CN101852260A

CN101852260A - Brake clutch

Info

Publication number: CN101852260A
Application number: CN 201010196081
Authority: CN
Inventors: 李世民
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-08
Filing date: 2010-06-08
Publication date: 2010-10-06
Anticipated expiration: 2030-06-08
Also published as: CN101852260B

Abstract

The invention relates to a brake clutch, comprising a wheel-shaped driving part, a shaft-shaped driving part, two ratchet assemblies, a snap-in column pushing-off device and a ratchet brake apparatus. The wheel-shaped driving part comprises a clutch chamber and a snap-in wall; the shaft-shaped driving part is mutually pivoted with the wheel-shaped driving part; the two ratchet assemblies are contained and limited in the clutch chamber and comprise a fixed ratchet assembly which is mutually connected with the shaft-shaped driving part and a moveable ratchet assembly which can freely rotate on the shaft-shaped driving part, the peripheral walls of the ratchet assemblies are respectively equipped with a plurality of opposite ratchets, and a column-containing groove is limited between any two opposite ratchets so that a plurality of snap-in columns can be selectively configured and limited in the groove; the snap-in column push device is used for pushing the snap-in columns to abut with the snap-in wall so that the wheel-shaped driving part and the shaft-shaped driving part can generate a power transmission action; and the ratchet brake apparatus is used for limiting the moveable ratchet assembly to rotate so that the snap-in columns are separated from the snap-in wall to stop the power transmission action, and meanwhile the shaft-shaped driving part is locked by a brake. By the structures, the brake clutch can achieve good brake clutch control and power transmission effect.

Description

Brake clutch

Technical field

The present invention system is relevant with a kind of clutch, more detailed it, be meant a kind of brake clutch especially.

Background technique

Existing many motive power machine equipments often are equipped with the electromagnetic type brake clutch especially as processing mechanical apparatus such as automatic lathes, use the output of control power, and export when stopping at power, with the transmission shaft pinning of being braked.

As shown in Figure 1, promptly disclosing has a kind of being mounted to be applied on the automatic lathe, and disposes the brake clutch seat 10 of an electromagnetic type brake clutch on it, in order to provide processing operations such as tapping or boring required transmission of power control.

This clutch 10 comprises a fixed base 11, installs on it and is pivoted with a transmission shaft 12, is pivoted with one on this transmission shaft 12 and can be subjected to motor to turn the belt pulley 13 of drive and an output wheel 14 that is linked on this transmission shaft 12; Above-mentioned electromagnetic type brake clutch then is configured on this fixed base 11 and the transmission shaft 12, mainly is made up of a clutch 15 and a brake 16; This clutch 15 has a clutch disk 152 that is linked on this belt pulley 13; This brake 16 has an electromagnet 161 that is linked on this fixed base 11, and a braking plate 162 that is linked on this transmission shaft 12.

Above-mentioned clutch 15 can be controlled as alternately startup and cut out with brake 16, so under the normality of not carrying out procedures such as tapping or boring, this clutch 15 can be closed, make electromagnet 151 demagnetizations, so, this clutch disk 152 just can be subjected to the elastic component effect of 151 of itself and electromagnet, unclasps and break away from mutually with this electromagnet 151, make motor can only drive this belt pulley 13 and produce idle running together with clutch disk 152, and can't be with transmission of power to transmission shaft 12; On the other hand, this brake 16 can be activated, and electromagnet 161 is able to by excitatory, and braking plate 16 is inhaled toward these electromagnet 161 directions, makes the lining mutual friction packing mutually on braking plate 162 and the electromagnet 161, and then with this transmission shaft 12 lock-bit that braked.

When desiring to carry out tapping or boring adds man-hour, can earlier brake 16 be closed, make electromagnet 161 by excitatory, so, this braking plate 162 can be subjected to the elastic component effect of 161 of itself and electromagnet, and break away from mutually with this electromagnet 161, to remove the braking state of transmission shaft 12, then, again clutch 15 is started, make electromagnet 151 by excitatory, and clutch disk 152 is inhaled toward electromagnet 151 directions, make this clutch disk 152 be able to mutual friction packing mutually with lining on the electromagnet 151, so, this motor power can be sent to transmission shaft 12 via belt pulley 13 and clutch 15, is sent to screw tap or drill bit by the output wheel on the transmission shaft 12 14 again, and tapping or boring processing are carried out in the work in the rotation.

In like manner, when tapping or when holing to predetermined stroke, can be again by closing this clutch 15 and starting brake 16 subsequently, transmission of power is interrupted, the pinning of simultaneously transmission shaft 12 being braked again, relatively, this screw tap or drill bit also can withdraw from screw tap or drill bit by the workpiece in the counterrotating and leave workpiece automatically by the brake locking.

The electromagnetic type brake clutch that above-mentioned brake clutch seat 10 adopts has many shortcomings on reality is used, comprising:

The pine of this clutch 15 from combine system and see through lining friction packing and reach, because the surface friction drag of this structure is less, therefore, often can't satisfy the process requirements of the general tapping or the contour torsion transmission of power of holing, cause the rubbing surface at lining place to be easy to generate skidding, cause work to interrupt stopping, so task performance is subjected to suitable restriction.

The lining of this clutch 15 just can produce abrasion significantly in use for some time, causes torsion to transmit usefulness and reduces, and makes that above-mentioned skidding is more serious, so working life is shorter, needs often to change lining, part exchanging cost height.

The power interruption of this transmission shaft 12, system reaches by closing clutch 15 and starting brake 16 subsequently, therefore, the power interruption time of this transmission shaft 12 can be influenced by the length of clutch 151 erasing times of 15 electromagnet, generally speaking, if the erasing time point needs the long erasing time usually at the higher crest location of electric current string ripple; Otherwise; in low crest value position; the needed erasing time shortens naturally; such situation; can cause the required reaction time of power interruption to differ, so in above-mentioned tapping or boring processing operation, cause tapping or drilling depth to be controlled accurately through regular meeting; cause the machining accuracy instability, and influence quality of processing.

The transmission of power of this transmission shaft 12; when just desiring to process operation; must close brake 16 earlier; to remove the braking state of transmission shaft 12; restart clutch 15 and carry out transmission of power; yet; as mentioned above; when brake 16 is closed; its electromagnet 161 needs one period erasing time, but before complete demagnetization, just before the braking state of this transmission shaft 12 is removed fully; this clutch 15 has started the execution transmission of power usually; therefore, regular meeting causes closing with the startup action of clutch 15 of brake 16 can't be connected such situation smoothly; can cause the lining on clutch 15 and the brake 16 to produce meaningless frictional loss to each other, and quicken abrasion.In like manner, in the transmission of power of interrupting transmission shaft 12, when just processing the stroke end, must close clutch 15 earlier, to interrupt transmission of power, start brake 16 more subsequently, screw tap or drill bit are return automatically, yet the electromagnet 151 of this clutch 15 needs one period erasing time equally, before its complete demagnetization, usually brake 16 has been activated, such situation can make closing with the startup action of brake 16 of clutch 15 be connected smoothly, so also can quicken the abrasion of lining equally.

The transmission of power of this transmission shaft 12 mainly is to contact mutual packing friction with face by the lining on the clutch 15 to each other with clutch disk 152 to come transmission, therefore, need bigger electromagnetic force to reach, so therefore the time of complete demagnetization also can prolong, make that the precision of processing is relatively poor, above-mentioned clutch 15 also more can't be connected smoothly with brake 16 action to each other, causes the problems referred to above all the more serious.

More than every shortcoming, perplexing device fabrication manufacturer and operator chronically, but suffer from not having the technological scheme of suitable and effective solution.

Summary of the invention

Main purpose of the present invention provides a kind of brake clutch, can reach good brake clutch for clutch control and power transmission effect.

To achieve these goals, brake clutch of the present invention is characterized in, comprising:

One colyliform driving component has a clutch chamber, and this clutch chamber has a circle-shaped interlock wall;

A shape driving component can run through a pivot with the relative rotation in above-mentioned colyliform driving component;

Two ratchet assemblies comprise a fixed ratchet wheel assembly and a movable ratchet assembly; Above-mentioned ratchet assembly can be received in the clutch chamber that is limited in above-mentioned colyliform driving component, and this fixed ratchet wheel assembly and above-mentioned axle shape driving component wear binding mutually; This activity ratchet assembly can be set on the above-mentioned axle shape driving component and freely rotate; Be respectively arranged with ratchet toward each other a plurality of but that direction is opposite on this fixed ratchet wheel assembly and the movable ratchet assembly periphery wall, and define one between wantonly two relative ratchets and hold the post groove;

A plurality of snap studs can optionally be disposed in the pre-constant volume post groove that is limited between above-mentioned ratchet assembly;

One snap studs ejecting device, above-mentioned snap studs suitably can be promoted to replace toward the interlock wall direction of above-mentioned colyliform driving component, make this colyliform driving component can see through the mutual interlock of this snap studs and said fixing ratchet assembly and movable ratchet assembly and link, and then produce the transmission of power effect with this shape driving component;

One ratchet braking device, in order in the power transmission process of above-mentioned colyliform driving component and axle shape driving component, limiting above-mentioned movable ratchet assembly rotates, force this snap studs to break away from the interlock wall of above-mentioned colyliform driving component, to interrupt above-mentioned transmission of power effect, the pinning of simultaneously above-mentioned axle shape driving component being braked.

This snap studs ejecting device comprises at least one group of spring fixing pin, and at least one extension spring; Above-mentioned each group spring fixing pin has first a spring fixing pin that is linked on this fixed ratchet wheel assembly outer side surface, and second a spring fixing pin that is linked on this activity ratchet assembly outer side surface; Above-mentioned extension spring can be mounted on respectively between arbitrary group of spring fixing pin, its elastic-restoring force of mat, normality ground sees through this spring fixing pin the said fixing ratchet assembly is done opposite rotation toward predetermined direction each other with movable ratchet assembly, and the interlock wall direction of above-mentioned each snap studs toward above-mentioned colyliform driving component promoted to replace.

This activity ratchet assembly is in the outside of this fixed ratchet wheel assembly, and it is provided with at least one spacing hole, after can being stretched through thus for the above-mentioned first spring fixing pin, be able in predetermined stroke to do restriction and rotate, above-mentioned extension spring can be mounted between same group the first spring fixing pin traversing through end and this second spring fixing pin free end simultaneously.

This fixed ratchet wheel assembly is in the outside of this activity ratchet assembly, and it is provided with at least one spacing hole, after can being stretched through thus for the above-mentioned second spring fixing pin, be limited in rotating in the predetermined stroke, above-mentioned extension spring can be mounted between same group the second spring fixing pin traversing through end and this first spring fixing pin free end simultaneously.

This snap studs ejecting device comprises that one installs the elasticity tension assembly be limited on the above-mentioned ratchet assembly, its elastic dilatation power outward of mat, and normality ground is replaced above-mentioned each snap studs toward the interlock wall direction promotion of colyliform driving component.

This elasticity tension assembly is installed and is limited between said fixing ratchet assembly and movable ratchet assembly.

Respectively be provided with an annular recess on the opposite side wall of this activity ratchet assembly and fixed ratchet wheel assembly, can define an annular chamber jointly, for this elasticity tension assembly hold be limited in, and above-mentioned annular recess is connected with this ratchet slot at each the ratchet slot place that is defined between wantonly two adjacent ratchets with respect to it, use making the above-mentioned elasticity tension assembly that is contained in this annular chamber, normality ground sees through the above-mentioned snap studs that these connection place pushing and pressing are positioned at each ratchet slot.

This elasticity tension assembly is one to have two free-ended metal wreaths.

This snap studs ejecting device comprises one group of spring fixing pin, and a torsion type pressure spring; Above-mentioned spring fixing pin has first a spring fixing pin that is linked on this fixed ratchet wheel assembly outer side surface, and second a spring fixing pin that is linked on this activity ratchet assembly outer side surface; Above-mentioned torsion type pressure spring can be set on this shape driving component, and have two free ends that are positioned at homonymy, can form a tension force end respectively, in order to be disposed between the above-mentioned first spring fixing pin and the second spring fixing pin, the torsion that its elasticity of mat is opened outward, normality ground sees through this spring fixing pin the said fixing ratchet assembly is done opposite rotation toward predetermined direction each other with movable ratchet assembly, and the interlock wall direction of above-mentioned each snap studs toward above-mentioned colyliform driving component promoted to replace.

This activity ratchet assembly is in the outside of this fixed ratchet wheel assembly, and it is provided with a spacing hole, after can being stretched through thus for the above-mentioned first spring fixing pin, be able to do restriction and rotate in predetermined stroke, each tension force end of above-mentioned torsion type pressure spring can be configured between the above-mentioned first spring fixing pin traversing through end and this second spring fixing pin free end simultaneously.

This fixed ratchet wheel assembly is in the outside of this activity ratchet assembly, and it is provided with a spacing hole, after can being stretched through thus for the above-mentioned second spring fixing pin, be limited in rotating in the predetermined stroke, each tension force end of above-mentioned torsion type pressure spring can be configured between the above-mentioned second spring fixing pin traversing through end and this first spring fixing pin free end simultaneously.

This torsion type pressure spring can and be limited in the ratchet assembly in the above-mentioned outside by axial compression suitably, and between this relative position of ratchet braking device, make the outside the ratchet assembly normality replaced by its elasticity spacing.

This ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; Above-mentioned brake shank is linked on this activity ratchet assembly outer side surface; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

This activity ratchet assembly is positioned at the outside of this fixed ratchet wheel assembly.

This fixed ratchet wheel assembly is positioned at the outside of this activity ratchet assembly, and this fixed ratchet wheel assembly is provided with at least one spacing hole, after can being stretched through thus for above-mentioned brake shank, is limited in rotating in the predetermined stroke.

This ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; The above-mentioned second spring fixing pin can be used as this brake shank; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

This first spring fixing pin and this braking plate predetermined gap of being separated by.

Also be provided with at least one spacing hole on this braking plate, after can being stretched through thus for this first spring fixing pin, be limited in rotating in the predetermined stroke.

This ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; The above-mentioned first spring fixing pin can be used as this brake shank; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

This second spring fixing pin and this braking plate predetermined gap of being separated by.

Also be provided with at least one spacing hole on this braking plate, after can being stretched through thus for this second spring fixing pin, be limited in rotating in the predetermined stroke.

This braking plate also comprises:

One axle bed, can be fixed on the above-mentioned axle shape driving component for wearing, above-mentioned shank perforation and spacing hole have axially been provided on it, and be provided with a spring tank in periphery wall, in confession one pressure spring and a clamp holder are installed in regular turn respectively, radially be provided with at least one pin-and-hole on its periphery wall, in can being installed on for a locating stud;

One outer ring seat, can be set on the said axle seat periphery wall, and axially provided at least one location cotter way on the inner circle wall, can hold for the locating stud on the above-mentioned axle bed periphery wall be limited in, using restriction should outer ring seat rotate, its inner circle wall is replaced by the clamp holder elasticity on this axle bed periphery wall more can, makes this outer ring seat when a pre-sizing responsive to axial force, is able to axial displacement on this axle bed; Should outer ring seat axially provide at least two slide openings between the medial and lateral ring wall near peripheral place, each sliding sleeve has a sleeve pipe in this slide opening, can suitably axially be promoted slippage in this slide opening, and wherein the length of this sleeve pipe is slightly larger than this slide opening degree of depth one segment distance; Be somebody's turn to do outer ring seat more axial at least two spring tanks that are concaved with on the inboard ring wall of locating near the periphery, and the built-in pressure spring that is provided with of each spring tank;

One brake block can be configured in the above-mentioned outer ring seat outside, and suitably abuts against mutually with its outside ring wall, and it is relative with sleeve pipe on the above-mentioned outer ring seat axially to be provided with at least two screws on it;

One block ring plate, can be configured in above-mentioned outer ring seat inboard, it is relative with sleeve pipe on the above-mentioned outer ring seat axially to be penetrated with at least two perforation on it, and the screw that can be respectively passes in regular turn behind above-mentioned perforation and the sleeve pipe with above-mentioned brake block by a caging bolt screws togather locking mutually, this block ring plate and above-mentioned brake block can be clipped respectively in this sleeve pipe, two ends, the outside, simultaneously, this block ring plate also can be subjected to the pressure spring of above-mentioned outer ring seat and replace toward interior side direction elasticity, and this sleeve pipe of interlock and brake block are toward interior side direction pushing and pressing displacement, abut against up to this brake block till the outside ring wall of ring seat outside this, and make this block ring plate can keep a free gap with the inboard ring wall of this outer ring seat under normal conditions;

Above-mentioned electromagnet can be by suitably assembling is fixing, and be positioned at outside the above-mentioned brake block, its inboard ring wall is provided with a lining, can keep size to equal a braking gap in above-mentioned free gap with above-mentioned brake block under normal conditions, and this electromagnet is in the magnetic effect of excitatory generation, this brake block can be attracted toward the electromagnet direction, and with its on relative lining phase mutual friction packing be braking state.

This colyliform driving component also has a bearing tank, can make above-mentioned axle shape driving component be able to wear a pivot mutually with this bearing at least one bearing is installed.

This colyliform driving component comprises a body and a limited ring; This body one side is concaved with a circular groove, and this circular groove inner circle wall can be in order to forming above-mentioned interlock wall, and this limited ring can assembledly be fixed in the circular groove outside of this body, but and its inboard ring wall of mat and this circular groove define above-mentioned clutch chamber jointly.

Above-mentioned ratchet assembly respectively has an axis hole, can supply to be set on the above-mentioned axle shape driving component, and its axis hole inner circle wall respectively is provided with two relative positioning grooves; This shape driving component has radially provided one first pin-and-hole and one second pin-and-hole respectively on two different axial positions; One locating stud optionally is installed on above-mentioned first pin-and-hole or second pin-and-hole, when being installed on this first pin-and-hole, these locating stud two ends can embed the positioning groove that is arranged in inboard above-mentioned ratchet assembly respectively, this inboard ratchet assembly and this shape driving component are linked mutually, and can be used as the said fixing ratchet assembly, the ratchet assembly in the outside is then as movable ratchet assembly; When being installed on second pin-and-hole, these locating stud two ends can embed the positioning groove of the ratchet assembly that is arranged in the outside respectively, this outside ratchet assembly and this shape driving component are linked mutually, and can be used as the said fixing ratchet assembly, inboard ratchet assembly is then as movable ratchet assembly.

This colyliform driving component is a belt pulley.

This shape driving component is an axostylus axostyle.

The present invention has following useful technique effect:

1, brake clutch provided by the present invention comprises the colyliform driving component of a tool clutch chamber and circle-shaped interlock wall; Shape driving component and colyliform driving component be the axle pivot mutually; Two are received the ratchet assembly that is limited in the clutch chamber, and it comprises a fixed ratchet wheel assembly that links mutually with axle shape driving component, and a movable ratchet assembly that can freely rotate on this shape driving component; Above-mentioned ratchet assembly periphery wall is respectively arranged with ratchet toward each other a plurality of but that direction is opposite, and defines one between wantonly two relative ratchets and hold the post groove, can for a plurality of snap studs optionally dispose be limited in; One snap studs ejecting device makes a colyliform driving component and an axle shape driving component produce a transmission of power effect in order to promote above-mentioned snap studs and the interlock wall is replaced mutually; One ratchet braking device rotates in order to the restraint ratchet assembly, makes above-mentioned snap studs break away from the interlock wall, to interrupt transmission of power effect, the pinning of simultaneously axle shape driving component being braked.

2, brake clutch provided by the present invention, utilize a plurality of snap studs to be snapped in the interlock wall and the formed wedge shape space of this each ratchet of fixed ratchet wheel assembly of this colyliform driving component by inlay card, except can between this colyliform driving component and axle shape driving component, carrying out transmission of power, planar friction structure compared to known employing lining, more can improve torsion output significantly, can be applied to the work of high torsion transmission of power especially, carry out, and improve workmanship to guarantee the stable of work.

3, colyliform driving component of the present invention links with the interlock to each other of axle shape driving component, can see through this ratchet braking device cooperates this snap studs ejecting device to reach in moment, and adopt the design of wedge shape occlusion structure, compared to known planar friction structure, the advantage that is difficult for producing sliding friction is more arranged, therefore, be difficult for producing abrasion to each other, torsion transmits usefulness and can keep for a long time, and long service life does not need frequent renewal part.

Description of drawings

Fig. 1 is the side cutaway view of known brake clutch seat.

Fig. 2 is the side cutaway view of first embodiment of the invention brake clutch.

Fig. 3 is the local appearance constitutional diagram of first embodiment of the invention brake clutch.

Fig. 4 is the sectional perspective exploded view of first embodiment of the invention brake clutch.

Fig. 5 is the colyliform driving component and the inner mounting assembly side cutaway view thereof of first embodiment of the invention.

Fig. 6 is the three-dimensional exploded view of first embodiment of the invention two ratchet assemblies.

Fig. 7 be first embodiment of the invention along movable ratchet assembly partial side, cross-sectional view radially, and show that this activity ratchet assembly is positioned at the outside of this fixed ratchet wheel assembly, and the snap studs ejecting device that comprises extension spring.

Fig. 8 is the ratchet braking device outward appearance constitutional diagram of first embodiment of the invention.

Fig. 9 is the ratchet braking device side plan view of first embodiment of the invention.

Figure 10 is the a-a sectional drawing of Fig. 8 of the present invention.

Figure 11 is the b-b sectional drawing of Fig. 8 of the present invention.

Figure 12 is the c-c sectional drawing of Fig. 8 of the present invention.

Figure 13 is the ratchet braking device side cutaway view of first embodiment of the invention, and shows a free gap and a braking gap.

Figure 14 forms the local enlarged diagram of a predetermined gap with the interlock wall before not by the effect of snap studs ejecting device for the first embodiment of the invention snap studs.

Figure 15 be the first embodiment of the invention snap studs under the effect of snap studs ejecting device with the local enlarged diagram of the mutual interlock of interlock wall.

Figure 16 is applied to the outward appearance constitutional diagram of a brake on the device seat for the first embodiment of the invention brake clutch.

Figure 17 is applied to the side cutaway view of a brake on the device seat for the first embodiment of the invention brake clutch.

Figure 18 is the ratchet assembly side plan view of second embodiment of the invention brake clutch, and shows that the fixed ratchet wheel assembly is positioned at the outside of this activity ratchet assembly, and the snap studs ejecting device that comprises extension spring.

Figure 19 is the fixed ratchet wheel components side planar view of third embodiment of the invention brake clutch, and shows the snap studs ejecting device that comprises an elasticity tension assembly.

Figure 20 is the partial side, cross-sectional view of fourth embodiment of the invention brake clutch, and shows the snap studs ejecting device that comprises a torsion type pressure spring.

Figure 21 is the local appearance constitutional diagram of fourth embodiment of the invention brake clutch, and shows the snap studs ejecting device that comprises a torsion type pressure spring.

Figure 22 is the torsion type pressure spring External view of Figure 20 of the present invention.

Embodiment

See also Fig. 2 to shown in Figure 5, the present invention is a kind of first embodiment of brake clutch, this brake clutch 1 mainly comprises a colyliform driving component 20, two bearings 30, shape driving component 40, two ratchet assemblies 50, a plurality of snap studs 60, a snap studs ejecting device 70, and a ratchet braking device 80; Below be at the explanation of above-mentioned composition member division.

About this colyliform driving component 20, mainly comprise a body 20a and a limited ring 20b; Wherein:

This body 20a, present embodiment are a belt pulley, and its periphery wall is provided with two pulley grooves 21, can turn by a belt that driven by motor; This body 20a one distolateral screw 22 that is provided with, the hole slot diapire fovea centralis of this screw 22 is provided with a circular groove 23, and the bottom land wall fovea centralis of this circular groove 23 is provided with a bearing tank 24, and the bottom land wall central authorities of this bearing tank 24 have provided a perforation 241.Above-mentioned circular groove 23 is circle-shaped inner circle wall and can be used as an interlock wall 231.

This limited ring 20b, can screw togather mutually with the screw 22 of above-mentioned body 20a affixed, but and its inboard ring wall 25 of mat define a clutch chamber 201 jointly with this circular groove 23.

About this bearing 30, can be mounted in the bearing tank 24 that is positioned above-mentioned colyliform driving component 20.

About this shape driving component 40, present embodiment is an axostylus axostyle, can run through by above-mentioned colyliform driving component 20, and with its inner 30 mutual pivots of above-mentioned bearing of installing.

Above-mentioned axle shape driving component 40 has radially provided one first pin-and-hole 41 and one second pin-and-hole 42 respectively on two different axial positions, and can for a locating stud 43 optionally sell the setting be arranged in a wherein pin-and-hole, the locating stud 43 of present embodiment is that installing and locating is in this first pin-and-hole 41.

About this ratchet assembly 50, shown in Fig. 6,7, can be received in the clutch chamber 201 that is limited in above-mentioned colyliform driving component 20, it comprises a fixed ratchet wheel assembly 51 and a movable ratchet assembly 52; Wherein:

This fixed ratchet wheel assembly 51, the fixed ratchet wheel assembly 51 of present embodiment is positioned at above-mentioned movable ratchet assembly 52 inboards, its central authorities have an axis hole 511, can be for being set on the above-mentioned axle shape driving component 40, and its axis hole 511 inner circle walls are provided with two relative positioning grooves 512, can embed for locating stud 43 2 ends of installing in above-mentioned axle shape driving component 40 first pin-and-holes 41 respectively and form snaps into position, this fixed ratchet wheel assembly 51 is linked be fixed on this shape driving component 40, and can suitably drive this shape driving component 40 rotations.

Said fixing ratchet assembly 51 periphery walls are formed with a plurality of ratchets 513, and present embodiment has nine ratchets 513, and wantonly two 513 of adjacent ratchets respectively are formed with a ratchet slot 514.

This activity ratchet assembly 52, the movable ratchet assembly 52 of present embodiment is positioned at said fixing ratchet assembly 51 outsides, its central authorities have an axis hole 521, can be for being set on the above-mentioned axle shape driving component 40, and its axis hole 521 inner circle walls are provided with two relative positioning grooves 522, the movable ratchet assembly 52 of present embodiment is that activity is set on this shape driving component 40, and can do thereon freely to rotate.

Above-mentioned movable ratchet assembly 52 periphery walls are formed with a plurality of ratchets 523, and present embodiment has nine ratchets 523, and wantonly two 523 of adjacent ratchets respectively are formed with a ratchet slot 524.Wherein, this activity ratchet assembly 52 is identical with ratchet 513,523 numbers with the specification size of fixed ratchet wheel assembly 51, but under assembled state, ratchet 513,523 directions of the two are just opposite, therefore, when above-mentioned ratchet assembly 50 each ratchet 513,523 depart from dislocation one rotation angle mutually, can define an appearance post groove 501 respectively by in office two 513,523 relative of ratchets, present embodiment can define an appearance post groove 501 coldest days of the year end altogether, and each appearance post groove 501 comes down to be made of ratchet slot 514,524 laps of two relative off normals.

About this snap studs 60, as shown in Figure 7, can optionally be disposed and be limited in the pre-constant volume post groove 501 of 50 of above-mentioned ratchet assemblies, present embodiment has six snap studs 60, and it is one group with two, on average be disposed in six appearance post grooves 501 with triangular shape, each 60 of snap studs of group is separated with two appearance post grooves 501 between just, but not as limit, in principle, respectively hold in the post groove 501, can reach the effect of average and stable occlusion power as long as can allow above-mentioned snap studs 60 on average be disposed at, because the appearance post groove 501 of present embodiment has nine, therefore, three, six and nine all is snap studs 60 quantity that can adopt, wherein, when adopting six snap studs 60, it on average can be disposed in three appearance post grooves 501 with triangular shape equally, and 60 of each snap studs are separated with two appearance post grooves 501, when adopting nine snap studs 60, then just can on average be disposed at each and hold in the post groove 501.

About this snap studs ejecting device 70, shown in Fig. 3,7, above-mentioned snap studs 60 suitably can be promoted to replace toward interlock wall 231 directions of above-mentioned colyliform driving component 20, make this colyliform driving component 20 can see through this snap studs 60 and link, and then produce the transmission of power effect with this shape driving component 40 with said fixing ratchet assembly 51 and the 52 mutual interlocks of movable ratchet assembly.What need special instruction is, as shown in the figure, the colyliform driving component 20 of present embodiment is for clockwise rotating, its sense of rotation is identical with ratchet 513 directions on this fixed ratchet wheel assembly 51, therefore, when above-mentioned snap studs 60 is pushed toward the interlock wall, and replace mutually when touching with interlock wall 231, these snap studs 60 periphery walls also can be snapped in these fixed ratchet wheel assembly 51 each ratchet slots 514 and these interlock wall 231 formed wedge shape spaces 502 by buckle simultaneously, as Figure 14, shown in 15, and the spin friction resistance that the sense of rotation of this colyliform driving component 20 is brought, just this snap studs 60 can be taken in the gradually narrow position of wedge shape space 502, make each other that card is tight more more, so can guarantee its tight interlock, from graphic, can know and see, the periphery wall of this snap studs 60 respectively is formed with a biting point P1 to each other with the cell wall of relative interlock wall 231 and ratchet slot 514, P2, and this wedge shape space 502 is positioned at this biting point P1, P2 clockwise direction place, be that the place, right side is formed with gradually narrow shape space, be snapped into so gradually narrow shape space by this snap studs 60, can reach tight clip interlock effect.

The snap studs ejecting device 70 of present embodiment includes three groups of spring fixing pins 71, and three extension springs 72, shown in Fig. 3,4,7; Above-mentioned each group spring fixing pin 71 has first a spring fixing pin 71a who is linked on these fixed ratchet wheel assembly 51 outer side surfaces, and second a spring fixing pin 71b who is linked on these activity ratchet assembly 52 outer side surfaces; Above-mentioned extension spring 72 can be mounted on above-mentioned 71 of the spring fixing pins of respectively organizing respectively, its elastic-restoring force of mat, normality ground sees through this spring fixing pin 71 said fixing ratchet assembly 51 is done opposite rotation toward predetermined direction each other with movable ratchet assembly 52, and interlock wall 231 directions of above-mentioned each snap studs 60 toward above-mentioned colyliform driving component 20 are promoted to replace.

Because the movable ratchet assembly 52 of present embodiment is in the outside of this fixed ratchet wheel assembly 51, therefore, this snap studs ejecting device 70 comprises that also three are arranged on and are the poroid spacing hole of rectangular arc 73 on this activity ratchet assembly 52, after can being stretched through thus for the above-mentioned first spring fixing pin 71a, be able in suitable stroke to do restriction and rotate, and above-mentioned extension spring 72 can be mounted between same group the first spring fixing pin 71a traversing through end and the second spring fixing pin 71b free end; Wherein, each first spring fixing pin 71a limits the stroke size of rotating in each spacing hole 73, in principle, is in contact with one another interlock with it, basic demand promptly according to the invention as long as be enough to make each snap studs 60 to be pushed these interlock wall 231 places of arrival.The snap studs ejecting device 70 of present embodiment can make this activity ratchet assembly 52 produce clockwise direction and rotate, as shown in figure 14, and by the cell wall of its each ratchet slot 513 and the pushing and pressing point P3 of each snap studs 60 formation, as shown in figure 15, each snap studs 60 can be pushed in the above-mentioned wedge shape space 502 that is narrow shape gradually, again by being interlock wall 231 rubbing actions that clockwise direction rotates, each snap studs 60 is successfully snapped in this wedge shape space 502, and card is tight more more, so, the power of this colyliform driving component 20 can be via its interlock wall 231, each snap studs 60, and this fixed ratchet wheel assembly 51 is passed on this shape driving component 40, makes it produce clockwise rotating as present embodiment.

The snap studs ejecting device 70 of present embodiment adopts three groups of spring fixing pins 71 and three extension springs 72, can make above-mentioned ratchet assembly 50 produce average and stable relatively rotating to each other; But not as limit, one group, two groups and three groups of above spring fixing pins 71 also can be set, and the extension spring 72 of corresponding number and above-mentioned

spacing hole

73,74, but, be preferable enforcement aspect still with three groups as if conditions such as the stability of taking all factors into consideration the application of force and production and processings.

About this ratchet braking device 80, as shown in Figure 8, can be in the power transmission process of above-mentioned colyliform driving component 20 and axle shape driving component 40, above-mentioned movable ratchet assembly 52 restrictions are rotated, by this, can force this snap studs 60 to break away from the interlock wall 231 of above-mentioned colyliform driving component 20 on the one hand, to interrupt above-mentioned transmission of power effect, another side also can see through these snap studs 60 inlay cards and fix this fixed ratchet wheel assembly 51, this fixed ratchet wheel assembly 51 also can be simultaneously rotated by restriction together, and then the above-mentioned axle shape driving component 40 that will link the mutually pinning of being braked.

The ratchet braking device 80 of present embodiment shown in Fig. 9 to 13, includes three brake shank 80a, braking plate 80b and an electromagnet 80c; Above-mentioned brake shank 80a can be linked on these activity ratchet assembly 52 outer side surfaces; This braking plate 80b is provided with three shank perforation 801, can pass thus for above-mentioned brake shank 80a; This electromagnet 80c can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate 80b, or by suitably demagnetization, make this braking plate 80b unclasp disengaging with it and be state free to rotate.

What need special instruction is, be simplified construction, present embodiment system directly with above-mentioned snap studs ejecting device 70 in order to be fixedly linked on each second spring fixing pin 71b on this activity ratchet assembly 52 as above-mentioned brake shank 80a, but for avoiding influencing the normal operation of this snap studs ejecting device 70, present embodiment is provided with three spacing holes 802 that are rectangular arc shape on this braking plate 80b, after this first spring fixing pin 71a is stretched through thus, be limited in rotating in the suitable stroke; But not as limit, another kind of feasible technological scheme, each the first spring fixing pin 71a extent of the protrusion that is fixedly linked on this fixed ratchet wheel assembly 51 slightly can be shorter than each second spring fixing pin 71b, make its terminal position be able to the predetermined gap of being separated by with this braking plate 80b, and be unlikely mutual interference and collision, by this, above-mentioned snap studs ejecting device 70 is carried out smoothly.

The ratchet braking device 80 of present embodiment is the friction fastening force that utilizes electromagnet 80c and braking plate 80b to produce when mutual magnetic to each other, make braking plate 80b together with the shank 80a that respectively brakes that passes on it, and the movable ratchet assembly 52 that provides this brake shank 80a to link is pinned by brake together, limit the purpose that this activity ratchet assembly 52 rotates to reach, yet, in order to make this electromagnet 80c and this braking plate 80b to each other after abrasion take place, can keep certain braking gap at any time, to keep good brake quality, the braking gap of present embodiment has the Automatic Fine Tuning function, for reaching this function, this braking plate 80b also comprises an axle bed 81, one outer ring seat 82, one brake block 83 and a block ring plate 84; Wherein:

This axle bed 81, has a tube wall 811, its inside is formed with an axis hole 812, can be fixed on the above-mentioned axle shape driving component 40 for wearing, these tube wall 811 medial extremitys radially are extended with a ring wall 813, can axially provide for above-mentioned shank perforation 801 and spacing hole 802, and be provided with a spring tank 814 in ring wall 813 periphery walls, in being installed in regular turn for a pressure spring 815 and a clamp holder 816, make this clamp holder 816 have elasticity and replace the packing effect; Also radially be provided with two pin-and-holes 817 on these ring wall 813 periphery walls, in being installed on for a locating stud 818 respectively with symmetric mode.

Be somebody's turn to do outer ring seat 82, have a trepanning 821, can supply to be set on said axle seat 81 periphery walls, and axially provided two location cotter ways 822 with symmetric mode on its inner circle wall, can hold for the locating stud 818 on above-mentioned axle bed 81 periphery walls be limited in, using restriction should outer ring seat 82 rotation; These trepanning 821 inner circle walls also can be subjected to the clamp holder 816 on these axle bed 81 periphery walls to give elasticity to replace, and make perforating part interdigit each other have the elasticity fastening force of a pre-sizing; By this, ring seat 82 is subjected to a responsive to axial force outside this, and when overcoming the suffered elasticity fastening force of its trepanning 821 inner circle walls, can suitably axial displacement on this axle bed 81.

Above-mentioned outer ring seat 82 has axially provided three slide openings 823 in the isogonism mode between the medial and lateral ring wall near peripheral place, and each sliding sleeve has a sleeve pipe 824 in this slide opening 823, can suitably axially be promoted slippage in this slide opening 823, wherein the length of this sleeve pipe 824 is slightly larger than this slide opening 823 degree of depth one segment distance.

Above-mentioned outer ring seat 82 more axially is concaved with three spring tanks 825 in the isogonism mode on the inboard ring wall near peripheral place, and each spring tank 825 built-in pressure spring 826 that are provided with.

This brake block 83 can be configured in the outside of above-mentioned outer ring seat 82, and suitably abuts against mutually with its outside ring wall, and it is relative with sleeve pipe 824 on the above-mentioned outer ring seat 82 more axially to be provided with three screws 831 in the isogonism mode on it.

This block ring plate 84, can be configured in the inboard of above-mentioned outer ring seat 82, it is relative with sleeve pipe 824 on the above-mentioned outer ring seat 82 axially to be penetrated with three perforation 841 in the isogonism mode on it, and after can passing a packing ring 843 by a caging bolt 842 respectively, pass above-mentioned perforation 841 and sleeve pipe 824 in regular turn, and screw togather locking mutually with the screw 831 of above-mentioned brake block 83, this block ring plate 84 can be clipped respectively in this sleeve pipe 824 with above-mentioned brake block 83, two ends, the outside, at this moment, because can being subjected to the pressure spring 826 of above-mentioned outer ring seat 82, this block ring plate 84 replaces toward interior side direction elasticity, therefore, above-mentioned block ring plate 84 can be pushed against displacement together with sleeve pipe 824 and brake block 83 toward interior side direction, till the outside ring wall of ring seat 82 abuts against mutually up to this brake block 83 and outside being somebody's turn to do, so this brake block 83 can remain in the state of abutting against with the outside ring wall of this outer ring seat 82 under normal conditions; Wherein, because the length of this sleeve pipe 824 is designed greater than this slide opening 823 1 segment distances, therefore, this block ring plate 84 can keep a free gap S1 with the inboard ring wall of this outer ring seat 82 under normal conditions, as shown in figure 13.

This electromagnet 80c, can be by suitably assembling is fixing, and be positioned at above-mentioned brake block 83 outsides, its inboard ring wall is provided with in the form of a ring a lining 85 at relative these brake block 83 places, this lining 85 under normal conditions, can keep a braking gap S2 with above-mentioned brake block 83, as shown in figure 13, wherein this braking gap S2 equals above-mentioned free gap S1; When this electromagnet 80c when excitatory, can produce the magnetic effect, this brake block 83 is attracted toward electromagnet 80c direction, make this brake block 83 produce packings mutually with relative lining on it 85, and the surface friction drag that produces during by packing, the whole braking plate 80b that will comprise this brake block 83 pinning of being braked, and then reach and limit the purpose that this activity ratchet assembly 52 rotates.

What need special instruction is, the present invention is not subjected under the situation of any abrasion as yet at lining 85 and the brake block 83 of above-mentioned electromagnet 80c, when the mutual packing of the lining 85 of brake block 83 and electromagnet 80c, this block ring plate 84 also will abut against mutually with the outside ring wall of this outer ring seat 82, but when lining 85 or brake block 83 produce the abrasion attenuation in use for some time, the braking gap S2 that this brake block 83 and lining are 85 will enlarge, therefore, by above-mentioned outer ring seat 82 when the pre-sizing responsive to axial force, can be on this axle bed 81 the suitable structural design of axial displacement, when brake block 83 is abutted against mutually by the lining 85 on magnetic and this electromagnet 80c once more, can promote to be somebody's turn to do the suitably past lateral direction displacement on this axle bed 81 of outer ring seat 82 by this block ring plate 84 of interlock, and reach the effect of the above-mentioned braking gap S2 of Automatic Fine Tuning.

Shown in Figure 16,17, brake clutch 1 of the present invention can be applied on the automatic lathe especially, in order to forming a brake clutch seat 2, and provides processing operations such as tapping or boring required transmission of power control.During assembling, can with axle shape driving component 40 2 ends on this brake clutch 1 respectively an axle pivot be positioned be coupling 911 at position of two of a fixed base 91 apart intended distances, and at the affixed output wheel 92 of an end upper sleeve through of these shape driving component 40 relative these colyliform driving components 20, one belt is installed simultaneously, in order to motor power is passed on this colyliform driving component 20 between this a colyliform driving component 20 and a motor output shaft.The ratchet braking device 80 of brake clutch 1 of the present invention, its electromagnet 80c is in excitatory state, and should be limited rotation by activity ratchet assembly 52, therefore, can use the above-mentioned snap studs 60 of control and be in the states that the interlock wall 231 with this colyliform driving component 20 breaks away from mutually, make this colyliform driving component 20 can only produce idle running under normal conditions, and can't be with transmission of power to output wheel 92; And when brake clutch 1 is desired to carry out transmission of power, only need electromagnet 80c demagnetization, the restriction rotation of this activity ratchet assembly 52 is disengaged, the action that above-mentioned snap studs 60 just can be subjected to above-mentioned arbitrary embodiment's snap studs ejecting device 70 is resisted against on this interlock wall 231 toward outer displacement, make this colyliform driving component 20, each snap studs 60 and fixed ratchet wheel assembly 51 inlay card interlock each other form integrative-structure, so, the transmission of power of this colyliform driving component 20 can be sent on the axle shape driving component 40 of mutual binding via this fixed ratchet wheel assembly 51, the output wheel 92 that links via the end is sent to and carries out tapping and bore operation on tapping or the drilling tool again.When tapping or when holing to predetermined stroke, only need to see through again the excitatory generation braking action of electromagnet 80c, make this activity ratchet assembly 52 be limited once more to rotate, can interrupt transmission of power immediately, and with the idling conditions under these colyliform driving component 20 answer normalities, at this moment, as mentioned above, because the workpiece of automatic lathe is still at rotary state, therefore, the backward rotation that the cutter that is pinned by brake can produce by the workpiece in rotating, and withdraw from the disengaging workpiece automatically, and finish the processing operation of workpiece.

The brake clutch 1 of second embodiment of the invention is roughly identical with above-mentioned first embodiment, and its difference is:

First: above-mentioned locating stud 43 is to be mounted second pin-and-hole 42 that is positioned this shape driving component 40, make the axis hole 521 positioned internal grooves 522 of above-mentioned movable ratchet assembly 52, can embed for these locating stud 43 2 ends respectively and form snaps into position, simultaneously, the said fixing ratchet assembly 51 that makes above-mentioned first embodiment be linked to this shape driving component 40 originally loses the snaps into position of locating stud 43, and is state free to rotate.By this, the user can see through the selectivity conversion of above-mentioned locating stud 43 between 42 2 different axial positions of this first pin-and-hole 41 and second pin-and-hole easily, be for conversion into movable ratchet assembly 52 with being positioned at inboard fixed ratchet wheel assembly 51 originally, the movable ratchet assembly 52 that will be positioned at the outside simultaneously originally is for conversion into fixed ratchet wheel assembly 51.

Second: above-mentioned snap studs ejecting device 70 comprises that three are arranged on and are the poroid spacing hole of rectangular arc 74 on this fixed ratchet wheel assembly 51, as shown in figure 18, after can being stretched through thus for the above-mentioned second spring fixing pin 71b, be limited in rotating in the predetermined stroke, and above-mentioned extension spring 72 can be mounted between same group the second spring fixing pin 71b traversing through end and the first spring fixing pin 71a free end.

The the 3rd: can successfully pass from this fixed ratchet wheel assembly 51 for making the above-mentioned above-mentioned brake shank 80a that is linked on these activity ratchet assembly 52 outer side surfaces, this fixed ratchet wheel assembly 51 is provided with three spacing holes 803 that are rectangular arc shape, can be stretched through thus respectively for the above-mentioned shank 80a that respectively brakes, and can be limited in suitably rotating in the stroke, be unlikely the running of the above-mentioned snap studs ejecting device 70 of influence simultaneously.But for simplified construction, can directly utilize this snap studs ejecting device 70 in order to being fixedly linked on each second spring fixing pin 71b on this activity ratchet assembly 52 equally as above-mentioned brake shank 80a, and to provide above-mentioned spacing hole 74 that each second spring fixing pin 71b passes through as the spacing hole 803 that passes through for each brake shank 80a on this fixed ratchet wheel assembly 51.

The brake clutch 1 of second embodiment of the invention is compared to first embodiment, ratchet 513 directions of both fixed ratchet wheel assemblies 51 are just identical, therefore, still can bring into play interlocking for making above-mentioned snap studs 60 at 231 on the interlock wall of this fixed ratchet wheel assembly 51 and colyliform driving component 20, the essential sense of rotation that changes first embodiment's colyliform driving component 20, just first embodiment of Figure 12 being colyliform driving component 20 that clockwise direction rotates changes over counterclockwise and rotates, see through such change, can be with via this colyliform driving component 20, the sense of rotation that snap studs 60 and fixed ratchet wheel assembly 51 are passed on this shape driving component 40 is inverted, therefore, with respect to first embodiment's positive tooth processing, present embodiment can be applied to anti-tooth processing.Wherein, the backward rotation of above-mentioned colyliform driving component 20 can see through the sense of rotation of oppositely switching drive motor easily and reach, and this part belongs to known techniques.

The brake clutch 1 of third embodiment of the invention is roughly identical with above-mentioned first embodiment, its difference only is: this snap studs ejecting device 70 comprises an elasticity tension assembly 75, as shown in figure 19, it can be has two free-ended metal wreaths, as forming with the metal wire rod bending, or suitably cut with pressure spring and to form, or form with the metal clips bending.This elasticity tension assembly 75 can be mounted and be limited on above-mentioned

arbitrary ratchet assembly

50 or 50 of above-mentioned ratchet assemblies, its elastic dilatation power outward of mat, and normality ground is replaced above-mentioned each snap studs 60 toward the interlock wall 231 directions promotion of colyliform driving components 20.

The elasticity tension assembly 75 of present embodiment can be mounted and be limited in 50 of above-mentioned ratchet assemblies, for reaching this purpose, this snap studs ejecting device 70 also includes an annular recess 761 that is separately positioned on said fixing ratchet assembly 51 and the movable ratchet assembly 52 opposite side walls, 762, as Fig. 5, shown in 6, can define an annular chamber 77 jointly, and above-mentioned annular recess 761,762 with respect to each ratchet slot 514,524 places and this ratchet slot 514,524 are connected, by this, this elasticity tension assembly 75 can be held being limited in this annular chamber 77, and make its normality ground be positioned at each ratchet slot 514 through these connection place pushing and pressing, above-mentioned snap studs 60 in 524.

Shown in Figure 20 to 22, the brake clutch 1 of fourth embodiment of the invention is roughly identical with above-mentioned first and second embodiment, its difference only is: this snap studs ejecting device 70 comprises a torsion type pressure spring 78, its body is similar with general pressure spring, but two ends are positioned at the same side, and each the self-forming one tension force end 781 of mode radially to extend near body; By this, this torsion type pressure spring 78 can be set on the shape driving component 40 of 81 of above-mentioned movable ratchet assembly 52 and this ratchet braking device 80 axle beds being positioned at the outside, or be positioned on the shape driving component 40 of 80 of said fixing ratchet assembly 51 and this ratchet braking device 80 axle beds in the outside, make the movable ratchet assembly 52 or the fixed ratchet wheel assembly 51 that are positioned at the outside replaced by its elasticity, and keep fitting mutually with fixed ratchet wheel assembly 51 that is positioned at the inboard or movable ratchet assembly 52, to prevent that it from touching above-mentioned limited ring 20b, simultaneously, more its tension force end 781 can be disposed between one second spring fixing pin 71b of above-mentioned wherein one first spring fixing pin 71a and adjacent side, make this second spring fixing pin 71b can be subjected to relative tension end 781 to replace effect toward predetermined direction elasticity, relatively rotate with this fixed ratchet wheel assembly 51 and drive this activity ratchet assembly 52, and then reach above-mentioned each snap studs 60 toward interlock wall 231 directions pushing and pressing displacement, to produce the effect of interlocking.Certainly, present embodiment also can only dispose one group of spring fixing pin 71, and need not dispose three groups.

Brake clutch 1 of the present invention, because colyliform driving component 20 is to see through a plurality of snap studs 60 to be brought into the tight packing effect that produces in its interlock wall 231 and these fixed ratchet wheel assembly 51 each relative ratchet slot 514 formed wedge shape spaces 502 when this colyliform driving component 20 rotates with axle shape driving component 40 to each other, therefore, can produce good inlay card interlock effect, planar friction structure compared to known lining, can improve transmission of power usefulness significantly, can be applied to transmitting high torsion power output services especially, for example boring, processing such as tapping operation, so it is known because of torsion output deficiency to be unlikely generation, cause the situation that the work interruption is stopped and cutter is impaired, so work can be smooth and easy and be stably carried out, and then guarantee the quality of work and the life-span of cutter.

Colyliform driving component 20 of the present invention links with axle shape driving component 40 interlock to each other, can be in the electromagnet 80c of this ratchet braking device 80 demagnetization moment, cooperate this snap studs ejecting device 70 to reach, and adopt the design of wedge shape occlusion structure, compared to the structure of known planar friction, the advantage that is difficult for producing sliding friction is more arranged, therefore, be difficult for producing abrasion to each other, torsion transmits usefulness and can keep for a long time, long service life does not need frequent renewal part.

Colyliform driving component 20 of the present invention and axle shape driving component 40 transmission of power to each other, the brake pinning effect that system produces when excitatory by the electromagnet 80c of this ratchet braking device 80, forcing movable ratchet assembly 52 in the rotation to be interrupted institute reaches, therefore, compared to the known structural design of utilizing the demagnetization mode to brake, the present invention just can not be subjected to the influence of erasing time length, more there is not the high electromagnetic force of known employing to make power interruption time produce the phenomenon of delaying easily, so can accurately stably control power interruption time, workmanship is significantly improved, with tapping, procedure for processing such as boring are example, can improve tapping significantly, the precision of drilling depth.

In sum, the present invention is real in like product splendid progressive practicability, looks through domestic and international technical data and document about this class formation simultaneously, also finds no identical construction and is present in elder generation.

Yet the above only is several preferable possible embodiments of the present invention, so the equivalent structure that all acts application specification of the present invention and claim are done changes, ought to be included in the claim of the present invention.

Claims

1. a brake clutch is characterized in that, comprising:

2. brake clutch as claimed in claim 1 is characterized in that, this snap studs ejecting device comprises at least one group of spring fixing pin, and at least one extension spring; Above-mentioned each group spring fixing pin has first a spring fixing pin that is linked on this fixed ratchet wheel assembly outer side surface, and second a spring fixing pin that is linked on this activity ratchet assembly outer side surface; Above-mentioned extension spring can be mounted on respectively between arbitrary group of spring fixing pin, its elastic-restoring force of mat, normality ground sees through this spring fixing pin the said fixing ratchet assembly is done opposite rotation toward predetermined direction each other with movable ratchet assembly, and the interlock wall direction of above-mentioned each snap studs toward above-mentioned colyliform driving component promoted to replace.

3. brake clutch as claimed in claim 2, it is characterized in that, this activity ratchet assembly is in the outside of this fixed ratchet wheel assembly, and it is provided with at least one spacing hole, after can being stretched through thus for the above-mentioned first spring fixing pin, be able in predetermined stroke to do restriction and rotate, above-mentioned extension spring can be mounted between same group the first spring fixing pin traversing through end and this second spring fixing pin free end simultaneously.

4. brake clutch as claimed in claim 2, it is characterized in that, this fixed ratchet wheel assembly is in the outside of this activity ratchet assembly, and it is provided with at least one spacing hole, after can being stretched through thus for the above-mentioned second spring fixing pin, be limited in rotating in the predetermined stroke, above-mentioned extension spring can be mounted between same group the second spring fixing pin traversing through end and this first spring fixing pin free end simultaneously.

5. brake clutch as claimed in claim 1, it is characterized in that, this snap studs ejecting device comprises that one installs the elasticity tension assembly that is limited on the above-mentioned ratchet assembly, its elastic dilatation power outward of mat, normality ground is replaced above-mentioned each snap studs toward the interlock wall direction promotion of colyliform driving component.

6. brake clutch as claimed in claim 5 is characterized in that, this elasticity tension assembly is installed and is limited between said fixing ratchet assembly and movable ratchet assembly.

7. brake clutch as claimed in claim 6, it is characterized in that, respectively be provided with an annular recess on the opposite side wall of this activity ratchet assembly and fixed ratchet wheel assembly, can define an annular chamber jointly, for this elasticity tension assembly hold be limited in, and above-mentioned annular recess is connected with this ratchet slot at each the ratchet slot place that is defined between wantonly two adjacent ratchets with respect to it, use making the above-mentioned elasticity tension assembly that is contained in this annular chamber, normality ground sees through the above-mentioned snap studs that these connection place pushing and pressing are positioned at each ratchet slot.

8. brake clutch as claimed in claim 5 is characterized in that, this elasticity tension assembly is one to have two free-ended metal wreaths.

9. brake clutch as claimed in claim 1 is characterized in that, this snap studs ejecting device comprises one group of spring fixing pin, and a torsion type pressure spring; Above-mentioned spring fixing pin has first a spring fixing pin that is linked on this fixed ratchet wheel assembly outer side surface, and second a spring fixing pin that is linked on this activity ratchet assembly outer side surface; Above-mentioned torsion type pressure spring can be set on this shape driving component, and have two free ends that are positioned at homonymy, can form a tension force end respectively, in order to be disposed between the above-mentioned first spring fixing pin and the second spring fixing pin, the torsion that its elasticity of mat is opened outward, normality ground sees through this spring fixing pin the said fixing ratchet assembly is done opposite rotation toward predetermined direction each other with movable ratchet assembly, and the interlock wall direction of above-mentioned each snap studs toward above-mentioned colyliform driving component promoted to replace.

10. brake clutch as claimed in claim 9, it is characterized in that, this activity ratchet assembly is in the outside of this fixed ratchet wheel assembly, and it is provided with a spacing hole, after can being stretched through thus for the above-mentioned first spring fixing pin, be able to do restriction and rotate in predetermined stroke, each tension force end of above-mentioned torsion type pressure spring can be configured between the above-mentioned first spring fixing pin traversing through end and this second spring fixing pin free end simultaneously.

11. brake clutch as claimed in claim 9, it is characterized in that, this fixed ratchet wheel assembly is in the outside of this activity ratchet assembly, and it is provided with a spacing hole, after can being stretched through thus for the above-mentioned second spring fixing pin, be limited in rotating in the predetermined stroke, each tension force end of above-mentioned torsion type pressure spring can be configured between the above-mentioned second spring fixing pin traversing through end and this first spring fixing pin free end simultaneously.

12. brake clutch as claimed in claim 9, it is characterized in that, this torsion type pressure spring can and be limited in the ratchet assembly in the above-mentioned outside by axial compression suitably, and between this relative position of ratchet braking device, make the outside the ratchet assembly normality replaced by its elasticity spacing.

13. brake clutch as claimed in claim 1 is characterized in that, this ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; Above-mentioned brake shank is linked on this activity ratchet assembly outer side surface; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

14. brake clutch as claimed in claim 13 is characterized in that, this activity ratchet assembly is positioned at the outside of this fixed ratchet wheel assembly.

15. brake clutch as claimed in claim 13, it is characterized in that, this fixed ratchet wheel assembly is positioned at the outside of this activity ratchet assembly, and this fixed ratchet wheel assembly is provided with at least one spacing hole, after can being stretched through thus for above-mentioned brake shank, be limited in rotating in the predetermined stroke.

16. brake clutch as claimed in claim 3 is characterized in that, this ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; The above-mentioned second spring fixing pin can be used as this brake shank; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

17. brake clutch as claimed in claim 16 is characterized in that, this first spring fixing pin and this braking plate predetermined gap of being separated by.

18. brake clutch as claimed in claim 16 is characterized in that, also is provided with at least one spacing hole on this braking plate, after can being stretched through thus for this first spring fixing pin, is limited in rotating in the predetermined stroke.

19. brake clutch as claimed in claim 4 is characterized in that, this ratchet braking device comprises at least one brake shank, a braking plate and an electromagnet; The above-mentioned first spring fixing pin can be used as this brake shank; This braking plate is provided with at least one shank perforation, can pass thus for above-mentioned brake shank; This electromagnet can be by suitably excitatory, combines with its mutual magnetic and be braking state to control this braking plate, or by suitably demagnetization, make this braking plate unclasp disengaging with it and be state free to rotate.

20. brake clutch as claimed in claim 19 is characterized in that, this second spring fixing pin and this braking plate predetermined gap of being separated by.

21. brake clutch as claimed in claim 19 is characterized in that, also is provided with at least one spacing hole on this braking plate, after can being stretched through thus for this second spring fixing pin, is limited in rotating in the predetermined stroke.

22., it is characterized in that this braking plate also comprises as claim 16 or 19 described brake clutch:

23. brake clutch as claimed in claim 1 is characterized in that, this colyliform driving component also has a bearing tank, can make above-mentioned axle shape driving component be able to wear a pivot mutually with this bearing at least one bearing is installed.

24. brake clutch as claimed in claim 1 is characterized in that, this colyliform driving component comprises a body and a limited ring; This body one side is concaved with a circular groove, and this circular groove inner circle wall can be in order to forming above-mentioned interlock wall, and this limited ring can assembledly be fixed in the circular groove outside of this body, but and its inboard ring wall of mat and this circular groove define above-mentioned clutch chamber jointly.

25. brake clutch as claimed in claim 1 is characterized in that, above-mentioned ratchet assembly respectively has an axis hole, can supply to be set on the above-mentioned axle shape driving component, and its axis hole inner circle wall respectively is provided with two relative positioning grooves; This shape driving component has radially provided one first pin-and-hole and one second pin-and-hole respectively on two different axial positions; One locating stud optionally is installed on above-mentioned first pin-and-hole or second pin-and-hole, when being installed on this first pin-and-hole, these locating stud two ends can embed the positioning groove that is arranged in inboard above-mentioned ratchet assembly respectively, this inboard ratchet assembly and this shape driving component are linked mutually, and can be used as the said fixing ratchet assembly, the ratchet assembly in the outside is then as movable ratchet assembly; When being installed on second pin-and-hole, these locating stud two ends can embed the positioning groove of the ratchet assembly that is arranged in the outside respectively, this outside ratchet assembly and this shape driving component are linked mutually, and can be used as the said fixing ratchet assembly, inboard ratchet assembly is then as movable ratchet assembly.

26. brake clutch as claimed in claim 1 is characterized in that, this colyliform driving component is a belt pulley.

27. brake clutch as claimed in claim 1 is characterized in that, this shape driving component is an axostylus axostyle.