CN103212737B - Keyless drill chuck axle bed and the attachment structure of integrated guide bearing - Google Patents
Keyless drill chuck axle bed and the attachment structure of integrated guide bearing Download PDFInfo
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- CN103212737B CN103212737B CN201310136126.7A CN201310136126A CN103212737B CN 103212737 B CN103212737 B CN 103212737B CN 201310136126 A CN201310136126 A CN 201310136126A CN 103212737 B CN103212737 B CN 103212737B
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- China
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- axle bed
- leading
- thread segment
- drill chuck
- monoblock type
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Abstract
The invention belongs to field of mechanical technique, relate to keyless drill chuck, especially relate to the attachment structure of a kind of keyless drill chuck axle bed and integrated guide bearing.It solve prior art and design the technical problems such as not reasonable.This attachment structure includes integrated guide bearing and axle bed, axle bed is arranged on monoblock type and holds in the portion of leading, axle bed is provided with axle bed thread segment, monoblock type is held the portion of leading and is provided with connection thread segment, axle bed thread segment is threaded connection with being connected thread segment, axle bed is provided with the location division being positioned at above axle bed thread segment, and monoblock type is held the portion of leading and is provided with the positioning step being positioned at above connection thread segment, location division and positioning step tight fit.Advantage is: reasonable in design, simple in construction, and mechanical strength is high, good operating stability, does not haves at drill chuck course of work central axis seat and loosens and play.Additionally, axle bed has multiple use concurrently, it is easy to after dismounting and assembling, bonding strength is high, it is possible to effectively simplify the structure of keyless drill chuck, improve structural strength.
Description
Technical field
The invention belongs to field of mechanical technique, relate to keyless drill chuck, especially relate to one
Plant the attachment structure of keyless drill chuck axle bed and integrated guide bearing.
Background technology
Along with the development of social productive forces, the use of drill chuck widely, at machine
Make, electronic apparatus, construction and installation, the bench drill used in the industry such as house decoration, hand
Electric drill or lathe etc. mechanically, all can need to clamp the work such as drill bit or cutter with drill chuck
Tool is operated.Existing drill chuck generally has two types: one is that Wrench-type bores
Chuck, the clamping force of this drill chuck depends on the moment that spanner applies, and in clamping and
Need aid during loose unloading drill bit, use aid to tighten or unclamp drill chuck and pacify
Fill or dismantle drill bit or cutter, operating cumbersome, waste time and energy；Another kind is self-tightening
Formula drill chuck.The self-tightening drill chuck principle by self-tightening, turning after utilizing drill bit to install
Dynamic, tighten drill bit or cutter automatically by screw thread, when the instrument such as drill bit or cutter of clamping
It is easy to.
Conventional keyless drill chuck generally includes main body, lock-screw, jaw, ball, end
Cover, jaw seat, end cap and ball lid.Ball cover cavity has a ring-shaped step, main body
Be a cylinder, periphery have an annular shaft shoulder, main body the annular shaft shoulder with
Being dispersed with a circle ball between the ring-shaped step of ball lid, main body is loaded on by ball lid and folder
In the pilot sleeve that pawl seat is stitched together, this pilot sleeve is by end shield and ball lid
Thread connection is stitched together.Obviously, prior art construction is complicated, after having assembled easily
Loosening in occurring, have a strong impact on keyless drill chuck and normally work.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that a kind of reasonable in design, structure letter
Single, mechanical strength is high, the keyless drill chuck axle bed of good operating stability and integral type guidance
The attachment structure of seat.
For reaching above-mentioned purpose, present invention employs following technical proposal: this self-tightening drill point
Head axle bed and the attachment structure of integrated guide bearing, it is characterised in that this attachment structure bag
Include tubular integrated guide bearing and tubular axle bed, described integrated guide bearing
Top be that cylindrical circular monoblock type holds the portion of leading, bottom is that the jaw in taper barrel is led
Rail portion, described monoblock type holds the portion of leading and jaw rail portion is integral type structure, described
Axle bed is arranged on monoblock type and holds in the portion of leading, and is provided with axle bed thread segment, in entirety on axle bed
Formula is held the portion of leading and is provided with connection thread segment, and described axle bed thread segment leads to being connected thread segment
Crossing threaded, described axle bed is provided with the location division being positioned at above axle bed thread segment,
Described monoblock type is held the portion of leading and is provided with the positioning step being positioned at above connection thread segment, institute
The location division stated and described positioning step tight fit.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
The upper surface of the axle bed stated is held the upper surface in the portion of leading and is flushed with monoblock type.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
It is provided with cylindrical main body in the integrated guide bearing stated, the periphery of main body sets
Having the annular shaft shoulder, described monoblock type is provided with ring-shaped step, described annular in holding the portion of leading
The shaft shoulder is arranged on ring-shaped step, is formed and push away between described axle bed lower end and the annular shaft shoulder
Power rolling bearing, described axle bed radially inner side forms radial plain bearing.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
It is provided with some balls between lower surface and the upper ring surface of the annular shaft shoulder of the axle bed stated, and
Ball respectively with the lower surface of axle bed and annular the shaft shoulder upper ring surface directly contact.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
The bearing shell that axle bed radially inner side is radial plain bearing stated；Described axle bed lower end is for pushing away
The seat ring of power rolling bearing, described annular shaft shoulder top is the blowout patche of thrust bearing.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
The lower surface of the axle bed stated has annular cambered raceway, and described ball is located at annular cambered
In raceway.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
The main body upper end stated is cased with elastic cover, and described elastic cover is provided with at least two pin,
The upper surface of described axle bed is provided with at least two fabrication hole, described pin and fabrication hole
One_to_one corresponding is arranged.
In the above-mentioned keyless drill chuck axle bed attachment structure with integrated guide bearing, institute
Fabrication hole and the pin stated are uniformly distributed at circumferencial direction respectively.
Compared with prior art, this keyless drill chuck axle bed and the company of integrated guide bearing
The advantage of access node structure is: reasonable in design, simple in construction, and mechanical strength is high, and work is steady
Qualitative good, do not have at drill chuck course of work central axis seat and loosen and play.Additionally,
Axle bed has multiple use concurrently, it is easy to after dismounting and assembling, bonding strength is high, it is possible to effectively letter
Change the structure of keyless drill chuck, improve the structural strength of keyless drill chuck.
Accompanying drawing explanation
Fig. 1 is that the present invention that the present invention provides partly cuts open structure when being applied to keyless drill chuck
Schematic diagram.
Fig. 2 be the present invention provide partly cut open structural representation.
In figure, integrated guide bearing 1, monoblock type hold the portion of leading 11, connect thread segment 11a,
Positioning step 11b, jaw rail portion 12, ring-shaped step 13, axle bed 2, axle bed screw thread
Section 21, location division 22, fabrication hole 23, annular cambered raceway 24, main body 3, annular
The shaft shoulder 31, lock-screw 4, jaw 5, end shield 6, ball 7, elastic cover 8, pin
81, thrust bearing 9, radial plain bearing 10.
Detailed description of the invention
As it is shown in figure 1, this double main supporting type self-fastening drill chunk includes main body 3, locking
Screw 4, jaw 5, integrated guide bearing 1, end shield 6, axle bed 2, ball 7, degree of tightness
Overlap 8 parts such as grade.Main body 3 is cylindrical, has been threaded connection in main body 3 lower end
Lock-screw 4, in lock-screw 4 lower end equipped with axial relative to lock-screw 4, all
To location and radially movable three jaws 5.Main body 3 is located at tubular integral type
In guidance seat 1
As in figure 2 it is shown, this keyless drill chuck axle bed and the attachment structure of integrated guide bearing
Including tubular integrated guide bearing 1 and tubular axle bed 2, described integral type
The top of guidance seat 1 is that cylindrical circular monoblock type holds the portion of leading 11, and bottom is in taper cone barrel
The jaw rail portion 12 of shape, described monoblock type holds the portion of leading 11 and jaw rail portion 12 is
Integral structure, described axle bed 2 is arranged on monoblock type and holds in the portion of leading 11, at axle bed 2
It is provided with axle bed thread segment 21, holds in monoblock type and in the portion of leading 11, be provided with connection thread segment 11a,
Described axle bed thread segment 21 is threaded connection with being connected thread segment 11a, described axle
Seat 2 is provided with the location division 22 being positioned at above axle bed thread segment 21, holds in monoblock type and leads
Portion 11 is provided with and is positioned at the positioning step 11b connected above thread segment 11a, and described determines
Position portion 22 and described positioning step 11b tight fit.
Cylindrical main body 3 it is provided with, at the cylindrical of main body 3 in integrated guide bearing 1
Face is provided with the annular shaft shoulder 31, and described monoblock type is provided with ring-shaped step in holding the portion of leading 11
13, the described annular shaft shoulder 31 is arranged on ring-shaped step 13, described axle bed 2 times
Forming thrust bearing 9 between end and the annular shaft shoulder 31, described axle bed 2 footpath is inside
Side forms radial plain bearing 10.
It is provided with some balls between lower surface and the upper ring surface of the annular shaft shoulder 31 of axle bed 2
7, and ball 7 is straight with the upper ring surface of the lower surface of axle bed 2 and the annular shaft shoulder 31 respectively
Contact.Axle bed 2 radially inner side is the bearing shell of radial plain bearing 10；Axle bed 2 lower end
For the seat ring of thrust bearing 9, the described annular shaft shoulder 31 top is the thrust axis of rolling
Hold the blowout patche of 9.More specifically, the lower surface of axle bed 2 has annular cambered raceway 24,
Ball 7 is located in annular cambered raceway 24.
Main body 3 upper end is cased with elastic cover 8, and elastic cover 8 and main body 3 circumferentially positioned,
Elastic cover 8 is provided with at least two pin 81, and the upper surface of axle bed 2 is provided with at least two
Fabrication hole 23, pin 81 is arranged with fabrication hole 23 one_to_one corresponding.Fabrication hole 23 and pin
Post 81 is uniformly distributed at circumferencial direction respectively.The upper surface of axle bed 2 and monoblock type hold the portion of leading
The upper surface of 11 flushes.
Specific embodiment described herein is only to present invention spirit theory for example
Bright.Those skilled in the art can be to described specific embodiment
Make various amendment or supplement or use similar mode to substitute, but without departing from
The spirit of the present invention or surmount scope defined in appended claims.
Although the most more employ integrated guide bearing 1, monoblock type holds the portion of leading 11,
Connect thread segment 11a, positioning step 11b, jaw rail portion 12, ring-shaped step 13,
Axle bed 2, axle bed thread segment 21, location division 22, fabrication hole 23, annular cambered raceway
24, main body 3, annular the shaft shoulder 31, lock-screw 4, jaw 5, end shield 6, ball 7,
The terms such as elastic cover 8, pin 81, thrust bearing 9, radial plain bearing 10,
But it is not precluded from using the possibility of other term.These terms are used to be only used to more
Describe and explain the essence of the present invention easily；It is construed as what any one was added
It is all contrary with spirit of the present invention for limiting.
Claims (2)
1. keyless drill chuck axle bed and an attachment structure for integrated guide bearing, its feature
Being, this attachment structure includes tubular integrated guide bearing (1) and tubular axle
Seat (2), the top of described integrated guide bearing (1) is that cylindrical circular monoblock type is held
Leading portion (11), bottom is the jaw rail portion (12) in taper barrel, described entirety
Formula holds the portion of leading (11) and jaw rail portion (12) is integral type structure, described axle bed
(2) it is arranged on monoblock type and holds in the portion of leading (11), axle bed (2) is provided with axle bed spiral shell
Line section (21), holds in monoblock type and is provided with connection thread segment (11a), institute in the portion of leading (11)
The axle bed thread segment (21) stated is threaded connection with being connected thread segment (11a), described
Axle bed (2) be provided be positioned at axle bed thread segment (21) top location division (22),
Hold to be provided with in the portion of leading (11) in monoblock type and be positioned at the location connected above thread segment (11a)
Step (11b), described location division (22) and described positioning step (11b) close-fitting
Close；The upper surface of described axle bed (2) is neat with the upper surface that monoblock type holds the portion of leading (11)
Flat；It is provided with cylindrical main body (3) in described integrated guide bearing (1), is leading
The periphery of body (3) is provided with the annular shaft shoulder (31), and described monoblock type holds the portion of leading (11)
Inside being provided with ring-shaped step (13), the described annular shaft shoulder (31) is arranged on ring-shaped step (13)
On, form the thrust axis of rolling between described axle bed (2) lower end and the annular shaft shoulder (31)
Holding (9), described axle bed (2) radially inner side forms radial plain bearing (10)；Institute
The lower surface of the axle bed (2) stated and the annular shaft shoulder (31) if upper ring surface between be provided with
Dry milling pearl (7), and ball (7) respectively with the lower surface of axle bed (2) and the annular shaft shoulder
(31) upper ring surface directly contacts；Described axle bed (2) radially inner side is centripetal cunning
The bearing shell of dynamic bearing (10)；Described axle bed (2) lower end is thrust bearing (9)
Seat ring, the described blowout patche that the annular shaft shoulder (31) top is thrust bearing (9)；
The lower surface of described axle bed (2) has annular cambered raceway (24), described ball
(7) it is located in annular cambered raceway (24)；Described main body (3) upper end is cased with pine
Tight set (8), described elastic cover (8) is provided with at least two pin (81), described
The upper surface of axle bed (2) be provided with at least two fabrication hole (23), described pin (81)
Arrange with fabrication hole (23) one_to_one corresponding.
Keyless drill chuck axle bed the most according to claim 1 and integrated guide bearing
Attachment structure, it is characterised in that described fabrication hole (23) and pin (81) are respectively
It is uniformly distributed at circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136126.7A CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136126.7A CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103212737A CN103212737A (en) | 2013-07-24 |
| CN103212737B true CN103212737B (en) | 2016-08-31 |
Family
ID=48811072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310136126.7A Active CN103212737B (en) | 2013-04-18 | 2013-04-18 | Keyless drill chuck axle bed and the attachment structure of integrated guide bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103212737B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212736B (en) * | 2013-04-18 | 2016-07-13 | 玉环胜友工具有限公司 | Composite bearing for keyless drill chuck |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113754A (en) * | 1997-06-19 | 1999-01-22 | Okuma Mach Works Ltd | Bearing device |
| CN2683288Y (en) * | 2004-03-19 | 2005-03-09 | 游友民 | Self fastened drill chuck with improved structure |
| CN2709061Y (en) * | 2004-03-09 | 2005-07-13 | 三鸥集团有限公司 | Hard alloy drill chuck gripping jaw |
| CN2832375Y (en) * | 2005-09-27 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Locking self-screwed drill chuck |
| WO2008009170A1 (en) * | 2006-07-11 | 2008-01-24 | Zhenqian Hu | Hand fastening drill chuck and bearing collar self-locking mechanism for the same |
| CN203265717U (en) * | 2013-04-18 | 2013-11-06 | 玉环胜友工具有限公司 | Connecting structure for shaft seat and integrated guide bearing seat of self-fastening drill chuck |
-
2013
- 2013-04-18 CN CN201310136126.7A patent/CN103212737B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113754A (en) * | 1997-06-19 | 1999-01-22 | Okuma Mach Works Ltd | Bearing device |
| CN2709061Y (en) * | 2004-03-09 | 2005-07-13 | 三鸥集团有限公司 | Hard alloy drill chuck gripping jaw |
| CN2683288Y (en) * | 2004-03-19 | 2005-03-09 | 游友民 | Self fastened drill chuck with improved structure |
| CN2832375Y (en) * | 2005-09-27 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Locking self-screwed drill chuck |
| WO2008009170A1 (en) * | 2006-07-11 | 2008-01-24 | Zhenqian Hu | Hand fastening drill chuck and bearing collar self-locking mechanism for the same |
| CN203265717U (en) * | 2013-04-18 | 2013-11-06 | 玉环胜友工具有限公司 | Connecting structure for shaft seat and integrated guide bearing seat of self-fastening drill chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103212737A (en) | 2013-07-24 |
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