CN205298424U - Double speed electric tool of rotational speed automatic switch -over - Google Patents
Double speed electric tool of rotational speed automatic switch -over Download PDFInfo
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- CN205298424U CN205298424U CN201620073775.6U CN201620073775U CN205298424U CN 205298424 U CN205298424 U CN 205298424U CN 201620073775 U CN201620073775 U CN 201620073775U CN 205298424 U CN205298424 U CN 205298424U
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Abstract
The utility model discloses a double speed electric tool of rotational speed automatic switch -over, including box (5), middle lid (16), one -level gear (20), second -level gear shaft (21), second grade gear (22), transition axle (14), low -gear (13), high -speed gear (6), output shaft (8), second -level gear shaft (21) set up at box (5) with middle approximately between (16), the both sides in second -level gear shaft (21) are fixed in one -level gear (20) and second grade gear (22) correspondence, output shaft (8) set up on same axis with transition axle (14), low -gear (13) set up on transition axle (14), high -speed gear (6) set up on output shaft (8), be connected through clutching mechanism between low -gear (13) and the high -speed gear (6), motor output shaft (18) and one -level gear (20) meshing, low -gear (13) and second -level gear shaft (21) meshing, high -speed gear (6) and second grade gear (22) meshing. After adopting this structure, have advantages such as compact structure, simple to operate, function conversion are fast, excellent in use effect, a tractor serves several purposes.
Description
Technical field
The utility model relates to a kind of hand electric instrument, particularly a kind of can with different operating head with the use of the double-speed electric tool that automatically switches of rotating speed.
Background technology
It is well known that the power tool of different purposes needs different rotating speeds and different moments of torsion, current domestic and international all power tools change power tool rotating speed and is all realized by speed control switch adjustment instrument input voltage. This kind of mode equals the decline of power tool power input owing to power tool operating voltage reduces, and the moment of torsion of power tool also declines to a great extent simultaneously, and the machine that is not therefore suitable for is multiplex. For the deficiency of current this respect, everybody wishes that the power input of a kind of Novel electric tool power tool when changing power tool rotating speed does not change, and preferably can automatically identify that different operating head changes the rotating speed of power tool by installation mode, guarantee to accomplish the safe handling of power tool, thus make this power tool can reach the multiplex object of a machine. For this reason, many manufacturers and scientific research institutions develop and develop, but not yet have relatively satisfied product to come out so far.
Summary of the invention
In order to overcome the problems referred to above that existing power tool exists, the double-speed electric tool that the rotating speed that the purpose of this utility model is to provide a kind of convenience simple and reasonable, quick for installation, power and energy is fast, result of use good, a machine is multiplex switches automatically.
The utility model solves the problems of the technologies described above the technical scheme adopted, it comprises casing, middle cover, one-stage gear, secondary gear wheel shaft, secondary gear, transition axis, low speed gear, high-speed gear, output shaft, described secondary gear wheel shaft is arranged between casing and middle cover rotationally, one-stage gear and secondary gear correspondence are fixed on the both sides of secondary gear wheel shaft, transition axis is arranged in middle cover rotationally, output shaft is not only rotatable but also can axially movably be arranged on casing by the first bearing, output shaft and transition axis are arranged on the same axis, low speed gear is arranged on transition axis, high-speed gear is arranged on output shaft rotationally, it is connected by engaging and disengaging gear between low speed gear with high-speed gear, motor output shaft engages with one-stage gear, low speed gear engages with secondary gear wheel shaft, high-speed gear engages with secondary gear.
The further scheme of the utility model, described engaging and disengaging gear comprises the output shaft clutch boss being arranged on output shaft, the gears to engage and disengage boss being arranged on low speed gear, first spring, 2nd spring, ball, output shaft clutch boss is provided with clutch card block, gears to engage and disengage boss is provided with the clutch card groove matched with clutch card block, first spring is set on the output shaft between high-speed gear and output shaft clutch boss, 2nd spring and ball are arranged in the centre hole of output shaft, transition axis is not only rotatable but also can axially movably be arranged in the centre hole of output shaft by the 2nd bearing, end face and the ball of transition axis are inconsistent.
The further scheme of the utility model, the elastic force of the first described spring is greater than the elastic force of the 2nd spring.
The further scheme of the utility model, the output terminal of described output shaft is arranged with axle sleeve and is located by packing ring and jump ring, and the inner face of axle sleeve matches with the first bearing inner ring.
The further scheme of the utility model, the clamping boss that described high-speed gear is provided with the first bearing inner ring matches.
After adopting said structure, compared with prior art have the following advantages and effect: one is ensureing under the prerequisite that output rating is constant, different work heads is installed and can export different rotating speeds, export lower rotating speed and bigger moment of torsion when installing drill chuck or polishing wheel, export higher rotating speed and less moment of torsion when installing grinding wheel or cutting blade. Two is automatically identify work head by installation mode and export different rotating speeds, it is ensured that power tool use safety. Three is owing to a machine both can use as electric drill and polishing machine, can use as electric angle grinder and cutting machine again, thus realize the object that a machine is multiplex, and the first watch that works changes simple and convenient.
Accompanying drawing explanation
Fig. 1 is decomposition structural representation of the present utility model.
Fig. 2 is fit structure schematic diagram of the present utility model.
Fig. 3 is that the utility model is as fit structure schematic diagram during electric drill.
Fig. 4 be the utility model as engaging and disengaging gear during electric drill in conjunction with schematic diagram.
Fig. 5 is that the utility model is as fit structure schematic diagram during electric angle grinder.
Fig. 6 is that the utility model is as engaging and disengaging gear separation schematic diagram during electric angle grinder.
Fig. 7 is that the utility model is as fit structure schematic diagram during polishing.
Wherein, 1 jump ring, 2 packing rings, 3 axle sleeves, 4 first bearings, 5 casings, 6 high-speed gears, 7 first springs, 8 output shafts, 9 the 2nd springs, 10 balls, 11 the 2nd bearings, 12 jump rings, 13 low speed gears, 14 transition axises, 15 the 3rd bearings, 16 middle cover, 17 the 4th bearings, 18 motor output shafts, 19 the 5th bearings, 20 one-stage gear, 21 secondary gear wheel shafts, 22 secondary gears, 23 jump rings, 24 the 6th bearings, 25 output shaft clutch boss, 26 clutch card blocks, 27 gears to engage and disengage boss, 28 clutch card grooves, 29 drill chucks, 30 grinding wheels, 31 clip plates, 32 outer plates, 33 shield caps, 34 polishing wheels.
Embodiment
Shown in Fig. 1 and Fig. 2, for the specific embodiments of the double-speed electric tool that a kind of rotating speed of the utility model switches automatically, it comprises casing 5, middle cover 16, one-stage gear 20, secondary gear wheel shaft 21, secondary gear 22, transition axis 14, low speed gear 13, high-speed gear 6, output shaft 8, described secondary gear wheel shaft 21 by the 6th bearing 24 and the 5th bearing rotationally correspondence be arranged between casing 5 and middle cover 16, one-stage gear 20 and secondary gear 22 correspondence are fixed on the both sides of secondary gear wheel shaft 21 and are located by jump ring 23, transition axis 14 is arranged in middle cover 16 by the 3rd bearing 15 rotationally, output shaft 8 is not only rotatable but also can axially movably be arranged on casing 5 by the first bearing 4, output shaft 8 and transition axis 14 arrange on the same axis, low speed gear 13 both can rotate can also fix be arranged on transition axis 14 and located by jump ring 12, high-speed gear 6 is arranged on output shaft 8 rotationally, it is connected by engaging and disengaging gear between low speed gear 13 with high-speed gear 6, motor output shaft 18 is arranged in middle cover 16 by the 4th bearing rotationally, motor output shaft 18 engages with one-stage gear 20, low speed gear 13 engages with the gear shaft in the middle of secondary gear wheel shaft 21, high-speed gear 6 engages with secondary gear 22.
For also realizing at a high speed and the conversion of low speed, described engaging and disengaging gear comprises the output shaft clutch boss 25 being arranged on output shaft 8, the gears to engage and disengage boss 27 being arranged on low speed gear 13, first spring 7, 2nd spring 9, ball 10, output shaft clutch boss 25 is provided with clutch card block 26, gears to engage and disengage boss 27 is provided with the clutch card groove 28 matched with clutch card block 26, first spring 7 is set on the output shaft 8 between high-speed gear 6 and output shaft clutch boss 25, 2nd spring 9 and ball 10 are arranged in the centre hole of output shaft 8, transition axis 14 is not only rotatable but also can axially movably be arranged in the centre hole of output shaft 8 by the 2nd bearing 11, end face and the ball 10 of transition axis 14 are inconsistent. in order to ensure that high low speed is changed, the elastic force of the first described spring 7 is greater than the elastic force of the 2nd spring 9.
In order to practical function conversion, the output terminal of described output shaft 8 is arranged with axle sleeve 3 and is located by packing ring 2 and jump ring 1, and the inner face of axle sleeve 3 matches with the first bearing 4 inner ring. The clamping boss that described high-speed gear 6 is provided with the first bearing 4 inner ring matches.
Fig. 3 be the utility model as fit structure schematic diagram during electric drill, the screw thread of output shaft 8 is fixed drill chuck 29. during work, motor output shaft 18 drives secondary gear wheel shaft 21 and secondary gear 22 to rotate by one-stage gear 20, secondary gear wheel shaft 21 drives low speed gear 13 to rotate, secondary gear 22 drives high-speed gear 6 to rotate, owing to the elastic force of the first spring 7 is greater than the elastic force of the 2nd spring 9, under the elastic force effect of the first spring 7, output shaft 8 moves axially and the clutch card groove 28 that makes the clutch card block 26 on output shaft clutch boss 25 on gears to engage and disengage boss 27 is combined, as shown in Figure 4, output shaft 18 and low speed gear 13 are connected as a single entity, again owing to high-speed gear 6 is arranged on output shaft 8 rotationally, so high-speed gear 6 relative output shaft 18 under secondary gear 22 drives dallies, and low speed gear 13 drives output shaft 18 to rotate, output shaft 18 drives drill chuck 29 low speed rotation to work, thus realize the function of electric drill.
Fig. 5 is that the utility model is as fit structure schematic diagram during electric angle grinder, casing 5 is installed shield cap 33, clip plate 31 on output shaft 8 overlaps, clip plate 31 can only move axially can not rotate relative to output shaft 8, put grinding wheel 30 again, then it is arranged on output shaft 8 screw thread with outer plate 32, in outer plate 32 screwing operations, owing to clip plate 31 is against on axle sleeve 3, output shaft 8 produces to move axially after the elastic force overcoming the first spring 7 and drives high-speed gear 6 to move axially by output shaft clutch boss 25, when outer plate 32 clamps grinding wheel 30 with clip plate 31, clip plate 31 and axle sleeve 3 clamp the first bearing 4 inner ring with high-speed gear 6 and output shaft clutch boss 25 simultaneously and become to be integrated. clutch card block 26 on now output shaft clutch boss 25 is separated with the clutch card groove 28 on gears to engage and disengage boss 27, as shown in Figure 6. during work, motor output shaft 18 drives secondary gear wheel shaft 21 and secondary gear 22 to rotate by one-stage gear 20, secondary gear wheel shaft 21 drives low speed gear 13 to dally, secondary gear 22 drives high-speed gear 6 to rotate, high-speed gear 6 drives output shaft 18 to rotate, output shaft 18 drives grinding wheel 30 high speed rotating to work, thus realizes the function of electric angle grinder.
Structure when structure when the utility model uses as cutting machine function uses as electric angle grinder function with Fig. 5 with Fig. 6 is identical, no longer repeats at this.
Fig. 7 be the utility model as fit structure schematic diagram during polishing, identical when its principle of work uses as electric drill function with Fig. 3 with Fig. 4, now do not repeat at this.
The above; just an embodiment of the present utility model, not makes any restriction in form to the utility model, is not departing from the technical solution of the utility model basis; done simple modification, equivalent variations or modification, all fall into protection domain of the present utility model.
Claims (5)
1. the double-speed electric tool that a rotating speed switches automatically, it is characterized in that: comprise casing (5), middle cover (16), one-stage gear (20), secondary gear wheel shaft (21), secondary gear (22), transition axis (14), low speed gear (13), high-speed gear (6), output shaft (8), described secondary gear wheel shaft (21) is arranged between casing (5) and middle cover (16) rotationally, one-stage gear (20) and secondary gear (22) correspondence are fixed on the both sides of secondary gear wheel shaft (21), transition axis (14) is arranged in middle cover (16) rotationally, output shaft (8) is not only rotatable but also can axially movably be arranged on casing (5) by the first bearing (4), output shaft (8) is arranged on the same axis with transition axis (14), low speed gear (13) is arranged on transition axis (14), high-speed gear (6) is arranged on output shaft (8) rotationally, it is connected by engaging and disengaging gear between low speed gear (13) with high-speed gear (6), motor output shaft (18) engages with one-stage gear (20), low speed gear (13) engages with secondary gear wheel shaft (21), high-speed gear (6) engages with secondary gear (22).
2. the double-speed electric tool that rotating speed according to claim 1 switches automatically, it is characterized in that: described engaging and disengaging gear comprises output shaft clutch boss (25) being arranged on output shaft (8), the gears to engage and disengage boss (27) being arranged on low speed gear (13), first spring (7), 2nd spring (9), ball (10), output shaft clutch boss (25) is provided with clutch card block (26), gears to engage and disengage boss (27) is provided with clutch card groove (28) matched with clutch card block (26), first spring (7) is set on the output shaft (8) between high-speed gear (6) and output shaft clutch boss (25), 2nd spring (9) and ball (10) are arranged in the centre hole of output shaft (8), transition axis (14) is not only rotatable but also can axially movably be arranged in the centre hole of output shaft (8) by the 2nd bearing (11), end face and the ball (10) of transition axis (14) are inconsistent.
3. the double-speed electric tool that rotating speed according to claim 2 switches automatically, is characterized in that: the elastic force of described the first spring (7) is greater than the elastic force of the 2nd spring (9).
4. the double-speed electric tool that rotating speed according to claim 3 switches automatically, it is characterized in that: the output terminal of described output shaft (8) is arranged with axle sleeve (3) and by packing ring (2) and jump ring (1) location, the inner face of axle sleeve (3) matches with the first bearing (4) inner ring.
5. the double-speed electric tool that rotating speed according to claim 4 switches automatically, is characterized in that: the described clamping boss that high-speed gear (6) is provided with the first bearing (4) inner ring matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620073775.6U CN205298424U (en) | 2016-01-26 | 2016-01-26 | Double speed electric tool of rotational speed automatic switch -over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620073775.6U CN205298424U (en) | 2016-01-26 | 2016-01-26 | Double speed electric tool of rotational speed automatic switch -over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298424U true CN205298424U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620073775.6U Active CN205298424U (en) | 2016-01-26 | 2016-01-26 | Double speed electric tool of rotational speed automatic switch -over |
Country Status (1)
| Country | Link |
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| CN (1) | CN205298424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422752A (en) * | 2016-01-26 | 2016-03-23 | 正阳实业投资有限公司 | Double-speed electric tool capable of automatically switching rotating speed |
| CN108223758A (en) * | 2018-01-23 | 2018-06-29 | 浙江大邦电动工具有限公司 | Clutch differential mechanism |
-
2016
- 2016-01-26 CN CN201620073775.6U patent/CN205298424U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422752A (en) * | 2016-01-26 | 2016-03-23 | 正阳实业投资有限公司 | Double-speed electric tool capable of automatically switching rotating speed |
| CN105422752B (en) * | 2016-01-26 | 2018-05-01 | 正阳实业投资有限公司 | The double-speed electric tool that rotating speed automatically switches |
| CN108223758A (en) * | 2018-01-23 | 2018-06-29 | 浙江大邦电动工具有限公司 | Clutch differential mechanism |
| CN108223758B (en) * | 2018-01-23 | 2023-09-19 | 浙江大邦电动工具有限公司 | Clutch differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 558, the Great Wall East Avenue, the Great Wall Economic Development Zone, Jinhua, Zhejiang Patentee after: Polytron Technologies Inc in Zhengyang Address before: 321300 Zhengyang Industrial Investment Co., Ltd., the Great Wall East Avenue, Yongkang, Zhejiang, China, Jinhua Province, No. 558 Patentee before: Yongkang Zhengda Industrial Co., Ltd. |
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| CP03 | Change of name, title or address |