CN100455414C - Electric hammer with magnetic impacting mechanism - Google Patents
Electric hammer with magnetic impacting mechanism Download PDFInfo
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- CN100455414C CN100455414C CNB2007100702485A CN200710070248A CN100455414C CN 100455414 C CN100455414 C CN 100455414C CN B2007100702485 A CNB2007100702485 A CN B2007100702485A CN 200710070248 A CN200710070248 A CN 200710070248A CN 100455414 C CN100455414 C CN 100455414C
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- Prior art keywords
- disc
- driving
- driving shaft
- annular
- multidiameter
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000003116 impacting effect Effects 0.000 title claims description 11
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000009527 percussion Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention discloses one kind of electric hammer with one magnetic percussion mechanism. The electric hammer includes one casing, one motion transferring mechanism, one magnetic percussion mechanism and one drill chuck. The magnetic percussion mechanism has one fixed sleeve inside the casing, one driving shaft inside the fixed sleeve, one percussion hammer mounted onto one end of the driving shaft, one driving disc with annular notch holding permanent magnet, one rotating disc connected to the rotating shaft and with also annular notch holding permanent magnet. These two permanent magnets in rotating produce repulsion force and attraction force periodically to make the driving disc move back and forth on the rotating shaft and the percussion hammer produce percussion. These two permanent magnets without mutual contact result in less vibration and noise.
Description
Technical field
The present invention relates to hand held electric tool, especially relate to a kind of electric hammer with magnetic impacting mechanism.
Background technology
For hand toolroom machine with impact driver, as instruments such as electric hammers, the working method of traditional this type electric hammer is as follows, rotatablely moving of motor arrives turnbarrel through the gear drive that is fixed on the axle, one end of turnbarrel is equipped with drill chuck, thereby drive the drill bit rotation, in addition, rotatablely moving of motor arrives crank mechanism by the gear drive that is fixed on the axle, rotatablely moving of motor is transformed into the reciprocating motion of connecting rod, promotes piston compressed air and produce impulsive force, and then make jump bit, drift moves back and forth, impact drill bit, finally realize the hammer drill function of electric hammer.This structure of utilizing reciprocating motion of the pistons to produce impulsive force is had relatively high expectations to the sealing property of plunger shaft, and manufacturing cost is bigger, and can cause heating and energy loss because of friction, and vibration and noise are also very big simultaneously.
In recent years, because the permanent-magnet material of a new generation is in the raising of performances such as high remanent magnetism, high-coercive force, high energy product and the reduction of cost, adopt the machine components and the product of permanent magnet more and more, magnetic drives has lot of advantages, does not have friction and wear problem, can high-speed motion, vibration and noise are less, and its potential magnetic property is high, can pick up the weight that is equivalent to 640 times of own wts, therefore, permanent magnet is used widely.
Summary of the invention
The object of the present invention is to provide a kind of electric hammer with magnetic impacting mechanism, this beater mechanism utilizes the relative rotation of two pairs of two-stage permanent magnets and forms attraction and repulsive force, impacts jump bit, drives the reciprocal ballistic motion of cutter.
The technical scheme that technical solution problem of the present invention is adopted is:
Comprise housing, by the movement transferring that motor, gear wheel, idler gear, pinion and driven wheel are formed, beater mechanism and drill chuck.Described beater mechanism is a magnetic impacting mechanism, its fixed muffle is a multidiameter, be fixed in the housing, driving shaft is housed in the multidiameter, be positioned at the coaxial jump bit that is equipped with of an end of the driving shaft of fixed muffle small end multidiameter, driving shaft axially has gathering sill, fixed muffle small end multidiameter radially have a hole, guide finger is installed in the radial hole of fixed muffle small end multidiameter and inserts in the gathering sill of driving shaft, be positioned at the big end ladder of fixed muffle axis hole driving-disc and rolling disc are housed, the other end of driving shaft is connected with driving-disc, have annular groove on the driving-disc, first annular permanent magnnet is housed in the groove, one end of rolling disc is connected with turning cylinder, have annular groove on the rolling disc relative with driving-disc first annular permanent magnnet, second annular permanent magnnet is housed in the annular groove on the described rolling disc, mutual rotation between two annular permanent magnnets produces repulsive force and attraction, driving-disc is moved forward and backward with respect to turning cylinder, driving shaft drives jump bit and moves as axial impact, and the other end of turning cylinder is connected with the gear wheel of movement transferring.
Described two annular permanent magnnets are the two poles of the earth permanent magnet, are respectively two semi-round ring shapes and form.
Described two annular permanent magnnets are multipolar permanent magnet, are respectively S, N utmost point intersection annular composition.
The present invention compares the beneficial effect that has with background technology:
Magnetic impacting mechanism is compared with traditional piston impact mechanism, because impulsive force is to produce under unsealed state, therefore, this mechanism does not have special seal request, has simple in structure; Owing to be not in contact with one another between two annular permanent magnnets, therefore, can significantly reduce vibration and noise.
Description of drawings
Fig. 1 is an impact structure principle schematic of the present invention.
Fig. 2 is an A-A view of the present invention.
Fig. 3 is the percussion drill principle schematic that impact structure of the present invention is housed.
Among the figure: 1, fixed muffle, 2, jump bit, 3, driving shaft, 4, guide finger, 5, driving-disc, 6, magnet, 7, magnet, 8 rolling discs, 9, turning cylinder, 10, gear wheel, 11, bearing, 12, motor, 13, idler gear, 14, jackshaft, 15, pinion, 16, driven wheel, 17, support set, 18, housing 19, turnbarrel, 20, drill chuck, 21, screw.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes housing 18, by the movement transferring that motor 12, gear wheel 10, idler gear 13, pinion 15 and driven wheel 16 are formed, beater mechanism and drill chuck 20.Described beater mechanism is a magnetic impacting mechanism, its fixed muffle 1 is a multidiameter, be fixed in the housing 18, can not move axially and rotate, driving shaft 3 is housed in the multidiameter, be positioned at the coaxial jump bit 2 that is equipped with of an end of the driving shaft 3 of fixed muffle 1 small end multidiameter, driving shaft 3 axially has gathering sill, fixed muffle 1 small end multidiameter radially have a hole, in guide finger 4 installing holes and insert in the gathering sill of driving shaft 3, be positioned at fixed muffle 1 big end ladder axis hole driving-disc 5 and rolling disc 8 are housed, the other end of driving shaft 3 is connected with driving-disc 5, have annular groove on the driving-disc 5, first annular permanent magnnet 6 is housed in the groove, annular permanent magnnet 6 usefulness screws 21 are fixed on the driving-disc 5, one end of rolling disc 8 is connected with turning cylinder 9, have annular groove on the rolling disc 8 relative with driving-disc 5 first annular permanent magnnets 6, second annular permanent magnnet 7 is housed in the groove, annular permanent magnnet 7 usefulness screws 21 are fixed on the rolling disc 8, two annular permanent magnnets 6,7 mutual rotation produces repulsive force and attraction, driving-disc 5 is moved forward and backward with respect to turning cylinder 9, driving shaft 3 compressed air make jump bit 2 move as axial impact, and the other end of turning cylinder 9 is connected with the gear wheel of movement transferring 10.
As shown in Figure 2, described two annular permanent magnnets 6,7 are the two poles of the earth permanent magnet, are respectively two semi-round ring shapes and form.
Described two annular permanent magnnets 6,7 are multipolar permanent magnet, are respectively S, N utmost point intersection annular composition.
Operation principle of the present invention is as follows:
As shown in Figure 3, in the bearing 11 of electric hammer motor 12 is housed, when motor 12 rotations, utilize the idler gear 13 on its armature shaft front end gear drive jackshaft 14, idler gear 13 and pinion 15 are fixed on the jackshaft 14, with jackshaft 14 rotations, therefore, rotatablely move and to be delivered on the driven wheel 16 by pinion 15, driven wheel 16 is fixed on the turnbarrel 19, turnbarrel 19, can not move axially on support set 17 by bearings, but 1 rotation of relative fixed sleeve, its front end is equipped with drill chuck 20, when 19 rotations of driven wheel 16 driven rotary sleeves, can drive drill chuck 20 rotations, thereby drive drill bit (not drawing among the figure) rotation that is inserted in wherein.
Simultaneously, when 13 rotations of center tooth wheel, drive gear wheel 10 rotations, gear wheel 10 is fixed on the rotating shaft 9, and the other end of rotating shaft 9 is rolling disc 8 fixedly, as shown in Figure 1, magnet 7 is housed in the rolling disc 8, as shown in Figure 2, when rotating shaft 9 rotations, drive rolling disc 8 rotations, make the magnet 7 that is installed in the rolling disc 8 rotate.Because magnet 7 is the two poles of the earth permanent magnets, in the driving-disc 5 relative magnet 6 is housed with rolling disc 8, magnet 6 is the two poles of the earth permanent magnets, driving-disc 5 is fixed on the driving shaft 3, therefore, when two magnet, 6,7 polarity are identical, repulsive force can be produced, when two magnet, 6,7 polarity are opposite, attraction can be produced, owing in the gathering sill of driving shaft 3 guide finger 7 is housed, make two magnet 6,7 can not combine, thereby promote driving shaft 3 forward, impact jump bit 2 because of magnetic force is excessive, and then realize the reciprocating motion of drill bit (not shown), finally realize the hammer drill function of electric hammer.Bonding when the gathering sill of driving shaft 3 can avoid magnet 6 and magnet 7 to attract each other and the impact of 5 pairs of fixed muffle 1 end faces of driving-disc when repelling.
The invention that is used for explaining of the above-mentioned specific embodiment, rather than limit the invention, in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (3)
1, a kind of electric hammer with magnetic impacting mechanism, comprise housing (18), by motor (12), gear wheel (10), idler gear (13), the movement transferring that pinion (15) and driven wheel (16) are formed, beater mechanism and drill chuck (20), it is characterized in that: described beater mechanism is a magnetic impacting mechanism, its fixed muffle (1) is a multidiameter, be fixed in the housing (18), driving shaft (3) is housed in the multidiameter, be positioned at the coaxial jump bit (2) that is equipped with of an end of the driving shaft (3) of fixed muffle (1) small end multidiameter, driving shaft (3) axially has gathering sill, fixed muffle (1) small end multidiameter radially have a hole, guide finger (4) is installed in the radial hole of fixed muffle (1) small end multidiameter and inserts in the gathering sill of driving shaft (3), being positioned at fixed muffle (1) holds the ladder axis hole that driving-disc (5) and rolling disc (8) are housed greatly, the other end of driving shaft (3) is connected with driving-disc (5), driving-disc has annular groove on (5), first annular permanent magnnet (6) is housed in the groove, one end of rolling disc (8) is connected with turning cylinder (9), have annular groove on the rolling disc (8) relative with driving-disc (5) first annular permanent magnnets (6), second annular permanent magnnet (7) is housed in the annular groove on the described rolling disc (8), two annular permanent magnnets (6,7) the mutual rotation between produces repulsive force and attraction, driving-disc (5) is moved forward and backward with respect to turning cylinder (9), driving shaft (3) drives jump bit (2) and moves as axial impact, and the other end of turning cylinder (9) is connected with the gear wheel (10) of movement transferring.
2, a kind of electric hammer with magnetic impacting mechanism according to claim 1 is characterized in that: described two annular permanent magnnets (6,7) are the two poles of the earth permanent magnet, are respectively two semi-round ring shapes and form.
3, a kind of electric hammer with magnetic impacting mechanism according to claim 1 is characterized in that: described two annular permanent magnnets (6,7) are multipolar permanent magnet, are respectively S, N utmost point intersection annular composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100702485A CN100455414C (en) | 2007-07-27 | 2007-07-27 | Electric hammer with magnetic impacting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100702485A CN100455414C (en) | 2007-07-27 | 2007-07-27 | Electric hammer with magnetic impacting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101100056A CN101100056A (en) | 2008-01-09 |
| CN100455414C true CN100455414C (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100702485A Expired - Fee Related CN100455414C (en) | 2007-07-27 | 2007-07-27 | Electric hammer with magnetic impacting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455414C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789728A (en) * | 2009-10-14 | 2010-07-28 | 姚福来 | Device for generating vibration and hammering by utilizing multidirectional rotary magnets |
| WO2011136663A1 (en) * | 2010-04-29 | 2011-11-03 | Flexidrill Limited | A vibrational or a downhole apparatus with a magnetically coupled drive |
| CN103692016A (en) * | 2012-09-27 | 2014-04-02 | 浙江海洋学院 | Tensioning device of underwater diamond wire saw |
| CN104999011A (en) * | 2015-07-24 | 2015-10-28 | 苏州云舒新材料科技有限公司 | Foot-operated metal hammering device |
| CN108214407B (en) * | 2018-01-10 | 2020-12-04 | 重庆交通大学 | Induction heating magnetic impact hammer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095076U (en) * | 1991-05-17 | 1992-02-05 | 薛逢春 | Electromagnetic percussive chisel |
| US5497555A (en) * | 1994-12-19 | 1996-03-12 | Averbukh; Moshe | Electromagnetic percussion device |
| CN1255416A (en) * | 1998-12-03 | 2000-06-07 | 希尔蒂股份公司 | Manually-operated drill and/or chiselling machine |
| CN1324712A (en) * | 2000-05-23 | 2001-12-05 | 希尔蒂股份公司 | Hand-operation tool with electro magnetic impact machine |
| JP2004291138A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Works Ltd | Magnetic impact tool |
| CN1796054A (en) * | 2004-12-28 | 2006-07-05 | 日立工机株式会社 | Pulse torque generator and power tool having the same |
| CN201082539Y (en) * | 2007-07-27 | 2008-07-09 | 浙江大学 | Electric hammer with magnetic force impact mechanism |
-
2007
- 2007-07-27 CN CNB2007100702485A patent/CN100455414C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095076U (en) * | 1991-05-17 | 1992-02-05 | 薛逢春 | Electromagnetic percussive chisel |
| US5497555A (en) * | 1994-12-19 | 1996-03-12 | Averbukh; Moshe | Electromagnetic percussion device |
| CN1255416A (en) * | 1998-12-03 | 2000-06-07 | 希尔蒂股份公司 | Manually-operated drill and/or chiselling machine |
| CN1324712A (en) * | 2000-05-23 | 2001-12-05 | 希尔蒂股份公司 | Hand-operation tool with electro magnetic impact machine |
| JP2004291138A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Works Ltd | Magnetic impact tool |
| CN1796054A (en) * | 2004-12-28 | 2006-07-05 | 日立工机株式会社 | Pulse torque generator and power tool having the same |
| CN201082539Y (en) * | 2007-07-27 | 2008-07-09 | 浙江大学 | Electric hammer with magnetic force impact mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101100056A (en) | 2008-01-09 |
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Granted publication date: 20090128 Termination date: 20170727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |