CN102219140A - Emergency brake device and elevator using the emergency brake device - Google Patents
Emergency brake device and elevator using the emergency brake device Download PDFInfo
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- CN102219140A CN102219140A CN2011100421505A CN201110042150A CN102219140A CN 102219140 A CN102219140 A CN 102219140A CN 2011100421505 A CN2011100421505 A CN 2011100421505A CN 201110042150 A CN201110042150 A CN 201110042150A CN 102219140 A CN102219140 A CN 102219140A
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Abstract
The invention provides an emergency brake device and an elevator using the emergency brake device. The emergency brake device can stably generate braking force even in a high-speed large-capacity elevator and further prevent the surface of a guide rail from being damaged. The provided emergency braking device generates braking force so as to stop the elevator car by equipped a braking member (1) on a guide rail (7) inside an elevating channel in a pressing way and making the braking member slide on the guide rail (7). The emergency brake device comprises a ceramic sheet (42) and a support body (2). The ceramic sheet (42) which is a cloth-shaped article formed by ceramic fiber is equipped on a sliding face equipped on the braking member (1) and sliding on the guide rail (7). The support body (2) is used for fixing the ceramic sheet (42) so as to make the end of the ceramic sheet (42) slide on the guide rail (7).
Description
Technical field
The present invention relates to a kind of emergency braking apparatus of elevator, especially relate to a kind of at a high speed and the elevator that also can stably produce the emergency braking apparatus of braking force and use this emergency braking apparatus when using in the high-capacity elevator.
Background technology
Be provided with the emergency braking apparatus as safety device in existing elevator, when lift car descended with the speed more than the certain speed, described emergency braking apparatus made lift car stop with suitable deceleration/decel.
When the speed of lift car reaches the speed of regulation when above, emergency braking apparatus makes the brake component that is provided with two trapezoidal friction members push the guide rail for elevator that is arranged on the hoist trunk wall, utilization produces braking force by the power of the elastic deformation generation of spring, and brake component is generally formed by materials such as cast iron with appropriate friction coefficient and abrasion performance or copper based sintered alloys.
Because elevator constantly develops towards the direction of high speed and high capacity, therefore, under the hot environment that the friction heat that requires emergency braking apparatus to produce between because of brake component and guide rail forms, also can stably produce braking force.
For example, a kind of scheme is disclosed in patent documentation 1, it is the friction force that also can avoid friction member to rotate and guarantee to stipulate under the situation on the friction member in order to act on brake plate at uneven braking force, with the columniform friction member of ceramic by being pressed on the guide rail.
In addition, a kind of scheme is for example disclosed in patent documentation 2, it is found in brake portion, the fiber that exposes at numerous trickle diameters on surface has identical effect with the situation that is embedded with hard particles, and can as hard particles,, the particle that comes off not sustain damage because of making guide rail, in this scheme, in order to obtain stable friction and wear characteristic, in tabular ceramic mother metal, relative with brake shoe to face on, vertically bury ceramic-fibre or ceramic-fibre bundle underground in the mode of exposing from the surface.
Patent documentation 1: the open patent 2007-302450 of Japan communique
Patent documentation 2: the flat 09-71769 communique of Japan's open patent
In above-mentioned prior art, with the cylinder of ceramic by being pressed on the guide rail, because the hardness of pottery is compared high with the guide rail component made from rolled steel for general structure, and this hardness also can change hardly at high-temperature area, therefore, if pressing force is excessive, then can cause the surface of guide rail to produce wearing and tearing.Surface at guide rail has produced wearing and tearing, and perhaps the concavo-convex of surface becomes when extremely coarse, and it is big that the vibration of lift car becomes, and causes the travelling comfort of elevator to descend, and in the worst case, must change guide rail.When in high-rise, guide rail being changed, require a great deal of time and expense.
In patent documentation 2 disclosed schemes, may occur can't bearing friction force because of the mechanical strength that can't guarantee ceramic-fibre makes, cause brake component to damage.Along with the direction of elevator to high speed and high capacity develops, more and more be difficult to obtain required braking force.
Summary of the invention
The objective of the invention is to solve existing problem in the above-mentioned prior art, make in the elevator of high speed and high capacity, also can stably produce braking force, and can suppress the injured situation generation of guide rail surface.
To achieve these goals, the invention provides a kind of emergency braking apparatus, it produces braking force by brake component being pushed be arranged on the guide rail in the hoist trunk and it is slided on this guide rail, with this lift car is stopped, described emergency braking apparatus has ceramic plate and supporter, described ceramic plate is the cloth-like thing that is formed by ceramic-fibre, be arranged on described brake component on the sliding surface that slides on the described guide rail, described supporter is fixed this ceramic plate, makes the end face of this ceramic plate slide on described guide rail.
The invention effect
According to the present invention, can realize a kind of brake shoe for elevator emergency stop of high reliability, because it makes the end face of ceramic plate of the cloth shape that is made of ceramic-fibre slide on guide rail, so can when suppressing guide rail surface and sustaining damage, elevator be stopped.
Description of drawings
Fig. 1 is the block diagram of the brake component of expression an embodiment of the present invention.
Fig. 2 is the front view of the emergency braking apparatus (before the action) of expression an embodiment of the present invention.
Fig. 3 is the front view of the emergency braking apparatus (action back) of expression an embodiment of the present invention.
Fig. 4 is the block diagram of the emergency braking apparatus part of expression an embodiment of the present invention.
Fig. 5 is birds-eye view (a) and the lateral plan (b) that is used to illustrate the friction member structure of an embodiment.
Fig. 6 is birds-eye view and the block diagram that the cut direction to the blank of the friction member shown in Figure 5 in the embodiment describes.
Fig. 7 is the friction member of expression in one embodiment and the block diagram of the mounting structure of supporter.
Fig. 8 is the friction member of expression in other embodiments and the block diagram of the mounting structure of supporter.
Fig. 9 is the lateral plan that is used for the power on the related friction member of an embodiment of acting on is compared explanation.
Figure 10 is the front view that the sliding surface of friction and abrasion test has been implemented in expression.
Figure 11 is the diagram of curves of the comparative result of expression friction coefficient.
Figure 12 is the diagram of curves of comparative result of the abrasion loss of expression friction member.
Figure 13 is the diagram of curves of comparative result of the abrasion loss of expression disk (being equivalent to guide rail).
Nomenclature
1 brake component
2 supporters
3,34 friction members
7 guide rails
14 organizine
15 trams
17 cut surfaces
18 end faces
19 stacked directions
35 dip plane
42 ceramic plates
The specific embodiment
Followingly brake shoe for elevator emergency stop is described with reference to accompanying drawing.
Fig. 1 represents the brake component 1 of emergency braking apparatus, and this brake component 1 is the quadrangular prism shape, has upper end side 43 and is minor face, and lower end side 44 is the trapezoid cross section on long limit.In brake component 1, guide rail supporter 2 and not shown that constitutes by cast iron 7 relative to face on, be embedded with a plurality of (among the figure being 3) block friction member 3 with the interval of regulation.
Friction member 3 is made of the bond (hereinafter referred to as " ceramic plate ") of ceramic-fibre, and friction member 3 and supporter 2 combine, and the fore-end of friction member 3 is in from the outstanding slightly state in the surface of brake component 1.Ceramic plate 42 as friction member 3 slides on guide rail 7.The adapter plate 4 that is used for fixing friction member 3 is fixed on two sides of supporter 2 by screw 5.
Fig. 2 is the longitdinal cross-section diagram of emergency braking apparatus, and emergency braking apparatus 6 left and right symmetricallies are arranged on the both sides of guide rail 7.A pair of brake component 1 is provided with mode almost parallel ground that can clamping guide rail 7, and separates small gap between described brake component 1 and the guide rail 7.The back side of brake component 1 is the level and smooth dip plane of the narrower chock shape in top.
In order to make brake component 1 move to the position of regulation, guiding elements 11 is provided with the directing plate 8 to the mobile channeling conduct of brake component 1.The inboard of guiding elements 11 forms the dip plane parallel with the dip plane of brake component 1, and the outside forms vertical surface, and this vertical surface is clamped by elastic body 10.The outer peripheral portion of guiding elements 11 is surrounded by elastic body 10, and this elastic body 10 is formed U word shape (Fig. 4), its relative with guide rail 7 to a side be and open shape.Brake component 1, directing plate 8, guiding elements 11 and elastic body 10 are incorporated in the housing 9, and an end of brake component 1 is connected with the bar of mentioning that makes emergency braking apparatus 6 starting not shown driver element had.
State when Fig. 3 represents that emergency braking apparatus has carried out action, when emergency braking apparatus moves, brake component 1 is raised with respect to guiding elements 11 along directing plate, and brake component 1 moves towards the direction that each other distance narrows down.At this moment, brake component 1 promotes guiding elements 11 and elastic body 10 towards the direction shown in the arrow 13.Because of guiding elements 11 and elastic body 10 are pushed the reaction force acts that produces on brake component 1, thereby make brake component 1 clamp guide rail 7.
In the specification of some elevator, the multiple stage emergency braking apparatus need be set.Required braking force F is for lift car is stopped according to the deceleration/decel of stipulating:
F＝4μN＝m×(a+g)
In the formula, μ represents the friction coefficient between brake component and the guide rail, and N represents elastomeric pressing force (N), and m represents to fall quality (kg), and a represents deceleration/decel (m/s
2), g represents acceleration due to gravity (9.8m/s
2).
When using the one-part form emergency braking apparatus, the number of brake component is 4 (2/guide rail * 2 guide rails).At this moment, braking force is 4 times.Braking force F with fall quality and be directly proportional.From manufacture view, because there is the limit in the power that elastic body can produce,, emergency braking apparatus need be arranged to have up and down the emergency braking apparatus of multistage brake component so become heavy along with falling quality, guarantee braking force with this.On the other hand, raising along with command speed, friction coefficient between brake component and the guide rail reduces, so zone that speed is high more, need to adopt the emergency braking apparatus of multiple stage more, that is to say, compare that express elevator just needs to adopt the emergency braking apparatus of multiple stage under the lighter situation that falls quality with slower elevators.Therefore, in the elevator that the double-deck elevator that has two lift cars up and down and high-rise are used, need to adopt the emergency braking apparatus of multiple stage.For example, during the falling quality and be 25000kg of elevator, make elevator with 5.88m/s
2Deceleration/decel to stop required braking force be 392KN.Be set at μ=0.2, during maximum pressing force Fmax=400Kn, the pressing force of one-part form emergency braking apparatus lacks 72KN, therefore needs to adopt the emergency braking apparatus of two-period form.In addition, what the demand on the market was maximum is the elevator that is used for low-rise building, and its velocity band is 30～240m/min, in this kind elevator, and most emergency braking apparatus that all use one-part form.
Fig. 4 is the block diagram of overview that expression has the lift car of emergency braking apparatus.
The lift car of taking for the passenger 46 is connected with the not shown drive system that is positioned at the building the superiors by hoist cable 45.In Fig. 4, for convenience of explanation, detailed condition such as elevator door opening-closing mechanism and external frame are not illustrated.The both sides of hoist trunk are provided with the guide rail 7 of guiding lift car 46 liftings.At the end portion of lift car 46, emergency braking apparatus 6 is arranged on the both sides of guide rail 7 in the mode that can clamp guide rail 7.Also being provided with 6, two emergency braking apparatus of emergency braking apparatus on the guide rail of not shown opposition side connects by not shown bindiny mechanism.In addition, omitted the detailed icon of the housing etc. of emergency braking apparatus 6 among Fig. 4.
As all directions of giving a definition, that is, the length direction of guide rail 7 is defined as guide rail vertical 41, with brake component 1 across guide rail relatively to direction be defined as rail thicknesses direction 40, with about guide rail 7 relatively to direction be defined as guide rail Width 39.
Followingly the action of emergency braking apparatus is described with reference to Fig. 3 and Fig. 4.
When the moving velocity of lift car reaches setting speed greater than command speed, be arranged on the not shown speed detector action of going up floor most, brake component 1 is raised, the guide rail 7 on the hoist trunk wall that makes brake component 1 clamp to be arranged on the lift car both sides.Simultaneously, brake component 1 promotes the elastic body 10 of U word shape and makes elastic body 10 that elastic deformation take place, and makes to produce friction force between guide rail 7 and brake component 1, by this friction force lift car is stopped.
By making the ceramic plate 42 and guide rail 7 butts as the friction member 3 of brake component 1, generation gummed and cutting resistance between each ceramic plate 42 and guide rail 7 and produce friction force obtain braking force thus.By using ceramic plate 42 as friction member 3, though be used at a high speed and the situation of the elevator that bearing capacity is big under, can prevent that also the slip heat when sliding from causing friction member 3 to take place to soften and scorification, thereby can guarantee the braking force stipulated.
In addition, because ceramic plate 42 is made of the complex of ceramic-fibre, so can thus, can obtain the high brake shoe for elevator emergency stop that can lift car be stopped of reliability at the friction and the wear characteristic that suppress to guarantee when guide rail 7 sustains damage to stipulate.
Fig. 5 represents to become the overview that friction member 3 is the blank of ceramic plate 42.Ceramic plate 42 is by making ceramic-fibre entanglement or twisted Cheng Sihou formation cloth shape.Figure (a) is the birds-eye view of ceramic plate 42.When making ceramic plate 42, by alternately weaving ceramic-fibre is twisted the plain cloth that the organizine 14 that forms and tram 15 form sheet, make block ceramic plate 42 thus.Therefore, even under the high situation of the shared ratio of ceramic-fibre, also can guarantee mechanical strength by described ceramic-fibre is tangled mutually.In the ordinary course of things, the intensity of other directions of intensity ratio of the vertical direction when the top is observed of this ceramic plate 42 (direction vertical with paper among figure (a)) is low, but as described later, support structure by friction member 3 applies compressive force in vertical direction, can avoid friction member 3 to be destroyed.
Fig. 5 (b) is the lateral plan of ceramic plate.From the cross section, tram 15 is with the mode that the cross section with organizine 14 couples together (plain cloth: make organizine and tram alternately come-up and sedimentation and the fabric that is woven into) arranged side by side.In addition, also can adopt various fibrage method to form the bias fabric different with schematic structure (intersects two or three organizine with tram above tram, the fabric that an organizine is intersected with tram below tram and be made into) or satin fabric (make organizine and tram alternately come-up and sedimentation and the fabric that is woven into, wherein the come-up of the side in organizine and the tram is lacked than the opposing party's come-up), and also can not weave fiber and fiber is tangled each other and make the nonwoven fabrics of sheet.
Because the abrasion of the other side's material and the hardness of friction member 3 increase pro rata, therefore,, can suppress the situation generation that guide rail sustains damage by reducing the hardness of friction member 3.Know that by friction test the damage of the guide material that produces because of the friction between ceramic plate 42 and the guiding elements is in allowed band.
The cut direction of Fig. 6 (a) expression ceramic plate material, friction member 3 is preferably shown in line of cut 16, from above cut with respect to organizine 14 and tram 15 bevelled directions (length direction with respect to fiber is approximately 45 degree in the drawings) when observing, the end face that cuts out is all right guide rail 7 enterprising line slips.
The block diagram of the ceramic plate after Fig. 6 (b) expression is cut according to Fig. 6 (a), the ceramic plate 42 that cuts out is cuboid.Therefore, in the drawings, with the surface of the fibre section of the both direction of cut surface 17 adjacency in, the fiber end face 18 separately of organizine and tram has and is roughly oval shape.
Imbed direction when Fig. 7 represents that ceramic plate imbedded supporter 2, the ceramic plate 42 that cuts out makes that the length direction of end face is a guide rail vertical 41, and makes end face slide on guide rail 7 to imbed the supporter 2 from the mode of supporter 2 outstanding specified amounts.That is to say, the end face of organizine and tram is slided on guide rail 7 and produce braking force.
The stacked direction 19 of ceramic plate 42 is the Width of guide rail, therefore, on the direction that does not almost have friction force to act between each layer to make ceramic plate 42 to peel off, thereby can prevent that ceramic plate 42 is subjected to fissility and destroys.In addition, on stacked direction, apply compressive force in advance by adapter plate, even make drawing stress act on to make on the direction that each layer peel off, also can offset this drawing stress by this compressive force, can prevent further that therefore ceramic plate 42 is subjected to fissility and destroys.
Fig. 8 is the figure of other combined shaped of expression friction member 3 and supporter 2.Below the friction member 34 that constitutes by ceramic plate, be provided with dip plane 35.Be arranged on the dip plane 35 that forms acute angle on the direction of leaving not shown guide rail sliding surface specifically.And, on supporter 2, cut out identical shaped dip plane 38.At this moment, make the Cutting Length on the guide rail vertical of supporter 2 more longer, make friction member can loosely embed supporter than friction member.Thus, carrying out can not producing unnecessary stress on the friction member when fastening.Friction member 34 is inserted from the side of supporter 2, and by not shown adapter plate friction member 34 is clamped and to be fixed on the supporter 2.
The dip plane also can be arranged on the top of friction member 34, but owing to there is the friction force towards the top to act on the friction member 34, forms tabular surface so preferably will bear the face of friction force, makes friction member 34 become stable with contacting of supporter 2.By constituting aforesaid shape, the effect that prevents that friction member 34 from coming off towards rail-sides can both be played in two dip plane 35,38, and just in case taken place under the situation that adapter plate comes off, friction member 34 can not come off from supporter 2 yet.
Fig. 9 is that friction force is acted on friction member 3 is the figure that the state on the ceramic plate 42 time describes.Figure (a) is a comparative example, and its expression is with the situation of ceramic-fibre when sliding surface is vertically imbedded.When friction force when the directive effect shown in the arrow 23 is on the end face of each ceramic-fibre 20～22, because fiber 20～22 buries underground respectively independently, so towards the direction deflection identical with friction force.At this moment, if there is not support member support, the fiber of the end side of friction member can friction force fractures because of bearing incessantly.Consequently, can't obtain required braking force.
Fig. 9 (b) expression weaves the organizine that become by the ceramic-fibre twisted and tram and the structure of the ceramic plate 42 made.Under the state that each fiber has been carried out braiding (being fiber not to be woven and ceramic plate that fibre matting is formed at least), the friction force shown in the arrow 32 acts on the end face.But because ceramic- fibre 29,31 is supported in the entanglement position, so ceramic-fibre can not fractureed.
Followingly the friction and the comparative result of wear characteristic are described with reference to Figure 10 to Figure 13.
The condition of the sliding surface of the friction member 3 when Figure 10 represents to use commercially available fiber combination to carry out the frictional behavior comparison as ceramic plate.The face of length direction that Figure 10 (a) expression will promptly can be seen fiber by the face that organizine and tram braiding form is defined as A face at this with this face as the situation of sliding surface.Figure 10 (b) expression will weave the situation of the face of the fiber end face that can see organizine or a certain side of tram that forms as sliding surface by organizine and tram, at this this face will be defined as the B face.Figure 10 (c) expression will be identical with the ceramic plate that in Fig. 7, is illustrated face can see that promptly the face (cutting obliquely and the face that forms with respect to two kinds of fibers) of organizine and this two side's of tram end face as the situation of sliding surface, is defined as the C face at this with this face simultaneously.
Friction test uses pin mill consumption experimental engine to carry out.The identical disk (plectane) of material and guide rail 7 is rotated with the speed of regulation, with friction member 3 with the pressing force of regulation by the surface that is pressed in this disk, with the deceleration/decel of regulation disk is slowed down and stops by electrical motor.As concrete condition, rate of onset is 1500m/min, and pressing force is about 6500N, and deceleration/decel is 5.88m/s
2
Figure 11 represents the Determination of Friction Coefficient result of A face, B face and C face.
Till stopping, obtaining average friction coefficient according to beginning at the friction force of friction member 3 generations and the ratio of pressing force from deceleration.Then, the friction coefficient when the A face is slided on disk is as standard value 1, and compares with the relative friction coefficient of B face and C face.Consequently, the pass of friction coefficient is A face＜B face＜C face, and the friction coefficient of C face is higher about 1.25 times than A face.
The reason that the friction coefficient of C face is higher than other face is because each fiber end face is all outstanding from sliding surface, but also exists edge and disk because of fiber to interfere the resistance that produces.Also have identical effect on the B face, but this effect is littler than C face.That is to say, as long as be arranged to make the end face of ceramic plate 42 on guide rail 7, to slide, just have above-mentioned effect.
In addition, after friction test, B face and C face are observed with electron microscope, it found that at each fiber end and is attached with the cutting powder that produces when interfering with disk, prove that the particle that comes off enters fiber and direct situation of sliding on disc material has obtained preventing.
Figure 12 is the comparative result of the abrasion loss of friction member 3.
Abrasion loss when the A face is slided on disk is during as standard value 1, and the abrasion loss of B face is about 0.4, and the abrasion loss of C face is about 0.13, and abrasion loss reduces according to the order of sequence.Why serious reason is that the combination between the fiber is peeled off a little less than comparing with weaving direction easily because shear action between fiber, is filled equably though be present in the oxide on raw fibre surface between the fiber in the abrasion of A face.Therefore, be that abrasion have taken place fiber, not equal to be that stacked fiber has taken place to peel off.Compare with the A face, because can not peel off between the fiber of B face and C face, so abrasion have obtained inhibition.In addition, the C face is more had difficult labour compared with the B face and is given birth to abrasion, and this is because of the shared bigger cause of ratio of fiber in the face that bears friction force.
Figure 13 is the comparative result of the abrasion loss of disk (being equivalent to guide rail 7).
Aspect friction member 3, use the fine ceramics that constitutes by silicon nitride material as a comparison, and use commercially available fiber combination as the material that in Fig. 7, is illustrated, with the abrasion loss of comparative material as standard value 1.Can know that from result relatively the abrasion loss when the C face slides is little on disk, be 0.1.This material hardness with both is relevant.Vickers hardness as the SS400 material of disc material is about 120HV (ball hardness is 115HB) in scaled value, and the hardness of comparative material is about 1400HV, so comparative material does not wear away substantially, and the abrasion of disk are remarkable.
Relative therewith, the hardness of the enforcement material that is described in Fig. 7 is about 1000HV (Shore hardness is about 100HS) in scaled value, therefore can self wear away the abrasion that suppress disk by making.In addition, disc surfaces is because of to interfere the situation that causes the rugosity chap also very slight with the fiber end face.And the observation that the outward appearance of having carried out the friction member after friction and the abrasion test is carried out shows fractureing and the breakage of end etc. of fiber is not taken place.
As mentioned above, at both direction ceramic-fibre is woven and form ceramic plate, this ceramic plate is stacked and obtain friction member, make the fiber end face of this friction member outstanding from sliding surface, can in the damage that suppresses the other side's member (guide rail 7), guarantee friction and the wear characteristic stipulated thus, even be applied in command speed is 480～1500m/min, the quality of lift car (falling quality) is in the elevator more than the 20ton, also can lift car be stopped, therefore can realizing the elevator of high reliability.
In addition, by being tangled, ceramic-fibre forms the ceramic plate of cloth shape, perhaps ceramic-fibre is twisted and form the ceramic plate of textile-like, when described ceramic plate being applied to the elevator of command speed below 360m/min, required braking force can be produced, and the situation generation that guide rail surface sustains damage can be suppressed.
Claims (11)
1. emergency braking apparatus produces braking force by brake component being pushed be arranged on the guide rail in the hoist trunk and it is slided on this guide rail, with this lift car is stopped, and described emergency braking apparatus is characterised in that,
Have ceramic plate and supporter, described ceramic plate is the cloth-like thing that is formed by ceramic-fibre, be arranged on described brake component on the sliding surface that slides on the described guide rail, described supporter is fixed this ceramic plate, makes the end face of this ceramic plate slide on described guide rail.
2. emergency braking apparatus as claimed in claim 1 is characterized in that,
The length direction that described ceramic plate is configured to its end face is the vertical of described guide rail.
3. emergency braking apparatus as claimed in claim 1 is characterized in that,
By described ceramic-fibre mat being formed the described ceramic plate of cloth shape.
4. emergency braking apparatus as claimed in claim 1 is characterized in that,
By being woven into textile-like, described ceramic-fibre forms described ceramic plate.
5. emergency braking apparatus as claimed in claim 1 is characterized in that,
Organizine by making described ceramic-fibre and tram alternately come-up and sedimentation are woven into plain cloth or satin fabric, form described ceramic plate thus.
6. emergency braking apparatus as claimed in claim 1 is characterized in that,
So that the length direction of the end face of described ceramic plate becomes the mode of vertical of described guide rail at the described ceramic plate of the stacked polylith of the Width of described guide rail.
7. emergency braking apparatus as claimed in claim 1 is characterized in that,
Described ceramic-fibre is twisted the organizine that forms and tram alternately come-up and sedimentation are woven into plain cloth by making, form described ceramic plate thus, from above with respect to organizine and tram bevelled direction described ceramic plate is cut when observing, the end face that forms by cutting slides on described guide rail.
8. emergency braking apparatus as claimed in claim 1 is characterized in that,
The described ceramic plate of polylith is stacked on the Width of described guide rail, is applied with compressive force on stacked direction.
9. elevator, this elevator has emergency braking apparatus, and described emergency braking apparatus produces braking force by brake component being pushed be arranged on the guide rail in the hoist trunk and it is slided on this guide rail, with this lift car is stopped, and described elevator is characterised in that,
Described emergency braking apparatus has ceramic plate and supporter, described ceramic plate is the cloth-like thing that is formed by ceramic-fibre, be arranged on described brake component on the sliding surface that slides on the described guide rail, described supporter is fixed this ceramic plate, makes the end face of this ceramic plate slide on described guide rail.
10. elevator as claimed in claim 9 is characterized in that,
By being woven into textile-like, described ceramic-fibre forms described ceramic plate.
11. elevator as claimed in claim 9 is characterized in that,
Organizine by making described ceramic-fibre and tram alternately come-up and sedimentation are woven into textile-like, form described ceramic plate thus, and the command speed of described lift car is 480～1500m/min.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010094594A JP5427682B2 (en) | 2010-04-16 | 2010-04-16 | Emergency stop device and elevator using the same |
| JP2010-094594 | 2010-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102219140A true CN102219140A (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100421505A Pending CN102219140A (en) | 2010-04-16 | 2011-02-17 | Emergency brake device and elevator using the emergency brake device |
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| Country | Link |
|---|---|
| JP (1) | JP5427682B2 (en) |
| CN (1) | CN102219140A (en) |
Cited By (6)
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| CN102417130A (en) * | 2010-09-24 | 2012-04-18 | 株式会社日立制作所 | Emergency braking device and elevator using same |
| CN104583111A (en) * | 2012-08-28 | 2015-04-29 | 株式会社日立制作所 | Device for stopping elevator in emergency and elevator |
| CN107055253A (en) * | 2017-03-14 | 2017-08-18 | 厦门升通电梯有限公司 | With the elevator accidental movement amount control device for buffering gradable braking |
| US20180251339A1 (en) * | 2017-03-06 | 2018-09-06 | Thyssenkrupp Elevator Ag | High speed bearing assembly for elevator safety gear and methods of making and using same |
| US10309475B2 (en) | 2017-03-06 | 2019-06-04 | Thyssenkrupp Elevator Ag | Elevator brake pad mounting systems and methods for making and using same |
| US20240101392A1 (en) * | 2022-09-27 | 2024-03-28 | Otis Elevator Company | Elevator system safety brake |
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| JP2016064893A (en) * | 2014-09-25 | 2016-04-28 | 株式会社日立製作所 | Emergency stop device for elevator |
| US10214385B2 (en) * | 2017-01-25 | 2019-02-26 | Otis Elevator Company | Elevator brake wedge |
| EP3666713A1 (en) * | 2018-12-13 | 2020-06-17 | Inventio AG | Brake shoe and safety brake device for a lift |
| CN113860114A (en) * | 2021-09-13 | 2021-12-31 | 大赛璐安全系统(江苏)有限公司 | Safety gear additional propulsion device for preventing elevator from falling |
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| US5979615A (en) * | 1997-11-06 | 1999-11-09 | Otis Elevator Company | Carbon--carbon composite elevator safety brakes |
| DE10225954A1 (en) * | 2002-06-11 | 2003-12-24 | Schunk Kohlenstofftechnik Gmbh | Fiber composite component |
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| JPH0971769A (en) * | 1995-09-06 | 1997-03-18 | Toshiba Corp | Brake material and emergency stopper for elevator |
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| JP2007161436A (en) * | 2005-12-15 | 2007-06-28 | Hitachi Ltd | Elevator and emergency stopper used therefor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417130A (en) * | 2010-09-24 | 2012-04-18 | 株式会社日立制作所 | Emergency braking device and elevator using same |
| CN102417130B (en) * | 2010-09-24 | 2015-05-20 | 株式会社日立制作所 | Emergency braking device and elevator using same |
| CN104583111A (en) * | 2012-08-28 | 2015-04-29 | 株式会社日立制作所 | Device for stopping elevator in emergency and elevator |
| CN104583111B (en) * | 2012-08-28 | 2016-07-20 | 株式会社日立制作所 | The emergency braking apparatus of elevator and elevator |
| US20180251339A1 (en) * | 2017-03-06 | 2018-09-06 | Thyssenkrupp Elevator Ag | High speed bearing assembly for elevator safety gear and methods of making and using same |
| US10309475B2 (en) | 2017-03-06 | 2019-06-04 | Thyssenkrupp Elevator Ag | Elevator brake pad mounting systems and methods for making and using same |
| US10597257B2 (en) | 2017-03-06 | 2020-03-24 | Thyssenkrupp Elevator Ag | High speed bearing assembly for elevator safety gear and methods of making and using same |
| CN107055253A (en) * | 2017-03-14 | 2017-08-18 | 厦门升通电梯有限公司 | With the elevator accidental movement amount control device for buffering gradable braking |
| CN107055253B (en) * | 2017-03-14 | 2022-08-05 | 厦门升通电梯有限公司 | Elevator accidental movement amount control device with buffer gradable braking function |
| US20240101392A1 (en) * | 2022-09-27 | 2024-03-28 | Otis Elevator Company | Elevator system safety brake |
| US12103822B2 (en) * | 2022-09-27 | 2024-10-01 | Otis Elevator Company | Elevator system safety brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011225303A (en) | 2011-11-10 |
| JP5427682B2 (en) | 2014-02-26 |
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