CN107553283A - Electric hand tool - Google Patents
Electric hand tool Download PDFInfo
- Publication number
- CN107553283A CN107553283A CN201710970761.3A CN201710970761A CN107553283A CN 107553283 A CN107553283 A CN 107553283A CN 201710970761 A CN201710970761 A CN 201710970761A CN 107553283 A CN107553283 A CN 107553283A
- Authority
- CN
- China
- Prior art keywords
- main body
- motor
- shell
- air drain
- main shaft
- 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.)
- Granted
Links
- 241001656951 Protheca Species 0.000 claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims abstract description 7
- 230000001427 coherent effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 24
- 239000000428 dust Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 240000006891 Artemisia vulgaris Species 0.000 description 2
- 235000003261 Artemisia vulgaris Nutrition 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Prostheses (AREA)
Abstract
A kind of electric hand tool, it includes being made up of shell and movement, shell is made up of rear shell, middle shell, fore shell three parts, movement is made up of motor, motor headgear, bearing nut, main body, rear bearing, bearing shim, spring, handle aluminium lining ring, ball overcoat, ball, ball inner sleeve, main body nut, main shaft protheca, main shaft from back to front;It is characterized by:The top of rear shell has an intake interface, there is an air flue that front end is penetrated into from rear end, inwall of the air passage outlet in main shaft protheca in movement.The present invention is improved in prior art basis, forced refrigeration is carried out to movement inside by the air flue for increasing intake interface and insertion, hot, dust-proof, the problem of considering to be worth doing clearly of electric hand tool can be efficiently solved, the service life of electric tool is substantially increased and improves the working environment of operating personnel.
Description
Technical field
The present invention relates to a kind of electric tool, and in particular to a kind of electric hand tool.
Technical background
Common electric hand tool is mainly used in jade, dentistry and other field polishing engraving, as Figure 1-3 hand-held
Electric tool-Chinese mugwort ultrahigh-speed sander (AT150B-001), it is made up of shell, movement, shell from back to front by rear shell 15, in
Shell 14, the three parts of fore shell 3 composition, movement is from back to front by motor 13, motor headgear 12, bearing nut 11, main body 7, rear bearing
10th, bearing shim 9, spring 8, handle aluminium lining ring 6, ball overcoat 5, ball 17, ball inner sleeve 18, main body nut 4, main shaft protheca
2nd, main shaft 1 is formed;The main shaft by three valve spring 1-2, hollow shaft 1-3, jump ring 1-4, dust ring 1-5, dirt-proof boot 1-6, fore bearing
1-7, disc spring 1-8, disc spring lock 1-9, three valve springs lock 1-15, latch 1-10, the short set 1-13 of little spring, little spring 1-12 are small
Spring length set 1-11, small shaft core 1-14 compositions.
If Fig. 4-6 is the structural representation of its motor 13, main body 7, main shaft protheca 2 respectively, its motor makes for a long time
It is directly to contact with handle case to be transmitted to handle surfaces and carry out natural heat dissipation by motor with middle sent out heat, radiating effect is poor,
Make handle surfaces hot, not only influence the normal work of instrument, can also hinder the usage experience of user, be unfavorable for electric tool
Long working, motor rear end has three screw locked groove 13-1-4.For in general electric tool when work, its front end is only
Made of dust ring 1-5 and dirt-proof boot 1-6 simple dust-proof, there are two symmetrical crumb mouth 2-2 the front end of main shaft protheca 2, use
In the impurity for being discharged into protheca, but dust and water smoke still can enter tool interior from the inwall of main shaft protheca, not only
The performance of instrument is influenced whether, can also inner body is got rusty, shortens the service life of instrument.
The content of the invention
It is an object of the invention to overcome the cooling of the suction impurity of electric tool present in prior art and instrument bad
The shortcomings that, there is provided a kind of electric hand tool cooled down with good dustproof effect.
The technical solution adopted in the present invention is a kind of electric hand tool, and it includes being made up of shell and movement, shell
Be made up of rear shell, middle shell, fore shell three parts, movement from back to front by motor, motor headgear, bearing nut, main body, rear bearing,
Bearing shim, spring, handle aluminium lining ring, ball overcoat, ball, ball inner sleeve, main body nut, main shaft protheca, main shaft are formed;Its
It is characterized by:The top of rear shell has an intake interface, there is an air flue that front end is penetrated into from rear end, air passage outlet in movement
In the inwall of main shaft protheca.
The present invention is improved in prior art basis, by increasing intake interface and insertion air flue to movement inside
Carry out forced refrigeration, the outlet of air flue inwall, the gap between the main shaft rotated in the prior art and main shaft protheca is
The outlet of air flue is arranged on the inwall of main shaft protheca by the main part inside dust entering tool, the present invention so that dust is not
It must enter, ensure that the cleaning inside movement, extend the service life of instrument.
Described air flue is by handle rear shell intake interface, plug stomata, motor air drain, main body air drain, main body stomata, main shaft
Protheca air drain forms, and these gas passages connect, and it is unobstructed to ensure that gas circulates in handle inner.
It is compact-sized because electric hand tool inner body is more, in order to ensure that the air flue that front end is penetrated into from rear end is suitable
Freely, the present invention connects more closed several part designs air ventilation passage, these gas passages each other by original
Connect, it is unobstructed to ensure that gas circulates in handle inner.
Specifically it is designed as:
Described motor air drain by motor rear end screw locked groove, the twill air drain of outer surface of motor, motor front end axial direction air drain and
The motor front end face radial direction air drain communicated with motor front end axial direction air drain is formed, and forms coherent air flue.Original motor is tight with shell
Contiguity is touched, and in motor Surface Machining twill air drain, gas is flowed along motor perficial helical, takes away heat, at the same motor with it is outer
The contact surface of shell is small, is transmitted to that the heat of shell is few, improves the usage experience of user.Because motor headgear and shell are close
Coordinate, it is special to be introduced gas inside motor headgear by motor front end face radial direction air drain.
Described main body air drain is opened in the part of main body inner wall and rear bearing fit, and the front end of main body is provided with a main body gas
Hole, gas lead to main body stomata by main body air drain.Because main body inner wall and rear bearing mating part are more closed, ad hoc meter is in master
Internal wall is provided with axial main body air drain, make gas by main body by and entering main shaft protheca by front end main body stomata.
Described main shaft protheca air drain is opened in the part that main shaft protheca coordinates with fore bearing.Due to main shaft protheca and fore bearing
Mating part is more closed, and ad hoc meter is provided with axial main shaft protheca air drain in the inwall of main shaft protheca, before making gas by main shaft
Cover inwall to spray, both dust blew off main shaft, and machined surface is radiated, improve the working environment of processing head, improve plus
Working medium amount.
There are the motor front end axial direction air drain and motor front end face radial direction air drain of three circumference uniform distributions, form coherent air flue.
The present invention is improved in prior art basis, by increasing intake interface and insertion air flue to movement inside
Forced refrigeration is carried out, hot, dust-proof, the problem of considering to be worth doing clearly of electric hand tool can be efficiently solved, substantially increased electronic
The service life of instrument and the working environment for improving operating personnel.
Brief description of the drawings
Fig. 1 is the structural representation of existing electric hand tool-Chinese mugwort ultrahigh-speed sander
Fig. 2 is the shell mechanism schematic diagram of electric hand tool
Fig. 3 is the cassette mechanism structure schematic diagram of electric hand tool
Fig. 4 is the electric machine structure schematic diagram of existing electric hand tool
Fig. 5 is the agent structure schematic diagram of existing electric hand tool
Fig. 6 is the main shaft protheca structural representation of existing electric hand tool
Fig. 7 is the main shaft portion structural representation of electric hand tool
Fig. 8 is the structural representation of electric hand tool of the present invention
Fig. 9 is that the air flue of electric hand tool of the present invention moves towards schematic diagram
Figure 10 is the structural representation of rear shell of the present invention
Figure 11 is the structural representation of motor after improving
Figure 12 is the structural representation of main body after improving
Figure 13 is main body and the structural representation of rear bearing fit after improving
The structural representation of main shaft protheca after Figure 14 is improved
The structural representation that main shaft protheca coordinates with fore bearing after Figure 15 is improved
Figure 16 is use state figure of the present invention
Wherein:The valve spring 1-3 hollow shaft 1-4 jump ring 1-5 dust ring 1-6 dirt-proof boot 1-7 fore bearings 1-8 of 1 main shaft 1-1 plugs 1-2 tri-
The short small shaft core 1-15 tri- of set 1-14 of disc spring 1-9 disc springs lock 1-10 latch 1-11 little spring length set 1-12 little spring 1-13 little springs
Valve spring latches the handle aluminium insert 7 of 2 main shaft protheca 2-1 main shaft protheca air drain 2-2 crumb mouths 3 fore shell, 4 main body nut, 5 ball overcoat 6
The motor of 11 bearing nut of bearing, 12 motor headgear 13 after main body, the bearing shim 10 of 8 spring of 7-1 main body stomata 7-2 main bodys air drains 9
13-1 motor air drain 13-1-1 twill air drain 13-1-2 motor front end faces radial direction air drain 13-1-3 motors front end axial direction air drain 13-1-
The ball inner sleeve 19 of 15 rear shell 15-1 intake interfaces of shell, 16 17 ball of plug 16-1 plugs stomata 18 in 4 motor rear end screw locked grooves 14
The air flue 22-1 air passage outlets of 20 power supply of air pump 22.
Embodiment
The present invention is described in detail with reference to view, cited embodiment can make this professional technology people
Member more understands the present invention, but the invention is not limited in any way.
As shown in Fig. 2,7-16, the present invention is improved in prior art basis, and it is included by shell and movement group
Into shell is made up of rear shell 15, middle shell 14, the three parts of fore shell 3, and movement is from back to front by motor 13, motor headgear 12, bearing spiral shell
Mother 11, main body 7, rear bearing 10, bearing shim 9, spring 8, handle aluminium lining ring 6, ball overcoat 5, ball 17, ball inner sleeve 18,
Main body nut 4, main shaft protheca 2, main shaft 1 are formed;The top of rear shell has an intake interface 15-1, has one in movement from rear end
Penetrate into the air flue 22 of front end, inwalls of the air passage outlet 22-1 in main shaft protheca.
It is compact-sized because electric hand tool inner body is more, in order to ensure that the air flue that front end is penetrated into from rear end is suitable
Freely, the present invention connects more closed several part designs air ventilation passage each other by original, after air flue 22 is by handle
Shell intake interface 15-1, plug stomata 16-1, motor air drain 13-1, main body air drain 7-2, main body stomata 7-1, main shaft protheca air drain
2-1 is formed, and these gas passages connect, and it is unobstructed to ensure that gas circulates in handle inner.
Main improved part of the invention has handle rear shell, plug, motor, main body, main shaft protheca.
Specially:The holes drilled through directly in handle rear shell 15 and plug 16, intake interface 15-1 and plug stomata 16-1.
Motor air drain 13-1 is by the use of existing motor rear end screw locked groove 13-1-4 as gas passage, and increases motor
Before twill air drain 13-1-1, the motor front end axial direction air drain 13-1-3 of outer surface and the motor communicated with motor front end axial direction air drain
End face radial direction air drain 13-1-2, forms coherent air flue.In the twill air drain 13-1-1 of processing outer surface of motor, its both ends is moved back
Cutter groove, original motor are in close contact with shell, in motor Surface Machining twill air drain, gas is flowed along motor perficial helical, band
Heat is walked, while the contact surface of motor and shell is small, be transmitted to that the heat of shell is few, improve the usage experience of user.Motor
The air drain on surface can also be processed into straight trough.Because motor headgear and shell is are fitted close, spy passes through motor front end face radial direction gas
Groove introduces gas inside motor headgear.
Increase main body air drain 7-2 in main body, main body stomata 7-1, main body air drain 7-2 are opened in main body inner wall and matched somebody with somebody with rear bearing 10
The part of conjunction, the front end of main body are provided with a main body stomata 7-1, and gas leads to main body stomata 7-1 by main body air drain 7-2.In master
Internal wall is provided with axial main body air drain, make gas by main body by and entering main shaft protheca by front end main body stomata.
Main shaft protheca is cancelled(Closing)Original crumb mouth 2-2, increase main shaft protheca air drain 2-1, it is opened in main shaft protheca 2
The part coordinated with fore bearing 1-7, cooling gas is concentrated on front end and concentrate blowout.Due to main shaft protheca and fore bearing auxiliary section
Point more closed, ad hoc meter is provided with axial main shaft protheca air drain in the inwall of main shaft protheca, makes gas by main shaft protheca inwall
Spray, both dust blew off main shaft, and machined surface is radiated, improve the working environment of processing head, improve crudy.
Figure 16 is the use state figure of the present invention, passes through pipeline and the present invention by external air pump 19 or other sources of the gas
The intake interface 15-1 of handle rear shell communicate, power supply 20 electrically connects with the present invention and air pump.
The course of work of the present invention:The power supply 20 of electric hand tool is opened, makes electric tool in running order, air pump
19 produce intake interface of the cooling gas by handle rear shell(15-1)Motor air drain is entered back into plug stomata 16-1(13-
1)(By motor rear end screw locked groove(13-1-4), outer surface of motor twill air drain(13-1-1), motor front end axial direction air drain
(13-1-3)And the motor front end face radial direction air drain communicated with motor front end axial direction air drain(13-1-2)), into motor headgear
Portion, gas are transmitted to main body by main body air drain 7-2 by motor headgear 12, main body inner wall are entered, because body outer wall has ball
6 three parts of the main body nut 5 of overcoat 5 and handle aluminium lining ring, ball overcoat 5 coordinate with body outer wall end face, main body nut 5 and master
The end face of axle protheca 2 coordinates, and above-mentioned structure gets up body outer wall and body seal so that gas can only be full of in whole main body
Wall, main body inner wall include spring 8, and ball inner sleeve 18 also has main shaft, due to the inwall of main shaft 1 include three valve springs lock 1-12 and
Three valve spring 1-3, the two parts and main shaft inwall coordinate close, and gas, which is not easy to enter main shaft inwall from main body inner wall, to be passed through
Gap between three valve spring 1-2 and the inwall of main shaft is by so gas can only be by between ball inner sleeve 18 and main shaft
Gap is by reaching the main body stomata 7-1 of body front end, then reach main shaft protheca air drain 2-1 by main body stomata 7-1, by main shaft
Protheca front end is blown out.
Remaining not described part is same as the prior art.
Claims (6)
1. a kind of electric hand tool, it includes being made up of shell and movement, and shell is by rear shell(15), middle shell(14), fore shell(3)
Three parts form, and movement is from back to front by motor(13), motor headgear(12), bearing nut, main body, rear bearing, bearing shim,
Spring, handle aluminium lining ring, ball overcoat, ball, ball inner sleeve, main body nut, main shaft protheca, main shaft are formed, it is characterised in that:
The top of rear shell has an intake interface(15-1), there is an air flue that front end is penetrated into from rear end in movement(22), air flue goes out
Mouthful(22-1)In the inwall of main shaft protheca.
A kind of 2. electric hand tool according to claim 1, it is characterised in that:Described air flue(22)By handle rear shell
Intake interface(15-1), plug stomata(16-1), motor air drain(13-1), main body air drain(7-2), main body stomata(7-1), main shaft
Protheca air drain(2-1)Composition, these gas passages connect, and it is unobstructed to ensure that gas circulates in handle inner.
A kind of 3. electric hand tool according to claim 2, it is characterised in that:Described motor air drain(13-1)By electricity
Machine rear end screw locked groove(13-1-4), outer surface of motor twill air drain(13-1-1), motor front end axial direction air drain(13-1-3)
And the motor front end face radial direction air drain communicated with motor front end axial direction air drain(13-1-2)Form, form coherent air flue.
A kind of 4. electric hand tool according to claim 2, it is characterised in that:Described main body air drain(7-2)It is opened in
Main body inner wall and the part of rear bearing fit, the front end of main body is provided with a main body stomata(7-1), gas is by main body air drain(7-
2)Towards main body stomata(7-1).
A kind of 5. electric hand tool according to claim 2, it is characterised in that:Described main shaft protheca air drain(2-1)
It is opened in main shaft protheca(2)With fore bearing(1-7)The part of cooperation.
A kind of 6. electric hand tool according to claim 3, it is characterised in that:There is the motor front end of three circumference uniform distributions
Axial air drain(13-1-3)And motor front end face radial direction air drain(13-1-2)Form, form coherent air flue.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710970761.3A CN107553283B (en) | 2017-10-18 | 2017-10-18 | Hand-held electric tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710970761.3A CN107553283B (en) | 2017-10-18 | 2017-10-18 | Hand-held electric tool |
Publications (2)
Publication Number | Publication Date |
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CN107553283A true CN107553283A (en) | 2018-01-09 |
CN107553283B CN107553283B (en) | 2023-07-18 |
Family
ID=60986603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201710970761.3A Active CN107553283B (en) | 2017-10-18 | 2017-10-18 | Hand-held electric tool |
Country Status (1)
Country | Link |
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CN (1) | CN107553283B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12021437B2 (en) | 2019-06-12 | 2024-06-25 | Milwaukee Electric Tool Corporation | Rotary power tool |
Citations (13)
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---|---|---|---|---|
CH315437A (en) * | 1954-10-30 | 1956-08-15 | Duss Maschf | Electric tools, especially for electric hand grinding |
US3935909A (en) * | 1973-08-28 | 1976-02-03 | Mabuchi Motor Co. Ltd. | Electric hand tool |
DE3219696A1 (en) * | 1982-05-26 | 1983-12-01 | Robert 5446 Engeln Wolff | Drive machine for tools, in particular in a small type of construction |
WO1996019156A1 (en) * | 1994-12-22 | 1996-06-27 | Moskovsky Gosudarstvenny Aviatsionny Institut (Tekhnichesky Universitet) | Dental drilling device |
GB9725620D0 (en) * | 1996-12-18 | 1998-02-04 | Bosch Gmbh Robert | Hand machine tool |
US20040224621A1 (en) * | 2000-03-10 | 2004-11-11 | Fraser Mark Anthony | Power tool |
CN201333656Y (en) * | 2008-12-25 | 2009-10-28 | 永康市正大实业有限公司 | Hand-held dust-proof angular grinding and polishing machine |
CN102149515A (en) * | 2009-01-30 | 2011-08-10 | 日立工机株式会社 | Power tool |
JP2014037037A (en) * | 2012-08-17 | 2014-02-27 | Makita Corp | Electric tool |
CN104191356A (en) * | 2014-09-25 | 2014-12-10 | 桂林桂北机器有限责任公司 | Pressurized sealing water-proof and dust-proof anti-collision grinding head |
CN205765440U (en) * | 2016-07-22 | 2016-12-07 | 曹集林 | A kind of novel electric brushless polisher handle |
US20170136614A1 (en) * | 2014-06-30 | 2017-05-18 | Hitachi Koki Co., Ltd. | Electric tool |
CN207309647U (en) * | 2017-10-18 | 2018-05-04 | 福州集力电子技术研究所 | Electric hand tool |
-
2017
- 2017-10-18 CN CN201710970761.3A patent/CN107553283B/en active Active
Patent Citations (13)
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---|---|---|---|---|
CH315437A (en) * | 1954-10-30 | 1956-08-15 | Duss Maschf | Electric tools, especially for electric hand grinding |
US3935909A (en) * | 1973-08-28 | 1976-02-03 | Mabuchi Motor Co. Ltd. | Electric hand tool |
DE3219696A1 (en) * | 1982-05-26 | 1983-12-01 | Robert 5446 Engeln Wolff | Drive machine for tools, in particular in a small type of construction |
WO1996019156A1 (en) * | 1994-12-22 | 1996-06-27 | Moskovsky Gosudarstvenny Aviatsionny Institut (Tekhnichesky Universitet) | Dental drilling device |
GB9725620D0 (en) * | 1996-12-18 | 1998-02-04 | Bosch Gmbh Robert | Hand machine tool |
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CN201333656Y (en) * | 2008-12-25 | 2009-10-28 | 永康市正大实业有限公司 | Hand-held dust-proof angular grinding and polishing machine |
CN102149515A (en) * | 2009-01-30 | 2011-08-10 | 日立工机株式会社 | Power tool |
JP2014037037A (en) * | 2012-08-17 | 2014-02-27 | Makita Corp | Electric tool |
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CN104191356A (en) * | 2014-09-25 | 2014-12-10 | 桂林桂北机器有限责任公司 | Pressurized sealing water-proof and dust-proof anti-collision grinding head |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12021437B2 (en) | 2019-06-12 | 2024-06-25 | Milwaukee Electric Tool Corporation | Rotary power tool |
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Publication number | Publication date |
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CN107553283B (en) | 2023-07-18 |
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Effective date of registration: 20231130 Address after: Room 101-2, 108-2, 1st Floor, Building 1-2, Wuyi Zhigu Software Park, No.1 Tongyou Street, Jianyang District, Nanping City, Fujian Province, 354299 Patentee after: Nanping Zhichuang Technology Service Co.,Ltd. Address before: 350001 501, 10th floor, Xiannan commercial building, 89 bay17 North Road, Gulou District, Fuzhou City, Fujian Province Patentee before: FUZHOU JILI ELECTRONIC TECHNOLOGY Research Institute |