CN102632483B - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN102632483B CN102632483B CN201110039845.8A CN201110039845A CN102632483B CN 102632483 B CN102632483 B CN 102632483B CN 201110039845 A CN201110039845 A CN 201110039845A CN 102632483 B CN102632483 B CN 102632483B
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- CN
- China
- Prior art keywords
- casing
- planetary gear
- gear ring
- speed reducing
- reducing mechanism
- 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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Abstract
The invention provides a kind of electric tool, comprise: casing, be placed in the motor in casing and planetary gear speed reducing mechanism, planetary gear speed reducing mechanism has centre wheel, planetary gear, planet carrier and gear ring, wherein: planetary gear speed reducing mechanism not between be separated with gear box casing and be directly placed in described casing.The radial dimension of holding area can be reduced significantly, strengthen the gripping comfort of operator, more meet human engineering; Save traditional gearhousing, save a part cost-saving; Simplify structure, be convenient to assembling, improve production efficiency; The size of complete machine and the weight of complete machine can be reduced, be more conducive to operation and carry.
Description
Technical field
The present invention relates to a kind of electric tool, particularly relate to a kind of reducing gear of electric tool.
Background technology
Field of power tools, particularly there is the impact wrench of impact function, percussion drill etc., gear reduction is placed in gear-box under normal circumstances, particularly concerning planetary gear speed reducing mechanism, there is not yet not with gear box casing, but, because gear box casing can occupy certain volume in casing, particularly gear box casing is placed separately outside gear ring, the diameter at this place can be made to become large, time the holding area of fuselage is just positioned at for those gearbox speed reduction mechanisms, the circumferential size of holding area will certainly be increased, the discomfort of gripping is caused when operation to operator, do not meet human engineering, and, if gearbox speed reduction mechanism run up there is noise and strike note time, not changing under gear parameter and assembling mode, be difficult to improve.
Summary of the invention
The present invention is directed to the defect of above-mentioned prior art, a kind of electric tool is provided, the radial dimension of holding area can be reduced significantly, strengthen the gripping comfort of operator, meet human engineering.
A kind of electric tool, comprise: casing, be placed in the motor in casing and planetary gear speed reducing mechanism, planetary gear speed reducing mechanism has centre wheel, planetary gear, planet carrier and gear ring, wherein: planetary gear speed reducing mechanism not between be separated with gear box casing and be directly placed in described casing.
The further order of the present invention is to provide the electric tool of the reducing gear with low noise and strike note when operation, and the outer peripheral face of the gear ring of planetary gear speed reducing mechanism and the medial surface of casing are directly corresponding or be separated with flexible material.
Further, flexible material is flexible glue or sponge or rubber.
Particularly advantageously, gear ring can not circumference be rotatably fixed in casing by a bracket, and bracket and gear ring are respectively equipped with locking portion on adjacent end face.
Further, locking portion is configured to can mutually adaptive double wedge and groove, and double wedge is arranged on bracket and gear ring on one of them, groove be arranged on bracket and gear ring one of other on.
Further, bracket is supported on the rotary shaft by the rotating shaft coaxle with motor, and bracket is provided with the boss that can position in the radial direction of the axis perpendicular to rotating shaft gear ring with the inner peripheral surface adaptation of gear ring.
Further, bracket has the outer peripheral face concordant with the outer peripheral face of gear ring.
A preferred embodiment is: planetary gear speed reducing mechanism be arranged in casing with corresponding section, holding area.
Further, casing front support has working head, the Y of working head and the Y substantial orthogonality of holding area, be also provided with the output can transmitting planetary gear speed reducing mechanism in casing and change into the rotary impact assembly and vertical duction mechanism that rotate the impact of working head.
By adopting above technical scheme, the present invention can realize following Advantageous Effects:
The advantage of this structure:
Save traditional gearhousing, save a part cost-saving;
Simplify structure, be convenient to assembling, improve production efficiency;
Can reduce and grip position size, grip position be gripped more comfortable, more meet human engineering;
The size of complete machine and the weight of complete machine can be reduced, be more conducive to operation and carry;
The casing inner wall of parcel ring gear increases bag flexible glue, automatically have adjusted the gap between gear train, strike note when improving noise and start instantaneously or brake.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electric tool of the present invention, and wherein, for clarity, can see inner structure, half casing is removed;
Fig. 2 is the explosive view of reducing gear.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the preferred a kind of angle of electric tool of the present invention impacts class instrument 20, it can be angle impact screwdriver, angle percussion drill or impact wrench etc., it is involuted by two halves casing 10, the microscler holding area 10 ' on Y Y gripped for operator is formed in the main body part of casing 10, the casing 10 at this holding area 10 ' place is provided with starting switch 11, for controlling the start and stop of the motor 2 in casing 10, in present embodiment, motor 2 is powered by power brick 1, in other embodiments, motor 2 also can by Alternating Current Power Supply, having at the front support of casing 10 can clamping screwdriver, the working head 9 of drill bit etc., the Y X of working head 9 is substantially perpendicular to the Y Y of holding area 10.Its operation principle is, the rotation output of motor 2 is finally converted to by planetary gear speed reducing mechanism, rotary impact assembly and vertical duction mechanism rotates the impact at working head 9 position, wherein, vertical duction mechanism comprises the bevel pinion 81 be arranged on axial Y and the bevel gear wheel 82 be arranged on axial X.
Composition graphs 2, planetary gear speed reducing mechanism comprises the centre wheel 14 be fitted on motor 2 output shaft 13, with a pair symmetrically arranged planetary gear 17 of this centre wheel 14 external toothing, each planetary gear 17 is connected on planet carrier 18 respectively by a steel column 16, and located relative to planet carrier 18 on axial Y by packing ring 15, planetary gear 17 and a gear ring 4 form internal messing, rotary impact assembly comprises rotary impact wheel 6, by impact block 7 and back-moving spring 5, beater wheel 6 is configured with a pair symmetrically arranged impact teeth 61, be decelerated in the process of output shaft 19 driven rotary at beater wheel 6, first an impact teeth 61 impacts by impact block 7, form a rotary impact to the instrument (drill bit or spanner or screwdriver etc.) that working head 9 place clamps, and be subject to the temporary transient obstacle resistance of the instrument coming from working head 9 position, and move to the direction of Compress Spring 5, thus, this impact teeth 61 is crossed by impact block 7, then, back-moving spring 5 discharges elastic potential energy and rapidly swiveling wheel 6 is pushed back original position, make next impact teeth 61 and bumped against by impact block 7, the impact formed again is rotated, this periodic interval impact is rotated operation element the most at last and is driven in workpiece to be processed.
Planetary gear speed reducing mechanism of the present invention is directly contained in casing 2, and be roughly placed on the position corresponding with holding area 10 ', casing 2 directly wraps up ring gear 4, preferably, the flexible material 12 of the strike note produced when being provided with the noise can eliminating gear in casing 2 and starting instantaneously and stop, this flexible material 12 at least should comprise flexible material 12 part be arranged between the gear ring 4 of planetary gear speed reducing mechanism and casing 2, be conducive to the gap further automatically between adjustment gear train, form flexible adjustment, reduce noise; Flexible material 12 can be gum sponge, flexible glue and rubber peel etc., especially, flexible glue can adopt formed in mould mode to be directly formed on casing, because planetary gear speed reducing mechanism is not provided with gearhousing, casing 10 will directly carry supporting role and the sealing function of planetary gearsets, so for the sealing of the lubricant grease in casing 2, the present invention adopts and establishes oil storage and hermetically-sealed construction (not shown) at the abutment joint place of Dui Jie two halves casing.
Be different from gear ring outer peripheral face in prior art and be provided with the protruding structure be connected with gear box casing, gear ring 4 of the present invention can not circumference be connected on a bracket 3 rotationally, when do not change transmission when gear parameter, for make gear ring 4 corresponding to the radial dimension at holding area 10 ' place try one's best little, the part that gear ring 4 is connected with bracket 3 adaptation is separately positioned on its adjacent end face, in present embodiment, the part of this adaptation comprises the projection 32 be located at respectively on bracket 3 end face and the groove 43 be located on gear ring 4 end face, in other embodiments, easy understand, the setting position of projection 32 and groove 43 can be exchanged, the end face of bracket 3 can also be provided with boss 33, boss 33 fits within the inner peripheral surface 41 of gear ring 4, play gear ring 4 positioning action diametrically, preferably, the outer peripheral face 31 of bracket 4 is concordant with the outer peripheral face 42 of gear ring 4.
Disclosed electric tool is not limited to the structure representated by the content described in above embodiment and accompanying drawing.The apparent change that basis of the present invention is done the shape of wherein component and position, to substitute or amendment, all within the scope of protection of present invention.
Claims (2)
1. an electric tool, comprise: casing, be placed in the motor in casing and planetary gear speed reducing mechanism, described planetary gear speed reducing mechanism has centre wheel, planetary gear, planet carrier and gear ring, it is characterized in that: described planetary gear speed reducing mechanism not between be separated with gear box casing and be directly placed in described casing; Flexible material is separated with between the outer peripheral face of the gear ring of described planetary gear speed reducing mechanism and the medial surface of described casing; Described gear ring can not circumference be rotatably fixed in described casing by a bracket, and described bracket and described gear ring are respectively equipped with locking portion on adjacent end face; Described locking portion is configured to can mutually adaptive double wedge and groove, and described double wedge is arranged on described bracket and gear ring on one of them, described groove be arranged on described bracket and gear ring one of other on; Described bracket is supported on described rotating shaft by the rotating shaft coaxle with described motor, and described bracket is provided with the boss that can position in the radial direction of the axis perpendicular to described rotating shaft described gear ring with the inner peripheral surface adaptation of described gear ring; Described bracket has the outer peripheral face concordant with the outer peripheral face of described gear ring; The outer peripheral face of the gear ring of described planetary gear speed reducing mechanism and the medial surface of described casing directly corresponding; Described planetary gear speed reducing mechanism be arranged in described casing with corresponding section, holding area; Described flexible material is flexible glue; Described flexible glue adopts formed in mould mode to be directly formed on the medial surface of described casing.
2. electric tool according to claim 1, it is characterized in that: described casing front support has working head, the Y of described working head and the Y substantial orthogonality of holding area, be also provided with the output can transmitting described planetary gear speed reducing mechanism in described casing and change into the rotary impact assembly and vertical duction mechanism that rotate the impact of described working head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110039845.8A CN102632483B (en) | 2011-02-13 | 2011-02-13 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110039845.8A CN102632483B (en) | 2011-02-13 | 2011-02-13 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102632483A CN102632483A (en) | 2012-08-15 |
| CN102632483B true CN102632483B (en) | 2015-11-25 |
Family
ID=46617155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110039845.8A Expired - Fee Related CN102632483B (en) | 2011-02-13 | 2011-02-13 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102632483B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381473B (en) * | 2017-01-20 | 2022-01-18 | 苏州宝时得电动工具有限公司 | Power tool and oil supply device for power tool |
| TWI821631B (en) * | 2020-01-20 | 2023-11-11 | 鑽全實業股份有限公司 | Hand-held power tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006603Y (en) * | 2006-12-08 | 2008-01-16 | 钟李杏枝 | Multifunctional impact electric tool |
| CN201179649Y (en) * | 2008-03-28 | 2009-01-14 | 南京德朔实业有限公司 | Electric tools |
| CN101522352A (en) * | 2006-10-12 | 2009-09-02 | 罗伯特·博世有限公司 | Hand machine-tool, especially electrical shears |
| US7766787B2 (en) * | 2007-10-11 | 2010-08-03 | Wellcam Machinery Corp. | Hand-held rotating power tool |
| CN101837583A (en) * | 2010-05-11 | 2010-09-22 | 南京德朔实业有限公司 | Portable angular tool |
| CN201970289U (en) * | 2011-02-13 | 2011-09-14 | 南京德朔实业有限公司 | Motor-driven tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102632A (en) * | 1998-04-23 | 2000-08-15 | Black & Decker Inc. | Two speed right angle drill |
-
2011
- 2011-02-13 CN CN201110039845.8A patent/CN102632483B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101522352A (en) * | 2006-10-12 | 2009-09-02 | 罗伯特·博世有限公司 | Hand machine-tool, especially electrical shears |
| CN201006603Y (en) * | 2006-12-08 | 2008-01-16 | 钟李杏枝 | Multifunctional impact electric tool |
| US7766787B2 (en) * | 2007-10-11 | 2010-08-03 | Wellcam Machinery Corp. | Hand-held rotating power tool |
| CN201179649Y (en) * | 2008-03-28 | 2009-01-14 | 南京德朔实业有限公司 | Electric tools |
| CN101837583A (en) * | 2010-05-11 | 2010-09-22 | 南京德朔实业有限公司 | Portable angular tool |
| CN201970289U (en) * | 2011-02-13 | 2011-09-14 | 南京德朔实业有限公司 | Motor-driven tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102632483A (en) | 2012-08-15 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20210213 |