CN2413084Y

CN2413084Y - Electromagnetic brake clutch

Info

Publication number: CN2413084Y
Application number: CN 98242610
Authority: CN
Inventors: 黄森隆
Original assignee: FUZHOU YONGSEN MACHINE HARDWAR
Current assignee: FUZHOU YONGSEN MACHINE HARDWAR
Priority date: 1998-11-05
Filing date: 1998-11-05
Publication date: 2001-01-03
Anticipated expiration: 2008-11-05

Abstract

The utility model relates to an electromagnetic brake clutch which is arranged between a manpower belt pulley and a force output shaft, comprising a yoke, an armature, a clutch plate and a braking plate. The functions of clutching and braking can be simultaneously obtained mainly by the axial displacement of the armature which is arranged between the clutch plate and the braking plate. When the armature is acted, the armature can be separated from the braking and closed to the clutch plate, and the manpower mechanism can drive the force output shaft to rotate through the clutch plate and the armature; when the armature is not acted, the armature can be separated from the clutch plate and closed to the braking plate under the action of the restoring force of a spring, and the force output shaft can be stopped rotating.

Description

The electromagnetic type brake clutch

The utility model relates to a kind of structure improvement of electromagnetic type brake clutch, especially refer to that a kind of action is noiseless, reliable, and a kind of electromagnetic type brake clutch structure improvement person who is used for the automatic that the short distance of electronic Control work platform moves that can not produce spark and can adjust action sensitivity.

General automatic machinery is to make it can finish the processing of high precision, mould before processing is proofreaied and correct or the workpiece location is a very important job, mould is proofreaied and correct or the work of workpiece location and will perform, then just must repeatedly a spot of shuttle table, mould correction or workpiece location are reached to required requirement, so therefore automatic machinery just must have the starting of high frequency and highi degree of accuracy, braking, adjusting microinching, the electronic Control work platform of locating function, yet desire to make this electronic Control work platform can reach as above-mentioned required requirement, utilize an electromagnetic type brake clutch to control this worktable, be the most general at present also be most common form.

The electromagnetic type brake clutch of prior art, as shown in Figure 1, 2, it is installed on one and goes into 10 of power belt pulley 1 and force-output shafts, combined by members such as a yoke 2, an armature 3, a clutch plate 4, a braking vane 5 and brake discs 53, wherein:

In the middle of the yoke 2 with pair of bearings 20 axle sleeve 22 that is pivoted, and this axle sleeve 22 can be confessed mechanical axis 10 and passes, and it is linked with a key, yoke 2 is formed with force-output shaft 10 rotatably to be connected, enclose the isolation channel 23 of separation and be provided with ring by central position in yoke 2, in addition be provided with ring and enclose some screws 25 and the tube groove 26 that is evenly distributed in a side surface 24 of this yoke 2, to put for screw 27 and spring 28 spiral shell settings respectively, wherein head 270 diameters of this screw 27 are bigger and cylindrical and be convexly set in the outside of yoke 2, the length of this spring 28 is then about long together with screw 27, and an end 29 of this yoke 2 is fixed on the bonding part (bonding part of machinery, not shown).

Armature 3 has an axis hole 30 and just can pass for axle sleeve 22, and with a key 33 with its binding, and a side of the inboard of this armature 3 and yoke 2 forms and to adjoin at interval, and the outside then is subjected to a C type clasp 31 to limit it outwards to move axially, be embedded a friction plate 32 in addition again on the outer side surface of this armature 3.

The outer side surface of clutch plate 4 one sides and armature 3 forms at interval and adjoins, and opposite side then is fixed on the power belt pulley 1 so that a return spring sheet 40 is folded mutually.

Braking vane 5 its rings are arranged with the perforation 50 that is evenly distributed, can embed for the head 270 of the screw 27 that protrudes from yoke 2 one sides, make this braking vane 5 can be hung on a side of yoke 2 with moving axially, and the inboard of this braking vane 5 props up the spring 28 that protrudes from yoke 2 one sides just, adjoin and form the interval, and other sets firmly a friction plate 32 in the outer side surface 51 of this braking vane 5 with yoke 2.

Brake disc 53 has an axis hole 54, and just can pass for axle sleeve 22, and with a key 33 it is linked, its inboard then with the friction plate 32 in braking vane 5 outsides closely by establishing, and buckle the outside of being located at brake disc 53 with a C type clasp 31, move axially to limit it.

Please refer to Fig. 3, when armature 3 is done the time spent, this clutch plate 4 promptly is attracted to armature 3 and yoke 2, this braking vane 5 also is attracted to armature 3 and yoke 2 simultaneously in addition, and if this moment is 1 one-tenths rotary state of belt pulley, and then belt pulley 1 can drive clutch plate 4 and armature 3 and make force-output shaft 10 rotations, also be attracted to yoke 2 and pressure spring 28 in this while braking vane 5, and make the friction plate 32 of its other side be the state that is spaced apart with brake disc 53, therefore, force-output shaft 10 just can be easily by transmission.

Other please refer to Fig. 2, when armature 3 is not done the time spent, this clutch plate 4 promptly is subjected to the restoring force of return spring sheet 40 and it is returned to the state that is spaced and parallel with armature 3, and the power that makes belt pulley 1 can't be passed to armature 3, this braking vane 5 also can be subjected to the elastic force of spring 28 and push it against brake disc 53 simultaneously, and the friction plate 32 on it is rubbed closely with brake disc 53, and reach the purpose of brake.

Yet, such as the structure of the electromagnetic type brake clutch of above-mentioned prior art, though extensively apply in the industry, and be commonly people and use, but be easy to generate following shortcoming on the implementation:

One, easily produces noise and spark: because the structure of existing electromagnetic type brake clutch, its friction plate 32 is to be embedded in the outer side surface of armature 3, and this armature 3 and clutch plate 4 all are made of metal, so when clutch plate 4 desires of rotating drive armature 3 rotations, just its contact friction be can therefore make, so that noise and spark produced.

Two, the gap can't be adjusted: because of the structure of existing electromagnetic type brake clutch, its armature 3 and brake disc 53 are fixed on the fixedly appropriate location of axle sleeve 22 with a key 33 respectively, so the friction plate 32 on this brake disc 53 and the braking vane 5 and the gap of the friction plate 32 on clutch plate 4 and the armature 3 are fixing and can't adjust, so after using a period of time, when this friction plate 32 is frayed, just can make this gap become big and make motor reaction insensitive, unreliable, and influence safety.

Three, the starting braking torque force is less: because the structure of existing electromagnetic type brake clutch, ring is arranged with some isolation channels that run through 23 on its armature 3 and the yoke 2, thus can therefore cause the situation of leakage field, and make the starting braking torque force less.

Four, assembling bothers and takes up space: because the structure of existing electromagnetic type brake clutch, one end 29 of its yoke 2 is fixed on the bonding part, and be provided with armature 3 and braking vane 5 in the both sides of this yoke 2, and the both sides of armature 3 and braking vane 5 must be provided with an amount of gap and act on for it, so its assembling trouble and taking up space.

Main purpose of the present utility model is to utilize the axial displacement of being located at the armature between clutch plate and braking vane, reaches the effect of clutch brake simultaneously, and the electromagnetic type brake clutch of design.

Task of the present utility model is finished like this: a kind of electromagnetic type brake clutch, it is installed on one and goes between a power belt pulley and a force-output shaft, include a yoke, one armature, one clutch plate and a braking vane, it is characterized in that: be provided with an axis hole in the middle of the yoke, and be provided with a pivot seat with the axle sleeve that is pivoted in the one side, and this axle sleeve can be confessed that mechanical axis passes and with key it be linked, and the appropriate location on this axle sleeve is provided with some double wedges, and be provided with outside thread in the one end, the inboard of this yoke is fixed on the bonding part of a machinery, its outer side surface then is provided with a brake panel seat, is provided with screw thread in this brake panel seat outboard end;

One side of armature is provided with a protruding axle and wears pivot in the axis hole of yoke, central authorities then are provided with a perforation and wear for the double wedge of axle sleeve in it, outer side surface in this armature is provided with some spring eyes in addition, for installing of spring, and be located on the outside thread of axle sleeve with a block spiral shell, and this spring envelope is located in the spring eye, and be located with certain screw;

One side of clutch plate is provided with a screw and is located at a clutch panel seat in order to spiral shell, and this clutch panel seat is to be fixed on the power belt pulley, and there is a finedraw in the week in clutch plate along ring cutting, can its distortion be packed on the clutch panel seat by this finedraw when Locking screw is screwed into, and be provided with a friction plate in the outer side surface of this clutch plate;

One side of braking vane be provided with a screw for its screw lock on the screw thread of brake panel seat one end, and in week of this braking vane along ring cutting one finedraw, make Locking screw be screwed into Shi Keji its distortion is packed on the brake panel seat, and be provided with a friction plate in the outer side surface of this braking vane.

Structure of the present utility model is done the time spent at armature, it just can separate with braking vane and to the clutch plate closing, can drive force-output shaft via clutch plate and armature into force mechanisms and rotate and make, done the time spent and work as armature, then armature just is subjected to the effect of spring restoring force, and separate with clutch plate and to the braking vane closing, and force-output shaft is stopped operating, the above-mentioned structure of mat makes it can not produce noise and spark, and clearance-adjustable is so that motor reaction sensitivity, safe accurately and reliably and, and can make its starting braking torque force become big and more do not take up space.

Below in conjunction with concrete legend preferable enforcement of the present utility model is elaborated:

Fig. 1 is the three-dimensional exploded view of prior art

Fig. 2 is the combination section of prior art

Fig. 3 is the action schematic representation of prior art

Fig. 4 is a three-dimensional exploded view of the present utility model

Fig. 5 is a combination section of the present utility model

Fig. 6 is an action schematic representation of the present utility model

With reference to Fig. 4 and shown in Figure 5, the utility model is a kind of structure improvement of electromagnetic type brake clutch, and its main device is gone into 10 of power belt pulley 1 and force-output shafts in one, form by component compositions such as a yoke 2, an armature 3, a clutch plate 4 and braking vanes 5, wherein:

Yoke 2 is to be provided with an axis hole 60 in the middle of it, and be provided with a pivot seat 61 in one side inside, and the axle sleeve 22 that is pivoted in the centre of this pivot seat 61, and this axle sleeve 22 is can confess that mechanical axis 10 passes and with key it is linked, and the appropriate location on this axle sleeve 22 is provided with some double wedges 63, and be provided with outside thread 64 in the one end, and this yoke 2 fasten down two ends respectively be provided with lug 65 be fixed in a bonding part (machinery the bonding part, not shown) on, and its outer side surface system is provided with a brake panel seat 66, also is provided with screw thread 67 on its outboard end.

Armature 3 is that the one side is provided with one protruding 70 to wear pivot in the axis hole 60 of yoke 2, its central authorities then are provided with a perforation 71 and wear for the double wedge 63 of axle sleeve 22, can't radial displacement so that this armature 3 can be done axial displacement on axle sleeve 22, and other is provided with some spring eyes 72 in the outside of this armature 3, for installing of spring 28, and be located on the outside thread 64 of axle sleeve 22 with a block 74 spiral shells, so that these spring 28 envelopes are located in the spring eye 72, and be screwed into a location screw 27 with these spring 28 location by these block 74 1 sides again.

Clutch plate 4 is that the one side is provided with a screw 80 and is located on the clutch panel seat 81 in order to spiral shell, and this clutch panel seat 81 is to be fixed on the power belt pulley 1, and there is a finedraw 82 in the week in clutch plate 4 along ring cutting, can its distortion be packed on the clutch panel seat 81 by this finedraw 82 when Locking screw 27 is screwed into, and be provided with a friction plate 32 in the outer side surface of this clutch plate 4.

But braking vane 5 is the one side be provided with a screw 90 for its screw lock on the screw thread 67 of brake panel seat 66 1 ends, and there is a finedraw 82 in the week in this braking vane 5 along ring cutting, its distortion is packed on the brake panel seat 66, and is provided with a friction plate 32 in the outer side surface of this braking vane 5.

With reference to Fig. 6, when armature 3 is done the time spent, this armature 3 promptly break away from braking vane 5 and with clutch plate 4 on friction plate 32 closings, if this moment is 1 one-tenth rotary state of belt pulley, then belt pulley 1 can drive armature 3 and force-output shaft 10 is rotated, just can be in this spring 28 of being located at armature 3 one sides simultaneously because of block 74 is compressed, therefore, force-output shaft 10 just can be easily by transmission.

Refer again to Fig. 5, when armature 3 is not done the time spent, this armature 3 promptly is subjected to the elastic force effect of spring 28, and make this armature 3 break away from clutch plate 4, therefore make the power of belt pulley 1 can't be passed to armature 3, this armature 3 also can be subjected to the elastic force of spring 28 and push it against friction plate 32 on the braking vane 5 and friction closely with it simultaneously, and reaches the purpose of brake.

Owing to the utlity model has special structural design, on implementing, use has as following advantage:

One, can not produce noise and spark: because the structure of electromagnetic type brake clutch of the present utility model, its friction plate 32 is the outside that is convexly set in clutch plate 4 and braking vane 5 fully, so armature 3 can be directly and friction plate 32 do contact friction completely so that can not produce noise and spark.

Two, can make things convenient for the adjusting play: because of the structure of electromagnetic type brake clutch of the present utility model, its clutch plate 4 and braking vane 5 are that direct spiral shell is located on clutch panel seat 81 and the brake panel seat 66, and each has finedraw 82 in its week along ring cutting, can be when Locking screw 27 is screwed into by the contraction of this finedraw 82, and its distortion is packed on clutch panel seat 81 and the brake panel seat 66, so after using a period of time, when this friction plate 32 is frayed, need only loosen Locking screw 27, with the gap of 3 at clutch plate 4 and braking vane 5 and armature turn down just can and its action is reached to being quick on the draw, optimum efficiency accurately and reliably.

Three, the starting braking torque force is bigger: because the structure of electromagnetic type brake clutch of the present utility model, its armature 3 is a plane and need not establish the isolation channel that runs through, thus therefore do not have the situation of leakage field, and the starting braking torque force is become greatly.

Four, assembling simply and more not takes up space: because the structure of electromagnetic type brake clutch of the present utility model, its yoke 2 is a side of being located at armature 3 and clutch plate 4, and be fixed on the bonding part, and braking vane 5 is that direct spiral shell is located on the brake panel seat 66 of yoke 2, clutch plate 4 is that direct spiral shell is located on the clutch panel seat 81 of power belt pulley 1 one sides, so it is comparatively simple and convenient in assembling, and does not also more take up space.

In sum, owing to the utlity model has above-mentioned advantage and use value, and in like product, there is no similar structure, it has substantial characteristics.

Claims

1, a kind of electromagnetic type brake clutch, it is installed on one goes between a power belt pulley and a force-output shaft, includes a yoke, armature, a clutch plate and a braking vane, it is characterized in that:

Be provided with an axis hole in the middle of the yoke, and there is not a pivot seat with the axle sleeve that is pivoted in the one side, and this axle sleeve can be confessed that mechanical axis passes and with key it be linked, and the appropriate location on this axle sleeve is provided with some double wedges, and be provided with outside thread in the one end, the inboard of this yoke is fixed on the bonding part of a machinery, and its outer side surface then is provided with a brake panel seat, is provided with screw thread in this brake panel seat outboard end;