CN103894981A - Electric hammer - Google Patents
Electric hammer Download PDFInfo
- Publication number
- CN103894981A CN103894981A CN201210568066.1A CN201210568066A CN103894981A CN 103894981 A CN103894981 A CN 103894981A CN 201210568066 A CN201210568066 A CN 201210568066A CN 103894981 A CN103894981 A CN 103894981A
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- electric hammer
- transmission mechanism
- motor
- working head
- chuck
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Abstract
The invention discloses an electric hammer. The electric hammer comprises a shell and a chuck, wherein the chuck comprises a rotating sleeve used for containing a working head and a sliding sleeve located on the periphery of the rotating sleeve, a tup is located between an air cylinder and the working head, the air cylinder comprises an air cylinder sleeve and a piston, a swing rod is installed on the air cylinder sleeve of the air cylinder, a transmission mechanism is installed at one end of the swing rod and used for driving the swing rod to move back and forth, and a motor is connected to the transmission mechanism and used for transmitting rotation torque of the motor to the swing rod through the transmission mechanism; the motor comprises a stator shell and a rotor iron core located in the stator shell, a reverser is installed at one end of the rotor iron core, the other end of the rotor iron core serves as an output shaft, a winding coil is arranged on the outer surface of the rotor iron core, multiple pairs of main magnetic poles are arranged on the stator shell, and a rectification unit is located between the input end of the electric hammer and the motor. It can be avoided that in the using process of the electric hammer, crushed stone and other foreign matters enter the electric hammer to destroy a winding and cause sparks, and the electric hammer is smaller in size, lighter in weight and better in accessibility.
Description
Technical field
The present invention relates to a kind of electric hammer, belong to field of power tools.
Background technology
Existing electric hammer, has housing, is arranged on the driving shaft in housing, is arranged on the chuck on housing, and chuck is used for clamping working head.The driving shaft that working head rotatablely moves by insertion tool and being arranged in chuck by the latch segment restrictive axial motion in insertion working head locking slot.In the time of installment work, working head is directly inserted to chuck and can realize the locking of working head; In the time taking out working head, move axially the outer sliding sleeve of chuck, outer sliding sleeve drives inner sliding sleeve to move, and latch segment can be departed from working head locking slot, to realize the operation of release working head, takes out working head.
Summary of the invention
The object of this invention is to provide a kind of electric hammer, this electric hammer can be avoided in use the flying into of foreign matter such as rubble and destroy the generation of winding and spark of electric hammer, volume is less, weight is lighter, accessibility is better, the moment of torsion of unit volume motor output, more powerful, thus be conducive to that operating personnel carry and better human engineering.
For achieving the above object, the technical solution used in the present invention is: a kind of electric hammer, comprise housing, be installed on the chuck of housing leading section, in this chuck, clamping slidably has working head, described chuck comprise for the pivoted housing of storage working head and are positioned at the sliding sleeve of pivoted housing periphery;
Transmission mechanism, for driving this working head reciprocating;
One motor is connected to described transmission mechanism, for giving described fork by the rotation torque of motor by this transmission mechanism transmission;
Described motor comprises stator case and is positioned at the rotor core of stator case, between the armature winding of rotor core and stator case, be coated with sulfuration overcoat, this rotor core one end is provided with commutator, the other end is output shaft, rotor core outer surface is provided with winding coil, and described stator case is provided with some to main pole;
One rectification unit is between electric hammer input and motor.
In technique scheme, further improved technical scheme is as follows:
1. in such scheme, a percussion hammer is between cylinder and working head, and for impacting described working head, described cylinder comprises cylinder jacket and piston, and its piston is used for impacting described percussion hammer.
2. in such scheme, described cylinder comprises cylinder jacket and piston, and its piston is used for impacting described percussion hammer, one fork, it is installed in the cylinder jacket of cylinder, for driving this cylinder jacket motion, described fork is installed to described transmission mechanism one end, for driving this fork reciprocating.
3. in such scheme, described transmission mechanism is gear reduction transmission mechanism or cam drive.
4. in such scheme, described main pole is rare-earth permanent magnet or ferrite permanent magnet.
5. in such scheme, described rectification unit comprises the first half-bridge branch road of being connected by first, second diode in parallel and the second half-bridge branch road by the 3rd, the 4th diode series connection, positive terminal and the negative pole end of the first half-bridge branch road and the second half-bridge branch road are connected respectively to described input end of motor, and the contact of described first, second diode and the 3rd, the 4th diode is as ac input end.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Electric hammer of the present invention, one motor is connected to described transmission mechanism, for giving described fork by the rotation torque of motor by this transmission mechanism transmission; Motor comprises stator case and the rotor core that is positioned at stator case, and this rotor core one end is provided with commutator, and the other end is output shaft, and rotor core outer surface is provided with winding coil, and stator case is provided with some to main pole; One rectification unit is between electric hammer input and motor, its volume is less, weight is lighter, accessibility is better, the moment of torsion of unit volume motor output, more powerful, is further conducive to dwindle electric hammer volume, thereby is conducive to that operating personnel carry and better human engineering; Secondly, between the armature winding of rotor core of the present invention and stator case, be coated with sulfuration overcoat, can avoid in use the flying into of foreign matter such as rubble and destroy the generation of winding and spark of electric hammer.
Brief description of the drawings
Accompanying drawing 1 is electric hammer structural representation of the present invention;
Accompanying drawing 2 is rectification unit structural representation of the present invention;
Accompanying drawing 3 is electric machine structure schematic diagram of the present invention.
In above accompanying drawing: 1, housing; 2, chuck; 3, working head; 4, pivoted housing; 5, sliding sleeve; 6, percussion hammer; 7, cylinder; 8, fork; 9, transmission mechanism; 10, motor; 11, stator case; 12, rotor core; 13, commutator; 14, output shaft; 15, winding coil; 16, main pole; 17, rectification unit; 171, the first half-bridge branch road; 172, the second half-bridge branch road; 18, electric hammer input; 19, sulfuration overcoat.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of electric hammer, comprise housing 1, be installed on the chuck 2 of housing 1 leading section, in this chuck 2, clamping slidably has working head 3, described chuck 2 comprise for the pivoted housing 4 of storage working head 3 and are positioned at the sliding sleeve 5 of pivoted housing 4 peripheries; One percussion hammer 6 is between cylinder 7 and working head 3, for impacting described working head 3; Described cylinder 7 comprises cylinder jacket and piston, and its piston is used for impacting described percussion hammer 6;
Fork 8, it is installed in the cylinder jacket of cylinder 7, for driving this cylinder jacket motion;
One motor 10 is connected to described transmission mechanism 9, for giving described fork 8 by the rotation torque of motor 10 by these transmission mechanism 9 transmissions;
Described motor 10 comprises stator case 11 and is positioned at the rotor core 12 of stator case 11, between the armature winding of rotor core 12 and stator case 11, be coated with sulfuration overcoat 19, these rotor core 12 one end are provided with commutator 13, the other end is output shaft 14, rotor core 12 outer surfaces are provided with winding coil 15, and described stator case 11 is provided with some to main pole 16;
One rectification unit 17 is between electric hammer input 18 and motor 10.
Above-mentioned transmission mechanism 9 is gear reduction transmission mechanism or cam drive.
Above-mentioned main pole 16 is rare-earth permanent magnet or ferrite permanent magnet.
Above-mentioned rectification unit 17 comprises the first half-bridge branch road 171 of being connected by first, second diode D1, D2 in parallel and the second half-bridge branch road 172 by the 3rd, the 4th diode D3, D4 series connection, the positive terminal of the first half-bridge branch road 171 and the second half-bridge branch road 172 and negative pole end are connected respectively to described motor 10 inputs, and the contact of described first, second diode D1, D2 and the 3rd, the 4th diode D3, D4 is as ac input end.
To sum up, its volume of the electric hammer of above-mentioned embodiment is less, weight is lighter, accessibility is better, and the moment of torsion of unit volume motor output, more powerful, is further conducive to dwindle electric hammer volume, thereby is conducive to that operating personnel carry and better human engineering; Secondly, between the armature winding of rotor core of the present invention and stator case, be coated with sulfuration overcoat, can avoid in use the flying into of foreign matter such as rubble and destroy the generation of winding and spark of electric hammer.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. an electric hammer, it is characterized in that: comprise housing (1), be installed on the chuck (2) of housing (1) leading section, in this chuck (2), clamp slidably the sliding sleeve (5) that has working head (3), described chuck (2) to comprise the pivoted housing (4) of confession storage working head (3) and be positioned at pivoted housing (4) periphery;
Transmission mechanism (9), for driving this working head (3) reciprocating;
One motor (10) is connected to described transmission mechanism (9), for giving described fork (8) by the rotation torque of motor (10) by this transmission mechanism (9) transmission;
Described motor (10) comprises stator case (11) and is positioned at the rotor core (12) of stator case (11), between the armature winding of rotor core (12) and stator case (11), be coated with sulfuration overcoat (19), this rotor core (12) one end is provided with commutator (13), the other end is output shaft (14), rotor core (12) outer surface is provided with winding coil (15), and described stator case (11) is provided with some to main pole (16);
One rectification unit (17) is positioned between electric hammer input (18) and motor (10).
2. electric hammer according to claim 1, it is characterized in that: a percussion hammer (6) is positioned between cylinder (7) and working head (3), be used for impacting described working head (3), described cylinder (7) comprises cylinder jacket and piston, and its piston is used for impacting described percussion hammer (6).
3. electric hammer according to claim 1, it is characterized in that: described cylinder (7) comprises cylinder jacket and piston, its piston is used for impacting described percussion hammer (6), one fork (8), it is installed in the cylinder jacket of cylinder (7), be used for driving this cylinder jacket motion, described fork (8) is installed to described transmission mechanism (9) one end, for driving this fork (8) reciprocating.
4. according to the electric hammer described in any one in claim 1 ~ 3, it is characterized in that: described transmission mechanism (9) is gear reduction transmission mechanism or cam drive.
5. according to the electric hammer described in any one in claim 1 ~ 3, it is characterized in that: described main pole (16) is rare-earth permanent magnet or ferrite permanent magnet.
6. according to the electric hammer described in any one in claim 1 ~ 3, it is characterized in that: described rectification unit (17) comprises in parallel by first, the second diode (D1, D2) series connection the first half-bridge branch road (171) and by the 3rd, the 4th diode (D3, D4) the second half-bridge branch road (172) of series connection, the positive terminal of the first half-bridge branch road (171) and the second half-bridge branch road (172) and negative pole end are connected respectively to described motor (10) input, described first, the second diode (D1, D2) the and three, the 4th diode (D3, D4) contact is as ac input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210568066.1A CN103894981A (en) | 2012-12-25 | 2012-12-25 | Electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210568066.1A CN103894981A (en) | 2012-12-25 | 2012-12-25 | Electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103894981A true CN103894981A (en) | 2014-07-02 |
Family
ID=50986721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210568066.1A Pending CN103894981A (en) | 2012-12-25 | 2012-12-25 | Electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103894981A (en) |
Cited By (2)
| 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 |
| CN114211233A (en) * | 2021-12-01 | 2022-03-22 | 贵州航天精工制造有限公司 | Bolt thread sleeve mounting method and bolt thread sleeve mounting tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117572A (en) * | 1989-09-28 | 1991-05-20 | Robert Bosch Gmbh | Drill hammer |
| CN1231532A (en) * | 1997-12-19 | 1999-10-13 | 布莱克和戴克公司 | Reversing rotation mechanism for electric motor |
| JP2000116045A (en) * | 1998-09-29 | 2000-04-21 | Hitachi Ltd | Rotating machine |
| CN201174630Y (en) * | 2008-03-28 | 2008-12-31 | 张健 | Field coil for motor of high insulating strength |
| CN201511355U (en) * | 2009-10-22 | 2010-06-23 | 江苏东成工具有限公司 | Electric tool rotor provided with special heat-radiating fan blades |
| CN201975875U (en) * | 2011-01-27 | 2011-09-14 | 德昌电机(深圳)有限公司 | Electric tool and magnetoelectric machine thereof |
| WO2012043288A1 (en) * | 2010-09-30 | 2012-04-05 | Hitachi Koki Co., Ltd. | Power tool |
| CN202282676U (en) * | 2011-10-31 | 2012-06-20 | 浙江博大实业有限公司 | Special-purpose motor for electric tool |
-
2012
- 2012-12-25 CN CN201210568066.1A patent/CN103894981A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117572A (en) * | 1989-09-28 | 1991-05-20 | Robert Bosch Gmbh | Drill hammer |
| CN1231532A (en) * | 1997-12-19 | 1999-10-13 | 布莱克和戴克公司 | Reversing rotation mechanism for electric motor |
| JP2000116045A (en) * | 1998-09-29 | 2000-04-21 | Hitachi Ltd | Rotating machine |
| CN201174630Y (en) * | 2008-03-28 | 2008-12-31 | 张健 | Field coil for motor of high insulating strength |
| CN201511355U (en) * | 2009-10-22 | 2010-06-23 | 江苏东成工具有限公司 | Electric tool rotor provided with special heat-radiating fan blades |
| WO2012043288A1 (en) * | 2010-09-30 | 2012-04-05 | Hitachi Koki Co., Ltd. | Power tool |
| CN201975875U (en) * | 2011-01-27 | 2011-09-14 | 德昌电机(深圳)有限公司 | Electric tool and magnetoelectric machine thereof |
| CN202282676U (en) * | 2011-10-31 | 2012-06-20 | 浙江博大实业有限公司 | Special-purpose motor for electric tool |
Cited By (3)
| 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 |
| CN107627263B (en) * | 2017-09-30 | 2023-11-10 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN114211233A (en) * | 2021-12-01 | 2022-03-22 | 贵州航天精工制造有限公司 | Bolt thread sleeve mounting method and bolt thread sleeve mounting tool |
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Application publication date: 20140702 |