CN102311065A - Electromagnetic disc brake with antifriction device - Google Patents
Electromagnetic disc brake with antifriction device Download PDFInfo
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- CN102311065A CN102311065A CN201110228459A CN201110228459A CN102311065A CN 102311065 A CN102311065 A CN 102311065A CN 201110228459 A CN201110228459 A CN 201110228459A CN 201110228459 A CN201110228459 A CN 201110228459A CN 102311065 A CN102311065 A CN 102311065A
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Abstract
The invention discloses an electromagnetic disc brake with an antifriction device, which comprises a stator shell, a coil, an armature, a fixing pin roll and two groups of friction disc components. The electromagnetic disc brake with the antifriction device is characterized in that the electromagnetic disc brake additionally comprises a friction plate and a fixed support, and the friction plate is connected with the stator shell through a friction plate connecting screw and a bushing and can move on the bushing in the axial direction for a micro distance; the fixed support is arranged between the friction plate and the armature, the fixed support is fixedly installed on the fixing pin roll, and gaps are kept between the fixed support and the friction plate as well as between the fixed support and the armature; and a resetting component which is used for keeping the friction plate away from the fixed support is arranged between the friction plate and the fixed support. The resetting component is adopted to be arranged between the fixed support and the friction plate to avoid mistaken friction between the friction disc and the brake disc of the electromagnetic disc brake when the electromagnetic disc brake is released, the braking effect, the safety of the electromagnetic disc brake with the antifriction device are improved, and the service life of the electromagnetic disc brake with the antifriction device is prolonged.
Description
Technical field
The present invention relates to a kind of electromagnetism disc brake; Relate in particular to a kind of avoid under the brake off state because of friction lining and brake disc between mistake friction damage the electromagnetism disc brake of the band chafing gear of friction lining, belong to the production field of electromagnetism butterfly drg.
Background technology
Magnet stopper is the mechanical device that utilizes power supply and spring to brake as the countershaft or the brake disc of propulsion source; Wherein, The magnet stopper that brake disc (brake disc is connected with the machine that needs braking such as the rotor of winch) is braked is commonly referred to as the electromagnetism disc brake, and its structure is: comprise stator case, coil, armature, pedestal and two groups of friction plate assemblies, said coil is installed in the said stator case; Said armature is installed in the end of said stator case near said coil through screw and Elastip pin; Said pedestal and said stator case are used screw attachment near an end of said armature, form the U-shaped unit, and this U-shaped unit can move on fixed pin shaft; Said fixed pin shaft one end is fixed on machinery (like the winch) support; The other end is unsettled, so the U-shaped unit forms a beam type structure on fixed pin shaft, and two friction plate assemblies are installed on respectively on said pedestal and the said armature; Each is organized said friction plate assembly and includes a friction lining, and two friction linings face to face; Central axial direction with said coil is an axial direction, and said pedestal can move by small distance on said axial direction, and said armature can move on said axial direction.Above-mentioned magnet stopper is mainly used on the weight-lifting equipment (like elevator, tower crane etc.), and supporting with it is winch.Along with the continuous quickening of China's urbanization, new building is also more and more, increasingly high to the requirement of weight-lifting equipment.As far as magnet stopper, the client is more and more tighter to the requirement of life-span, safety and the reliability of product, and energy-conservation, the comfort to product proposed clear and definite requirement simultaneously.
Above-mentioned electromagnetism butterfly working of brakes principle is: when coil electricity produces magnetic field; Magnetic line of force passes stator case and armature; And pass the air gap of stator case and armature residual gap, make the armature of band friction plate assembly break away from the brake disc of winch, thus with the stator case adhesive; Brake disc squeezes the friction lining realization disengaging of the friction plate assembly of opening pedestal one side simultaneously, and brake disc is realized rotating; When coil losing electricity; Coil magnetic field disappears; Torsion spring in the stator case promotes armature makes the friction lining of the friction plate assembly above it contact with brake disc, and the friction lining of the friction plate assembly of drive pedestal one side contacts with brake disc, and the brake disc in rotation is braked.
The defective of above-mentioned electromagnetism butterfly drg is: when brake off, the friction lining of armature one side breaks away from earlier (1), by force crowded the opening of the friction lining of pedestal one side is realized that both sides break away from by brake disc then; The mistake friction may take place with brake disc in friction lining like this; Thereby make the friction lining temperature build-up, influence the life-span and the braking effect of drg, accelerate the wearing and tearing of friction lining; Thereby increase the adjustment frequency of brake clearance; Cause the drg braking failure when serious, even burn drg and elevator, thereby cause safety problem.(2), designed the mounting hole that fixed pin shaft is passed in two very long being used on the pedestal of existing electromagnetism butterfly drg in order on fixed pin shaft, to move; Since will with the fixed pin shaft routing motion, the form and position tolerance accuracy requirement of this mounting hole is very high, after base body casting was accomplished, prior art was carried out the machine-shaping of this mounting hole with the processing mode of bore hole.Because this hole is very long, guarantee very high form and position tolerance accuracy requirement simultaneously again, therefore brought very big difficulty to processing.The result is that this mounting hole tooling cost is very high, and work efficiency is low, occurs off gauge even waste product easily simultaneously, is unfavorable for producing in enormous quantities and Product Cost Control.Simultaneously, in order to cooperate the slotted hole on the pedestal, fixed pin shaft is compelled to do very longly, and not only tooling cost is very high, and waste material.(3) at glancing impact, the friction lining of armature one side receives the brake disc tangential force to pass to stator through Elastip pin, passes to the joint bolt between pedestal and the stator by stator again; Pass to pedestal by joint bolt again, pass to fixed pin shaft by pedestal again, the transfer route that this power is transmitted is very long; Increased brake disc rigid shock to drg when being braked; The structural strength of drg receives bigger damage, has reduced the life-span of drg, and this tangential force is through the joint bolt between pedestal and the stator; Increase the risk of joint bolt stress deformation, can't guarantee the reliability and stability that pedestal connects with stator.(4) between stator case and the armature be rigid attachment, middle nothing buffering noise abatement element, drg is very big to the rigid shock of stator case at adhesive moment armature, causes drg noise when brake off very big; Friction lining contacts brake disc fast at glancing impact, so drg is also very big at the glancing impact noise, has a strong impact on the comfort of mechanical terminations user (like elevator customer).(5) in maloperation or when breaking down; Reach like the gap between sudden power or drg stator case and armature and to make armature can't be by the adhesive of coil magnetic field power the time; Friction lining is the braking with locked wheels dish always, if need brake off (need rise or descend like elevator, perhaps need renewal of facing, adjustment brake clearance etc.) this moment; All will bring very big difficulty, produce potential safety hazard when serious because drg is in braking mode always.(6) in the operational process of drg; Can occur brake disc and friction lining mistake unavoidably cooperates and causes strong friction intensification damage equipment or cause the fortuitous phenomena of fire; Existing drg does not provide corresponding safety guarantee; Make the safety performance of whole drg can not get further lifting, the development of restriction drg and application industry thereof.
Summary of the invention
The object of the invention provides a kind of electromagnetism butterfly drg with chafing gear with regard to being in order to address the above problem; This drg can avoid under the brake off state because of friction lining and brake disc between mistake friction damages friction lining, the advantage of also have life-saving, reduce noise, the mistake glancing impact being met an urgent need brake off.
In order to achieve the above object, the present invention has adopted following technical scheme:
The present invention includes stator case, coil, armature, fixed pin shaft, two groups of friction plate assemblies; The present invention also comprises friction plate and fixed support, said friction plate through friction plate joint bolt and lining and said stator case be linked together and the microspur that can on said lining, make axial direction move; Said fixed support is between said friction plate and said armature, and said fixed support is fixedly mounted on the fixed pin shaft, all remains with the gap between said fixed support and said friction plate and the said armature; Be provided with between said friction plate and the said fixed support and make said friction plate away from said support bracket fastened reposition element.
In the said structure, the effect of the pedestal in friction plate and the traditional electrical magnetic brake is the same, but himself structure and different with the connection structure of stator case.When brake off; The present invention makes friction plate away from fixed support through reposition element; Because fixed support can not move; Move to direction so be equivalent to friction plate, and the friction plate assembly of friction plate one side drive friction lining correspondingly moves to the direction away from brake disc, thereby realize the thorough disengaging of the friction lining and the brake disc of two friction plate assemblies away from brake disc.
Particularly; Be installed with stop screw through the jam nut that resets between said friction plate and the said fixed support; Said stop screw passes the spacing hole at said friction plate and/or said fixed support middle part; Said reposition element is positioned at said spacing hole, and said stop screw passes said reposition element.The convenient like this elasticity with reposition element makes friction plate away from fixed support.
More specifically, said reposition element can be spring or elastic caoutchouc or elastoplast, as long as it is just passable to have enough elasticity.
Further, said friction plate is provided with through hole, and the bearing pin axle sleeve is installed in the said through hole, and said fixed pin shaft passes said bearing pin axle sleeve can move axially said friction plate on said fixed pin shaft; Said friction plate joint bolt and lining pass the rack sleeve of installing in the support pilot hole that is arranged on the said fixed support.Like this; " U-shaped unit " axial restraint on fixed pin shaft that friction plate and stator case form is accomplished through two supporters; A supporter is a fixed pin shaft; Another supporter is a fixed support, and fixed support is fixedly connected with fixed pin shaft, has guaranteed that " U-shaped unit " can move axially on fixed pin shaft and fixed support reposefully.
Further, said armature is provided with several armature pilot holes, in the said armature pilot hole armature axle sleeve is installed, and said armature is installed on the said fixed pin shaft through said armature axle sleeve and can on said fixed pin shaft, moves axially.Because armature can move on fixed pin shaft; So at glancing impact; The friction lining of armature one side receives the tangential force of brake disc, directly is delivered to fixed pin shaft through armature and gets on, and does not pass through stator case and friction plate joint bolt; So obviously simplified the route that tangential force transmits, thereby alleviated the braking tangential force to impact damage of the present invention.
Particularly, said two groups of friction plate assemblies comprise armature friction plate assembly and friction plate friction plate assembly; In the said armature friction plate assembly, friction lining directly is bonded on the said armature end face; In the said friction plate friction plate assembly, the friction disk is bonded on the fixed cap, is set with round section joint ring on the said fixed cap, and said fixed cap is connected with said friction plate with adjustment nut through adjustable bolt.Gap when adjustable bolt and adjustment nut can be regulated brake off between friction plate one side friction disk and the brake disc.
Further, said support bracket fastened both sides are respectively arranged with several counterbores, are provided with cushion in the said counterbore; Said cushion one end near said friction plate one side withstands on said support bracket fastened counterbore bottom surface, and the other end withstands on the end face of said friction plate; Said cushion one end near said armature one side withstands on said support bracket fastened counterbore bottom surface, and the other end withstands on the end face of said armature.At glancing impact, cushion can play the impact of buffering friction lining to brake disc, thereby reduces the effect of noise.
Further, the rubber round section joint ring is installed on the said stator case, said rubber round section joint ring is between said stator case and said armature.When armature and stator case adhesive, with before stator case contacts, enclose with " O " rubber shape earlier and contact, slowed down the rigid shock of armature, thereby reduced the noise of the present invention when brake off stator case at armature.
Further, the sensing screw is installed on the said armature, said sensing screw contacts with switch of micro-switch after passing said stator case through hole, and said micro-switch is connected in series in the driving loop of brake disc.Because the sensing screw is connected with armature; And armature is connected with friction lining; So the position that the sensing screw can the perceived friction sheet is that to be in braking also be non-braking mode; And this information passed to micro-switch, micro-switch forces to break off the driving loop of brake disc when braking mode, thereby has avoided the safety misadventure that causes because of the mistake braking.
Further, said stator case is equipped with release lever away from an end of said armature; Central axial direction with said coil is an axial direction, is provided with the handle through hole of said axial direction in the said stator case; Said release lever is connected with said armature through the handle joint bolt that passes said handle through hole; In the said handle through hole stage clip is installed; Dustproof baffle plate is installed on the said fixed support, and said dustproof baffle plate covers said friction plate, said fixed support and said armature and keeps certain interval with said friction plate and said armature residual gap.Under normal circumstances, glancing impact, armature promote friction lining and hold brake disc tightly under the elastic force effect of stage clip, and during brake off, the elastic force that the magnetic field magnetic force that coil produces overcomes stage clip makes the stator case adhesive armature.Under improper situation; Reach like the gap between sudden power or stator case and armature and to make armature can't be by the adhesive of coil magnetic field power the time; Friction lining is the braking with locked wheels dish always; At this moment can pull release lever, the elastic force that overcomes stage clip with manpower makes armature near stator case, thus brake off.Dustproof baffle plate then can prevent the present invention in use solid foreign materials fall in the slit between fixed support and friction plate, fixed support and the armature, influence normal operation of the present invention.
Beneficial effect of the present invention is:
The present invention has in use avoided the impulsive force of brake disc that the present invention is caused damage, and has protected friction lining, has reduced noise, has improved braking effect, has prolonged the life-span of the present invention, is the important technology improvement to magnet stopper and application thereof; Its advantage is embodied in: (1) makes friction plate away from support bracket fastened reposition element through friction plate and fixed support being set and between the two, being provided with; Thereby reach and when brake off, drive the purpose of friction plate assembly to the direction motion of leaving brake disc; Thereby realize the thorough disengaging of two friction linings and brake disc; Prevent the mistake friction generates, improved life-span of the present invention, braking effect and safety; (2) bear moving axially of " U-shaped unit " that friction plate and stator case form through designing a fixed support, it is more steadily reliable that " U-shaped unit " moved; Long mounting hole through cancellation traditional electrical magnetic disc formula drg pedestal has reduced the bore hole processing of slotted hole, has improved production efficiency and production qualification rate, is beneficial to large scale production and cost control; (3) through the armature pilot hole of design on armature with the fixed pin shaft routing motion; Armature is moved along fixed pin shaft in the present invention's braking and releasing glancing impact; Brake disc is directly delivered on the fixed pin shaft the tangential force of friction lining; Simplified the bang path of brake disc tangential force, reduced brake disc, helped guaranteeing the stability and the reliability of each parts of the present invention rigid shock of the present invention; (4) through respectively between fixed support and friction plate and armature the design flexibility pad slow down the rigid shock of glancing impact friction lining of the present invention to brake disc, thereby reduce brake noise; (5) through the rubber round section joint ring is installed between stator case and armature; When stator case and armature adhesive (brake off); Utilize this rubber round section joint ring to slow down the impact of armature, thereby reach the purpose of the noise when reducing brake off of the present invention stator case; (6), make micro-switch when the braking mode of improper situation, force to break off the driving loop of brake disc, thereby avoided braking the safety misadventure that causes because of mistake through sensing screw and micro-switch are installed; (7) through release lever is installed, spur by force armature make it with stator case near (being equal to adhesive), brake off, prevent maloperation braking or big gap can't adhesive or fault give when (as having a power failure) and use and keep in repair the inconvenience that brings; (8) through install dustproof baffle plate prevent the present invention in use solid foreign materials fall in the slit between fixed support and friction plate, fixed support and the armature, influence normal operation of the present invention.
Description of drawings
Fig. 1 is a left TV structure scheme drawing of the present invention;
A-A cutaway view among Fig. 2 Fig. 1;
Fig. 3 is that the plan structure scheme drawing cuts open in office of the present invention among Fig. 2;
Fig. 4 is the enlarged drawing of B among Fig. 3.
Wherein, 1-friction plate, 2-adjustment nut, 3-adjustable bolt, 4-fixed cap, the 5-disk that rubs; 6-friction plate joint bolt, 7-rack sleeve, 8-cushion, 9-bearing pin axle sleeve, 10-support jam nut, 11-support joint bolt; 12-fixed support, the 13-baffle plate that prevents dust, 14-release lever, 15-armature axle sleeve, 16-fixed pin shaft, 17-lining; The 18-Elastip pin, 19-retracing spring, 20-handle grip nut, 21-handle joint bolt, 22-steel ball, 23-handle inner nut; The 24-stator case, 25-coil, 26-rubber pad, 27-armature joint bolt, 28-torsion spring, 29-rubber round section joint ring; 30-armature, 31-friction lining, 32-brake disc, 33-round section joint ring, 34-stop screw, 35-reposition element; The 36-jam nut that resets, 37-sensing screw lock nut, 38-sensing screw, 39-micro-switch, the 40-baffle plate joint bolt that prevents dust.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made further specific descriptions:
Like Fig. 1, Fig. 2 and shown in Figure 3; The present invention includes stator case 24, coil 25, armature 30, fixed pin shaft 16, two groups of friction plate assemblies, friction plate 1 and fixed supports 12, friction plate 1 through friction plate joint bolt 6 and lining 17 and stator case 24 be linked together and the microspur that can on lining 17, make axial direction move; Fixed support 12 is between friction plate 1 and armature 30, and fixed support 12 is fixedly mounted on the fixed pin shaft 16 through support joint bolt 11 and support jam nut 10, all remains with the gap between fixed support 12 and friction plate 1 and the armature 30; Be provided with between friction plate 1 and the fixed support 12 and make the reposition element 35 of friction plate 1 away from fixed support 12.
Like Fig. 2, Fig. 3 and shown in Figure 4; Be installed with stop screw 34 through the jam nut 36 that resets between friction plate 1 and the fixed support 12; It (also can be fixed support 12 that stop screw 34 passes friction plate 1; Also can be friction plate 1 and fixed support 12) spacing hole at middle part, reposition element 35 is positioned at said spacing hole, and stop screw 34 passes reposition element 35.The convenient like this elasticity with reposition element 35 makes friction plate 1 away from fixed support 12.Like Fig. 3 and shown in Figure 4, reposition element 35 is spring (also can be elastic caoutchouc or elastoplast, as long as it is just passable to have enough elasticity).
As shown in Figure 2, friction plate 1 is provided with through hole, and bearing pin axle sleeve 9 is installed in the said through hole, and fixed pin shaft 16 passes bearing pin axle sleeve 9 can move axially friction plate 1 on fixed pin shaft 16; Friction plate joint bolt 6 passes the rack sleeve of installing in the support pilot hole that is arranged on the fixed support 12 7 with lining 17.Like this; Friction plate 1 is accomplished through two supporters with " U-shaped unit " axial restraint on fixed pin shaft 16 that stator case 12 forms; A supporter is a fixed pin shaft 16; Another supporter is a fixed support 12, and fixed support 12 is fixedly connected with fixed pin shaft 16, has guaranteed that " U-shaped unit " can move axially on fixed pin shaft 16 and fixed support 12 reposefully.
As shown in Figure 2, armature 30 is provided with several armature pilot holes, in the said armature pilot hole armature axle sleeve 15 is installed, and armature 30 is installed on the fixed pin shaft 16 through armature axle sleeve 15 and can on fixed pin shaft 16, moves axially.Because armature 30 can move on fixed pin shaft 16; So at glancing impact; The friction lining 31 of armature 30 1 sides receives the tangential force of brake disc 32, directly is delivered to fixed pin shaft 16 through armature 30 and gets on, and does not pass through stator case 24 and friction plate joint bolt 6; So obviously simplified the route that tangential force transmits, thereby alleviated the braking tangential force to impact damage of the present invention.
As shown in Figure 2, said two groups of friction plate assemblies comprise armature friction plate assembly and friction plate friction plate assembly; In the said armature friction plate assembly, friction lining 31 directly is bonded on armature 30 end faces; In the said friction plate friction plate assembly, friction disk 5 is bonded on the fixed cap 4, is set with round section joint ring 33 on the fixed cap 4, and fixed cap 4 is connected with friction plate 1 with adjustment nut 2 through adjustable bolt 3.The friction disk 5 of friction plate 1 one sides and the gap between the brake disc 32 when adjustable bolt 3 and adjustment nut 2 can be regulated brake off.
As shown in Figure 2, the both sides of fixed support 12 are respectively arranged with several counterbores, are provided with cushion 8 in the said counterbore; Withstand on the counterbore bottom surface of fixed support 12 near an end of the cushion 8 of friction plate 1 one sides, the other end withstands on the end face of friction plate 1; Withstand on the counterbore bottom surface of fixed support 12 near an end of the cushion 8 of armature 30 1 sides, the other end withstands on the end face of armature 30.At glancing impact, cushion 8 can play the impact of buffering friction lining 31 and 5 pairs of brake discs 32 of friction disk, thereby reduces noise.
As shown in Figure 2, rubber round section joint ring 29 is installed on the stator case 24, rubber round section joint ring 29 is between stator case 24 and armature 30.Armature 30 is during with stator case 24 adhesives,, contacts with rubber round section joint ring 29 earlier with before stator case 24 contacts at armature 30, slowed down the rigid shock of 30 pairs of stator cases 24 of armature, thereby reduced the noise of the present invention when brake off.
As shown in Figure 3; Through sensing screw lock nut 37 sensing screw 38 is installed on the armature 30; Sensing screw 38 contacts with switch of micro-switch 39 after passing the through hole of stator case 24, and micro-switch 39 is connected in series in the driving loop (not shown) of brake disc 32.Because sensing screw 38 is connected with armature 30; And armature 30 is connected with friction lining 31; So the position that sensing screw 38 can perceived friction sheet 31 is that to be in braking also be non-braking mode; And this information passed to micro-switch 39, micro-switch 39 forces to break off the driving loop of brake disc 32 when braking mode, thereby has avoided the safety misadventure that causes because of the mistake braking.
As shown in Figure 2; Stator case 24 is equipped with release lever 14 away from an end of armature 30, is axial direction with the central axial direction of coil 25, is provided with the handle through hole of said axial direction in the stator case 24; Release lever 14 is connected with armature 30 through the handle joint bolt 21 that passes said handle through hole; On the handle joint bolt 21 in the said handle through hole handle inner nut 23 is installed, between the handle inner nut 23 in the said handle through hole and the hole wall of said handle through hole stage clip 19 is installed, in the bottom surface counterbore of stator case 24 steel ball 22 is installed; The end face that steel ball 22 is released handle 15 surrounds, and locked with handle outer nut 20.Under normal circumstances, glancing impact, armature 30 promote friction lining 31 and hold brake disc tightly under the elastic force effect of stage clip 19, and during brake off, the elastic force that the magnetic field magnetic force that coil 25 produces overcomes stage clip 19 makes stator case 24 adhesive armatures 30; Under improper situation; Reach like the gap between sudden power or stator case 24 and armature 30 and to make armature 30 can't be by the magnetic field force adhesive of coil 25 time; Friction lining 31 is the braking with locked wheels dish always; At this moment can pull release lever 14, the elastic force that overcomes stage clip 19 with manpower makes armature 30 near stator case 24, thus brake off.
As shown in Figures 2 and 3, through dustproof baffle plate joint bolt 40 dustproof baffle plate 13 is installed on the fixed support 12, dustproof baffle plate 13 covers friction plate 1, fixed support 12 and armature 30 and and friction plate 1 and 30 maintenances of armature certain interval.Dustproof baffle plate 13 can prevent the present invention in use solid foreign materials fall in the slit between fixed support 12 and friction plate 1, fixed support 12 and the armature 30, influence normal operation of the present invention.
As shown in Figure 2, armature 30 connects with stator case 24 through Elastip pin 18 and armature joint bolt 27 simultaneously, and armature 30 can move axially along Elastip pin 18.Armature joint bolt 27 1 ends are installed on the armature 30, and the other end is installed on the stator case 24 and passes torsion spring 28, and the head of armature joint bolt 27 has rubber pad 26 (round section joint ring).
In the said structure, the effect of the pedestal in friction plate 1 and the traditional electrical magnetic brake is the same, but himself structure and all different with the connection structure of stator case 24.
Below in conjunction with Fig. 1-Fig. 3 principle of work of the present invention and process are specified:
Under coil 25 energising situation; Coil 25 generates an electromagnetic field; Magnetic line of force passes stator case 24 and armature 30 and air gap between the two; Magnetic field force overcomes the thrust of 28 pairs of armature 30 of torsion spring, attracts armature 30 to drive friction lining 31 disengaging brake discs 32 and moves to the direction of stator case 24 along fixed pin shaft 16.In this process; When the remaining positive pressure of 31 pairs of brake discs of friction lining 32 when this moment, reposition element 35 was to the positive pressure of " U-shaped unit "; The opposition that is 32 pairs of friction linings 31 of brake disc is when this moment, reposition element 35 was to the positive pressure of " U-shaped unit "; Reposition element 35 promotions " U-shaped unit " are moved to the direction of friction plate 1 along lining 17 together and (are moved axially in the rack sleeve 7 of lining 17 in the pilot hole of fixed support 12; Driving whole " U-shaped unit " moves axially); Friction disk 5 is followed " U-shaped unit " to the direction motion that breaks away from brake disc 32, and the disk 5 that promptly rubs moves with friction lining 31 in the opposite direction, throws off brake disc 32 together.When the head end that moves to caging bolt 34 when friction plate 1 contacts with friction plate 1 end face (movement travel be nominal clearance 1/2 the time); Friction plate 1 no longer moves with friction disk 5; And friction lining 31 continuation this moment are to the direction motion of stator case 24; Up to armature 30 with till the end face of stator case 24 contacts, promptly friction lining 31 and friction disk 5 all and all have certain interval between the brake disc 32, thereby brake off; Brake disc 32 rotates, and promptly begins to rotate with brake disc 32 bonded assemblys machineries (like winch).In this process, rubber round section joint ring 29 can slow down the rigid shock of 30 pairs of stator cases 24 of armature, thus the noise can reduce brake off of the present invention effectively the time.
Claims (10)
1. the electromagnetism disc brake with chafing gear comprises stator case, coil, armature, fixed pin shaft, two groups of friction plate assemblies; It is characterized in that: also comprise friction plate and fixed support, said friction plate through friction plate joint bolt and lining and said stator case be linked together and the microspur that can on said lining, make axial direction move; Said fixed support is between said friction plate and said armature, and said fixed support is fixedly mounted on the fixed pin shaft, all remains with the gap between said fixed support and said friction plate and the said armature; Be provided with between said friction plate and the said fixed support and make said friction plate away from said support bracket fastened reposition element.
2. the electromagnetism disc brake of band chafing gear according to claim 1; It is characterized in that: be installed with stop screw through the jam nut that resets between said friction plate and the said fixed support; Said stop screw passes the spacing hole at said friction plate and/or said fixed support middle part; Said reposition element is positioned at said spacing hole, and said stop screw passes said reposition element.
3. the electromagnetism disc brake of band chafing gear according to claim 1 and 2 is characterized in that: said reposition element is spring or elastic caoutchouc or elastoplast.
4. the electromagnetism disc brake of band chafing gear according to claim 1; It is characterized in that: said friction plate is provided with through hole; The bearing pin axle sleeve is installed in the said through hole, and said fixed pin shaft passes said bearing pin axle sleeve can move axially said friction plate on said fixed pin shaft; Said friction plate joint bolt and lining pass the rack sleeve of installing in the support pilot hole that is arranged on the said fixed support.
5. the electromagnetism disc brake of band chafing gear according to claim 1; It is characterized in that: said armature is provided with several armature pilot holes; In the said armature pilot hole armature axle sleeve is installed, said armature is installed on the said fixed pin shaft through said armature axle sleeve and can on said fixed pin shaft, moves axially.
6. the electromagnetism disc brake of band chafing gear according to claim 1 is characterized in that: said two groups of friction plate assemblies comprise armature friction plate assembly and friction plate friction plate assembly; In the said armature friction plate assembly, friction lining directly is bonded on the said armature end face; In the said friction plate friction plate assembly, the friction disk is bonded on the fixed cap, is set with round section joint ring on the said fixed cap, and said fixed cap is connected with said friction plate with adjustment nut through adjustable bolt.
7. the electromagnetism disc brake of band chafing gear according to claim 1 is characterized in that: said support bracket fastened both sides are respectively arranged with several counterbores, are provided with cushion in the said counterbore; Said cushion one end near said friction plate one side withstands on said support bracket fastened counterbore bottom surface, and the other end withstands on the end face of said friction plate; Said cushion one end near said armature one side withstands on said support bracket fastened counterbore bottom surface, and the other end withstands on the end face of said armature.
8. the electromagnetism disc brake of band chafing gear according to claim 1 is characterized in that: the rubber round section joint ring is installed on the said stator case, and said rubber round section joint ring is between said stator case and said armature.
9. the electromagnetism disc brake of band chafing gear according to claim 1; It is characterized in that: the sensing screw is installed on the said armature; Said sensing screw contacts with switch of micro-switch after passing said stator case through hole, and said micro-switch is connected in series in the driving loop of brake disc.
10. the electromagnetism disc brake of band chafing gear according to claim 1 is characterized in that: said stator case is equipped with release lever away from an end of said armature; Central axial direction with said coil is an axial direction, is provided with the handle through hole of said axial direction in the said stator case; Said release lever is connected with said armature through the handle joint bolt that passes said handle through hole; In the said handle through hole stage clip is installed; Dustproof baffle plate is installed on the said fixed support, and said dustproof baffle plate covers said friction plate, said fixed support and said armature and keeps certain interval with said friction plate and said armature residual gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110228459 CN102311065B (en) | 2011-08-10 | 2011-08-10 | Electromagnetic disc brake with antifriction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110228459 CN102311065B (en) | 2011-08-10 | 2011-08-10 | Electromagnetic disc brake with antifriction device |
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| CN102311065A true CN102311065A (en) | 2012-01-11 |
| CN102311065B CN102311065B (en) | 2013-01-23 |
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| CN 201110228459 Active CN102311065B (en) | 2011-08-10 | 2011-08-10 | Electromagnetic disc brake with antifriction device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291235B (en) * | 2014-11-04 | 2017-04-26 | 北京索德电气工业有限公司 | Magnet brake used for lifting equipment |
| CN107618964A (en) * | 2016-07-15 | 2018-01-23 | 株式会社日立制作所 | Winch for elevator and lift appliance |
| WO2018107630A1 (en) * | 2016-12-13 | 2018-06-21 | 深圳市威捷机电股份公司 | Braking component in electromagnetic braking device |
| CN108223623A (en) * | 2018-02-27 | 2018-06-29 | 遨博（北京）智能科技有限公司 | A kind of disk type electromagnetic brake and joint of robot |
| CN108463644A (en) * | 2015-12-09 | 2018-08-28 | 克诺尔商用车制动***有限公司 | Brake lining for disk brake |
| CN109626219A (en) * | 2019-01-02 | 2019-04-16 | 江南造船(集团)有限责任公司 | A kind of operating mechanism for engine room crane motor emergency release |
| CN110043582A (en) * | 2019-04-19 | 2019-07-23 | 浙江万向***有限公司 | A kind of friction plate noise reduction and active return structure |
| CN111747272A (en) * | 2020-07-08 | 2020-10-09 | 迅达（中国）电梯有限公司 | Position adjustment control device and elevator |
| CN112272741A (en) * | 2018-07-23 | 2021-01-26 | 日立汽车***株式会社 | Disc brake |
| WO2023060699A1 (en) * | 2021-10-13 | 2023-04-20 | 浙江欧导自动化设备有限公司 | Simple disc brake caliper for new energy vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291235B (en) * | 2014-11-04 | 2017-04-26 | 北京索德电气工业有限公司 | Magnet brake used for lifting equipment |
| US10865843B2 (en) | 2015-12-09 | 2020-12-15 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Brake pad for a disc brake |
| CN108463644A (en) * | 2015-12-09 | 2018-08-28 | 克诺尔商用车制动***有限公司 | Brake lining for disk brake |
| CN108463644B (en) * | 2015-12-09 | 2020-04-21 | 克诺尔商用车制动***有限公司 | Brake lining for a disk brake |
| CN107618964A (en) * | 2016-07-15 | 2018-01-23 | 株式会社日立制作所 | Winch for elevator and lift appliance |
| CN107618964B (en) * | 2016-07-15 | 2020-02-28 | 株式会社日立制作所 | Elevator hoist and elevator device |
| WO2018107630A1 (en) * | 2016-12-13 | 2018-06-21 | 深圳市威捷机电股份公司 | Braking component in electromagnetic braking device |
| CN108223623A (en) * | 2018-02-27 | 2018-06-29 | 遨博（北京）智能科技有限公司 | A kind of disk type electromagnetic brake and joint of robot |
| CN112272741A (en) * | 2018-07-23 | 2021-01-26 | 日立汽车***株式会社 | Disc brake |
| CN109626219A (en) * | 2019-01-02 | 2019-04-16 | 江南造船(集团)有限责任公司 | A kind of operating mechanism for engine room crane motor emergency release |
| CN110043582A (en) * | 2019-04-19 | 2019-07-23 | 浙江万向***有限公司 | A kind of friction plate noise reduction and active return structure |
| CN111747272A (en) * | 2020-07-08 | 2020-10-09 | 迅达（中国）电梯有限公司 | Position adjustment control device and elevator |
| WO2023060699A1 (en) * | 2021-10-13 | 2023-04-20 | 浙江欧导自动化设备有限公司 | Simple disc brake caliper for new energy vehicle |
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Effective date of registration: 20170906 Address after: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Machinery Technology Co. Ltd. Address before: West Port Avenue 610000 Sichuan city in Chengdu Province, southwest of Shuangliu County Airport Development Zone No. 909 two Patentee before: Ruidi Machinery Ind Co., Ltd., Chengdu |
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Address after: Shuangliu District of Sichuan province 610225 Avenue Chengdu City West four No. 909 in Hong Kong Patentee after: Chengdu Ruidi Zhiqu Technology Co.,Ltd. Address before: Shuangliu District of Sichuan province 610000 Avenue Chengdu City West four No. 909 in Hong Kong Patentee before: CHENGDU REACH MACHINERY Co.,Ltd. |