CN100475453C - A percussion drill possessing magnetic impact mechanism - Google Patents
A percussion drill possessing magnetic impact mechanism Download PDFInfo
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- CN100475453C CN100475453C CNB2007100701105A CN200710070110A CN100475453C CN 100475453 C CN100475453 C CN 100475453C CN B2007100701105 A CNB2007100701105 A CN B2007100701105A CN 200710070110 A CN200710070110 A CN 200710070110A CN 100475453 C CN100475453 C CN 100475453C
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- driving
- disc
- bearing
- driving shaft
- taper
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- Drilling And Boring (AREA)
Abstract
The invention discloses a cable drilling tool with magnetic force percussion mechanism. It includes case, moving delivering structure, magnetic impact structure, and drill chuck. The small end surface axis using bearing supports at the front of case and extrudes out to install drill chuck. The large end surface has circle slot, where has circle permanent magnet. The driving axis is set in supporting base through bear. One end of driving shaft connects to center hole of driving disc through bond. A circle slot is set on the surface of supporting base where permanent magnet is installed. The permanent magnets would cause repulsive force and attractive force while rotating to make the driving disc move back and forth relative to driving shaft. The other end of driving shaft is connected to driving gear of driving structure. There are no energy consumption and no rigid impact in the invention. The useful life would be prolonged, and the lubricant will be saved. It also has no dust and noise during moving process.
Description
Technical field
The present invention relates to hand held electric tool, especially relate to a kind of percussion drill with magnetic impacting mechanism.
Background technology
For hand toolroom machine with impact driver, as jump bit, the instrument of percussion drill etc., traditional this type percussion drill, rotatablely moving of motor arrives main shaft through the gear transmission mechanism that is fixed on the axle, one end of main shaft is equipped with drill chuck, the other end is provided with rotatable ratchet, end face has ratchet, rotatable ratchet and main shaft rotate simultaneously, and can move axially with main shaft, on the housing of percussion drill fixed ratchet wheel are installed, fixed ratchet wheel can not rotate and move, be oppositely arranged with the rotation ratchet, and on the rotation ratchet opposing end faces ratchet arranged, when motor rotates, by gear transmission mechanism, main axis rotation drives the rotation ratchet rotation be fixed on the axle simultaneously, by with the ratchet engagement of fixed ratchet wheel end face, the rotation ratchet moves back and forth, thereby the drive spindle reciprocating motion is final, drives drill bit material is impacted.This structure of utilizing end surface shape to mesh and producing impulsive force can cause heating and because of the friction energy loss, vibration and noise are all 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 percussion drill with magnetic impacting mechanism, this percussion drill utilizes the relative rotation of two pairs of the two poles of the earth permanent magnets and forms attraction and repulsive force, produces impulsive force, drives cutter and moves back and forth.
The technical solution adopted for the present invention to solve the technical problems is: comprise housing, and by the movement transferring that motor, driven wheel, motor gear, idler gear and intermediate speed pinion are formed, beater mechanism and drill chuck.Described beater mechanism is a magnetic impacting mechanism, on the small end over glaze of its taper driving-disc rubber washer is housed, the small end over glaze is supported on the housing front end with clutch shaft bearing, and stretch out outside the housing, drill chuck is installed, the large end face of taper driving-disc has annular groove, first annular permanent magnnet is housed in the groove, bearing is contained in the housing, driving shaft passes through second bearings in bearing, rotate relative to bearing, driving shaft one end passes bearing and taper driving-disc centre bore key connecting, drive the taper driving-disc and rotate, the bearing end face relative with the large end face of taper driving-disc has annular groove, and second annular permanent magnnet is housed in the groove, mutual rotation between two annular permanent magnnets produces repulsive force and suction, taper driving-disc relative drive shaft is moved forward and backward, on the driving shaft relative with the large end face of taper driving-disc back-up ring is housed, the driving shaft other end is connected with the driven 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 joining key of taper driving-disc and driving shaft is a cylindrical keys.
The present invention compares the beneficial effect that has with background technology:
Magnetic impact bores with traditional mechanical shock mechanism and compares, because impulsive force is to produce under non-contacting state, owing to be not in contact with one another between permanent magnet, therefore, this structure does not have part heating and wear problem, greatly reduces vibration and noise.Therefore, this mechanism does not have fricative energy loss, can not produce rigid impact between the part, has the part long service life, saves the advantage that can not produce dust and noise in lubricating oil, the motion process.
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 a B-B view of the present invention.
Fig. 4 is the percussion drill principle schematic that impact structure of the present invention is housed.
Among the figure: 1, bearing, 2, housing, 3, key, 4, magnet, 5, magnet, 6, bearing, 7, driving shaft, 8, bearing, 9, back-up ring, 10, the taper driving-disc, 11, driven wheel, 12, motor gear, 13, motor, 14, bearing, 15, jackshaft, 16, idler gear, 17, intermediate speed pinion, 18, bearing, 19, drill bit, 20, drill chuck, 21, screw, 22, rubber washer.
The specific embodiment
As Fig. 1, shown in Figure 4, the present invention includes housing 2, by the movement transferring that motor 13, driven wheel 11, motor gear 12, idler gear 16 and intermediate speed pinion 17 are formed, beater mechanism and drill chuck 20.Described beater mechanism is a magnetic impacting mechanism, on the small end over glaze of its taper driving-disc 10 rubber washer 22 is housed, when reducing taper driving-disc 10 and moving axially to the impact of housing, the small end over glaze is supported on housing 2 front ends with clutch shaft bearing 1, and stretch out outside the housing 2, drill chuck 20 is installed, the large end face of taper driving-disc 10 has annular groove, first annular permanent magnnet 4 is housed in the groove, bearing 6 is contained in the housing 2, bearing 6 is threaded with housing 2, driving shaft 7 is supported in the bearing 6 by second bearing 8, rotates relative to bearing 6, and driving shaft 7 one ends pass bearing 6 and connect with key 3 with taper driving-disc 10 centre bores, driving taper driving-disc 10 rotates, bearing 6 end faces relative with the large end face of taper driving-disc 10 have annular groove, and 5, two pairs of permanent magnets 4 of second annular permanent magnnet are housed in the groove, 5 can relatively rotate, first permanent magnet, 4 usefulness screws 21 are fixed on the taper driving-disc 10, and second permanent magnet, 5 usefulness screws 21 are fixed on the bearing 6.The mutual rotation that two annular permanent magnnets are 4,5 produces repulsive force and suction, taper driving-disc 10 relative drive shafts 7 are moved forward and backward, on the driving shaft 7 relative with the large end face of taper driving-disc 10 back-up ring 9 is housed, driving shaft 7 other ends are connected with the driven wheel 11 of movement transferring.
As Fig. 2, shown in Figure 3, described two annular permanent magnnets 4,5 are the two poles of the earth permanent magnet, are respectively two semi-round ring shapes and form.
Described two annular permanent magnnets 4,5 are multipolar permanent magnet, are respectively S, N utmost point intersection annular composition.
As shown in Figure 3, taper driving-disc 10 is a cylindrical keys with driving shaft 7 joining keys 3.
Operation principle of the present invention is as follows:
As shown in Figure 4, in the housing 2 of percussion drill motor 13 is housed, when motor 13 rotations, motor gear 12 on the armature shaft of motor 13 and 16 engagements of the idler gear on the jackshaft 15, on the bearing 14 of jackshaft 15 two end supports in housing 2, the bearing 18, intermediate speed pinion 17 on the jackshaft 15 and 11 engagements of the driven wheel on the driving shaft 7, thus will rotatablely move is delivered on the driving shaft 7.
As shown in Figure 1, when driving shaft 7 rotations, connect, drive 10 rotations of taper driving-disc, thereby make drill chuck 20 and drill bit 19 rotations that are installed in taper driving-disc 10 1 ends by key 3.In addition, when 10 rotations of taper driving-disc, the two poles of the earth permanent magnet 4 that is contained in the annular groove rotates simultaneously, owing on the bearing 6 relative the two poles of the earth permanent magnet 5 is housed also with it, therefore, when two magnet 4, when 5 polarity are identical, can produce repulsive force, when two magnet 4, when 5 polarity are opposite, can produce attraction, owing on the driving shaft 7 back-up ring 9 is housed, make two magnet 4,5 can not combine because of magnetic force is excessive, thereby, make driving-disc 10 on driving shaft 7, move back and forth, drill chuck 20 and drill bit 19 that drive is installed in taper driving-disc 10 1 ends move back and forth, and finally realize the hammer drill function of percussion drill.
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 (4)
1, a kind of percussion drill with magnetic impacting mechanism, comprise housing (2), by motor (13), driven wheel (11), motor gear (12), the movement transferring that idler gear (16) and intermediate speed pinion (17) are formed, beater mechanism and drill chuck (20), it is characterized in that: described beater mechanism is a magnetic impacting mechanism, rubber washer (22) is housed on the small end over glaze of its taper driving-disc (10), the small end over glaze is supported on housing (2) front end with clutch shaft bearing (1), and stretch out outside the housing (2), drill chuck (20) is installed, the large end face of taper driving-disc (10) has annular groove, first annular permanent magnnet (4) is housed in the groove, bearing (6) is contained in the housing (2), driving shaft (7) is supported in the bearing (6) by second bearing (8), rotate relative to bearing (6), driving shaft (7) one ends pass bearing (6) and connect with key (3) with taper driving-disc (10) centre bore, driving taper driving-disc (10) rotates, bearing (6) end face relative with the large end face of taper driving-disc (10) has annular groove, second annular permanent magnnet (5) is housed in the groove, two annular permanent magnnets (4,5) the mutual rotation between produces repulsive force and suction, taper driving-disc (10) relative drive shaft (7) is moved forward and backward, on the driving shaft (7) relative with the large end face of taper driving-disc (10) back-up ring (9) is housed, driving shaft (7) other end is connected with the driven wheel (11) of movement transferring.
2, a kind of percussion drill with magnetic impacting mechanism according to claim 1 is characterized in that: described two annular permanent magnnets (4,5) are the two poles of the earth permanent magnet, are respectively two semi-round ring shapes and form.
3, a kind of percussion drill with magnetic impacting mechanism according to claim 1 is characterized in that: described two annular permanent magnnets (4,5) are multipolar permanent magnet, are respectively S, N utmost point intersection annular composition.
4, a kind of percussion drill with magnetic impacting mechanism according to claim 1 is characterized in that: taper driving-disc (10) is a cylindrical keys with the joining key of driving shaft (7) (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100701105A CN100475453C (en) | 2007-07-20 | 2007-07-20 | A percussion drill possessing magnetic impact mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100701105A CN100475453C (en) | 2007-07-20 | 2007-07-20 | A percussion drill possessing magnetic impact mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092028A CN101092028A (en) | 2007-12-26 |
| CN100475453C true CN100475453C (en) | 2009-04-08 |
Family
ID=38990558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100701105A Expired - Fee Related CN100475453C (en) | 2007-07-20 | 2007-07-20 | A percussion drill possessing magnetic impact mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100475453C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692017A (en) * | 2012-09-27 | 2014-04-02 | 浙江海洋学院 | Tensioning device of underwater diamond wire sawing machine |
| CN109209369B (en) * | 2018-11-23 | 2020-06-02 | 青岛理工大学（临沂）管理委员会办公室 | Rock drilling breaker for mine hole |
| CN210616409U (en) * | 2018-12-28 | 2020-05-26 | 南京德朔实业有限公司 | Electric hammer |
| CN112720367B (en) * | 2019-10-29 | 2024-04-30 | 苏州宝时得电动工具有限公司 | Hand-held tool |
| CN112356107A (en) * | 2020-10-14 | 2021-02-12 | 洪文琪 | Slicing device for traditional Chinese medicine decoction piece production and using method thereof |
-
2007
- 2007-07-20 CN CNB2007100701105A patent/CN100475453C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101092028A (en) | 2007-12-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20170720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |