CN102710057A - Axial impact resisting motor and gas nailer including same - Google Patents
Axial impact resisting motor and gas nailer including same Download PDFInfo
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- CN102710057A CN102710057A CN201210183066XA CN201210183066A CN102710057A CN 102710057 A CN102710057 A CN 102710057A CN 201210183066X A CN201210183066X A CN 201210183066XA CN 201210183066 A CN201210183066 A CN 201210183066A CN 102710057 A CN102710057 A CN 102710057A
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- axial impact
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- impact force
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Abstract
The invention provides a motor resisting axial impact and a gas nailer including the same. The axial impact resisting motor comprises a motor shell, a motor magnet seat arranged in the motor shell, and a motor shaft penetrating the internal hole of the motor magnet seat; the part of the motor shaft extending out of the motor shell is fixed with a retaining ring; when the motor shaft suffers from axial impact, the retaining ring moves along with the motor shaft to be in contact with the motor magnet seat. The motor and gas nailer provided by the invention can bear the axial impact and protect the internal part of the motor from being damaged by gas explosion impact; and moreover, the displacement problem when the coil plate and the motor shaft, the coil and the coil plate are axially impacted at the motor shaft can be solved; and the rotation of the motor and the gas nailer can be fast recovered after being impacted so as to realize normal use.
Description
Technical field
The present invention relates to a kind of anti-axial impact force motor and comprise the gas nail rifle of this anti-axial impact force motor.
Background technology
Pneumatic nail gun is used in timber fixed operation in the modern architecture industry usually; Pressure ejaculation iron nail through Compressed Gas fixes timber; But because pneumatic nail gun must connect air compressor's bottle by tracheae when operation; So the operating personnel is restricted when operation, the pulling tracheae causes danger easily during work high above the ground.
For above-mentioned reasons, tight demand is a on the market does not have the nail rifle of tracheae to substitute pneumatic nail gun.And gas nail rifle is to utilize the pressure ejaculation iron nail of gas explosion to fix timber, therefore becomes the novel product that substitutes pneumatic nail gun.But gas nail rifle utilizes gas explosion to carry out operation, and need to have the fan electromotor of the long-time explosion-proof impact of lasting antifatigue be to be difficult to the technical barrier that overcomes at present for rapid mixing, the ventilation of gas in the cavity.Because the flabellum of gas nail rifle motor must be placed among the gas explosion cavity of gas nail rifle, motor axially can receive huge impact power, the tired operating mode of generation impulsive force when the common electric machine structure can't be born gas explosion when gas explosion.
Therefore need a kind of novel gas nail rifle motor, can bear huge axial impact force, the destruction that the protection motor internal does not receive the gas explosion impulsive force.
Summary of the invention
The technical problem that the present invention will solve provides a kind of anti-axial impact force motor and comprises the gas nail rifle of this anti-axial impact force motor, can bear axial impact force, the destruction that the protection motor internal does not receive the gas explosion impulsive force.
For solving the problems of the technologies described above, the invention provides a kind of anti-axial impact force motor, comprising:
Electric machine casing;
Be positioned at the motor magnetite seat of said electric machine casing;
Motor shaft passes the endoporus of said motor magnetite seat;
Said motor shaft stretches out on the part of said electric machine casing and is fixed with back-up ring, and when said motor shaft received axial impact, said back-up ring moved to said motor shaft and the touching of said motor magnetite seat.
Alternatively; Said motor magnetite seat has bearing chamber in the side that said motor shaft stretches out said electric machine casing, is provided with the bearing of the said motor shaft of supporting in the said bearing chamber, and said back-up ring comprises the outer ring and is fixed on the inner ring that also protrudes towards said bearing direction on the said outer ring; The diameter of said inner ring is less than the diameter of said outer ring; When said motor shaft received axial impact, said inner ring promoted said bearing and in said bearing chamber, slides, to said outer ring and the touching of said motor magnetite seat.
Alternatively, also be provided with the compression spring that supports said bearing in the said bearing chamber, when said inner ring promoted bearing, said bearing promoted the said compression spring of compression.
Alternatively, welding again after said back-up ring and said motor shaft are spirally connected.
Alternatively, the minor axis end of said motor shaft is provided with boss and fixes with coil panel, and said minor axis end is positioned at said electric machine casing.
Alternatively, fix for injection moulding between said boss and the said coil panel.
Alternatively, said coil panel is provided with stop tooth, and the coil when avoiding said motor shaft to receive axial impact on the said coil panel is loosening.
Alternatively, said anti-axial impact force motor also comprises:
Commutator is fixed on the minor axis end of said motor shaft, and said minor axis end is positioned at said electric machine casing;
Carbon brush is fixed on the brush station through torsion spring and carbon brush fixed axis;
Said brush station is fixed on the said electric machine casing;
Wherein, the distance that arrives said carbon brush fixed axis bottom the said commutator is greater than the distance of said back-up ring to said motor magnetite seat end face.
The present invention also provides a kind of gas nail rifle, comprises above-mentioned each described anti-axial impact force motor, and the motor shaft of said anti-axial impact force motor stretches out on the end of said electric machine casing and is fixed with ventilating fan.
Compared with prior art, the present invention has the following advantages:
The motor shaft of anti-axial impact force motor stretches out on the part of electric machine casing and is fixed with back-up ring in the embodiment of the invention; When motor shaft receives axial impact; Back-up ring moves to motor magnetite seat with motor shaft and touches, thereby makes that motor shaft stops to move, and prevents that motor internal is damaged.
Further; The minor axis end of the motor shaft of anti-axial impact force motor is provided with boss in the embodiment of the invention; Coil panel and boss injection moulding are fixed; Also be provided with stop tooth on the coil panel, thereby avoided when receiving axial impact, the mutual displacement between coil panel and the motor shaft, between coil and the coil panel and loosening.
In addition; The compression spring is installed in the bearing chamber of anti-axial impact force motor in the embodiment of the invention, and bearing can slide in bearing chamber, motor shaft is when receiving axial impact; The compression spring can impact power effectively cushion; The protection internal structure of motor, and make anti-axial impact force motor behind gas nail rifle nailing, can reset fast, thus solved the quick startup problem of gas nail rifle after penetrating iron nail.
Description of drawings
Fig. 1 is the sectional structure chart of the anti-axial impact force motor of the embodiment of the invention;
Fig. 2 is the partial enlarged drawing in zone 100 among Fig. 1;
Fig. 3 is the vertical view of motor shaft after fixing with coil panel of the embodiment of the invention;
Fig. 4 is the profile of Fig. 3 along the A-A direction;
Fig. 5 is the sectional structure chart of the anti-axial impact force motor of the embodiment of the invention.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the present invention is described further, but should limit protection scope of the present invention with this.
Referring to figs. 1 to Fig. 4, the anti-axial impact force motor of present embodiment comprises: motor shaft 1, back-up ring 2, clutch shaft bearing 3, motor magnetite seat 4, compression spring 5, magnetite 15, second bearing 14, coil panel 8, coil 7, commutator 16, carbon brush 9, carbon brush fixed axis 13, torsion spring 12, brush station 10, bonnet 11, electric machine casing 6.
Wherein, motor magnetite seat 4 is arranged at electric machine casing 6 inside, and motor magnetite seat 4 has endoporus, and motor shaft 1 passes this endoporus.Motor shaft 1 stretches out on the part of electric machine casing 6 and is fixed with back-up ring 2, and when motor shaft 1 received axial impact, back-up ring 2 moved as for 4 touchings of motor magnetite seat with motor shaft.
The two ends of motor magnetite seat 4 all have bearing chamber, wherein stretch out the clutch shaft bearing 3 that is provided with supporting motor axle 1 in the bearing chamber of a side of electric machine casing 6 near motor shaft 1, are provided with second bearing 14 of supporting motor axle 1 in the bearing chamber of opposite side.
As a preferred embodiment, back-up ring 2 comprises outer ring and inner ring, and wherein inner ring is fixed on the outer ring and towards the direction of clutch shaft bearing 3 and protrudes, and the diameter of inner ring is less than the diameter of outer ring.When motor shaft 1 received axial impact, inner ring promoted clutch shaft bearing 3 and in bearing chamber, slides, and touches until outer ring and motor magnetite seat 4.In other words, the diameter of inner ring is less than the external diameter of clutch shaft bearing 3, and the diameter of outer ring is greater than the external diameter of clutch shaft bearing 3, thereby motor shaft 1 is when being hit, and inner ring at first promotes clutch shaft bearing 3 and slides, and motor magnetite seat 4 is touched in the outer ring afterwards.
Back-up ring 2 can be various suitable fixed forms with the connected mode of motor shaft 1; Be preferably the welding again that is spirally connected earlier in the present embodiment; Promptly at first back-up ring 2 is screwed onto on the screw thread 101 on the motor shaft 1, and then welds, thereby solved the loosening and problem that comes off of back-up ring 2 when using repeatedly.
In the present embodiment, also be provided with the compression spring 5 that supports clutch shaft bearing 3 in the clutch shaft bearing 3 residing bearing chambers, when the inner ring of back-up ring 2 promoted clutch shaft bearing 3 slips, clutch shaft bearing 3 promotes compression should compression spring 5.In use, compression spring 5 can cushion the axial impact force that gas explosion produces, and can promote back-up ring 2 and separate with motor magnetite seat 4.
In addition, the minor axis end that is positioned at electric machine casing 6 of motor shaft 1 and coil panel 8 are fixing, and as a preferred embodiment, the minor axis end of this motor shaft 1 is provided with boss 102, and boss 102 is fixing with coil panel 8, and fixed form is preferably injection moulding and fixes.Can be provided with stop tooth on the coil panel 8, the coil 7 when avoiding motor shaft 1 to receive axial impact on the coil panel 8 is loosening.
Fig. 5 shows the cross-section structure of the gas nail rifle of present embodiment, anti-axial impact force electric machine structure wherein as stated, motor shaft 1 stretches out on the end of electric machine casing and is fixed with ventilating fan 20, this ventilating fan 20 is positioned at cavity 30.
Below in conjunction with Fig. 5 and Fig. 1 to Fig. 4 the gas nail rifle of present embodiment and the course of work of anti-axial impact force motor thereof are elaborated; When gas nail rifle uses; Gas is in cavity 30 implodes, and the blade of ventilating fan 20 is in the impulsive force that axially receives the A direction of motor shaft 1; The blade of ventilating fan 20 drives motor shaft 1 and moves to the A direction rapidly with back-up ring 2, and back-up ring 2 promotes clutch shaft bearing 3, and then extruding compression spring 5, when the outer ring of back-up ring 2 touches motor magnetite seat 4, stops to move.
Because back-up ring 2 receives the reaction force of motor magnetite seat 4, so back-up ring 2 need be very firm with the fixed form of motor shaft 1.Being preferably in the present embodiment is spirally connected adds the fixed form of welding, thereby has solved the loosening and problem that comes off of back-up ring 2 when using repeatedly.
Because rotor moves to the A direction rapidly after gas explosion; When back-up ring 2 touches motor magnetite seat 4; Produce relative pulling force owing to inertia between coil 7 and coil panel 8, coil panel 8 and the motor shaft 1, so the fixed form between coil 7 and coil panel 8, coil panel 8 and the motor shaft 1 need be very firm.In the present embodiment; Coil panel 8 is provided with 801 pairs of coils 7 of stop tooth and fixes; The minor axis end of motor shaft 1 is provided with boss 102; Coil panel 8 injection mouldings are fixed on the boss 102, thereby have solved coil 7 and coil panel 8, coil panel 8 and motor shaft 1 each other displacement and loosening problem when receiving axial impact force.
Because gas nail rifle in use; Need give ventilation and stirring in the cavity 30 fast after the gas explosion, need motor to move immediately, and the outer ring of back-up ring 2 contact at this moment with motor magnetite seat 4; Frictional force can cause the poor starting of motor, therefore needs back-up ring 2 to separate as early as possible with motor magnetite seat 4.In the present embodiment, compression spring 5 is installed in clutch shaft bearing 3 residing bearing chambers, when gas nail rifle uses, the axial force that produces after the gas explosion is played cushioning effect, the thrust that can also produce the B direction simultaneously promotes back-up ring 2 and separates with motor magnetite seat 4.
In addition, in the present embodiment, commutator 16 bottoms are arrived the distance of motor magnetite seat 4 end faces to the distance of carbon brush fixed axis 13 greater than back-up ring 4 (being specially the outer ring), thereby have guaranteed motor shaft 1 when receiving axial impact force, and commutator 16 is not damaged.
To sum up, the advantage of the gas of present embodiment nail rifle and motor thereof is following:
1, the back end design of the anti-axial impact force motor axle of present embodiment boss; Coil panel has designed stop tooth; Adopt the welding again that is spirally connected between back-up ring and the motor shaft, thereby when having solved motor and receiving axial impact force, the displacement of motor associated components and loosening problem;
2, laid the compression spring in the bearing chamber of the anti-axial impact force motor of present embodiment, and bearing can be free to slide, thereby solve gas nail rifle in use to the axial impact force of motor, the protection internal structure of motor.
3, laid the compression spring in the bearing chamber of the anti-axial impact force motor of present embodiment, motor can reset behind gas nail rifle nailing fast, thereby after having solved gas nail rifle ejaculation iron nail, the quick startup problem of gas nail rifle motor.Also solved gas nail rifle in addition after penetrating iron nail, the waste gas in the cavity is discharged and oxygen sucks problem.
Need to prove,, it will be appreciated by those skilled in the art that this anti-axial impact force motor also can be used for other proper domain, be not limited to gas nail rifle though the anti-axial impact force motor in the present embodiment is an example to be used for gas nail rifle.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (9)
1. anti-axial impact force motor comprises:
Electric machine casing;
Be positioned at the motor magnetite seat of said electric machine casing;
Motor shaft passes the endoporus of said motor magnetite seat;
It is characterized in that said motor shaft stretches out on the part of said electric machine casing and is fixed with back-up ring, when said motor shaft received axial impact, said back-up ring moved to said motor shaft and the touching of said motor magnetite seat.
2. anti-axial impact force motor according to claim 1; It is characterized in that; Said motor magnetite seat has bearing chamber in the side that said motor shaft stretches out said electric machine casing, is provided with the bearing of the said motor shaft of supporting in the said bearing chamber, and said back-up ring comprises the outer ring and is fixed on the inner ring that also protrudes towards said bearing direction on the said outer ring; The diameter of said inner ring is less than the diameter of said outer ring; When said motor shaft received axial impact, said inner ring promoted said bearing and in said bearing chamber, slides, to said outer ring and the touching of said motor magnetite seat.
3. anti-axial impact force motor according to claim 2 is characterized in that, also is provided with the compression spring that supports said bearing in the said bearing chamber, and when said inner ring promoted bearing, said bearing promoted the said compression spring of compression.
4. according to each described anti-axial impact force motor in the claim 1 to 3, it is characterized in that welding again after said back-up ring and said motor shaft are spirally connected.
5. anti-axial impact force motor according to claim 1 is characterized in that, the minor axis end of said motor shaft is provided with boss and fixes with coil panel, and said minor axis end is positioned at said electric machine casing.
6. anti-axial impact force motor according to claim 5 is characterized in that, fixes for injection moulding between said boss and the said coil panel.
7. according to claim 5 or 6 described anti-axial impact force motors, it is characterized in that said coil panel is provided with stop tooth, the coil when avoiding said motor shaft to receive axial impact on the said coil panel is loosening.
8. anti-axial impact force motor according to claim 1 is characterized in that, also comprises:
Commutator is fixed on the minor axis end of said motor shaft, and said minor axis end is positioned at said electric machine casing;
Carbon brush is fixed on the brush station through torsion spring and carbon brush fixed axis;
Said brush station is fixed on the said electric machine casing;
Wherein, the distance that arrives said carbon brush fixed axis bottom the said commutator is greater than the distance of said back-up ring to said motor magnetite seat end face.
9. gas nail rifle is characterized in that, comprises each described anti-axial impact force motor in the claim 1 to 8, and the motor shaft of said anti-axial impact force stretches out on the end of said electric machine casing and is fixed with ventilating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183066.XA CN102710057B (en) | 2012-06-05 | 2012-06-05 | Axial impact resisting motor and gas nailer including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183066.XA CN102710057B (en) | 2012-06-05 | 2012-06-05 | Axial impact resisting motor and gas nailer including same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102710057A true CN102710057A (en) | 2012-10-03 |
| CN102710057B CN102710057B (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210183066.XA Active CN102710057B (en) | 2012-06-05 | 2012-06-05 | Axial impact resisting motor and gas nailer including same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242594A (en) * | 2013-06-12 | 2014-12-24 | 日本电产三协株式会社 | Motor |
| CN104853882A (en) * | 2012-12-13 | 2015-08-19 | 喜利得股份公司 | Fastening tool with magnetic piston holder |
| CN105099055A (en) * | 2014-05-12 | 2015-11-25 | 上海燎慧机电科技有限公司 | Shock-resistant impact-resistant motor and gas nail shooter comprising the shock-resistant impact-resistant motor |
| CN107769442A (en) * | 2016-08-23 | 2018-03-06 | 南京腾亚精工科技有限公司 | Fan motor mounting structure of nail gun |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257420Y (en) * | 1995-04-01 | 1997-07-02 | 桂林市民生汽车电机厂 | DC electric motor |
| EP1311055A2 (en) * | 2001-11-08 | 2003-05-14 | Kabushiki Kaisha Moric | Starter for engine |
| CN201975907U (en) * | 2010-12-30 | 2011-09-14 | 天津祥和盛机电发展有限公司 | Electric motor for construction elevator |
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2012
- 2012-06-05 CN CN201210183066.XA patent/CN102710057B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2257420Y (en) * | 1995-04-01 | 1997-07-02 | 桂林市民生汽车电机厂 | DC electric motor |
| EP1311055A2 (en) * | 2001-11-08 | 2003-05-14 | Kabushiki Kaisha Moric | Starter for engine |
| CN201975907U (en) * | 2010-12-30 | 2011-09-14 | 天津祥和盛机电发展有限公司 | Electric motor for construction elevator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853882A (en) * | 2012-12-13 | 2015-08-19 | 喜利得股份公司 | Fastening tool with magnetic piston holder |
| CN104853882B (en) * | 2012-12-13 | 2016-10-26 | 喜利得股份公司 | There is the fastener-driving tools of magnetic piston keeper |
| CN104242594A (en) * | 2013-06-12 | 2014-12-24 | 日本电产三协株式会社 | Motor |
| CN105099055A (en) * | 2014-05-12 | 2015-11-25 | 上海燎慧机电科技有限公司 | Shock-resistant impact-resistant motor and gas nail shooter comprising the shock-resistant impact-resistant motor |
| CN107769442A (en) * | 2016-08-23 | 2018-03-06 | 南京腾亚精工科技有限公司 | Fan motor mounting structure of nail gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102710057B (en) | 2014-01-29 |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 201600, No. 368, No. 6, Xing Xing Road, Shanghai, Songjiang District Applicant after: Beilu Electromechanical (Shanghai) Co., Ltd. Address before: 201600, room 2, building 174, 515 West Zhongshan Road, Shanghai, Songjiang District Applicant before: Shanghai Beilu Electromechanical Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI BEILU ELECTROMECHANICAL CO., LTD. TO: BEILU ELECTROMECHANICAL (SHANGHAI) CO., LTD. |
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Effective date of registration: 20201109 Address after: 201613 Building 1 and 2, No.551, rongbei Road, Songjiang District, Shanghai Patentee after: Shanghai Mindong electromechanical Co.,Ltd. Address before: 201600, No. 368, No. 6, Xing Xing Road, Shanghai, Songjiang District Patentee before: SHANGHAI BEILU ELECTROMECHANICAL Co.,Ltd. |
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| TR01 | Transfer of patent right |