CN205367380U - Lose electricity and trigger formula wire rope stopper - Google Patents
Lose electricity and trigger formula wire rope stopper Download PDFInfo
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- CN205367380U CN205367380U CN201620051701.2U CN201620051701U CN205367380U CN 205367380 U CN205367380 U CN 205367380U CN 201620051701 U CN201620051701 U CN 201620051701U CN 205367380 U CN205367380 U CN 205367380U
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Abstract
The utility model relates to a lose electricity and trigger formula wire rope stopper, its structure is provided with the rope passageway in the frame, be provided with the braking clamp splice respectively in the both sides of rope passageway, is provided with the friction disc on the clamping face of two braking clamp splices respectively, and it is the activity clamp splice to have at least one in two braking clamp splices being provided with the extension spring on the frame laminates with the frame inner edge mutually in the back of messenger's activity clamp splice the back of clamping face of activity clamp splice is equipped with vertical spout setting up on the frame and losing the brake magnet that the electricity triggered, brake magnet is last to have the brake pushrod top to lean on in the back spout of activity clamp splice, the back of activity clamp splice is the bellied chevron face in middle part, the inner edge of frame is the recessed taper surface in middle part. The utility model discloses can make elevator car or lift by crane the heavy object and upwards rush to summit or swift current car downwards, all can be at once by the utility model discloses press from both sides to die, prevented the emergence of the pernicious consequence that the unexpected condition leads to.
Description
Technical field
This utility model relates to a kind of deadman's brake, specifically a kind of dead electricity trigger-type steel wire braking.
Background technology
Recent years; elevator slip car, rush to summit, the contingency at the end of squatting happens occasionally; for containing the generation of this type of accident; " elevator manufacture and installation safety standard " No. 1 amendment of standard of the up-to-date promulgation of China adds elevator and should install the Compulsory Feature of the safety guard preventing car accidental movement additional, with the pernicious personnel casualty accidents preventing car accidental movement from producing.
The existing safety guard preventing car accidental movement is divided into following three kinds of modes:
First kind of way is additionally to increase a set of discrete brake on the basis of original brake, as Redundancy Design.The drawback of this form is, if it occur that the situation of car accidental movement under power down mode, two brakes will action simultaneously, be so not only added significantly to the braking torque that original adjustment is qualified, and elevator brake can be made too quickly, boarding personnel are then likely to result in inertia injury.It addition, existing elevator structure, generally all without arranging the installation site and redundant space of installing the second set brake.
The second way is to adopt bidirectional safety tongs device.Traditional bidirectional safety tongs being dependent on machinery triggering, namely after car accidental movement exceeds the speed limit, is triggered safety tongs action, its reliable operation by machinery limiter of speed, but machinery limiter of speed can only could trigger safety tongs action in an overspeed situation.Being exactly also the bidirectional safety tongs of electric magnet triggering, this bidirectional safety tongs can realize the safety tongs action under the non-overspeed situation of car accidental movement.And electric magnet triggers and includes obtaining electric triggering and dead electricity two kinds of mode of operations of triggering.But, obtain electric trigger mode when system cut-off, car generation accidental displacement, cannot effectively trigger safety tongs action；Therefore, the electric magnet trigger mode of bidirectional safety tongs must adopt dead electricity trigger mode.And the drawback of dead electricity trigger mode is, when there is the situation of normally power failure rather than car accidental movement of electric power system, electric magnet also can trigger bidirectional safety tongs action, after restoring electricity, elevator can not can recover properly functioning automatically because of clamping down on of safety tongs, maintainer manual operation must be relied on, just can open safety tongs, make elevator recover properly functioning.So after the situation of city large-area power-cuts occurs, all elevators all can not recover properly functioning automatically, and this situation is inconceivable.And if on every elevator, increase the automatic recovery device of a sets of safety tongs, such as fluid pressure drive device etc., its setup cost is significantly high, is also less feasible.
3rd mode is to increase steel wire braking.Existing steel wire braking is up-running over-speed protection device mostly, its existing problem, and one is monolateral action, and eccentric wear can occur brake(-holder) block；Two be steel wire braking is also the mode of operation that hypervelocity triggers, and is unidirectional hypervelocity action.So under not having overspeed situation, if car generation accidental movement, steel wire braking is failure to actuate.Therefore, steel wire braking also must adopt electromagnetism to trigger and real could there are currently no the protection act that under overspeed situation, car moves.But what electromagnetism triggering still existence was the same with above-mentioned safety tongs obtains electric triggering and dead electricity triggering Problems existing.
Visible, owing to the existing safety guard preventing car accidental movement all has very big technology or familiar lacunas, thus also all can not meet the actually used needs of elevator.
Utility model content
The purpose of this utility model is just to provide a kind of dead electricity trigger-type steel wire braking, to solve the problem that accidental movement of elevator cage lacks the safety guard being suitable to practicality.
This utility model is achieved in that a kind of dead electricity trigger-type steel wire braking, it is provided with two braking fixture blocks that sandwich serface is relative in the frame, rope passage is formed between the sandwich serface of two braking fixture blocks, the sandwich serface of described braking fixture block is provided with friction plate, having at least one in two described braking fixture blocks is movable clip block, is provided with and pulls movable clip block so that its back side abuts in the extension spring of framework inner edge between described movable clip block and described framework；The relative sandwich serface in the back side of described movable clip block is inclined-plane, makes movable clip block constitute wedge；The inner edge of the described framework fitted with the back side of described movable clip block is the inclined-plane being harmonious with the described movable clip block back side；It is provided with longitudinal chute at the back side of described movable clip block, it is provided with the Breake Electromagnet that dead electricity triggers on said frame, equipped with the compression spring promoting armature movement and the brake pushrod linked with armature on described Breake Electromagnet, the front end of described brake pushrod acts against in the back side chute of described movable clip block.
The chevron face of the middle part projection formed is intersected at the back side of described movable clip block by two towards contrary inclined-plane；The inner edge of described framework is by two taper surfaces that the crossing middle part formed is recessed towards contrary inclined-plane.It is consequently formed a kind of two-way safety guard that all can brake protection.
This utility model is connected to the energy-storage capacitor providing delay working power supply in the control circuit of described Breake Electromagnet.This utility model utilizes energy-storage capacitor as the delay working power supply of Breake Electromagnet dexterously, and do not select storage battery power supply, its reason is that, if accumulator does not use for a long time first, will lose efficacy within several years, it is impossible to ensure the normal use of deadman's brake；Second the braking time of deadman's brake can be made to be later than the braking time of traction machine foundation brakes, impact thus reducing braking.Additionally, dead electricity trigger-type steel wire braking uses energy-storage capacitor, only remember with the several seconds for discharge time, its reliability is high, life-span is long, it is particularly suitable for use as the application scenario of long-term few deadman's brake occurring to use, more high than using accumulator as the reliability of electric magnet power supply.
In this utility model, a braking fixture block relative with described movable clip block can be fixing fixture block, and described fixing fixture block is fixed in described framework.
In this utility model, two described braking fixture blocks in described framework are movable clip block, and the structure of two described movable clip blocks is identical, for being symmetrical arranged in described framework.
This utility model can be symmetrical arranged two Breake Electromagnets on said frame, and each described Breake Electromagnet drives a described movable clip block action by brake pushrod.
This utility model also can arrange a Breake Electromagnet and a set of link gear on said frame, and described link gear connects with described Breake Electromagnet；Described Breake Electromagnet drives a described movable clip block action by brake pushrod, and drives another described movable clip block action in opposite directions by described link gear simultaneously.
The back side of described movable clip block arranges roller, bearing or semielliptic spring plate.Roller or bearing are set, are reduce the sliding friction between movable clip block and framework inner edge；Semielliptic spring plate is set, is to suitably delay the movable clip block dead action of the folder when safety arrestment.
The front end of described brake pushrod is provided with bearing or roller, to reduce movable clip block frictional resistance when safety arrestment and between brake pushrod termination.
This utility model by being arranged to the movable clip block of sphenoid in the wedge-shaped slot of steel wire braking framework, so, under normal circumstances, movable clip block is pulled to the most recess of framework inner edge taper surface by extension spring, so that the rope run in the guide in rope passage can keep barrier free accessibility, do not affect the normal use of elevator or crane gear；nullWhen there is the accidental movement situation of car or hoisting heavy because foundation brakes is malfunctioning in elevator or crane gear，Can under the control of the detecting and controlling system of equipment，Or under the control of the brake activating mechanism on this utility model，Ordering about brake pushrod promotes movable clip block to shift to sandwich serface，Make the rope channel narrows in steel wire braking，The friction plate on the braking fixture block rope to walking produces braking clamping frictional force，And this braking clamping frictional force reacts on movable clip block，Drive the direction (up or down) that movable clip block moves to steel wire rope mobile，Now the movable clip block of wedge shape is under the guiding and restrictive function of framework wedge-shaped slot，Moving process just reduces the folder rope gap of rope passage voluntarily，Quick-clamped is until pressing from both sides dead steel wire rope，Thus achieve and haulage cable reliably and quickly clamped braking，Achieve the protective effect of safety arrestment，No matter make lift car or hoisting heavy is upwards rush to summit or slip downwards car，Dead stop can be pressed from both sides at once by this utility model，Upwards rush to summit or slip downwards the generation of the contingencies such as car because of malfunctioning the caused car of the foundation brakes of elevator or crane gear or hoisting heavy thus avoiding.
If it occur that supply line's fault or normal situation about having a power failure, then the foundation brakes braking of elevator or crane gear, clamps haulage cable；And this utility model also under the effect of brake activating mechanism, can clamp steel wire rope by braking fixture block.But owing to now haulage cable clamping is braked by elevator or crane gear by foundation brakes, what do not have steel wire rope moves up and down situation, therefore, braking of the present utility model will not produce the situation making movable clip block be shifted under the drive of friction force of steel rope, thus also would not occur that movable clip block presss from both sides the situation of dead line rope in framework tapered end.After restoring electricity, brake activating mechanism obtains electric return, movable clip block in this utility model can under the effect of extension spring self-resetting, this utility model is made to automatically open up, elevator or crane gear can recover normal operation voluntarily, thus the situation avoiding the reset operation manually needed for having a power failure because of supply line occurs, thus provide very big work for the deadman's brake preventing car/weight accidental displacement on elevator or crane gear convenient, make to install additional on elevator or crane gear and prevent the deadman's brake of car/weight accidental movement to be possibly realized.
This utility model provides the energy-storage capacitor of delay working power supply by connecting in dead electricity trigger electromagnet, utilize the charge-discharge characteristic of capacitor, make the storage electric energy time can provide, for Breake Electromagnet, the electric discharge demand maintaining about 10 seconds after power failure, when occurrence of large-area has a power failure, elevator foundation brakes is braked, and makes car stop after sliding.Breake Electromagnet can be failure to actuate in the delay time continuing power supply of accumulation power supply, until after car comes to a complete stop, Breake Electromagnet dead electricity, steel wire braking action, clamp steel wire rope, if now steel wire rope and car are not subjected to displacement, then movable clip block does not enter the top in framework or in lower wedge groove；After restoring electricity, Breake Electromagnet adhesive, armature compressing compression spring contraction, in rope passage, the chucking power for steel wire rope automatically terminates, and makes elevator recover normal operating condition.Thus avoiding the reset operation manually needed for having a power failure because of supply line, without influence on elevator normally using after restoring electricity.
This utility model has the following characteristics that
1, utilize brake activating mechanism to the normal pressure of movable clip block to clamp haulage cable, with the frictional force of formation between steel wire rope and friction plate under the displacement of steel wire rope drives, make the movable clip block with wedge structure enter in the wedge-shaped slot of framework, with clamping steel wire rope, reach the purpose of braking.Only when haulage cable occurs mobile, movable clip block just enters in framework wedge-shaped slot, it is achieved clamping braking.
2, when brake activating mechanism applying normal pressure makes braking fixture block retaining clip hold state, after Power resumption, brake activating mechanism can release the steel wire braking clamp pressure to haulage cable voluntarily, haulage cable is made to recover normal operating condition, thus efficiently solving the self-healing problem of large-area power-cuts equipment.
3, this utility model simple in construction, engaged position is little, may be installed by elevator(lift) machine room or traction machine, it is simple to old structural reform is made, and solving existing elevator does not have a difficult problem for deadman's brake installation site.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the side view of embodiment 1.
Fig. 3 is the top view of embodiment 1.
Fig. 4 is the embodiment 1 structural representation when clamped condition.
Fig. 5 is the structural representation of embodiment 2.
Fig. 6 is the structural representation of embodiment 3.
Fig. 7 is the top view of embodiment 3.
Fig. 8 is the structural representation of embodiment 4.
Fig. 9 is the structural representation of embodiment 5.
In figure: 1, framework, 2, rope passage, 3, friction plate, 4, movable clip block, 5, extension spring, 6, chute, 7, Breake Electromagnet, 71, yoke, 72, armature, 73, solenoid, 74, compression spring, 75, brake pushrod, 8, end plate, 9, fixing fixture block, 10, steel wire rope.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, framework 1 is the space frame structure of four directions cylindricality, end face and the bottom surface of framework 1 are provided with scrak type opening opposing upper and lower, framework 1 is provided with two braking fixture blocks that sandwich serface is relative, rope passage 2 is formed between the sandwich serface of two braking fixture blocks, this rope passage 2 is relative up and down with the scrak type opening on framework 1, makes haulage cable 10 be able to walk up and down in framework 1.Two braking fixture blocks are oppositely arranged, and the opposite face of braking fixture block is the sandwich serface being parallel to each other, and is provided with friction plate 3 on the sandwich serface of each braking fixture block.Two braking fixture blocks in the present embodiment are movable clip block 4, and the structure of two movable clip blocks 4 is identical, is symmetrical arranged in framework 1.
In Fig. 1, the back side (opposing in the one side of sandwich serface) of movable clip block 4 is by upper and lower two chevron faces intersecting the middle part projection formed towards contrary oblique facade, two oblique facades in this chevron face can be symmetrical above and below, and two symmetrically arranged movable clip blocks 4 form an atractosome.The support body inner edge of the arranged on left and right sides of framework 1 is intersected, towards contrary oblique facade, the taper surface that the middle part formed is recessed by upper and lower two, and two oblique facades are symmetrical above and below, and the gradient of the oblique facade of framework is corresponding with the gradient of the oblique facade of movable clip block.The inner edge of framework 1 arranged on left and right sides is symmetrical structure, two relative oblique facades of the top of inner edge, framework 1 both sides constitute a wedge-shaped slot, two relative oblique facades of lower section constitute a wedge-shaped slot, so, being the formation of two wedge-shaped slots up and down in framework 1, upper and lower two wedge-shaped slots are interconnected.The chamfer length of each wedge-shaped slot should be greater than the length of the oblique facade of movable clip block 4, so that movable clip block 4 can move up and down in the wedge-shaped slot of framework 1.
Upper and lower end in framework 1 both sides respectively arranges an extension spring 5, the upper and lower end of the movable clip block 4 of tap side, place.By the effect of extension spring 5, the movable clip block 4 of side, place is made to abut in the middle position place of framework inner edge.This position is the normality holding position of movable clip block 4, is also the position making rope passage 2 keep aperture maximum so that haulage cable can in rope passage 2 normal pass.
In Fig. 3, the framework 1 at the lateral openings place of rope passage 2 is provided with end plate 8, to block braking fixture block.Rope passage 2 is to be braked fixture block by framework 1, two and the lower channel of four sides Guan Bi that two end plates 8 are encircled into.
From Fig. 1, Fig. 3, having the chute 6 of a longitudinal direction in the middle part of the back side of movable clip block 4, this chute can be up/down perforation groove, it is also possible to be the groove of one section offered between two parties upper lower sealing.For the latter, should can ensure that movable clip block 4 can arrive top dead centre and the lower dead center of framework wedge-shaped slot after brake pushrod inserts.Parallel with sandwich serface in the bottom surface of chute 6.
In Fig. 1, the middle part outside the support body of the left and right sides of framework 1 is respectively arranged with brake activating mechanism, and this brake activating mechanism includes Breake Electromagnet 7, compression spring 74 and brake pushrod 75 etc..In Fig. 1, Breake Electromagnet 7 is made up of parts such as yoke 71, armature 72 and solenoids 73；Compression spring 74 is contained in the inner chamber of Breake Electromagnet 7 (may also be arranged on the outside of Breake Electromagnet), brake pushrod 75 traverse from yoke 71, armature 72 and compression spring 74, and keeps linkage structure with armature 72.Brake pushrod 75 is perpendicular to the sandwich serface of movable clip block 4, and its front end, after penetrating in framework 1, acts against the bottom surface of chute 6, under the action of the compression spring 74, movable clip block 4 is implemented positive pressure.The position of the brake pushrod 75 of framework 1 both sides is relative.
Breake Electromagnet 7 can be selected for dead electricity trigger electromagnet, is connected to the energy-storage capacitor providing delay working power supply in the control circuit of Breake Electromagnet 7.The effect of energy-storage capacitor is the working power providing (about 0.1 10 seconds) in short-term when dead electricity to Breake Electromagnet, so that Breake Electromagnet 7 can power-off trigger action again after time delay 0.1 5 seconds, so, just can make lag behind the movement time of traction machine foundation brakes, thus avoiding this utility model and the action simultaneously of traction machine foundation brakes to make the elevator brake too quickly inertia injury caused movement time of the present utility model.
This utility model also can only arrange a brake activating mechanism on framework 1, additionally installs a set of link gear again, and link gear connects with brake activating mechanism；Brake activating mechanism drives the action of a movable clip block 4 by brake pushrod 75, and simultaneously by another movable clip block action in opposite directions of link gear driving offside, makes two movable clip blocks 4 realize pinching action in opposite directions.
When elevator generation car accidental movement (situation that namely foundation brakes is malfunctioning), owing to haulage cable is had brake clamping force by the rope brake in on-position, the steel wire rope 10 walked is produced braking friction by the friction plate 3 on two movable clip blocks 4, this braking friction reacts on movable clip block 4, drive movable clip block 4 to move up (assume now steel wire rope on move), enter in the upper wedge groove of framework 1 (Fig. 4).In the process entering framework wedge-shaped slot; two movable clip blocks 4 are forced to sandwich serface and are shifted further; make rope passage 2 narrower; thus by steel wire rope 10 Quick-clamped, folder extremely; achieve after elevator foundation brakes is malfunctioning and steel wire rope reliably and quickly clamped stop; serve safeguard protection effect, it is to avoid because of the generation of the contingency that the elevator foundation brakes malfunctioning car caused upwards is rushed to summit.
This utility model car is slipped downwards car contingency braking protection operation principle ibid, simply two movable clip blocks 4 have been in the lower wedge groove of framework 1, by dead to steel wire rope 10 Quick-clamped, folder.
For reducing the brake pushrod 75 pressure drag in the safety arrestment process of movable clip block 4, some rollers or bearing can be set at the back side of movable clip block 4, to reduce the sliding friction between movable clip block and framework inner edge.Also can slotting at the back side of movable clip block 4 and bury semielliptic spring plate underground, the bow top of semielliptic spring plate to exceed the surface of movable clip block 4, to increase flexible active force, suitably delays the movable clip block 4 dead action of the folder when safety arrestment.The front end of brake pushrod 75 can install bearing or roller, to reduce the movable clip block 4 frictional resistance when safety arrestment and between brake pushrod front end additional.
Embodiment 2
The structure of the present embodiment is essentially identical with the structure of embodiment 1, is also the structure that arranges of Dual Action fixture block, and is provided with two brake activating mechanism；The front end of the brake pushrod 75 in two brake activating mechanism acts against respectively and carries out in the chute 6 of the movable clip block 4 of respective side triggering braking.
The difference is that rope passage 2 be by framework 1, braking fixture block and the lower channel (Fig. 5) that three faces are surrounded, side is opened that formed of end plate 8.The structure that this rope passage side is opened, it is simple to install this utility model on not easily detachable lift facility, the side that namely steel wire rope 10 on elevator can pass through to open enters rope passage 2, thus being very easy to the installation of rope brake.
Embodiment 3
As shown in Figure 6, the structure of the present embodiment is essentially identical with the structure of embodiment 1, and simply two braking fixture blocks one in framework 1 are movable clip blocks 4, and another is fixing fixture block 9；Fixing fixture block 9 is fixed in framework 1, and saves the setting of a corresponding brake activating mechanism.Thus, in the present embodiment, on the framework 1 of movable clip block 4 side, only it being provided with brake activating mechanism, this brake activating mechanism includes Breake Electromagnet 7, compression spring 74 and brake pushrod 75 etc..Similarly, Breake Electromagnet 7 is made up of parts such as yoke 71, armature 72 and solenoids 73；Compression spring 74 is contained in the inner chamber of Breake Electromagnet 7 (may also be arranged on the outside of Breake Electromagnet), brake pushrod 75 traverse from yoke 71, armature 72 and compression spring 74, and keeps linkage structure with armature 72.Brake pushrod 75 is perpendicular to the chute 6 of movable clip block 4, and its front end, after penetrating in framework 1, acts against the bottom surface of chute 6, under the action of the compression spring 74, movable clip block 4 is implemented positive pressure.
In the present embodiment, the upper and lower oblique facade of inner edge, framework 1 left side constitutes the upwards wedge-shaped slot and downward wedge-shaped slot that are made up of oblique facade and vertical surface respectively with the sandwich serface of fixing fixture block 9.
In Fig. 7, being provided with the end plate 8 blocking braking fixture block in the side of the framework 1 adjacent with rope passage 2, rope passage 2 is encircled into the lower channel of four sides Guan Bi by the end plate 8 of framework 1, movable clip block 4, fixing fixture block 9 and both sides.
The present embodiment also can arrange some rollers or bearing at the back side of movable clip block 4, to reduce the sliding friction between movable clip block and framework inner edge.Also can slot at the back side of movable clip block 4 and bury semielliptic spring plate underground, suitably to delay the movable clip block 4 dead action of the folder when safety arrestment.The front end of brake pushrod 75 also can install bearing or roller, to reduce the movable clip block 4 frictional resistance when safety arrestment and between brake pushrod front end additional.
Embodiment 4
As shown in Figure 8, the structure of the present embodiment is essentially identical with the structure of embodiment 3, also be a movable clip block and a fixing fixture block structure is set, and only on the framework 1 of movable clip block 4 side, it is provided with brake activating mechanism, the framework 1 of fixing fixture block 9 side then eliminates the setting of brake activating mechanism.Institute is the lower channel that three faces are surrounded, side is opened formed by the end plate 8 of framework 1, movable clip block 4, fixing fixture block 9 and both sides the difference is that, rope passage 2.The old structural reform that the present embodiment disassembles haulage cable suitable in inconvenience is made occasion.
Embodiment 5
As shown in Figure 9, framework 1 is the space frame structure of four directions cylindricality, end face at framework 1 is provided with scrak type opening, framework 1 is provided with two braking fixture blocks that sandwich serface is relative, rope passage 2 is formed between the sandwich serface of two braking fixture blocks, this rope passage 2 is relative up and down with the scrak type opening on framework 1, makes haulage cable 10 be able to walk up and down in framework 1.Two braking fixture blocks are oppositely arranged, and the opposite face of braking fixture block is the sandwich serface being parallel to each other, and is provided with friction plate 3 on the sandwich serface of each braking fixture block.Two braking fixture blocks in the present embodiment are movable clip block 4, and the structure of two movable clip blocks 4 is identical, is symmetrical arranged in framework 1.
In the present embodiment, the sandwich serface of movable clip block 4 is vertical surface, and the back side of movable clip block is oblique facade, and the inclined-plane of two movable clip blocks 4, all towards the top of framework 1, makes two movable clip blocks 4 constitute a combination sphenoid.In the side frames body of framework 1, edge is the inclined-plane that the back side gradient with movable clip block 4 is harmonious, and the inner edge, inclined-plane of framework 1 both sides constitutes the unidirectional wedge-shaped slot of clamping combination sphenoid.
Upper and lower end in framework 1 both sides respectively arranges an extension spring 5, the upper and lower end of the movable clip block 4 of tap side, place.By the effect of extension spring 5, the movable clip block 4 of side, place is made to abut in the middle position place of support body inner edge of framework 1.This position is the normality holding position of movable clip block 4, so that the aperture of rope passage 2 meets haulage cable and passes through smoothly in rope passage 2.
Having the chute 6 of a longitudinal direction in the middle part of the back side of movable clip block 4, this chute can be up/down perforation groove, it is also possible to be the groove of one section offered between two parties upper lower sealing.Parallel with sandwich serface in the bottom surface of chute 6.
Middle part outside the support body of the left and right sides of framework 1 is respectively arranged with brake activating mechanism, and this brake activating mechanism includes Breake Electromagnet 7, compression spring 74 and brake pushrod 75 etc..Breake Electromagnet 7 is made up of parts such as yoke 71, armature 72 and solenoids 73；Compression spring 74 is contained in the inner chamber of Breake Electromagnet 7 (may also be arranged on the outside of Breake Electromagnet), brake pushrod 75 traverse from yoke 71, armature 72 and compression spring 74, and keeps linkage structure with armature 72.Brake pushrod 75 is perpendicular to the sandwich serface of movable clip block 4, and its front end, after penetrating in framework 1, acts against the bottom surface of chute 6, under the action of the compression spring 74, movable clip block 4 is implemented positive pressure.The position of the brake pushrod 75 of framework 1 both sides is relative.
Breake Electromagnet 7 can be selected for dead electricity trigger electromagnet, is connected to the energy-storage capacitor providing delay working power supply in the control circuit of Breake Electromagnet 7.
The present embodiment also can only arrange a brake activating mechanism on framework 1, additionally installs a set of link gear again, and link gear connects with brake activating mechanism；Brake activating mechanism drives the action of a movable clip block 4 by brake pushrod 75, and simultaneously by another movable clip block action in opposite directions of link gear driving offside, makes two movable clip blocks 4 realize pinching action in opposite directions.
The present embodiment owing to only having a unidirectional wedge-shaped slot in framework 1, steel wire rope can only be implemented one-way safety braking, may be adapted to use safely on the crane gear of hoist engine class, because, the crane gear of hoist engine class is when foundation brakes is malfunctioning, if the unidirectional fortuitous event that solution weight-drop, steel wire rope are descending.If to use the present embodiment on elevator traction machine, then can being respectively mounted a deadman's brake at the steel wire rope place on traction machine both sides, the braking direction of two deadman's brakes is contrary, can meet the instructions for use of elevator traction machine safety arrestment.
Similarly, the present embodiment also can arrange some rollers or bearing at the back side of movable clip block 4, to reduce the sliding friction between movable clip block and framework inner edge.Also can slot at the back side of movable clip block 4 and bury semielliptic spring plate underground, suitably to delay the movable clip block 4 dead action of the folder when safety arrestment.The front end of brake pushrod 75 also can install bearing or roller, to reduce the movable clip block 4 frictional resistance when safety arrestment and between brake pushrod front end additional.
Embodiment 6
Referring to Fig. 9 and Fig. 6, the structure of the present embodiment is essentially identical with the structure of embodiment 5, simply in two braking fixture blocks one be movable clip block 4, another is fixing fixture block 9, constitutes one quiet one dynamic one-way safety brake.Fixing fixture block 9 is fixed in framework 1, and saves the setting of a corresponding brake activating mechanism.Therefore, the present embodiment is only provided with brake activating mechanism on the framework 1 of movable clip block 4 side, and this brake activating mechanism includes Breake Electromagnet 7, compression spring 74 and brake pushrod 75 etc..Similarly, Breake Electromagnet 7 is made up of parts such as yoke 71, armature 72 and solenoids 73；Compression spring 74 is contained in the inner chamber of Breake Electromagnet 7, brake pushrod 75 traverse from yoke 71, armature 72 and compression spring 74, and keeps linkage structure with armature 72.Brake pushrod 75 is perpendicular to the chute 6 of movable clip block 4, and its front end, after penetrating in framework 1, acts against the bottom surface of chute 6, under the action of the compression spring 74, movable clip block 4 is implemented positive pressure.
The applicable situation of the present embodiment is with embodiment 5.
Working method of the present utility model is as follows:
1, by the steel wire rope 10 of lifting car through rope passage 2 of the present utility model, and the control circuit of brake activating mechanism in this utility model is connected in working power.
2, when traction machine foundation brakes dead electricity is braked, this utility model synchronizes dead electricity, but energy-storage capacitor provides the delay working power supply of 0.1 10 seconds for Breake Electromagnet 7 this moment, brakes after making this utility model postpone 0.1 5 seconds.
3, adjusting the switching-off action time less than the traction machine foundation brakes switching-off action time of the present utility model, when traction machine foundation brakes obtains electric opening, this utility model synchronizes electric, but within 0.05 0.5 seconds, opens prior to traction machine foundation brakes.
4, when traction machine proper motion, the movable clip block 4 in this utility model is pulled to the inner edge of framework 1 by extension spring 5, and the rope passage 2 between two braking fixture blocks expands (Fig. 1), makes steel wire rope 10 travel through rope passage 22 without barrier.
5, when traction machine foundation brakes normal brake application, this utility model deferred action, movable clip block 4 is implemented forward extrusion power by brake pushrod 75 in brake activating mechanism under the action of the compression spring 74, making movable clip block 4 press to the steel wire rope 10 in rope passage 2, two braking fixture blocks clamp the steel wire rope 10 braked by foundation brakes.
6, when traction machine foundation brakes is normally opened, this utility model is opened a sluice gate prior to traction machine foundation brakes for 0.05 0.5 seconds, brake pushrod 75 bounces back, eliminate the forward extrusion power to movable clip block 4, movable clip block 4 reverses under the effect of extension spring 5, cling to the inner edge of framework 1, before steel wire rope is by drawing-in motion, expands rope passage 2 in advance.
7, when traction machine foundation brakes is after braking, when steel wire rope starts action after not stopping action or stopping again, the steel wire rope 10 clamped by this utility model drives movable clip block 4 to produce with steel wire rope action in the same direction, movable clip block 4 is made to enter in the wedge-shaped slot of framework 1 (Fig. 4), under the effect of framework wedge-shaped slot, steel wire rope in rope passage 2 is produced bigger clamping force, and under the position-limiting action of framework wedge-shaped slot, by the dead stop of rope cramp of motion.
8, when needs brake hard, disconnect the line switching between control circuit and energy-storage capacitor in brake activating mechanism, movable clip block 4 is implemented forward extrusion power by brake pushrod 75 in brake activating mechanism under the action of the compression spring 74, movable clip block 4 is made to press to the steel wire rope 10 in rope passage 2, the steel wire rope that two braking fixture block clamping movement, the steel wire rope 10 of motion drives movable clip block 4 to be moved upwardly or downwardly therewith, movable clip block 4 is made to enter in the corresponding wedge-shaped slot of framework 1, under the effect of framework wedge-shaped slot, steel wire rope 10 in rope passage 2 is produced bigger clamping force, and under the position-limiting action of framework wedge-shaped slot, the dead stop of rope cramp by motion.
9, when the Failure elimination of traction machine foundation brakes or after the cause of accident of brake hard eliminates, connect working power, traction machine foundation brakes is opened, in this utility model, the Breake Electromagnet of brake activating mechanism obtains electric adhesive, eliminates compression spring 74 and the brake pushrod 75 forward extrusion power to movable clip block 4；Then traction machine reversion is controlled again through point driving switch, now, framework wedge-shaped slot is braked fixture block and presss from both sides the steel wire rope generation counteragent trend of dead stop, braking fixture block is applied reverse active force, movable clip block 4 is made to loosen and to the rightabout action entering framework wedge-shaped slot, after movable clip block 4 leaves the end stop of framework wedge-shaped slot, movable clip block 4 i.e. return cling to the inner edge of framework 1 under the pulling function of extension spring 5, expand rope passage 2, complete this utility model and press from both sides and unclamp action after dead stop.
Certainly, this utility model may be used without the mode manually of routine, utilizes the operating mechanism such as screw rod, jackscrew, opens pressing from both sides dead this utility model.
Claims (9)
1. a dead electricity trigger-type steel wire braking, it is characterized in that, it is provided with two braking fixture blocks that sandwich serface is relative in the frame, rope passage is formed between the sandwich serface of two braking fixture blocks, the sandwich serface of described braking fixture block is provided with friction plate, having at least one in two described braking fixture blocks is movable clip block, is provided with and pulls movable clip block so that its back side abuts in the extension spring of framework inner edge between described movable clip block and described framework；The relative sandwich serface in the back side of described movable clip block is inclined-plane, makes movable clip block constitute wedge；The inner edge of the described framework fitted with the back side of described movable clip block is the inclined-plane being harmonious with the described movable clip block back side；It is provided with longitudinal chute at the back side of described movable clip block, it is provided with the Breake Electromagnet that dead electricity triggers on said frame, equipped with the compression spring promoting armature movement and the brake pushrod linked with armature on described Breake Electromagnet, the front end of described brake pushrod acts against in the back side chute of described movable clip block.
2. dead electricity trigger-type steel wire braking according to claim 1, is characterized in that, the chevron face of the middle part projection formed is intersected at the back side of described movable clip block by two towards contrary inclined-plane；The inner edge of described framework is by two taper surfaces that the crossing middle part formed is recessed towards contrary inclined-plane.
3. dead electricity trigger-type steel wire braking according to claim 1 and 2, is characterized in that, is connected to the energy-storage capacitor providing delay working power supply in the control circuit of described Breake Electromagnet.
4. dead electricity trigger-type steel wire braking according to claim 1 and 2, is characterized in that, a braking fixture block relative with described movable clip block is fixing fixture block, and described fixing fixture block is fixed in described framework.
5. dead electricity trigger-type steel wire braking according to claim 1 and 2, is characterized in that, two described braking fixture blocks in described framework are movable clip block, and the structure of two described movable clip blocks is identical, for being symmetrical arranged in described framework.
6. dead electricity trigger-type steel wire braking according to claim 5, is characterized in that, is symmetrically arranged with two Breake Electromagnets on said frame, and each described Breake Electromagnet drives a described movable clip block action by brake pushrod.
7. dead electricity trigger-type steel wire braking according to claim 5, is characterized in that, is provided with a Breake Electromagnet and a set of link gear on said frame, and described link gear connects with described Breake Electromagnet；Described Breake Electromagnet drives a described movable clip block action by brake pushrod, and drives another described movable clip block action in opposite directions by described link gear simultaneously.
8. the dead electricity trigger-type steel wire braking according to claim 1,2,6 or 7, is characterized in that, is provided with roller, bearing or semielliptic spring plate at the back side of described movable clip block.
9. the dead electricity trigger-type steel wire braking according to claim 1,2,6 or 7, is characterized in that, is provided with bearing or roller on the front end of described brake pushrod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051701.2U CN205367380U (en) | 2016-01-20 | 2016-01-20 | Lose electricity and trigger formula wire rope stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051701.2U CN205367380U (en) | 2016-01-20 | 2016-01-20 | Lose electricity and trigger formula wire rope stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205367380U true CN205367380U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620051701.2U Expired - Fee Related CN205367380U (en) | 2016-01-20 | 2016-01-20 | Lose electricity and trigger formula wire rope stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205367380U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480812A (en) * | 2016-01-20 | 2016-04-13 | 韩伍林 | Power-losing trigger type steel wire rope brake and braking method thereof |
| CN106144827A (en) * | 2016-08-24 | 2016-11-23 | 东南电梯股份有限公司 | A kind of bidirectional safe forceps system preventing door-opened elevator state car accidental movement |
| CN107676407A (en) * | 2017-09-19 | 2018-02-09 | 浙江零跑科技有限公司 | A kind of electric vehicle brake device and its brakes |
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
-
2016
- 2016-01-20 CN CN201620051701.2U patent/CN205367380U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480812A (en) * | 2016-01-20 | 2016-04-13 | 韩伍林 | Power-losing trigger type steel wire rope brake and braking method thereof |
| CN105480812B (en) * | 2016-01-20 | 2020-04-28 | 石家庄五龙制动器股份有限公司 | Power-loss trigger type steel wire rope brake and braking method thereof |
| CN106144827A (en) * | 2016-08-24 | 2016-11-23 | 东南电梯股份有限公司 | A kind of bidirectional safe forceps system preventing door-opened elevator state car accidental movement |
| CN106144827B (en) * | 2016-08-24 | 2018-08-07 | 东南电梯股份有限公司 | A kind of bidirectional safe forceps system preventing door-opened elevator state car accidental movement |
| CN107676407A (en) * | 2017-09-19 | 2018-02-09 | 浙江零跑科技有限公司 | A kind of electric vehicle brake device and its brakes |
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170803 Address after: High tech Zone of Hebei province Shijiazhuang City Xinshi road 050000 No. 375 Patentee after: Shijiazhuang Wulon brake Co., Ltd Address before: Hebei province Shijiazhuang City Xinshi road 050000 No. 375 stone building C block 501 Wulong brake Limited by Share Ltd Patentee before: Han Wulin |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20210120 |