CN104249341A - Swinging power tool - Google Patents
Swinging power tool Download PDFInfo
- Publication number
- CN104249341A CN104249341A CN201310262960.0A CN201310262960A CN104249341A CN 104249341 A CN104249341 A CN 104249341A CN 201310262960 A CN201310262960 A CN 201310262960A CN 104249341 A CN104249341 A CN 104249341A
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- output shaft
- elastic component
- power tool
- swing
- head capsule
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Abstract
The invention relates to a swinging power tool which comprises a head shell and an output shaft arranged in the head shell, wherein a first bearing and a second bearing which are used for supporting the output shaft are arranged in the head shell, wherein a shifting fork fixed on the output shaft is arranged between the first bearing and the second bearing; the output shaft is provided with a working end part which is connected with an accessory working head; a limiting part is connected to the output shaft in a matched manner; the limiting part is positioned between the working end part and the second bearing; an elastic piece is arranged between the limiting part and the head shell. With the adoption of the swinging power tool, the elastic piece is arranged between the output shaft and the head shell and can effectively absorb the vibration generated by the output shaft, further the vibration of the output shaft transferred to the head shell is remarkably weakened, and thus the hand numbness of a user in the use process is greatly improved and the operation comfort level is improved; the elastic piece is arranged at a position, close to the auxiliary working head, of the lower end of the output shaft and can absorb the vibration generated by unbalanced swing caused by the auxiliary working head.
Description
Technical field
The present invention relates to a kind of power tool, particularly relate to a kind of swing-type power tool of hand-held.
Background technology
Multi Role Aircraft is the common swing class power tool of industry, and working method does oscillating motion for its output shaft around axial line.Therefore, after output shaft being provided with different operate accessories heads, different operating functions can be realized, as sawed, cutting, grind, scrape, to adapt to different work requirements.
Multi Role Aircraft comparatively common in the market, generally comprises motor.The motor drive shaft of motor is connected with cam pin, and cam pin is arranged with bearing, thus forms an eccentric wheel structure.When motor drive shaft rotates, eccentric wheel structure can do eccentric rotational motion around the axial line of motor drive shaft.The output shaft of Multi Role Aircraft is perpendicular to that motor drive shaft arranges, output shaft is fixedly connected with a pull-fork assembly, pull-fork assembly is formed with two relative adjutages and is surrounded by eccentric wheel structure, the inner side of two adjutages all with the bearing close contact in eccentric wheel structure, thus when eccentric wheel structure does eccentric rotary, eccentric wheel structure can drive the oscillating motion in pull-fork assembly generation horizontal direction, being fixedly connected with again by pull-fork assembly and output shaft, makes output shaft do rotary oscillation around its axial line.Like this, after the free end of output shaft connects different operate accessories heads, as straight blade, saw blade, triangle frosted dish etc., Multi Role Aircraft can realize multiple operation.
But, due in eccentric wheel structure, cam pin is set for the eccentric, in whole motion process, inevitably produce larger vibrations because of wobbler action face, this vibrations can act on the pull-fork assembly on eccentric wheel structure and by eccentric wheel driving always.Therefore, user, when long-time use Multi Role Aircraft, can produce larger numb feel and feel, be unfavorable for that user uses, be also harmful to the hand health of user.
Summary of the invention
Based on this, be necessary to provide a kind of swing-type power tool, the vibrations that output shaft produces can be effectively reduced.
A kind of swing-type power tool, comprise head capsule and be arranged at the output shaft in head capsule, the clutch shaft bearing and the second bearing that support described output shaft is provided with in described head capsule, the shift fork be fixed on described output shaft is provided with between described clutch shaft bearing and the second bearing, described output shaft has the working tips of coupling working head, described output shaft connects limited location portion, described limiting section, between described working tips and described second bearing, is provided with elastic component between described limiting section and described head capsule.
Wherein in an embodiment, described elastic component is spring, shell fragment or rubber blanket.
Wherein in an embodiment, between the center line of described elastic component and the axis of described output shaft, there is spacing.
Wherein in an embodiment, described elastic component extends along the tangential direction of described output shaft.
Wherein in an embodiment, described limiting section comprises the block be fixedly connected with output shaft and the supporting seat extended along the direction perpendicular to output shaft from described block, described elastic component is placed between described supporting seat and described head capsule, described supporting seat has relative with described head capsule and perpendicular to the sidewall of described output shaft, an end of described elastic component is resisted against described sidewall.
Wherein in an embodiment, described block has the locating surface perpendicular to described sidewall, and described elastic component is between described locating surface and described head capsule.
Wherein in an embodiment, the outer wall of described head capsule is fixed with the securing member stretched in described head capsule, the other end of described elastic component is resisted against the head of described securing member.
Wherein in an embodiment, described securing member is screw, is threaded connection between described screw and described head capsule.
Wherein in an embodiment, the sidewall of described supporting seat comprises the first side wall and the second sidewall of being located at supporting seat both sides, and described elastic component is provided with two places, is placed in described the first side wall respectively, between the second sidewall and described head capsule.
Wherein in an embodiment, the elastic component of described supporting seat both sides is symmetrical arranged relative to described supporting seat.
Above-mentioned swing-type power tool, be provided with elastic component between output shaft and head capsule, effectively can absorb the vibrations that output shaft produces, and then the vibrations that output shaft is passed on head capsule obviously weaken, substantially improve user and in use shake numb hand problem, improve the comfort level of operation; Elastic component is arranged on the position of output shaft lower end near operate accessories head, the vibrations that the swing imbalance that Absorbable rod causes because of operate accessories head produces.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic being connected with the swing-type power tool of operate accessories head of an embodiment;
Fig. 2 is for swing-type power tool shown in Fig. 1 is along the cross-sectional schematic of A-A line.
Related elements reference numeral in figure is as follows:
100, swing-type power tool 110, head capsule 112, clutch shaft bearing
114, the second bearing 116, first screw 118, second screw
120, output shaft 122, working tips 130, shift fork
140, operate accessories head 150, limiting section 152, block
1522, locating surface 154, supporting seat 1542, the first side wall
1544, the second sidewall 160, first elastic component 170, second elastic component
Detailed description of the invention
Below in conjunction with accompanying drawing, the better embodiment of swing-type power tool is described.
The shift fork 130 that the output shaft 120 please refer to Fig. 1, a kind of swing-type power tool 100, i.e. Multi Role Aircraft, comprise head capsule 110, extending in head capsule 110, one end are fixedly connected with output shaft 120.Output shaft 120 can do oscillating motion around himself axis X.Realize output shaft 120 and make the conventional mode of oscillating motion system employing swing tool, be namely connected with eccentric wheel by shift fork 130, eccentric wheel is connected with the driving shaft of motor again, thus is the oscillating motion of output shaft 120 by the convert rotational motion of the driving shaft of motor.Like this when output shaft 120 connecting different operate accessories heads, as straight blade, saw blade, triangle frosted dish etc., Multi Role Aircraft can realize multiple operation.
Head capsule 110 is roughly arranged in angle, as shown in Figure 1, has a working port to the right, shift fork 130 can be connected with the driving shaft of motor; Separately there is a working port down, make output shaft 120 extend head capsule, to be connected with operate accessories head 140.Be provided with upper and lower two bearing chambers in head capsule 110, be separately installed with clutch shaft bearing 112 and the second bearing 114, be used for common support output shaft 120, make the supporting & stablizing of output shaft 120 reliable, and then ensure swing-type power tool 100 steady operation.One end of shift fork 130 is fixedly connected on the position on output shaft 120 between clutch shaft bearing 112 and the second bearing 114.
Please refer to Fig. 1, output shaft 120 has the working tips 122 extending head capsule 110, to be connected with operate accessories head 140.Output shaft 120 connects limited location portion 150, the first elastic component 160 and the second elastic component 170 is provided with between limiting section 150 and head capsule 110, effectively can absorb the vibrations that output shaft 120 produces, and then the vibrations making output shaft 120 be delivered on head capsule 110 obviously weaken, substantially improve user and in use shake numb hand problem, improve the comfort level of operation.Limiting section 150 and output shaft 120 are formed in one, and also can be that two elements are linked together.
When swing-type power tool 100 works, shift fork 130 and eccentric wheel connection for transmission can cause output shaft 120 to shake, and in addition because output shaft 120 drives operate accessories head 140 to swing, operate accessories head 140 swings imbalance and causes the vibrations of output shaft 120 to aggravate.For this reason, in the present embodiment, the damping device that limiting section 150 and the first elastic component 160 and the second elastic component 170 are formed is arranged on the position between the second bearing 114 and the working tips 122 of output shaft 120, even if also the position of damping device is near operate accessories head 140, the vibrations that swing imbalance damping device can being absorbed cause because of operate accessories head 140 produces, therefore comparatively damping device is arranged on other positions, as the position near shift fork 130, the damping effect of the set-up mode of the present embodiment is more remarkable.
Please refer to Fig. 2, in the present embodiment, limiting section 150 comprises the block 152 be fixedly connected with output shaft 120 and the supporting seat 154 extended along the direction perpendicular to output shaft 120 from block 152.The both sides of supporting seat 154 are respectively equipped with the first side wall 1542 and the second sidewall 1544, and the first side wall 1542 and the second sidewall 1544 are all perpendicular to output shaft 120.On the outer wall of head capsule 110, corresponding the first side wall 1542 is threaded the first screw 116 stretched in head capsule 110, and corresponding second sidewall 1544 is threaded the second screw 118 stretched in head capsule 110.
First elastic component 160 is placed between the first side wall 1542 and head capsule 110, and one end is resisted against the first side wall 1542, and the other end is then resisted against the head of the first screw 116.Second elastic component 170 is placed between the second sidewall 1544 and head capsule 110, and one end is resisted against the second sidewall 1544, and the other end is then resisted against the head of the second screw 118.As shown in Figure 2, four-headed arrow illustrates the swaying direction of output shaft 120, and during output shaft 120 counter-clockwise swing, the first elastic component 160 is compressed; During output shaft 120 clockwise oscillation, the second elastic component 170 is compressed.When output shaft 120 reciprocally swinging, Repeated Compression first elastic component 160 and the second elastic component 170, thus make output shaft 120 be applied to vibrational energy on head capsule 110 to diminish because the distortion of the first elastic component 160 and the second elastic component 170 absorbs, thus make the vibrations of whole swing-type power tool 100 be absorbed and weaken, substantially improve user and in use shake numb hand problem, improve the comfort level of operation.First screw 116 and the second screw 118 position on head capsule 110 can regulate by rotating, and then can adjust the rate of tension of the first elastic component 160 and the second elastic component 170, ensures that two elastic components effectively can absorb the vibrations of output shaft 120 generation.First screw 116 and the second screw 118 can certainly be pin etc. other play the securing member of position-limiting action.
In the present embodiment, the first elastic component 160 and the second elastic component 170 all adopt spring, and the two is symmetrical arranged relative to supporting seat 154, therefore the two center line Y is consistent.Because the first elastic component 160 and the second elastic component 170 are all limited in the supporting seat 154 of outstanding output shaft 120 certain distance, therefore it is at regular intervals between the center line Y of the first elastic component 160 and the second elastic component 170 and the axis X of output shaft 120, first elastic component 160 and the second elastic component 170 are positioned on the swaying direction of output shaft 120, thus reach good damping effect; And in the present embodiment, first elastic component 160 and the second elastic component 170 all extend along the tangential direction of output shaft 120, the end of the first elastic component 160 and the second elastic component 170 vertically can be squeezed in when can ensure output shaft 120 reciprocally swinging like this, ensure enough stress surfaces, ensure the effect of the first elastic component 160 and the second elastic component 170 absorbing vibration thus.In addition, the first side wall 1542 and the second sidewall 1544, all perpendicular to output shaft 120, to coordinate with the end of the first elastic component 160 and the second elastic component 170 better, reach preferably vertical squeezing effect.Need point out, the first elastic component 160 and the second elastic component 170 can certainly be shell fragment, rubber blanket etc. other can realize the elastic component of phase same-action.
Block 152 is formed with a locating surface 1522 perpendicular to the first side wall 1542, second sidewall 1544, and supporting seat 154 is made by oneself in the middle part of plane 1522 and extended.First elastic component 160 and the second elastic component 170 are limited between block 152 and head capsule 110 from the side of the first elastic component 160 and the second elastic component 170 by locating surface 1522, offset to prevent the position of the first elastic component 160 and the second elastic component 170 in output shaft 120 swing process.
To sum up, the swing-type power tool 100 of the present embodiment, by arranging damping device in output shaft 120 lower end near the tangent position of operate accessories head 140, be out of shape the vibrational energy absorbing output shaft and produce in the course of the work by the buffering of elastic component, thus avoid the vibration too much energy transferring to head capsule 110 causing complete machine.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a swing-type power tool, comprise head capsule and be arranged at the output shaft in head capsule, the clutch shaft bearing and the second bearing that support described output shaft is provided with in described head capsule, the shift fork be fixed on described output shaft is provided with between described clutch shaft bearing and the second bearing, described output shaft has the working tips of coupling working head, it is characterized in that, described output shaft connects limited location portion, described limiting section, between described working tips and described second bearing, is provided with elastic component between described limiting section and described head capsule.
2. swing-type power tool according to claim 1, is characterized in that, described elastic component is spring, shell fragment or rubber blanket.
3. swing-type power tool according to claim 1, is characterized in that, there is spacing between the center line of described elastic component and the axis of described output shaft.
4. swing-type power tool according to claim 3, is characterized in that, described elastic component extends along the tangential direction of described output shaft.
5. swing-type power tool according to claim 4, it is characterized in that, described limiting section comprises the block be fixedly connected with output shaft and the supporting seat extended along the direction perpendicular to output shaft from described block, described elastic component is placed between described supporting seat and described head capsule, described supporting seat has relative with described head capsule and perpendicular to the sidewall of described output shaft, an end of described elastic component is resisted against described sidewall.
6. swing-type power tool according to claim 5, is characterized in that, described block has the locating surface perpendicular to described sidewall, and described elastic component is between described locating surface and described head capsule.
7. swing-type power tool according to claim 5, is characterized in that, the outer wall of described head capsule is fixed with the securing member stretched in described head capsule, and the other end of described elastic component is resisted against the head of described securing member.
8. swing-type power tool according to claim 7, is characterized in that, described securing member is screw, is threaded connection between described screw and described head capsule.
9. the swing-type power tool according to claim arbitrary in claim 1 to 8, it is characterized in that, the sidewall of described supporting seat comprises the first side wall and the second sidewall of being located at supporting seat both sides, described elastic component is provided with two places, is placed in described the first side wall respectively, between the second sidewall and described head capsule.
10. swing-type power tool according to claim 9, is characterized in that, the elastic component of described supporting seat both sides is symmetrical arranged relative to described supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262960.0A CN104249341A (en) | 2013-06-27 | 2013-06-27 | Swinging power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262960.0A CN104249341A (en) | 2013-06-27 | 2013-06-27 | Swinging power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104249341A true CN104249341A (en) | 2014-12-31 |
Family
ID=52184763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310262960.0A Pending CN104249341A (en) | 2013-06-27 | 2013-06-27 | Swinging power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104249341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434411A (en) * | 2019-08-13 | 2019-11-12 | 南京工程学院 | A kind of two-way unbalance loading balancing device of horizontal axis swing |
Citations (7)
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|---|---|---|---|---|
| US6926595B2 (en) * | 2002-04-30 | 2005-08-09 | C.&E. Fein Gmbh & Co. Kg | Oscillatory drive |
| CN201821205U (en) * | 2010-10-01 | 2011-05-04 | 苏州宝时得电动工具有限公司 | Swinging power tool |
| US8096856B2 (en) * | 2007-04-19 | 2012-01-17 | Robert Bosch Gmbh | Motor-driven machine tool |
| CN102328305A (en) * | 2010-07-12 | 2012-01-25 | 苏州宝时得电动工具有限公司 | Power tool |
| CN102441873A (en) * | 2010-10-01 | 2012-05-09 | 苏州宝时得电动工具有限公司 | Swinging power tool |
| CN102896619A (en) * | 2011-07-26 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Power tool and operation method thereof |
| US8381833B2 (en) * | 2009-09-24 | 2013-02-26 | Robert Bosch Gmbh | Counterbalance for eccentric shafts |
-
2013
- 2013-06-27 CN CN201310262960.0A patent/CN104249341A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6926595B2 (en) * | 2002-04-30 | 2005-08-09 | C.&E. Fein Gmbh & Co. Kg | Oscillatory drive |
| US8096856B2 (en) * | 2007-04-19 | 2012-01-17 | Robert Bosch Gmbh | Motor-driven machine tool |
| US8381833B2 (en) * | 2009-09-24 | 2013-02-26 | Robert Bosch Gmbh | Counterbalance for eccentric shafts |
| CN102328305A (en) * | 2010-07-12 | 2012-01-25 | 苏州宝时得电动工具有限公司 | Power tool |
| CN201821205U (en) * | 2010-10-01 | 2011-05-04 | 苏州宝时得电动工具有限公司 | Swinging power tool |
| CN102441873A (en) * | 2010-10-01 | 2012-05-09 | 苏州宝时得电动工具有限公司 | Swinging power tool |
| CN102896619A (en) * | 2011-07-26 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Power tool and operation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434411A (en) * | 2019-08-13 | 2019-11-12 | 南京工程学院 | A kind of two-way unbalance loading balancing device of horizontal axis swing |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141231 |