CN108972457A - A kind of electric hammer - Google Patents
A kind of electric hammer Download PDFInfo
- Publication number
- CN108972457A CN108972457A CN201811226954.9A CN201811226954A CN108972457A CN 108972457 A CN108972457 A CN 108972457A CN 201811226954 A CN201811226954 A CN 201811226954A CN 108972457 A CN108972457 A CN 108972457A
- Authority
- CN
- China
- Prior art keywords
- clutch
- electric hammer
- arrangement
- jackshaft
- rotary components
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000013011 mating Effects 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/006—Mode changers; Mechanisms connected thereto
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention provides a kind of electric hammers, it include: jackshaft, arrangement of clutch, Oscillating lever bearing and function changing-over mechanism, wherein function changing-over mechanism includes switch boards and knob assembly, and switch boards include the through-hole with the clamping section of arrangement of clutch cooperating and with knob assembly mating reaction；Knob assembly include switching pin and with jackshaft elastic supporting member for supporting optical member disposed in parallel, knob assembly is arranged in the groove of switch boards side in elastic supporting member for supporting optical member；Perpendicular to the elastic supporting member for supporting optical member, one end is located in groove in the other end insertion through-hole switching pin.The present invention provides a kind of electric hammer, can both maintain smooth function switch, and compact type also may be implemented, and reduces the cost of electric hammer.
Description
Technical field
The invention belongs to field of power tools, in particular to a kind of electric hammer.
Background technique
For electric hammer, there is widely known structure, such as Chinese utility model patent ZL201721091819.9,
Enclosure interior has the jackshaft for being motor driven rotation, further includes the clutch dress being made of the first clutch part and the second clutch part
It sets, which is connected between on axis.Shift spring, the shift spring are equipped on the first clutch part and the second clutch part
It can guarantee that the first clutch part and the second clutch part maintain a certain distance on the axial direction along jackshaft.With centre
On the position of axis parallel, spaced-apart certain distance, it is provided with guide post, the both ends of guide post set that there are two elastic elements, in the two bullets
Property element between be equipped with locking plate and shift piece.Locking plate is equipped with multiple teeth, these teeth and electric hammer in one end far from shift piece
The selectable mutual cooperation connection of tripping gear wheel on main shaft, the locking plate also have the extension extended along guide post direction
Portion, the extension are covered on the outer surface of shift piece, and shift piece is prevented to overturn around guide post.Shifting gears, there are two extend for piece tool
End, is respectively acting on the first clutch part and the second clutch part, which also has a through-hole.The power and energy of electric hammer
Mechanism includes knob assembly, which includes that torsion and eccentric switching mechanism are dialled in operation, and bias switching mechanism setting is being leaned on
Closely on the inner surface of the knob assembly of shift piece, and operates to dial to turn round and the outer of the knob assembly to oppose with eccentric switching mechanism is set
On surface, user can be dialled by operation operation and twist into row model selection and switching.Wherein, eccentric switching mechanism include switching pin and
Semicircle switch piece, the switching pin are plugged in the through-hole for being located at shift on piece, drive first by rotation knob assembly
Clutch part and the second clutch part are on jackshaft along the axial movement of jackshaft.
Another electric hammer as shown in the special permission of Japanese invention patent bulletin 2828657, is matched in clutch components with it
Component card and when, cannot swimmingly block there are the consistent pawl of phase because interfering and the case where, therefore, be arranged in electric hammer
There is right elastomeric element for making arrangement of clutch component in elastic force, for passing through arrangement of clutch component under the action of elastic force
Sliding with counterpart card and.But such scheme can make the size of jackshaft become larger in the circumferential, cause shell large-scale
Change and improves electric hammer cost.
Summary of the invention
For the above-mentioned problems in the prior art, the present invention provides a kind of electric hammer, can both maintain smooth function
Switching, also may be implemented compact type, and reduce the cost of electric hammer.
In order to reach the goals above, according to one aspect of the present invention, a kind of electric hammer is provided, comprising: jackshaft can be driven
Turn is dynamic；Arrangement of clutch, the arrangement of clutch are connected to the jackshaft, can move horizontally relative to the jackshaft, described
One end of arrangement of clutch has arrangement of clutch boss；Oscillating lever bearing is arranged on the jackshaft, has and the arrangement of clutch
The Oscillating lever bearing boss of boss cooperation；It further include function changing-over mechanism, the function changing-over mechanism includes switch boards and set of knobs
Part, wherein switch boards include and the clamping section of the arrangement of clutch cooperating and logical with the knob assembly mating reaction
Hole；The knob assembly include switching pin and with jackshaft elastic supporting member for supporting optical member disposed in parallel, the elastic supporting member for supporting optical member sets
It sets in the knob assembly in the groove of the switch boards side；The switching pin is perpendicular to the elastic supporting member for supporting optical member, and one
End is located at the other end in the groove and is inserted into the through-hole.
According to an aspect of the present invention, the through-hole through-hole triangular in shape in the switch boards, the switching pin are inserted
Entering has at least two shift positions in the through-hole.
According to an aspect of the present invention, the through-hole in the switch boards is vertically arranged with the clamping section.
According to an aspect of the present invention, the electric hammer further includes shell, the jackshaft, arrangement of clutch and Oscillating lever bearing
It is respectively positioned on the enclosure interior, the shell includes the arc-shaped sliding rail in housing outer surface.
It according to an aspect of the present invention, further include spring and locking pin inside the rotary components, the spring and institute
It is parallel to state elastic supporting member for supporting optical member, and one end is resisted against one end on the rotary components and is resisted against on the locking pin.
According to an aspect of the present invention, the rotary components further include locking piece, are protruded from outside the rotary components,
It is fixedly connected between the spring and the locking pin, and with the locking pin.
According to an aspect of the present invention, the fixed pin can be transported in the sliding rail with the rotation of the rotary components
It is dynamic.
According to an aspect of the present invention, for the sliding rail tool there are two clamping part, the clamping part is outwardly extending convex
The portion of rising, can be fixed on the clamping part for the locking piece.
It according to an aspect of the present invention, further include pedestal, in the groove of the rotary components, the switching pin is solid
Determine on the base, and the pedestal can move under the action of the elastic supporting member for supporting optical member relative to the rotary components level
It is dynamic.
According to an aspect of the present invention, the arrangement of clutch is circumferentially equipped with recess portion, the switch boards and it is described from
The clamping section semicircular in shape for setting cooperation is attached together, the recess portion of the arrangement of clutch is fastened on.
Therefore, a kind of electric hammer provided by the invention setting spring in rotation is dialled and turned round makes switching pin and Pivot axle
Distance is an on-fixed value, even if when the case where encountering arrangement of clutch boss and Oscillating lever bearing boss face, it also can be smooth
Switching；Cancel and the axial dimension that spring does not increase machine is set on jackshaft, so that machine is compact；Processing technology is simple, section
About cost.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is A-A partial sectional view in Fig. 1.
Fig. 3 is knob assembly rearview in Fig. 1.
Fig. 4 is switch boards perspective view in Fig. 1.
In figure, 1. rotary components；2. spring；3. switching pin；4. switch boards；41. through slot；411. first position；412. the
Two positions；413. the third place；42. clamping section；5. jackshaft；6. arrangement of clutch；61. arrangement of clutch boss；7. Oscillating lever bearing；
71. Oscillating lever bearing boss；8. elastic supporting member for supporting optical member；9. locking piece；10. locking pin；11. groove；12. pedestal；13. sliding rail；14.
Clamping part；15. shell.
Specific embodiment
A specific embodiment of the invention, as shown in Figs 1-4, a kind of electric hammer, including shell 15, the enclosure interior are equipped with
The jackshaft 5, arrangement of clutch 6 and Oscillating lever bearing 7 of rotation can be motor driven, wherein arrangement of clutch 6 is connected on jackshaft 5,
It can be moved horizontally relative to jackshaft 5, and one end of arrangement of clutch has arrangement of clutch boss 61；Oscillating lever bearing 7 is also disposed at
On jackshaft 5, there is the Oscillating lever bearing boss 71 cooperated with arrangement of clutch boss 61.
The electric hammer further includes function changing-over mechanism, which includes switch boards 4 and knob assembly 1.Switch boards 4
Including with 6 cooperating of arrangement of clutch clamping section 42 and with the through-hole 41 of knob assembly mating reaction.The clamping section 42 is in half
Circle, arrangement of clutch 6 are circumferentially equipped with recess portion, when arrangement of clutch and switch boards cooperating, semicircle clamping section
It is fastened on the recess portion of arrangement of clutch 6.Switch boards 4 are L-shaped, the plane where through-hole thereon 41 it is parallel with jackshaft 5 and with folder
Tight portion 42 is vertical.The through-hole triangular in shape of through-hole 41, so that rotary components 1, which are inserted into through-hole 41, at least two shift positions,
The present embodiment provides three positions: first position 411, the second position 412, the third place 413.
Knob assembly includes switching pin 3 and elastic supporting member for supporting optical member 8, which is arranged in parallel with jackshaft 5.The rotation
Button component is being equipped with groove 11 close to 4 side of switch boards, and the end of the switching pin 3 and elastic supporting member for supporting optical member 8 are respectively positioned on the groove 11
It is interior.Perpendicular to 3 elastic supporting member for supporting optical member 8, one end is located in groove in other end insertion through-hole 41 switching pin 3.Switching pin is resisted against
On the elastic supporting member for supporting optical member, so switching pin can move horizontally under the action of the elastic supporting member for supporting optical member relative to the rotary components.
For the present embodiment preferably using being fixed on switching pin on the pedestal 12 in groove 11, pedestal 12 is resisted against the elastic supporting member for supporting optical member
On, the pedestal 12 and switching pin are moved horizontally relative to the rotary components together under the action of elastic supporting member for supporting optical member.
Knob assembly further includes spring 2 and locking pin 10, and wherein spring 2 is parallel with elastic supporting member for supporting optical member 8, and one end is resisted against
One end is resisted against on locking pin 10 on rotary components.Shell 15 includes the arc-shaped sliding rail 13 on 15 outer surface of shell, Gu
Rationed marketing 10 can move in sliding rail 13 with the rotation of rotary components.The sliding rail 13 also has there are two clamping part 14, the clamping part
14 be outwardly extending lug boss, when fixed pin 10 moves to the two clamping parts 14 with rotary components, in the work of spring 2
It is maintained at presetting position under, realizes the switching of function.Locking piece 9 is arranged in the present embodiment preferably on rotary components,
It protrudes from outside rotary components, is fixedly connected between spring 2 and locking pin 10, and with locking pin 10.Card ought be rotated to
When buckle, by pressure-locking the further compressed spring 2 of part 9 and locking pin 10 being made to exit clamping part, and then it is unlocked.
As shown in figure 4, there are three position, first position 411, the second position 412 and the third places 413 for the tool of through-hole 41.Electricity
When drill jig formula, when switching pin is located at first position 411, by rotary components counter-rotating 90, if the boss of arrangement of clutch and
When the boss face of Oscillating lever bearing, switching pin can climb to the second position, and elasticity of compression supporting element along slope oil the third place,
Electric hammer is opened, when machine starts running, the boss for waving bearing can be rotated first, mutually stagger both i.e. to go out when going to two boss
When the position of engagement, switching pin can be switched to the third place by the second position again under the action of compressed spring, and drive switching
Plate is i.e. mobile close to the direction of Oscillating lever bearing to the right, so that arrangement of clutch is sufficiently engaged with Oscillating lever bearing, that is, realizes smooth
It is switched to hammer drill mode.
Therefore a kind of electric hammer provided by the invention, can both maintain smooth function switch, compact machine also may be implemented
Type, and reduce the cost of electric hammer.
To the disclosed embodiments, it is not restricted to embodiment illustrated herein specifically.For any made by the present invention
Modification, equivalent replacement, improvement etc., are within the scope of protection of the invention.
Claims (10)
1. a kind of electric hammer, comprising:
Jackshaft can be rotated by driving；
Arrangement of clutch, the arrangement of clutch are connected to the jackshaft, can move horizontally relative to the jackshaft, the clutch
One end of device has arrangement of clutch boss；
Oscillating lever bearing is arranged on the jackshaft, has the Oscillating lever bearing boss cooperated with the arrangement of clutch boss；
It is characterized in that, further including function changing-over mechanism, the function changing-over mechanism includes switch boards and knob assembly, wherein cutting
Changing plate includes the through-hole with the clamping section of the arrangement of clutch cooperating and with the knob assembly mating reaction；The knob
Component include switching pin and with jackshaft elastic supporting member for supporting optical member disposed in parallel, the elastic supporting member for supporting optical member is arranged in the knob
Component is in the groove of the switch boards side；The switching pin is located at described recessed perpendicular to the elastic supporting member for supporting optical member, one end
The other end is inserted into the through-hole in slot.
2. a kind of electric hammer according to claim 1, it is characterised in that: the through-hole in the switch boards is triangular in shape logical
Hole, the switching pin, which is inserted into the through-hole, at least two shift positions.
3. a kind of electric hammer according to claim 1, it is characterised in that: the through-hole and the clamping in the switch boards
Portion is vertically arranged.
4. a kind of electric hammer according to claim 1, it is characterised in that: the electric hammer further includes shell, the jackshaft, from
It attaches together to set and is respectively positioned on the enclosure interior with Oscillating lever bearing, the shell includes the arc-shaped sliding rail in housing outer surface.
5. a kind of electric hammer according to claim 4, it is characterised in that: further include spring and locking inside the rotary components
Pin, the spring is parallel with the elastic supporting member for supporting optical member, and one end is resisted against one end on the rotary components and is resisted against the locking
On pin.
6. a kind of electric hammer according to claim 5, it is characterised in that: the rotary components further include locking piece, are protruded from
Outside the rotary components, it is fixedly connected between the spring and the locking pin, and with the locking pin.
7. a kind of electric hammer according to claim 6, it is characterised in that: the fixed pin can turn with the rotary components
It moves and is moved in the sliding rail.
8. a kind of electric hammer according to claim 7, it is characterised in that: there are two clamping part, the buckles for the sliding rail tool
Portion is outwardly extending lug boss, the locking piece can be fixed on the clamping part.
9. a kind of electric hammer according to claim 1, it is characterised in that: further include pedestal, positioned at the recessed of the rotary components
In slot, the switching pin is fixed on the base, and the pedestal can be relative to institute under the action of the elastic supporting member for supporting optical member
Rotary components are stated to move horizontally.
10. a kind of electric hammer according to claim 1, it is characterised in that: the arrangement of clutch is circumferentially equipped with recess portion, institute
The clamping section semicircular in shape for stating switch boards and arrangement of clutch cooperation, is fastened on the recess portion of the arrangement of clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226954.9A CN108972457A (en) | 2018-10-22 | 2018-10-22 | A kind of electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226954.9A CN108972457A (en) | 2018-10-22 | 2018-10-22 | A kind of electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108972457A true CN108972457A (en) | 2018-12-11 |
Family
ID=64544535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811226954.9A Pending CN108972457A (en) | 2018-10-22 | 2018-10-22 | A kind of electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108972457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062983A1 (en) * | 2020-09-25 | 2022-03-31 | 南京泉峰科技有限公司 | Electric hammer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020046847A1 (en) * | 2000-10-20 | 2002-04-25 | Hitachi Koki Co., Ltd. | Operation mode switching mechanism for a hammer drill |
| US20080245542A1 (en) * | 2007-01-26 | 2008-10-09 | Makita Corporation | Hammer drill |
| CN102873669A (en) * | 2012-10-15 | 2013-01-16 | 浙江恒友机电有限公司 | One-button multifunctional switching structure |
| CN202964594U (en) * | 2012-12-18 | 2013-06-05 | 李跃辉 | Hammer drill clutch switching mechanism of multifunctional electric hammer |
| CN203019322U (en) * | 2011-11-17 | 2013-06-26 | 株式会社牧田 | Electric hammer |
| CN107336199A (en) * | 2017-08-01 | 2017-11-10 | 江苏东成机电工具有限公司 | Multifunctional electric hammer |
| CN209599142U (en) * | 2018-10-22 | 2019-11-08 | 浙江皇冠电动工具制造有限公司 | A kind of electric hammer |
-
2018
- 2018-10-22 CN CN201811226954.9A patent/CN108972457A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020046847A1 (en) * | 2000-10-20 | 2002-04-25 | Hitachi Koki Co., Ltd. | Operation mode switching mechanism for a hammer drill |
| US20080245542A1 (en) * | 2007-01-26 | 2008-10-09 | Makita Corporation | Hammer drill |
| CN203019322U (en) * | 2011-11-17 | 2013-06-26 | 株式会社牧田 | Electric hammer |
| CN102873669A (en) * | 2012-10-15 | 2013-01-16 | 浙江恒友机电有限公司 | One-button multifunctional switching structure |
| CN202964594U (en) * | 2012-12-18 | 2013-06-05 | 李跃辉 | Hammer drill clutch switching mechanism of multifunctional electric hammer |
| CN107336199A (en) * | 2017-08-01 | 2017-11-10 | 江苏东成机电工具有限公司 | Multifunctional electric hammer |
| CN209599142U (en) * | 2018-10-22 | 2019-11-08 | 浙江皇冠电动工具制造有限公司 | A kind of electric hammer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062983A1 (en) * | 2020-09-25 | 2022-03-31 | 南京泉峰科技有限公司 | Electric hammer |
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