CN105819302B - Rope brake - Google Patents
Rope brake Download PDFInfo
- Publication number
- CN105819302B CN105819302B CN201610372321.3A CN201610372321A CN105819302B CN 105819302 B CN105819302 B CN 105819302B CN 201610372321 A CN201610372321 A CN 201610372321A CN 105819302 B CN105819302 B CN 105819302B
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- Prior art keywords
- movable clip
- clip block
- brake
- rope
- horizontal axis
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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 present invention relates to a kind of rope brakes, its structure is that two opposite braking fixture blocks of sandwich serface are provided in rack, it is movable clip block to have at least one in two braking fixture blocks, the back side of movable clip block includes ramp and lower inclined plane, and movable clip block is made to form the compound wedge block of upper sphenoid and lower sphenoid Contiuum type；The elastic draw-off mechanism of drawing movable clip block is provided in rack, horizontal axis and lower horizontal axis are provided in rack, the axial plane of upper horizontal axis is opposite with the ramp at the movable clip block back side, and the axial plane of lower horizontal axis is opposite with the lower inclined plane at the movable clip block back side；The installation position of upper horizontal axis and lower horizontal axis is to make movable clip block that can generate the translation to sandwich serface direction during moving up or down, so that the rope by rope channel is pressed from both sides dead stop.The present invention can make car or hoisting heavy either rush to summit upwards or downward car slipping, can be pressed from both sides at once by this rope brake dead, it is therefore prevented that the generation of pernicious consequence caused by fortuitous event as deadman's brake.
Description
Technical field
The present invention relates to a kind of wire stopper, specifically a kind of rope brake.
Background technology
Recent years, elevator car slipping, rush to summit, the contingency at crouching bottom happens occasionally, to contain the generation of such accident,
The newest promulgation in China《Elevator manufactures and installation safety standard》Increasing elevator in the modification list of standard the 1st and should installing additional prevents sedan-chair
The Compulsory Feature of the safety guard of compartment accidental movement, with the pernicious casualties thing for preventing car accidental movement from generating
Therefore.
The existing safety guard for preventing car accidental movement generally comprises following three kinds of modes：
First way is in addition to increase a set of discrete brake on the basis of original brake, is set as redundancy
Meter.The drawbacks of this form is that, in case of the situation of car accidental movement under power failure, two brakes will be simultaneously
Action is not only added significantly to the qualified braking torque of original adjustment in this way, but also elevator brake can be made too quickly, to boarding personnel
Then it is likely to result in inertia injury.In addition, existing elevator structure, is generally all not provided with the installation of second set of brake of installation
Position and redundant space.
The second way is using bidirectional safety tongs device.Traditional is by the bidirectional safety tongs of machinery triggering, that is, is worked as
After car accidental movement exceeds the speed limit, by the triggering safety tongs action of mechanical limiter of speed, reliable operation, but mechanical limiter of speed can only
Safety tongs action could be triggered in an overspeed situation.Also be exactly electromagnet triggering bidirectional safety tongs, this bidirectional safety tongs
The safety tongs action in the case of the non-hypervelocity of car accidental movement can be achieved.And electromagnet triggering includes obtaining electric triggering and dead electricity triggering
Two kinds of operating modes.But electric triggering pattern is obtained when accidental displacement occurs for system cut-off, car, it cannot effectively trigger peace
Full pincers action；Therefore, the electromagnet triggering pattern of bidirectional safety tongs must use dead electricity to trigger pattern.And dead electricity triggering pattern
Drawback is that, in the normal power failure there is a situation where electric power system rather than car accidental movement, electromagnet can also trigger two-way
Safety tongs acts, and after restoring electricity, elevator cannot can automatically restore normal operation because safety tongs when clamping down on, it is necessary to rely on
Maintenance personal is manually operated, and could open safety tongs, and elevator is made to restore normal operation.So in the situation of city large-area power-cuts
After generation, all elevators cannot all restore normal operation automatically, and such case is inconceivable.And if in every elevator
The upper automatic recovery device for increasing by a sets of safety tongs, such as fluid pressure drive device, setup cost are very high and less feasible
's.
Third mode is to increase steel wire braking.Existing steel wire braking is up-running over-speed protection device mostly,
The problems of its, first, unilateral action, eccentric wear can occur for brake(-holder) block；Second is that steel wire braking is also the work of hypervelocity triggering
Operation mode, and be unidirectional hypervelocity action.So under the situation of no overspeed, if accidental movement, steel occur for car
Cord brake will not trigger action.Therefore, steel wire braking also must use electromagnetism triggering could in fact there are currently no
The protection act that car moves under overspeed situation.But electromagnetism triggering pattern has been still remained as above-mentioned bidirectional safety tongs
Dilemma problem.
As it can be seen that due to the existing safety guard for preventing accidental movement of elevator cage all there are very big technology or
Using defect, thus it also all can not meet the actual use needs of elevator.
Invention content
It is an object of the invention to provide a kind of rope brake, elevator safety cannot be met to solve existing deadman's brake and prevented
The problem of shield actual use needs.
The object of the present invention is achieved like this：A kind of rope brake is provided with two opposite systems of sandwich serface in rack
Fixture block is moved, rope channel is formed between the sandwich serfaces of two braking fixture blocks, is provided with and rubs on the sandwich serface of the braking fixture block
Pad, to have at least one be movable clip block in two braking fixture blocks, the back side of the movable clip block include ramp and under
Inclined-plane, the ramp and the lower inclined plane are fore-and-aft tilt face with respect to sandwich serface, and make movable clip block form upper sphenoid with
The compound wedge block of lower sphenoid Contiuum type；The elastic draw-off mechanism of drawing movable clip block is provided in the rack, to draw
Move the middle position up and down that the movable clip block is located under normal conditions in rack；Horizontal axis and lower horizontal stroke are provided in the rack
Axis, the axial plane of upper horizontal axis is opposite with the ramp at the movable clip block back side, the axial plane of lower horizontal axis and the lower inclined plane at the movable clip block back side
Relatively；The installation position of the upper horizontal axis and the lower horizontal axis is to make movable clip block that can be produced during moving up or down
The raw translation to sandwich serface direction, so that the rope by rope channel is pressed from both sides dead stop.
The ramp and lower inclined plane at the movable clip block back side, which intersect, forms the concave cone in central raised chevron face or middle part
Slope surface.
The two braking fixture blocks of the present invention in rack, one is movable clip block, the other is fixing clip, described
Fixing clip is fixed in the rack.
Two in rack of the present invention braking fixture blocks are movable clip block, the structure phase of two movable clip blocks
Together, it is symmetricly set in the rack；Horizontal axis and lower horizontal axis are both provided in the rack at each movable clip block back side.
The present invention is provided with a longitudinal chute placed in the middle, the groove bottom of longitudinal chute and work at the back side of the movable clip block
The sandwich serface of dynamic fixture block is parallel；Brake activating mechanism is provided on the outside of the frame body of the rack, in the braking triggering machine
It is provided with compressed spring and the brake pushrod pushed by the compressed spring on structure, the front end of the brake pushrod acts against described
In the longitudinal chute of movable clip block.
The present invention can be symmetrical arranged in the rack there are two brake activating mechanism, and each brake activating mechanism leads to
It crosses brake pushrod and drives a movable clip block action.
The present invention can also set a brake activating mechanism and a set of linkage mechanism, the linkage mechanism in the rack
Connect with the brake activating mechanism；The brake activating mechanism drives a movable clip block to act by brake pushrod,
And another described movable clip block is driven to act in opposite directions by the linkage mechanism simultaneously.
The present invention can be used as deadman's brake, using on elevator and lifting equipment, to prevent car/weight from surprisingly moving
It is dynamic.
The present invention in rope brake rack by setting the block-like movable clip block of compound wedge shape and movable clip block being carried out
The upper and lower horizontal axis pushed is translated, in this way, under normal circumstances, movable clip block is pulled to the residence up and down of rack by elastic draw-off mechanism
At middle position, rope channel can be made to keep maximum aperture, running in the guide the drag rope in rope channel can keep accessible
It is current, the normal use of elevator or lifting equipment is not influenced.Car occurs when elevator or lifting equipment are because foundation brakes failure
During with the accidental movement situation of hoisting heavy, you can under the control of elevator or the inspection and control system of lifting equipment, also may be used
Under the promotion for the brake activating mechanism installed on this rope brake, brake pushrod is driven to push the movable clip block in rope brake to folder
Conjunction face generates translation motion, and the aperture of rope channel is forced to become smaller, by the friction plate on braking fixture block to the drag rope walked
Brake clamping force is generated, and this brake clamping force reacts on movable clip block, you can movable clip block is driven to overcome elastic drawing
The active force of mechanism, to the direction of motion of drag rope（Above or below rope brake）Mobile, movable clip block passes through oblique at this time
Under slip effect of the face on horizontal axis axial plane, further translated to sandwich serface direction, the rope-clamping gap for making rope channel is further
It reduces, until dead drag rope is pressed from both sides, it is thus achieved that the dead braking of reliable and quick folder to drag rope, realizes safe system
Dynamic protective effect, make lift car or hoisting heavy either occur to rush to summit upwards or downwards car slipping starting stage, all
Can dead stop, the sedan-chair caused so as to avoid the foundation brakes failure because of elevator or lifting equipment be pressed from both sides by this rope brake immediately
Compartment or hoisting heavy are rushed to summit upwards or the generation of the contingencies such as car slipping downwards.
If elevator or lifting equipment have a power failure there is a situation where supply line's failure or normally, elevator or lifting equipment
Foundation brakes dead electricity braking, clamp haulage cable；And this rope brake also can pass through system under the action of brake activating mechanism
Dynamic fixture block clamps steel wire rope.But since elevator or lifting equipment are first to be about to haulage cable clamping braking by foundation brakes at this time
, haulage cable stop motion, therefore, the braking maneuver of this rope brake, which will not generate, makes movable clip block rub in steel wire rope
It wipes and forms situation about shifting up and down under the drive of power, thus movable clip block would not also occur in the dead drag rope of rack inner clip
Situation.After restoring electricity, the brake activating mechanism in this rope brake obtains electric return, and movable clip block can be in elastic draw-off mechanism
Under the action of self-resetting, automatically open this rope brake, elevator or lifting equipment can be self-healing normal work, so as to keep away
Exempt from after supply line restores electricity, needed the restorative behaviour manually resetted by platform to elevator or lifting equipment progress
Make, thus provide very big work for the deadman's brake for preventing car/weight accidental displacement on elevator or lifting equipment
It facilitates so that being installed additional on elevator or lifting equipment prevents the deadman's brake of car/weight accidental movement to be possibly realized.
The invention has the characteristics that：
1st, the initial malleation power applied using control system or brake activating mechanism to movable clip block, so that braking fixture block folder
Drag rope is handled, the frictional force formed between friction plate when being moved with drag rope drives movable clip block horizontal axis over/under
Clamping action under, press from both sides dead line rope channel, make drag rope stop, thus achieve the purpose that safety arrestment.Safety brake
Only when drag rope still occurs improper mobile after the normal brake application of foundation brakes, just to the traction in rope brake
Rope implements the dead action of folder, realizes the defence of safety arrestment and protection purpose.
2nd, it is extensive in the case where control system or brake activating mechanism application normal pressure make this rope brake keep clamp position
After multiple line powering, clamp pressure of this rope brake to drag rope can be voluntarily released, makes the traction rope to pass through in rope brake
Suo Huifu can normally run working condition, and rear elevator or lifting equipment are happened not so as to efficiently solve large-area power-cuts
It can self-healing problem.
3rd, this rope brake is simple in structure, and engaged position is small, can be mounted on by elevator(lift) machine room or traction machine, convenient for old structural reform
It makes, solves the problems, such as that existing elevator does not have deadman's brake installation site and is difficult to install.
Description of the drawings
Fig. 1 is the structure diagram of embodiment 1.
Fig. 2 is the side view of embodiment 1.
Fig. 3 is the vertical view of embodiment 1.
Fig. 4 is structure diagram of the embodiment 1 when clamping cord-like state.
Fig. 5 is the structure diagram of embodiment 2.
Fig. 6 is the structure diagram of embodiment 3.
Fig. 7 is the structure diagram of embodiment 4.
In figure：1st, rack, 2, rope channel, 3, friction plate, 4, movable clip block, 5, tension spring, 6, longitudinal chute, 7, braking electricity
Magnet, 71, yoke, 72, armature, 73, electromagnetic coil, 74, compressed spring, 75, brake pushrod, 8, upper horizontal axis, 9, lower horizontal axis,
10th, steel wire rope, 11, fixing clip.
Specific embodiment
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, rack 1 is the plate and frame stereoscopic frame being encircled by two end plates and two lateral shelf plates
Structure brakes fixture block in rack 1, rope channel 2 is formed between the sandwich serfaces of two braking fixture blocks there are two settings.Two brakings
Fixture block is movable clip block 4, and the structure of two movable clip blocks 4 is identical, upright in rack 1 and be symmetrical arranged（Fig. 1）.Two work
The opposite face of dynamic fixture block 4 is sandwich serface, and the sandwich serface of two movable clip blocks 4 is mutually parallel, in the sandwich serface of each movable clip block 4
On be provided with friction plate 3.Gap between the sandwich serface of two movable clip blocks 4 is the rope channel 2 for walking steel wire rope, steel wire rope
10 walk up and down in the rack 1 of this rope brake（Fig. 3）.In Fig. 1, the back side of movable clip block 4（Opposite to each other in the one side of sandwich serface）
Including ramp and lower inclined plane, ramp and lower inclined plane are fore-and-aft tilt face with respect to sandwich serface, and movable clip block is made to form one kind
By upper sphenoid and the compound compound wedge block of Contiuum type of lower sphenoid.The ramp and lower inclined plane at 4 back side of movable clip block intersect
Central raised chevron face is formed, ramp and lower inclined plane can be faces symmetrical above and below.Viewed from the side, two 4 groups of movable clip blocks
Synthesize a fusiformis body.
The elastic draw-off mechanism of drawing movable clip block is provided in rack 1.Elastic draw-off mechanism can be several tension springs
5, one end of tension spring is connected on the edge of the upper and lower end of movable clip block 4, and the other end is connected in rack 1, is formed and activity is pressed from both sides
The pulling situation up and down of block 4, with the middle position up and down that movable clip block 4 is pulled to be located under normal conditions in rack 1.
Elastic draw-off mechanism can also be the combination of several springs and tension spring.Wherein tension spring is for movable clip block 4 to be hung
It hangs in rack 1, spring is used to support between the sandwich serface for being connected to two movable clip blocks 4, i.e., in two movable clip blocks 4
The opposite hole in several apertures is had in the plate face of sandwich serface, a spring is connected in the opposite hole in every group of aperture, from
And it is formed to the supports of two movable clip blocks 4 and links structure.The effect of spring：First, it can ensure the normality of rope channel 2
Aperture and the without hindrance current function of basic rope, second is that can be compressed in rope channel 2 and be eliminated in compressing force（As fixture block returns
Position or situations such as restore electricity）Afterwards, to strut rope channel 2, restore the current function of rope channel 2.
In Fig. 1, there are two upper horizontal axis 8 and two lower horizontal axis 9, four horizontal axis for setting between two lateral shelf plates of rack 1
Axis parallel, also, each 4 back side of movable clip block sets a upper horizontal axis 8 and a lower horizontal axis 9 respectively.Upper horizontal axis 8
Axial plane is opposite with the ramp at 4 back side of movable clip block, and the axial plane of lower horizontal axis 9 is opposite with the lower inclined plane at 4 back side of movable clip block.Upper horizontal stroke
The installation position of axis 8 is to make movable clip block 4 that can generate the translation to sandwich serface direction during moving up；Lower horizontal axis 9
Installation position be to make movable clip block 4 that can generate the translation to sandwich serface direction during moving down.
By Fig. 1, Fig. 3 as it can be seen that being provided with a position longitudinal chute placed in the middle 6 at the back side of movable clip block 4, longitudinal chute
Groove bottom is parallel with the sandwich serface of movable clip block 4.The longitudinal chute can be up/down perforation slot or open up between two parties
One section of blind mouth slot.For which, should with can ensure after brake pushrod is inserted into movable clip block 4 can reach top dead centre and under
Stop.The groove bottom of longitudinal chute 6 is parallel with the sandwich serface of movable clip block 4.
In Fig. 1, a set of brake activating mechanism is respectively fixed in the outer middle side part of two end plates of rack 1, braking triggering
The preferred electromagnetic brake of mechanism.Electromagnetic brake includes Breake Electromagnet 7, compressed spring 74 and brake pushrod 75 etc..Braking electricity
Magnet 7 is made of the part such as yoke 71, armature 72 and electromagnetic coil 73；Compressed spring 74 is in the inner cavity of Breake Electromagnet 7
（Certainly it may also be arranged on the outside of Breake Electromagnet）, brake pushrod 75 passes through from yoke 71, armature 72 and compressed spring 74,
And keep linkage structure with armature 72.Brake pushrod 75 is perpendicular to the sandwich serface of movable clip block 4, and its front end penetrates rack 1,
The groove bottom of longitudinal chute 6 is acted against, under the action of the compression spring 74, to implement positive motive force to movable clip block 4.Rack
The direction of the brake pushrod 75 of 1 both sides is opposite, and sets as far as possible point-blank.
Dead electricity trigger electromagnet can be selected in Breake Electromagnet 7, and offer delay is connected in the control circuit of Breake Electromagnet 7
The energy-storage capacitor of working power.The effect of energy-storage capacitor is provided in short-term to Breake Electromagnet in dead electricity（About 0.1-
10 seconds）Working power so that Breake Electromagnet 7 powers off trigger action again after being delayed 0.1-5 seconds, in this way, this can be made
The actuation time of rope brake lags behind the actuation time of traction machine foundation brakes, so as to avoid due to this rope brake and foundation brakes
Inertia caused by action simultaneously makes elevator brake too quickly injures.
The present invention also can only set a brake activating mechanism in rack 1, in addition install a set of linkage mechanism again, link
Mechanism connects with brake activating mechanism；Brake activating mechanism drives a movable clip block 4 to act, and simultaneously by brake pushrod 75
Another movable clip block for driving offside by linkage mechanism acts in opposite directions, and two movable clip blocks 4 is made to realize that opposite clamping is moved
Make.
Since the rope brake in the braking state also has certain clamping force to haulage cable（Compressed 74 He of spring
The effect of brake pushrod 75 and generate）, the friction plate 3 on two movable clip blocks 4 has braking friction to the steel wire rope 10 walked,
At this point, when car accidental movement occurs for elevator（That is foundation brakes failure）Situation when, steel wire rope 10 starts or continues to move, on
The braking friction stated reacts on movable clip block 4, you can movable clip block 4 is driven to move up or down.If two activities
Fixture block 4 moves up, then by the clamping action of two upper horizontal axis 8 of upper rack both sides, is forced to two movable clip blocks 4
Rope channel 2 generates translation, makes rope channel 2 narrower, so as to which 10 Quick-clamped of steel wire rope, folder is dead（Fig. 4）, it is thus achieved that
To the reliable and quick dead stop of folder of steel wire rope after elevator foundation brakes failure.
If two movable clip blocks 4 move down, by the clamping action of two lower horizontal axis 9 of frame lower both sides,
Two movable clip blocks 4 can also be made to be forced to rope channel 2 and generate translation, make rope channel 2 narrower, so as to which steel wire rope 10 is fast
Speed clamps, folder is dead.This rope brake can thus be made to play the protective effect of the due security protection of deadman's brake, avoid because
Car caused by elevator foundation brakes failure is rushed to summit upwards or the generation of the contingency of car slipping downwards.
Embodiment 2
As shown in figure 5, the structure of the present embodiment and the structure of embodiment 1 are essentially identical, it is also Dual Action folder in rack 1
The setting structure of block, similarly, there are two brake activating mechanisms for corresponding installation in rack 1.Two brake activating mechanisms wrap
Include Breake Electromagnet 7, compressed spring 74 and brake pushrod 75 etc., the electromagnetic brake that Breake Electromagnet 7 is triggered using dead electricity.Two
The front end of brake pushrod 75 in a brake activating mechanism acts against the longitudinal chute at 4 back side of movable clip block of respective side respectively
In 6, the trigger action of safety arrestment is performed.
The difference is that there are four upper horizontal axis 8 and four lower horizontal axis 9, i.e., each horizontal axis installation positions for setting in rack 1
Place is respectively provided with there are two parallel horizontal axis, and two horizontal axis at each position form one group of clamper horizontal axis, and two in every group
The installation position of a horizontal axis is loxosis setting corresponding with the gradient of 4 inclined surface of movable clip block.In each horizontal axis, position is set
The purpose that place sets multiple horizontal axis is put, is to form the limiting that continues to movable clip block, exists so as to effectively reduce movable clip block 4
Beat in shifting process improves rope channel to the dead stopping function of the folder of drag rope.
Embodiment 3
As shown in fig. 6, the basic structure of the present embodiment is roughly the same with the structure of embodiment 1, main distinction point is in machine
The two braking fixture blocks set in frame 1, one is movable clip block 4, the other is fixing clip 11.Fixing clip 11 is fixedly mounted
In rack 1, and also without setting brake activating mechanism, triggering braking is carried out to it, therefore, the present embodiment is only in activity
Brake activating mechanism is provided on the rack end plate of 4 side of fixture block, applies the extruding force of positive braking triggering to movable clip block 4.
In the present embodiment, the upper horizontal axis 8 and lower horizontal axis 9 that are arranged in rack 1 are that the twin shaft as in embodiment 2 is set
Structure, also, two horizontal axis in every group are loxosis settings corresponding with the slope of movable clip block 4, to be formed to work
The limiting that continues of dynamic fixture block 4.Certainly, such list cross shaft structure in embodiment 1 can also be used in upper horizontal axis 8 and lower horizontal axis 9.
Embodiment 4
As shown in fig. 7, the structure of the present embodiment and the structure of embodiment 1 are essentially identical, it is also Dual Action folder in rack 1
The setting structure of block, similarly, there are two brake activating mechanisms for corresponding installation in rack 1.Two brake activating mechanisms wrap
Include Breake Electromagnet 7, compressed spring and brake pushrod etc., the electromagnetic brake that Breake Electromagnet 7 is triggered using dead electricity.Two systems
The front end of brake pushrod in dynamic trigger mechanism is acted against respectively in the longitudinal chute at 4 back side of movable clip block of respective side, is held
The trigger action of row safety arrestment.
The present embodiment it is different be a bit, the back side of movable clip block 4 intersected by ramp and lower inclined plane form middle part it is recessed
Under cone slope surface, viewed from the side, two movable clip blocks 4 are combined into a waisting body.It is set between two lateral shelf plates of rack 1
There are two upper horizontal axis 8 and two lower horizontal axis 9, the axis parallel of four horizontal axis, also, each 4 back side of movable clip block is set respectively
Put a upper horizontal axis 8 and a lower horizontal axis 9.The axial plane of upper horizontal axis 8 is opposite with the ramp at 4 back side of movable clip block, lower horizontal axis 9
Axial plane is opposite with the lower inclined plane at 4 back side of movable clip block.The installation position of upper horizontal axis 8 is to make movable clip block 4 in the mistake moved down
Cheng Zhongke generates the translation to sandwich serface direction；The installation position of lower horizontal axis 9 is to make movable clip block 4 during moving up
The translation to sandwich serface direction can be generated.
Corresponding to the movable clip block structure of the cone slope surface of embodiment 4, the present invention may be designed as one similar to embodiment 3
The rope brake structure of a movable clip block and a fixing clip；Often locate twin shaft or multiaxis it can also be designed to similar embodiment 2
Anti- beat continues position limiting structure.
Rope brake of the present invention can carry out security protection braking in the following manner as deadman's brake：
The 1st, the steel wire rope 10 for lifting by crane car or weight is passed through to the rope channel 2 of rope brake, and rope brake is braked and is triggered
The control circuit of mechanism is connected in working power.
2nd, when traction machine foundation brakes dead electricity is braked, this rope brake synchronizes dead electricity, but energy-storage capacitor is braking this moment
Electromagnet 7 provides the delay working power supply of 0.1-10 seconds, and rope brake is made to be braked after postponing 0.1-5 seconds.
3rd, the switching-off action time of adjustment rope brake is less than the switching-off action time of traction machine or hoist engine foundation brakes, when
When the energization of the foundation brakes of traction machine or hoist engine is opened, rope brake is powered simultaneously, but prior to the main system of traction machine or hoist engine
Dynamic device is opened for 0.05-0.5 second.
4th, when traction machine or hoist engine proper motion, the movable clip block 4 in rope brake is in middle position, at this point, two
The aperture for braking the rope channel 2 between fixture block is maximum, and steel wire rope 10 is allow to walk without barrier.
5th, when the foundation brakes normal brake application of traction machine or hoist engine, rope brake deferred action, the braking in rope brake
Push rod 75 implements forward extrusion power to movable clip block 4 under the action of the compression spring 74, and movable clip block 4 is made to press to rope channel 2
In steel wire rope 10, two braking fixture blocks clamp stop steel wire rope 10.
6th, when the foundation brakes of traction machine or hoist engine are normally opened, rope brake is shorter than traction because of its switching-off action time
The switching-off action time of the foundation brakes of machine or hoist engine, and to make actuation dynamic prior to the foundation brakes of traction machine or hoist engine
Make, eliminate the forward extrusion power to movable clip block 4, movable clip block 4 is made to reverse under the action of tension spring 5 or spring, expands rope
Channel 2.
7th, after traction machine foundation brakes are braked, steel wire rope starts to act Yi Dan do not stopped acting or stop again
When, the steel wire rope 10 being clamped in rope brake rope channel 2 drives movable clip block 4 to generate with steel wire rope action in the same direction, activity
Fixture block 4 generates the steel wire rope 10 in rope channel 2 clamping force of bigger under the clamping action of upper horizontal axis 8 or lower horizontal axis 9,
So as to by should the steel wire rope of stop but accidental movement quickly folder is dead.
8th, when there is emergency to need fast braking, the circuit between control circuit and energy-storage capacitor in rope brake is disconnected
It switchs, the brake pushrod 75 in rope brake implements forward extrusion power to movable clip block 4 under the action of the compression spring 74, makes activity
Fixture block 4 presses to the steel wire rope 10 in rope channel 2, the steel wire rope 10 that two braking fixture block clamping movements, the steel wire rope 10 of movement
Movable clip block 4 is driven to be moved upwardly or downwardly therewith by frictional force, movable clip block 4 is made in the clamper of upper horizontal axis 8 or lower horizontal axis 9
Under, the clamping force of bigger is generated to the steel wire rope 10 in rope channel 2, the dead stop of steel wire rope clamp so as to move.
9th, it is eliminated when the Failure elimination of traction machine or the foundation brakes of hoist engine or in the cause of accident of emergency braking
Afterwards, the foundation brakes opening of working power, traction machine or hoist engine is connected, the Breake Electromagnet 7 of rope brake obtains electric actuation, eliminates
Compressed spring 74 and brake pushrod 75 are to the forward extrusion power of movable clip block 4；Then again by point driving switch control traction machine or
Hoist engine inverts, at this point, being braked the generation counteragent trend of steel wire rope 10 that fixture block presss from both sides dead stop, braking fixture block is applied anti-
To active force, loosen movable clip block 4 and act round about, at the same under the pulling function of tension spring 5 return or according to
By movable clip block gravity and return, so as to expand rope channel 2, complete rope brake and press from both sides the release action after dead stop.
Certainly, conventional manual hand manipulation's mode can also be used in the present invention, will using operating mechanisms such as screw rod, jackscrews
Dead rope brake is pressed from both sides to open.
Claims (7)
1. a kind of rope brake is provided with two opposite braking fixture blocks of sandwich serface, the sandwich serface of two braking fixture blocks in rack
Between form rope channel, be provided with friction plate on the sandwich serface of the braking fixture block, have in two braking fixture blocks to
Few one is movable clip block, and the back side of the movable clip block includes ramp and lower inclined plane, the ramp and the lower inclined plane
It is fore-and-aft tilt face with respect to sandwich serface, and movable clip block is made to form the above compound wedge block of sphenoid and lower sphenoid Contiuum type；
The elastic draw-off mechanism of drawing movable clip block is provided in the rack, the movable clip block to be pulled to be located at machine under normal conditions
Middle position up and down in frame；It is characterized in that horizontal axis and lower horizontal axis, the axial plane of upper horizontal axis and work are provided in the rack
The ramp at the dynamic fixture block back side is opposite, and the axial plane of lower horizontal axis is opposite with the lower inclined plane at the movable clip block back side；The upper horizontal axis and institute
The installation position for stating lower horizontal axis is to make movable clip block that can be generated during moving up or down to the flat of sandwich serface direction
It moves, so that the rope by rope channel is pressed from both sides dead stop.
2. rope brake according to claim 1, it is characterized in that, the ramp and lower inclined plane at the movable clip block back side intersect composition
The concave cone slope surface in central raised chevron face or middle part.
3. rope brake according to claim 1, it is characterized in that, two braking fixture blocks in rack, one is activity
Fixture block, the other is fixing clip, the fixing clip is fixed in the rack.
4. rope brake according to claim 1, it is characterized in that, two braking fixture blocks in rack are movable folder
Block, the structure of two movable clip blocks is identical, is symmetricly set in the rack；In the rack at each movable clip block back side
It is both provided with horizontal axis and lower horizontal axis.
5. rope brake according to claim 4, it is characterized in that, be provided at the back side of the movable clip block one it is placed in the middle vertical
To sliding slot, the groove bottom of longitudinal chute is parallel with the sandwich serface of movable clip block；System is provided on the outside of the frame body of the rack
Dynamic trigger mechanism, is provided with compressed spring and the brake pushrod pushed by the compressed spring on the brake activating mechanism,
The front end of the brake pushrod is acted against in the longitudinal chute of the movable clip block.
6. rope brake according to claim 5, it is characterized in that, it is arranged symmetrically in the rack that there are two braking triggering machines
Structure, each brake activating mechanism drive a movable clip block to act by brake pushrod.
7. rope brake according to claim 5, it is characterized in that, in the rack setting there are one brake activating mechanism and
A set of linkage mechanism, the linkage mechanism connect with the brake activating mechanism；The brake activating mechanism passes through brake pushrod
The movable clip block action of driving one, and another described movable clip block is driven to move in opposite directions by the linkage mechanism simultaneously
Make.
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| CN201610372321.3A CN105819302B (en) | 2016-05-31 | 2016-05-31 | Rope brake |
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| CN201610372321.3A CN105819302B (en) | 2016-05-31 | 2016-05-31 | Rope brake |
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| CN105819302A CN105819302A (en) | 2016-08-03 |
| CN105819302B true CN105819302B (en) | 2018-06-29 |
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| CN201610372321.3A Active CN105819302B (en) | 2016-05-31 | 2016-05-31 | Rope brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106740889B (en) * | 2016-11-21 | 2020-05-22 | 广西大学 | Cable holding and stopping device for cable treadmill |
| CN106586764B (en) * | 2016-12-28 | 2019-06-04 | 日立电梯（中国）有限公司 | Elevator and its anti-opening shearing device |
| CN106744451B (en) * | 2017-01-25 | 2022-05-13 | 石家庄纽伦制动技术有限公司 | Lock dish ware |
| CN110104573B (en) * | 2019-05-06 | 2020-05-01 | 中启胶建集团有限公司 | Firm strong performance lifts by crane equipment structure for building engineering |
| CN110789956B (en) * | 2019-10-30 | 2021-05-14 | 河北华丰能源科技发展有限公司 | Belt non-return device |
| 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 |
| 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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