CN105328643A - Electric hammer - Google Patents
Electric hammer Download PDFInfo
- Publication number
- CN105328643A CN105328643A CN201510692208.9A CN201510692208A CN105328643A CN 105328643 A CN105328643 A CN 105328643A CN 201510692208 A CN201510692208 A CN 201510692208A CN 105328643 A CN105328643 A CN 105328643A
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- China
- Prior art keywords
- hole
- chuck
- steel ball
- electric hammer
- cylinder body
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- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses an electric hammer which comprises a chuck, a shell, an air cylinder assembly and a transmission assembly, wherein the air cylinder assembly and the transmission assembly are arranged in the shell. The side face of the shell is provided with a handle. The chuck comprises a chuck body, a tetragonal sleeve and a clamp cover. The air cylinder assembly comprises a cylinder body. A drill brush hole and a piston hole are formed in the front part and the rear part of the cylinder body respectively. A first step at the front portion of the cylinder body extends into the tetragonal sleeve. According to the electric hammer, a drill bit is inserted and then directly collides with an impact oscillator, and impact drilling is easier; the chuck is convenient to assemble, the drill bit is inserted into and pulled out directly and quickly through cooperation of steel balls and springs; by adjusting a connection structure between the cylinder body and an impact sleeve and a connection structure between the cylinder body and the chuck, the length of the air cylinder assembly is shorter compared with a traditional air cylinder assembly; through clamping of the steel balls, quick-wear parts are more convenient to disassemble, assemble and maintain, and the service life of the electric hammer is prolonged greatly; and furthermore, the hammering strength on a drill bush assembly of a punch hammer is improved by enlarging the hole diameter of the large piston hole, and the working efficiency of the electric hammer is improved greatly.
Description
Technical field
The present invention relates to a kind of electric hammer.
Background technology
At present, there is following shortcoming in the electric hammer on market: 1) there is gap between drill bit and impact, need exert oneself forward during drill; 2) collet segment adopt by, lift, lift the operations such as location, replacing construction is long, also more loaded down with trivial details; 3) consumable accessory such as drill bush component needs special maintenance store to change, and also needs the accessories such as the jump ring be attached thereto, bearing all to unload, be not easy to regular maintenance during replacing; 4) between chuck and cylinder body, syndeton is complicated, and dismounting puts more effort; 5), when using, the hammering dynamics of block stamp is large not, and operating efficiency can not reach the intensity effect of expection.
Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rational in infrastructure, drill bit and the dismounting of enclosure interior consumable accessory easy to maintenance, the electric hammer of long service life.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of electric hammer, comprise chuck, housing and the cylinder assembly be located in housing and drive assembly, the side of housing is provided with handle, chuck comprises collet body, four square sets and chuck, four square sets form convex structure by minor diameter part and large-diameter portion, the side of large-diameter portion is by the boss clamping inside steel ball and chuck, lower spring is arranged with between the part of chuck above boss and large-diameter portion, the top of lower spring is provided with fixed bolster, the side of minor diameter part is provided with spacing hole, spring is arranged with between minor diameter part and chuck, the bottom of upper spring contacts with fixed bolster, top is provided with steel ball seat, steel ball is provided with between steel ball seat and spacing hole, collet body is set in the outside of minor diameter part and chuck, dust cap is provided with between collet body and minor diameter part, dust cap and minor diameter part clamping,
Cylinder assembly comprises cylinder body, before cylinder body, rear portion has drill bushing hole and piston hole, the first step of cylinder body front portion stretches in four square sets, this first step has a steel ball hole I be communicated with drill bushing hole, the outer wall being positioned at the first step of steel ball hole I front end is equipped with blind hole I, the steel ball clamping of blind hole I and large-diameter portion side, drill bushing is provided with drill bush component in hole, the rear portion of cylinder body has multiple pore of being communicated with piston hole and a deep gouge, piston is provided with in piston hole, one end of piston is provided with block stamp, the other end is provided with connecting rod, connecting rod is connected with the eccentric wheel of drive assembly.
Further, described drill bush component comprises impact sleeve, the outside of impact sleeve is provided with an annular groove, by this annular groove, impact sleeve is divided into forward and backward two parts, the front portion of impact sleeve is equipped with blind hole II, and blind hole II is by steel ball and steel ball hole I clamping, the rear portion of impact sleeve is equipped with steel ball hole II, be provided with in impact sleeve and impact son, the side impacting son is provided with stopper slot, and stopper slot is by steel ball and steel ball hole II activity clamping.
Further, bottom the corresponding chuck in side of described large-diameter portion and the position of fixed bolster is equipped with jump-ring slot, is provided with jump ring in jump-ring slot.
Further, the length of described spacing hole is greater than the diameter of steel ball.
Further, the aperture of described piston hole is greater than the aperture in drill bushing hole.
Compared with prior art, advantage of the present invention is: with the sub-direct collision of impact after drill bit of the present invention inserts, drill is more laborsaving; Chuck is easy to assembly, by coordinating of steel ball and spring, realizes drill bit and inserts directly, fast and extract; By the syndeton in adjustment between cylinder body and impact sleeve, between cylinder body and chuck, the length of cylinder assembly is more traditional shorter, and by steel ball clamping, dismounting safeguards that consumable accessory is convenient, greatly extends the service life of electric hammer; Improve block stamp to the hammering dynamics of drill bush component by the aperture increasing piston hole, effectively improve the operating efficiency of electric hammer.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of chuck in the present invention;
Fig. 3 is the structural representation of cylinder body in the present invention;
Fig. 4 is the structural representation of impact sleeve in the present invention.
Wherein, 1, dust cap, 2, collet body, 3, four square sets, 31, minor diameter part, 32, large-diameter portion, 33, spacing hole, 4, upper spring, 41, steel ball seat, 5, lower spring, 51, fixed bolster, 6, chuck, 7, steel ball, 8, cylinder body, 81, drill bushing hole, 82, piston hole, 83, first step, 84, blind hole I, 85, steel ball hole I, 86, pore, 87, deep gouge, 9, impact sleeve, 91, blind hole II, 92, annular groove, 93, steel ball hole II, 10, impact son, 11, stopper slot, 12, housing, 13, handle, 14, block stamp, 15, piston, 16, connecting rod, 17, eccentric wheel, 18, jump ring.
Detailed description of the invention:
As shown in Figures 1 to 4, a kind of electric hammer, comprise chuck, housing 12 and the cylinder assembly be located in housing 12 and drive assembly, the side of housing 12 is provided with handle 13, chuck comprises collet body 2, four square sets 3 and chuck 6, four square sets 3 form convex structure by minor diameter part 31 and large-diameter portion 32, the side of large-diameter portion 32 is by boss 61 clamping inside steel ball 7 and chuck 6, lower spring 5 is arranged with between the part of chuck 6 above boss 61 and large-diameter portion 32, the top of lower spring 5 is provided with fixed bolster 51, the side of minor diameter part 31 is provided with spacing hole 33, the length of spacing hole 33 is greater than the diameter of steel ball 7, spring 4 is arranged with between minor diameter part 31 and chuck 6, the bottom of upper spring 4 contacts with fixed bolster 51, top is provided with steel ball seat 41, steel ball 7 is provided with between steel ball seat 41 and spacing hole 33, collet body 2 is set in the outside of minor diameter part 31 and chuck 6, dust cap 1 is provided with between collet body 2 and minor diameter part 31, dust cap 1 and minor diameter part 31 clamping, bottom the corresponding chuck 6 in side of the large-diameter portion 32 and position of fixed bolster 51 is equipped with jump-ring slot, jump ring 18 is provided with in jump-ring slot,
Cylinder assembly comprises cylinder body 8, before cylinder body 8, rear portion has drill bushing hole 81 and piston hole 82, the aperture of piston hole 82 is greater than the aperture in drill bushing hole 81, the first step 83 of cylinder body 8 front portion stretches in four square sets 3, this first step 83 has a steel ball hole I85 be communicated with drill bushing hole 81, the outer wall being positioned at the first step 83 of steel ball hole I85 front end is equipped with blind hole I84, steel ball 7 clamping of blind hole I84 and large-diameter portion 32 side, drill bush component is provided with in drill bushing hole 81, the rear portion of cylinder body 8 has multiple pore 86 of being communicated with piston hole 82 and a deep gouge 87, piston 15 is provided with in piston hole 82, one end of piston 15 is provided with block stamp 14, the other end is provided with connecting rod 16, connecting rod 16 is connected with the eccentric wheel 17 of drive assembly.
Drill bush component comprises impact sleeve 9, the outside of impact sleeve 9 is provided with an annular groove 92, by this annular groove 92, impact sleeve 9 is divided into forward and backward two parts, the front portion of impact sleeve 9 is equipped with blind hole II91, blind hole II91 is by steel ball 7 and steel ball hole I85 clamping, and the rear portion of impact sleeve 9 is equipped with steel ball hole II93, is provided with and impacts son 10 in impact sleeve 9, the side impacting son 10 is provided with stopper slot 11, and stopper slot 11 is by steel ball 7 and steel ball hole II93 activity clamping.
Drill bit insert after chuck with sub 10 direct collisions of impact, drill is more laborsaving, need more bit change time, press down collet body 2 and just can easily take out, be convenient to routine use; Chuck is easy to assembly, by coordinating of steel ball and spring, realizes drill bit and inserts directly, fast and extract; By the syndeton in adjustment between cylinder body 8 and impact sleeve 9, between cylinder body 8 and chuck, the length of cylinder assembly is more traditional shorter, and by steel ball clamping, dismounting safeguards that consumable accessory is convenient, greatly extends the service life of electric hammer; Improve block stamp to the hammering dynamics of drill bush component by the aperture increasing piston hole 82, effectively improve the operating efficiency of electric hammer.
Claims (5)
1. an electric hammer, comprise chuck, housing and the cylinder assembly be located in housing and drive assembly, the side of described housing is provided with handle, it is characterized in that: described chuck comprises collet body, four square sets and chuck, described four square sets form convex structure by minor diameter part and large-diameter portion, the side of described large-diameter portion is by the boss clamping inside steel ball and chuck, lower spring is arranged with between the part of described chuck above boss and large-diameter portion, the top of described lower spring is provided with fixed bolster, the side of described minor diameter part is provided with spacing hole, spring is arranged with between described minor diameter part and chuck, the bottom of described upper spring contacts with fixed bolster, top is provided with steel ball seat, steel ball is provided with between described steel ball seat and spacing hole, described collet body is set in the outside of minor diameter part and chuck, dust cap is provided with between described collet body and minor diameter part, described dust cap and minor diameter part clamping,
Described cylinder assembly comprises cylinder body, before described cylinder body, rear portion has drill bushing hole and piston hole, the first step of described cylinder body front portion stretches in four square sets, this first step has a steel ball hole I be communicated with drill bushing hole, the outer wall being positioned at the first step of described steel ball hole I front end is equipped with blind hole I, the steel ball clamping of described blind hole I and large-diameter portion side, drill bush component is provided with in described drill bushing hole, the rear portion of described cylinder body has multiple pore of being communicated with piston hole and a deep gouge, piston is provided with in described piston hole, one end of described piston is provided with block stamp, the other end is provided with connecting rod, described connecting rod is connected with the eccentric wheel of drive assembly.
2. a kind of electric hammer according to claim 1, it is characterized in that: described drill bush component comprises impact sleeve, the outside of described impact sleeve is provided with an annular groove, by this annular groove, impact sleeve is divided into forward and backward two parts, the front portion of described impact sleeve is equipped with blind hole II, described blind hole II is by steel ball and steel ball hole I clamping, the rear portion of described impact sleeve is equipped with steel ball hole II, be provided with in described impact sleeve and impact son, the described side impacting son is provided with stopper slot, and described stopper slot is by steel ball and steel ball hole II activity clamping.
3. a kind of electric hammer according to claim 1, is characterized in that: bottom the corresponding chuck in side of described large-diameter portion and the position of fixed bolster is equipped with jump-ring slot, is provided with jump ring in described jump-ring slot.
4. electric hammer quick chuck according to claim 1, is characterized in that: the length of described spacing hole is greater than the diameter of steel ball.
5. air cylinder of electric hammer assembly according to claim 1, is characterized in that: the aperture of described piston hole is greater than the aperture in drill bushing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692208.9A CN105328643B (en) | 2015-10-23 | 2015-10-23 | A kind of electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692208.9A CN105328643B (en) | 2015-10-23 | 2015-10-23 | A kind of electric hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328643A true CN105328643A (en) | 2016-02-17 |
| CN105328643B CN105328643B (en) | 2018-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692208.9A Active CN105328643B (en) | 2015-10-23 | 2015-10-23 | A kind of electric hammer |
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| Country | Link |
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| CN (1) | CN105328643B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561342B (en) * | 2021-09-26 | 2021-11-26 | 江苏大艺科技股份有限公司 | Air pressure self-balancing cylinder structure for electric tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313566B (en) * | 1996-05-30 | 1998-07-08 | Bosch Gmbh Robert | Coupling for releasably attaching a tool holder to a hand machine tool |
| US6241026B1 (en) * | 1999-05-08 | 2001-06-05 | Black & Decker Inc. | Rotary hammer |
| CN200942566Y (en) * | 2006-08-28 | 2007-09-05 | 李跃辉 | Cutter angle adjustable electric pickaxe |
| CN201253841Y (en) * | 2008-09-02 | 2009-06-10 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN102922492A (en) * | 2012-10-08 | 2013-02-13 | 方大控股有限公司 | Rotatable chisel jacket assembly |
| CN203317373U (en) * | 2013-05-23 | 2013-12-04 | 池文彬 | Electric pick head and end cover assembly |
| CN205310185U (en) * | 2015-10-23 | 2016-06-15 | 江苏恒丰电动工具有限公司 | Electric hammer |
-
2015
- 2015-10-23 CN CN201510692208.9A patent/CN105328643B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313566B (en) * | 1996-05-30 | 1998-07-08 | Bosch Gmbh Robert | Coupling for releasably attaching a tool holder to a hand machine tool |
| US6241026B1 (en) * | 1999-05-08 | 2001-06-05 | Black & Decker Inc. | Rotary hammer |
| CN200942566Y (en) * | 2006-08-28 | 2007-09-05 | 李跃辉 | Cutter angle adjustable electric pickaxe |
| CN201253841Y (en) * | 2008-09-02 | 2009-06-10 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN102922492A (en) * | 2012-10-08 | 2013-02-13 | 方大控股有限公司 | Rotatable chisel jacket assembly |
| CN203317373U (en) * | 2013-05-23 | 2013-12-04 | 池文彬 | Electric pick head and end cover assembly |
| CN205310185U (en) * | 2015-10-23 | 2016-06-15 | 江苏恒丰电动工具有限公司 | Electric hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328643B (en) | 2018-08-24 |
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