CN207643057U - Electric hammer - Google Patents
Electric hammer Download PDFInfo
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- CN207643057U CN207643057U CN201721302221.XU CN201721302221U CN207643057U CN 207643057 U CN207643057 U CN 207643057U CN 201721302221 U CN201721302221 U CN 201721302221U CN 207643057 U CN207643057 U CN 207643057U
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- hammer
- pivoted housing
- electric
- electric hammer
- lance
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Abstract
The utility model provides a kind of electric hammer, and the main screw lift of the electric hammer is 0.9Kg to 1.6Kg, including：Motor, transmission mechanism, pivoted housing, transmission gear and cylinder assembly；The transmission mechanism includes：The jackshaft being connect with the motor drive, output gear and Oscillating lever bearing on the jackshaft；The transmission gear is set in outside the pivoted housing and is engaged with the output gear；The cylinder assembly is arranged in the pivoted housing, including：It is housed in the pivoted housing and the cylinder being connect with the swing rod of the Oscillating lever bearing, the percussion hammer being housed in the cylinder and the lance coordinated with the percussion hammer；It is 47 that the percussion hammer, which hits the number of lance and the ratio of the number of turns of pivoted housing rotation, in unit interval:9.The electric hammer of the utility model can be contacted fully with workpiece compared to the cutting edge of electric hammer work head on the market, realize uniformly cutting.
Description
Technical field
The utility model is related to a kind of electric hammers, belong to power tools technology field.
Background technology
Be often required to use various electric tools in engineering construction, for example, using electric hammer concrete, floor, brick wall,
And it drills on stone material.
Electric hammer is mainly made of motor, transmission mechanism, beater mechanism and collet.Wherein, transmission mechanism includes：With electricity
The jackshaft of machine drive connection, the Oscillating lever bearing and intermediate gear being set on jackshaft, the Oscillating lever bearing and intermediate gear energy
It is enough to be rotated jointly with jackshaft, and can be slided along the axis of jackshaft.Beater mechanism includes：The air cylinder group being housed in pivoted housing
Part, the cylinder assembly include：Cylinder, the Oscillating lever bearing being fixedly connected with cylinder, the lance with percussion hammer cooperation.In beater mechanism
Front end fixed chuck is to be clamped different types of work head, to realize different drilling purposes.
However, the electric hammer that main screw lift is 0.9Kg to 1.6Kg after existing removal battery pack, assist handle and work head,
The cutting edge of work head cannot be contacted fully with workpiece, and cutting is uneven, and drilling efficiency is low.
Utility model content
The utility model provides a kind of electric hammer, is asked with solving existing in the prior art above-mentioned or other potential technologys
Topic.
Some embodiments according to the present utility model, provide a kind of electric hammer, the main screw lift of the electric hammer be 0.9Kg extremely
1.6Kg, including：Motor, transmission mechanism, pivoted housing, transmission gear and cylinder assembly；The transmission mechanism includes：With the electricity
Jackshaft, the output gear and Oscillating lever bearing on the jackshaft of machine drive connection；The transmission gear is set in
The pivoted housing is outer and is engaged with the output gear；The cylinder assembly is arranged in the pivoted housing, including：It is housed in described
The cylinder that connect in pivoted housing and with the swing rod of the Oscillating lever bearing, the percussion hammer being housed in the cylinder and with the percussion hammer
The lance of cooperation；It is 47 that the percussion hammer, which hits the number of lance and the ratio of the number of turns of pivoted housing rotation, in unit interval:9.
Electric hammer as described above, wherein the percussion hammer is used to hit a diameter of 10mm of the front end of lance.
Electric hammer as described above, wherein the quality of the percussion hammer is 36g to 46g.
Electric hammer as described above, wherein the quality of the percussion hammer is 42g.
Electric hammer as described above, wherein the output rotating speed for the work head installed on the electric hammer is 810 to 912 revs/min
Clock.
Electric hammer as described above, wherein the main screw lift of the electric hammer is 1.4Kg.
Electric hammer as described above, wherein the pivoted housing includes：Front and rear and the connection front and rear
Step surface, the diameter of the front are less than the diameter at rear portion；The lance includes：Front end and rear end, the front end
It is formed with the plush copper coordinated with the percussion hammer, the rear end is resisted against on the step surface.
Electric hammer as described above, wherein be provided with sealing ring between the lance and pivoted housing.
Electric hammer as described above, wherein be provided with sealing ring between the percussion hammer and the inner wall of cylinder.
Electric hammer as described above, wherein the motor is obliquely installed relative to the jackshaft.
According to the technical solution of the utility model embodiment, when percussion hammer hits the number of lance and pivoted housing rotation in the unit interval
The ratio of the number of turns turned is 47:When 9, the cutting edge of work head is fully contacted with workpiece, can uniformly be cut workpiece, from
And improve the drilling efficiency of electric hammer.
The advantages of additional aspect of the utility model, will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
By referring to accompanying drawing described in detail below, the above and other purpose of the utility model embodiment, feature and excellent
Point will become more clearly understood from.In the accompanying drawings, by by example and it is unrestricted in a manner of multiple implementations to the utility model
Example illustrates, wherein：
Fig. 1 is the structural schematic diagram for the electric hammer that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram of lance in Fig. 1.
The schematic diagram for workpieces processing surface tool marks that Fig. 3 A are shown when being hammered for the first time in embodiment.
The schematic diagram of workpieces processing surface tool marks when Fig. 3 B show second of hammering in embodiment.
The schematic diagram for workpieces processing surface tool marks that Fig. 3 C are shown when being hammered for the third time in embodiment.
The schematic diagram of workpieces processing surface tool marks when Fig. 3 D show the 4th hammering in embodiment.
Fig. 4 shows the structural schematic diagram of the cutting edge of work head in embodiment.
In figure：
11, motor；121, jackshaft；
122, input gear；123, Oscillating lever bearing；
124, output gear；131, cylinder；
132, percussion hammer；133, lance；
1331, rear end face；1332, front end face；
1333, boss；1334, seal groove；
141, pivoted housing；142, transmission gear；
143, latch segment；15, casing；
16, handle；171, sliding sleeve；
172, dustproof cover；173, washer；
174, pressing plate；175, spring；
101, cutting edge；102, the first tool marks；
103, the second tool marks；104, third tool marks；
105, the 4th tool marks；
D:The distance between the axis of output gear and the axis of transmission gear；
L:Distance of the input gear to collet；
d:The internal diameter of cylinder.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
It is connected directly, can also can be indirectly connected through an intermediary the mutual of connection inside two elements or two elements
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is new in this practicality as the case may be
Concrete meaning in type.
Embodiment one
Fig. 1 is the structural schematic diagram of electric hammer provided in this embodiment, and Fig. 2 is the structural schematic diagram of lance in Fig. 1.It needs
Bright, the electric hammer of the present embodiment is suitable for main screw lift in 0.9Kg to the electric hammer between 1.6Kg, it is preferable that the complete machine of electric hammer
Weight is in 1.2Kg between 1.6Kg, and further, the main screw lift of electric hammer is 1.4Kg, suitable for beating 6mm extremely in workpiece surface
The hole of 10mm diameters.Wherein, main screw lift refers to that electric hammer removes the weight after battery pack, assist handle and work head.
As shown in Figure 1, the electric hammer of the present embodiment, including casing 15, motor 11, transmission mechanism, 131 component of cylinder and
Pivoted housing 141.The front end (right end in Fig. 1) of casing 15 is working end when electric hammer works, the rear end (left side in Fig. 1 of casing 15
End) it is the holding end that user holds electric hammer, the rear end of casing 15 is provided with handle 16.Pivoted housing is installed in casing 15
141, handle 16 is obliquely installed relative to the axis of pivoted housing 141.
131 component of cylinder is installed, to provide power for the hammering operation of work head in pivoted housing 141.131 groups of the cylinder
Part includes：Be housed in the cylinder 131 that in pivoted housing 141 and can be moved reciprocatingly, the percussion hammer 132 being housed in cylinder 131 and
The lance 133 that both ends coordinate with percussion hammer 132 and work head respectively.Referring to Fig. 2, optionally, being offered on percussion hammer 132 close
Sealing groove 1334 is equipped with sealing ring in seal groove 1334, to improve the leakproofness between percussion hammer 132 and pivoted housing 141.Similarly
, seal groove 1334 can also be opened up on lance 133, and sealing ring is installed in seal groove 1334, to improve lance 133 and turn
Leakproofness between set 141.It is appreciated that when percussion hammer 132 and lance 133 offer seal groove 1334, can play close
Envelope acts on, to prevent grease from revealing.
The front of pivoted housing 141 extends radially through 141 outer wall of pivoted housing and is closed being parallel to 141 axis direction of pivoted housing there are one setting
The cell wall of the elongated slot of conjunction, the elongated slot is arranged to inclined-plane, and there are one approximately spherical latch segments 143 for installation in elongated slot.Work as lock
When tight block 143 is sticked into elongated slot, latch segment 143 can only partly be extend into pivoted housing 141 and in work head under the limitation on inclined-plane
The fit depressions opened up, so that latch segment 143 is unlikely to fall in pivoted housing 141.It is also covered in the front of pivoted housing 141
Equipped with the chuck component for work head to be clamped.The chuck component includes：It is set in sliding sleeve 171, the Yi Jian of 141 periphery of pivoted housing
Dustproof cover 172 mounted in 171 front end of sliding sleeve.The washer 173 coordinated with latch segment 143 is fixed in sliding sleeve 171, for limiting lock
Tight block 143, avoids it from deviating from out of elongated slot.It is fixed with the pressing plate 174 coordinated with latch segment 143 at the rear portion of washer 173, is pressing
Spring 175 is provided between plate 174 and pivoted housing 141.Pivoted housing 141 includes：Front, rear portion and the platform for connecting front and rear
Terrace and the diameter of front are less than the diameter at rear portion, and one end of above-mentioned spring 175 is supported on step surface, and the other end is then supported
In the rear surface of pressing plate 174.
The transmission gear 142 being sequentially connected with transmission mechanism is further fixed on pivoted housing 141, to pass through transmission mechanism band turn
141 rotation of set.In the present embodiment, transmission mechanism includes：Input gear 122, Oscillating lever bearing 123, input gear 122, centre
Axis 121 and output gear 124.The input gear 122 of transmission mechanism be fixed on jackshaft 121 and with the output of motor 11
The gear of axis engages, to be rotated by the jackshaft 121 of 11 drive transmission device of motor.The output gear 124 of transmission mechanism is pacified
It is engaged on jackshaft 121 and with the transmission gear 142 being fixed on pivoted housing 141, to drive pivoted housing 141 to rotate.This
Sample, when corresponding work head is clamped in chuck component, user can carry out drilling operation with electric hammer provided in this embodiment.
It continues to refer to figure 1, the Oscillating lever bearing 123 of transmission mechanism includes inner ring and outer ring.Wherein, inner ring is mounted on jackshaft
On 121 the second shaft portion, and can be around center axis rotation；The cylinder 131 of integrally formed swing rod and 131 component of cylinder is cut with scissors with outer ring
It connects, to which when jackshaft 121 drives inner ring rotation, swing rod can be along the axis oscillating of jackshaft 121, so that 131 edge of cylinder
The axis of pivoted housing 141 moves reciprocatingly, the air between 131 inner wall of compression cylinder and percussion hammer 132, and percussion hammer 132 is pushed to hit
Bar 133, and then work head is driven to move reciprocatingly along the axis of pivoted housing 141, to carry out pricker chisel operation.
It is contemplated that in the percussion hammer 132 in 131 component of transmission gear 142 and cylinder on pivoted housing 141 passes through simultaneously
When countershaft 121 is driven, if being clamped with work head in chuck component, drilling and pricker chisel operation can be carried out at the same time.
But existing Electric hammer drive mechanism drives lance 133 to hit work head and pivoted housing 141 is driven to drive work simultaneously
When head rotation on workpiece to punch, uniform cutting can not achieve.So-called uniform cutting refers to that the cutting edge of work head passes through
Hammering device is contacted with workpieces processing, and the tool marks of recess are formed on workpieces processing surface, and by multiple hammering, tool marks can incite somebody to action
The even circumferential to be drilled is divided into the sector region that multiple central angles are acute angle.In limited hammer number, in workpieces processing table
The sector region that face is formed is more uniform, more contributes to the raising of drilling efficiency, if in identical hammer number, the fan of formation
Shape regional perspective is uneven, then larger sector region can not be removed, and will influence the efficiency of drilling.
As shown in Fig. 3 A to Fig. 3 D and Fig. 4, illustrate that the concept uniformly cut, Fig. 3 A are first so that hammer drill is than 47/9 as an example
Cutting edge 101 is contacted with workpieces processing when secondary hammering, in the first tool marks 102 that workpieces processing surface is formed, first tool marks
Workpieces processing surface is divided into two semicircles by 102.Cutting edge 101 is contacted with workpieces processing when Fig. 3 B are second of hammering, is being added
Workpieces processing surface is divided into four by the second tool marks 103 that work workpiece surface is formed, first tool marks, 102 and second tool marks 103
A sector region, including two larger sector regions and two smaller sector regions.Fig. 3 C are that third time is cut when hammering
Sword 101 is contacted with workpieces processing, and in the third tool marks 104 that workpieces processing surface is formed, the third tool marks 104 are formed in above-mentioned
In two larger sector regions close to centre position, so that above-mentioned zone is divided equally as far as possible, workpieces processing surface be divided into six
A sector region, including four larger sector regions and two smaller sector regions, four larger sector region area phases
Together, two smaller sector region area is identical.Cutting edge 101 is contacted with workpieces processing when Fig. 3 D are the 4th hammering, is being processed
The 4th tool marks 105 that workpiece surface is formed, the 4th tool marks 105 are formed in the larger sector region two of which phase of aforementioned four
To sector region close to centre position, divided sector region is made to divide equally as far as possible.Likewise, in finite number of time hammer later
In hitting, the tool marks desirably formed can divide equally the maximum sector region of area.By the hammering of finite number of time, can realize
The hammer drill of even cutting on the surface of workpieces processing than can forming the uniform sector region of multiple areas, being conducive to machine away
The surface of workpieces processing.
The hammer drill uniformly cut is can not achieve always to concentrate in fixed region than possible tool marks, it can not be in workpieces processing
Surface formation area is uniformly fan-shaped, causes to be difficult to machine away the part for not forming tool marks, influences the efficiency of cutting.
Therefore, how to realize that the uniform cutting of electric hammer is always that this field is eager to solve the problems, such as.Applicant passes through to city
Electric hammer is largely tested on face, and is analyzed to test result, has then made a large amount of model machines according to analysis result
It is found after carrying out actual test, when percussion hammer 132 hits the number of lance 133 and the number of turns of the rotation of pivoted housing 141 in the unit interval
Ratio (hereinafter referred to as " hammer drill ratio ") is 47:When 9, electric hammer can uniformly cut workpiece surface so that its working efficiency
It is significantly improved.
It, can be by adjusting being installed on the transmission gear 142 and jackshaft 121 installed on pivoted housing 141 in actual design
The number of teeth of output gear 124 obtain above-mentioned hammer drill ratio.Preferably, the number of teeth of transmission gear 142 can be designed to 47,
And the number of teeth of output gear 124 is designed to 9.The present embodiment is 47 by controlling the hammer drill ratio of electric hammer:9 realize uniformly cutting,
And then improve the working efficiency of electric hammer.
Embodiment two
The present embodiment is the improvement carried out on the basis of embodiment one, to further increase the working efficiency of electric hammer.
Specifically, in the present embodiment, it is found by the applicant that being used to hit the front end of lance 133 by adjusting percussion hammer 132
Diameter, to improve the working efficiency of electric hammer.Table 1 is that the diameter of 132 front end of percussion hammer is respectively two model machines of 6mm and 10mm
Beat the time used in the hole of same apertures, same depth.
Table 1
From table 1 it follows that a diameter of 6mms of a diameter of 10mm of 132 front end of percussion hammer than percussion hammer 132 front end
The working efficiency higher of electric hammer.Therefore, the present embodiment is by being preferably 10mm by the diameter of 132 front end of percussion hammer, it is possible to reduce
The punching time of electric hammer, to improve the working efficiency of electric hammer.
Embodiment three
The present embodiment is to be improved based on any of the above embodiments, to improve the working efficiency of electric hammer.
By studying and testing, it has been found that the quality by adjusting percussion hammer 132 can equally reach raising electric hammer work
Make the purpose of efficiency.Table 2 is when the hammer drill of electric hammer ratio is 47/9, and 132 mass of percussion hammer is respectively the three of 38g, 40g and 42g
A model machine beats the time used in the hole of same apertures, same depth.
Table 2
From Table 2, it can be seen that when the quality of percussion hammer 132 increases, the working efficiency of electric hammer also accordingly improves.But
Applicant further found that when the weight of percussion hammer 132 is more than 46g, the elasticity of the air spring formed between cylinder inner wall and percussion hammer
Potential energy pushes percussion hammer to move reciprocatingly and encounters difficulties, and apparent decline occurs in the working efficiency of electric hammer.Similarly, work as percussion hammer
132 weight be less than 36g when, the kinetic energy of Oscillating lever bearing when not being fully converted to the elastic potential energy of air spring, percussion hammer
Movement velocity has had exceeded the movement velocity of cylinder, leads to energy loss, reduces the working efficiency of electric hammer.Therefore, this reality
Apply example selected 36 to 46g mass percussion hammer.Preferably, the quality of percussion hammer is 42g.
Example IV
The present embodiment is to be improved based on any of the above embodiments, to improve the working efficiency of electric hammer.
Applicant further found that can be by adjusting the output rotating speed of work head, to further increase the working efficiency of electric hammer.
Table 3 is when the hammer drill of electric hammer ratio is 47/9, the output rotating speed that adjusts work head is respectively 810 revs/min, 873 revs/min,
And at 912 revs/min, model machine beats the time used in the hole of same apertures, same depth.
Table 3
From table 3 it is observed that when the output rotating speed as head is 810 to 912 revs/min, the output rotating speed of work head
It is higher, it is shorter the time required to punching.In addition, applicant further found that, when the output rotating speed of work head is more than 912 revs/min, electricity
The rotating speed of machine accordingly improves, too big to the amplitude of fluctuation of cylinder, can not be fully converted to the swing rod energy of Oscillating lever bearing 123
The hammering energy of percussion hammer.And when the output rotating speed of work head is less than 810 revs/min, the rotating speed of motor accordingly reduces, work head
The hammering energy of reception is too small, and working efficiency is low.Therefore in the present embodiment by the output rotating speed of work head be set as 810 to 912 turns/
Minute.Preferably, the output rotating speed of electric hammer work head is set as 912 revs/min.
It is appreciated that in present specification, does not limit and has to simultaneously control 11 rotating speed of 132 mass of percussion hammer and motor,
11 rotating speed of 132 mass of percussion hammer or motor can also be individually controlled in certain embodiments；What is more, the present embodiment is not also arranged
Except by controlling percussion hammer 132 front end diameter, 132 mass of percussion hammer, pivoted housing 141 rotating speed in any one or it is multiple come
Improve the working efficiency of electric hammer.
By test, in a specific test prototype, the main screw lift of electric hammer is 1.4Kg, and wherein hammer drill ratio is 47/
9, a diameter of 10mm of percussion hammer front end, the quality of percussion hammer are 42g, the output rotating speed of work head is 912 revs/min.Work as use
It is 50mm that the electric hammer, which beats depth, and when hole of aperture 6mm, 8mm, 10mm only needs 5.3s, 6.8s, 9.5s respectively, than on the market
At least 1.8s, 2.3s and 0.7s is respectively shortened in the hole required time that the electric hammer of same heavyweight beats the same aperture of same depth.From
The working efficiency that the above test data can be seen that the relatively existing electric hammer of working efficiency of the electric hammer of the present embodiment has and obviously carries
It is high.
Embodiment five
The present embodiment is the improvement carried out based on any of the above embodiments, to reduce the length of electric hammer.
Specifically, in the present embodiment, as shown in Fig. 2, second end face that lance 133 and work head coordinate is transversal
Face area is more than the cross-sectional area for first end face that lance 133 coordinates with percussion hammer 132, that is, lance 133 is matched with work head
The diameter of the front end face 1332 of conjunction is more than the diameter for the rear end face 1331 that lance 133 coordinates with percussion hammer 132.Specifically, be by
Lance 133 forms boss 1333 with the rear end system that percussion hammer 132 coordinates, and the front end that lance 133 coordinates with work head is not formed then
Boss 1333, so that the front end of lance 133 cannot extend into pivoted housing as the lance 133 in existing percussion hammer 132
In the smaller front of 141134 diameters, correspondingly, in order to be adapted to the lance 133 shortened, the pivoted housing of the electric hammer in the present embodiment
141 and the distance of sliding sleeve 171 reduced turn so that an end of the work head being clamped in collet 14 can extend into
The step surface position and lance 133 for extending into the rear portion that set 141 is relatively large in diameter or at least pivoted housing 141 coordinate.
The electric hammer of the present embodiment, since lance 133 shortens, while the length of pivoted housing 141 also shorter, so that electric
The length of hammer shortens, and electric hammer is more small and exquisite.
Embodiment six
Based on any of the above embodiments, optionally, by selecting heat safe grease and using heat safe
Material makes the mode of transmission mechanism to make electric hammer that can also work normally at high temperature.Again optionally, come using 8-shaped holder
Support and positioning jackshaft 121 and cylinder 131, to improve the positioning intensity of cylinder 131 and jackshaft 121, to enhance cylinder
131 stability, referring to the utility model patent of Publication No. CN206066361U, which is fully incorporated the application as ginseng
It examines.Again optionally, be arranged between 11 holder of motor and casing 15 sealing ring and output gear 124 and transmission gear 142 it
Between setting relief hole improve the leakproofness of grease, referring to the utility model patent of Publication No. CN204913815U, the case is complete
Portion is incorporated herein by reference.
In the description of the present invention, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combines and combination.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. the main screw lift of a kind of electric hammer, the electric hammer is 0.9Kg to 1.6Kg, the electric hammer includes：Motor, turns transmission mechanism
Set, transmission gear and cylinder assembly；
The transmission mechanism includes：Jackshaft, the output gear on the jackshaft being connect with the motor drive
And Oscillating lever bearing；
The transmission gear is set in outside the pivoted housing and is engaged with the output gear；
The cylinder assembly is arranged in the pivoted housing, including：Be housed in the pivoted housing and with the swing rod of the Oscillating lever bearing
The cylinder of connection, the percussion hammer being housed in the cylinder and the lance with percussion hammer cooperation；
It is characterized in that, the ratio for the number of turns that the number of the percussion hammer shock lance is rotated with the pivoted housing in the unit interval is
47:9。
2. electric hammer according to claim 1, which is characterized in that the percussion hammer is used to hit a diameter of of the front end of lance
10mm。
3. electric hammer according to claim 1, which is characterized in that the quality of the percussion hammer is 36g to 46g.
4. electric hammer according to claim 3, which is characterized in that the quality of the percussion hammer is 42g.
5. electric hammer according to claim 3, which is characterized in that the output rotating speed for the work head installed on the electric hammer is
810 to 912 revs/min.
6. electric hammer according to claim 1, which is characterized in that the main screw lift of the electric hammer is 1.4Kg.
7. according to claim 1-5 any one of them electric hammers, which is characterized in that the pivoted housing includes：Front and rear and
The step surface of the front and rear is connected, the diameter of the front is less than the diameter at rear portion；
The lance includes：Front end and rear end, the front end is formed with the plush copper coordinated with the percussion hammer, described
Rear end is resisted against on the step surface.
8. according to claim 1-5 any one of them electric hammers, which is characterized in that be provided with sealing between the lance and pivoted housing
Circle.
9. according to claim 1-5 any one of them electric hammers, which is characterized in that be arranged between the percussion hammer and the inner wall of cylinder
There is sealing ring.
10. according to claim 1-5 any one of them electric hammers, which is characterized in that the motor inclines relative to the jackshaft
Tiltedly setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721302221.XU CN207643057U (en) | 2017-09-30 | 2017-09-30 | Electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721302221.XU CN207643057U (en) | 2017-09-30 | 2017-09-30 | Electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207643057U true CN207643057U (en) | 2018-07-24 |
Family
ID=62883696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721302221.XU Active CN207643057U (en) | 2017-09-30 | 2017-09-30 | Electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207643057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036095A1 (en) * | 2019-08-28 | 2021-03-04 | 浙江信源电器制造有限公司 | Novel electric hammer |
-
2017
- 2017-09-30 CN CN201721302221.XU patent/CN207643057U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036095A1 (en) * | 2019-08-28 | 2021-03-04 | 浙江信源电器制造有限公司 | Novel electric hammer |
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