CN101435487B - Gear drive mechanism of rotating shaver - Google Patents
Gear drive mechanism of rotating shaver Download PDFInfo
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- CN101435487B CN101435487B CN2008101636023A CN200810163602A CN101435487B CN 101435487 B CN101435487 B CN 101435487B CN 2008101636023 A CN2008101636023 A CN 2008101636023A CN 200810163602 A CN200810163602 A CN 200810163602A CN 101435487 B CN101435487 B CN 101435487B
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- driving gear
- bevel gear
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Abstract
The invention relates to a gear drive mechanism for rotary-type razors, which comprises a driving gear arranged on a motor shaft, as well as a gear drive mechanism between the driving gear and a half-coupling. The mechanism is characterized in that the driving gear and the gear drive mechanism between the driving gear and the half-coupling consist of a cylindrical bevel gear and a plurality of cylindrical gears; the cylindrical bevel gear is a bevel gear capable of meshing with an involute cylindrical gear; the forming principle of a tooth profile of the cylindrical bevel gear is to obtain a conjugate tooth profile by using an involute gear slotting tool to perform generating machining to a bevel gear blank under the conditions that a gear shaping tool and two axes of the gear blank intersect and are at a set included angle. The drive mechanism has the advantages of greatly simplifying technological requirements on manufacture and assembly, reducing cost, improving product quality and well solving problems existing in the prior art, along with low noise and long life span.
Description
Technical field
The present invention relates to a kind of gear drive of rotary shaver.
Background technique
The gear drive (Fig. 1) of existing rotary shaver (is example with the three-head rotating shaver) generally includes spur gear z
1, z
2, z
3, z
4Train, driving gear z
1Be contained on the motor shaft gear z
2With gear z
3Be duplicate gear, driving gear z
1Actuation gear z
2, gear z
3Drive three gear z with identical function
4And come to drive simultaneously the work of three razor groups through the coupling that combines with its elasticity, realize shaving function.Because this kind gear drive is to adopt the cylindrical gears engagement; The axis of motor and razor group parallel axes; Interior wrist of most of the time and ancon need rotate upwards 30～60 ° direction during use; Thereby when the travelling comfort of using designs the position of handle (being body) and razor group; Require then that (being body center's line) forms an angle between razor group and handle center's line, it is substantially parallel with people's skin of face both to have satisfied razor group plane when using like this, and the direction of handle grip makes wrist and ancon comfortable.In order to address this problem; One of the scheme that adopts at present (Fig. 1) is exactly swelled handle portion volume, and motor drive direction turns an angle and places and razor group parallel axes, like this hand grip a meeting leave force bearing point far and volume also bigger; Not attractive in appearance, and be held in the hand when using uncomfortable.Another kind of scheme (Fig. 2) is the common cone gear z that in drive gear mechanism, adds a pair of change transmission direction
1, z
2Though this scheme has solved the problem of razor group plane and handle part angle, because the mounting point of cone gear requires than high many of cylindrical gears, the vertex of a cone of two gears must overlap except requirements such as angle; Otherwise gear can not normal engaged, and noise is big during use, and gear also can sharply wear and tear; Mechanism can lose efficacy very soon, so production and assembling require very highly, causes the finished product rate low; Cost of production is high, and working life is short.Electric shaver is the mechanism (the about 8000rpm of motor output speed) of high-speed rotation in addition; Part is plastic article; The technical requirements of cone gear, gear carrier accuracy of manufacturing and installation far exceeds the economic accuracy scope of plastic article, the running stability of device, instantaneous speed ratio, the inaccessible economic technology requirement of noise level.So up to the present, still the neither one gear drive can solve the problems referred to above well.
Summary of the invention
The objective of the invention is to be easy to make and assemble and noise is little, the gear drive of the rotary shaver of long service life for the deficiency that overcomes existing technology provides a kind of.
For realizing above-mentioned purpose; The invention discloses a kind of gear drive of rotary shaver; Comprise the gear drive between driving gear, at least one half-coupling, driving gear and the half-coupling that is installed on the motor shaft; It is characterized in that: the gear drive between said driving gear, driving gear and the half-coupling; Form by at least one cylinder bevel gear and several cylinders gear; Said cylinder bevel gear is the bevel gear that can be meshed with involute cylindrical gear, and the shaping principle of its flank profil is to intersect and become one to set under the angle condition in gear shaper cutter and bevel gear base two axial lines, the conjugate profiles that the involute gear slotting tool obtains the processing of bevel gear base generate; Or the helical bevel gear that can be meshed with the involute cylindric spiral gear; The shaping principle of its flank profil is that the projection of axis on hobboing cutter axis and the determined plane of hobboing cutter direction of feed at awl tooth base is parallel to direction of feed, and under the condition of the angle that becomes to set with this tooth base axis, involute gear hob is processed and the conjugate profiles of acquisition awl tooth base generate by the method for Helical Gear Hobbing.
Compare with the gear drive of existing rotary shaver; The gear drive of the rotary shaver among the present invention is owing to the gear drive between driving gear and driving gear and coupling is made up of a cylinder bevel gear and several cylinders gear; Therefore axis and the angle between the razor group axis that can reach the adjustment motor through the tapering that changes the cylinder bevel gear are to satisfy the angle of (being body center's line) between razor group and handle center's line; It is substantially parallel with people's skin of face both to have satisfied razor group plane when making use, can guarantee to operate comfortable again.Also have the following advantages simultaneously: move the normal engaged that (as long as the inner space allows) can not influence this gear pair when 1, installing along the position on its axial direction owing to the cylindrical gears that is meshed with the cylinder bevel gear; 2, intermeshing cylinder bevel gear and cylindrical gears require suitable with cylindrical gears along having separability perpendicular to the centre distance on the direction of center line; Compare the requirement of having lacked vertex of a cone coincidence with a pair of cone gear installation when 3, assembling; 4, this cylinder bevel gear can mesh with the cylindrical gears of the different numbers of teeth when improving product specification, can inherit and use and needn't make again, reduces the cost of product development.Just owing to the existence of above-mentioned advantage, this driving mechanism has greatly been simplified the technological requirement of making and assembling, and has reduced cost, improved quality of product, and noise is little, long service life, has solved the problem that exists in the existing technology well.
To combine accompanying drawing and specific embodiment that the present invention is further described below:
Description of drawings
Fig. 1 is: the rotary shaver gear drive sketch that the prior art cylindrical gear is formed;
Fig. 2 is: the gear drive of existing technology is with the scheme sketch of the train of a pair of cone gear;
Fig. 3 is: three razor specific embodiments of the present invention train transmission sketch;
Fig. 4 is: the K of Fig. 3 is to the train view;
Fig. 5 is: the present invention's first driving gear is the train transmission sketch of cylindrical gears;
Fig. 6 is: the present invention's first driven gear is the train transmission sketch of interior cylinder bevel gear;
Fig. 7 is: the present invention's first driving gear is that outer cylinder bevel gear, first driven gear are the train transmission sketch of interior cylindrical gears;
Embodiment
Specific embodiment 1: the gear drive of rotary shaver is the gear drive that comprises between driving gear, at least one half-coupling, driving gear and the half-coupling that is installed on the motor shaft; Gear drive between driving gear, driving gear and the half-coupling is made up of at least one cylinder bevel gear and several cylinders gear, and cylinder bevel gear axis equals the angle requirement between handle part axis (being electrical axis) and the razor group axis with the formed angle sum of the cylindrical gears axis that is meshed in each gear stage.The cylinder bevel gear is the bevel gear that can be meshed with involute cylindrical gear; The shaping principle of its flank profil is to intersect and become one to set under the angle condition in gear shaper cutter and bevel gear base two axial lines; The conjugate profiles that the involute gear slotting tool obtains the processing of bevel gear base generate; Or the helical bevel gear that can be meshed with the involute cylindric spiral gear; The shaping principle of its flank profil is that the projection of axis on hobboing cutter axis and the determined plane of hobboing cutter direction of feed at awl tooth base is parallel to direction of feed, and under the condition of the angle that becomes to set with this tooth base axis, involute gear hob is processed and the conjugate profiles of acquisition awl tooth base generate by the method for Helical Gear Hobbing.Gear drive with three-head rotating shaver is an example below.As shown in Figure 5; The gear drive of rotary shaver is provided with one first driving gear 1, one first driven gear 2, second driving gear 3 and three second driven gears 4; Wherein first driven gear 2 adopts the cylinder bevel gear, and its tapering is confirmed by the axis and the design of the angle β requirement between razor group 6 axis of motor 5.First driving gear 1 adopts cylindrical gears to be arranged on the motor shaft 7; First driven gear 2 and second driving gear 3 are fixedly installed in the same rotating shaft; Both can be that rotate together at the two ends that are fixedly installed on first driven shaft 8 respectively, and also can be arranged on same first driven shaft 8 and form duplicate gear.First driven shaft 8 tilts setting with motor shaft 7; Angle is that the flank profil of cylinder bevel gear forms angle (promptly setting angle β) between the two axial lines described in the principle; The axis normal setting of motor 5; Edge first driven shaft, 8 axial directions, first driven gear 2 is that the cylinder bevel gear on the duplicate gear is positioned at the below and is arranged at first driving gear, 1 engagement on the motor, the top that second driving gear 3 is positioned at first driven gear 2; Three second driven gears 4 respectively are separately positioned on the two ends of three second driven shafts 10 with half-coupling 9 elastic couplings, and are distributed on around second driving gear 3, and are as shown in Figure 4.Second driven shaft 10 and first driven shaft 8 are parallel to each other, and three second driven gears 4 all mesh the razor group 6 that second driven gear 4 drives separately through coupling 9 with second driving gear 3.
Specific embodiment 2: as shown in Figure 6; The gear drive of rotary shaver is provided with one first driving gear 1, one first driven gear 2, second driving gear 3 and three second driven gears 4; Cylinder bevel gear in wherein first driven gear 2 adopts, its tapering is confirmed by the axis and the design of the angle β requirement between razor group 6 axis of motor 5.First driving gear 1 adopts cylindrical gears to be arranged on the motor shaft 7; First driven gear 2 and second driving gear 3 are formed the two ends that duplicate gear is arranged on first driven shaft 8; First driven shaft 8 tilts setting with motor shaft 7; Angle is an angle (promptly setting angle β) between the two axial lines described in the flank profil shaping principle of cylinder bevel gear; The axis normal setting of motor 5, edge first driven shaft, 8 axial directions, first follower 2 are that the interior cylinder bevel gear on the duplicate gear is positioned at the below and is arranged on first driving gear, 1 engagement on the motor, the top that second driving gear 3 is positioned at first driven gear 2, and three second driven gears 4 respectively combine to be separately positioned on the two ends of three second driven shafts 10 with half-coupling 9 elasticity; And be distributed on around second driving gear 3, as shown in Figure 4.Second driven shaft 10 and first driven shaft 8 are parallel to each other, and three second driven gears 4 all mesh the razor group 6 that second driven gear 4 drives separately through coupling 9 with second driving gear 3.
The foregoing description explanation, in the present invention, the cylinder bevel gear both can have been adopted outer cylinder bevel gear (like Fig. 3, shown in 5), and cylinder bevel gear (as shown in Figure 6) or outer cylinder bevel gear cooperate with interior cylindrical gears in also can adopting, and be as shown in Figure 7.In addition with adopting one of in second driving gear 3 or second driven gear 4 cylinder bevel gear, remaining gear to adopt cylindrical gears also to be fine.
Though above-mentioned specific embodiment is that the gear drive with three-head rotating shaver is an example; But be not limited in three-head rotating shaver; As long as the number of second driven gear 4, coupling 9 and second driven shaft 10 that will be wherein suitably increases or reduces, the basic identical gear drive that just can be suitable for equally as single head, double end, four-head even the multi-head rotary shaver more than the four-head of structure.Wherein the gear drive of single head rotary shaver can be save second driven shaft 10, the gear drive of the multi-head rotary shaver that double end is above, and its second driven shaft 10 preferably is evenly distributed in around second driving gear 3.In addition, this gear drive is to use motor 5 also to be fit to manual drives such as shaking type or hand-clasping type rotary shaver for power, as long as first driving gear 1 is arranged on the pto.
Claims (3)
1. the gear drive of rotary shaver; Comprise the driving mechanism that the gear between driving gear, at least one half-coupling, driving gear and the half-coupling that is installed on the motor shaft is formed; It is characterized in that: the gear drive between said driving gear, driving gear and the half-coupling is made up of a cylinder bevel gear and several cylinders gear; Said cylinder bevel gear is the bevel gear that can be meshed with involute cylindrical gear; The shaping principle of its flank profil is to intersect with awl tooth base two axial lines and become one to set under the condition of angle at gear shaper cutter; The conjugate profiles that the involute gear slotting tool obtains the processing of bevel gear base generate; Or the helical bevel gear that can be meshed with the involute cylindric spiral gear; The shaping principle of its flank profil is that the projection of axis on hobboing cutter axis and the determined plane of hobboing cutter direction of feed at awl tooth base is parallel to direction of feed, and under the condition of the angle that becomes to set with this tooth base axis, involute gear hob is processed and the conjugate profiles of acquisition awl tooth base generate by the method for Helical Gear Hobbing; The gear drive of said rotary shaver is two, or the gear drive of three or four-head rotary shaver; Comprise first driving gear, first driven gear, second driving gear and second driven gear; Said first driving gear is arranged on the motor shaft; First driven gear and second driving gear are fixedly installed in the same rotating shaft; The engagement of first driving gear and first driven gear, second driven gear consistent with cutter head quantity respectively with a half-coupling resilient connection, and be distributed on around second driving gear; Second driven gear consistent with cutter head quantity all meshes with second driving gear, and second driven gear drives razor group separately through coupling; Said cylinder bevel gear can be described first driving gear, or described first driven gear, or described second driving gear, or described second driven gear.
2. the gear drive of rotary shaver according to claim 1, it is characterized in that: said cylinder bevel gear is interior cylinder bevel gear.
3. the gear drive of rotary shaver according to claim 1, it is characterized in that: said cylinder bevel gear is the outer cylinder bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101636023A CN101435487B (en) | 2008-12-16 | 2008-12-16 | Gear drive mechanism of rotating shaver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101636023A CN101435487B (en) | 2008-12-16 | 2008-12-16 | Gear drive mechanism of rotating shaver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435487A CN101435487A (en) | 2009-05-20 |
| CN101435487B true CN101435487B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101636023A Active CN101435487B (en) | 2008-12-16 | 2008-12-16 | Gear drive mechanism of rotating shaver |
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| Country | Link |
|---|---|
| CN (1) | CN101435487B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908421A (en) * | 2018-09-10 | 2018-11-30 | 利民(番禺南沙)电器发展有限公司 | A kind of rotary electric shaver |
| CN110877350A (en) * | 2019-12-26 | 2020-03-13 | 上海飞科电器股份有限公司 | Electric shaver |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104406A (en) * | 1986-06-30 | 1987-04-15 | 辽宁省大连市群星科技开发公司 | Transmission device of cylindrical-pane gear and processing method thereof |
| CN2140819Y (en) * | 1992-11-24 | 1993-08-25 | 郭良玉 | Electric shaver capable of being used as a toothbrush |
| CN2647519Y (en) * | 2003-06-17 | 2004-10-13 | 上海真博电器有限公司 | Four-head double-directional electric shaver |
| CN101094751A (en) * | 2004-12-14 | 2007-12-26 | 吴泰准 | Net rotating type electric razor |
| WO2008010139A1 (en) * | 2006-07-14 | 2008-01-24 | Koninklijke Philips Electronics N.V. | Shaver having a space for collecting cut-off hairs |
| CN201042806Y (en) * | 2007-08-24 | 2008-04-02 | 曹伟明 | Gear driving device of three-head rotating shaver |
-
2008
- 2008-12-16 CN CN2008101636023A patent/CN101435487B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104406A (en) * | 1986-06-30 | 1987-04-15 | 辽宁省大连市群星科技开发公司 | Transmission device of cylindrical-pane gear and processing method thereof |
| CN2140819Y (en) * | 1992-11-24 | 1993-08-25 | 郭良玉 | Electric shaver capable of being used as a toothbrush |
| CN2647519Y (en) * | 2003-06-17 | 2004-10-13 | 上海真博电器有限公司 | Four-head double-directional electric shaver |
| CN101094751A (en) * | 2004-12-14 | 2007-12-26 | 吴泰准 | Net rotating type electric razor |
| WO2008010139A1 (en) * | 2006-07-14 | 2008-01-24 | Koninklijke Philips Electronics N.V. | Shaver having a space for collecting cut-off hairs |
| CN201042806Y (en) * | 2007-08-24 | 2008-04-02 | 曹伟明 | Gear driving device of three-head rotating shaver |
Non-Patent Citations (1)
| Title |
|---|
| 李特立.齿轮啮合原理.上海科学技术出版社,1984,384，395. * |
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|---|---|
| CN101435487A (en) | 2009-05-20 |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI FLYCO ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: LI GAITENG Effective date: 20110830 |
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Free format text: CORRECT: ADDRESS; FROM: 325014 WENZHOU, ZHEJIANG PROVINCE TO: 201600 SONGJIANG, SHANGHAI |
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Effective date of registration: 20110830 Address after: 201600 Shanghai Songjiang District Zhongshan street, Xu Tang Lu 88-1 Applicant after: Zhejiang Flyco Electrical Appliance Co., Ltd. Address before: 325014, 87-10 West Road, Ouhai Economic Development Zone, Zhejiang, Wenzhou Applicant before: Li Gaiteng |
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Address after: 201600 Shanghai Songjiang District Zhongshan street, Xu Tang Lu 88-1 Patentee after: SHANGHAI FLYCO ELECTRICAL APPLIANCE CO., LTD. Address before: 201600 Shanghai Songjiang District Zhongshan street, Xu Tang Lu 88-1 Patentee before: Zhejiang Flyco Electrical Appliance Co., Ltd. |
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Address after: 201613 Shanghai city Songjiang District Guangfulin Road No. 555 Patentee after: SHANGHAI FLYCO ELECTRICAL APPLIANCE CO., LTD. Address before: 201600 Shanghai Songjiang District Zhongshan street, Xu Tang Lu 88-1 Patentee before: SHANGHAI FLYCO ELECTRICAL APPLIANCE CO., LTD. |