CN105090295A - Electromagnetic brake device and elevator device using electromagnetic brake device - Google Patents
Electromagnetic brake device and elevator device using electromagnetic brake device Download PDFInfo
- Publication number
- CN105090295A CN105090295A CN201510235962.XA CN201510235962A CN105090295A CN 105090295 A CN105090295 A CN 105090295A CN 201510235962 A CN201510235962 A CN 201510235962A CN 105090295 A CN105090295 A CN 105090295A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- movable piece
- electro
- braking device
- fixed block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
Disclosed are an electromagnetic brake device and an elevator device using the electromagnetic brake device. The electromagnetic brake device (1) is provided with a movable member (2) and a fixed member (3), and the movable member (2) is installed in a manner that the movable member (2) takes a rotary shaft (4) as the center of rotation to rotate relative to the fixed member (3). A non-magnetic member (5a) as a non-magnetic part (5) is installed near the rotary shaft (4) of the movable member (2) in a manner that the non-magnetic member (5a) is buried into a concave part of the movable member (2).
Description
Technical field
The present invention relates to electro-magnetic braking device and use the elevator of this electro-magnetic braking device, particularly relate to the electro-magnetic braking device using electromagnet and the elevator using this electro-magnetic braking device.
Background technique
As the one of the drive system of rope (rope) formula elevator, there is towed (traction) drive system utilizing the frictional force driven between rope sheave (sheave) and rope.In the elevator of this mode, the rope connecting car and counterweight is wrapping with in driving rope sheave in transfusion bottle mode, and by making driving rope sheave rotate, car is elevated.On the other hand, by braking the rotation of driving rope sheave, car stationary.The braking of rope sheave is driven to adopt the electro-magnetic braking device using electromagnet.
Electro-magnetic braking device be used to elevator be representative, the braking of the driving rope sheave of the moving body such as automobile and train.As the example of patent documentation disclosing this electro-magnetic braking device, there are Japanese Unexamined Patent Publication 2008-128430 publication and Japanese Unexamined Patent Application Publication 2005-519465 publication.Propose in Japanese Unexamined Patent Publication 2008-128430 publication and carry out by electromagnetic actuators the braking device that drives.The direct solenoid actuator making engine valve (enginevalve) carry out action is proposed in Japanese Unexamined Patent Application Publication 2005-519465 publication.
For electro-magnetic braking device, should braking force be guaranteed, make electro-magnetic braking device miniaturization again.
Summary of the invention
The present invention completes as a ring of this research and development just, and one of its object is, provides the electro-magnetic braking device that can realize miniaturization, and its another object is, provides the elevator using such electro-magnetic braking device.
Electro-magnetic braking device of the present invention has fixed block, movable piece, running shaft, coil, spring section, rotating component (rotor) and non magnetic portion.Movable piece and fixed block relatively configure, and are supported in the mode that can rotate relative to fixed block.Coil produces and makes movable piece to the magnetic flux of the sideway swivel close to fixed block.Spring section has the active force making movable piece to the sideway swivel away from fixed block.To the sideway swivel away from fixed block, braking is implemented, by making movable piece to the sideway swivel close to fixed block to rotating component brake off to rotating component by making movable piece.Non magnetic portion is located at least any one party in fixed block and movable piece.Non magnetic portion is configured in the side of the rotating center become when movable piece rotates relative to fixed block.
Elevator of the present invention has above-mentioned electro-magnetic braking device, the hoist machine also having car He car is elevated.Electro-magnetic braking device is configured at hoist machine.
According to electro-magnetic braking device of the present invention, by having non magnetic portion, can electromagnetic torque be improved, contributing to the miniaturization of electro-magnetic braking device.
According to elevator of the present invention, electro-magnetic braking device has non magnetic portion, thereby, it is possible to improve electromagnetic torque, contributes to the miniaturization of electro-magnetic braking device.
Above-mentioned and other object, feature, aspect and advantage of the present invention, the detailed description as follows for the present invention according to associatedly understanding with accompanying drawing will definitely.
Accompanying drawing explanation
Fig. 1 is the figure of the structure that elevator is schematically shown, this elevator is an example of the device of the electro-magnetic braking device using the embodiments of the present invention.
Fig. 2 is the plan view that the electro-magnetic braking device used in the hoist machine of the elevator shown in Fig. 1 is shown.
Fig. 3 is the sectional view of the 1st state of the electro-magnetic braking device that embodiments of the present invention 1 are schematically shown.
Fig. 4 is the sectional view of the 2nd state of the electro-magnetic braking device schematically illustrated in this mode of execution.
Fig. 5 is the stereogram of the 1st state of the electro-magnetic braking device illustrated in this mode of execution.
Fig. 6 is the side view of the 1st state of the electro-magnetic braking device illustrated in this mode of execution.
Fig. 7 is plotted curve Magnetic flux density when attracting in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Fig. 8 is the plotted curve illustrated together with comparative example by electromagnetic torque when attracting in this mode of execution.
Fig. 9 is the sectional view of magnetic flux when attracting in the electro-magnetic braking device being schematically illustrated in comparative example.
Figure 10 is the sectional view of the magnetic flux schematically illustrated when attracting in this mode of execution.
Figure 11 is the stereogram of the 2nd state of the electro-magnetic braking device illustrated in this mode of execution.
Figure 12 is plotted curve Magnetic flux density when keeping in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Figure 13 is the plotted curve illustrated together with comparative example by electromagnetic torque when keeping in this mode of execution.
Figure 14 is the plotted curve of the relation that electromagnetic torque and non-magnetic part width in this mode of execution are shown.
Figure 15 is the sectional view of the 1st state of the electro-magnetic braking device that embodiments of the present invention 2 are schematically shown.
Figure 16 is the sectional view of the 2nd state of the electro-magnetic braking device schematically illustrated in this mode of execution.
Figure 17 is the sectional view of the electro-magnetic braking device that embodiments of the present invention 3 are schematically shown.
Figure 18 is the sectional view of the electro-magnetic braking device that embodiments of the present invention 4 are schematically shown.
Figure 19 is the sectional view of the electro-magnetic braking device that embodiments of the present invention 5 are schematically shown.
Figure 20 is the sectional view of the 1st state of the electro-magnetic braking device that embodiments of the present invention 6 are schematically shown.
Figure 21 is the sectional view of the 2nd state of the electro-magnetic braking device schematically illustrated in this mode of execution.
Figure 22 is the stereogram of the 1st state of the electro-magnetic braking device illustrated in this mode of execution.
Figure 23 is plotted curve Magnetic flux density when attracting in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Figure 24 is the plotted curve illustrated together with comparative example by electromagnetic torque when attracting in this mode of execution.
Figure 25 is the stereogram of the 2nd state of the electro-magnetic braking device illustrated in this mode of execution.
Figure 26 is plotted curve Magnetic flux density when keeping in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Figure 27 is the plotted curve illustrated together with comparative example by electromagnetic torque when keeping in this mode of execution.
Figure 28 is the sectional view of the electro-magnetic braking device that embodiments of the present invention 7 are schematically shown.
Figure 29 is the sectional view of the 1st state of the electro-magnetic braking device that embodiments of the present invention 8 are schematically shown.
Figure 30 is the sectional view of the 2nd state of the electro-magnetic braking device schematically illustrated in this mode of execution.
Figure 31 is the stereogram of the 1st state of the electro-magnetic braking device illustrated in this mode of execution.
Figure 32 is plotted curve Magnetic flux density when attracting in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Figure 33 is the plotted curve illustrated together with comparative example by electromagnetic torque when attracting in this mode of execution.
Figure 34 is the stereogram of the 2nd state of the electro-magnetic braking device illustrated in this mode of execution.
Figure 35 is plotted curve Magnetic flux density when keeping in this mode of execution and the relation of the distance apart from running shaft illustrated together with comparative example.
Figure 36 is the plotted curve illustrated together with comparative example by electromagnetic torque when keeping in this mode of execution.
Figure 37 is the stereogram of the electro-magnetic braking device of embodiments of the present invention 9.
Figure 38 is the stereogram of the structure of the fixed block illustrated in this mode of execution.
Embodiment
First, the summary of the tractor elevator device of the example as the device using electro-magnetic braking device is described.
As shown in Figure 1, in tractor elevator device 100, the car 101 that people etc. take is connected by wire rope (wirerope) 103 with counterweight 102.Wire rope 103 is by the pulley (not shown) be wrapping with in hoist machine 104.By controlling the driving of hoist machine 104, car 101 is elevated.
Hoist machine 104 has the electro-magnetic braking device 1 braked the driving of hoist machine 104.As shown in Figure 2, electro-magnetic braking device 1 has movable piece 2 and fixed block 3, and in the inner circumferential side of the brake drum (brakedrum) be connected with rotating component 8 and rotating component 8 arranged coaxial.Coil 6 is provided with at fixed block 3.Brake shoe (shoe) 10 is installed on movable piece 2, is provided with liner (lining) 9 at this brake shoe 10.In addition, movable piece 2 and fixed block 3 are such as formed by magnetic material such as iron.
By making liner 9 leave rotating component 8 (brake drum), braking and being removed.When discharging, by encouraging coil 6, movable piece 2 fixture 3 attracts.On the other hand, by making liner 9 contact rotating component 8, braking maneuver is carried out.When carrying out braking maneuver, by making the electric current flowing through coil 6 stop, the movable piece 2 being provided with liner 9 is pushed out due to the active force of the spring 7 as spring section, and liner 9 contacts rotating component 8.Below, the structure of electro-magnetic braking device is illustrated.
Mode of execution 1
The electro-magnetic braking device of mode of execution 1 is described.Fig. 3 schematically illustrates that electro-magnetic braking device 1 carries out the state (applying the state of braking) of action, and Fig. 4 schematically illustrates that electro-magnetic braking device 1 is by the state removed.As shown in Figure 3 and Figure 4, electro-magnetic braking device 1 has movable piece 2 and fixed block 3, and movable piece 2 is installed in the mode that can rotate for rotating center with running shaft 4 relative to fixed block 3.Non-magnetic part 5a as non magnetic portion 5 is installed near the running shaft 4 of movable piece 2.Non-magnetic part 5a is formed at the recess (or ladder) of movable piece 2 mode to be embedded to is installed.
In addition, in this electro-magnetic braking device 1, list the structure being provided with running shaft 4, but not necessarily running shaft must be installed.As long as movable piece 2 carries out installing in the mode that can rotate relative to fixed block 3, such as movable piece 2 also can be configured to can with an end of fixed block 3 for rotating center rotates.This electro-magnetic braking device for other mode of execution is also same.
Towards rotating component 8 side, the spring 7 that movable piece 2 exerts a force is arranged between fixed block 3 and movable piece 2.At movable piece 2, brake shoe 10 and liner 9 are installed.As shown in Figure 3, utilize the elastic force of spring 7 that liner 9 is pressed into rotating component 8, thus braking is applied to rotating component 8.In addition, the sense of rotation of rotating component 8 be from paper nearby side towards inboard or its opposite direction.In addition, in this electro-magnetic braking device 1, list spring 7 as spring section, but spring section is not limited to spring, such as, also can uses the elastomers such as vulcanite (rubber).
At fixed block 3, coil 6 (with reference to Fig. 5) is installed.By making it produce magnetic flux to this coil electricity, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center transfers touch fasteners 3 to fixed block 3 sidespin with running shaft 4.Now, liner 9 grade being installed on movable piece 2 also rotates simultaneously, and between liner 9 and rotating component 8, form gap (gap), the braking of rotating component 8 is removed.
In electro-magnetic braking device 1, the size of the electromagnet be made up of movable piece 2 and fixed block 3 is about several cm ~ tens of cm.Further, the gap of the center of movable piece 2 is about 0.1mm ~ 0.5mm.Therefore, the angle (angle of swing) formed by movable piece 2 and fixed block 3 is shown in figure 3 large.
About the thickness of non-magnetic part 5a, expect to be set to compared with gap enough large, be thus preferably set to about 20mm ~ 30mm.In addition, according to the relation between the thickness of movable piece 2, if the thickness of non-magnetic part 5a is blocked up, then the sectional area of the magnetic circuit in movable piece 2 reduces, and the magnetic resistance of movable piece 2 increases, and causes total magnetic flux to decline.Therefore, the Thickness Ratio of preferred non-magnetic part 5a is thinner.As non-magnetic part 5a, such as, can use composite material or the pottery etc. such as the metals such as nonmagnetic stainless steel, glass epoxy (glassepoxy).
Below, the action of electro-magnetic braking device 1 is illustrated in greater detail.The fixed block 3 of (front) and the stereogram of movable piece 2 when Fig. 5 illustrates and makes electro-magnetic braking device 1 action.Coil 6 is wound in the central part of the fixed block 3 of E shape.At this, if the number of turn of coil 6 is 500 circles.The length Lx of fixed block 3 is such as 40mm, length Ly is such as 112mm.Non-magnetic part 5a is embedded to the recess being formed at movable piece 2 end along length Ly direction.From the end of the side (or becoming the side of rotating center) being configured with running shaft 4 of movable piece 2 to the length (width of movable piece 2) of end of opposition side of side (or becoming the side of rotating center) being configured with running shaft 4, suitable with the length Lx of fixed block 3.
By to coil 6 energising make it produce magnetic flux, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 with running shaft 4 be rotating center to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap, the braking of rotating component 8 is removed.
At this, the relation of the Magnetic flux density to the gap location between movable piece 2 and fixed block 3 and the distance apart from running shaft 4 is described.The electric current be energized to coil 6 is set to 2A, and, as shown in Figure 6 the thickness T of non-magnetic part 5a is set to 2mm, evaluation result when its width L being set as 5mm and 10mm as shown in Figure 7.
As shown in Figure 7, the width L of non-magnetic part 5a is set as the result of (situation A) during 10mm is as shown in curve A, is set as the result of (situation B) during 5mm as curveb by the width L of non-magnetic part 5a.Further, as comparative example, not there is the result of (situation C) during non-magnetic part as illustrated by curve c.In addition, the movable piece 2 at central authorities (length Lx=20mm) place of movable piece 2 is 0.2mm with the gap of fixed block 3, and the gap of the end (length Lx=40mm) of movable piece 2 is 0.4mm.
Known as curveb, when non-magnetic part width L is 5mm, being in the scope of 5mm apart from the distance of running shaft 4, movable piece 2 is more than the thickness (2mm) of non-magnetic part 5a with the magnetism gap of fixed block 3, and thus Magnetic flux density is little of about 0.3T.On the other hand, apart from the distance of running shaft 4 more than in the scope of 5mm, Magnetic flux density is higher than the Magnetic flux density of (situation C) when not having a comparative example of non-magnetic part.
In addition, known as shown in curve A, when the width L of non-magnetic part 5a is 10mm, be in the scope of 10mm in the distance apart from running shaft 4, Magnetic flux density is little of about 0.3T.On the other hand, apart from the distance of running shaft 4 more than in the scope of 10mm, the Magnetic flux density of (situation B) when Magnetic flux density is 5mm higher than the width L of non-magnetic part 5a.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in Figure 8, electromagnetic torque when not having the comparative example of non-magnetic part is 23Nm, and electromagnetic torque when non-magnetic part width L is 5mm is increased to 27Nm.In addition, the electromagnetic torque when width L of non-magnetic part 5a is 10mm is increased to 29Nm further.
According to these results, in the electro-magnetic braking device of comparative example without non-magnetic part, as shown in Figure 9, Magnetic flux density 150 reduces together with the distance apart from running shaft 4, and in the electro-magnetic braking device of mode of execution with non-magnetic part, as shown in Figure 10, the Magnetic flux density when distance Magnetic flux density exceeded in the scope of non-magnetic part width that can increase apart from running shaft 4 makes it be greater than comparative example.Consequently, can increase and movable piece 2 be rotated and the electromagnetic torque drawn to fixed block 3 side draught, as electro-magnetic braking device, the ability of brake off can be improved.
Below, according to above-mentioned situation A ~ C, the relation of under the state after the brake release making electro-magnetic braking device 1 as shown in figure 11, between movable piece 2 and fixed block 3 the Magnetic flux density of gap location and the distance apart from running shaft 4 is described respectively.In addition, the state shown in this Figure 11 is the state that movable piece 2 and fixed block 3 engage each other closely substantially, is that electromagnetic torque exceedes the moment based on spring 7 and keeps the state of braking.
As shown in figure 12, the width L of non-magnetic part 5a is set as the result of (situation A) during 10mm is as shown in curve A, is set as the result of (situation B) during 5mm as curveb by the width L of non-magnetic part 5a.As comparative example, not there is the result of (situation C) during non-magnetic part as illustrated by curve c.In addition, the electric current be energized to coil 6 is set to 2A.
First, known as illustrated by curve c, do not have in the comparative example of non-magnetic part, have nothing to do with the distance apart from running shaft 4, Magnetic flux density is roughly even.Known as curveb, when non-magnetic part width L is 5mm, be in the scope of 5mm in the distance apart from running shaft 4, Magnetic flux density is little of about 0.2T.On the other hand, apart from the distance of running shaft 4 more than in the scope of 5mm, Magnetic flux density is higher than the Magnetic flux density of (curve C) when not having a comparative example of non-magnetic part.
Known as shown in curve A, when non-magnetic part width L is 10mm, be in the scope of 5mm in the distance apart from running shaft 4, Magnetic flux density is little of about 0.2T.On the other hand, apart from the distance of running shaft 4 more than in the scope of 5mm, the Magnetic flux density of (curve B) when Magnetic flux density is 5mm higher than the width L of non-magnetic part 5a.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in figure 13, electromagnetic torque when not having the comparative example of non-magnetic part is 38Nm, and electromagnetic torque when non-magnetic part width L is 5mm is increased to 42Nm.In addition, the electromagnetic torque when width L of non-magnetic part 5a is 10mm is increased to 45Nm further.
According to these results, in above-mentioned electro-magnetic braking device 1, by arranging non-magnetic part 5a, the moment that rotating component 2 is rotated can be increased, the ability maintaining braking hold mode can also be increased.
In above-mentioned evaluation, illustrate that the width L of non-magnetic part 5a is the situation of 5mm and the situation of 10mm.Below, the relation of this non-magnetic part width and electromagnetic torque is described.As shown in figure 14, the result of carrying out (attraction) during the braking maneuver of electro-magnetic braking device as shown in curve A, by the result of the state (maintenance) after brake release as curveb.
Known as Suo Shi curve A (maintenance), when non-magnetic part width is the 15mm longer than 10mm, electromagnetic torque drops to 44Nm.When non-magnetic part width is longer, width is 20mm, electromagnetic torque sharply drops to 41Nm.Known curve B (attraction) also can obtain same tendency.
The width 15mm of non-magnetic part 5a and the width of movable piece 2 about 40% suitable.Like this, time when attracting movable piece 2 with maintenance movable piece 2, preferably the width of non-magnetic part 5a is set to the width suitable with about 12.5% ~ 40% of the width of movable piece 2, to obtain enough electromagnetic torques respectively.
On the basis of above result, if coil is identical and electromagnetic torque is identical, then with do not have non-magnetic part comparative example electro-magnetic braking device compared with, in the electro-magnetic braking device 1 with non-magnetic part 5a, electro-magnetic braking device 1 miniaturization can be made.
In addition, if fixed block is with the measure-alike of movable piece and electromagnetic torque is identical, then with do not have non-magnetic part comparative example electro-magnetic braking device compared with, in the electro-magnetic braking device 1 with non-magnetic part 5a, the electric current that coil 6 is energized can be reduced, reduce the number of turn of coil 6.
Mode of execution 2
The electro-magnetic braking device using non-magnetic screws as non magnetic portion is described in mode of execution 2.Figure 15 schematically illustrates that electro-magnetic braking device 1 carries out the state of action, and Figure 16 schematically illustrates that electro-magnetic braking device 1 is by the state removed.As shown in Figure 15 and Figure 16, in electro-magnetic braking device 1, the non-magnetic screws (screw) 11 as non magnetic portion 5 is installed in the mode being embedded to the recess (or ladder) being formed at movable piece 2.Non-magnetic screws 11 is such as installed on end side and this two place, another side in running shaft 4 direction.In addition, recess is formed continuously along length Ly direction (with reference to Figure 11), but also can be the position of the installation non-magnetic screws 11 be individually formed at except the region except being surrounded by coil.
The part that non-magnetic screws 11 and fixed block 3 contact with each other becomes running shaft 4 (or fulcrum).Further, set screw 12 is arranged on the recess of movable piece 2, utilizes set screw 12 to adjust the height of non-magnetic screws 11.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, as shown in figure 15, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 16, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the non-magnetic screws 11 as non magnetic portion is installed on movable piece 2.Thus, with illustrate in mode of execution 1 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
On this basis, in above-mentioned electro-magnetic braking device 1, set screw 12 can be utilized to adjust the height of non-magnetic screws 11.Therefore, the situation of change is inferior because wearing and tearing wait for such as, height in non magnetic portion 5, easily can adjust the height in non magnetic portion 5, can improve maintainability (maintenance).
Mode of execution 3
The electro-magnetic braking device of mode of execution 3 is described.As shown in figure 17, in electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on fixed block 3, and non-magnetic part 5a utilizes set screw 12 to be fixed on the groove being formed at fixed block 3.Be formed with recess at non-magnetic part 5a, the head of set screw 12 is received to this recess.
Spacer element (spacer) 13 is arranged between fixed block 3 (groove) and non-magnetic part 5a.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 17, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on fixed block 3.Thus, with illustrate in mode of execution 1 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
On this basis, in above-mentioned electro-magnetic braking device 1, spacer element 13 is arranged between movable piece 2 (groove) and non-magnetic part 5a.Thereby, it is possible to the height of adjustment non-magnetic part 5a.Further, be formed with recess at non-magnetic part 5a, the head of set screw 12 is received to this recess.Thereby, it is possible to suppress the boundary dimension of movable piece 2 or fixed block 3 to increase.
In addition, in above-mentioned electro-magnetic braking device 1, list the example using being installed on fixed block 3 as the non-magnetic part 5a in non magnetic portion.The configuration mode of non-magnetic part is not limited thereto, such as also can combine, as long as non-magnetic part to be installed at least any one party in movable piece 2 and fixed block 3 with the structure (with reference to Fig. 3 etc. or Figure 15 etc.) non-magnetic part being installed on movable piece.
Mode of execution 4
The electro-magnetic braking device of mode of execution 4 is described.As shown in figure 18, in electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on movable piece 2.The recess (ladder) that non-magnetic part 5a utilizes set screw 12 to be fixed on to be formed at movable piece 2.Set screw 12 is to insert from the side being configured with liner towards the mode of the through movable piece 2 in the side residing for fixed block 3.
Spacer element 13 is arranged between movable piece 2 (recess) and non-magnetic part 5a.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 18, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on movable piece 2.Thus, with illustrate in mode of execution 1 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
On this basis, in above-mentioned electro-magnetic braking device 1, spacer element 13 is arranged between movable piece 2 (recess) and non-magnetic part 5a.Thereby, it is possible to the height of adjustment non-magnetic part 5a.Further, the structure that the head of set screw 12 is given prominence to from movable piece 2 shown in Figure 18, but also can form recess at movable piece 2, the head of set screw 12 is received into this recess.
Mode of execution 5
The electro-magnetic braking device of mode of execution 5 is described.As shown in figure 19, in electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on movable piece 2.Non-magnetic part 5a utilizes set screw 12 to be fixed on the groove being formed at movable piece 2.Set screw 12 is inserted into movable piece 2 from the side residing for fixed block 3.
Be provided with recess at non-magnetic part 5a, the head of set screw 12 is received to this recess.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 19, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is installed on movable piece 2.Thus, with illustrate in mode of execution 1 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
On this basis, in above-mentioned electro-magnetic braking device 1, be formed with recess at non-magnetic part 5a, the head of set screw 12 is received to this recess.Therefore, it is possible to suppress the boundary dimension of movable piece 2 or fixed block 3 to increase.
Mode of execution 6
In mode of execution 1 ~ 4, describe the electro-magnetic braking device being configured with non-magnetic part at the recess being formed at movable piece or fixed block (ladder), illustrate in mode of execution 6 and be configured with the electro-magnetic braking device of non-magnetic part as spacer element between movable piece and fixed block.
Figure 20 schematically illustrates that electro-magnetic braking device 1 carries out the state of action, and Figure 21 schematically illustrates that electro-magnetic braking device 1 is by the state removed.As shown in Figure 20 and Figure 21, in electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is arranged between movable piece 2 and fixed block 3 as spacer element.Non-magnetic part 5a installs continuously along length Ly direction (with reference to Figure 11), but also can be arranged on the two end part in the length Ly direction except the part except being surrounded by coil.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, as shown in figure 20, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 21, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
Illustrate in greater detail the action of electro-magnetic braking device 1.The fixed block 3 of (front) and the stereogram of movable piece 2 when Figure 22 illustrates and makes electro-magnetic braking device 1 action.Coil 6 is wound in the central part of the fixed block 3 of E shape.At this, identical with the electro-magnetic braking device 1 illustrated in mode of execution 1, if the number of turn of coil 6 is 500 circles.The length Lx of fixed block 3 is such as 40mm, length Ly is such as 112mm.
Non-magnetic part 5a is configured between movable piece 2 and fixed block 3.As non-magnetic part 5a, such as, except the composite material such as metal, glass epoxy or the potteries etc. such as nonmagnetic stainless steel, rubber or rosin lens etc. can also be used.
By making it produce magnetic flux to coil 6 energising, attraction force is produced between movable piece 2 and fixed block 3, movable piece 2 with running shaft 4 be rotating center to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), the braking of rotating component 8 is removed.
At this, the relation of the Magnetic flux density to the gap location between movable piece 2 and fixed block 3 and the distance apart from running shaft 4 is described.The electric current be energized to coil 6 is set to 2A, the evaluation result when thickness of the non-magnetic part as spacer element being set as 0.1mm as shown in figure 23.
As shown in figure 23, the result of (situation A) time non-magnetic part 5a (thickness: 0.1mm) is configured with as shown in curve A.As comparative example, not there is the result of (situation B) during non-magnetic part as curveb.In addition, when situation A, the movable piece 2 at central authorities (length Lx=20mm) place of movable piece 2 is 0.2mm with the gap of fixed block 3, and the gap at end (length Lx=40mm) place of movable piece 2 is 0.3mm.When situation B, the gap at end (length Lx=40mm) place of movable piece 2 is 0.4mm.
Known as shown in curve A, when the thickness of non-magnetic part 5a is 0.1mm, with do not have non-magnetic part comparative example situation (curve B) compared with, in the scope (~ about 20mm) shorter apart from the distance of running shaft, Magnetic flux density is less.On the other hand, in the scope (about 20mm ~) that the distance apart from running shaft is long, Magnetic flux density is larger.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in figure 24, electromagnetic torque when not having comparative example (without the spacer element) of non-magnetic part is 23Nm, and the electromagnetic torque when thickness of the non-magnetic part 5a as spacer element being set to 0.1mm is increased to 24Nm.
According to these results, there is the electro-magnetic braking device 1 of the non-magnetic part 5a as spacer element, with do not have non-magnetic part comparative example electro-magnetic braking device compared with, can increase and movable piece 2 be rotated and the electromagnetic torque drawn to fixed block 3 side draught, as electro-magnetic braking device, the ability of brake off can be improved.
Below, according to above-mentioned situation A, B, the relation of under the state after the brake release making electro-magnetic braking device 1 as shown in figure 25, between movable piece 2 and fixed block 3 the Magnetic flux density of gap location and the distance apart from running shaft 4 is described respectively.In addition, the state shown in this Figure 25 is the state of the ends contact fixed block 3 of the running shaft opposition side of movable piece 2, is that electromagnetic torque exceedes the moment based on spring 7 and keeps the state of braking.
As shown in figure 26, the result of (situation A) during non-magnetic part 5a (thickness: 0.1mm) as spacer element is configured with as shown in curve A.As comparative example, not there is the result of (situation B) during non-magnetic part as curveb.
Known as shown in curve A, when the thickness of non-magnetic part 5a is 0.1mm, compared with the situation (curve B) without non-magnetic part, in the scope (~ about 25mm) that the distance apart from running shaft is shorter, Magnetic flux density is less.On the other hand, in the scope (about 25mm ~) that the distance apart from running shaft is long, Magnetic flux density improves.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in figure 27, the electromagnetic torque without the comparative example (without spacer element) of non-magnetic part is 38Nm, and the electromagnetic torque when thickness of the non-magnetic part 5a as spacer element being set to 0.1mm is increased to 39Nm.
According to these results, there is the electro-magnetic braking device 1 of the non-magnetic part 5a as spacer element, with do not have non-magnetic part comparative example electro-magnetic braking device compared with, the moment that movable piece 2 is rotated can be increased, can also increase maintain braking hold mode ability.
Mode of execution 7
Describe in mode of execution 6 and there is the electro-magnetic braking device of non-magnetic part as spacer element, in mode of execution 7, illustrate that a part for this non-magnetic part is positioned at the electro-magnetic braking device of movable piece.
As shown in figure 28, in electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is arranged between movable piece 2 and fixed block 3 as spacer element.Be provided with recess at movable piece 2, a part of non-magnetic part 5a is received to this recess.In addition, structure is in addition identical with the electro-magnetic braking device shown in Figure 20 or Figure 21, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the non-magnetic part 5a as non magnetic portion 5 is arranged between movable piece 2 and fixed block 3 as spacer element, and a part of this non-magnetic part 5a is received to the recess being located at movable piece 2.
Therefore, even if a part of non-magnetic part 5a is received to the recess being located at movable piece 2, also with illustrate in mode of execution 6 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
Mode of execution 8
Describe in mode of execution 1 ~ 7 and there is the electro-magnetic braking device of non-magnetic part as non magnetic portion, in mode of execution 8, illustrate that there is the electro-magnetic braking device of space as non magnetic portion.
Figure 29 schematically illustrates that electro-magnetic braking device 1 carries out the state of action, and Figure 30 schematically illustrates that electro-magnetic braking device 1 is by the state removed.As shown in Figure 29 and Figure 30, in electro-magnetic braking device 1, the space 5b as non magnetic portion 5 is formed at movable piece 2.Space 5b is formed continuously along length Ly direction (with reference to Figure 11), but also can be formed at the two end part in the length Ly direction except the part except being surrounded by coil.In addition, structure is in addition identical with the electro-magnetic braking device shown in Fig. 3 or Fig. 4, thus marks identical label to same parts, not repeat specification except the situation of necessity.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, as shown in figure 29, under the state flowing through the coil (not shown) being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, as shown in figure 30, by making it produce magnetic flux to the coil electricity being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
Illustrate in greater detail the action of electro-magnetic braking device 1.The fixed block 3 of (front) and the stereogram of movable piece 2 when Figure 31 illustrates and makes electro-magnetic braking device 1 action.Coil 6 is wound in the central part of the fixed block 3 of E shape.At this, identical with the electro-magnetic braking device 1 illustrated in mode of execution 1, if the number of turn of coil 6 is 500 circles.The length Lx of fixed block 3 is such as 40mm, length Ly is such as 112mm.
Be formed towards the space 5b as non magnetic portion 5 of part 3 side opening that is relatively fixed at movable piece 2.The width being 3mm, space 5b to the length of space 5b from running shaft 4 is 7mm.Length from running shaft 4 to space 5b depends on the mechanical strength of movable piece 2, and such as about 2mm ~ 5mm is suitable length.
By making it produce magnetic flux to coil 6 energising, attraction force is produced between movable piece 2 and fixed block 3, movable piece 2 with running shaft 4 be rotating center to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), the braking of rotating component 8 is removed.
At this, the relation of the Magnetic flux density to the gap location between movable piece 2 and fixed block 3 and the distance apart from running shaft 4 is described.The evaluation result when electric current be energized to coil 6 being set to 2A as shown in figure 32.As shown in figure 32, the result of (situation A) during the 5b of space is formed as shown in curve A.As comparative example, not there is the result of (situation B) during space as curveb.In addition, when situation A, the movable piece 2 at central authorities (length Lx=20mm) place of movable piece 2 is 0.2mm with the gap of fixed block 3.
Known as shown in curve A, be in the scope of 3mm ~ 10mm in the distance apart from running shaft, movable piece 2 is greater than the gap of other parts with the magnetism gap of fixed block 3, and thus Magnetic flux density is little of about 0.2T.On the other hand, apart from the distance of running shaft 4 more than in the scope of 10mm, Magnetic flux density is higher than Magnetic flux density when not having comparative example (curve B) in space.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in figure 33, electromagnetic torque when not having the comparative example in space is 23Nm, and electromagnetic torque when having space is increased to 27Nm.
According to these results, there is the electro-magnetic braking device 1 of the space 5b as non magnetic portion 5, with do not have space comparative example electro-magnetic braking device compared with, can increase and movable piece 2 be rotated and the electromagnetic torque drawn to fixed block 3 side draught, as electro-magnetic braking device, the ability of brake off can be improved.
Below, according to above-mentioned situation A, B, the relation of under the state after the brake release making electro-magnetic braking device 1 as shown in figure 34, between movable piece 2 and fixed block 3 the Magnetic flux density of gap location and the distance apart from running shaft 4 is described respectively.
As shown in figure 35, the result with (situation A) during space, as shown in curve A, does not have the result of (situation B) during space as curveb.In addition, the electric current be energized to coil 6 is set to 2A.
First, known as curveb, do not have in the comparative example in space, have nothing to do with the distance apart from running shaft 4, Magnetic flux density is roughly even.Known as shown in curve A, be in the scope of 3mm ~ 10mm in the distance apart from running shaft, movable piece 2 is greater than the gap of other parts with the magnetism gap of fixed block 3, and thus Magnetic flux density is less.On the other hand, apart from the distance of running shaft 4 more than in the scope of 10mm, Magnetic flux density is higher than the Magnetic flux density of (curve B) when not having a comparative example in space.
Below, the electromagnetic torque around the running shaft 4 that movable piece 2 is described.Known as shown in figure 36, electromagnetic torque when not having the comparative example in space is 38Nm, and the electromagnetic torque with space is increased to 43Nm.
According to these results, in above-mentioned electro-magnetic braking device 1, non-magnetic part is not set and is provided as the space 5b in non magnetic portion 5, the moment that movable piece 2 is rotated can be increased thus, the ability maintaining braking hold mode can also be increased.
Mode of execution 9
In mode of execution 8, describe the electro-magnetic braking device in the space being provided as non magnetic portion near the running shaft in movable piece, illustrate in mode of execution 9 except space is also to have the electro-magnetic braking device of other structure near external running shaft.
Figure 37 illustrates that electro-magnetic braking device 1 carries out the state of action, the structure of the fixed block under the state after Figure 38 illustrates and unloads movable piece etc.Mainly as shown in figure 38, in fixed block 3, the tapped hole 15 for departing from center configuration spring (not shown) is formed with in the iron core portion being wound with coil 6.
In addition, in fixed block 3, be formed with rubber hole 14 close to the assigned position of running shaft 4 side with away from the assigned position both sides of running shaft 4 side, yielding rubber (cushionrubber) (not shown) for reducing sound when carrying out braking maneuver is inserted into this rubber hole 14.As except the region that the space 5b in non magnetic portion 5 is formed at except being formed with rubber hole 14, region near running shaft 4.
Below, the action of above-mentioned electro-magnetic braking device 1 is described.First, under the state flowing through the coil 6 being located at fixed block 3 not making electric current, movable piece 2 is pushed out into rotating component 8 (with reference to Fig. 3) side due to the active force of spring 7, the liner 9 (with reference to Fig. 3) being arranged on movable piece 2 contacts rotating component 8, applies braking thus.
On the other hand, by making it produce magnetic flux to coil 6 energising being located at fixed block 3, between movable piece 2 and fixed block 3, produce attraction force, movable piece 2 is that rotating center is to fixed block 3 sideway swivel with running shaft 4.By movable piece 2 to fixed block 3 sideway swivel, between liner 9 and rotating component 8, form gap (with reference to Fig. 4), brake and removed.
In above-mentioned electro-magnetic braking device 1, the space 5b as non magnetic portion 5 is located at movable piece 2.It can thus be appreciated that, with illustrate in mode of execution 8 identical, the moment that movable piece 2 is rotated can be increased, the ability of brake off can be improved and maintain the ability of the state after this releasing.
On this basis, in above-mentioned electro-magnetic braking device 1, be formed with rubber hole 14 at fixed block 3, yielding rubber (not shown) is inserted into this rubber hole 14.Thereby, it is possible to reduce sound when electro-magnetic braking device 1 carries out action.
In addition, in above-mentioned electro-magnetic braking device 1, list the structure being provided as the space 5b in non magnetic portion 5 at the outer peripheral portion of fixed block 3, but also space can be set in the region surrounded by coil 6.In addition, also can by appropriately combined for the structure of each mode of execution.
In addition, in each above-mentioned mode of execution, describe the electro-magnetic braking device being applied to elevator, but the device of application electro-magnetic braking device is not limited to elevator.Such as, the electro-magnetic braking device illustrated in each mode of execution can be used as the braking device of train or vehicle etc., and the braking device of hoist (hoist) or crane (crane) etc. can be used as.
The present invention can be effectively applied to the electro-magnetic braking device of the train and vehicle etc. taking elevator as representative.
Embodiments of the present invention are illustrated, but this time disclosed mode of execution is all only example in whole, should think it is not restrictive.Scope of the present invention, as shown in claims, comprises the whole changes in the meaning equal with claims and scope.
Claims (10)
1. an electro-magnetic braking device, this electro-magnetic braking device has:
Fixed block;
Movable piece, itself and described fixed block relatively configure, and are supported in the mode that can rotate relative to described fixed block;
Coil, its generation makes described movable piece to the magnetic flux of the sideway swivel close to described fixed block;
Spring section, it has the active force making described movable piece to the sideway swivel away from described fixed block;
Rotating component, implements braking, by make described movable piece to a sideway swivel close to described fixed block to this rotating component brake off to the sideway swivel away from described fixed block to this rotating component by making described movable piece; And
Non magnetic portion, it is located at least any one party in described fixed block and described movable piece,
Described non magnetic portion is configured in the side of the rotating center become when described movable piece rotates relative to described fixed block.
2. electro-magnetic braking device according to claim 1, wherein,
Described non magnetic portion is non-magnetic part.
3. electro-magnetic braking device according to claim 2, wherein,
At least any one party in described fixed block and described movable piece is provided with recess,
Described non-magnetic part is configured at described recess.
4. electro-magnetic braking device according to claim 2, wherein,
Described non-magnetic part is fixed at least any one party in described fixed block and described movable piece by screw.
5. electro-magnetic braking device according to claim 4, wherein,
Described non-magnetic part comprises height adjusting part.
6. electro-magnetic braking device according to claim 2, wherein,
Described movable piece has the 1st width, as from becoming the 1st end of side of described rotating center to the length of the 2nd end of opposition side of side becoming described rotating center,
Described non-magnetic part has the 2nd width, as from becoming the 3rd end of side of described rotating center to the length of the 4th end of opposition side of side becoming described rotating center,
Described 2nd width is configured to 12.5% ~ 40% of described 1st width.
7. electro-magnetic braking device according to claim 2, wherein,
Described non-magnetic part as spacer arrangement between described fixed block and described movable piece.
8. electro-magnetic braking device according to claim 1, wherein,
Described non magnetic portion is space.
9. electro-magnetic braking device according to claim 1, wherein,
Make buffer unit between described movable piece and described fixed block.
10. an elevator, this elevator has the electro-magnetic braking device described in any one in claim 1 ~ 9, and wherein, this elevator has:
Car; And
Hoist machine, it makes described car be elevated,
Described electro-magnetic braking device is configured at described hoist machine.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014103237 | 2014-05-19 | ||
| JP2014-103237 | 2014-05-19 | ||
| JP2015016914A JP6293069B2 (en) | 2014-05-19 | 2015-01-30 | Electromagnetic brake device and elevator device using the same |
| JP2015-016914 | 2015-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090295A true CN105090295A (en) | 2015-11-25 |
| CN105090295B CN105090295B (en) | 2018-07-06 |
Family
ID=54571379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510235962.XA Active CN105090295B (en) | 2014-05-19 | 2015-05-11 | Electro-magnetic braking device and the lift appliance using the electro-magnetic braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090295B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999899A (en) * | 2018-09-25 | 2018-12-14 | 日立电梯电机（广州）有限公司 | brake and elevator brake structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1586180A (en) * | 1976-08-28 | 1981-03-18 | Zahnradfabrik Friedrichshafen | Electro-magnetically operated friction clutch or brake |
| CN1007726B (en) * | 1984-11-16 | 1990-04-25 | 纳幕尔杜邦公司 | Process for catalytic synthesizing dimethylamine |
| US6182803B1 (en) * | 1999-02-01 | 2001-02-06 | Tsubakimoto Chain Co. | Spring-actuated electromagnetic brake with noise suppressing device |
| CN1289381A (en) * | 1998-11-23 | 2001-03-28 | 赫尔克里士公司 | Cationic starch/cationic galactomannan gum blends as strength and drainage aids |
| CN1551955A (en) * | 2001-09-05 | 2004-12-01 | Chr | Electromagnetic brake with variable spring rate damping members |
| US20050083159A1 (en) * | 2002-03-01 | 2005-04-21 | Johnson Control S Techology Company | Electromagnetic actuator with controlled attraction force |
| CN1748096A (en) * | 2004-02-19 | 2006-03-15 | 三菱电机株式会社 | Brake device and hoist for elevator |
| CN1289381C (en) * | 2002-09-12 | 2006-12-13 | 三菱电机株式会社 | Brake device of elevator hoist |
| JP2008128430A (en) * | 2006-11-24 | 2008-06-05 | Mitsubishi Electric Corp | Brake device for hoist machine |
-
2015
- 2015-05-11 CN CN201510235962.XA patent/CN105090295B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1586180A (en) * | 1976-08-28 | 1981-03-18 | Zahnradfabrik Friedrichshafen | Electro-magnetically operated friction clutch or brake |
| CN1007726B (en) * | 1984-11-16 | 1990-04-25 | 纳幕尔杜邦公司 | Process for catalytic synthesizing dimethylamine |
| CN1289381A (en) * | 1998-11-23 | 2001-03-28 | 赫尔克里士公司 | Cationic starch/cationic galactomannan gum blends as strength and drainage aids |
| US6182803B1 (en) * | 1999-02-01 | 2001-02-06 | Tsubakimoto Chain Co. | Spring-actuated electromagnetic brake with noise suppressing device |
| CN1551955A (en) * | 2001-09-05 | 2004-12-01 | Chr | Electromagnetic brake with variable spring rate damping members |
| US20050083159A1 (en) * | 2002-03-01 | 2005-04-21 | Johnson Control S Techology Company | Electromagnetic actuator with controlled attraction force |
| CN1289381C (en) * | 2002-09-12 | 2006-12-13 | 三菱电机株式会社 | Brake device of elevator hoist |
| CN1748096A (en) * | 2004-02-19 | 2006-03-15 | 三菱电机株式会社 | Brake device and hoist for elevator |
| JP2008128430A (en) * | 2006-11-24 | 2008-06-05 | Mitsubishi Electric Corp | Brake device for hoist machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999899A (en) * | 2018-09-25 | 2018-12-14 | 日立电梯电机（广州）有限公司 | brake and elevator brake structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090295B (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102128227B (en) | Brake method of electromagnet and friction composite disc type brake | |
| JP5395796B2 (en) | Brake using magnetic fluid | |
| JP4837672B2 (en) | Adjustable hysteresis driver | |
| JPH09229105A (en) | Self-holding type coupling device | |
| CN104836372B (en) | Cone rotor AC permanent magnet brake motor | |
| CN101334078B (en) | Drum type electromagnetic brake | |
| CN105090295A (en) | Electromagnetic brake device and elevator device using electromagnetic brake device | |
| JP3958619B2 (en) | Electromagnetic drum brake | |
| CN104967363A (en) | Motor electrifying braking device | |
| US4004262A (en) | Electromagnet for providing balanced friction face pressures on an armature in a vehicle electric brake system | |
| US20100230216A1 (en) | Brake device for a rail vehicle | |
| JP6293069B2 (en) | Electromagnetic brake device and elevator device using the same | |
| JP2006199408A (en) | Hoist machine for elevator | |
| KR101575280B1 (en) | Brake system for vehicle and control method | |
| CN212086046U (en) | Ring type permanent-magnet brake for elevator | |
| CN101815666B (en) | Hoist for elevator and brake system | |
| CN1963253A (en) | Combined clutch | |
| JP2005113965A (en) | Electromagnetic braking unit | |
| JP5234686B1 (en) | Adjustment method per brake surface | |
| JP5335736B2 (en) | Electromagnetic disc brake | |
| WO2018126353A1 (en) | Permanent magnet brake and servo drive motor | |
| KR200424453Y1 (en) | Elevator winch having direct electron break of drum type | |
| JP4408239B2 (en) | Electromagnetic disc brake and elevator hoisting machine equipped with the same | |
| KR101486728B1 (en) | Breaking system for train | |
| CN104989756B (en) | Electormagnetic braking sytem with electromagnetic clutch function and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |