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WO1992013791A1 - Dispositif de deceleration - Google Patents

Dispositif de deceleration Download PDF

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Publication number
WO1992013791A1
WO1992013791A1 PCT/AU1992/000032 AU9200032W WO9213791A1 WO 1992013791 A1 WO1992013791 A1 WO 1992013791A1 AU 9200032 W AU9200032 W AU 9200032W WO 9213791 A1 WO9213791 A1 WO 9213791A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
arrestor
decelerating device
axial movement
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU1992/000032
Other languages
English (en)
Inventor
Peter G. Rowe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOISTING SYSTEMS Pty Ltd
Original Assignee
HOISTING SYSTEMS Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HOISTING SYSTEMS Pty Ltd filed Critical HOISTING SYSTEMS Pty Ltd
Priority to AU12034/92A priority Critical patent/AU660653B2/en
Publication of WO1992013791A1 publication Critical patent/WO1992013791A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
    • 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
    • B66B5/22—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 means of linearly-movable wedges

Definitions

  • This invention relates to a decelerating device for emergency usage with conveyances or moving objects which develop appreciable momentum such as a mine cage or platform for carrying men or other objects up and down a vertical or inclined shaft, rolling stock, or indeed any other object of significant mass which moves along a predetermined path.
  • railway sidings have employed the use of various means for arresting the progress of a train in an emergency situation, such means ranging from dampened buffers located at the end of the siding to piles of sand or similar material.
  • dampened buffers located at the end of the siding to piles of sand or similar material.
  • buffers two common types employed are the spring type and the hydraulic cylinder type.
  • the spring type these comprise a heavy duty coiled spring which applies a retard ⁇ ing force to an object striking the buffer, which retarding force progressively increases with increased compression of the spring.
  • This form of buffer has limited utility and is not suitable for decelerating run away trains or the like where a large momentum is involved, since the maximum retardation force that can be applied by the spring is at ⁇ tained over a relatively short distance determined by the length of the spring with the retardation force of the spring not being applied uniformly to the object striking the buffer.
  • these generally comprise a pair of relatively large and heavy cylinders filled with hydraulic fluid of high viscos ⁇ ity.
  • a relatively small orifice is formed in the cylinder wall which allows the hydraulic fluid to escape from the confines of the cylinder in a timed manner upon application of a striking force to the buffer, consequently causing the cylinder to apply a relatively constant retardation force to the object striking the buffer as the buffer is displaced by the object striking it.
  • these devices are superior to the spring type of buffer in that a relatively constant retardation force is applied, they are still limited in utility by virtue of the retardation force being associated with the length of the cylinder and the possibility of this being exceeded within a relatively short distance by a runaway train.
  • the hydraulic types of buffers are extremely expensive due to their relative bulkiness and complexity in design.
  • the aforementioned types of buffers also are used at the ends of mine shafts to arrest over travel of a mine cage, and accordingly suffer from the same disadvantages as outlined in relation to the arresting of moving rolling stock.
  • Another system employed on a few sites in Australia for arresting the over travel of cages at the ends of mine shafts comprises a transversely extending bar or buffer suspended by a pair of elongated steel plates located at the sides of the mine shaft.
  • the plates are deformed so as to describe an arcuate path around a set of rollers housed within a suspension block fixedly located at the sides of the shaft a short distance above the bar.
  • the plates have a rectilineal extent which projects beyond the suspension blocks which can be progressively deformed by the rollers within the blocks upon the mine cage striking the bar with sufficient momentum creating a force which exceeds the retardation force applied to the deformed section of the plates by the suspension blocks.
  • the bar applies a relatively constant retardation force to the cage during progressive deformation of the rectilineal extent of each of the plates by the rollers of the suspension blocks.
  • a drawback of this device is that the suspension blocks are very expensive, quite heavy, and are subject to malfunction in time by allowing the ingress of dirt or other foreign materials which can lead to corrosion or clogging of the rollers.
  • a decelerating device for decelerating a moving object travelling along a path comprising:-
  • anchoring means for anchoring said device to a fixed refer ⁇ ence; a carrier for engaging said moving object; an arrestor cable interconnecting said anchoring means and carrier between one end and an intermediate portion of said cable proximate to said one end such that a free length of said cable is provided at the other end thereof; compression means for transversely engaging said intermedi ⁇ ate portion of said arrestor cable; and said compression means being adapted to radially compress and deform said cable in response to relative axial move ⁇ ment therebetween; wherein a motive force applied to said carrier relative to said anchoring means is transferred to cause relative axial movement between said compression means and said cable, and said relative axial movement is opposed by a retardation force generated by said compression means in response to said relative axial movement.
  • said compression means has associated therewith stop means for stopping conjoint axial movement of said compression means and said arrestor cable, and allowing said relative axial movement.
  • said compression means comprises a die block having a pair of dies defining the sides of a passage extending longitudinally through said die block for engag ⁇ ing said arrestor cable, said passage being tapered to provide a constricted opening at one end relative to the other end of said passage, such that said diesprogressively ⁇ sively compress said cable along said free length entering the other end of said passage during said relative axial movement.
  • said arrestor cable is fixedly secured at said one end to said anchoring means and said compression means is disposed for positive securement to said carrier.
  • said arrestor cable is fixedly secured at said one end to said carrier and said compression means is disposed for positive securement to said anchoring means.
  • Figure 1 is a schematic diagram showing the cage run ⁇ ning in a shaft provided with steel guides in ac ⁇ cordance with the first embodiment
  • Figure 2 is a similar view to figure 1 showing the cage suspended from the arrestors after failure of the hoist cable;
  • Figure 3 is an elevation of one side of the cable at ⁇ tachment to the cage
  • Figure 4 is an elevation of another side of the at ⁇ tachment shown at figure 3;
  • Figure 5 is an elevation of the actuator in the closed position
  • Figure 6 is an elevation of the actuator of figure 5 in an open position
  • Figure 7 is a fragmentary sectional plan view of the arrestor taken through section 7-7 of figure 8;
  • Figure 8 is a fragmentary sectinal elevation of teh arrestor taken through section 8-8 of Figure 7;
  • Figure 9 is a side view of the cage showing the arrestor assembly mounted to the top of the cage and the arrestor cabies stored within the cage side;
  • Figure 10 is a sectional view taken along section A-A of figure 9;
  • Figure 11 is a cross-sectional view of the compression means
  • Figure 12 is a schematic plan view of the decelerating device in accordance with the second embodiment, before impact of the carrier;
  • Figure 13 is a similar view to figure 12, but after impact.
  • Figure 14 is a cross-section view of the compression means.
  • the first embodiment is directed towards a decelerating device which is fitted to a conveyance in the form of a cage which runs along a vertical mine shaft fitted with steel guides and which is attached to one end of a hoist rope or cable for suspension and hoisting along the shaft by an overhead drum winder.
  • a cage 11 runs in a mine shaft fitted with steel guides 12 and is connected to one end of a hoist rope or cable 13 for suspension and hoisting along the shaft from an overhead drum winder (not shown) . Accordingly, the cage 11 moves rectilinearly up or down the shaft between the guides 12 by hoisting the cable 13.
  • the decelerating device of the present embodiment es ⁇ sentially comprises anchoring means in the form of a pair of arrestor assemblies 15, actuating means housed within an attachment 17 and connected to each of the arrestor as ⁇ semblies 15, a pair of arrestor cables 16 connected between the arrestor assemblies 15 and a carrier provided on the cage 11, and compression means in the form of a pair of die blocks 18.
  • the arrestor assemblies 15 are mounted to the top of the cage 11 at each side thereof to respectively slidably engage the corresponding guides 12 at opposite sides of the cage in axial alignment with a pair of vertical channels 22 integrally formed with the framework of the cage to run along the guides, thereby guiding movement of the cage along the guides 12.
  • Each arrestor assembly 15 includes a brake comprising a pair of clamping pads 21, a pair of cor ⁇ responding base plates 19, and a surrounding wedge applica ⁇ tor 23 for housing the clamping pads and base plates.
  • each base plate 19 is wedge shaped and lies against a matching inner wedge face of the wedge applicator 21 to define an interface 57 at either side of the guide 12 thereof.
  • the corresponding wedge shaped faces 57 of the base plate and wedge applicator at opposite sides of the guide thereof effectively converge from the base of the arrestor assembly towards the top thereof so as to direct movement of the base plates and clamping pads of a particular arrestor assembly 15 towards the guide 12 in response to independent downward movement of the wedge ap ⁇ plicator thereof.
  • Each base plate 19 is provided with an inner recess which faces the opposing sides of the guide 12 thereof so as to accommodate its corresponding clamping pad 21 for extended and retracted movement of the clamping pad towards or away from the guide.
  • the interface 59 between the confronting faces of the base plate and clamping pad incorporates a series of correspondingly aligned recesses 61 which extend transversely across the interface.
  • These recesses 61 are each provided with compression springs 63 which are in a compressed state when the confronting faces of the clamping pad and base plate are juxtaposed and thus tend to bias the clamping pad from a retracted position to a more extended position.
  • the attachment 17 comprises an actuator 14 forming part of the actuating means housed within a special slotted suspen ⁇ sion link 25, which in turn is connected to a series of links 27 to form a composite linkage assembly connecting the cage 12 to the cable 13.
  • the slotted suspen ⁇ sion link 25 is pivotally pinned by a bolt and nut assembly 29 to the cage bridle 31 disposed centrally at the top of the cage 12.
  • the suspension link 25 is provided with an elongate slot 33 proximate to its upper end and is pivot ⁇ ally pinned by another nut and bolt assembly 35 to a pair of fish plates 37 which in turn are mutually pinned at their opposite upper ends to one of the serial links 27a by means of a further nut and bolt assembly 41.
  • the serial link 27a is in turn pivotally pinned by another nut and bolt assembly 43 to the bifurcated end of the other serial link 27b which forms the end tie of the cable 13.
  • the actuator 14 is accommodated within the slot 33 so as to space the pin formed by the nut and bolt assembly 35 from the top of the slot 33 causing the opposite ends of the actuator 14 to be compressed when the cable 13 is placed under tension by the suspension of the cage 11 therefrom.
  • the actuator 14 is formed in two halves 14a and 14b and operates in conjunction with two pairs of control cables 49 in the form of bowden cables, which form the other part of the actuating means.
  • the control cables 49 are arranged so that one pair of control cables interconnect the actuator 14 and one of the arrestor assemblies 15 and the other pair of control cables interconnect the actuator 14 and the other arrestor assembly 15.
  • the two halves of the actuator 14, as shown at figures 5 and 6, are pressed together when there is tension in the suspension links under normal hoisting conditions.
  • the half 14a is provided with an inner recess 45 which houses a compression spring 46 and is adapted to accommodate a spigot end 47 integrally formed with the half 14b.
  • the axial extent of the spigot 47 is less than the corresponding extent of the recess 45 so that when the actuator 14 is in the closed position, as shown at figure 5, the spring 16 is in a compressed state. Consequently, upon releasing the compressive force applied to the opposing ends of the actuator 14, the spring 16 functions to bias the half 14b away from the half 14a in the open position as shown at figure 6 of the drawings.
  • the outer sheaths 49a of one end of the one pair of control cables are connected to a corresponding seat provided on the outer side of the actuator half 14a and the inner wires 49b of this same end of the one pair of control cables are respectively threaded through an elongate aperture 44a extending from each seat through the actuator half 14a and through a correspondingly aligned aperture 44b provided in the actuator half 14b adjacent to the spigot 47 to be fix ⁇ edly attached to the actuator half 14b by flaring the ends of the inner wires 49b behind the aperture of the half 14b.
  • the outer sheaths 49a and inner wires 49b of one end of the other pair of control cables are connected to the other side of the actuator.
  • control cables 49 are individually connected to corresponding short guide brackets 51 which are disposed in pairs on top and at each side of the cage 11 so that one pair of guide brackets is disposed at either side of a corresponding channel 22 and are surmounted by a corresponding arrestor assembly 15.
  • the guide brackets 51 actually form part of the cage 11 and provide a fixture to which the outer sheaths 49a of the control cables may connect proximate to the underside of the arrestor assemblies.
  • the ends of the in ⁇ ner wires 49b at these ends of the control cables are each terminated with a retainer pin rod 53, which situates within a corresponding aperture 54 extending from the guide bracket 51 thereof and through the underside of the cor ⁇ responding arrestor assembly 15 to associate with a cor ⁇ responding base plate 19 on one side or the other of the particular arrestor assembly 15 thereof.
  • each clamping pad 19 is retained in a retracted position by the retainer pin 55 thereof as a consequence of its fixed attachment to the clamping pad and its locking engagement with the retainer pin rod 53.
  • the retainer pin 55 is itself locked by the retainer pin rod 53 when the rod is extended in conjunction with the actuator 14 being closed, thereby retaining the clamping pads 21 in their respective retracted positions as shown figure 8 of the drawings.
  • This locking effected by the retainer pin rod 53 being adapted to intercept with a small hole provided in a retainer pin 55 associated with each base plate 19 and clamping pad 21 assembly, when the actuator 14 is closed.
  • the corresponding retainer pin 55 is fixedly mounted to the rear of the corresponding clamping pad 21 and extends outwardly therefrom to be situated within a passage 56 orthogonally disposed in intersecting relation ⁇ ship with the passage 54 so that the retainer pin 55 is transversely disposed with respect to the corresponding retainer pin rod 53.
  • each clamping pad 21 is provided with a friction liner 65 in the case of the guides 12 being formed of steel, but this may alternatively be provided with ser ⁇ rated edges or teeth if the guides are formed of wood, so as to achieve the greatest coefficient of friction between the guides and the clamping pads.
  • the die blocks 18 are mounted at either side of the cage 11 to the carrier 69a which forms part of the main frame work 69 of the cage as shown in figures 9 and 11 of the draw ⁇ ings.
  • Each die block 18 comprises a pair of dies 62 contained within a sleeve housing 64.
  • the dies 62 define the sides of a passage 66 which extends longitudinally through the die block so as to transversely engage a por ⁇ tion of a corresponding arrestor cable 16 which passes therethrough.
  • Both of the dies 62 are wedge shaped so as to provide the passage with a taper defining a constricted opening 66a at one end relative to the other end of the passage.
  • the sleeve housing 64 of the die block is formed with a butt end 64a at the constricted opening end of the die block which is welded or otherwise fixedly secured to the underside of a portion of the carrier 69a so as to form a stop means.
  • the stop means is provided with an opening 68 which is coaxially aligned with the passage 66. This opening 68 is of larger size than the constricted opening 66a of the passage and lessor size than the butt end 64a of the die block so as to enable the arrestor cable 16 to pass therethrough but oppose relative axial movement of the die block with respect to the stop means.
  • the arrestor cables 16 of the sling are each directly con ⁇ nected at one end to one or the other wedge applicator 23 by means of a terminal connector tie 65, pinned to a pendent tab 67 fixedly mounted to the underside of the wedge applicator.
  • a pair of arrestor cables 16 are associated with each arrestor assembly 13 and have their free length, extending past the respective die block 18 associated therewith at the other end of the cables, stored in a coiled formation within corresponding compartments 70 at the respective opposing sides of the cage.
  • each arrestor cable 16 comprises a wire rope made from a limited number of single wires formed into a large single strand (standard guy wire construction) which has a diameter greater than the constricted opening 66a of each die block 18 so that when the wire rope is pulled through the die, plastic deformation of the wire results.
  • the other end of each arrestor cable 16 is provided with a terminal block 20 fixedly formed with one end thereof to prevent this end of the cable from passing through the passage of the cor ⁇ responding die block.
  • conventional wire rope coated with PVC or the like may be used for the slings to provide an overall diameter greater than the constricted opening 66a of the die blocks 18, whereby the coating may be stripped off by pulling the wire rope through the die blocks.
  • the clamping pads 59 are extended in response to the action of the compression springs 63 causing the friction liners 14 thereof to engage the opposing sides of each guide 12 resulting in an initial braking action.
  • the wedge ap ⁇ plicators 23 are pulled down by the residual force of the arrestor cables 16 acting against the arrestor assembly, consequently causing the springs 61 to be recompressed until the base plates 21 are hard against the clamping pads 19.
  • an increased braking force is applied to the clamping pads by the wedging action of the wedge applicator and base plate, where such force applied on the arrestor assemblies is proportional to the downward pull on the wedge applicator and will always be sufficient to present the arrestor assembly slipping on the guide.
  • the arrestor cables 16 Upon further descending movement of the cage, the arrestor cables 16 will be pulled through the respective die blocks 18 associated therewith causing plastic deformation of the cables 16. This will apply a known and constant retarda ⁇ tion force on the cables which initially causes the wedge applicators to apply great force on to the clamping pads and acting to retard further descent of the cage.
  • the length of the arrestor cables 16 are such that the cage will be brought to rest from full speed at a controlled rate to deceleration of between 0.5g and l.Og, possibly greater in certain cases, depending on the load in the cage.
  • the deceleration distance is always designed to be less than the length of the sling, however, in extreme cases, the provision of the terminal blocks 20 on the end of each sling enables final arrest of the descent of the cage.
  • the plastic deformation of the wires of the arrestor cables provides increased tensile strength and length in the sling than in their undeformed state, thereby producing the multiple effect of not only retarding the descent of the cage, but simultaneously producing slings of greater strength and length to eventu ⁇ ally arrest the descent of the case.
  • the second embodiment is directed towards a decelerating device for use at the end of a railway siding in place of a conventional buffer, in order to decelerate and arrest the movement of rolling stock in an emergency which happens to overrun the end of the siding.
  • the decelerating device 71 generally comprises a pair of arrestor cables 73, a pair of compression means 75, an anchorage means in the form of a pair of stop means 77, and a carrier in the form of a bar 79.
  • a corresponding cable 73, compression means 75 and stop means 77 are disposed at either side of the railway line 81 at the end of a siding so that the bar 79 extends across the railway line to oppose movement of rolling stock 33 overrunning the siding.
  • the pair of cables 73 and bar 79 combine to form a sling which is move- able with respect to the compression means 75 and stop means 77.
  • the stop means 77 are both fixedly secured to the ground so as to form a pair of abutments which are immoveable.
  • the stop means may be mounted upon a pair of pil ⁇ lars which have a solid foundation within the ground.
  • each stop means 77 comprises a pair of abutment blocks 85 which are spaced apart to define an opening 87 centrally thereof, through which the cor ⁇ responding cable 73 may pass, as best shown in figure 14 of the drawings.
  • Each compression means 75 is in the form of a die block comprising a sleeve housing 89 and a pair of dies 91 retainedly disposed therein.
  • the dies are spaced apart to define the sides of a passage 93 which extends longitudinally through the die block in coaxial alignment with the opening 87 of the stop means.
  • Both of the dies 91 are wedge shaped so that the passage 93 is effectively tapered to provide a constricted opening at one end 93a thereof adjacent to the opening 87, relative to the other end 93b of the passage which is opposite to the opening 87, as shown in figure 14.
  • the sleeve housing 89 is formed with a butt end 89a which surrounds the constricted opening 93a of the passage.
  • the butt end 89a is adapted for engag ⁇ ing the abutment blocks 85 of the stop means and consequently the opening 87 is of larger size than the constricted opening 93a and lessor size than the butt end 89a to enable the cable 73 to pass therethrough but to op ⁇ pose relative axial movement of the compression means with respect to the stop means.
  • ne end 73a of the cable passes through the compression ⁇ eans 75 and stop means 77 to be fixedly secured to n cor ⁇ responding end of the bar 79.
  • the one end 73a of the cable is initially deformed so as to provide a diameter less than or commensurate to the size of the constricted opening 93a so that the one end 73a of the cable exits from the constricted opening 93a and the opening 87 of the stop means for attachment to the bar 79.
  • the other end 73b of the cable is coiled within the housing (not shown) which is disposed adjacent to the compression means 75 at the other end 93b of the passage.
  • the coiled arrangement of the cable is arranged so that the cable can be continuously fed through the compression means during axial movement of the cable relative to the compression means away from the coil.
  • the stop means 77 opposes axial movement of the compression means in conjunction with axial movement of the cable away from the coil whilst al ⁇ lowing relative axial movement between the compression means 75 and the cable 73.
  • the compression means 75 by virtue of the dies 91, transversely engages that portion of the cable extending therethrough and by the tapering effect of the passage 93 radially compresses and deforms the cable in a continuous and progressive manner in response to relative axial movement between the cable and compression means when the cable is moved away from the compression means at the constricted opening end 93a of the passage.
  • the cage arrestor is comparatively light and will result in zero or negligible loss of payload, particularly if the statutory rope factor of safety can be safely reduced when the cage arrestor is installed.
  • the cage can be periodically drop tested (free fall from a stationary position) on site to prove the system operates satisfactorily, causing only a very short pull-through of the arrestor slings.
  • the slack in the slings after each test can be taken up by providing an adjustable support bracket on the top of the cage from the shaft.
  • the compression means may comprise pairs of pinching rollers instead of die blocks 18 to deform the arrestor slings and provide a retarding force to the moving object to be arrested.
  • the arrestor assembly may be modified to comprise cone shaped wedges similar to a normal wedge type gland attachment used on rope guides as opposed to the particular arrangement hereinbefore described.
  • a metal scraper disposed beneath the pair of wedges would be provided to remove surplus grease and dirt from the guide rope immediately before application of the wedge.
  • the invention can also be applied to fixed shaft arrestors disposed at the top and bottom of a shaft to bring a cage safely to rest from full speed in the case of an overwind.
  • the inven ⁇ tion could be suitably applied to both drum and friction winder installations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

Dispositif de décélération d'un objet mobile, par exemple une cage (11), se déplaçant le long de guides d'acier (12) à l'intérieur d'un puits de mine et remontée par un câble de levage (13). Ledit dispositif comprend des éléments de serrage (15) fixés à la cage (11) et qui, lorsqu'ils sont actionnés, saisissent les guides (12). Les extrémités des câbles d'arrêt (16) sont reliées à un support (69) monté sur la cage (11), et fixées aux éléments de serrage (15). Des filières (18) montées sur le support (69) sont traversées par les câbles d'arrêt (16), qui sont saisis transversalement dans une partie intermédiaire de manière à être comprimés et déformés radialement par suite du mouvement axial relatif entre les câbles (16) et les filières (18). Les filières (18) ainsi que les éléments de serrage (15) sont, dans une premier temps, disposés ensemble de sorte que les extrémités libres des câbles d'arrêt (16) sont enroulées dans des compartiments de la cage (11). En cas de rupture du câble de levage (13), un élément d'actionnement situé dans un logement (17) commande le blocage des éléments de serrage (15) sur les guides (12). L'énergie appliquée au support (69) entraîne un mouvement axial entre les filières (18) et les câbles d'arrêt (16), ledit mouvement étant contré par la décélération due au contact des câbles (16) contre les filières (18).
PCT/AU1992/000032 1991-01-31 1992-01-31 Dispositif de deceleration Ceased WO1992013791A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12034/92A AU660653B2 (en) 1991-01-31 1992-01-31 Decelerating device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPK438991 1991-01-31
AUPK4389 1991-01-31

Publications (1)

Publication Number Publication Date
WO1992013791A1 true WO1992013791A1 (fr) 1992-08-20

Family

ID=3775198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000032 Ceased WO1992013791A1 (fr) 1991-01-31 1992-01-31 Dispositif de deceleration

Country Status (1)

Country Link
WO (1) WO1992013791A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395432A (zh) * 2013-05-07 2013-11-20 铁法煤业（集团）有限责任公司晓南矿 矿井斜巷缓冲挡车器
CN109611145A (zh) * 2019-01-22 2019-04-12 辽宁科技大学 一种采矿用运输装置
CN110650913A (zh) * 2017-04-04 2020-01-03 Fl史密斯公司 矿井运输工具安全制动器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU755727A (en) * 1927-05-30 1928-04-17 Rowland Vivian Ripper An improved safety device for mine skips, cages, lifts andthe like
AU3353078A (en) * 1977-02-22 1979-08-30 Seltrust Engineering Ltd. Linear arrestor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU755727A (en) * 1927-05-30 1928-04-17 Rowland Vivian Ripper An improved safety device for mine skips, cages, lifts andthe like
AU3353078A (en) * 1977-02-22 1979-08-30 Seltrust Engineering Ltd. Linear arrestor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395432A (zh) * 2013-05-07 2013-11-20 铁法煤业（集团）有限责任公司晓南矿 矿井斜巷缓冲挡车器
CN110650913A (zh) * 2017-04-04 2020-01-03 Fl史密斯公司 矿井运输工具安全制动器
CN109611145A (zh) * 2019-01-22 2019-04-12 辽宁科技大学 一种采矿用运输装置
CN109611145B (zh) * 2019-01-22 2024-05-14 辽宁科技大学 一种采矿用运输装置

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