CN102049549A - Drilling tool - Google Patents
Drilling tool Download PDFInfo
- Publication number
- CN102049549A CN102049549A CN 200910209244 CN200910209244A CN102049549A CN 102049549 A CN102049549 A CN 102049549A CN 200910209244 CN200910209244 CN 200910209244 CN 200910209244 A CN200910209244 A CN 200910209244A CN 102049549 A CN102049549 A CN 102049549A
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- Prior art keywords
- gear
- box
- actuator
- seal
- kind tool
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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
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 electric tools such as drill kind tool, between 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 to be supported in a plurality of planetary a plurality of supports that mesh in the internal gear, direction along axle connects, make it 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, it is not only rotatable but also can move vertically with an internal gear design, be provided with simultaneously and can drive this internal gear linkage part in axial sliding, 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 mesh the progression that reduces deceleration to internal gear simultaneously with support with in its next stage planet gear meshed, 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, be connected to by spline in the groove of the speed change adjuster (switching part) that is located at enclosure slidably, utilize the operation of speed change adjuster that gear lever is being endwisely slipped, the mechanism that internal gear is slided.In above-mentioned speed switching mechanism, owing to be internal gear to be striden across the gear-box gear lever (linkage part) outer with being located at gear-box be connected, so through hole must be set on gear-box, will produce lubricating grease like this 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 leaked out the drill kind tool of gear-box for a kind of lubricating grease that prevents is provided, and it provides excellent sealing performance when not influencing 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 the opening engagement ring gear of both sides respectively to the interior side direction bending of semicircular ring.
Further, comprise the regulating part that is arranged on the casing, the exercisable drive actuator motion of described regulating part is to regulate the axial location of ring gear.
Further, described opening extends axially along gear-box.
Further, described seal and gear-box relative fixed, 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 is provided with, 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 fixedlyed connected with seal, and drives the seal motion.
Further, described seal be can described relatively 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 first embodiment of drill kind tool of the present invention.
Fig. 2 is the high speed reducing ratio state diagram of first embodiment of drill kind tool of the present invention.
Fig. 3 is the low speed reducing ratio state diagram of first embodiment of drill kind tool of the present invention.
Fig. 4 is the stereogram of hermetic unit of first embodiment of drill kind tool of the present invention.
Fig. 5 is the cutaway view of second embodiment of drill kind tool of the present invention.
Fig. 6 is the schematic diagram of seal of 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 projectioies
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 pushing this switch 17.
Fig. 2 is to Figure 5 shows that the first embodiment of the present invention.Fig. 2, the high speed reducing ratio state of 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 only describes the part relevant with the present invention below.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.As Fig. 2, be the rear with the left side, the right side is the place ahead, under high speed reducing ratio state, ring gear 33 be positioned at epicyclic train axially on the front position.The inner periphery of ring gear 3 is by tooth and an a plurality of planetary gear that form a circle 35 engagements that are 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 the place ahead one-level again rotates, and is delivered to the place ahead primary planet carrier 37 with the rotation after will slowing down.As Fig. 3, under low speed reducing ratio state, ring gear 33 be positioned at epicyclic train axially on position after leaning on, 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, planet carrier 31 and planetary gear 35 relative fixed are in the same place, 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 designs is not only rotatable but also can move vertically.
Like this, can drive this internal gear 33 actuator in axial sliding, actuator is set again be connected, the slide drive ring gear 33 of regulating part is moved axially with the regulating part that is located at said machine casing 1 outside (figure does not show) by being provided with one.Can mesh the progression that reduces deceleration to ring gear 33 simultaneously 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, the top 41 of semicircular ring is slightly outwards protruded and is formed a protuberance, 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 a seal and a catch 25 on the end 43 of fork shift steel wire 4 from inside to outside respectively successively.In 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, move 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 axially moves in groove 23, and the perforate 21 of sealing gear-box 2 in its moving process all the time.
Foregoing, in first embodiment, in the fast state of drill kind tool and the transfer process of lower-speed state, the opening of gear-box is sealed in slide plate and the combination of fork shift steel wire all the time.
Followingly describe the second embodiment of the present invention in detail with reference to Fig. 5, Fig. 6.
As Fig. 5, similar with 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 with first embodiment is that seal is a flexible member, is specially a rubber parts 53.As Fig. 6, rubber parts 53 is elongated, and two ends have projection 531 respectively, 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 retaining 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, the opening 21 of gear-box 2 is sealed in rubber parts 53 and 4 combinations of fork shift steel wire all the time.
Claims (10)
1. a 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, the gear-box that holds described epicyclic train, gear-box is provided with for actuator and extends into opening in the gear-box outside gear-box, and it is characterized in that: drill kind tool further comprises seal, and described actuator and seal cooperate the described opening of sealing.
2. drill kind tool according to claim 1 is characterized in that: described seal is arranged between described actuator and the described opening.
3. drill kind tool according to claim 1 is characterized in that: comprise the regulating part that is arranged on the casing, the exercisable drive actuator motion of described regulating part is to regulate the axial location of ring gear.
4. drill kind tool according to claim 1 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 and gear-box relative fixed, and relative with actuator movable.
6. drill kind tool according to claim 1 or 5, it is characterized in that: 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 is provided with, and described lip limit and actuator fit tightly.
7. drill kind tool according to claim 6 is characterized in that: described seal and described gear-box are provided with projection and the depression that matches.
8. drill kind tool according to claim 1 is characterized in that: described actuator is fixedlyed connected with seal, and drives the seal motion.
9. according to claim 1 or 8 described drill kind tools, it is characterized in that: described seal is slide plate that can described relatively opening axial slip.
10. drill kind tool according to claim 8 is characterized in that: 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.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102049549A true CN102049549A (en) | 2011-05-11 |
| CN102049549B CN102049549B (en) | 2013-03-06 |
Family
ID=43954534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910209244 Active CN102049549B (en) | 2009-10-27 | 2009-10-27 | Drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102049549B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127472A1 (en) * | 2015-02-11 | 2016-08-18 | 徐新生 | Speed change gear box applicable to battery-type electric tool |
| CN107237887A (en) * | 2017-07-01 | 2017-10-10 | 浙江亚特电器有限公司 | A kind of planetary gear roller box and electric tool |
| CN108262503A (en) * | 2016-06-07 | 2018-07-10 | 延仕豪 | A kind of drilling equipment of adjustable vertical height |
Family Cites Families (9)
| 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 |
| DE19956789A1 (en) * | 1999-11-25 | 2001-05-31 | Zahnradfabrik Friedrichshafen | Planetary gear for mounting on electric motor, has sealing element between sun wheel shaft, and housing arranged axially outside output shaft accommodation region in reduced diameter section |
| JP3677190B2 (en) * | 2000-03-03 | 2005-07-27 | 株式会社マキタ | Clutch mechanism of driver drill |
| TW572152U (en) * | 2002-11-08 | 2004-01-11 | Power Network Industry Co Ltd | Three-stage gearshift mechanism |
| US6796921B1 (en) * | 2003-05-30 | 2004-09-28 | One World Technologies Limited | 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 |
-
2009
- 2009-10-27 CN CN 200910209244 patent/CN102049549B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127472A1 (en) * | 2015-02-11 | 2016-08-18 | 徐新生 | Speed change gear box applicable to battery-type electric tool |
| CN108262503A (en) * | 2016-06-07 | 2018-07-10 | 延仕豪 | A kind of drilling equipment of adjustable vertical height |
| CN107237887A (en) * | 2017-07-01 | 2017-10-10 | 浙江亚特电器有限公司 | A kind of planetary gear roller box and electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102049549B (en) | 2013-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| 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 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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 |