CN105819302A - Rope gripper - Google Patents
Rope gripper Download PDFInfo
- Publication number
- CN105819302A CN105819302A CN201610372321.3A CN201610372321A CN105819302A CN 105819302 A CN105819302 A CN 105819302A CN 201610372321 A CN201610372321 A CN 201610372321A CN 105819302 A CN105819302 A CN 105819302A
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- Prior art keywords
- brake
- movable clip
- rope
- clip block
- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/24—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by acting on guide ropes or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to a rope gripper. The rope gripper is structurally characterized in that two brake clamping blocks of which clamping surfaces are opposite to each other are arranged in a rack; at least one of the two brake clamping blocks is a movable clamping block; the back of each movable clamping block comprises an upper inclined plane and a lower inclined plane, so that the movable clamping block forms a compound wedge-shaped block formed by connecting an upper wedge-shaped body and a lower edge-shaped body; an elastic draw-off mechanism for drawing off the movable clamping blocks is arranged on the rack; upper transverse shafts and lower transverse shafts are arranged on the rack; an axial plane of each upper transverse shaft is opposite to an upper inclined plane of the back of the corresponding movable clamping block; an axial plane of each lower transverse shaft is opposite to a lower inclined plane of the back of the corresponding movable clamping block; and according to the setting positions of the upper transverse shafts and the lower transverse shafts, the movable clamping blocks can generate translation towards the direction of the clamping surface in the upward or downward moving process, so that a rope passing through a rope channel is clamped and stopped. The rope gripper disclosed by the invention serves as a safety brake; and a car or a hoisted heavy object can be immediately gripped by the rope gripper no matter upward heading or downward rolling, thereby preventing malignant consequence caused by unforeseen circumstances.
Description
Technical field
The present invention relates to a kind of wire stopper, specifically a kind of rope brake.
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; in " elevator manufacture and installation safety standard " No. 1 amendment of standard of the up-to-date promulgation of China, add elevator 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 generally comprises 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 the most 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, the most all it is not provided with installing installation site and the redundant space of the second set brake.
The second way is to use bidirectional safety tongs device.Traditional bidirectional safety tongs being dependent on machinery triggering, i.e. 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 in the case of the non-hypervelocity 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 triggering pattern when system cut-off, car generation accidental displacement, cannot effectively trigger safety tongs action；Therefore, the electric magnet of bidirectional safety tongs triggers pattern and must use dead electricity triggering pattern.And the drawback that dead electricity triggers pattern 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.After so the situation in 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 the highest, 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 brake(-holder) block can occur eccentric wear；Two be steel wire braking be also the mode of operation that hypervelocity triggers, and be unidirectional hypervelocity action.So under not having overspeed situation, if car generation accidental movement, steel wire braking will not trigger action.Therefore, steel wire braking also must use electromagnetism to trigger and real could there are currently no the protection act that under overspeed situation, car moves.But electromagnetism triggers pattern and still there are the dilemma problem as above-mentioned bidirectional safety tongs.
Visible, owing to the existing safety guard preventing accidental movement of elevator cage all there are the biggest technology or uses defect, thus the most all can not meet the actually used needs of elevator.
Summary of the invention
It is an object of the invention to provide a kind of rope brake, to solve the problem that existing deadman's brake can not meet the elevator safety actually used needs of protection.
The object of the present invention is achieved like this: a kind of rope brake, two braking fixture blocks that sandwich serface is relative it are provided with in 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, the back side of described movable clip block includes ramp and lower inclined plane, described ramp is fore-and-aft tilt face with described lower inclined plane relative to sandwich serface, and makes movable clip block constitute the compound wedge of upper sphenoid and lower sphenoid Contiuum type；Described frame is provided with the elastic draw-off mechanism of tractive movable clip block, to pull described movable clip block to be positioned at the middle position up and down of frame under normal conditions；Being provided with transverse axis and lower transverse axis in described frame, the axial plane of upper transverse axis is relative with the ramp at the movable clip block back side, and the axial plane of lower transverse axis is relative with the lower inclined plane at the movable clip block back side；The position that arranges of described upper transverse axis and described lower transverse axis is to make movable clip block can produce the translation to sandwich serface direction during moving up or down, so that being pressed from both sides dead stop by the rope of rope passage.
It is domatic that the ramp at the movable clip block back side and lower inclined plane intersect in the middle part of composition the recessed cone in protruding chevron face or middle part.
The present invention two described braking fixture blocks in frame, one is movable clip block, and another is fixing fixture block, and described fixing fixture block is fixed in described frame.
The present invention two described braking fixture blocks in frame are movable clip block, and the structure of two described movable clip blocks is identical, is symmetricly set in described frame；The frame at each movable clip block back side is provided with transverse axis and lower transverse axis.
The present invention has a longitudinal chute placed in the middle at the back side of described movable clip block, and longitudinal groove bottom of chute is paralleled with the sandwich serface of movable clip block；Being provided with brake activating mechanism outside the support body of described frame, be provided with compression spring and the brake pushrod promoted by described compression spring on described brake activating mechanism, the front end of described brake pushrod acts against in described longitudinal chute of described movable clip block.
The present invention can be symmetrically arranged with two brake activating mechanism in described frame, and each described brake activating mechanism drives a described movable clip block action by brake pushrod.
The present invention also can arrange a brake activating mechanism and a set of link gear in described frame, and described link gear connects with described brake activating mechanism；Described brake activating mechanism 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 present invention can use on elevator and crane gear as deadman's brake, to prevent car/weight accidental movement.
The present invention is by arranging the block movable clip block of compound wedge shape and movable clip block carrying out the upper and lower transverse axis that translation promotes in rope brake frame, so, under normal circumstances, movable clip block is pulled at the middle position up and down of frame by elastic draw-off mechanism, rope passage can be made to keep the aperture of maximum, run in the guide the drag rope in rope passage and 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 and hoisting heavy because foundation brakes is malfunctioning in elevator or crane gear，Can be under the control of elevator or the inspection and control system of crane gear，Under the promotion of the brake activating mechanism also can installed on this rope brake，Ordering about brake pushrod promotes the movable clip block in rope brake to produce translation motion to sandwich serface，The aperture forcing rope passage diminishes，Brake clamping force is produced by the drag rope to walking of the friction plate on braking fixture block，And this brake clamping force reacts on movable clip block，Movable clip block can be driven to overcome the active force of elastic draw-off mechanism，Mobile to the direction of motion (above or below rope brake) of drag rope，Now movable clip block is by under inclined-plane slip effect on transverse axis axial plane，Translate to sandwich serface direction further，The folder rope gap making rope passage reduces further，Until pressing from both sides dead drag rope，Thus achieve the reliable of drag rope and the quickly dead braking of folder，Achieve the protective effect of safety arrestment，Make lift car or hoisting heavy that starting stage of car either to occur upwards to rush to summit or slip downwards，Dead stop can be pressed from both sides immediately by this rope brake，Thus avoid and 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.
If elevator or crane gear occur supply line's fault or normal situation about having a power failure, then the foundation brakes dead electricity braking of elevator or crane gear, clamps haulage cable；And this rope brake also can clamp steel wire rope by braking fixture block under the effect of brake activating mechanism.But owing to haulage cable clamping braking is first about to by now elevator or crane gear by foundation brakes, haulage cable stop motion, therefore, the braking maneuver of this rope brake will not produce and make movable clip block form situation about shifting up and down under the drive of friction force of steel rope, thus the movable clip block situation at the dead drag rope of frame inner clip also would not occurs.After restoring electricity, brake activating mechanism in this rope brake obtains electric return, movable clip block can under the effect of elastic draw-off mechanism self-resetting, this rope brake is made to automatically open up, elevator or crane gear can recover normally to work voluntarily, thus avoid after supply line restores electricity, need the restorative operation that elevator or crane gear are carried out to be resetted manually by platform, thus provide the biggest 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.
The invention have the characteristics that:
1, the initial normal pressure that movable clip block is applied by control system or brake activating mechanism is utilized, so that braking fixture block clamps drag rope, the frictional force formed when moving with drag rope and between friction plate drives under the clamping action of movable clip block transverse axis over/under, folder dead line rope passage, make drag rope stop, thus reach the purpose of safety arrestment.Safety brake only when drag rope still occur after the normal brake application of foundation brakes improper mobile time, just implement to press from both sides dead action to the drag rope in rope brake, it is achieved the defence of safety arrestment and protection purpose.
2, in the case of control system or brake activating mechanism applying normal pressure make this rope brake keep clamp position, after recovering line powering, this rope brake clamp pressure to drag rope can be released voluntarily, make drag rope current in rope brake recover can run normally duty, thus after efficiently solving the generation of large-area power-cuts situation, elevator or crane gear can not self-healing problems.
3, this rope brake 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 has deadman's brake installation site to be difficult to the difficult problem installed.
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 clamping rope strand state.
Fig. 5 is the structural representation of embodiment 2.
Fig. 6 is the structural representation of embodiment 3.
Fig. 7 is the structural representation of embodiment 4.
In figure: 1, frame, 2, rope passage, 3, friction plate, 4, movable clip block, 5, extension spring, 6, longitudinal chute, 7, Breake Electromagnet, 71, yoke, 72, armature, 73, solenoid, 74, compression spring, 75, brake pushrod, 8, upper transverse axis, 9, lower transverse axis, 10, steel wire rope, 11, fixing fixture block.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, frame 1 is the plate and frame comprehensive architecture being encircled into by two end plates and two lateral shelf plates, is provided with two braking fixture blocks, forms rope passage 2 between the sandwich serface of two braking fixture blocks in frame 1.Two braking fixture blocks are movable clip block 4, and the structure of two movable clip blocks 4 is identical, upright and be symmetrical arranged (Fig. 1) in frame 1.The opposite face of two movable clip blocks 4 is sandwich serface, and the sandwich serface of two movable clip blocks 4 is parallel to each other, and is provided with friction plate 3 on the sandwich serface of each movable clip block 4.Gap between the sandwich serface of two movable clip blocks 4 is the rope passage 2 walking steel wire rope, and steel wire rope 10 is walked (Fig. 3) in the frame 1 of this rope brake up and down.In Fig. 1, the back side (opposing in the one side of sandwich serface) of movable clip block 4 includes ramp and lower inclined plane, ramp is fore-and-aft tilt face with lower inclined plane relative to sandwich serface, and makes movable clip block form a kind of Contiuum type compound with lower sphenoid by upper sphenoid to be combined wedge.The ramp at movable clip block 4 back side and lower inclined plane intersect chevron face protruding in the middle part of composition, and ramp and lower inclined plane can be symmetrical above and below.Viewed from the side, two movable clip blocks 4 are combined into a fusiformis body.
Frame 1 is provided with the elastic draw-off mechanism of tractive movable clip block.Elastic draw-off mechanism can be some extension springs 5, on the edge of the upper and lower end that one end of extension spring is connected to movable clip block 4, the other end is connected in frame 1, is formed and movable clip block 4 is pulled situation up and down, to pull movable clip block 4 to be positioned at the middle position up and down of frame 1 under normal conditions.
Elastic draw-off mechanism can also be the combination of some springs and extension spring.Wherein extension spring is for hanging in frame 1 by movable clip block 4, spring is for supporting between the sandwich serface being connected to two movable clip blocks 4, i.e. have, on the plate face of the sandwich serface of two movable clip blocks 4, the hole that some apertures are relative, the hole that often group aperture is relative connects a spring, thus forms the support to two movable clip blocks 4 and link structure.The effect of spring: one is normality aperture and the without hindrance current function of basic rope that can ensure that rope passage 2, two be can be compressed at rope passage 2 and be eliminated (such as fixture block return or the situation such as restore electricity) in compression stress after, in order to strut rope passage 2, recover the current function of rope passage 2.
In Fig. 1, between two lateral shelf plates of frame 1, it is provided with transverse axis 8 and two lower transverse axis 9 on two, the axis parallel of four transverse axis, and, each movable clip block 4 back side is respectively provided with a upper transverse axis 8 and a lower transverse axis 9.The axial plane of upper transverse axis 8 is relative with the ramp at movable clip block 4 back side, and the axial plane of lower transverse axis 9 is relative with the lower inclined plane at movable clip block 4 back side.The position that arranges of upper transverse axis 8 is to make movable clip block 4 can produce the translation to sandwich serface direction during moving up；The position that arranges of lower transverse axis 9 is to make movable clip block 4 can produce the translation to sandwich serface direction during moving down.
From Fig. 1, Fig. 3, having a position longitudinal chute 6 placed in the middle at the back side of movable clip block 4, longitudinal groove bottom of chute is paralleled with the sandwich serface of movable clip block 4.This longitudinal direction chute can be up/down perforation groove, it is also possible to be the blind mouth groove of a section offered between two parties.For which, should be can ensure that movable clip block 4 can arrive top dead centre and lower dead center after brake pushrod inserts.Longitudinal groove bottom of chute 6 is paralleled with the sandwich serface of movable clip block 4.
In Fig. 1, the outer middle side part at two end plates of frame 1 each fixes a set of brake activating mechanism, the preferred electromagnetic brake of this brake activating mechanism.Electromagnetic brake 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 (certainly may also be arranged on the outside of Breake Electromagnet), and brake pushrod 75 passes 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 penetrates frame 1, acts against the groove bottom of longitudinal chute 6, with under the action of the compression spring 74, movable clip block 4 is implemented forward motive force.The brake pushrod 75 of frame 1 both sides towards relatively, and arrange as far as possible point-blank.
Breake Electromagnet 7 can be selected for dead electricity trigger electromagnet, is connected to provide the energy-storage capacitor of 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 to lag behind the movement time of this rope brake the movement time of traction machine foundation brakes, thus avoid owing to this rope brake and foundation brakes action simultaneously make the too quickly inertia injury caused of elevator brake.
The present invention also can only arrange a brake activating mechanism in frame 1, installs a set of link gear the most 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.
Owing to the rope brake in on-position also has certain clamping force (spring 74 and the effect of brake pushrod 75 by compression and produce) to haulage cable, friction plate 3 on two movable clip blocks 4 has braking friction to the steel wire rope 10 walked, now, when the situation of elevator generation car accidental movement (i.e. foundation brakes is malfunctioning), steel wire rope 10 starts or continues to mobile, above-mentioned braking friction reacts on movable clip block 4, and movable clip block 4 can be driven to move up or down.If two movable clip blocks 4 move up, then two by upper rack both sides go up the clamping action of transverse axis 8, make two movable clip blocks 4 be forced to rope passage 2 generation to translate, make rope passage 2 narrower, thus by steel wire rope 10 Quick-clamped, folder extremely (Fig. 4), thus achieve, after elevator foundation brakes is malfunctioning, the reliable and quick of steel wire rope is pressed from both sides dead stop.
If two movable clip blocks 4 move down, then by the clamping action of two lower transverse axis 9 of frame lower both sides, it is possible to so that two movable clip blocks 4 are forced to rope passage 2 and produce and translate, make rope passage 2 narrower, thus by dead to steel wire rope 10 Quick-clamped, folder.This rope brake thus can be made to play the protective effect of the due security protection of deadman's brake, it is to avoid upwards rush to summit because of the malfunctioning car caused of elevator foundation brakes or slip downwards the generation of contingency of car.
Embodiment 2
As it is shown in figure 5, the structure of the present embodiment is essentially identical with the structure of embodiment 1, in frame 1 be also Dual Action fixture block structure is set, similarly, in frame 1, correspondence is provided with two brake activating mechanism.Two brake activating mechanism all include Breake Electromagnet 7, compression spring 74 and brake pushrod 75 etc., and Breake Electromagnet 7 uses the electromagnetic brake that dead electricity triggers.The front end of the brake pushrod 75 in two brake activating mechanism acts against in longitudinal chute 6 at movable clip block 4 back side of respective side respectively, performs the trigger action of safety arrestment.
Except that, frame 1 is provided with transverse axis 8 and four lower transverse axis 9 on four, the most each transverse axis arranges position and is provided with two parallel transverse axis, two transverse axis at each position form one group of clamper transverse axis, and the position that arranges of every two transverse axis in group is that the loxosis corresponding with the gradient of movable clip block 4 inclined surface is arranged.Position is set at each transverse axis the purpose of multiple transverse axis is set, be in order to formed movable clip block is continued spacing, thus effectively reduce the movable clip block 4 beat in shifting process, improve the rope passage dead stopping function of folder to drag rope.
Embodiment 3
As shown in Figure 6, the basic structure of the present embodiment is roughly the same with the structure of embodiment 1, and main distinction point is two the braking fixture blocks arranged in frame 1, and one is movable clip block 4, and another is fixing fixture block 11.Fixing fixture block 11 is fixedly mounted in frame 1, and also without arranging brake activating mechanism, it is carried out triggering braking, therefore, the present embodiment is only provided with brake activating mechanism on the frame end plate of movable clip block 4 side, and movable clip block 4 applies the extruding force that forward braking triggers.
In the present embodiment, the upper transverse axis 8 being arranged in frame 1 and lower transverse axis 9 are that twin shaft arranges structure as in embodiment 2, further, often two transverse axis in group are that the loxosis corresponding with the slope of movable clip block 4 is arranged, spacing to continuing of movable clip block 4 to be formed.Certainly, upper transverse axis 8 and lower transverse axis 9 may be used without such single cross shaft structure in embodiment 1.
Embodiment 4
As it is shown in fig. 7, the structure of the present embodiment is essentially identical with the structure of embodiment 1, in frame 1 be also Dual Action fixture block structure is set, similarly, in frame 1, correspondence is provided with two brake activating mechanism.Two brake activating mechanism all include Breake Electromagnet 7, compression spring and brake pushrod etc., and Breake Electromagnet 7 uses the electromagnetic brake that dead electricity triggers.The front end of the brake pushrod in two brake activating mechanism acts against in longitudinal chute at movable clip block 4 back side of respective side respectively, performs the trigger action of safety arrestment.
The present embodiment different a bit, the back side of movable clip block 4 intersected by ramp and lower inclined plane form in the middle part of recessed cone domatic, viewed from the side, two movable clip blocks 4 are combined into a waisting body.Transverse axis 8 and two lower transverse axis 9 on two it are provided with between two lateral shelf plates of frame 1, the axis parallel of four transverse axis, and, each movable clip block 4 back side is respectively provided with a upper transverse axis 8 and a lower transverse axis 9.The axial plane of upper transverse axis 8 is relative with the ramp at movable clip block 4 back side, and the axial plane of lower transverse axis 9 is relative with the lower inclined plane at movable clip block 4 back side.The position that arranges of upper transverse axis 8 is to make movable clip block 4 can produce the translation to sandwich serface direction during moving down；The position that arranges of lower transverse axis 9 is to make movable clip block 4 can produce the translation to sandwich serface direction during moving up.
Corresponding to the movable clip block structure that the cone of embodiment 4 is domatic, the present invention may be designed as being similar to a movable clip block of embodiment 3 and the rope brake structure of a fixing fixture block；The position limiting structure it can also be designed the anti-beat of often place's twin shaft or the multiaxis of similar embodiment 2 continues.
Rope brake of the present invention, as deadman's brake, can carry out security protection braking in the following manner:
1, the steel wire rope 10 by lifting car or weight passes the rope passage 2 of rope brake, and the control circuit of rope brake brake activating mechanism is connected in working power.
2, when traction machine foundation brakes dead electricity is braked, this rope brake 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 rope brake postpone 0.1 5 seconds.
3, the switching-off action time of rope brake is adjusted less than traction machine or the switching-off action time of hoist engine foundation brakes, when the foundation brakes of traction machine or hoist engine is energized and opens, rope brake is energized simultaneously, but within 0.05 0.5 seconds, opens prior to the foundation brakes of traction machine or hoist engine.
4, when traction machine or hoist engine proper motion, the movable clip block 4 in rope brake is in middle position, and now, the aperture of the rope passage 2 between two braking fixture blocks is maximum, makes steel wire rope 10 to walk without barrier.
5, when the foundation brakes normal brake application of traction machine or hoist engine, rope brake deferred action, movable clip block 4 is implemented forward extrusion power by brake pushrod 75 in rope brake 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 of stop.
6, when the foundation brakes of traction machine or hoist engine is normally opened, rope brake is shorter than the switching-off action time of the foundation brakes of traction machine or hoist engine because of its switching-off action time, and make adhesive action prior to the foundation brakes of traction machine or hoist engine, eliminate the forward extrusion power to movable clip block 4, make movable clip block 4 reverse under the effect of extension spring 5 or spring, expand rope passage 2.
7, after traction machine foundation brakes is braked, steel wire rope starts action again once after not stopping action or stopping, the steel wire rope 10 being clamped in rope brake rope passage 2 drives movable clip block 4 to produce with steel wire rope action in the same direction, movable clip block 4 is under the clamping action of upper transverse axis 8 or lower transverse axis 9, steel wire rope 10 in rope passage 2 is produced bigger clamping force, thus by should the steel wire rope quick clip of stop but accidental movement dead.
8, when there being emergency to need fast braking, disconnect the line switching between control circuit and energy-storage capacitor in rope brake, movable clip block 4 is implemented forward extrusion power by brake pushrod 75 in rope brake 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 10 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 by frictional force, movable clip block 4 is under the clamping action of upper transverse axis 8 or lower transverse axis 9, steel wire rope 10 in rope passage 2 is produced bigger clamping force, thus by the dead stop of rope cramp of motion.
9, when traction machine or the Failure elimination of the foundation brakes of hoist engine or after the cause of accident of brake hard eliminates, connect working power, the foundation brakes of traction machine or hoist engine is opened, the Breake Electromagnet 7 of rope brake obtains electric adhesive, eliminates compression spring 74 and the brake pushrod 75 forward extrusion power to movable clip block 4；Control traction machine by point driving switch the most again or hoist engine inverts, now, the steel wire rope 10 being braked the fixture block dead stop of folder produces counteragent trend, braking fixture block is applied reverse active force, movable clip block 4 is made to loosen and action round about, the action of gravity of the movable clip block of return under the pulling function of extension spring 5, or dependence simultaneously and return, thus expand rope passage 2, complete rope brake and press from both sides and unclamp action after dead stop.
Certainly, the present invention may be used without manual hand manipulation's mode of routine, utilizes the operating mechanism such as screw rod, jackscrew, opens pressing from both sides dead rope brake.
Claims (7)
1. a rope brake, two braking fixture blocks that sandwich serface is relative it are provided with in 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, the back side of described movable clip block includes that ramp and lower inclined plane, described ramp and described lower inclined plane are fore-and-aft tilt face relative to sandwich serface, and makes movable clip block constitute the compound wedge of upper sphenoid and lower sphenoid Contiuum type；Described frame is provided with the elastic draw-off mechanism of tractive movable clip block, to pull described movable clip block to be positioned at the middle position up and down of frame under normal conditions；It is characterized in that, being provided with transverse axis and lower transverse axis in described frame, the axial plane of upper transverse axis is relative with the ramp at the movable clip block back side, and the axial plane of lower transverse axis is relative with the lower inclined plane at the movable clip block back side；The position that arranges of described upper transverse axis and described lower transverse axis is to make movable clip block can produce the translation to sandwich serface direction during moving up or down, so that being pressed from both sides dead stop by the rope of rope passage.
Rope brake the most according to claim 1, is characterized in that, it is domatic that the ramp at the movable clip block back side and lower inclined plane intersect in the middle part of composition the recessed cone in protruding chevron face or middle part.
Rope brake the most according to claim 1, is characterized in that, two described braking fixture blocks in frame, and one is movable clip block, and another is fixing fixture block, and described fixing fixture block is fixed in described frame.
Rope brake the most according to claim 1, is characterized in that, two described braking fixture blocks in frame are movable clip block, and the structure of two described movable clip blocks is identical, is symmetricly set in described frame；The frame at each movable clip block back side is provided with transverse axis and lower transverse axis.
Rope brake the most according to claim 4, is characterized in that, has a longitudinal chute placed in the middle at the back side of described movable clip block, and longitudinal groove bottom of chute is paralleled with the sandwich serface of movable clip block；Being provided with brake activating mechanism outside the support body of described frame, be provided with compression spring and the brake pushrod promoted by described compression spring on described brake activating mechanism, the front end of described brake pushrod acts against in described longitudinal chute of described movable clip block.
Rope brake the most according to claim 5, is characterized in that, is symmetrically arranged with two brake activating mechanism in described frame, and each described brake activating mechanism drives a described movable clip block action by brake pushrod.
Rope brake the most according to claim 5, is characterized in that, is provided with a brake activating mechanism and a set of link gear in described frame, and described link gear connects with described brake activating mechanism；Described brake activating mechanism 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372321.3A CN105819302B (en) | 2016-05-31 | 2016-05-31 | Rope brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372321.3A CN105819302B (en) | 2016-05-31 | 2016-05-31 | Rope brake |
Publications (2)
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| CN106586764A (en) * | 2016-12-28 | 2017-04-26 | 日立电梯（中国）有限公司 | Elevator and door-opening shearing preventing device thereof |
| CN106744451A (en) * | 2017-01-25 | 2017-05-31 | 韩伍林 | Lock collar device |
| CN106740889A (en) * | 2016-11-21 | 2017-05-31 | 广西大学 | A kind of cable sport car armful rope stop device |
| CN110104573A (en) * | 2019-05-06 | 2019-08-09 | 中启胶建集团有限公司 | A kind of lifting appliance structure that architectural engineering is strong with secured performance |
| CN110789956A (en) * | 2019-10-30 | 2020-02-14 | 河北华丰能源科技发展有限公司 | Belt non-return device |
| CN110817275A (en) * | 2019-12-03 | 2020-02-21 | 安徽新岗农业科技开发有限公司 | Slide is used in grain oil production |
| CN117068981A (en) * | 2023-10-18 | 2023-11-17 | 阿尔法起重机有限公司 | Anti-falling intelligent winch |
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| CN106740889B (en) * | 2016-11-21 | 2020-05-22 | 广西大学 | Cable holding and stopping device for cable treadmill |
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| CN110789956A (en) * | 2019-10-30 | 2020-02-14 | 河北华丰能源科技发展有限公司 | Belt non-return device |
| CN110817275A (en) * | 2019-12-03 | 2020-02-21 | 安徽新岗农业科技开发有限公司 | Slide is used in grain oil production |
| CN110817275B (en) * | 2019-12-03 | 2021-05-25 | 安徽新岗农业科技开发有限公司 | Slide is used in grain oil production |
| CN117068981A (en) * | 2023-10-18 | 2023-11-17 | 阿尔法起重机有限公司 | Anti-falling intelligent winch |
| CN117068981B (en) * | 2023-10-18 | 2024-01-30 | 阿尔法起重机有限公司 | Anti-falling intelligent winch |
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