CN105905828A - Electromagnetic brake device and elevator - Google Patents
Electromagnetic brake device and elevator Download PDFInfo
- Publication number
- CN105905828A CN105905828A CN201610097691.0A CN201610097691A CN105905828A CN 105905828 A CN105905828 A CN 105905828A CN 201610097691 A CN201610097691 A CN 201610097691A CN 105905828 A CN105905828 A CN 105905828A
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- Prior art keywords
- moving element
- stator
- electro
- braking device
- magnetic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
- Electromagnets (AREA)
Abstract
The present invention provides an electromagnetic brake device capable of improving the brake responsiveness based on a simple structure. By means of a second movable element (102) on the opposite side of a first movable element (101) and a second force applying part (15), the second movable member (102) is separated from a stator (8) before or during the separation of the first movable element (101) and the stator (8).
Description
Technical field
The present invention relates to electro-magnetic braking device and utilize the elevator of this electro-magnetic braking device.
Background technology
It is said that in general, for the hoist engine making the car of elevator lift, control device and detect car
The speed regulator of hypervelocity is arranged in the machine room that building top is provided with.But, shorter at lifting travel,
In the elevator that the rising or falling speed of car is slower, the machine-roomless lift of machine room is not had the most just to be popularized.
In the case of machine-roomless lift, set being configured at the hoist engine of machine room, control device etc. in the past
For being arranged in elevator.Herein, the limited space in elevator, the shape of hoist engine, the side of setting
Method has various.Foot or topmost hoist engine at elevator is such as had to overlap with car cross section
Elevator, or hoist engine and the most stacked elevator in car cross section.Generally, car and elevator
Gap only have hundreds of about mm, therefore, in order to arrange hoist engine in this gap, need flat pattern
Hoist engine, use so-called thin type hoister.
About above-mentioned thin type hoister, the widely used direct driving type electromagnetic system that liner is pressed towards brake drum
Dynamic device.Such as pressing the electromagnetic braking that brake drum outer peripheral face is braked in the hoist engine of elevator
Device, has the electro-magnetic braking device that patent documentation 1 is recorded.Additionally, press as in elevator hoist
The electro-magnetic braking device that the inner surface of brake drum is braked, has the electromagnetic braking dress that patent documentation 2 is recorded
Put.Additionally, as the device relevant to disk type electromagnetic brake unit, have the electromagnetism that patent documentation 3 is recorded
Brake unit.
In the electromagnetic braking of patent documentation 1,2,3, when brake hard, the contact of circuit is disconnected
To cut off the electricity supply, thus reduce electric current, thus take-off the brake, it is thus achieved that brake force.Brake force has " system
Power=tripping spring power-electromagnetic force " relation, therefore, in order to braking time make brake force fully pass
It is delivered to brake drum, needs to be substantially reduced electromagnetic force.But, owing to cutting off the electricity supply, the magnetic flux of magnetic pole strength
Change and produce vortex flow, due to the impact of this vortex flow, when the minimizing of electromagnetic force needs longer
Between, therefore, the response of the transmission of brake force declines.
Accordingly, as the electro-magnetic braking device for the purpose of improving response, patent documentation 4 is had to record
Device.Have the situation including action auxiliary unit described in patent documentation 4, this action auxiliary unit time
Between response i.e. cut off the electricity supply after receiving braking instruction after ratio braking electromagnet fast, this action is auxiliary
Unit is helped to reduce the electromagnetic force of braking electromagnet in the braking maneuver of braking electromagnet before starting.
Herein, there are 3 kinds of modes described in patent documentation 4 as action auxiliary unit.The action of the 1st mode
Auxiliary unit by being arranged in fixed iron core, for movable core is applied counteracting force so that movable
The piezoelectric element moved towards the direction separated with fixed iron core unshakable in one's determination is constituted, and makes utilizing this piezoelectric element
Before braking electromagnet starts braking maneuver, to expand fixed iron core and the movable core of braking electromagnet
Between the mode in space carry out action.The action auxiliary unit of the 2nd mode is for applying movable core
Counteracting force is so that movable core moves towards the direction separated with fixed iron core, by than braking electromagnet
The small electrical magnet wanting little is constituted, and makes braking electromagnet start braking maneuver utilizing this small electrical magnet
Before, move in the way of the space between fixed iron core and the movable core expanding braking electromagnet
Make.The action auxiliary unit of the 3rd mode is made up of the small electrical magnet less than braking electromagnet, utilizes
This small electrical magnet, before braking electromagnet starts braking maneuver, utilizes and is arranged at small electrical magnet
Movable core by braking electromagnet fixed iron core is connected with movable core, going forward side by side take action work so that
The fixed iron core of braking electromagnet and the magnetic flux of movable core bypass the movable core to small electrical magnet.
Prior art literature
Patent documentation
Patent documentation 1: International Publication WO2011/004468 publication
Patent documentation 2: Japanese Patent Laid-Open 2002-284486 publication
Patent documentation 3: International Publication WO2010/143298 publication
Patent documentation 4: Japanese Patent Laid-Open 2008-286333 publication
Summary of the invention
Invent technical problem to be solved
But, the action auxiliary unit that patent documentation 4 is recorded is made up of piezoelectric element or small electrical magnet,
Therefore, it is required to apply the voltage for drive actions auxiliary unit separately, has what structure complicated
Problem.Additionally, in the case of utilizing small electrical magnet, need also exist in existing electromagnetic braking
The problem that the outside of the structural element of device is spaced from and arranges this small electrical magnet separately.
It is an object of the invention to provide the electricity of a kind of response when utilizing simple structure to improve braking
Magnetic detents.
Solve the technical scheme of technical problem
In order to achieve the above object, the electro-magnetic braking device of the present invention such as includes braked body, towards institute
State the Brake pad of braked body pressing and make that described Brake pad separates with described braked body by
The electromagnet that coil and stator are constituted, it is characterised in that have the first moving element, the first force section,
Second moving element and the second force section, described first moving element links with described Brake pad and will
Described Brake pad presses towards described braked body, and described first force section is arranged in described first movable
Make, between element with described stator and by applying, the power that described first moving element separates with described stator
Apply the power pressed by described Brake pad, described second moving element configuration towards described braked body
In the side contrary with described first moving element of described stator and do not have described Brake pad court
The effect of described braked body pressing, described second force section is arranged in described second moving element and institute
State between stator and apply the power making described second moving element separate with described stator, starting in braking
Time, while described first moving element separates with described stator or before, the described second movable unit
Part separates with described stator.
Additionally, the elevator of the present invention such as have include described electro-magnetic braking device hoist engine and by
Described hoist engine carries out the car lifted.
Invention effect
According to the present invention, utilize second moving element and the of the opposition side being arranged on the first moving element
Two force sections, when braking starts, while the first moving element separates with stator or before, the
Two moving elements separate with stator, accordingly, it is capable to increase the magnetic resistance in the magnetism loop formed when braking,
Reduce the time constant of magnetic flux flow through in magnetism loop, and electromagnetic force can be shortened to become sufficiently small
Till time, accordingly, it is capable to improve braking time response.Additionally, the can be arranged on by adding
The second moving element and this simple structure of the second force section of the opposition side of one moving element realize
State effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of the electro-magnetic braking device representing the embodiment of the present invention 1.
Fig. 2 is the section view of the magnetic circuit in the action of the electro-magnetic braking device that embodiment 1 is described and magnetism loop
Figure.
Fig. 3 is the relation (magnetic field analysis result) representing electromagnetic force and time in embodiment 1 and conventional example
Figure.
Fig. 4 is action and the magnetic circuit in magnetism loop of the electro-magnetic braking device that the embodiment of the present invention 2 is described
Sectional view.
Fig. 5 is the sectional view of the electro-magnetic braking device representing the embodiment of the present invention 3.
Fig. 6 is the sectional view of the action of the electro-magnetic braking device that embodiment 3 is described.
Fig. 7 is the sectional view of the action of the electro-magnetic braking device that embodiment 3 is described.
Fig. 8 is the axonometric chart illustrating to apply an example of the elevator of the present invention.
Fig. 9 is top view and the sectional view of existing electro-magnetic braking device.
Figure 10 is the sectional view of the action that existing electro-magnetic braking device is described.
Figure 11 is the figure of the magnetic circuit in the action of the electro-magnetic braking device that conventional example is described and magnetism loop.
Detailed description of the invention
Embodiments of the invention are described with reference to the accompanying drawings.It addition, in each figure and each embodiment, right
Same or similar structural element marks identical label and omits the description.
[embodiment 1]
Fig. 8 is the axonometric chart illustrating to apply an example of the elevator of the present invention.In Fig. 8, with machine room
Illustrate as a example by elevator.Elevator has and includes the hoist engine 3 of electro-magnetic braking device 4 and by hoist engine 3
Carry out the car 1 lifted.Car 1 rises via many hawsers 5 on the pulley 6 being wound in hoist engine 3
Fall action.Pulley 6 is directly connected to the axle of not shown driving means, driving means drive.As
The brake drum 7 of braked body is directly connected to pulley 6, by utilizing electro-magnetic braking device 4 to brake drum 7
It is braked, thus controls the action of car 1.2 is to pouring weight.
First, before the electro-magnetic braking device of the embodiment of the present invention 1 is illustrated, illustrate existing
The structure of electro-magnetic braking device.Fig. 9 is top view and the sectional view of existing electro-magnetic braking device, Fig. 9
A () is top view, Fig. 9 (b) is the line A-A sectional view of Fig. 9 (a).Utilize this Fig. 9 so that nothing to be described
The structure of excitation actuating type brake unit.
In Fig. 9, electro-magnetic braking device 4 includes stator 8 and moving element 9, the coil being made up of magnetic
10, spring 11, have adjustment the clearance adjustment mechanism of bolt 12a, 12b, brake shoe 13 and braking
Pad 14.Spring 11 is installed with the state compressed from drift in advance.Additionally, by coil 10
And stator 8 constitutes electromagnet.
Figure 10 is the sectional view of the action that existing electro-magnetic braking device is described.
Figure 10 (a) represents the state that hoist engine 3 is braked by electro-magnetic braking device 4.In on-position
Under, during braking, via moving element 9, Brake pad 14 being pressed towards brake drum 7 by pressure of spring 11,
Thus pulley 6 is braked.
State when Figure 10 (b) represents non-brake.When non-brake, by coil 10 is applied electric current,
Thus stator 8 is magnetized.By making stator 8 magnetize, thus moving element 9 is drawn to stator 8 side,
Brake pad 14 separates from brake drum 7, is released by pressure.
As it appears from the above, braking maneuver is mechanically performed by spring 11, the solution of brake force is divided by electrically
Mode is carried out.So, in the case of causing stopping power supply because power failure waits, it is achieved car 1 stops
Automatic anti-fault action.
Fig. 1 is the sectional view of the electro-magnetic braking device representing the embodiment of the present invention 1.The electromagnetic system of embodiment 1
The basic structure of dynamic device 4 is identical with existing non-excitation actuating type brake unit, but as it is shown in figure 1,
There are two moving elements 101,102 to clamp stator 8.Will be located between brake drum 7 and stator 8 can
Dynamic element is set to the first moving element 101, stator 8 will be clamped and be positioned at opposite side (stator 8 with first
Moving element 101 opposite side) moving element be set to the second moving element 102.In the first movable unit
Have on part 101 on the direction separated with stator 8 and apply the spring 11 of power along braking direction.That is,
The electro-magnetic braking device 4 of embodiment 1 includes the brake drum 7 as braked body, towards braked body pressing
Brake pad 14 and make the electricity being made up of coil 10 and stator 8 that Brake pad 14 separates with braked body
Magnet, and, have link with Brake pad 14 and pressed towards braked body by Brake pad 14
One moving element 101 and be arranged between the first moving element 101 and stator 8 and make first by applying
The power that the power that moving element 101 separates with stator 8 applies to press Brake pad 14 towards braked body
First force section i.e. spring 11.
On the other hand, between the second moving element 102 and stator 8, there is applying and make the second moving element
Second force section of 102 power separated with stator 8 i.e. spring 15 (15a, 15b).It addition, second can
Dynamic element 102 does not have the effect pressed by Brake pad 14 towards braked body.
Fig. 2 is action and the magnetic circuit in magnetism loop of the electro-magnetic braking device that the embodiment of the present invention 1 is described
Sectional view.Fig. 2 (a) is brake relaxed condition, illustrates shape by (a), (b), the order of (c)
The situation that state shifts to braking maneuver.When braking starts, from brake relaxed condition (Fig. 2 (a))
Rising and cut off the electricity supply, electromagnetic force declines, and the active force of the spring 15 acting on the second moving element 102 exceedes
Electromagnetic force, thus the second moving element 102 separates (Fig. 2 (b)) with stator 8., or base then
This with the action of the second moving element 102 while, act on the electromagnetic force of the first moving element 101
Less than the active force of spring 11, thus the first moving element 101 is towards braking direction action (Fig. 2 (c)).
It follows that the effect of explanation embodiment 1.In embodiment 1, as in figure 2 it is shown, in magnetism loop
The flowing of the magnetic flux flow through changes like that according to magnetic circuit 17a, 17b, the 17c shown in dotted arrow.Fig. 2
A the magnetic circuit 17a in () passes through stator the 8, first moving element 101 and the second moving element 102.Connect down
Coming, when Fig. 2 (b), the second moving element 102 separates with stator 8, thus produces space,
Therefore, magnetic circuit 17b is divided in the inside of stator 8 by the magnetic circuit of the upside of coil 10 and in stator 8
By being returned to the magnetic circuit the two in stator 8 behind space again by space by the second moving element 102.
Due to the magnetic circuit space by the second moving element side, therefore, magnetic resistance now is more than Fig. 2's (a)
The magnetic resistance of magnetic circuit 17a.If additionally, become the state of Fig. 2 (c), then in the first moving element 101 side
Also forming space and between stator 8, its result is that magnetic resistance becomes big the most further.
On the other hand, Figure 11 is action and the magnetism loop of the electro-magnetic braking device that conventional example is described
The figure of magnetic circuit, the state of Figure 11 (a) and Figure 10 (b) is identical, Figure 11 (b) and Figure 10's (a)
State is identical.As shown in Figure 11 (b), the magnetic circuit 18 in the magnetism loop of existing structure is in stator 8
By returning the path in stator 8 by moving element 9 behind space.
Fig. 2 (d) illustrates what the first moving element 101 to the second moving element 102 first separated with stator 8
State, the magnetic circuit 17d in magnetism loop becomes the state similar with Figure 11 (b) of conventional example.Assume Fig. 2
In the thickness of stator 8 and the stator 8 of summation and Figure 11 (b) of thickness of the second moving element 102
Thickness is identical, then Fig. 2 (d) and Figure 11 (b) becomes equivalent state, and magnetic resistance is the most identical.It addition, by
In the space by the first moving element 101 side, therefore, the magnetic resistance of the state of Fig. 2 (d) is more than Fig. 2
The magnetic resistance of the state of (a).
Herein, if magnetic resistance is relatively big, then time constant T of flux change diminishes, and the response of magnetic flux improves.
The magnetic flux being additionally, since electromagnetic force and flow through square proportional, therefore, by making the response of magnetic flux
Property improve, it is thus possible to shorten electromagnetic force the reduction time.As a result of which it is, stator 8 in hypothesis Fig. 2
The summation of the thickness of thickness and the second moving element 102 is identical, then with the thickness of the stator 8 of Figure 11 (b)
When Fig. 2 (b), the Fig. 2 first separated with conventional Figure 11 (b), the first moving element 101
D () is compared, the first moving element 101 can be made to separate with stator 8 rapidly, and the response of braking is preferable.
Even if additionally, under transitive state after such first moving element 101 of Fig. 2 (c) separates with stator 8,
The reduction time of the electromagnetic force acting on the first moving element 101 is the shortest, the sound braked the most on the whole
Answering property is preferable.
Fig. 3 is the relation (magnetic field analysis result) representing electromagnetic force and time in embodiment 1 and conventional example
Figure.It is the result after being analyzed the change of the electromagnetic force in the case of following by emulation:
The summation of the thickness of the stator 8 in Fig. 2 and the thickness of the second moving element 102 and the stator 8 of Figure 11 (b)
Thickness identical under conditions of, the size in space is fixed by embodiment 1 when Fig. 2 (c), existing
Structure is had to be fixed as in space in Figure 11 (b) identical with first moving element 101 side of Fig. 2 (c)
Size, if electromagnetic force during time zero is 1, cut off confession to electromagnet in the moment of 0.05 second time
Electricity.From the figure 3, it may be seen that compared with existing structure, the electromagnetic force of embodiment 1 reduces quickly.Its result
It is to obtain the effect that the response of braking improves when braking starts.
Then, the situation being transferred to brake relaxed condition is illustrated.When braking is unclamped, it is possible to
According to Fig. 2 (c), (b), the sequential transfer state of (a), but in the case, with Fig. 2 (d)
Comparing, magnetic resistance is relatively big, and therefore, the response of electromagnetic force is relatively slow, produces braking and unclamps time-consuming new problem.
If response time is in permissible range, no problem, but in the case of cannot allowing, in order to accelerate
Response, needs bigger magnetomotive force when braking is unclamped, and electro-magnetic braking device 4 becomes to maximize.
Thus, in embodiment 1, preferably when braking is unclamped, according to Fig. 2 (c), (d), (a)
Sequential transfer state, i.e. utilize electromagnet by the first moving element 101 and the second moving element 102
It is attracted to stator 8, and, the second moving element 102 to the first moving element 101 first supports with stator 8
Connect.Thus, magnetic resistance can be reduced to the state close with conventional Figure 11 (b), when braking being unclamped
Response be maintained level as in the past.
It addition, about braking start time and braking make the first moving element 101 and second when unclamping respectively
Moving element 102 at which kind of timed activity, that is make which moving element elder generation action, with bullet
The active force of spring 11,15, the size in gap, stator 8 between coil 10 and the second moving element 102
The a variety of causes such as thickness of magnetic the most relevant, but substantially, can by suitably set spring 11,
The active force of 15 sets action timing.Therefore, it is possible to be set to braking start time, according to Fig. 2 (a),
B the sequential transfer of (), (c), when braking is unclamped, according to Fig. 2 (c), (d), (a)
Sequential transfer.Herein, about the active force of spring 11, produce, according to the specification of elevator, the system needed
Setting value needed for power determines that in a certain degree, and the degree of freedom of setting is less.On the other hand,
About the active force of spring 15, due to the second moving element 102 not by Brake pad 14 towards braked body
Pressing effect, therefore, the brake force after terminating indicial response does not affect, thus set from
Bigger by spending.
As it has been described above, according to embodiment 1, available simple structure improves response during braking.This
Outward, in the case of suitably setting action when braking is unclamped, the response braked when unclamping can be suppressed
Decline.
[embodiment 2]
Fig. 4 is action and the magnetic circuit in magnetism loop of the electro-magnetic braking device that the embodiment of the present invention 2 is described
Sectional view.In embodiment 2, be with the difference of embodiment 1, stator 8, be positioned at coil 10 with
Region between second moving element 102, is provided with such as nonmagnetic material bar 20 nonmagnetic material such as grade.
Fig. 4 (a), Fig. 4 (b), Fig. 4 (c) correspond respectively to Fig. 2 (a), Fig. 2 (b), Fig. 2
C (), in Fig. 4 (c), magnetic circuit 19 does not pass through in stator 8 because of nonmagnetic material 20, only becomes from sky
Gap begins through the path of the second moving element 102.As a result of which it is, compared with the situation of embodiment 1,
Can increase magnetic resistance when braking starts, response improves further.About other, basic and embodiment 1
Identical, therefore omit the description.
[embodiment 3]
Fig. 5 is the sectional view of the electro-magnetic braking device representing the embodiment of the present invention 3.In embodiment 1,2,
Braked body is brake drum, by pressing along the direction vertical with rotating shaft, thus produces brake force.With
This relatively, embodiment 3 is by clamping the structure braked as braked body of brake disc 22.
In Fig. 5,23a, 23b are Brake pad, and 13a, 13b are brake shoe, and 30 is sliding pin, and 25 are
Main body, 21 is fixed part, and 28 is the limiting member being fixed on fixed part 21.As it is shown in figure 5, to clamp
The mode of brake disc 22 is configured with Brake pad 23a, 23b, and wherein a side is supported on the first moving element
101, the opposing party is supported on main body 25 by connecting pin 24.Additionally, main body 25 is by bolt 26 and core body 31
Link.It addition, core body 31 is equivalent to the stator 8 in embodiment 1,2.
Then, use Fig. 5,6,7 that the action of embodiment 3 is described.Fig. 5 is brake relaxed condition, phase
When in the state of Fig. 2 (a), Fig. 6 is the transfering state after braking starts, and is equivalent to the shape of Fig. 2 (b)
State, Fig. 7 is on-position, is equivalent to the state of Fig. 2 (c).Action and effect due to essential part
Effect is same as in Example 1, therefore omits the description.In addition, it is possible to by the nonmagnetic material bar of embodiment 2
The structure of 20 is applied to embodiment 3.
Above, embodiments of the invention are illustrated, but explanation in each embodiment hereto
Structure be only an example, the present invention can suitably change without departing from the range of technological thought.
As long as additionally, the structure illustrated in embodiments contradiction the most each other, it is possible to be applied in combination.
Label declaration
1 car
2 pairs of pouring weights
3 hoist engines
4 electro-magnetic braking devices
5 hawsers
6 pulleys
7 brake drums
8 stators
9 moving elements
10 coils
11 springs
12a, 12b adjust bolt
13,13a, 13b brake shoe
14 Brake pads
15,15a, 15b spring
The magnetic circuit in the magnetism loop of 17a, 17b, 17c, 17d embodiment 1
The magnetic circuit in the magnetism loop of 18 existing structures
The magnetic circuit in the magnetism loop of 19 embodiments 2
20 nonmagnetic material bars
21 fixed parts
22 brake discs
23a, 23b Brake pad
24 connecting pins
25 main bodys
26 bolts
27 elastic components
28 limiting members
29 bearings
30 sliding pins
31 core bodys
101 first moving elements
102 second moving elements
Claims (7)
1. an electro-magnetic braking device, this electro-magnetic braking device includes braked body, is braked towards described
The Brake pad of body pressing and make that described Brake pad separates with described braked body by coil and fixed
The electromagnet that son is constituted, described electro-magnetic braking device is characterised by,
There is the first moving element, the first force section, the second moving element and the second force section, described
First moving element links with described Brake pad and is pressed towards described braked body by described Brake pad
Pressure, described first force section is arranged between described first moving element and described stator and by applying
The power making described first moving element separate with described stator applies described Brake pad towards described quilt
The power of brake body pressing, described second moving element is arranged in the movable with described first first of described stator
Side that part is contrary and not there is the effect pressed towards described braked body by described Brake pad, described
Second force section is arranged between described second moving element and described stator and apply to make described second can
The power that dynamic element separates with described stator,
Braking start time, while described first moving element separates with described stator or before,
Described second moving element separates with described stator.
2. electro-magnetic braking device as claimed in claim 1, it is characterised in that
When braking is unclamped, utilize described electromagnet by movable to described first moving element and described second unit
Part is attracted to described stator, and described second moving element is than described first moving element elder generation and institute
State stator to abut.
3. electro-magnetic braking device as claimed in claim 1, it is characterised in that
Described stator, region between described coil and described second moving element is provided with
Nonmagnetic material.
4. electro-magnetic braking device as claimed in claim 1, it is characterised in that
Described first force section and described second force section are spring.
5. electro-magnetic braking device as claimed in claim 1, it is characterised in that
Described braked body is brake drum.
6. electro-magnetic braking device as claimed in claim 1, it is characterised in that
Described braked body is brake disc.
7. an elevator, it is characterised in that
Have include the electro-magnetic braking device as described in any one of claim 1 to 6 hoist engine and
The car lifted is carried out by described hoist engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-033485 | 2015-02-24 | ||
| JP2015033485A JP2016156414A (en) | 2015-02-24 | 2015-02-24 | Electromagnetic brake device and elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105905828A true CN105905828A (en) | 2016-08-31 |
Family
ID=56744471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610097691.0A Pending CN105905828A (en) | 2015-02-24 | 2016-02-23 | Electromagnetic brake device and elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016156414A (en) |
| CN (1) | CN105905828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285103A (en) * | 2017-01-10 | 2018-07-17 | 株式会社日立制作所 | Hoist engine and elevator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019021673A (en) * | 2017-07-12 | 2019-02-07 | ファナック株式会社 | Three-phase reactor |
| CN110060839B (en) * | 2019-05-22 | 2020-09-04 | 闽江学院 | Transformer mounting structure |
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| CN102421693A (en) * | 2009-07-08 | 2012-04-18 | 三菱电机株式会社 | Direct-acting drum brake device for elevator |
| CN102428020A (en) * | 2009-06-12 | 2012-04-25 | 三菱电机株式会社 | Brake device for elevator hoist |
| CN103787167A (en) * | 2012-10-31 | 2014-05-14 | 株式会社日立制作所 | Electromagnetic brake device of elevator |
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- 2015-02-24 JP JP2015033485A patent/JP2016156414A/en active Pending
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| JP2002284486A (en) * | 2001-03-22 | 2002-10-03 | Sanyo Kogyo Kk | Hoist gear |
| JP2004316716A (en) * | 2003-04-14 | 2004-11-11 | Mitsubishi Electric Corp | Electromagnetic brake device |
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| CN102428020A (en) * | 2009-06-12 | 2012-04-25 | 三菱电机株式会社 | Brake device for elevator hoist |
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| JP2011026095A (en) * | 2009-07-28 | 2011-02-10 | Panasonic Home Elevator Co Ltd | Electromagnetic brake device for motor and hoisting machine for elevator using the same |
| CN103787167A (en) * | 2012-10-31 | 2014-05-14 | 株式会社日立制作所 | Electromagnetic brake device of elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108285103A (en) * | 2017-01-10 | 2018-07-17 | 株式会社日立制作所 | Hoist engine and elevator |
| CN108285103B (en) * | 2017-01-10 | 2019-08-16 | 株式会社日立制作所 | Hoist engine and elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016156414A (en) | 2016-09-01 |
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Application publication date: 20160831 |