CN106965132A - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN106965132A CN106965132A CN201710024617.0A CN201710024617A CN106965132A CN 106965132 A CN106965132 A CN 106965132A CN 201710024617 A CN201710024617 A CN 201710024617A CN 106965132 A CN106965132 A CN 106965132A
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- China
- Prior art keywords
- shell body
- plane
- inner housing
- limit
- motor
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/006—Vibration damping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The present invention provides a kind of power tool, including：Motor；Output shaft for installment work head is driven by motor, plane on the basis of the plane of the axis of the axis of motor and output shaft is defined through；Housing, including inner housing and shell body, inner housing and shell body are spaced apart, and inner housing at least partly houses motor；Position-limit mechanism is provided between shell body and inner housing and the damper mechanism perpendicular to the direction of datum plane is acted on, position-limit mechanism is used to limiting shell body relative inner housing motion in datum plane or plane parallel to datum plane, and position-limit mechanism and damper mechanism is relatively independent sets.The position-limit mechanism and damper mechanism of relative opposition are provided with power tool in the present invention, the comfortableness of operation is effectively raised, does not also interfere with operating efficiency.
Description
Technical field
The present invention relates to a kind of power tool.
Background technology
Power tool, such as swing-type power tool.Swing-type power tool generally comprise housing, the motor being housed in housing,
For the output shaft and the eccentric drive mechanism that is connected between motor and output shaft of installment work head, eccentric drive mechanism
Motor drive shaft rotary motion is converted into the oscillating motion that output shaft surrounds own axes.So, connected in the free end of output shaft
Have after different annexes work heads, such as straight blade, saw blade, triangle frosted disk, swing-type power tool be can realize it is many
Operation is planted, such as saws, cut, grind, scrape, to adapt to different work requirements.
But, swing-type power tool inevitably produces larger vibration in the course of the work.Motor is directly set
On housing, operator is usually directly held on housing in operation, operator is transferred to so as to vibrate from instrument.Therefore
It has impact on the operation comfort of swing-type power tool.
Therefore, it is necessary to develop a kind of new power tool in fact, to solve the above problems.
The content of the invention
It is an object of the invention to provide a kind of power tool for operating comfortable, operating efficiency high.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：A kind of power tool, including：Motor；
Output shaft for installment work head is driven by the motor, the axis of the motor and the axis of the output shaft is defined through
Plane on the basis of plane；Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, described
Inner housing at least partly houses the motor；Position-limit mechanism is provided between the shell body and the inner housing and is acted on vertical
Directly in the damper mechanism in the direction of the datum plane, the position-limit mechanism is used to limit the shell body in the datum plane
Or moved parallel to relatively described inner housing in the plane of the datum plane, and the position-limit mechanism and the damper mechanism phase
To being independently arranged.
In order to solve the above technical problems, another technical scheme of the present invention is as follows：A kind of power tool, bag
Include：Motor；Output shaft for installment work head is driven by the motor；Housing, including inner housing and shell body, the inner casing
Body and the shell body are spaced apart, and the inner housing at least partly houses the motor, and the shell body has Longitudinal extending
Axis, it is mid-plane to be defined through the axis of the output shaft and the plane of the longitudinal extending axis；In the shell body
Provided with position-limit mechanism and the damper mechanism for acting on the direction perpendicular to the mid-plane, the limit between the inner housing
Position mechanism includes limit damping part, and the damper mechanism includes damping part, the damping part and the limit damping
Part is provided separately.
In order to solve the above technical problems, another technical scheme of the present invention is as follows：A kind of power tool, bag
Include：Motor；Output shaft for installment work head is driven by the motor；Housing, including inner housing and shell body, the inner casing
Body and the shell body are spaced apart, and the inner housing at least partly houses the motor, and the shell body has Longitudinal extending
Axis, it is mid-plane to be defined through the axis of the output shaft and the plane of the longitudinal extending axis；In the shell body
Provided with position-limit mechanism and the damper mechanism for acting on the direction perpendicular to the mid-plane, the limit between the inner housing
Position mechanism is used to limit the shell body relatively described inner casing in the plane of the mid-plane or the parallel mid-plane
Body is moved, and the position-limit mechanism and the relatively independent setting of the damper mechanism.
In order to solve the above technical problems, another technical scheme of the present invention is as follows：A kind of power tool, bag
Include：Motor；Output shaft for installment work head is driven by the motor, the motor drives the output shaft to be done around its axis
Oscillating traverse motion, the plane for defining the work head motion formation is working face；Housing, including inner housing and shell body,
The inner housing and the shell body are spaced apart, and the inner housing at least partly houses the motor；In the shell body and
Position-limit mechanism is provided between the inner housing and the damper mechanism parallel to the working face, and the position-limit mechanism is acted on
With the relatively independent setting of the damper mechanism.
In order to solve the above technical problems, another technical scheme of the present invention is as follows：A kind of power tool, bag
Include：Motor；For the output shaft of installment work head, the output shaft surrounds the axis of the output shaft under motor driving
Swing, the plane for defining the axis perpendicular to the output shaft is swinging plane；Housing, including inner housing and shell body, it is described
Inner housing and the shell body are spaced apart, and the inner housing at least partly houses the motor；In the shell body and described
It is used between inner housing provided with position-limit mechanism with the damper mechanism parallel to the swinging plane, the position-limit mechanism is acted on
Perpendicular to the swinging plane and parallel to limiting the relatively described inner casing of the shell body in the plane of the axis of the output shaft
Body is moved, and the position-limit mechanism and the relatively independent setting of the damper mechanism.
It is preferred that, the position-limit mechanism includes limit damping part, and the damper mechanism includes damping part, wherein described
The material of limit damping part is different from the damping part.
It is preferred that, the position-limit mechanism includes limit damping part, and the damper mechanism includes damping part, wherein described
The shapes and sizes of limit damping part at least one be different from the damping part.
It is preferred that, the position-limit mechanism includes limit damping part, and the damper mechanism includes damping part, wherein described
The density of limit damping part is different from the damping part.
It is preferred that, the damping part be arranged on the inner housing outer surface and the shell body inner surface it
Between.
It is preferred that, the damping part is connected directly between on the outer surface of the inner housing.
It is preferred that, the damping part is connected directly between on the inner surface of the shell body.
It is preferred that, the supporting surface processed by the inner surface of the shell body of contact damping damping piece is substantially convex；By
The supporting surface that the outer surface of the inner housing of contact damping damping piece is processed is substantially planar.
It is preferred that, the position-limit mechanism includes locating part, the stopper slot matched with the locating part and is arranged on limit
Position part and stopper slot between limit damping part, wherein the locating part be arranged on the shell body and the inner housing wherein it
On one；The stopper slot is arranged on the shell body and the inner housing other in which.
It is preferred that, the locating part is straight pin.
It is preferred that, on the axial direction of the straight pin, the length of the limit damping part is not more than the depth of stopper slot
Degree.
It is preferred that, the limit damping part is provided with the through hole passed through for the straight pin.
It is preferred that, the inner housing includes the head capsule at least partly housing the output shaft, the horse being connected with the head capsule
Up to shell, the position-limit mechanism and the damper mechanism are arranged between the head capsule and the shell body.
It is preferred that, the position-limit mechanism and the damper mechanism are arranged between the motor shell and the shell body.
It is preferred that, the position-limit mechanism includes limit damping part, and the damper mechanism includes two damping parts, described
Limit damping part is arranged between described two damping parts.
It is preferred that, the axial direction of described two damping parts and the limit damping part along the output shaft is set gradually.
It is preferred that, the position-limit mechanism is used to limit the shell body in the datum plane or flat parallel to the benchmark
Relatively described inner housing motion in the plane in face.
The power tool of the present invention, then can be according to respective spy by the relatively independent setting of position-limit mechanism and damper mechanism
Point is from most suitable material, shape, size, material etc..So as to ensure that effectiveness in vibration suppression, operating efficiency is not interfered with yet.
And position-limit mechanism and damper mechanism position set flexible, compact integral structure is man-machine more preferable.
Brief description of the drawings
Purpose, technical scheme and the beneficial effect of invention described above can be realized by accompanying drawings below：
Fig. 1 is the front view of the swing-type power tool of first embodiment of the invention.
Fig. 2 is the schematic diagram that swing-type power tool shown in Fig. 1 removes half shell body.
Fig. 3 is the partial perspective view of swing-type power tool shown in Fig. 1.
Fig. 4 is the sectional perspective exploded view of swing-type power tool shown in Fig. 1.
Fig. 5 is along line A-A cut-away view in Fig. 1.
Fig. 6 hides the schematic diagram of half shell body for the swing-type power tool of second embodiment of the invention.
Fig. 7 is the sectional perspective exploded view of swing-type power tool shown in Fig. 6.
Fig. 8 is the sectional view of swing-type power tool shown in Fig. 6.
Fig. 9 is the sectional view of the swing-type power tool of third embodiment of the invention.
Figure 10 hides the schematic diagram of half shell body for the swing-type power tool of four embodiment of the invention.
Figure 11 is the sectional perspective exploded view of the swing-type power tool shown in Figure 10.
Figure 12 is the sectional view of the swing-type power tool shown in Figure 10.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
The creating conception of the present invention, swing-type power tool and quilt are illustrated in present embodiment by taking swing-type power tool as an example
Claim swing-type power tool.But the power tool of the present invention is not limited to swing-type power tool or rotational power work
Tool, such as sander or electric angle grinder.
Fig. 1 to Fig. 5 show first embodiment of the invention.
Referring to Fig. 1, swing-type power tool 100 includes housing 32, the output shaft 34 internally extended from housing 32, peace
Work head (not shown) mounted in the end of output shaft 34, the clamping group for clamping work head on the axial direction 33 of output shaft
Part 36.Axial direction 33 is approximately along the axis Y extensions parallel to output shaft 34.
Housing 32 includes the inner housing 38 and shell body 40 being spaced apart.The substantially rectilinear extension of shell body 40, shell body
40 longitudinal extending axis is X1, and the part of inner housing 38 bends extension from one end opposite shell body 40 of shell body 40.Shell body
40 have grip zone 42, and user grasps the grip zone 42 during guiding tool.
The plane for being defined through the longitudinal extending axis X1 of the shell body 40 and axis Y of output shaft is mid-plane, also
It is to say, when the longitudinal extending axis X1 of shell body 40 and the axis Y of output shaft are coplanar, constitutes mid-plane.In the present embodiment,
The longitudinal extending axis X1 of shell body 40 is approximately perpendicular to the axis Y of output shaft.It may occur to persons skilled in the art that, shell body
40 longitudinal extending axis X1 and the axis Y of output shaft can also be non-coplanar, or coplanar but out of plumb, such as shell body 40 longitudinal direction
Extension axis X1 is parallel with the axis Y of output shaft or in other angles.
Reference picture 2, inner housing 38 includes the motor shell at least partly housing the head capsule 44 of output shaft 34, being connected with head capsule 44
46.Motor shell 46 is used to install motor 48, and motor 46 has motor drive shaft 47 (can join Fig. 3).Motor shell 46 can be set as needed
Count into partially or completely cladding motor 48.In this example, head capsule 44 is made of metal, and motor shell 46 is made of plastics.Certainly,
Head capsule 44 and motor shell 46 can be made up of metal or plastics as needed.Motor shell 46 in the present embodiment is by two parts group
Into the two ends for being separately positioned on motor 48 simultaneously partly coat motor 48, and the center section of motor 48 is then uncoated in motor shell 46
In.And motor shell 46 can also be by being monolithically fabricated, now it can coat motor 48 completely.
Reference picture 3, is provided with eccentric drive mechanism 50 between motor drive shaft 47 and output shaft 34, pass through eccentric drive mechanism 50
Motor 48 is converted into the oscillating motion that output shaft 34 surrounds own axes Y around the rotary motion of the axis X 2 of itself, swung
Direction as shown in arrow R-R in figure.After the free end of output shaft 34 connects different operating head attachments, such as straight blade, circle
Saw blade, triangle frosted disk etc., you can to realize the operation such as cutting or grinding.
It is defined through plane on the basis of the axis Y of the axis X 2 of motor and output shaft plane, that is to say, that when motor
Axis X 2 and the axis Y of output shaft are coplanar, constitute datum plane.And in the present embodiment, the axis Y of output shaft is approximately perpendicular to
The axis X 2 of motor.It may occur to persons skilled in the art that, the axis X 2 of motor can also be non-coplanar with the axis Y of output shaft,
Or coplanar but out of plumb, the axis X 2 of such as motor is parallel with the axis Y of output shaft or in other angles.
Certainly, in the present embodiment, the longitudinal extending axis X1 of the axis X 2 of motor and shell body 40 is overlapped, therefore, base
Directrix plane and mid-plane are overlapped.
The plane for defining work head motion formation is working face, and specific to the present embodiment, work head (can be rip
Piece, saw blade etc.) swinging plane for forming the axis Y perpendicular to output shaft is swung with output shaft 34.Swinging plane is considered as
It is that the upper any one straight line perpendicular to output shaft 34 of work swings the plane formed with output shaft 34.Therefore, swinging plane
Perpendicular to above-mentioned mid-plane or datum plane.Certainly, it is also conceivable for a person skilled in the art that for rotational power work
Tool, work head to form Plane of rotation as output shaft rotates.
With continued reference to Fig. 3, eccentric drive mechanism 50 is arranged in head capsule 44, including shift fork 52 and is connected on motor drive shaft 47
Offset assembly 54.Wherein, offset assembly 54 includes the eccentric shaft 56 being connected on motor drive shaft 47 and on eccentric shaft 56
Driving wheel 58.One end of shift fork 52 is connected to the top of output shaft 34, the phase of driving wheel 58 of its other end and offset assembly 54
Coordinate.Shift fork 52 includes being set in the sleeve pipe 60 on output shaft 34 and vertically motor drive shaft 47 is horizontal-extending from the top of sleeve pipe 60
Forked portion 62.In present embodiment, driving wheel 58 is ball bearing, and it has spherical with the cooperation of forked portion 62 of shift fork 52
Outer surface.Eccentric shaft 56 is connected with the bias of motor drive shaft 47, i.e. the axis X 3 of eccentric shaft 56 and the axis X 1 of motor drive shaft 47 is misaligned,
And the certain spacing of radial deflection.The forked portion 62 of shift fork 52 is coated on the both sides of driving wheel 58, and closely with driving wheel
58 outer surface sliding contact.
When the motor shaft 47 of motor 48 is rotated, eccentric shaft 56 then under the drive of motor drive shaft 47 with respect to motor axis
X2 eccentric rotaries, and then driving wheel 58 is driven with respect to the eccentric rotary of axis X 2 of motor.Under the drive of driving wheel 58, shift fork 52
Axis Y with respect to output shaft is swung, and further drives output shaft 34 to be swung around its own axis Y.Output shaft 34 swings band
Dynamic work head mounted thereto swings to be processed workpiece.
In the present embodiment, the swing angle of output shaft 34 is 5 °.The hunting frequency of output shaft 34 is 18000 times per minute.
By the way that the swing angle of output shaft is set into 5 °, the operating efficiency of work head is substantially increased, and when work head is saw blade
When, it is easy to the discharge of chip.
It is pointed out that swing-type power tool of the present invention, the swing angle of output shaft 34 is not limited in 5 °, it can be with
It is arranged as required to as the value more than or less than 5 °.The hunting frequency of output shaft 34 is also not necessarily limited to 18000 times per minute, preferably greatly
In 10000 times per minute.
Because housing 32 includes inner housing 38 and shell body 40.Moved to limit shell body 40 relative to inner housing, inside
Position-limit mechanism is provided between housing 38 and shell body 40.Position-limit mechanism be mainly used in limit shell body 40 datum plane with it is parallel
Relative inner housing 38 is moved with the plane of datum plane.It is pointed out that described to shell body and inner housing herein
The restriction of motion is not necessarily accurately limited to the motion in datum plane or the plane parallel with datum plane completely.Due to
The complexity of actual condition, datum plane may produce small upset, fortune of the above-mentioned position-limit mechanism to shell body and inner housing
Dynamic limitation, which also contains datum plane, has a case that small upset.Further, it should be pointed out that confined sports bag
Include the movement and rotation in these planes.
In another case, position-limit mechanism is mainly used in limiting shell body 40 in mid-plane and parallel to mid-plane
Plane in relative inner housing 38 move.It is pointed out that the restriction of the described motion to shell body and inner housing herein
The motion in mid-plane or the plane parallel with mid-plane is not necessarily accurately limited to completely.Due to actual condition
Complexity, mid-plane may also can produce small upset, and motion of the above-mentioned position-limit mechanism to shell body and inner housing is limited
Containing mid-plane has a case that small upset.Further, it should be pointed out that confined motion is included in these
The movement and rotation of plane.
In other situations, position-limit mechanism be mainly used in perpendicular to swinging plane or working face and parallel to
Motion of the shell body 40 with respect to inner housing 38 is limited in the plane of the longitudinal extending axis of output shaft axis or shell body 40.
In the present embodiment, between head capsule 44 and shell body 40, it is both provided between motor shell 46 and shell body 40 spacing
Mechanism.Certainly, position-limit mechanism can also be provided only between head capsule 44 and shell body 40；Or motor shell 46 and shell body 40 it
Between.
Position-limit mechanism is provided with least side of mid-plane.In the present embodiment, symmetrically set in the both sides of mid-plane
It is equipped with position-limit mechanism.
Below only between head capsule 44 and shell body 40, and it is specific to do exemplified by the position-limit mechanism of mid-plane side
Illustrate.
With reference to Fig. 4 and Fig. 5, position-limit mechanism includes locating part 64, the stopper slot 66 matched with locating part 64 and set
Limit damping part 68 between locating part 64 and stopper slot 66.Wherein locating part 64 is arranged on head capsule 44 and shell body 40 wherein
One of on；Stopper slot 66 is arranged on head capsule 44 and the other in which of shell body 40.
In the present embodiment, locating part 64 is arranged on shell body 40, is prolonged by the inner surface 70 of shell body 40 towards head capsule 44
Stretch.Locating part is straight pin, is integrally formed on shell body 40.Certainly, locating part can also be fixedly installed on shell body 40
On inner surface 70.
Stopper slot 66 is arranged on head capsule 44, for housing locating part 64.Locating part 64 and stopper slot 66 are shaped as circle
Shape, in this way, position-limiting action can be played in all directions in datum plane or mid-plane.Equally, can also
The transmission of reduction vibration etc. in all directions in datum plane or mid-plane.
Certainly, the shape of locating part 64 and stopper slot 66 is not limited in circle, and it can also be polygon, ellipse
Deng.And the shape of locating part can also be different from the shape of stopper slot.
Limit damping part 68 is provided with accepting hole 72, and accepting hole 72 is that cylindrical hole is passed through for straight pin 64.Certainly, accepting hole
72 shape can change with the alteration of form of locating part.In the present embodiment, accepting hole 72 is through hole.Certainly, house
Hole 72 can also have bottom surface, but straight pin 64 with its bottom surface then without touching.
Because limit damping part 68 is without providing the damping effect on the direction perpendicular to mid-plane or datum plane.Cause
This locating part 64 is on the direction perpendicular to mid-plane or datum plane, i.e., on the axial direction of itself, limit damping 68
The length of part can be not more than the depth of stopper slot 66.
Swing-type power tool 100 is during work, and feeding of the workpiece to the head that works, which is produced, hinders power, and then work head
Power is transferred to output shaft, is further transferred to from output shaft on inner housing 38, power passes through the spacing resistance between inside and outside housing
Damping member 68 is handed on shell body 40, and being further transferred to user from shell body 40 again grips swing-type power tool 100 on hand.
Therefore, limit damping part 68 is conducive to the raising of swing-type power tool operating characteristics using the larger material of rigidity, is easy to user
More easily operation swing-type power tool makes the smoothly feeding of its work head.
Swing-type power tool 100 in the course of the work, parallel on the direction of swinging plane for principal vibration originate, therefore
Damper mechanism is provided between inner housing 38 and shell body 40, damper mechanism main function is oriented parallel to swinging plane or work
Make plane.I.e. damper mechanism is acted predominantly on the direction of datum plane or mid-plane.
By setting damper mechanism, it is possible to prevente effectively from the vibration produced by the course of work is transferred to by inner housing 38
Shell body 40, and then it is transferred to grip zone 42.Reduce and be transferred to grip zone 42 and vibrate, greatly improve user and using process
In the numb hand problem of vibration, improve the comfort level of operation.
In the present embodiment, between head capsule 44 and shell body 40, it is both provided with vibration damping between motor shell 46 and shell body 40
Mechanism.Certainly, damper mechanism can also be provided only between head capsule 44 and shell body 40；Or motor shell 46 and shell body 40 it
Between.
Damper mechanism is provided with least side of mid-plane, and in the present embodiment, it is symmetrical in the both sides of mid-plane
It is provided with damper mechanism.
Below only between head capsule 44 and shell body 40, and it is specific to do exemplified by the damper mechanism of mid-plane side
Illustrate.With reference to Fig. 4 and Fig. 5, damper mechanism includes the damping part 76 being arranged between head capsule 44 and shell body 40.
Specifically, in the present embodiment, damping part 76 is arranged on outer surface 74 and the shell body 40 of inner housing 38
Between inner surface 70.The number of damping part 76 can be N number of (N, which is 1,2, ... waits integer), in the present embodiment, vibration damping resistance
The number of damping member 76 is two.
Damping part 76 can possess in the state of not inserting be suitable for after the shape to be inserted.For example, vibration damping
Damping piece 76 is being in cuboid in the state of not inserting and its shape is changed by inserting the prestressing force under state.
Therefore, prestressed generation can produce extremely advantageous influence to the inside of damping part 76.Suitable prestressing force especially exists
Between 20% to 40%, and preferably 35%.
Damping part 76 is connected on the inner surface 70 of shell body 40.By the shell body 40 of contact damping damping piece 76
Inner surface 70 processes supporting surface, and supporting surface is substantially convex.
Damping part 76 is connected on the outer surface 74 of inner housing 38.By the inner housing 38 of contact damping damping piece 76
Supporting surface is processed into outer surface 74, and supporting surface is substantially planar.
In addition it is also possible to the inner surface 70 of the shell body 40 of contact damping damping piece 76 is processed into plane, it will contact
Supporting surface is processed into the outer surface 74 of the inner housing 38 of damping part 76, and supporting surface is substantially convex；Or outer surface 74 and interior
Supporting surface is all processed on surface 70, and supporting surface is in plane.
Due to damper mechanism and position-limit mechanism is relatively independent sets, therefore, the deceleration damping piece 76 that shakes can be just directly connected to
Inner surface 70 in shell body 40, on the outer surface 74 of inner housing 38.And damping part 76 can be made as needed with it is interior
The outer surface of housing 38, the arbitrary shape of the inner surface configuration laminating of shell body 40.
In the present embodiment, damping part 76 is in cuboid in the state of not inserting, and in prestressing force after inserting
In the presence of its shape is changed, the surface being in contact with the inner surface 70 of shell body 40 is recessed.Certainly, position restrainer
Structure is mainly used in restriction shell body 40 and moved in datum plane or mid-plane relative to inner housing 38；And damper mechanism is mainly made
With on the direction perpendicular to datum plane or mid-plane.Therefore, by the relatively independent setting of damper mechanism and position-limit mechanism.Such as
Damper mechanism and position-limit mechanism can be set with contiguous or separate.So, the shape of damping part 76 and limit damping part 68, chi
Very little, material can select what is be best suitable for respectively according to its respective effect.So as to ensure that effectiveness in vibration suppression, work is not interfered with also
Make efficiency.
Damper mechanism and the relatively independent setting of position-limit mechanism.Therefore, damper mechanism is set at least side of mid-plane；
And both sides are when all setting, it can select to be symmetrical arranged, it is of course also possible to setting of staggering.And the position of position-limit mechanism is set then more
Plus flexibly, it can be the same with damper mechanism, set in mid-plane one or both sides；More flexible, position-limit mechanism also may be used
It is located at a part in mid-plane.So as to be set when specifically setting according to the concrete shape of swing-type power tool 100, and
And the diameter of grip zone 42 can be reduced, structure is compacter, is easy to grip.
Referring again to Fig. 4 and Fig. 5, or by between head capsule 44 and shell body 40 and exemplified by mid-plane side.At this
In embodiment, damper mechanism and position-limit mechanism are disposed adjacent.Damper mechanism includes two damping parts 76, and position-limit mechanism
Limit damping part 68 is then arranged between two damping parts 76.Two damping parts 76 and limit damping part 68 are along output
Set gradually on the axial direction 33 of axle.Two relative limit damping pieces 68 of damping part 76 are symmetrical arranged, and in three
Axial direction 33 of the line of the heart along output shaft extends.
Damping part 76 and limit damping part 68 are provided separately, and both will not interfere.Fig. 4 is specifically referred to, is subtracted
Shake damping piece 76 and limit damping part 68 is spaced apart by the outer wall 80 (part for head capsule 44) of stopper slot 66.Damping part
76 is spaced apart with the outer wall 80 of stopper slot 66.Certainly, damping part 76 can also be in contact with outer wall 80.
Damping part 76 and limit damping part 68 all have certain elasticity, use polyurethane (PU), EPDM
(EPDM), polypropylene (EPP), rubber and its mixture etc..These materials are used between inner housing 38 and shell body 40, are coordinated
Appropriate prestressing force, the comfort level of operation is improved while user grips 42 guiding tool of grip zone.
In the present embodiment, all preferred polyurethane (PU) of damping part 76 and limit damping part 68.Certainly, damping
Part 76 and limit damping part 68 can also use different material.Such as damping part 76 uses polyurethane (PU), and spacing
Damping piece 68 uses polypropylene (EPP) etc..
Damping part 76 and limit damping part 68 are using polyurethane (PU), and density is typically in 0.3~0.8g/cm3.Vibration damping
Preferably 0.45~the 0.55g/cm3 of damping piece 76, the preferably 0.6~0.7g/cm3 of limit damping part 68.Therefore, the He of damping part 76
The density of limit damping part 68 can be the same, but it is also possible to otherwise varied.It is preferred that, the density of material of damping part 76 is less than
The density of material of limit damping part 68.
And because damping part 76 and limit damping part 68 are provided separately.Therefore, damping part 76 and spacing resistance
Damping member 68 can be as needed, identical or otherwise varied in shape, size or number.
Such as in the present embodiment, the shape between the outer surface 74 for not inserting inner housing 38 and the inner surface 70 of shell body 40
Under state, damping part 76 is generally rectangular, and after inserting, the one side being in contact with the inner surface 70 of shell body 40 is substantially
It is recessed.It is all substantially cylindrical and limit damping part 68 is not in the state of inserting and inserting.And its size, number
Also it is all different.Certainly, the shape of damping part 76 and limit damping part 68, number are also not limited to the present embodiment, and it can
To be set according to specific space.
In the present embodiment, two damping parts 76 are spaced apart is set, in this way, adding damper mechanism defeated
The upper span of axial direction 33 of shaft.Its span is bigger, not only increases effectiveness in vibration suppression, while so that damper mechanism is in output shaft
Axial direction 33 on have enough supports to head capsule 44, the angle of the opposite shell body 40 of head capsule 44 motion is smaller, significantly keeps away
Work efficiency drop is exempted from.
It is preferred that, the maximum length for housing axial direction 33 of the head capsule 44 of part output shaft 34 along output shaft is L,
It is more than or equal between two solstics on axial direction 33 of two damping parts 76 along output shaft apart from L1 (span)
0.2L, less than or equal to 0.8L.It is preferred that, two solstics on axial direction 33 of two damping parts 76 along output shaft it
Between apart from L1 be more than or equal to 0.4L, less than or equal to 0.7L.It is preferred that, axial direction 33 of two damping parts 76 along output shaft
On two solstics between apart from L1 be 0.5L or 0.6L.
Certainly, the length summation L2 on axial direction 33 of two damping parts 76 along output shaft is more than or equal to 0.2L,
Less than or equal to 0.8L, it similarly can realize good damping result and significantly avoid work efficiency drop.It is preferred that, two subtract
The length summation L2 shaken on axial direction 33 of the damping piece 76 along output shaft is more than or equal to 0.3L, less than or equal to 0.6L.It is preferred that
Length summation L2 on axial direction 33 of two damping parts 76 along output shaft is 0.4L or 0.5L.
Referring again to Fig. 2, set in the present embodiment, between motor shell 46 and shell body 40 damper mechanism and position-limit mechanism with
The damper mechanism and position-limit mechanism set between head capsule 44 and shell body is essentially identical, and difference is, two dampings
The center of part 76 and the line of centres of limit damping part 68 are not located at same straight line, and the line at three centers constitutes a triangle
Shape.While being arranged so as to equally ensure effectiveness in vibration suppression, operating efficiency is not interfered with.In addition, damping part 76
The rectangular shape in head capsule 44 is may differ from, one or more angles are such as reamed.As can be seen here, the He of damping part 76
The position of limit damping part 68 sets flexible, can be set according to the concrete shape of swing-type power tool 100, structure is more stepped up
Gather.
Fig. 6 to Fig. 8 show second embodiment of the present invention.
With reference to shown in Fig. 6-8, the present embodiment and first embodiment are substantially similar.In the present embodiment, swing-type power tool
200 and its total arrangement, position-limit mechanism all same, difference is the setting of damper mechanism.In the present embodiment, head capsule
Damper mechanism is provided between 244 and shell body 240, damper mechanism is also equipped between motor shell 246 and shell body 240.And
And, in the both sides of mid-plane, it is symmetrically arranged with damper mechanism.
Below between head capsule 244 and shell body 240, and explained exemplified by the damper mechanism of mid-plane side
State.Damper mechanism includes damping part 276.Damping part 276 is in ring-type column structure substantially, two bottom surfaces of cylinder
For the first bottom surface 231a and the second bottom surface 231b of damping part 276.Damping part 276 includes endoporus 277, endoporus 277
Generally cylindrical shape, and with inner hole wall.
Further, damping part 276 is set on the outer wall 280 of stopper slot 266.Specifically, damping part 276
Inner hole wall and stopper slot 266 outer wall 280 it is matched, so as to limit the relative position between damping part 276 and head capsule 244
Put relation, it is to avoid damping part 276 is during swing-type power tool 200 works, because of repeated action vibrated
Offset to other positions.
Further, the first bottom surface 231a and head capsule 244 of damping part 276 are abutted against, and the of damping part 276
Two bottom surface 231b and shell body 240 are abutted against.More specifically, the outer surface 274 of the first bottom surface 231a and head capsule 244 is abutted against,
The inner surface 270 of second bottom surface 231b and shell body 240 is abutted against.It is preferred that, what the bottom surface 231a of outer surface 274 and first was abutted
Position is in plane, and the position that the bottom surface 231a of inner surface 270 and second is abutted is also in plane.It is furthermore preferred that damping part
Freely set relatively between 276 and the inner surface 270 of shell body 240, from without limiting damping part 276 and shell body 240
Between relative position relation.It is arranged such, during swing-type power tool 200 works, it is possible to reduce damping part
The power in the direction beyond 276 directions perpendicular to mid-plane being subject to, so that slow down the fatigue failure of damping part 276,
Improve the service life of damping part 276.
It is third embodiment of the present invention shown in Fig. 9, is the deformation on the basis of second embodiment.In this implementation
In example, the inside of stopper slot 366 has step surface 367, i.e. the inwall of stopper slot 366 is divided into different two sections of internal diameter.Further
, the inwall of stopper slot 366 is smaller close to one section of internal diameter of head capsule 344, and one section of internal diameter close to shell body 340 is larger.More enter
One step, limit damping part 368 is arranged in stopper slot 336 in one section of shell body 340.Limit damping part 368 is in big
The circular cylinder shape of cause, the accepting hole in the middle of it with insertion, accepting hole generally cylindrical shape.Further, it is arranged on
Locating part 364 on shell body 340 also in substantially from the inner surface 370 of shell body 340 protrude above it is cylindric.After assembling,
Locating part 364 is coupled in the accepting hole of limit damping part 368.Specifically, locating part 364 is completely through limit damping part 368
Accepting hole.
Figure 10 to Figure 12 show the 4th embodiment of the present invention.
With reference to shown in Figure 10-12, the present embodiment and first embodiment are substantially similar.In the present embodiment, power work is swung
Tool 400 and its total arrangement are identical.In the present embodiment, damper mechanism and limit are provided between head capsule 444 and shell body 440
Position mechanism.Further, in the both sides of mid-plane, it is symmetrically arranged with damper mechanism.
Below between head capsule 444 and shell body 440, and explained exemplified by the damper mechanism of mid-plane side
State.Damper mechanism includes damping part 476.Damping part 476 is arranged on outer surface 474 and the shell body 440 of head capsule 444
Inner surface 470 between.Specifically, being provided with head capsule 444 from the raised flange 475 in outer surface 474, flange 475 is in head capsule
444 upper measurement of outer surface 474 sets to form receiving space.It is preferred that, the flange 475 and receiving space are in axial direction set respectively
There are two.It is preferred that, damping part 476 includes two vibration damping portions 479.Two vibration damping portions 479 are in axial direction arranged at intervals,
And connected by connecting portion 481.Further, two vibration damping portions 479 are separately positioned in two receiving spaces.It is arranged such,
The length requirement of damping part in the axial direction can be met, two damping parts need not be installed again, assembling is simplified
Process.Further, the part that the inner surface 470 of damping part 476 and shell body 440 is abutted is plane, and both are relative
Freely set, from without limiting the relative position relation between damping part 476 and shell body 440.Be arranged such, be also for
Improve the service life of damping part 476.
Further, it is additionally provided with position-limit mechanism between head capsule 444 and shell body 440.The longitudinally extending axis of shell body 440
Line is X1, and the axis of output shaft is Y.The longitudinal extending axis X1 of shell body and the axis Y of output shaft are orthogonal.Perpendicular to defeated
Shaft axis and excessively longitudinal extending axis X1 plane are transverse plane.In the present embodiment, in the both sides of transverse plane, symmetrically
It is provided with position-limit mechanism.Below between head capsule 444 and shell body 440, and exemplified by the position-limit mechanism of transverse plane side
It is illustrated.Position-limit mechanism includes limit damping part 468.Limit damping part 468 is in the cylinder knot that cross section substantially is U-shaped
Structure.The U-shaped column structure of limit damping part 468 extends along the direction vertical with mid-plane.The U-shaped of limit damping part 468
The sunk part of column structure is set towards shell body 440.Finite place piece 464 is set on shell body 440.Locating part 464 is from outer
The outwardly convex of inner surface 470 of housing 440 is set, for the sunk part mating with limit damping part 468.On head capsule 444 also
It is provided with stopper slot 466.Limit damping part 464 is connected in stopper slot 466.Limit damping part 464, stopper slot 466 and spacing
Part 464, which cooperates with each other, extends longitudinally the motion of the direction of axis X 1 and output shaft axis Y-direction for limiting inner and outer shell.So
Position-limit mechanism is set so that the length in its direction along vertical median plane is longer, so that the spacing effect of limit damping part
Fruit is more preferably.
The restriction effect of the relative motion of position-limit mechanism in above-mentioned second to the 4th embodiment internally, between outer cage
As in first embodiment, therefore, if using the larger material of rigidity, enabling to swing-type power tool operating characteristics
Raising, be easy to user more easily operate swing-type power tool make its work head smoothly feeding.And its damper mechanism also can
The direction damping force as the damper mechanism in first embodiment is enough provided, that is to say, that the action direction of its damper mechanism and
The action direction of damper mechanism in first embodiment is identical, is put therefore, it is possible to efficiently reduce swing-type power tool at it
Vibration on dynamic direction.
In above-mentioned embodiment, by the relatively independent setting of position-limit mechanism and damper mechanism.So, damping part and spacing
Shape, size, material, number of damping piece etc. can select what is be best suitable for respectively according to its respective effect.So as to ensure
Effectiveness in vibration suppression, does not interfere with operating efficiency also.And the position of damping part and limit damping part is set also more flexibly,
Swing-type power tool structure is compacter, man-machine more preferable.
The present invention is not limited to the embodiment in previous embodiment, and those skilled in the art are in the technology of the present invention marrow
It is also possible to make other changes under enlightenment, but as long as the function and the present invention of its realization are same or similar, this hair all should be covered by
In bright protection domain.
Claims (18)
1. a kind of power tool, including：
Motor；
Output shaft for installment work head is driven by the motor, the axis and the output shaft of the motor is defined through
Plane on the basis of the plane of axis；
Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, and the inner housing is at least partly
House the motor；
It is characterized in that：Position-limit mechanism is provided between the shell body and the inner housing and is acted on perpendicular to the benchmark
The damper mechanism in the direction of plane, the position-limit mechanism is used to limit the shell body in the datum plane or parallel to described
Relatively described inner housing motion in the plane of datum plane, and the position-limit mechanism and the relatively independent setting of the damper mechanism.
2. power tool as claimed in claim 1, it is characterised in that：The position-limit mechanism includes limit damping part, described to subtract
Mechanism of shaking includes damping part, wherein the material of the limit damping part is different from the damping part.
3. power tool as claimed in claim 1, it is characterised in that：The position-limit mechanism includes limit damping part, the vibration damping
Mechanism includes damping part, wherein the shapes and sizes of the limit damping part at least one be different from vibration damping resistance
Damping member.
4. power tool as claimed in claim 1, it is characterised in that：The position-limit mechanism includes limit damping part, described to subtract
Mechanism of shaking includes damping part, wherein the density of the limit damping part is different from the damping part.
5. the power tool as described in claim 2-4 is any, it is characterised in that：The damping part is arranged on the inner casing
Between the inner surface of the outer surface of body and the shell body.
6. power tool as claimed in claim 5, it is characterised in that：The damping part is connected directly between the inner housing
Outer surface on.
7. power tool as claimed in claim 6, it is characterised in that：The damping part is connected directly between the shell body
Inner surface on.
8. power tool as claimed in claim 1, it is characterised in that：The position-limit mechanism include locating part, with it is described spacing
Stopper slot that part matches and the limit damping part being arranged between locating part and stopper slot, wherein the locating part is arranged on
On one of the shell body and the inner housing；The stopper slot is arranged on the shell body and the inner housing is wherein another
On one.
9. power tool as claimed in claim 8, it is characterised in that：The locating part is straight pin.
10. power tool as claimed in claim 9, it is characterised in that：It is described spacing on the axial direction of the straight pin
The length of damping piece is not more than the depth of stopper slot.
11. power tool as claimed in claim 9, it is characterised in that：The limit damping part, which is provided with, supplies the straight pin
The through hole passed through.
12. power tool as claimed in claim 1, it is characterised in that：The inner housing includes at least partly housing described defeated
The head capsule of shaft, the motor shell being connected with the head capsule, the position-limit mechanism and the damper mechanism be arranged on the head capsule and
Between the shell body.
13. power tool as claimed in claim 12, it is characterised in that：The position-limit mechanism and the damper mechanism are arranged on
Between the motor shell and the shell body.
14. a kind of power tool, including：
Motor；
Output shaft for installment work head is driven by the motor；
Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, and the inner housing is at least partly
The motor is housed, the shell body has longitudinal extending axis, the axis and the longitudinal direction for being defined through the output shaft prolong
The plane for stretching axis is mid-plane；
It is characterized in that：Position-limit mechanism is provided between the shell body and the inner housing and is acted on perpendicular to the centre
The damper mechanism in the direction of plane, the position-limit mechanism includes limit damping part, and the damper mechanism includes damping part, institute
State damping part and the limit damping part is provided separately.
15. power tool as claimed in claim 14, it is characterised in that：The position-limit mechanism exists for limiting the shell body
The mid-plane is moved parallel to relatively described inner housing in the plane of the mid-plane.
16. a kind of power tool, including：
Motor；
Output shaft for installment work head is driven by the motor；
Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, and the inner housing is at least partly
The motor is housed, the shell body has longitudinal extending axis, the axis and the longitudinal direction for being defined through the output shaft prolong
The plane for stretching axis is mid-plane；
It is characterized in that：Position-limit mechanism is provided between the shell body and the inner housing and is acted on perpendicular to the centre
The damper mechanism in the direction of plane, the position-limit mechanism be used for limit the shell body the mid-plane or it is parallel it is described in
Between plane plane in inner housing motion relatively, and the position-limit mechanism and damper mechanism is relatively independent sets.
17. a kind of power tool, including：
Motor；
Output shaft for installment work head is driven by the motor, the motor drives the output shaft to be done back and forth around its axis
Oscillating motion, the plane for defining the work head motion formation is working face；
Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, and the inner housing is at least partly
House the motor；
It is characterized in that：Position-limit mechanism is provided between the shell body and the inner housing and is acted on parallel to the work
The damper mechanism of plane, and the position-limit mechanism and the relatively independent setting of the damper mechanism.
18. a kind of power tool, including：
Motor；
For the output shaft of installment work head, the output shaft is put under motor driving around the axis of the output shaft
Dynamic, the plane for defining the axis perpendicular to the output shaft is swinging plane；
Housing, including inner housing and shell body, the inner housing and the shell body are spaced apart, and the inner housing is at least partly
House the motor；
It is characterized in that：Position-limit mechanism is provided between the shell body and the inner housing and is acted on and is swung parallel to described
The damper mechanism of plane, the position-limit mechanism is used for perpendicular to the swinging plane and parallel to the axis of the output shaft
The shell body is limited in plane to move relative to the inner housing, and the position-limit mechanism and damper mechanism is relatively independent sets
Put.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016100240220 | 2016-01-14 | ||
| CN201610024022 | 2016-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106965132A true CN106965132A (en) | 2017-07-21 |
Family
ID=59310856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710024617.0A Pending CN106965132A (en) | 2016-01-14 | 2017-01-13 | Power tool |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3403771A4 (en) |
| CN (1) | CN106965132A (en) |
| WO (1) | WO2017121366A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155854A1 (en) * | 2019-02-01 | 2020-08-06 | 宝时得科技（中国）有限公司 | Power tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720632A (en) * | 2008-10-17 | 2010-06-09 | 株式会社牧田 | Power tool |
| CN103372855A (en) * | 2012-04-26 | 2013-10-30 | 苏州宝时得电动工具有限公司 | Swing power tool |
| CN104245239A (en) * | 2012-04-24 | 2014-12-24 | C.&E.泛音有限公司 | Hand-held machine tool with outer housing |
| DE102014103856A1 (en) * | 2014-03-20 | 2015-09-24 | C. & E. Fein Gmbh | Hand tool with an outer housing and an inner housing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4000861C3 (en) * | 1990-01-13 | 1999-04-08 | Atlas Copco Electric Tools | Hand-held impact drill with vibration damping |
| DE102006027774A1 (en) * | 2006-06-16 | 2007-12-20 | Robert Bosch Gmbh | Hand tool |
| CN201271828Y (en) * | 2008-09-17 | 2009-07-15 | 南京德朔实业有限公司 | Sander |
| DE102009002969A1 (en) * | 2009-05-11 | 2010-11-18 | Robert Bosch Gmbh | Electric hand-held machine tool i.e. angular grinder, has vibration reduction elements arranged between housing parts, where elements form-fittingly interconnect housing parts in spatial direction |
| DE102009002970A1 (en) * | 2009-05-11 | 2010-11-18 | Robert Bosch Gmbh | Hand tool machine, in particular electric hand tool machine |
| CN105881460A (en) * | 2015-02-15 | 2016-08-24 | 苏州宝时得电动工具有限公司 | Power tool |
| CN205521245U (en) * | 2016-01-14 | 2016-08-31 | 苏州宝时得电动工具有限公司 | Power tool |
-
2017
- 2017-01-13 CN CN201710024617.0A patent/CN106965132A/en active Pending
- 2017-01-13 WO PCT/CN2017/071045 patent/WO2017121366A1/en active Application Filing
- 2017-01-13 EP EP17738179.5A patent/EP3403771A4/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720632A (en) * | 2008-10-17 | 2010-06-09 | 株式会社牧田 | Power tool |
| CN104245239A (en) * | 2012-04-24 | 2014-12-24 | C.&E.泛音有限公司 | Hand-held machine tool with outer housing |
| CN103372855A (en) * | 2012-04-26 | 2013-10-30 | 苏州宝时得电动工具有限公司 | Swing power tool |
| DE102014103856A1 (en) * | 2014-03-20 | 2015-09-24 | C. & E. Fein Gmbh | Hand tool with an outer housing and an inner housing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155854A1 (en) * | 2019-02-01 | 2020-08-06 | 宝时得科技（中国）有限公司 | Power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3403771A4 (en) | 2020-01-01 |
| WO2017121366A1 (en) | 2017-07-20 |
| EP3403771A1 (en) | 2018-11-21 |
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Application publication date: 20170721 |
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