CN103663075B - Magnet stopper and there is the apparatus of passenger conveyor of this magnet stopper - Google Patents
Magnet stopper and there is the apparatus of passenger conveyor of this magnet stopper Download PDFInfo
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- CN103663075B CN103663075B CN201310343207.4A CN201310343207A CN103663075B CN 103663075 B CN103663075 B CN 103663075B CN 201310343207 A CN201310343207 A CN 201310343207A CN 103663075 B CN103663075 B CN 103663075B
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- magnet stopper
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- tooth bar
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Abstract
In magnet stopper, even if when brake lining there occurs wearing and tearing, the position between armature and electromagnet also automatically can be adjusted.A kind of magnet stopper, it possesses: housing, and it receives electromagnet; Directing pin, it is fixed on the shell of magnet stopper, and be supported to by housing can axially moving at motor reel; Limiting pin, it is fixed on housing, and by between electromagnet and armature, the restriction of the distance axially of motor reel within the limits prescribed; And position retaining member, it keeps the position axially of electromagnet at motor reel when brake release, removes the maintenance of position when 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
Usually, the electric tools being 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 rotated together with motor reel, be fixed on motor base shell, be supported in the mode that only can move axially along electrical motor shell armature, by armature towards brake disc press by pressing spring, be fixed on shell and overcome and to make by the pressing force of pressing spring armature leave the electromagnet of brake disc and to be arranged between brake disc and armature and the brake lining of any one in being fixed on both is formed.
Above-mentioned magnet stopper is used for producing braking force when electrical motor stops.The electric current being supplied to electromagnet is cut off in order to produce braking force.Now, owing to armature being pressed towards brake disc by pressing spring, therefore utilize friction force between brake lining by brake disc and motor reel relative to shell holding position.
On the other hand, when electrical motor rotates, remove the braking of magnet stopper.In order to brake off, the electric current of prescribed level is made to flow into electromagnet.Armature is attracted by the magnetic force produced from electromagnet by this electric current.Load due to this attraction is set to be greater than load when being pressed towards brake disc by armature by pressing spring, therefore, it is possible to make brake lining leave brake disc, does not produce friction force, thus brake disc and electrical motor become and can rotate.
As braking the relevant technology of the magnet stopper of disc type with braking drum-type, in patent documentation 1, provide the structure that one regulates the stroke of armature (plunger) automatically.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 8-59146 publication
; in common magnet stopper; owing in fact there is response time difference between electrical motor and magnet stopper, under the state therefore also do not stopped completely at electrical motor and produce friction force between brake lining, thus brake lining is caused to produce wearing and tearing.Due to these wearing and tearing, during braking, armature is near brake disc, namely increases the distance between armature and electromagnet, thus produces following two problems.
First problem is, produces the situation that temporary transient drg is towed when brake release starts, and makes the advance rate of brake pad wear be that acceleration/accel shape increases.Below its reason is described.Square being inversely proportional to of the magnetic force produced by electromagnet and distance.Therefore, along with brake lining is worn and torn, the distance between electromagnet and armature becomes large, attracts the magnetic force needed for armature to become large to overcome by pressing spring.Further, at electromagnet there is operating lag in place, and As time goes on the magnetic force produced by electromagnet present and increase and converge on the trend of certain value.Therefore, it is elongated to produce the time attracting magnetic force needed for armature to spend.Like this, after electrical motor starts rotation, armature is still pressed spring press, produces the towing of drg.This towing becomes the reason that brake lining produces wearing and tearing, and causes the distance between electromagnet and armature to become large further, and repeats above-mentioned chain.It should be noted that the distance between armature and electromagnet reaches after more than certain distance, just cannot produce the magnetic force needed for attraction, cause armature cannot be attracted by electromagnet, namely becoming cannot brake off.
Second Problem is, due to brake start time armature to be pressed the distance of spring press elongated, therefore the moving velocity of armature strengthens, and brake lining is collided with larger speed, thus causes noise to become large.
In existing magnet stopper, as the countermeasure solved the problem, need to check the abrasion loss of brake lining within the shorter cycle, and distance when adjustment is braked as required between armature and electromagnet.
And, use in the machinery of above-mentioned magnet stopper at elevator, escalator, crane and lathe etc., in order to carry out above-mentioned maintenance and adjustment operation, need to make machinery out of service, especially, if the escalator played in passenger's transport in the station of great role is out of service, the convenience of passenger significantly can be hindered.
In addition, Patent Document 1 discloses the technology that one regulates the stroke of armature (plunger) automatically, because the technology disclosed in patent documentation 1 is the technology automatically regulating the moving range of armature under the state be fixed at winding, although therefore above-mentioned Second Problem can be solved, but exist along with when the position of armature departing from winding 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 if when brake lining there occurs wearing and tearing, also automatically can adjust the position of armature and electromagnet.
Solution
Magnet stopper of the present invention such as has: brake disc, and it is supported on the first S. A. of the S. A. as electrical motor in the mode that can move in the axial direction; 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 first Compress Spring and attracts described armature, and it is characterized in that, described magnet stopper possesses: housing, and it receives described electromagnet; Directing pin, it is fixed on the shell of described magnet stopper, and be supported to by described housing can moving axially along described first S. A.; Limiting pin, it is fixed on described housing, and by between described electromagnet and described armature, the distance axially of described first S. A. limits within the limits prescribed; And position retaining member, it keeps the position axially of described electromagnet at described first S. A. when brake off, and removes the maintenance of described position when braking.
In addition, apparatus of passenger conveyor of the present invention such as possess to carry out moving in circles between gangway step, for driving the electrical motor of described step, keep the magnet stopper of described step position when described electrical motor stops, the handrail that holding for passenger and for guiding the railing of described handrail, the feature of described apparatus of passenger conveyor is, uses above-mentioned magnet stopper as described magnet stopper.
Invention effect
According to the present invention, even if when brake lining there occurs wearing and tearing, also automatically can adjust the position of armature and electromagnet.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the first embodiment, situation when braking under representing state wearing and tearing not occurring in brake lining.
Fig. 2 is the details figure at position near the tooth bar shown in Fig. 1 and grab.
Fig. 3 is the cutaway view of the first embodiment, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.
Fig. 4 is the details figure at position near the tooth bar shown in Fig. 3 and grab.
Fig. 5 is the cutaway view of magnet stopper of the prior art, situation when braking under representing state wearing and tearing not occurring in brake lining.
Fig. 6 is the cutaway view of magnet stopper of the prior art, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.
Fig. 7 is the cutaway view of magnet stopper of the prior art, situation when braking under representing the state that there occurs wearing and tearing in brake lining.
Fig. 8 is the cutaway view of magnet stopper of the prior art, carries out situation during brake release under representing the state that there occurs wearing and tearing in brake lining.
Fig. 9 is the cutaway view of the first embodiment, situation when braking under representing the state that there occurs wearing and tearing in brake lining.
Figure 10 is the cutaway view of the first embodiment, carries out situation during brake release under representing the state that there occurs wearing and tearing in brake lining.
Figure 11 is the cutaway view of the second embodiment, situation when braking under representing state wearing and tearing not occurring in brake lining.
Figure 12 is the details figure at position near the tooth bar shown in Figure 11 and engagement piece.
Figure 13 is the figure observed from the A direction of Figure 12.
Figure 14 is the cutaway view of the second embodiment, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.
Figure 15 is the details figure at position near the tooth bar of Figure 14 and engagement piece.
Figure 16 is the details figure at position near the 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: directing 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: axle portion, 12b: front end, 12c: head, 13: electromagnet, 14: grab S. A., 15: release spring, 16: grab, 16a: front end, bar portion, 16b: claw, 16c: bar portion, 17: by pressing spring, 18: limited part, 18a: dip plane, 18b: axle portion, 19: release spring, 20: engagement piece, 20a: dip plane, 20b: groove portion, 20c: crown, 26: directing pin, 29: armature, 30: housing, 37: by pressing spring, 46: directing pin, 50: housing, 51a, 51b: gangway, 52: step, 53: actuating device, 54: Machine Room, 55: guidance panel, 56: railing
Detailed description of the invention
Referring to accompanying drawing, embodiments of the invention are described.It should be noted that in each accompanying drawing and each embodiment, identical Reference numeral is marked to same or similar inscape, and omits the description.
First embodiment
Fig. 1 is the cutaway view of the magnet stopper of the first embodiment, situation when braking under representing state wearing and tearing not occurring in brake lining.Fig. 2 is the details figure at position near the tooth bar shown in Fig. 1 and grab.
In a first embodiment, the shell 1 of magnet stopper is the part for installing motor stator, and it is fixed on pedestal.Be fixed with bearing 2 at shell 1, be provided with the rotor of electrical motor, be supported to rotate by this bearing 2 as the motor reel 3 of the S. A. of electrical motor.Be processed with spline 4 at motor reel 3, the brake disc 5 as disc-shaped component is supported to by this spline 4 can axially moving at motor reel 3.In addition, centered by motor reel 3, many directing pin 6 are circumferentially fixed with at shell 1.Directing pin 6 is while being fixed adapter plate 7 and tooth bar 8, and armature 9 and housing 10 being supported to can axially moving at motor reel 3.Adapter plate 7 has the circular ring-shaped member in hole at center in order to avoid interfering with motor reel 3, is fixed with the brake lining 11a as friction material at the position by brake disc 5 side of adapter plate 7.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 hole portion 9a supplying the axle portion 12a of limiting pin 12 described later to pass, and is fixed with brake lining 11b at the position by brake disc 5 side of armature 9.
Be fixed with limiting pin 12, electromagnet 13 and grab S. A. 14 at housing 10, 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 axle portion 12a runs through the hole portion 9a of armature 9, and the diameter of head 12c is greater than the diameter of hole portion 9a.Grab S. A. 14 is for grab 16 being supported to the part that can rotate around it.Release spring 15 is Compress Springs, and housing 10 is fixed in its one end, the bar portion front end 16a of other end pressing grab 16.Grab 16 is ferromagnet parts, across grab S. A. 14, has bar portion front end 16a, have claw 16b the opposing party a side.Be formed at tooth bar 8 and can engage with claw 16b and carry out the profile of tooth that engages.Be provided with between tooth bar 8 and armature 9 as Compress Spring by pressing spring 17, directing 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.Position retaining member is formed by tooth bar 8, grab S. A. 14, release spring 15, grab 16.
As depicted in figs. 1 and 2, when braking, owing to not having electric current to flow into electromagnet 13, therefore by pressing spring 17, armature 9 is pushed towards brake disc 5 and adapter plate 7.Now, because armature 9 and brake disc 5 can axially moving at motor reel 3, therefore brake disc 5 is sandwiched between brake lining 11a, 11b, between brake lining 11a, 11b and brake disc 5, produce friction force.Now, armature 9 is subject to the restriction of directing pin 6 around the rotation of motor reel 3, and because directing pin 6 and adapter plate 7 are fixed by the shell 1 being fixed on pedestal, therefore motor reel 3 is braked.
In addition, grab 16 is subject to release spring 15 and presses, and its claw 16b rotates towards the direction leaving tooth bar 8.Its result, position retaining member to housing 10, be fixed on the limiting pin 12 of housing 10, the maintenance of position axially of the motor reel 3 of electromagnet 13 removed, head 12c is attracted by armature 9 and moves towards shell 1, and the housing 10 receiving electromagnet 13 also carries out identical movement.That is, the distance axially of the motor reel 3 between electromagnet 13 and armature 9 is to be limited within the limits prescribed for the upper limit by the specified value of the degree of depth of hole portion 9a and the length legislations of axle portion 12a.
Fig. 3 is the cutaway view of the first embodiment, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.Fig. 4 is the details figure at position near the tooth bar shown in Fig. 3 and grab.
When removing the braking of magnet stopper, making electric current flow into electromagnet 13, therefore overcoming respectively as the armature 9 of ferromagnet part and the bar portion 16c of grab 16 and move towards electromagnet 13 by the load of pressing spring 17, release spring 15.Now, due to the load for making grab 16 leave the release spring 15 of tooth bar 8 with for generation of braking force by very little compared with the load of pressing spring 17, therefore bar portion 16c first contacts with electromagnet 13, and claw 16b engages with tooth bar 8 and is fixed the position of housing 10.After this, armature 9 is attracted by electromagnet 13, and brake lining 11b leaves brake disc 5, does not produce friction force, therefore removed the braking of motor reel 3 owing to becoming between brake lining 11b and brake disc 5.And, now housing 10, be fixed on the limiting pin 12 of housing 10, the position axially of the motor reel 3 of electromagnet 13 kept by position retaining member, the distance axially of the motor reel 3 therefore between electromagnet 13 and armature 9 is in lower limit (being now 0).
Below the problem relevant with the wearing and tearing of brake lining existed in existing magnet stopper is described.
Fig. 5 is the cutaway view of magnet stopper of the prior art, situation when braking under representing state wearing and tearing not occurring in brake lining.
Limiting pin 12 and position retaining member are not set in existing magnet stopper.Armature 29 is can be supported on set pin 26 in the mode of the axially movement of motor reel 3, and the housing 30 of fixed electromagnet 13 is fixed in directing pin 26, being arranged between housing 30 and armature 29 by pressing spring 37 as Compress Spring.When braking, owing to not having electric current to flow into electromagnet 13, therefore by pressing spring 37, armature 29 being pushed towards brake disc 5 and adapter plate 7, producing braking force thus.Now, because housing 30 is fixed in directing 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, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.When brake off, owing to making electric current flow into electromagnet 13, therefore overcome as the armature 29 of ferromagnet part and move towards electromagnet 13 by the load of pressing spring 37.Its result, brake lining 11b leaves brake disc 5, brakes and is removed.
Fig. 7 is the cutaway view of magnet stopper of the prior art, situation when braking under representing the state that there occurs wearing and tearing in brake lining.When brake lining 11a, 11b create wearing and tearing, be pressed the armature 29 of spring 37 pressing 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 produced due to electromagnet and the distance from electromagnet, therefore when being attracted armature 29 by electromagnet 13, when namely removing braking, needs the electromagnet that can produce larger magnetic force.As mentioned above, because the response of electromagnet is delayed, it is elongated to produce this time needed for larger magnetic force, and namely the response time of magnet stopper is elongated, therefore likely of short duration pulling drg.
Fig. 8 is the cutaway view of magnet stopper of the prior art, carries out situation during brake release under representing the state that there occurs wearing and tearing in brake lining.By comparing known with Fig. 6, distance between brake lining 11b and brake disc 5 becomes large, when braking in this condition, the time that armature 29 carries out movement under the pushing by pressing spring 37 is elongated, the collision velocity of brake lining 11b and brake disc 5 is become greatly, noise may be made to become large.In addition, because the miles of relative movement of armature 29 is elongated, the time (namely the response time of magnet stopper) needed for therefore braking is elongated, and when there being External Force Acting in motor reel 3, motor reel 3 likely unexpectedly rotates.
Below, the automatic adjustment of the armature 9 when there occurs wearing and tearing to the brake lining 11b of the first embodiment and the position of electromagnet 13 is described.
Fig. 9 is the cutaway view of the first embodiment, situation when braking under representing the state that there occurs wearing and tearing in brake lining.When braking, position due to position holding device keeps being removed, therefore be subject to by the pressing of pressing spring 17 towards while brake disc 5 and adapter plate 7 movement at armature 9, housing 10 also moves under the effect of limiting pin 12, thus this interval that the interval between armature 9 and electromagnet 13 and brake lining 11a, 11b do not occur under state shown in the state of wearing and tearing and Fig. 1 is identical.Its result, the miles of relative movement of the magnetic force needed for brake off and armature 9 is also identical with miles of relative movement with the magnetic force under the state not occurring to wear and tear, and therefore drg can not occur by the situation of of short duration towing.Further, do not need to check the abrasion loss of electronic pad 11b, do not need to carry out adjustment operation according to check result yet, and the magnetic force produced by electromagnet 13 and the consumption electric energy produced needed for magnetic force can be reduced.
It should be noted that, make by the total length of pressing spring 17 elongated by the movement of armature 9, the load occurred by pressing spring 17 declines, to this, when carrying out the design by the natural length of pressing spring 17, make the slippage of the load occurred by pressing spring 17 and brake lining do not occur under the state of wearing and tearing by very little compared with the generation load of pressing spring 17.When making the length of directing pin 6 long in order to ensure this natural length, also directing pin 6 can be divided into for install by pressing spring 17 the first directing pin and be used for installing the second directing pin of tooth bar 8 and arrange, thus reduce magnet stopper in the length axially of motor reel 3.
Figure 10 is the cutaway view of the first embodiment, carries out situation during brake release under representing the state that there occurs wearing and tearing in brake lining.When brake off, bar portion 16c is attracted by electromagnet 13, and claw 16b engages with tooth bar 8, comes holding position thus by position retaining member.Compared with there is not the state shown in the state of wearing and tearing and Fig. 3 with brake lining 11a, 11b, this clamped position is towards adapter plate 7 near the distance equal with total abrasion loss of brake lining 11a, 11b, and the interval under the state worn and torn in the interval between brake lining 11a, 11b and brake disc 5 and not occurring is identical.Its result, the speed that brake lining 11a during braking, 11b and brake disc 5 collide is also identical with situation about not occurring when wearing and tearing, and noise can not be caused to increase.
The magnet stopper of the present embodiment has: brake disc 5, and this brake disc 5 is supported on the motor reel 3 as the S. A. of electrical motor in the mode that can move in the axial direction; Armature 9, this armature 9 is pressed spring 17 and presses towards brake disc 5; Brake lining 11b, this brake lining 11b are 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 storage electromagnet 13; Directing pin 6, this directing pin 6 is fixed on the shell 1 of magnet stopper 13, and be supported to by housing 10 can axially moving at motor reel 3; Limiting pin 12, this limiting pin 12 is fixed on housing 10, and by limiting within the limits prescribed in the distance axially of motor reel 3 between electromagnet 13 and armature 9; And position retaining member, this position retaining member keeps the position axially of electromagnet 13 at motor reel 3 when brake off, removes the maintenance to this position when braking.Because magnet stopper has above-mentioned component, even if thus when brake lining there occurs wearing and tearing, also automatically can adjust the position of armature 9 and electromagnet 13.
Thus, distance during braking between armature 9 and electromagnet 13 can not become large because of the wearing and tearing of brake lining, therefore has until the wearing and tearing of brake lining reach the advantage that operating limit does not need to be serviced operation.
Owing to described distance can be remained on initial condition, therefore also have the following advantages.First, owing to the collision velocity of brake disc during braking and brake lining can also be remained on initial condition, therefore there is the advantage that can prevent noise from increasing.Secondly, owing to the response time of magnet stopper can also be remained on initial condition, therefore have and drg advance rate that is towed, that make brake pad wear can be suppressed to keep certain, the advantage of the life prediction precision of brake lining can be improved.Further, be greater than the necessary size of initial condition owing to there is no need the attractive force of electromagnet to armature to be set to when described distance increases, therefore have and can select the advantage that armature attractive force is little, namely consume the little electromagnet of electric energy.
And, concerning elevator, escalator, crane and lathe etc. use the machinery of magnet stopper of the present invention, owing to there is no need to overhaul and adjust operation to the wearing and tearing of brake lining and out of service, thus there is the advantage of the convenience that can improve user.
It should be noted that, in a first embodiment, as position retaining member, show by the tooth bar 8 being located at directing pin 6, be located at housing 10 grab S. A. 14, be supported to rotate around grab S. A. 14 and rotate around grab S. A. 14 when being attracted by electromagnet 13 and the grab 16 engaged with tooth bar 8 and be located at housing 10 and the example that forms of the release spring 15 on the direction be separated with tooth bar 8, grab 16 exerted a force.
Second embodiment
Figure 11 is the cutaway view of the second embodiment, situation when braking under representing state wearing and tearing not occurring in brake lining.Figure 12 is the details figure at position near the tooth bar shown in Figure 11 and engagement piece.Figure 13 is the figure observed from the A direction of Figure 12.In a second embodiment, the structure of position retaining member is different from the first embodiment.Be described mainly for the part different from the first embodiment below, and omit the explanation of repeating part.
In a second embodiment, position retaining member is formed by tooth bar 8, limited part 18 and engagement piece 20.It should be noted that position retaining member also can possess release spring 19.
Directing pin 46 is fixed on shell 1, can axially moving at motor reel 3 for armature 9 and housing 50 being supported to, and is fixed tooth bar 8.Limited part 18 is ferromagnet parts, is supported in housing 50, utilizes release spring 19 to exert a force to limited part 18 on the direction left from electromagnet 13 in the mode can carrying out movement along the axis of motor reel 3.Release spring 19 is Compress Springs, and housing 50 is fixed in its one end, and as mentioned above, the other end is connected with limited part 18.Engagement piece 20 is the mode of movement on the radial direction of motor reel 3 can be supported on housing 50, and engagement piece 20 possesses the dip plane 20a parallel with the dip plane 18a of limited part 18, the groove portion 20b that passes for the axle portion 18b of the limited part 18 and crown 20c of shape engaged with the tooth of tooth bar 8.
As shown in Figure 12 and Figure 13, when braking, by release spring 19, limited part 18 is moved towards the direction leaving electromagnet 13, to make the crown 20c of engagement piece make engagement piece 20 towards the direction displacement leaving tooth bar 8 along the mode of the mountain peak 8a movement of the tooth of tooth bar 8, the axle portion 18b of limited part 18 is made to enter the groove portion 20b of engagement piece 20.Now, position retaining member is removed the maintenance of position, and the wearing and tearing that housing 50 can correspond to brake lining 11a, 11b are moved.
Figure 14 is the cutaway view of the second embodiment, carries out situation during brake release under representing state wearing and tearing not occurring in brake lining.Figure 15 is the details figure at position near the tooth bar of Figure 14 and engagement piece.
When brake off, electric current is made to 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 groove portion of the tooth of tooth bar 8.Because engagement piece 20 to be subject to the restriction of housing 50 in the movement axially of motor reel 3, therefore 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 very little compared with the load by pressing spring 17, therefore limited part 18 is first attracted by electromagnet 13 compared with armature 9.Thus, engage with tooth bar 8 at engagement piece 20 and after being fixed the position of housing 50, armature 9 is just attracted by electromagnet 13.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 is made up of tooth bar 8, engagement piece 20 and limited part 18, directing pin 46 is located at by this tooth bar 8, this engagement piece 20 is the mode of movement on the radial direction of motor reel 3 can be supported on housing 50, and engage with tooth bar 8, this limited part 18 can be supported on housing 50 in the mode of the axially movement of motor reel 3, and is attracted by electromagnet 13 and is pressed towards tooth bar 8 by engagement piece 20.In addition, position retaining member also can be set to also has release spring 19, and housing 50 is located at by this release spring 19, exerts a force to limited part 18 in the direction leaving electromagnet 13.
Also can obtain the effect identical with the first embodiment in a second embodiment, and the feature of the second embodiment is, owing to carrying out support housing 50, therefore, it is possible to easily improve supporting rigidity by the shearing of the engagement piece 20 between tooth bar 8 and housing 50.
In a second embodiment, suitable by the degree of balance of the friction force between the dip plane 20a of the load of pressing spring 17, the friction force between tooth bar 8 and the crown 20c of engagement piece 20, the friction force between engagement piece 20 and housing 50, engagement piece and the dip plane 18a of limited part 18 and the friction force between limited part 18 and housing 50, only relying on the occasion that just limited part 18 can be made to separate with electromagnet 13 when braking by the load of pressing spring 17, also release spring 19 can be omitted.
3rd embodiment
In the third embodiment, the various variation of the first embodiment and the second embodiment are described.
Figure 16 is the details figure at position near the tooth bar in the 3rd embodiment.As an example of variation, in the first embodiment and the second embodiment, such as, shown in the example of Figure 16, also can arrange and to be configured with the interval p ' different with the tooth pitch p of tooth of tooth bar 8 and each other can the claw 16b of multiple grabs 16 of independent displacement or the crown 20c of engagement piece 20.Specifically, in the occasion of the first embodiment, grab 16 and release spring 15 are provided with many groups in mode independent of each other, and are arranged to different from the tooth pitch of the tooth of tooth bar 8 by organizing the interval axially of grab 16 at motor reel 3 more.In the occasion of the second embodiment, engagement piece 20 and limited part 18 arrange many groups in mode independent of each other, and are arranged to different from the tooth pitch of the tooth of tooth bar 8 by organizing the interval axially of engagement piece 20 at motor reel 3 more.Now, with the interval being less than tooth pitch p, housing 10 or housing 50 can be fixed on tooth bar 8.
In addition, as other examples of variation, in order to make to separate suitable distance between brake lining 11b with brake disc 5 when brake off, also between armature 9 and electromagnet 13, can arrange not shown Compress Spring along the axis of motor reel 3, distance when making to brake between armature 9 and electromagnet 13 becomes by limiting pin 12 set upper limit value.
In addition, as another other examples of variation, the not shown sensor of the amount of movement for measuring housing 10 or housing 50 can be set in directing pin 6 or tooth bar 8, thus indirectly can measure the abrasion loss of brake lining 11a, 11b.Further, limit switch also can be used as this sensor, when the position of housing reaches the position of regulation, export and represent that brake lining 11 has reached the information of wear limit, thus can simplified structure.By adopting said structure, the information for predicting the period reaching wear limit can being obtained easily, brake lining 11 can be detected and whether reach wear limit.
4th embodiment
Be described employing the embodiment of the first embodiment to the apparatus of passenger conveyor of the magnet stopper of the 3rd embodiment referring to Figure 17.Figure 17 is the overall diagram of the apparatus of passenger conveyor in the 4th embodiment.Apparatus of passenger conveyor has between two gangways 51a, 51b, to carry out the step 52 moved in circles and the railing 56 arranged along the moving direction of step 52, for the passenger taken on this step 52 to be transported to the equipment of outlet from entrance.Drive the actuating device 53 making it move in circles to be positioned at the Machine Room 54 below the 51a of gangway or the formation of electrical motor, retarder and the magnet stopper below step 52 primarily of being arranged on to step 52.
When using existing magnet stopper, in order to overhaul magnet stopper and maintain operation, need to make apparatus of passenger conveyor out of service, and dismounting takes into cover plate or the step 52 of mouthful 51a.Therefore, apparatus of passenger conveyor may be caused can not to 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 the convenience of passenger sometimes significantly.
On the other hand, when use first embodiment is braked to the electrical motor of magnet stopper to actuating device 53 of the 3rd embodiment, owing to not needing to carry out Inspection and adjustment operation to the wearing and tearing of brake lining 11a, 11b, so there is no necessity and make apparatus of passenger conveyor out of service.
Further, also can the guidance panel 55 being provided with key switch etc. of apparatus of passenger conveyor or be arranged through near it measurement the 3rd embodiment housing position and indirectly measure the lead-out terminal that brake lining 11a, the lead-out terminal of sensor of abrasion loss of 11b or the brake lining 11a, the 11b that export expression the 3rd embodiment as a kind of of this sensor have reached the limit switch of the information of wear limit.By adopting this structure, the cover plate opening gangway 51a is not needed namely not need to make the apparatus of passenger conveyor output that just can obtain sensor or limit switch out of service for a long time.
In addition, also can possess and the output of described sensor or the output of described limit switch and the outside of apparatus of passenger conveyor are carried out by communication line the not shown Department of Communication Force that communicates.By adopting this structure, such as, can carrying out measurement and detection at service center to the wear state of brake lining, owing to not needing to make apparatus of passenger conveyor out of service to carry out this operation completely, therefore improving the convenience of passenger further.
In addition, in fig. 17, as an example of apparatus of passenger conveyor, be illustrated for escalator, but also can be electric channel as apparatus of passenger conveyor.In addition, magnet stopper of the present invention not only can use in apparatus of passenger conveyor, also can use in elevator, crane and lathe etc.
Above embodiments of the invention are illustrated, and the structure be illustrated in each an embodiment above-mentioned only example, the present invention can carry out suitable change in the scope not departing from its technological thought.
Claims (11)
1. a magnet stopper, this magnet stopper possesses: brake disc, and it is supported on the first S. A. of the S. A. as electrical motor in the mode that can move in the axial direction; 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 first Compress Spring and attracts described armature, it is characterized in that,
Described magnet stopper possesses:
Housing, it receives described electromagnet; Directing pin, it is fixed on the shell of described magnet stopper, and be supported to by described housing can moving axially along described first S. A.; Limiting pin, it is fixed on described housing, and by between described electromagnet and described armature, the distance axially of described first S. A. limits within the limits prescribed; And position retaining member, it keeps the position axially of described electromagnet at described first S. A. when brake release, and removes 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 directing pin is located at by described tooth bar, described second S. A. is located at described housing, described grab is supported to rotate around described second S. A., and rotate around described second S. A. when being attracted by described electromagnet and engage with described tooth bar, described second Compress Spring is located at described housing, and exerts a force to described grab on the direction be separated with described tooth bar.
3. magnet stopper according to claim 2, is characterized in that,
Described grab and described second Compress Spring are provided with many groups in mode independent of each other, and described many group grabs are different from the tooth pitch of the tooth of described tooth bar at the interval axially of described first S. A..
4. magnet stopper according to claim 1, is characterized in that,
Described position retaining member comprises tooth bar, engagement piece and limited part, described directing pin is located at by described tooth bar, described engagement piece is the mode of movement on the radial direction of described first S. A. can be supported on described housing, and engage with described tooth bar, described engagement piece can be supported on described housing in the mode of the axially movement of described first S. A., and is pressed to described tooth bar when being attracted by described electromagnet by described limited part.
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, and described many group engagement pieces are different from the tooth pitch of the tooth of described tooth bar at the interval axially of described first S. A..
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, and the direction be separated with described electromagnet exerts a force to described limited part.
7. magnet stopper according to claim 1, is characterized in that,
Described magnet stopper has the sensor of the position measuring described housing.
8. magnet stopper according to claim 7, is characterized in that,
Described sensor is limit switch, and whether the position for detecting described housing arrives the position of regulation.
9. an apparatus of passenger conveyor, it possess to carry out moving in circles between gangway step, for driving the electrical motor of described step, magnet stopper that described electrical motor is braked and the railing arranged along the moving direction of described step,
The feature of described apparatus of passenger conveyor is,
Described magnet stopper is the magnet stopper according to any one of 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 being located at described railing,
Described magnet stopper is the magnet stopper described in claim 7 or 8,
Described apparatus of passenger conveyor has the terminal of the output for exporting 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 output of described sensor externally communicated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-200071 | 2012-09-12 | ||
| JP2012200071A JP5841923B2 (en) | 2012-09-12 | 2012-09-12 | Electromagnetic brake and passenger conveyor equipped with the same |
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| Publication Number | Publication Date |
|---|---|
| CN103663075A CN103663075A (en) | 2014-03-26 |
| CN103663075B true CN103663075B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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| Country | Link |
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| JP (1) | JP5841923B2 (en) |
| CN (1) | CN103663075B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3459890B1 (en) * | 2017-09-20 | 2024-04-03 | Otis Elevator Company | Health monitoring of 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 |
| JP7136058B2 (en) * | 2019-10-08 | 2022-09-13 | トヨタ自動車株式会社 | Electromagnetic brake device |
| 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 |
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| 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 |
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| 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 |
| JP3229098B2 (en) * | 1993-12-27 | 2001-11-12 | 株式会社東芝 | Disk brake for hoist |
| 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 |
| JP2012021622A (en) * | 2010-07-16 | 2012-02-02 | Mitsubishi Electric Corp | Braking apparatus of driving machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5841923B2 (en) | 2016-01-13 |
| JP2014055620A (en) | 2014-03-27 |
| CN103663075A (en) | 2014-03-26 |
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