CN2776598Y - Self-locking anti-loose drill chuck - Google Patents
Self-locking anti-loose drill chuck Download PDFInfo
- Publication number
- CN2776598Y CN2776598Y CNU2005200808310U CN200520080831U CN2776598Y CN 2776598 Y CN2776598 Y CN 2776598Y CN U2005200808310 U CNU2005200808310 U CN U2005200808310U CN 200520080831 U CN200520080831 U CN 200520080831U CN 2776598 Y CN2776598 Y CN 2776598Y
- Authority
- CN
- China
- Prior art keywords
- locking
- screw
- nut sleeve
- self
- protheca
- 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.)
- Expired - Fee Related
Links
- 239000012634 fragment Substances 0.000 claims abstract description 26
- 241001656951 Protheca Species 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 238000009827 uniform distribution Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 abstract description 7
- 241001074085 Scophthalmus aquosus Species 0.000 abstract 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Abstract
The utility model relates to a self-locking anti-loosening drill chuck, including the brill body, the clamping jaw, the screw cover, a bearing, the front cover, the back cover, three clamping jaw is installed respectively in the three halving inclined hole of the brill body, the screw forms screw thread drive mechanism with the clamping jaw, be equipped with the ratchet according to the circumference equipartition on the brill body bearing platform excircle, be equipped with the locking shell fragment and two location shell fragments of two symmetries on the screw cover, the front cover inboard is equipped with and compresses tightly arch and positioning groove, the design has relative pivoted space between front cover and the screw cover, compress tightly the arch on the front cover and compress tightly or loosen the locking shell fragment on the screw cover, locking shell fragment meshes or unclamps with the ratchet on the brill body, positioning groove of front cover and the location shell fragment cooperation location on the screw cover, form self. The utility model discloses operation convenient to use, swift, reliable can not make the drilling tool not hard up because of vibration or impact, is applicable to the clamping of various drilling tools.
Description
Technical field
The utility model relates to a kind of drilling tool clamping device, specifically a kind of self-locking anti-loosing type drill chuck.
Background technology
We know that existing hand fastening drill clutch generally is made up of drill body, jaw, screw, nut sleeve, bearing, protheca, back cover.Three jaws are installed in respectively in three five equilibrium inclined holes of drill body, screw is installed in the screw groove of drill body, the screw thread of screw and the screw thread of jaw form thread transmission, nut sleeve is fixedlyed connected with screw, protheca is connected with screw or nut sleeve key, bearing places between the end face and screw of drill body screw groove, and the back cover 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, drives drill body drive three-jaw and folded instrument when power transmission shaft rotates and rotates synchronously.During clamping tool, hold and relatively rotate protheca and back cover, the screw that connects with the protheca key is rotated at the jaw of circumferencial direction in drill body, through the screw thread transmission of the screw thread and the jaw one side external surface screw thread of screw inboard, jaw is moved in the inclined hole of drill body forward or backward and clamp or the back off tool handle.Existing drill chuck location coincides together with locked position, and drill chuck is when work, owing to vibrate or impact, drill chuck is easily loosening, has a strong impact on operating efficiency, reliability, poor stability.Or drill chuck has self-locking mechanism, should not form production in enormous quantities but structure is too complicated.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, has auto-lock function, high efficiency, stable performance, reliable operation, self-locking anti-loosing type drill chuck easy to use.
The technical scheme that the above-mentioned technical problem that solves the utility model adopts is: a kind of self-locking anti-loosing type drill chuck, include drill body, jaw, screw, nut sleeve, bearing, protheca, the back cover, three jaws are installed in respectively in three five equilibrium inclined holes of drill body, screw is installed in the screw groove of drill body, bearing is installed between drill body and the screw, screw and jaw form thread transmission, nut sleeve is fixedlyed connected with screw, it is characterized in that: drill body pedestal cylindrical is provided with the ratchet by circumference uniform distribution, nut sleeve is provided with locking shell fragment and two Location resilient pieces of two symmetries, the protheca inboard be provided with respectively with nut sleeve on locking shell fragment and corresponding projection and the detent of compressing of Location resilient piece, protheca and nut sleeve key cooperate interlock, design has space in relative rotation between them, the relative nut sleeve of protheca can be in this revolution space rotation, the projection that compresses on the protheca compresses or unclamps locking shell fragment on the nut sleeve, locking shell fragment on the nut sleeve and the ratchet engagement on the drill body or unclamp, the detent of protheca cooperates the location with Location resilient piece on the nut sleeve, forms the self-locking locking gear.
The said drill body pedestal of the utility model outer circumference surface interference fit has the ring gear that has reverse tooth of a circumference uniform distribution.Locking shell fragment on itself and the nut sleeve cooperates, and forms the pawl ratchet structure, realizes the locking function of controlled unidirectional rotation, reverse check.The detent of protheca cooperates the location with Location resilient piece on the nut sleeve, has locking functions.The utility model has the self-locking locking functions owing to adopt said structure, and it is easy for operation, have rational in infrastructure, working stability, easy to use, advantage such as self-locking property is reliable is applicable to the clamping of various drilling tools.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A schematic cross-section of Fig. 1;
Fig. 3 is the structural representation of the utility model nut sleeve;
Fig. 4 is the vertical view of Fig. 3.
Label among the figure is: 01. drill body, 01-1. ratchet, 02. back cover, 03. screw, 04. jaw, 05. nut sleeve, 05-1. locks shell fragment, the 05-2. Location resilient piece, and 06. protheca, 06-1. compresses projection, 06-2. the release detent, 06-3. locking positioning groove, 07. bearing, 08. ring gear, 09. jump ring.
The specific embodiment
As can be seen from Figure 1, a kind of drill chuck of the utility model includes drill body 01, back cover 02, screw 03, jaw 04, nut sleeve 05, protheca 06, bearing 07, jump ring 09 etc.Three jaws 04 are installed in respectively in three five equilibrium inclined holes of drill body 01, screw 03 is installed in the screw groove of drill body 01, screw 03 forms thread transmission with the screw thread of jaw 04, nut sleeve 05 is fixedlyed connected with screw 03, back cover 02 is fixedlyed connected with drill body 01, and there are screwed hole or taper hole in drill body 01 rear portion.Bearing 07 grade places between the end face and screw 03 of drill body 01 screw groove.When installing and using, the screwed hole at drill body rear portion is connected with the power transmission shaft screw rod of power equipment, drives drill body drive three-jaw and folded instrument when power transmission shaft rotates and rotates synchronously.During clamping tool, hold and relatively rotate protheca and back cover, the nut sleeve and the jaw of screw in drill body that connect with protheca are rotated, through the screw thread transmission of the screw thread and the jaw one side external surface screw thread of screw inboard, jaw is moved in the inclined hole of drill body forward or backward and clamp or the back off tool handle.The pass of said structure and each parts is a prior art, and this does not describe in detail.
It can also be seen that from Fig. 1, Fig. 2 the utility model drill body 01 pedestal cylindrical is provided with the ratchet 01-1 by circumference uniform distribution.Ratchet 01-1 is reverse tooth, and it can be directly arranged on the drill body 01, also can be the ring gear that has reverse tooth 08 that drill body pedestal outer circumference surface interference fit has a circumference uniform distribution.Nut sleeve 05 is provided with locking shell fragment 05-1 and two Location resilient piece 05-2 of two symmetries, as shown in Figure 3, Figure 4.The stressed ratchet 01-1 with drill body 01 of locking shell fragment 05-1 wedge angle part meshes on the nut sleeve, and Location resilient piece 05-2 is an arc convex.Protheca 06 inboard be provided with respectively with nut sleeve on locking shell fragment and corresponding protruding 06-1 and detent 06-2, the 06-3 of compressing of Location resilient piece, protheca 06 and nut sleeve 05 key cooperate interlock, design has space in relative rotation between them, protheca 06 relative nut sleeve 05 can be in this revolution space rotation, the protruding 06-1 that compresses on the protheca compresses or unclamps locking shell fragment 05-1 on the nut sleeve, locking shell fragment on the nut sleeve and the ratchet engagement on the drill body or unclamp, form the pawl ratchet structure, realize the locking function of controlled unidirectional rotation, reverse check.The release detent 06-2 of protheca, locking positioning groove 06-3 cooperate the location with Location resilient piece 05-2 on the nut sleeve, form the detent mechanism of locking and release, have locking functions.Form the self-locking locking gear.
The utility model is when work, rotate with holding tight protheca 06, the nut sleeve and the jaw of screw in drill body that connect with protheca are rotated, through the screw thread transmission of the screw thread and the jaw one side external surface screw thread of screw inboard, jaw is moved in the inclined hole of drill body forward or backward and clamp or the back off tool handle.Thereby realize clamping, the release function of drill chuck.When near clamping, screw is near stop motion, protheca 06 drives nut sleeve 05 and rotates, when torque reaches certain numerical value, protheca 06 can be done relative running with nut sleeve 05, the protruding 06-1 that compresses on the protheca compresses locking shell fragment 05-1 on the nut sleeve, and locking shell fragment 05-1 on the nut sleeve and the ratchet engagement on the drill body form self-locking mechanism; Meanwhile, Location resilient piece 05-2 forwards locking positioning groove 06-3 to from the release detent 06-2 of protheca 06, and the engaging location guarantees that self-locking structure can not unclamp because of vibrating or impacting, and forms locking gear, reaches the locking purpose of self-locking.
When unclamping, move just in time opposite, when clamping drilling tool, by unclamping direction rotation protheca 06, owing between screw and the jaw certain resistance is arranged, relatively rotate between protheca 06 and the nut sleeve 05, the protruding 06-1 of compressing on the protheca breaks away from locking shell fragment 05-1 on the nut sleeve 05, locking shell fragment 05-1 and ratchet 01-1 on the drill body 01 is broken away from mesh; Meanwhile, Location resilient piece 05-2 forwards release detent 06-2 to from the locking positioning groove 06-3 of protheca 06, and the process that drill chuck unclamps is realized in engaging location, and then 05 rotation of plastics protheca 06 continuation drive nut sleeve.
The utility model self-locking anti-loosing type drill chuck is in the performance that guarantees hand-tight chuck, be provided with locking and drive effectively combination and the link gear that separates, compare with the manually fastened chuck on the existing market, thereby make the higher complete machine that guarantees of its performance be tending towards more reliable duty, locking shell fragment 05-1 and the ratchet 01-1 on the drill body on the nut sleeve form controlled pawl ratchet pair, realize the locking function of controlled unidirectional rotation, reverse check.The utlity model has the self-locking locking functions, can or not impact that lock be unclamped, cause drilling tool loosening because of vibration, have rational in infrastructure, working stability, easy to use, advantage such as self-locking property is reliable is applicable to the clamping of various drilling tools.
Claims (6)
1, a kind of self-locking anti-loosing type drill chuck includes drill body, jaw, screw, nut sleeve, bearing, protheca, back cover; Three jaws are installed in respectively in three five equilibrium inclined holes of drill body, screw is installed in the screw groove of drill body, bearing is installed between drill body and the screw, screw and jaw form thread transmission, nut sleeve is fixedlyed connected with screw, it is characterized in that: drill body pedestal cylindrical is provided with the ratchet by circumference uniform distribution, nut sleeve is provided with locking shell fragment and two Location resilient pieces of two symmetries, the protheca inboard be provided with respectively with nut sleeve on locking shell fragment and corresponding projection and the detent of compressing of Location resilient piece, protheca and nut sleeve key cooperate interlock, design has space in relative rotation between them, the relative nut sleeve of protheca can be in this revolution space rotation, the projection that compresses on the protheca compresses or unclamps locking shell fragment on the nut sleeve, locking shell fragment on the nut sleeve and the ratchet engagement on the drill body or unclamp, the detent of protheca cooperates the location with Location resilient piece on the nut sleeve, forms the self-locking locking gear.
2, self-locking anti-loosing type drill chuck as claimed in claim 1 is characterized in that: directly be processed with the reverse tooth by circumference uniform distribution on the drill body pedestal cylindrical.
3, self-locking anti-loosing type drill chuck as claimed in claim 1 is characterized in that: drill body pedestal outer circumference surface interference fit has the ring gear that has reverse tooth of a circumference uniform distribution.
4, self-locking anti-loosing type drill chuck as claimed in claim 1 is characterized in that: the stressed ratchet engagement with drill body of locking shell fragment wedge angle part.
5, self-locking anti-loosing type drill chuck as claimed in claim 1, it is characterized in that: Location resilient piece is an arc convex on the nut sleeve.
6, self-locking anti-loosing type drill chuck as claimed in claim 1, it is characterized in that: the detent of protheca comprises release detent and locking positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200808310U CN2776598Y (en) | 2005-03-08 | 2005-03-08 | Self-locking anti-loose drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200808310U CN2776598Y (en) | 2005-03-08 | 2005-03-08 | Self-locking anti-loose drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2776598Y true CN2776598Y (en) | 2006-05-03 |
Family
ID=36743984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200808310U Expired - Fee Related CN2776598Y (en) | 2005-03-08 | 2005-03-08 | Self-locking anti-loose drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2776598Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213478A (en) * | 2018-01-19 | 2018-06-29 | 浙江三鸥机械股份有限公司 | A kind of drill chuck for increasing release torque |
| CN109848455A (en) * | 2019-04-01 | 2019-06-07 | 山东威达机械股份有限公司 | A kind of self-locking clamping chuck of drill bit |
-
2005
- 2005-03-08 CN CNU2005200808310U patent/CN2776598Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213478A (en) * | 2018-01-19 | 2018-06-29 | 浙江三鸥机械股份有限公司 | A kind of drill chuck for increasing release torque |
| CN109848455A (en) * | 2019-04-01 | 2019-06-07 | 山东威达机械股份有限公司 | A kind of self-locking clamping chuck of drill bit |
| CN109848455B (en) * | 2019-04-01 | 2024-05-31 | 山东威达机械股份有限公司 | Self-locking drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060503 Termination date: 20130308 |