CN1287231A - Clutch for drilling tool - Google Patents
Clutch for drilling tool Download PDFInfo
- Publication number
- CN1287231A CN1287231A CN 00118753 CN00118753A CN1287231A CN 1287231 A CN1287231 A CN 1287231A CN 00118753 CN00118753 CN 00118753 CN 00118753 A CN00118753 A CN 00118753A CN 1287231 A CN1287231 A CN 1287231A
- Authority
- CN
- China
- Prior art keywords
- actuator
- lever
- locking
- notch
- clutch
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
- F16D7/10—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
Abstract
The overload coupling for a drill has a drive section (4) partially surrounded by a drive take-off section (5), with at least one ratchet locking pocket (7) at its inner contour towards the drive section (4), to take a sprung locking unit (10). The sprung locking unit (10) is a lever, working with a spring (13), within an opening in the drive section (4) opening towards its inner contour. The free end (17) of the locking lever has a locking section (12) which works with the locking pocket (7), and a locking surface (15) which acts with a counter surface (16) at the locking pocket (7). The structure prevents the locking section (12) of the lever from digging into the counter surface of the locking pocket (7).
Description
The present invention relates to a overload clutch by claim 1 general introduction
The overload clutch of the torque that the actuator that transmits two coaxial mounted transmission paries and drive element limit when being subjected to cumulative load has been described by DE1965275C3.This overload clutch has a plurality of uniform, with the spring-loading spherical locking body of drive element notch engagement.When surpassing the qualification torque, ball is by extruding in the drive element notch, so drive element can circumferentially relatively rotate around actuator.Increase with overload clutch service time is deeper inserted in the respective face of notch with the ball that the corresponding millet cake of notch contacts.Therefore it is just bigger effectively to throw off the angle, and ball is deviate from required torque from notch also need big more.
The present invention seeks to, make one and make simply, use reliably, and can stop locking element to insert the overload clutch of notch, so can obtain being applicable to the disengagement torque that remains unchanged of closed tolerance of the whole service time of overload clutch.
This purpose can be achieved by an overload clutch that has the described feature of claim 1.
Form the lever of a locking element, its advantage is, but because its swing structure on actuator forms a guiding device generally, and always be pressed in the notch with aiming at.
In order to obtain the overload clutch of a minimum compact mechanism, lever should be swung around the axis that the central longitudinal axis that is parallel to actuator is extended.These axles that penetrate actuator for example are being provided with around the actuator.Carry out in the lever one free end bearing hole that matches with diameter axle that have by one the location of swinging of these levers on axle.
The overload clutch of a minor structure size can so realize, promptly by preferably make lever be installed in actuator annular and in the recess of its external frame opening.This recess for example have one be parallel in the middle of the width that extends of the longitudinal axis, its basically corresponding to lever at the equidirectional thickness that records.Lever has high lateral stability like this.
For reliably lever being pressed in the notch, lever preferably has one and the cooperative free end of elastic element.
Elastic element preferably be contained on the actuator and radially with the stop surface co-operation of lever, can make the gross weight of lever as much as possible little.
Preferably, a locking zone that has braking surface is arranged at the opposite side of the stop surface of lever, braking surface can with the respective face co-operation on the notch.By locking district and notch to the structure on small part plane the power that acts on the lever that is produced by elastic element is delivered on the notch, can damage the respective face of notch simultaneously owing to the respective face that the locking district enters notch.Braking surface for example is designed to greater than this respective face.
In order to guarantee that the locking district inserts in the notch safely after trigger process, the locking district is in the extension of the extension that makes progress in actuator week less than notch.
Install with one heart in order to accomplish that the relative drive element of actuator is accurate, should on actuator, be arranged to rare three at the uniform lever of actuator periphery, and have three notches of uniform setting on the profile within it on the drive element at least.
For the rotation that motor is produced is delivered on the actuator, this actuator preferably for example has with one that the drive shaft turns of tooth profile links to each other.The tooth profile of driving shaft for example be one with one for example with the affixed gear engagement of shaft of motor and the gear of mating reaction.
The drive element periphery should have a tooth profile, and the rotation of being come out by driven member can be delivered on other part thus.
The present invention describes in detail in conjunction with the embodiment who is provided by accompanying drawing, diagram:
Cut-away view of Fig. 1 by overload clutch of the present invention; Fig. 2 is by the II-II section of overload clutch shown in Figure 1.
Fig. 1 and 2 discloses an overload clutch, have a circular drives part 4 and one have match with actuator 4 external diameters basically and the internal diameter of local envelopment actuator 4 and with actuator 4 coaxial mounted ring drive elements 5.Drive element 5 relatively actuator 4 in circumferential offset.There is a hole in actuator 4 central authorities, indulge and are wearing a driving shaft 1 that has tooth profile 2 at the one free end.Between tooth profile 2 and actuator 4, there is its flange of usefulness that drive element 5 is fixed on axle sleeve 3 on the actuator 4.Drive element 5 can freely rotate with respect to axle sleeve 3.
Friction is connected non-rotatably continuous mutually driving shaft 1 with actuator 4 usefulness.Actuator 4 has a degree of depth T and for example is 0.2 to 0.7 times annular notch 14 of actuator 4 external diameters.Actuator 4 has six circumferential uniform receiving openings 8 and is used for elastic elements 13 in the bottom of recess 14.The actuator outer regions has six and passes recess 14 and at the circumferential uniform axle 9 of actuator 4, longitudinal axis is parallel to the central longitudinal axis of actuator 4 in the middle of it.Axle 9 is used to receive basically the locking body 10 of the lever form of extending along actuator 4 circumferential zones.
Each so has an internal diameter and a bearing hole of 9 external diameters coupling on the lever.Lever is being installed on the axle 9 in the plane perpendicular to the actuator 4 middle longitudinal axis swingably with this bearing hole.Each lever like this its free end process one in a plane that is parallel to the longitudinal axis in the middle of the actuator 4, extend and by the swing position of lever basically towards the stop surface 11 of actuator 4 center oriented.Elastic element 13 withstands on this stop surface 11.Lever has a locking zone 12 at the opposition side of stop surface 11, and when locking zone 12, lever and notch 7 during with driven part 5 overlap joints, locking region shape coupling ground enters in the driven part 5 on the profiles accordingly in the notch.The degree of depth T of notch 7 is being reduced on than opposite direction on the direction of installation shaft 9 more lentamente by the lever free end.The external frame of driven part 5 has tooth profile 6.
Claims (8)
1. have an actuator (4) and to small part around actuator (4) and with the overload clutch of the drive element (5) of its concentric installation, drive element (5) is having a notch (7) at least facing on the interior profile of actuator (4), in this notch, put in an elasticity locking element (10) respectively, it can be deviate from from notch (7) when overstepping the extreme limit torque, it is characterized in that locking element (10) is made of a single-arm lever that supports swingably on actuator (4).
2. by the described clutch of claim 1, it is characterized in that described lever can be around axle (a 9) swing parallel with actuator (4) central longitudinal axis.
3. by claim 1 or 2 described clutches, it is characterized in that, described lever be arranged on a annular on the actuator (4) and outward in the recess of profile opening (14).
4. by one of claim 1 to 3 described clutch, it is characterized in that described lever has and the cooperative free end of an elastic element (13) (17).
5. by the described clutch of claim 4, it is characterized in that, elastic element (13) be installed in that actuator (4) is gone up and radially with stop surface (11) acting in conjunction of lever.
6. by the described clutch of claim 5, it is characterized in that lever has the locking zone (12) that has braking surface (15) at the opposite side of stop surface (11), corresponding corresponding surface (16) acting in conjunction of described braking surface and notch (7).
7. by the described clutch of claim 6, it is characterized in that locking zone (12) are in the extension of the circumferential extension of actuator (4) less than notch (7).
8. by arbitrary described clutch of claim 1 to 7, it is characterized in that, on actuator (4), be provided with three at least, and have three uniform notches (7) on the profile within it on the drive element (5) at least at the uniform lever of its circumferential zones.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999129833 DE19929833A1 (en) | 1999-06-30 | 1999-06-30 | Overload drill coupling has a drive section partially shrouded by a drive take-off section with inner ratchet locking pockets to take sprung locking levers from the drive section without digging into the pocket surfaces |
| DE19929833.5 | 1999-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1287231A true CN1287231A (en) | 2001-03-14 |
Family
ID=7912967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00118753 Pending CN1287231A (en) | 1999-06-30 | 2000-06-26 | Clutch for drilling tool |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2001027263A (en) |
| CN (1) | CN1287231A (en) |
| DE (1) | DE19929833A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890914A (en) * | 2010-07-19 | 2010-11-24 | 帖荣俊 | Centrifugal fly claw ratchet wheel braking locker and contact net compensation device |
| CN101973217A (en) * | 2010-11-02 | 2011-02-16 | 高勇 | Constant tension vortex spring compensating device |
| CN102840035A (en) * | 2012-09-22 | 2012-12-26 | 中国船舶重工集团公司第七�三研究所 | Novel throttle actuator |
| CN105179520A (en) * | 2015-10-09 | 2015-12-23 | 大连华锐重工起重机有限公司 | Ratchet and pawl device for crane |
| CN105257748A (en) * | 2015-10-15 | 2016-01-20 | 浙江亚特电器有限公司 | Elastic force part and overload clutch with elastic force part |
| CN105508461A (en) * | 2016-02-21 | 2016-04-20 | 上海洲跃生物科技有限公司 | High-load-carrying pin column type overrunning clutch |
| CN109398158A (en) * | 2017-08-15 | 2019-03-01 | 扬州东方吊架有限公司 | Bi-directional braking compensation device |
| US10570966B2 (en) | 2016-11-04 | 2020-02-25 | Milwaukee Electric Tool Corporation | Clutch mechanism for rotary power tool |
| CN111271391A (en) * | 2020-01-20 | 2020-06-12 | 长沙海川自动化设备有限公司 | Transmission system, lifting speed change system and lifting equipment |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10131220C1 (en) * | 2001-06-28 | 2003-03-06 | Metabowerke Gmbh | Electric handtool with overload coupling reducing torque transmitted between drive shaft of electric drive motor and driven stage when tool is blocked |
| JP2010038360A (en) * | 2008-07-08 | 2010-02-18 | Asmo Co Ltd | Clutch device, motor device, and wiper motor |
| DE102009046475A1 (en) | 2009-11-06 | 2011-05-12 | Hilti Aktiengesellschaft | torque coupling |
| CN102687609A (en) * | 2012-05-21 | 2012-09-26 | 浙江亚特电器有限公司 | Grass raker with clutch mechanism |
| DE102012209874A1 (en) * | 2012-06-13 | 2013-12-19 | Robert Bosch Gmbh | transmission device |
| EP2799733A1 (en) | 2013-04-30 | 2014-11-05 | HILTI Aktiengesellschaft | Machine tool |
| DE112014002530B4 (en) | 2013-05-22 | 2023-07-27 | Schaeffler Technologies AG & Co. KG | Freewheel and torque transmission device with a freewheel |
| JP6114681B2 (en) * | 2013-11-21 | 2017-04-12 | 三木プーリ株式会社 | Torque limiter |
| DE102017209831A1 (en) * | 2017-06-12 | 2018-12-13 | Robert Bosch Gmbh | Hand tool |
-
1999
- 1999-06-30 DE DE1999129833 patent/DE19929833A1/en not_active Withdrawn
-
2000
- 2000-06-26 CN CN 00118753 patent/CN1287231A/en active Pending
- 2000-06-29 JP JP2000195633A patent/JP2001027263A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890914A (en) * | 2010-07-19 | 2010-11-24 | 帖荣俊 | Centrifugal fly claw ratchet wheel braking locker and contact net compensation device |
| CN101890914B (en) * | 2010-07-19 | 2012-10-10 | 帖荣俊 | Centrifugal fly claw ratchet wheel braking locker and contact net compensation device |
| CN101973217A (en) * | 2010-11-02 | 2011-02-16 | 高勇 | Constant tension vortex spring compensating device |
| CN101973217B (en) * | 2010-11-02 | 2012-06-27 | 高勇 | Constant tension vortex spring compensating device |
| CN102840035A (en) * | 2012-09-22 | 2012-12-26 | 中国船舶重工集团公司第七�三研究所 | Novel throttle actuator |
| CN105179520A (en) * | 2015-10-09 | 2015-12-23 | 大连华锐重工起重机有限公司 | Ratchet and pawl device for crane |
| CN105257748B (en) * | 2015-10-15 | 2017-08-29 | 浙江亚特电器有限公司 | Spring element and the safety clutch using the spring element |
| CN105257748A (en) * | 2015-10-15 | 2016-01-20 | 浙江亚特电器有限公司 | Elastic force part and overload clutch with elastic force part |
| CN105508461A (en) * | 2016-02-21 | 2016-04-20 | 上海洲跃生物科技有限公司 | High-load-carrying pin column type overrunning clutch |
| CN105508461B (en) * | 2016-02-21 | 2017-10-31 | 上海洲跃生物科技有限公司 | A kind of high-mechanic pin column type freewheel clutch |
| US10570966B2 (en) | 2016-11-04 | 2020-02-25 | Milwaukee Electric Tool Corporation | Clutch mechanism for rotary power tool |
| US11519463B2 (en) | 2016-11-04 | 2022-12-06 | Milwaukee Electric Tool Corporation | Clutch mechanism for rotary power tool |
| US11933380B2 (en) | 2016-11-04 | 2024-03-19 | Milwaukee Electric Tool Corporation | Clutch mechanism for rotary power tool |
| CN109398158A (en) * | 2017-08-15 | 2019-03-01 | 扬州东方吊架有限公司 | Bi-directional braking compensation device |
| CN111271391A (en) * | 2020-01-20 | 2020-06-12 | 长沙海川自动化设备有限公司 | Transmission system, lifting speed change system and lifting equipment |
| CN111271391B (en) * | 2020-01-20 | 2021-05-07 | 长沙海川自动化设备有限公司 | Transmission system, lifting speed change system and lifting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001027263A (en) | 2001-01-30 |
| DE19929833A1 (en) | 2001-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |