CN106536395A - Hydraulic elevator car brake unit with controllable braking power - Google Patents

Abstract

Elevator with an elevator car (4) moving along guide rails (2) up and down comprising an open or close loop controlled hydraulic brake for decelerating the elevator car (4), whereas the brake comprises a hydraulic actuator (11) for pressing a set of brake linings (16) in closing direction against a brake member, the hydraulic actuator (11) is pre-stressed by a main spring unit in closing direction with a force for generating a brake friction, whereas the hydraulic actuator (11) comprises a hydraulic cylinder (12) and a piston (13) dividing the cylinder (12) into a first working chamber (14) and a second working chamber (15), whereas the piston (13) depending on the hydraulic pressure prevalent in the first working chamber (14) completely or partly compensates the force of the main spring unit, where as the speed with which the brake applies, and/or the resulting force with which the brake linings (16) operated by the hydraulic actuator (11) is pressed against the rail (2) is open or close loop controlled by means of a hydraulic pressure source whose pressure side (D) charges aforementioned first working chamber (14) of the at least one piston (13) with hydraulic fluid, and whose suction side (S) is capable to suck hydraulic fluid from a second working chamber (15) of the at least one piston (13), whereas an additional pressure control line (39) interconnects the first working chamber (14) and the second working chamber (15), and whereas the actual flow rate of hydraulic fluid through the pressure control line (39) is determined by a control valve.

Description

Hydraulic elevator car brake unit with controllable brake force

Background technology

The various completely different embodiment of elevator car brake unit is known and is to realize elevator operation Various completely different purpose required for.

For a long time, elevator is only equipped with mechanically actuated formula elevator car brake unit, and which is in an overspeed situation by staying Speed limit rope behind lift car is activated.

In recent years, the demand of elevator car brake unit is being increased all the time.It is desirable to elevator car brake list Unit's not only only management and control emergency such as lift car hypervelocity or free falling.But also should be able to use as brake, so as to Reliability prevents the accident car motion of the lift car before bus stop in order to avoid leaving bus stop in advance, such as in the car of change Under the influence of load-carrying.

Therefore, mechanically actuated formula elevator car brake unit is gradually lain on the table Make formula elevator car brake unit.To the demand of these elevator car brake units also more and more higher.Recently, it is also desirable to this The elevator car brake unit of sample can in case of emergency tackle the adjustment of brake force itself, at least elevator car brake list Unit in operation should be as unremarkable as possible, and especially they because applying suddenly very much and/or " intervention " or can not apply Noise is sent in journey and row ladder comfortableness is interfered with.

Goal of the invention

It is an object of the present invention however that a kind of elevator with least one hydraulic elevator car brake unit is proposed, The effective opened loop control of the brake force applied by elevator car brake unit by its permission or closed loop control.

Inventive solution

The purpose is by the use of the elevator feature described in claim 1 and the corresponding lift car braking as independent protective theme Device unit is realizing.

According to the present invention, there is provided a kind of elevator with the lift car for preferably moving up and down along guide rail on vertical. In most cases, such lift car its own there are no the driving means that are merged in, but pass through at least one lift rope And/or hydraulic cylinder is raised.

The elevator of the present invention includes the open loop for the deceleration lift car especially under abnormal travel conditions such as overspeed situation Control or the liquid braking device of closed loop control.

The brake includes at least one hydraulic actuator that brake lining is acted on its piston rod.Word " is acted on " It is preferred that refer to " directly acting on ", but the broad sense of the word is suitable under specific circumstances.In this case, the word Refer to " by lever system indirect action in ".Only one of which brake rim or braking lining in a pair of brake rims or brake lining Piece may be just much of that by the direct start of piston rod.Piston rod passes through main spring unit on closing direction to produce drag friction Power is by pretension.Generally, the main spring unit produces the maximum drag friction for determining stopping power.If arranging multiple hydraulic actuations Device, then they are by the common maximum drag friction for producing and determining stopping power.

Piston rod is connected with piston, hydraulic pressure and possible root of the piston according to the first work intracavity being present in corresponding to piston The power of main spring unit is compensated wholly or in part according to the second work intracavity hydraulic pressure being present in corresponding to piston.

The speed and/or the final power being urged to by the brake lining of rod operable used by track that brake is applied is led to Hydraulic power source is crossed by opened loop control or closed loop control.Above-mentioned first working chamber on the pressure side at least one piston of pressure source Filling hydraulic fluid.The suction side of pressure source can be from the second working chamber pumping hydraulic fluid of at least one piston.

Finally, additional control pipeline is set, the first working chamber is connected by it with the second working chamber.Flow through the liquid of control pipeline The actual flow velocity of pressure fluid determines that by valve is controlled the control valve is preferably designed as remote-controlled valve.

The operation principle of control pipeline and the control valve for determining to flow through its actual flowing is as follows：

If control valve standard-sized sheet, the pressure that can occur between the first working chamber and the second working chamber are balanced.As a result, Hydraulic fluid can be drained into from the first working chamber by the second working chamber by the piston of at least one main spring unit pretension, so as to brake Device is applied.The appearance of such case is unrelated with following facts, i.e. pressure source may be being still tended to the (according to hydraulic pressure layout) Tend to synchronously siphon away (aspirate) hydraulic fluid from the second working chamber while one working chamber filling pressurized hydraulic fluid.Standard-sized sheet Control pipeline also will ensure pressure compensation related to this.

If control valve is fully closed, pressure compensation will not be proceeded through between the first working chamber and the second working chamber The pressure compensation of pipeline.Because pressure source is suctioned out from the second working chamber while pressurized hydraulic fluid is filled to the first working chamber The fact that hydraulic fluid (cannot realize the pressure compensation by pressure compensation pipeline), piston will be moved toward the second working chamber, directly Fully open position is reached to piston, so, brake is released.

Obviously, the pressure compensation degree between the first working chamber and the second working chamber can be by so operating the control By opened loop control or closed loop control, i.e. its both non-standard-sized sheet is not also fully closed, so as to its actual flowed friction determines applied braking for valve The size of power.

The preferred embodiment provided by dependent claims

One extremely preferred embodiment regulation, at least one valve is the switching valve for the operation of special on-off. Such valve is not proportioning valve.The characteristics of proportioning valve is it by making its valve element into the fixation between " fully closed " and " standard-sized sheet " Thus position simultaneously reserves the hydraulic pressure effective cross section corresponding to desired flow rate of regulation to control to flow through the flow velocity of hydraulic path.With It is that the valve element that it has cannot be using between " fully closed " and " standard-sized sheet " the characteristics of the above-mentioned valve of special on-off operation Fixed centre position, as long as being at least energized.(according to particular design) can be exactly " complete by only fixed position that valve element is adopted Close " position or " standard-sized sheet " position.

Through hydraulic path flow velocity by switching valve element between "ON" and " closing " back and forth controlling, it is this back and forth Switching preferably should be repeated in 1 second.It is desirable that switching frequency reaches 15 hertz or higher.

For special on-off operation valve be seat valve be favourable, if that is, valve is closed, the valve seat that valve has (fluid tight) valve element in sealing contact.

For the operation of special on-off valve preferably by pulsewidth modulation or frequency modulation(PFM) or its compound mode controlling.

There are two kinds different to complete the pattern for toggling：

First mode is so switching, i.e. valve element against its valve seat, is transported so as to valve element starts and reversely before handover It is dynamic.According to same way, the valve is before handover again against the backstop for limiting its " maximum open position ".Thus, the liquid of the valve How long how long pressure resistance can be controlled with the valve standard-sized sheet by determining that in each time interval the valve is fully closed.

Second mode is referred to as " trajectory " pattern：It is constantly present against before valve seat from making valve element a side in valve element Motion upwards is switched to the switching for making which move in the opposite direction.In the same fashion, valve is " maximum to open against which is limited Existed in switching again before the backstop of position ".Thus, " shock " number of times between valve element and valve seat and/or backstop is obvious Reduce, be to accumulate extremely favourable for the abrasion of contact area and/or fatigue.

The combining form of the first and second operational modes is feasible.

In any case, people can this valve be called " pulse " valve.This allows extremely dynamic when accurate management and control is needed Control, for example management and control may along the andfrictional conditions that guide rail changes in short distance when and/or management and control in lift car only on well Wire cable rupture when square several meters.One important advantage is that pulse valve obviously can more tolerate the solid particle of pollution hydraulic fluid, because Not slack in following positions for pulse valve (being different from guiding valve), the position forms little particle that can be entrained by hydraulic fluid The close gap of blocking.

According to another preferred implementation, the hydraulic system also has in addition to the Stress control pipeline with control valve There is the throttle pipe with throttling control valve that the noise abatement for liquid braking device among lift car stop layers or afterwards is applied Line, and/or the short-circuit pipeline with short valve quickly applied for brake in case of emergency, and/or for not opening Hydrodynamic press pump just discharges brake and starts the terraced brake discharge line with brake relief valve of new row with enable.

Above-mentioned choke flow line can realize the soft administration of brake, thus lift car stopped or will stop layers when Elevator car brake is applied in order to avoid avoiding sending audible noise when unexpectedly car is moved.It is comfortable that this mainly improves row ladder Property.When throttling control valve V3 is standard-sized sheet, choke flow line still shows flowed friction, and the flowed friction is more preferably greater than corresponding at which The flowed friction of control pipeline and/or short-circuit pipeline when valve is standard-sized sheet.

Quickly administration ensure that redundancy for brake to provide the additional short-circuit pipeline with short valve.If short valve is The valve opened when not being energized, becomes absolute failure safety in the system, and when an emergency happens, brake will be applied, Even if in the case of power control and/or battery failures.The best very little of flowed friction of short-circuit pipeline.Thus, hydraulic fluid can Another working chamber is drained into quickly from one of working chamber so that brake is applied as early as possible.

Additional brake discharge line with brake relief valve improves again takes comfortableness.

The brake discharge line will keep at least one cause of the actual closure of brake in brake relief valve start Dynamic device and accumulator or even do not apply at least one other brake actuator interconnection of braking maneuver this moment.It is possible thereby to send out The raw pressure between at least one active brake actuator and accumulator or at least one non-active brake actuator Compensation.It discharges the degree that active brake actuator can at least up to start new row ladder.Advantage is need not in this stage Operate hydraulic pump at least partly to discharge brake.Subsequently, once speed of elevator car movement is high to exceeding or hide by liquid The noise that press pump sends, then hydraulic pump be actuated to ensure complete brake release and/or be actuated to the accumulator or At least one other brake actuator feed flow of quiet brake release is involved.

The hydraulic pressure feeding unit preferably includes hydraulic pump or hydraulic generator, and which is at least in the opened loop control for performing the present invention Or by start during closed loop control method, and the speed of itself, torque or frequency or power consumption are not controlled.At other Wait, the hydraulic pump is preferably closed down completely.Here, the change of speed pump operation may be caused by the load state for changing, and led to Should not often there is extraneous speed to affect or control.This reduces expenditure compared with speed-variable pump.

One preferred embodiment regulation, hydraulic cylinder is the two-way function cylinder to form the first and second working chambers.These work Chamber is so interconnected, i.e., when the piston is moving, the hydraulic fluid of the same amount discharged from the first working chamber is by the second working chamber Receive.Such hydraulic cylinder can be referred to as " double-rod " cylinder or " round trip " cylinder.Such " double-rod " cylinder or " round trip " cylinder (have phase With piston-shank diameter) a remarkable advantage be that the amount of hydraulic fluid of the whole being discharged from a working chamber can be preferred Directly received by another working chamber.A part for the hydraulic fluid of discharge need not be drained into storage tank or storage tank and subsequently will again Which feeds hydraulic system from storage tank.According to the present invention, it is only necessary to for the short pipeline of hydraulic fluid, so as to improve opened loop control Or stability and the response of closed loop control.In addition, the natural aging process of hydraulic fluid is delayed by because of following facts, and not always The hydraulic system for discharging a part of hydraulic fluid to storage tank causes aerial oxygen, atmospheric humidity and perhaps less harmful solid Grain enters hydraulic fluid.This is important for elevator car brake that must be steady in a long-term.

Preferably, the elevator includes the elevator car brake with two or more hydraulic actuators, and at least One working chamber or the second working chamber have the in direct fluid communication in common rail form.There is provided the first working chamber in some cases First common rail of interconnection and the second common rail that the second working chamber is interconnected.In other cases, common rail can when valve cuts out quilt Valve is divided into two parts.This allows to limit two or two groups of actuators that can be operated independently of one another.

What another important alternative was done by, when beginning is sailed out of, elevator car brake is existed by savings Pressure in accumulator is opened, now hydraulic pump delay start.The hydraulic pump has preferably reached its normal row in lift car It is not activated before sail speed at least 50%.Further possibility is that and drive the pump with such speed, the speed according to Car actual travel speed increase in accelerator.This significantly improves driving comfort：In order to avoid unexpected car Motion, lift car are fixed by applying brake during stop layers.Open again in lift car in liquid braking device In the case of beginning to be switched on again by startup hydraulic pump before movement, the noise of even at a fairly low Modern hydraulic pump is also clear Clear audible and thus destroy the impression of comfortable traveling.Conversely, the hydraulic pump will be delayed by startup.Then, hydraulic pump is in elevator Car is not activated with producing before the speed that be enough to the driving noise for covering the sent out noise of hydraulic pump is moved again.

The brake is preferably included and is associated with least the two of at least one brake(-holder) block in the hydraulic actuator of initial specification It is individual, and one of them described hydraulic actuator is used as hydraulic accumulator in normal operation, the hydraulic accumulator does not operate liquid Press pump ground conveys the pressure opened required for elevator car brake when setting out and starting.It is provided with required for this operation of execution Corresponding valve.

The basis of this way is following tricks of the trade：It is administered to guide rail to stop the one of unexpected car motion to open to belong to First brake(-holder) block of the first brake(-holder) block of group, it is at least so that elevator cab movement can be started again at, another in second group of brake(-holder) block Second brake(-holder) block is moved toward guide rail so that not hindering the beginning.The motion of second brake(-holder) block causes to open the first braking Amount of hydraulic fluid movement required for piece.Even if need not, now can also along guide rail drag one in the brake(-holder) block or Two, but this is harmless.Once lift car obtains speed again, hydraulic pump is just activated and ensures now to withdraw completely/carry Rise the brake(-holder) block.

Its hydraulic cylinder is used as the brake rim that aforementioned second brake lining of accumulator is preferably belonging to additional brake, Additional brake is only in case of emergency administered to guide rail.Second brake lining is preferably avoided in the case non-emergent In the case of towing touch guide rail.Then, design and/or control should be selected to the hydraulic cylinder corresponding to the brake lining The brake lining move guidance rail can be prevented used also as the mode of pressure accumulators before which contacts guide rail.

If multiple actuators operate same brake rim, corresponding operating is feasible：Actual compressing brake rim Actuator be released on brake rim by being moved to other actuators do not reinstated.

Or, a hydraulic actuator can be set, which can be mutually similar with the hydraulic actuator of operation brake rim Type, the actuator is not associated with brake rim.The sole purpose of this actuator can be to form accumulator, and its conveying is such as The front amount of hydraulic fluid opened required for the first brake rim describedly.

The hydraulic elevator car brake for being used to carry out the inventive method preferably includes acceleration transducer, the acceleration The signal of sensor is used to control brake force, preferably so controls, i.e., it≤1g.

One preferred alternative is that elevator car brake includes several liquid for all acting on same brake lining Hydraulic actuator.According to the size of the current desired brake force wanted, an elevator car brake unit it is all of or individual other Actuator is by start.As such, it is possible to the brake force required for coordinating.

Another option is that, elevator car brake includes the several hydraulic actuations for acting on different brake lining Device.According to the size of the current desired brake force wanted, all of or individual other actuator of an elevator car brake unit By start.So, the brake force required for not only can coordinating.Major advantage is it is possible thereby to save one or more use completely In perform brake hard brake lining, while ensure these brake lining in normal elevator run duration before without undergoing Wear problem.

During the time ladder of lift car, pent simultaneously in hydraulic pump, one or more valves are so operated, That is, its full braking force or the brake force for preventing unexpected car motion required are applied and put to good use to elevator car brake.So, Lift car can be maintained on the terraced position of time and move and bring minimum energy consumption without the unexpected car of appearance or do not have Energy consumption.

The invention realized with claim described so far is independently, it is desirable to protect a kind of liquid with hydraulic actuator The opened loop control or closed loop control method of pressure elevator car brake, the hydraulic actuator have at least one piston rod, and which leads to Cross main spring unit (to provide this above by pretension for the power required for the brake force required for producing on closing direction Definition here be also suitable), and the piston rod is connected to piston, and piston is mended wholly or in part according to the hydraulic pressure for being born The power of main spring unit is repaid, be it is characterized in that, the final power on track is forced into by speed by the brake lining of rod operable Degree controls motor and/or direct torque motor and/or many quadrant operation motors by opened loop control or closed loop control, the motor conduct First alternative is according to actual needs or so that hydraulic pump delivering hydraulic fluid therefore reduction act on brake lining The mode of final power drives hydraulic pump, or as generator or brake motor brake fluid press pump in such a way, i.e., most It is good by the hydraulic fluid stream of closed loop control or opened loop control on the rightabout of its actual conveying direction back through by hydraulic pressure Fluid-operated hydraulic pump, thus increase acts on the final power of brake lining, and the motor is used as the second alternative Drive hydraulic pump, i.e. hydraulic pump or delivering hydraulic fluid according to actual needs as follows and therefore reduce and act on braking The final power of liner, or leakage current on the rightabout of its actual conveying direction back through hydraulic pump, therefore increase make For the final power of brake lining.

Envision as another replacement, according to the needs of elevator running operation conditions, the motor drives hydraulic pump so that hydraulic pressure Therefore pump or conveying oil simultaneously reduce the final power for acting on brake lining, or leakage current is on the rightabout of conveying direction Back through hydraulic pump, thus increase acts on the final power of brake lining.In order to produce such leakage current, motor keeps liquid Press pump stops may be just much of that.

Other operational modes of the present invention, advantage and designability are from by the embodiment described in accompanying drawing.

List of drawings

Fig. 1 is illustrated and is conceived for the first foundation for understanding the elevator of the present invention.

Fig. 2 is illustrated and is conceived for the second basis for understanding the elevator of the present invention.

Fig. 3 a are illustrated using independent two groups of actuators, different switch valves and the control valve for special on-off operation The hydraulic tube line chart of the first embodiment of car brake unit of the present invention.

Fig. 3 b are illustrated using independent two groups of actuators, the pump drive of speed variable but are grasped not used for special on-off The hydraulic tube line chart of the second embodiment of the car brake unit of the present invention of the control valve of work.Fig. 3 c are illustrated using only one group cause The 3rd embodiment of dynamic device, additional accumulator and the car brake unit of the present invention for controlling valve for special on-off operation Hydraulic tube line chart.

Fig. 3 d illustrate using two groups of actuators, different switch valves and for special on-off operation control valve this The hydraulic tube line chart of the fourth embodiment of bright car brake unit.

Fig. 3 e are illustrated and Fig. 3 d identical hydraulic tube line charts, and Fig. 3 e are illustrated through the flow direction of each hydraulic valve.

Fig. 3 f illustrate the slightly change of the hydraulic tube line chart according to Fig. 3 d, and valve V4 heres have been changed.

Fig. 3 g illustrate the slightly change of the hydraulic tube line chart according to Fig. 3 d, and valve V3 and V4 here as shown in Figure 3 d is combined Valve V34 is substituted.

Fig. 3 h are illustrated using only one group actuator, additional accumulator, different switch valves and the use arranged in a special way In the hydraulic tube line chart of the 7th embodiment of the car brake unit of the present invention of the control valve of special on-off operation.

Fig. 3 i illustrate the hydraulic pressure of the 8th embodiment of the of the present invention car brake unit closely related with the structure of Fig. 3 h Conduit line map, it is special which adopts the only one group actuator arranged in a special way, additional accumulator, different switch valves and two to be used for With the control valve of on-off operation.

Fig. 3 j are illustrated using two groups of actuators and are grasped for special on-off according to what specific form was arranged together with other valves The hydraulic tube line chart of the 9th embodiment of the car brake unit of the present invention of the control valve of work.

Fig. 3 k illustrate the hydraulic tube line chart of the tenth embodiment of the simplified modification based on the 9th embodiment.

If Fig. 3 L illustrate that for the opened loop control of one or more actuators 11 or the pressure source of closed loop control be not hydraulic pressure Pump 19 itself and can directly and adopt without intermediate means hydraulic pressure configuration principle.

Fig. 4 a illustrate the 11st reality using independent two groups of actuators, the pump drive of speed variable and several switch valves Apply the hydraulic tube line chart of example.

Fig. 4 b are illustrated based on the ultimate principle as the embodiment of Fig. 3 b and compared to the embodiment shown in Fig. 4 a The hydraulic tube line chart of the 12nd embodiment being simplified.

Fig. 5 illustrates an actively beneficial embodiment of the present invention with seeing obliquely from the front.

Fig. 6 illustrates the sectional view along A-A of the positive beneficial embodiment of the present invention shown in Fig. 5 with seeing obliquely from the front.

Preferred embodiment shown in the drawings

General preliminary comment

Herein for described elevator in the preferred embodiment framework make some it is general it is preliminary comment on, which is fitted For all of embodiment：

The elevator includes drive unit for lift 1 and the lift car 4 for being preferably designed to gearless, and lift car is along elevator Car guide rail 2 is directed 3 longitudinal guide of device, and its form typically in closing railway carriage or compartment room when travelling.

Elevator is preferably steel wire rope elevator, and which is maintained on many hoist cables, and hoist cable is not illustrated and passed through mostly by symbol The traction sheave driven by drive unit for lift is directed, and traction sheave is also had been not shown.

Therefrom, hoist cable directly or indirectly extends to counterweight, and counterweight can be in counterweight moving on rails, and counterweight here is not yet Illustrated by symbol.They are attached to counterweight or they bear the counterweight installed according to assembly pulley form.

Elevator of the invention preferably abandons so-called driving brake, or only for it is standby the reason for and adopt The latter.Related to this, " driving brake " is not the driving means regeneration operation for possible energy regenerating, but additional Mechanical brake, which typically acts on the braked wheel or brake disc being connected with drive shaft, for example to keep away when stop is stopped Exempt from unexpected car motion.

The elevator abandons traditional hypervelocity control device, its reality in the form of being fixed to the endless rope of lift car It is existing, therefore by its imperative operation, and the rope, by the control device operation that exceeds the speed limit, the hypervelocity control device is beyond certain speed When brake the rope, then produce mechanical force, the mechanical force starts lift car clamping device, then stops lift car.

Conversely, the elevator of the present invention is in most of the cases equipped with hoistway massaging device.Typically, the latter is by route benchmark 5 and displacement transducer 6 constitute, the route benchmark is fixedly mounted along travel route close to lift car 4, the displacement transducer quilt It is attached to lift car and interacts with route benchmark 5.In the case, hoistway information system can not only determine road, and Be on the contrary can with or preferred determine related velocity information and/or acceleration information.

Or, hoistway information system can also or additionally (standby) is made up of measurement apparatus, which passes through one or more The wheel rolled on track and/or guide rail collects the information with regard to route, speed and/or acceleration.

Again, alternatively or additionally, hoistway information system can be made up of contactless diastimeter, and which continues or close The current distance ordinatedly measured to reference to fixing point is cut, this is preferably placed in hoistway hole and/or hoistway head with reference to fixing point, and The information of route, speed and/or acceleration needed for thus collecting.Hoistway massaging device preferably passes through such as in hoistway hole extremely A few reference point measures absolute position.

First basic conception

Fig. 1 illustrates the function that can be used for the above-mentioned type elevator for realizing first embodiment of the invention.

In the case of the first conception, equipped with deadman's brake ESB, which is preferably by least two for elevator of the invention Electronic elevator car brake unit 7a, 7b composition, they are connected to lift car and act in different positions and lead Rail.Typically, each described elevator car brake unit of formation deadman's brake is so designed and can be by lift car Control device 10 is controlled, i.e. the application rate or power of its brake lining can be affected whereby.The control device of the lift car 10 can be the control device for being specific to brake, and which does not control the keying of other functions such as car door.In order to control which Its function, lift car can be equipped with another control devices realized with separate part form, and the device is not by Fig. 1 or Fig. 2 Illustrate.The control device for being only associated with brake can be by physical integration to brake unit.

As such, it is possible to improve row ladder comfortableness, such as because softer administration brake lining becomes after stop is stopped It is feasible, do not make a noise or almost do not make a noise.Alternatively, safety can also be improved, because it is contemplated that very Slower and thus more mildly startup braking in the case of rule row ladder.In order to realize deadman's brake ESB, it is preferred to use below will The elevator car brake unit more described in detail in the application framework.

In addition, elevator of the invention is equipped with electronic additional brake ESG, itself is preferably electronic by least two Additional brake unit 8a, 8b are constituted, and they are attached to the different parts of lift car and act on guide rail.Additional brake ESG is controlled also by the control device 10 of lift car.It is to be noted that the control device of lift car for the sake of complete 10 can be alternatively the control device for being only attached in and being possible to be integrated in car brake.Then, it can be by The referred to as control device 10 of elevator car brake.It is so designed that additional brake is probably favourable, i.e. with deadman's brake And its preferably variable response time is compared with response intensity, the response time of additional brake is always most short, and response intensity is total It is highest.The brake in traditional brake gear, safety tongs and progressive safety gear form can be adopted in the case Unit.But the brake force required for typically, they are not designed to individually not apply, and simply apply one part, and Needed for maximum, the remainder of brake force is applied by deadman's brake.Then, different from standard, the free falling situation of worst By deadman's brake and additional brake come co- controlling, so as to cause these brakes necessarily to interact.

It should be mentioned that the control of deadman's brake ESB and the control of additional brake ESG are preferably by above-mentioned elevator Car control device is completed, or brake described at least one of which can also be controlled by central elevator control gear and/ Or triggering.

In order to realize additional brake ESG, preferably such brake unit is also as described later in the application framework Inside be used, you can cascade operation and will be for realizing that the brake unit needed for deadman's brake is combined with additional brake Into the brake unit of single elevator car brake unit.

Preferably realize power distribution between deadman's brake ESB and additional brake ESG, with realize two brakes it One can apply at least the 40% of brake force, more preferably at least 45%, and the brake force is pacified in the case of lift car full and down Necessary to full control free falling, and supply 100% brake force part and applied by another brake.With regard to the two brakes Preferably not fully or it is substantially identical for, additional brake ESG is preferably capable of applying that of more a part of brake force Brake.

In order to realize the present invention and it may be advantageous that according to the teaching of the first conception, deadman's brake ESB and additional system Dynamic device ESG is attached to the different parts of lift car.Brake unit 8a, 8b of the additional brake ESG of strong reaction is excellent Choosing is attached in the lower half of lift car, ideally in the lower a quarter of lift car.The soft safety system of reaction Elevator car brake unit 7a, 7b of dynamic device ESB is preferably attached in the first half of lift car, ideally in elevator car In the upper a quarter in railway carriage or compartment.

As already described, the control device 10 of lift car can be set, and which is moved with lift car 4.Control device 10 is the above-mentioned type.Elevator control gear 9 of the control device 10 of lift car preferably with execution stairlift unit comprehensive management Communication.Even so, the control device 10 of lift car is typically also configured to its energy auto-action, i.e., perform automatically open loop Control or closed loop control.

Typically, the control device 10 or elevator car brake itself (brake unit itself) of lift car equipped with Emergency Power, even if thus under powering-off state, Emergency Power can at least keep additional brake ESG open and control it.

Typically, the control device 10 of already mentioned lift car is connect directly to hoistway information system, then continues Ground directly Jing central authorities elevator control gear 9 receive or Jing central authorities elevator control gear 9 receive with processing current route, speed and/ Or the information of acceleration, which can determine the current location of lift car and current motion state whereby.

The information of the route, speed and/or the acceleration that convey with hoistway information system and by which independently, lift car Control device 10 can be added including at least one, more preferably at least two acceleration transducers, and they individually produce acceleration Signal or the acceleration signal using the sensor being included in brake unit.It is so designed that brake is an option, It is that they can be by the acceleration signal of above-mentioned acceleration transducer by direct start.

As already described, to be preferably connected directly to ESB deadman's brake 7a, 7b and ESG attached for lift car control device 10 Plus brake 8a, 8b, with cause lift car control device 10 can be independent start deadman's brake ESB and (and if need Want additional brake ESG), do not involve central elevator control gear 9.

The control device 10 of lift car preferably includes the circuit of two independent roles, and one of them is considering hoistway information ESB deadman's brake 7a, 7b are controlled under system situation, another is considering the letter from least one coriolis acceleration sensor ESG additional brake 8a, 8b are controlled in the case of breath.

The control device 10 of lift car and deadman's brake ESB and additional brake ESG and (alternatively) central authorities electricity The combination of terraced control device, which is designed to realize at least one of following condition, more preferably several and preferably all：

Free falling：

It is if for example finding free falling and no power-off because there is abnormal acceleration signal, preferred to pacify Full application of brake device ESB and additional brake ESG are activated, so as to their common brakings.Hereby, the startup of deadman's brake ESB It is preferred that so carrying out, i.e., it at full throttle applies.Same situation is preferably adapted to additional brake ESG, as long as the latter is not It is configured to it always at full throttle to apply after its startup.

Hereby, deadman's brake ESB and additional brake ESG are designed to them and are assisted with the deceleration of 0.2g to 1g jointly Make to intercept the lift car for being furnished with rated load, and 1g can be can exceed that with the deceleration of sky lift car.

Typically, the startup of deadman's brake ESB is by by the signal conveyed by hoistway signaling system and by lift car At least one first circuits of brake are occurring.Starting for additional brake ESG can be additional by above-mentioned at least one Acceleration transducer or by elevator car brake control device at least one other independent circuits occurring.

If there is abnormal acceleration signal for example while in power-off and finding free falling, safety arrestment Device ESB is responded because of power-off, unless be based on by hoistway information system or at least one because high acceleration is crossed before it The signal conveyed by acceleration transducer is activated.Typically, occur inevitably to apply (close) peace under powering-off state Full application of brake device ESB, this is because maintaining it in the power of open position because power-off disappears.Additional brake ESG is different. It is connected to the Emergency Power for actually keeping which to open, so as to additional brake ESG itself is not still opened because of power-off It is dynamic, but preferably because described at least one additional acceleration transducer conveying shows the acceleration signal or electricity of free falling The control device of terraced car brake finds the car undermoderated by ESB.If Emergency Power also fails, additional brake Device ESG will be also applied because of power-off.

Here, the two brakes are designed to them again and can be furnished with specified with the cooperation interception of the deceleration of 0.2g to 1g The lift car of load, and 1g is can exceed that with the deceleration of sky lift car.

Promptly stop ladder：

For example because one of elevator shaft door be expert at during ladder open and without power-off promptly stop ladder in the case of, Deadman's brake ESB is started by safety return circuit, and additional brake keeps invalid.Deadman's brake is preferably at full throttle applied With.

Hereby, deadman's brake is preferably designed to the deceleration that it causes less than 1g with this startup, usually because Obtained by which, maximum deceleration degree is had an instinct for less than 1g.

Similarly, same situation is applied to the interference for promptly stopping ladder and power-off, and difference is deadman's brake by disconnected Electricity is activated, unless had responded to before safety return circuit.

Hypervelocity (tow strap)：

If for example because there is ultraspeed signal (in the case of may having the acceleration signal of non-critical at the same time) And detecting tow strap hypervelocity and no power-off, then deadman's brake ESB will be activated, and additional brake ESG is stayed open. The deadman's brake is preferably at full throttle applied.Hereby, deadman's brake is designed to it and applies the deceleration less than 1g.One As, the startup of deadman's brake occurs by the signal conveyed by hoistway information system.

Similarly, same situation is applied to the interference of tow strap hypervelocity and power-off, and difference is deadman's brake by disconnected Electricity is activated, unless responded before safety return circuit.

Stop is stopped：

Deadman's brake ESB is activated, and additional brake ESG is stayed open.

The startup of deadman's brake ESB is slowed down and is occurred, to realize applying before maximum braking force and/or retentivity is reached The speed of deadman's brake is reduced in order to not send disturbs people's noise.

If there is power-off at the place of stopping, deadman's brake ESB because power-off close completely (unless having this has been doned) and And closure is always maintained at during power-off.But additional brake ESG is stayed open.

Deadman's brake ESB always will be closed, if so as to lift car has pulled up the tram stopped, it Lift car is maintained at into certain position, no matter because here stops the loading and unloading and the current lift car weight that changes at place How.

So load and uninstall process after do not throw open but the opening deadman's brake ESB that slows down possibly has Profit, i.e., lift car is no declined several millis before actual row ladder is started under load that now may be heavier noticeablely Rice.The control device 10 of lift car is by respective design.

This moment, it is important that emphasize again that another invention (also requiring that independent protective) be so improve and design elevator and Its brake, i.e. when starting to sail out of, elevator car brake (being in most cases deadman's brake ESB) is by storage Pressure in accumulator is opened, and hydraulic pump delay start.This substantially improves row ladder comfortableness：Hydraulic pump will be in elevator Car be enough to not be activated before the speed for covering the traveling noise that hydraulic pump makes a noise is travelled to produce again.It is best for this Additional brake ESG is used as accumulator as the above is described in more detail.It is provided with the speed controlling for hydraulic pump Device is an advantage, and which allows to improve hydraulic pump speed according to the elevator car speed accelerated when new row ladder starts.This Sample, hydraulic pump are preferably controlled such, and its rotating speed and the noise that further which sends are with the actual speed of the lift car for leaving stop Spend and increase.

Wait ladder

If, in ladder is waited i.e. in its waiting position for next row ladder, deadman's brake ESB will for lift car Remain closed to reduce energy consumption.But additional brake ESG is stayed open and is kept stopping any reason to occur no matter Intervene during free falling at once.

Emergency terminal is slowed down

Deadman's brake ESB and its correspondence control device are preferably designed as deadman's brake and once have found lift car Minimum stop is close to too high speed for normally stopping ladder or highest stop is just closed.

Emergency relief

Deadman's brake ESB and its affiliated control device are preferably designed as automatic emergency occurring when pressing the button Rescue：When corresponding startup, deadman's brake ESB is partially opened, so as to lift car can be moved to the speed being limited it is attached Near stop, even without the motor power of the main weight-driven by car or counterweight.Motor here equipped with traction sheave behaviour Preferably it is shorted to produce braking moment during work.

Guard space in pit or hoistway head

Deadman's brake ESB and its corresponding control device are preferably designed as once finding that someone enters pit or well Trace header they ensured automatically the guard space in pit or hoistway head.

Second basic conception

Fig. 2 illustrates the function of the elevator of the above-mentioned type, and which can be used for realizing the second embodiment of the present invention.

In the case of this embodiment, according to the present invention equipped with deadman's brake ISB, it is by least one and best for elevator Two electronic elevator car brake unit 7'a, 7'b are constituted, and they are attached to the different parts of lift car and effect In guide rail.

Deadman's brake ISB can be so designed and control, i.e., its application rate can be affected, and its brake force Can be affected, be affected preferably by closed loop control.

Different from the first embodiment of the present invention, here is not provided with additional brake.Deadman's brake ISB is designed to It being capable of the independent all possible normal and abnormal operation conditions of management and control.

For this purpose, each described elevator car brake unit 7'a, 7'b is equipped with least one actuator, it is more preferably several Actuator, which is preferably made up of several piston-cylinder units, especially for acquisition partial redundance.

In addition, being typically provided Emergency Power, which gives deadman's brake ISB and in most cases to hoistway signaling system Energy supply.

It is that it is designed and configured to make the system provided by elevator car brake unit with regard to the special thing of this system Power can be by opened loop control and/or preferably by closed loop control.

Acceleration transducer 10a, the 10b of itself is preferably associated with each elevator car brake unit 7'a, 7'b, its letter Number it is the opened loop control of the brake force of corresponding elevator car brake unit 7'a, 7'b or the preferably basis of closed loop control. Corresponding acceleration transducer 10a, 10b are preferably integrated into and/or are connected to corresponding elevator car brake unit.It is preferable Ground, at the generation of control signal and/or adjustment signal for elevator car brake unit 7'a and/or 7'b and corresponding signal Reason also directly within corresponding elevator car brake unit and/or part occur.For this purpose, each elevator car brake list Unit is preferably designed to it and is worked in the self-sufficient mode of hydraulic pressure, i.e., each elevator car brake unit has the hydraulic pressure of itself Pump 19, the equalizing box of itself or pressure equalising vessel 20 and its hydraulic valve, pipeline and other hydraulic pressure for running a required complete set are aided in Facility.

Several elevator car brake units are connected with each other, and are preferably joined directly together, but at least through lift car The control device connection of brake.Then, its corresponding signal and/or action can be compared with each other to find in early stage Presumable failure.It is desirable that or even there is dual connection：Between several elevator car brake units, both existed and passed through The direct information of holding wire 10c is exchanged, and the collateral information that there is also the control device by elevator car brake is exchanged.

If it find that failure, then lift car will be stopped after next bus stop is reached.

The system is designed to realize at least one of following condition, more preferably several and preferably all.

Free falling：

If such as finding free falling because there is corresponding high acceleration signal, brake is applied simultaneously with prestissimo And preferably by such closed loop control, i.e. deceleration of the setting less than 1g, it is generally desirable to subtract in medium between 0.5g to 0.7g Velocity form.As it was previously stated, acceleration transducer 10a, 10b are assigned to each elevator car brake unit, its signal quilt For adjusting.Because there is closed loop control, therefore lift car is allocated which type of load is unimportant, required deceleration Always it is conditioned.

This is also suitable under powering-off state, as long as Emergency Power is powered correctly play a role.

If such as finding free falling because there is corresponding high acceleration signal and if total power-off (electric wire electricity also occur Stream interrupts and Emergency Power failure), deadman's brake ISB will make a response because of power-off, unless it is because crossing high acceleration And the information conveyed based on hoistway information system is started in advance.The latter keeps which generally because following facts will occur Power in an open position disappears because fully powered-off.

Promptly stop ladder：

In the case where for example promptly ladder is stopped because one of elevator door is opened during taking, safety arrestment Device ISB is started by safety return circuit.The preferred prestissimo of the deadman's brake is applied.Then, deadman's brake is preferably so closed Ring is controlled, i.e., it causes the deceleration less than 1g, it is generally desirable in the medium deceleration form between 0.5g to 0.7g.

Similarly, same situation (cuts off wire current and urgent electricity suitable for promptly stopping terraced and fully powered-off interference Fail in source), difference is exactly that deadman's brake is started by power-off, unless responded before safety return circuit.In the case, safety is made Dynamic device will produce maximum deceleration.

Hypervelocity (tow strap)：

If for example because there is ultraspeed signal (in the case of may having the acceleration signal of non-critical at the same time) It was found that tow strap hypervelocity, then deadman's brake will be activated.The deadman's brake preferably at full throttle apply and therefore preferably by So control, i.e. deceleration of the setting less than 1g, ideally in the medium deceleration form between 0.5g and 0.7g.

Stop is stopped：

Deadman's brake ISB is activated.

The startup of deadman's brake preferably passes through choke valve or passes through opened loop control or closed loop control generation, to realize safety The application rate of brake is affected by choke valve or opened loop control or closed loop control and/or is reduced and disturbed people and make an uproar so as not to produce Sound.This might mean that the deadman's brake is closed with all strength, but it had taken certain hour before it can obtain with all strength.

If had fully powered-off (wire current interrupt and Emergency Power failure) at the place of stopping, deadman's brake ISB because Power-off and close completely (unless this has been doning) and during power-off in remain closed.

The deadman's brake is always closed, if so as to lift car has pulled up the tram stopped, it Lift car is maintained on certain position, no matter because of the here place of stopping loading and the current weight of the lift car for unloading and changing Amount how.

This moment, it is important that emphasize again that another invention (also requiring that separately protected) be so improve and design elevator and its Brake, i.e. when beginning is sailed out of, elevator car brake ISB are opened by the pressure being stored in accumulator, and hydraulic pressure Pump delay start.It has been explained hereinbefore that details.

Emergency terminal is slowed down

Elevator car brake ISB and its correspondence control device are preferably designed as once finding lift car with for just For often stopping, too high speed is close to minimum or highest stop deadman's brake and just closes.

Emergency relief

Elevator car brake ISB and its corresponding control device are preferably designed as will be occurred when pressing the button certainly Dynamic emergency relief：When corresponding startup, elevator car brake ISB is partially opened, so as to lift car can be with limited speed Degree moves to neighbouring stop, even without the motor power of the weight-driven by mainly car or counterweight.Equipped with traction sheave Motor in this operating process be preferably shorted to produce braking moment.

Guard space in pit or hoistway head

Elevator car brake ISB and its control device are preferably designed as once finding that someone enters pit or hoistway Head they ensured automatically the guard space in pit or hoistway head.

The hydraulic principle of elevator car brake unit of the invention

First of all, it is necessary to provide the general information of the brake unit with regard to the present invention.

In theory, for only arranging in car brake unit of the present invention is just much of that.Thus it is also claimed to this.Electricity Terraced car is preferably equipped with the car brake unit of the present invention of at least two and different rail interactions.

First of all, it is necessary to provide some general informations with regard to the valve.

Referred to below as the valve of V1 is so-called short valve, and it blocks or disconnect and directly the first of hydraulic actuator works Chamber 14 and the so-called short-circuit pipeline of the interconnection of the second working chamber 15.The valve will need brake hard to terminate abnormal operating condition In the case of be opened.Valve V1 is used to make brake be changed into failure safe, this is because it ensures that quick brake is applied, i.e., Just other valves correctly do not work.

Unless otherwise defined, otherwise referred to below as the valve of V2 is so-called control valve, its opened loop control or closed loop control Moment brake force in braking procedure.Valve form of the valve of the V2 types preferably in so-called special on-off operation, such as institute before As explaining in detail.

Following is so-called throttling control valve as the valve that V3 is previously mentioned, and which is used to open or close choke flow line so as to electricity Terraced car applies liquid braking device while noise is reduced among the process that stop is stopped or afterwards.Throttling control valve itself can be produced Raw throttling action, and/or the throttling action required for choke flow line itself can be produced, as previously detailed.

Following is combination valve as the valve that V23 is previously mentioned, and which realizes the work(of the function of above-mentioned valve V2 and above-mentioned valve V3 simultaneously Energy.

Following is brake relief valve as the valve that V4 is previously mentioned, and which opens or closes brake discharge line so as to not Brake is discharged in the case of starting hydraulic pump at least partly to the degree that can start new row ladder.

Following is combination valve as the valve that V34 is previously mentioned, and which realizes the work(of the function of above-mentioned valve V3 and above-mentioned valve V4 simultaneously Energy.

Unless otherwise expressly provided, otherwise valve is proportioning valve, rather than the switching valve in meaning of the present invention.

Unless otherwise clearly notifying, otherwise all of valve is following valves, and which opens i.e. permission hydraulic fluid stream when power is off Cross.

In the accompanying drawings, this is represented that by spring part spring part is pressed on the valve element of activity.Principle is exactly, once no matter which kind of Reason cannot be reentried the power supply to valve, and valve is opened at once and simultaneously thus applies maximum braking force.

Fig. 3 a illustrate the hydraulic tube line chart of the car brake unit of the present invention that will be used in elevator required for protection.

Car brake unit includes first group of hydraulic actuator 11.1.1-11.1.x and second group of hydraulic actuator 11.2.1-11.2.x.Each described actuator includes the cylinder 12 with piston 13, and cylinder is divided into the first working chamber 14 and by piston Two working chambers 15.In addition, each described actuator includes piston rod 31 and the spring part 17 for acting on brake lining 16, spring part It is that the main spring unit that brake force needed for producing is responsible for is a part of, even if in the case of hydraulic failure.

With regard to brake lining 16, it is necessary to notify herein below with being generally adapted for all embodiments：

Each at least two actuators can act on (oppress) single brake lining or shared brake lining.

As can be seen, all first working chambers 14 of actuator 11.1.1-11.1.x are in direct hydraulic communication In, they connect along a hydraulic loop 114.In addition, all of second working chamber 15 of actuator 11.1.1-11.1.x is in Directly in hydraulic communication, connect along the hydraulic loop 115 for forming " common rail ".If valve V4 is to open, all existing hydraulic pressure First working chamber 14 of actuator is connected as all second working chambers 15.

The hydraulic pump and control valve V23 are in place in 14 front upstream of working chamber.Adopt to place here and in the application Term " upstream " be related to the pumping direction of the hydraulic pump 19 when single quadrant runs.It means that the on the pressure side D of pump 19 is The upstream of one working chamber 14, suction side S of pump 19 is in the downstream of the second working chamber 15.

Downstreams of the short valve V1 after working chamber 14 is in place.Only valve V4 positioned at two function identical working chambers it Between, it is between two the first working chambers 14 in that particular case.

It is assumed that normal condition, hydraulic pump is under single quadrant ruuning situation in continuous deceleration lift car into stopped process It is operated without speed controlling, Power Control, Torque Control or FREQUENCY CONTROL.The on the pressure side D supplies first of hydraulic pump 19 work Chamber 14, and suction side S of hydraulic pump 19 is connected to the second working chamber 15, so as to it can suction out hydraulic fluid therefrom.It is provided with list It is used to ensure when pump is closed down and when valve V23 is closed not through the hydraulic fluid return of pump 19 to valve CV.

Control pipeline 39 is provided with, which is by the hydraulic loop 115 of the second working chamber 15 and the hydraulic loop of the first working chamber 14 114 are joined directly together.Control pipeline 39 is operated by controlling valve V23.

When hydraulic pump 19 is when the valve V23 delivering hydraulic fluid in the case of fully closed all the time is controlled, brake will be fast Rapid release is put, because hydraulic pump extracts hydraulic fluid out from the second working chamber 15, is pumped into the first working chamber 14, if valve V4 is to close This for closing occurs in hydraulic actuator 11.1.1-11.1.x, and in all hydraulic actuator if valve 4 is opened 11.1.1-11.2.x occur.

If control valve V23 is shown in a fully open operation all the time, pipeline 39 is controlled by the hydraulic loop 115 of the second working chamber 15 It is short-circuit with the hydraulic loop 114 of the first working chamber 14, so as to brake quickly will be applied, because hydraulic fluid will be from the first work Chamber 14 is discharged to the second working chamber 15.The lasting pump-absorb action of hydraulic pump 19 will be kept in the case to no effect, because hydraulic pressure Pump is also shorted.

In consideration of it, the amount of hydraulic fluid for flowing into the second working chamber 15 from the first working chamber 14 obviously can be by corresponding adjustment The moment flowed friction of control valve V23 is controlling.As explained abovely, " open degree " of valve V23 can be by being associated with valve V23's Controller remote control, the movable frequency such as by adjusting valve element.

As described above, valve V23 can realize throttling action, slow braking among being accordingly provided in stop layers process or afterwards Device is applied.Thus one, unexpected car motion can not be avoided with making a noise.

As can be seen, add and be provided with short-circuit pipeline 40, the hydraulic loop 114 and second of the first working chamber 14 is worked by it The hydraulic loop 115 in chamber 15 is joined directly together.Short-circuit pipeline 40 is shorted valve V1 operations.In an emergency braking situation, valve V1 and Valve V23 is opened, to produce the braking action of hydraulic actuator 11.2.1-11.2.x as early as possible.Even if all of other valves should Obturation, valve V1 also brake actuator 11.2.1-11.2.x.Generally, all valves are opened to realize brake hard, so as to hydraulic pressure Fluid can be entered the second working chamber 15 as early as possible from the first working chamber 14.

Valve V4 has several functions.

First, valve V4 can realize start actuator 11.1.1-11.1.x and 11.2.1-11.2.x independently of each other.This Sample, can realize above-mentioned conception " ESB and independent ESG " with these brake units.As long as valve V4 is remained turned-off, ESB functions are realized by actuator 11.1.1-11.1.x only then.When the additional openings of valve V4 and/or valve V1, actuator 11.2.1-11.2.x ESG functions are performed.

In addition, valve V4 can when car prepares to start new row ladder release actuator 11.1.1-11.1.x, and hydraulic pump 19 Still it is closing down in order to avoid sending the noise that can be heard, now lift car is still in stop.

For this purpose, valve V4 is opened, so as to through loop 114,115 will occur in actuator 11.1.1-11.1.x and 11.2.1-11.2.x the first working chamber and the second working chamber between pressure compensation.As a result, actuator 11.2.1-11.2.x Part closes, part release actuator 11.1.1-11.1.x.Now, brake force at least reduces to following degree, i.e. lift car Energy starts new row ladder, but without the startup hydraulic pump 19 during lift car is stopped at stop.

Hydraulic pump 19 will be activated after new row ladder has started to, preferably not lift car traveling noise at least with hydraulic pressure Before the noise sent by pump is equally big, thus hydraulic pump noise does not affect row ladder comfortableness.

Valve V4 preferably ensures that actuator 11.1.1-11.1.x is connected with the throttling hydraulic pressure of actuator 11.2.1-11.2.x.This Sample, the pressure compensation between the actuator group will not occur when valve V4 is opened suddenly and audibly, but sluggish Without sending acoustic impluse.

Fig. 3 b illustrate will used in as shown in Figure 3 a and closely related wanted of car brake unit as explained above Seek the hydraulic tube line chart of the car brake unit of the present invention in the elevator of protection.

The all situations explained before are also applied for the embodiment according to Fig. 3 b, if the difference subsequently explained without for fear of This.

Embodiment according to Fig. 3 b is that check valve CV is omitted and valve V23 exists with unique difference of the embodiment according to Fig. 3 a Functionally it is divided into valve V2, V3.

This allows the hydraulic pump to operate under dual quadrant operation, it is such as following be explained in detail when Fig. 4 a and 4b is discussed that Sample：Moment hydraulic pressure in first and second working chambers 14,15 is by the conveying direction or antiport hydraulic pump is used as hydraulic pressure Generator or for hydraulic fluid flowing decelerator by opened loop control or closed loop control.In that particular case, valve V2 is preferred It is not intended to the valve of special on-off operation.Its unique function be prevent Jing hydraulic pumps, cause first and second working chamber it Between undesirable pressure leak on a small quantity in a balanced way, such as when the long period waits ladder to lift car during overnight.

Valve V3 is not made a noise at stop for brake as explained abovely, and ground is slow to be applied.

Fig. 3 c illustrate will be used in elevator required for protection in, compared to what is changed according to the embodiment of Fig. 3 a The hydraulic tube line chart of car brake unit of the present invention.

This embodiment is only with one group of hydraulic actuator 11.1.1-11.1.x and additional accumulator 111.Preferably, pressure accumulation Device 111 with the structure as actuator 11.1.1 etc., except for the facts that, the piston rod 31 of accumulator is not attached to braking Piece.Advantage of this is that, even if the piston rod of accumulator 31 is drained so as to release actuator 11.1.1- in the first working chamber Move when 11.1.x, this is contacted without result in the towing between the brake(-holder) block and braking rail corresponding to its piston rod.

With regard to a working chamber and preferably the second working chamber 15, all actuator 11.1.1-11.1.x and accumulator are forever Long in directly hydraulically interconnected.That is, including their the second working chamber including the second working chamber of actuator along A hydraulic loop 115 for forming the permanent common rail for these hydraulic chambers is connected.

With regard to another working chamber and preferably the first working chamber 14, all actuator 11.1.1-11.1.x are in direct In hydraulically interconnected.That is, the first working chamber 14 is connected along a hydraulic loop 114.If valve V4 is to open, pressure accumulation Device 111 is also connected to hydraulic loop 114 with its first working chamber.Otherwise, accumulator 111 is switched off.

Hydraulic pump 19 is provided with, it is by the downstream of the upstream end (pump is on the pressure side) of hydraulic loop 114 and hydraulic loop 115 (suction side of pump) is joined directly together.Pump is single quadrant operation, as explained above.Furthermore it is possible to arrange pressure equalising vessel 20.

Because this design, all actuator 11.1.1-11.1.x can only be by synchronous start.That is, single this elevator Car brake cannot be used to realize ESB and ESG as mentioned above.Conversely, this elevator car brake is set as mentioned above Put and run for ISB.

Different from shown in Fig. 3 a, valve V1 and V3 here and are not disposed on the end of hydraulic loop 114,115.Conversely, will Hydraulic loop that valve V1-V3 and hydraulic loop 114 and 115 are connected or hydraulic line between two adjacent hydraulic actuators Hydraulic loop 114,115 central fascicles are out.This means that this embodiment has more than one control hydraulic line or loop Valve, the hydraulic line or loop are branched off between two neighboring function identical working chamber.In this embodiment, so Valve be at least valve V2, V3.The control pipeline 39 of valve V2 is from two the first working chambers 14 (one in upstream and one in downstream) Between hydraulic loop 114 be branched off and between two the second working chambers 15 (upstream and in downstream) Hydraulic loop 115 is branched off.The choke flow line 41 controlled by valve V3 is arranged according to control 39 identical principle of pipeline.

This can realize each function of being separated from each other valve completely.Therefore, it is possible to ground entirely independent of each other valve design V2, V3 And V4.

Another advantage of this hydraulic Design is the fact that, need not be to any during lift car is stopped at before stop Valve energy supply.Even so, also can be to obtain complete brake force.

Especially brake can be applied with not making a noise by choke valve V3 before stop.

Hydraulic pump is not run can discharge the brake when lift car is just starting another row ladder.For this purpose, valve V4 will It is opened.So, a part of hydraulic fluid of the savings in the first working chamber 14 of accumulator 111 will be forced into actuator 11.1.1-11.1.x the first working chamber, so as to these actuators can at least be released to the degree of the row ladder that can start new.

The opened loop control of the brake force that moment applies or closed loop control as explained above can be by being designed for specially Realized with the valve V2 of on-off operation.

Fig. 3 d illustrate the hydraulic pressure of the car brake unit of the another kind present invention that will be used in elevator required for protection Conduit line map.

Hydraulic pressure car brake unit includes one group of hydraulic actuator 11.1.1-11.1.x and another group of hydraulic actuator 11.2.1-11.2.x, as explained with regard to Fig. 3 c before.

With regard to a hydraulic chamber and preferably the second hydraulic chamber 15, all actuator 11.1.1-11.2.x are again It is secondary in directly hydraulically interconnected.That is, all of working chamber 15 is along the 115 permanent string of a hydraulic loop for forming common rail Connection.

With regard to another working chamber and preferably the first working chamber 14, these actuators are divided into two groups by valve V4：As long as should Valve V4 is closed, and just has one group of actuator 11.1.1-11.1.x to have working chamber (such as chamber for being permanently in direct hydraulic communication 14), also another group actuator 11.2.1-11.2.x, wherein such working chamber is also permanently in direct hydraulic communication.

Hydraulic pump 19 is provided with, which is by the downstream of the upstream end (pump pressure side) of hydraulic loop 114 and hydraulic loop 115 (pump suction side) is joined directly together.Pump is described above as single quadrant operation.In addition, pressure equalisation container 20 can be provided with.

The also another loop in 41 form of choke flow line, it is by the upstream end of hydraulic loop 114 and hydraulic loop 115 Downstream is connected.Choke flow line 41 is opened or is turned off by valve V3.The opening of valve V3 is allowed by first group of actuator 1.1.1- The soft administration of the brake(-holder) block for 11.1.x operating, and do not send the noise that can be heard or the reduction that makes a noise.Therefore reason, valve V3 applies restriction effect or with restriction effect control loop.

The valve V2 and V1 itself being arranged in parallel is located at hydraulic loop, and hydraulic loop is directly by second group of actuator 11.2.1- The downstream of 14 Jing hydraulic loops 114 of the first working chamber 11.2.x is connected with the upstream end of hydraulic loop 115.

In order to prevent the unexpected car motion during stop layers, only one group actuator by start, here it be described Group 11.1.1-11.1.x.This group of actuator is produced braking so as to by opening the valve V3 for controlling choke flow line 41 dynamic by start Make.Through the choke flow line 41, hydraulic fluid can from first working chamber 14 of actuator 11.1.1-11.1.x be discharged into its Two working chambers 15.

In order to discharge brake with not running hydraulic pump when lift car to be ready starting another row ladder, valve V4 will be beaten Open.So, savings will be forced in a part of hydraulic fluid in first working chamber 14 of second group of actuator 11.2.1-11.2.x First working chamber 14 of first group of actuator 11.1.1-11.1.x is pressed into, can be started so as to these actuators are at least released to The degree of new row ladder.

In order to perform the lift car automatic brake of opened loop control or closed loop control, valve V2 opened loop controls or closed loop control by The brake force that actuator 11.1.1-11.2.x is produced.Hydraulic pump delivering hydraulic fluid into actuator 11.1.1-11.1.x the One working chamber 14, and Jing loops 118,119 and check valve CV2 flow to first working chamber 14 of actuator 11.2.1-11.2.x, And now hydraulic fluid is extracted from 15 Jing loops 115 (common rail) of all second working chambers by pump.The actual liquid of control valve V2 Pressure resistance is lower, and the actual pressure of the first work intracavity is lower, and actual braking force will be higher.

Because this particular topology, it is impossible to realize the execution of ESB/ESG operations as above with practical degree of correlation.

Check valve CV2 allows this group of actuator 11.2.1-11.2.x of filling, and this is used to not run 19 ground of hydraulic pump before Open brake：If pressure fluid to be conveyed into the pump upstream end of hydraulic loop 114, the fluid can be with Jing check valve CV2 Reach the working chamber 14 of actuator 11.2.1-11.2.x.

Check valve CV1 prevents the dangerous leakage meeting Jing hydraulic pumps when hydraulic pump stops from flowing to ring from the upstream end of loop 114 The downstream on road 115.

The not shown single embodiments of Fig. 3 e.Conversely, the embodiment shown in Fig. 3 e is identical with the embodiment shown in Fig. 3 d.Figure 3e is served only for alloing visible by the corresponding arrow in valve member picture through the hydraulic flow direction of valve.Can so see Entered with the hydraulic fluid for being channeled out the valve using common hydraulic loop to valve V1 and V2 and connect all of second in order The hydraulic loop 115 of working chamber 15.

Can thus see that the flow of pressurized for flowing through valve V4 is two-way.Then, it can be seen that flow through valve V3 (when opening) Flow of pressurized be guided to hydraulic loop 115 from hydraulic loop 114.

Fig. 3 f illustrate the embodiment being slightly different compared to Fig. 3 e, and the two embodiments are closely related.Therefore reason, for All things that embodiment 3d and 3e are explained are correspondingly suitable for use in the embodiment according to Fig. 3 f.

Above-mentioned Fig. 3 d and 3e can be relatively seen with valve V4 with unique difference of the embodiment according to Fig. 3 f.According to figure In the embodiment of 3f, valve V4 is designed to it and closes in non-energy supply, and in above-mentioned other embodiments, valve V4 is in non-energy supply When open.This design is changed for energy-conservation, if lift car is just being waited before stop.

Fig. 3 g illustrate will be used in elevator required for protection in brake list before by shown in Fig. 3 d, 3e and 3f The hydraulic tube line chart of the brake unit of the closely related present invention of unit.Therefore reason, above in relation to the thing explained by these figures Feelings here is accordingly suitable for.

Unique difference is that valve V3 and V4 merge now.The two valves be combined valve V34 replacement.This replacement can be smooth Realize, because the valve V4 and V3 that are adopted before must always inverted runnings, that is, if valve V3 is turned off, valve V4 is Open, or vice versa.

In order to explain this point, people must be imagined when what lift car there occurs when stop stops. This moment, valve V34 is so switched, i.e., it completes the hydraulic function for originally being performed by valve V3.

In order to complete the function of previous valve V3, valve V34 is so switched, i.e., it directly will be in actuator by throttling passage 11.1.x the hydraulic loop 114 in downstream is connected with hydraulic loop 115, and the hydraulic loop 115 is formed for the second working chamber 15 Above-mentioned " common rail ", as Fig. 3 g directly shown in.So, hydraulic fluid can be from first work of hydraulic actuator 11.1.1-11.1.x Make the second working chamber 15 that chamber 14 is discharged into hydraulic actuator 11.1.1-11.1.x.As a result, these hydraulic actuators do not send and make an uproar Sound ground closes (because throttling) and produces the braking maneuver for preventing unexpected car motion.

Once lift car starts new row ladder, valve V34 is handed off its another operating position.In this position (as schemed 3g is used as shown in action position or energization position) on, the working chamber 14 of actuator 11.2.1-11.2.x and hydraulic pressure are caused by valve V34 The working chamber 14 of dynamic device 11.1.1-11.1.x is connected, so as to all working chamber 14 of all actuators is now by continuous " common rail " of 114 form of loop is connected.So, a part of the savings in the work intracavity of hydraulic actuator 11.2.1-11.2.x Hydraulic fluid can be discharged into the working chamber 14 of hydraulic actuator 11.1.1-11.1.x, and the hydraulic actuator is in this stage 19 ground of hydraulic pump is not operated at least to be discharged into the degree of the row ladder for allowing to start new.That is, reached again in lift car To before be enough to produce traveling noise so that noise that hydraulic pump 19 sends no longer disturbs the speed of people, hydraulic pump 19 will not be opened It is dynamic.

One advantage of this hydraulic pressure layout by combination valve V34 can be to save an independent valve, it reduce into This.

Have the disadvantage, " pressure loss " will occur when valve V34 just switches between two position to a certain extent, because It is that, in handoff procedure, hydraulic pressure short circuit occurs within a very short time.This shortcoming can be by being mended with guiding valve form design valve V34 Repay.But guiding valve is sensitive to dust and generally also shows that here disturbs certain internal leakage of people.

Fig. 3 h illustrate another embodiment of the car brake unit of the present invention that will be used in elevator required for protection Hydraulic tube line chart.

One actuator 11.1.1 is only shown in this figure.But this embodiment is not limited to using an actuator.Phase Instead, one group of actuator 11.1.1-11.1.x can be used.Uniquely thing to be done be exactly by the loop 114 realized with common rail form, The all working chamber 14 of these actuators is connected by 115 with all working chamber 15.

In this embodiment, the downstream below the working chamber 14 is provided with valve V1, V2 and V3.These valves are in hydraulic parallel mode Arrangement.The common loop 116 of the suction side for being directly communicated to hydraulic pump 19 is passed through including the loop in parallel of these valves.

Upstream in the hydraulic loop 114 of the first working chamber 14 of actuator is led to is provided with valve V4.The input side of valve V4 With being on the pressure side connected for hydraulic pump 19.

Here, special thing is exactly accumulator 111, it directly with the suction side of hydraulic pump 19 and with hydraulic pump 19 On the pressure side it is connected.

The very special design of another kind as used herein is connection loop 117, and its offer is from loop 116 to hydraulic actuation The direct path of the second working chamber 15 of device.

Valve V2 is used for the opened loop control of brake force or closed loop control in an emergency braking situation.In brake hard situation Under, valve V4 is energized, so as to it fully opens the hydraulic loop including valve V4.In an emergency braking situation, hydraulic pump is all the time such as Mode described in detail above is operated.Keep firmly in mind in this, it is clear that the actual hydraulic pressure resistance of control valve V2 is (according to performed by reality Handover operation) determine that (which passes through valve V2 and liquid by first working chamber 14 that is on the pressure side forced into of hydraulic pump 19 for how many Pressure ring road 116 is directly connected with the suction side of hydraulic pump 19) hydraulic fluid return to hydraulic pump suction side.

Fully closed valve V2 clearly results in the maximum speed of release brake, because being pressed into the first work by hydraulic pump 19 All pressurized hydraulic fluids in chamber 14 make hydraulic actuator piston shift to the second working chamber 15.

On the other hand, it is clear that the valve V2 of standard-sized sheet by the first working chamber 14 produce hydraulic pump 19 on the pressure side with its suction Direct short-circuit between side.It allows for hydraulic fluid to be discharged to the second work from 14 Jing hydraulic loops 116,117 of the first working chamber Make chamber 15, so act on brake.

Valve V3 controls throttling passage or is throttled in itself.As explained above, valve V3 is for the braking when stop is stopped Device is quiet to be applied to avoid unexpected car motion.

Here allow people it is interested be some valve V4.If when stop is stopped, the hydraulic pump is closed down, brake Release is to be completed by accumulator 111 and valve V4 to start again at new row ladder.Valve V4 is opened.So, accumulator is by section Hydraulic fluid is entered stream valve 21 first working chamber 14 of hydraulic actuator 11.1.1 from 14 Jing valve V4 of its first working chamber. Increase pressure in one working chamber 14 is led hydraulic fluid and is discharged from second working chamber 15 of hydraulic actuator 11.1.1.So, make Dynamic device is released to the degree of the row ladder that can at least start new.

Once elevator car speed be enough to the noise for covering hydraulic pump 19, hydraulic pump 19 is by energy supply again.It can be first Ensure that brake discharges completely.Subsequently, valve V4 can be closed.Even so, hydraulic pump 19 remains to refill accumulator 111, Because accumulator also as described directly with hydraulic pump 19 on the pressure side and suction side is connected.

Fig. 3 i illustrate the embodiment being slightly different compared to Fig. 3 h.Even so, the two embodiments are still closely related.Cause This reason, is correspondingly suitable for use in the embodiment according to Fig. 3 i for all these things that embodiment 3h is explained.

Unique difference between embodiment according to Fig. 3 i and the embodiment according to Fig. 3 h is that choke valve 21 saves.It is this It is possible to save, because valve V4 has also been changed to valve V5.Valve V5 can be controlled as valve V2.That is, valve V5 with Valve V2 is identical, or it at least according to valve V2 identicals principle work.

Valve V5 is used for opened loop control or the closed loop control of brake force together with valve V2 in an emergency braking situation.Urgent Under brake condition, valve V5 is energized, so as to the actual hydraulic pressure resistance for controlling valve V5 determines that how many hydraulic fluid passes through pressure Side (the first working chamber 14 of accumulator 111 and/or hydraulic pump 19 are on the pressure side) is pressed into the first working chamber of hydraulic actuator 14 and the brake is thus discharged, because entering the first working chamber 14 by the hydraulic pressure side pressure of hydraulic accumulator 111 (or pump) All pressurized hydraulic fluids make hydraulic actuator piston shift to the second working chamber 15.

Because for the thing that all actuators of this embodiment are connected by the loop 114,115 realized with common rail form Real, this embodiment cannot be used for realizing the ESB/ESG in above-mentioned meaning.

Due to identical reason, it is impossible to realize one group of actuator of start and another group of additional actuator of subsequent start first Cascade operation.

One advantage of this embodiment is need not be to valve energy supply when stop waits ladder when lift car.

Another advantage is that hydraulic accumulator 111 can be independently filled with the work of the actuator being responsible for braking.

Finally, important function be it is completely self-contained, thus important part such as valve V2 and V3 can by each other entirely without Close ground design.

These advantages are also applied for the situation shown in Fig. 3 h.

Deviation：

Understand best but not necessarily in opened loop control or closed as Fig. 3 h and solution as shown in figure 3i are represented Hydraulic pump is itself served as into pressure source in the braking procedure of ring control.Conversely, accumulator 111 can convey opened loop control or closed loop control Hydraulic pressure required for system ground compressing brake lining to its corresponding track.

Fig. 3 j illustrate another embodiment of the car brake unit of the present invention that will be used in elevator required for protection Hydraulic tube line chart.

Hydraulic pressure car brake unit includes that first group of hydraulic actuator 11.1.1-11.1.x and second group of hydraulic pressure are caused again Dynamic device 11.2.x, now x can be 1 or the value between 1 and n.

As explained abovely, a chamber of these hydraulic actuators and preferably the second working chamber 15 is by forming common rail Hydraulic loop 115 is in direct hydraulic communication.

With regard to another working chamber and preferably the first working chamber 14, at only first group hydraulic actuator 11.1.1-11.1.x In direct hydraulic communication, and another or another group of hydraulic actuator 11.2.x are not in permanent directly hydraulic pressure with regard to working chamber 14 In connection.

The characteristics of this embodiment, is the fact that its all of valve is together with the hydraulic pump located at the first working chamber upstream Arrangement.

The on the pressure side D of hydraulic pump 19 is also connected to the first working chamber in first group of actuator 11.1.1-11.1.x Upstream loop 114.On the other hand, the suction side of hydraulic pump 19 is directly connected to be formed for all actuator 11.1.1- 11.1.x the hydraulic loop 115 with the common rail of 11.2.x.So, valve V2 allows opened loop control or closed loop control ground by first group of cause Dynamic device 11.1.1-11.1.x applies brake force.If valve V2 is fully closed, 19 full power of hydraulic pump is caused to first group of hydraulic pressure First working chamber 14 of dynamic device pressurizes.At the same time, maximum is reached from the suction of the second working chamber 15 by 19 Jing loops 115 of hydraulic pump Degree.That is, hydraulic actuator is at full throttle released.

On the other hand, if valve V2 is standard-sized sheet, hydraulic pump 19 by dead short, so as to it cannot affect first group of liquid Hydraulic actuator 11.1.1-11.1.x.Conversely, the first working chamber 14 of first group of hydraulic actuator and first group of hydraulic pressure First working chamber 14 and second group of hydraulic actuator of second working chamber 15 and second group of hydraulic actuator of actuator Second working chamber 15 (by check valve) is shorted also by the valve V2 of standard-sized sheet.That is, apply maximum braking force.If valve V2 State between the fully closed somewhere and standard-sized sheet between, then obviously will apply corresponding little or big brake force.

Here, valve V3 is also used in stop docking process the brake of quiet closure to realize preventing accidental movement.Such as As described before, valve V3 pass through restricted flow path by the second hydraulic actuator or first working chamber of second group of hydraulic actuator 11.2.x 14 are connected with the second working chamber 15 so that thus this or these actuator applies brake.

Valve V4 is also with the function as explained before.Valve V4 allows the first working chamber 14 of first group of actuator Interconnect with the first working chamber 14 of second group of actuator so that thus second group of actuator discharge.In explanation before, it is clear that ESB/ESG functions cannot be realized using this embodiment.Therefore, the cascade of the different parts of brake is applied and is not accomplished. Safety is static to keep lift car to be in during in order to before stopping in stop, and two valves must be energized.

The part brake as accumulator can also independently be filled here with brake remaining part.

Fig. 3 k illustrate the embodiment closely related with the embodiment according to Fig. 3 j.Unique difference is exactly brake in figure Simplify in 3k.Valve V3 and V4 are saved.As a result it is exactly, it is impossible to the brake peace accomplished during stop layers and sail out of before stop Quiet closure and quiet release.This embodiment is reduced to the brake hard that can perform closed loop control braking or opened loop control braking Device.

Fig. 3 L are illustrated if the pressure source of opened loop control or closed loop control for one or more actuators 11 is not liquid The principle of the hydraulic pressure configuration that press pump 19 then can be directly adopted without the need for intermediary agency itself.

The pressure source here is realized with 111 form of hydraulic accumulator.Valve V2 is with its flowed friction opened loop control or closed loop control Whether hydraulic fluid processed and how many will be forced into the first working chamber 14 of brake actuator 11 by accumulator.It is same with this When, hydraulic accumulator can receive from the second working chamber 15 hydraulic fluid and/or the flow of pressurized by the V2 short circuits of control valve discharged Body.

Accumulator is preferably " round trip ", " double-rod " cylinder, and the piston in cylinder forms the first accumulator chamber and the second accumulator chamber, And the equivalent hydraulic fluid that the cylinder is designed to from the first accumulator chamber discharge is received by the second accumulator chamber when piston is moved, The piston is preferably by Spring driving.

Hydraulic pump 19 is only run when needing to refill accumulator 111.

Fig. 4 a illustrate the hydraulic tube line chart of one of them elevator car brake unit, and which can be used for realizing institute One of two conceptions for proposing.This embodiment is similar to the embodiment of Fig. 3 b, because here, to the control of institute's braking forces thereto not Carried out by controlling valve V2, but pass through hydraulic pump itself.

Typically, brake is made up of single hydraulic actuator, but is made up of several hydraulic actuators, their again phases Like composition, preferably two-piece type or multi-piece type.

Therefore, the right side area of Fig. 4 a schematically shows three hydraulic actuator 11.1-11.3, each hydraulic actuator by Cylinder 12 with piston 13 is constituted, and corresponding cylinder is preferably divided into first working positioned at 13 both sides of piston opposite each other by piston Chamber 14 and the second working chamber 15, for the sake of more preferable general view, reference 12,13,14 and 15 is just for the first actuator 11.1 It is labeled.

Each hydraulic actuator is interacted with two brake lining 16, and the brake lining acts on track and/or elevator The guide rail 2 of car.

As long as having enough hydraulic pressure in corresponding first working chamber 14, hydraulic actuator is just resisted its respective springs part 17 and is protected Its piston and/or connected piston rod are held in position is opened, here, no pressure is applied to corresponding brake lining 16.These spring parts 17 are collectively forming so-called primary spring element.

Hydraulic pump 19 is preferably driven to ensure to supply hydraulic pressure by motor 18.Pressure equalising vessel is provided with typically but not necessarily 20, the cumulative volume and flatulence of heat type of its balanced hydraulic fluid and possible micro- leakage.

Hydraulic pump 19 with normal operation be on the pressure side D side (the brake action of the brake/decrease of opening) The first working chamber 14 of hydraulic actuator is connected to, and which is connected with the opposite side for being suction side S in normal operation To the second working chamber 15 of hydraulic actuator.

Which kind of pump to realize idea of the invention is inessential using.For all proposed solutions, leaf Wheel pump is preferred option.For many quadrants run, the use of piston pump as hydraulic pump 19 is most preferred sometimes, preferably has The pump/motor of multiple cylinders.This is because piston pump is particularly suited for realizing that dual quadrant is transported when suitable motor is engaged to Turn (Zweiquadrantenbetrieb).Dual quadrant operation here refers to following patterns, and wherein the pump is once as by hydraulic pressure Fluid is pressed into the pump operation of working chamber, and again, the pump is run as hydraulic motor, and the hydraulic motor is left above-mentioned working chamber Hydraulic fluid, and hydraulic motor by motor be provided with determine flow out working chamber hydraulic fluid speed braking moment.

As all of other embodiments, preferably it is the fact that the characteristics of this embodiment, it is used as closed system quilt Operation.That is, hydraulic pump hydraulic fluid not pump into the working chamber of hydraulic cylinder from reserving liquid tank, the hydraulic fluid the time It is drained during arrival and returns to reserving liquid tank.Conversely, hydraulic fluid to be located at hydraulic pump the work of the first side of respective hydraulic piston certainly Chamber 14 is recycled to the working chamber 15 positioned at hydraulic piston opposite side.This is allowed for leaving working chamber for keeping brake Open or or flow into above-mentioned working chamber it is hydraulic fluid institute original speed, quickly speed and the opened loop control of sensitivity response or Closed loop control.This is because closed-system allows dual quadrant without the time difference to run, and (the otherwise time difference may be by must inhale from liquid case again Enter hydraulic fluid to cause, said liquid case no pressure).

It is provided with external control valve V2 (here can be common guiding valve).If the latter closes, it is by working chamber 14 and hydraulic pressure Hydraulic system branch road residing for pump 19 and the second working chamber 15 is separated.The valve assists in keeping brake and almost beats with no energy Open, if valve V2 is to close, in pressure and ensure to overcome from spring 17 power that acts on closure brake direction First working chamber will be separated with remaining hydraulic circuit, and internal pressure will be locked, so as to apply for keeping valve to close The power of the very little closed.

In addition, be provided with the second external control hydraulic valve V1, it is in open mode by the first working chamber 14 of hydraulic actuator and Two working chambers, 15 hydraulic pressure short circuit, i.e. its guarantee connect to the balanced hydraulic pressure without substantial hindrance of pressure between the first and second working chambers It is logical, and especially here does not arrange restricting element, i.e., arbitrarily do not increase the element of flowed friction.

Alternatively, the 3rd external control hydraulic valve V3 is provided with, it ensures between the first working chamber 14 and the second working chamber 15 Throttling fluid passage.As explained abovely, restriction effect can be based on valve V3 itself, or narrow pipeline and/or from Conventional conduit with the built-in choke valve 21 connected with valve.

In normal operation, the first working chamber 14 filled with the hydraulic fluid in pressure, all valves be close and What hydraulic pump was preferably off.Brake lining 16 need not pay special energy in its open position is held in, because except Other energy closed position outside do not need to be maintained it in valve energy supply.

In order to cause brake quickly to apply as far as possible, the control device 10 of (preferred) lift car open valve V1 and V4, so as to hydraulic pressure is disappeared by the pressure equilibrium between working chamber 14,15 in working chamber 14, this is sent out by valve V1 and V4 Raw (hydraulic actuator 11.1).After pressure equilibrium occurs, this or these brake lining 16 is with by this or these spring The maximum, force given by part 17 is crushed in track and/or car guide rail 2, then brake within the very of short duration time with Specified brake force is responded with its maximum braking force.

In order to the delay for causing brake is applied (such as do not produce and intercept car when stop is stopped with can hearing noise), 10 opening valve V3 of lift car control device.Therefore, the pressure between first and second working chamber 14,15 is only with party in delay Formula is released, and the time history here of reduced pressure is specified by choke valve 21.This causes following facts, and brake is postponing Mode is not produced to be applied in which can hear noise.

Valve V2 can be used to further affect brake application rate, if desired.

Valve V1, V3 (if there is) is remained turned-off.Valve V2 is opened, and hydraulic pump 19 is activated or formerly has been turned on simultaneously.

In theory, hydraulic pump 19 especially also so can be used, and it produces certain pumping effect on 14 direction of working chamber, But only the big hydraulic fluid leakage current discharged from relevant work chamber 14 under acting in spring part 17 is more than pumping effect to this effect, So as to hydraulic fluid can be controlled or be adjusted by the current transporting velocity of hydraulic pump from the speed that corresponding working chamber 14 is discharged Section, to affect the speed or power of brake administration.Hydraulic pump then preferably in following areas adjacent oscillatory operations, in the area Domain, the attempted loopback of corresponding spring part through pump hydraulic fluid leakage current in the balance of hydraulic fluid stream in, so as to pump Speed only need to be reduced by a small margin to realize that current brake force reduces, and must be increased by a small margin to realize current system Power increases.

The precondition of this operational mode is that, using following pumps, which shows when being not driven or driven with decrease power The leakage that can not ignore is shown.

In the case of high-quality hydraulic pump and especially piston pump, leakage current is by considerably less to make hydraulic pump according to institute The mode of stating affects the speed that hydraulic fluid is discharged from relevant work chamber 14.Alternatively, the hydraulic pump then can be alternately Be used as conveying direction by the pump of motor-driven, or be used as hydraulic motor, it means that defeated during pump operation Drive motor on the rightabout in direction is sent, may be according to generator mode drive motor.By being used as generation accordingly The electric wiring of the motor of device operation, the torque that hydraulic motor must be resisted can be set and/or hydraulic motor rev/min can quilt Setting.All these impact brake application rates.

For this purpose, the motor that speed controlling or more preferably speed are adjusted is used for driving hydraulic pump.Hydraulic pump is preferably following Areas adjacent vibration operation, in the region, the attempted loopback of corresponding spring part pass through the hydraulic fluid leakage current of the pump in In the balance of hydraulic fluid stream, only need to be reduced by a small margin so as to pump speed to realize that current brake force reduces, and must be little Amplitude increase is increased with realizing current brake force.Then, this or these spring part 17 compressing this or these brake lining The power of 16 to track more or less can be cancelled, so as to current braking effort can be well controlled or adjust.

In appropriate situations, valve V2 can also abandon valve V3.This can actively realize by hydraulic pump that the hydraulic pump is according to institute Mode is stated by Special controlling, so as to the pressure balance between the chamber is slower.In appropriate situations, accordingly set in hydraulic pump In the case of meter, this also can be passively realized by the leakage current of Jing pumps.

It is noted that so operation hydraulic pump is probably favourable, i.e., it is actively by hydraulic fluid from working chamber 14 Working chamber 15 is pumped into, then ensures brake with maximum braking force more rapidly compared to by opening the only hydraulic pressure short circuit of valve V1 Apply.

It should be mentioned that being particularly suited for realizing above by figure according to the elevator car brake unit of the embodiment of Fig. 4 a 1 the first conception for being proposed.It is true, because another valve V4 can be arranged, can alternatively turn on and off one whereby Or several actuators (being actuator 11.1 in the condition shown in fig. 4 a).

Two in elevator car brake unit as shown in fig. 4 a be enough to realize by two deadman's brake ESB and two The above-mentioned conception that individual additional brake ESG is formed, because actuator (is actuator 11.2 in the case of Fig. 4 a illustrated embodiments Realize distributing to the repertoire of deadman's brake with Part I 11.3), and one or several actuators are (shown in Fig. 4 a Example in the case of be that 11.1) actuator is switched on by valve V4.If necessary to realize distributing to the function of additional brake And applying maximum braking force to control such as free falling, then valve V4 is activated.

Fig. 4 b illustrate the hydraulic pressure wiring diagram of another simplified version of brake unit, and it can especially be used by using horse Up to hydraulic pump so as to opened loop control or the closed loop control brake force realizing above-mentioned second basic conception.

In order to realize certain redundancy, actuator 11.1 and 11.2 of the here using two or more simultaneously operatings. Here does not provide the probability of the cascade operation of actuator 11.1,11.2, especially related to high-volume high efficiency manufacture here, but It is probably effective if necessary.

For this embodiment, valve used is optimised for cost.External control valve V1 also is provided with, the valve is in open shape First working chamber 14 and the second working chamber 15 of hydraulic actuator described in state hydraulic pressure short circuit, that is, ensure to be not apparent from hindering first and the The hydraulic communication of pressure between two working chambers.If brake will be applied more quickly, valve V1 will be always on.V2 pair, valve The slow administration of brake is responsible for.Once the latter is opened, then the power compressing hydraulic fluid conduct of this or these spring part 17 Leakage current flows along the pump part of hydraulic pump 19, or currently flows to chamber as the pump of hydraulic motor operating through alternately 15.According to the revolutions per minute of pump operation, it affects from chamber 14 speed of the hydraulic fluid stream for flowing into chamber 15.Speed is applied in brake Degree and (if available) current brake force can be adjust or controlled in same manner described above.

The specific embodiment of elevator car brake unit of the invention.

Fig. 5 and Fig. 6 illustrate the practical embodiment of the brake unit preferably adopted in framework of the present invention.

With regard to Fig. 5, following detection can be made：

Elevator car brake unit includes hydraulic control unit 22.

It is desirable that all of hydraulic unit is located in control unit 22 and/or is directly attached to control unit by flange, and Unused flexible pipe.Caliper also least substantially at or completely (not signifying to illustrate) be the integral part of control unit be optimal. Otherwise, this design is corresponding to the following explanation by figure.

In most cases, hydraulic actuator 11.1-11.3 is attached to the side of control unit 22 by flange, is here Three actuators.They are passed to corresponding interior in the contact surface of the shape complementarity of hydraulic control unit 22 in succession by hydraulic direct Hole, preferably by the endoporus in its contact surface.Can also be clearly seen by the piston rod 31 of actuator (None- identified in Figure 5) The compression spring 33 for passing through.Compression spring 33 is collectively forming main spring unit, and from terms of functional perspective, they are corresponding to such as Fig. 3 a- Spring 17 shown in 4b.

Fixed support 23 is preferably attached to sides adjacent by flange with an angle of control unit, and which is equipped with actual braking Pincers 24,16 activity of brake lining for being attached to brake lining seat 25 is held in place in caliper, so as to they can be from both sides quilt Lay or be pressed onto on raceway surface.

Control unit 22 forms live hydraulic system together with actuator 11.1-11.3, i.e., it is equipped with hydraulic pump 19 and its drives Dynamic device and/or motor 18, valve V1, V2 and if available also V3, V4 (or V23/V34) and pressure equalisation container 20.Individually Pipeline is unnecessary with regard to this, because individually all pipelines required for hydraulic unit connection pass through in appropriate in control unit Hole is illustrated, except lead directly to hydraulic pump 19 pipeline or by suitable endoporus directly off hydraulic pump pipeline.This The advantage of kind of practising way is that hydraulic line system is very rigid, mainly avoids and unwanted generally cannot almost avoid The elasticity that plays a role.This is especially important in situations below, will carry out regulating brake force by hydraulic pump, or important Property involve can only by valve open produce regulation choke pressure reduce the fact, which causes brake lining to prolong through one section The slow time gradually closes, and maximum braking force is reached until over time.

The electronic-controlled installation of itself and at least one acceleration transducer are preferably allocated to control unit 22, but here Do not signify control unit is shown.As understood from information above, the current braking effort of elevator car brake unit can be borrowed Help acceleration transducer to determine and by opened loop control or preferred closed loop control.

Including above-mentioned part elevator car brake unit be preferably designed to it can at least in hydraulic pressure side plug and play, Only need to be connected with power supply and signal network, and installment work is no longer needed in hydraulic pressure side.

Caliper 24 is preferably designed to box-shaped, and which has base plate, and border member R is preferably dashed forward along the whole major opposing side of the base plate Go out, see Fig. 5.Border member R at position opposite each other be it is detached, the position necessarily form U 26 for The track that brake lining interacts, is shown in Fig. 5 again.

According to the present invention, brake lining 16 is not slidably mounted in caliper 24 the characteristics of the brake unit especially, But flexibly kept relative to caliper 24 with a gap.

Thus, brake lining 16 is attached to brake lining with being individually attached or be preferably divided into multiple local liners Seat 25, preferably by screw tightening to brake lining seat.

As best shown in fig. 6, each brake lining seat 25 is passed through by laminated leaf spring 27 for this, and laminated leaf spring is in both sides from corresponding Brake lining seat projects and there produces an eye 28, and this contributes to laminated leaf spring is attached by pass through its Positioning screw 29 It is connected to caliper 24.The laminated leaf spring 27 of one brake lining seat 25 is preferably fixed by screw to a side of U 26, and another The laminated leaf spring 27 of one brake lining seat 25 is fixed by screw to another opposed side of U 26.It should be emphasized that lamination Spring 27 has a guiding function, therefore functionally unrelated with main spring unit or auxiliary spring unit and be especially not construed as One part.They especially do not provide any noticeable brake engagement resistance.

Hereby, two eyes 28 of each laminated leaf spring 27 are arranged to different.The forward eye on direction is moved downward (being installed according to its use range) is designed to it and actually seamlessly accommodates corresponding Positioning screw 29.Therefore, it is big Pulling force can be transmitted by the eye, when the big pulling force occurs in interception lift car.Conversely, on direction is moved downward The eye delayed is designed to it and so produces floating support together with corresponding Positioning screw 29, i.e. laminated leaf spring 27 can be substantially Smoothly deform, while being forced on track but tension of the without prejudice on the direction of the longitudinal axis parallel to independent leaf spring, prevent Situation about occurring when only just as using following leaf springs, the leaf spring is located at the positioning of the ophthalmic in both sides by gapless Screw 29 is firmly clamped.

Can see, two brake lining seats 25 are pinned, or by spring set screw just as here 30 are fixed by screw to laminated leaf spring, preferably wherein in heart district domain, so as to brake lining seat 25 cannot leave its laminated leaf spring 27.One As, this screw-driving also absorbs horizontal brake force, the i.e. braking in response to acting between raceway surface and brake lining and rubs The power wiped and occur.

Also meaning, each described brake lining seat thereon front edge and lower front end edge from caliper 24 And/or the overlay region that the use " " of border member R of caliper 24 is indicated partly overlaps, referring to Fig. 5.This improves safety, because Even if laminated leaf spring supporting role fails, corresponding brake lining seat 25 is because caliper 24 cannot be pushed out, but contrary braking Be now arranged in directly contact and still transmit brake force between pincers 24 and brake lining seat 25, this in the case of normal function not such as This.

So far, opposed brake lining seat 25 is mirror image identical for structure.

The main distinction is the fact that the opposed brake lining seat 25 of only one of which is directly born from hydraulic actuation The power of device 11.1-11.3.The brake lining seat keeps so-called active brake liner.

Can easily recognize that these three actuators 11.1-11.3, Fig. 6 are illustrated cylinder 12 and be connected with piston rod 31 in figure 6 Piston 13, and 12 points of cylinder is the first working chamber 14 and the second working chamber 15 by piston 13, as shown in Fig. 3 a, 3b and Fig. 4 a, 4b, by This, for the sake of more preferable general view, reference 12,13,14,15 is labeled out in first actuator of Fig. 6, but also corresponding Suitable for actuator 11.2,11.3.

The brake lining seat 25 that directly bear the power of actuator 11 is preferably not linked to the piston rod 31 of actuator 11. Piston rod 31 preferably can only transmit the back side that do not face brake lining 16 of the compression stress to brake lining seat 25, and brake lining Seat does not transmit any shearing force to piston rod 31 substantially because of its specific position at laminated leaf spring 27.Although relative to Fig. 3 a, In 3b and Fig. 4 a, 4b, in single brake lining seat 25, this permission is according to the current desired braking wanted for several actuator collective effects Power is by all actuator 11.1-11.3 or only by the less actuator of or quantity co-operating brake lining Seat.In addition, such design protection piston rod packing and piston rod guiding.

, with reference to as described in Fig. 5, each piston rod 31 supports the compression spring 33 of preferably helically form of springs.It is such It is seated between piston rod 31 and caliper 24, as long as that is, without hydraulic pressure at the piston 13 being attached thereto, it is just closing direction Upper forces piston bar 31.These compression springs 33 limit nominal force, and brake lining seat 25 is such as with the volume under powering-off state Determine power to be forced on track, thus be specified brake force.Then, whole compression spring here is also referred to as main spring unit.Instead It is as the same, if having corresponding hydraulic pressure in the first working chamber 14, piston rod 31 will overcome the masterpiece land used of compression spring 33 It is forced into open position.If all piston rods are all in open position, brake lining seat 25 can be together with the system for being kept Dynamic liner 16 is brought to open position from position is applied by the laminated leaf spring belonging to which.

Each piston rod 31 is preferably passed through and belongs to its compression spring 33, and compression spring is with which not towards brake lining seat Side is against caliper 24 as already described above and/or its border member, and is connected to piston rod 31 with its opposite side Latch plate 34.

Opposed 25 here of brake lining seat for directly not bearing actuator force keeps so-called passive brake lining.It is excellent It is not rigid to select, but is elastically mounted in caliper 24 (not only by another spring part in 36 form of laminated leaf spring Independently).The size of auxiliary spring unit is set so, i.e. kept and by the master in certain position by its spring force for applying The balance of the spring force that spring unit applies.

The reasons why installing auxiliary spring unit is that the rigidity of brake lining seat is installed and brake will be caused so consumingly to do Go out reaction, (brake force is through the increase of certain prolongation time until reaching maximum braking so that braking force delay applying cannot be realized Power), and brake force closed loop control cannot be realized certainly.In the case where rigidity installs opposed brake lining seat extremely pincers, will Can be so situation that is, 14 volume of working chamber actually no longer can change from brake lining starts to contact track, so as to Pressure in the working chamber 14 further increase or reduce soon resulting in cannot sensitive control the external change of brake force.

In order to ensure the motility of the second brake lining seat 25, several pilot pins are fixed and/or adjusting screw 35 is screwed into Its dorsal part, pilot pin or adjusting screw do not pass through caliper 24 and/or its above-mentioned border member towards the side of brake lining seat with which. There is compression spring part of multiple heres in 36 form of laminated leaf spring between them, which slides into corresponding adjusting screw 35 On.So, the second brake lining seat can avoid the auxiliary spring unit that (by overcoming) here is preferably produced by laminated leaf spring Increase tension force.It is many that this causes characteristic curve to relax, because small pressure change is no longer result in the very big change of brake force.

But strikingly, the second brake lining seat 25 is also substantially attached to laminated leaf spring 27, and institute when braking The power of appearance is passed to caliper 24 by laminated leaf spring 27 completely or at least substantially, rather than passes through adjusting screw 35.These are preferably extended with big gap in caliper 24, so as not to disturb the second brake lining seat motility or with Frictional force distorts it.The function of adjusting screw 35 is basically limited to following facts, will laminated leaf spring 36 be held in place, and with its The side towards the lock nut 37 of brake lining seat and/or lower section does not protrude from the head of caliper and avoids the brake lining seat It is too remote relative to direction top offset of the caliper in track and/or guide rail 2 under the influence of laminated leaf spring and possible lug.Especially Be arrange lock nut 37 be easily, because the position can be set like this.

For the sake of complete, with reference to the adjustable stop 38 being preferably provided with, backstop here is designed to stop screw shape, and which is preferably logical Cross locking to be fastened.So, the distance can be limited, and thus the second brake lining seat can be avoided.So, can need When ensure that brake unit illustrates from certain the characteristic curve that jumps lighted, then produce the brake force of surge together with causing respectively The further pressure increase of dynamic device side, if.

Have to, it is noted once again that servo brakes can also be used as by the brake described by accompanying drawing just.Then, The motor system mostly in disk brake or drum brake form for brake motor or live axle required at present Dynamic device is no longer required, and this at least compensate for quite a few cost caused by brake provided by the present invention.

Finally, the overall conclusion prompting of herein below is looked like required：

Preferably, it is claimed by the following feature independently of further feature or with belong to the application other The content described by feature that claim feature or the feature from description combine：

A kind of method of the opened loop control or closed loop control for the elevator with elevator car brake is claimed, its It is characterized in that, brake application rate and/or the final power of track is depressed into by best by the brake lining that piston rod 31 is operated Hydraulic power source in hydraulic pump form and at least one determines that the control valve of the flowed friction for controlling pipeline 39 is switched on and off control or closes Ring control, the hydraulic power source be on the pressure side in fluid communication with the first working chamber 14 of at least one hydraulic actuator 11 and its suction Power side is in fluid communication with the second working chamber 15, and the control pipeline 39 is connected or the first and second working chambers 14,15 by hydraulic pressure The common rail 114 for connecting the first working chamber 14 is connected with the common rail of the second working chamber of hydraulic communication 15, and it is best to control valve V2 or V23 It is the valve of special on-off operation as above.

A kind of method of the opened loop control or closed loop control for the elevator with elevator car brake is claimed, its It is characterized in that, (when beginning is sailed out of) elevator car brake is released in the pressure in accumulator by savings, while hydraulic pump Delay start and preferably lift car have started to it is mobile before not yet start, or (best) has reached which in lift car Not yet start before at least the 50% of normally travel speed.Accumulator preferably at least one in case of emergency can contribute to Produce brake force actuator, or at least one not with brake lining but be designed to corresponding to equipped with or operate system The actuator of dynamic liner and contribute to the actuator of braking maneuver.

Claim a kind of method for running the hydraulic elevator car brake of elevator, wherein the hydraulic elevator car Brake includes at least one hydraulic actuator with least one piston rod, and the piston rod is led in arrester close direction With following power pretensions, the power is used for the brake force for producing defined to spring unit, and at least one piston rod is connected To piston, the power of piston counterbalance spring part under pressure is characterized in that, the pressure of the piston is compressed on contrary closing direction Power will lift car reached or will reach stop in the case of be released with throttle style, then, lift car is protected Hold the brake force needed for stopping to be applied in delayed mode, the pressure that the piston is compressed on contrary closing direction will sent out By bypassing the accelerated release in throttling fluid passage in the case of existing lift car free falling or hypervelocity.

Furthermore, it desired to protect a kind of method according to paragraph, it is characterized in that, the sealing of the permission leakage current of the hydraulic pump Gap is also used to or is only used for realization throttling or the fluid that throttles passes through and/or the open loop or closed loop control of brake force.It is above-mentioned Seal clearance is the gap between the movable part and standing part of the pump that can be close to by hydraulic fluid.

A kind of elevator car brake of claimed one or more be designed in execution preceding method and outfit There is the elevator of this elevator car brake.

Previous paragraphs listed by claim can by from other claim or description one or more are special Levy to supply.

Reference numerals list

1 drive unit for lift

2 car guide rails

3 guides

4 lift cars

5 route benchmark

6 displacement transducers

First elevator car brake unit of 7a deadman's brakes

Another elevator car brake unit of 7b deadman's brakes

First elevator car brake unit of 7'a another kind brake forms

Second elevator car brake unit of 7'b another kind brake forms

First additional brake unit of 8a additional brakes

Another additional brake unit of 8b additional brakes

9 another central elevator control gears

The control device of 10 lift cars

10a acceleration transducers

10b acceleration transducers

10c holding wires

11 hydraulic actuators (are separately presented as 11.1.1-11.1.x and/or 11.2.1-11.2.x and/or 11.1,11.2 With 11.3)

12 cylinders

13 pistons

First working chamber of 14 cylinders

Second working chamber of 15 cylinders

16 brake lining

17 spring parts, a part for main spring unit

18 motor

19 hydraulic pumps

20 pressure equalising vessels

21 choke valves

22 control units

23 fixed supports

24 calipers

25 brake lining seats

26 passages with caliper

27 laminated leaf springs

The eye of 28 laminated leaf springs

29 fixing screws laminated leaf springs

30 spring set screws

31 piston rods

32 (unallocated)

33 compression springs

34 latch plates

35 adjusting screws

36 laminated leaf springs

The locking nut of 37 adjusting screws

38 adjustable stops

39 control pipelines

40 short-circuit pipelines

41 choke flow lines

42 brake discharge lines

111 accumulators

The loop of 114 the first working chambers of connection

The loop of 115 the second working chambers of connection

The 116 common loops for being used for multiple valves

The loop of 117 interconnection

The loop of 118 interconnection

The loop of 119 interconnection

Overlay region on front side of caliper and brake lining

The border member of R calipers

ESB deadman's brakes

ESG additional brakes

ISB intelligent and safe brakes

D prexxure of the hydraulic pump side

S hydraulic pump suction sides

SE1 pressure transducers

SE2 pressure transducers

V1 valves 1

V2 valves 2

V3 valves 3

V4 valves 4

V5 valves 5

V23 valves 23

V34 valves 34

CV check valves (are separately presented as CV1, CV2, CV3)

BP forms the conduit under fluid pressure for allowing pressure controlled bypass

The first conduit under fluid pressures of HS1

The second conduit under fluid pressures of HS2

Claims (14)

1. elevator of the one kind with the lift car (4) moved up and down along guide rail (2), which includes opened loop control or closed loop control For the liquid braking device of the lift car (4) of slowing down,

Wherein, the brake is included for the hydraulic actuator in closing direction compressing one group of brake lining (16) to brake component (11),

The hydraulic actuator (11) is by pretension on closing direction by main spring unit using the power for producing drag friction ,

Wherein, the hydraulic actuator (11) includes hydraulic cylinder (12) and piston (13), and the cylinder (12) is divided into the first work by the piston Make chamber (14) and the second working chamber (15),

Wherein, according to the hydraulic pressure being present in the first working chamber (14), the piston (13) is fully compensated or part compensation master The power of spring unit,

It is characterized in that,

Speed that the brake is applied and/or it is hydraulically actuated the brake lining (16) that device (11) operates and is forced on track (2) Final power be by hydraulic pressure source by opened loop control or closed loop control,

On the pressure side (D) of the hydraulic pressure source fills above-mentioned first working chamber of at least one piston (13) with hydraulic fluid (14), its suction side (S) can from the second working chamber (15) pumping hydraulic fluid of at least one piston (13),

Wherein, the first working chamber (14) and the second working chamber (15) are interconnected by additonal pressure control pipeline (39), and wherein, stream The actual flow velocity for crossing the hydraulic fluid of the Stress control pipeline (39) is determined by control valve.

2. elevator according to claim 1, is characterized in that, control valve (V2；V23) run for special on-off Valve, which has only two settling positions, i.e. " valve is fully closed " or " valve standard-sized sheet ".

3. elevator according to claim 2, is characterized in that, control valve (V2；V23) it is the valve with valve element, the valve is used In blocking or open through the valve (V2；V23 path), wherein, the valve (V2；V23) design in the following manner, i.e. stream Cross the valve (V2；V23 flow) can be by per second repeatedly in state " the mobile valve element on closing direction " and " in opening side Move up valve element " between toggle the valve (V2；V23) determining.

4. the elevator according to one of aforementioned claim, is characterized in that, the hydraulic system is except including with the control The Stress control pipeline (39) of valve (V2) outward, also includes：

Choke flow line with throttling control valve (V3) (41), among lift car (4) stop docking process or afterwards Liquid braking device is applied in noise abatement；And/or

Short-circuit pipeline (40) with short valve (V1), quickly applies for brake in case of emergency；And/or

Brake discharge line (42) with brake relief valve (V4), does not start hydraulic pump for discharging brake (19), reach the degree that can start newline ladder.

5. the elevator according to one of aforementioned claim, which is provided with to the hydraulic pump of the hydraulic actuator (11) feed flow (19), wherein, the pump (19) under abnormal operating condition by lift car (4) brake to normal operational condition or to stop ladder mistake It is continuous operation in journey, and the pump itself is not by speed controlling, Torque Control, FREQUENCY CONTROL or power consumption control.

6. the elevator according to one of aforementioned claim, is characterized in that, used as the liquid of hydraulic actuator (11) part Cylinder pressure (12) is " round trip ", " double-rod " cylinder (12), has the piston (13) in which, for forming the first working chamber (14) and the Two working chambers (15), wherein, the cylinder (12) is designed in the following manner, i.e. when the piston (13) is mobile, from described The hydraulic fluid shifted by first working chamber (14) is equivalent with the hydraulic fluid obtained by second working chamber (15).

7. the elevator according to one of aforementioned claim, is characterized in that, the hydraulic actuator (11) includes one or best More cylinders (12), wherein, the second working chamber of at least first working chamber (14) or these cylinders (12) of these cylinders (12) (15) with the direct fluid interconnection in common rail form.

8. the elevator according to one of aforementioned claim, is characterized in that, the elevator car brake and control lift car The control device of brake is designed as follows, i.e. when beginning is sailed out of, and the elevator car brake is by being stored in accumulator (111) pressure in is opened, and the hydraulic pump (19) delay start and preferably reaches its normally travel in lift car (4) Speed at least 30% and be preferably at least not to be activated before 50%.

9. elevator according to claim 8, is characterized in that, the brake includes hydraulic actuator described at least two (11), both are designed to act on brake(-holder) block, wherein, hydraulic actuator described at least one of which (11) is in normal operating In be used as hydraulic accumulator (111), its conveying opens to inoperative hydraulic pump (19) when beginning is sailed out of lift car braking Pressure required for device；Or, hydraulic actuator described at least one of which (11) and additional accumulator (111) conveying are sailed Pressure elevator car brake required for is opened when leaving the beginning inoperative hydraulic pump (19).

10. the elevator according to one of aforementioned claim, is characterized in that, the hydraulic elevator car brake itself includes adding Velocity sensor (10a, 10b), is preferably integrated in brake unit, and the signal of the acceleration transducer is used to control system Power, preferably according to causing≤mode of 1g.

The method that a kind of 11. opened loop controls or closed loop control have the hydraulic elevator car brake of hydraulic actuator (11), should Hydraulic actuator has at least one piston rod (31), and which passes through main spring unit on closing direction according to braking needed for producing Power required by power and by pretension, wherein, the piston rod (31) is connected to piston (13), and the piston is according to applying to which Hydraulic pressure, completely or partially compensate the power of the main spring unit,

It is characterized in that,

It is by speed control the brake lining operated by the piston rod (31) (16) is pressed final power in orbit System and/or Torque Control and/or many quadrant operations motor and by opened loop control or closed loop control,

Substitute optional mode as first, the motor according to actual needs, or with hydraulic pump (19) delivering hydraulic fluid and because The mode of the final power that this reduction acts on the brake lining (16) drives the hydraulic pump (19), or the motor with such as Under type carrys out brake fluid press pump (19) as generator or brake motor, i.e. hydraulic fluid it is preferred by closed loop control or open loop The liquid of control is flowed through and is flowed back towards the direction contrary with its actual conveying direction by the hydraulic pump (19) by hydraulic fluid, by This increase acts on the final power of brake lining (16), and

Optional mode is substituted as second, the motor drives hydraulic pump (19) according to actual needs as follows, i.e. the liquid Press pump (19) or delivering hydraulic fluid and thus reduce the final power for acting on brake lining (16), or described in leakage current Jing Hydraulic pump (19) flows back towards the direction contrary with conveying direction, and thus increase acts on the final power of brake lining (16).

12. methods according to claim 11, is characterized in that, the hydraulic pump (19) is with turning for preferably can becoming as desired Speed is driven.

13. methods according to claim 11 or 12, is characterized in that, in order to perform brake hard, compensate wholly or in part The hydraulic pressure of the power of the spring part (17) is eliminated, the short-circuit pipeline by bypassing the hydraulic pump (19) by short-circuit pipeline Can be by electrodynamic valve (V1) by release wholly or in part.

14. according to the method for one of claim 11 to 13, is characterized in that the elevator car brake is included for direct effect In several hydraulic actuators (11) of at least one brake lining (16), and according to the size of current desired brake force, one The actuator (11) of all of or predetermined quantity of individual elevator car brake unit is activated.