CN204604251U - A kind of electric hammer - Google Patents
A kind of electric hammer Download PDFInfo
- Publication number
- CN204604251U CN204604251U CN201520312498.5U CN201520312498U CN204604251U CN 204604251 U CN204604251 U CN 204604251U CN 201520312498 U CN201520312498 U CN 201520312498U CN 204604251 U CN204604251 U CN 204604251U
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- Prior art keywords
- gear
- turning set
- plectrum
- electric hammer
- assembly
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of electric hammer, comprise body, motor, turning set assembly, cylinder assembly and intermediate shaft assembly, the one-level wheel that described motor engages described intermediate shaft assembly by motor shaft tooth drives the jackshaft of described intermediate shaft assembly to rotate, also comprise gear shift chip module, the idler gear of described intermediate shaft assembly matches with the transmitting gear of described turning set assembly to drive the turning set in described turning set assembly to rotate, described gear shift chip module realizes the gear shift conversion of described turning set by the position of stirring described idler gear, the Oscillating lever bearing that can match with described idler gear is provided with in described intermediate shaft assembly, described cylinder assembly by the swing of the fork of described Oscillating lever bearing to realize back and forth movement in the endoporus of described turning set.Electric hammer disclosed in the utility model, by the effect of gear shift chip module, can realize the gear shift of electric hammer, thus electric hammer reaches working condition requirement when needing speed change.
Description
Technical field
The utility model relates to electric tool technical field, particularly relates to a kind of electric hammer.
Background technology
Electric hammer is the class in electric drill, on the basis of electric drill, add one and driven the piston having crankshaft-link rod by motor, reciprocating air in a cylinder, cylinder air pressure is made to be cyclically-varying, hammer in the air pressure band dynamic air cylinder of change back and forth hits the top of drill bit, uses hammer percussive drill bit as us, therefore called after electric hammer.
Electric hammer can perforate on the hard materials such as concrete, brick and stone, and electric hammer perforate efficiency on above-mentioned material is very high.
The electric hammer used in prior art, rotate to realize single speed only, single speed rotates and can not meet the working condition requirement needing speed-changing rotation, thus causes operating efficiency step-down.
Therefore satisfy the demand the in use working condition of speed-changing rotation of electric hammer how is made to require it is those skilled in the art's technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of electric hammer, and this electric hammer can be satisfied the demand the working condition requirement of speed-changing rotation in use.
For solving the problems of the technologies described above, the utility model provides a kind of electric hammer, comprise body, motor, turning set assembly, cylinder assembly and intermediate shaft assembly, the one-level wheel that described motor engages described intermediate shaft assembly by motor shaft tooth drives the jackshaft of described intermediate shaft assembly to rotate, also comprise gear shift chip module, the idler gear of described intermediate shaft assembly matches with the transmitting gear of described turning set assembly to drive the turning set in described turning set assembly to rotate, described gear shift chip module realizes the gear shift conversion of described turning set by the position of stirring described idler gear, the Oscillating lever bearing that can match with described idler gear is provided with in described intermediate shaft assembly, described cylinder assembly by the swing of the fork of described Oscillating lever bearing to realize back and forth movement in the endoporus of described turning set.
Preferably, described gear shift chip module comprises guide pillar, extension spring, inner button, outer knob and button, also comprise the hammer shelves plectrum that Moveable-jacket is located at plectrum of seeking loopholes on described guide pillar, plectrum holder and seeks loopholes between plectrum and described plectrum holder described in being arranged on, described hammer shelves plectrum is connected by described extension spring with described plectrum holder, seek loopholes between plectrum and described plectrum holder described in described inner button is arranged on, described outer knob is connected with described inner button, and described button is connected with described outer knob.
Preferably, described idler gear comprises pinion and clutch gear, first fit depressions of described seek loopholes plectrum and described pinion, second fit depressions of described hammer shelves plectrum and described clutch gear, described pinion and described clutch gear all can moving axially along described jackshaft.
Preferably, described jackshaft drives described clutch gear to rotate by spline, and described jackshaft to be connected with described pinion by needle roller and to drive it to rotate, and described clutch gear is by the 3rd fit depressions of tongue and described Oscillating lever bearing.
Preferably, described transmitting gear comprises one-level gear wheel and secondary gear wheel, and described pinion matches with described one-level gear wheel, and described clutch gear matches with described secondary gear wheel.
Preferably, described one-level gear wheel and described secondary gear wheel are split-type structural.
Preferably, described inner button comprises large fan-shaped part and little fan-shaped part, and described inner button makes the multiple sets of teeth of described intermediate shaft assembly and described turning set assembly wheel be meshed to realize gear shift by described large fan-shaped part and described little fan-shaped part in described distribution of seeking loopholes between plectrum and described plectrum holder.
Preferably, described turning set assembly also comprises the torsion spring be set in successively on described turning set, steel ball baffle plate and dropout fixed head, the other end of described dropout fixed head is provided with described transmitting gear, described transmitting gear coordinates for dynamic with described turning set, described dropout fixed head is fixedly connected with described turning set, described transmitting gear is connected by steel ball with described dropout fixed head, described transmitting gear is provided with steel ball shrinkage pool, described dropout fixed head is provided with the through-hole groove that can pass for steel ball.
Preferably, described dropout fixed head is connected by steel ball with described turning set, and the two ends of described torsion spring are provided with circlip, and the stiff end of described torsion spring is provided with torque resilience pad.
Preferably, described Oscillating lever bearing coordinates by needle bearing and described jackshaft are dynamic.
The electric hammer that the utility model provides, owing to there being gear shift chip module, gear shift chip module can stir the position of idler gear in intermediate shaft assembly, because the position of idler gear changes, then not identical with the transmitting gear coordinated in turning set assembly, after motor drives the jackshaft of intermediate shaft assembly to rotate by the one-level wheel of motor shaft tooth engagement intermediate shaft assembly, idler gear sheathed on jackshaft can drive transmitting gear to rotate, thus can realize the conversion of the different gear of electric hammer.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the electric hammer that Fig. 1 provides for the utility model embodiment;
The STRUCTURE DECOMPOSITION schematic diagram of the gear shift chip module of the electric hammer that Fig. 2 provides for the utility model embodiment;
The STRUCTURE DECOMPOSITION schematic diagram of the intermediate shaft assembly of the electric hammer that Fig. 3 provides for the utility model embodiment;
The STRUCTURE DECOMPOSITION schematic diagram of the turning set assembly of the electric hammer that Fig. 4 provides for the utility model embodiment;
The structural representation of the inner button in the gear shift chip module that Fig. 5 provides for the utility model embodiment;
The structural representation of the electric hammer that Fig. 6 provides for the utility model embodiment when hammer drill;
The structural representation of the electric hammer that Fig. 7 provides for the utility model embodiment its gear shift chip module when hammer drill;
The electric hammer that Fig. 8 provides for the utility model embodiment is at single structural representation bored in the first manner;
The structural representation of electric hammer its gear shift chip module when list bores in the first manner that Fig. 9 provides for the utility model embodiment;
The electric hammer that Figure 10 provides for the utility model embodiment is at single structural representation bored in the second;
The structural representation of electric hammer its gear shift chip module when list bores in the second that Figure 11 provides for the utility model embodiment.
Detailed description of the invention
Core of the present utility model is to provide a kind of electric hammer, and this electric hammer can be satisfied the demand the working condition requirement of speed-changing rotation in use.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See the structural representation of the electric hammer that Fig. 1 and Fig. 6, Fig. 1 provide for utility model embodiment, the structural representation of the electric hammer that Fig. 6 provides for the utility model embodiment when hammer drill.
The electric hammer that the utility model embodiment provides, comprise body, motor, turning set assembly 1, cylinder assembly 4 and intermediate shaft assembly 2, motor drives the jackshaft 22 of intermediate shaft assembly 2 to rotate by a step cone 21 of motor shaft tooth engagement intermediate shaft assembly 2, also comprise gear shift chip module 3, the idler gear 23 of intermediate shaft assembly 2 matches with the transmitting gear 11 of turning set assembly 1 to drive the turning set 12 in turning set assembly 1 to rotate, gear shift chip module 3 realizes the gear shift conversion of turning set 12 by the position of stirring idler gear 23, the Oscillating lever bearing 24 that can match with idler gear 23 is provided with in intermediate shaft assembly 2, cylinder assembly 4 passes through the swing of the fork of Oscillating lever bearing 24 to realize back and forth movement in the endoporus of turning set 12.
The electric hammer that the utility model embodiment provides, after idler gear 23 is toggled it to certain position by gear shift chip module 3, after the difference of idler gear 23 and transmitting gear 11 is taken turns and is meshed, one step cone 21 of motor shaft tooth engagement intermediate shaft assembly 2 drives the jackshaft 22 of intermediate shaft assembly 2 to rotate, jackshaft 22 drives idler gear 23 to rotate, then idler gear 23 engagement rotation gear 11 drives transmitting gear 11 to rotate, transmitting gear 11 drives turning set 12 to rotate, when idler gear 23 and Oscillating lever bearing 24 match, namely the swing of Oscillating lever bearing 24 can be driven while idler gear 23 rotates, because the fork of Oscillating lever bearing 24 matches with cylinder assembly 4, thus cylinder assembly 4 back and forth movement in the endoporus of turning set 12 can be driven, the hammer drill function of electric hammer can be realized, when idler gear 23 and Oscillating lever bearing 24 do not match, namely the rotation of idler gear 23 can not drive the swing of Oscillating lever bearing 24, only to realize the brill function of electric hammer, thus by the course of work above, the gear shift function of electric hammer can be realized.
As shown in Figure 2, the STRUCTURE DECOMPOSITION schematic diagram of the gear shift chip module of electric hammer that provides for the utility model embodiment of Fig. 2.
Further, the gear shift chip module 3 that the utility model embodiment provides specifically can comprise guide pillar 31, extension spring 32, inner button 33, outer knob 34 and button 35, also comprise Moveable-jacket be located at plectrum 36 of seeking loopholes, the plectrum holder 37 on guide pillar 31 and be arranged on the hammer shelves plectrum 38 of seeking loopholes between plectrum 36 and plectrum holder 37, hammer shelves plectrum 38 is connected by extension spring 32 with plectrum holder 37, inner button 33 is arranged on seeks loopholes between plectrum 36 and plectrum holder 37, outer knob 34 is connected with inner button 33, and button 35 is connected with outer knob 34.
Outer knob 34 is connected with inner button 33, the motion of inner button 33 can be driven when rotating outer knob 34, thus cause inner button 33 to change in the part between plectrum 36 and plectrum holder 37 of seeking loopholes, thus cause plectrum 36, plectrum holder 37 and hammer shelves plectrum 38 movement relative to guide pillar 31 position of seeking loopholes, thus gear shift chip module 3 can adjust the idler gear 23 on intermediate shaft assembly 2 relative to the position of jackshaft 22 and the matching relationship adjusting idler gear 23 and Oscillating lever bearing 24, thus realize boring hammer or different brill functions.
As shown in Figure 3, the STRUCTURE DECOMPOSITION schematic diagram of the intermediate shaft assembly of electric hammer that provides for the utility model embodiment of Fig. 3.
Further, the idler gear 23 that the utility model embodiment provides comprises pinion 231 and clutch gear 232, to seek loopholes the first fit depressions of plectrum 36 and pinion 231, second fit depressions of hammer shelves plectrum 38 and clutch gear 232, pinion 231 and clutch gear 232 all can moving axially along jackshaft 22.
When the outer knob 34 of revolving outer, inner button 33 changes in the part between plectrum 36 and plectrum holder 37 of seeking loopholes, thus drive plectrum 36 of seeking loopholes to change relative to the position of guide pillar 31 with hammer shelves plectrum 38, seeking loopholes plectrum 36 can by stirring the position of pinion relative to jackshaft 22 with the first recess of pinion 231 is incompatible, hammer shelves plectrum 38 by stirring the position of clutch gear 232 relative to jackshaft 22 with the second recess of clutch gear 232 is incompatible, thus can realize the brill hammer of electric hammer or different functions of seeking loopholes.
Further, above-mentioned jackshaft 22 can drive clutch gear 232 to rotate by spline 25, and jackshaft 22 can be connected with pinion 231 by needle roller 26 and drive it to rotate, and clutch gear 232 is by the 3rd fit depressions of tongue and Oscillating lever bearing 24.Clutch gear 232 moving axially relative to jackshaft 22 can be ensured while spline 25 drives clutch gear 232 to rotate, pinion 231 moving axially relative to jackshaft 22 can be ensured while needle roller 26 drives pinion 231 to rotate.
As shown in Figure 4, the STRUCTURE DECOMPOSITION schematic diagram of the turning set assembly of electric hammer that provides for the utility model embodiment of Fig. 4.
Transmitting gear 11 can comprise one-level gear wheel 111 and secondary gear wheel 112, and pinion 231 matches with one-level gear wheel 111, and clutch gear 232 matches with secondary gear wheel 112.One-level gear wheel 111 and secondary gear wheel 112 can be split-type structural, and certain one-level gear wheel 111 also can be integral structure with secondary gear wheel 112.
As shown in Figure 5, the structural representation of the inner button in the gear shift chip module that provides for the utility model embodiment of Fig. 5.
The inner button 33 that the utility model embodiment provides comprises large fan-shaped part 331 and little fan-shaped part 332, and inner button 33 makes the multiple sets of teeth of intermediate shaft assembly 2 and turning set assembly 1 wheel be meshed to realize gear shift by large fan-shaped part 331 and little fan-shaped part 332 in the distribution between plectrum 36 and plectrum holder 37 of seeking loopholes.
Shown in Fig. 6-Figure 11, the structural representation of the electric hammer that Fig. 7 provides for the utility model embodiment its gear shift chip module when hammer drill; The electric hammer that Fig. 8 provides for the utility model embodiment is at single structural representation bored in the first manner; The structural representation of electric hammer its gear shift chip module when list bores in the first manner that Fig. 9 provides for the utility model embodiment; The electric hammer that Figure 10 provides for the utility model embodiment is at single structural representation bored in the second; The structural representation of electric hammer its gear shift chip module when list bores in the second that Figure 11 provides for the utility model embodiment.
As shown in FIG. 6 and 7, when the large fan layer of the large fan-shaped part 331 of inner button 33 is clipped in plectrum holder 37 and seeks loopholes between plectrum 36, pinion 231 engages with one-level gear wheel 111, and clutch gear 232 is in mating connection with Oscillating lever bearing 24.Motor gear drives a step cone 21 of intermediate shaft assembly 2 to rotate, one step cone 21 drives pinion 231 to rotate by jackshaft 22, pinion 231 drives one-level gear wheel 111 to rotate and drives turning set 12 to rotate, a step cone 21 drives Oscillating lever bearing 24 to rotate by jackshaft 22 again simultaneously, due to Oscillating lever bearing 24 rotation thus drive its fork to move, fork drives cylinder assembly 4 to move reciprocatingly in the endoporus of turning set 12, and the pneumatic hammer promoted in cylinder assembly 4 hits i.e. block stamp, complete impact energy transmission, thus realize hammer drill function.
As can be seen from figures 8 and 9, when the large fan layer arc surface of the large fan-shaped part 331 of inner button 33 and the little fan layer of little fan-shaped part 332 one face directly be clipped in plectrum holder 37 and seek loopholes between plectrum 36 time.Pinion 231 engages with one-level gear wheel 111, clutch gear 232 does not match with Oscillating lever bearing 24 and clutch gear 232 does not also engage with secondary gear wheel 112 time.Motor gear drives a step cone 21 to rotate, one step cone 21 drives jackshaft 22 to rotate, jackshaft drives pinion 231 to rotate, and pinion 231 drives one-level gear wheel 111 to rotate and drives turning set 12 to rotate, thus realizes electric hammer list brill under a first technique.
As shown in Figures 10 and 11, when the large fan layer plane of the large fan-shaped part of inner button 33 and the arc surface of little fan layer are clipped in plectrum holder 37 and seek loopholes between plectrum 36.Pinion 231 does not engage with one-level gear wheel 111, clutch gear 232 does not coordinate with Oscillating lever bearing 24, but clutch gear 232 is meshed with secondary gear wheel 112, driven by motor one step cone 21 rotates, one step cone 21 drives clutch gear 232 to rotate by middle jackshaft 22, clutch gear 232 drives secondary gear wheel 112 to rotate, and drives turning set 12 to rotate, thus realizes electric hammer list brill under a second technique.
As shown in Figure 4, in order to realize the overload protection of electric hammer, its overload protection can be realized by moment of torsion clutch.Turning set assembly 1 can be set and also comprise the torsion spring 13 be set in successively on turning set 12, steel ball baffle plate 14 and dropout fixed head 15, the other end of dropout fixed head 15 is provided with above-mentioned transmitting gear 11, transmitting gear 11 coordinates for dynamic with turning set 12, dropout fixed head 15 is fixedly connected with turning set 12, transmitting gear 11 is connected by steel ball with dropout fixed head 15, transmitting gear 11 is provided with steel ball shrinkage pool, dropout fixed head 15 is provided with the through-hole groove that can pass for steel ball.
Because dropout fixed head 15 is connected with turning set 12 by steel ball, then for being fixedly connected with, transmitting gear 11 is provided with steel ball shrinkage pool, dropout fixed head 15 is provided with the through-hole groove that can pass for steel ball, be connected with transmitting gear 11 by dropout fixed head 15 by steel ball, the steel ball of the through-hole groove by dropout fixed head 15 blocks by the steel ball baffle plate 14 being distributed in dropout fixed head 15 opposite side.But when the complete machine Overload torque of electric hammer is greater than the moment of torsion arranged described in torsion spring 13; steel ball baffle plate 14 pushes up from dropout fixed head 15 by the through-hole groove of dropout fixed head 15 by steel ball; now steel ball will depart from the shrinkage pool of idler gear 11; thus idler gear 11 dallies on turning set 12, realizes the overload protection function of electric hammer.
Above-mentioned dropout fixed head 15 is connected by steel ball with turning set 12, the two ends of torsion spring 13 are provided with circlip 16, the stiff end of torsion spring 13 is provided with torque resilience pad 17, and the stiff end of torsion spring 13 is its one end worked near turning set 12.
Above-mentioned Oscillating lever bearing 24 coordinates with jackshaft 22 is dynamic by needle bearing 27.
From above analysis, the optimum embodiment that the utility model provides can be reached, mainly comprise body, motor, turning set assembly 1, cylinder assembly 4, intermediate shaft assembly 2 and gear shift chip module 3.Turning set assembly 1 is by transmitting gear 11, turning set 12, torsion spring 13, steel ball baffle plate 14, dropout fixed head 15, circlip 16, torque resilience pad 17, Φ 3 steel ball 18, Φ 5 steel ball 19 and Φ 3 steel ball 110, wherein idler gear 11 comprises one-level gear wheel 111 and secondary gear wheel 112, one-level gear wheel 111 and secondary gear wheel 112 can be the overall idler gears 11 of of linking together, certainly, one-level gear wheel 111 and secondary gear wheel 112 can be split-type structurals; Intermediate shaft assembly 2 comprises a step cone 21, jackshaft 22, idler gear 23, Oscillating lever bearing 24, spline 25, needle roller 26, needle bearing 27, bolt 28, bearing plate 29, bearing 210, back-up ring 211 and Φ 3 steel ball 212, and wherein idler gear 23 comprises pinion 231 and clutch gear 232; Gear shift chip module 3 comprises guide pillar 31, extension spring 32, inner button 33, outer knob 34, button 35, plectrum 36 of seeking loopholes, plectrum holder 37, hammer shelves plectrum 38, spring 39, screw 310 and spring 311, outer knob 34 screw 310 is fixedly connected with inner button 33, inner button 33 has large fan-shaped part 331 and little fan-shaped part 332 double-layer structure, to seek loopholes the fit depressions of plectrum 38 and pinion 231, the fit depressions of hammer shelves plectrum 38 and clutch gear 232.
One step cone 21 is by Φ 3 steel ball 212 and jackshaft 22 tight fit, one step cone 21 of motor gear engagement jackshaft 22 makes it rotate, one step cone to be coordinated with jackshaft by Φ 3 steel ball 212 and drives jackshaft 22 to rotate, jackshaft 22 drives clutch gear 232 to rotate by spline 25, clutch gear 232 drives Oscillating lever bearing 24 to rotate by the fit depressions of tongue and Oscillating lever bearing 24, and Oscillating lever bearing 24 is connected the hammer function making cylinder assembly 4 move back and forth to reach complete machine in the endoporus of turning set 12 with cylinder assembly 4 by fork.Simultaneously jackshaft 22 to be connected with pinion 231 by needle roller 26 and to make pinion 231 also rotary motion, pinion 231 engages with one-level gear wheel 111 and one-level gear wheel 111 is rotated, one-level gear wheel 111 is connected and fixed by Φ 5 steel ball 19 and dropout fixed head 15, dropout fixed head 15 is connected and fixed by Φ 3 steel ball 18 and turning set 12, the rotated by rotation cover 12 of one-level gear wheel 111 rotates, thus reach complete machine brill function, more than realize the complete machine hammer drill function of electric hammer.
When pinion 231 engages with one-level gear wheel 111, but when clutch gear 232 and Oscillating lever bearing 24 do not match, and when clutch gear 232 is not also meshed with secondary gear wheel 112, then realize boring function at the list of first kind of way.
When pinion 231 is not meshed with one-level gear wheel, clutch gear 232 and Oscillating lever bearing 24 do not match, but when clutch gear 232 is meshed with secondary gear wheel 112, then realizes the list of electric hammer in second under mode and bore function.
One-level gear wheel 111 is to coordinate with turning set 12, and one-level gear wheel 111 and dropout fixed head 15 pass through
steel ball 19 is connected and fixed, and one-level gear wheel 111 is provided with fixing
the shrinkage pool of steel ball 19, dropout fixed head 15 is provided with and allows
the through-hole groove that steel ball 19 moves, and dropout fixed head 15 passes through
steel ball 18 is fixedly connected with turning set 12, and torsion spring 13 is fixed on turning set 12 by circlip 16 and torsion spring pad 17, and is fixed on by steel ball baffle plate 14 in the middle of circlip 16 and dropout fixed head 15 and blocks
steel ball 19, when the Overload torque of complete machine is greater than the torsion set by torsion spring 13,
steel ball baffle plate 14 up to be pushed up by the through-hole groove of dropout fixed head 15 and torsion spring 13 is compressed by steel ball 19, now
the shrinkage pool that steel ball 19 departs from one-level gear wheel 111 makes one-level gear wheel 111 dally on turning set 12, reaches overload protection function.
The fit dimension B of moment of torsion clutch general between 10mm ~ 150mm, the fit dimension C of jackshaft general between 30mm ~ 200mm.Fit dimension A is generally between 5mm ~ 100mm.
Inner button 33 bores by realizing electric hammer list under a first technique in plectrum holder 37 and the distribution situation of seeking loopholes between plectrum 36, list under a second technique bores and bores hammer function.
Certainly, achieving above-mentioned functions above by inner button 33 in plectrum holder 37 and the distribution situation of seeking loopholes between plectrum 36, boring function or other functions, all in protection domain of the present utility model by improving the list that can also realize under a third procedure.
Above electric hammer provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (10)
1. an electric hammer, comprise body, motor, turning set assembly (1), cylinder assembly (4) and intermediate shaft assembly (2), the step cone (21) that described motor engages described intermediate shaft assembly (2) by motor shaft tooth drives the jackshaft (22) of described intermediate shaft assembly (2) to rotate, it is characterized in that, also comprise gear shift chip module (3), the idler gear (23) of described intermediate shaft assembly (2) matches with the transmitting gear (11) of described turning set assembly (1) to drive the turning set (12) in described turning set assembly (1) to rotate, described gear shift chip module (3) realizes the gear shift conversion of described turning set (12) by the position of stirring described idler gear (23), the Oscillating lever bearing (24) that can match with described idler gear (23) is provided with in described intermediate shaft assembly (2), described cylinder assembly (4) by the swing of the fork of described Oscillating lever bearing (24) to realize back and forth movement in the endoporus of described turning set (12).
2. electric hammer as claimed in claim 1, it is characterized in that, described gear shift chip module (3) comprises guide pillar (31), extension spring (32), inner button (33), outer knob (34) and button (35), also comprise Moveable-jacket and be located at plectrum of seeking loopholes (36) on described guide pillar (31), plectrum holder (37) and the hammer shelves plectrum (38) of seeking loopholes between plectrum (36) and described plectrum holder (37) described in being arranged on, described hammer shelves plectrum (38) is connected by described extension spring (32) with described plectrum holder (37), seek loopholes between plectrum (36) and described plectrum holder (37) described in described inner button (33) is arranged on, described outer knob (34) is connected with described inner button (33), described button (35) is connected with described outer knob (34).
3. electric hammer as claimed in claim 2, it is characterized in that, described idler gear (23) comprises pinion (231) and clutch gear (232), first fit depressions of described plectrum of seeking loopholes (36) and described pinion (231), second fit depressions of described hammer shelves plectrum (38) and described clutch gear (232), described pinion (231) and described clutch gear (232) all can moving axially along described jackshaft (22).
4. electric hammer as claimed in claim 3, it is characterized in that, described jackshaft (22) drives described clutch gear (232) to rotate by spline (25), described jackshaft (22) to be connected with described pinion (231) by needle roller (26) and to drive it to rotate, and described clutch gear (232) is by the 3rd fit depressions of tongue and described Oscillating lever bearing (24).
5. electric hammer as claimed in claim 4, it is characterized in that, described transmitting gear (11) comprises one-level gear wheel (111) and secondary gear wheel (112), described pinion (231) matches with described one-level gear wheel (111), and described clutch gear (232) matches with described secondary gear wheel (112).
6. electric hammer as claimed in claim 5, is characterized in that, described one-level gear wheel (111) and described secondary gear wheel (112) are split-type structural.
7. the electric hammer as described in any one of claim 3-6, it is characterized in that, described inner button (33) comprises large fan-shaped part (331) and little fan-shaped part (332), and by described large fan-shaped part (331) and described little fan-shaped part (332), the distribution between described plectrum of seeking loopholes (36) and described plectrum holder (37) makes the multiple sets of teeth of described intermediate shaft assembly (2) and described turning set assembly (1) wheel be meshed to realize gear shift to described inner button (33).
8. electric hammer as claimed in claim 1, it is characterized in that, described turning set assembly (1) also comprises the torsion spring (13) be set in successively on described turning set (12), steel ball baffle plate (14) and dropout fixed head (15), the other end of described dropout fixed head (15) is provided with described transmitting gear (11), described transmitting gear (11) coordinates for dynamic with described turning set (12), described dropout fixed head (15) is fixedly connected with described turning set (12), described transmitting gear (11) is connected by steel ball with described dropout fixed head (15), (11) are provided with steel ball shrinkage pool to described transmitting gear, described dropout fixed head (15) is provided with the through-hole groove that can pass for steel ball.
9. electric hammer as claimed in claim 8, it is characterized in that, described dropout fixed head (15) is connected by steel ball with described turning set (12), the two ends of described torsion spring (13) are provided with circlip (16), and the stiff end of described torsion spring (13) is provided with torque resilience pad (17).
10. electric hammer as claimed in claim 1, is characterized in that, described Oscillating lever bearing (24) coordinates by needle bearing (27) and described jackshaft (22) are dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312498.5U CN204604251U (en) | 2015-05-14 | 2015-05-14 | A kind of electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312498.5U CN204604251U (en) | 2015-05-14 | 2015-05-14 | A kind of electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204604251U true CN204604251U (en) | 2015-09-02 |
Family
ID=53956832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520312498.5U Withdrawn - After Issue CN204604251U (en) | 2015-05-14 | 2015-05-14 | A kind of electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204604251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802137A (en) * | 2015-05-14 | 2015-07-29 | 浙江海王电器有限公司 | Electric hammer |
-
2015
- 2015-05-14 CN CN201520312498.5U patent/CN204604251U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802137A (en) * | 2015-05-14 | 2015-07-29 | 浙江海王电器有限公司 | Electric hammer |
| CN104802137B (en) * | 2015-05-14 | 2016-05-11 | 浙江海王电器有限公司 | A kind of electric hammer |
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