CN102303803A - Sliding rope braking scheme and device for friction type hoist - Google Patents
Sliding rope braking scheme and device for friction type hoist Download PDFInfo
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- CN102303803A CN102303803A CN201110140512A CN201110140512A CN102303803A CN 102303803 A CN102303803 A CN 102303803A CN 201110140512 A CN201110140512 A CN 201110140512A CN 201110140512 A CN201110140512 A CN 201110140512A CN 102303803 A CN102303803 A CN 102303803A
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Abstract
The invention relates to a sliding rope braking scheme and a sliding rope braking device for a friction type hoist, which are suitable for lifting systems such as mining friction type hoists, elevators driven by friction force, and the like. The sliding rope braking device comprises hydraulic brakes, a special hydraulic station and a monitoring system, wherein each steel wire rope device is provided with a pair of hydraulic brakes; the hydraulic brakes are arranged in fixed places through which a steel wire rope passes; and the special hydraulic station is controlled by the monitoring system to drive the hydraulic brakes in a bidirectional mode. When the rope slides on the friction type hoist and the accident that a hoisting container is over wound and unwound can be avoided only by braking the steel wire rope, the sliding rope braking device can automatically determine the travel position of the hoisting container and the rope sliding speed, the speed changing rate and the speed changing direction of the steel wire rope, and generate steel wire rope braking force which changes in real time, so that the damage of the steel wire rope can be reduced maximally, and the accident that the hoisting container is over wound and unwound can be effectively avoided. The sliding rope braking process can be automatically finished by a system in a closed loop mode, and also can be manually implemented by operating staff in an open loop mode.
Description
Technical field
The invention belongs to mechanical-electrical-hydraulic integration control field, mine; Relating to mine friction type winder steel rope under abnormal condition produces when sliding; Only take brake wire just can avoid the lifting container pulleying, cross a kind of braking scheme and device that the accident of putting takes place, be applicable to mine friction type winder and the mechanical elevating systems such as elevator that rely on the friction force transmission.
Background technology
The mine friction type winder relies on the friction force transferring power between steel rope and the friction roll liner; Only consider during design in the security and Reliability Design that possesses under the certain condition; And can't consider the sliding rope problem that produces when friction condition changes; As the friction roll liner oil is arranged, reason such as freeze causes under the situation such as the liner friction coefficient reduces, gig overload emergency braking, be not enough to produce enough friction force between steel rope and the friction roll liner and guarantee the elevator system safe operation.
Patent of invention " gig friction braking method and device " (application number: 90100314.X; Publication number: CN1048013A) utilize the magnet control lever, drive rope clamping block by initial tension of spring and clamp steel rope generation friction force.The friction force size that this method produces is unadjustable, and friction force is too small can not to produce enough lock torques, and the excessive easy damage steel rope of friction force might cause rope-broken accident; This device utilizes the electromagnetic actuation connecting rod to realize action, might cause misoperation because of the gig vibration, is difficult to be applied on the friction type winder.
Utility model patent " friction drive hoist the anti-skid device " (patent No.: ZL200720034248.5; Granted publication number: CN201010394Y) adopt installation photo electric axis encoders monitor speed on friction roll and the track adjusting wheel main shaft; Dangerous slip and safe slip notion have been introduced; Utilize friction roll and track adjusting wheel velocity contrast to judge sliding rope form attitude, be in and implement braking when the rope form attitude is slided in danger.This determination methods can not in full force and effectly judge whether steel rope is in sliding rope form attitude, and when friction roll stops the rotation, track adjusting wheel is in constant speed or deceleration regime, system then is judged as safe slip, and anti-skidding mechanism also is failure to actuate, and the erroneous judgement phenomenon occurs; This " friction drive hoist anti-skid device " do not considered the lift stroke problem of lifting container when rope speed is slided in monitoring; When in case lifting container is near the stop position of upper and lower terminal; Even if monitor out dangerous sliding mode, also can not avoid lifting container to cross putting, overwind trouble; This " friction drive hoist anti-skid device " utilizes the intrinsic Hydraulic Station energy storage of gig as pressure source, and the pressure setting, can not be regulated as guide's driving through the pressure relay setting in real time continuously; After the steel rope friction force is fractureed by voussoir dop bolt of rear end plate, rely on voussoir to glide and clamp steel rope generation braking force along the inclined-plane.This brake force size is fixing, can not adjust brake force in real time based on sliding rope speed and hoisting container stroke, causes rope-broken accident easily.Therefore, this " friction drive hoist anti-skid device " is difficult to be applied on the friction type winder.
Application for a patent for invention " slide wireless monitoring system of friction drive hoist and method " (publication number: CN101343009A) photo electric axis encoders monitor friction roll and track adjusting wheel velocity contrast are installed on friction roll and track adjusting wheel main shaft; Velocity contrast is judged as sliding rope when surpassing certain value; Concrete grammar is not described; Even if friction roll and track adjusting wheel velocity contrast surpass certain value under certain state of friction drive hoist, also not necessarily need emergency braking; Described friction roll of this method and track adjusting wheel speed surpass certain value control gig stops, and actual is the emergency braking behavior that gig utilizes self drg to produce, and can not avoid the generation of sliding rope accident.
Utility model patent " friction hoisting steel rope sipping fault the detector " (patent No.: ZL00258525.1; Granted publication number: CN2506609Y) proposed to utilize Hall element, micro controller system, integrated circuit and electronic devices and components to detect the method for friction type winder friction roll, track adjusting wheel speed, direction; Propose how to judge the sliding rope of friction type winder steel rope fault, do not propose braking technology scheme and device after the friction type winder steel rope is slided rope.
Utility model patent " braking of friction drive hoist steel rope and card the rope device " (patent No.: ZL200820040641.X; Granted publication number: CN201232002Y) proposed a kind of friction drive hoist steel rope braking mechanical mechanism and preceding said utility model patent " friction drive hoist the anti-skid device " (patent No.: ZL200720034248.5; Granted publication number: the mechanical mechanism CN201010394Y) has certain similarity, utilizes double roller to improve the wedge shape sliding surface, and brake-pressure does not have controllability, especially during the high ski-running rope of friction type winder steel rope, is difficult to be applied on the gig; " braking of friction drive hoist steel rope and card rope device " do not have to propose how to judge the method for the sliding rope of friction type winder steel rope yet.
At present, domestic mine friction type winder is not taked reliable, perfect technical scheme in sliding rope braking, does not have ripe sliding rope brake equipment yet.
Summary of the invention
The objective of the invention is to the deficiency that exists in the present prior art; A kind of friction type winder is provided in case the braking reliability device after sliding rope accident takes place, as friction type winder in case have only brake wire just can avoid the lifting container pulleying, cross a kind of technical scheme that the accident of putting takes place behind the sliding rope.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
Friction type winder sliding rope braking scheme and device; Comprise: sliding rope liquid braking device, sliding rope special hydraulic station and sliding rope monitoring system three parts; It is characterized in that: sliding rope liquid braking device is made up of double acting hydraulic cylinder, high abrasion polyurethane friction lining; Mounted in pairs on friction type winder directive wheel chamber base plate or derrick, based on the steel wire rope spacing, can be many to installing; Double acting hydraulic cylinder is exerted pressure to steel wire rope through the high abrasion polyurethane liner that assembles on the sliding rope liquid braking device, produces sliding rope drag friction power; Sliding rope special hydraulic station is made up of fuel tank, vane pump, motor, filter, electric-hydraulic proportion regulator, three position four-way electromagnetic valve, pressure transmitter etc.; Under the control of sliding rope monitoring system; To sliding the rope liquid braking device hydraulic pressure of adjustable size is provided, slides the direction of action of the liquid braking device of restricting simultaneously through three position four-way electromagnetic valve control; Sliding rope monitoring system is made up of Programmable Logic Controller Surveillance center, photoelectric encoder, touch screen human-computer interface, rotary switch, voltage input signal, alarm bell etc.; Accomplish speed, the pressure and other parameters monitoring relevant with the sliding rope of friction type winder steel wire rope; Drive sliding rope liquid braking device through the sliding rope of the back control special hydraulic station that calculates, converts and produce sliding rope braking action; Slide rope data, state demonstration and warning simultaneously, sliding rope monitoring system has automated closed-loop and moves control model for two kinds with manual open loop.
The invention has the beneficial effects as follows: friction type winder belongs to a formula mechanical equipment; Rely on the friction force transferring power between steel rope and the friction roll liner; When lifting means normally stops braking and emergency braking; There is gig self brake equipment to exert pressure and produces lock torque, do not have slide relative between steel rope and the friction roll liner to the friction roll brake disc.In case the friction coefficient between steel rope and the friction roll liner diminishes or system inertia power greater than allowing friction force; Steel rope will skid on the friction roll liner; Even if friction roll stops the rotation; Lifting container also can take place to put under inertia and deadweight effect, the pulleying catastrophic failure; Have only brake wire this moment, just can avoid the generation of serious accident.Sliding rope in case take place in friction type winder; If system friction drum braking dish braking failure; Have only brake wire just can avoid the lifting container pulleying, cross when putting grave accident; Sliding rope monitored control system is regulated and action control signal (pressure control and action control signal also can manual work send) to sliding rope special hydraulic station delivery pressure; The action of sliding rope special hydraulic station three position four-way electromagnetic valve; Sliding rope hydraulic brake is under variable pressure oil drives; Exert pressure to steel rope, produce certain friction force.When sliding rope speed had increase tendency, sliding rope special hydraulic station delivery pressure increased, and sliding rope hydraulic brake braking force increases; When sliding rope speed has the trend of reducing, to slide rope special hydraulic station delivery pressure and reduce, sliding rope hydraulic brake braking force reduces, and guarantees that steel rope reliably stops under the situation of extent of damage minimum.In case lifting container is when producing sliding rope near the terminal location that stops up and down; Cunning rope brake equipment pulleying does not take place, put excessively with lifting container is principle; Produce maximum frictional force, maximization reduces sliding rope displacement, prevent lifting container cross put, the generation of overwind trouble; In case when lifting container produced sliding rope at midway location, sliding rope brake equipment was a principle with damage of steel cable degree minimum, produces constant friction power, steel rope slowly stops, and maximization alleviates damage of steel cable, prevent lifting container cross put, the generation of overwind trouble.
The present invention both can be applicable on the friction type winder of mine, also can be applicable to rely in the elevator equipotential formula mechanical elevating system of friction force transmission, and be the last line of defense and the crucial fender guard of friction type winder.
Description of drawings
Fig. 1 is a sliding rope hydraulic brake scheme of installation of the present invention.
Fig. 2 is a sliding rope hydraulic brake constructional drawing of the present invention.
Fig. 3 is a sliding rope special hydraulic station schematic diagram of the present invention.
Fig. 4 is a sliding rope monitored control system schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further:
The present invention realizes through following technical scheme:
Fig. 1 is a sliding rope brake equipment scheme of installation of the present invention; Among Fig. 1,1 is friction roll, and friction roll 1 and main shaft of hoister are for being fixedly connected; Rotation synchronously; Its periphery is the high abrasion liner fixedly, takes on the liner and covers steel rope 4, and steel rope 4 two ends connect lifting container 5; Friction roll 1 rotation; Rely on the friction force drive lifting container 5 between steel rope 4 and friction roll 1 liner up and down reciprocatingly to move, when steel rope 4 produced sliding rope with friction roll 1, both difference occurred at linear velocity; 2 is the friction roll brake disc, and friction roll brake disc 2 is a ring steel plate, is fixed on the friction roll 1, is exerted pressure by Winder Disk Brake, produces lock torque; 3 is track adjusting wheel, is used for adjusting friction roll 1 both sides steel rope 4 width between centerss, forms to enclose cornerite more greatly, produces bigger friction force, and for being slidingly connected, track adjusting wheel 3 linear velocities are equal to steel rope 4 running velocitys between track adjusting wheel 3 and its live spindle; 4 is hoisting cable, and the friction force between dependence and friction roll 1 liner drives two lifting containers 5 and up and down reciprocatingly moves; 5 is lifting container, is used for storing the shipment material; 6 for sliding rope hydraulic brake, utilizes hydraulic pressure to produce the pressure to steel rope 4, and then produce friction force, makes steel rope 4 form braking deceleration, and the 6 general paired uses of sliding rope hydraulic brake are different according to steel rope 4 spacings, also can manyly install arranging.
Sliding rope accident in case take place in friction type winder; When needing brake wire 4 just can eliminate danger; Sliding rope hydraulic brake 6 is under hydraulic action; Steel rope 4 is exerted pressure; Produce friction force between steel rope 4 and the sliding rope hydraulic brake friction lining 11; Reduce steel rope 4 sliding rope speeds, relative sliding velocity is zero between steel rope 4 and friction roll 1 liner.
Fig. 2 is a sliding rope hydraulic brake constructional drawing of the present invention; Among Fig. 2; 7 chew for non-brake noise; Sliding rope hydraulic brake is in braking procedure; Hydraulic oil is chewed 7 oil returns in fuel tank 21 through non-brake noise in the sliding rope hydraulic brake cylinder body 12; Sliding rope hydraulic brake 6 is when non-braking procedure, and pressure oil is chewed 7 oil-feeds through non-brake noise, keeps certain interval between sliding rope hydraulic brake friction lining 11 and the steel rope 4; 8 chew for brake noise; Sliding rope hydraulic brake 6 is in braking procedure; Pressure oil is chewed 8 oil-feeds through brake noise; Sliding rope hydraulic brake 6 is exerted pressure to steel rope 4; When sliding rope hydraulic brake 6 is in non-braking mode; Hydraulic oil is chewed 8 oil returns in fuel tank through brake noise in the sliding rope hydraulic brake cylinder body 12, keeps certain interval between sliding rope hydraulic brake friction lining 11 and the steel rope 4; 9 is piston, through injection pressure oil in sliding rope hydraulic brake cylinder body 12, acts on the piston cross-section, produces certain pressure; 10 is piston rod, and the stressed member as sliding rope hydraulic brake 6 transmits pressure; 11 for sliding rope hydraulic brake friction lining, has certain resistance to abrasion and friction coefficient, and sliding rope hydraulic brake 6 produces friction force between sliding rope hydraulic brake friction lining 11 and the steel rope 4 when steel rope 4 is exerted pressure; 12 for sliding rope hydraulic brake cylinder body, is used for storing the pressure oil transferring power, has two Telescopics.
Friction type winder is in case the rope accident is slided in generation, and when needing brake wire 4 just can eliminate danger, pressure oil is chewed 8 oil-feeds through brake noise, and non-brake noise is chewed 7 oil returns, and sliding rope hydraulic brake friction lining 11 is exerted pressure the braking force that generation needs to steel rope 4; When sliding rope hydraulic brake 6 worked in non-braking mode, pressure oil was chewed 7 oil-feeds through non-brake noise, and brake noise is chewed 8 oil returns, keeps certain clearance between sliding rope hydraulic brake friction lining 11 and the steel rope 4.
Fig. 3 is a sliding rope special hydraulic station schematic diagram of the present invention, and among Fig. 3,13 is coarse filter, removes some suspended matters in the fluid that gets into oil pump 15; 14 is fine filter, removes the more small impurities particle in the pressure oil of blade-type pump 15 output; 15 is blade-type pump, drag down at electrical motor 16, and according to the settling pressure of electric-hydraulic proportion regulator 17, the liquid of output certain pressure and flow; 16 is electrical motor, and by sliding its running of rope monitored control system control, its power supply is the double loop, guarantees still can reliably turn round when the gig power supply has a power failure, and is used for producing the hydraulic efficiency pressure system energy needed; 17 is the electric-hydraulic proportion regulator; Under the situation of blade-type pump 15 work; 0～10V voltage signal according to the input of sliding rope monitored control system; Set up hydraulic system pressure; System's minimum pressure is 0, and maximum pressure depends on the friction coefficient between elevator system equivalent mass, piston 9 areas and steel rope 4 and the sliding rope hydraulic brake friction lining 11; 18 is three position four-way electromagnetic valve; Be divided into braking, non-braking, middle three positions; According to sliding rope monitored control system control signal; Have braking and two positions of non-braking, switch sliding brake noise of restricting hydraulic brake 6 and chew 8 and chew 7 with non-brake noise and be connected oil pipe, mediate under the normal circumstances; The blocking-up of three position four-way electromagnetic valve 18 oil inlets; Electric-hydraulic proportion regulator 17 control voltages are zero, and hydraulic system pressure is less than the residual voltage of 0.01Mpa, and electrical motor 16 shuts down; 19 for sliding rope hydraulic brake 6 oil inlet and oil return pipe cutoff switches, makes things convenient for system overhaul to safeguard; 20 is pressure transformer, and according to pressure range output 0～5V analog voltage signal, sliding rope monitored control system converses the pressure that sliding rope hydraulic brake 6 imposes on steel rope 4 through reading this analog voltage signal, accomplishes automated closed-loop control by sliding rope monitored control system; 21 is fuel tank, is used for laying in certain oil mass.
Friction sliding hoist rope in the event of an accident (accident abseiling rope slip control system has automatically determine, based on the operator may also have wire 4 and the friction pad relative position of the drum 1 for human judgment), to brake rope 4 in order to eliminate the danger, slippery slippery rope rope monitoring system based on speed, calculate an initial voltage signal is input to the electro-hydraulic proportional pressure regulating device 17, three-way solenoid valve 18 operates in the braking position, the piston rod 10 extends slide Rope hydraulic brake friction lining 11 is applied to the wire 4 a certain preload, while sliding rope monitoring system to the monitoring abseiling speed calculation braking deceleration, comparing the feedback signal of the pressure transducer 20, is input to the closed-loop adjustment electro-hydraulic proportional pressure regulating device 17 a voltage signal, until the wire rope 4 is completely stopped state is not slippery ropes; friction hoist rope 4 and the friction drum 1 is no relative sliding between the pads, the three-way solenoid valve 18 working In the non-braking position, the slide rope monitoring system to electro-hydraulic proportional pressure regulating device 17 inputs a constant voltage signal, the piston rod 10 is retracted under a certain pressure, the hydraulic brake rope slip friction lining 11 and the wire rope 4 to maintain a certain clearance, to ensure Rope 4 normal operation; friction hoist the normal course of their work, three-way solenoid valve 18 is in the middle position, electro-hydraulic proportional pressure regulating device 17 controls the voltage is zero, the hydraulic system pressure is less than the residual pressure 0.01Mpa, when the motor 16 is stopped.When lifting container 5 near the sliding rope of pithead position the time; Sliding rope monitored control system is according to the size of the pressure signal of pressure transformer 20 feedbacks, braking deceleration, lifting container 5 stroke apart from well head; Strengthen the voltage signal of input electric-hydraulic proportion regulator 17; Dwindle the stopping distance of steel rope 4, guarantee that lifting container 5 only putting, accomplishing sliding rope braking procedure under the condition of not pulleying.
Sliding rope accident is in case take place in friction type winder, when sliding rope monitored control system can not reach certain braking effect because of faults itself or regulating effect, all can manual work carry out control of braking.Manual shift 0～10V voltage signal inputs to electric-hydraulic proportion regulator 17, and the control position of control three position four-way electromagnetic valve 18 through observing the relative position of sliding rope speed and steel rope 4 and friction roll 1 liner, is accomplished the braking procedure of steel rope 4.
Fig. 4 is a sliding rope monitored control system schematic diagram of the present invention, and among Fig. 4,22 for sliding rope monitored control system monitoring and control centre, mainly contains FX
2N-32MT Programmable Logic Controller (16 road X input terminals, 16 road Y lead-out terminals), FX
2N-4AD four-way analog input module, FX
2N-4DA four-way analog output module is formed, and accomplishes the monitoring of sliding rope relevant data, computing, controllable function; 23 is the alternating current 220V power supply, takes from the double-cricuit supply system, inputs to FX
2N-32MT Programmable Logic Controller is as the needed direct supply of sliding rope monitored control system; 24 is the F940GOT touch screen human-computer interface, through programming, with FX
2NThe communication of-32MT Programmable Logic Controller, the relevant data of show, the rope monitored control system being slided in storage; 25 is friction roll 1 main shaft photoelectric encoder, be connected with friction roll 1 main shaft, and rotation synchronously, selecting model for use is Omron E6B2-CWZ6C 1000P/R, A, B two export to FX mutually
2N-32MT Programmable Logic Controller X0, X1 terminal utilize FX
2N-32MT Programmable Logic Controller in-to-in C251 high-speed counter has FX
2N-32MT Programmable Logic Controller is scaled gig friction roll 1 linear velocity and lift stroke; 26 is track adjusting wheel 3 main shaft photoelectric encoders, be connected with track adjusting wheel 3 main shafts, and rotation synchronously, selecting model for use is Omron E6B2-CWZ6C 1000P/R, A, B two export to FX mutually
2N-32MT Programmable Logic Controller X3, X4 terminal utilize FX
2N-32MT Programmable Logic Controller in-to-in C253 high-speed counter has FX
2N-32MT Programmable Logic Controller is scaled gig track adjusting wheel 3 linear velocities and lift stroke, and the lift stroke that is conversed by track adjusting wheel 3 photoelectric encoders is as the actual lift stroke of control process; 27 is rotor switch, divides braking, non-braking, three positions of zero-bit, and the corresponding state that cut-offs inputs to FX
2N-32MT Programmable Logic Controller X terminal, this switch has operating personal manually to control, and when rotor switch 27 was in braking or non-braking position, sliding rope monitored control system automated closed-loop controllable function lost efficacy; 28 are electric-hydraulic proportion regulator control voltage, and the FX of sliding rope monitored control system monitoring and control centre 22 is arranged
2N-4DA four-way analog output module output 0～10V voltage signal has electric-hydraulic proportion regulator 17 according to the voltage magnitude size, produces the hydraulic pressure of adjustable in pressure; 29 is 0～5V analog voltage signal, and pressure transformer 20 outputs are arranged, and inputs to FX
2N-4AD four-way analog input module; 30 is 0～5V voltage signal, and operating personal manual regulation size is arranged, and inputs to FX
2N-4AD four-way analog input module is used for the manually control of sliding rope; 31 are sliding rope braking relay, need sliding rope glancing impact, sliding rope braking relay 31 junction closures, and three position four-way electromagnetic valve 18 braking magnet coils get electric, and sliding rope hydraulic brake 6 is operated in sliding rope braking mode; 32 are the non-braking relay of sliding rope; Need not slide the rope glancing impact; Non-braking relay 32 junction closures of sliding rope; Three position four-way electromagnetic valve 18 non-braking magnet coils get; Sliding rope hydraulic brake 6 is operated in non-sliding rope braking mode, keeps certain clearance between sliding rope hydraulic brake friction lining 11 and the steel rope 4; 33 is control relay, control relay 33 junction closures, and sliding rope special hydraulic station electrical motor 16 gets electric operation; 34 is alarm bell, when sliding rope monitored control system is judged as steel rope 4 sliding ropes, and FX
2N-32MT Programmable Logic Controller drives alarm bell 34 through the Y lead-out terminal, reminds the field staff to carry out correlated observation and operation.
Sliding rope monitored control system is mainly accomplished rotary pulsed, pressure transformer 20 pressure signals of photoelectric encoder 25, photoelectric encoder 26, sliding rope braking open loop control signal collecting work; Accomplish friction drive hoist lift stroke, friction roll 1 and the calculating of track adjusting wheel 3 linear velocities, friction drive hoist steel rope 4 sliding rope form attitudes calculating judgment tasks; Accomplish sliding rope braking closed loop of friction drive hoist or open loop output Control work; Accomplishing sliding rope brake monitoring shows and warning work with the state of the relevant signal of control.The sliding rope of explanation friction type winder is judged and the control of braking scheme below; After new installation of sliding rope brake equipment; At first the monitoring and control centre 22 of sliding rope monitored control system is accomplished an initial work; Allow friction type winder accomplish a complete lifting process at a slow speed; Inspection in a complete hoisting depth, the FX of monitoring and control centre 22
2NThe total number of pulse that inner C251 high-speed counter of-32MT Programmable Logic Controller and C253 high-speed counter are received converses the cooresponding hoisting depth of each pulse with this, is defined as pulse equivalency, i.e. the FX of monitoring and control centre 22
2NIt is exactly lift stroke that the pulse number that inner C251 high-speed counter of-32MT Programmable Logic Controller and C253 high-speed counter are received multiply by pulse equivalency, and it is exactly hoisting speed that the pulse number of receiving in the unit time multiply by pulse equivalency.Setting friction roll 1 linear velocity is V
1, track adjusting wheel 3 linear velocities are V
3, V
1With V
3The velocity contrast absolute value be △ V, percentage speed variation is a, before the work of sliding rope brake equipment, track adjusting wheel 3 change of line speed rates are a
1, after the work of sliding rope brake equipment, track adjusting wheel 3 change of line speed rates are a
2When being in the operation of fricton-tight state between friction type winder steel rope 4 and the friction roll 1, V
1With V
3Should equal and opposite in direction, direction is identical.Work as V
1With V
3When direction is opposite, if V
1﹥ 0, V
3﹥ 0, and then sliding rope monitored control system sends sliding rope alerting signal and information, and the prompting operating personal is made stopping and handled, if after 1 second, operating personal is not made stop processing or a
1>=0, then sliding rope monitored control system sends pressure control and control action signal to sliding rope special hydraulic station, and sliding rope special hydraulic station drives sliding rope dedicated brake 6, until a
2﹤ 0, V
3Till=0, this situation generally occurs in the initial sliding rope form attitude of overpull, and the sliding rope accident of this kind is avoided easily; Work as V
1With V
3When direction was identical, if △ V ﹥ 0, the then sliding monitored control system of restricting sent sliding rope alerting signal and information, reminds operating personal to make the processing of stopping, if after 1 second, operating personal is not made stopping and handled or a
1>=0, then sliding rope monitored control system sends pressure control and control action signal to sliding rope special hydraulic station, and sliding rope special hydraulic station drives sliding rope dedicated brake 6, until a
2﹤ 0, V
1=V
3Till; Work as V
1=0, V
3During ﹥ 0; Illustrate that friction roll 1 has been in the state of stopping the rotation, sliding rope monitored control system sends sliding rope alerting signal and information, and sliding simultaneously rope monitored control system sends pressure control and control action signal to sliding rope special hydraulic station; Sliding rope special hydraulic station drives sliding rope dedicated brake 6, makes a
2﹤ 0, until V
3Till=0.In the various braking schemes of above sliding rope brake equipment; Can not satisfy at the lifting container braking distance under the condition of pulleying, distance of overfall; For guarantee that friction type winder steel rope 4 lifting container 5 pulleying does not take place, crosses the accident of putting in braking procedure; Monitoring and control centre 22 real-time regulated of sliding rope monitored control system are slided the brake-pressure that the rope special hydraulic station drives sliding rope hydraulic brake 6, when sliding rope monitoring and control centre 22 according to lift stroke and V
3The track adjusting wheel 3 change of line speed rate a ﹥ 0.5m that calculate
2During/s, the pressure that then sliding rope special hydraulic station produces is to satisfy a
2=a is as the criterion; Satisfy not pulleying at the lifting container braking distance, cross and put under the condition of requirement, minimum for guaranteeing steel rope 4 degree of injury, when sliding rope monitoring and control centre 22 according to lift stroke and V
3The track adjusting wheel 3 change of line speed rate a≤0.5m that calculate
2During/s, the pressure that then sliding rope special hydraulic station produces is to satisfy a
2=0.5m
2/ s is as the criterion.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and protection domain are limited; Under the prerequisite that does not break away from design concept of the present invention; The relevant works technical personnel is made technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention.
Claims (6)
1. a friction type winder is slided rope braking scheme and device; It is characterized in that: sliding rope brake equipment is made up of sliding rope hydraulic brake, sliding rope special hydraulic station and sliding rope monitored control system, and sliding rope hydraulic brake is installed in the fixed location that steel ropes such as base plate or derrick pass through; Sliding rope special hydraulic station produces the adjustable hydraulic pressure of height by the control of sliding rope monitored control system, the sliding rope of bi-directional drive hydraulic brake; Sliding rope monitored control system is accomplished the judgement of sliding rope form attitude and is slided rope control of braking, warning function.
2. friction type winder according to claim 1 sliding rope braking scheme and device; It is characterized in that: described sliding rope hydraulic brake mainly contains sliding rope hydraulic brake cylinder body to be formed with sliding rope hydraulic brake friction lining, and sliding rope hydraulic brake cylinder body has two Telescopics; The sliding rope of glancing impact hydraulic brake is exerted pressure to steel rope through sliding rope hydraulic brake friction lining, produces friction force; Sliding rope hydraulic brake is through the sliding rope of retraction hydraulic brake friction lining and steel rope maintenance certain clearance during non-braking mode.
3. friction type winder according to claim 1 sliding rope braking scheme and device is characterized in that: described sliding rope special hydraulic station mainly contains blade-type pump, electrical motor, electric-hydraulic proportion regulator, pressure transformer and three position four-way electromagnetic valve and forms; The electric-hydraulic proportion regulator is controlled by sliding rope monitored control system, and according to wire rope deceleration degree and friction force size after sliding rope speed, lifting container stroke, the sliding rope braking, closed loop produces continuously controllable hydraulic pressure; The action behavior and the direction of the sliding rope of three position four-way electromagnetic valve control hydraulic brake; Pressure transformer is transformed to analog voltage signal with brake-pressure, feeds back to sliding rope monitored control system and calculates drag friction power size.
4. friction type winder according to claim 1 sliding rope braking scheme and device; It is characterized in that: described sliding rope monitored control system mainly is made up of Programmable Logic Controller monitoring and control centre, photoelectric encoder, touch screen human-computer interface, rotor switch, analog voltage signal, alarm bell etc.; Accomplish speed, the pressure and other parameters monitoring relevant with the sliding rope of friction type winder steel rope; Drive sliding rope hydraulic brake through the sliding rope of the back control special hydraulic station that calculates, converts and produce sliding rope braking action, slide the rope data simultaneously, state shows and report to the police.
5. friction type winder according to claim 1 sliding rope braking scheme and device is characterized in that: sliding rope takes place and has only brake wire just can avoid the lifting container pulleying, cross when putting accident in friction type winder, and sliding rope brake equipment is just started working; Sliding rope brake equipment produces the friction force of adjustable size, the steel rope that braking is slided automatically according to the size and the lifting container stroke of sliding rope speed; Can not satisfy at the lifting container braking distance under the condition of pulleying, distance of overfall, sliding rope brake equipment is a target with the lifting container stroke, produces required maximum frictional force; Can satisfy at the lifting container braking distance under the condition of pulleying, distance of overfall, sliding rope brake equipment is a target with the damage of steel cable minimum, produces required constant friction power.
6. based on the described friction type winder of claim 1 sliding rope braking scheme and device, it is characterized in that: sliding rope braking procedure both can be accomplished by sliding rope brake apparatus automated closed-loop, and also manually open loop is implemented; Slide the deceleration after rope Braking mode process is braked based on sliding rope speed, hoisting container stroke, sliding rope, the frictional force size after the sliding rope braking, the frictional force that system's automated closed-loop calculating should produce; The manual open loop braking procedure of sliding rope has operating personnel manually to apply control signal, and based on sliding rope speed, steel wire rope and friction roll relative sliding velocity, manually open loop applies the frictional force of variable size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140512A CN102303803A (en) | 2011-05-28 | 2011-05-28 | Sliding rope braking scheme and device for friction type hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110140512A CN102303803A (en) | 2011-05-28 | 2011-05-28 | Sliding rope braking scheme and device for friction type hoist |
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| Publication Number | Publication Date |
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| CN102303803A true CN102303803A (en) | 2012-01-04 |
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| CN201110140512A Pending CN102303803A (en) | 2011-05-28 | 2011-05-28 | Sliding rope braking scheme and device for friction type hoist |
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| CN104122198A (en) * | 2014-06-17 | 2014-10-29 | 中国矿业大学 | Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method |
| WO2014177494A1 (en) * | 2013-04-30 | 2014-11-06 | Inventio Ag | Hydraulic braking system |
| CN104627616A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Conveying device |
| WO2015177228A1 (en) * | 2014-05-20 | 2015-11-26 | Wittur Holding Gmbh | Hydraulic elevator car brake unit with controllable braking power |
| CN105217402A (en) * | 2015-11-09 | 2016-01-06 | 苏州博量传动设备有限公司 | Prevent brake equipment and the method for elevator accidental movement |
| CN105480810A (en) * | 2016-01-26 | 2016-04-13 | 森赫电梯股份有限公司 | Car upgoing overspeed protection system for elevator |
| CN107500173A (en) * | 2017-08-21 | 2017-12-22 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | A kind of devices of brake systems in lifting and friction type winder |
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| CN109179141A (en) * | 2018-11-27 | 2019-01-11 | 江苏安科中矿科技有限公司 | The anti-skidding clamping device of mine hoist |
| CN109374272A (en) * | 2018-10-10 | 2019-02-22 | 中国矿业大学 | The load-carrying properties detection device and method of vertical shaft hoisting main shaft device |
| CN110320265A (en) * | 2019-06-18 | 2019-10-11 | 枣庄学院 | A kind of steel wire rope of hoist fracture of wire checking test and its detection method |
| CN111532939A (en) * | 2020-04-30 | 2020-08-14 | 山西新富升机器制造有限公司 | Intelligent anti-skidding system for steel wire rope of friction hoist and control method |
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| CN112299200A (en) * | 2020-09-22 | 2021-02-02 | 苏州科达液压电梯有限公司 | Safety protection device and safety protection method for hydraulic elevator |
| CN113602944A (en) * | 2021-06-30 | 2021-11-05 | 洛阳智超机电科技有限公司 | Positive and negative force detection and safety braking control method for single-rope hoister system |
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| CN104627616A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Conveying device |
| CN106536395B (en) * | 2014-05-20 | 2019-09-20 | 维托控股有限公司 | Hydraulic elevator car brake unit with controllable brake force |
| WO2015177228A1 (en) * | 2014-05-20 | 2015-11-26 | Wittur Holding Gmbh | Hydraulic elevator car brake unit with controllable braking power |
| CN106536395A (en) * | 2014-05-20 | 2017-03-22 | 维托控股有限公司 | Hydraulic elevator car brake unit with controllable braking power |
| CN104122198A (en) * | 2014-06-17 | 2014-10-29 | 中国矿业大学 | Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method |
| CN104122198B (en) * | 2014-06-17 | 2016-03-23 | 中国矿业大学 | A kind of friction lining-hoisting cable dynamic friction transmission test device and method |
| CN105217402A (en) * | 2015-11-09 | 2016-01-06 | 苏州博量传动设备有限公司 | Prevent brake equipment and the method for elevator accidental movement |
| CN105480810A (en) * | 2016-01-26 | 2016-04-13 | 森赫电梯股份有限公司 | Car upgoing overspeed protection system for elevator |
| CN107500173A (en) * | 2017-08-21 | 2017-12-22 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | A kind of devices of brake systems in lifting and friction type winder |
| CN107500173B (en) * | 2017-08-21 | 2019-06-07 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | A kind of devices of brake systems in lifting and friction type winder |
| CN108996352A (en) * | 2018-01-16 | 2018-12-14 | 哈密市特种设备检验检测所 | A kind of elevator overload intelligent testing and warning system |
| CN108910646A (en) * | 2018-06-29 | 2018-11-30 | 洛阳点晶智控科技有限公司 | A kind of personnel in the pit's emergency gug method based on mine hoisting brake system |
| CN109374272A (en) * | 2018-10-10 | 2019-02-22 | 中国矿业大学 | The load-carrying properties detection device and method of vertical shaft hoisting main shaft device |
| CN109179141A (en) * | 2018-11-27 | 2019-01-11 | 江苏安科中矿科技有限公司 | The anti-skidding clamping device of mine hoist |
| CN110320265A (en) * | 2019-06-18 | 2019-10-11 | 枣庄学院 | A kind of steel wire rope of hoist fracture of wire checking test and its detection method |
| CN110320265B (en) * | 2019-06-18 | 2023-03-03 | 枣庄学院 | Detection experiment system and detection method for broken wire of steel wire rope of elevator |
| CN111532939A (en) * | 2020-04-30 | 2020-08-14 | 山西新富升机器制造有限公司 | Intelligent anti-skidding system for steel wire rope of friction hoist and control method |
| CN112265888A (en) * | 2020-09-10 | 2021-01-26 | 渠广波 | Rope brake suitable for pulley |
| CN112265888B (en) * | 2020-09-10 | 2022-05-13 | 淮北智行信息科技有限公司 | Rope brake suitable for pulley |
| CN112299200A (en) * | 2020-09-22 | 2021-02-02 | 苏州科达液压电梯有限公司 | Safety protection device and safety protection method for hydraulic elevator |
| CN113602944A (en) * | 2021-06-30 | 2021-11-05 | 洛阳智超机电科技有限公司 | Positive and negative force detection and safety braking control method for single-rope hoister system |
| CN113602944B (en) * | 2021-06-30 | 2023-06-30 | 洛阳智超机电科技有限公司 | Positive and negative force detection and safety braking control method for single-rope lifter system |
| CN113800368A (en) * | 2021-09-03 | 2021-12-17 | 安徽迅立达电梯有限公司 | Packing box traction device for fire-fighting large-tonnage elevator |
| WO2023104221A3 (en) * | 2021-12-09 | 2023-08-03 | 太原理工大学 | Rope replacement apparatus |
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Application publication date: 20120104 |