CN103612132A - Low-rpm drilling fixture with safety protection function - Google Patents
Low-rpm drilling fixture with safety protection function Download PDFInfo
- Publication number
- CN103612132A CN103612132A CN201310640695.5A CN201310640695A CN103612132A CN 103612132 A CN103612132 A CN 103612132A CN 201310640695 A CN201310640695 A CN 201310640695A CN 103612132 A CN103612132 A CN 103612132A
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- China
- Prior art keywords
- steel ball
- externality shaft
- friction plate
- shaft sleeve
- revolution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a low-rpm drilling fixture with a safety protection function. The low-rpm drilling fixture with the safety protection function comprises an outer tooth shaft sleeve and an inner tooth shaft sleeve. The outer circumferential surface of the front end of the inner tooth shaft sleeve is connected with an adjusting nut. The front end of the outer tooth shaft sleeve is provided with a chuck. Outer teeth are arranged on the outer circumference of the rear end of the outer tooth shaft sleeve. The outer tooth shaft sleeve is sleeved with inner tooth friction plates. Inner teeth are arranged in the inner tooth shaft sleeve and are sleeved with outer tooth friction plates. The outer tooth friction plates and the inner tooth friction plates are located between a limiting end face of the outer tooth shaft sleeve and a limiting end face of the inner tooth shaft sleeve. When the outer tooth shaft sleeve and the inner tooth shaft sleeve squeeze each other, the outer tooth friction plates and the inner tooth friction plates are axially pressed tightly on the two limiting end faces. Through the structure, the inner tooth shaft sleeve is driven to press tightly or loosen the friction plates through the adjusting nut so that the friction moment between the outer tooth shaft sleeve and the inner tooth shaft sleeve can be increased or decreased, and the low-rpm drilling fixture can play roles in transmitting moment and carrying out overload safety protection. Consequently, current surges are completely avoided, and the phenomenon that a motor or a drill bit is damaged is prevented completely.
Description
Technical field
The present invention relates to a kind of drilling tool fixture, specifically a kind of slow-speed of revolution safeguard protection boring grab.
Background technology
In prior art, the fixture one end on drilling tool is connected with power output shaft, and the other end is for the boring drill bit of clamping, the fixture that drilling tool is used is traditionally all generally monolithic construction, during use, drilling tool is clamped drill bit, rotation punching under the drive of power output shaft, this monolithic construction of tradition, when fitchering or while running into larger resistance, can make electric current increase suddenly, may damage motor on the one hand thus, also may make fitchering workpiece on the other hand, damage drill bit.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly can avoid electric current to uprush completely, damages the slow-speed of revolution safeguard protection boring grab of motor or drill bit.
In order to solve the problems of the technologies described above, slow-speed of revolution safeguard protection boring grab of the present invention, comprises externality shaft and the internal tooth axle sleeve that is enclosed within externality shaft back end circumference outer surface; On internal tooth axle sleeve fore end outer circumference surface, be connected with an adjusting nut, the front end sleeve of adjusting nut is at the mid portion of externality shaft; The setting of externality shaft front end is used for the chuck being connected with drill bit, in externality shaft back end outer circumference, is provided with external tooth, and on externality shaft, cover has a plurality of and the intermeshing internal toothed friction plate of external tooth; In internal tooth axle sleeve, be provided with internal tooth, on internal tooth, cover has a plurality of and intermeshing external tooth friction plate of internal tooth; The interlaced in the axial direction setting of internal toothed friction plate and external tooth friction plate also makes both sides bonded to each other, and both have overlapping part mutually diametrically simultaneously; External tooth friction plate and internal toothed friction plate between two spacing end faces of externality shaft and internal tooth axle sleeve, when externality shaft and internal tooth axle sleeve push mutually, external tooth friction plate and internal toothed friction plate by axial compression on two spacing end faces.
Between the external peripheral surface of the inner circumferential surface of described adjusting nut front end and externality shaft mid portion, be provided with clamping sleeve, between described adjusting nut inner circumferential surface and the external peripheral surface of clamping sleeve, be provided with for settling the steel ball of steel ball to settle position, steel ball is settled in position and is mounted with outer steel ball.
The front end of described outer steel ball is spacing by the spacing preiection of clamping sleeve and adjusting nut front end, the outer retainer ring spacing on the compacted cover excircle in rear end of outer steel ball.
The stage casing of described externality shaft is provided with limited step, and clamping sleeve rear end face is pressed on the front end face of externality shaft upper limit step, and the rear end face of limited step is formed for the spacing end face of spacing external tooth friction plate and internal toothed friction plate.
Between described clamping sleeve and externality shaft, be provided with inner groove, in inner groove, be provided with interior steel ball.
The front end circumferential outer surface cover of described externality shaft has location steel ball cover, is provided with the locking ball of the steel ball placing chamber being positioned on externality shaft between location steel ball cover and externality shaft, and the rear end of location steel ball cover is provided with Compress Spring.
On described externality shaft, be provided with the inner shield ring that is positioned at steel ball front end, the rear end face of Compress Spring is pressed on inner shield ring.
The rear end of described externality shaft is provided with circlip for shaft, and the front end of described internal tooth axle sleeve is provided with circlip for hole.
On described externality shaft, be provided with the front back-up ring for spacing location steel ball cover.
Adopt after above-mentioned structure, due to the adjusting nut arranging, with the intermeshing internal toothed friction plate of external tooth; With the intermeshing external tooth friction plate of internal tooth; When externality shaft and internal tooth axle sleeve push mutually; external tooth friction plate and internal toothed friction plate by axial compression on two spacing end faces; pass through thus adjusting nut; drive internal tooth axle sleeve to compress or unclamp friction plate, thereby increase or reduce the moment of friction between externality shaft and internal tooth axle sleeve, can play the effect of carry-over moment and Overload Protection; avoided electric current to uprush completely; the situation of damaging motor or drill bit occurs, and its structure arranges rationally, is conducive to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of slow-speed of revolution safeguard protection boring grab of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, slow-speed of revolution safeguard protection boring grab of the present invention is described in further detail.
As shown in the figure, slow-speed of revolution safeguard protection boring grab of the present invention, comprises externality shaft 1 and the internal tooth axle sleeve 9 that is enclosed within externality shaft back end circumference outer surface; The rear end of externality shaft 1 is provided with circlip for shaft 14, the front end of internal tooth axle sleeve 9 is provided with circlip for hole 15, the front end circumferential outer surface cover of externality shaft 1 has location steel ball cover 12, is provided with the front back-up ring 16 for spacing location steel ball cover 12 on externality shaft 1; Between location steel ball cover 12 and externality shaft 1, be provided with the locking ball 13 of the steel ball placing chamber being positioned on externality shaft 1, the rear end of location steel ball cover 12 is provided with Compress Spring 11;
Internal tooth axle sleeve is connected with an adjusting nut 3 on 6 fore end outer circumference surfaces, and the rear end of adjusting nut is connected by screw thread and internal tooth axle sleeve circumference external screw thread, and the front end sleeve of adjusting nut 3 is at the mid portion of externality shaft 1; Externality shaft 1 front end setting is used for the chuck being connected with drill bit, in externality shaft 1 back end outer circumference, is provided with external tooth, and on externality shaft 1, cover has a plurality of and the intermeshing internal toothed friction plate 6 of external tooth; In internal tooth axle sleeve 9, be provided with internal tooth, on internal tooth, cover has a plurality of and intermeshing external tooth friction plate 7 of internal tooth; The interlaced in the axial direction setting of internal toothed friction plate 6 and external tooth friction plate 7 and make internal toothed friction plate 6 and external tooth friction plate 7 sides bonded to each other, simultaneously internal toothed friction plate 6 and external tooth friction plate 7 have overlapping part mutually diametrically; External tooth friction plate 7 and internal toothed friction plate 6 are between two spacing end faces of externality shaft 1 and internal tooth axle sleeve 9, when externality shaft 1 and the 9 mutual extruding of internal tooth axle sleeve, external tooth friction plate 7 and internal toothed friction plate 6 by axial compression on two spacing end faces, when the moment of needs transmission is large, just screw adjusting nut, now internal toothed friction plate 6 and external tooth friction plate 7 depart from separately, when the moment hour of needs transmission just unscrews adjusting nut, thus by regulating thrust, change limit of friction value, prevented that overload phenomenon from occurring.
Wherein, between the external peripheral surface of the inner circumferential surface of adjusting nut 3 front ends and externality shaft 1 mid portion, be provided with clamping sleeve 4, between adjusting nut 3 inner circumferential surfaces and the external peripheral surface of clamping sleeve 4, be provided with for settling the steel ball of steel ball to settle position, steel ball is settled in position and is mounted with outer steel ball 5, the front end of outer steel ball 5 is spacing by the spacing preiection of clamping sleeve 4 and adjusting nut 3 front ends, and the outer back-up ring 8 on compacted cover 4 excircles in rear end of outer steel ball 5 is spacing.
Further can be provided with limited step in the stage casing of externality shaft 1, clamping sleeve 4 rear end faces are pressed on the front end face of externality shaft 1 upper limit step, and the rear end face of limited step is formed for the spacing end face of spacing external tooth friction plate 7 and internal toothed friction plate 6.
Further can also between clamping sleeve 4 and externality shaft 1, be provided with inner groove, be provided with interior steel ball 2 in inner groove, the effect of interior steel ball allows clamping sleeve when moving axially, and does not produce excessive friction, guarantees its smooth and easy moving forward; On externality shaft 1, be provided with the inner shield ring 10 that is positioned at steel ball 2 front ends, the rear end face of Compress Spring 11 is pressed on inner shield ring 10.
Claims (9)
1. a slow-speed of revolution safeguard protection boring grab, comprises externality shaft (1) and is enclosed within the internal tooth axle sleeve (9) of externality shaft back end circumference outer surface; It is characterized in that: described internal tooth axle sleeve (6) is connected with an adjusting nut (3) on fore end outer circumference surface, and the front end sleeve of adjusting nut (3) is at the mid portion of externality shaft (1); Described externality shaft (1) front end setting is used for the chuck being connected with drill bit, in externality shaft (1) back end outer circumference, is provided with external tooth, and the upper cover of externality shaft (1) has a plurality of and the intermeshing internal toothed friction plate of external tooth (6); In described internal tooth axle sleeve (9), be provided with internal tooth, on internal tooth, cover has a plurality of and intermeshing external tooth friction plate of internal tooth (7); Described internal toothed friction plate (6) and the interlaced in the axial direction setting of external tooth friction plate (7) also make both sides bonded to each other, and both have overlapping part mutually diametrically simultaneously; Described external tooth friction plate (7) and internal toothed friction plate (6) are positioned between externality shaft (1) and two spacing end faces of internal tooth axle sleeve (9), when externality shaft (1) and internal tooth axle sleeve (9) push mutually, external tooth friction plate (7) and internal toothed friction plate (6) by axial compression on two spacing end faces.
2. according to slow-speed of revolution safeguard protection boring grab claimed in claim 1; it is characterized in that: between the inner circumferential surface of described adjusting nut (3) front end and the external peripheral surface of externality shaft (1) mid portion, be provided with clamping sleeve (4); between the external peripheral surface of described adjusting nut (3) inner circumferential surface and clamping sleeve (4), be provided with for settling the steel ball of steel ball to settle position, steel ball is settled in position and is mounted with outer steel ball (5).
3. according to slow-speed of revolution safeguard protection boring grab claimed in claim 2; it is characterized in that: the front end of described outer steel ball (5) is spacing by the spacing preiection of clamping sleeve (4) and adjusting nut (3) front end, the outer back-up ring (8) on the compacted cover in rear end (4) excircle of outer steel ball (5) is spacing.
4. according to slow-speed of revolution safeguard protection boring grab claimed in claim 3; it is characterized in that: the stage casing of described externality shaft (1) is provided with limited step; clamping sleeve (4) rear end face is pressed on the front end face of externality shaft (1) upper limit step, and the rear end face of limited step is formed for the spacing end face of spacing external tooth friction plate (7) and internal toothed friction plate (6).
5. according to slow-speed of revolution safeguard protection boring grab claimed in claim 4, it is characterized in that: between described clamping sleeve (4) and externality shaft (1), be provided with inner groove, in inner groove, be provided with interior steel ball (2).
6. according to slow-speed of revolution safeguard protection boring grab claimed in claim 1; it is characterized in that: the front end circumferential outer surface cover of described externality shaft (1) has location steel ball cover (12); between location steel ball cover (12) and externality shaft (1), be provided with the locking ball (13) that is positioned at the steel ball placing chamber on externality shaft (1), the rear end of location steel ball cover (12) is provided with Compress Spring (11).
7. according to slow-speed of revolution safeguard protection boring grab claimed in claim 6, it is characterized in that: on described externality shaft (1), be provided with the inner shield ring (10) that is positioned at steel ball (2) front end, the rear end face of Compress Spring (11) is pressed on inner shield ring (10).
8. according to slow-speed of revolution safeguard protection boring grab claimed in claim 1, it is characterized in that: the rear end of described externality shaft (1) is provided with circlip for shaft (14), the front end of described internal tooth axle sleeve (9) is provided with circlip for hole (15).
9. according to slow-speed of revolution safeguard protection boring grab claimed in claim 1, it is characterized in that: on described externality shaft (1), be provided with the front back-up ring (16) for spacing location steel ball cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640695.5A CN103612132B (en) | 2013-12-04 | 2013-12-04 | Slow-speed of revolution safeguard protection boring grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310640695.5A CN103612132B (en) | 2013-12-04 | 2013-12-04 | Slow-speed of revolution safeguard protection boring grab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103612132A true CN103612132A (en) | 2014-03-05 |
| CN103612132B CN103612132B (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310640695.5A Active CN103612132B (en) | 2013-12-04 | 2013-12-04 | Slow-speed of revolution safeguard protection boring grab |
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| CN (1) | CN103612132B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827341A (en) * | 2015-05-19 | 2015-08-12 | 深圳比特力机械有限公司 | Compressive overload protection device |
| CN107442797A (en) * | 2017-03-17 | 2017-12-08 | 广州元凛建筑工程技术开发有限公司 | A kind of drilling machine |
| CN110518739A (en) * | 2019-09-24 | 2019-11-29 | 礼宏伟 | A kind of motor transmission shaft and the magneto with it |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651442A (en) * | 1994-08-24 | 1997-07-29 | Exedy Corporation | Clutch disc subassembly, manufacturing method and jig for assembling the subassembly |
| CN2470605Y (en) * | 2001-03-09 | 2002-01-09 | 山东博山减速机厂 | Pneumatic friction clutch |
| US20020152602A1 (en) * | 2001-04-23 | 2002-10-24 | Relan Krishna K. | Method of loading a clutch pack into a clutch drum |
| WO2006113675A2 (en) * | 2005-04-18 | 2006-10-26 | Specialized Health Products, Inc. | Methods of manufacturing safety shields for medical needles and related manufacturing devices |
| CN1888370A (en) * | 2006-07-20 | 2007-01-03 | 杨福友 | Concrete drilling hole machine with friction sheet |
| CN202752663U (en) * | 2012-03-09 | 2013-02-27 | 叶明聪 | Friction clutch of bench drill feeding mechanism |
| CN202804674U (en) * | 2012-07-12 | 2013-03-20 | 安徽青阳县雄伟泵阀制造有限公司 | Rotary multi-hole drilling fixture |
| CN103291774A (en) * | 2013-04-10 | 2013-09-11 | 中煤张家口煤矿机械有限责任公司 | Torque-adjustable overload protection device |
| CN203599881U (en) * | 2013-12-04 | 2014-05-21 | 镇江索达联轴器有限公司 | Low-rotation-speed safety and protective drilling clamp |
-
2013
- 2013-12-04 CN CN201310640695.5A patent/CN103612132B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651442A (en) * | 1994-08-24 | 1997-07-29 | Exedy Corporation | Clutch disc subassembly, manufacturing method and jig for assembling the subassembly |
| CN2470605Y (en) * | 2001-03-09 | 2002-01-09 | 山东博山减速机厂 | Pneumatic friction clutch |
| US20020152602A1 (en) * | 2001-04-23 | 2002-10-24 | Relan Krishna K. | Method of loading a clutch pack into a clutch drum |
| WO2006113675A2 (en) * | 2005-04-18 | 2006-10-26 | Specialized Health Products, Inc. | Methods of manufacturing safety shields for medical needles and related manufacturing devices |
| CN1888370A (en) * | 2006-07-20 | 2007-01-03 | 杨福友 | Concrete drilling hole machine with friction sheet |
| CN202752663U (en) * | 2012-03-09 | 2013-02-27 | 叶明聪 | Friction clutch of bench drill feeding mechanism |
| CN202804674U (en) * | 2012-07-12 | 2013-03-20 | 安徽青阳县雄伟泵阀制造有限公司 | Rotary multi-hole drilling fixture |
| CN103291774A (en) * | 2013-04-10 | 2013-09-11 | 中煤张家口煤矿机械有限责任公司 | Torque-adjustable overload protection device |
| CN203599881U (en) * | 2013-12-04 | 2014-05-21 | 镇江索达联轴器有限公司 | Low-rotation-speed safety and protective drilling clamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827341A (en) * | 2015-05-19 | 2015-08-12 | 深圳比特力机械有限公司 | Compressive overload protection device |
| CN107442797A (en) * | 2017-03-17 | 2017-12-08 | 广州元凛建筑工程技术开发有限公司 | A kind of drilling machine |
| CN110518739A (en) * | 2019-09-24 | 2019-11-29 | 礼宏伟 | A kind of motor transmission shaft and the magneto with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103612132B (en) | 2016-11-09 |
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Effective date of registration: 20220610 Address after: 212000 Building 1, No. 616, Yicheng Avenue, Xincheng, Dantu District, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu soda Heavy Industry Co.,Ltd. Address before: No. 52, Zhenrong Road, Dantu New District, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG SUODA COUPLING Co.,Ltd. |
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