CN105345100A - Lock-carried hand-tight drill chuck capable of releasing deformation force - Google Patents
Lock-carried hand-tight drill chuck capable of releasing deformation force Download PDFInfo
- Publication number
- CN105345100A CN105345100A CN201510951989.9A CN201510951989A CN105345100A CN 105345100 A CN105345100 A CN 105345100A CN 201510951989 A CN201510951989 A CN 201510951989A CN 105345100 A CN105345100 A CN 105345100A
- Authority
- CN
- China
- Prior art keywords
- nut sleeve
- shell fragment
- protheca
- screw
- lock
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
Abstract
The invention relates to a lock-carried hand-tight drill chuck capable of releasing deformation force. The lock-carried hand-tight drill chuck comprises a drill body, a clamping jaw, a nut, a nut sleeve, a bearing, a bearing pad, a front sleeve and a back sleeve, wherein a one-way ratchet is arranged at the outer circle of the front end of the drill body; the nut sleeve is provided with an elastic piece; the elastic piece is provided with a positioning projection and a locking projection; a pawl is arranged at the side of the locking projection; the front cover has a groove and a projection inside to fit the projections on the elastic piece; two symmetric driving ports are formed in the nut sleeve; a force releasing opening is formed between the two driving ports; one or two elastic projections are arranged at the outer circle part of the upper opening end of the nut sleeve; and the corresponding part of the front cover is provided with a locking positioning groove and a releasing positioning groove. The lock-carried hand-tight drill chuck facilitates to reduce local forced deformation of the elastic piece due to the release of the pressing force of the front sleeve in the locking process. The lock-carried hand-tight drill chuck is reasonable in structure, long in service life of the elastic piece, excellent in locking performance and possession of an anti-loosing effect.
Description
Technical field
The present invention relates to a kind of hand-operated tools drill chuck, specifically a kind of closefisted drill chuck with lock discharging deformation force.
Background technology
The structure of existing hand fastening drill clutch mainly comprises drill body, jaw, screw, nut sleeve, bearing, bearing gasket, protheca and rear cover, drill body there are three inclined holes, jaw moves by the screw-threaded engagement inside the screw thread of side and screw in inclined hole, nut sleeve is interference fitted on screw, protheca and nut sleeve coordinate, protheca rotating band movable wire mother set is rotated, nut sleeve drives screw to rotate, screw drives jaw to move, bearing is arranged between bearing gasket and screw, bearing gasket is arranged on drill body, and rear cover is interference fitted in drill body rear end.The locking mechanism of the hand-tight drill chuck with locking function of U.S. Patent number US5765839A is on the basis of existing hand fastening drill clutch, and adding drill body head cylindrical has unidirectional ratchet; Nut sleeve is equipped with shell fragment; Shell fragment has a positioning convex, have a lock projection, there is a ratchet lock projection side.Protheca is inner fluted and protrudingly to match with the projection on shell fragment.It is little with moment of uncaging to there is moment of locking in this locking mechanism, and clutch vibration test and the real shortcoming of playing test protheca and easily loosening, shell fragment is out of shape in nut sleeve, without shortcomings such as Free up Memories.
Summary of the invention
Technical problem to be solved by this invention overcomes above-mentioned the deficiencies in the prior art, and provide a kind of rational in infrastructure, easy for operation, shell fragment long service life, locking property is good, has the closefisted drill chuck with lock of the discharged deformation force of locking effect.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of closefisted drill chuck with lock discharging deformation force, it comprises drill body, jaw, screw, nut sleeve, bearing, bearing gasket, protheca and rear cover, drill body there are three inclined holes, jaw moves by the screw-threaded engagement inside the screw thread of side and screw in inclined hole, nut sleeve is interference fitted on screw, and protheca and nut sleeve coordinate, and protheca rotating band movable wire mother set is rotated, nut sleeve drives screw to rotate, and screw drives jaw to move, described drill body head cylindrical has unidirectional ratchet, nut sleeve is equipped with shell fragment, shell fragment there are a positioning convex and a lock projection, there is a ratchet lock projection side, protheca is inner fluted and protrudingly to match with the projection on shell fragment, nut sleeve front end is provided with driving claw or drives groove, circumferential wall is arranged with two driving mouths corresponding with the projection on shell fragment, it is characterized in that: two on described nut sleeve drive the centre of mouth to be provided with a release force opening, nut sleeve upper open end cylindrical position is provided with one or two elastic bumps, described elastic bumps is positioned at above or below corresponding driving mouth on nut sleeve, the corresponding position of described protheca is provided with locking positioning groove and unclamps detent.
The present invention adopts technique scheme, and particularly nut sleeve is provided with release force opening, and the shell fragment be conducive in locking process is subject to the release of the oppressive force of protheca, reduces the P-Coercive distortion of shell fragment, increases the service life of shell fragment; Simultaneously also because nut sleeve is provided with elastic bumps, protheca is provided with locking positioning groove and unclamps detent, and locking process plays increases locking effect, improves the serviceability of product.Against existing technologies, the present invention is rational in infrastructure, shell fragment long service life, and locking property is good, has locking effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further.
Fig. 1 is a kind of exploded perspective view forming structure of the present invention.
Fig. 2 is the protheca three-dimensional view in Fig. 1.
Fig. 3 is the protheca cross sectional view in Fig. 1.
Fig. 4 is the nut sleeve three-dimensional view in Fig. 1.
Fig. 5 is the shell fragment three-dimensional view in Fig. 1.
Fig. 6 is the exploded perspective view of another kind composition structure of the present invention.
Fig. 7 is the protheca three-dimensional view in Fig. 6.
Fig. 8 is the protheca cross sectional view in Fig. 6.
Fig. 9 is the nut sleeve three-dimensional view in Fig. 6.
Label in figure is: cover after 01., 02. drill body, 03. jaw, 04. bearing gasket, 05. bearing, 06. screw, 07. nut sleeve, 08. shell fragment, 09. protheca.021. unidirectional ratchet, 071. driving claw or driving groove, 072. release force opening, 073. elastic bumps, 074. drives mouth, 081. positioning convex, 082. lock projection, 083. imposed deformation position, 084. ratchet, 091. unclamps shell fragment groove, 092. unclamps detent, 093. locking positioning groove, and 094. locking shell fragment is protruding, 095. unclamps shell fragment detent, 096. locking shell fragment detent.
Detailed description of the invention
As can be seen from Fig. 1, Fig. 6, Fig. 5, a kind of closefisted drill chuck with lock discharging deformation force, it comprises drill body 02, jaw 03, screw 06, nut sleeve 07, bearing 05, bearing gasket 04, protheca 09 and rear cover 01 etc.Drill body 02 has three inclined holes, jaw 03 moves by the screw-threaded engagement inside the screw thread of side and screw 06 in inclined hole, and nut sleeve 07 is interference fitted on screw, protheca and nut sleeve coordinate, protheca rotating band movable wire mother set is rotated, and nut sleeve drives screw to rotate, and screw drives jaw to move.Described drill body 01 front end cylindrical has unidirectional ratchet 021, shell fragment 08 nut sleeve 07 is equipped with, shell fragment 08 there are a positioning convex 081 and a lock projection 082 and an imposed deformation position 083, there is a sour jujube lock projection side, 084, protheca 09 inside has to unclamp shell fragment groove 091 and lock shell fragment detent 096 matches with the projection on shell fragment.Protheca 09 is also provided with locking shell fragment projection 095.Nut sleeve 07 front end is provided with driving claw or drives groove 071, nut sleeve circumferential wall is also provided with two symmetrical driving mouths 074, drives mouth 074 corresponding with the projection on shell fragment.Above-mentioned composition structure and concrete annexation identical with the hand-tight drill chuck with locking function of US5765839A with use procedure, belong to prior art, repeat no more.
Feature of the present invention is: two on described nut sleeve 07 drive the centre of mouth 074 to be provided with a release force opening 072, nut sleeve 07 upper open end cylindrical position is provided with one or two elastic bumps 73, and described elastic bumps 73 is positioned at above or below corresponding driving mouth 74 on nut sleeve; As shown in Fig. 4 or Fig. 9.
The corresponding position of described protheca 09 is provided with locking positioning groove 093 and unclamps detent 092.As shown in Fig. 2, Fig. 3 or Fig. 7, Fig. 8.
In described two schemes, protheca is different with the assembling grafting of nut sleeve, and principle is the same.Accordingly, nut sleeve front end is provided with driving claw 071 or drives groove 071.Driving claw 071 is the projection of stretching out, and drives groove to be 071 1 kinds of groove structures.
When the present invention uses, protheca 09 drives nut sleeve 07 to rotate together with shell fragment 08, the positioning convex 081 of shell fragment 08 and lock projection are in the driving mouth 074 that 082 two of being inserted on nut sleeve 07 are symmetrical, the positioning convex 081 of shell fragment 08 unclamps in shell fragment detent 095 at protheca 09, the lock projection 082 of shell fragment 08 is unclamped in shell fragment groove 091 at protheca 09, the elastic bumps 073 of nut sleeve 07 unclamps in detent 092 at protheca 09, imposed deformation position 083 on shell fragment 08 is in the release force opening 072 of nut sleeve 07, when clamping drilling tool, protheca 09 is rotated further, when rotatory force increases, when being greater than the elastic force of the elastic bumps 073 on the elastic force of the positioning convex 081 of shell fragment 08 and nut sleeve 07, protheca 09 rotates, nut sleeve 07 and shell fragment 08 do not rotate, positioning convex 081 on shell fragment 08 moves in locking shell fragment detent 096 from unclamping in shell fragment detent 095 of protheca 09, the lock projection 082 of shell fragment 08 unclamps from protheca 09 protruding 094 position of locking shell fragment that shell fragment groove 091 moves to protheca 09, the ratchet 084 of shell fragment 08 is pressed in the ratchet 021 on drill body 02, in the process, shell fragment 08 stress deformation, imposed deformation position 083 on shell fragment 08 is outwards moved at release force opening 072 internal diameter of nut sleeve 07, improve the stressing conditions of shell fragment 08.Elastic bumps 073 on nut sleeve 07 moves to locking positioning groove 093 from the detent 092 that unclamps of protheca 09, if rotatory force is enough large, protheca 09 drives the driving claw of nut sleeve 07 or drives groove 071 to be rotated further, nut sleeve 07 and shell fragment 08 rotate together with following, ratchet 084 can slide into another ratchet 021 from a ratchet, until protheca 09 turn is motionless, instrument is clamped.During back off tool, protheca 09 counter-rotation, ratchet 084 on shell fragment 08 is stuck on ratchet 021, shell fragment 08 and nut sleeve 07 motionless, protheca 09 needs the elastic bumps 073 on the elastic force of the positioning convex 081 first overcome on shell fragment 08 and nut sleeve 07, this just adds than prior art moment of unblanking, the elastic force of the elastic bumps 073 on nut sleeve 07 affects the size of moment of unblanking, protheca 09 compresses the positioning convex 081 on shell fragment 08 and the elastic bumps 073 on nut sleeve 07, the elastic bumps 073 of nut sleeve 07 moves to from the locking positioning groove 093 of protheca 09 and unclamps detent 092, what the positioning convex 081 of shell fragment 08 moved to protheca 09 from the locking shell fragment detent 096 of protheca 09 unclamps in shell fragment detent 095, what the lock projection 082 of shell fragment 08 moved to protheca 09 from the locking shell fragment projection 094 of protheca 09 unclamps in shell fragment groove 091, ratchet 084 on shell fragment 08 pops into position by elasticity, depart from the ratchet 021 on drill body 02, reach object of uncaging.
The present invention is by above-mentioned improvement, two on nut sleeve 07 drive the middle of mouth 074 to increase a release force opening 072, the object shell fragment 08 be used in locking process is subject to the release of the oppressive force of protheca 09, reduces the P-Coercive distortion of shell fragment 08, increases the service life of shell fragment 08; One or more elastic bumps 073 is increased at any one cylindrical position, side, openend of two openends of nut sleeve 07, increase locking positioning groove 093 at the corresponding position of corresponding protheca 09 and unclamp detent 092 simultaneously, this structure plays in product locking process increases locking effect, improves the serviceability of product.
Claims (1)
1. one kind can discharge the closefisted drill chuck with lock of deformation force, it comprises drill body, jaw, screw, nut sleeve, bearing, bearing gasket, protheca and rear cover, drill body there are three inclined holes, jaw moves by the screw-threaded engagement inside the screw thread of side and screw in inclined hole, nut sleeve is interference fitted on screw, and protheca and nut sleeve coordinate, and protheca rotating band movable wire mother set is rotated, nut sleeve drives screw to rotate, and screw drives jaw to move, described drill body head cylindrical has unidirectional ratchet, nut sleeve is equipped with shell fragment, shell fragment there are a positioning convex and a lock projection, there is a ratchet lock projection side, protheca is inner fluted and protrudingly to match with the projection on shell fragment, nut sleeve front end is provided with driving claw or drives groove, circumferential wall is arranged with two driving mouths corresponding with the projection on shell fragment, it is characterized in that: two on described nut sleeve drive the centre of mouth to be provided with a release force opening, nut sleeve upper open end cylindrical position is provided with one or two elastic bumps, described elastic bumps is positioned at above or below corresponding driving mouth on nut sleeve, the corresponding position of described protheca is provided with locking positioning groove and unclamps detent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951989.9A CN105345100B (en) | 2015-12-18 | 2015-12-18 | A kind of closefisted drill chuck with lock of releasable deformation force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510951989.9A CN105345100B (en) | 2015-12-18 | 2015-12-18 | A kind of closefisted drill chuck with lock of releasable deformation force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105345100A true CN105345100A (en) | 2016-02-24 |
| CN105345100B CN105345100B (en) | 2019-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510951989.9A Active CN105345100B (en) | 2015-12-18 | 2015-12-18 | A kind of closefisted drill chuck with lock of releasable deformation force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105345100B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999825A (en) * | 2016-11-01 | 2018-05-08 | 苏州宝时得电动工具有限公司 | Power tool and workpiece installation method |
| CN109454252A (en) * | 2018-12-05 | 2019-03-12 | 山东威达机械股份有限公司 | The clamping device and collet of collet |
| CN110039083A (en) * | 2019-04-25 | 2019-07-23 | 山东威达雷姆机械有限公司 | A kind of locking drill chuck |
| CN110508839A (en) * | 2019-07-02 | 2019-11-29 | 山东威达雷姆机械有限公司 | A kind of anti-loosening locking drill chuck |
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| CN1268422A (en) * | 1999-03-31 | 2000-10-04 | 布莱克-德克尔公司 | Holder for drilling means/screw driver |
| EP1529584A1 (en) * | 2003-11-06 | 2005-05-11 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Bush for a Chuck and method of its manufacture |
| CN2721288Y (en) * | 2004-08-04 | 2005-08-31 | 山东威达机械股份有限公司 | Manual self-locking drill bit |
| CN1853836A (en) * | 2005-04-19 | 2006-11-01 | 雅各布卡盘制造公司 | Chuck with improved sleeve |
| CN2877928Y (en) * | 2005-10-20 | 2007-03-14 | 山东威达机械股份有限公司 | Collet with elastic force bearing ring |
| CN201613372U (en) * | 2009-12-29 | 2010-10-27 | 苏州宝时得电动工具有限公司 | Chuck and electric tool using same |
| ES2359887T3 (en) * | 1994-10-31 | 2011-05-27 | Röhm Gmbh | DRILL HOLDER, ESPECIALLY FOR DRILLING WITH PERCUSSION. |
| CN102166663A (en) * | 2011-04-19 | 2011-08-31 | 南京久驰机电实业有限公司 | Quick-change drill chuck |
| CN102248192A (en) * | 2010-05-21 | 2011-11-23 | 苏州宝时得电动工具有限公司 | Collet |
| CN203156117U (en) * | 2013-04-24 | 2013-08-28 | 山东威达机械股份有限公司 | Quick-change drill chuck |
| CN205237156U (en) * | 2015-12-18 | 2016-05-18 | 山东威达机械股份有限公司 | Hand -tight drill chuck of area lock of deforming force can release |
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2015
- 2015-12-18 CN CN201510951989.9A patent/CN105345100B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2359887T3 (en) * | 1994-10-31 | 2011-05-27 | Röhm Gmbh | DRILL HOLDER, ESPECIALLY FOR DRILLING WITH PERCUSSION. |
| CN1268422A (en) * | 1999-03-31 | 2000-10-04 | 布莱克-德克尔公司 | Holder for drilling means/screw driver |
| EP1529584A1 (en) * | 2003-11-06 | 2005-05-11 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Bush for a Chuck and method of its manufacture |
| CN2721288Y (en) * | 2004-08-04 | 2005-08-31 | 山东威达机械股份有限公司 | Manual self-locking drill bit |
| CN1853836A (en) * | 2005-04-19 | 2006-11-01 | 雅各布卡盘制造公司 | Chuck with improved sleeve |
| CN2877928Y (en) * | 2005-10-20 | 2007-03-14 | 山东威达机械股份有限公司 | Collet with elastic force bearing ring |
| CN201613372U (en) * | 2009-12-29 | 2010-10-27 | 苏州宝时得电动工具有限公司 | Chuck and electric tool using same |
| CN102248192A (en) * | 2010-05-21 | 2011-11-23 | 苏州宝时得电动工具有限公司 | Collet |
| CN102166663A (en) * | 2011-04-19 | 2011-08-31 | 南京久驰机电实业有限公司 | Quick-change drill chuck |
| CN203156117U (en) * | 2013-04-24 | 2013-08-28 | 山东威达机械股份有限公司 | Quick-change drill chuck |
| CN205237156U (en) * | 2015-12-18 | 2016-05-18 | 山东威达机械股份有限公司 | Hand -tight drill chuck of area lock of deforming force can release |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999825A (en) * | 2016-11-01 | 2018-05-08 | 苏州宝时得电动工具有限公司 | Power tool and workpiece installation method |
| CN109454252A (en) * | 2018-12-05 | 2019-03-12 | 山东威达机械股份有限公司 | The clamping device and collet of collet |
| CN110039083A (en) * | 2019-04-25 | 2019-07-23 | 山东威达雷姆机械有限公司 | A kind of locking drill chuck |
| CN110508839A (en) * | 2019-07-02 | 2019-11-29 | 山东威达雷姆机械有限公司 | A kind of anti-loosening locking drill chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105345100B (en) | 2019-09-24 |
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