CN105480811A - Rope gripper - Google Patents
Rope gripper Download PDFInfo
- Publication number
- CN105480811A CN105480811A CN201610035448.6A CN201610035448A CN105480811A CN 105480811 A CN105480811 A CN 105480811A CN 201610035448 A CN201610035448 A CN 201610035448A CN 105480811 A CN105480811 A CN 105480811A
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- movable clip
- clip block
- brake
- framework
- wire holder
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- 230000003213 activating effect Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 32
- 239000010959 steel Substances 0.000 description 32
- 230000005611 electricity Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000002457 bidirectional effect Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to a rope gripper. According to the structure of the rope gripper, two braking and clamping blocks with opposite clamping faces are arranged in a frame. A rope channel is formed between the clamping faces of the two braking and clamping blocks. The clamping faces of the braking and clamping blocks are provided with friction plates. At least one of the braking and clamping blocks is a movable clamping block capable of moving in the frame up and down. Tension springs capable of pulling the movable clamping blocks so that the back faces of the movable clamping blocks can be attached to the inner edge of the frame are arranged between the movable clamping blocks and the frame. The back faces, opposite to the corresponding clamping faces, of the movable clamping blocks are inclined faces so that the movable clamping blocks can form wedge-shaped blocks. The inner edge, attached to the back faces of the movable clamping blocks, of the frame is an inclined face combined with the back faces of the movable clamping blocks. By the adoption of the rope gripper, a lift car or a hoisted heavy object can be clamped immediately by the rope gripper no matter in the upward hoisting process or the downward sliding process, and vicious consequences caused by accidents are prevented.
Description
Technical field
The present invention relates to a kind of wire stopper, specifically a kind of wire holder.
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; the Compulsory Feature that elevator should install the safety guard preventing car accidental movement additional is added, the pernicious personnel casualty accidents produced to prevent car accidental movement in " elevator manufacture and installation safety standard " standard No. 1 amendment of the up-to-date promulgation of China.
The existing safety guard of car accidental movement that prevents generally comprises following three kinds of modes:
First kind of way on the basis of original drg, increases a set of discrete drg in addition, as Redundancy Design.The drawback of this form is, if there is the situation of car accidental movement under power down mode, two drgs will action simultaneously, so not only significantly adds the qualified brake torque of original adjustment, and it is too quickly that elevator can be made to brake, and inertia then may be caused to injure to boarding personnel.In addition, existing elevator structure, does not generally all arrange installation site and redundant space that drg is overlapped in installation second.
The second way adopts bidirectional safety tongs device.Traditional is the bidirectional safety tongs relying on machinery to trigger, and namely after car accidental movement exceeds the speed limit, clamps action, its reliable operation by mechanical velocity limiter triggering secure, but mechanical velocity limiter can only could clamp action by triggering secure in an overspeed situation.Be exactly the bidirectional safety tongs that electromagnet triggers in addition, this bidirectional safety tongs can realize the safety tongs action under the non-overspeed situation of car accidental movement.And electromagnet triggers and comprises electric triggering and dead electricity trigger two kinds of mode of operations.But, obtain electric trigger mode when system cut-off, car meet accident and be shifted, just effectively can not clamp action by triggering secure; Therefore, the electromagnet 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 the normal power failure of electric power system instead of car accidental movement, electromagnet also can trigger bidirectional safety tongs action, after restoring electricity, elevator can not can recover normal operation automatically because of clamping down on of safety tongs, maintainer's M/C must be relied on, just can open safety tongs, make elevator recover normal and run.So after the situation of city large-area power-cuts occurs, all elevators all can not recover normal operation automatically, and this situation is inconceivable.And if on every platform elevator, increase the automatic recovery device of a sets of safety tongs, as fluid pressure drive device etc., its setup cost is very high, is also less feasible.
3rd mode increases steel wire braking.Existing steel wire braking is up-running over-speed protection device mostly, the problem existing for it, and one is monolateral action, and brake plate eccentric wear can occur; Two is steel wire brakings is also the mode of operation that hypervelocity triggers, and is unidirectional hypervelocity action.So do not having under overspeed situation, the movement if car meets accident, steel wire braking can not trigger action.Therefore, steel wire braking also must adopt electromagnetism triggering could realize at the protection act not having car movement under overspeed situation.But electromagnetism triggers still to exist and the same with above-mentioned bidirectional safety tongs electric triggering and dead electricity must trigger Problems existing.
Visible, because the existing safety guard of accidental movement of elevator cage that prevents all has very large technology or familiar lacunas, thus also all can not meet the actual use needs of elevator.
Summary of the invention
Object of the present invention is just to provide a kind of wire holder, can not meet the actual problem using needs of elevator safety protection to solve existing sure brake.
The object of the present invention is achieved like this: a kind of wire holder, be 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 lining, there is at least one to be movable clip block in two described braking fixture blocks, be provided with between described movable clip block and described framework and pull movable clip block with the extension spring making its back side abut in framework inner edge; The relative sandwich serface in the back side of described movable clip block is inclined-plane, makes movable clip block form wedge; The inner edge of the described framework fitted with the back side of described movable clip block is the inclined-plane be harmonious with the described movable clip block back side.
The chevron face of formed middle part projection is intersected by two inclined-planes towards the opposite in the back side of described movable clip block; The recessed conical suface in formed middle part is intersected by two inclined-planes towards the opposite in the inner edge of described framework.Form a kind of two-way safety guard all can braking protection thus.
In the present invention, one relative with described movable clip block is braked fixture block can be fixing fixture block, and described fixing fixture block is fixed in described framework.
Two in the present invention described braking fixture blocks can be also all movable clip blocks, and the structure of two described movable clip blocks is identical, for being symmetrical arranged in described framework.
The present invention has a longitudinal chute in the middle part of the back side of described movable clip block; The outer side frame body of the conical suface inner edge of described framework is provided with brake activating mechanism, the brake push rod described brake activating mechanism being provided with Compress Spring and being promoted by described Compress Spring, the front end of described brake push rod leans in the described chute of described movable clip block.
The present invention can be symmetrical arranged two brake activating mechanism on said frame, and each described brake activating mechanism drives a described movable clip block action by brake push rod.
The present invention also can be provided with a brake activating mechanism and a set of link gear on said frame, and described link gear connects with described brake activating mechanism; Described brake activating mechanism drives a described movable clip block action by brake push rod, and drives the action in opposite directions of movable clip block described in another by described link gear simultaneously.
Roller, bearing or bow type spring plate are set at the back side of described movable clip block.Arranging roller or bearing, is the cliding friction taken in sail between fixture block and framework inner edge; Arranging bow type spring plate, is to suitably delay the folder dead action of movable clip block when safety arrestment.
The front end of described brake push rod is provided with bearing or roller, with the friction drag of fixture block when safety arrestment and between brake push rod termination that take in sail.
The present invention by being arranged to the movable clip block of sphenoid in wire holder framework webge slot, like this, under normal circumstances, movable clip block is pulled to the most recess of framework inner edge conical suface by extension spring, thus enable the rope run in the guide in rope passage keep barrier free accessibility, do not affect the normal use of elevator or weight-lifting equipment, when there is the accidental movement situation of car or hoisting heavy because foundation brakes is malfunctioning in elevator or weight-lifting equipment, can under the control of the detecting and controlling system of equipment, or under the control of the brake activating mechanism on this wire holder, the movable clip block ordered about in brake push rod promotion wire holder is shifted to sandwich serface, make the rope channel narrows in wire holder, friction lining on braking fixture block produces braking clamping friction force to the rope of walking, and this braking clamping friction force reacts on movable clip block, the direction (up or down) driving movable clip block to move to rope is mobile, now the movable clip block of wedge shape is under the guiding and restrictive function of framework webge slot, the folder rope gap of rope passage is just reduced voluntarily in moving process, Quick-clamped is until folder dead line rope, thus achieve the reliable of drag rope and fast speed clamping braking, achieve the protective effect of safety arrestment, make no matter lift car or hoisting heavy are upwards rush to summit or slip car downwards, dead stop can be pressed from both sides at once by this wire holder, thus avoid and upwards to rush to summit or slip the generation of the contingencies such as car because of malfunctioning the caused car of the foundation brakes of elevator or weight-lifting equipment or hoisting heavy downwards.
If there is supply line's fault or normal situation about having a power failure, then the foundation brakes braking of elevator or weight-lifting equipment, clamping haulage cable; And this wire holder also under the effect of brake activating mechanism, can clamp steel rope by braking fixture block.But because now haulage cable is clamped braking by foundation brakes by elevator or weight-lifting equipment, what there will not be steel rope moves up and down situation, therefore, the braking of this wire holder can not produce and make movable clip block that situation about being shifted occur under the drive of friction force of steel rope, thus also would not occur the situation of movable clip block at framework tapered end folder dead line rope.After restoring electricity, brake activating mechanism obtains electric return, movable clip block in this wire holder can under the effect of extension spring self-resetting, this wire holder is opened automatically, elevator or weight-lifting equipment can recover normal work voluntarily, thus situation about avoiding because of the reset operation manually needed for supply line's power failure occurs, so just for the sure brake of car/weight accidental displacement that prevents on elevator or weight-lifting equipment provides very large work facility, make to install additional on elevator or weight-lifting equipment to prevent the sure brake of car/weight accidental movement from becoming possibility.
The present invention has following characteristics:
1, brake activating mechanism is utilized to the positive pressure of movable clip block to clamp drag rope, with the friction force formed between drag rope and friction lining under the displacement of drag rope drives, the movable clip block with wedge structure is made to enter in the webge slot of framework, to clamp drag rope, reach the object of braking.Only have the movable clip block when drag rope occurs mobile just to enter in framework webge slot, realize clamping braking.
2, when brake activating mechanism applying positive pressure makes braking fixture block retaining clip hold state, after Power resumption, brake activating mechanism can remove the clamp pressure of wire holder to drag rope voluntarily, make drag rope recover normal operating condition, thus efficiently solve the self-healing problem of large-area power-cuts equipment.
3, this wire holder structure is simple, and engaged position is little, can be arranged on by elevator(lift) machine room or towing machine, is convenient to old structural reform and makes, and solves the difficult problem that existing elevator does not have sure brake installation site.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the lateral plan of embodiment 1.
Fig. 3 is the birds-eye view of embodiment 1.
Fig. 4 is the structural representation of embodiment 1 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 birds-eye 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 lining, 4, movable clip block, 5, extension spring, 6, chute, 7, brake electromagnet, 71, yoke, 72, armature, 73, magnet coil, 74, Compress Spring, 75, brake push rod, 8, end plate, 9, fixing fixture block, 10, steel 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 cubic cylindricality, the end face of framework 1 and bottom surface are provided with scrak type opening opposing upper and lower, two braking fixture blocks that sandwich serface is relative are provided with in framework 1, 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 be parallel to each other, and the sandwich serface of each braking fixture block is provided with friction lining 3.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 chevron face of the middle part projection formed is intersected by upper and lower two oblique facades towards the opposite in the back side (opposing in the one side of sandwich serface) of movable clip block 4, and two oblique facades in this chevron face can be the upper and lower planes of symmetry.Two symmetrically arranged movable clip blocks 4 form an atractosome.The recessed conical suface in formed middle part is intersected by upper and lower two oblique facades towards the opposite in the support body inner edge of the arranged on left and right sides of framework 1, and two oblique facades are the upper and lower plane of symmetry, and the gradient of the oblique facade of framework is corresponding with the gradient of the oblique facade of movable clip block.The taper inner edge of framework 1 left and right sides is symmetrical structure, the oblique facade that two of the top of inner edge, framework 1 both sides are relative forms a webge slot, two relative oblique facades of below form a webge slot, like this, in framework 1, just define two webge slots up and down, upper and lower two webge slots are interconnected.The chamfer length of each webge slot should be greater than the length of the oblique facade of movable clip block 4, can move up and down in the webge slot of framework 1 to make movable clip block 4.
An extension spring 5 is respectively set at the upper and lower end of framework 1 both sides, the upper and lower end of the movable clip block 4 of side, tap 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 suppression of movable clip block 4, is also the position making rope passage 2 keep aperture maximum, to enable haulage cable normal pass in rope passage 2.
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 brakes the closed lower channel in four sides that fixture block and two end plates 8 be encircled into by framework 1, two.
From Fig. 1, Fig. 3, have 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, also can be the groove of the one section of upper lower sealing offered between two parties.For the latter, should can ensure that movable clip block 4 can arrive top dead point and the bottom dead point of framework webge slot after brake push rod inserts.The bottom surface of chute 6 parallels with sandwich serface.
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 comprises brake electromagnet 7, Compress Spring 74 and brake push rod 75 etc.In Fig. 1, brake electromagnet 7 is made up of parts such as yoke 71, armature 72 and magnet coils 73; Compress Spring 74 is contained in the inner chamber of brake electromagnet 7 (also can be arranged on the outside of brake electromagnet), and brake push rod 75 passes from yoke 71, armature 72 and Compress Spring 74, and keeps linkage structure with armature 72.Brake push rod 75 is perpendicular to the sandwich serface of movable clip block 4, and its front end, after penetrating in framework 1, leans the bottom surface at chute 6, with under the action of the compression spring 74, implements positive pressure to movable clip block 4.The position of the brake push rod 75 of framework 1 both sides is relative.
Brake electromagnet 7 can select dead electricity trigger electromagnet, is connected to the energy-storage capacitor providing delay working power supply in the control circuit of brake electromagnet 7.The effect of energy-storage capacitor is the working power providing in short-term (about 0.1-10 seconds) when dead electricity to brake electromagnet, to make brake electromagnet 7 can time delay power-off trigger action again after 0.1-5 seconds, like this, just can make lag behind the opening time of towing machine foundation brakes opening time of this wire holder, thus avoid the action simultaneously of this wire holder and towing machine foundation brakes that the elevator too quickly inertia caused that brakes is injured.
The present invention also can only arrange a brake activating mechanism on framework 1, and install a set of link gear more in addition, link gear connects with brake activating mechanism; Brake activating mechanism drives the action of a movable clip block 4 by brake push rod 75, and drives another movable clip block action in opposite directions of offside by link gear simultaneously, makes the pinching action that two movable clip blocks 4 realize in opposite directions.
When elevator generation car accidental movement (situation that namely foundation brakes is malfunctioning), because the wire holder in braking mode has brake clamping force to haulage cable, friction lining 3 on two movable clip blocks 4 produces braking friction to the steel rope 10 of walking, this braking friction reacts on movable clip block 4, movable clip block 4 is driven to move up (suppose now steel rope on move), in the upper wedge groove entering framework 1 (Fig. 4).In the process entering framework webge slot; two movable clip blocks 4 are forced to sandwich serface and are shifted further; make rope passage 2 narrower; thus by steel rope 10 Quick-clamped, folder extremely; achieve at elevator foundation brakes malfunctioning rear to the reliable of steel rope and fast speed clamping stop; serve safety guard-safeguard effect, avoid the generation of the contingency that the car that causes because elevator foundation brakes is malfunctioning is upwards rushed to summit.
The principle of work that the braking that this wire holder slips car contingency downwards to car is protected is the same, and just two movable clip blocks 4 are the lower wedge grooves having entered into framework 1, by steel rope 10 Quick-clamped, folder extremely.
For reducing the pressure drag of brake push rod 75 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, with the cliding friction taken in sail between fixture block and framework inner edge.Also can slot at the back side of movable clip block 4 and bury bow type spring plate underground, the bow top of bow type spring plate will exceed the surface of movable clip block 4, to increase flexible application force, suitably delays the dead action of the folder of movable clip block 4 when safety arrestment.The front end of brake push rod 75 can install bearing or roller additional, with the friction drag of fixture block 4 when safety arrestment and between brake push rod front end that take in sail.
Embodiment 2
The structure of the present embodiment is substantially identical with the structure of embodiment 1, be also Dual Action fixture block structure is set, and be provided with two brake activating mechanism; The front end of the brake push rod 75 in two brake activating mechanism leans respectively carries out triggering braking in the chute 6 of the movable clip block 4 of respective side.
Difference is rope passage 2 is the lower channel (Fig. 5) that three faces are surrounded, side is opened formed by framework 1, braking fixture block and end plate 8.The structure that this rope passage side is opened, be convenient to install this wire holder on not easily detachable lift facility, the steel rope 10 namely on elevator can enter rope passage 2 by the side of opening, thus is very easy to the installation of wire holder.
Embodiment 3
As shown in Figure 6, the structure of the present embodiment is substantially identical with the structure of embodiment 1, and two braking fixture blocks one just 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, only on the framework 1 of movable clip block 4 side, be provided with brake activating mechanism, this brake activating mechanism comprises brake electromagnet 7, Compress Spring 74 and brake push rod 75 etc.Similarly, brake electromagnet 7 is made up of parts such as yoke 71, armature 72 and magnet coils 73; Compress Spring 74 is contained in the inner chamber of brake electromagnet 7 (also can be arranged on the outside of brake electromagnet), and brake push rod 75 passes from yoke 71, armature 72 and Compress Spring 74, and keeps linkage structure with armature 72.Brake push rod 75 is perpendicular to the chute 6 of movable clip block 4, and its front end, after penetrating in framework 1, leans the bottom surface at chute 6, under the action of the compression spring 74, implements positive pressure to movable clip block 4.
In the present embodiment, the upper and lower oblique facade of inner edge, framework 1 left side constitutes the upwards webge slot and downward webge slot that are made up of oblique facade and vertical surface respectively with the sandwich serface of fixing fixture block 9.
In Fig. 7, be provided with the end plate 8 blocking and brake fixture block in the side of the framework 1 adjacent with rope passage 2, rope passage 2 is encircled into the closed lower channel in four sides 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, with the cliding friction taken in sail between fixture block and framework inner edge.Also can slot at the back side of movable clip block 4 and bury bow type spring plate underground, suitably to delay the folder dead action of movable clip block 4 when safety arrestment.The front end of brake push rod 75 also can install bearing or roller additional, with the friction drag of fixture block 4 when safety arrestment and between brake push rod front end that take in sail.
Embodiment 4
As shown in Figure 8, the structure of the present embodiment is substantially 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, be provided with brake activating mechanism, the framework 1 of fixing fixture block 9 side then eliminates the setting of brake activating mechanism.Difference is, rope passage 2 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 present embodiment is applicable to the old structural reform that inconvenience disassembles haulage cable and makes in occasion.
Embodiment 5
As shown in Figure 9, framework 1 is the space frame structure of cubic cylindricality, the end face of framework 1 is provided with scrak type opening, two braking fixture blocks that sandwich serface is relative are provided with in framework 1, 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 be parallel to each other, and the sandwich serface of each braking fixture block is provided with friction lining 3.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 form a combination sphenoid.The support body inner edge, both sides of framework 1 is the inclined-plane be harmonious with the back side gradient of movable clip block 4, and the inner edge, inclined-plane of framework 1 both sides forms the unidirectional webge slot of clamping combination sphenoid.
An extension spring 5 is respectively set at the upper and lower end of framework 1 both sides, the upper and lower end of the movable clip block 4 of side, tap 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 the support body inner edge of framework 1.This position is the normality suppression of movable clip block 4, meets haulage cable pass through smoothly in rope passage 2 to make the aperture of rope passage 2.
In the middle part of the back side of movable clip block 4, have the chute 6 of a longitudinal direction, this chute can be up/down perforation groove, also can be the groove of the one section of upper lower sealing offered between two parties.The bottom surface of chute 6 parallels with sandwich serface.
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 comprises brake electromagnet 7, Compress Spring 74 and brake push rod 75 etc.Brake electromagnet 7 is made up of parts such as yoke 71, armature 72 and magnet coils 73; Compress Spring 74 is contained in the inner chamber of brake electromagnet 7 (also can be arranged on the outside of brake electromagnet), and brake push rod 75 passes from yoke 71, armature 72 and Compress Spring 74, and keeps linkage structure with armature 72.Brake push rod 75 is perpendicular to the sandwich serface of movable clip block 4, and its front end, after penetrating in framework 1, leans the bottom surface at chute 6, with under the action of the compression spring 74, implements positive pressure to movable clip block 4.The position of the brake push rod 75 of framework 1 both sides is relative.
Brake electromagnet 7 can select dead electricity trigger electromagnet, is connected to the energy-storage capacitor providing delay working power supply in the control circuit of brake electromagnet 7.
The present embodiment also can only arrange a brake activating mechanism on framework 1, and install a set of link gear more in addition, link gear connects with brake activating mechanism; Brake activating mechanism drives the action of a movable clip block 4 by brake push rod 75, and drives another movable clip block action in opposite directions of offside by link gear simultaneously, makes the pinching action that two movable clip blocks 4 realize in opposite directions.
The present embodiment owing to only there being a unidirectional webge slot in framework 1, one-way safety braking can only be implemented to steel rope, can be suitable for using safely on the weight-lifting equipment of winch class, because, the weight-lifting equipment of winch class is when foundation brakes is malfunctioning, as long as the unidirectional unforeseen circumstances that solution weight-drop, steel rope are descending.If will use the present embodiment on elevator traction machine, then can install a sure brake respectively at the steel rope place on towing machine both sides, the braking direction of two sure brakes is contrary, can meet the operating needs 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, with the cliding friction taken in sail between fixture block and framework inner edge.Also can slot at the back side of movable clip block 4 and bury bow type spring plate underground, suitably to delay the folder dead action of movable clip block 4 when safety arrestment.The front end of brake push rod 75 also can install bearing or roller additional, with the friction drag of fixture block 4 when safety arrestment and between brake push rod front end that take in sail.
Embodiment 6
Referring to Fig. 9 and Fig. 6, the structure of the present embodiment is substantially identical with the structure of embodiment 5, just in two braking fixture blocks one be movable clip block 4, another is fixing fixture block 9, forms one quiet one dynamic one-way safety drg.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 comprises brake electromagnet 7, Compress Spring 74 and brake push rod 75 etc.Similarly, brake electromagnet 7 is made up of parts such as yoke 71, armature 72 and magnet coils 73; Compress Spring 74 is contained in the inner chamber of brake electromagnet 7, and brake push rod 75 passes from yoke 71, armature 72 and Compress Spring 74, and keeps linkage structure with armature 72.Brake push rod 75 is perpendicular to the chute 6 of movable clip block 4, and its front end, after penetrating in framework 1, leans the bottom surface at chute 6, under the action of the compression spring 74, implements positive pressure to movable clip block 4.
The applicable situation of the present embodiment is with embodiment 5.
Wire holder of the present invention can carry out safety arrestment in the following manner:
1, will the rope passage 2 of steel rope 10 through wire holder of car or weight be lifted by crane, and the control circuit of wire holder will be connected in working power.
2, when towing machine foundation brakes dead electricity is braked, the synchronous dead electricity of drg of the present invention, but energy-storage capacitor provides the delay working power supply of 0.1-10 seconds for brake electromagnet 7 this moment, makes wire holder postpone to brake after 0.1-5 seconds.
3, the switching-off action time adjusting wire holder is less than the switching-off action time of towing machine or winch foundation brakes, when the foundation brakes energising of towing machine or winch is opened, wire holder is energized simultaneously, but within 0.05-0.5 second, opens prior to the foundation brakes of towing machine or winch.
4, when towing machine or winch proper motion, the movable clip block 4 in wire holder is pulled to the inner edge of framework 1 by extension spring 5, and the rope passage 2 between two braking fixture blocks expands, and makes steel rope 10 travel through rope passage 2 without barrier.
5, when the foundation brakes normal brake application of towing machine or winch, wire holder deferred action, brake push rod 75 in wire holder implements forward extrusion power to movable clip block 4 under the action of the compression spring 74, movable clip block 4 steel rope 10, two pressed in rope passage 2 is made to brake the steel rope 10 that fixture block clamps stop.
6, when the foundation brakes of towing machine or winch is normally opened, wire holder is shorter than the switching-off action time of the foundation brakes of towing machine or winch because of its switching-off action time, and make adhesive action prior to the foundation brakes of towing machine or winch, eliminate the forward extrusion power to movable clip block 4, the inner edge (Fig. 1) movable clip block 4 being reversed under the effect of extension spring 5 cling to framework 1, steel rope is dynamic be pulled work before expand rope passage 2 in advance.
7, when after the braking of towing machine foundation brakes, when steel rope does not stop action or starts action again after stopping, the steel rope 10 be clamped in wire holder rope passage 2 drives movable clip block 4 to produce with steel rope action in the same way, movable clip block 4 is made to enter the webge slot interior (Fig. 4) of framework 1, under the effect of framework webge slot, larger gripping power is produced to the steel rope in rope passage 2, and under the position-limiting action of framework 1, by the dead stop of wire rope grip of motion.
8, when needs emergency braking, disconnect the line breaker between control circuit and energy-storage capacitor in wire holder, brake push rod 75 in wire holder implements forward extrusion power to movable clip block 4 under the action of the compression spring 74, movable clip block 4 is made to press to steel rope 10 in rope passage 2, the steel rope 10 that two braking fixture block clamping movement, the steel rope 10 of motion drives movable clip block 4 to move up or down by friction force thereupon, makes movable clip block 4 enter in the corresponding webge slot of framework 1; Under the effect of framework webge slot, the steel rope 10 in movable clip block 4 pairs of rope passages 2 produces larger gripping power, and under the position-limiting action of framework 1, by the dead stop of wire rope grip of motion.
9, when the Failure elimination of the foundation brakes of towing machine or winch or after the accident causation of emergency braking is eliminated, connect working power, the foundation brakes of towing machine or winch is opened, the brake electromagnet 7 of wire holder obtains electric adhesive, eliminates the forward extrusion power of Compress Spring 74 and brake push rod 75 pairs of movable clip blocks 4; And then control towing machine or winch reversion by point driving switch, now, be braked the steel rope 10 that fixture block presss from both sides dead stop in framework webge slot and produce counteragent trend, reverse application force is applied to braking fixture block, movable clip block 4 is loosened and to the opposite sense action entering framework webge slot, after movable clip block 4 leaves the end stop of frame webge slot, i.e. return cling to framework inner edge under the pulling function of extension spring 5, expand rope passage 2, complete wire holder press from both sides dead stop after unclamp action.Certainly, the present invention also can adopt conventional manual hand manipulation's mode, utilizes the operating mechanism such as screw rod, jackscrew, is opened by the dead wire holder of folder.
Claims (9)
1. a wire holder, it is characterized in that, be 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 lining, there is at least one to be movable clip block in two described braking fixture blocks, be provided with between described movable clip block and described framework and pull movable clip block with the extension spring making its back side abut in framework inner edge; The relative sandwich serface in the back side of described movable clip block is inclined-plane, makes movable clip block form wedge; The inner edge of the described framework fitted with the back side of described movable clip block is the inclined-plane be harmonious with the described movable clip block back side.
2. wire holder according to claim 1, is characterized in that, the chevron face of formed middle part evagination is intersected by two inclined-planes towards the opposite in the back side of described movable clip block; The recessed conical suface in formed middle part is intersected by two inclined-planes towards the opposite in the inner edge of described framework.
3. wire holder according to claim 1 and 2, is characterized in that, brake fixture block for fixing fixture block for one relative with described movable clip block, described fixing fixture block is fixed in described framework.
4. wire holder according to claim 1 and 2, is characterized in that, two 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.
5. wire holder according to claim 4, is characterized in that, has a longitudinal chute in the middle part of the back side of described movable clip block; Have brake activating mechanism in the support body arranged outside of described framework, the brake push rod described brake activating mechanism being provided with Compress Spring and being promoted by described Compress Spring, the front end of described brake push rod leans in the described chute of described movable clip block.
6. wire holder according to claim 5, is characterized in that, is symmetrically arranged with two brake activating mechanism on said frame, and each described brake activating mechanism drives a described movable clip block action by brake push rod.
7. wire holder according to claim 5, is characterized in that, be provided with a brake activating mechanism and a set of link gear on said frame, described link gear connects with described brake activating mechanism; Described brake activating mechanism drives a described movable clip block action by brake push rod, and drives the action in opposite directions of movable clip block described in another by described link gear simultaneously.
8. the wire holder according to claim 1,2,5,6 or 7, is characterized in that, is provided with roller, bearing or bow type spring plate at the back side of described movable clip block.
9. the wire holder according to claim 1,2,5,6 or 7, is characterized in that, the front end of described brake push rod is provided with bearing or roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035448.6A CN105480811B (en) | 2016-01-20 | 2016-01-20 | Rope clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035448.6A CN105480811B (en) | 2016-01-20 | 2016-01-20 | Rope clamping device |
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| Publication Number | Publication Date |
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| CN105480811A true CN105480811A (en) | 2016-04-13 |
| CN105480811B CN105480811B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035448.6A Active CN105480811B (en) | 2016-01-20 | 2016-01-20 | Rope clamping device |
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| CN (1) | CN105480811B (en) |
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| CN105819302A (en) * | 2016-05-31 | 2016-08-03 | 石家庄五龙制动器股份有限公司 | Rope gripper |
| CN106044455A (en) * | 2016-08-05 | 2016-10-26 | 韩伍林 | Compact rope gripper |
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| CN108275538A (en) * | 2018-04-04 | 2018-07-13 | 浙江蒂尔森电梯有限公司 | A kind of express elevator safety tongs |
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| CN108275538A (en) * | 2018-04-04 | 2018-07-13 | 浙江蒂尔森电梯有限公司 | A kind of express elevator safety tongs |
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| CN105480811B (en) | 2020-04-24 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170824 Address after: High tech Zone of Hebei province Shijiazhuang City Xinshi road 050000 No. 375 Applicant 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 Applicant before: Han Wulin |
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