CN207273154U - A kind of brushless electric tool - Google Patents
A kind of brushless electric tool Download PDFInfo
- Publication number
- CN207273154U CN207273154U CN201720628685.3U CN201720628685U CN207273154U CN 207273154 U CN207273154 U CN 207273154U CN 201720628685 U CN201720628685 U CN 201720628685U CN 207273154 U CN207273154 U CN 207273154U
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- CN
- China
- Prior art keywords
- gearshift
- gear
- steel wire
- block set
- spacing block
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- 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.)
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Abstract
The utility model discloses a kind of brushless electric tool, including housing and the electric machine assembly being arranged in housing, output shaft, front gear box, rear gear box and shifter assemblies, the both sides of rear gear box are provided with arc sliding groove, shifter assemblies include gear shift push button, gear shift steel wire, one step component, two level gear component and the gear shift gear ring coordinated with two level gear component, feature is the spacing block set being provided with the outside of arc sliding groove along the radially outwardly projecting of rear gear box, spacing block set apical grafting is on the sidepiece of gear shift steel wire, when the lower end of gear shift steel wire slides back and forth in arc sliding groove, the sidepiece of gear shift steel wire is moved back and forth along spacing block set；Advantage is that spacing block set heads on gear shift steel wire all the time during moving, position-limiting action of the spacing block set with arc sliding groove in itself is engaged after the completion of gear shift, under punching, locked rotor condition, gear shift gear ring will not be out of supply easily, adds the service life and security of machine.
Description
Technical field
A kind of electric tool is the utility model is related to, especially a kind of brushless electric tool.
Background technology
The species of electric tool has very much, there is electronic drill gun, electric screwdriver, electric shear, electric hammer etc., wherein, it is electronic
Drill gun is more convenient due to being used when its carrying and drilling, is widely used in the industries such as building, finishing, furniture；It is existing most of
Drill gun only sets single speed, can not meet the use demand of different borehole environments.
In order to increase the function that double speed is adjusted, the China of an existing Patent No. 201620656756.6 in drill gun structure
Utility model patent discloses a kind of double speed lithium electricity rifle, its drill chuck for including setting gradually, torsion lid, casing, arranged on casing
Interior electric machine assembly, cartridge assemblies, switch and lithium battery pack and the throw-over push button on casing and commutation driving lever, wherein,
Cartridge assemblies include connecting plate, primary planet pinion, the first planet carrier, the first gear ring, secondary planetary gear, the second planet carrier,
Second gear ring, three-stage planetary gear, the 3rd gear ring, the third line carrier, reduction box, output shaft and screwed ring, connecting plate and motor
Fixed, primary planet pinion is meshed with motor gear, the first gear ring, and the first planet carrier is connected with primary planet pinion, and two
Level planetary gear is meshed with the first planet carrier and is connected with the second planet carrier, three-stage planetary gear and the second planet carrier, the
Three gear rings are meshed, and the third line carrier is connected with three-stage planetary gear, and the side face of the second gear ring is provided with annular groove, screwed ring
It is embedded in torsion lid, screwed ring is threadedly coupled with reduction box, and torque spring, gasket are arranged with screwed ring, is set on reduction box
Gearshift steel wire is equipped with, gearshift steel wire is fixed with throw-over push button, in the two free ends insertion annular groove for steel wire of shifting gears, peace in reduction box
Equipped with self-locking ring, self-locking block is provided with self-locking ring, self-locking block is fixed with the third line carrier, output shaft respectively, and output shaft is with boring
Collet is fixed, and lithium battery pack, motor are connected with switch, is switched and is connected with commutation driving lever, the knot of above double speed lithium electricity rifle
When in use, drill bit is installed on drill chuck for structure, when needing low speed rotation, is promoted throw-over push button, is passed through pierce tap of shifting gears
Dynamic second gear ring is engaged with secondary planetary gear, realizes three-level deceleration transmission, and self-locking block drives output shaft to rotate, and final drive is bored
Bit at collet, realizes that low speed drills；When needing to rotate at a high speed, throw-over push button is promoted, steel wire drives by shifting gears
Second gear ring is separated with secondary planetary gear, realizes that double reduction is driven, self-locking block drives output shaft to rotate, and finally drives drill point
Bit at head, realizes high-speed drilling, which can realize the drilling of friction speed, meet different boring requirements；
However, double speed lithium electricity rifle using the above structure, it is excessive or when running into motor rotation blockage state to encounter torsion when punching, can be to nibbling
The part of conjunction forms one larger active force, causes the second gear ring off-gear from secondary planetary gear.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of gearshift conveniently and is not easy the brushless electric of off-gear
Instrument.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of brushless electric tool, including shell
Body and electric machine assembly, output shaft, front gear box, rear gear box and the shift assembly being arranged in the housing, after described
The both sides of gear-box are provided with arc sliding groove, and the shift assembly includes gearshift push button, gearshift steel wire, level-one gear group
Part, two level gear component and the gearshift gear ring coordinated with the two level gear component, the gearshift push button can move back and forth
Be arranged on the housing, the level-one gear component is arranged in the front gear box, the two level gear
Component is arranged in the rear gear box, and the upper end of the gearshift steel wire is connected with the gearshift push button, and described changes
It is connected in arc sliding groove described in the lower end insertion of gear steel wire and with the gearshift gear ring, the gearshift push button is used to lead to
Crossing the gearshift steel wire drives the gearshift gear ring to move back and forth, and is provided with the outside of the arc sliding groove along described
Rear gear box radially outwardly projecting spacing block set, the spacing block set apical grafting is in the sidepiece of described gearshift steel wire
On, when the lower end of the gearshift steel wire slides back and forth in the arc sliding groove, the sidepiece of the gearshift steel wire
Moved back and forth along the spacing block set.
The spacing block set is arc bump.Convenient gearshift steel wire smoothly front and rear cunning after certain effect power is subject to
It is dynamic.
Push button locking mechanism is provided with the housing, the push button retaining mechanism is used for the gearshift push button
Locked.Further prevent gearshift gear ring off-gear.
Compared with prior art, it is opposite the utility model has the advantage of the push button that in actual use, will shift gears toward pusher
Gearshift pierce tap moves gear gear ring and is moved along and is engaged with two level gear component, realizes three-level deceleration transmission, is at this time one
Tick-over state is kept off, output shaft exports for big torsion, suitable for playing the work such as wooden hole, auger shell hole；The push button that will conversely shift gears is past
It is pushed forward, gearshift pierce tap moves gear gear ring and moves and depart from from two level gear component backward, realizes that double reduction is driven, at this time
For two gear high speed operation states, output shaft exports for small torsion, is bored suitable for objects larger to hardness such as iron plate drillings
Hole works；By setting the spacing block set along the radially outwardly projecting of rear gear box, spacing block set in the outside of arc sliding groove
Apical grafting in gearshift steel wire sidepiece on, when shift gears steel wire lower end slid back and forth in arc sliding groove when, the side for steel wire of shifting gears
Portion is moved back and forth along spacing block set, and spacing block set heads on gearshift steel wire, spacing block set after the completion of gearshift all the time in mobile process
It is engaged with the position-limiting action of arc sliding groove in itself, under punching, locked rotor condition, gearshift gear ring will not take off easily
Gear, adds the service life and security of machine.
Brief description of the drawings
Fig. 1 is the part-structure exploded perspective view of the utility model；
Fig. 2 is the structure diagram of rear gear box and gearshift steel wire in the utility model；
Fig. 3 is the part-structure view one of the utility model；
Fig. 4 is the part-structure view two of the utility model；
Fig. 5 is the overall structure diagram of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one：A kind of brushless electric tool, including housing 1 and the electric machine assembly 11, the output shaft that are arranged in housing 1
2nd, front gear box 3, rear gear box 4 and shift assembly, the both sides of rear gear box 4 are provided with arc sliding groove 41, shift assembly bag
Include gearshift push button 51, gearshift steel wire 52, level-one gear component 53, two level gear component 54 and with two level gear component 54 coordinate
Gearshift gear ring 55, what gearshift push button 51 can move back and forth is arranged on housing 1, and level-one gear component 53 is arranged on front gear box 3
Interior, two level gear component 54 is arranged in rear gear box 4, and the upper end for steel wire 52 of shifting gears is connected with gearshift push button 51, steel wire of shifting gears
It is connected in 52 lower end insertion arc sliding groove 41 and with gearshift gear ring 55, gearshift push button 51 is used to drive by steel wire 52 of shifting gears
Gearshift gear ring 55 moves back and forth, and the outside of arc sliding groove 41 is provided with the limit convex of the radially outwardly projecting along rear gear box 4
Block 42,42 apical grafting of spacing block set on the sidepiece of gearshift steel wire 52, when gearshift steel wire 52 lower end in the arc sliding groove 41 before
After when sliding, the sidepiece of gearshift steel wire 52 is moved back and forth along spacing block set 42.
The gear switching principle of above-mentioned brushless electric tool is：Will gearshift push button 51 toward pusher, opposite gearshift steel wire 52
Drive gearshift gear ring 55 to be moved along and be engaged with two level gear component 54, realize three-level deceleration transmission, it is low for a gear at this time
Fast working status, output shaft 2 export for big torsion, suitable for playing the work such as wooden hole, auger shell hole；The push button 51 that will conversely shift gears is past
It is pushed forward, gearshift steel wire 52 drives gearshift gear ring 55 to move and depart from from two level gear component 54 backward, realizes that double reduction passes
It is dynamic, exported at this time for two gear high speed operation states, output shaft 2 for small torsion, suitable for things larger to hardness such as iron plate drillings
Body carries out boring work.
Embodiment two：Remainder is identical with embodiment one, its difference is that spacing block set 42 is arc bump.
Embodiment three：Remainder is identical with embodiment one, its difference is to be provided with push button locking machine on housing 1
Structure (figure is not shown).
Claims (3)
1. a kind of brushless electric tool, including housing and the electric machine assembly, output shaft, the front gear that are arranged in the housing
Case, rear gear box and shift assembly, the both sides of the rear gear box are provided with arc sliding groove, and the shift assembly includes
Gearshift push button, gearshift steel wire, level-one gear component, two level gear component and the gearshift tooth coordinated with the two level gear component
Circle, what the gearshift push button can move back and forth is arranged on the housing, and the level-one gear component is arranged on described
Front gear box in, the two level gear component is arranged in the rear gear box, the upper end of the gearshift steel wire with
Described gearshift push button connection, in the lower end insertion of the gearshift steel wire arc sliding groove and with the gearshift tooth
Circle connection, the gearshift push button are used to drive the gearshift gear ring to move back and forth by the gearshift steel wire, its feature
It is the spacing block set that the radially outwardly projecting along the rear gear box is provided with the outside of the arc sliding groove, it is described
Spacing block set apical grafting on the sidepiece of described gearshift steel wire, when the lower end of the gearshift steel wire is in the arc sliding
When being slid back and forth in groove, the sidepiece of the gearshift steel wire is moved back and forth along the spacing block set.
2. a kind of brushless electric tool according to claim 1, it is characterised in that the spacing block set is arc bump.
3. a kind of brushless electric tool according to claim 1, it is characterised in that push button lock is provided with the housing
Determine mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628685.3U CN207273154U (en) | 2017-06-01 | 2017-06-01 | A kind of brushless electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628685.3U CN207273154U (en) | 2017-06-01 | 2017-06-01 | A kind of brushless electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207273154U true CN207273154U (en) | 2018-04-27 |
Family
ID=61992674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720628685.3U Active CN207273154U (en) | 2017-06-01 | 2017-06-01 | A kind of brushless electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207273154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020604A (en) * | 2017-06-01 | 2017-08-08 | 宁波汉浦工具有限公司 | A kind of brushless electric tool |
| CN114074312A (en) * | 2020-08-21 | 2022-02-22 | 南京德朔实业有限公司 | Electric tool |
-
2017
- 2017-06-01 CN CN201720628685.3U patent/CN207273154U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020604A (en) * | 2017-06-01 | 2017-08-08 | 宁波汉浦工具有限公司 | A kind of brushless electric tool |
| CN114074312A (en) * | 2020-08-21 | 2022-02-22 | 南京德朔实业有限公司 | Electric tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: Kong Jia Tan Cun and Chen Po Ao Cun, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Nanpu electromechanical Co., Ltd Address before: 315100 Zhejiang Street Village Hengxi town Yinzhou District city of Ningbo Province Patentee before: NINGBO HANPU TOOLS Co.,Ltd. |
|
| TR01 | Transfer of patent right |