CN2865943Y - Hand tightening drill chuck with boosting - Google Patents
Hand tightening drill chuck with boosting Download PDFInfo
- Publication number
- CN2865943Y CN2865943Y CN 200620101510 CN200620101510U CN2865943Y CN 2865943 Y CN2865943 Y CN 2865943Y CN 200620101510 CN200620101510 CN 200620101510 CN 200620101510 U CN200620101510 U CN 200620101510U CN 2865943 Y CN2865943 Y CN 2865943Y
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- CN
- China
- Prior art keywords
- nut
- reinforcement
- spring leaf
- drill
- rotary sleeve
- 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
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Abstract
The utility model provides a keyless drill chuck with reinforcement, which is composed of drill body, nut, grip jaw connected to nut screw and rotation sleeve driving nut. Axial direction puller mechanism is set at the back of nut. The puller mechanism is composed of rolling element and part with reinforcement bevel matching rolling element. Moreover, component installed on nut that rotate along with nut and that can enable rolling element and part with reinforcement bevel to generate relative motion along reinforcement bevel. Internal wall of rotation sleeve is set with mechanism for controlling matching condition between the component and puller mechanism. The utility model, with rotation sleeve, controls pusher mechanism, ensures continuous pushing operation, pushing removal, drill chuck clamping and loosening, simplifies structure and facilitates operation.
Description
Technical field
The utility model relates to a kind of drill chuck, relates in particular to a kind of for example drill chuck on drilling machine, the electric drill of machining equipment and electric tool that is installed in.
Background technology
Present hand fastening drill clutch, it generally is provided with drill body, jaw, the nut of axial location and the rotary sleeve of operating nut, three jaws are separately positioned in three inclined holes that are distributed on the drill body, adopt between nut and the jaw and be threaded, jaw passes in and out in inclined hole to clamp or the drilling tool that gets loose thereby the operation rotary sleeve drives nut rotation drive, the mode of rotary sleeve operating nut can be that rotary sleeve directly is connected with nut and drives nut, also can be to be connected indirectly with nut, and torsion be passed to nut to drive nut by intermediary element by one or several intermediary element.The nut operated by rotary motion for the convenience of assembling, can cut away half nut earlier in the nut groove at drill body middle part, and after being assembled on the drill body, close-fitting nut sleeve outside nut constitutes complete nut again, and the nut of the hand fastening drill clutch that also has is monolithic construction.
Because objective reality gap between nut and its axial location part, this gap can cause the decline of the clamping force of drill chuck, under the external force effect that is subjected to greater impact or frequent vibration, also is easy to generate loosening.
Some hand fastening drill clutch in the past in order to address the above problem, is provided with nut shaft to the structure that holds out against, but the structure more complicated, part is many, assembling inconvenience, and need when operation, to increase additional action, cause and use operational inconvenience.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of hand fastening drill clutch of easy to operate band reinforcement.For this reason, the utility model is by the following technical solutions: it comprises drill body, nut, the jaw that is connected with nut thread, drives the rotary sleeve that nut rotates, also be provided with the axial jacking mechanism of nut at the rear of nut, described jacking mechanism comprises that rolling element reaches the part of the band inclined plane of reinforcement that cooperates with rolling element, it also is provided with to be installed on the nut and produces the element of relative motion with synchronous the make rolling element and the part of band inclined plane of reinforcement that rotates of nut along inclined plane of reinforcement, and the inwall of rotary sleeve is provided with the structure of controlling described element and jacking mechanism mated condition.Owing to adopt technique scheme, the utility model utilization operation rotary sleeve is realized the control to jacking mechanism, makes to hold out against and remove to hold out against operation and link up with the clamping of drill chuck and the tool operation that gets loose and carry out, and simplifying the structure has made things convenient for operation.
The utility model also can adopt following further technical scheme simultaneously:
Described element comprises main body and is located at some spring leafs of the rear end of main body, and described spring leaf has and acts on jacking mechanism and make the rolling element and the part of band inclined plane of reinforcement produce the position of relative motion along inclined plane of reinforcement.Described main body is a nut sleeve.Like this, made things convenient for the control of rotary sleeve to this element, and, utilized the main body of nut sleeve dexterously as said elements, make structure simplify more and compactness, the layout of being convenient to the drill chuck internal structure is beneficial to develop high performance drill chuck.
It also has been provided with the spring leaf of locking action, drill body also is provided with in the place ahead of nut and can not rotates or can not be by the get loose sawtooth circle of direction of rotation rotation of instrument of drill chuck behind the drill chuck clamping tool relative to drill body, described spring leaf has the installation position, described installation position is clipped between described element body and the nut by described element body, spring leaf has the position that cooperates with the unidirectional tooth lock of the sawtooth of sawtooth circle, and the rotary sleeve inwall is provided with the structure of control spring sheet and sawtooth circle mated condition.Like this, the utility model also is provided with locking mechanism dexterously, under the load effect that is hit, nut can reverse rotation, guarantee the stability of jaw clamping device, simultaneously, clamp operation, reinforcement operation, locking operation are all controlled and are finished by rotary sleeve, make structure compact, more convenient to operate more.
Description of drawings
Fig. 1 partly cuts open schematic diagram for a kind of embodiment's of the utility model.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 prolongs the cutaway view of Figure 1A-A direction when being in non-locking state.
Fig. 4 prolongs the cutaway view of Figure 1B-B direction when being in non-reinforcement state.
The specific embodiment
With reference to accompanying drawing.The utility model comprises drill body 1, nut 3, the jaw 4 that is connected with nut thread, drives the rotary sleeve 2 that nut rotates, also be provided with the axial jacking mechanism of nut at the rear of nut, described jacking mechanism comprises that rolling element reaches the part of the band inclined plane of reinforcement 61 that cooperates with rolling element 71, it is installed in the make rolling element and the part of band inclined plane of reinforcement that rotate synchronously with nut on the nut in addition and produces the element 5 of relative motion along inclined plane of reinforcement, and the inwall of rotary sleeve is provided with the structure of described element of control and jacking mechanism mated condition.
Described element 5 comprises main body and is located at some spring leafs 53 of the rear end of main body, and described spring leaf has and acts on jacking mechanism and make the rolling element and the part of band inclined plane of reinforcement produce the position of relative motion along inclined plane of reinforcement.Described main body is a nut sleeve 50, it and nut interference fit, and nut is cut into two halves before installation, after being assembled on the drill body, by nut sleeve, constitute complete nut.
The part of described band inclined plane of reinforcement is the gear ring 6 that is enclosed within on the drill body, the cylindrical of gear ring is provided with the sawtooth 62 that can be promoted by described spring leaf according to the direction of rotation of drill chuck clamping tool, gear ring is provided with some deep-slotted chip breakers 63 near the end face of drill chuck afterbody, and the bottom land of deep-slotted chip breaker is described inclined plane of reinforcement 61.Rolling element is between the step 14 at gear ring 6 and drill body middle part, and its part is in the deep-slotted chip breaker 63.
Described spring leaf acts on jacking mechanism, and to make the rolling element and the part of band inclined plane of reinforcement be the end 51 of spring leaf along the position that inclined plane of reinforcement produces relative motion, this end cooperates with the sawtooth of gear ring, in order to strengthen the mating reaction power of end 51 and sawtooth, spring leaf also is being provided with outside projection 52 near the place, end, and this projection and rotary sleeve inwall are controlled the respective outer side edges of described element and jacking mechanism mated condition.As shown in Figure 4, described rotary sleeve inwall is controlled the slope 26 that the structure of described element and jacking mechanism mated condition is groove 25 and its rear end.When projection 52 is in the groove 25, end 51 is in disengaged position with gear ring 6, make projection 52 break away from grooves 25 and that slope 26 is acted on is protruding 52 the time when rotate rotary sleeve according to the direction of rotation of drill chuck clamping tool, gear ring is inserted in end 51, at this moment along with nut rotates according to the direction of rotation of drill chuck clamping tool, gear ring 6 is promoted to rotate by spring leaf 53, and rolling element and inclined plane of reinforcement produce relative displacement, and nut is axially being held out against gradually.
In addition, also can adopt the part of other structures that can play element 5 effects, this part can rotate along with nut, drives the part that the part of inclined plane of reinforcement is set or rolling element is set, make rolling element and inclined plane of reinforcement produce relative displacement, hold out against nut in the axial direction gradually.And, when this part during, begin to drive part that inclined plane of reinforcement is set or the part that rolling element is set at the basic clamping tool of jaw, can make the operation of clamping tool lighter.
The utility model also has been provided with the spring leaf 9 of locking action, drill body also is provided with in the place ahead of nut and can not rotates or can not be by the get loose sawtooth circle 13 of direction of rotation rotation of instrument of drill chuck behind the drill chuck clamping tool relative to drill body, described spring leaf has installation position 94, described installation position is clipped between described element body and the nut by described element body 50, spring leaf has the position that cooperates with the unidirectional tooth lock of the sawtooth of sawtooth circle, and the rotary sleeve inwall is provided with the structure of control spring sheet and sawtooth circle mated condition.
Unidirectional tooth lock of the present utility model cooperation can be understood as when the position that cooperates with the unidirectional tooth lock of the sawtooth of sawtooth circle falls into the sawtooth of sawtooth circle 13, if nut is according to the direction rotation of clamping tool, this position and sawtooth are in the state do not locked, but in the opposite direction, this position and sawtooth are because of withstanding the tooth lock mutually, and nut can't rotate according to rightabout.
As shown in Figure 2, the outer surface of nut is provided with the draw-in groove 32 that cooperates with installation position 94, to strengthen the bonding strength between them.Drawing reference numeral 7 is for being attached to the bearing of nut back end face, and drawing reference numeral 10 be the back cover that moves of drill body relatively.Drawing reference numeral 12 is the back-up ring to the rotary sleeve axial limiting.
Sawtooth circle 13 can adopt multiple mode to be arranged on the drill body, both can adopt the surface of sawtooth direct forming at drill body, also can adopt sawtooth circle 13 is made on the independent round element, is connected the surface of drill body then.What present embodiment adopted is former structure.
Spring leaf is an end termination of spring leaf with the position that the unidirectional tooth lock of the sawtooth of sawtooth circle cooperates, promptly the lock end 93, spring leaf is provided with outside projection 91 at this end, described rotary sleeve inwall control spring sheet is groove and the peripheral cam surface 81 thereof that cooperates with projection with the structure of sawtooth circle mated condition, spring leaf also is provided with outside positioning convex 92, and the rotary sleeve inwall is provided with the groove 82,83 that matches.
Spring leaf 9 by its positioning convex 92 under the different operating state with cooperations that be connected of groove 82,83, spring leaf 9 is connected with rotary sleeve, like this, when operating, the torsion of importing by rotary sleeve to the nut transmission.
The rotary sleeve inwall is provided with transposition groove 84, and nut is provided with the transposition key 31 that is in the transposition groove.To increase clamping force.
Rotary sleeve also comprises the interior cover 8 of being located at its inner surface, the inwall of cover in the structure that cooperates with other parts of drill chuck on the rotary sleeve inwall is located at, and these structures comprise cam surface 81, groove 82,83, the transposition groove 84 of groove and periphery thereof.Certainly, also can not establish interior cover, and these structures are molded directly within on the inwall of rotary sleeve main body.
During use, when being in non-self-locking and non-reinforcement state, the lock end 93 and the sawtooth circle 13 of spring leaf 9 are in disengaged condition, projection 92 is in the groove 82, projection 91 is in the groove 81, the projection 52 of spring leaf 53 is in the groove 25, and end 51 does not contact with gear ring 6, and rolling element is in the end of inclined plane of reinforcement near the drill chuck head.After in jaw, putting into drilling tool, from the drill chuck lower end, clockwise rotate rotary sleeve, because spring leaf 9 relatively nut rotates and passes through protruding 92 and is connected with nut with the cooperation of groove 82, torsion passes to nut successively by rotary sleeve, spring leaf 9, drive nut and rotate simultaneously, jaw is drawn in gradually clamp drilling tool.Be rotated further rotary sleeve, at this moment, nut and spring leaf 9 temporarily stop operating, after rotary sleeve turns over certain angle, the transposition key 31 of the back wall for leaning of transposition groove 84 and nut, simultaneously, the projection 91 of spring leaf 9 is rotated cover inwall cam surface 81 jack-up, lock end 93 enters in sawtooth circle 13 serrated slot, and projection 92 is in the groove 83 to keep being connected of spring leaf and rotary sleeve.Be rotated further rotary sleeve, drive nut and spring leaf 9 rotations, the lock end of spring leaf slips on the serrated slot surface, the another tooth of a tooth, and clamping force is increasing, until complete clamping tool.At this moment, unless during power cut-off, operation rotary sleeve reverse rotation is by the step opposite with the above-mentioned steps drilling tool that gets loose, because the lock end of spring leaf is withstood by sawtooth, under the situation of not handling rotary sleeve, nut can't backward rotation, thereby realizes self-locking, even make drill chuck be subjected to shock loading at work, nut can not become flexible yet, and keeps the clamping of drill chuck to drilling tool.When carrying out locking operation, by rotary sleeve rotating relative to nut, make the projection 52 of spring leaf 53 skid off groove 25 gradually, be subjected to the compressing on slope 26, the end 51 of spring leaf 53 enters in gear ring 6 serrated slot, promotes gear ring 6 and rotates, and makes rolling element 71 and gear ring 6 relative displacements, climb the gradually top of inclined plane of reinforcement of rolling element, promptly away from an end of drill chuck head, thereby axially holding out against nut, the adverse effect that the gap produced between eliminating between nut and its axial location part, increase clamping force, at this moment, because sawtooth 62 is unidirectional teeth, its backward rotation is withstood by spring leaf 53, unless when getting loose operation, the backward rotation rotary sleeve makes the end 51 of spring leaf 53 break away from sawtooth circle 6, otherwise, the sawtooth circle can't backward rotation, has therefore kept the pressure to nut.
The operation of instrument of getting loose is opposite with aforesaid operations.
Claims (9)
1, a kind of hand fastening drill clutch with reinforcement, comprise drill body, nut, the jaw that is connected with nut thread, drive the rotary sleeve that nut rotates, also be provided with the axial jacking mechanism of nut at the rear of nut, described jacking mechanism comprises that rolling element reaches the part of the band inclined plane of reinforcement that cooperates with rolling element, it is characterized in that it also is provided with is installed on the nut the make rolling element and the part of band inclined plane of reinforcement that rotate synchronously with nut and produces the element of relative motion along inclined plane of reinforcement, and the inwall of rotary sleeve is provided with the structure of described element of control and jacking mechanism mated condition.
2, a kind of hand fastening drill clutch as claimed in claim 1 with reinforcement, it is characterized in that described element comprises main body and is located at some spring leafs of the rear end of main body, described spring leaf has and acts on jacking mechanism and make the rolling element and the part of band inclined plane of reinforcement produce the position of relative motion along inclined plane of reinforcement.
3, a kind of hand fastening drill clutch with reinforcement as claimed in claim 2 is characterized in that described main body is a nut sleeve.
4, a kind of hand fastening drill clutch as claimed in claim 2 with reinforcement, the part that it is characterized in that described band inclined plane of reinforcement is the gear ring that is enclosed within on the drill body, the cylindrical of gear ring is provided with the sawtooth that can be promoted by described spring leaf according to the direction of rotation of drill chuck clamping tool, gear ring is provided with some deep-slotted chip breakers near the end face of drill chuck afterbody, and the bottom land of deep-slotted chip breaker is described inclined plane of reinforcement.
5, a kind of hand fastening drill clutch as claimed in claim 4 with reinforcement, it is characterized in that acting on jacking mechanism by described spring leaf, to make the rolling element and the part of band inclined plane of reinforcement be the end of spring leaf along the position that inclined plane of reinforcement produces relative motion, this end cooperates with the sawtooth of gear ring, spring leaf also is being provided with outside projection, the described element of control of this projection and rotary sleeve inwall and the respective outer side edges of jacking mechanism mated condition near the place, end.
6, a kind of hand fastening drill clutch as claimed in claim 3 with reinforcement, it is characterized in that it also has been provided with the spring leaf of locking action, drill body also is provided with in the place ahead of nut and can not rotates or can not be by the get loose sawtooth circle of direction of rotation rotation of instrument of drill chuck behind the drill chuck clamping tool relative to drill body, described spring leaf has the installation position, described installation position is clipped between described element body and the nut by described element body, spring leaf has the position that cooperates with the unidirectional tooth lock of the sawtooth of sawtooth circle, and the rotary sleeve inwall is provided with the structure of control spring sheet and sawtooth circle mated condition.
7, a kind of hand fastening drill clutch as claimed in claim 6 with reinforcement, it is characterized in that the position that the unidirectional tooth lock of the spring leaf and the sawtooth of sawtooth circle cooperates is an end termination of spring leaf, spring leaf is provided with outside projection at this end, described rotary sleeve inwall control spring sheet is groove and the peripheral cam face thereof that cooperates with projection with the structure of sawtooth circle mated condition, spring leaf also is provided with outside positioning convex, and the rotary sleeve inwall is provided with the groove that matches.
8, a kind of hand fastening drill clutch with reinforcement as claimed in claim 6 is characterized in that the rotary sleeve inwall is provided with the transposition groove, and nut is provided with the transposition key that is in the transposition groove.
9, a kind of hand fastening drill clutch with reinforcement as claimed in claim 1 is characterized in that rotary sleeve also comprises the interior cover of being located at its inner surface, the inwall of cover in the structure that cooperates with other parts of drill chuck on the rotary sleeve inwall is located at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101510 CN2865943Y (en) | 2006-03-08 | 2006-03-08 | Hand tightening drill chuck with boosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101510 CN2865943Y (en) | 2006-03-08 | 2006-03-08 | Hand tightening drill chuck with boosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2865943Y true CN2865943Y (en) | 2007-02-07 |
Family
ID=37701646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101510 Expired - Fee Related CN2865943Y (en) | 2006-03-08 | 2006-03-08 | Hand tightening drill chuck with boosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2865943Y (en) |
Cited By (1)
| 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 |
-
2006
- 2006-03-08 CN CN 200620101510 patent/CN2865943Y/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |