between magnet ring 33 set on a pair, to reduce leakage field loss and increase the effective length of damp channel.
The total magnetic flux that magnet exciting coil 32 generates is shunted when flowing through 3 both ends of piston component, and a portion magnetic flux is straight
It connects and flows to cavity wall on cylinder body 4 by damp channel in 3 end of piston component, another part magnetic flux first flows to a pair and draws magnet ring
33, then draw magnet ring 33 via a pair and cavity wall on cylinder body 4 is flowed to by damp channel.
Lower cover 6 is the three-level cylinder boss structure equipped with central through hole, is equipped with cushion 61 in top cylindrical groove.
Sensor 12 is installed on lift car bottom and lead is connected to controller 11, and the sensor 12 is for acquiring elevator
The physical parameters such as the quality and speed of carriage simultaneously feed back to controller 11.
Wherein, coiling magnetizer 31 uses strong permeability magnetic material with magnet ring 33 is drawn, and cylinder body 4 uses permeability magnetic material, 1 He of piston rod
It hinders magnet ring 34 and uses non-magnet material.
As shown in Fig. 2, switch block 8 includes that push rod 81, reset spring 82, guideway 83, supporting plate 85 and stroke are opened
84 are closed, guideway 83 is sealingly fastened on the peripheral wall cutting planes of upper end cover 2, and 83 inner cavity of guideway, which is equipped with to be slidingly sealed, matches
The push rod 81 of conjunction, push rod 81 pass through the laterally-graded hole of upper end cover 2 and are arranged with reset spring 82, and push rod 81 is close to upper end cover 2
Side be equipped with push rod bulge loop 812, and the side top is equipped with push rod roller 811, and 82 both ends of reset spring are convex with push rod respectively
The right side of ring 812 and the left side of guideway 83 offset.Under the action of reset spring 82,812 left side of push rod bulge loop
It offsets with the laterally-graded hole end surface of upper end cover 2, and push rod roller 811 is in the arc groove of 1 first segment multi-diameter shaft of piston rod
It is interior.The diameter of push rod 81 is less than the hole diameter in the laterally-graded hole of upper end cover 2, and it is horizontal that the outer diameter of reset spring 82 is less than upper end cover 2
To the diameter macropores of stepped hole, the outer diameter of push rod bulge loop 812 is laterally-graded less than upper end cover 2 greater than the outer diameter of reset spring 82
The diameter macropores in hole, the diameter of push rod roller 811 are less than the radius of curvature of the arc groove of 1 first segment multi-diameter shaft of piston rod, push away
Bar roller 811 and the aperture in the laterally-graded hole of upper end cover 2 are to be in rolling contact.Supporting plate 85 is fixed on 4 outer wall of cylinder body, travel switch
84 right sides be fixed on supporting plate 85 and the Roller fork of travel switch 84 is made to be in push rod 81, when piston rod 1 moves down
When push rod 81 trigger travel switch 84 Roller fork make travel switch 84 act.
Working principle of the utility model is: when detecting lift car i.e. by cushion at collision close to switch 9, by signal
It is sent to controller 11, controller 11 issues control instruction to sensor 12, and sensor 12 samples the quality and speed of carriage for the first time
The physical parameters such as degree simultaneously feed back to controller 11, and controller 11 assigns magnet exciting coil 32 1 by power supply device 10 by calculating
Initial current.The trigger switch component 8 when piston rod 1 moves downward, elevator safety loop disconnect, and controller 11 issues control at this time
Sensor 12 is arrived in system instruction, and sensor 12 starts periodic sampling and feeds back to controller 11, and controller 11 calculates current time
The electric current correction value of required exciting current and a upper sampling time interval assigns magnet exciting coil 32 by control power supply device 10
One be corrected after exciting current.So circulation approaches the speed-time curve of carriage buffering course preset ideal bent
Line.
Embodiment two
As shown in figure 3, including the following steps: present embodiment discloses a kind of magnetorheological elevator buffer control method
S1, the ideal velocity-time graph for establishing the buffer course of work, and ideal velocity-time graph deposit is controlled
The memory module of device 11 processed；
S2, it is triggered when detecting lift car i.e. by cushion at collision close to switch 9, sends the signal to controller
11, controller 11 issues control instruction to sensor 12, and sensor 12 samples car mass M and car speed V at this time10And it feeds back
To controller 11, initial excitation electric current I is calculated0And magnet exciting coil 32 is inputted by power supply device 10；
In S3, carriage buffering course, sensor 12 samples a car speed V at interval of period Δ T1i, calculate pair
Answer car speed V1iExciting current I1iAnd the difference DELTA V of actual car speed and ideal car speedi=V1i-V2i, according to M
(T is calculated with Δ Vi0+ Δ T × i) moment electric current correction value Δ Ii, then (T0+ Δ T × i) moment should input magnet exciting coil 32
Exciting current be Ii=I1i+ΔIi；
Wherein, T0It is to approach car speed V when switch 9 triggers10At the time of on corresponding ideal speed-time curve；V1iIt is
(T0+ Δ T × i) moment actual car speed, collected by sensor 12；V2iIt is (T0+ Δ T × i) moment ideal sedan-chair
Compartment speed is obtained by ideal velocity-time graph.
S4, work as V1iWhen=0, terminate lift car buffering course.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (9)
1. a kind of magnetorheological buffer of elevator, which is characterized in that the buffer includes cylinder body (4), is located at cylinder body (4)
The upper end cover (2) at top and the lower cover (6) positioned at cylinder body (4) bottom, are lived at the piston rod (1) positioned at cylinder body (4) internal cavities
Plug assembly (3), compressed spring (5) are set to upper end cover (2) internal switch block (8), power supply device (10), controller (11)
And sensor (12), wherein cylinder body (4) top and upper end cover (2) form epicoele, and inside is equipped with piston component (3), together
When epicoele inside cavity fill magnetorheological fluid；Cylinder body (4) lower part and lower cover (6) form cavity of resorption, and inside is equipped with compression
Spring (5), the piston rod (1) are divided into four sections of multi-diameter shafts, first segment multi-diameter shaft and upper end cover (2) co-axial seal from top to bottom
It is slidably connected, second segment multi-diameter shaft connect with piston component (3) coaxial threaded and is placed in upper intracavitary, third section multi-diameter shaft and two chambers
Between central through hole co-axial seal be slidably connected, the 4th section of axis be threadedly coupled with spring press-cover (7) be placed in down it is intracavitary；
The sensor (12) is installed on lift car bottom and lead is connected to controller (11), which is used for
The control instruction of reception controller (11) and then the quality and speed parameter of acquisition lift car simultaneously feed back to controller (11)；
It is built-in at the top of the piston rod (1) close to switch (9), connection signal line is drawn by the center of piston rod (1)
String holes is connected to controller (11) via lower cover (6) extraction of buffer bottom；
The controller (11) is built-in with memory module and computing module；
The controller (11) is connected with power supply device (10) conducting wire, controls the power supply of power supply device (10)；
The switch block (8) is connected with controller (11) conducting wire；
The piston component (3) includes that coiling magnetizer (31), magnet exciting coil (32), resistance magnet ring (34) and a pair draw magnet ring
(33), the coiling magnetizer (31) is connected to the second segment multi-diameter shaft of piston rod (1) by coaxial threaded, and with shaft shoulder phase
It supports；The magnet exciting coil (32) is wound in the annular groove of coiling magnetizer (31) outer rim, and passes through coiling magnetizer
(31) the central tap hole in laterally-graded hole and piston rod (1) is connected to electricity via lower cover (6) extraction of buffer bottom
Source device (10)；Described a pair draws the outer rim that magnet ring (33) is sheathed on coiling magnetizer (31), this draws magnet ring (33) and cylinder body
(4) damp channel of the annular gap composition magnetorheological fluid of cavity wall on；The cross section of the resistance magnet ring (34) is inverted T-shaped,
Draw between magnet ring (33) set on a pair.
2. a kind of magnetorheological buffer of elevator according to claim 1, which is characterized in that the piston rod (1) first
Section multi-diameter shaft offers arc groove, and the switch block (8) internal with upper end cover (2) are set to cooperates, for detecting piston rod
(1) movement and trigger signal.
3. a kind of magnetorheological buffer of elevator according to claim 1, which is characterized in that the one of the upper end cover (2)
Side offers laterally-graded hole, and laterally-graded hole includes coaxial macropore and aperture, aperture and upper end cover (2) in laterally-graded hole
Central tap hole penetrate through connection, the peripheral wall cutting planes of the macropore in laterally-graded hole and upper end cover (2) penetrate through.
4. a kind of magnetorheological buffer of elevator according to claim 1, which is characterized in that the piston rod (1) is
Gewindefreistiche is respectively equipped at two shaft shoulders of two sections of multi-diameter shafts and the 4th section of multi-diameter shaft.
5. a kind of magnetorheological buffer of elevator according to claim 1, which is characterized in that the magnet exciting coil (32) produces
Raw total magnetic flux is shunted when flowing through piston component (3) both ends, and a portion magnetic flux is directly in piston component (3) end
Cavity wall on cylinder body (4) is flowed to by damp channel, another part magnetic flux first flows to a pair and draws magnet ring (33), then draws via a pair
Magnet ring (33) flows to cavity wall on cylinder body (4) by damp channel.
6. a kind of magnetorheological buffer of elevator according to claim 1, which is characterized in that the lower cover (6) is to set
There is the three-level cylinder boss structure of central through hole, is equipped with cushion (61) in top cylindrical groove.
7. a kind of magnetorheological buffer of elevator according to claim 3, which is characterized in that switch block (8) packet
Include push rod (81), reset spring (82), guideway (83), supporting plate (85) and travel switch (84), the guideway
(83) it is sealingly fastened on the peripheral wall cutting planes of upper end cover (2), the guideway (83) inner cavity, which is equipped with to be slidingly sealed, matches
The push rod (81) of conjunction, the push rod (81) pass through the laterally-graded hole of upper end cover (2) and are arranged with reset spring (82), push rod
(81) side close to upper end cover (2) is equipped with push rod bulge loop (812), and the side top is equipped with push rod roller (811), resets bullet
Left side of spring (82) both ends respectively with the right side of push rod bulge loop (812) and guideway (83) offsets, in reset spring
(82) under the action of, push rod bulge loop (812) left side and the laterally-graded hole end surface of upper end cover (2) offset, and push rod roller
(811) in the arc groove in piston rod (1) first segment multi-diameter shaft；The supporting plate (85) is fixed on cylinder body (4) outer wall,
The travel switch (84) is fixed on supporting plate (85) and the Roller fork of travel switch (84) is made to be in push rod (81)
Right side, when piston rod (1) moves down, the Roller fork of push rod (81) triggering travel switch (84) keeps travel switch (84) dynamic
Make, the travel switch (84) lead is connected to controller (11).
8. a kind of magnetorheological buffer of elevator according to claim 7, which is characterized in that the diameter of the push rod (81)
Less than the hole diameter in upper end cover (2) laterally-graded hole, the outer diameter of the reset spring (82) is less than upper end cover (2) lateral rank
The diameter macropores in terraced hole, the outer diameter of the push rod bulge loop (812) are greater than the outer diameter of reset spring (82) and are less than upper end cover (2)
The diameter macropores in laterally-graded hole, the diameter of the push rod roller (811) are less than the arc of piston rod (1) first segment multi-diameter shaft
The aperture in the radius of curvature of groove, the push rod roller (811) and upper end cover (2) laterally-graded hole is to be in rolling contact.
9. a kind of magnetorheological buffer of elevator according to claim 7, which is characterized in that the coiling magnetizer (31)
Strong permeability magnetic material is used with magnet ring (33) are drawn, the cylinder body (4) uses permeability magnetic material, the piston rod (1) and resistance magnet ring
(34) non-magnet material is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002092.5U CN209522443U (en) | 2019-01-02 | 2019-01-02 | A kind of magnetorheological buffer of elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002092.5U CN209522443U (en) | 2019-01-02 | 2019-01-02 | A kind of magnetorheological buffer of elevator |
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| CN209522443U true CN209522443U (en) | 2019-10-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111824913A (en) * | 2020-07-24 | 2020-10-27 | 中国矿业大学 | A magnetorheological tank channel and tank channel beam connection structure and mine shaft equipment |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
-
2019
- 2019-01-02 CN CN201920002092.5U patent/CN209522443U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111824913A (en) * | 2020-07-24 | 2020-10-27 | 中国矿业大学 | A magnetorheological tank channel and tank channel beam connection structure and mine shaft equipment |
| CN113586646A (en) * | 2021-07-27 | 2021-11-02 | 盐城工学院 | Active control device for electromagnetic rheological shock absorber of automobile |
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