Specific embodiment
Hereinafter, pair electromagnetic braking release device and the embodiment example of elevator are illustrated referring to Fig.1~7.In addition, to each
Common component marks identical label in a figure.
1. embodiment example
The structure of 1-1. elevator
Firstly, being illustrated referring to Fig.1 to the structure of elevator involved in embodiment example (hereinafter referred to as " this example ").
Fig. 1 is the brief configuration figure for indicating the structural example of elevator of this example.
As shown in Figure 1, the elevator 1 of this example is set to the elevator 110 being formed in building structure.Elevator 1 includes: in electricity
Carry out in stair shaft 110 lifting action, carry the carriage 120 of people or cargo;Rope 130;Counterweight 140;Traction machine 100.In electricity
The top of stair shaft 110 is equipped with computer room 160.
Traction machine 100 is configured at computer room 160, goes up and down carriage 120 by winding cords 130.In addition, in traction machine
The deflector sheave 150 for being provided with rope 130 is equipped near 100.
Carriage 120 is installed in axial one end of rope 130, counterweight is installed in the axial other end of rope 130
140.Therefore, carriage 120 links via rope 130 and counterweight 140.Then, by driving traction machine 100, carriage 120 is in elevator
Lifting action is carried out in well 110.
The structure of 1-2. traction machine
Then, it is illustrated referring to structure of the Fig. 2 and Fig. 3 to traction machine 100.
Fig. 2 is the side view for indicating traction machine 100, and Fig. 3 is the main view for indicating traction machine 100.
As shown in Figures 2 and 3, traction machine 100 includes plant bottom case 2;Driving motor 3;Traction sheave 4;Brake disc 5;Bearing
Platform 6;Fixing component 7;4 electro-magnetic braking devices 10A, 10B, 10C, 10D.Driving motor 3, bearing are provided in plant bottom case 2
Platform 6 and fixing component 7.
Rotary shaft 8 is connect with driving motor 3.Traction sheave 4 and brake disc 5 are installed on the rotary shaft 8.Rope 130 is wound in
Traction sheave 4.Pedestal 6 is equipped between traction sheave 4 and driving motor 3.Moreover, using pedestal 6 to the driving in rotary shaft 8
The end of 3 side of motor is supported to allow to rotate.
Brake disc 5 is equipped in the side opposite with pedestal 6 of traction sheave 4.Brake disc 5 is fixed on traction sheave, with traction
Wheel 4 is installed on rotary shaft 8 together.Then, if driving motor 3 is driven, rotary shaft 8 rotates, traction sheave 4 and brake disc 5
Rotation with rotary shaft 8 is rotated with being connected.In addition, rotary shaft 8, opposite with the end of 3 side of driving motor one
The end of side is configured with fixing component 7.
Fixing component 7, which includes, to be supported rotary shaft 8 so that its rotatable bearing portion 7a;4 supporting part 9A,
9B,9C,9D.4 supporting parts 9A, 9B, 9C, 9D are set to the peripheral part of fixing component 7.1st supporting part 9A and the 2nd supporting part 9B are set
In the one end of fixing component 7, the 3rd supporting part 9C and the 4th supporting part 9D are set on the other end of fixing component 7.Further, since
4 supporting parts 9A, 9B, 9C, 9D are respectively provided with identical structure, so be only illustrated to the 1st supporting part 9A herein.
1st supporting part 9A has a pair of of arm pieces 11,11.A pair of of arm pieces 11,11 be spaced as defined in interval and it is opposite.And
And the 1st electro-magnetic braking device 10A is installed in a pair of of arm pieces 11,11.In addition, being equipped with the 2nd electricity in the 2nd supporting part 9B
Magnetic detents 10B is equipped with the 3rd electro-magnetic braking device 10C in the 3rd supporting part 9C.Moreover, pacifying in the 4th supporting part 9D
Equipped with the 4th electro-magnetic braking device 10D.Since 4 electro-magnetic braking devices 10A, 10B, 10C, 10D are respectively provided with identical structure, institute
To be only illustrated to the 1st electro-magnetic braking device 10A (hereinafter, being only known as " electro-magnetic braking device 10 ") herein.
Then, it is illustrated referring to detailed construction of the Fig. 4 to electro-magnetic braking device 10 and arm pieces 11.
Fig. 4 is the cross-sectional view for indicating electro-magnetic braking device 10.
As shown in figure 4, the end in the side opposite with the side bearing portion 7a of arm pieces 11 is equipped with directing plate 12 and guide pin
13.Directing plate 12 is along the axial direction of rotary shaft 8 (referring to Fig. 2) and opposite with arm pieces 11.Guide pin 13 be fixed on directing plate 12 and
In arm pieces 11, so that directing plate 12 and arm pieces 11 are linked.In addition, being formed near the guide pin 13 in arm pieces 11 floating
Formula through hole 11a.Also, the end of side in a pair of of arm pieces 11,11, relative to each other is (hereinafter referred to as " before opposite side
End ") 11b is fixed with banking pin 15.
[electro-magnetic braking device]
Then, electro-magnetic braking device 10 is illustrated.
Electro-magnetic braking device 10 has main body 21, electromagnetic drive part 22, the 1st brake-shoe 23, the 2nd brake-shoe 24.
[supporting frame]
Main body 21 has framework 26, support plate 27.Framework 26 is formed as the shape of a part covering of the peripheral part of brake disc 5
Shape.The inner wall 26a opposite with the one side 5a of brake disc 5 in framework 26 is equipped with the 1st brake-shoe 23.1st brake-shoe 23
With brake axle 23a, brake(-holder) block 23b.Brake axle 23a is fixed on inner wall 26a.Moreover, the one of brake(-holder) block 23b and brake disc 5
Face 5a is opposite.In addition, being continuously formed support plate 27 with 26 phase of framework.
Support plate 27 is shaped generally as tabular.The side opposite with the one side 5a in same brake disc 5 of support plate 27 it is another
5b is opposite on one side.In addition, a part of supporting part 27 clamps brake disc 5, it is opposite with the inner wall 26a of framework 26.Support plate 27
Equipped with 2 guide pin bearing portion 27a.Guiding axis bearing portion 27a is formed in the outer edge in support plate 27.In addition, support plate 27
Outer edge is inserted between the arm pieces 11 in supporting part 9 and directing plate 12.Then, guide pin 13 is slidably inserted
Enter guiding axis bearing portion 27a.As a result, via 2 guide pins 13, main body 21 is supported by arm pieces 11 in a movable manner.
In addition, being fixed with floating bolt 41 near the guiding axis bearing portion 27a of support plate 27.41 one end of floating bolt
It is fixed in support plate 27, the floating through hole 11a of arm pieces 11 is run through in the other end.In addition, floating spring 42 is between floating spiral shell
Between the other end and arm pieces 11 of bolt 41.Using floating spring 42, court makes one side 5a phase of the 1st brake-shoe 23 with brake disc 5
The direction of abutting exerts a force to main body 21.
Also, position in support plate 27, opposite with the inner wall 26a of framework 26 is formed with through hole 27b.Perforation
The brake axle 24a of the 2nd brake-shoe 24 runs through in the 27b of hole.
Moreover, the another side of in support plate 27, opposite with the opposite one side of the another side 5b of same brake disc 5 side
It is upper to be configured with electromagnetic drive part 22.
[electromagnetic drive part]
Electromagnetic drive part 22 has electromagnetism core 31, the movable link 32 opposite with electromagnetism core, electromagnetic coil 37, multiple forces
Spring 38.Movable link 32 is formed as in generally circular tabular.Be formed in movable link 32 2 insertion hole 32a,
32a.In addition, being equipped with the 2nd brake-shoe 24 in movable link 32.
2nd brake-shoe 24 has brake axle 24a and brake(-holder) block 24b.Brake axle 24 is installed on the radius side of movable link 32
To approximate centre, be through to the other end from axial one end of movable link 32.In addition, axial in brake axle 24a
One end runs through the through hole 27b of support plate 27.Moreover, the axial one end in brake axle 24a is equipped with brake(-holder) block 24b.
Brake(-holder) block 24b is opposite with the another side 5b of brake disc 5.In addition, brake(-holder) block 24b is configured as brake disc 5 being clipped in
It is intermediate and opposite with the brake(-holder) block 23b of the 1st brake-shoe 23.Then, when traction machine 100 stops, the system of the 1st brake-shoe 23 is utilized
The brake(-holder) block 24b of movable plate 23b and the 2nd brake-shoe 24, so that brake disc 5 is clamped, to the brake disc 5 and traction in traction machine 100
Wheel 4 is braked.
Axial the other end of brake axle 24a, i.e. from the opposite face opposite with electromagnetism core 31 in movable link 32
The end outstanding 32b is prominent towards electromagnetism core 31.In addition, the other end insertion of brake axle 24a is set in electromagnetism core 31
It is pivotally supported hole 31c.
Electromagnetism core 31 is shaped generally as cylindric.An axial end face for electromagnetism core 31 becomes and movable link 32
Opposite face 32b opposite magnetic pole strength 31a.The catch-releasing mechanism 51A and electromagnetism core 31 of aftermentioned electromagnetic braking release device 50A
Axial other end 31b abut against.In addition, being configured with electromagnetic coil 37 and force application spring 38 in electromagnetism core 31.
Electromagnetic coil 37 is wound with defined circle number.Not shown control unit is applied in electromagnetic coil 37 to be controlled
Voltage.By applying voltage in electromagnetic coil 37, to constitute electromagnet by electromagnetism core 31 and electromagnetic coil 37.In
It is that the magnetic pole strength 31a of electromagnetism core 31 becomes the adsorption plane adsorbed to movable link 32.
Force application spring 38 is mounted on the recess portion in electromagnetism core 31.The one end and movable link 32 of force application spring 31
Opposite face 32b abut against.Then, force application spring 38 using defined active force to movable link 32 towards making it away from electromagnet core
The direction of body 31 exerts a force.
Hole 31c is pivotally supported in addition, being formed in electromagnetism core 31.Hole 31c is pivotally supported to be formed in electromagnetism core 31
The approximate centre of the radial direction of magnetic pole strength 31a.Be pivotally supported hole 31c be through to from axial one end of electromagnetism core 31 it is another
End.The brake axle 24a of 2nd brake-shoe 24 is slidably inserted into this and is pivotally supported hole 31c.Movable link 32 is passed through as a result,
It is supported by the 2nd brake-shoe 24 so that it is close to electromagnetism core 31 and can separate.
In addition, being equipped with connecting elements 35 in electromagnetism core 31.Magnetic pole strength 31a court of the connecting elements 35 from electromagnetism core 31
Movable link 32 is prominent.Connecting elements 35 runs through the insertion hole 32a being set in movable link 32, is fixed on the support plate of main body 21
27.Electromagnetism core 31 is moved jointly via connecting elements 35 and main body 21 as a result,.
As shown in figure 3, being detachably equipped with 2 electromagnetic systems in the traction machine 100 with above-mentioned structure
Dynamic release device 50A, 50B.
1-3. electromagnetic braking release device
Then, referring to Fig. 3 and Fig. 4, electromagnetic braking release device 50A, 50B is illustrated.
As shown in figure 3, electromagnetic braking release device 50A, 50B makes the 1st brake-shoe of electro-magnetic braking device 10A, 10B, 10C, 10D
23 brake(-holder) block 23b and the brake(-holder) block 24b of the 2nd brake-shoe 24 forcibly separate (release) from brake disc 5.In addition, the 1st electromagnetic system
Dynamic release device 50A makes the 1st electro-magnetic braking device 10A and the 2nd electro-magnetic braking device 10B while discharging, the 2nd electromagnetic braking release
Device 50B makes the 3rd electro-magnetic braking device and the 4th electro-magnetic braking device 10D while discharging.
In addition, since 2 electromagnetic braking release devices 50A, 50B are respectively provided with identical structure, herein only to the 1st electromagnetic system
Dynamic release device 50A is illustrated.
1st electromagnetic braking release device 50A includes the 1st catch-releasing mechanism 51A, the 2nd catch-releasing mechanism 51B, transmitting
Mechanism 52 and operating stick 56.1st catch-releasing mechanism 51A is installed on the 1st electro-magnetic braking device 10A, the 2nd catch-releasing mechanism
51B is installed on the 2nd electro-magnetic braking device 10B.Operating stick 56 is detachably installed on the 1st catch-releasing mechanism 51A
In addition, the 1st catch-releasing mechanism 51C of the 2nd electromagnetic braking release device 50B is installed on the 3rd electro-magnetic braking device
10C, the 2nd catch-releasing mechanism 51D are installed on the 4th electro-magnetic braking device 10D.
[catch-releasing mechanism]
Then, referring to Fig. 4, catch-releasing mechanism 51A, 51B are illustrated.In addition, due to the 1st catch-releasing mechanism 51A and
2nd catch-releasing mechanism 51B is respectively provided with identical structure, is only illustrated herein to the 1st catch-releasing mechanism 51A.
As shown in figure 4, the 1st catch-releasing mechanism 51A includes frame 61, ball-screw nut 62, thread spindle 63, thrust axis
Hold 64.In addition, constituting ball screw framework by ball-screw nut 62 and thread spindle 63.
Frame 61 is shaped generally as cylindric.Attachment recess 61a, flange part 61b, through hole are formed in frame 61
61c.In addition, the axial one end in frame 61 is equipped with thrust bearing 64.Frame 61 is via thrust bearing 64 and electromagnetism core
31 other end abuts against.Thrust bearing 64 supports frame 61 and ball-screw nut 62, so that they can be with
Thread spindle 63 pivots about.
Attachment recess 61a is formed in axial the other end of frame 61.Attachment recess 61a is from the axial of frame 61
Other end is along axial direction with the recess portion of defined length recesses.Ball-screw nut 62 is fixed in attachment recess 61a.
Internal thread threaded hole 62a is formed to be set in ball-screw nut 62.It is configured in the internal screw thread of threaded hole 62a
There is ball (not shown).Threaded hole 62a is through to the other end from the axial one end of ball-screw nut 62.
The outer peripheral surface of flange part 61b from frame 61 is prominent towards the outside of radial direction.Connecting hole is equipped in flange part 61b
61d.Connection protrusion 59 set on the connecting elements 58 of aftermentioned operating stick 56 is inserted into connecting hole 61d.In addition, aftermentioned transmission mechanism
52 the 1st sprocket wheel 53A is fastened onto the axial end face in flange part 61b via fixing bolt 71.
Through hole 61c is through to attachment recess 61a from the axial one end of frame 61.In addition, through hole 61 and fixation
The threaded hole 62a of recess portion 61a and ball-screw nut 62 connection.
Thread spindle 63 is formed as rodlike.Thread spindle 63 is inserted into the threaded hole 62a of thread lead screw nut 62 and passing through for frame 61
Through-hole 61c.Moreover, thread spindle 63 is prominent towards axial one end from the thrust bearing 64 for being set to frame 61.
The thread groove 63a being made of external screw thread is formed on the outer peripheral surface of thread spindle 63.Thread groove 63a via ball with
Internal screw thread in the threaded hole 62a of ball-screw nut 62 fastens.In addition, the axial one end of thread spindle 63 is equipped with
Connect bolt 63b.Axial the other end of connection bolt 63b and brake axle 24a is screwed.Brake axle 24a and screw thread as a result,
Axis 63 connects.
Then, if pivoting about frame 61 and ball-screw nut 62 with thread spindle 63, threaded hole is utilized
The thread groove 63a of 62a and thread spindle 63, so that rotary motion is transformed to move along a straight line, thread spindle 63 is move alonged the axial direction.
[transmission mechanism]
Then, transmission mechanism 52 is illustrated.
As shown in figure 3, the example that there is the 1st sprocket wheel 53A of an example for indicating the 1st rotary body, indicate the 2nd rotary body
The 2nd sprocket wheel 53B, indicate moving body an example chain 54.As shown in figure 4, the 1st sprocket wheel 53A is via fixing bolt 71
It is fixed on the frame 61 of the 1st catch-releasing mechanism 51A.
In addition, being equipped with transmitting side connecting hole 53a in the 1st sprocket wheel 53A.Company in the connecting elements 58 of operating stick 56
Meet the insertion transmitting of protrusion 59 side connecting hole 53a.Then, the frame 61 and ball of the 1st sprocket wheel 53A and the 1st catch-releasing mechanism 51A
Feed screw nut 62 rotates jointly.
In addition, as shown in figure 3, the 2nd sprocket wheel 53B is fixed on the frame (not shown) of the 2nd catch-releasing mechanism 51B.
Two ends of chain 54 are detachably linked using chain bolt 55.Then, by utilizing chain
Bolts 55 link two ends, so that chain 54 is formed as endless shape.In addition, using chain bolt 55, chain 54
Being configured to circumferential lengths can change.
Chain 54 is wound in the 1st sprocket wheel 53A and the 2nd sprocket wheel 53B.Moreover, chain 54 is in the 1st sprocket wheel 53 and the 2nd sprocket wheel 53B
Between loopy moving.Therefore, if the 1st sprocket wheel 53A rotates, torque is transferred to the 2nd sprocket wheel 53B via chain 54, thus the 2nd
Sprocket wheel 53B is also rotated.
[operating stick]
Then, referring to Fig. 4~Fig. 5 B, operating stick 56 is illustrated.
Fig. 5 A and Fig. 5 B are the figures for indicating operating stick 56.
As shown in Fig. 5 A and Fig. 5 B, operating stick 56 has grip part 57, connecting elements 58.Connecting elements 58 is shaped generally as
Circular tabular.Generally circular opening portion 58a is formed in connecting elements 58.As shown in figure 4, opening portion 58a's opens
Mouth diameter is set as roughly equal with the diameter of the frame 61 of the 1st catch-releasing mechanism 51A.Moreover, 61 insertion opening portion of frame
58a。
Also, as shown in Fig. 5 A and Fig. 5,2 connection protrusions 59 are equipped in the one side of connecting elements 58.As shown in figure 4,
Connect the transmitting side connecting hole 53a that protrusion 59 is inserted into the connecting hole 61d and the 1st sprocket wheel 53A of frame 61.As a result, operating stick 56 with
Frame 61 and the 1st sprocket wheel 53A connection.
In addition, though being inserted into connecting hole to by the way that protrusion 59 will be connected in the electromagnetic braking release device 50A of this example
61d is to which the example that operating stick 56 is connect with frame 61 to be illustrated, and but it is not limited to this.As operating stick 56 and frame
61 connection method, such as be also possible to frame 61 while the opening shape of opening portion 58a is formed as hexagon shape
Being formed as hexa-prism, operating stick 56 being connected to frame 61 by fastening opening portion 58a and frame 61.Alternatively,
Also fixing bolt can be used, operating stick 56 is connected to frame 61, other various connection methods can be applicable in.
In addition, being equipped with grip part 57 in a part of the peripheral part of connecting elements 58.Grip part 57 is formed as operator
It can hold.Grip part 57 by operator by being operated, to transmit torque to connecting elements 58 and frame 61.
In addition, in release gear for electromagnetic brake 50A in this example, although being installed on the 1st braking to by operating stick 56
The example of relieving mechanism 51A is illustrated, but is not limited to that, operating stick 56 can also be installed on to the 2nd braking and released
Laying mechanism 51B.
2. action example
The action example of 2-1. electro-magnetic braking device
It is illustrated referring next to action example of the Fig. 4 and Fig. 7 to the electro-magnetic braking device 10 with above structure.
Fig. 7 is the figure for indicating to release the state of electro-magnetic braking device.
Firstly, being illustrated to the braking maneuver of electro-magnetic braking device 10.
As shown in figure 4, voltage is not applied in electromagnetic coil 37, thus electromagnetism when traction machine 100 (referring to Fig. 2) stops
The magnetism of coil 37 and electromagnetism core 31 is eliminated.In addition, using force application spring 38 to movable link 32 towards far from electromagnetism core
31 direction force.Therefore, gap is formed between the opposite face 32b of movable link 32 and the magnetic pole strength 31a of electromagnetism core 31.
Then, the brake(-holder) block 24b for being installed on the 2nd brake-shoe 24 of movable link 32 is pushed into the another side of brake disc 5
5b.By the way that the brake(-holder) block 24b of the 2nd brake-shoe 24 to be urged to the another side 5b of brake disc 5, thus in movable link 32 towards remote
Direction from electromagnetism core 31, i.e. towards the mobile stopping of axial side.
Therefore, it is exerted a force to electromagnetism core 31 towards the direction far from movable link 32 using the reaction force of force application spring 38,
Electromagnetism core 31 is mobile towards the direction of the another side 5b far from brake disc 5.Then, connect via connecting elements 35 and electromagnetism core 31
The main body 21 of knot is also jointly mobile towards the axial other side of rotary shaft 8 with electromagnetism core 31.The be set in main body 21 as a result,
The brake(-holder) block 23b of 1 brake-shoe 23 is pushed into the one side 5a of brake disc 5.As a result, brake disc 5 is by the 1st brake-shoe 23 and
The clamping of 2 brake-shoes 24, brake disc 5 and traction sheave 4 are braked.
When traction sheave 100 operates, defined voltage is applied in electromagnetic coil 37, electromagnetism core 31 is excited.By
This, the electromagnetic attraction that will be above the active force of force application spring 38 is supplied to electromagnetism core 31.Therefore, the resistance of movable link 32 is applied
The active force of power spring 38 and the magnetic pole strength 31a for being attracted to electromagnetism core 31.Then, by making movable link 32 towards close electricity
The direction of magnetic core array 31 is mobile, thus another side 5b of the brake(-holder) block 24b of the 2nd brake-shoe 24 far from brake disc 5.
In addition, if movable link 32 moves defined length towards close to the direction of electromagnetism core 31, movable link 32
Opposite face 32b is abutted against with banking pin 15.The movement towards the direction close to electromagnetism core 31 in movable link 32 stops as a result,
Only.At this point, being formed with gap between the brake(-holder) block 24b of the 2nd brake-shoe 24 and the another side 5b of brake disc 5.
In addition, being also formed with gap between the opposite face 32b of movable link 32 and the magnetic pole strength 31a of electromagnetism core 31.
In addition, continuous action has the electromagnetic attraction of electromagnetism core 31 and electromagnetic coil 37 in movable link 32.However, utilizing limitation
The movement of pin 15, movable link 32 is limited.Therefore, the electromagnetic attraction masterpiece generated in electromagnetism core 31 and electromagnetic coil 37
It is reaction force acts in electromagnetism core 31, electromagnetism core 31 is mobile towards the direction close to movable link 32, i.e. axial side.
In addition, the main body 21 being connected via connecting elements 35 and electromagnetism core 31 is also with electromagnetism core 31 jointly towards an axial sidesway
It is dynamic.
As a result, as shown in fig. 7, the magnetic pole strength 31a of electromagnetism core 31 is in contact with the opposite face 32b of movable link 32.This
Outside, the brake(-holder) block 23b of the 1st brake-shoe 23 in main body 21 is far from the one side 5a of brake disc 5.At this point, the 1st brake-shoe 23
Gap is formed between brake(-holder) block 23b and the another side 5a of brake disc 5.By the brake(-holder) block 23b and the 2nd for making the 1st brake-shoe 23
The brake(-holder) block 24b of brake-shoe 24 is far from brake disc 5, to release the brake disc 5 and traction carried out by electro-magnetic braking device 10
The braking of wheel 4.The movement of electro-magnetic braking device 10 is completed as a result,.
In addition, the movement for being back to on-position as shown in Figure 4 from state as shown in Figure 7 is, to the logical of coil 37
Electricity stops, to eliminate the magnetism of electromagnetism core 31 and electromagnetic coil 37.Moreover, because opposite with above-mentioned movement by carrying out
Movement is to be achieved, so the description thereof will be omitted.
The action example of 2-2. electromagnetic braking release device
Then, referring to Fig. 4, Fig. 6, Fig. 7, operation electromagnetic braking release device 50A, 50B is forcibly filled electromagnetic braking
The action example for setting 10A, 10B release is illustrated.
Fig. 6 is the figure for indicating the state operated to electromagnetic braking release device 50A, 50B.
Firstly, as shown in Figures 3 and 4, the thread spindle 63 of the 1st catch-releasing mechanism 51A is connected to the 1st electromagnetic braking dress
Set the brake axle 24a of the 2nd brake-shoe in 10A.In addition, thread spindle 63 runs through frame 61 and threaded hole 62a, with ball-screw spiral shell
Mother 62 fastens.In addition, the 1st sprocket wheel 53A of transmission mechanism 52 is fixed on frame 61 in advance.1st catch-releasing mechanism as a result,
51A is installed in the 1st electro-magnetic braking device 10A.At this point, being fixed on the another of the thrust bearing 64 of frame 61 and electromagnetism core 31
End face 31b is opposite.
In addition, the 2nd catch-releasing mechanism 51B is installed on the 2nd electro-magnetic braking device 10B.In addition, due to installation procedure with
1st catch-releasing mechanism 51A is identical, so the description thereof will be omitted.
Then, by chain 54 on the 1st sprocket wheel 53A and the 2nd sprocket wheel 53B.At this point, the connection of chain bolt 55 is solved
It removes, two ends of chain 54 are not concatenated.It therefore, can be more easily by chain 54 wound on the 1st sprocket wheel 53A and the 2nd chain
It takes turns on 53B.Then, two ends of chain 54 are linked using chain bolt 55.Chain 54 is formed as no reason as a result,
Shape.
In addition, being adjusted using circumferential lengths of the chain bolt 55 to chain 54, so that the relaxation of chain 54 be made to eliminate.
Thereby, it is possible to efficiently by the torque transfer of the 1st sprocket wheel 53A to the 2nd sprocket wheel 53B.
Then, operating stick 56 is installed on the 1st catch-releasing mechanism 51A.That is, as shown in figure 4, by the axial direction of frame 61
The other end insertion connecting elements 58 opening portion 58a while, the connection protrusion 59 of connecting elements 58 is inserted into frame 61
Connecting hole 61d and the 1st sprocket wheel 53A transmitting side connecting hole 53a.Operating stick 56 is installed in the 1st braking machine for releasing as a result,
Structure 51A.
Then, as shown in fig. 6, operator rotates the grip part 57 of operating stick 56.Connect as a result, with operating stick 56
The frame 61 and ball-screw nut 62 of 1 catch-releasing mechanism 51A is pivoted about with thread spindle 63.By making frame 61
It is rotated, so that the 1st sprocket wheel 53A for being fixed on frame 61 is also rotated.Then, the torque of the 1st sprocket wheel 53A is via chain
54 are transferred to the 2nd sprocket wheel 53B, so that the 2nd sprocket wheel 53B is also rotated.
By rotating the 2nd sprocket wheel 53B, to be fixed with the frame of the 2nd catch-releasing mechanism 51B of the 2nd sprocket wheel 53B
Frame and ball-screw nut are also rotated.That is, having carried out rotation behaviour to the 1st catch-releasing mechanism 51A using operating stick 56
As when the torque that generates, be passed to the 2nd catch-releasing mechanism 51B using transmission mechanism 52.In this way, according to the electromagnetic system of this example
Dynamic release device 50A can be such that two catch-releasing mechanisms 51A, 51B are acted simultaneously by once-through operation.
As shown in fig. 7, if frame 61 and ball-screw nut 62 are rotated, thrust bearing 64 and electromagnetism core 31
Other end 31b is abutted against.Therefore, in frame 61, limited towards the movement of electromagnetism core 31.By making ball-screw nut
62 are rotated, using the engaging of threaded hole 62a and the thread groove 63a of thread spindle 63, so that rotary motion is transformed to straight line
Movement, thread spindle 63 are pulled to the axial other side.
By the way that thread spindle 63 to be pulled to the axial other side, the 2nd brake-shoe 24 connecting with thread spindle 63 is also pulled into axis
To the other side.Then, another side 5b of the brake(-holder) block 24b of the 2nd brake-shoe 24 far from brake disc 5.In addition, being fixed with the 2nd system
The movable link 32 of dynamic hoof 24 also resists the active force of force application spring 38 and the magnetic pole strength 31a close to electromagnetism core 31.
In addition, if movable link 32 moves defined length towards close to the direction of electromagnetism core 31, movable link 32
Opposite face 32b is abutted against with banking pin 15.As a result, in movable link 32, the movement towards the direction close to electromagnetism core 31 stops
Only.
If also, operating stick 56 is operated, rotate frame 61 and ball-screw nut 62, then thread spindle 63
And brake axle 24a is further pulled to the axial other side.In addition, since thrust bearing 64 is between frame 61 and electromagnetism core
Between 31, so frame 61 and ball-screw nut 62 can be made swimmingly to be rotated.
As noted previously, as limiting movement in movable link 32, towards the direction close to electromagnetism core 31, therefore to system
Reaction force when moving axis 24a is stretched acts on electromagnetism core 31 via frame 61 and thrust bearing 64.Therefore, electromagnetism
Core 31 is moved towards close to the direction of movable link 32.Then, the main body 21 linked via connecting elements 35 and electromagnetism core 31
Also jointly mobile towards axial side with electromagnetism core 31.
As a result, as shown in fig. 7, the magnetic pole strength 31a of electromagnetism core 31 is in contact with the opposite face 32b of movable link 32.This
Outside, the brake(-holder) block 23b of the 1st brake-shoe 23 in main body 21 is separated with the one side 5a of brake disc.By the 1st electro-magnetic braking device
The braking of brake disc 5 and traction sheave 4 that 10A is carried out is released from, and discharges the 1st electro-magnetic braking device 10A.
In addition, due to the frame and ball-screw of the 2nd catch-releasing mechanism 51B for being installed on the 2nd electromagnetic release device 10B
Nut also rotates in the same manner as the 1st catch-releasing mechanism 51A, therefore the 2nd electro-magnetic braking device 10B is also filled with the 1st electromagnetic braking
10A is set similarly to be released.In this way, can simultaneously will by once-through operation according to the electromagnetic braking release device 50A of this example
Two electro-magnetic braking devices 10A, 10B are discharged.
Further, since the movement of the 2nd electromagnetic braking release device 50B is also with above-mentioned 1st electromagnetic braking release device 50A's
It is identical, so the description thereof will be omitted.Used as a result, electromagnetic braking release device 50A, 50B electro-magnetic braking device 10A, 10B,
The release movement of 10C, 10D are completed.
In addition, electromagnetism core 31 is separated with movable link 32, brake disc if unclamping the rotation process for utilizing operating stick 56
5 clamped by the 1st brake-shoe 23 and the 2nd brake-shoe 24, so that brake disc 5 and traction sheave 4 are braked.
In addition, not departing from Patent right requirement the present invention is not limited to embodiment above-mentioned and being shown in the accompanying drawings
In the range of the purport of the invention of middle record, various modifications implementation can be carried out.Although in above embodiment example, to by traction
Computer room 160 of the configuration of machine 100 at the top for being set to elevator 110 is illustrated, and but it is not limited to this.It, can also as elevator
To be suitable for for example in elevator not no computer room, so-called machine-roomless lift.
Although in addition, to above-mentioned electromagnetic braking release device 50A using transmission mechanism 52 to 2 catch-releasing mechanism 51A,
The example that 51B is operated simultaneously is illustrated, and but it is not limited to this.For example, the chain 54 of transmission mechanism 52 is also wound
It is released in the catch-releasing mechanism 51C for being installed on the 3rd electro-magnetic braking device 10C and the braking for being installed on the 4th electro-magnetic braking device 10D
On the sprocket wheel of laying mechanism 51D.Thereby, it is possible to by once-through operation simultaneously make 4 catch-releasing mechanisms 51A, 51B, 51C, 51D into
Action is made.
In this way, the number of the catch-releasing mechanism using transmission mechanism 52 by the torque transfer of operating stick 56 extremely is not limited to 2
It is a, 3 or more catch-releasing mechanisms can also be transferred to.
As the transmission mechanism for transmitting the torque of operating stick 56, it is not limited to chain 54 and sprocket wheel 53A, 53B.As
Transmission mechanism, can also be applicable in the transmission mechanism being for example made of the conveyer belt as moving body and the pulley as rotary body,
Other various transmission mechanisms such as gear.
In addition, according to the transmission mechanism being made of chain and sprocket wheel, compared to the transmitting machine being made of conveyer belt and pulley
Structure, moving body, that is, chain are more able to suppress extension compared to conveyer belt.Also, in the transmission mechanism being made of conveyer belt and pulley
In, sliding may be generated between rotary body and moving body, but according to the transmission mechanism being made of chain and sprocket wheel, then can
Inhibit the sliding between rotary body and moving body, can reliably transmit torque.
In addition, according to the transmission mechanism being made of chain and sprocket wheel, compared to the transmission mechanism for having used gear, can
Extend by torque transmit apart from while also it is possible to realize the reductions of component number.
In addition, in this specification, although words, these words such as " parallel " and " straight to hand over " has been used not to mean only that
Stringent " parallel " and " straight to hand over " can also be in including " parallel " and " straight to hand over " and can play the function
The state of " substantially parallel ", " substantially straight friendship " in range.
Label declaration
1 elevator, 2 plant bottom cases, 3 driving motors, 4 traction sheaves, 5 brake discs, 5a one side, 5b another side, 7 are consolidated
Determine component, 8 rotary shafts, 9A, 9B, 9C, 9D supporting part, 10A, 10B, 10C, 10D electro-magnetic braking device, 11 arm pieces, 21 masters
Body, 22 electromagnetic drive parts, 23 the 1st brake-shoes, 23a brake axle, 23b brake(-holder) block, 24 the 2nd brake-shoes, 24a brake axle,
24b brake(-holder) block, 31 electromagnetism cores, 31a magnetic pole strength, the other end 31b, 31c are pivotally supported hole, 32 movable links, 32b
Opposite face, 35 connecting elements, 37 electromagnetic coils, 38 traction sheaves, 50A, 50B electromagnetic braking release device, 51A, 51C the 1st
Catch-releasing mechanism, the 2nd catch-releasing mechanism of 51B, 51D, 52 transmission mechanisms, the 1st sprocket wheel of 53A (the 1st rotary body), 53B
2nd sprocket wheel (the 2nd rotary body), 54 chains (moving body), 55 chain bolts, 56 operating sticks, 57 grip parts, 58 connection structures
Part, 61 frames, 61a attachment recess, 61b flange part, 62 ball-screw nuts, 62a threaded hole, 63 thread spindles, 63a
Thread groove, 63b connection bolt, 64 thrust bearings, 100 traction machines, 120 carriages, 110 elevators, 130 ropes, 140
Counterweight, 150 deflector sheaves, 160 computer rooms.