CN104440793A - Rotation power transmission device in multifunctional electric hammer - Google Patents
Rotation power transmission device in multifunctional electric hammer Download PDFInfo
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- CN104440793A CN104440793A CN201410647410.5A CN201410647410A CN104440793A CN 104440793 A CN104440793 A CN 104440793A CN 201410647410 A CN201410647410 A CN 201410647410A CN 104440793 A CN104440793 A CN 104440793A
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- gear
- gear ring
- box
- transmission
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Abstract
The invention discloses a rotation power transmission device in a multifunctional electric hammer. The rotation power transmission device comprises a driving big gear wheel meshed with an output pinion on a motor output shaft. A duplicate gear is composed of the driving big gear wheel and a driving pinion. Both the output pinion and the duplicate gear are arranged in a semi-closed gearbox. A transmission spindle is movably arranged in a middle through hole in the duplicate gear. A transmission big gear wheel is fixed to the transmission spindle and located in the gearbox. The inner end face of the transmission big gear wheel is provided with a plurality of planet pinions. The driving pinion is in meshed transmission with all the planet pinions. The transmission big gear wheel is sleeved with a movable gear ring. A circumferential locking device capable of locking the movable gear ring in the circumferential direction is arranged at the bottom of the gearbox. A stirring ring capable of driving the movable gear ring to move in the axial direction is connected to the movable gear ring. According to the rotation power transmission device, the structure is simple, installation is convenient, lubricating oil between the gears is not likely to flow away, and rotation power transmission reliability is improved.
Description
Technical field
The present invention relates to multifunctional electric hammer, refer more particularly to the speed reducing mechanism in multifunctional electric hammer.
Background technology
Multifunctional electric hammer has usually " brill ", the several functions such as " hammer, bore " and " screwdriver ".Multifunctional electric hammer mainly comprises: housing, be arranged at the power unit in housing, speed reducing mechanism, hammering power transmission, in order to carry out power and energy shifter, be arranged at the transmission main shaft in housing by the output performance element of meshed transmission gear, be output the hammering actuating mechanism that performance element can start hammering power transmission after interior compressing.Power unit mainly comprises motor, is installed on the output pinion of motor output shaft and is placed in the duplicate gear on transmission main shaft, duplicate gear is made up of active gear wheel and driver pinion integrated combination, output pinion with form the active gear wheel of duplicate gear and to be meshed transmission; Speed reducing mechanism is mainly used in the rotary power of duplicate gear to pass to the transmission main shaft be movably set in housing, then by transmission main shaft, rotary power is passed to output performance element; According to the needs of different output function, correspondingly install " drill bit ", " drill hammer " or " screwdriver bit " at the output exporting performance element, to realize " brill ", " hammer, brill " or " screwdriver " these three kinds of functions respectively.At present, the part such as dynamic gear ring, sliding piece, planet pinion, transmission gear wheel forming speed reducing mechanism is directly exposed to be installed in housing, and it is very loaded down with trivial details that such structure makes to install positioning work on the one hand; Make the lubricating oil in order to lubricate between gear be easy to run off on the other hand, greatly have impact on result of use and the service life of electric hammer; Moreover move gear ring and housing and the positioning connection structure reliability between dynamic gear ring and sliding piece not high, this also have impact on the result of use of electric hammer.
Summary of the invention
Technical problem to be solved by this invention is: the speed reducing mechanism by providing that lubricating oil between a kind of easy for installation, gear not easily runs off, in the better multifunctional electric hammer of result of use.
In order to solve the problem, the technical solution adopted in the present invention is: the speed reducing mechanism in multifunctional electric hammer, comprise: engage each other the active gear wheel of transmission with the output pinion on motor output shaft, initiatively gear wheel and driver pinion integrated combination form duplicate gear, be characterized in: output pinion and duplicate gear are all arranged on an outer end and are provided with in uncovered semi-enclosed gear-box, transmission main shaft is movably set with in the intermediate throughholes of duplicate gear, one end of transmission main shaft is arranged on bottom gear-box by bearing, the other end of transmission main shaft stretches out outside gear-box by uncovered, transmission main shaft is fixedly installed a transmission gear wheel, transmission gear wheel is arranged in gear-box, the inner face of transmission gear wheel is circumferentially provided with several planet pinion that can rotate freely, driver pinion be positioned at all planet pinions centre and with all planet pinion engaged transmission, the dynamic gear ring that can move axially in gear-box is set with in the outside of transmission gear wheel, the peripheral locking device that dynamic gear ring circumference can be locked is provided with bottom gear-box and between dynamic gear ring, and move gear ring when dynamic gear ring moves and locked by circumference bottom gear-box and only engage each other with planet pinion, when dynamic gear ring outside gear-box uncovered movement and remove circumference locking time move gear ring and be meshed with planet pinion and transmission gear wheel simultaneously, dynamic gear ring is also connected with dynamic gear ring can be driven to move axially in gear-box but do not hinder dynamic gear ring to rotate in a circumferential direction stir circle.
Further, speed reducing mechanism in aforesaid multifunctional electric hammer, wherein: the structure of peripheral locking device is: the sidewall bottom gear-box is evenly provided with at least two locking projections, the sidewall of dynamic gear ring the inner is provided with the latch recess of the kayser that to match with locking projections, when dynamic gear ring moves and makes latch recess be enclosed within locking projections bottom gear-box, dynamic gear ring is locked by circumference.
Further, speed reducing mechanism in aforesaid multifunctional electric hammer, wherein: dynamic gear ring and the syndeton of stirring between circle are: on the lateral wall of dynamic gear ring, be provided with a ring annular groove, the madial wall stirring circle is evenly provided with at least three card columns, card column stretches in annular groove, and card column can drive dynamic gear ring move axially with stirring circle but do not hinder dynamic gear ring to rotate in a circumferential direction.
Further, speed reducing mechanism in aforesaid multifunctional electric hammer, wherein: on the lateral wall stirring circle, be provided with outwardly guide pad, the madial wall of gear-box is provided with axial direction recess, guide pad is arranged in direction recess, stirs circle and is moved axially by guide pad and being engaged in gear-box of direction recess.
Advantage of the present invention is: the structure of the speed reducing mechanism in multifunctional electric hammer of the present invention is simple, easy for installation, and it can make lubricating oil between gear not easily run off, improve the reliability that rotary power transmits, make the result of use of multifunctional electric hammer better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the speed reducing mechanism in multifunctional electric hammer of the present invention.
The detonation configuration schematic diagram that Fig. 2 is the speed reducing mechanism in multifunctional electric hammer shown in Fig. 1.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
Speed reducing mechanism in multifunctional electric hammer, as Fig. 1, shown in Fig. 2, comprise: engage each other the active gear wheel 21 of transmission with the output pinion 11 on motor output shaft 1, initiatively gear wheel 21 and driver pinion 22 integrated combination form duplicate gear 2, output pinion 11 and duplicate gear 2 are all arranged on an outer end and are provided with in uncovered semi-enclosed gear-box 3, transmission main shaft 4 is movably set with in the intermediate throughholes of duplicate gear 2, one end of transmission main shaft 4 is arranged on bottom gear-box 3 by bearing 41, the other end of transmission main shaft 4 stretches out outside gear-box 3 by uncovered, transmission main shaft 4 is fixedly installed a transmission gear wheel 5, transmission gear wheel 5 is arranged in gear-box 3, the inner face of transmission gear wheel 5 is along the circumferential direction evenly provided with five planet pinions that can rotate freely 51, driver pinion 22 be positioned at all planet pinions 51 centre and with all planet pinion 51 engaged transmission, the dynamic gear ring 6 that can move axially in gear-box 3 is set with in the outside of transmission gear wheel 5, the peripheral locking device that dynamic gear ring 6 circumference can be locked is provided with bottom gear-box 3 and between dynamic gear ring 6, in the present embodiment, the structure of peripheral locking device is: the sidewall bottom gear-box 3 is along the circumferential direction evenly provided with ten locking projections 31, the sidewall of dynamic gear ring 6 the inner is provided with ten latch recess 61 of the kayser that to match with locking projections 31, when dynamic gear ring 6 moves and makes latch recess 61 be enclosed within locking projections 31 bottom gear-box 3, dynamic gear ring 6 is locked by circumference, the structure that above-mentioned locking projections 31 and latch recess 61 cooperatively interact is simple, such structure just can make gear ring 6 by fast, circumference locking exactly, and move gear ring 6 when dynamic gear ring 6 moves and locked by circumference bottom gear-box 3 only to engage each other with planet pinion 51, the rotary speed so just making duplicate gear 2 pass to transmission main shaft 4 is comparatively slow, moment is larger, and move gear ring 6 when circumference locking removed by dynamic gear ring 6 to uncovered movement outside gear-box 3 and be meshed with planet pinion 51 and transmission gear wheel 5 simultaneously, the rotary speed of transmission main shaft 4 is very fast, moment is less so just to make duplicate gear 2 pass to, dynamic gear ring 6 is also connected with dynamic gear ring 6 can be driven to move axially in gear-box 3 but do not hinder dynamic gear ring 6 to rotate in a circumferential direction stir circle 7, dynamic gear ring 6 and the syndeton of stirring between circle 7 are: on the lateral wall of dynamic gear ring 6, be provided with a ring annular groove 62, the madial wall stirring circle 7 is evenly provided with four card columns 71, card column 71 stretches in annular groove 62, card column 71 can drive dynamic gear ring 6 move axially with stirring circle 7 but do not hinder dynamic gear ring 6 to rotate in a circumferential direction, use at least three card columns 71 can increase the interlock stability of stirring between circle 7 and dynamic gear ring 6, the lateral wall stirring circle 7 is provided with outwardly guide pad 72, the madial wall of gear-box 3 is provided with axial direction recess 32, guide pad 71 is arranged in direction recess 32, stir circle 7 to be moved axially by guide pad 71 and being engaged in gear-box 3 of direction recess 32, by the guiding of guide pad 71 and direction recess 32, can make to stir circle 7 movement more smooth and easy in gear-box 3.In the present embodiment, output pinion 1, duplicate gear 2, transmission gear wheel 5, dynamic gear ring 6, stir circle 7, transmission main shaft 4 is all arranged in gear-box 3, arrange like this and the lubricating oil between above-mentioned part can be made not easily to run off, improve the smoothness operated between part, and what make above-mentioned part coordinate is more tight, improves the reliability that rotary power transmits.
Beneficial effect of the present invention is: the structure of the speed reducing mechanism in multifunctional electric hammer of the present invention is simple, easy for installation, and it can make lubricating oil between gear not easily run off, improve the reliability that rotary power transmits, make the result of use of multifunctional electric hammer better.
Claims (4)
1. the speed reducing mechanism in multifunctional electric hammer, comprise: engage each other the active gear wheel of transmission with the output pinion on motor output shaft, initiatively gear wheel and driver pinion integrated combination form duplicate gear, it is characterized in that: output pinion and duplicate gear are all arranged on an outer end and are provided with in uncovered semi-enclosed gear-box, transmission main shaft is movably set with in the intermediate throughholes of duplicate gear, one end of transmission main shaft is arranged on bottom gear-box by bearing, and the other end of transmission main shaft stretches out outside gear-box by uncovered; Transmission main shaft is fixedly installed a transmission gear wheel, transmission gear wheel is arranged in gear-box, the inner face of transmission gear wheel is circumferentially provided with several planet pinion that can rotate freely, driver pinion be positioned at all planet pinions centre and with all planet pinion engaged transmission; The dynamic gear ring that can move axially in gear-box is set with in the outside of transmission gear wheel, the peripheral locking device that dynamic gear ring circumference can be locked is provided with bottom gear-box and between dynamic gear ring, and move gear ring when dynamic gear ring moves and locked by circumference bottom gear-box and only engage each other with planet pinion, when dynamic gear ring outside gear-box uncovered movement and remove circumference locking time move gear ring and be meshed with planet pinion and transmission gear wheel simultaneously; Dynamic gear ring is also connected with dynamic gear ring can be driven to move axially in gear-box but do not hinder dynamic gear ring to rotate in a circumferential direction stir circle.
2. the speed reducing mechanism in multifunctional electric hammer according to claim 1, it is characterized in that: the structure of peripheral locking device is: the sidewall bottom gear-box is evenly provided with at least two locking projections, the sidewall of dynamic gear ring the inner is provided with the latch recess of the kayser that to match with locking projections, when dynamic gear ring moves and makes latch recess be enclosed within locking projections bottom gear-box, dynamic gear ring is locked by circumference.
3. the speed reducing mechanism in multifunctional electric hammer according to claim 1 and 2, it is characterized in that: dynamic gear ring and the syndeton of stirring between circle are: on the lateral wall of dynamic gear ring, be provided with a ring annular groove, the madial wall stirring circle is evenly provided with at least three card columns, card column stretches in annular groove, and card column can drive dynamic gear ring move axially with stirring circle but do not hinder dynamic gear ring to rotate in a circumferential direction.
4. the speed reducing mechanism in multifunctional electric hammer according to claim 3, it is characterized in that: on the lateral wall stirring circle, be provided with outwardly guide pad, the madial wall of gear-box is provided with axial direction recess, guide pad is arranged in direction recess, stirs circle and is moved axially by guide pad and being engaged in gear-box of direction recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647410.5A CN104440793B (en) | 2014-11-17 | 2014-11-17 | Speed reducing mechanism in multifunctional electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647410.5A CN104440793B (en) | 2014-11-17 | 2014-11-17 | Speed reducing mechanism in multifunctional electric hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104440793A true CN104440793A (en) | 2015-03-25 |
| CN104440793B CN104440793B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647410.5A Active CN104440793B (en) | 2014-11-17 | 2014-11-17 | Speed reducing mechanism in multifunctional electric hammer |
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| CN (1) | CN104440793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116135443A (en) * | 2023-04-19 | 2023-05-19 | 北方阀门集团有限公司 | Single-source multi-independent-output mechanical transmission structure and clamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4468980A (en) * | 1981-11-27 | 1984-09-04 | Allis-Chalmers Corp. | Twin clutch pack for power shift transmission |
| JP2009208210A (en) * | 2008-03-05 | 2009-09-17 | Makita Corp | Hammer drill |
| CN201493824U (en) * | 2009-08-31 | 2010-06-02 | 制尚电器(浙江)有限公司 | Electric hammer of lithium battery |
| CN201559178U (en) * | 2009-12-03 | 2010-08-25 | 浙江大学 | Electric hammer drill having magnetic force impact change-over mechanism |
| CN102795531A (en) * | 2012-08-15 | 2012-11-28 | 柳州凯迪电梯设备有限责任公司 | Power transmission device for escalators |
| CN204322025U (en) * | 2014-11-17 | 2015-05-13 | 张家港市创基机械设备制造有限公司 | Speed reducing mechanism in multifunctional electric hammer |
-
2014
- 2014-11-17 CN CN201410647410.5A patent/CN104440793B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4468980A (en) * | 1981-11-27 | 1984-09-04 | Allis-Chalmers Corp. | Twin clutch pack for power shift transmission |
| JP2009208210A (en) * | 2008-03-05 | 2009-09-17 | Makita Corp | Hammer drill |
| CN201493824U (en) * | 2009-08-31 | 2010-06-02 | 制尚电器(浙江)有限公司 | Electric hammer of lithium battery |
| CN201559178U (en) * | 2009-12-03 | 2010-08-25 | 浙江大学 | Electric hammer drill having magnetic force impact change-over mechanism |
| CN102795531A (en) * | 2012-08-15 | 2012-11-28 | 柳州凯迪电梯设备有限责任公司 | Power transmission device for escalators |
| CN204322025U (en) * | 2014-11-17 | 2015-05-13 | 张家港市创基机械设备制造有限公司 | Speed reducing mechanism in multifunctional electric hammer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116135443A (en) * | 2023-04-19 | 2023-05-19 | 北方阀门集团有限公司 | Single-source multi-independent-output mechanical transmission structure and clamp |
| CN116135443B (en) * | 2023-04-19 | 2023-06-13 | 北方阀门集团有限公司 | Single-source multi-independent-output mechanical transmission structure and clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104440793B (en) | 2016-01-27 |
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