CN204711999U - The electrical adjustment torque structure of electric tool - Google Patents
The electrical adjustment torque structure of electric tool Download PDFInfo
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- CN204711999U CN204711999U CN201520290650.4U CN201520290650U CN204711999U CN 204711999 U CN204711999 U CN 204711999U CN 201520290650 U CN201520290650 U CN 201520290650U CN 204711999 U CN204711999 U CN 204711999U
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- electric tool
- tool body
- adjustable ring
- motor
- electrical adjustment
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Abstract
The utility model relates to a kind of electrical adjustment torque structure of electric tool, comprise electric tool body, the motor of output torque is provided with in electric tool body (1), it is characterized in that: also comprise the rotary varistor structure in order to regulation output resistance and the control circuit board containing CPU, the detection input of CPU in the signal output part connection control circuit of described rotary varistor structure, the control output end of described CPU connects the controlled end of motor by drive circuit.Rotate rotary varistor structure with regulation output resistance, by the exportable corresponding speed controling signal of the control circuit board containing CPU, realize the change to motor speed, the change of output torque is realized by the change of motor speed, thus reach the object of torque adjustment, compare with mechanical torque adjustment structure, structure is more compact, manipulates laborsaving convenience.
Description
Technical field
The utility model belongs to the technical field of the torque adjusting device in electric tool, particularly relates to a kind of electrical adjustment torque structure of electric tool.
Background technology
In order to meet the operation of twisting screw and so on, electric tool adds torque adjustment function on the basis of original rotating regulation and control, rotational speed regulation function.The torque adjustment of existing electric tool is the adjustment structure of Purely mechanical, it all needs when torque adjustment by regulating spring pretension, change the slip limit of slip gear, to control the peak torque transmitted, as passed peak torque, the drill bit of electric tool will skid, and prevents screw from exploding screw column.A kind of mechanical torque adjustment structure for electric tool as disclosed in the patent No. Chinese utility model patent " a kind of torque adjustment structure of electric hammer " that is ZL201420518933.5 (notification number is CN204076200U).Owing to relying on frame for movement completely to realize, therefore not only there is complex structure, bulky shortcoming, and need during operation to overcome larger torsion and carry out driving torque head, it is very inconvenient to operate.
Summary of the invention
Technical problem to be solved in the utility model is the electrical adjustment torque structure providing a kind of simple and reasonable, easy to operate electric tool for above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of electrical adjustment torque structure of electric tool, comprise electric tool body, the motor of output torque is provided with in electric tool body, it is characterized in that: also comprise the rotary varistor structure in order to regulation output resistance and the control circuit board containing CPU, the detection input of CPU in the signal output part connection control circuit of described rotary varistor structure, the control output end of described CPU connects the controlled end of motor by drive circuit.
Above-mentioned rotary varistor structure comprises the substrate of the fixed carbon resister being coated with one deck ring-type, all the time the electric conductor contacted with described fixed carbon resister, substrate is fixed in electric tool body, the front end sleeve of electric tool body is provided with revolvable adjustable ring, described electric conductor is fixed on adjustable ring and also can rotates with adjustable ring, and the upper end of adjustable ring manifests the upper end formation confession people driving of electric tool body with the knob driving adjustable ring to rotate.The electric conductor that rotarily drives of adjustable ring rotates, resistance value on electric conductor and substrate between fixed carbon resister changes, utilize potentiometer principle, this rotary varistor structure achieves lower cost and the mechanical signal that adjustable ring rotates is converted to the signal of telecommunication, controlled the rotating speed of motor by the calculating of microprocessor, finally realize the adjustment of moment of torsion.Adjustable ring is hidden in body by this rotary varistor structure in addition, only exposes button portion and drives for people, make whole electric tool outward appearance more succinct.
The arcuate socket that the bar portion that the upper end of above-mentioned electric tool body has knob wears, knob can arcuately hole slippage, the front end face of described adjustable ring has forward to the installation portion of downward-extension, installation position is in the front of substrate, and described electric conductor is arranged on this installation portion.Arcuate socket, to the rotation Constrained position-limiting action of adjustable ring, guarantees that adjustable ring rotates in applicable scope.
The upper end of above-mentioned electric tool body is provided with arc groove, and described arcuate socket is located at the bottom surface of arc groove, and described button portion is placed in this arc groove.Button portion falls in the inner by arc groove, button can not lofty go out outside body.
Above-mentioned electric conductor is electrically conductive elastic sheet, and the face that electric conductor contacts with fixed carbon resister is arcwall face.Electric conductor has certain elasticity, and guarantee that electric conductor and fixed carbon resister contact well all the time, the face that electric conductor contacts with fixed carbon resister is in addition arcwall face, scuffing of mutually swiping both preventing.
Aforesaid substrate is fixed on the outer face of the gearbox of described motor.
The outer face that above-mentioned adjustable ring is set in the gearbox of described motor is positioned at electric tool body, the rear end face of adjustable ring has multiple circumferentially spaced apart location dimples, the top of the gearbox of described motor has boss portion, the front end face of boss portion accommodates place kick, and described place kick and location dimples match.By coordinating of location dimples and place kick, make adjustable ring turn to one when regulating position, have indicative function, adjustable ring is accurately positioned at certain gear, the feel of simultaneously rotating adjustable ring is better.
Compared with prior art, the utility model has the advantage of: rotate rotary varistor structure with regulation output resistance, the change of the resistance value of rotary varistor structure, by the exportable corresponding speed controling signal of the control circuit board containing CPU, realize the change to motor speed, realized the change of output torque by the change of motor speed, thus reach the object of torque adjustment, compare with mechanical torque adjustment structure, structure is more compact, manipulates laborsaving convenience.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the perspective view after the utility model embodiment removes half body fuselage;
Fig. 3 is the three-dimensional exploded view one of rotary varistor structure in the utility model embodiment;
Fig. 4 is the three-dimensional exploded view two of rotary varistor structure in the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in figures 1-4, be a preferred embodiment of the present utility model.
A kind of electrical adjustment torque structure of electric tool, comprise electric tool body 1, the motor 2 of output torque is provided with in electric tool body 1, also comprise the rotary varistor structure in order to regulation output resistance and the control circuit board containing CPU, the detection input of CPU in the signal output part connection control circuit of described rotary varistor structure, the control output end of described CPU connects the controlled end of motor 2 by drive circuit.
Rotary varistor structure comprises the substrate 3 of the fixed carbon resister 31 being coated with one deck ring-type, all the time the electric conductor 4 contacted with fixed carbon resister 31, substrate 3 is fixed in electric tool body 1, the front end sleeve of electric tool body 1 is provided with revolvable adjustable ring 5, electric conductor 4 is fixed on adjustable ring 5 and also can rotates with adjustable ring 5, and the upper end of adjustable ring 5 manifests the upper end formation confession people driving of electric tool body 1 with the knob 51 driving adjustable ring 5 to rotate.
The arcuate socket 11 that the bar portion 511 that the upper end of electric tool body 1 has knob 51 wears, knob 51 can arcuately hole 11 slippage, the front end face of adjustable ring 5 has forward to the installation portion 52 of downward-extension, installation portion 52 is positioned at the front of substrate 3, and electric conductor 4 is arranged on this installation portion 52.The upper end of electric tool body 1 is provided with arc groove 12, and arcuate socket 11 is located at the bottom surface of arc groove 12, and button portion 51 is placed in this arc groove 12.Electric conductor 4 is electrically conductive elastic sheet, and the face that electric conductor 4 contacts with fixed carbon resister 31 is arcwall face 41.
Substrate 3 is fixed by screws on the outer face of gearbox 6 of motor 2.The outer face regulating ring set 5 to be located at the gearbox 6 of motor 2 is positioned at electric tool body 1, the rear end face of adjustable ring 5 has multiple circumferentially spaced apart location dimples 53, the top of the gearbox 6 of motor 2 has boss portion 61, the front end face of boss portion 61 accommodates place kick 7, and place kick 7 and location dimples 53 match.
The electric conductor 4 that rotarily drives of adjustable ring 5 rotates, resistance value on electric conductor 4 and substrate 3 between fixed carbon resister 31 changes, utilize potentiometer principle, by the exportable corresponding speed controling signal of the control circuit board containing CPU, realize the change to motor 2 rotating speed, realized the change of output torque by the change of motor 2 rotating speed.
Although more than describe in detail the preferred embodiments of the present invention, should be expressly understood that, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the electrical adjustment torque structure of an electric tool, comprise electric tool body (1), the motor (2) of output torque is provided with in electric tool body (1), it is characterized in that: also comprise the rotary varistor structure in order to regulation output resistance and the control circuit board containing CPU, the detection input of CPU in the signal output part connection control circuit of described rotary varistor structure, the control output end of described CPU connects the controlled end of motor (2) by drive circuit.
2. the electrical adjustment torque structure of electric tool according to claim 1, it is characterized in that: described rotary varistor structure comprises the substrate (3) of the fixed carbon resister (31) being coated with one deck ring-type, all the time the electric conductor (4) contacted with described fixed carbon resister (31), described substrate (3) is fixed in electric tool body (1), the front end sleeve of electric tool body (1) is provided with revolvable adjustable ring (5), described electric conductor (4) is fixed on adjustable ring (5) and above also can rotates with adjustable ring (5), the upper end of adjustable ring (5) manifests the upper end formation confession people driving of electric tool body (1) with the knob (51) driving adjustable ring (5) to rotate.
3. the electrical adjustment torque structure of electric tool according to claim 2, it is characterized in that: the arcuate socket (11) that the bar portion (511) that the upper end of described electric tool body (1) has knob (51) wears, knob (51) can arcuately hole (11) slippage, the front end face of described adjustable ring (5) have forward to the installation portion (52) of downward-extension, installation portion (52) is positioned at the front of substrate (3), and described electric conductor (4) is arranged on this installation portion (52).
4. the electrical adjustment torque structure of electric tool according to claim 3, it is characterized in that: the upper end of described electric tool body (1) is provided with arc groove (12), described arcuate socket (11) is located at the bottom surface of arc groove (12), and described knob (51) is placed in this arc groove (12).
5. the electrical adjustment torque structure of electric tool according to claim 3, it is characterized in that: described electric conductor (4) is electrically conductive elastic sheet, the face that electric conductor (4) contacts with fixed carbon resister (31) is arcwall face (41).
6. the electrical adjustment torque structure of electric tool according to claim 2, is characterized in that: described substrate (3) is fixed on the outer face of gearbox (6) of described motor (2).
7. the electrical adjustment torque structure of electric tool according to claim 2, it is characterized in that: the outer face that described adjustable ring (5) is set in the gearbox (6) of described motor (2) is positioned at electric tool body (1), the rear end face of adjustable ring (5) has multiple circumferentially spaced apart location dimples (53), the top of the gearbox (6) of described motor (2) has boss portion (61), the front end face of boss portion (61) accommodates place kick (7), described place kick (7) and location dimples (53) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290650.4U CN204711999U (en) | 2015-05-07 | 2015-05-07 | The electrical adjustment torque structure of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290650.4U CN204711999U (en) | 2015-05-07 | 2015-05-07 | The electrical adjustment torque structure of electric tool |
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| Publication Number | Publication Date |
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| CN204711999U true CN204711999U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520290650.4U Active CN204711999U (en) | 2015-05-07 | 2015-05-07 | The electrical adjustment torque structure of electric tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227182A (en) * | 2015-06-02 | 2016-12-14 | Ls 产电株式会社 | The output adjustment device of analog output module |
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2015
- 2015-05-07 CN CN201520290650.4U patent/CN204711999U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227182A (en) * | 2015-06-02 | 2016-12-14 | Ls 产电株式会社 | The output adjustment device of analog output module |
| US10120362B2 (en) | 2015-06-02 | 2018-11-06 | Lsis Co., Ltd. | Output adjustment device of analog output module |
| CN106227182B (en) * | 2015-06-02 | 2021-06-25 | Ls 产电株式会社 | Output regulator for analog output module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |