CN201410659Y - Impact mechanism of power-driven tool - Google Patents
Impact mechanism of power-driven tool Download PDFInfo
- Publication number
- CN201410659Y CN201410659Y CN2009200462908U CN200920046290U CN201410659Y CN 201410659 Y CN201410659 Y CN 201410659Y CN 2009200462908 U CN2009200462908 U CN 2009200462908U CN 200920046290 U CN200920046290 U CN 200920046290U CN 201410659 Y CN201410659 Y CN 201410659Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- axle sleeve
- ratchet
- ratchet wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
The utility model provides an impact mechanism of a power-driven tool, relating to power-driven tools; the impact mechanism of the power-driven tool comprises a body, one main shaft is arranged in thebody, a step which is protruded outwards is arranged at one end on the main shaft, extending outside the body, a second shaft sleeve, a second bearing, a lower ratchet wheel, a first shaft sleeve, anupper ratchet wheel, a fixing sleeve and a first bearing are sheathed on the main shaft in the body; a switching block is sheathed on the main shaft between the body and the step, a boss and a groovewhich are corresponding to each other are arranged between the switching block and the fixing sleeve, a plane bearing is arranged between the switching block and the main shaft, a resetting spring isarranged at the gap between the fixing sleeve and the main shaft, and two ends of the resetting spring re respectively leaned against on the first bearing and the switching block. The impact mechanism has simple and convenient operation, and can realize impact and non-impact drilling effect at the same time. The impact mechanism can be used on the power-driven tools such as an electric drill anda power-driven spanner.
Description
Technical field
The utility model relates to a kind of electric tool, particularly the beater mechanism of percussion drill, electric wrench.
Background technology
In the prior art, the closed percussion bit that a kind of sliding extension is arranged, its patent No. is ZL02107816.5, and this device comprises a drill sleeve, and it has a plurality of connecting holes, a downward projection, a supporting convex, a coupling part and an air pressure supply orifice; A starter, it has a connection bump, this projection by with the extended line of the coupling part assembling of drill sleeve and coupling, a connecting hole that is formed at drill sleeve on connecting through hole, an air pressure supply orifice, an air pressure release aperture, a sliding eye and a plurality of air pressure release aperture; A sliding closure drill bit, it has a guide protrusions, and a pin-and-hole, and the sliding closure drill bit is connected with a guide finger and is fixed in the sliding eye of starter; A plurality of lock pins, lock pin is cooperated with the connecting hole of drill sleeve and the connecting through hole of starter; And a packing ring, after the connecting through hole of the connecting hole of lock pin and drill sleeve and starter was equipped, this packing ring had filled up remaining space.Its weak point is: this apparatus structure complexity, need use compressed air during work, and it is convenient inadequately to use.
The utility model content
The purpose of this utility model provides a kind of electric tool beater mechanism, makes it simple in structure, and is easy to use.
The purpose of this utility model is achieved in that the electric tool beater mechanism, comprise body, be provided with a main shaft in the body, stretch out this external end on the main shaft and be provided with the export-oriented step that protrudes, be nested with second axle sleeve, second bearing, bottom ratchet wheel, first axle sleeve on the body inner main axis, go up ratchet, fixed cover and clutch shaft bearing; Second axle sleeve is fixedlyed connected with body with bottom ratchet wheel, be provided with second bearing between second axle sleeve and the main shaft, the opposite side of second axle sleeve is provided with bottom ratchet wheel, the opposite side of bottom ratchet wheel is provided with first axle sleeve, be provided with ratchet between first axle sleeve and the main shaft, last ratchet is fixed on the main shaft, the forward surface of last ratchet and bottom ratchet wheel is provided with the ratchet of mutual coupling, the opposite side of first axle sleeve is provided with fixed cover, be provided with clutch shaft bearing between fixed cover and the main shaft, also be nested with handoff block on the main shaft between body and the step, be provided with mutual corresponding boss and groove between handoff block and the fixed cover, be provided with plane bearing between handoff block and the main shaft, the gap between fixed cover and the main shaft is provided with back-moving spring, conflicts respectively on clutch shaft bearing and handoff block in the back-moving spring two ends.
During the utility model work, main shaft left end input power, right-hand member connects drill bit, two kinds of duties are arranged between handoff block and the fixed cover, a kind ofly snap in groove on the fixed cover for the boss on the handoff block, at this moment, main shaft has had certain activity space in the axial direction, come from the deboost against the force of the spring of waiting to bore object, promote main shaft, because last ratchet is to be fixed on the main shaft to left movement, last ratchet is simultaneously also to left movement, because it is motionless that bottom ratchet wheel keeps, last ratchet and main shaft fix, and rotate with main shaft, therefore, ratchet between last ratchet and the bottom ratchet wheel can not combine well, and the reaction force that both are in contact with one another the back generation hightails both, and produces vibration, under the effect of subsequently drill bit opposite force, combination once more, separate, thereby produce the higher impact effect of frequency, make boring more smooth; When not needing impact effect, rotate handoff block, the boss on the handoff block breaks away from the groove and the certain angle that staggers on the fixed cover, boss withstands on the end face of fixed cover, at this moment, the inert in the axial direction space of main shaft, the ratchet between last ratchet and the bottom ratchet wheel breaks away from mutually, when holing again, main shaft does not have mobile leeway, and therefore, the ratchet between last ratchet and the bottom ratchet wheel keeps disengaged position, can hole on stable and uniform ground, can not produce impact effect.From the above-mentioned course of work as can be seen, the utility model is simple, convenient; The boring effect that can realize simultaneously impacting and not impact.This device can be used on the electric tools such as electric drill, electric wrench.
Connect for convenience, second bearing is buckled by the C type and is stuck in second axle sleeve.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of fixed cover;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of handoff block;
Fig. 5 is the left view of Fig. 4.
Wherein, 1 main shaft, 101 steps, 2 handoff block, 3 fixed covers, 4 clutch shaft bearings, 5 first axle sleeves, 6 second axle sleeves, 7 bodies, the 8C type is buckled, 9 second bearings, 10 bottom ratchet wheels, ratchet on 11,12 back-moving springs, 13 plane bearings, 14 grooves, 15 boss.
The specific embodiment
As figure, the electric tool beater mechanism comprises body 7, is provided with a main shaft 1 in the body 7, stretches out body 7 outer ends on the main shaft 1 and is provided with the export-oriented step 101 that protrudes.Be nested with second axle sleeve 6, second bearing 9, bottom ratchet wheel 10, first axle sleeve 5 on body 7 inner main axis 1, go up ratchet 11, fixed cover 3 and clutch shaft bearing 4.Second axle sleeve 9 is fixedlyed connected with body 7 with bottom ratchet wheel 10, be provided with second bearing 9 between second axle sleeve 6 and the main shaft 1, second bearing 9 is buckled 8 by the C type and is stuck in second axle sleeve 6, the opposite side of second axle sleeve 6 is provided with bottom ratchet wheel 10, the opposite side of bottom ratchet wheel 10 is provided with first axle sleeve 5, be provided with ratchet 11 between first axle sleeve 5 and the main shaft 1, last ratchet 11 is fixed on the main shaft 1, the forward surface of last ratchet 11 and bottom ratchet wheel 10 is provided with the ratchet of mutual coupling, the opposite side of first axle sleeve 5 is provided with fixed cover 3, be provided with clutch shaft bearing 4 between fixed cover 3 and the main shaft 1, also be nested with handoff block 2 on the main shaft 1 between body 7 and the step 101, be provided with mutual corresponding boss 15 and groove 14 between handoff block 2 and the fixed cover 3, when the boss on the handoff block 2 15 snapped in groove 14 on the fixed cover 3, the ratchet on the forward surface of last ratchet 11 and bottom ratchet wheel 10 mutually combined just.Be provided with plane bearing 13 between handoff block 2 and the main shaft 1, the gap between fixed cover 3 and the main shaft 1 is provided with back-moving spring 12, conflicts respectively on clutch shaft bearing 4 and handoff block 2 in back-moving spring 12 two ends.
During its work, main shaft 1 left end input power, right-hand member connects drill bit, two kinds of duties are arranged between handoff block 2 and the fixed cover 3, a kind ofly snap in groove 14 on the fixed cover 3 for the boss 15 on the handoff block 2, at this moment, main shaft 1 has had certain activity space in the axial direction, come from the deboost against the force of the spring of waiting to bore object, promote main shaft 1, because last ratchet 11 is to be fixed on the main shaft 1 to left movement, last 11 whiles of ratchet are also to left movement, because bottom ratchet wheel 10 keeps motionless, last ratchet 11 fixes with main shaft 1, rotates with main shaft 1, therefore, ratchet between last ratchet 11 and the bottom ratchet wheel 10 can not combine well, and the reaction force that both are in contact with one another the back generation hightails both, and produces vibration, under the effect of subsequently drill bit opposite force, combination once more, separate, thereby produce the higher impact effect of frequency, make boring more smooth; When not needing impact effect, rotate handoff block 2, the groove 14 and the certain angle that staggers that the boss 15 on the handoff block 2 breaks away from the fixed cover 3, boss 14 withstands on the end face of fixed cover 3, at this moment, the inert in the axial direction space of main shaft 1, the ratchet between last ratchet 11 and the bottom ratchet wheel 10 breaks away from mutually, when holing again, main shaft does not have mobile leeway, and therefore, the ratchet between last ratchet 11 and the bottom ratchet wheel 10 keeps disengaged position, can hole on stable and uniform ground, can not produce impact effect.
Claims (2)
1, electric tool beater mechanism, it is characterized in that: comprise body, be provided with a main shaft in the body, stretch out this external end on the main shaft and be provided with the export-oriented step that protrudes, be nested with second axle sleeve, second bearing, bottom ratchet wheel, first axle sleeve on the body inner main axis, go up ratchet, fixed cover and clutch shaft bearing; Second axle sleeve is fixedlyed connected with body with bottom ratchet wheel, be provided with second bearing between second axle sleeve and the main shaft, the opposite side of second axle sleeve is provided with bottom ratchet wheel, the opposite side of bottom ratchet wheel is provided with first axle sleeve, be provided with ratchet between first axle sleeve and the main shaft, last ratchet is fixed on the main shaft, the forward surface of last ratchet and bottom ratchet wheel is provided with the ratchet of mutual coupling, the opposite side of first axle sleeve is provided with fixed cover, be provided with clutch shaft bearing between fixed cover and the main shaft, also be nested with handoff block on the main shaft between body and the described step, be provided with mutual corresponding boss and groove between handoff block and the fixed cover, be provided with plane bearing between handoff block and the main shaft, the gap between fixed cover and the main shaft is provided with back-moving spring, conflicts respectively on clutch shaft bearing and handoff block in the back-moving spring two ends.
2, electric tool beater mechanism according to claim 1 is characterized in that: described second bearing is buckled by the C type and is stuck in second axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200462908U CN201410659Y (en) | 2009-06-03 | 2009-06-03 | Impact mechanism of power-driven tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200462908U CN201410659Y (en) | 2009-06-03 | 2009-06-03 | Impact mechanism of power-driven tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201410659Y true CN201410659Y (en) | 2010-02-24 |
Family
ID=41712551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200462908U Expired - Fee Related CN201410659Y (en) | 2009-06-03 | 2009-06-03 | Impact mechanism of power-driven tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201410659Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200429A (en) * | 2019-06-18 | 2019-09-06 | 宝鸡文理学院 | A kind of mathematical education platform |
-
2009
- 2009-06-03 CN CN2009200462908U patent/CN201410659Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200429A (en) * | 2019-06-18 | 2019-09-06 | 宝鸡文理学院 | A kind of mathematical education platform |
| CN110200429B (en) * | 2019-06-18 | 2021-01-26 | 宝鸡文理学院 | Mathematics teaching platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100224 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |