CN205996904U - Beater mechanism and electric hammer - Google Patents
Beater mechanism and electric hammer Download PDFInfo
- Publication number
- CN205996904U CN205996904U CN201620881074.5U CN201620881074U CN205996904U CN 205996904 U CN205996904 U CN 205996904U CN 201620881074 U CN201620881074 U CN 201620881074U CN 205996904 U CN205996904 U CN 205996904U
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- Prior art keywords
- percussion hammer
- piston
- face
- hammer
- housing
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Abstract
This utility model is related to a kind of beater mechanism, and for electric hammer, electric hammer includes housing, work head and motor, and motor is arranged at described housing, and beater mechanism includes cylinder, percussion hammer, piston and lance, and cylinder is arranged at housing；Percussion hammer is configured to slide in described cylinder；Piston is configured to move back and forth in described cylinder, to impact described percussion hammer；Lance is arranged between described work head and described percussion hammer, and is configured to slide in described cylinder, so that the hammering energy of described percussion hammer is transferred to described work head；Wherein, described percussion hammer towards described piston end face be curved surface, and centered on symmetric figure., in this end face, uniformly, percussion hammer vibration is little for the pressure that compressed gas produce for the pressure perpendicular that the end face of this percussion hammer is subject to, and hammering energy consumes little, the energy Relatively centralized of its hammering lance, improves drilling efficiency.A kind of percussion hammer is also provided.
Description
Technical field
This utility model is related to electric tool technical field, more particularly to a kind of beater mechanism and electric hammer.
Background technology
Electric hammer is common in field of power tools, using frequently instrument, is commonly used to hardness such as wall, concrete
Larger object surface of the work is dug or boring work.Electric hammer has the work head of directly contact workpiece and is used for driving
The drive mechanism of work head.On the one hand, drive mechanism can provide the driving force of work head rotation, so that work head is carried out around an axis
Rotary motion；On the other hand, drive mechanism drives the piston having crankshaft-link rod, reciprocating air in a cylinder, makes gas
Cylinder inner air pressure is in mechanical periodicity, and the air pressure of change drives the percussion hammer in cylinder back and forth to hit the top of work head, from
And hammered while carrying out rotary drilling, increase drilling efficiency.
At present, existing piston and percussion hammer are located in cylinder, and piston compresses air drives the hammering energy that percussion hammer single produces
Amount loss is larger, leads to not realize preferably perforating efficiency.
Utility model content
Based on this it is necessary to drive the hammering energy loss that percussion hammer single produces larger for existing piston compresses air,
Lead to not realize the problem of preferable perforating efficiency, provide a kind of hammering energy that less, perforating efficiency high beater mechanism is lost
And electric hammer.
A kind of beater mechanism, for electric hammer, described electric hammer includes：
Housing；
Work head, positioned at described housing forward end；
Motor, is arranged at described housing, for rotating for described work head and/or moving back and forth offer power；
Described beater mechanism includes：
Cylinder, is arranged at described housing；
Percussion hammer, is configured to slide in described cylinder；
Piston, is configured to move back and forth in described cylinder, to drive described percussion hammer；
Lance, is arranged between described work head and described percussion hammer so that the hammering energy of described percussion hammer be transferred to described
Work head；
Wherein, described percussion hammer towards described piston end face be curved surface, and centered on symmetric figure.
Wherein in an embodiment, described cylinder has an axis, described percussion hammer towards described piston end face along described
The distance away from described axis for the axis direction is gradually reduced.
Wherein in an embodiment, described percussion hammer is along described axis towards away from described piston towards the end face of described piston
Direction depression curved surface.
Wherein in an embodiment, described percussion hammer is conical surface towards the end face of described piston.
Wherein in an embodiment, described percussion hammer is with a parabola as bus towards the end face of described piston, around described
The curved surface that axis rotation is formed.
Wherein in an embodiment, described percussion hammer is sphere towards the end face of described piston.
Wherein in an embodiment, the end of the end surface shape towards described percussion hammer for the described piston and its described percussion hammer relative
The mating shapes in face.
Wherein in an embodiment, described piston is plane towards the end face of described percussion hammer.
A kind of electric hammer, including beater mechanism described above.
Wherein in an embodiment, described electric hammer also includes：
Housing；
Chuck, positioned at described housing forward end, for housing work head；
Motor, is arranged at described housing, for rotating for described work head and/or moving back and forth offer power；
Movement conversion mechanism, is arranged at described housing, and described piston is connected with described movement conversion mechanism, by described horse
The rotation output reaching is converted into linear motion and is transferred to described beater mechanism；
Rotating actuator, is arranged at described housing, is driven by described motor and drives described work head rotation.
Above-mentioned beater mechanism and electric hammer, the pressure perpendicular that the end face of this percussion hammer is subject in this end face, due to this percussion hammer direction
The end face of piston be curved surface, and centered on symmetric figure, compare traditional percussion hammer end face be plane, larger hammering energy can be put aside
Amount, and make the pressure that percussion hammer bears more uniform and concentrate, percussion hammer vibration is little, and hammering energy consumption is little, and then farthest
Make use of the hammering energy of air interior generation, improve drilling efficiency.
Brief description
Fig. 1 is the structural representation of the beater mechanism of electric hammer of this utility model one embodiment.
Specific embodiment
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is more fully retouched
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, this utility model can come in many different forms
Realize however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments to be to make to of the present utility model
The understanding of disclosure is more thoroughly comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
" right " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment is it is not intended that in limiting this utility model.Term as used herein " and/or " include
The arbitrary and all of combination of one or more related Listed Items.
Electric hammer in this utility model one embodiment, including housing, chuck, motor, conversion of motion mechanism, beater mechanism 12
And rotating actuator.
Electric hammer has rotary operation for one kind and has impact power tool concurrently, the axis that housing extends before and after having a longitudinal direction
14, chuck is located at housing along the front end in axis 14 direction, for clamping work head.Housing rear end in axial direction is provided with confession
The handle that operator grips, then the impact direction of this axis 14 direction as electric hammer.Motor is arranged in housing, the output providing
Export for rotation, the rotation output of motor is converted to and moves along a straight line and be transferred to beater mechanism 12 by conversion of motion mechanism, impact
Mechanism 12 drives work for linear motion.Specifically, movement conversion mechanism can make the common oscillating rod type in this area it is also possible to
Make centering type, be not limited thereto.Rotating actuator is arranged in housing, is driven by motor and drives work head to rotate, such as
This, realize not only rotatable operation but also can achieve impact operation.
Describe the beater mechanism 12 in this utility model referring to Fig. 1 in detail.
As shown in figure 1, beater mechanism 12 includes cylinder 122, the percussion hammer 124 as impulse member, piston 126 and conduct centre
The lance 128 of part.Cylinder 122 is arranged in housing along the longitudinally of housing, and coaxial with housing, piston 126, percussion hammer 124,
Lance 128 is slidingly arranged in cylinder 122 along housing axis 14, and in the present embodiment, this movement conversion mechanism is that centering type turns
Converting mechanism, movement conversion mechanism includes the pivoted arm 162 being connected with piston 126, and motor drives piston 126 in gas by pivoted arm 162
Interior axis 14 direction along housing of cylinder 122 is that the impact direction of electric hammer moves back and forth.Percussion hammer 124 is located at the front side of piston 126,
Form airtight air chamber 121, movement conversion mechanism is made by machine driving in cylinder 122 between percussion hammer 124 and piston 126
Make straight reciprocating motion with band piston 126 in cylinder 122, with the sliding action of the linear reciprocation of piston 126, air chamber
Gas in 121, by compression repeatedly or expansion, drives percussion hammer 124 reciprocating power, percussion hammer in cylinder 122 to provide
124 shock lances 128, lance 128 clashes into the work head positioned at housing forward end again, so that the impact kinetic energy transmission of lance 128
To work head.
This lance 128 is socketed on inside sleeve 18 along housing axis 14 direction, and sleeve 18 is located at the front end of cylinder 122, horse
Reach and rotated around aforesaid housing axis 14 by rotating actuator band moving sleeve 18, sleeve 18 drives work head to rotate again
Motion.So, in conjunction with above-mentioned ballistic movement, motor can drive work head to be provided simultaneously with rotating energy and impact energy.
Wherein, this percussion hammer towards this piston end face be curved surface, and centered on symmetric figure.
Error can be produced generally, due in manufacture and processing, lead to percussion hammer not fit like a glove with cylinder matching degree, then make
Percussion hammer can vibrate in movement, and in air chamber, the energy of savings is partly consumed in vibration.And the end face of percussion hammer 124 is subject to
In this end face, the percussion hammer in this utility model is curved surface towards the end face of piston to the pressure perpendicular arriving, and centered on symmetric figure,
Make the pressure that percussion hammer 124 bears uniformly, the skew in percussion hammer relative axis direction is little, and percussion hammer 124 vibrates little, hammering energy consumption
Little, and then farthest make use of the hammering energy producing in air chamber 121, improve drilling efficiency.
Additionally, during air chamber 121 accumulation hammering energy, the pressure of the diverse location of end face 1242 of percussion hammer 124
Power is different, linear change, so that the active force to percussion hammer 124 that the pressure value producing in air chamber 121 produced in moment is increased,
Further increase the hammering energy of beater mechanism 12.
Preferably, this cylinder 122 has an axis, this percussion hammer 124 towards piston 126 end face in the axial direction away from axis
Distance be gradually reduced.Specifically, this percussion hammer 124 caves inward formation one with cylinder 122 towards the end face 1242 of piston 126
Axis, i.e. centrosymmetric curved surface on the basis of the axis 14 of housing.In the present embodiment, this percussion hammer 124 is towards the end face of piston 126
1242 is conical surface.
It should be appreciated that in some other embodiment, this percussion hammer 124 can be also other towards the end face of piston 126
Curved surface, enables the purpose of above-mentioned raising hammering energy utilization rate, for example, percussion hammer 124 towards the end face of this piston 126 is
With a parabola as bus, rotate about the axis the curved surface of formation, or be sphere.Wherein, this percussion hammer 124 is towards the end of piston 126
Face also can protrude out along axis towards piston 124 direction, enables to make percussion hammer 124 vibrate little, and hammering energy consumes little, and then maximum journey
The hammering energy that make use of generation in air chamber 121 of degree, improves the purpose of drilling efficiency.
Preferably, the end face 1242 of end face 1262 shape towards percussion hammer 124 for this piston 126 and its percussion hammer 124 relative
Mating shapes.Specifically, this piston 126 is formed on the basis of the axis of cylinder 122 towards end face 1262 projection of percussion hammer 124
Centrosymmetric curved surface is that is, identical with the end surface shape of percussion hammer 124.So, further increase air chamber 121 to be compressed to form
Larger hammering energy, and make percussion hammer 124 uniform force further, when hammering energy accumulates to extreme higher position, make percussion hammer 124
The pressure Relatively centralized bearing, percussion hammer 124 vibrates little, and the energy of its hammering lance 128 concentrates on the center of percussion hammer 124, enters
And farthest make use of the hammering energy producing in air chamber 121, improve drilling efficiency.In the present embodiment, this piston
126 towards percussion hammer 124 end face 1262 be conical surface.
It is appreciated that this piston 126 is alternatively plane towards the end face of percussion hammer 124, it is not limited thereto.
Above-mentioned beater mechanism 12 and electric hammer, the percussion hammer 124 of beater mechanism 12 and piston 126 end face 1242 relative to each other,
1262 are configured to conical surface, thus forming the air chamber 121 of an abnormity in cylinder 122, make the pressure that percussion hammer 124 bears
Uniformly, the skew in percussion hammer relative axis direction is little, and percussion hammer 124 vibrates little, and hammering energy consumes little, and then maximum utilizes
The hammering energy producing in air chamber 121, improves drilling efficiency.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, some deformation can also be made and improve, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.
Claims (10)
1. a kind of beater mechanism, for electric hammer, described electric hammer includes：
Housing；
Work head, positioned at described housing forward end；
Motor, is arranged at described housing, for rotating for described work head and/or moving back and forth offer power；
It is characterized in that, described beater mechanism includes：
Cylinder, is arranged at described housing；
Percussion hammer, is configured to slide in described cylinder；
Piston, is configured to move back and forth in described cylinder, to drive described percussion hammer；
Lance, is arranged between described work head and described percussion hammer, so that the hammering energy of described percussion hammer is transferred to described work
Head；
Wherein, described percussion hammer is curved surface towards the end face of described piston, and centrosymmetry.
2. beater mechanism according to claim 1 is it is characterised in that described cylinder has an axis, described percussion hammer direction
Along described axis direction, the distance away from described axis is gradually reduced the end face of described piston.
3. beater mechanism according to claim 2 is it is characterised in that described percussion hammer is along institute towards the end face of described piston
State axis towards the curved surface of the direction depression away from described piston.
4. beater mechanism according to claim 3 it is characterised in that described percussion hammer towards described piston end face be circular cone
Curved surface.
5. beater mechanism according to claim 3 is it is characterised in that described percussion hammer is with one towards the end face of described piston
Parabola is bus, the curved surface being formed around the rotation of described axis.
6. beater mechanism according to claim 3 it is characterised in that described percussion hammer towards described piston end face be ball
Face.
7. the beater mechanism according to claim 1～6 any one is it is characterised in that described piston is towards described percussion hammer
End surface shape and the end face of its described percussion hammer relative mating shapes.
8. the beater mechanism according to claim 1～6 any one is it is characterised in that described piston is towards described percussion hammer
End face be plane.
9. a kind of electric hammer is it is characterised in that include the beater mechanism as described in claim 1～8 any one.
10. electric hammer according to claim 9 is it is characterised in that described electric hammer also includes：
Housing；
Chuck, positioned at described housing forward end, for housing work head；
Motor, is arranged at described housing, for rotating for described work head and/or moving back and forth offer power；
Movement conversion mechanism, is arranged at described housing, and described piston is connected with described movement conversion mechanism, by described motor
Rotation output is converted into linear motion and is transferred to described beater mechanism；
Rotating actuator, is arranged at described housing, is driven by described motor and drives described work head rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881074.5U CN205996904U (en) | 2016-08-15 | 2016-08-15 | Beater mechanism and electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881074.5U CN205996904U (en) | 2016-08-15 | 2016-08-15 | Beater mechanism and electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205996904U true CN205996904U (en) | 2017-03-08 |
Family
ID=58198688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620881074.5U Expired - Fee Related CN205996904U (en) | 2016-08-15 | 2016-08-15 | Beater mechanism and electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205996904U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627263A (en) * | 2017-09-30 | 2018-01-26 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN109139600A (en) * | 2017-06-13 | 2019-01-04 | 王会远 | A kind of novel electric pick cylinder |
| CN110125879A (en) * | 2019-06-11 | 2019-08-16 | 江苏大艺机电工具有限公司 | Electric hammer distance controlling mechanism and electric hammer |
| CN110125878A (en) * | 2018-02-02 | 2019-08-16 | 苏州宝时得电动工具有限公司 | Electric hammer and beater mechanism |
| CN112677110A (en) * | 2019-10-18 | 2021-04-20 | 苏州宝时得电动工具有限公司 | Hammering tool |
-
2016
- 2016-08-15 CN CN201620881074.5U patent/CN205996904U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139600A (en) * | 2017-06-13 | 2019-01-04 | 王会远 | A kind of novel electric pick cylinder |
| CN107627263A (en) * | 2017-09-30 | 2018-01-26 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN107627263B (en) * | 2017-09-30 | 2023-11-10 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN110125878A (en) * | 2018-02-02 | 2019-08-16 | 苏州宝时得电动工具有限公司 | Electric hammer and beater mechanism |
| CN110125879A (en) * | 2019-06-11 | 2019-08-16 | 江苏大艺机电工具有限公司 | Electric hammer distance controlling mechanism and electric hammer |
| CN110125879B (en) * | 2019-06-11 | 2024-01-12 | 江苏大艺科技股份有限公司 | Electric hammer distance control mechanism and electric hammer |
| CN112677110A (en) * | 2019-10-18 | 2021-04-20 | 苏州宝时得电动工具有限公司 | Hammering tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20200815 |