CN101912982A - Keyless drill chuck - Google Patents
Keyless drill chuck Download PDFInfo
- Publication number
- CN101912982A CN101912982A CN201010287282XA CN201010287282A CN101912982A CN 101912982 A CN101912982 A CN 101912982A CN 201010287282X A CN201010287282X A CN 201010287282XA CN 201010287282 A CN201010287282 A CN 201010287282A CN 101912982 A CN101912982 A CN 101912982A
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- Prior art keywords
- chain wheel
- drill
- ring
- hand fastening
- drill body
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- 241001656951 Protheca Species 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention provides a keyless drill chuck, belongs to the technical field of machinery, and solves the problem of easy looseness of a drill after the conventional keyless drill chuck is installed. The keyless drill chuck comprises a drill body and a front sleeve and a rear sleeve which are sleeved on the outer side of the drill body in turn and are barrel-shaped, wherein a cavity is formed among the front sleeve, the rear sleeve and the drill body; an annular spiral ring of which the upper part is provided with a groove is arranged in the cavity; the drill body is provided with three equant inclined holes; a clamping jaw of which the outer side is provided with an external thread is arranged in each inclined hole respectively; the spiral ring is in threaded connection with the clamping jaws; and an adjustment structure is arranged on the upper side of the spiral ring in the cavity and can drive the spiral ring to rotate when the front sleeve is rotated. The keyless drill chuck has the advantages of realizing bidirectional self locking and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of hand fastening drill clutch, the particularly a kind of hand fastening drill clutch that can realize bidirectional locking.
Background technology
Hand fastening drill clutch is a kind of daily life instrument, normally is used for installing or fixedly during article, is used for perforating boring.Existing hand fastening drill clutch generally is made up of drill body, jaw, screw, bearing, back cover, protheca.Three jaws are installed in respectively in three five equilibrium inclined holes of drill body, and screw is installed in the screw groove, and the screw thread of screw and jaw forms thread transmission, and the back cover is connected with screw, and protheca is fixedlyed connected with drill body, and there are screwed hole or taper hole in the drill body rear portion.When installing and using, the screwed hole at drill body rear portion is connected with the power transmission shaft screw rod of power equipment, and the power transmission shaft rotary drill bit drives three-jaw and folded instrument rotates synchronously.During clamping tool, hold and relatively rotate back cover and protheca, make with the jaw of screw in drill body of back cover connection and rotate,, jaw is moved forward in oblique three holes of drill body and clamp pad through the screw thread transmission of screw and jaw.
But there is following shortcoming in this hand fastening drill clutch: mounted drill chuck vibration can occur when working, and easily makes drilling tool loosening when vibration or impact, influences operating efficiency, and poor stability; Moreover, for reaching the purpose that drilling tool is clamped, locking mechanism is housed in drill chuck, be difficult for forming owing to structure is too complicated like this and produce in enormous quantities.When particularly holing on cement plate, owing to will produce strong vibrations, make the loosening or further clamping of drill chuck easily, and then influence drilling quality, the drill bit that may fracture when serious produces dangerous.The punching back pine head that do not spud in perhaps occurs, cause follow-up work to carry out.
Summary of the invention
The objective of the invention is to have the problems referred to above, proposed a kind of hand fastening drill clutch that can realize bidirectional self-locking at existing technology.
Purpose of the present invention can realize by following technical proposal:
This hand fastening drill clutch, comprise drill body and be placed in the tubular protheca and the back cover in the drill body outside successively, form cavity between described protheca, back cover and the drill body, be provided with in the form of a ring in the described cavity and its top has the volution of groove, offer the inclined hole of three five equilibriums on the described drill body, be respectively equipped with its outside in the described inclined hole and have externally threaded jaw, above-mentioned volution is threaded with jaw, it is characterized in that, be positioned at the volution upside in the described cavity and also be provided with adjustment structure, described adjustment structure can drive the volution rotation when the rotation protheca.
During the work of this hand fastening drill clutch, each parts is in place, the rotation protheca drives adjustment structure, thereby drives the rotation of volution, up to clamping drill bit.When unclamping chuck, inverse time rotation protheca drives adjustment structure, thereby drives the rotation of volution, until chuck is unclamped.
In above-mentioned hand fastening drill clutch, described adjustment structure comprises the fixedly chain wheel that is fixed on the drill body in the form of a ring, the bottom of described fixedly chain wheel has the double wedge of ring-type, below fixing chain wheel, be provided with the movable chain wheel that can rotate freely around the body center line, has projection on the described movable chain wheel, described projection can be inserted in the groove of above-mentioned volution, and the top of described movable chain wheel also has double wedge; The top of described fixedly chain wheel is provided with fixture, and described fixture is connected by a connection piece with movable chain wheel.
For movable chain wheel can be rotated freely around the body center line, movable chain wheel and drill body matched in clearance.When work, the rotation protheca drives the rotation of fixture, connector, movable chain wheel, volution, up to clamping drill bit.
In above-mentioned hand fastening drill clutch, have ring-shaped step on the described drill body, the place is provided with elastic component at ring-shaped step, and an end of described elastic component is resisted against on the ring-shaped step, and the other end and above-mentioned movable chain wheel lean.
The purpose that elastic component is set is, guarantee movable chain wheel be subjected to force direction to cheat all morning fixedly chain wheel.
In above-mentioned hand fastening drill clutch, described fixture in the form of a ring and its underpart have indent, described connector in the form of a ring and its top have evagination with described indent coupling.Be provided with like this, cooperate by evagination and indent and realize being connected between connector and the fixture that its syndeton is simple.
In above-mentioned hand fastening drill clutch, described connector bottom has concavity portion, and the top of above-mentioned projection is arcuation, and during the rotation protheca, the top of projection can contact with concavity portion every bit.Be provided with like this, can make movable chain wheel and fixedly chain wheel engagement or disengaging by rotating certain angle.
In above-mentioned hand fastening drill clutch, have stopper slot on the described drill body, have limiting section on the described fixedly chain wheel with the stopper slot coupling.During installation, stopper slot cooperates with limiting section, can prevent that fixedly chain wheel rotates around the center line of drill body.
In above-mentioned hand fastening drill clutch, the downside of described volution also has bearing and bearing gasket, and described bearing can be resisted against on the above-mentioned jaw.
In above-mentioned hand fastening drill clutch, described elastic component is a spring.
Compared with prior art, this hand fastening drill clutch has the following advantages:
This hand fastening drill clutch is rational in infrastructure, and the design science is easy to assembly, and the drilling tool after installing is difficult for loosening; Its stable work in work, simple to operate, laborsaving, applied widely is applicable to the clamping of various drilling tools, and can realize producing in batches; The chuck self-locking is effective, and is economical and practical.
Description of drawings
Fig. 1 is the structural representation of hand fastening drill clutch provided by the invention.
Fig. 2 is the exploded perspective view of hand fastening drill clutch provided by the invention.
Fig. 3 is the schematic diagram of part parts in the hand fastening drill clutch provided by the invention.
Fig. 4 is the structural representation of fixture in the hand fastening drill clutch provided by the invention.
Fig. 5 is the structural representation of connector in the hand fastening drill clutch provided by the invention.
Fig. 6 is the fixing structural representation of chain wheel in the hand fastening drill clutch provided by the invention.
Fig. 7 is the structural representation of movable chain wheel in the hand fastening drill clutch provided by the invention.
Fig. 8 is the structural representation of drill body in the hand fastening drill clutch provided by the invention.
Among the figure, 1, drill body; 11, stopper slot; 2, protheca; 3, back cover; 4, volution; 5, jaw; 6, fixing chain wheel; 61, limiting section; 7, movable chain wheel; 71, projection; 8, fixture; 81, indent; 9, connector; 91, evagination; 92, concavity portion; 10, elastic component; 100, bearing; 101, bearing gasket.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Hand fastening drill clutch as depicted in figs. 1 and 2 comprises drill body 1 and is placed in the tubular protheca 2 and the back cover 3 in drill body 1 outside successively, offers the inclined hole of three five equilibriums on the drill body 1, is respectively equipped with its outside in the inclined hole and has externally threaded jaw 5.Form cavity between protheca 2, back cover 3 and the drill body 1, be provided with in the cavity in the form of a ring and its top has the volution 4 of groove, above-mentioned volution 4 and jaw 5 are by being threaded.Be positioned at volution 4 tops and also be provided with adjustment structure in cavity, described adjustment structure can drive volution 4 rotations when rotation protheca 2.
Concrete, as shown in Figure 3, adjustment structure comprises the fixedly chain wheel 6 that is fixed on the drill body 1 in the form of a ring, and fixedly the bottom of chain wheel 6 has the double wedge of ring-type, below fixing chain wheel 6, be provided with the movable chain wheel 7 that can rotate freely around the body center line, movable chain wheel 7 and drill body 1 matched in clearance.As shown in Figure 7, have projection 71 on the movable chain wheel 7, projection 71 can be inserted in the groove of volution 4, and the top of movable chain wheel 7 also has double wedge.Fixedly the top of chain wheel 6 is provided with fixture 8, and fixture 8 is connected by a connection piece 9 with movable chain wheel 7.As shown in Figure 8, have ring-shaped step on the drill body 1, be provided with elastic component 10 at the ring-shaped step place, an end of elastic component 10 is resisted against on the ring-shaped step, and the other end and above-mentioned movable chain wheel 7 lean.Concrete, the elastic component 10 in the present embodiment is a spring.
As shown in Figure 4, fixture 8 in the form of a ring and its underpart have indent 81, connector 9 in the form of a ring and its top have evagination 91 with described indent 81 couplings.As shown in Figure 5, connector 9 bottoms have concavity portion 92, and above-mentioned protruding 71 top is arcuation, and during rotation protheca 2, the top of projection 71 can contact with concavity portion 92 every bits.As shown in Figure 8, have stopper slot 11 on the drill body 1, as shown in Figure 6, fixedly have limiting section 61 on the chain wheel 6 with stopper slot 11 couplings.As depicted in figs. 1 and 2, the downside of volution 4 also has bearing 100 and bearing gasket 101, and bearing 100 can be resisted against on the jaw 5.
The operation principle of this hand fastening drill clutch is: each parts is in place.Rotation protheca 2 drives fixture 8, connector 9, movable chain wheel 7, volution 4 rotations, up to clamping drill bit.Continuing increases moment of torsion, and when the frictional force between connector 9 and the movable chain wheel 7 was not enough to support the moment of torsion of increase, connector 9 and movable chain wheel 7 will turn over the angle of setting.At this moment, movable chain wheel 7 relies on the elastic force of stage clip to move axially and fixedly chain wheel 6 engagements.Continue rotation protheca 2, movable chain wheel 7 again by with the ramp effect of connector 9 contact positions and fixedly chain wheel 6 clutches, the continuation reinforcing directly causes and clamps drill bit fully.Unclamp protheca 2 back and rely on the effect activity chain wheel 7 on inclined-planes and fixing chain wheel 6 to mesh fully, reach the purpose of bidirectional self-locking.When unclamping chuck, inverse time rotation protheca 2 drives connector 9 and rotates.At this moment, because movable chain wheel 7 mesh fully with fixing chain wheel 6, movable chain wheel 7 can not be done rotation and move, and has only connector 9 to be rotated counterclockwise to desired location, and engagement could be opened fully.Continue to be rotated counterclockwise protheca 2, until chuck is unclamped.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used drill body 1, stopper slot 11, protheca 2, back cover 3, volution 4, jaw 5, fixing terms such as chain wheel 6, limiting section 61, movable chain wheel 7, protruding 71, fixture 8, indent 81, connector 9, evagination 91, concavity portion 92, elastic component 10, bearing 100, bearing gasket 101 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (8)
1. hand fastening drill clutch, (3) are overlapped in the tubular protheca (2) and the back that comprise drill body (1) and be placed in drill body (1) outside successively, described protheca (2), form cavity between back cover (3) and the drill body (1), be provided with in the form of a ring in the described cavity and its top has the volution (4) of groove, offer the inclined hole of three five equilibriums on the described drill body (1), be respectively equipped with its outside in the described inclined hole and have externally threaded jaw (5), above-mentioned volution (4) is threaded with jaw (5), it is characterized in that, be positioned at volution (4) upside in the described cavity and also be provided with adjustment structure, described adjustment structure can drive volution (4) rotation when rotation protheca (2).
2. hand fastening drill clutch according to claim 1, it is characterized in that, described adjustment structure comprises the fixedly chain wheel (6) that is fixed on the drill body (1) in the form of a ring, the double wedge that the bottom of described fixedly chain wheel (6) has ring-type, be provided with the movable chain wheel (7) that can rotate freely around the body center line in the fixing below of chain wheel (6), has projection (71) on the described movable chain wheel (7), described projection (71) can be inserted in the groove of above-mentioned volution (4), and the top of described movable chain wheel (7) also has double wedge; The top of described fixedly chain wheel (6) is provided with fixture (8), and described fixture (8) is connected by a connection piece (9) with movable chain wheel (7).
3. hand fastening drill clutch according to claim 2, it is characterized in that described drill body has ring-shaped step on (1), be provided with elastic component (10) at the ring-shaped step place, one end of described elastic component (10) is resisted against on the ring-shaped step, and the other end and above-mentioned movable chain wheel (7) lean.
4. according to claim 2 or 3 described hand fastening drill clutch, it is characterized in that, described fixture (8) in the form of a ring and its underpart have indent (81), described connector (9) in the form of a ring and its top have evagination (91) with described indent (81) coupling.
5. hand fastening drill clutch according to claim 4, it is characterized in that described connector (9) bottom has concavity portion (92), the top of above-mentioned projection (71) is arcuation, during rotation protheca (2), the top of projection (71) can contact with concavity portion (92) every bit.
6. according to claim 2 or 3 described hand fastening drill clutch, it is characterized in that having stopper slot (11) on the described drill body (1), have limiting section (61) on the described fixedly chain wheel (6) with stopper slot (11) coupling.
7. according to claim 1 or 2 or 3 described hand fastening drill clutch, it is characterized in that the downside of described volution (4) also has bearing (100) and bearing gasket (101), described bearing (100) can be resisted against on the above-mentioned jaw (5).
8. hand fastening drill clutch according to claim 3 is characterized in that, described elastic component (10) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287282 CN101912982B (en) | 2010-09-20 | 2010-09-20 | Keyless drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287282 CN101912982B (en) | 2010-09-20 | 2010-09-20 | Keyless drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101912982A true CN101912982A (en) | 2010-12-15 |
| CN101912982B CN101912982B (en) | 2013-01-02 |
Family
ID=43320701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010287282 Active CN101912982B (en) | 2010-09-20 | 2010-09-20 | Keyless drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101912982B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
| CN113059204A (en) * | 2021-03-30 | 2021-07-02 | 中国兵器装备集团自动化研究所有限公司 | Soft bar clamping tool and clamping system |
| CN116372084A (en) * | 2023-03-08 | 2023-07-04 | 江苏九天电气设备有限公司 | A press riveting device for block terminal production |
| WO2024000194A1 (en) * | 2022-06-28 | 2024-01-04 | 福比特精工科技有限公司 | Separation and connection switching assembly, drill chuck, power tool, and forward and reverse rotation method of drill chuck |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807745A (en) * | 1973-03-15 | 1974-04-30 | J Bent | Keyless drill chuck |
| GB2361885A (en) * | 2000-05-02 | 2001-11-07 | Chum Power Machinery Corp | Self locking chuck for power tools |
| CN201012400Y (en) * | 2007-04-20 | 2008-01-30 | 浙江三鸥机械股份有限公司 | Self-locking type clamping head of hand-locking drill |
| CN201055921Y (en) * | 2007-06-29 | 2008-05-07 | 浙江三鸥机械股份有限公司 | Self-locking type clamping head of hand-locking drill |
| CN201815687U (en) * | 2010-09-20 | 2011-05-04 | 浙江超力机械工具制造有限公司 | Keyless drill chuck |
-
2010
- 2010-09-20 CN CN 201010287282 patent/CN101912982B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807745A (en) * | 1973-03-15 | 1974-04-30 | J Bent | Keyless drill chuck |
| GB2361885A (en) * | 2000-05-02 | 2001-11-07 | Chum Power Machinery Corp | Self locking chuck for power tools |
| CN201012400Y (en) * | 2007-04-20 | 2008-01-30 | 浙江三鸥机械股份有限公司 | Self-locking type clamping head of hand-locking drill |
| CN201055921Y (en) * | 2007-06-29 | 2008-05-07 | 浙江三鸥机械股份有限公司 | Self-locking type clamping head of hand-locking drill |
| CN201815687U (en) * | 2010-09-20 | 2011-05-04 | 浙江超力机械工具制造有限公司 | Keyless drill chuck |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322057A (en) * | 2017-07-24 | 2017-11-07 | 浙江三鸥机械股份有限公司 | A kind of hand fastening drill clutch |
| CN107322057B (en) * | 2017-07-24 | 2023-09-15 | 浙江三鸥机械股份有限公司 | Hand-tightening drill chuck |
| CN113059204A (en) * | 2021-03-30 | 2021-07-02 | 中国兵器装备集团自动化研究所有限公司 | Soft bar clamping tool and clamping system |
| WO2024000194A1 (en) * | 2022-06-28 | 2024-01-04 | 福比特精工科技有限公司 | Separation and connection switching assembly, drill chuck, power tool, and forward and reverse rotation method of drill chuck |
| CN116372084A (en) * | 2023-03-08 | 2023-07-04 | 江苏九天电气设备有限公司 | A press riveting device for block terminal production |
| CN116372084B (en) * | 2023-03-08 | 2024-02-02 | 上海快速智能电气有限公司 | A press riveting device for block terminal production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101912982B (en) | 2013-01-02 |
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| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: 318014 No. 991, east section of Donghai Avenue, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Chaoli mechanical tools Co.,Ltd. Address before: 318000, No. 991 East China Sea Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: ZHEJIANG CHAOLI MECHANICAL TOOLS Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hand drill chuck Effective date of registration: 20220722 Granted publication date: 20130102 Pledgee: Agricultural Bank of China Limited Taizhou Bay New Area sub branch Pledgor: Zhejiang Chaoli mechanical tools Co.,Ltd. Registration number: Y2022330001507 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230710 Granted publication date: 20130102 Pledgee: Agricultural Bank of China Limited Taizhou Bay New Area sub branch Pledgor: Zhejiang Chaoli mechanical tools Co.,Ltd. Registration number: Y2022330001507 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hand tight drill chuck Effective date of registration: 20230711 Granted publication date: 20130102 Pledgee: Agricultural Bank of China Limited Taizhou Bay New Area sub branch Pledgor: Zhejiang Chaoli mechanical tools Co.,Ltd. Registration number: Y2023330001448 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20130102 Pledgee: Agricultural Bank of China Limited Taizhou Bay New Area sub branch Pledgor: Zhejiang Chaoli mechanical tools Co.,Ltd. Registration number: Y2023330001448 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hand tight drill chuck Granted publication date: 20130102 Pledgee: Agricultural Bank of China Limited Taizhou Bay New Area sub branch Pledgor: Zhejiang Chaoli mechanical tools Co.,Ltd. Registration number: Y2024330001432 |