CN101577520A - Operating system for portable direct current electric tool - Google Patents
Operating system for portable direct current electric tool Download PDFInfo
- Publication number
- CN101577520A CN101577520A CNA2009103035957A CN200910303595A CN101577520A CN 101577520 A CN101577520 A CN 101577520A CN A2009103035957 A CNA2009103035957 A CN A2009103035957A CN 200910303595 A CN200910303595 A CN 200910303595A CN 101577520 A CN101577520 A CN 101577520A
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- direct current
- magnetic stripe
- ball nut
- current electric
- electric tool
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Abstract
The invention provides an operating system for a portable direct current (DC) electric tool, which comprises an operating handle, a magnetic strip, a Hall sensor, a variable-frequency brushless DC motor and a ball screw nut/rod pair, wherein, the ball screw nut/rod pair comprises a driving screw rod and a ball screw nut sleeved on a driving screw rod; the driving screw rod is connected with the output terminal of the variable-frequency brushless DC motor; the upper end of the operating handle is hinged to the ball screw nut, and the lower end thereof is linked up with the magnetic strip mounted on the ball screw nut; and the Hall sensor is located at one side of the magnetic strip and used for detecting the motion signal of the magnetic strip and converting the motion signal thereof into the control signal transmitted to the variable-frequency brushless DC motor. The operating system for a portable direct current electric tool in the invention has the advantages of simple and compact structure, simple operation, good application effect, wide applicable range and high control accuracy and is capable of greatly extending the duration of the DC electric tool.
Description
Technical field
The present invention is mainly concerned with the direct current electric power tools field, refers in particular to a kind of operating system that is used for portable direct current electric tool.
Background technology
Along with various direct current electric power tools with difference in functionality are continually developed, used, bring great convenience to people's work really, also improved people's work efficient widely, brought opportunity also for simultaneously applying of direct current electric power tools.In the existing direct current electric power tools structure, after the direct trigger action of the operating personnel system, the drive motors of direct current electric power tools promptly produces actuating force, and it is fulfiled assignment.But, has only the point type control of triggering between the operating system of this structure and the drive motors, can not come the actuating force of drive motors is realized accurately control according to operating personnel's strength size, and each drive motors is all exported with maximum power, big lossy energy, reduced the flying power of storage battery in the direct current electric power tools.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical problem that prior art exists, the invention provides a kind of simple and compact for structure, easy and simple to handle, result of use is good, applied widely, control the accuracy height, can prolong the direct current electric power tools operating system that is used for portable direct current electric tool in cruising time greatly.
For solving the problems of the technologies described above, the present invention by the following technical solutions.
A kind of operating system that is used for portable direct current electric tool, it is characterized in that: it comprises operating grip, magnetic stripe, Hall element, frequency conversion brushless direct current machine and ball nut screw pair, described ball nut screw pair comprises drive lead screw and the ball nut that is sheathed on the drive lead screw, described drive lead screw links to each other with the output of frequency conversion brushless direct current machine, the upper end of described operating grip is articulated on the ball nut, the side that the lower end of operating grip and the magnetic stripe interlock that is installed on the ball nut, described Hall element are positioned at magnetic stripe is used for detecting the movable signal of magnetic stripe and this magnetic stripe movable signal is converted to and flows to frequency conversion brushless control of DC signal.
As a further improvement on the present invention:
Described ball nut links to each other with the work actuator of direct current electric power tools by kinematic link.
One end of described magnetic stripe links to each other with operating grip, and the other end links to each other with back-moving spring.
Compared with prior art, advantage of the present invention just is: the present invention is used for the operating system of portable direct current electric tool, its have simple and compact for structure, easy and simple to handle, result of use is good, applied widely, control the accuracy advantages of higher.After the present invention uses, can make the controlling directly of operating personnel, accurately corresponding with driving mechanism, improve that it is handling; Simultaneously, do not need the each work of motor all to be in the state of maximum output, good energy saving property has prolonged cruising time of direct current electric power tools greatly.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present invention;
Fig. 2 is a plan structure schematic diagram of the present invention;
Fig. 3 is the structural representation that the present invention is applied to specific embodiment in electronic the cutting.
Marginal data
1, operating grip; 2, magnetic stripe; 3, Hall element; 4, frequency conversion brushless direct current machine; 5, ball nut screw pair; 501, drive lead screw; 502, ball nut; 6, kinematic link; 7, back-moving spring; 8, electric shear tool; 9, planetary transmission.
Embodiment
Below with reference to specific embodiment and Figure of description the present invention is described in further details.
As depicted in figs. 1 and 2, the present invention is used for the operating system of portable direct current electric tool, it comprises operating grip 1, magnetic stripe 2, Hall element 3, frequency conversion brushless direct current machine 4 and ball nut screw pair 5, ball nut screw pair 5 comprises drive lead screw 501 and the ball nut 502 that is sheathed on the drive lead screw 501, be rolling friction between ball nut 502 and the drive lead screw 501, greatly reduce the energy loss in the transmission work, can guarantee the operate as normal of actuator in the direct current electric power tools.Drive lead screw 501 links to each other with the output of frequency conversion brushless direct current machine 4 by planetary transmission 9, ball nut 502 links to each other with the work actuator of direct current electric power tools by kinematic link 6, driving underdrive screw mandrel 501 at frequency conversion brushless direct current machine 4 rotates, do forward and backward motion by the ball nut 502 that threaded engagement is installed on the drive lead screw 501, and then drive the work actuator of direct current electric power tools by kinematic link 6.The upper end of operating grip 1 is articulated on the ball nut 502, operating personnel by depressing, operating grip 1 can rotate around pin joint, and the lower end of operating grip 1 is sleeved on the ball nut 502 and can moves with respect to ball nut 502 with magnetic stripe 2 interlocks that are installed on the ball nut 502, magnetic stripe 2.One end of magnetic stripe 2 links to each other with operating grip 1, and the other end links to each other with back-moving spring 7.Magnetic stripe 2 can adopt conventional NS permanent magnet, and 3 of Hall elements are the surface-mounted integrated circuit that comprises Hall element.Hall element 3 can be installed in any side around the magnetic stripe 2, and Hall element 3 top that is positioned at magnetic stripe 2 is used for detecting moving of magnetic stripe 2 and with the mobile control signal that flows to frequency conversion brushless direct current machine 4 that converts to of this magnetic stripe 2 in the present embodiment.Referring to Fig. 3, be used for electronic cutting with the present invention and be that example, kinematic link 6 are used for directly driving electric shear tool 8, finish the open and close of electric shear tool 8.When doing under the effect of operating grip 1 at pressing force when rotating counterclockwise, be positioned at the magnetic stripe 2 generation motion to the right thereupon of operating grip 1 one ends, back-moving spring 7 compresses the generation restoring force gradually, Hall element 3 detects the displacement of magnetic stripe 2 in real time simultaneously, and the generation change in voltage corresponding with this displacement, at last this change in voltage is sent to frequency conversion brushless direct current machine 4 to finish control, the direction of rotation and the level of torque of the change in voltage decision frequency conversion brushless direct current machine 4 that Hall element 3 is produced to frequency conversion brushless direct current machine 4.At this moment, after frequency conversion brushless direct current machine 4 receives control signal, output shaft rotates, the drive lead screw 501 that links to each other with output shaft drives ball nut 502 toward moving right, 6 motions of pulling kinematic link, thereby the work actuator of direct current electric power tools is fulfiled assignment, promptly drive 8 rotations of electric shear tool and finish closure.In this process, the motion amplitude of operating grip 1, size are corresponding fully with the driving of frequency conversion brushless direct current machine 4, can make controlling of operating personnel more accurate, and it is minimum that the loss of energy is reduced to, the cruising time of prolongation direct current electric power tools.After operating personnel withdraw pressing force, the restoring force of back-moving spring 7 acts on magnetic stripe 2 and the operating grip 1, operating grip 1 turns clockwise, moving of magnetic stripe 2 will make Hall element 3 produce a corresponding with it control signal, the output shaft of frequency conversion brushless direct current machine 4 will be to backward rotation under the effect of this control signal simultaneously, drive ball nut 502 toward moving left, promote kinematic link 6 motion returns, the work actuator of direct current electric power tools is resetted.In specific embodiment, also can make Hall element 3 directly according to the change in voltage of the mobile generation 0～5V of magnetic stripe 2, the rotating speed that can set 2.5V frequency conversion brushless direct current machine 4 is that 0,0～2.5V is 4 counter-rotatings of frequency conversion brushless direct current machine, and 2.5～5V is that frequency conversion brushless direct current machine 4 is just changeing.
The above only is a preferred implementation of the present invention, and protection scope of the present invention also not only is confined to the foregoing description, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the principle of the invention prerequisite, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. operating system that is used for portable direct current electric tool, it is characterized in that: it comprises operating grip (1), magnetic stripe (2), Hall element (3), frequency conversion brushless direct current machine (4) and ball nut screw pair (5), described ball nut screw pair (5) comprises drive lead screw (501) and is sheathed on ball nut (502) on the drive lead screw (501), described drive lead screw (501) links to each other with the output of frequency conversion brushless direct current machine (4), the upper end of described operating grip (1) is articulated on the ball nut (502), the side that the lower end of operating grip (1) and magnetic stripe (2) interlock that is installed on the ball nut (502), described Hall element (3) are positioned at magnetic stripe (2) is used for detecting the movable signal of magnetic stripe (2) and converting this magnetic stripe (2) movable signal to flow to frequency conversion brushless direct current machine (4) control signal.
2. the operating system that is used for portable direct current electric tool according to claim 1 is characterized in that: described ball nut (502) links to each other with the work actuator of direct current electric power tools by kinematic link (6).
3. the operating system that is used for portable direct current electric tool according to claim 1 and 2 is characterized in that: an end of described magnetic stripe (2) links to each other with operating grip (1), and the other end links to each other with back-moving spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103035957A CN101577520A (en) | 2009-06-24 | 2009-06-24 | Operating system for portable direct current electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103035957A CN101577520A (en) | 2009-06-24 | 2009-06-24 | Operating system for portable direct current electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101577520A true CN101577520A (en) | 2009-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009103035957A Pending CN101577520A (en) | 2009-06-24 | 2009-06-24 | Operating system for portable direct current electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577520A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071759A (en) * | 2019-12-30 | 2020-04-28 | 广东利元亨智能装备股份有限公司 | Power-assisted adjusting method and device and controller |
| CN114502329A (en) * | 2019-11-14 | 2022-05-13 | 喜利得股份公司 | Handle apparatus for power tool |
-
2009
- 2009-06-24 CN CNA2009103035957A patent/CN101577520A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502329A (en) * | 2019-11-14 | 2022-05-13 | 喜利得股份公司 | Handle apparatus for power tool |
| CN111071759A (en) * | 2019-12-30 | 2020-04-28 | 广东利元亨智能装备股份有限公司 | Power-assisted adjusting method and device and controller |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091111 |