CN107848761A - Elevator hoist and elevator - Google Patents

Elevator hoist and elevator Download PDF

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Publication number
CN107848761A
CN107848761A CN201580081931.1A CN201580081931A CN107848761A CN 107848761 A CN107848761 A CN 107848761A CN 201580081931 A CN201580081931 A CN 201580081931A CN 107848761 A CN107848761 A CN 107848761A
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CN
China
Prior art keywords
brake
electro
braking device
support shaft
magnetic braking
Prior art date
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Granted
Application number
CN201580081931.1A
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Chinese (zh)
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CN107848761B (en
Inventor
松本达也
尾方尚文
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Hitachi Ltd
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Hitachi Ltd
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Publication of CN107848761B publication Critical patent/CN107848761B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals
    • B66B11/08Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/04Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)

Abstract

Present invention aims at the lightweight for realizing elevator hoist and the miniaturization of overall dimensions.In the elevator hoist for possessing electro-magnetic braking device (15), electro-magnetic braking device (15) includes:Brake shoe (27a, 27b), armature (28), main body (33), retainer (35) and floating installation (42), and movably cantilever support, axle portion part (5) are installed on the housing (1a) of traction machine via brake support frame (50) in axial direction by least two axle portion part (5).Axle portion part (5) includes:Be inserted into electro-magnetic braking device (15), axially movably support electro-magnetic braking device (15) support shaft (37);With the flange part (38) of the one end setting in support shaft (37), retainer (35) and floating installation (42) are installed on flange part (38).

Description

Elevator hoist and elevator
Technical field
The present invention relates to elevator hoist and elevator.
Background technology
In nearest lift appliance, in order to suppress the purpose of the height of building, do not set and receive on the top of lifting hoistway Receive the mechanical Machine Rooms such as elevator hoist (following brief note make traction machine), but set in hoistway is lifted mechanical So-called machine room-less elevator device is popularized.
In the case of the machine room-less elevator device, include the complete of traction machine by what prior art was set in Machine Room Portion's machine is arranged in lifting hoistway.Set the structure of traction machine varied in lifting hoistway, in order in lifting hoistway Traction machine is set, it is necessary to make traction machine miniaturization and lightweight.It is certainly, existing to be provided with the lift appliance of Machine Room, It is required that the miniaturization and lightweight of traction machine.
" make the rotor of motor as having been recorded in existing traction machine, such as patent document 1, cable progress is risen to volume Roll up the integrally-formed rotation module of brake disc of the driving sheave and disk brake of lift operations.By in base module The magnetic force acted between the stator and rotor of the motor of upper setting carries out rotation process to rotation module, makes disk brake Friction means crimped with the side of brake disc so that rotate module rotation stop." as technology (reference explanation book Summary).
In addition, as traction machine, such as have the traction machine of the structure shown in Fig. 8 A~Fig. 8 C.Fig. 8 A be for the present invention Comparative example outside drawing (left side view) of the traction machine 110 from the opposite side for the side for being provided with rope sheave 114.Fig. 8 B are For outside drawing (front view) of the traction machine 110 with comparative example of the invention from front.Fig. 8 C be for the present invention Comparative example traction machine 110 from the outside drawing (right side view) of the unilateral observation of rope sheave 114.
Traction machine 110 shown in Fig. 8 A~Fig. 8 C is fixedly installed on Machine Room or lifts pit madial wall of hoistway etc. Place, the volume for being connected the car with lift appliance by defined operation rise cable volume and risen.Traction machine 110 includes:Housing 101;Rope sheave 114 being rotatably mounted on housing 101, being wound with liter cable;It is integrally provided and revolves with rope sheave 114 The brake disc 126 turned;With the electro-magnetic braking device 115 braked to brake disc 126.Moreover, electro-magnetic braking device 115 is via encirclement The large-scale supporting support 147 of the electro-magnetic braking device is fixed on housing 101.
Fig. 9 is the major part amplification plan view from IX directions for the electro-magnetic braking device 115 shown in Fig. 8 A.System Movably support shaft 137 supports dynamic device 115 on the direction of principal axis of support shaft 137, and support shaft 137 is supported by 147, support Hold both ends.
Above-mentioned existing traction machine is by the motor drive mechanism of so-called outer-rotor type into so being needed in the case of being braked to rotor portions Want larger brake force.Therefore, in order to ensure the brake force applied to brake disc of ormal weight, it is provided with for brake disc 126 2 independent electro-magnetic braking devices 115.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2004-299824 publications
The content of the invention
The invention problem to be solved
But the supporting support of electro-magnetic braking device is supported, since it is desired that the urgent system born for electro-magnetic braking device Excessive torque when dynamic ensures sufficient intensity, and is to fix the both ends of support shaft to stably keep support shaft Structure on support 147, so formed thick and heavy and large-scalely.Therefore, in order that traction machine miniaturization and lightweight, it is necessary to Improve the mounting structure for electro-magnetic braking device being arranged on housing.In addition, from the workability during construction of lift appliance Aspect also require the miniaturization and lightweight of traction machine.
Present invention aims at the lightweight for realizing elevator hoist and the miniaturization of overall dimensions.
For solving the method for problem
In order to reach above-mentioned purpose, elevator hoist of the invention includes:Housing;It is rotatably mounted in above-mentioned housing , rope sheave for winding cable;The brake disc for being integrally provided and rotating with above-mentioned rope sheave;With to above-mentioned brake disc system Dynamic electro-magnetic braking device, above-mentioned electro-magnetic braking device include:A pair of the brake shoes braked to above-mentioned brake disc;In holding State the armature of one of a pair of brake shoes;Keep the main body of the other of above-mentioned a pair of brake shoes;For limiting above-mentioned rank The retainer that iron moves to the specific direction in the direction away from above-mentioned brake disc;Exerted a force with to aforementioned body to above-mentioned specific direction Floating installation, and above-mentioned electro-magnetic braking device via at least two axle portion part axially movably by cantilever support, on State axle portion part and be installed in above-mentioned housing via brake support frame, above-mentioned axle portion part includes:Support shaft, it is inserted into above-mentioned electricity In magnetic detents, the electro-magnetic braking device is supported in a manner of the electro-magnetic braking device is moveable in axial direction;And setting Flange part in a side of above-mentioned support shaft, above-mentioned retainer and above-mentioned floating installation are installed on above-mentioned flange part.
Invention effect
In accordance with the invention it is possible to realize the lightweight of traction machine and the miniaturization of overall dimensions.In addition, class other than the above Topic, structure and effect, will be illustrated by the explanation of implementation below.
Brief description of the drawings
Figure 1A is the traction machine 10 for embodiments of the invention from the opposite side for the side for being provided with rope sheave 14 Outside drawing (left side view).
Figure 1B be for embodiments of the invention traction machine 10 from front from outside drawing (front view).
Fig. 1 C are the traction machines 10 for embodiments of the invention from the outside drawing (right side view) of the unilateral observation of rope sheave 14.
Fig. 2 is the II-II sectional views of the traction machine 10 shown in Fig. 1 C.
Fig. 3 A are the major part amplification plan view from III directions for the electro-magnetic braking device 15 shown in Fig. 1 C.
Fig. 3 B are for top view of the electro-magnetic braking device 15 from IIIB directions shown in Fig. 3 A.
Fig. 3 C are for top view of the electro-magnetic braking device 15 from IIIC directions shown in Fig. 3 A.
Fig. 4 is the figure of state when representing the brake of the electro-magnetic braking device 15 shown in Fig. 3 A.
The figure of state when Fig. 5 is the brake opening for representing the electro-magnetic braking device 15 shown in Fig. 3 A.
Fig. 6 is the rearview of the traction machine 10 of embodiments of the invention, is the figure for representing form when brake is safeguarded.
Fig. 7 is the schematic diagram of the summary for the lift appliance 67 for representing the traction machine 10 using the present invention.
Fig. 8 A are to be seen for the traction machine 110 with comparative example of the invention from the opposite side for the side for being provided with rope sheave 114 The outside drawing (left side view) examined.
Fig. 8 B are the outside drawing (front view) from front for the traction machine 110 with comparative example of the invention.
Fig. 8 C are that from the outside drawing of the unilateral observation of rope sheave 114, (right side regards for the traction machine 110 with comparative example of the invention Figure).
Fig. 9 is the major part amplification plan view from IX directions for the electro-magnetic braking device 115 shown in Fig. 8 A.
Embodiment
For possessing one embodiment of the lift appliance of the traction machine 10 using the present invention, illustrated with reference to figure 6.Figure 7 be the schematic diagram of the summary for the lift appliance 70 for representing the traction machine 10 using the present invention.In the present embodiment, with lifting hoistway Illustrate exemplified by the lift appliance of the mechanical machine House-less mode of middle setting.Traction machine 10 using the present invention also can be used in matching somebody with somebody Put the lift appliance of the mode of Machine Room.
In the inner side of lifting hoistway 60, car 61, counterweight 62 and traction machine 10 are configured with.Traction machine 10 is configured in lift well In the wall in road 60 and the gap of car 61.Wound in the cable 63 on rope sheave 14, one end is via on the top of lifting hoistway 60 The pulley 64a set on portion 60a and pulley 65a, 65b for being set in the bottom of car 61 and top 60a connections.In addition, cable 63 other end is connected via the pulley 64b set on the 60a of top and the pulley 66 set on counterweight 62 with top 60a.
Lift appliance 70 operates cable 63 by using the rope sheave 14 of traction machine 10, and makes 61 liters of car in lifting hoistway 60 Drop.That is, the cable 63 linked by using the operation of rope sheave 14 with car 61, car 61 lift.Therefore it is provided with control traction machine 10 Control device 67.
Hereinafter, the embodiment of the traction machine based on the brief description of the drawings present invention.
With reference to figure 1A, Figure 1B, Fig. 1 C and Fig. 2, illustrate the structure of traction machine 10.Figure 1A is for embodiments of the invention Outside drawing (left side view) of the traction machine from the opposite side for the side for being provided with rope sheave.Figure 1B is the implementation for the present invention Outside drawing (front view) of the traction machine of example from front.Fig. 1 C are the traction machines for embodiments of the invention from rope sheave one The outside drawing (right side view) of side observation.Fig. 2 is the II-II sectional views of the traction machine shown in Fig. 1 C.
The traction machine 10 of the present embodiment mainly possesses housing 1, be rotatably installed in it is on housing 1, be wound with cable Rope sheave 14, the brake disc 26 for being integrally provided and rotating with rope sheave 14, and the structure of electro-magnetic braking device 15 to the braking of brake disc 26 Into.
Housing 1 forms the housing recess 21 of ring-type in front face side, in the boss portion 16 of the center residual of the housing recess 21 Front end be provided projectingly the abutment wall 17 of bottomed cylindrical.In the shaft core position of the abutment wall 17 and boss portion 16, with insertion The mode of housing 1 is formed with axis hole 18.Main shaft 19 is fixed with axis hole 18.In addition, in the side of the inner circumferential side of housing recess 21 On face (the periphery wall of abutment wall 17), the stator 22 of motor 7 is installed.Stator 22 has winding, makes magnetic field by being powered Continuously change.In addition, the side for being provided with rope sheave 14 is defined as front face side by traction machine, the side of rope sheave 14 will be provided with Opposite side is defined as side below or rear side.
Rope sheave 14 is integrally formed rotation module 2 with brake disc 26.The rotation module 2 is overall to be presented substantially circular plate type Shape, its axle center part (central part) is supported on main shaft 19 via bearing 23, and its periphery edge is made up of brake disc 26.And And rotation module 2 a side side (rear or backside) upper motor 7 rotor 31 along main shaft 19 direction of principal axis extension Set.In addition, on the side (above) of the opposing party of rotation module 2, it is fixed with bolt (not shown) etc. for volume Rise the rope sheave 14 that cable roll up lift operations.
The rotor 31 of motor 7 is by with the cylindrical wall 24 that is integrally formed of rotation module 2 and in the cylindrical wall 24 Fixed permanent magnet 25 is formed in peripheral wall surfaces.Moreover, the rotor 31 insertion is configured in the housing recess 21 of housing 1, rotor 31 Diametrically stood facing each other across air gap with the magnetic action face of stator 22.
On the top of housing 1, electro-magnetic braking device 15 is provided with.Electro-magnetic braking device 15 is with respect to rotation module 2 pivot, the plane 10A parallel with the direction of principal axis of main shaft 19 are symmetrically configured.That is, make in the traction machine 10 of the present embodiment With 2 electro-magnetic braking devices 15.Details are aftermentioned, but electro-magnetic braking device 15 by a pair of brake shoes 27a, 27b and keeps a side's Brake shoe 27a armature 28 and brake shoe 27b brake main body (main body) 33 (with reference to figure 3) of holding the opposing party etc. are formed. In addition, electro-magnetic braking device 15 is installed on the installation portion 1a of housing 1.
Then, with reference to figure 3A, Fig. 3 B and Fig. 3 C, the structure of electro-magnetic braking device 15 is illustrated.Fig. 3 A are for shown in Fig. 1 C Major part amplification plan view of the electro-magnetic braking device 15 from III directions.Fig. 3 B are the electromagnetic systems shown in for Fig. 3 A Dynamic top view of the device 15 from IIIB directions.Fig. 3 C are to be seen for the electro-magnetic braking device 15 shown in Fig. 3 A from IIIC directions The top view examined.
1 electro-magnetic braking device 15 is by direction of principal axis of 2 axle portion parts 5 along support shaft 37 movably cantilever support, axle portion Part 5 is arranged on housing 1 via brake support frame 50.That is, axle portion part 5 by the cantilever support of brake support 50 on housing 1.
Illustrate in more detail, 2 through hole 33a for being used for insertion axle part 5 are provided with brake main body 33. Axle portion part 5 is used to electro-magnetic braking device 15 being movably supported on brake support frame 50, by the circle in insertion through hole 33a Bar-shaped support shaft 37 and the discoid flange part 38 set in the front of the support shaft 37 (one end side) and propping up The shape in the section for being orthogonal to direction of principal axis being coaxially disposed between axle 37 and flange part 38 is held into the hexagonal portion of regular hexagon 45 are formed.Formed with screwed hole 37a on the end face of the rear end side (other end side) of support shaft 37.
On brake support frame 50, the installation portion 50a for the rearward end of support shaft 37 to be inserted is provided with, in installation portion 50a farthest side end, fixed component 39 are integrated with brake support frame 50 by bolt 51.The rearward end of support shaft 37 is inserted After entering in the mounting hole 50c set on the installation portion 50a of brake support frame 50, across fixed component 39 by fixing bolt (bolt) 46 are arranged in the screwed hole 37a of support shaft 37, and thus brake support frame 50 is fixed with axle portion part 5.Herein, support shaft 37 is right Installation portion 50a insertion is set to the length dimension L50a bigger than the diameter of axle dimension D 37 of support shaft 37.It is long in the present embodiment It is the length dimension bigger than diameter of axle dimension D 37 to spend size L50a, is more than the 1/3 of the total length of support shaft 37.
In addition, in order that support shaft 37 is elongated to installation portion 50a intubating length, installation portion 50a along support shaft 37 Edge supporting at the support 50d of brake support frames 50 of the length dimension L50a of axial direction than supporting installation portion 50a The length dimension L50d of the axial direction of axle 37 is longer.Thus, formed in installation portion 50a suitable with length dimension L50a Support shaft 37 insertion section.In addition, installation portion 50a is elongated by making its length dimension L50a, one end part is in brake disc 26 Outer peripheral face on, the other end is located at the rear side of traction machine 10 relative to brake shoe 27b.So as to as shown in figure 4, by electromagnetism The line l37 of the rear end connection of 2 support shafts 37 set on brake apparatus 15 is located at the back of the body of traction machine 10 relative to brake shoe 27b Surface side.In the present embodiment, in the case where brake shoe 27b has been moved into the state for the position for clamping brake disc 26, line l37 is on edge In the axial direction of support shaft 37, positioned at the position roughly the same with the rear end face 33b of brake main body 33, or relatively It is located at the rear side of traction machine 10 in rear end face 33b.
Thus, during the brake force force of brake, stress caused by the inside of support shaft 37 can be made along support shaft 37 Direction of principal axis disperses to wider scope.Thus, it is possible to the deformation of the support shaft 37 when fully reducing the brake force force of brake. In addition, in the present embodiment, support shaft 37 is manufactured with hexagonal cutting rolled steel.
Brake support frame 50 is arranged on by bolt 52 on the installation portion 1a of housing 1.In addition, installation portion 1a is arranged on and shell The more backrest surface side (the opposite side of the opposite side of sheave, i.e. rope sheave) that the central portion of the thickness of body 1 is compared.This is to dangle When load force, housing 1 deform with swinging to sheave side, deformation does not interfere with brakeage, so being arranged on as far as possible 1 indeformable rear side of housing.
On flange part 38, it is fixed with order to which the gap between brake disc 26 and brake shoe 27a, 27b of left and right (is referred to Fig. 4) remain identical dogbolt (retainer) 35.Dogbolt 35 from armature 28 in order to diametrically highlightedly setting The pin 34 (aftermentioned) put contacts, it is necessary to carry out the direction adjustment on the direction of rotation A (with reference to figure 3C) of support shaft 37, tune well The posture of whole flange part 38.Therefore, hexagonal portion 45 is provided with a part for support shaft 37, by the hexagonal portion 45 Insertion spanner etc. can carry out the centering adjustment of direction of rotation.In addition, the hexagonal portion 45 passes through by the rear end side of support shaft 37 When by fixed component 39 with fixing bolt 46 being fixed on the installation portion 1a of housing 1, play a part of preventing support shaft 37 from dallying. In addition, as long as spanner of hexagonal portion 45 set in support shaft 37 etc. is inserted into, as long as with least orthogonal The structure in 2 faces being parallel to each other is formd in cross sectional shape when the plane of direction of principal axis is blocked, its shape can is any 's.
Herein, the maintenance of electro-magnetic braking device 15 is illustrated with reference to figure 6.Fig. 6 is the traction machine 10 of embodiments of the invention Rearview, it is the figure for representing form when brake is safeguarded.
Electro-magnetic braking device 15 is for maintaining depending on performance phase putting maintenance into practice, visual inspection brake shoe 27a, 27b mill There is foreign etc. on damage state and surface, if it find that abnormal then need to carry out part replacement.Now, (lifting) electromagnetic braking is opened Device 15 is visually inspected or part replacement.In the present embodiment, on the installation portion 50a of brake support frame 50 outer peripheral face, Formed has the projection 50b of screwed hole on the direction at a right angle with the direction of principal axis of support shaft 37, installs dogbolt in this place 54.The nut 53 that is locked of dogbolt 54 is fixed.Thus, when turning into opening electro-magnetic braking device 15, brake main body 33 is passed through Contacted with the head of dogbolt 54 and limit opening (open angle) α structure (with reference to figure 6).Opening α can be by only The amount of screwing of dynamic bolt 54 makes exposure level change and be finely adjusted.Opening α is it can be considered that gap L with building walls The decision of the upkeep operation of (with reference to figure 6) and electro-magnetic braking device 15, but preferably 10~30 °.
So, in the present embodiment, electro-magnetic braking device 15 is by 2 axle portion parts 5 axially movably cantilever support, axle Part 5 is arranged on housing 1 via brake support frame 50.It therefore, there is no need to surround electro-magnetic braking device as prior art 15 large-scale supporting support at support shaft both ends etc., small-sized, the light weight of electro-magnetic braking device 15 and traction machine 10 can be realized Change.
Then, illustrated for action reference Fig. 4 and Fig. 5 of electro-magnetic braking device 15.Fig. 4 is represented shown in Fig. 3 A The figure of state during the brake of electro-magnetic braking device 15.Fig. 5 is the system for representing the electro-magnetic braking device 15 shown in Fig. 3 A The figure of state when dynamic device is opened.
Electro-magnetic braking device 15 in the present embodiment is in the structure for using axle portion part 5 to be arranged on housing 1 as described above With feature.Known structure can be used on the internal structure beyond the structure.
Illustrate summary for the internal structure.Electro-magnetic braking device 15 has:Circumferential lateral surface for urges brake disk 26 A pair of brake shoes 27a, the 27b braked to brake disc 26;Keep the brake shoe 27a of side armature 28;In order to be applied to rope sheave 14 Braking forces thereto and the tripping spring 36 to be exerted a force to armature 28 to the side of brake disc 26 (Fig. 4 C directions);With by the tripping spring 36 electricity for compressing and brake shoe 27a, 27b being opened from the circumferential lateral surface of brake disc 26, make rope sheave 14 turn into rotatable state Magnetic driving portion 29.
Electromagnetic drive part 29 is used using fixing bolt (not shown) by directly or indirect via other installing components Ground is fixed on the structure in brake main body 33.It is that electromagnetic drive part 29 passes through connection shaft 55 and brake master in the present embodiment Body 33 links, and electromagnetic drive part 29 and the relative position of brake main body 33 are fixed.In brake main body 33, directly, Or it is fixed with the brake shoe 27b of the opposing party indirectly via other installing components, to the outer circumferential side of the opposing party of brake disc 26 The mechanism that face is braked or opened it.
Electro-magnetic braking device 15 is with the brake shoe 27a kept by armature 28 and the system being fixed in brake main body 33 Dynamic boots 27b clamps brake disc 26 so as to obtain the structure of higher brake force from both sides.
Electromagnetic drive part 29 plays a part of the electromagnet for electromagnetically attracting armature 28, by magnet coil (not shown) Combination with iron core is formed.Iron core uses the big material of magnetic conductivity.Tripping spring 36 is to the rank that is set in electro-magnetic braking device 15 Iron 28 and brake shoe 27a the 1st assembly 43 (bottom right oblique line) pushes to the side of brake disc 26 (C directions in figure).As a result, in electricity In the state of the magnet coil in Magnetic driving portion 29 is not powered on, the outer circumferential side of brake shoe 27a sides of urges brake disk 26 strongly Face (right flank in figure).Now, tripping spring 36 is the state of also non-full extension, remains spring force.
So brake main body 33 and electromagnetic drive part 29 and brake shoe 27b the 2nd assembly 44 (upper right oblique line) is because of it Reaction force and it is mobile to opposite direction (D directions in figure).As a result, the brake shoe of the opposing party set in brake main body 33 The circumferential lateral surface (left surface in figure) of 27b the opposing party of urges brake disk 26 strongly.Thus, electro-magnetic braking device 15 has Brake disc 26 is clamped from both sides with brake shoe 27a, 27b, rope sheave 14 is maintained the function of on-position.
On the other hand, by flowing through electric current in the magnet coil of electromagnetic drive part 29, iron core is excited, and armature 28 is electric Magnetic driving portion 29 attracts.As a result, as shown in figure 5, the spring force that armature 28 resists tripping spring 36 is made to brake shoe 27a to remote Direction (D directions in the specific direction, figure) driving of Moving plate 26.That is, move in the 1st assembly 43 D directions into figure.Then, for The brake force of one side of brake disc 26 is released from.
The D directions into figure of armature 28 are moved until pin 34 and the dogbolt being fixed on the flange part 38 of support shaft 37 35 contacts.At the time point that the pin 34 of armature 28 contacts with dogbolt 35, armature 28 is in also not tight with electromagnetic drive part 29 The state of patch.Therefore, the confined armature 28 of the movement in the 2nd assembly 44 towards the D directions into figure is to opposite direction (C side in figure To) mobile.Thus, the brake shoe 27b of the opposing party set in brake main body 33 is driven to the direction away from brake disc 26 It is dynamic, it is released from for the brake force of the opposing party of brake disc 26.
In addition, because these actions are rapidly carried out, in the presence of reaction when being collided because of pin 34 and dogbolt 35, And the possibility in gap is produced between pin 34 and dogbolt 35.That is, gap is produced between pin 34 and dogbolt 35 When electromagnetic drive part 29 is close to armature 28 under state, the 1st assembly 43 and the 2nd assembly 44 are integrally moving to the left It is static under state.In this case, it is likely to become the state of affairs that brake disc 26 also connects with brake shoe 27a after brake force releases.Then, 1st assembly 43 and the 2nd assembly 44 are pulled to the D directions (right in Fig. 5 by using the floating installation 42 being made up of spring etc. To), thus pin 34 is always close to dogbolt 35 in brake force releasing.Using adjustment dogbolt 35 protrusion, with Make the impartial knots of the gap X2 between the gap X1 between brake disc 26 and brake shoe 27a and brake disc 26 and brake shoe 27b Structure.
On the other hand, when blocking the energization to the magnet coil of electromagnetic drive part 29, the demagnetization of electromagnetic drive part 29, therefore such as Upper described, the circumferential lateral surface of a pair of brake shoe 27a, 27b urges brake disks 26 applies to rope sheave 14 brakes.
As described above, according to the present embodiment, electro-magnetic braking device 15 is by 2 axle portion parts 5 axially movably cantilever Supporting.Axle portion part 5 is installed on housing 1 via brake support frame 50, and is formd installation on axle portion part 5 and be used for suitably Ground keeps the dogbolt 35 in gap and the flange part 38 of floating installation 42 between brake disc 26 and brake shoe 27a, 27b.It is logical Cross such structure, it is not necessary to existing large-scale supporting support, can make electro-magnetic braking device 15 is installed on housing 1 Mounting structure simplifies.So as to which in the present embodiment, the overall weight of traction machine 10 can be reduced, and realize the whole of traction machine 10 The miniaturization of body size.
With Fig. 8 A, Fig. 8 B, Fig. 8 C and Fig. 9 comparatively, existing traction machine 100 in order to electro-magnetic braking device 115 is pacified , it is necessary to be supported to electro-magnetic braking device 15 with support shaft 137 on housing 1, via to surround the both ends of the support shaft 137 The firm supporting support 47 that mode supports is fixed on housing 1.On the other hand, the traction machine 10 of present embodiment is to electromagnetic system With 2 axle portion parts 5, axially movably cantilever support, axle portion part 5 are fixed on shell to dynamic device 15 via brake support frame 50 On the installation portion 1a of body 1, small-sized, the lightweight of traction machine 10 can be realized.
In addition, because support shaft 37 is integrated with flange part 38, without suitably keeping electro-magnetic braking device 15 The new part of installation site, can realize the reduction of components number.And then because also it is able to light weight as electro-magnetic braking device 15 Change, thus can improve brake shoe 27a, 27b change when or the when of inspecting periodically unload electro-magnetic braking device 15 from traction machine 10 In the case of attendant workability.
In addition, the present invention is not limited to above-mentioned embodiment, including various modifications example.For example, above-mentioned embodiment be for It is easy-to-understand to illustrate the present invention and describes in detail, is not limited to the entire infrastructure that must possess explanation.In addition, for A part for the structure of embodiment, it can add, delete, replace other structures.
In addition, the traction machine of the present invention can be used in the lift appliance of machine House-less mode and the elevator dress of Machine Room mode Any one party in putting.In addition, electro-magnetic braking device 15 is fixed on housing using 2 axle portion parts 5 and 1 brake support frame 50 On 1, but the quantity of axle portion part 5 and brake support frame 50 is not limited to this.
Symbol description
1 housing
1a ... installation portions
5 ... axle portion parts
10 ... traction machines
14 ... rope sheaves
15 ... electro-magnetic braking devices
26 ... brake discs
27a, 27b ... brake shoe (brake shoe)
28 ... armature
33 ... brake main bodys (main body)
35 ... dogbolts (retainer)
37 ... support shafts
37a ... screwed holes
38 ... flange parts
39 ... fixed components
42 ... floating installations
45 ... hexagonal portions
46 ... fixing bolts (bolt)
50 ... brake support frames
51 ... fixed component fixing bolts
53 ... locking nuts
54 ... dogbolts.

Claims (8)

1. a kind of elevator hoist, it includes:Housing;It is rotatably mounted in the housing, rope for winding cable Wheel;The brake disc for being integrally provided and rotating with the rope sheave;With the electro-magnetic braking device braked to the brake disc, institute Elevator hoist is stated to be characterised by:
The electro-magnetic braking device includes:
A pair of the brake shoes braked to the brake disc;
Keep the armature of one of the pair of brake shoe;
Keep the main body of the other of the pair of brake shoe;
The retainer moved for limiting the armature to the specific direction in the direction away from the brake disc;With
The floating installation to be exerted a force to the main body to the specific direction, and
The electro-magnetic braking device is via at least two axle portion part axially movably by cantilever support, the axle portion part warp The housing is installed in by brake support frame,
The axle portion part includes:
Support shaft, it is inserted into the electro-magnetic braking device, moveable square in axial direction with the electro-magnetic braking device Formula supports the electro-magnetic braking device;With
The flange part of a side of the support shaft is arranged at,
The retainer and the floating installation are installed on the flange part.
2. elevator hoist as claimed in claim 1, it is characterised in that:
The installation portion for the other end of the support shaft to be inserted is provided with the brake support frame,
By the supporting length that axially installation portion inserts, the diameter of axle than the support shaft is long.
3. elevator hoist as claimed in claim 2, it is characterised in that:
It is more than the 1/3 of the total length of the support shaft by the supporting length that axially installation portion inserts.
4. elevator hoist as claimed in claim 2, it is characterised in that:
The axle portion part includes hexagonal portion, and position of the hexagonal portion between the support shaft and the flange part is coaxially Set, with the plane for the direction of principal axis for being orthogonal to the support shaft block obtained by cross sectional shape be hexagon.
5. the elevator hoist as any one of claim 2~4, it is characterised in that:
Axially formed with screwed hole on the end face of the another side of the support shaft,
Inboard end is most leaned in the installation portion, it is with bolt that fixed component is integrated with the brake support frame,
By the installation bolt in the screwed hole of the support shaft, the support shaft is fixed in and the brake support frame The fixed component of integration,
The brake support frame is bolted to the housing.
6. the elevator hoist as any one of claim 2~4, it is characterised in that:
In the outer peripheral face of the installation portion, formed with screwed hole on the direction at a right angle with the direction of principal axis of the support shaft,
It will be bolted in the screwed hole with nut,
When brake is opened in the maintenance of the electro-magnetic braking device, filled by the head and the electromagnetic braking of the bolt The body contact put, carry out the opening of limit stop.
7. such as elevator hoist according to any one of claims 1 to 4, it is characterised in that:
The brake support frame, the center of the thickness of the housing in the direction relative to the rotary shaft along the rope sheave Portion, the side opposite with setting the side of the rope sheave, are fixed on the housing.
8. a kind of lift appliance, it includes:Car;The cable linked with the car;And traction machine, the traction machine, which has, to be used for The rope sheave of the cable is wound, by making the rope sheave rotation operate the cable, lift the car, the elevator Device is characterised by:
Including elevator hoist according to any one of claims 1 to 4 as the traction machine.
CN201580081931.1A 2015-08-28 2015-08-28 Elevator traction machine and elevator Active CN107848761B (en)

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CN111491883A (en) * 2017-12-19 2020-08-04 蒂森克虏伯电梯创新与运营股份有限公司 Elevator drive unit
CN113003463A (en) * 2021-03-23 2021-06-22 深圳市特种设备安全检验研究院 Elevator safety brake
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US11242222B2 (en) 2018-10-26 2022-02-08 Otis Elevator Company Elevator braking device mechanism
CN113371630B (en) * 2020-03-09 2023-02-17 富士达株式会社 Brake device for elevator and elevator
CN117657996A (en) * 2022-08-29 2024-03-08 奥的斯电梯公司 Elevator brake device and elevator system
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CN111491883A (en) * 2017-12-19 2020-08-04 蒂森克虏伯电梯创新与运营股份有限公司 Elevator drive unit
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CN107848761B (en) 2020-05-19
JP6405053B2 (en) 2018-10-17
KR101954585B1 (en) 2019-03-05
JPWO2017037777A1 (en) 2018-02-15
KR20180021120A (en) 2018-02-28

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