[go: up one dir, main page]

WO2006029574A1 - Outil a percer electrique - Google Patents

Outil a percer electrique Download PDF

Info

Publication number
WO2006029574A1
WO2006029574A1 PCT/CN2005/001480 CN2005001480W WO2006029574A1 WO 2006029574 A1 WO2006029574 A1 WO 2006029574A1 CN 2005001480 W CN2005001480 W CN 2005001480W WO 2006029574 A1 WO2006029574 A1 WO 2006029574A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill
power tool
type power
bearing sleeve
output shaft
Prior art date
Application number
PCT/CN2005/001480
Other languages
English (en)
Chinese (zh)
Inventor
Chengdao Li
Gen Sun
Original Assignee
Positec Power Tools (Suzhou) Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Positec Power Tools (Suzhou) Co., Ltd. filed Critical Positec Power Tools (Suzhou) Co., Ltd.
Publication of WO2006029574A1 publication Critical patent/WO2006029574A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0038—Tools having a rotation-only mode

Definitions

  • the present invention relates to a drill-type power tool, and more particularly to an electro-cobalt that can adjust all modes of operation of the tool using an adjustment cover.
  • the rear side of the first transmitting member is axially disposed with a plurality of inclined protrusions, and the static end teeth are integrally formed in the second transfer inner cavity, and the front end of the cylindrical outer casing of the second transmitting member is provided with the number and the A respective one of the plurality of axially extending grooves with corresponding bevels.
  • the output shaft When the protrusion is combined with the groove, the output shaft outputs a rotary impact motion; when the protrusion climbs out of the groove and abuts against the rear end surface of the second transmission member, the output shaft output rotates, and at this time, the drill can pass the torque Adjustment can be used as a screwdriver, and drilling can also be done.
  • Torque adjustment and the need to realize the impact output, and it is necessary to cooperatively adjust the two rotating rings to realize the operation is inconvenient.
  • the drill when the drill is in the non-impact mode, there is no mode switching structure setting between the drilling and the torque adjustment, so that there is room for adjustment when the operator performs the drilling motion, so if the output shaft end If the load is greater than the torque setting at the torque adjustment, the output shaft will not stop due to insufficient back torque, and the drilling work cannot be carried out.
  • the conversion of the impact and non-impact modes must be completely disengaged by the operator's hand to make the bulge and groove climb off. It takes a lot of force to complete the conversion, and the drilling takes a long time. It is prone to the phenomenon that the operator wears the climbing slope during non-impact work, the bump slips into the groove, and the output is accidentally output.
  • the technical problem to be solved by the present invention is to provide an electric drill that performs switching of each working mode through a rotary adjusting cover, and the output is stable under the operation of each mode.
  • a cobalt type electric tool comprising: a front case, which is worn on the confirmed An output shaft in the front housing, a movable end tooth fixedly connected to the output shaft, a static end tooth connected to the front housing, a support, and a first reset disposed between the support and the movable end tooth
  • the component is characterized in that: a grooved disk is connected to the inner cavity of the front casing, the output shaft passes through the grooved disk and the bearing sleeve, and the second resetting element is disposed on the grooved disk and the bearing sleeve a grooved tooth is disposed on a portion of the grooved disk facing the bearing sleeve, and a bearing sleeve corresponding to the grooved disk tooth is disposed on a portion of the bearing sleeve facing the grooved disk, the bearing When the set of teeth cooperates with the grooved teeth, the drill-type power tool is in an impact mode of operation.
  • the invention has the beneficial effects of providing an electro-cobalt which can conveniently and quickly select the working mode of the drill-type electric tool only by the rotation of the single-adjusting cover, and at the same time, the cobalt output is stable in each mode.
  • FIG. 1 is a partial cross-sectional view of the drill-type power tool of the present invention, in an initial state of torque adjustment;
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is an output shaft assembly of the drill-type power tool of the present invention.
  • Figure 4 is an exploded view of related parts of the drill-type power tool of the present invention.
  • Figure 5 is an exploded view of the output shaft assembly of Figure 3;
  • Figure 6 is a partial cross-sectional view showing the drill-type power tool of the present invention in a state where the torque is adjusted to the maximum;
  • Figure ⁇ is a cross-sectional view taken along line B-B of Figure 6;
  • Figure 8 is a partial cross-sectional view showing the drill-type power tool of the present invention, in a cobalt-in operation mode
  • Figure 9 is a cross-sectional view taken along line C-C of Figure 8.
  • Figure 10 is a partial cross-sectional view showing the drill-type power tool of the present invention, in an impact mode
  • Figure 11 is a cross-sectional view taken along line D-D of Figure 10.
  • Figure 12 shows the state in which the bearing sleeve teeth 131 on the bearing sleeve 13 correspond to the positions of the grooved teeth 112 on the grooved disk 11 on the output shaft assembly;
  • Figure 13 shows the state in which the bearing sleeve teeth 131 on the bearing sleeve 13 are combined with the grooved teeth 112 on the slotted disk 11 on the output shaft assembly, that is, the drill-type power tool is in an impact mode;
  • a preferred embodiment of the invention is an electroconductive cobalt.
  • Figure 1 is a partial cross-sectional view of the electric drill.
  • a motor placed at the rear of the electrocobalt (the right side of the figure) is energized and is output at its output shaft.
  • the rotary motion is output, the rotational motion from the motor is shifted by the shift gear set and transmitted to the gear 25, and the planetary gear 24 meshes with the gear 25, and a carrier 21 is coupled to the planetary gear 24 via the planetary shaft 22, an inner ring gear 26 is engaged with the planetary gear 24, and an adapter disk 20 having an internal spline tooth is connected to the inner side of the carrier 21 and cannot rotate relative to the latter, and the outer end of the output shaft 14 of the electric drill is provided with external spline teeth. And incorporated in the inner bore of the adapter disk 20, the rear end of the output shaft 14 of the electric drill is supported on a support 19 fixed in the front casing 2. In the preferred embodiment, the support 19 is fixedly fitted in front.
  • the bearing on the casing 2 may also be a hole integrally provided on the front casing or other alternative form that one skilled in the art may associate in accordance with the present invention.
  • the front end of the output shaft 14 is supported on the bearing sleeve 13, and the outer peripheral clearance of the bearing sleeve is fitted to the front end of the inner casing 2, so that the output shaft 14 is well supported, and the rotation from the motor is transmitted to the output shaft 14. And output through the output shaft end.
  • the electric drill is provided with a structure and a device for switching the working state of the electric drill.
  • the electric drill of the invention can output three kinds of movements of torsion, drilling and impact at the output shaft end, and in the working state of outputting the torsion, the electric drill can perform torque output and adjustment like the screwdriver. Referring to Figures 1 and 6, wherein the front end of the support post 1 abuts against the press ring 4, the rear end abuts against the inner ring gear 26, and one end of the elastic member 5 abuts against the press ring 4, and one end abuts against the screw cap 6.
  • the screw cap 6 is combined with the adjustment cover 7.
  • the adjusting cover 7 is rotated, and the screw cap 6 is moved by the screwing therebetween to compress the elastic member 5 to compress, and the pressing ring 4 is pressed backward to press the supporting column 1 against the front surface of the ring gear 26.
  • the front surface of the ring gear 26 is provided with a plurality of slopes 261 with a circumferentially small inclined surface protruding forward.
  • the support column 1 has a climbing slope S1 of the inner ring gear 26, such that when the torque acting on the output shaft 14 is greater than the output torque value set by the gun drill, the torque of the output shaft 14 is externally loaded due to the above-described rotational transmission setting.
  • the value of the output torque set by the gun drill causes the inner ring gear 26 to rotate.
  • the support column 1 is forced to move the push ring 4 by the action of the slope 261 provided on the inner ring gear 26, since S2>S1, Thus, the support column 1 climbs over the slope 261 of the end surface of the ring gear 26 to cause a tripping phenomenon, and a hill-climbing sound is emitted, and no output is output at the output shaft 14, at this time, or the screw at the output end (not shown) is It is good in the workpiece (not shown), or it needs to adjust the cover 7 to increase the output torque to make the screw screw into the workpiece (in the figure) Not given).
  • Fig. I and Fig. 2 show the state where the output torque is adjusted to a very small state.
  • Fig. 6 and Fig. 7 show the state where the output torque is adjusted to the maximum, that is, at this time, the electric cobalt is in the critical state of the torque adjustment to the drilling gear. status.
  • the static end teeth 8 provided with teeth on the front end surface are fixedly engaged in the inner cavity of the front shell, and the central hole of the static end teeth 8 is matched with the output shaft 14 .
  • the first returning element 9 is sleeved on the output shaft 14, the rear end of the first returning element 9 is passed through the stationary end teeth 8 against the support 19, and the front end abuts the moving end tooth
  • the first reset element 9 is a spring, but other elastic elements that are conceivable by those skilled in the art may also be used herein as an alternative.
  • the inner cavity of the front case 2 is formed with at least one axially extending groove 201 and a stepped surface 202, and the grooved disk 11 is provided with a shape and a number corresponding to the groove 201.
  • the rib 111 is engaged with the groove 201 on the front case 2 through the radial rib 111, and the groove plate 11 is seated on the step surface 202 on the front case 2. At least one bead 15 is received in the recess 201 on the front case 2.
  • a press sleeve 16 is sleeved on the output shaft 14 and fastened to the front end of the front case 2 by a screw 17, the rear end of the bead 15 abuts against the groove plate 11, and the front end abuts against the pressure sleeve 16 on.
  • the grooved disk 11 may be integrally formed on the inner cavity of the front case 2, which will increase the outer peripheral circumference of the front case, but the processing and installation of the bead and the groove 201 are omitted. A better design.
  • the front end surface of the groove plate 11 is provided with grooved teeth 112.
  • the grooved disk teeth are axially notched or convex, and the bearing sleeve 13 is movably coupled to the output shaft 14 on the rear end surface of the bearing sleeve 13
  • Bearing sleeve teeth 131 are provided, and the position and shape of the bearing sleeve teeth 131 correspond to the position and shape of the grooved disk teeth 112 on the groove plate 11.
  • the bearing sleeve teeth 131 are projections or recesses that correspond in position and shape to the grooved teeth 112.
  • the second restoring element 12 is disposed between the bearing sleeve 13 and the slotted disk 11.
  • the second restoring element 12 is a spring, one end of which is snapped into the slot 113 on the slotted disk 11, and the other end is stuck The rear end of the bearing sleeve 13.
  • the front side of the bearing sleeve is provided with a recess, and the recess receives a flat bearing 27 sleeved on the output shaft 14.
  • the front end surface of the flat bearing 27 is placed on the shoulder 141 of the output shaft 14, which can be placed here. The friction between the bearing sleeve 13 and the shoulder 141 is greatly reduced.
  • the distance S2 between the pressing ring 4 and the screw cover 6 is smaller than the climbing height S1 of the support column 1 and the inner ring gear 26, when the electric cobalt is subjected to an external load, although the output shaft
  • the outer load received by the 14 places causes the inner ring gear 26 to rotate by the above-described rotation transmission setting, and the support column 1 is forced to move the push ring 4 backward, but since S2 ⁇ S1, at this time, the support column 1 is not sufficient.
  • the receding space is moved back over the ramp 261 of the ring gear 26 to prevent the tripping phenomenon, and the output end of the output shaft 14 is constantly outputted to keep the drilling state of the electric drill.
  • the bearing sleeve teeth 131 on the bearing sleeve 13 correspond in position and shape to the position and shape of the grooved disk teeth 112 on the end surface of the grooved disk 11, and are designed to
  • the meshing effect of the movable end tooth 10 and the static end tooth 8 is optimal, and the distance HI is set slightly larger than the distance H2, so that when the drill chuck 18 is subjected to the axial backward load, the output shaft 14 can be moved backwards.
  • the end teeth 10 and the stationary end teeth 8 can be fully meshed, and the output shaft 14 outputs a rotational and impact motion.
  • the distance S2 between the pressing ring 4 and the screw cap 6 is smaller than the climbing height S1 of the support column 1 and the inner ring gear 26, the principle is the same as when drilling the gear, and the support column 1 cannot climb over the front end of the ring gear.
  • the electric drill does not cause a tripping phenomenon between the support column 1 and the inner ring gear 26, and the output shaft 14 of the electric cobalt constantly outputs an impact motion.
  • a shifting plate 3 is disposed between the front casing 2 and the adjusting cover 7, and the protruding portion 301 thereon has a corresponding position on the inner cavity of the adjusting cover 1.
  • the grooves 702 are detachably or in combination. When the adjusting cover 7 is twisted, the protruding portion 301 continuously slides from one groove 702 into the other groove 702, and the operator can hear the squeaking sound.
  • the design not only makes the adjustment feeling of the adjusting cover 7 good, but also prevents the position adjustment of the electric drill from being inaccurate due to the self-rotation of the adjusting cover 7.
  • the grooved disk 11 is engaged with the correspondingly shaped groove 201 on the inner cavity of the front case 2 through the radial rib 111, and passes through the rear end face and the front case inner cavity
  • the upper stepped surface 202 is fitted in the front casing 2, and a second restoring member 12 is disposed between the bearing sleeve 13 and the grooved disk 11.
  • the resetting element 12 is a spring, one end of which is a slotted disk
  • the slots 113 on the 11 are mated and the other end mates with a hole or slot in the rear end face of the bearing sleeve 13.
  • the rear end face of the bearing sleeve 13 is rotated by rotating the adjusting cover 7 through the inner bump 701 on the bearing sleeve 13 to rotate the latter by a predetermined angle.
  • the upper bearing sleeve teeth 131 are turned to a position corresponding to the grooved teeth 112 on the grooved disk 11, and the bearing sleeve 13 is engaged with the grooved disk 11, and the second returning element 12 is acted upon by the front end load of the output shaft 14 Tightening and compressing, the first returning element 9 is also in an axially compressed state, and relative movement between the movable end tooth 10 and the stationary end tooth 8 can occur.
  • the inner side protrusion 701 of the adjusting cover 7 no longer limits the bearing sleeve fork 132.
  • the main shaft 14 returns to the state of FIG. 3 under the action of the return spring 9, while Under the action of the torsion and axial force of the second restoring element 12, the shifting fork 132 on the bearing sleeve 13 returns to the position shown in FIG.
  • the outer surface of the adjustment cover 7 is marked with a pattern mark 28, outside the front case 2.
  • the side is marked with an indicator mark 203, and the rotation adjustment cover 7 corresponds to mode switching between the components inside the drill, and the indicator mark 203 is respectively aligned with the corresponding mode mark, thereby visualizing the operation mode switching of the electric drill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

L'invention concerne un outil à percer électrique qui comprend un logement frontal (2), un arbre de sortie (14) traversant le logement frontal, une came active (10) reliée fixe à l'arbre, une came de fixation (8) reliée au logement frontal, un élément de support (19), un premier élément de retour (9) disposé entre l'élément de support et la came (10) et une bague (11) reliée à la chambre intérieure du logement frontal. De plus, l'arbre traverse la bague et un coussinet de palier (13) et un second élément de retour (12) est disposé entre la bague et le coussinet. Des dents de bague (112) sont disposées à l'endroit où la bague fait face au coussinet. Par ailleurs, des dents de coussinet (131) correspondant aux dents de bague sont disposées à l'endroit où le coussinet fait face à la bague. L'outil à percer électrique selon l'invention passe en mode de travail par impacts lorsque les dents de coussinet sont en prise avec les dents de bague. Par conséquent, l'outil à percer électrique peut rapidement et facilement choisir un mode de travail par la simple rotation d'un manchon de réglage.
PCT/CN2005/001480 2004-09-17 2005-09-16 Outil a percer electrique WO2006029574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2004100799218A CN100563942C (zh) 2004-09-17 2004-09-17 钻类电动工具
CN200410079921.8 2004-09-17

Publications (1)

Publication Number Publication Date
WO2006029574A1 true WO2006029574A1 (fr) 2006-03-23

Family

ID=36059708

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001480 WO2006029574A1 (fr) 2004-09-17 2005-09-16 Outil a percer electrique

Country Status (2)

Country Link
CN (1) CN100563942C (fr)
WO (1) WO2006029574A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101091998B (zh) * 2006-06-19 2012-03-28 苏州宝时得电动工具有限公司 变速工具
CN101422896B (zh) * 2007-11-01 2012-03-28 苏州宝时得电动工具有限公司 冲击钻
CN101761615B (zh) * 2008-10-30 2012-03-28 苏州宝时得电动工具有限公司 变速工具
DE102009027223B4 (de) 2009-06-26 2022-01-13 Robert Bosch Gmbh Handgeführtes Elektrowerkzeug mit Rastenwerk
CN102398251A (zh) * 2010-09-07 2012-04-04 庆腾精密科技股份有限公司 逆转无法产生震动的装置
CN102814528B (zh) * 2012-08-20 2014-06-18 金应太 多功能冲击钻
CN103878748A (zh) * 2012-12-21 2014-06-25 苏州宝时得电动工具有限公司 紧凑型冲击结构
CN106272267B (zh) * 2015-06-01 2018-09-07 苏州宝时得电动工具有限公司 动力工具
CN109366424A (zh) * 2017-06-27 2019-02-22 苏州宝时得电动工具有限公司 电动工具的控制方法、控制装置及电动工具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711380A (en) * 1996-08-01 1998-01-27 Chen; Yueh Rotate percussion hammer/drill shift device
DE20007588U1 (de) * 1999-11-03 2000-07-27 Chen, Yueh, Taipeh/T'ai-pei Dreh-/Pendelbewegungsumschaltmechanismus für ein motorangetriebenes Handwerkzeug
CN1483541A (zh) * 2002-09-20 2004-03-24 ɽ�������е�ɷ����޹�˾ 动力夹紧钻夹头
CN2613331Y (zh) * 2003-04-23 2004-04-28 苏州宝时得电动工具有限公司 钻类电动工具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711380A (en) * 1996-08-01 1998-01-27 Chen; Yueh Rotate percussion hammer/drill shift device
DE20007588U1 (de) * 1999-11-03 2000-07-27 Chen, Yueh, Taipeh/T'ai-pei Dreh-/Pendelbewegungsumschaltmechanismus für ein motorangetriebenes Handwerkzeug
CN1483541A (zh) * 2002-09-20 2004-03-24 ɽ�������е�ɷ����޹�˾ 动力夹紧钻夹头
CN2613331Y (zh) * 2003-04-23 2004-04-28 苏州宝时得电动工具有限公司 钻类电动工具

Also Published As

Publication number Publication date
CN100563942C (zh) 2009-12-02
CN1748950A (zh) 2006-03-22

Similar Documents

Publication Publication Date Title
US6688406B1 (en) Power tool having a function control mechanism for controlling operation in one of rotary drive and hammering modes
US6892827B2 (en) Electrically operated vibrating drill/driver
US7124839B2 (en) Impact driver having an external mechanism which operation mode can be selectively switched between impact and drill modes
US7131503B2 (en) Impact driver having a percussion application mechanism which operation mode can be selectively switched between percussion and non-percussion modes
EP1716978B1 (fr) Outil électrique
WO2009006845A1 (fr) Outil de puissance
US6691796B1 (en) Power tool having an operating knob for controlling operation in one of rotary drive and hammering modes
US8939228B2 (en) Percussion driver drill
KR101322216B1 (ko) 마찰 클러치를 가진 파워 툴
CN102476367B (zh) 动力工具
WO2011046029A1 (fr) Dispositif à percussion
US20120255755A1 (en) Power tool
WO2006029574A1 (fr) Outil a percer electrique
CN201881359U (zh) 动力工具
US6874585B2 (en) Power drill
JP7217077B2 (ja) ネジ締め工具
TWM247372U (en) Gear box for power tool
JP4085747B2 (ja) 振動ドリルドライバ
JP3238639B2 (ja) 電動スクリュドライバのサイレントクラッチ
CN114888762B (zh) 一种作业模式切换电动工具
WO2012010093A1 (fr) Outil électrique
JP2003220570A (ja) 振動ドリルドライバ
TWI513556B (zh) Power tools and their torque switching devices
CN106737436B (zh) 一种冲击钻的冲击功能切换机构
JPH11872A (ja) シャーボルトの仮締め機

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase