CN1340407A - Single-hammer brake for electric hammer - Google Patents
Single-hammer brake for electric hammer Download PDFInfo
- Publication number
- CN1340407A CN1340407A CN 00112503 CN00112503A CN1340407A CN 1340407 A CN1340407 A CN 1340407A CN 00112503 CN00112503 CN 00112503 CN 00112503 A CN00112503 A CN 00112503A CN 1340407 A CN1340407 A CN 1340407A
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- China
- Prior art keywords
- hammer
- driven gear
- casing
- sliding sleeve
- latch
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- 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.)
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- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
A single-hammer brake for electric hammer is composed of casing, main axle, slide sleeve and main axle, driven gear on the slide sleeve, knob on the said casing and opposite to the said driven gear, driving pin fixed to knob and behind the said driven gear, stop plate on the casing and correspondent with a square notch on the front end of slide sleeve, stop pin on the stop plate, and leaf spring to press the stop pin. Its advantage is high braking effect.
Description
The present invention relates to a kind of electric hammer list hammer stop mechanism.Specifically, be a kind of single-hammer brake for electric hammer with hammer, brill and three kinds of functions of while hammer drill.
At present, the multifunctional electric hammer of selling on the market mostly is equipped with function-changing device.Making it from the boring function or when not only having bored but also having hammered into shape function and being transformed into single hammer function, is that the main shaft that causes when preventing single hammer operation rotates, and guarantees to hammer into shape bore bit portion and be in suitable angle, just correspondingly stop device need be set.Stop device commonly used is at the front end of driven gear one check plate to be installed, and has on the check plate and the identical teeth groove of profile of tooth on the driven gear.When need use single hammer function, stir the axle tooth that driven gear makes its reach and breaks away from the power transmission shaft front end, the tooth on the driven gear is meshed with teeth groove on the check plate, main shaft can not be rotated, realize single function of hammering into shape.Because this function conversion is to carry out under stopped status, not corresponding situation appears in teeth groove on the check plate and the tooth regular meeting on the driven gear.Meet this situation, after start makes the two correspondence again, just can finish stop.Therefore, often need repeatedly start shooting, shut down, could realize stop.Not only stopping effect is poor, and it is also cumbersome to operate.
The object of the invention is to provide the single-hammer brake for electric hammer that a kind of stopping effect is good, be convenient to operate.
Single-hammer brake for electric hammer of the present invention comprises casing, and main shaft is arranged in the casing, and sliding sleeve is arranged on the main shaft, and driven gear is arranged on the sliding sleeve.On the casing knob is installed accordingly with driven gear, the inboard of this knob is fixed with stirs pin, it is said that to stir its design feature of rear side that pin is in driven gear be that the front end of sliding sleeve has rectangular recess, be fixed with check plate on the casing medial surface accordingly with this rectangular recess, latch that can forward and backward activity arranged on the check plate and be used to withstand the spring leaf of latch.
Because sliding sleeve front end of the present invention is processed with rectangular recess, and be fixed with check plate on the corresponding casing medial surface of this rectangular recess, have on the check plate can forward and backward activity latch.When need make electric hammer from the boring function or when simultaneously the hammer drill function is converted to single hammer function, as long as the turn knob also drives the pin of stirring of knob inboard, make sliding sleeve move forward to check plate on latch offset, can make latch on the check plate enter the groove of sliding sleeve front end.Even when driven gear drives latch on sliding sleeve reach, the check plate and fails to enter the rectangular recess of sliding sleeve front end, also can latch be slipped in the rectangular recess, thereby realize stop success by the trace vibrations of single hammer operation start moment main shaft.Be convenient to operation, stopping effect is good.
Below in conjunction with accompanying drawing the present invention is described in further details:
Fig. 1 is a single-hammer brake for electric hammer cross-sectional schematic of the present invention:
Fig. 2 is latch and the sliding sleeve front end groove fit view among Fig. 1.
As shown in Figure 1 and Figure 2, single-hammer brake for electric hammer of the present invention comprises casing 9, and main shaft 10 is installed in this casing.The front end of main shaft 10 matches with the front end of casing 9, and be inserted in the support holes of holder 11 front ends main shaft 10 rear ends, and main shaft 10 can be rotated around axis in this support holes.Power transmission shaft 12 is arranged under the main shaft 10, and this power transmission shaft is parallel with main shaft 10, is processed into tooth axle 13 on its front end cylindrical, and the rear end links to each other with the output shaft of motor.Be with sliding sleeve 15 in the middle of the main shaft 10, be with driven gear 14 on the sliding sleeve.Said driven gear 14 is meshed with the tooth axle 13 of power transmission shaft 12 front ends.All have axial keyway on the interior circle of sliding sleeve 15 and on the cylindrical of main shaft 10, make sliding sleeve 15 on main shaft 10, can carry out axially forward and backward moving by means of key 3.Driven gear 14 front ends are processed with protruding, recessed alternate boss and groove, and the corresponding position of sliding sleeve 15 also is processed with alternate groove of concave, convex and boss correspondingly, by means of these boss and groove sliding sleeve 15 and driven gear 14 are tightened together.Steel ring 8, baffle ring 7 and spring 6 in order to block driven gear 14 are arranged on the rear end cylindrical of sliding sleeve 15.The front end end of sliding sleeve 15 processes several rectangular recess equally spacedly.Accordingly, one jiao of casing 9 medial surface under main shaft 10 are fixed a check plate 17 by means of screw 16, have two through holes on the check plate 17, and the position of two through hole is all on the pairing circular arc of sliding sleeve 15 front ends.All adorn a latch 18 in the said two through hole, this latch inserts from the front of check plate 17, its with the through hole of check plate 17 between be activity and cooperate.A spring leaf 2 is fixed with rivet 1 in the front of check plate 17, and this spring leaf withstands the rear end round end of latch 18.The diameter of latch 18 wherein is less than the recess width of driven gear 14 front ends.One knob 4 is installed on the casing 9, and the position of this knob is corresponding with driven gear 14.Knob 4 inboards are fixed one and are stirred pin 5, and this stirs the rear side that pin is in driven gear 14.
When need make electric hammer from boring function or same hour hammer, bore function when being converted to single hammer function, as long as turn knob 4 and drive knob 4 inboards stir pin 5, make sliding sleeve 15 move forward to check plate 17 on latch 18 offset, can make latch 18 on the check plate 17 enter the groove of sliding sleeve 15 front ends.Even when the latch 18 on 15 reaches of driven gear 14 drive sliding sleeves, check plate 17 fails to enter the rectangular recess of sliding sleeve 15 front ends, also can shake by the trace of single hammer operation start moment main shaft 10, latch 18 is slipped in the rectangular recess.Only need once, can finish stop.
Claims (1)
1. single-hammer brake for electric hammer comprises casing (9), and main shaft (10) is arranged in the casing, and sliding sleeve (15) is arranged on the main shaft, and driven gear (14) is arranged on the sliding sleeve; On the casing (9) knob (4) is installed accordingly with driven gear (14), the inboard of this knob is fixed with stirs pin (5), saidly stirs the rear side that pin is in driven gear (14); The front end that it is characterized in that sliding sleeve (15) has rectangular recess, is fixed with check plate (17) on casing (9) medial surface accordingly with this rectangular recess, latch (18) that can forward and backward activity is arranged on the check plate and be used to withstand the spring leaf (2) of latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00112503 CN1340407A (en) | 2000-09-01 | 2000-09-01 | Single-hammer brake for electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00112503 CN1340407A (en) | 2000-09-01 | 2000-09-01 | Single-hammer brake for electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1340407A true CN1340407A (en) | 2002-03-20 |
Family
ID=4582357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00112503 Pending CN1340407A (en) | 2000-09-01 | 2000-09-01 | Single-hammer brake for electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1340407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808866A (en) * | 2011-05-30 | 2012-12-05 | 博世电动工具（中国）有限公司 | Clutch used for electric tool and electric tool with clutch |
-
2000
- 2000-09-01 CN CN 00112503 patent/CN1340407A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808866A (en) * | 2011-05-30 | 2012-12-05 | 博世电动工具（中国）有限公司 | Clutch used for electric tool and electric tool with clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |