CN105014541A - Handheld electric grinder with shutdown braking device - Google Patents
Handheld electric grinder with shutdown braking device Download PDFInfo
- Publication number
- CN105014541A CN105014541A CN201410166335.0A CN201410166335A CN105014541A CN 105014541 A CN105014541 A CN 105014541A CN 201410166335 A CN201410166335 A CN 201410166335A CN 105014541 A CN105014541 A CN 105014541A
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- brake
- rotating shaft
- hull
- emery wheel
- gai
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Abstract
The invention discloses a handheld electric grinder with a shutdown braking device. The handheld electric grinder comprises a body, a rotary shaft unit, a brake disc, a brake device and a power switch. The rotary shaft unit is arranged on the body in a pivoted manner and provided with a brake shaft portion. The brake disc is fixedly arranged on the brake shaft portion, and provided with a brake disc portion. The brake device allows the brake shaft portion to be rotatably inserted, and is provided with a brake body, a brake coil, a plurality of brake springs and a brake block. The power switch can be switched between an on state (ON) and an off state (OFF), so that the brake block is controlled to be separated from the brake disc portion of the brake disc or be in contact with the brake disc portion of the brake disc to generate braking to shorten the time from power losing of the rotary shaft unit to complete stopping of the rotary shaft unit, and the aims of improving work efficiency and lowering work danger are achieved.
Description
Technical field
The present invention is relevant with hand electric abrasive machine, refers to a kind of hand electric abrasive machine with shutdown braking device especially.
Background technology
The type of drive of current hand electric abrasive machine is roughly divided into motor and indirectly drives (corner-type) and the large class of motor Direct driver two.Consult shown in Fig. 1, the hand electric abrasive machine that display motor drives indirectly, transmission is turned to by a umbellate form angle gear train 13 as power between its motor shaft 11 and emery wheel rotating shaft 12, switching through power switch 14 starts, motor shaft 11 is produced rotate, and then drive emery wheel rotating shaft 12 synchronous axial system, allow the emery wheel 15 being overlapped on this emery wheel rotating shaft 12 be carried out grinding operation.
But, when the power switch 14 of this hand electric abrasive machine switches to off-position (OFF) by "on" position (ON), although stopped electric energy changing into kinetic energy, this motor shaft 11 is allowed to run out of steam source, but, this motor shaft 11 is by running out of steam to the overlong time stopped completely, when causing this power switch 14 being switched to off-position (OFF), this motor shaft 11, emery wheel rotating shaft 12 and emery wheel 15 cannot stop at short notice, user only can continue this hand electric abrasive machine hand-held, until this emery wheel 15 stops operating completely, this hand electric abrasive machine could be seated in elsewhere, so not only operating efficiency can be reduced, also the generation of work risk can be increased.Secondly, this hand electric abrasive machine approximately belongs to a kind of electric machinery of slow-speed of revolution height torsion, therefore, when this hand electric abrasive machine is just placed elsewhere when stopping not yet completely and do not keep hand holding state, as easy as rolling off a log generation is rocked, autorotation, and then increases the generation of work risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hand electric abrasive machine with shutdown braking device, to promote operating efficiency, reduces the generation of work risk.
For solving the problems of the technologies described above a kind of hand electric abrasive machine with shutdown braking device provided by the present invention, comprise: a body, one rotating shaft unit, is hubbed at this body, and has a brake axle portion, Yi Brake hull, is fixedly arranged on this brake axle portion, and Ju You mono-Brake hull portion, one brake apparatus, can plant rotationally for this brake axle portion, and have a brake, a restraining coil, multiple tripping spring and a brake block, wherein: this brake has the accommodating braked space in Gai Brake hull portion of a Gong, this restraining coil is fixedly arranged on this brake, and can produce a magnetic attraction after energising, respectively this tripping spring have one be arranged at this brake first braking bullet portion and be in reverse to this first braking bullet portion and under normality Gai Brake hull direction of Chao pushing and pressing second braking bullet portion, this brake block can shift reciprocately be arranged on this braked space, and Gai Brake hull portion of position and this second braking bullet portion between, one power switch, can switch between a "on" position and an off-position, when this power switch switches to this "on" position, drive this rotating shaft unit Yu Gai Brake hull rotates, the magnetic attraction of this restraining coil generation simultaneously gives this brake block, drive this brake block Yu Gai Brake hull disengages, when this power switch switches to this off-position, stop driving this rotating shaft unit Yu Gai Brake hull rotates, this restraining coil loses magnetic attraction simultaneously, and respectively the second braking bullet portion of this tripping spring pushes against Gai Brake hull direction of this brake block Chao and moves, brake in order to do making this brake block Yu Gai Brake hull Brake hull portion contact to produce.
Preferably, this rotating shaft unit comprises a motor shaft and an emery wheel rotating shaft, this motor shaft one end is this brake axle portion, this motor shaft other end is installed with one first bevel type gear, this emery wheel rotating shaft one end is installed with second bevel type gear engaged with this first bevel type gear, and this emery wheel rotating shaft other end is provided with an emery wheel.
Preferably, this rotating shaft unit comprises a motor shaft and an emery wheel rotating shaft, this motor shaft one end is free end, this motor shaft other end is installed with one first bevel type gear, this emery wheel rotating shaft one end is installed with second bevel type gear engaged with this first bevel type gear, this emery wheel rotating shaft other end is provided with an emery wheel, and this emery wheel rotating shaft is provided with this brake axle portion.
Preferably, this rotating shaft unit one end is this brake axle portion, and this rotating shaft unit other end is provided with an emery wheel.
Preferably, the brake of this brake apparatus has more multiple storage tank, respectively this storage tank has one towards the notch in the Brake hull portion of this Brake hull, and respectively the first braking bullet portion of this tripping spring supports only in this storage tank groove bottom, and this second braking bullet portion only supports at this brake block.
Closing the present invention for reaching above-mentioned purpose, the technology adopted, means and other effect, hereby lifting three better possible embodiments and coordinating graphic being described in detail as follows.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is further detailed explanation:
Fig. 1 shows the side view of existing hand electric abrasive machine.
Fig. 2 is the three-dimensional exploded view of first embodiment of the invention.
Fig. 3 is the constitutional diagram of first embodiment of the invention.
Fig. 4 is the part sectioned view of first embodiment of the invention, and display restraining coil produces the state of a magnetic attraction after energising.
Fig. 5 is the part sectioned view of first embodiment of the invention, the state of display restraining coil after power-off.
Fig. 6 is the constitutional diagram of second embodiment of the invention.
Fig. 7 is the constitutional diagram of third embodiment of the invention.
Description of reference numerals
Umbellate form angle gear train 13
Emery wheel 15
Body 20
Head 21
Body portion 22
Rotating shaft unit 30,30A, 30B
Motor shaft 11,31,31A
Brake axle portion 311,323A, 301B
First bevel type gear 312,312A
Emery wheel rotating shaft 12,32,32A
Second bevel type gear 321,321A
Emery wheel 15,322,322A, 302B
Brake hull 40,40A, 40B
Brake hull portion 41
Brake apparatus 50,50A, 50B
Brake 51
Braked space 511
Storage tank 512
Notch 5121
Groove bottom 5122
Restraining coil 52
Tripping spring 53
First braking bullet portion 531
Second braking bullet portion 532
Brake block 54
Power switch 14,60
Detailed description of the invention
Consult shown in Fig. 2 to Fig. 5; a kind of hand electric abrasive machine with shutdown braking device that first embodiment of the invention provides; it formed primarily of body 20, rotating shaft unit 30, mono-Brake hull 40, brake apparatus 50 and a power switch 60, wherein:
This body 20, is made up of a head 21 and the whole body portion 22.
This rotating shaft unit 30, is hubbed at this body 20, and has a brake axle portion 311; In the present embodiment, this rotating shaft unit 30 comprises motor shaft 31 and an emery wheel rotating shaft 32, this motor shaft 31 one end is this brake axle portion 311, this motor 31 other end is installed with one first bevel type gear 312, this emery wheel rotating shaft 32 one end is installed with second bevel type gear 321 engaged with this first bevel type gear 312, and this emery wheel rotating shaft 32 other end is provided with an emery wheel 322.
Gai Brake hull 40, is fixedly arranged on the brake axle portion 311 of this rotating shaft unit 30, and Ju You mono-Brake hull portion 41.
This brake apparatus 50, can plant rotationally in the brake axle portion 311 for this rotating shaft unit 30, and have brake 51, restraining coil 52, multiple tripping spring 53 and a brake block 54, wherein:
This brake 51 has one for the accommodating braked space 511 in this Brake hull portion 41 and multiple storage tank 512, and respectively this storage tank 512 has one towards the notch 5121 in the Brake hull portion 41 of this Brake hull 40;
This restraining coil 52 is fixedly arranged on this brake 51, and can produce a magnetic attraction after energising;
Respectively this tripping spring 53 has a first braking bullet portion 531 and being arranged at this brake 51 and is in reverse to this first braking bullet portion 531 and the second braking bullet portion 532 of Gai Brake hull 40 direction of Chao pushing and pressing under normality; In the present embodiment, respectively this tripping spring 53 is all Compress Spring, and this first braking bullet portion 531 only supports in this storage tank 512 groove bottom 5122;
This brake block 54, and can the braked space 511 being arranged on this brake 51 of shift reciprocately made by the material that can be magnetically attracted, and between Gai Brake hull portion 41 of position and this second braking bullet portion 532; In the present embodiment, this brake block 54 only supports by this second braking bullet portion 532, makes the portion 41 direction displacement of Gai Brake hull 40 of the permanent Chao of this brake block 54 Zhi Brake hull.
This power switch 60, can switch between a "on" position (ON) and an off-position (OFF), uses to control this brake block 54 and mutually disengage or contact to produce Yu Gai Brake hull 40 Brake hull portion 41 and brake.
The above is embodiment of the present invention main member and configuration explanation thereof.Effect as the embodiment of the present invention makes the following instructions.
Consult again shown in Fig. 4, when this power switch switches to this "on" position (ON), rotate except Gai Brake hull 40 of this rotating shaft unit 30 Yu can be driven, also a magnetic attraction can be produced after the energising of this restraining coil 52, this magnetic attraction can contain this brake block 54 simultaneously, to drive this brake block 54 towards this restraining coil 52 direction displacement, and allow Gai Brake hull 40 of this brake block 54 Yu disengage, this brake block 54 can compress respectively this tripping spring 53 simultaneously, respectively this tripping spring 53 is made to accumulate an elastic restoring force, now, this hand electric abrasive machine is duty.
Consult shown in Fig. 5, when this power switch switches to this off-position (OFF), this rotating shaft unit 30 can be allowed to run out of steam source, to stop driving Gai Brake hull 40 of this rotating shaft unit 30 Yu to rotate, except this rotating shaft unit 30 can be allowed to be except rotation of natural depletion, this restraining coil 52 more can lose magnetic attraction, this brake block 54 is allowed no longer to compress respectively this tripping spring 53, now, respectively this tripping spring 53 is recovered its elastic force, and by this second braking bullet portion 532, Gai Brake hull 40 direction of this brake block 54 Chao is promoted, brake in order to do making this brake block 54 Yu Gai Brake hull 40 Brake hull portion 41 contact to produce.
Accordingly, when the power switch 60 of this hand electric abrasive machine switches to off-position (OFF) by "on" position (ON), by the elastic restoring force of each this tripping spring 53, this brake block 54 Yu Gai Brake hull 40 Brake hull portion 41 is made to contact with each other and produce braking, therefore, this rotating shaft unit 30 can be shortened by running out of steam to the time stopped completely, under off-position (OFF), user's time is on hand rested on to reduce this hand electric abrasive machine, to reach lifting operating efficiency, reduce the object that work risk occurs.
Consult shown in Fig. 6; a kind of hand electric abrasive machine with shutdown braking device that second embodiment of the invention provides; it is made up of body, rotating shaft unit, Brake hull, brake apparatus and power switch equally; because its configuration and effect are same as the first embodiment; therefore repeat no more, be as the second embodiment difference:
This rotating shaft unit 30A comprises an a motor shaft 31A and emery wheel rotating shaft 32A, this motor shaft 31A one end is free end, this motor shaft 31A other end is installed with one first bevel type gear 312A, this emery wheel rotating shaft 32A one end is installed with a second bevel type gear 321A engaged with this first bevel type gear 312A, this emery wheel rotating shaft 32A other end is provided with an emery wheel 322A, and this emery wheel rotating shaft 32A is provided with this brake axle portion 323A, therefore Gai Brake hull 40A and brake apparatus 50A is arranged on this emery wheel rotating shaft 32A.
Consult shown in Fig. 7; a kind of hand electric abrasive machine with shutdown braking device that third embodiment of the invention provides; it is made up of body, rotating shaft unit, Brake hull, brake apparatus and power switch equally; because its configuration and effect are same as the first embodiment; therefore repeat no more, be as the 3rd embodiment difference:
This rotating shaft unit 30B is only single axis body, and this rotating shaft unit 30B one end is this brake axle portion 301B, and this rotating shaft unit 30B other end is provided with an emery wheel 302B, and therefore Gai Brake hull 40B and brake apparatus 50B is arranged on this rotating shaft unit 30B into single axis body.
Below through the specific embodiment and the embodiment to invention has been detailed description, but these are not construed as limiting the invention.Without departing from the principles of the present invention, those skilled in the art also can make many distortion and improvement, and these also should be considered as protection scope of the present invention.
Claims (5)
1. there is a hand electric abrasive machine for shutdown braking device, it is characterized in that, comprise:
One body;
One rotating shaft unit, is hubbed at this body, and has a brake axle portion;
Yi Brake hull, is fixedly arranged on this brake axle portion, and Ju You mono-Brake hull portion;
One brake apparatus, can plant rotationally for this brake axle portion, and have a brake, a restraining coil, multiple tripping spring and a brake block, wherein: this brake has the accommodating braked space in Gai Brake hull portion of a Gong; This restraining coil is fixedly arranged on this brake, and can produce a magnetic attraction after energising; Respectively this tripping spring have one be arranged at this brake first braking bullet portion and be in reverse to this first braking bullet portion and under normality Gai Brake hull direction of Chao pushing and pressing second braking bullet portion; This brake block can shift reciprocately be arranged on this braked space, and Gai Brake hull portion of position and this second braking bullet portion between;
One power switch, can switch between a "on" position and an off-position, when this power switch switches to this "on" position, drive this rotating shaft unit Yu Gai Brake hull rotates, the magnetic attraction of this restraining coil generation simultaneously gives this brake block, drive this brake block Yu Gai Brake hull disengages, when this power switch switches to this off-position, stop driving this rotating shaft unit Yu Gai Brake hull rotates, this restraining coil loses magnetic attraction simultaneously, and respectively the second braking bullet portion of this tripping spring pushes against Gai Brake hull direction of this brake block Chao and moves, brake in order to do making this brake block Yu Gai Brake hull Brake hull portion contact to produce.
2. there is the hand electric abrasive machine of shutdown braking device as claimed in claim 1; it is characterized in that: this rotating shaft unit comprises a motor shaft and an emery wheel rotating shaft; this motor shaft one end is this brake axle portion; this motor shaft other end is installed with one first bevel type gear; this emery wheel rotating shaft one end is installed with second bevel type gear engaged with this first bevel type gear, and this emery wheel rotating shaft other end is provided with an emery wheel.
3. there is the hand electric abrasive machine of shutdown braking device as claimed in claim 1; it is characterized in that: this rotating shaft unit comprises a motor shaft and an emery wheel rotating shaft; this motor shaft one end is free end; this motor shaft other end is installed with one first bevel type gear; this emery wheel rotating shaft one end is installed with second bevel type gear engaged with this first bevel type gear; this emery wheel rotating shaft other end is provided with an emery wheel, and this emery wheel rotating shaft is provided with this brake axle portion.
4. have the hand electric abrasive machine of shutdown braking device as claimed in claim 1, it is characterized in that: this rotating shaft unit one end is this brake axle portion, this rotating shaft unit other end is provided with an emery wheel.
5. there is the hand electric abrasive machine of shutdown braking device as claimed in claim 1; it is characterized in that: the brake of this brake apparatus has more multiple storage tank; respectively this storage tank has one towards the notch in the Brake hull portion of this Brake hull; respectively the first braking bullet portion of this tripping spring supports only in this storage tank groove bottom, and this second braking bullet portion only supports at this brake block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166335.0A CN105014541A (en) | 2014-04-23 | 2014-04-23 | Handheld electric grinder with shutdown braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166335.0A CN105014541A (en) | 2014-04-23 | 2014-04-23 | Handheld electric grinder with shutdown braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105014541A true CN105014541A (en) | 2015-11-04 |
Family
ID=54405024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410166335.0A Pending CN105014541A (en) | 2014-04-23 | 2014-04-23 | Handheld electric grinder with shutdown braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105014541A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762768A (en) * | 2016-12-29 | 2017-05-31 | 深圳兴奇宏科技有限公司 | Moulinet structure |
| CN109465698A (en) * | 2018-11-08 | 2019-03-15 | 泉州市泉港区鑫悦盟工业科技有限公司 | A kind of high security door-plate grinding device convenient for safeguarding |
| WO2021000940A1 (en) * | 2019-07-04 | 2021-01-07 | 苏州宝时得电动工具有限公司 | Handheld tool |
| CN113940716A (en) * | 2021-11-29 | 2022-01-18 | 苏州法兰克曼医疗器械有限公司 | Electric endoscope anastomat convenient to adjust bending state |
| CN114516196A (en) * | 2022-03-17 | 2022-05-20 | 美尔森石墨工业（重庆）有限公司 | Safety protection device for hoisting graphite blank |
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| CN101254588A (en) * | 2006-12-27 | 2008-09-03 | 麦太保有限公司 | Portable electric tool with braking device |
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| WO2012126660A1 (en) * | 2011-03-18 | 2012-09-27 | Robert Bosch Gmbh | Power tool braking device |
| WO2012126666A1 (en) * | 2011-03-18 | 2012-09-27 | Robert Bosch Gmbh | Machine tool braking apparatus |
| CN103189166A (en) * | 2010-10-29 | 2013-07-03 | 罗伯特·博世有限公司 | Power tool braking device |
| CN103189165A (en) * | 2010-10-29 | 2013-07-03 | 罗伯特·博世有限公司 | Power tool braking device |
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2014
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Patent Citations (6)
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|---|---|---|---|---|
| CN101254588A (en) * | 2006-12-27 | 2008-09-03 | 麦太保有限公司 | Portable electric tool with braking device |
| CN101623834A (en) * | 2008-07-13 | 2010-01-13 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103189166A (en) * | 2010-10-29 | 2013-07-03 | 罗伯特·博世有限公司 | Power tool braking device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762768A (en) * | 2016-12-29 | 2017-05-31 | 深圳兴奇宏科技有限公司 | Moulinet structure |
| CN106762768B (en) * | 2016-12-29 | 2019-03-01 | 深圳兴奇宏科技有限公司 | Moulinet structure |
| CN109465698A (en) * | 2018-11-08 | 2019-03-15 | 泉州市泉港区鑫悦盟工业科技有限公司 | A kind of high security door-plate grinding device convenient for safeguarding |
| WO2021000940A1 (en) * | 2019-07-04 | 2021-01-07 | 苏州宝时得电动工具有限公司 | Handheld tool |
| CN113940716A (en) * | 2021-11-29 | 2022-01-18 | 苏州法兰克曼医疗器械有限公司 | Electric endoscope anastomat convenient to adjust bending state |
| CN114516196A (en) * | 2022-03-17 | 2022-05-20 | 美尔森石墨工业（重庆）有限公司 | Safety protection device for hoisting graphite blank |
| CN114516196B (en) * | 2022-03-17 | 2024-01-23 | 美尔森石墨工业（重庆）有限公司 | Safety protection device for hanging graphite blank |
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Application publication date: 20151104 |
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| WD01 | Invention patent application deemed withdrawn after publication |