CN101817099B - Spanner drill chuck - Google Patents
Spanner drill chuck Download PDFInfo
- Publication number
- CN101817099B CN101817099B CN2009100252622A CN200910025262A CN101817099B CN 101817099 B CN101817099 B CN 101817099B CN 2009100252622 A CN2009100252622 A CN 2009100252622A CN 200910025262 A CN200910025262 A CN 200910025262A CN 101817099 B CN101817099 B CN 101817099B
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- China
- Prior art keywords
- gear
- jaw
- drill body
- spiral shell
- spanner
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- 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.)
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Abstract
The invention discloses a spanner drill chuck. The side wall of a drill body is provided with a clamping jaw groove which receives jaws. A taper thread on inner sidewall of a thread toothed sleeve out of the drill body is threadly connected to the threads of the jaws. The top of the thread toothed sleeve tightly supports a step surface on top of the drill body. In a location hole of a gear location sleeve at the lower end of the drill body, the gear location sleeve is fixedly sleeved out of a gear location frame. Two ends of a first bevel gear form a location shaft and a fixed shaft. The fixed shaft is inserted in the location hole of the gear location sleeve. The location shaft is inserted in a gear location groove of the gear location frame. Two sides of the first bevel gear respectively support the out sidewall of the gear location groove and the inner sidewall of the gear location sleeve. A second bevel gear at the lower end of the thread toothed sleeve is meshed with the first bevel gear. The lower end surface of the thread toothed sleeve supports the upper surface of the gear location sleeve. The out side surface of the second bevel gear of the thread toothed sleeve is matched with the inner side surface of the gear location sleeve. The invention has high precision, convenient regulation, simplicity, labor saving, high mechanical strength of the clamping jaws, difficult deformation, high positioning precision and durability.
Description
Technical field
The present invention relates to a kind of drill chuck, particularly a kind of spanner drill chuck.
Background technology
At present in the prior art, spanner drill chuck is generally by drill body, overcoat, nut, jaw and Key jaw type spanner are formed, three jaws are distributed on the drill body in three inclined holes, nut and overcoat interference fit, the front end of overcoat is provided with helical teeth, the front end of drill body is provided with the fixing hole of restriction Key jaw type spanner position, nut is threaded with jaw, thereby driving the nut rotation by the operation overcoat drives jaw and pass in and out with clamping in inclined hole or unclamp drilling tool, Key jaw type spanner is inserted in the drill body fixing hole again, the tooth of Key jaw type spanner and the helical teeth engagement of being located at the overcoat front end, screw key spanner firmly, thereby drive overcoat around the drill body rotation, finally finish the clamping of drilling tool or unclamp, Key jaw type spanner is special-purpose auxiliary, be easy to lose or can not find for the moment, cause and to operate drilling tool, and during the screw key spanner owing to be single shaft location, the gear of Key jaw type spanner can't keep the state rotation of vertical its axial line, make the engaging tooth wheel set very quick-wearing scrap, the part bad mechanical strength of jaw clamping drilling tool, be easy to generate distortion, and jaw is to process on a cylinder, there is not special positioner, be easy to roll, influence the centralized positioning precision, the nut height is little, bad mechanical strength, be matched in clearance and the radial concentric location structure that does not have precision between drill body and the overcoat, the easy beat of overcoat breaks away from the drill body central axis during use, influences service precision.
Summary of the invention
In order to remedy above deficiency, the invention provides a kind of spanner drill chuck, this spanner drill chuck mechanical strength height, accurate positioning, easy to use, durable in use.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of spanner drill chuck, comprise drill body, jaw, spiral shell tooth cover and adjusting device, (it is vertical that service orientation refers to be as benchmark to use direction, drill bit is located at the end below the jaw), drill body is the beveled structure that falls of hollow, drill body sidewall equal intervals is interval with at least two jaw grooves, the drill body upper end is provided with a step surface, jaw one side just slidably is placed in the jaw groove of drill body, jaw is made up of the end of engagement on top and the pinching end of bottom, the jaw end of engagement is provided with thread engagement away from a side of drill body axial line, spiral shell tooth cover madial wall is provided with taper thread and boss, spiral shell tooth cover is sheathed on the drill body outside, taper thread on the spiral shell tooth cover madial wall is threaded with the end of engagement of jaw, the area that is threaded of this kind structure is big, alleviated the operating pressure of wall scroll screw thread, it is smooth and easy to be threaded, the spiral shell tooth puts end face and presses closer in the step surface downside of drill body upper end, the boss medial surface of spiral shell tooth cover cooperates with the drill body lateral surface, spiral shell tooth cover is axial with drill body, radial location, beat breaks away from the drill body central axis when effectively having prevented the rotation of spiral shell tooth cover, the service precision height, the adjusting device fixed cover is located at the drill body lower end, adjusting device comprises the gear locating rack, gear positioning sleeve and degree of tightness gear, to use direction to be benchmark, the gear locating rack is provided with at least one gear locating slot, gear positioning sleeve fixed cover is located on the gear locating rack lateral wall, gear positioning sleeve sidewall is provided with the locating hole with gear locating slot quantity and position consistency, the degree of tightness gear is by first bevel gear, the locating shaft that is fixedly arranged on first bevel gear, one side is formed (the degree of tightness gear is formed as one) with the fixed axis that is fixedly arranged on the first bevel gear opposite side, be provided with the spanner adjustment hole in the fixed axis, the fixed axis activity of degree of tightness gear is inserted in the locating hole of gear positioning sleeve, its locating shaft activity is inserted in the gear locating slot of gear locating rack, and the one side activity of first bevel gear only peaks at the gear locating slot lateral wall of gear locating rack, the first bevel gear opposite side activity only peaks at gear positioning sleeve madial wall, spiral shell tooth cover lower end is provided with second bevel gear, first bevel gear engagement of degree of tightness gear in second bevel gear of spiral shell tooth cover and the adjusting device, spiral shell tooth cover lower surface only peaks at gear positioning sleeve upper surface, second bevel gear of spiral shell tooth cover cooperates with gear positioning sleeve medial surface away from the lateral surface in axle center, this kind structure is supporting with the fixed axis and the locating shaft of degree of tightness gear, during use, effectively prevented degree of tightness gear axis line deflection, and spiral shell tooth cover is axial with adjusting device, radial location, effectively guaranteed the abundant engagement of gear pair, the wearing and tearing of gear pair have effectively been alleviated, adjusting device is by the rotation of control spiral shell tooth cover, thereby jaw is slided up and down, promptly adjust gap length between the pinching end of jaw, and then control jaw pinching end unclamping or clamp drill bit.During use, earlier drill bit is inserted in the jaw, rotate spiral shell tooth cover again, make jaw clamp drill bit, and then rotate spiral shell tooth cover by adjusting device and make jaw clamp drill bit, adjusting device control spiral shell tooth cover rotates multiple structure, such as comprising that also the rotatable longitudinal register of adjusting device and drill body is connected, adjusting device adopts spline to fixedly connected with spiral shell tooth cover, the adjusting device lateral wall is provided with swing handle, can regulate spiral shell tooth cover and rotate with adjusting device by pulling swing handle, said structure all is the structure that those of ordinary skill can be associated according to the present invention.
As a further improvement on the present invention, drill body sidewall equal intervals is interval with three jaw grooves.
As a further improvement on the present invention, jaw is a polygon prism shape structure, and the jaw groove of drill body is the polygon prism shape groove that cooperates with jaw.
As a further improvement on the present invention, the adjusting device fixed cover is located at the drill body lower end structure: be benchmark to use direction, adjusting device is sheathed on the lateral wall of drill body lower end, drill body is provided with and the degree of tightness gear quantity of adjusting device and the keyway of position consistency, locating shaft one end of degree of tightness gear just is placed in the keyway of drill body, be provided with the positioning key consistent with keyway quantity, positioning key just can be inserted in the keyway, and the positioning key upper end only peaks at the lateral wall of degree of tightness gear locating shaft.
As a further improvement on the present invention, gear locating rack equal intervals is interval with three gear locating slots, and then correspondence equidistantly is interval with three keyways on the drill body sidewall.
As a further improvement on the present invention, jaw groove and keyway equidistantly are provided with at interval.
As a further improvement on the present invention, the spanner adjustment hole in the fixed axis is the hexagon counterbore that cooperates with the standard hex spanner.
As a further improvement on the present invention, the pinching end of jaw is the taper cylinder, and the gear locating rack madial wall of adjusting device is provided with the jaw locating slot that cooperates with the jaw pinching end, and the pinching end of jaw just is slidedly located in the jaw locating slot, jaw is repeated the location, has improved its positioning accuracy.
Useful technique effect of the present invention is: drill body and spiral shell tooth cover and spiral shell tooth cover all axially and radially all have precision positioning with adjusting device, the service precision height, adjusting device is fixedlyed connected with drill body, prevent that effectively adjusting device from losing and cause drill chuck to use, and easy to adjust, simple, laborsaving, and jaw is polygon rib type, the mechanical strength height, not yielding, the positioning accuracy height is durable in use.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a front view of the present invention;
Fig. 3 is the A-A cutaway view of Fig. 1.
The specific embodiment
Embodiment: a kind of spanner drill chuck, comprise drill body 1, jaw 2, spiral shell tooth cover 3 and adjusting device 4, (it is vertical that service orientation refers to be as benchmark to use direction, drill bit is located at the end below the jaw), drill body 1 is the beveled structure that falls of hollow, drill body 1 sidewall equal intervals is interval with at least two jaw grooves 11, drill body 1 upper end is provided with a step surface 12, jaw 2 one sides just slidably are placed in the jaw groove 11 of drill body 1, jaw 2 is made up of the end of engagement 21 on top and the pinching end 22 of bottom, jaw end of engagement 21 is provided with thread engagement 23 away from a side of drill body 1 axial line, the spiral shell tooth overlaps 3 madial walls and is provided with taper thread 31 and boss 32, spiral shell tooth cover 3 is sheathed on drill body 1 outside, the taper thread 31 that the spiral shell tooth overlaps on 3 madial walls is threaded with the end of engagement 21 of jaw 2, this kind structure area that is threaded is big, alleviated the operating pressure of wall scroll screw thread, it is smooth and easy to be threaded, the spiral shell tooth overlaps 3 upper surfaces and presses closer step surface 12 downsides in drill body 1 upper end, boss 32 medial surfaces of spiral shell tooth cover 3 cooperate with drill body 1 lateral surface, spiral shell tooth cover 3 is axial with drill body 1, radial location, beat breaks away from drill body 1 central axis when effectively having prevented 3 rotations of spiral shell tooth cover, the service precision height, adjusting device 4 fixed covers are located at drill body 1 lower end, adjusting device 4 comprises gear locating rack 41, gear positioning sleeve 42 and degree of tightness gear 43, to use direction to be benchmark, gear locating rack 41 is provided with at least one gear locating slot 411, gear positioning sleeve 42 fixed covers are located on gear locating rack 41 lateral walls, gear positioning sleeve 42 sidewalls are provided with the locating hole 421 with gear locating slot 411 quantity and position consistency, degree of tightness gear 43 is by first bevel gear 431, the locating shaft 432 that is fixedly arranged on first bevel gear, 431 1 sides is formed (degree of tightness gear 43 is formed as one) with the fixed axis 433 that is fixedly arranged on first bevel gear, 431 opposite sides, be provided with spanner adjustment hole 434 in the fixed axis 433, fixed axis 433 activities of degree of tightness gear 43 are inserted in the locating hole 421 of gear positioning sleeve 42, its locating shaft 432 activities are inserted in the gear locating slot 411 of gear locating rack 41, and the 431 1 side activities of first bevel gear only peak at gear locating slot 411 lateral walls of gear locating rack 41, the 431 opposite side activities of first bevel gear only peak at gear positioning sleeve 42 madial walls, the spiral shell tooth overlaps 3 lower ends and is provided with second bevel gear 33, second bevel gear 33 of spiral shell tooth cover 3 meshes with first bevel gear 431 of adjusting device 4 interior degree of tightness gears 43, the spiral shell tooth overlaps 3 lower surfaces and only peaks at gear positioning sleeve 42 upper surfaces, second bevel gear 33 of spiral shell tooth cover 3 cooperates with gear positioning sleeve 42 medial surfaces away from the lateral surface in axle center, this kind structure is supporting with the fixed axis 433 and the locating shaft 432 of degree of tightness gear, during use, degree of tightness gear 43 axial line deflections have effectively been prevented, and spiral shell tooth cover 3 is axial with adjusting device 4, radial location, effectively guaranteed the abundant engagement of gear pair, the wearing and tearing of gear pair have effectively been alleviated, adjusting device 4 can be controlled the rotation of spiral shell tooth cover 3, thereby jaw 2 is slided up and down, promptly adjust 22 gap lengths of pinching end of jaw 2, and then the unclamping or clamp of control jaw 2 pinching ends 22 pairs of drill bits.During use, earlier drill bit is inserted in the jaw 2, rotate spiral shell tooth cover 3 again, make jaw 2 clamp drill bit, and then rotate spiral shell teeth cover 3 by adjusting device 4 and make jaw 2 clamp drill bits, adjusting device 4 control spiral shell tooth covers 3 rotate multiple structure, such as comprising that also the rotatable longitudinal register of adjusting device and drill body is connected, adjusting device adopts spline to fixedly connected with spiral shell tooth cover, the adjusting device lateral wall is provided with swing handle, can regulate spiral shell tooth cover and rotate with adjusting device by pulling swing handle, said structure all is the structure that those of ordinary skill can be associated according to the present invention.
Described drill body 1 sidewall equal intervals is interval with three jaw grooves 11.
Described jaw 2 is a polygon prism shape structure, and the jaw groove 11 of drill body 1 is the polygon prism shape groove that cooperates with jaw 2.
Described adjusting device 4 fixed covers are located at drill body 1 lower end structure: be benchmark to use direction, adjusting device 4 is sheathed on the drill body 1 lower end lateral wall, drill body 1 is provided with and degree of tightness gear 43 quantity of adjusting device 4 and the keyway 13 of position consistency, locating shaft 432 1 ends of degree of tightness gear 43 just are placed in the keyway 13 of drill body 1, be provided with the positioning key 5 consistent with keyway 13 quantity, positioning key 5 just can be inserted in the keyway 13, and positioning key 5 upper ends only peak at the lateral wall of degree of tightness gear 43 locating shafts 432.
Described gear locating rack 41 equal intervals are interval with three gear locating slots 411, and then correspondence equidistantly is interval with three keyways 13 on drill body 1 sidewall.
Described jaw groove 11 equidistantly is provided with at interval with keyway 13.
The pinching end 22 of described jaw 2 is the taper cylinder, gear locating rack 41 madial walls of adjusting device 4 are provided with the jaw locating slot 412 that cooperates with jaw pinching end 22, the pinching end 22 of jaw just is slidedly located in the jaw locating slot 412, and jaw 2 is repeated the location, has improved its positioning accuracy.
Claims (8)
1. spanner drill chuck, comprise drill body (1), jaw (2), spiral shell tooth cover (3) and adjusting device (4), to use direction to be benchmark, drill body (1) is the beveled structure that falls of hollow, drill body (1) sidewall equal intervals is interval with at least two jaw grooves (11), drill body (1) upper end is provided with a step surface (12), jaw (2) one sides just slidably are placed in the jaw groove (11) of drill body (1), jaw (2) is made up of the end of engagement (21) on top and the pinching end (22) of bottom, jaw end of engagement (21) is provided with thread engagement (23) away from a side of drill body (1) axial line, spiral shell tooth cover (3) madial wall is provided with taper thread (31) and boss (32), spiral shell tooth cover (3) is sheathed on drill body (1) outside, taper thread (31) on spiral shell tooth cover (3) madial wall is threaded with the end of engagement (21) of jaw (2), spiral shell tooth cover (3) upper surface presses closer in step surface (12) downside of drill body (1) upper end, boss (32) medial surface of spiral shell tooth cover (3) cooperates with drill body (1) lateral surface, it is characterized in that: adjusting device (4) fixed cover is located at drill body (1) lower end, adjusting device (4) comprises gear locating rack (41), gear positioning sleeve (42) and degree of tightness gear (43), to use direction to be benchmark, gear locating rack (41) is provided with at least one gear locating slot (411), gear positioning sleeve (42) fixed cover is located on gear locating rack (41) lateral wall, gear positioning sleeve (42) sidewall is provided with the locating hole (421) with gear locating slot (411) quantity and position consistency, degree of tightness gear (43) is by first bevel gear (431), the fixed axis (433) that is fixedly arranged on the locating shaft (432) of first bevel gear (431) one sides and is fixedly arranged on first bevel gear (431) opposite side is formed, be provided with spanner adjustment hole (434) in the fixed axis (433), fixed axis (433) activity of degree of tightness gear (43) is inserted in the locating hole (421) of gear positioning sleeve (42), its locating shaft (432) activity is inserted in the gear locating slot (411) of gear locating rack (41), and (431) the one side activities of first bevel gear only peak at gear locating slot (411) lateral wall of gear locating rack (41), first bevel gear (431) opposite side activity only peaks at gear positioning sleeve (42) madial wall, spiral shell tooth cover (3) lower end is provided with second bevel gear (33), second bevel gear (33) of spiral shell tooth cover (3) and the engagement of first bevel gear (431) of the interior degree of tightness gear of adjusting device (4) (43), spiral shell tooth cover (3) lower surface only peaks at gear positioning sleeve (42) upper surface, and second bevel gear (33) of spiral shell tooth cover (3) cooperates with gear positioning sleeve (42) medial surface away from the lateral surface in axle center.
2. a kind of spanner drill chuck according to claim 1 is characterized in that: drill body (1) sidewall equal intervals is interval with three jaw grooves (11).
3. a kind of spanner drill chuck according to claim 1 is characterized in that: jaw (2) is a polygon prism shape structure, and the jaw groove (11) of drill body (1) is the polygon prism shape groove that cooperates with jaw.
4. a kind of spanner drill chuck according to claim 1, it is characterized in that: adjusting device (4) fixed cover is located at drill body (1) lower end structure and is: be benchmark to use direction, adjusting device (4) is sheathed on the lateral wall of drill body (1) lower end, drill body (1) is provided with and degree of tightness gear (43) quantity of adjusting device (4) and the keyway (13) of position consistency, locating shaft (432) one ends of degree of tightness gear (43) just are placed in the keyway (13) of drill body (1), be provided with the positioning key (5) consistent with keyway (13) quantity, positioning key (5) just can be inserted in the keyway (13), and positioning key (5) upper end only peaks at the lateral wall of degree of tightness gear (43) locating shaft (432).
5. a kind of spanner drill chuck according to claim 4 is characterized in that: gear locating rack (41) equal intervals is interval with three gear locating slots (411), and then correspondence equidistantly is interval with three keyways (13) on drill body (1) sidewall.
6. a kind of spanner drill chuck according to claim 5 is characterized in that: jaw groove (11) equidistantly is provided with at interval with keyway (13).
7. a kind of spanner drill chuck according to claim 1 is characterized in that: the hexagon counterbore of the spanner adjustment hole (434) in the fixed axis (433) for cooperating with the standard hex spanner.
8. a kind of spanner drill chuck according to claim 1, it is characterized in that: the pinching end (22) of jaw (2) is the taper cylinder, gear locating rack (41) madial wall of adjusting device (4) is provided with the jaw locating slot (412) that cooperates with jaw pinching end (22), and the pinching end of jaw (22) just is slidedly located in the jaw locating slot (412).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100252622A CN101817099B (en) | 2009-02-26 | 2009-02-26 | Spanner drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100252622A CN101817099B (en) | 2009-02-26 | 2009-02-26 | Spanner drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817099A CN101817099A (en) | 2010-09-01 |
| CN101817099B true CN101817099B (en) | 2011-12-14 |
Family
ID=42652454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100252622A Expired - Fee Related CN101817099B (en) | 2009-02-26 | 2009-02-26 | Spanner drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101817099B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2773818B1 (en) * | 2011-10-25 | 2016-12-28 | Eczacibasi Yapi Gerecleri Sanayi Ve Ticaret Anonim Sirketi | Method of mounting a toilet bowl on a wall and mounting kit used therefore |
| WO2015157931A1 (en) * | 2014-04-16 | 2015-10-22 | 威海达旺五金制品有限责任公司 | Drill chuck |
| CN108500345A (en) * | 2018-03-22 | 2018-09-07 | 中车青岛四方机车车辆股份有限公司 | A kind of boring bar tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4214765A (en) * | 1978-12-08 | 1980-07-29 | Roehm Guenter H | Lockable drill chuck |
| US4274642A (en) * | 1978-02-25 | 1981-06-23 | Robert Bosch Gmbh | Tool chuck |
| EP0185162A1 (en) * | 1984-12-15 | 1986-06-25 | Günter Horst Röhm | Drill chuck, particularly for percussive boring |
| CN2447088Y (en) * | 2000-10-25 | 2001-09-12 | 山东威达机床工具集团总公司 | Wrench drill clamping chuck |
| CN100413620C (en) * | 2005-09-23 | 2008-08-27 | 浙江三鸥机械股份有限公司 | Wrench drill clamping chuck |
| CN201357238Y (en) * | 2009-02-26 | 2009-12-09 | 邵怡青 | Spanner drill chuck |
-
2009
- 2009-02-26 CN CN2009100252622A patent/CN101817099B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274642A (en) * | 1978-02-25 | 1981-06-23 | Robert Bosch Gmbh | Tool chuck |
| US4214765A (en) * | 1978-12-08 | 1980-07-29 | Roehm Guenter H | Lockable drill chuck |
| EP0185162A1 (en) * | 1984-12-15 | 1986-06-25 | Günter Horst Röhm | Drill chuck, particularly for percussive boring |
| CN2447088Y (en) * | 2000-10-25 | 2001-09-12 | 山东威达机床工具集团总公司 | Wrench drill clamping chuck |
| CN100413620C (en) * | 2005-09-23 | 2008-08-27 | 浙江三鸥机械股份有限公司 | Wrench drill clamping chuck |
| CN201357238Y (en) * | 2009-02-26 | 2009-12-09 | 邵怡青 | Spanner drill chuck |
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| Publication number | Publication date |
|---|---|
| CN101817099A (en) | 2010-09-01 |
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