CN103663075A - Electromagnetic brake and passenger-transporting device with the same - Google Patents
Electromagnetic brake and passenger-transporting device with the same Download PDFInfo
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- CN103663075A CN103663075A CN201310343207.4A CN201310343207A CN103663075A CN 103663075 A CN103663075 A CN 103663075A CN 201310343207 A CN201310343207 A CN 201310343207A CN 103663075 A CN103663075 A CN 103663075A
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- magnet stopper
- electromagnet
- armature
- tooth bar
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Abstract
In an electromagnetic brake, the position between an armature and an electromagnet can be automatically adjusted even when a brake lining has wear. The electromagnetic brake is provided with a shell for accommodating the electromagnet, a guide pin fixed on the shell of the electromagnetic brake and supporting the shell to be movable in an axis direction of a motor shaft, a limitation pin fixed in the shell and limiting the distance between the electromagnet and the armature in the axis direction of the motor shaft in a predetermined range, and a position holding member for holding the position of the electromagnet in the axis direction of the motor shaft when the brake is released and releasing the holding of the position in braking.
Description
Technical field
The present invention relates to a kind of magnet stopper and possess the apparatus of passenger conveyor of this magnet stopper.
Background technology
Conventionally, the electric tools that is applied to elevator, escalator, crane and lathe etc. is ready for use on the magnet stopper of holding position.This magnet stopper by the brake disc rotating together with motor reel, be fixed on motor base shell, with only can along the axially movable mode of electrical motor be supported on shell armature, armature is pressed towards brake disc by pressing spring, be fixed on shell and overcome by the pressing force of pressing spring, make armature leave the electromagnet of brake disc and be arranged on brake disc and armature between and any one the brake lining that is fixed in both form.
Above-mentioned magnet stopper for producing braking force when electrical motor stops.In order to produce braking force, cut off the electric current that is supplied to electromagnet.Now, owing to by pressing spring, armature being pressed towards brake disc, therefore utilize and brake lining between friction force by brake disc and motor reel with respect to shell and holding position.
On the other hand, when electrical motor rotates, remove the braking of magnet stopper.For brake off, make the electric current of prescribed level flow into electromagnet.By the magnetic force being produced from electromagnet by this electric current, attract armature.Due to the load of this attraction be configured to be greater than by pressing spring by armature the load when brake disc is pressed, therefore can make brake lining leave brake disc, do not produce friction force, thereby brake disc and electrical motor become and can rotate.
As with braking drum-type but not the relevant technology of magnet stopper of braking disc type, in patent documentation 1, provide the structure of the stroke of a kind of automatic adjusting armature (plunger).
Technical literature formerly
Patent documentation
Patent documentation 1: Japanese kokai publication hei 8-59146 communique
; in common magnet stopper; owing in fact existing response time poor between electrical motor and magnet stopper, under the state therefore also not stopping completely at electrical motor and produce friction force between brake lining, thereby cause brake lining to produce wearing and tearing.Due to these wearing and tearing, during braking, armature, near brake disc, increases the distance between armature and electromagnet, thereby produces following two problems.
First problem is, in braking, removes while starting and produces the towed situation of temporary transient drg, makes the advance rate of brake pad wear be acceleration/accel shape and increases.Below its reason is described.Square being inversely proportional to of the magnetic force being produced by electromagnet and distance.Therefore, along with brake lining is worn and torn, it is large that the distance between electromagnet and armature becomes, and in order to overcome, attracts the required magnetic force of armature to become large by pressing spring.And place exists operating lag at electromagnet, the magnetic force being produced by electromagnet presents the trend that As time goes on increases and converge on certain value.Therefore the time that, generation attracts the required magnetic force of armature to spend is elongated.Like this, at electrical motor, start after rotation the armature spring press that is still pressed, the towing that produces drg.This towing becomes the reason that brake lining produces wearing and tearing, and further causes the distance between electromagnet and armature to become large, and repeats above-mentioned chain.It should be noted that after the distance between armature and electromagnet reaches more than certain distance, just cannot produce and attract required magnetic force, cause armature to be attracted by electromagnet, becoming cannot brake off.
Second Problem is, because the be pressed distance of spring press of armature when braking starts is elongated, so the moving velocity of armature strengthens, and brake lining bumped with larger speed, thereby cause noise to become large.
In existing magnet stopper, as the countermeasure addressing the above problem, need within the shorter cycle, the abrasion loss to brake lining check, and the distance between armature and electromagnet while adjusting as required braking.
And, at elevator, escalator, crane and lathe etc., use in the machinery of above-mentioned magnet stopper, in order to carry out above-mentioned maintenance and to adjust operation, need to make machinery out of service, especially, if the escalator playing in the station of great role is out of service, can significantly hinder passenger's convenience aspect passenger transports.
In addition, the technology of the stroke of a kind of automatic adjusting armature (plunger) is disclosed in patent documentation 1, because the disclosed technology of patent documentation 1 is the technology of the moving range of armature that automatically regulates under the state being fixed at winding, although therefore can solve above-mentioned Second Problem, but there is while departing from winding along with the position of armature because of the automatic adjustment of the moving range of armature the problem that attractive force can die down gradually.
Summary of the invention
The object of the present invention is to provide a kind of magnet stopper and possess the apparatus of passenger conveyor of this magnet stopper, even in the situation that wearing and tearing have occurred brake lining, also can automatically adjust the position of armature and electromagnet.
Solution
Magnet stopper of the present invention for example has: brake disc, and it is usingd and can be supported on the first S. A. as the S. A. of electrical motor along axially movable mode; Armature, it is pressed to described brake disc by the first Compress Spring; Brake lining, it is configured between described brake disc and described armature and produces braking force; And electromagnet, it overcomes described the first Compress Spring and attracts described armature, it is characterized in that, and described magnet stopper possesses: housing, it takes in described electromagnet; Guide pin, it is fixed on the shell of described magnet stopper, and described housing is supported to can moving axially along described the first S. A.; Limiting pin, it is fixed on described housing, and by between described electromagnet and described armature, described the first S. A. axially on distance limit within the limits prescribed; And position retaining member, its when brake off to described electromagnet described the first S. A. axially on position keep, and remove the maintenance of described position when braking.
In addition, apparatus of passenger conveyor of the present invention for example possess the step moving in circles between gangway, for drive described step electrical motor, when described electrical motor stops, keeping the magnet stopper of described step position, the handrail of controlling for passenger and for guiding the railing of described handrail, described apparatus of passenger conveyor is characterised in that, as described magnet stopper, uses above-mentioned magnet stopper.
Invention effect
According to the present invention, even in the situation that wearing and tearing have occurred brake lining, also can automatically adjust the position of armature and electromagnet.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the first embodiment, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.
Fig. 2 is near the details figure at the position tooth bar shown in Fig. 1 and grab.
Fig. 3 is the cutaway view of the first embodiment, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.
Fig. 4 is near the details figure at the position tooth bar shown in Fig. 3 and grab.
Fig. 5 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.
Fig. 6 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.
Fig. 7 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while braking under the state that wearing and tearing have occurred brake lining.
Fig. 8 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while brake releasing under the state that wearing and tearing have occurred brake lining.
Fig. 9 is the cutaway view of the first embodiment, is illustrated in the situation while braking under the state that wearing and tearing have occurred brake lining.
Figure 10 is the cutaway view of the first embodiment, is illustrated in the situation while brake releasing under the state that wearing and tearing have occurred brake lining.
Figure 11 is the cutaway view of the second embodiment, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.
Figure 12 is near the details figure at the position tooth bar shown in Figure 11 and engagement piece.
Figure 13 is the figure observing from the A direction of Figure 12.
Figure 14 is the cutaway view of the second embodiment, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.
Figure 15 is the tooth bar of Figure 14 and near the details figure at the position of engagement piece.
Figure 16 is near the details figure at the position tooth bar in the 3rd embodiment.
Figure 17 is the overall diagram of the apparatus of passenger conveyor of the 4th embodiment.
Description of reference numerals is as follows:
1: shell, 2: bearing, 3: motor reel, 4: spline, 5: brake disc, 6: guide pin, 7: adapter plate, 8: tooth bar, 8a: tooth mountain, 9: armature, 9a: hole portion, 10: housing, 11a, 11b: brake lining, 12: limiting pin, 12a: axial region, 12b: front end, 12c: head, 13: electromagnet, 14: grab S. A., 15: release spring, 16: grab, 16a: bar portion front end, 16b: claw, 16c: bar portion, 17: press pressing spring, 18: limited part, 18a: dip plane, 18b: axial region, 19: release spring, 20: engagement piece, 20a: dip plane, 20b: slot part, 20c: crown, 26: guide pin, 29: armature, 30: housing, 37: press pressing spring, 46: guide pin, 50: housing, 51a, 51b: gangway, 52: step, 53: actuating device, 54: Machine Room, 55: guidance panel, 56: railing
The specific embodiment
Referring to accompanying drawing, embodiments of the invention are described.It should be noted that in each accompanying drawing and each embodiment, same or similar inscape is marked to identical Reference numeral, and description thereof is omitted.
The first embodiment
Fig. 1 is the cutaway view of the magnet stopper of the first embodiment, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.Fig. 2 is near the details figure at the position tooth bar shown in Fig. 1 and grab.
In the first embodiment, the shell 1 of magnet stopper is that it is fixed on pedestal for the part of motor stator is installed.At shell 1, be fixed with bearing 2, be provided with electrical motor rotor, as the motor reel 3 of the S. A. of electrical motor, by this bearing 2, be supported to and can be rotated.At motor reel 3, be processed with spline 4, as the brake disc 5 of disc-shaped component by this spline 4 be supported to can motor reel 3 axially on move.In addition, on the circumference centered by motor reel 3 of shell 1, be fixed with many guide pin 6.Guide pin 6 when adapter plate 7 and tooth bar 8 are fixed, by armature 9 and housing 10 be supported to can motor reel 3 axially on move.Adapter plate 7 is for fear of interfering with motor reel 3 circular ring-shaped member that Er center has hole, at the position by brake disc 5 sides of adapter plate 7, is fixed with the brake lining 11a as friction material.Armature 9 is the same with adapter plate 7, and the center of being configured to has the circular ferromagnet part in hole, has the 9a of hole portion that the axial region 12a for limiting pin 12 described later passes, and at the position by brake disc 5 sides of armature 9, is fixed with brake lining 11b.
At housing 10, be fixed with limiting pin 12, electromagnet 13 and grab S. A. 14, and be fixed with one end of release spring 15.Limiting pin 12 is bolt shape parts, and its front end 12b is fixed on housing 10, and axial region 12a runs through the 9a of hole portion of armature 9, and the diameter of head 12c is greater than the diameter of the 9a of hole portion.Grab S. A. 14 is can be around the part of its rotation for grab 16 is supported to.Release spring 15 is Compress Springs, and housing 10 is fixed in its one end, and the other end is pressed the front end 16a of bar portion of grab 16.Grab 16 is ferromagnet parts, across grab S. A. 14, a side, has the front end 16a of bar portion, the opposing party, has claw 16b.At tooth bar 8, be formed with the profile of tooth that can engage with claw 16b engagement.Between tooth bar 8 and armature 9, be provided with as Compress Spring by pressing spring 17, guide pin 6 is through the inside of pressing pressing spring 17.
Fig. 2 represents the details figure of tooth bar 8, grab S. A. 14, release spring 15, grab 16.By tooth bar 8, grab S. A. 14, release spring 15, grab 16, form position retaining member.
As depicted in figs. 1 and 2, when braking, owing to not having electric current to flow into electromagnet 13, therefore press pressing spring 17 armature 9 is pushed towards brake disc 5 and adapter plate 7.Now, because armature 9 and brake disc 5 can move up at the axle of motor reel 3, so brake disc 5 is sandwiched between brake lining 11a, 11b, between brake lining 11a, 11b and brake disc 5, produces friction force.Now, armature 9 is subject to the restriction of guide pin 6 around the rotation of motor reel 3, and because guide pin 6 and adapter plate 7 are fixing by the shell 1 that is fixed on pedestal, so motor reel 3 is braked.
In addition, grab 16 is subject to release spring 15 and presses, and its claw 16b is towards the direction rotation that leaves tooth bar 8.Its result, position retaining member to housing 10, be fixed on the limiting pin 12 of housing 10, the motor reel 3 of electromagnet 13 axially on the maintenance of position be disengaged, head 12c is attracted by armature 9 and moves towards shell 1, and the housing 10 of taking in electromagnet 13 also carries out identical movement.That is to say, the motor reel 3 between electromagnet 13 and armature 9 axially on distance take and be limited within the limits prescribed as the upper limit by the specified value of the degree of depth of the 9a of hole portion and the length legislations of axial region 12a.
Fig. 3 is the cutaway view of the first embodiment, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.Fig. 4 is near the details figure at the position tooth bar shown in Fig. 3 and grab.
When the braking of removing magnet stopper, make electric current flow into electromagnet 13, therefore as the armature 9 of ferromagnet part and the 16c of bar portion of grab 16, overcome respectively by the load of pressing spring 17, release spring 15 and move towards electromagnet 13.Now, owing to comparing very little for the load that makes grab 16 leave the release spring 15 of tooth bar 8 with the load by pressing spring 17 for generation of braking force, therefore the 16c of bar portion first contacts with electromagnet 13, and claw 16b and tooth bar 8 mesh and the position of housing 10 is fixed.After this, armature 9 is attracted by electromagnet 13, and brake lining 11b leaves brake disc 5, owing to becoming and not producing friction force between brake lining 11b and brake disc 5, therefore the braking of motor reel 3 is disengaged.And, now housing 10, be fixed on the limiting pin 12 of housing 10, the motor reel 3 of electromagnet 13 axially on position by position retaining member, keep, so the distance in the motor reel 3 between electromagnet 13 and armature 9 axial is in lower limit (being now 0).
Below the problem relevant with wearing and tearing brake lining that exist in existing magnet stopper described.
Fig. 5 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.
Limiting pin 12 and position retaining member are not set in existing magnet stopper.Armature 29 is supported on set pin 26 in the mode that can move up at the axle of motor reel 3, and the housing 30 of fixed electromagnet 13 is fixed in guide pin 26, as being arranged between housing 30 and armature 29 by pressing spring 37 of Compress Spring.When braking, owing to not having electric current to flow into electromagnet 13, therefore press pressing spring 37 armature 29 is pushed towards brake disc 5 and adapter plate 7, produce thus braking force.Now, because housing 30 is fixed in guide pin, therefore different from the first embodiment, its position does not change.
Fig. 6 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.When brake off, owing to making electric current flow into electromagnet 13, therefore as the armature 29 of ferromagnet part, overcome by the load of pressing spring 37 and move towards electromagnet 13.Its result, brake lining 11b leaves brake disc 5, and braking is disengaged.
Fig. 7 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while braking under the state that wearing and tearing have occurred brake lining.In the situation that brake lining 11a, 11b have produced wearing and tearing, the armature 29 that the spring 37 that is pressed is pressed is compared with the state shown in Fig. 5, and the distance between electromagnet 13 becomes large.Square being inversely proportional to of the size of the magnetic force producing due to electromagnet and distance from electromagnet, therefore, when attracting armature 29 by electromagnet 13, when namely braking is removed, needs to produce the electromagnet of larger magnetic force.As mentioned above, because of the response of electromagnet, delay, produce the required time of this larger magnetic force elongated, namely the response time of magnet stopper is elongated, therefore of short duration pulling drg likely.
Fig. 8 is the cutaway view of magnet stopper of the prior art, is illustrated in the situation while brake releasing under the state that wearing and tearing have occurred brake lining.By comparing known with Fig. 6, it is large that distance between brake lining 11b and brake disc 5 becomes, when braking under this state, the time that armature 29 moves under by the pushing of pressing spring 37 is elongated, make the collision velocity of brake lining 11b and brake disc 5 become large, may make noise become large.In addition, because the miles of relative movement of armature 29 is elongated, therefore brake the required time (the namely response time of magnet stopper) elongated, when having External Force Acting in motor reel 3, motor reel 3 is unexpectedly rotation likely.
Armature 9 while below, wearing and tearing having been occurred the brake lining 11b of the first embodiment to describes with the automatic adjustment of the position of electromagnet 13.
Fig. 9 is the cutaway view of the first embodiment, is illustrated in the situation while braking under the state that wearing and tearing have occurred brake lining.When braking, because the position of position holding device keeps being disengaged, therefore at armature 9, be subject to by pressing of pressing spring 17 when brake disc 5 and adapter plate 7 move, housing 10 also moves under the effect of limiting pin 12, thereby the state that wearing and tearing do not occur for the interval between armature 9 and electromagnet 13 and brake lining 11a, 11b is that this interval under state shown in Fig. 1 is identical.Its result, the miles of relative movement of the magnetic force that brake off is required and armature 9 is also identical with magnetic force and miles of relative movement under the state that does not occur to wear and tear, so drg can not occur by the situation of of short duration towing.And, do not need the abrasion loss of electronic pad 11b to check, do not need to adjust operation according to check result yet, and can reduce the magnetic force being produced by electromagnet 13 and produce the required consumption electric energy of magnetic force.
It should be noted that, movement by armature 9 makes by the total length of pressing spring 17 elongated, the load occurring by pressing spring 17 declines, to this, when the design of carrying out by the natural length of pressing spring 17, the generation load by pressing spring 17 that the slippage that makes the load that occurs by pressing spring 17 and brake lining do not occur under the state of wearing and tearing is compared very little.When the length that makes guide pin 6 in order to ensure this natural length is long, also guide pin 6 can be divided into for installing by the first guide pin of pressing spring 17 with for the second guide pin of tooth bar 8 is installed and arrange, thus reduce magnet stopper motor reel 3 axially on length.
Figure 10 is the cutaway view of the first embodiment, is illustrated in the situation while brake releasing under the state that wearing and tearing have occurred brake lining.When brake off, the 16c of bar portion is attracted by electromagnet 13, and claw 16b engages with tooth bar 8, comes holding position thus by position retaining member.The state that wearing and tearing do not occur with brake lining 11a, 11b is that the state shown in Fig. 3 is compared, this clamped position is towards adapter plate 7 near the distance equating with total abrasion loss of brake lining 11a, 11b, and brake lining 11a, 11b are identical with the interval under the state that does not occur to wear and tear with the interval between brake disc 5.Its result, the speed of brake lining 11a during braking, 11b and the brake disc 5 collisions also situation when not there are wearing and tearing is identical, can not cause noise to increase.
The magnet stopper of the present embodiment has: brake disc 5, and this brake disc 5 is usingd and can be supported on the motor reel 3 as the S. A. of electrical motor along axially movable mode; Armature 9, this armature 9 spring 17 that is pressed is pressed towards brake disc 5; Brake lining 11b, this brake lining 11b is arranged between brake disc 5 and armature 9, for generation of braking force; And electromagnet 13, this electromagnet 13 overcomes by the elastic force of pressing spring 17 and attracts armature 9, and this magnet stopper also possesses: the housing 10 of taking in electromagnet 13; Guide pin 6, this guide pin 6 is fixed on the shell 1 of magnet stopper 13, and by housing 10 be supported to can motor reel 3 axially on move; Limiting pin 12, this limiting pin 12 is fixed on housing 10, and by between electromagnet 13 and armature 9 motor reel 3 axially on distance limit within the limits prescribed; And position retaining member, this position retaining member when brake off to electromagnet 13 motor reel 3 axially on position keep, when braking, remove the maintenance to this position.Because magnet stopper has above-mentioned member, thereby even in the situation that wearing and tearing have occurred brake lining, also can automatically adjust the position of armature 9 and electromagnet 13.
Thus, distance during braking between armature 9 and electromagnet 13 can not become because of the wearing and tearing of brake lining greatly, therefore has advantages of until the wearing and tearing of brake lining reach operating limit and does not need to be serviced operation.
Owing to described distance can being remained on to initial condition, therefore also have the following advantages.First, owing to the brake disc in when braking and the collision velocity of brake lining can also being remained on to initial condition, therefore have advantages of and can prevent noise increase.Secondly, owing to the response time of magnet stopper can also being remained on to initial condition, therefore have and can suppress the advance rate that drg pulled, made brake pad wear and keep certain, can improve the advantage of the life prediction precision of brake lining.And, owing to there is no need in the situation that described distance increases, electromagnet to be set for and is greater than the necessary size of initial condition the attractive force of armature, therefore have advantages of can select armature attractive force little, namely consume the electromagnet that electric energy is little.
And, concerning the machinery of the use magnet stoppers of the present invention such as elevator, escalator, crane and lathe, out of service owing to there is no need for operation is overhauled and adjusted in the wearing and tearing of brake lining, thus the convenience that can improve user there is.
It should be noted that, in the first embodiment, as position retaining member, show by the tooth bar 8 of being located at guide pin 6, be located at housing 10 grab S. A. 14, be supported to can around grab S. A. 14 rotation and when being attracted by electromagnet 13 around 14 rotations of grab S. A. and with the grab 16 of tooth bar 8 engagements and the example of being located at housing 10 and in the direction separated with tooth bar 8, the release spring 15 of grab 16 application of forces being formed.
The second embodiment
Figure 11 is the cutaway view of the second embodiment, is illustrated in the situation while braking under the state that wearing and tearing do not occur brake lining.Figure 12 is near the details figure at the position tooth bar shown in Figure 11 and engagement piece.Figure 13 is the figure observing from the A direction of Figure 12.In a second embodiment, the structure of position retaining member is different from the first embodiment.Mainly for the part different from the first embodiment, describe below, and omit the explanation of repeating part.
In a second embodiment, by tooth bar 8, limited part 18 and engagement piece 20, form position retaining member.It should be noted that position retaining member also can possess release spring 19.
As shown in Figure 12 and Figure 13, when braking, by release spring 19, limited part 18 is moved towards the direction of leaving electromagnet 13, so that the mode that the crown 20c of engagement piece moves along the mountain peak 8a of the tooth of tooth bar 8 makes engagement piece 20 towards the direction displacement of leaving tooth bar 8, make the axial region 18b of limited part 18 enter the slot part 20b of engagement piece 20.Now, position retaining member is disengaged the maintenance of position, and housing 50 can move corresponding to the wearing and tearing of brake lining 11a, 11b.
Figure 14 is the cutaway view of the second embodiment, is illustrated in the situation of brake when releasing under the state that wearing and tearing do not occur brake lining.Figure 15 is the tooth bar of Figure 14 and near the details figure at the position of engagement piece.
When brake off, make electric current flow into electromagnet 13, engagement piece 18 as ferromagnet part is attracted by electromagnet 13, therefore the dip plane 18a of limited part 18 is pressed against on the dip plane 20a of engagement piece 20, engagement piece 20 is pressed against on tooth bar 8, and the crown 20c of engagement piece enters the slot part of the tooth of tooth bar 8.Due to engagement piece 20 motor reel 3 axially on movement be subject to the restriction of housing 50, so housing 50 is fixed in tooth bar 8.Identical with the first embodiment, armature 9 is also attracted by electromagnet 13, but due to the load of release spring 19 with by the load of pressing spring 17, compare very littlely, so limited part 18 is compared with armature 9 and first by electromagnet 13, is attracted.Thereby after the position of housing 50 is fixed, armature 9 is just attracted by electromagnet 13 with tooth bar 8 engagements at engagement piece 20.Thus, when brake off, the position of carrying out position-based retaining member keeps.
As mentioned above, the position retaining member of the second embodiment consists of tooth bar 8, engagement piece 20 and limited part 18, this tooth bar 8 is located at guide pin 46, this engagement piece 20 is supported on housing 50 in the mode that can move on the radial direction of motor reel 3, and with tooth bar 8 engagements, this limited part 18 is supported on housing 50 in the mode that can move up at the axle of motor reel 3, and by electromagnet 13, is attracted and engagement piece 20 is pressed towards tooth bar 8.In addition, position retaining member also can be made as also has release spring 19, and this release spring 19 is located at housing 50, in the direction of leaving electromagnet 13 to limited part 18 application of forces.
Also can obtain in a second embodiment the effect identical with the first embodiment, and the second embodiment is characterised in that, because the shearing of the engagement piece 20 by between tooth bar 8 and housing 50 carrys out support housing 50, therefore can easily improves supporting rigidity.
In a second embodiment, the degree of balance of pressing friction force between friction force, the dip plane 20a of engagement piece and the dip plane 18a of limited part 18 between friction force, engagement piece 20 and the housing 50 between the crown 20c of load, tooth bar 8 and engagement piece 20 of pressing spring 17 and the friction force between limited part 18 and housing 50 is suitable, only relying on the occasion that just can when braking, limited part 18 and electromagnet 13 be separated by the load of pressing spring 17, also can omit release spring 19.
The 3rd embodiment
In the 3rd embodiment, the various variation of the first embodiment and the second embodiment are described.
Figure 16 is near the details figure at the position tooth bar in the 3rd embodiment.An example as variation, in the first embodiment and the second embodiment, for example, shown in the example of Figure 16, also can arrange with the different interval p ' of the tooth pitch p of the tooth from tooth bar 8 and be configured and the claw 16b of a plurality of grabs 16 or the crown 20c of engagement piece 20 that each other can independent displacement.Specifically, in the occasion of the first embodiment, grab 16 is provided with many groups with release spring 15 in mode independent of each other, and by organize more grab 16 motor reel 3 axially on interval be arranged to different from the tooth pitch of the tooth of tooth bar 8.In the occasion of the second embodiment, engagement piece 20 arranges many groups with limited part 18 in mode independent of each other, and by organize more engagement piece 20 motor reel 3 axially on interval be arranged to different from the tooth pitch of the tooth of tooth bar 8.Now, can housing 10 or housing 50 be fixed on to tooth bar 8 to be less than the interval of tooth pitch p.
In addition, other examples as variation, in order to make to separate suitable distance between brake lining 11b and brake disc 5 when the brake off, also can be between armature 9 and electromagnet 13 along motor reel 3 not shown Compress Spring is axially set, the distance while making to brake between armature 9 and electromagnet 13 becomes by limiting pin 12 set upper limit values.
In addition, as another other examples of variation, can be provided for measuring at guide pin 6 or tooth bar 8 the not shown sensor of the amount of movement of housing 10 or housing 50, thereby can indirectly measure the abrasion loss of brake lining 11a, 11b.And, also can use limit switch as this sensor, while reaching the position of regulation in the position of housing, output represents that brake lining 11 has reached the information of wear limit, thus can simplified structure.By adopting said structure, can obtain easily for predicting the information in the period that reaches wear limit, can detect brake lining 11 and whether reach wear limit.
The 4th embodiment
Referring to Figure 17 to having used the embodiment of apparatus of passenger conveyor of the magnet stopper of the first embodiment to the three embodiment to describe.Figure 17 is the overall diagram of the apparatus of passenger conveyor in the 4th embodiment.Apparatus of passenger conveyor is the railing 56 that has the step 52 that moves in circles and arrange along the moving direction of step 52 between two gangway 51a, 51b, for the passenger who takes on this step 52 is transported to the equipment of outlet from entrance.Step 52 is driven and makes its actuating device moving in circles 53 mainly by being arranged on, be positioned at the Machine Room 54 of gangway 51a below or electrical motor, retarder and the magnet stopper of step 52 belows forms.
When using existing magnet stopper, for magnet stopper being overhauled and maintained operation, need to make apparatus of passenger conveyor out of service, and cover plate or the step 52 of entrance 51a are taken advantage of in dismounting.Therefore, may cause apparatus of passenger conveyor can not use for a long time, in the station of the large percentage that the passenger that especially apparatus of passenger conveyor carries out transports, affect significantly sometimes passenger's convenience.
On the other hand, when the magnet stopper that uses the first embodiment to the three embodiment is braked the electrical motor of actuating device 53, owing to not needing to the wearing and tearing of brake lining 11a, 11b are carried out Inspection and adjusted operation, therefore there is no need to make apparatus of passenger conveyor out of service.
And, also can the guidance panel 55 that is provided with key switch etc. of apparatus of passenger conveyor or near it, arrange by measure the 3rd embodiment housing position and indirectly measure brake lining 11a, 11b abrasion loss sensor lead-out terminal or as a kind of brake lining 11a, 11b that export expression the 3rd embodiment of this sensor, reached the lead-out terminal of limit switch of the information of wear limit.By adopting this structure, do not need the cover plate of opening gangway 51a namely not need to make the long-time output that just can obtain sensor or limit switch out of service of apparatus of passenger conveyor.
In addition, also can possess the not shown Department of Communication Force outside of the output of the output of described sensor or described limit switch and apparatus of passenger conveyor being communicated by communication line.By adopting this structure, for example can the wear state of brake lining be measured and be detected at service center, owing to need to not making apparatus of passenger conveyor out of service in order to carry out this operation completely, therefore further improve passenger's convenience.
In addition,, in Figure 17, as an example of apparatus of passenger conveyor, the escalator of take is illustrated as example, but can be also electronic passage as apparatus of passenger conveyor.In addition, magnet stopper of the present invention not only can be used in apparatus of passenger conveyor, also can in elevator, crane and lathe etc., use.
Above embodiments of the invention are illustrated, and the structure being illustrated in above-mentioned each an embodiment example only, the present invention can carry out suitable change in the scope that does not depart from its technological thought.
Claims (11)
1. a magnet stopper, this magnet stopper possesses: brake disc, it is usingd and can be supported on the first S. A. as the S. A. of electrical motor along axially movable mode; Armature, it is pressed to described brake disc by the first Compress Spring; Brake lining, it is configured between described brake disc and described armature, and for generation of braking force; And electromagnet, it overcomes described the first Compress Spring and attracts described armature, it is characterized in that,
Described magnet stopper possesses:
Housing, it takes in described electromagnet; Guide pin, it is fixed on the shell of described magnet stopper, and described housing is supported to can moving axially along described the first S. A.; Limiting pin, it is fixed on described housing, and by between described electromagnet and described armature, described the first S. A. axially on distance limit within the limits prescribed; And position retaining member, its when braking is removed to described electromagnet described the first S. A. axially on position keep, and remove the maintenance of described position when braking.
2. magnet stopper according to claim 1, is characterized in that,
Described position retaining member comprises tooth bar, the second S. A., grab and the second Compress Spring, described tooth bar is located at described guide pin, described the second S. A. is located at described housing, described grab is supported to can be around described the second S. A. rotation, and around described the second S. A. rotation, mesh with described tooth bar when being attracted by described electromagnet, described the second Compress Spring is located at described housing, and in the direction separated with described tooth bar to the described grab application of force.
3. magnet stopper according to claim 2, is characterized in that,
Described grab and described the second Compress Spring are provided with many groups in mode independent of each other, described many group grabs described the first S. A. axially on interval different from the tooth pitch of the tooth of described tooth bar.
4. magnet stopper according to claim 1, is characterized in that,
Described position retaining member comprises tooth bar, engagement piece and limited part, described tooth bar is located at described guide pin, described engagement piece is supported on described housing in the mode that can move on the radial direction of described the first S. A., and with described tooth bar engagement, described limited part is supported on described housing in the mode that can move up at the axle of described the first S. A., and when being attracted by described electromagnet, described engagement piece is pressed to described tooth bar.
5. magnet stopper according to claim 4, is characterized in that,
Described engagement piece and described limited part are provided with many groups in mode independent of each other, described many group engagement pieces described the first S. A. axially on interval different from the tooth pitch of the tooth of described tooth bar.
6. magnet stopper according to claim 4, is characterized in that,
Described position retaining member has the 3rd Compress Spring, and the 3rd Compress Spring is located at described housing, in the direction separated with described electromagnet to the described limited part application of force.
7. magnet stopper according to claim 1, is characterized in that,
Described magnet stopper has the sensor of the position of measuring described housing.
8. magnet stopper according to claim 7, is characterized in that,
Described sensor is limit switch, whether arrives the position of regulation for detection of the position of described housing.
9. an apparatus of passenger conveyor, it possesses the step that moves in circles between gangway, the railing for driving the electrical motor of described step, the magnet stopper that described electrical motor is braked and arranging along the moving direction of described step,
Described apparatus of passenger conveyor is characterised in that,
Described magnet stopper is the magnet stopper described in any one in claim 1 to 8.
10. apparatus of passenger conveyor according to claim 9, is characterized in that,
Described apparatus of passenger conveyor has the guidance panel of being located at described railing,
Described magnet stopper is the magnet stopper described in claim 7 or 8,
Described apparatus of passenger conveyor has for exporting the terminal of the output of described sensor at described guidance panel.
11. apparatus of passenger conveyor according to claim 9, is characterized in that,
Described magnet stopper is the magnet stopper described in claim 7 or 8,
Described apparatus of passenger conveyor has the Department of Communication Force to communication external by the output of described sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012200071A JP5841923B2 (en) | 2012-09-12 | 2012-09-12 | Electromagnetic brake and passenger conveyor equipped with the same |
| JP2012-200071 | 2012-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103663075A true CN103663075A (en) | 2014-03-26 |
| CN103663075B CN103663075B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310343207.4A Active CN103663075B (en) | 2012-09-12 | 2013-08-08 | Magnet stopper and there is the apparatus of passenger conveyor of this magnet stopper |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5841923B2 (en) |
| CN (1) | CN103663075B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516331A (en) * | 2017-09-20 | 2019-03-26 | 奥的斯电梯公司 | Sure brake system for elevator |
| CN110118032A (en) * | 2019-05-17 | 2019-08-13 | 江西阿兰德金融安防有限公司 | A kind of door lifter positioned using absolute value encoder |
| CN112628322A (en) * | 2019-10-08 | 2021-04-09 | 丰田自动车株式会社 | Electromagnetic brake device |
| CN113864376A (en) * | 2021-10-27 | 2021-12-31 | 曲阜天博汽车制动器有限公司 | Formula preparation process and device for enhanced polishing and burnishing base composite friction material and friction lining |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07187551A (en) * | 1993-12-27 | 1995-07-25 | Toshiba Corp | Disc brake for hoisting machine |
| CN101003352A (en) * | 2006-01-20 | 2007-07-25 | 常熟市电梯曳引机厂有限公司 | Self float type electromagnetic brake |
| CN202054520U (en) * | 2011-05-05 | 2011-11-30 | 抚顺市特种设备监督检验所 | High-efficiency and energy-saving escalator driving device |
| JP2012021622A (en) * | 2010-07-16 | 2012-02-02 | Mitsubishi Electric Corp | Braking apparatus of driving machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS504483A (en) * | 1972-10-16 | 1975-01-17 | ||
| JPS6281736U (en) * | 1985-11-07 | 1987-05-25 | ||
| JPS62102034U (en) * | 1985-12-18 | 1987-06-29 | ||
| JPS63115639U (en) * | 1987-01-22 | 1988-07-26 | ||
| FI85907C (en) * | 1990-03-13 | 1992-06-10 | Kone Oy | Electromagnetic brake |
| JPH1053385A (en) * | 1996-08-09 | 1998-02-24 | Toshiba Corp | Disc brake for hoist |
| JP2010064816A (en) * | 2008-09-09 | 2010-03-25 | Mitsubishi Electric Corp | Passenger conveyer |
-
2012
- 2012-09-12 JP JP2012200071A patent/JP5841923B2/en active Active
-
2013
- 2013-08-08 CN CN201310343207.4A patent/CN103663075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07187551A (en) * | 1993-12-27 | 1995-07-25 | Toshiba Corp | Disc brake for hoisting machine |
| CN101003352A (en) * | 2006-01-20 | 2007-07-25 | 常熟市电梯曳引机厂有限公司 | Self float type electromagnetic brake |
| CN100554129C (en) * | 2006-01-20 | 2009-10-28 | 苏州通润驱动设备股份有限公司 | Self float type electromagnetic brake |
| JP2012021622A (en) * | 2010-07-16 | 2012-02-02 | Mitsubishi Electric Corp | Braking apparatus of driving machine |
| CN202054520U (en) * | 2011-05-05 | 2011-11-30 | 抚顺市特种设备监督检验所 | High-efficiency and energy-saving escalator driving device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516331A (en) * | 2017-09-20 | 2019-03-26 | 奥的斯电梯公司 | Sure brake system for elevator |
| US11242220B2 (en) | 2017-09-20 | 2022-02-08 | Otis Elevator Company | Safety braking systems for elevators |
| CN110118032A (en) * | 2019-05-17 | 2019-08-13 | 江西阿兰德金融安防有限公司 | A kind of door lifter positioned using absolute value encoder |
| CN112628322A (en) * | 2019-10-08 | 2021-04-09 | 丰田自动车株式会社 | Electromagnetic brake device |
| CN112628322B (en) * | 2019-10-08 | 2022-07-22 | 丰田自动车株式会社 | Electromagnetic brake device |
| CN113864376A (en) * | 2021-10-27 | 2021-12-31 | 曲阜天博汽车制动器有限公司 | Formula preparation process and device for enhanced polishing and burnishing base composite friction material and friction lining |
| CN113864376B (en) * | 2021-10-27 | 2024-04-12 | 曲阜天博汽车制动器有限公司 | Process and device for preparing reinforced grinding machine composite friction material and friction lining formula |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103663075B (en) | 2015-12-02 |
| JP2014055620A (en) | 2014-03-27 |
| JP5841923B2 (en) | 2016-01-13 |
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