CN102049549B - Drilling tool - Google Patents

Drilling tool Download PDF

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Publication number
CN102049549B
CN102049549B CN 200910209244 CN200910209244A CN102049549B CN 102049549 B CN102049549 B CN 102049549B CN 200910209244 CN200910209244 CN 200910209244 CN 200910209244 A CN200910209244 A CN 200910209244A CN 102049549 B CN102049549 B CN 102049549B
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CN
China
Prior art keywords
gear
described
box
actuator
seal
Prior art date
Application number
CN 200910209244
Other languages
Chinese (zh)
Other versions
CN102049549A (en
Inventor
赵跟辉
Original Assignee
苏州宝时得电动工具有限公司
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 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Priority to CN 200910209244 priority Critical patent/CN102049549B/en
Publication of CN102049549A publication Critical patent/CN102049549A/en
Application granted granted Critical
Publication of CN102049549B publication Critical patent/CN102049549B/en

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Abstract

The invention relates to a drilling tool which comprises a shell, a motor positioned in the shell and used for outputting rotation motion, a planetary gear system used for transferring motor output, a main shaft driven by the planetary gear system to rotate, a chuck installed on the main shaft, an inner ring gear which is arranged in the planetary gear system and can move operationally and axially so that the planetary gear system can optionally output rotation motion with different speeds, a driving part which is connected with the inner ring gear and drives the inner ring gear to move axially, a gearbox which is positioned in the shell, can accommodate the planetary gear system and is provided with an opening used for the driving part to enter the gearbox from the outside, and a sealing element arranged between the driving part and the opening, wherein the driving part and the sealing element seal the opening.

Description

Drill kind tool

Technical field

The present invention relates to a kind of drill kind tool, relate in particular to a kind of drill kind tool with epicyclic train regulatory function.

Background technology

In the electric tools such as drill kind tool, between the output shaft that is disposed at the motor on the same axle and main shaft, planetary gear reducing mechanism is set.This planetary gear reducing mechanism handle in gear-box is used for being supported in a plurality of planetary a plurality of supports that mesh in the internal gear, direction along axle connects, make it the center planetary gear engagement at next stage, again by gear-box is contained on the motor, make pinion on the output shaft in the planetary central engagement of the first order.Main shaft is connected on the afterbody support.

In addition, sometimes also has the speed switching mechanism on the drill kind tool, its with the design of internal gear not only rotatably but also can move vertically, be provided with simultaneously and can drive in axial sliding linkage part of this internal gear, linkage part is connected with the switching part that is located at the aforementioned body housing exterior, with the slide interlock of switching part.Slide by the operation switching part, can internal gear with support with mesh simultaneously to reduce the progression of deceleration at the planetary gear of its next stage engagement, obtain low speed reducing ratio, the sliding position of drill kind tool high speed rotating, with internal gear is fixed on the gear-box inner surface to limit its rotation, make its only with planetary gear engagement, turn back to original step of reduction, become high speed reducing ratio, switch between the sliding position that drill kind tool slowly runs.For example, the gear lever (linkage part) of semicircular arc is set in gear case external surface, gear lever is to connect gear-box being located at following pin, be fixed on the internal gear, the projection that is located at this gear lever upper end, in the groove of the speed change adjuster (switching part) that is located at slidably enclosure, utilize the operation of speed change adjuster that gear lever is being endwisely slipped by spline joint, the mechanism that internal gear is slided.In above-mentioned speed switching mechanism, owing to being internal gear to be striden across the gear-box gear lever (linkage part) outer with being located at gear-box be connected, so must through hole be set at gear-box, will produce like this lubricating grease leaks internally, or opposite situation, the dust that enters in the shell is further gone to again in the gear-box, and the sliding capability of internal gear is worsened.

Summary of the invention

Purpose of the present invention is for providing a kind of lubricating grease that prevents to leak out the drill kind tool of gear-box, and it provides good sealing property when not affecting the drill kind tool speed-regulating function.

For achieving the above object, technical scheme of the present invention is:

A kind of drill kind tool comprises: casing; Be arranged in casing, the motor that output rotatablely moves; Transmit motor output epicyclic train; Driven the main shaft of rotation by described epicyclic train; Be installed in the chuck on the main shaft; Be arranged at the ring gear in the epicyclic train, ring gear is exercisable to be moved axially so that epicyclic train is optionally exported rotatablely moving of friction speed; Connection also drives the actuator that ring gear moves vertically; Be arranged in casing, hold the gear-box of described epicyclic train, gear-box is provided with for actuator and enters opening in the gear-box outside gear-box, and drill kind tool further comprises seal, and described actuator and seal cooperate the described opening of sealing.

Further, described seal is arranged between described actuator and the described opening.

Further, the corresponding both sides of described gear-box are respectively equipped with opening, and described actuator is the fork shift steel wire that is semi-annular shape, and two ends of described fork shift steel wire pass respectively the opening engagement ring gear of both sides to the interior side direction bending of semicircular ring.

Further, comprise the regulating part that is arranged on the casing, the exercisable drive actuator of described regulating part moves to regulate the axial location of ring gear.

Further, described opening extends axially along gear-box.

Further, described seal is relative with gear-box fixing, and is relative with actuator movable.

Further, described seal is provided with the slit that is arranged in aperture position, and the both sides in slit are flexible lip limit, and described actuator passes the slit and arranges, and described lip limit and actuator fit tightly.

Further, described seal and described gear-box are provided with projection and the depression that matches.

Further, described actuator is fixedly connected with seal, and the motion of band dynamic seal.

Further, described seal be can relatively described opening axial slip slide plate.

Further, gear-box opening arranged outside has catch, and described catch is provided with the elongated slot that moves for actuator, and described seal is between catch and gear-box.

Compared with prior art, the invention has the beneficial effects as follows: the gear-box good airproof performance of drill kind tool, lubricating oil are difficult to be leaked from gear-box, and the working life of drill kind tool prolongs.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the overall schematic of the first embodiment of drill kind tool of the present invention.

Fig. 2 is the high speed reducing ratio state diagram of the first embodiment of drill kind tool of the present invention.

Fig. 3 is the low speed reducing ratio state diagram of the first embodiment of drill kind tool of the present invention.

Fig. 4 is the stereogram of hermetic unit of the first embodiment of drill kind tool of the present invention.

Fig. 5 is the cutaway view of the second embodiment of drill kind tool of the present invention.

Fig. 6 is the schematic diagram of seal of the second embodiment of drill kind tool of the present invention.

100 drill kind tools, 13 handles, 17 switches

1 casing, 15 power brick, 19 chucks

2 gear-boxes, 33 ring gears, 41 tops

21 openings, 331 annular grooves, 43 ends

23 elongated slots, 333 teeth, 51 slide plates

25 catch, 35 planetary gears, 53 rubber parts

3 epicyclic trains, 37 planet carriers, 531 projections

31 planet carriers, 4 fork shift steel wires, 533 lip limits

The specific embodiment

Below in conjunction with Fig. 1 to Fig. 4, describe the first embodiment of the present invention in detail.

Shown in Figure 1 is the overall schematic of the first embodiment of the present invention.As shown in Figure 1, drill kind tool 100 comprise the casing 1 that slightly favours horizontal direction and arrange, the handle 13 arranged at an angle with casing 1 and be positioned at handle 13 bottom detachable battery bags 15.Casing 1 front end is provided with hammer 19.Handle 6 is provided with switch 17, and the operator can start this drill kind tool 100 by pressing this switch 17.

Drill kind tool 100 comprises the motor (not shown), and motor is arranged in the casing 1, and front end extends the output shaft of motor.Epicyclic train 3 is positioned at output shaft one side of motor, is delivered to the main shaft of connecting clip 19 after the rotary speed reduction with output shaft.

Fig. 2 is to Figure 5 shows that the first embodiment of the present invention.Fig. 2, the high speed reducing ratio state of the first embodiment and the schematic diagram of low speed reducing ratio state of being respectively shown in Figure 3.Drill kind tool 100 has gear-box 2, and epicyclic train 3 is arranged in the gear-box 2.The structure that is used for the epicyclic train of drill kind tool deceleration is that the average technical staff of industry is known, and its concrete structure repeats no more, and the below only describes the part relevant with the present invention.Epicyclic train 3 has some ring gears, and it is circular that ring gear is, and inner periphery is furnished with continuous tooth 333.Wherein, ring gear 33 exercisable moving axially are optionally to place epicyclic train low speed reducing ratio state and high speed reducing ratio state.Such as Fig. 2, be that take the left side rear, right side are the place ahead, under high speed reducing ratio state, ring gear 33 be positioned at epicyclic train axially on the front position.A plurality of planetary gears 35 engagements that the inner periphery of ring gear 3 forms a circle by tooth and the axle that is connected around the planet carrier 31 of rear one-level.Like this, planetary gear 35 is driven rotation by rear primary planet carrier 31 and creeps along the tooth of ring gear 3, with respect to the axle revolution of planet carrier 31, the planet carrier 37 that the revolution of planetary gear 35 drives again the place ahead one-level rotates, and is delivered to the place ahead primary planet carrier 37 with the rotation after will slowing down.Such as Fig. 3, under low speed reducing ratio state, ring gear 33 is positioned at the axially upper rearward position of epicyclic train, the inner periphery of ring gear 33 is by rear primary planet carrier 31 engagements of 333 whiles of tooth and planetary gear 35 and planetary gear 35, with planet carrier 31 and planetary gear 35 relative being fixed together, at this moment, ring gear 33 can rotate simultaneously.Like this, rear primary planet carrier 31 directly drives planetary gear 35 by ring gear 33 and rotates, and will be delivered to the place ahead primary planet carrier 37 without the rotation of slowing down.As mentioned above as can be known, ring gear 33 design not only rotatably but also can move vertically.

Like this, can drive in axial sliding actuator of this internal gear 33 by arranging one, actuator is set again be connected with the regulating part (not shown) that is located at said machine casing 1 outside, the slide drive ring gear 33 of regulating part is moved axially.Can mesh simultaneously the progression that reduces deceleration to ring gear 33 with planet carrier 31 with at the planetary gear 35 of its place ahead one-level engagement by regulating part, obtain low speed reducing ratio, the state of high speed rotating, or internal gear 33 is fixed on gear-box 2 inner surfaces to limit its rotation, it is only meshed with planetary gear 35, turn back to original step of reduction, become the state that high speed reducing ratio slowly runs.

With reference to Fig. 4, the outer peripheral face of ring gear 33 is provided with an annular groove 331 in axial sliding, when ring gear 33 moved axially, annular groove 331 was followed it and is moved axially, and the both sides of gear-box 2 are respectively arranged with axial opening 21 at the correspondence position of the moving range that is slightly larger than annular groove 331.Pass to hold actuator, regulating part and epicyclic train are meshed together.Aforesaid actuator is specially elastic spring 4, fork shift steel wire 4 roughly is a semi-annular shape, protuberance of the slightly outwardly formation in the top 41 of semicircular ring, be connected in the regulating part on the casing 1, its specific embodiment is known by the average technical staff in this area, does not repeat them here.Two ends, 43 bendings of fork shift steel wire 4 are extended to the inboard of semicircular ring, and the opening 21 that passes gear-box 2 both sides extend in the annular groove 331 of ring gear 33.Like this, described speed governing button exercisable drive fork shift steel wire 4 and ring gear 33 move axially, and drill kind tool is switched between fast state and lower-speed state.

The both sides of gear-box 2 are respectively equipped with groove 23, and groove 23 is axial arranged along gear-box 2, and aforesaid two openings 21 lay respectively in the groove 23 and less than groove 23.And, also pass successively respectively from inside to outside a seal and a catch 25 on the end 43 of fork shift steel wire 4.In the first embodiment, seal is specially slide plate 51.Slide plate 51 and catch 25 lay respectively in the corresponding groove 23.Wherein, catch 25 relatively-stationary being placed in the groove 23 have axial slotted hole on it, and are mobile in slotted hole to allow fork shift steel wire 4, and slide plate 51 is limited in the groove 23 and can not come off.Make peace the greatly sizableness of groove 23 of the size of catch 25.Slide plate 51 has perforate equally, and the diameter of the end 43 of the size of perforate and elastic spring 4 is suitable, so that slide plate 51 and elastic spring 4 are combined closely.The size of slide plate 1 is greater than the opening 21 of gear-box 2, and less than groove 23, so that along with elastic spring 4 moves axially, slide plate 51 is axially mobile in groove 23, and all the time perforate 21 of closed gear case 2 in its moving process.

Foregoing, in the first embodiment, in the fast state of drill kind tool and the transfer process of lower-speed state, slide plate and the combination of fork shift steel wire, all the time opening of closed gear case.

Describe the second embodiment of the present invention in detail referring to Fig. 5, Fig. 6.

Such as Fig. 5, similar with the first embodiment, the both sides of gear-box 2 are provided with the axially extended opening 21 along gear-box 2, and elastic spring 4 passes the annular groove 331 that opening 21 extend into ring gear 33, move axially fast state and the lower-speed state that switches drill kind tool to drive ring gear 33.Different from the first embodiment is that seal is a flexible member, is specially a rubber parts 53.Such as Fig. 6, rubber parts 53 is elongated, and two ends have respectively projection 531, and gear-box 2 is provided with corresponding depression, so that rubber parts 53 is installed on the wall of gear-box 2, and covers the opening 21 of gear-box 2.The position of rubber parts 53 and opening 2 correspondences is provided with axial slit, and the both sides in slit are provided with 533, two lip limits 533, lip limit owing to elasticity fits tightly together.The slit that two ends 43 of fork shift steel wire 4 pass the rubber parts 53 of both sides enters the annular groove 331 of ring gear 33, and at described slit axis to moving around.Because lip limit 533 is resilient parts, therefore, in group process that gear steel wire 4 moves, lip limit 533 coats fork shift steel wire 4 all the time, and the part outside fork shift steel wire 4 positions keeps fitting.Formation is to the sealing of opening 21.

Foregoing, in a second embodiment, in the fast state of drill kind tool and the transfer process of lower-speed state, rubber parts 53 and 4 combinations of fork shift steel wire, all the time opening 21 of closed gear case 2.

Claims (8)

1. a drill kind tool comprises: casing; Be arranged in casing, the motor that output rotatablely moves; Transmit the epicyclic train of motor output; Driven the main shaft of rotation by described epicyclic train; Be installed in the chuck on the main shaft; Be arranged at the ring gear in the epicyclic train, ring gear is exercisable to be moved axially so that epicyclic train is optionally exported rotatablely moving of friction speed; Connection also drives the actuator that ring gear moves vertically; Be arranged in casing, the gear-box that holds described epicyclic train, gear-box is provided with for actuator and enters opening in the gear-box from the gear-box extension, it is characterized in that: drill kind tool further comprises seal, described actuator and seal cooperate the described opening of sealing, described actuator is fixedly connected with seal, and band dynamic seal motion, gear-box opening arranged outside has catch, described catch is provided with the elongated slot that moves for actuator, and described seal is between catch and gear-box.
2. drill kind tool according to claim 1, it is characterized in that: described seal is arranged between described actuator and the described opening.
3. drill kind tool according to claim 1, it is characterized in that: comprise the regulating part that is arranged on the casing, the exercisable drive actuator of described regulating part moves to regulate the axial location of ring gear.
4. drill kind tool according to claim 1, it is characterized in that: described opening extends axially along gear-box.
5. drill kind tool according to claim 1 is characterized in that: described seal is slide plate that can relatively described opening axial slip.
6. a drill kind tool comprises: casing; Be arranged in casing, the motor that output rotatablely moves; Transmit the epicyclic train of motor output; Driven the main shaft of rotation by described epicyclic train; Be installed in the chuck on the main shaft; Be arranged at the ring gear in the epicyclic train, ring gear is exercisable to be moved axially so that epicyclic train is optionally exported rotatablely moving of friction speed; Connection also drives the actuator that ring gear moves vertically; Be arranged in casing, the gear-box that holds described epicyclic train, gear-box is provided with for actuator and enters opening in the gear-box from the gear-box extension, it is characterized in that: drill kind tool further comprises seal, described actuator and seal cooperate the described opening of sealing, and described seal is provided with the slit that is arranged in aperture position, and the both sides in slit are flexible lip limit, described actuator passes the slit and arranges, and described lip limit and actuator fit tightly.
7. drill kind tool according to claim 6, it is characterized in that: described seal is relative with gear-box fixing, and is relative with actuator movable.
8. according to claim 6 or 7 described drill kind tools, it is characterized in that: described seal and described gear-box are provided with projection and the depression that matches.
CN 200910209244 2009-10-27 2009-10-27 Drilling tool CN102049549B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910209244 CN102049549B (en) 2009-10-27 2009-10-27 Drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910209244 CN102049549B (en) 2009-10-27 2009-10-27 Drilling tool

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Publication Number Publication Date
CN102049549A CN102049549A (en) 2011-05-11
CN102049549B true CN102049549B (en) 2013-03-06

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Application Number Title Priority Date Filing Date
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728402B (en) * 2015-02-11 2017-05-31 徐新生 It is a kind of to can be used for the change gear box of cordless power tool
CN105834486B (en) * 2016-06-07 2018-04-03 浙江西维亚进出口有限公司 A kind of drilling equipment of adjustable vertical height

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29904051U1 (en) * 1999-03-05 1999-06-17 Chung Lee Hsin Chih Switching device for a reduction gear
US6142242A (en) * 1999-02-15 2000-11-07 Makita Corporation Percussion driver drill, and a changeover mechanism for changing over a plurality of operating modes of an apparatus
CN1311404A (en) * 2000-03-03 2001-09-05 株式会社牧田 Improved clutch mechanism for two purpose tool for screw driving and hole drilling
CN1379849A (en) * 1999-11-25 2002-11-13 腓特烈斯港齿轮工厂股份公司 Planetary gearbox for mounting on electromotor
GB2396390B (en) * 2002-11-08 2005-01-12 Mobiletron Electronics Co Ltd Speed changing mechanism for tools
CN1583370A (en) * 2003-05-30 2005-02-23 创科实业有限公司 Three speed rotary power tool
JP4008892B2 (en) * 2004-03-19 2007-11-14 強網工業股▲ふん▼有限公司 Multistage shift device
CN200991885Y (en) * 2006-12-19 2007-12-19 苏州宝时得电动工具有限公司 Electric tool
CN201552317U (en) * 2009-10-27 2010-08-18 苏州宝时得电动工具有限公司 Drilling tool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142242A (en) * 1999-02-15 2000-11-07 Makita Corporation Percussion driver drill, and a changeover mechanism for changing over a plurality of operating modes of an apparatus
DE29904051U1 (en) * 1999-03-05 1999-06-17 Chung Lee Hsin Chih Switching device for a reduction gear
CN1379849A (en) * 1999-11-25 2002-11-13 腓特烈斯港齿轮工厂股份公司 Planetary gearbox for mounting on electromotor
CN1311404A (en) * 2000-03-03 2001-09-05 株式会社牧田 Improved clutch mechanism for two purpose tool for screw driving and hole drilling
GB2396390B (en) * 2002-11-08 2005-01-12 Mobiletron Electronics Co Ltd Speed changing mechanism for tools
CN1583370A (en) * 2003-05-30 2005-02-23 创科实业有限公司 Three speed rotary power tool
JP4008892B2 (en) * 2004-03-19 2007-11-14 強網工業股▲ふん▼有限公司 Multistage shift device
CN200991885Y (en) * 2006-12-19 2007-12-19 苏州宝时得电动工具有限公司 Electric tool
CN201552317U (en) * 2009-10-27 2010-08-18 苏州宝时得电动工具有限公司 Drilling tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特许第4008892号B2 2007.11.14

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Measuring appliance and drilling tool and accessory case using same

Effective date of registration: 20140515

Granted publication date: 20130306

Pledgee: Bank of Communications Ltd Suzhou branch

Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou

Registration number: 2014990000362

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20180416

Granted publication date: 20130306

Pledgee: Bank of Communications Ltd Suzhou branch

Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou

Registration number: 2014990000362