CN101041187B - Manual locking drill chuck - Google Patents
Manual locking drill chuck Download PDFInfo
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- CN101041187B CN101041187B CN2006100654383A CN200610065438A CN101041187B CN 101041187 B CN101041187 B CN 101041187B CN 2006100654383 A CN2006100654383 A CN 2006100654383A CN 200610065438 A CN200610065438 A CN 200610065438A CN 101041187 B CN101041187 B CN 101041187B
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- cover
- ratchet
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- flower
- location division
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Abstract
The invention discloses a manual locking drill chuck, comprising drill body with multiple equal division oblique holes on the round direction, claws set in oblique holes, split nuts connected with claws in screw thread and outer sleeve. Flower sleeve is fixed on the outer sleeve. Retainer sleeve is set on the split nut. On the inner side at the top of retainer sleeve retainer claw is set to prevent claws retreating excessively and in addition, pawl for locking retainer sleeve and location part for preventing outer sleeve retreating to loosen retainer sleeve are set. It possesses loosening action. It can be used for a long time and there is no need to clamp repeatedly.
Description
Technical field
The present invention relates to a kind of throw clamping device, especially a kind of manual locking drill chuck.
Background technology
Traditional throw clamping device is used for clamping various throws, for example drill bit, reamer, screw tap etc.These throws are claimed chuck again.Typical chuck, for example drill chuck comprises drill body, a plurality of (for example, three) jaw, nut, overcoat etc., also comprises the back cover sometimes.In addition, some chuck also comprises bearing assembly, is used to reduce friction.A plurality of jaws are installed in respectively in the inclined hole of a plurality of mutual five equilibriums in the drill body.Nut is arranged in the nut groove of drill body, and forms thread transmission with the threaded engagement of jaw.Overcoat is set on the nut (also being arranged with nut sleeve in some cases on the nut).Put outward and have key, have on the nut and the corresponding keyway of key, so that overcoat can be connected with nut sleeve (nut) through key.
In use, manual rotary sleeve, overcoat and then drive nut cover and/or nut, nut drives jaw and in the inclined hole of drill body, moves forward and backward then, thereby three jaws is opened or closed, unclamps or clamping tool realizing.
Have the threaded portion that cutting forms along side on the jaw of this chuck, have screw thread clearing end plane at the front end of this threaded portion.Unclamp the direction rotation when the nut edge, when being driven into jaw near extreme position backward, the screw thread clearing end plane of jaw and the screw thread end face of nut are frictionally engaged, and recline each other.Being further rotated of nut will make these two face excessive compression and produce very big frictional force.Therefore,, bring inconvenience, stuck phenomenon can occur sometimes even also to use when during with clamping tool, must at first overcoming this frictional force along clamping direction rotation nut.In addition, this frictional force also can increase the wearing and tearing of screw thread, influences the service life of chuck.
In addition when the drill chuck rotary work, because impact shock and inertia force, drill chuck nut and overcoat when rotated unclamps easily gradually, thereby causes jaw back off tool handle, causes work undesired.
Summary of the invention
Main purpose of the present invention overcomes the defective of prior art, and a kind of manual locking drill chuck is provided, and not only has to prevent that jaw from retreating into the stopping pawl of extreme position, but also has the monodirectional locking ratchet that prevents that nut from unclamping.
Another object of the present invention provides has the nut of preventing when unclamping, and also is provided with the location division that prevents that overcoat from unclamping.
A further object of the invention is to provide the manual locking drill chuck with indication locking effect.
In order to achieve the above object; Manual locking drill chuck of the present invention is provided with flower cover and stopping cover; And flower cover is fixedly connected with overcoat, stopping cover and divide body nut to be fixedly connected, the zone of action of the inboard formation stopping pawl that stopping overlaps and be provided with and prevent that jaw from retreating into the stopping pawl of extreme position; The outside of stopping cover or the parts that are connected with the motion of stopping cover are provided with the ratchet that prevents that the stopping pawl from retreating; Put at stopping in addition and hinder the location division that the relative stopping cover of flower cover is retreated also can be provided with at jaw clamping tool handle the time, further, the engagement through control ratchet and ratchet reaches the indication locking function.
Compared with prior art, the present invention has the following advantages: owing to be provided with the stopping cover, make and divide body nut and a plurality of jaw to have reliable screw thread transmission that the jaw of manual locking drill chuck can excessively not retreated in addition, causes friction or stuck.Because stopping cover or the parts that are fixedly connected with the stopping cover are provided with ratchet, thereby prevent that work termination drill drift from unclamping, stopping puts also and can establish the location division in addition; Prevent overcoat in the course of the work owing to inertia force is retreated the engagement of unclamping ratchet and ratchet, further, in the locking process; When jaw is clamped pad, during the location division transposition of the relative stopping cover of flower cover, the control part of flower cover is just thrown off ratchet; Make ratchet and ratchet engagement; Continue afterburning rotating jacket like this, ratchet is beated on ratchet, thus indication locking.
Description of drawings
Fig. 1 shows the cutaway view of manual locking drill chuck first embodiment of the present invention;
Fig. 2 is the cutaway view of manual locking drill chuck shown in Figure 1 along the A-A line, and wherein drill chuck is in unlocked state;
Fig. 3 is the cutaway view of manual locking drill chuck shown in Figure 1 along the A-A line, and wherein drill chuck is in the lock state;
Fig. 4 shows the ratchet combination back cover of manual locking drill chuck first embodiment of the present invention;
Fig. 5 is the cutaway view that ratchet combination back shown in Figure 4 is overlapped;
Fig. 6 shows the flower cover of manual locking drill chuck first embodiment of the present invention;
Fig. 7 is that flower shown in Figure 6 overlaps the cutaway view along the A-A line;
Fig. 8 shows the cutaway view of the overcoat of manual locking drill chuck of the present invention;
Fig. 9 shows the overcoat of manual locking drill chuck of the present invention and the assembly structure of flower cover;
Figure 10 shows the vertical view of the stopping cover of manual locking drill chuck first embodiment of the present invention;
Figure 11 is that stopping shown in Figure 10 overlaps the cutaway view along the B-B line;
Figure 12 is that stopping shown in Figure 10 overlaps the cutaway view along the C-C line;
Figure 13 shows the vertical view of the location coupling ring of manual locking drill chuck of the present invention;
Figure 14 is the cutaway view of location shown in Figure 13 coupling ring;
Figure 15 shows the vertical view of the branch body nut of manual locking drill chuck of the present invention;
Figure 16 is the cutaway view of shown in Figure 15 minute body nut;
Figure 17 shows the cutaway view of manual locking drill chuck second embodiment of the present invention;
Figure 18 is the cutaway view of manual locking drill chuck shown in Figure 17 along the A-A line, and wherein drill chuck is unlocked;
Figure 19 is the cutaway view of manual locking drill chuck shown in Figure 17 along the A-A line, and wherein drill chuck is in locking state;
Figure 20 shows the vertical view of the planetary wheel carrier of manual locking drill chuck second embodiment of the present invention;
Figure 21 is the cutaway view of planetary wheel carrier shown in Figure 20;
Figure 22 shows the flower cover of manual locking drill chuck second embodiment of the present invention;
Figure 23 is the cutaway view of flower cover shown in Figure 22 along the J-J line;
Figure 24 shows the vertical view that manual locking drill chuck second embodiment of the present invention ends drill drift;
Figure 25 is the cutaway view of stopping cover shown in Figure 24;
Figure 26 shows the vertical view of binding ring among manual locking drill chuck second embodiment of the present invention;
Figure 27 is the upward view of binding ring shown in Figure 26;
Figure 28 is the cutaway view of binding ring shown in Figure 26;
Figure 29 shows the ring gear of manual locking drill chuck second embodiment of the present invention;
Figure 30 is the cutaway view of ring gear shown in Figure 29 along the D-D line;
Figure 31 shows the cutaway view of manual locking drill chuck the 3rd embodiment of the present invention;
Figure 32 is the cutaway view of manual locking drill chuck shown in Figure 31 along the E-E line, and wherein drill chuck is in unlocked position;
Figure 33 is the cutaway view of manual locking drill chuck shown in Figure 31 along the E-E line, and wherein drill chuck is in latched position;
Figure 34 shows the vertical view of flower cover among manual locking drill chuck the 3rd embodiment of the present invention;
Figure 35 is the cutaway view of flower cover shown in Figure 34 along the G-G line;
Figure 36 shows the stopping cover of manual locking drill chuck the 3rd embodiment of the present invention;
Figure 37 is the cutaway view of stopping cover shown in Figure 36 along the F-F line;
Figure 38 shows the compound back cover among manual locking device the 3rd embodiment of the present invention;
Figure 39 is the cutaway view of compound back shown in Figure 38 cover along the H-H line;
Figure 40 shows the cutaway view of manual locking device the 3rd embodiment of the present invention, comprising the overcoat of another kind of structure;
Figure 41 is an overcoat and the assembling relationship figure of spending cover among Figure 40;
Figure 42 is the cutaway view of overcoat shown in Figure 41 along the K-K line;
Figure 43 is the cutaway view of the flower cover among Figure 40;
Figure 44 is the cutaway view of flower cover shown in Figure 43 along the L-L line;
Below in conjunction with accompanying drawing and embodiment hand drill chuck of the present invention is specified.
The specific embodiment
The drill body 1 of foundation manual locking drill chuck of the present invention has the inclined hole of the circumferential five equilibrium in a plurality of edges, is provided with jaw 3 in the hole, and jaw 3 peripheries are set with branch body nut 2; Divide between body nut 2 and the jaw 3 through being threaded, thereby branch body nut 2 is when drill body 1 rotates, the jaw that is threaded with minute body nut 23 seesaws along inclined hole; Thereby unclamp or step up pad, like drill bit, reamer etc., the rear end of drill body 1 is connected to the driving shaft of power source; Thereby the driving shaft of power source drives the drill chuck rotation, in addition, divides between body nut 2 and the drill body 1 also can add bearing assembly 10; Reduce owing to rotate the frictional resistance that produces relatively; Thereby make the rotation of branch body nut 2 relative drill bodies 1 more flexible,, do not do to launch in detail explanation at this because said structure is well known to those skilled in the art.Introduce three specific embodiments of manual locking drill chuck of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 to Figure 16 shows manual locking drill chuck first embodiment of the present invention.
Among first embodiment, manual locking drill chuck comprises drill body 1, branch body nut 2, jaw 3, ratchet combination back cover 4, overcoat 5, front shroud 6, the ring 7 that is located by connecting, spends cover 8, stopping cover 9 and bearing assembly 10.
Fig. 4, Fig. 5 show ratchet combination back cover 4, its for cover shape, madial wall is provided with ratchet 41, be sleeved on the drill body 1 through the connecting portion 42 that is positioned at the middle part, and on drill body 1, circumferentially locate (as shown in Figure 1) through the connector 421 on the connecting portion.Fig. 6, Fig. 7 show flower cover 8; Its lower wall portion divides formation a plurality of connecting keys 814; And upper wall portion form to drive key 813, location division 811 and control part 812, and wherein location division 811 is protruded into to the inside by the flower jacket wall and forms, and a lateral edges of 811 circumferentially extends control part 812 in the location division; Control part 812 and drive between the key 813 and have gap, such driving key, location division and connecting key have three groups and be uniformly distributed with in the present embodiment.Certainly do not establish and drive key 813, the shape that also can have other of location division 811 can also be provided with group number inequality in addition as required, like one group, two groups or many groups.
Fig. 8 shows overcoat 5; It is sleeved on the drill body 1; The upper end madial wall is provided with the link slot 52 that connecting key 814 a plurality of and flower cover 8 matches; Thereby flower cover 8 is plugged in the relation (as shown in Figure 9) that overcoat forms common rotation, and certainly, flower cover 8 also can become one structure through injection mo(u)lding with overcoat 5.The below of its external sleeve 5 also is provided with front shroud 6 and location coupling ring 7 (as shown in Figure 1), and the inwall of front shroud 6 offers cannelure 61, is used for and ring 7 cooperations that are located by connecting.Figure 13,14 shows the ring 7 that is located by connecting, and location coupling ring 7 is for to have opening, inverted dish, on drill body 1; It comprises outer side shirt edge 71; Cannelure 61 on outer side shirt edge 71 and outer cover 6 inwalls combines, and its inboard is connected in the corresponding annular groove on the drill body 1, thereby front shroud 6 is positioned.The lower support of overcoat 5 is at the upper end-face edge of front shroud 6, thereby overcoat 5 is limited relative drill body 1 and moves downward, but can rotate around drill body 1; Certainly; On drill body 1, be positioned at the lower end position of overcoat 5, also can extend outward the ridge that is used to support overcoat, like convexity from drill body 1 radial surface; Annular boss, or other bar comes moving down of constraining jacket 5.
Figure 10, Figure 11, Figure 12 show stopping cover 9; Its lower end has opening and is set in branch body nut 2; Stopping overlaps the inner surface and the external peripheral surface tight fit of dividing body nut 2 of 9 lower ends, and also is provided with a plurality of cannelures 22 (like Figure 15, shown in 16) on the external peripheral surface of branch body nut 2, on stopping cover 9, divides cannelure 22 positions of body nut 2 relatively; Its wall is recessed to cannelure 22; Formation is towards riveting locating hole 99, thereby stopping cover 9 combines with branch body nut 2, connects and drive to divide body nut 2.Those skilled in the art expect easily, divide between body nut 2 and the stopping cover 9 also can to combine through other mode, form stopping cover 9 and drive the relation of dividing body nut 2 rotations.The centre, top of preferred stopping cover 9 is provided with shaft sleeve part 914, and shaft sleeve part 914 is sleeved on the drill body, plays sealing jaw space on the one hand, works to support stopping cover 9 on the other hand in drill body.
The inboard, top of stopping cover 9 is provided with stopping pawl 913, the position is set need satisfies of stopping pawl: when jaw 1 retreats into the precalculated position, stopping pawl 913 stopped jaw 1 continue retreat.Preferred stopping pawl 913 roots are connecting portion, are connected in the top of stopping cover, and the other end is the retainer that extends from connecting portion, the top identical and that overlap away from stopping gradually of the rotation direction when its bearing of trend is retreated with jaw.Preferably to each jaw 1 corresponding stopping pawl 913 is set, promptly a plurality of stopping pawl 913 basic annular arrays are inboard in the top of stopping cover.
The outside, top of stopping cover has elasticity locking member 911 and load key 912; The plane, top and circumferential extension of elasticity locking member 911 basic vertical stopping covers are provided with; It comprises location division 916 and ratchet 915; Location division 916 is inside convexity, and ratchet 915 is from the edge extension of location division and the outside warpage of overlapping to stopping.Load key 912 is arranged on the circumferential both sides of elasticity locking member 911, the tip edge of stopping cover, extends radially outwardly basically.The control part and the location division of corresponding flower cover, three groups of elasticity locking members 911 be annular array also.Be appreciated that between two elasticity locking members, to include only a load key 912 that all there is the purpose of load key the circumferential both sides of realizing each elasticity locking member.
Fig. 1 to Fig. 3 shows the assembly relation of present embodiment manual locking drill chuck; Ratchet combination back cover 4 is arranged on the outside; Stopping cover 9 is arranged on the inboard; Spend cover 8 between cover and stopping overlap after the ratchet combination, the location division 811 of flower cover is in identical substantially height with location division 916, the ratchet 915 of stopping cover and the ratchet 41 that ratchet combination back is overlapped that stopping overlaps.And the location division that flower overlaps, control part and driving key are spent cover stopping cover rotation relatively between two load keys between two adjacent load keys 912 of stopping cover, promptly spend regional or the asynchronous rotary area of relatively rotating of cover; Be appreciated that; In position shown in Figure 2, forward (counterclockwise) rotating jacket, the relative stopping cover of flower cover forward rotation; When location division 811 contacts the load key 912 of stoppings cover; Relatively rotating of the relative stopping cover of flower cover stops, and the synchronous forward rotation, state as shown in Figure 3; The backward rotation overcoat, the relative stopping cover of flower cover backward rotation, when driving key 813 another load keys 912 of contact, relatively rotating of the relative stopping cover of flower cover stops, and synchronous backward rotates.Thereby Fig. 2 and shown in Figure 3 for spending the relative stopping of cover to overlap rotating two extreme positions.In addition, can set the thread rotary orientation of branch body nut, the direction of definition forward (counterclockwise) rotating jacket clamps jaw, and reverse (clockwise) rotating jacket unclamps jaw.Thereby corresponding jaw releasing orientation shown in Figure 2, corresponding jaw clamped condition shown in Figure 3.
In order to prevent the relative drill body rotation of course of work termination drill drift and to cause jaw back off tool handle, between overlapping after stopping cover and the ratchet combination, be provided with the single direction locking mechanism that constitutes by ratchet 915 and ratchet 41.In released position shown in Figure 2, the ratchet 915 on the stopping cover 9 is held up by the control part 812 of flower cover 8, not with ratchet 41 engagements, thus can backward rotation stopping cover.At locked position shown in Figure 3, the control part 812 disengagement ratchets 915 of flower cover 8, ratchet 915 meshes with ratchet 41 under the elastic restoring force effect, thereby cover (or drill body) backward rotation are prevented from after the 9 relative ratchet combinations of stopping cover, but can be by forward rotation.
At locked position shown in Figure 3, ratchet and ratchet mesh, and stopping overlaps the trend that relative drill body retreats and is prevented from, thereby jaw can not unclamp the clamping of pad.But at locked position shown in Figure 3; (inertia force that produces like the drill body high speed rotating or touched by workpiece etc.) causes overcoat 5 relative drill bodies to retreat (backward rotation) because various situation, if overcoat 5 retreats, its control part 812 that puts through flower can picking-up ratchets 915; Then the engagement of ratchet and ratchet is disconnected; Make stopping overlap the trend that relative drill body retreats and can not get stoping that the easy back off tool handle of jaw causes the accident.Thereby need the obstruction flower to overlap retreating of relative stopping cover.Because ratchet itself has elasticity, thereby the elastic force that the control part of flower cover need overcome ratchet just can make ratchet produce deformation, throw off the engagement with ratchet, thereby ratchet itself can hinder retreating of stopping cover.
In the present embodiment, prevent retreating of stopping cover through more reliable mode.Preferred stopping puts and is provided with location division 916; Flower puts the also corresponding location division 811 that is provided with of elasticity locking member 911, and contacting of the location division 916 of the location division 811 of flower cover and stopping cover caused obstruction to spending the relative stopping cover of cover to retreat like this; Prevent jaw back off tool handle, avoid dangerous generation.Certainly; When the jaw back off tool, the location division 916 that the stopping cover need be crossed in the location division 811 of flower cover, thus the ratchet that will stop the stopping cover to be retreated is thrown off from ratchet; As preferably; The location division 812 of flower cover and location division 916 Elastic Contact of stopping cover, promptly when the moment of rotating the flower cover is big, location division 916 transpositions that the location division 811 relative stoppings of flower cover overlap.Certainly, the location division that can be through changing flower cover and the shape of the location division of stopping cover change Elastic Contact power, also have other means to reach to change flower cover and stopping overlap between the size of Elastic Contact power.In the process of clamping tool, when jaw was not clamped instrument, the moment of resistance was less; The location division of flower cover pushes away the location division of stopping cover and rotates, and when jaw is clamped pad, the moment of resistance increases; The location division that the stopping cover is crossed in the location division of flower cover; After this, the load key contacts of the location division of flower cover and stopping cover continues to promote the stopping cover and rotates.Thereby though flower cover location division and stopping cover location division are set, clamping and release process are not had overslaugh.
Put corresponding location division and control part through ratchet and the location division that stopping puts is set with flower, can control the engagement opportunity of ratchet and ratchet, and reach the purpose that indication is locked.Be about to ratchet that stopping puts and location division and do as a wholely, the location division and the control part of flower cover are also done as a whole, spend when forward rotation and to overlap when making jaw clamping tool handle; When the location division of stopping cover is not crossed in the location division of flower cover; The ratchet of stopping cover is held up by the control part of flower cover always, and ratchet and ratchet are in not engagement, when the location division of stopping cover is crossed in the location division of flower cover; The control part of flower cover unclamps ratchet, and ratchet is under self elastic restoring force effect and ratchet engagement.Like this, when jaw was not clamped pad, it is less that the flower cover rotates the moment of resistance that receives, and the location division of flower cover promotes the location division of stopping cover and rotates, and the ratchet ratchet does not mesh.When jaw is clamped pad; The flower cover rotates the moment of resistance that receives and increases, the location division transposition of the relative stopping cover in the location division of flower cover, and ratchet and ratchet begin engagement; Continue afterburning rotating jacket, the relative ratchet spring of ratchet is also sent " click ", " click " sound to locking pad fully.Thereby function with indication locking.
Figure 17 to Figure 30 shows second embodiment of manual locking drill chuck of the present invention.
Among second embodiment, manual locking drill chuck comprises drill body 1, branch body nut 2, a plurality of stopping pawl 3, ratchet combination back cover 4, overcoat 5, front shroud 6, the ring 7 that is located by connecting, spends cover 8, stopping cover 9, bearing assembly 10, binding ring 19 and planetary wheeling mechanism.The concrete structure of below second embodiment being distinguished first embodiment is described in detail.
Shown in figure 17, planetary wheeling mechanism comprises ring gear 11, planetary wheel carrier 12, a plurality of planetary gear 13 and the fixedly ring gear 14 that is fixedly connected with drill body.Like Figure 18, shown in 19, a plurality of planetary gears 13 are fixedly meshing respectively between ring gear 14 and the ring gear 11 and with fixedly ring gear 14, ring gear 11, and a plurality of planetary gears 13 are fixed on the planet wheel spindle 121 of planetary wheel carrier 12.Ring gear 11 rotates, and can drive planetary gear 13 and then drive planetary wheel carrier 12 to rotate, and the rotation direction of the rotation direction of ring gear and planetary wheel carrier is identical.Like Figure 20, shown in 21, be evenly equipped with slotted eye or keyway 122 on the planetary wheel carrier.The structure of ring gear 11 such as Figure 29, shown in Figure 30; The inside circumference wall of ring gear 11 forms internal tooth 111; The outer circumference wall forms the keyway 112 and driver slot 113 of longitudinal extension, and what driver slot 113 included circumferential zones constituted the flower cover relatively rotates zone or phase place or space.Such keyway 112 can be uniformly distributed with many groups with driver slot 113 on the circumference wall, it acts on the back and will specify.
Like Figure 22, shown in 23, the lower end of flower cover 8 forms a plurality of connecting keys 824, and the colored cover of itself and overcoat 5 and first embodiment is identical with the fit system of overcoat, is not repeated in this description at this.The upper end of flower cover 8 forms location division 821 and control part 822.Location division 821 is for spending jacket wall to projecting inward formation.Be provided with between the edge 823 of location division 821 and control part 822 at interval.Two groups of location divisions 821 and control part 822 that are uniformly distributed with setting have been provided in the present embodiment.
Like Figure 24, shown in 25; Stopping cover 9 is provided with the shaft sleeve part 924 that is supported in drill body 1; The inboard, top of stopping cover 9 is provided with and is used to the stopping pawl 923 that prevents that jaw from excessively retreating, and this stopping cover is said with the setting and first embodiment of drill body 1, the mode that is connected of dividing body nut 2 and stopping pawl.Different is, stopping overlaps the outside, 9 tops and is provided with a plurality of keys 925 that are basically perpendicular to the top, circumferentially extend, and key 925 (comprising three such keys in the present embodiment) annular array is on the top of stopping cover and overlap 9 tops with stopping and be fixedly connected.The keyway 122 that a plurality of keys 925 insert on the planetary wheel carrier, thus stopping cover 9 and planetary wheel carrier 12 are integrally formed the relation of rotation.
Like Figure 26,27, shown in 28, binding ring 19 tops comprise flexible location division 194 and ratchet 193, and formation is protruded laterally from the circle wall at place in location division 194, and ratchet 193 extends setting from the circumferential outside at place.Key 192 is formed at the bottom of binding ring 19, has provided two keys 192 that are uniformly distributed with setting in the present embodiment.
Figure 29 to Figure 30 shows ring gear 11; Its outer circumferential walls is provided with keyway 112 and driver slot 113; The key 192 of binding ring can insert the keyway 112 on the ring gear 11 circumference walls; Thereby binding ring 19 is in the same place through the key 192 and the socket connection of keyway 112 with ring gear, is integrally formed the relation of rotation.
Figure 17 to Figure 19 shows the matching relationship between flower cover 8 and the stopping cover 9.Be provided with planetary wheeling mechanism between binding ring and the stopping cover; As previously mentioned; Binding ring 19 is fixedly coupled with ring gear 11 through the grafting of key 192 and keyway 112; Planetary wheel carrier 12 is fixedly coupled with stopping cover 9 through the grafting of key 925 and keyway 122, and through such combination, the ring gear that moves through fixed connection that the motion of ring gear is delivered to stopping cover and binding ring also is delivered to the stopping cover.In addition, the control part of flower cover is arranged in the driver slot of ring gear and extends out to concordant with the position at ratchet place basically.Position shown in figure 18, the edge 823 of the control part 822 of flower cover 8 contacts with the corresponding cell wall of driver slot 113, at this moment if forward (counterclockwise) rotating jacket 5 then spend cover 8 to drive ring gear 11 forward rotation, and then the driving stopping overlaps 9 forward rotation.Position shown in figure 19, another edge of control part (relative with edge 823) of flower cover 8 contact with the corresponding cell wall of driver slot 113, and this moment, then flower overlapped 8 driving ring gears, 11 backward rotation, and then the driving stopping overlaps 9 backward rotation if reverse (clockwise) rotated flower cover 8.But flower cover 8 can rotate by relative ring gear 11 (or binding ring 19) in driver slot, thereby the driver slot 113 of ring gear 11 circumferentially defines the zone that relatively rotates of flower cover.
In relatively rotating the zone, flower cover ring gear (or binding ring) relatively rotates.Said as first embodiment; With the direction setting of forward (counterclockwise) rotating jacket is the direction of jaw clamping tool handle, and on the contrary, oppositely the direction setting of (clockwise) rotating jacket is the direction of jaw back off tool handle; Corresponding released position then shown in Figure 180, corresponding locked position shown in Figure 19.In released position shown in Figure 180, ratchet 193 is held up by the control part 822 of flower cover, thereby can the backward rotation ring gear; And then drive stopping and overlap 9 backward rotation, finally reach the purpose of unclamping jaw, at locked position shown in Figure 19; The control part 822 of flower cover is thrown off ratchet 193; Ratchet 193 recovers down ratchet 41 engagements with ratchet combination back cover 4 in self elastic force, forward rotation ring gear, then final jaw clamping tool handle.On binding ring, also be provided with and hinder the location division 194 that the flower cover is retreated, its location division 822 with the flower cover cooperates.The location division Elastic Contact of the location division of binding ring and flower cover, according to the size of rotating flower cover moment, the selectable location division that turns over the stopping cover, the location division of flower cover.Same location division 194 and the position relation of the location division 822 of flower cover 8 through setting binding ring 19 can be controlled engagement opportunity of ratchet and ratchet, reaches the purpose that indication is locked.
Figure 31 to Figure 39 shows the 3rd embodiment of manual locking drill chuck of the present invention.
Among the 3rd embodiment, manual locking drill chuck comprises drill body 1, divides body nut 2, a plurality of jaw 3, overcoat 5, outer cover 6, the ring 7 that is located by connecting, flower cover 8, stopping cover 9, bearing assembly 10, compound back cover 46 and ratchet 48.The concrete structure of below the 3rd embodiment being distinguished first embodiment is described in detail.
Figure 31 to Figure 33 shows the relative position relation and the matching relationship of each parts.Stopping cover 9 is positioned at the inboard of flower cover 8, and ratchet 48 is fixing is sleeved on the drill body 1, outer surface has ratchet.
Like Figure 34, shown in Figure 35, connecting key 834 is formed at flower cover 8 bottoms, is used for pegging graft with the connection slot 52 of overcoat 5, and location division 831 and control part 832 are formed at its top.The circumferential both sides that are positioned at location division 831 and control part 832 are respectively and drive key 833 and drive key 834.As required, can circumferentially be uniformly distributed with many groups location division 831 and control part 832, be provided with three groups in the present embodiment.Preferred orientation portion 831 is for radially inwardly concaving formation, and control part 832 is basically perpendicular to the plane, top that flower overlaps from lateral edges extension and location division 831, control part 832 and the driving key 833 of location division.The circumferential position that drives key 833 and drive between the key 834 defines the zone that relatively rotates of spending cover.
Like Figure 36, shown in Figure 37, stopping overlaps inboard, 9 top and has the stopping pawl 933 that prevents that jaw from excessively retreating, and the stopping pawl is provided with identical with first embodiment.Its outside, top is provided with location division 935, curved ratchet 932 and the load portion 934 that extends substantially vertically.Preferred orientation portion 935 is integrally formed by elasticity locking member 931 with curved ratchet 932, and location division 935 is outside convex, and curved ratchet also forms the location division 936 of outside convex.The setting of flower cover relatively, the parts that stopping puts also circumferentially are laid with three groups.Set the direction of the corresponding jaw clamping tool of the direction handle of forward (counterclockwise) rotating jacket, the direction of the corresponding jaw back off tool of the direction of reverse (clockwise) rotating jacket handle.The position of corresponding jaw clamping tool handle then shown in Figure 32, the position of corresponding jaw back off tool handle shown in Figure 33.
The forward rotation overcoat, drill chuck can turn to locked position shown in Figure 32 from released position shown in Figure 33.When not running into the bigger moment of resistance, the location division of flower cover promotes the location division of stopping cover and rotates together, the location division that curved ratchet is crossed in the location division 831 of (move down clamp pad like jaw) flower cover when running into the bigger moment of resistance; Ratchet compelled inwardly with near ratchet; Driving key 834 up to the flower cover promotes the load key 934 that stopping overlaps, and relatively rotates to stop, and spends cover to drive the synchronous rotation of stopping cover; Curved ratchet is beated on ratchet, until jaw clamping tool handle.In like manner, the backward rotation overcoat, drill chuck can turn to released position shown in Figure 33 from clamped position shown in Figure 32; The location division 935 of stopping cover is crossed in the location division 831 that flower overlaps, and the driving key 833 that overlaps up to flower promotes the location division 935 that stopping overlaps, and relatively rotates to stop; The location division 936 of curved ratchet curved ratchet under self elastic restoring force effect is contained in the location division 831 of curved ratchet; Thereby break off engagement, the flower cover drives stopping cover backward rotation, lets jaw back off tool handle.
Be appreciated that; At locked position shown in Figure 33, the location division 935 of stopping cover is arranged in the location division 831 of flower cover, and location division 935 is an Elastic Contact with location division 831; When thereby the flower cover is retreated; Need overcome the Elastic Contact power between location division 935 and the location division 831, can set Elastic Contact power in several ways like this, reach the loosening purpose of indirect obstruction overcoat.
Figure 38, shown in Figure 39 for overlapping 46 after the combination of present embodiment, it comprise outer 461 with lining 462.Lining 462 is provided with hole 465 and groove 466, and outer 461 can be nylon, plastics etc.Through injection, cladding material filler opening 465 and groove 466, thus be integrally formed.
Figure 40 to Figure 44 also shows manual locking device the 3rd embodiment of the present invention; Wherein the syndeton of flower cover and overcoat syndeton and front shroud and overcoat is with aforementioned different; Difference is: the outer wall of flower cover and the inwall tight fit (like interference fit) of overcoat; And the outer wall of flower cover is provided with vertical microgroove 841 (like Figure 43, shown in 44), thereby can transmit bigger moment each other.The front end of overcoat is provided with jack 58; And the upper end of front shroud 6 is provided with the key 67 (like Figure 41, shown in 42) that matches; Thereby overcoat 5 combines with the grafting of front shroud 6 through jack 58 and key 67, form the relation of rotation synchronously, and front shroud 6 is still through ring 7 axial location that are located by connecting.
From the above; Manual locking drill chuck of the present invention; Be provided with stopping cover and flower cover; Inboard, top at stopping cover is provided with the elasticity stopping pawl that prevents that jaw from excessively retreating, and prevents that stopping from overlapping counter-rotational elastic pawl on the device that is in transmission connection in the outside, top of stopping cover or with the stopping cover, and flower puts and also is provided with the control part that when the backward rotation overcoat, breaks off ratchet and ratchet engagement.Thereby reach the purpose of backward hold.Also can be provided with the elasticity location division that hinders the rotation of the relative stopping cover of flower cover owing to putting, thereby reach the purpose that overcoat also is locked at stopping.In addition, put the location division that location division, ratchet and stopping put, the relation of control part, also can make the present invention have the effect of indication locking through stopping is set.
The above is the specific embodiment of the present invention tightly, is not limited to concrete structure, and to those skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Description of reference numerals
2 fens body nut 22 cannelures of 1 drill body
3 jaws, 4 ratchets combination back cover 41 ratchets
42 connecting portions, 421 connecting keys, 46 compound back covers
461 outer 462 linings, 465 holes
466 grooves, 48 ratchets, 5 overcoats
52 link slots, 58 jacks, 6 front shrouds
61 cannelures, 67 keys 7 ring that is located by connecting
71 outer side shirt edge 8 flower covers, 811 location divisions
812 control parts 813 drive key 814 connecting keys
822 control parts, 823 edges, 821 location divisions
824 connecting keys, 831 location divisions, 832 control parts
833 drive key 834 drives key 841 vertical microgrooves
9 stoppings overlap 911 elasticity locking members, 912 load keys
913 stopping pawls, 914 shaft sleeve part, 915 ratchets
916 location divisions, 923 stopping pawls, 924 shaft sleeve part
925 keys, 931 elasticity locking members, 932 curved ratchets
933 stopping pawls, 934 load portions, 935 location divisions
936 location divisions, 10 bearing assemblies, 11 ring gears
111 internal tooths, 112 keyways, 113 driver slots
12 planetary wheel carriers, 121 planet wheel spindles, 13 planetary gears
14 fixing ring gear 19 binding rings 193 ratchets
194 positioning pits, 192 keys
Claims (28)
1. manual locking chuck comprises:
Drill body, its rear end are connected to the driving shaft of power source, and have the inclined hole of the circumferential five equilibrium in a plurality of edges;
A plurality of jaws be installed in respectively in a plurality of corresponding inclined hole in the said drill body, and its outer surface have screw thread;
Nut is sleeved on the said drill body, and its inner surface has screw thread, thus with said jaw on engage threads;
Overcoat is sleeved on the said drill body, it is characterized in that: also comprise,
The flower cover is fixed on the coat, and it is circumferentially with control part;
The stopping cover is positioned at the inboard and connection of flower cover and drives said nut, and its inboard, top is provided with the stopping pawl that prevents that jaw from excessively retreating, and it is circumferentially with first, second load key and the elastic pawl between first, second load key;
Ratchet combination back cover is set on the said drill body, and its madial wall has and is used for the ratchet that is meshed with said elastic pawl;
Wherein, between first, second load key of stopping cover, the control part of said flower cover drives the engagement of breaking off said ratchet and ratchet when stopping overlaps in said overcoat backward rotation to the control part that said flower overlaps rotationally.
2. manual locking chuck according to claim 1 is characterized in that:
Control part one side of said flower cover is provided with the location division;
The stopping cover also is provided with between said first, second load key and is used for and location division that said flower cover cooperates;
Wherein, the position point of said flower cover is between first, second load key of stopping cover, but the location division transposition ground cooperation of location division that said stopping overlaps and flower cover hinders overcoat and retreats.
3. manual locking drill chuck according to claim 2 is characterized in that: the control part of said flower cover does not hold up elastic pawl when turning over the location division of stopping cover in the location division of flower cover always, and elastic pawl and ratchet break off; The control part of said flower cover unclamps ratchet when turning over the location division of stopping cover in the location division of flower cover, and the deformation of said elastic pawl recovers and the engagement ratchet.
4. manual locking drill chuck according to claim 3 is characterized in that: said flower puts the driving key that control part one side is interval with reverse drive stopping cover.
5. according to each described manual locking drill chuck in the claim 1 to 4, it is characterized in that: said stopping cover is evenly equipped with three groups of ratchets, and said flower puts corresponding each ratchet and is provided with control part.
6. manual locking drill chuck according to claim 5 is characterized in that: the ratchet sleeve that said ratchet combination back cover has a ratchet by inner circumferential surface is loaded on an independent back cover and constitutes.
7. manual locking chuck comprises:
Drill body, its rear end are connected to the driving shaft of power source, and have the inclined hole of the circumferential five equilibrium in a plurality of edges;
A plurality of jaws be installed in respectively in a plurality of corresponding inclined hole in the said drill body, and its outer surface have screw thread;
Nut is sleeved on the said drill body, and its inner surface has screw thread, thus with said jaw on engage threads;
Overcoat is sleeved on the said drill body, it is characterized in that: also comprise,
The flower cover is fixed in overcoat, and it is circumferentially with control part;
The stopping cover connects and drives said nut, and its inboard, top is provided with the stopping pawl that prevents that said jaw from excessively retreating;
Binding ring has ratchet on it;
Planetary wheeling mechanism; Be arranged between binding ring and the stopping cover and and be delivered to said stopping cover the motion of said binding ring; It comprises ring gear, and the fixedly ring gear that with drill body be fixedly connected inboard at said ring gear, at said ring gear and fixing a plurality of planetary gears and the planetary wheel carrier between the ring gear, said ring gear has along the driver slot of outer surface extension;
Ratchet combination back cover is sleeved on the described drill body, has the ratchet with said ratchet engagement on its interior sidewall surface;
The control part of wherein said flower cover is rotating to be arranged in said driver slot and its upper end is stretched out, and the engagement of when said overcoat backward rotation is unclamped jaw, breaking off said ratchet and ratchet of the upper end of said control part.
8. manual locking chuck according to claim 7 is characterized in that:
The side that said flower puts control part also is provided with the location division;
Also be provided with the location division that cooperates with said flower cover location division on the said binding ring;
The location division Elastic Contact of the location division of wherein said binding ring and flower cover hinders the rotation of spending the relative stopping cover of cover; The control part of said flower cover breaks off said ratchet and ratchet when said overcoat backward rotation is unclamped jaw engagement.
9. manual locking drill chuck according to claim 8 is characterized in that: said binding ring is evenly equipped with two groups of ratchets, and said flower puts corresponding each ratchet and is provided with control part.
10. according to each described manual locking drill chuck in the claim 7 to 9, its spy
Levy and be: said planetary wheel carrier is provided with a plurality of keyways, and said stopping puts and is provided with the key that a plurality of keyways with said planetary wheel carrier plug; The position of the different driver slot of outer peripheral face of said ring gear also is provided with a plurality of keyways, and said binding ring is provided with the key of a plurality of keyways that are used to insert said ring gear.
11. manual locking drill chuck according to claim 10 is characterized in that: said ratchet combination back cover is structure as a whole.
12. a manual locking drill chuck comprises:
Drill body, its rear end are connected to the driving shaft of power source, and have the inclined hole of the circumferential five equilibrium in a plurality of edges;
A plurality of jaws be installed in respectively in a plurality of corresponding inclined hole in the said drill body, and its outer surface have screw thread;
Nut is sleeved on the said drill body, and its inner surface has screw thread, thus with said jaw on engage threads;
Overcoat is sleeved on the said drill body;
It is characterized in that:
Flower cover is fixed in overcoat, its be circumferentially with first, second drive key and
Drive the control part between the key at first, second;
The stopping cover; Be positioned at the inboard and connection of flower cover and drive said nut; Its inboard, top is provided with the stopping pawl that prevents that said jaw from excessively retreating, and the outside, top has load portion and elastic pawl, and said elastic pawl and load portion drive between the key at said first, second rotationally;
Ratchet is fixed on the drill body, and its periphery has ratchet, and said ratchet curves inwardly and ratchet engagement;
The engagement of breaking off elastic pawl and ratchet when the control part its external sleeve backward rotation of wherein said flower cover drives the stopping cover.
13. manual locking drill chuck according to claim 12 is characterized in that: a side of the control part of said flower cover is provided with the location division; Said stopping puts and is provided with the location division that cooperates with said flower cover location division; The rotation of the location division Elastic Contact of the location division of wherein said stopping cover and flower cover and the relative stopping cover of obstruction flower cover.
14. according to the said manual locking drill chuck of claim 13; It is characterized in that: also be provided with the location division that cooperates with said flower cover location division on the said ratchet; The position point of wherein said ratchet is when the location division of stopping cover, and said ratchet deformation recovers and breaks off with the engagement of ratchet.
15. according to each described manual locking drill chuck in the claim 12 to 14, it is characterized in that: said stopping puts and is evenly equipped with three groups of ratchets, and said flower puts corresponding each ratchet and is provided with control part.
16. manual locking drill chuck according to claim 15 is characterized in that: also comprise be fixedly mounted on the drill body, by nylon outer with the integrated compound back of metal lining cover.
17. a manual locking chuck comprises:
Drill body, its rear end are connected to the driving shaft of power source, and have the inclined hole of the circumferential five equilibrium in a plurality of edges;
A plurality of jaws be installed in respectively in a plurality of corresponding inclined hole in the said drill body, and its outer surface have screw thread;
Nut is sleeved on the said drill body, and its inner surface has screw thread, thus with said jaw on engage threads;
Overcoat, back cover are set on the said drill body, it is characterized in that: also comprise,
The stopping cover connects and drives said nut;
Flower overlaps, and is fixedly connected with overcoat, drives location division and control part that its apical margin of the forward and reverse rotation of said binding ring forms circumferential extension;
Binding ring is fixedly connected on the stopping cover, comprises elastic pawl and elasticity location division on it;
Ratchet rotates with said drill body synchronously, has the ratchet with said ratchet engagement on it;
Wherein, the control part of said flower cover breaks off the engagement of ratchet and ratchet when said overcoat backward rotation drives binding ring, but the location division transposition of the location division of said flower cover and said binding ring cooperate, hinder the rotation of the relative binding ring of said overcoat.
18. manual locking drill chuck according to claim 17 is characterized in that: said binding ring and stopping cover are integrally formed.
19. manual locking drill chuck according to claim 18; It is characterized in that: what said ratchet was fixing is installed in the cover of back; Its inner surface has ratchet; Said elastic pawl to the ratchet that is positioned at the outside extend and with said ratchet engagement, the circumferential both sides of said elastic pawl and elasticity control part are respectively equipped with the load key that bears the driving of flower cover.
20. manual locking drill chuck according to claim 18; It is characterized in that: what said ratchet was fixing is installed on the drill body; Its outer surface has ratchet; Said elastic pawl to be positioned at that inboard ratchet extends and with said ratchet engagement, the control part of said flower cover and the circumferential both sides of location division are respectively equipped with the driving key of driving binding ring.
21. manual locking drill chuck according to claim 17; It is characterized in that: also comprise planetary wheeling mechanism between said binding ring and the stopping cover; Said planetary wheeling mechanism comprises ring gear, and the fixedly ring gear that with drill body be fixedly connected inboard at said internal gear, at said ring gear and fixing a plurality of planetary gears and the planetary wheel carrier between the ring gear, said ring gear has along the driver slot of outer surface extension; Said binding ring is fixedly connected with said ring gear; Said planetary wheel carrier is fixedly connected with said stopping cover; The control part of said flower cover is rotating to be arranged in said driver slot and to extend upward to said elastic pawl place; Said ratchet aggregate erection after put, its inner surface has ratchet, said elastic pawl to the ratchet that is positioned at the outside extend and with said ratchet engagement.
22. according to claim 17 or 21 described manual locking drill chucks, it is characterized in that: the control part of said flower cover unclamps elastic pawl, said elastic pawl and ratchet engagement when turning over the location division of binding ring in the location division of flower cover.
23. manual locking drill chuck according to claim 22 is characterized in that: be evenly equipped with a plurality of elastic pawls on the said binding ring, said flower puts corresponding each elastic pawl and is provided with control part.
24. manual locking drill chuck according to claim 22 is characterized in that: also comprise front shroud, said front shroud encircles the lower end that is fixed on said drill body through being located by connecting, and said overcoat is supported on the said front shroud.
25. the manual locking drill chuck according to shown in the claim 24 is characterized in that: the front end of said overcoat is provided with jack, and the upper end of said front shroud is provided with the key that matches, and overcoat is supported on the said front shroud through the grafting of jack and key.
26. manual locking drill chuck according to claim 25 is characterized in that: the outer surface of tight fit and flower cover has microgroove between the outer surface of said flower cover and the inwall of overcoat.
27. manual locking drill chuck according to claim 23 is characterized in that: said nut is for dividing body nut, and said stopping cover is sleeved on the outside of branch body nut tightly and dashes riveted joint.
28. manual locking drill chuck according to claim 25 is characterized in that: the inboard, top of said stopping cover also has the stopping pawl that prevents that jaw from excessively retreating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100654383A CN101041187B (en) | 2006-03-24 | 2006-03-24 | Manual locking drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100654383A CN101041187B (en) | 2006-03-24 | 2006-03-24 | Manual locking drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101041187A CN101041187A (en) | 2007-09-26 |
| CN101041187B true CN101041187B (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100654383A Active CN101041187B (en) | 2006-03-24 | 2006-03-24 | Manual locking drill chuck |
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| Country | Link |
|---|---|
| CN (1) | CN101041187B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2941395B1 (en) * | 2009-01-26 | 2014-10-10 | Amyot Ets Sa | TOOL HOLDER CHUCK FOR THE EQUIPMENT OF A ROTATING MACHINE. |
| CN105339118B (en) * | 2013-05-30 | 2017-02-15 | 威海达旺五金制品有限责任公司 | Drill chuck |
| JP6787571B2 (en) * | 2016-12-06 | 2020-11-18 | ユキワ精工株式会社 | Chuck device |
| CN208322220U (en) | 2018-03-30 | 2019-01-04 | 山东威达机械股份有限公司 | A kind of cooling collet |
| CN113352227A (en) * | 2021-05-20 | 2021-09-07 | 山西富兰地工具有限公司 | Drill bit grinding device that security performance is high |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602857Y (en) * | 2003-03-25 | 2004-02-11 | 山东威达机械股份有限公司 | Self-locking drill chuck |
| CN2723083Y (en) * | 2004-09-15 | 2005-09-07 | 山东威达机械股份有限公司 | Locking type hand-operated drill chuck |
| CN1743108A (en) * | 2005-10-12 | 2006-03-08 | 山东威达机械股份有限公司 | Chuck with reverse stop |
-
2006
- 2006-03-24 CN CN2006100654383A patent/CN101041187B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602857Y (en) * | 2003-03-25 | 2004-02-11 | 山东威达机械股份有限公司 | Self-locking drill chuck |
| CN2723083Y (en) * | 2004-09-15 | 2005-09-07 | 山东威达机械股份有限公司 | Locking type hand-operated drill chuck |
| CN1743108A (en) * | 2005-10-12 | 2006-03-08 | 山东威达机械股份有限公司 | Chuck with reverse stop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101041187A (en) | 2007-09-26 |
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Effective date of registration: 20190329 Address after: 264200 Zhonghan Road, Weishan Town, Weihai Lingang Economic and Technological Development Zone, Shandong Province Patentee after: Shandong Weida Machinery Co., Ltd.. Address before: 264400 No. 2 Zhonghan Road, Weishan Town, Wendeng City, Shandong Province Patentee before: Weida Machinery Co., Ltd., Shandong |
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