CN209177790U - A kind of intelligent vertical braking buffer system based on magnetic rheology effect - Google Patents
A kind of intelligent vertical braking buffer system based on magnetic rheology effect Download PDFInfo
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- CN209177790U CN209177790U CN201821853931.6U CN201821853931U CN209177790U CN 209177790 U CN209177790 U CN 209177790U CN 201821853931 U CN201821853931 U CN 201821853931U CN 209177790 U CN209177790 U CN 209177790U
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Abstract
The utility model relates to a kind of, and the intelligent vertical based on magnetic rheology effect brakes buffer system, including retarder, buffer, speed probe, pressure sensor, optoelectronic switch and controller；Retarder transmission connection is being promoted between motor and elevator drum, buffer is mounted in vertical in box beam and connects Tank-supporting device, speed probe is mounted on elevator drum, and pressure sensor is mounted on the bottom of cage, and optoelectronic switch is mounted on vertical side wall；Retarder, buffer, speed probe, pressure sensor, optoelectronic switch are connect with controller respectively.It is high that the utility model brakes buffer system intelligence degree, it can be according to the speed, weight and location information of cage, the damping force of adjustment retarder and buffer in time, buffer is set to play the role of accepting cage flexible buffer, it prevents personnel or goods and materials since impact is damaged, while can avoid pulleying caused by personnel's operation error, over-discharge and hypervelocity accident.
Description
Technical field
The utility model relates to a kind of, and the intelligent vertical based on magnetic rheology effect brakes buffer system, belongs to mining equiment
Technical field.
Background technique
Mine hoist is one of main equipment in coal production transportation system, in actual production mine hoist
Normal work be related to entire mine safety production.In recent years, vertical shaft hoisting is increasingly becoming in China's mining production and adopts extensively
A kind of Lifting Convey mode.According to incompletely statistics, China has more than 37,000, vertical.
Use situation for current mine shaft hoist system in mine, hoisting container, single lift amount and promotion speed
Constantly refreshing the limit, the problem of vertical shaft hoisting security protection technology highlights further.At present in the control of elevator, braking
Etc. links be provided with multiple tracks electrical equipment control and mechanical braking protective device, technology also become better and approaching perfection day by day, but due to operation error, system
The reason of rotating ring section mechanical breakdown and electric appliance, circuit etc., the generation of overwind trouble or commonplace or even Zao Cheng Dun
The major accident of tank, pendant tank etc, causes great economic loss and casualties, has seriously affected the normal of mining production
Operation.
According to " safety regulations in coal mine " the 396th article of regulation, " must be provided with being promoted in lifting system of the speed greater than 3m/s
Collision prevention girders and Tank-supporting device." " collision prevention girders allow for blocking the container or counterweight risen after pulleying；Tank-supporting device must be able to
To enough the container to fall again after collision prevention girders be hit or counterweight is held, and guarantee that distance of fall is no more than 0.5m." the 397th article of regulation,
" in overwind height or distance of overfall, the buffer unit of Ying Anshe reliable performance, buffer unit should be able to be by the container of full speed pulleying
Smoothly stop."
However elevator overspeed operation only can not be fully solved by collision prevention girders and traditional Tank-supporting device, pulleying thing occurs
Therefore when damage of the impact energy to lifting system.
Therefore, in order to avoid overwind trouble, many scientific research people occur during heavily loaded high-speed cruising for mine hoisting system
Member and engineer propose a variety of solutions.
Chinese patent literature CN107512644A discloses a kind of skip bucket pulleying buffer and supporting cage device, and device is mainly by upper and lower
The part such as fixed frame, energy absorber and arch top plate forms.Wherein energy absorber uses the rubber slab of 30~50cm thickness.When device works
Deformation is first brought it about by cage shock arch top plate and forms first order buffering, after the completion of arch top plate deformation, then by rubber
Energy absorber made of plate deformation occurs formed the second level buffering.But use such buffering thinking, the suction of rubber slab and arch top plate
Can ability it is limited, can only the speed of service to tank and load-carrying have certain buffering effect in a small range.When cage speed and
When load-carrying is more than setting range, this device, which can not all absorb impact energy, to dissipate, and sets when cage speed and load-carrying are lower than
Definite value but when being still greater than safe range, and lifting system can not effectively be buffered.
Chinese patent literature CN106395542A discloses a kind of friction drive hoist overwinding-proof based on ABS and the system that alarms
System, system have mainly installed a set of speed measuring device and electronic control unit additional outside the brake gear of original vertical shaft hoisting winch, lead to
It crosses speed measuring device and judges whether elevator operates in fixing speed, if elevator overspeed is run, electronic control unit control
Brake carries out " point is stopped " braking to elevator winch disk.Designing in this way is advantageous in that brake disc can be made to be in tight lock always
State prevents cage from stopping that disconnected rope occurs suddenly in the case where high-speed overload without there is a situation where braking with locked wheels emergency stops
Fall the accident of well.Although this mentality of designing can prevent winch from braking the impact to lifting system, hydraulic system suddenly
Constantly will cause Prevention of Hydraulic System Overheating to brake charge and discharge liquid influences its reliability, on the other hand when lifting system load change
When, which can not adjust brake force to adapt to the variation of lifting system load, and braking is caused to accelerate to move excessive or braking distance
It is too long.
The above design not can solve the braking buffer damping power that vertical transports when being lifted at friction speed, different load-carryings can
The problem of reconciliation reliability.Therefore, the above mentality of designing there are aiming at the problem that, the utility model proposes one kind be based on magnetic current
The vertical braking buffer system of change effect just focuses on solving system when mine shaft hoist system is run under friction speed, load condition
Buffer problem when dynamic and generation overwind trouble.
Utility model content
In view of the deficiencies of the prior art, it is slow to provide a kind of intelligent vertical braking based on magnetic rheology effect for the utility model
Flushing system.
The technical solution of the utility model is as follows:
A kind of intelligent vertical braking buffer system based on magnetic rheology effect, including retarder, buffer, revolution speed sensing
Device, pressure sensor, optoelectronic switch and controller；
Retarder transmission connection is being promoted between motor and elevator drum, and buffer is mounted in vertical in box beam and connects
Tank-supporting device is connect, speed probe is mounted on elevator drum, and pressure sensor is mounted on the bottom of cage, optoelectronic switch peace
On vertical side wall；
Retarder, buffer, speed probe, pressure sensor, optoelectronic switch are connect with controller respectively.
Preferably, retarder includes moving-coil, stator, explosion-resistant enclosure, transmission shaft；Moving-coil, stator, explosion-resistant enclosure are from inside to outside
Successively be set with and both ends be packaged by small end cover, big end cap, stator periphery is wound with electromagnetic coil, moving-coil and stator it
Between be filled with magnetorheological fluid, transmission shaft is through the small end cover at both ends, big end cap and is connect by gusset with moving-coil, the two of transmission shaft
The end shaft rigid connection with the output shaft, elevator drum that promote motor respectively.
Preferably, the Tank-supporting device selects a square plate.The benefit of this design is that square plate can play a cage
Impact force be distributed to the effect on four buffers.
Preferably, gusset is inclined to set, and tilt angle is 15~25 °.The benefit of this design is to guarantee connection and passing
Under the premise of moving reliably, gusset with angle can be rotated with transmission shaft and be rotated, and play the role of blower cools down for retarder, anti-
Only retarder long-play led to heat affecting braking efficiency.
Preferably, buffer includes explosion-resistant enclosure and cylinder barrel, damp channel is provided in explosion-resistant enclosure and by upper and lower two
The damp channel end cap at end assembles, and the periphery of damp channel is wound with electromagnetic coil, damp channel and upper and lower ends damp channel
End cap offers coaxial damping hole, and the upper and lower ends of explosion-resistant enclosure are separately connected the cylinder barrel, and upper end cylinder barrel is provided with movable post
And encapsulated by buffer end cap, lower end cylinder barrel is provided with reset spring, movable post and is encapsulated by buffer end cap, movable post and resistance
Magnetorheological fluid is filled between Buddhist nun channel.
Preferably, there are four buffer, four square arrangements of buffer for setting between box beam and Tank-supporting device.
Preferably, optoelectronic switch is mounted at the position away from vertical shaft bottom and top 10m.
Preferably, controller selects computer.
The utility model has the beneficial effects that:
1) the utility model installs retarder additional between vertical shaft hoist and motor, when speed probe detects elevator
When overspeed, retarder starting is decelerated to brake for elevator within the scope of fixing speed.On the one hand ensure that vertical is transported in this way
Defeated is safe and reliable, on the other hand extends the service life of brake for lifting machine He its hydraulic system.
2) away from installation optoelectronic switch at vertical shaft bottom and top 10m.The optoelectronic switch quilt when cage is run to the position
Triggering, retarder, which is powered, to be run, and is made the reduction of the cage speed of service, is on the one hand cooperated brake for lifting machine braking brake, Ke Yiyan
The long brake for lifting machine service life；On the other hand can guarantee that overwind trouble occurs even if elevator, cage also can be controllable with one
Speed impacts buffer unit.
3) link of boards with inclination angle is used between retarder moving-coil and transmission shaft, is guaranteeing connection and reliable transmission
Under the premise of, gusset with angle can be rotated with transmission shaft and be rotated, and played the role of blower as retarder cooling, prevented retarder
Long-play led to heat affecting braking efficiency.
4) buffer is installed in shaft bottom and top, when due to personnel's operation error or Mechatronic Systems failure initiation pulleying, pendant
When tank accident, controller adjusts buffer cushioned resistance according to cage load-carrying and speed, plays buffer and accepts cage flexibility
Buffer function prevents personnel or goods and materials to be damaged due to impact.
5) buffer and retarder are based on magnetic rheology effect design, can be according to the elevator speed of service and cage weight tune
Buffer damping power is saved, accomplishes flexible buffer, keeps buffering course more steady controllable, braking ability is more reliable.
6) a whole set of vertical braking buffer system uses closed-loop control, by speed probe, pressure sensor and optoelectronic switch
Speed, load-carrying and the location information of detection cage operation respectively, the magnetic current modified line that controller passes through control buffer and retarder
Loop current automatically adjusts buffer damping.Avoid pulleying caused by personnel's operation error, over-discharge and hypervelocity accident.
Detailed description of the invention
Fig. 1 is braking buffering system buffers device part arrangement schematic diagram；
Fig. 2 is braking buffering system buffers device part arrangement top view；
Fig. 3 is braking buffer system retarder part arrangement schematic diagram；
Fig. 4 is the structural schematic diagram of retarder；
Fig. 5 is the structural side view of retarder；
Fig. 6 is the structural schematic diagram of buffer；
Fig. 7 is the cross-sectional view of the structure of buffer；
Fig. 8 is braking buffer system electric operation control circuit figure；
Wherein: 1- elevator drum；2- buffer；3- Tank-supporting device；4- box beam；5- cage；6- pressure sensor；7- light
Electric switch；8- promotes motor；9- transmission shaft；10- stator；11- explosion-resistant enclosure；12- electromagnetic coil；13- speed probe；14-
Magnetorheological fluid；15- moving-coil；The big end cap of 16-；17- small end cover；18- gusset；20- movable post；21- buffer end cap；22- cylinder barrel；
23- damp channel end cap；24- explosion-resistant enclosure；25- damp channel；26- magnetorheological fluid；27- electromagnetic coil；28- damping hole；29-
Reset spring.
Specific embodiment
The utility model is described further by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1:
As shown in Figures 1 to 8, the present embodiment provides a kind of, and the intelligent vertical based on magnetic rheology effect brakes buffer system
System, which mainly includes retarder, buffer 2, speed probe 13, pressure sensor 6,7 and of optoelectronic switch
Controller；
Retarder transmission connection is being promoted between motor 8 and elevator drum 1, and elevator drum 1 lifts the tank in vertical
Cage 5, buffer 2 are mounted in vertical in box beam 4 and connect Tank-supporting device 3, and the Tank-supporting device 3 in the present embodiment is a square bar
Plate is separately installed with four buffers 2 in the box beam 4 at shaft bottom and top, and four buffers 2 are in pros on square plate
Shape arrangement, it is ensured that cage 5 is evenly dispersed into power on four buffers 2 when hitting square plate.Speed probe 13 is pacified
On elevator drum 1, for knowing that the revolving speed of elevator, pressure sensor 6 are mounted on the bottom of cage 5, for knowing
The total quality of cage, optoelectronic switch 7 are mounted on vertical side wall, are being distinguished at vertical shaft bottom and the position of top 10m
A pair of of optoelectronic switch is installed.
Retarder, buffer 2, speed probe 13, pressure sensor 6, optoelectronic switch 7 are connect with controller respectively, are adopted
With closed-loop control, controller selects computer in the present embodiment, subsequent computer according to speed probe 13, pressure sensor 6,
Speed that optoelectronic switch 7 obtains, weight, location information adjust the coil current of retarder, buffer 2, to play intelligence
Control the effect of retarder, buffer.
Specifically, retarder includes moving-coil 15, stator 10, explosion-resistant enclosure 11, transmission shaft 9；Moving-coil 15, is prevented stator 10
Quick-fried shell 11 is successively set with from inside to outside and is packaged by small end cover 17, big end cap 16 to both ends, the winding of 10 periphery of stator
There is electromagnetic coil 12, is filled with magnetorheological fluid 14 between moving-coil 15 and stator 10, small end cover 17, big of the transmission shaft 9 through both ends
End cap 16 is simultaneously connect by gusset 18 with moving-coil 15, and the both ends of transmission shaft 9 are rolled with the output shaft of promotion motor 8, elevator respectively
The shaft rigid connection of cylinder 1.
Wherein, gusset 18 is inclined to set, and the axis angle of gusset 18 and transmission shaft 9 is 15 ° in the present embodiment, transmission shaft
9 is identical as moving-coil internal diameter through small end cover 17, the hole of big end cap 16, can there is biggish heat dissipation channel.Guaranteeing connection and transmission
Under the premise of reliable, gusset with angle can be rotated with transmission shaft and be rotated, and played the role of blower as retarder cooling, prevented
Retarder long-play led to heat affecting braking efficiency.
Buffer 2 includes explosion-resistant enclosure 24 and cylinder barrel 22, damp channel 25 is provided in explosion-resistant enclosure 24 and by up and down
The damp channel end cap 23 at both ends assembles, and the periphery of damp channel 25 is wound with electromagnetic coil 27, damp channel 25 and upper and lower two
End resistance Buddhist nun passage end cap 23 offers coaxial damping hole 28, and the upper and lower ends of explosion-resistant enclosure 24 are separately connected the cylinder barrel 22,
Upper end cylinder barrel is provided with movable post 20 and is encapsulated by buffer end cap 21, and lower end cylinder barrel is provided with reset spring 29, movable post 20 simultaneously
It is encapsulated by buffer end cap 21, magnetorheological fluid 26 is filled between movable post 20 and damp channel.
The installation site relationship of entire braking buffer system is as shown in Figure 1, circuit connecting relation (control planning) such as Fig. 8 institute
Show, specific cabling cable wiring manufacture is implemented according to routine techniques.In the present embodiment, speed probe, pressure sensor, light
Electric switch selects commercial product.Retarder, buffer control the electric current of electromagnetic coil by computer, pass through electromagnetic wire
The magnetic fields of generation are enclosed to change the state of magnetorheological fluid, since real-time control, corresponding damping force may be implemented in magnetorheological fluid
Adjusting consecutive variations and variation it is reversible.Buffer and retarder exactly using this characteristic of magnetorheological fluid come to damping force into
Row is adjusted in real time, it is ensured that braking buffer system runs on different load-carryings in lifting system and speed Shi Junneng plays flexible buffer
Effect, improves braking reliability, prevents accident.
Embodiment 2:
A kind of intelligent vertical braking buffer system based on magnetic rheology effect, structure is as described in Example 1, difference
Being in the axis angle of: gusset 18 and transmission shaft 9 is 25 °.
Embodiment 3:
A kind of working method of the intelligent vertical braking buffer system based on magnetic rheology effect as described in Example 1,
Specific operational process is as follows:
Operating status one: when cage operates normally, i.e., the speed of service of elevator drum is within the specified scope
Pressure sensor 6 measures the load-carrying M of cage 5 and is transferred to controller, promotes speed probe 13 after motor 8 starts
It measures 1 speed of service S of elevator drum and is transferred to controller, controller will measure speed and specified value SgComparison, as S < SgWhen
Judge that its normal operation, retarder do not work；
When cage 5 is run to close to shaft bottom or top parking area, the optoelectronic switch 7 being mounted on shaft wall is triggered,
Controller control retarder is powered and according to cage weight M and real-time speed S adjustment the supply current I measuredh, so that control is slow
Fast device damping force FhAllowing cage speed steadily to decline cooperation brake for lifting machine band-type brake, (band-type brake here is the brake of original elevator
Vehicle device band-type brake, retarder only play the purpose of assisted deceleration in this operating status) cage 5 is stopped at into predetermined bits
It sets；At the same time, when optoelectronic switch 7 is triggered, controller control buffer is powered on and is accordingly adjusted according to M and S pair
The electric current I of buffer outputd, to adjust the buffer damping power F of bufferd；
Or operating status two: when cage overspeed, i.e., the speed of service of elevator drum is greater than fixing speed
Pressure sensor 6 measures the weight M of cage and is transferred to controller, promotes speed probe 13 after motor 8 starts
It measures 1 speed of service S of elevator drum and is transferred to controller, controller will measure speed and specified value SgComparison, works as S > SgWhen
Judge that it operates in overspeed condition, controller, which controls retarder coil and is powered and adjusts according to 1 speed of service of elevator drum, to be hindered
Buddhist nun's power Fh, elevator drum 1 is made to be decelerated to fixing speed；
Or operating status three: cage fails timely Brake stop when reaching parking position for some reason, occurs
Volume, over-discharge accident
The optoelectronic switch 7 being mounted on the borehole wall when cage 5 is close to shaft bottom or top is triggered, at this point, speed probe
13 roll the speed of service S transport of real-time monitoring elevator drum 1 to controller, controller combination cage weight M and elevator
The speed of service S of cylinder is accordingly adjusted to buffer coil current IdWith retarder coil current Ih, generate buffer and retarder
Corresponding damping force FdAnd Fh, guarantee lifting system when overwind trouble occurs, cage 5 can be with a controllable speed impacts support tank
Device 3 enables buffer 2 to accomplish flexible buffer according to the load-carrying and stroke speed of cage；
After the completion of the processing of lifting system overwind trouble, operator manually controls braking buffer system power-off, at this point, slow
The magnetorheological fluid rushed in device 2, which loses magnetic fields, becomes Newtonian fluid state, returns under the action of reset spring 29 through damping hole
Buffer epicoele is returned, system reset is completed.
Claims (8)
1. a kind of intelligent vertical based on magnetic rheology effect brakes buffer system, which is characterized in that including retarder, buffering
Device, speed probe, pressure sensor, optoelectronic switch and controller；
Retarder transmission connection is being promoted between motor and elevator drum, and buffer is mounted in vertical in box beam and connects support
Tank arrangement, speed probe are mounted on elevator drum, and pressure sensor is mounted on the bottom of cage, and optoelectronic switch is mounted on
On vertical side wall；
Retarder, buffer, speed probe, pressure sensor, optoelectronic switch are connect with controller respectively.
2. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that slow
Device includes moving-coil, stator, explosion-resistant enclosure, transmission shaft；Moving-coil, stator, explosion-resistant enclosure are successively set with from inside to outside and pass through small end
Lid, big end cap are packaged both ends, and stator periphery is wound with electromagnetic coil, and magnetorheological fluid is filled between moving-coil and stator,
Transmission shaft with moving-coil is connect through the small end cover at both ends, big end cap and by gusset, the both ends of transmission shaft respectively with promotion motor
Output shaft, elevator drum shaft rigid connection.
3. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that described
Tank-supporting device selects a square plate.
4. the intelligent vertical based on magnetic rheology effect brakes buffer system as claimed in claim 2, which is characterized in that gusset
It is inclined to set, tilt angle is 15~25 °.
5. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that buffering
Device includes explosion-resistant enclosure and cylinder barrel, and damp channel is provided in explosion-resistant enclosure and is filled by the damp channel end cap of upper and lower ends
Match, the periphery of damp channel is wound with electromagnetic coil, and damp channel and upper and lower ends damp channel end cap offer coaxial damping
Hole, the upper and lower ends of explosion-resistant enclosure are separately connected the cylinder barrel, and upper end cylinder barrel is provided with movable post and is sealed by buffer end cap
Dress, lower end cylinder barrel are provided with reset spring, movable post and are encapsulated by buffer end cap, and magnetic is filled between movable post and damp channel
Rheology liquid.
6. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that in case
There are four buffer, four square arrangements of buffer for setting between beam and Tank-supporting device.
7. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that photoelectricity
Switch is mounted at the position away from vertical shaft bottom and top 10m.
8. the intelligent vertical based on magnetic rheology effect brakes buffer system as described in claim 1, which is characterized in that control
Device selects computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853931.6U CN209177790U (en) | 2018-11-12 | 2018-11-12 | A kind of intelligent vertical braking buffer system based on magnetic rheology effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853931.6U CN209177790U (en) | 2018-11-12 | 2018-11-12 | A kind of intelligent vertical braking buffer system based on magnetic rheology effect |
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| CN209177790U true CN209177790U (en) | 2019-07-30 |
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ID=67364097
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| CN201821853931.6U Active CN209177790U (en) | 2018-11-12 | 2018-11-12 | A kind of intelligent vertical braking buffer system based on magnetic rheology effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230935A (en) * | 2018-11-12 | 2019-01-18 | 山东科技大学 | A kind of intelligent vertical braking buffer system and its application based on magnetic rheology effect |
| CN111824913A (en) * | 2020-07-24 | 2020-10-27 | 中国矿业大学 | Magnetorheological type cage guide and cage guide beam connecting structure and mine shaft equipment |
-
2018
- 2018-11-12 CN CN201821853931.6U patent/CN209177790U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230935A (en) * | 2018-11-12 | 2019-01-18 | 山东科技大学 | A kind of intelligent vertical braking buffer system and its application based on magnetic rheology effect |
| CN109230935B (en) * | 2018-11-12 | 2023-04-25 | 山东科技大学 | Intelligent vertical shaft braking buffer system based on magnetorheological effect and application thereof |
| CN111824913A (en) * | 2020-07-24 | 2020-10-27 | 中国矿业大学 | Magnetorheological type cage guide and cage guide beam connecting structure and mine shaft equipment |
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