CN102773841B - The dual-purpose drill chuck of fast changeable and its electric hammer drill of use - Google Patents
The dual-purpose drill chuck of fast changeable and its electric hammer drill of use Download PDFInfo
- Publication number
- CN102773841B CN102773841B CN201210170625.3A CN201210170625A CN102773841B CN 102773841 B CN102773841 B CN 102773841B CN 201210170625 A CN201210170625 A CN 201210170625A CN 102773841 B CN102773841 B CN 102773841B
- Authority
- CN
- China
- Prior art keywords
- drill
- drill chuck
- electric hammer
- dual
- chuck
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/1238—Jaws movement actuated by a nut with conical screw-thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
- B25D17/084—Rotating chucks or sockets
- B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/003—Details relating to chucks with radially movable locking elements
- B25D2217/0038—Locking members of special shape
- B25D2217/0049—Roll-shaped locking members
Abstract
The invention provides a kind of dual-purpose drill chuck and its electric hammer drill of use.The inside of dual-purpose drill chuck is hollow; Front portion is manually fastened or Wrench-type drill jig; Rear portion extends, and inwall has the key coordinated with the open slot of electric hammer drill, has radial direction to run through the straight pin of drill chuck wall; Rear end is the connecting portion realizing with the turning set of electric hammer drill being socketed, and the appropriate section that connecting portion relatively rotates cover can be carrier or insertion section, and connecting portion has fixed connection apparatus; Described fixed connection apparatus is steel ball, the belled position of drill chuck and turning set, outer wall has two steel ball holes, and the position that the inner layer tube wall of correspondence is corresponding has the toroidal cavity of stationary balls, and described steel ball runs through two steel ball holes and enters in toroidal cavity.Use the electric hammer drill of above-mentioned dual-purpose drill chuck, easy to operate, comfortable, can Fast Installation and dismounting drill chuck, drilling precision is higher, working (machining) efficiency is higher Novel electric hammer drill.
Description
Technical field
The present invention relates to electric hammer drill technical field, particularly relate to a kind of dual-purpose drill chuck of fast changeable and use its electric hammer drill.
Background technology
Now normally used electric hammer drill, with reference to Fig. 1, Figure 1A and Figure 1B, drill bit 21 clamping of electric hammer function is realized concrete drill hole operation on electric hammer, during as needed drill steel material or timber, with reference to Fig. 2, Fig. 2 A and Fig. 2 B, refill after needing to be connected with drill chuck 101 with connecting rod 102 in addition and fit on electric hammer, then spiral bit 100 or other drill jigs are held on drill chuck 101 realize bore operation, namely perform electric drill function; Need when user changes electric hammer function and electric drill function to install and remove drill chuck 101, the situation of frequent mounting or dismounting drill chuck is there will be in actual use, cause operation very inconvenient, and due to when electric drill function, have employed connecting rod structure, the connection precision of the head section of connecting rod and drill bit and electric hammer is poor, easily cause beating greatly, and and then cause drilling precision low, user's feel is uncomfortable in addition, and working (machining) efficiency is lower.Walk carry out percussive drilling work because high pulling torque when electric hammer drill 21 and drill chuck connecting rod 102 transmit work with turning set with the connection of key form, steel ball carry out axis, the key in turning set is easily caused to wear and tear, thus electric hammer drill 21 and drill chuck connecting rod 102 cannot be connected, cause working, need carry out very loaded down with trivial details complete machine during repairing and disassemble replacing turning set, this operation unprofessional user can be difficult to carry out repair and replacement.For overcoming above-mentioned defect, publication number is that the Chinese invention patent application of CN1149850A proposes a kind of tool holder being applicable to electric hammer and electric drill two kinds of function drill bits and the boring bar tool using this tool holder.Rotating drive shaft is socketed and uses radial peg fastening means to press from both sides, the instrument (electric hammer drill bit) of a locking mechanism be obliquely installed and trough of belt forms self-locking.But there is many defects in the technical scheme of this patent application: radial peg is gone lock barrel to surround, handling inconvenience; And the setting of this radial peg penetrates belled position, inconsistent with hammer body, resistance can be caused and the hammer body that weares and teares to the motion of hammer body; Locking mechanism is complicated, the difficulty adding processing and use.Therefore the program is not on the actual application.
Summary of the invention
In order to overcome electric hammer that oneself has when realizing electric drill function inconvenient operation, drilling precision is lower, working (machining) efficiency is lower, change wearing and tearing turning set more loaded down with trivial details, keep in repair troublesome deficiency, overcome the deficiency of CN1149850A Chinese invention patent application technology simultaneously, the invention provides a kind of easy to operate, drilling precision is higher, working (machining) efficiency is higher, and without the need to disassembling the electric hammer drill that complete machine is changed turning set, a kind of dual-purpose drill chuck easy to maintenance and used it after key wearing and tearing.
The technical solution adopted for the present invention to solve the technical problems is:
a kind of electric hammer drill: comprise fuselage, in described fuselage, drive motors, gear drive, turning set and beater mechanism are installed, drive motors is connected with the input of gear drive, the output of gear drive is connected with turning set, turning set front end fixed connection apparatus connects dual-purpose drill chuck provided by the present invention, and described beater mechanism is positioned at the rear of electric hammer drill.The dual-purpose drill chuck of the one that the present invention also provides: inner in hollow form, is manually fastened or spanner-type drill chuck structure, is provided with the holder of clamping electric drill drill bit through outer wall.With common drill chuck unlike, drill chuck rear portion of the present invention extends, and inwall rear portion is provided with the key of the transmission electric hammer drill high pulling torque coordinated with the open slot of electric hammer drill, and electric hammer drill can be arranged in described drill chuck.Described dual-purpose drill jig is arranged on described turning set by fixed connection apparatus.According to the different designs of the socket mode with turning set, can be the connecting portion that turning set inserts drill chuck, namely the connecting portion of drill chuck be carrier; Also may be the connecting portion insertion turning set of drill chuck conversely, namely the connecting portion of drill chuck be insertion section.The structure of its socket can adopt bond structure, helicitic texture, cone structure or flat square structure, and the moment of torsion of turning set can be passed to dual-purpose drill chuck by these socket join structures.
Further, the fixed connection apparatus of described dual-purpose drill chuck and turning set is steel ball connected mode, the belled position of drill chuck and described turning set, outer wall has two steel ball holes, the position that the inner layer tube wall of correspondence is corresponding has the toroidal cavity of stationary balls, and described steel ball is arranged in two steel ball holes and toroidal cavity successively.The position of electric hammer drill installed by described dual-purpose drill chuck, has radial direction to run through the straight pin of drill chuck wall, and this straight pin is used for axially locking electric hammer drill, and namely the inner of straight pin enters the closed slot of electric hammer drill handle, makes it can not slippage from drill jig.
Further again, dual-purpose drill chuck of the present invention also has drill bit fixed cover and the drill chuck fixed cover of combination: drill bit fixed cover is positioned at the rear portion of dual-purpose drill chuck, be sleeved on dual-purpose drill chuck, install drill bit retainer plate in drill bit fixed cover, drill bit retainer plate coordinates with straight pin; The rear portion that drill chuck fixed cover is positioned at drill bit fixed cover is sleeved on drill chuck simultaneously, installing drill chuck retainer plate in drill chuck fixed cover, one end of back-moving spring withstands on described drill chuck retainer plate, the other end of back-moving spring withstands on described drill bit retainer plate, drill bit retainer plate radial direction blocks the straight pin of axial location electric hammer drill, and drill chuck retainer plate radial direction blocks the steel ball of axial location drill chuck and turning set.
Drill chuck fixed cover moves backward along drill chuck axial direction, and drill chuck retainer plate has just got out of the way the position blocking steel ball, and the toroidal cavity of turning set stationary balls just thrown off by steel ball now, and the turning set of drill chuck and fuselage just can be dismantled easily and install.
Preferably, dual-purpose drill chuck of the present invention is clamping specification is manually fastened drill chuck between bit diameter 6-20mm and spanner-type drill chuck.
The socket join structure of the connecting portion of described dual-purpose drill chuck and turning set adopts key fit system, comprise spline and keyway, described turning set is provided with spline (or keyway), drill chuck is provided with the keyway (or spline) coordinated with described spline (or keyway), and described spline is nested in described keyway.
Or: the socket join structure of the connecting portion of described dual-purpose drill chuck and turning set adopts thread fiting mode, comprise internal thread and external screw thread, described turning set is provided with external screw thread (or internal thread), drill chuck is provided with the internal thread (or external screw thread) coordinated with described external screw thread (or internal thread), and described external screw thread is arranged in described internal thread.
Again or: the socket join structure of the connecting portion of described dual-purpose drill chuck and turning set adopts cone match mode, comprise inner conical surface and male cone (strobilus masculinus), described turning set is provided with male cone (strobilus masculinus) (or inner conical surface), described drill chuck is provided with the inner conical surface (or male cone (strobilus masculinus)) coordinated with described male cone (strobilus masculinus) (or inner conical surface), and described male cone (strobilus masculinus) is arranged in described inner conical surface.
Or be: the socket join structure of the connecting portion of described dual-purpose drill chuck and turning set adopts flat side's fit system, comprise interior flat side and outer flat side, described turning set is provided with outer flat side (or interior flat side), described drill chuck is provided with the interior flat side (or outer flat side) coordinated with described outer flat side (or interior flat side), and described outer flat side is arranged in described interior flat side; Described flat side's connected mode can be that one side shape flat horizontal surface is to Polyhedral flat horizontal surface.
Outer dust prevention system is installed in described dual-purpose drill chuck outside, and described outer dust prevention system comprises potted component and gland, and described gland is assemblied in drill chuck front portion, and described potted component is sleeved on the outer wall of electric hammer drill.
Beneficial effect of the present invention is mainly manifested in: fuselage sections and the connection of dual-purpose drill chuck by various different fixed form of electric hammer drill, achieves an electric hammer drill and can complete and need not dismantle drill chuck and just various different drill bit that directly clamping comprises electric hammer drill can realize various easy to operate, bore operation and improve operating efficiency efficiently; And utilizing fixed connection apparatus, various dissimilar drill chuck can be installed to fast on electric hammer drill or from electric hammer drill and unload, easy to operate, quick.
Accompanying drawing explanation
Fig. 1 is the stereogram of existing electric hammer drill clamping electric hammer drill.
Figure 1A is the structure chart of existing electric hammer drill clamping electric hammer drill.
Figure 1B is the sectional view of existing electric hammer drill clamping electric hammer drill.
Fig. 2 is the stereogram of the common spiral bit of existing electric hammer drill clamping.
Fig. 2 A is the sectional view of the common spiral bit of existing electric hammer drill clamping.
Fig. 2 B is the structure chart of the common spiral bit of existing electric hammer drill clamping.
Fig. 3 is the stereogram of the electric hammer drill of a kind of first-selected embodiment of the present invention, and illustrated therein is head section is spanner-type drill chuck.
Fig. 4 is the stereogram of electric hammer drill of the present invention, and illustrated therein is head section is manually fastened drill chuck.
Fig. 5 is the top view of electric hammer drill in Fig. 3.
Fig. 6 is the top view of electric hammer drill in Fig. 4.
Fig. 7 and Fig. 7-1 is the structure chart of electric hammer drill in Fig. 3, and illustrated therein is head section is spanner-type drill chuck.
Fig. 7 A and Fig. 7-1A is that in Fig. 5, electric hammer drill is along the sectional view in A-A direction, and illustrated therein is head section is spanner-type drill chuck.
Fig. 7 B and Fig. 7-1B is the part figure of the structure chart of electric hammer drill in Fig. 3, illustrated therein is the connection that spanner-type drill chuck and turning set are key form.
Fig. 8 is the structure chart of electric hammer drill in Fig. 4, and illustrated therein is head section is manually fastened drill chuck.
Fig. 8 A is that in Fig. 6, electric hammer drill is along the sectional view in A-A direction, and illustrated therein is head section is manually fastened drill chuck.
Fig. 8 B is the part figure of the structure chart of electric hammer drill in Fig. 6, illustrated therein is the connection that manually fastened drill chuck and turning set fixture are key form.
Fig. 9 is the structure chart of the electric hammer drill of second embodiment of the invention, illustrated therein is fuselage sections with head section (drill chuck) fixture for being threaded.
Fig. 9 A is the sectional view of the electric hammer drill of second embodiment of the invention.
Fig. 9 B and Fig. 9 B-1 is the part figure of the structure chart of electric hammer drill in Fig. 9, illustrated therein is spanner-type drill chuck and turning set fixture is the connection of thread forms.
Figure 10 is the structure chart of the electric hammer drill of third embodiment of the invention, and illustrated therein is fuselage sections with head section (drill chuck) fixture is that the conical surface is connected.
Figure 10 A is the sectional view of the electric hammer drill of third embodiment of the invention.
Figure 10 B and Figure 10 B-1 is the part figure of the structure chart of electric hammer drill in Figure 10, and illustrated therein is spanner-type drill chuck with turning set fixture is that the conical surface is connected.
Figure 11 and Figure 11-1 is the structure chart of the electric hammer drill of four embodiment of the invention, and illustrated therein is fuselage sections with head section (drill chuck) fixture is that flat side is connected.
Figure 11 A and Figure 11-lA is the sectional view of the electric hammer drill of four embodiment of the invention.
Figure 11 B and Figure 11-lB is the part figure of the structure chart of electric tool electric hammer drill in Figure 11, and illustrated therein is spanner-type drill chuck with turning set fixture is that flat side is connected.
Figure 12 A is the sectional view that electric hammer drill of the present invention clamps common spiral bit, and what illustrated therein is that head section (spanner-type drill chuck) clamps is common spiral bit.
Figure 12 is the stereogram that electric hammer drill of the present invention clamps common spiral bit, and what illustrated therein is that head section (spanner-type drill chuck) clamps is common spiral bit.
Figure 13 is electric hammer drill drill bit of the present invention, drill chuck, fuselage sections clamping schematic diagram substantially.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
with reference to Fig. 3 ~ Figure 13, a kind of dual-purpose drill chuck and its electric hammer drill of use.The inside of the drill chuck 22 of dual-purpose drill chuck is hollow.For manually fastened or spanner-type drill chuck structure, be provided with the holder of clamping electric drill drill bit through outer wall.With common drill chuck unlike, dual-purpose drill chuck rear portion of the present invention extends, and inwall has the key of the transmission electric hammer drill high pulling torque coordinated with the open slot of electric hammer drill.Rear end is the connecting portion realizing with the turning set of electric hammer drill being socketed, and connecting portion has fixed connection apparatus.In each following embodiment, shown in figure B is the connecting portion that turning set inserts dual-purpose drill chuck, and namely the connecting portion of dual-purpose drill chuck is carrier; Figure B1 or figure X-1B shown in be dual-purpose drill chuck connecting portion insert turning set, namely the connecting portion of dual-purpose drill chuck is insertion section.In the following description, in order to avoid repeating, only describe the scheme that figure B is corresponding in detail, another program that figure B1 or figure X-1B is corresponding is omitted.The present invention also provides a kind of electric hammer drill using above-mentioned dual-purpose drill chuck, comprises fuselage 23, installs drive motors 27, gear drive, turning set 39 and beater mechanism 42 in fuselage 23.Drive motors 27 is connected with the input of gear drive, the output of gear drive is connected with turning set 39, electric hammer drill also comprises above-mentioned dual-purpose drill chuck 22, be arranged on turning set 39 by fixed connection apparatus, dual-purpose drill chuck is provided with the key for transmitting the large button square of electric hammer drill, electric hammer drill can be arranged in drill chuck, beater mechanism 42 is positioned at the rear of electric hammer drill drill bit 21, dual-purpose drill chuck is provided with the holder of clamping electric drill drill bit through outer wall, and holder can assemble other drill bits such as fluted drill.
Described dual-purpose drill chuck is clamping specification is manually fastened drill chuck between bit diameter 6-20mm and spanner-type drill chuck.Be more than two kinds of conventional modes, certainly, also can adopt other modes that can realize.
Fig. 3 shows the electric hammer drill 20 in the present invention in a kind of first-selected embodiment.With reference to Fig. 3 and Fig. 5, Fig. 7, Fig. 7 A electric hammer drill 20 comprises a fuselage 23 and a dual-purpose drill chuck 22, drive motors 27 is placed in fuselage 23, it is outside that switch 24 is arranged on fuselage 23, and user controls the opening and closing of drive motors 27 by console switch 24.In the present embodiment, electric hammer drill 20 comprises an AC power cord 25 stretched out from fuselage sections 23, by the AC power of outside, drive motors 27 is powered, can certainly consider to adopt other modes to power to drive motors 27, such as dc source.Electric hammer drill drill bit 21 directly loads in dual-purpose drill chuck 22, and dual-purpose drill chuck 22 is connected with the turning set 39 of fuselage 23.Can by the Movement transmit of drive motors 27 to electric hammer drill 21 by the motion transmission mechanism of inside, thus order about electric hammer drill 21 pairs of objects and carry out operation processing.In the present embodiment, fuselage sections 23 and dual-purpose drill chuck 22 are two components independent of each other.
Illustrated therein is head section with reference to Fig. 3 and Fig. 5, Fig. 7, Fig. 7 A is spanner-type drill chuck 22.Its clamping specification comprises: bit diameter 6-20mm, concrete clamping dimension specification is bit diameter 6mm, 10mm, 13mm, 20mm.With reference to Fig. 7 B, illustrated therein is spanner-type drill chuck with turning set is that spline form is connected.
Illustrated therein is head section with reference to Fig. 4 and Fig. 6, Fig. 8, Fig. 8 A is manually fastened drill chuck 26.Its clamping specification comprises: bit diameter 6-20mm, concrete clamping dimension specification is bit diameter 6mm, 10mm, 13mm, 20mm.With reference to Fig. 8 B, illustrated therein is manually fastened drill chuck with turning set is that spline form is connected.
With reference to Fig. 7, Fig. 7 A, drive motors 27 driven wheel 44, gear 43, gear 41, a gear 40, turning set 39, dual-purpose drill chuck 22 output torque realizes electric hammer drill 21 rotary motion.Drive beater mechanism 42 simultaneously, piston 51 is done reciprocating linear motion in cylinder 52, make jump bit 50 constantly hit electric hammer drill 21.
Press drill bit fixed cover 36 with reference to Fig. 7, Fig. 7 A, dual-purpose drill chuck 22 is socketed on the turning set 39 of fuselage sections 23 by key form.Dual-purpose drill chuck 22 is connected to come transmitting torque with turning set 39 and realizes rotary motion.Be fixedly connected with and adopt steel ball connected mode, the cylindrical of turning set 39 has the toroidal cavity of stationary balls 28, accordingly dual-purpose drill chuck 22 has two steel ball holes, steel ball 28 is arranged in two steel ball holes and toroidal cavity successively.Steel ball 28, at the dual-purpose drill chuck 22 of axial restraint and turning set 39, prevents dual-purpose drill chuck 22 from getting loose.
The front end that Fig. 7 and Fig. 7 A shows dual-purpose drill chuck 22 has a dust prevention system and dual-purpose drill chuck 22 to be fixed together, and in dust prevention system, gland 30 has potted component 31 to coordinate to come dust-proof with electric hammer drill 21, and gland 30 and dual-purpose drill chuck 22 are fixed together.Prevent the dust of course of work peripheral and foreign matter from invading and damaging dual-purpose drill chuck 22, cause dual-purpose drill chuck 22 can not clamp other class drill bit.
As shown in Figure 7 A, in the present embodiment, the electric hammer drill for the ease of all size can be assembled to spanner-type drill chuck inside.Meanwhile, the electric hammer drill in order to assemble can have enough distances to move in drill chuck and turning set.
Preferably, the portion foremost of spanner-type drill chuck is 75mm to the distance D of fuselage sections, and usually, the scope of distance D is between 40mm to 100mm.Can be assembled on fuselage easily for the ease of head section (spanner-type drill chuck), in the present embodiment, preferably, head section (spanner-type drill chuck) is 20mm with the key external diameter C of the connection of turning set spline form, usually, the scope of outer diameter D is between 12mm to 50mm.
As shown in Figure 8 A, in the present embodiment, the electric hammer drill for the ease of all size can be assembled to manually fastened drill chuck inside.Meanwhile, the electric hammer drill in order to assemble can have enough distances to move in drill chuck and turning set.
Preferably, the portion foremost of manually fastened drill chuck is 75mm to the distance D of fuselage sections, and usually, the scope of distance D is between 40mm to 100mm.Can be assembled on fuselage easily for the ease of manually fastened drill chuck, in the present embodiment, preferably, the key external diameter C of the connection of manually fastened drill chuck and turning set key form be 20mm, and usually, the scope of external diameter C is between 12mm to 50mm.
Press drill bit fixed cover 36, the position of electric hammer drill 21 installed by described dual-purpose drill chuck 22, radial direction is had to run through the straight pin 32 of dual-purpose drill chuck 22 wall, electric hammer drill 21 is directly assembled in dual-purpose drill chuck 22, be axially fixed in dual-purpose drill chuck 22 by straight pin 32, namely the inner of straight pin 32 enters the closed slot of electric hammer drill handle, makes it can not slippage from dual-purpose drill jig 22.When unclamping drill bit fixed cover 36, by back-moving spring 38, drill bit fixed cover 36 is automatically reset, the drill bit retainer plate 37 in drill bit fixed cover 36 blocks the straight pin 32 of axial restraint electric hammer drill 21, prevents straight pin 32 from getting loose.
When needs dismantle electric hammer drill 21 from complete machine 20, first press drill bit fixed cover 36, the elastic force that drill bit fixed cover 36 and drill bit retainer plate 37 overcome back-moving spring 38 moves down.When drill bit fixed cover 36 moves down, make the straight pin 32 of axial restraint electric hammer drill 21 can outwards movement, now can extract electric hammer drill 21.
When needs dismantle dual-purpose drill chuck 22 from complete machine 20, first press drill chuck fixed cover 34, the elastic force that drill chuck fixed cover 34 and drill chuck retainer plate 35 overcome back-moving spring 38 moves down.When drill chuck fixed cover 34 moves down, make the steel ball 28 of the dual-purpose drill chuck 22 of axial restraint can outwards movement, now fast can dismantle dual-purpose drill chuck 22.
Fig. 9 and Fig. 9 A, Fig. 9 B shows another embodiment, wherein dual-purpose drill chuck 22 adopts thread connecting mode with the socket of fuselage sections 23, and electric hammer drill 21 is directly assembled in dual-purpose drill chuck 22 simultaneously, is axially fixed in the function realizing electric hammer in dual-purpose drill chuck 22 by straight pin 32.As shown in Figure 9 A, can be assembled on fuselage easily for the ease of dual-purpose drill chuck 22.Preferably, dual-purpose drill chuck 22 is 20mm with the major diameter of thread E of the connection of turning set thread connecting mode, and usually, the scope of major diameter of thread E is between 12mm to 50mm.
Figure 10 and Figure 10 A, Figure 10 B shows another embodiment, wherein dual-purpose drill chuck 22 adopts the conical surface to be socketed mode with the socket mode of the turning set 39 in fuselage sections 23, electric hammer drill 21 is directly assembled in dual-purpose drill chuck 22 simultaneously, is axially fixed in the function realizing electric hammer in dual-purpose drill chuck 22 by straight pin 32.As shown in Figure 10 A, can be assembled on fuselage easily for the ease of drill chuck.Preferably, the conical surface external diameter C of drill chuck and turning set conical surface type of attachment is 20mm, and usually, the scope of conical surface external diameter C is between 12mm to 50mm.
Figure 11 and Figure 11 A, Figure 11 B shows another embodiment, wherein simultaneously dual-purpose drill chuck 22 and the socket mode of the turning set 39 in fuselage sections 23 be connected with steel ball to adopt flat square set to connect mode, electric hammer drill 21 is directly assembled in dual-purpose drill chuck 22 simultaneously, is axially fixed in the function realizing electric hammer in dual-purpose drill chuck 22 by straight pin 32.As shown in Figure 11 A, can be assembled on fuselage easily for the ease of drill chuck.Preferably, dual-purpose drill chuck 22 is 20mm with the external diameter C of the flat side's type of attachment of turning set, and usually, the scope of external diameter C is between 12mm to 50mm.
Fig. 3, Fig. 4, Fig. 7 A, Fig. 8 A shows electric hammer drill of the present invention need not dismantle dual-purpose drill chuck 22, just electric hammer drill 21 directly can be assembled to the bore operation realizing electric hammer function in dual-purpose drill chuck 22.Figure 12 and Figure 12 A shows the dual-purpose drill chuck 22 directly common spiral bit 100 of clamping.
Figure 1A, Figure 1B show common electric hammer clamping electric hammer drill.Fig. 2, Fig. 2 A, Fig. 2 B shows after common electric hammer needs to be connected with drill chuck 101 with connecting rod 102 in addition and is being assemblied on electric hammer, then spiral bit 100 or other drill jigs are held on drill chuck realize bore operation.
By Fig. 3, Fig. 4, Fig. 7 A of the present invention, Figure 1A of Fig. 8 A, Figure 12 and Figure 12 A and common electric hammer, Figure 1B, Fig. 2, Fig. 2 A, Fig. 2 B can embody the present invention than common electric hammer clamp various drill bit time not only convenient, fast and also while increasing work efficiency improve precision.And can easy removal and installation replacing drill chuck.
In above-described embodiment, the various keys of dual-purpose drill chuck and fuselage sections, screw thread, the conical surface, flat horizontal surface four kinds of socket modes are described, those of ordinary skill in the art also can expect adopting other some fixtures such as elastic cylindrical pin or steel ball to realize being connected fast, easily and dismounting with fuselage by drill chuck in the present embodiment, and realizes electric hammer drill and be assemblied in the drilling function finally realizing electric hammer or electric drill in drill chuck.Fixture is also not limited to frame for movement, also can be some other device being realized fixing maintenance function by modes such as magnetic force.
The electric hammer drill that the present invention discloses is not limited to the content described in above embodiment and the structure represented by accompanying drawing.The change apparently that basis of the present invention is made the shape of wherein component and position, to substitute or amendment, all within the scope of protection of present invention.
Claims (9)
1. a dual-purpose drill chuck for fast changeable, drill chuck inside is in hollow; For manually fastened or spanner-type drill chuck, be provided with the holder of clamping electric drill drill bit through outer wall; Drill chuck back body extends, and inwall has the key coordinated with the open slot of electric hammer drill, has radial direction to run through the straight pin of drill chuck wall; It is characterized in that: rear end is the connecting portion realizing with the turning set of electric hammer drill being socketed, the appropriate section that connecting portion relatively rotates cover can be carrier or insertion section, and connecting portion has fixed connection apparatus; Described fixed connection apparatus is steel ball, the belled position of drill chuck and turning set, outer wall has two steel ball holes, the position that the inner layer tube wall of correspondence is corresponding has the toroidal cavity of stationary balls, described steel ball runs through two steel ball holes and enters in toroidal cavity; Be provided with drill bit fixed cover and the drill chuck fixed cover of combination: drill bit fixed cover is positioned at the rear portion of drill chuck, described drill bit fixed cover is sleeved on drill chuck, and install drill bit retainer plate in described drill bit fixed cover, described drill bit retainer plate coordinates with straight pin; The rear portion that drill chuck fixed cover is positioned at drill bit fixed cover is sleeved on drill chuck simultaneously, installing drill chuck retainer plate in drill chuck fixed cover, one end of back-moving spring withstands on described drill chuck retainer plate, the other end of described back-moving spring withstands on described drill bit retainer plate, described drill bit fixed cover blocks the straight pin of axial location electric hammer drill, and drill chuck fixed cover blocks the steel ball of axial location drill chuck and turning set.
2. a dual-purpose drill chuck for fast changeable as claimed in claim 1, is characterized in that: the socket join structure of its connecting portion is set to one of having structure, bond structure, helicitic texture, cone structure or flat square structure.
3. a dual-purpose drill chuck for fast changeable as claimed in claim 1 or 2, is characterized in that: described manually fastened drill chuck or spanner-type drill chuck, for clamping specification is the drill chuck between 6-20mm.
4. the dual-purpose drill chuck of a fast changeable as claimed in claim 1, it is characterized in that: outer dust prevention system is installed in described drill chuck outside, described outer dust prevention system comprises potted component and gland, described gland is assemblied in drill chuck front portion, and described potted component is sleeved on the outer wall of electric hammer drill.
5. an electric hammer drill, comprise fuselage, in fuselage, drive motors, gear drive, turning set and beater mechanism are installed, drive motors is connected with the input of gear drive, the output of gear drive is connected with turning set, it is characterized in that: described turning set is connected with as right power wants the dual-purpose drill chuck of the fast changeable of one of 1 to 4.
6. electric hammer drill as claimed in claim 5, it is characterized in that: the socket of the dual-purpose drill chuck of turning set and fast changeable is bond structure, turning set is provided with spline or keyway, the keyway be provided with the connecting portion of drill chuck or spline fitted, and described spline is nested in described keyway.
7. electric hammer drill as claimed in claim 5, it is characterized in that: the socket of the dual-purpose drill chuck of turning set and fast changeable is helicitic texture, turning set is provided with external screw thread or internal thread, the internal thread be provided with the connecting portion of drill chuck or external screw thread coordinate, and described external screw thread is arranged in described internal thread.
8. electric hammer drill as claimed in claim 5, it is characterized in that: the socket of the dual-purpose drill chuck of turning set and fast changeable is cone structure, turning set is provided with male cone (strobilus masculinus) or inner conical surface, and the inner conical surface be provided with drill chuck or male cone (strobilus masculinus) coordinate, and described male cone (strobilus masculinus) is arranged in described inner conical surface.
9. electric hammer drill as claimed in claim 5, it is characterized in that: the socket of the dual-purpose drill chuck of turning set and fast changeable is flat square structure, described turning set is provided with outer flat side or interior flat side, and in being provided with drill chuck, flat side or outer flat side coordinate, in the interior flat side that described outer flat side is arranged on.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210170625.3A CN102773841B (en) | 2012-05-25 | 2012-05-25 | The dual-purpose drill chuck of fast changeable and its electric hammer drill of use |
| PCT/CN2013/075554 WO2013174217A1 (en) | 2012-05-25 | 2013-05-13 | Quickly replaceable dual-purpose drill chuck and electric hammer drill using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210170625.3A CN102773841B (en) | 2012-05-25 | 2012-05-25 | The dual-purpose drill chuck of fast changeable and its electric hammer drill of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102773841A CN102773841A (en) | 2012-11-14 |
| CN102773841B true CN102773841B (en) | 2016-01-20 |
Family
ID=47119062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210170625.3A Active CN102773841B (en) | 2012-05-25 | 2012-05-25 | The dual-purpose drill chuck of fast changeable and its electric hammer drill of use |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102773841B (en) |
| WO (1) | WO2013174217A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108068066B (en) * | 2016-11-16 | 2023-09-12 | 苏州宝时得电动工具有限公司 | Conversion chuck, tool main body matched with conversion chuck for use and matched use method |
| CN106625440B (en) * | 2017-02-21 | 2023-08-04 | 聊城市茌平区豪杰建筑工程有限公司 | Electric hammer support for building punching |
| CN109834653A (en) * | 2017-11-28 | 2019-06-04 | 苏州宝时得电动工具有限公司 | Adapter and power tool for power tool |
| CN114055639A (en) * | 2021-11-19 | 2022-02-18 | 中国建筑第五工程局有限公司 | Detachable alloy drill bit chiseling electric hammer all-in-one machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149850A (en) * | 1994-06-07 | 1997-05-14 | 罗伯特-博希股份公司 | Toolholder for hand drill, in particular hammer drill and hand drill with toolholder |
| CN101043974A (en) * | 2004-09-02 | 2007-09-26 | 罗伯特·博世有限公司 | Portable power tool comprising an exchangeable tool holding fixture |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3516542A1 (en) * | 1985-05-08 | 1986-11-13 | Robert Bosch Gmbh, 7000 Stuttgart | TOOL HOLDER |
| DE4104131A1 (en) * | 1990-05-08 | 1991-11-14 | Bosch Gmbh Robert | HAND DRILLING MACHINE |
| DE10005910B4 (en) * | 2000-02-10 | 2005-10-13 | Robert Bosch Gmbh | Hand tool with a replaceable tool holder |
| CN202825748U (en) * | 2012-05-25 | 2013-03-27 | 浙江海王电器有限公司 | Novel electric hammer |
-
2012
- 2012-05-25 CN CN201210170625.3A patent/CN102773841B/en active Active
-
2013
- 2013-05-13 WO PCT/CN2013/075554 patent/WO2013174217A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149850A (en) * | 1994-06-07 | 1997-05-14 | 罗伯特-博希股份公司 | Toolholder for hand drill, in particular hammer drill and hand drill with toolholder |
| CN1047748C (en) * | 1994-06-07 | 1999-12-29 | 罗伯特-博希股份公司 | Toolholder for hand drill, in particular hammer drill and hand drill with toolholder |
| CN101043974A (en) * | 2004-09-02 | 2007-09-26 | 罗伯特·博世有限公司 | Portable power tool comprising an exchangeable tool holding fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102773841A (en) | 2012-11-14 |
| WO2013174217A1 (en) | 2013-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513978B (en) | Dual-purpose drill clamp and electric hammer drill using drill clamp | |
| CN103042507B (en) | Attachment | |
| CN103042508B (en) | Tool attachment | |
| CN102773841B (en) | The dual-purpose drill chuck of fast changeable and its electric hammer drill of use | |
| TW200720014A (en) | Dead spindle chucking system with sliding sleeve | |
| US20160346911A1 (en) | tool attachment for a hand-held power tool | |
| US20070290458A1 (en) | Replaceable adapter for an electric hand tool | |
| CN104972438B (en) | Power tool | |
| KR102243146B1 (en) | Core Drill | |
| KR101247496B1 (en) | Electric tool | |
| CN102892537A (en) | A core drilling machine and a handle assembly for a core drilling machine | |
| CN202825748U (en) | Novel electric hammer | |
| JP5317492B2 (en) | Tool spindle and chuck spindle with common parts | |
| CN201442113U (en) | Quick change device of drill chuck | |
| CN202592341U (en) | Novel electric hammer | |
| CN205869503U (en) | Chuck and use power tool of this chuck | |
| CN112894710A (en) | Close-fitting installation push-in device | |
| CN205734768U (en) | Hand held power machine | |
| CN107282959A (en) | Chuck and the power tool using the chuck | |
| KR20100054921A (en) | Boring spindle head connecting unit of machine tool | |
| CN201659549U (en) | Electric hammer quickly clamping mechanism | |
| EP1524057A3 (en) | Tool driving assembly, especially for driving a thread finishing tool of a thread-finishing device | |
| CN201702401U (en) | Grip | |
| CN215037074U (en) | Close-fitting installation push-in device | |
| EP3277914B1 (en) | System, method, core drill bit and hand held core drilling machine for hole drilling in an object |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190904 Address after: 321200 No. 18 Huanglong Third Road, Huanglong Industrial Zone, Hushan Street, Wuyi County, Jinhua City, Zhejiang Province Patentee after: Jinhua poly Electric Appliance Co., Ltd. Address before: 321200 No. 18 Huanglong Third Road, Huanglong Industrial Zone, Hushan Street, Wuyi County, Zhejiang Province Patentee before: Zhejiang SKT Electric Machine Co., Ltd. |