CN205852696U - Electric hammer and power tool - Google Patents
Electric hammer and power tool Download PDFInfo
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- CN205852696U CN205852696U CN201620248934.1U CN201620248934U CN205852696U CN 205852696 U CN205852696 U CN 205852696U CN 201620248934 U CN201620248934 U CN 201620248934U CN 205852696 U CN205852696 U CN 205852696U
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- external tooth
- driving member
- kind external
- electric hammer
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Abstract
The utility model discloses a kind of power tool, it is specially a kind of electric hammer, electric hammer includes: rotary components, motor, transmission component and arrangement of clutch, rotary components is used for making electric hammer export revolving force, transmission component is for being transferred to rotary components by the power that motor exports, transmission component also includes driving member and actuator, driving member constitutes synchronous axial system with rotary components, actuator rotates when being motor driven, and arrangement of clutch can make actuator move forward to along its pivot center direction contact with driving member or be moved rearwardly into depart from driving member；Actuator is formed with first kind external tooth and Equations of The Second Kind external tooth, first kind external tooth and Equations of The Second Kind external tooth and all extends along the direction of the pivot center being parallel to actuator；On the direction along the pivot center being parallel to actuator, the front end of first kind external tooth is protruded relative to the front end of Equations of The Second Kind external tooth.Actuator easily makes driving member coordinate, so that electric hammer easily realizes putting into gear with actuator composition transmission when moving to driving member.
Description
Technical field
This utility model relates to a kind of power tool, is specifically related to a kind of electric hammer.
Background technology
Existing rotation class instrument often can also export impact, such as electric hammer while output moment of torsion, and it both can be defeated
Go out reciprocal impact and can also export moment of torsion or both output simultaneously.Required in order to allow users to switch as required
Mode of operation, is often provided with complex drive mechanism and the corresponding clutch for operation in these electric tools.Its
In, drive mechanism would generally including, two can engage each other or out-of-gear gear under the effect of clutch.But,
For the structure of existing gear, close to each other to be easy to occurring what clamping was not gone up during realizing engagement at two gears
Problem.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is the electric hammer providing a kind of easy realization to put into gear.
A kind of electric hammer, including: rotary components, motor, transmission component and arrangement of clutch, rotary components is used for making electric hammer export
Revolving force, motor is formed with motor shaft, and transmission component is for being transferred to rotary components by the power that motor exports, and transmission component is also
Including driving member and actuator, driving member constitutes synchronous axial system with rotary components, and actuator rotates when being motor driven, clutch
Device actuator can be made to move forward to along the pivot center direction of actuator to contact with driving member to drive driving member to rotate or
Person is moved rearwardly into and departs from driving member；Wherein, the periphery of actuator is formed: first kind external tooth and Equations of The Second Kind external tooth, and first
Class external tooth extends along the direction of the pivot center being parallel to actuator, and Equations of The Second Kind external tooth edge is parallel to the pivot center of actuator
Direction extends；On the direction along the pivot center being parallel to actuator, the front end of first kind external tooth is relative to Equations of The Second Kind external tooth
Front end is protruded.
Further, first kind external tooth has the first axial length in their extension direction, and Equations of The Second Kind external tooth extends at it
Having the second axial length on direction, wherein, the first axial length is more than the second axial length.
Further, it is provided with an Equations of The Second Kind external tooth between two adjacent first kind external tooths.
Further, on the direction along the pivot center being parallel to actuator, the rear end of first kind external tooth and Equations of The Second Kind
The rear end alignment of external tooth.
Further, actuator is also formed with: clutch part, and clutch part is moved make actuator with arrangement of clutch when coordinating before and after
Dynamic；Wherein, clutch part and first kind external tooth are arranged on the axially different position of actuator.
Further, electric hammer also includes: impact assembly, central shaft, Oscillating lever bearing and the second actuator, and impact assembly is used for
Making electric hammer export impulsive force, central shaft is when being motor driven around center axis thereof, and Oscillating lever bearing includes installing to central shaft
Wobble-plate and with the impact swing arm that is connected of assembly, the second actuator, the driving wobble-plate rotation when contact with Oscillating lever bearing；
Wherein, actuator and the second actuator constitute synchronous axial system with central shaft respectively.
A kind of power tool, including: housing, output, prime mover, transmission component and arrangement of clutch, output is for defeated
Going out power, prime mover is contained in housing, and transmission component is transferred to output for prime mover is exported power, and transmission component is also
Including driving member and actuator, driving member drives output to export power when it rotates, and actuator is when by prime mover driven
Rotate；Arrangement of clutch can make actuator move forward to contact with driving member to drive transmission along the pivot center direction of actuator
Part rotates or is moved rearwardly into and departs from driving member；Wherein, the periphery of actuator is formed: outside first kind external tooth and Equations of The Second Kind
Tooth, first kind external tooth extends along the direction of the pivot center being parallel to actuator, and Equations of The Second Kind external tooth is along being parallel to turning of actuator
The direction of moving axis line extends；On the direction along the pivot center being parallel to actuator, the front end of first kind external tooth is relative to second
The front end of class external tooth is protruded.
Further, first kind external tooth has the first axial length in their extension direction, and Equations of The Second Kind external tooth extends at it
Having the second axial length on direction, wherein, the first axial length is more than the second axial length.
Further, it is provided with an Equations of The Second Kind external tooth between two adjacent first kind external tooths.
Further, driving member is the drive that periphery is formed with driving cog；First kind external tooth has in their extension direction
There is the first axial length, and the axial length of drive is less than the first axial length of first kind external tooth.
Actuator includes the Equations of The Second Kind external tooth of relative first kind external tooth pinch in, thus actuator is moving to driving member
Shi Rongyi makes driving member coordinate with actuator composition transmission, and then makes electric hammer easily realize putting into gear.
Accompanying drawing explanation
Fig. 1 is the structural representation of electric hammer；
Fig. 2 is the schematic diagram of the interior section structure of the electric hammer in Fig. 1；
Fig. 3 is the sectional view of the part-structure in Fig. 2；
Fig. 4 is the axonometric chart of the arrangement of clutch in Fig. 2；
Fig. 5 is the axonometric chart of the tumbler in Fig. 4；
Fig. 6 is the axonometric chart of the flexible member in Fig. 4；
Fig. 7 is the first clutch part in Fig. 2, the second clutch part, actuator and the axonometric chart of the second actuator；
Fig. 8 is structural representation when contacting with driving member of the actuator in Fig. 2；
Fig. 9 is the actuator in Fig. 2 and structural representation during driving member disengaging；
Figure 10 is the axonometric chart of the actuator in Fig. 8；
Figure 11 is the front view of the actuator in Fig. 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model made concrete introduction.
The utility model proposes a kind of power tool, this power tool can be the electric hammer 100 in such as Fig. 1.Such as Fig. 1 institute
Showing, electric hammer 100 includes housing 11, switch 12, battery bag 13, motor 14, drive mechanism 15, chuck 16 and secondary handle 17.
Wherein, housing 11 defines the shell of electric hammer 100, and it is for accommodating each parts within electric hammer 100.Housing 11 wraps
Include: handle portion the 111, first receiving portion 112 and the second receiving portion 113.Wherein, handle portion 111 and the first receiving portion 112 are arranged at
The homonymy of the second receiving portion 113, and handle portion 111 is almost parallel with the bearing of trend of the first receiving portion 112.Specifically,
Hand 111 is for gripping for user, and it is also provided at the end of the second receiving portion 113.First receiving portion 112 is internal to be used for holding
Nano circuit plate, the first receiving portion 112 is arranged at the substantially middle part of the second receiving portion 113, and the first receiving portion 112 is away from
One end of two receiving portions 113 is additionally operable to combine battery bag 13.Second receiving portion 113 is used for accommodating motor 14 and drive mechanism 15
Deng.
Switch 12 can be installed on handle portion 111, and near the second receiving portion 113, so, user is gripping handle portion
When 111, it is possible to trigger switch 12 the most easily, this switch 12 can be the master switch starting motor 14.
Battery bag 13 is for providing energy source for electric hammer 100, and battery bag 13 dismountable can be bound to the first receiving
Portion 112.
Motor 14 is as prime mover of electric hammer 100, and it is arranged in the second receiving portion 113 of housing 11, and motor 14 is used for
The electric energy that battery bag 13 provides is converted into power export to drive mechanism 15.For power tool, motor 14 can also
Prime mover for other forms such as engines.Drive mechanism 15 is arranged between motor 14 and chuck 16, for being exported by motor 14
Power be transferred to the adnexa such as drill bit, chisel head.
Chuck 16 is as the output of electric hammer 100, and it is used for exporting power.Chuck 16 can also be by the adnexa such as drill bit, chisel head
It is mounted on electric hammer 100.
Secondary handle 17 is for supplying user's another hands when gripping handle portion 111 on the other hand to grip, and so, two handss are substantially
Grip two positions before and after whole electric hammer 100 respectively so that the center of gravity of electric hammer 100 is located substantially between two handss, and raising is held
The stability held.
As shown in Figures 2 and 3, electric hammer 100 also includes: arrangement of clutch 18；Motor 14 includes: motor shaft 141；Drive mechanism
15 include: transmission component 20, rotary components 25 and impact assembly 26.Transmission component 20 is for the power transmission exported by motor 14
To chuck 16, further power can be transferred to rotary components 25 or the impact assembly 26 being connected with chuck 16 by it.Pass
Dynamic assembly 20 includes: central shaft 19, Oscillating lever bearing 21, driving member 22, actuator 23 and the second actuator 24.Wherein, clutch dress
Putting 18 for realizing the switching to the transmission mode of drive mechanism 15, rotary components 25 is used for so that electric hammer 100 exports revolving force,
Impact assembly 26 is used for so that electric hammer 100 exports impulsive force.
Motor shaft 141 can rotate with electrical axis 101 for axle, and motor shaft 141 is formed or is fixedly connected with output gear
141a.Output gear 141a is for exporting the power of motor 14 to central shaft 19.
Central shaft 19 extends approximately along the direction of the central axis 102 being parallel to electrical axis 101, and central shaft 19 is near electricity
One end of arbor 141 is also formed with or is fixedly connected with input gear 191.Input gear 191 can be with the output of motor shaft 141
Gear 141a engages, and so, after motor 14 starts, motor shaft 141 rotates with its electrical axis 101 for axle, now output gear
Wheel 141a engages with input gear 191, thus drives central shaft 19 to rotate with central axis 102 for axle.
Oscillating lever bearing 21 includes: wobble-plate 211 and swing arm 212.Wherein, wobble-plate 211 is installed to central shaft 19, and
Can rotate relative to central shaft 19, swing arm 212 is connected with impact assembly 26.When the wobble-plate 211 of Oscillating lever bearing 21 rotates, pendulum
Lever 212 drives impact assembly 26 to move back and forth, thus outputs power to the adnexa such as drill bit, chisel head, drives drill bit, chisel head etc.
Workpiece is impacted by adnexa, it is achieved the function of the chisel of electric hammer 100.
Driving member 22 and rotary components 25 constitute synchronous axial system, thus can pass through rotary components 25 when driving member 22 rotates
Chuck 16 is driven to export power.Wherein, when synchronous axial system refers to a rotation in driving member 22 and rotary components 25,
When the rotation of in another also concomitant rotation, and driving member 22 and rotary components 25 is limited, another rotation is also
Limited therewith.The concept of this synchronous axial system is also applied in this case other parts constituting synchronous axial system, repeats no more.
Actuator 23 and the second actuator 24 all can rotate when being driven by motor 14, specifically, and actuator 23 and
Two actuators 24 are mounted respectively on central shaft 19, and constitute synchronous axial system with central shaft 19 respectively.Wherein, actuator 23 with
Driving member 22 can be driven when driving member 22 contacts to rotate, and swing can be driven when the second actuator 24 contacts with Oscillating lever bearing 21
Dish 211 rotates
Therefore, when central shaft 19 rotates with central axis 102 for axle, if actuator 23 contacts with driving member 22 and
Two actuators 24 depart from Oscillating lever bearing 21, then now rotary components 25 can drive the adnexa such as drill bit, chisel head to rotate；And if
Actuator 23 departs from driving member 22 and the second actuator 24 contacts with Oscillating lever bearing 21, then now impact assembly 26 can drive
The adnexa such as drill bit, chisel head moves back and forth；And if actuator 23 contacts with driving member 22 and the second actuator 24 and Oscillating lever bearing
21 contacts, then now rotary components 25 drives the adnexa such as drill bit, chisel head to rotate impact assembly 26 simultaneously and drives drill bit, chisel head etc.
Adnexa moves back and forth.
Introduce the structure of arrangement of clutch 18 in detail below and how it makes actuator 23 and the position of the second actuator 24
Put and convert:
As shown in Figure 4, arrangement of clutch 18 includes: guide the 27, first clutch part the 28, second clutch part 29, tumbler 31
With flexible member 32.
Guide 27 is a guide post, and guide post extends approximately along the direction being parallel to electrical axis 101.Guide 27
Fix relative to the position of housing 11 in housing 11.First clutch part 28 can slide by counter-guide 27, and the second clutch part 29 is also
Can slide by counter-guide 27.Tumbler 31 can rotate with the first axle 103 being perpendicular to electrical axis 101 for axle, tumbler
The first supporting part 311 and the second supporting part 312 it is formed with on 31.Flexible member 32 includes first connection leg the 321, second connection leg
322 and connect the first connection leg 321 and elastic joint part 323 of the second connection leg 322.First connection leg 321 and first supports
Portion 311 contacts, and the second connection leg 322 contacts with the second supporting part 312, and the first connection leg 321 and the second connection leg 322 are respectively
Contact with the first supporting part 311 and the second supporting part 312 respectively from the both sides of first axle 103.
More specifically, as shown in Figures 4 and 5, for tumbler 31, on first axle 103 direction, the first supporting part
311 and second supporting part 312 be respectively arranged at the axially different position of tumbler 31.Support at the first supporting part 311 and second
Being also provided with spacer portion 313 between portion 312, this spacer portion 313 can be one and protrude from the first supporting part 311 or second
The convex tendon of supporting part 312.
First supporting part 311 is for contacting with the first connection leg 321, and the first supporting part 311 is arranged at the first axial location.
First supporting part 311 also includes the first supporting surface 311a, and the bearing of trend of this first supporting surface 311a is parallel to first axle
103.The most substantially part is around first axle 103 for first supporting surface 311a, and the first supporting surface 311a is also in its different circumferential position
Put and be formed with the first distal contact point 311b and the first proximal contact point 311c.Wherein, the first distal contact point 311b is relative
First proximal contact point 311c is distant, so when the first connection leg 321 and the first distal contact apart from first axle 103
During point 311b contact, the first connection leg 321 is farthest apart from first axle 103, and when the first connection leg 321 and the first proximal contact
During point 311c contact, closest apart from first axle 103 of the first connection leg 321.
Second supporting part 312 is for contacting with the second connection leg 322, and the second supporting part 312 is arranged at the second axial location.
Second supporting part 312 also includes the second supporting surface 312a, and the bearing of trend of this second supporting surface 312a is parallel to first axle
103.The most substantially part is around first axle 103 for second supporting surface 312a, and the second supporting surface 312a is also in its different circumferential position
Put and be formed with the second distal contact point 312b and the second proximal contact point 312c.Wherein, the second distal contact point 312b is relative
Second proximal contact point 312c is distant, so when the second connection leg 322 and the second distal contact apart from first axle 103
During point 312b contact, the second connection leg 322 is farthest apart from first axle 103, and when the second connection leg 322 and the second proximal contact
During point 312c contact, the second connection leg 322 is nearest apart from first axle 103.
And, the first connection leg 321 and the second connection leg 322 are separately positioned on the both sides of tumbler 31, and at the first axle
On the direction of line 103, the first connection leg 321 and the second connection leg 322 respectively with the first supporting surface 311a and the second supporting surface
The position of 312a is corresponding.
It addition, the first supporting surface 311a also includes the first revolution dignity, this first revolution dignity, should substantially in cylinder surface
Cylinder surface can be the part on a cylindrical surface centered by first axle 103.Second supporting surface 312a is also
Including second revolution dignity, this second revolution dignity substantially in cylinder surface, this cylinder surface can also be one with the first axle
The part on the cylindrical surface centered by line 103.So, the first proximal contact point 311c can be arranged at first by us
Revolution dignity, the second proximal contact point 312c is arranged at the second revolution dignity, thus when tumbler 31 rotates, if first connects
Connect lower limb 321 to contact with the first revolution dignity, it is possible to keep the first connection leg 321 constant with the distance of first axle 103；And if
Second connection leg 322 contacts with the second revolution dignity, it is possible to keep the second connection leg 322 constant with the distance of first axle 103.
It should be understood that the first proximal contact point 311c now is arranged in the first revolution dignity, then in the first revolution dignity
Any point all may be considered the first proximal contact point 311c；Second proximal contact point 312c is arranged on the second revolution dignity
On, then any point in the second revolution dignity all may be considered the second proximal contact point 312c.Same, the first far-end
Contact point 311b can also be arranged in a revolution dignity, and the second distal contact point 312b can also be arranged at a revolving body
On face.
One the first proximal contact point 311c and the line of a first distal contact point 311b and second near-end connect
The line of contact 312c and a second distal contact point 312b intersects, and so when tumbler 31 rotates, can drive first
Connection leg 321 apart from first axle 103 recently when, can drive the second connection leg 322 apart from first axle 103 the most simultaneously
Far, it is also possible to drive the second connection leg 322 apart from first axle 103 recently, or drive the second connection leg 322 and first axle
The distance of 103 be in farthest and recently between, thus realize different function switchings.
As shown in figs. 4 and 6, flexible member 32 is a torsion spring, the first connection leg 321 and the second connection leg 322 shape respectively
Become at the two ends of torsion spring.
First connection leg 321 includes that the first supporting section 321a, the first linkage section 321b and first drive section 321c, and second even
Connect lower limb 322 and include that the second supporting section 322a, the second linkage section 322b and second drive section 322c.
First supporting section 321a extends along a rectilinear direction, one end of the first supporting section 321a and elastic joint part 323
Connection, the other end and the first linkage section 321b connect.First linkage section 321b is approximately along the side vertical for supporting section 321a with first
To extension, and towards the direction bending of the second connection leg 322 on the first supporting section 321a.One end of first linkage section 321b is even
Meet the first supporting section 321a, the other end connects the first driving section 321c.First drives section 321c approximately along being perpendicular to the first support
The direction of the plane that section 321a and the first linkage section 321b is formed extends, and first drives one end of section 321c to connect the first connection
Section 321b, the other end connect the first clutch part 28.Wherein, the plane that the first supporting section 321a and the first linkage section 321b is formed
Also vertical with first axle 103.
Second supporting section 322a extends along a rectilinear direction, one end of the second supporting section 322a and elastic joint part 323
Connection, the other end and the second linkage section 322b connect.Second linkage section 322b is approximately along the side vertical for supporting section 322a with second
To extension, and towards the direction bending of the first connection leg 321 on the second supporting section 322a.One end of second linkage section 322b is even
Meet the second supporting section 322a, the other end connects the second driving section 322c.Second drives section 322c approximately along being perpendicular to the second support
The direction of the plane that section 322a and the second linkage section 322b is formed extends, and second drives one end of section 322c to connect the second connection
Section 322b, the other end connect the second clutch part 29.Wherein, the plane that the second supporting section 322a and the second linkage section 322b is formed
Also vertical with first axle 103.
As shown in Fig. 2,3,4 and 7, the first clutch part 28 is formed with the first sliding part 281 and the first drive division 282, and first
The first through hole 281a and the second through hole 281b it is formed with on sliding part 281.Second clutch part 29 is formed with the second sliding part 291 He
Second drive division 292, the second sliding part 291 is formed third through-hole 291a and fourth hole 291b.Guide post passes first
The first through hole 281a and the third through-hole 291a of the second clutch part 29 of clutch part 28, thus guide the first clutch part 28 and second
Clutch part 29 moves along the direction being parallel to guide post.First driving section 321c of the first connection leg 321 stretches to the first clutch
Second through hole 281b of part 28, the second driving section 322c of the second connection leg 322 stretches to the fourth hole of the second clutch part 29
291b, so, the first connection leg 321 and the second connection leg 322 can drive the first clutch part 28 and the second clutch part 29 to move.
First drive division 282 is for coordinating with actuator 23, and the second drive division 292 is for coordinating with the second actuator 24.
Actuator 23 and the second actuator 24 are respectively formed with the clutch part that can coordinate with arrangement of clutch 18, specifically,
The clutch part of actuator 23 is the first annular groove 231 formed on actuator 23, and the clutch part of the second actuator 24 is second to drive
The second cannelure 241 formed on moving part 24, the first drive division 282 is embedded in first annular groove 231, and the second drive division 292 is embedding
Enter to the second cannelure 241 so that the first drive division 282 can drive actuator 23 to move along central axis 102 direction and
Second drive division 292 can drive the second actuator 24 to move along central axis 102 direction,
So, tumbler 31 is arranged between the first connection leg 321 and the second connection leg 322, and tumbler 31 can be with first
Axis 103 rotates for axle, and the first supporting part 311 drives the first connection leg 321 to make the first clutch part 28 slide when rotating, the
Two supporting parts 312 drive the second connection leg 322 to make the second clutch part 29 slide, so that actuator 23 contacts with driving member 22
Or disengage, and the second actuator 24 can be made to contact with Oscillating lever bearing 21 or disengage, and then realize different
Function.
Wherein, as shown in Fig. 2, Fig. 8 and Fig. 9, arrangement of clutch 18 can make actuator 23 along its pivot center 104 direction to
Front movement contacts to drive driving member 22 to rotate as driving member 22, and arrangement of clutch 18 can also make actuator 23 along its rotary shaft
Line 104 direction is moved rearwardly into and departs from driving member 22.Pivot center 104 direction of actuator 23 here can be with central shaft
The central axis 102 of 19 is same axis.The content of technical scheme is the most clearly described, as shown in Figure 8 and Figure 9, originally
Utility model gives front side and the rear direction of electric hammer 100.
As shown in Figs. 8 to 11, the periphery of actuator 23 is also formed with first kind external tooth 232 and Equations of The Second Kind external tooth 233, passes
Moving part 22 can be the drive that periphery is formed with driving cog.
The first kind external tooth 232 that actuator 23 is formed extends along the direction of the pivot center 104 being parallel to actuator 23,
Equations of The Second Kind external tooth 233 also extends along pivot center 104 direction being parallel to actuator 23.
Along being parallel on the direction of pivot center 104 of actuator 23, first kind external tooth 232 have front end 232a and after
End 232b, Equations of The Second Kind external tooth 233 also has front end 233a and rear end 233b.Wherein, along the rotary shaft being parallel to actuator 23
On the direction of line 104, the front end 232a of first kind external tooth 232 protrudes relative to the front end 233a of Equations of The Second Kind external tooth 233, and the first kind
The rear end 232b of external tooth 232 and the rear end 233b alignment of Equations of The Second Kind external tooth 233.The front end 232a of first kind external tooth 232 here
Refer to the one end forward along pivot center 104 direction in the two ends of first kind external tooth 232, that is to say that actuator 23 is along rotation
The one end first contacted with driving member 22 when axis 104 direction moves forward.The front end 233a of Equations of The Second Kind external tooth 233 refers to second
One end forward along pivot center 104 direction in the two ends of class external tooth 233, that is to say that actuator 23 is along pivot center 104 side
The one end first contacted with driving member 22 in time moving forward.
As shown in Figure 10, first kind external tooth 232 and Equations of The Second Kind external tooth 233 are uniformly distributed in the periphery of actuator 23, they
It is generally disposed at same axial location, and they are also arranged on axially different position with first annular groove 231.
It addition, be provided with an Equations of The Second Kind external tooth 233 between adjacent two first kind external tooths 232.First kind external tooth 232
Having the first axial length L 1 at its bearing of trend, Equations of The Second Kind external tooth 233 has the second axial length L 2 in their extension direction,
Wherein, first axle length L1 is also greater than the second axial length L 2.And outside the axial length L 3 also less than first kind of driving member 22
First axial length L 1 of tooth 232, it is thus possible to facilitate composition transmission between driving member 22 with actuator 23 to coordinate.
So, because being provided with the Equations of The Second Kind external tooth 233 of pinch between adjacent two first kind external tooths 232, thus
When actuator 23 moves forward along its pivot center 104 direction so that in the circumference of the pivot center 104 around actuator 23
On, any one in the angle A that the driving cog on driving member 22 can be formed between two adjacent Equations of The Second Kind external tooths 233
Position all can snap onto between first kind external tooth 232 and Equations of The Second Kind external tooth 233, so pivot center be easier to realize they two
Transmission between person coordinates.Therefore, this utility model is easy to so that driving member 22 two adjacent first kind external tooths 232 it
Between snap in the angle A of actuator 23 and be far longer than front end 232a and the Equations of The Second Kind external tooth 233 of first kind external tooth 232 of the prior art
The angle B that had of structure of front end 233a alignment.
Of the present utility model ultimate principle, principal character and advantage have more than been shown and described.The technical staff of the industry
It should be appreciated that above-described embodiment limits this utility model, all employing equivalents or the mode of equivalent transformation the most in any form
The technical scheme obtained, all falls within protection domain of the present utility model.
Claims (10)
1. an electric hammer, including:
Rotary components, is used for making described electric hammer export revolving force；
Motor, is formed with motor shaft；
Transmission component, for being transferred to described rotary components by the power that described motor exports；
It is characterized in that:
Described transmission component includes:
Driving member, constitutes synchronous axial system with described rotary components；
Actuator, rotates when being driven by described motor；
Wherein, described electric hammer also includes making described actuator move forward to and institute along the pivot center direction of described actuator
State driving member contact to drive described driving member rotate or be moved rearwardly into the arrangement of clutch departed from described driving member；
The periphery of described actuator is formed:
First kind external tooth, the direction along the pivot center being parallel to described actuator extends；
Equations of The Second Kind external tooth, the direction along the pivot center being parallel to described actuator extends；
On the direction along the pivot center being parallel to described actuator, the most described Equations of The Second Kind in front end of described first kind external tooth
The front end of external tooth is protruded.
Electric hammer the most according to claim 1, it is characterised in that:
Described first kind external tooth has the first axial length in their extension direction, and described Equations of The Second Kind external tooth is in their extension direction
Having the second axial length, wherein, described first axial length is more than described second axial length.
Electric hammer the most according to claim 2, it is characterised in that:
It is provided with a described Equations of The Second Kind external tooth between two adjacent described first kind external tooths.
Electric hammer the most according to claim 3, it is characterised in that:
On the direction along the pivot center being parallel to described actuator, outside the rear end of described first kind external tooth is with described Equations of The Second Kind
The rear end alignment of tooth.
Electric hammer the most according to claim 1, it is characterised in that:
Described actuator is also formed with:
Clutch part, makes described actuator move forward and backward when coordinating with described arrangement of clutch；
Wherein, described clutch part and described first kind external tooth are arranged on the axially different position of described actuator.
6. according to the electric hammer described in claim 1 to 5 any one, it is characterised in that:
Described electric hammer also includes:
Impact assembly, is used for making described electric hammer export impulsive force；
Central shaft, when being motor driven around center axis thereof；
Oscillating lever bearing, including the wobble-plate installing extremely described central shaft and the swing arm being connected with described impact assembly；
Second actuator, drives described wobble-plate to rotate when contacting with described Oscillating lever bearing；
Wherein, described actuator and described second actuator constitute synchronous axial system with described central shaft respectively.
7. a power tool, including:
Housing；
Output, is used for exporting power；
Prime mover, is contained in described housing；
Transmission component, for being transferred to described output by described prime mover output power；
It is characterized in that:
Described transmission component includes:
Driving member, drives described output to export power when it rotates；
Actuator, rotates when by described prime mover driven；
Wherein, described power tool also includes making described actuator move forward to along the pivot center direction of described actuator
Contact with described driving member to drive described driving member rotate or be moved rearwardly into the arrangement of clutch departed from described driving member；
The periphery of described actuator is formed:
First kind external tooth, the direction along the pivot center being parallel to described actuator extends；
Equations of The Second Kind external tooth, the direction along the pivot center being parallel to described actuator extends；
On the direction along the pivot center being parallel to described actuator, the most described Equations of The Second Kind in front end of described first kind external tooth
The front end of external tooth is protruded.
Power tool the most according to claim 7, it is characterised in that:
Described first kind external tooth has the first axial length in their extension direction, and described Equations of The Second Kind external tooth is in their extension direction
Having the second axial length, wherein, described first axial length is more than described second axial length.
Power tool the most according to claim 8, it is characterised in that:
It is provided with a described Equations of The Second Kind external tooth between two adjacent described first kind external tooths.
Power tool the most according to claim 7, it is characterised in that:
Described driving member is the drive that periphery is formed with driving cog；Described first kind external tooth has first in their extension direction
Axial length, and the axial length of described drive is less than the first axial length of described first kind external tooth.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620248934.1U CN205852696U (en) | 2016-03-29 | 2016-03-29 | Electric hammer and power tool |
| US15/275,547 US10518399B2 (en) | 2015-09-30 | 2016-09-26 | Clutch device and power tool with clutch device |
| DE202016105385.4U DE202016105385U1 (en) | 2015-09-30 | 2016-09-28 | Coupling device and power tool with the coupling device |
Applications Claiming Priority (1)
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| CN201620248934.1U CN205852696U (en) | 2016-03-29 | 2016-03-29 | Electric hammer and power tool |
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| CN205852696U true CN205852696U (en) | 2017-01-04 |
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| CN201620248934.1U Active CN205852696U (en) | 2015-09-30 | 2016-03-29 | Electric hammer and power tool |
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| CN (1) | CN205852696U (en) |
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| GR01 | Patent grant | ||
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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