CN201301950Y - Speed change gear box for electric tool - Google Patents
Speed change gear box for electric tool Download PDFInfo
- Publication number
- CN201301950Y CN201301950Y CNU2008201860645U CN200820186064U CN201301950Y CN 201301950 Y CN201301950 Y CN 201301950Y CN U2008201860645 U CNU2008201860645 U CN U2008201860645U CN 200820186064 U CN200820186064 U CN 200820186064U CN 201301950 Y CN201301950 Y CN 201301950Y
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- CN
- China
- Prior art keywords
- gear
- carrier
- built
- electric tool
- splined shaft
- 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.)
- Expired - Fee Related
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- 238000003756 stirring Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structure Of Transmissions (AREA)
Abstract
The utility model relates to an electric tool, in particular to a speed change gear box for an electric tool. The utility model has the technical scheme that a back gear box body is connected with a front gear box body; a motor is arranged outside the back gear box body; a spline shaft is arranged in the back gear box body; a section of outer spline slot is arranged on the spline shaft; an output shaft is arranged in the front gear box body; and an output gear is arranged on the output shaft. The utility model is characterized in that the right side of the spline shaft is provided with a combined gear and an input gear, wherein, the input gear is tightly matched with the spline shaft; and the combined gear and the spline shaft are in sliding fit, and can correspondingly rotate. The gear box can be used for outputting different speeds according to different use requirements to bring convenient to users.
Description
Technical field
The utility model relates to a kind of electric tool, specifically a kind of speed-change gear box of electric tool.
Background technique
When reality is used, for the cutting end face that guarantees to be cut timber is smooth, need utilize top gear work usually, utilize higher cutting speed, guarantee that the cutting end face of timber is smooth smooth; When cutting thick timber and cutting steel plate, wish again when bottom gear is worked, so that produce maximum output torque, obtain powerful cutting force.But,, therefore brought very big inconvenience to the user because traditional electric circular saw has only a kind of speed.
Summary of the invention
The purpose of this utility model is the speed-change gear box of a kind of electric tool of design, and this gear-box can be selected output different rotating speed and moment of torsion according to different usage requirements, and the operator is used more easily.
According to the technological scheme that the utility model provides, splined shaft 9 and output shaft 1 are installed in casing; At the fixedly connected input gear 10 of an end of splined shaft 9, the other end be slidingly connected built-up gear 11 and carrier gear 14, built-up gear 11 and 14 of carrier gears be provided for control combination gear 11 and carrier gear 14 mutually from the clutch part that closes, in gear housing, be provided for driving the axially movable clutch 13 of built-up gear 11 along splined shaft 9; Output gear 4 is arranged, described carrier gear 14 and output gear 4 engagements on output shaft 1.
One section external splines is set on splined shaft 9; The inner spline groove that can cooperate with the external splines groove of splined shaft 9 is set in the axis hole of carrier gear 14; Outer surface is provided with the external splines groove on the right side of carrier gear 14, the inner spline groove that can match with the external splines groove of carrier gear 14 the inner left wall setting of built-up gear 11; When built-up gear 11 moved on to right positions, the inner spline groove on the carrier gear 14 cooperated with external splines groove on the splined shaft 9, and power directly passes to output gear 4 through carrier gear 14 by splined shaft 9; When built-up gear 11 moves on to leftward position, inner spline groove on the carrier gear 14 separates with external splines groove on the splined shaft 9, external splines groove on the carrier gear 14 cooperates with the inner spline groove of built-up gear 11, power passes to carrier gear 14 by built-up gear 11, transmits output gear 4 by carrier gear 14 again.
Right side at carrier gear 14 is provided with end face clutch, and the end face clutch that can fit with end face clutch on carrier gear 14 right sides is set in the left side of built-up gear 11.Output terminal at motor 6 is provided with duplex motor gear 18, and described duplex motor gear 18 meshes with built-up gear 11 and input gear 10 simultaneously.On gear housing, be provided for stirring the gear knob 12 of clutch 13.Brake component 3 is set on output shaft 1.Described gear housing comprises front gear casing 17 and backgear casing 8, and described output shaft 1 is installed in the front gear casing 17, and described splined shaft 9 is installed in the backgear casing 8, in the outside of backgear casing 8 motor 6 is installed.
In described clutch part, right side at carrier gear 14 is provided with end face clutch, the end face clutch that can fit with the end face clutch on carrier gear 14 right sides is set in the left side of built-up gear 11, is provided for promoting the Returnning spring 15 that carrier gear 14 moves right in the left side of carrier gear 14.
The utility model has the advantages that: after using structure of the present utility model, can make instrument that big torsion slow-speed of revolution output and high-revolving two kinds of selections are arranged, be applicable to the two-speed gear case that a kind of electric circular saw instrument of processing is used on the unlike material purposes.When top gear work cutting timber, make the smooth surface of cutting, and certain cutting speed is arranged, when bottom gear is worked, can produce maximum output torque, make that when cutting thick timber and cutting steel plate powerful cutting force is arranged.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Embodiment
As shown in the figure: on front gear casing 17, connect backgear casing 8, motor 6 is installed in outside at backgear casing 8, splined shaft 9 is set in backgear casing 8, one section external splines groove is set on splined shaft 9, output shaft 1 is installed in front gear casing 17, output gear 4 is set on output shaft 1, it is characterized in that: built-up gear 11 and input gear 10 are set on the right side of splined shaft 9, described input gear 10 is that close-fitting is fixing with splined shaft 9, the axis hole of built-up gear 11 and splined shaft 9 be Spielpassung can slide relative; Built-up gear 11 can move axially on splined shaft 9, when moving to leftward position, the inner spline groove of built-up gear 11 cooperates with external splines groove on the carrier gear 14, the inner spline groove of carrier gear 14 separates with external splines groove on the splined shaft 9, and the external splines groove on the carrier gear 14 cooperates with the inner spline groove of built-up gear 11; When moving to position, the right side, external splines groove on the inner spline groove of built-up gear 11 and the carrier gear 14 is thrown off, carrier gear 14 is cooperating with external splines on the splined shaft 9 under the effect of spring 15, at this moment imports gear 10 and carrier gear 14 and be the equal of one.
Right side at carrier gear 14 is provided with end face clutch, and the end face clutch that can fit with end face clutch on carrier gear 14 right sides is set in the left side of built-up gear 11; In front gear casing 17, be provided for the clutch 13 of mobile built-up gear 11; When built-up gear 11 moved on to position, the left side, the end face clutch of the end face clutch of carrier gear 14 right sides and built-up gear 11 left sides was fitted.
Output terminal at motor 6 is provided with duplex motor gear 18, and described duplex motor gear 18 meshes with built-up gear 11 and input gear 10 simultaneously.On backgear casing 8, be provided for stirring the gear knob 12 of clutch 13.Brake component 3 is set on output shaft 1.
During work, motor 6 drives duplex motor gear 18 and rotates, duplex motor gear 18 drives input gear 10 and built-up gear 11 rotations on the splined shaft 9 simultaneously, when 12 dozens of gear knobs during at top gear, built-up gear 11 dallies on splined shaft 9, input gear 10 drives splined shaft 9 and rotates, carrier gear 14 is under the effect of preloading spring 15, make the internal spline of carrier gear 14 engage with external splines on the splined shaft 9, make carrier gear 14 rotate and drive output shaft gear 4 work, produce high speed rotating.The input output speed ratio is 5.33: 1
When 12 dozens of gear knobs during at bottom gear, built-up gear 11 direction toward carrier gear 14 under the promotion of clutch 13 moves, and engage with end face clutch on the carrier gear 14 by the end face clutch on the built-up gear 11, splined hole with carrier gear 14 separates with splined shaft 9 simultaneously, make input gear 10 and splined shaft 9 idle running, drive carrier gear 14 by built-up gear 11 and rotate this moment, drive output shaft gear 4 work by carrier gear 14 again, produce low speed rotation, the speed ratio of input output is 12.34: 1.
Claims (8)
1, the speed-change gear box of electric tool is characterized in that: comprise gear housing and be installed on casing interior splined shaft (9) and output shaft (1); At the fixedly connected input gear of an end of splined shaft (9) (10), the other end be slidingly connected built-up gear (11) and carrier gear (14), between built-up gear (11) and carrier gear (14), be provided for control combination gear (11) and carrier gear (14) mutually from the clutch part that closes, in gear housing, be provided for driving the axially movable clutch (13) of built-up gear (11) along splined shaft (9); Output gear (4) is arranged, described carrier gear (14) and output gear (4) engagement on output shaft (1).
2, the speed-change gear box of electric tool as claimed in claim 1 is characterized in that: one section external splines is set on splined shaft (9); The inner spline groove that can cooperate with the external splines groove of splined shaft (9) is set in the axis hole of carrier gear (14); Right side outer surface at carrier gear (14) is provided with the external splines groove, the inner spline groove that can match with the external splines groove of carrier gear (14) the inner left wall setting of built-up gear (11); At built-up gear (11) when moving on to right positions, the inner spline groove on the carrier gear (14) cooperates with external splines groove on the splined shaft (9), and power directly passes to output gear (4) through carrier gear (14) by splined shaft (9); At built-up gear (11) when moving on to leftward position, inner spline groove on the carrier gear (14) separates with external splines groove on the splined shaft (9), external splines groove on the carrier gear (14) cooperates with the inner spline groove of built-up gear (11), power passes to carrier gear (14) by built-up gear (11), transmits output gear (4) by carrier gear (14) again.
3, the speed-change gear box of electric tool as claimed in claim 1, it is characterized in that: the right side at carrier gear (14) is provided with end face clutch, and the end face clutch that can fit with end face clutch on carrier gear (14) right side is set in the left side of built-up gear (11).
4, the speed-change gear box of electric tool as claimed in claim 1 is characterized in that: the output terminal at motor (6) is provided with duplex motor gear (18), and described duplex motor gear (18) meshes with built-up gear (11) and input gear (10) simultaneously.
5, the speed-change gear box of electric tool as claimed in claim 3 is characterized in that: the gear knob (12) that is provided for stirring clutch (13) on gear housing.
6, the speed-change gear box of electric tool as claimed in claim 1 is characterized in that: brake component (3) is set on output shaft (1).
7, the speed-change gear box of electric tool as claimed in claim 1, it is characterized in that: described gear housing comprises front gear casing (17) and backgear casing (8), described output shaft (1) is installed in the front gear casing (17), described splined shaft (9) is installed in the backgear casing (8), in the outside of backgear casing (8) motor (6) is installed.
8, the speed-change gear box of electric tool as claimed in claim 1, it is characterized in that: in described clutch part, right side at carrier gear (14) is provided with end face clutch, the end face clutch that can fit with the end face clutch on carrier gear (14) right side is set in the left side of built-up gear (11), is provided for promoting the Returnning spring (15) that carrier gear (14) moves right in the left side of carrier gear (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201860645U CN201301950Y (en) | 2008-10-14 | 2008-10-14 | Speed change gear box for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201860645U CN201301950Y (en) | 2008-10-14 | 2008-10-14 | Speed change gear box for electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301950Y true CN201301950Y (en) | 2009-09-02 |
Family
ID=41085576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201860645U Expired - Fee Related CN201301950Y (en) | 2008-10-14 | 2008-10-14 | Speed change gear box for electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301950Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744132A (en) * | 2019-11-06 | 2020-02-04 | 台州陆霸机电科技有限公司 | Electric cutting machine |
| CN111823325A (en) * | 2020-06-24 | 2020-10-27 | 张代勇 | Adjustable polygonal wood sawing board equipment |
-
2008
- 2008-10-14 CN CNU2008201860645U patent/CN201301950Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744132A (en) * | 2019-11-06 | 2020-02-04 | 台州陆霸机电科技有限公司 | Electric cutting machine |
| CN110744132B (en) * | 2019-11-06 | 2024-06-07 | 广州亿海餐饮设备有限公司 | Electric cutting machine |
| CN111823325A (en) * | 2020-06-24 | 2020-10-27 | 张代勇 | Adjustable polygonal wood sawing board equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |