CN101380731B - Pneumatic tool with wear resistance - Google Patents
Pneumatic tool with wear resistance Download PDFInfo
- Publication number
- CN101380731B CN101380731B CN 200710145863 CN200710145863A CN101380731B CN 101380731 B CN101380731 B CN 101380731B CN 200710145863 CN200710145863 CN 200710145863 CN 200710145863 A CN200710145863 A CN 200710145863A CN 101380731 B CN101380731 B CN 101380731B
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- Prior art keywords
- rotor
- axle center
- bearing
- pad
- perforation
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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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Abstract
The present invention relates to a pneumatic tool with wearing resistance. The pneumatic tool comprises a rotor penetrating a cylinder, two gaskets which respectively covers at the two sides of the cylinder and two external cover components which respectively comprise an external cover and a bearing to ensure that the external cover covers over the gaskets, and the axle center of the rotor penetrates a punch hole and penetrates the bearing, wherein, the axle center of the rotor penetrates a jacket, the jacket is arranged in the punch holes of the gaskets and the punch hole of the external cover, one end of the jacket presses and resists against the bearing, and the other end is exposed at the gaskets convexly to press and resist against the body of the rotor, so as to keep the distance between the rotor and the gaskets.
Description
Technical field
The present invention relates to a kind of pneumatic tool, be meant a kind of pneumatic tool of tool wearability especially, can increase service life.
Background technology
With reference to Fig. 1, be existing air tool generalized section.Existing pneumatic tool includes a cylinder 91, inside is provided with a rotor 92, the front end of cylinder 91 covers with a pad 93, pad 93 outer and cylinder 91 other ends, cover with a lid 94 respectively, be respectively equipped with a bearing 95 between two lids 94 and the rotor 92, in rotor 92 is limited in cylinder 91, when rotor 92 rotated, cylinder 91, pad 93 did not rotate with lid 94.
Above-mentioned pneumatic tool exists a disappearance, pneumatic tool tends to break away from perfect condition work, when bearing and rotor tight fit, in assembling process, can reach desirable requirement by lid and gap between rotor with anchor clamps, but during owing to tool work, can produce strong wallop, will certainly produce reaction force at rotor, thereby cause rotor in cylinder group, to move axially, and destroyed original perfect condition, because the effect of air pressure can make rotor move forward, make rotor be close to lid simultaneously, cause coefficient of friction to strengthen, the phenomenon of rotor dieback lid might take place, thereby very easily cause lid and rotor scratch, the gap that will set originally all is left between another lid and the rotor simultaneously, make the gap that exists between the lid at rear and the rotor can produce gas leakage, allow function reduction.
In addition when bearing and rotor loose fit, also can be because of the powerful impulsive force of instrument generation when working, add the effect of air pressure, allow rotor disorderly shake front and back, general rotor easily forwards or the rear move, though be unlikely to take place rotor dieback lid, and the cover end face wearing and tearing accelerated, cause function reduction equally.
Because rotor produces mutual friction mutually with lid easily, and pneumatic tool is generated heat easily, and because excessive friction, and produce serious abrasion condition, further cause air tool cylinder assembly to lose efficacy in advance.
The inventor wishes to rely on the present invention in line with the experience of being engaged in pneumatic tool design for many years, and the problem that can get rid of or alleviate Prior Art at least and met with.
Summary of the invention
At the deficiencies in the prior art, the objective of the invention is to: a kind of pneumatic tool of tool wearability is provided, solves existing pneumatic tool because rotor and lid mutual friction mutually the heating phenomenon take place and produce heavy wear, the problem that allows cylinder assembly lose efficacy.
For achieving the above object, the technical solution used in the present invention is:
A kind of pneumatic tool of tool wearability, it includes:
One rotor comprises a body and the axle center of being extended by described body both sides;
One cylinder comprises that one holds the hole, and the body of described rotor is contained in the hole, and the diaxon cardiac prominence is exposed to outside the cylinder;
Two pads cover respectively in the cylinder both sides, and two pads also are respectively equipped with a perforation, make rotor axis be passed by perforation;
Two outer cap assemblies comprise an enclosing cover and a bearing respectively, describedly outer are covered with a perforation, make enclosing cover cover pad, and make rotor axis pass perforation and pass at described bearing, it is characterized in that:
One sheath is sheathed on the axle center of described rotor, when described axle center is extended through sheath and bearing, deviate from fixture restriction bearing, and fixing shaft core position, described sheath is contained in the perforation of described pad perforation and described enclosing cover, described sheath one end is compressing described bearing, the other end is protruding to be exposed to described pad, and be pressed against on the body of described rotor, keep the distance between rotor and the pad, described axle center end face axial is provided with a screwed hole, and described fixture is made as a bolt, also is provided with a back-up ring between described bolt and the described axle center simultaneously, described back-up ring can limit described bearing and not deviate from, described bolt screw lock and can be adjusted the screw lock degree of depth in described screwed hole, the distance between control rotor and the pad.Can summarize the present invention with regard to the above and have following advantage:
1. the pneumatic tool of tool wearability of the present invention, wherein the present invention is provided with sheath, can control the gap between rotor and the pad really.
2. the pneumatic tool of tool wearability of the present invention, the protruding bearing that is exposed to of its rotor with fixture location rotor, can adopt V-type packing ring or back-up ring that rotor and fixture are kept at a distance.
3. the pneumatic tool of tool wearability of the present invention, utilization wherein of the present invention can keep the gap of rotor and pad really, and reaches job stability, raising pneumatic tool life-span and operating efficiency.
Description of drawings
Fig. 1: be existing air tool generalized section;
Fig. 2: be the pneumatic tool first embodiment stereo appearance figure of tool wearability of the present invention;
Fig. 3: be the three-dimensional exploded view of pneumatic tool first embodiment of tool wearability of the present invention;
Fig. 4: for the present invention by the cutaway view that Fig. 2 got, show air tool schematic internal view;
Fig. 5: be the pneumatic tool second embodiment three-dimensional exploded view of tool wearability of the present invention;
Fig. 6: be the continuity of Fig. 5 of the present invention, show air tool schematic internal view.
Description of reference numerals: 91-cylinder; The 92-rotor; The 93-pad; The 94-lid; The 95-bearing; The 10-cylinder; 11-holds the hole; The 12-fixed part; The 13-fixing hole; The 14-pin; The 15-pore; The 20-rotor; The 21-body; The 22-axle center; The 23-sheath; The 24-circular groove; 24 '-screwed hole; The 25-groove; 26-blade 27-V type packing ring; 27 '-back-up ring; 271 '-holding part; 272 '-hole; The 28-fixture; 28 '-fixture; 29 '-packing ring; The 30-pad; The 31-perforation; The 32-air admission hole; The 33-fixed part; The 34-fixing hole; The outer cap assemblies of 40-; The 41-enclosing cover; 411-cover portion; 412-bearing holding part; The 413-perforation; The 414-fixed part; The 415-fixing hole; The 42-bearing.
The specific embodiment
With reference to Fig. 2 and Fig. 3, be stereo appearance figure and the three-dimensional exploded view of tool wearability pneumatic tool first embodiment of the present invention.The pneumatic tool of tool wearability of the present invention includes a cylinder 10, a rotor 20, two pads 30 and two outer cap assemblies 40.
Two pads 30 are laminar, are respectively equipped with a perforation 31, just can be nested with respectively in rotor 20 axle center 22, with the sheath 23 in rotor 20 axle center 22.Two air admission holes 32 are offered around perforation 31, one fixed part 33 is located at an end of pad 30, and be provided with at least one fixing hole 34, the fixed part 33 of pad 30 is corresponding to the fixed part 12 of cylinder 10, and fixing hole 34 is corresponding to fixing hole 13, and sells 14 and be through above-mentioned two fixing holes 34,13 simultaneously, pad 30 is combined in cylinder 10, pad 30 is resisted against cylinder 10 both sides end faces, and the appearance hole 11 of sealing cylinder 10, and rotor 20 is limited in the appearance hole 11 of cylinder 10.
Two outer cap assemblies 40 comprise an enclosing cover 41 and a bearing 42 respectively.The outer peripheral face of enclosing cover 41 1 sides extends and forms a cover portion 411, opposite side extends a bearing holding part 412 by end face, one perforation, 413 axial penetration are at enclosing cover 41, and the end in cover portion 411 is provided with a fixed part 414 simultaneously, and comprises a fixing hole 415 at least.
The cover portion 411 of two enclosing covers 41 is nested with pad 30 respectively, and is overlapping a side of cylinder 10, and the part coating cylinder 10, and the perforation 413 of an enclosing cover 41 wherein is being nested with rotor 20 axle center 22, and the perforation 413 of another enclosing cover 41 is being nested with sheath 23.The bearing holding part 412 of two enclosing covers 41 is limited in bearing 42 wherein and makes axle center 22 to pass bearing 42.Simultaneously fixing hole 415,34,13 is corresponding mutually, and sell 14 pass fixing.Be provided with a side of sheath 23, a V-type packing ring 27 is passed in axle center 22, and a fixture 28 is combined in axle center 22, and restriction bearing 42 is not deviate from, and fixing 22 positions, axle center, and wherein fixture 28 is made as C type fastener, be located in the circular groove 24 in axle center 22.
With reference to Fig. 4, for the present invention by the cutaway view that Fig. 2 got, show air tool schematic internal view.Between the enclosing cover 41 and bearing 42 of rotor 20 and outer cap assemblies 40, because be provided with sheath 23 and V-type packing ring 27, allow rotor 20 be fixed on the fixed position, and can control rotor 20 and rotate the time with the relative displacement of cylinder 10 generations, controlled the body 21 of rotor 20 and the gap between the pad 30 simultaneously.Wherein, the length of sheath 23 adds the degree of depth of the perforation 413 of enclosing cover 41 greater than the thickness of pad 30, in the time of in sheath 23 is contained in pad 30 and enclosing cover 41 perforation 413, sheath 23 1 ends are compressed by bearing 42, therefore sheath 23 other ends are protruding is exposed to outside the pad 30, and is pressed on the wall of rotor 20 bodies 21.For not being provided with sheath 23 1 ends, gap between rotor 20 bodies 21 and the pad 30 also is under control, and allows pneumatic tool can possess optimum state when work, has guaranteed the stability when cylinder 10 is worked with rotor 20 simultaneously, improve service life, and promote operating efficiency.
With reference to Fig. 5 and Fig. 6, be the three-dimensional exploded view and the generalized section of second embodiment of the invention.The otherness of the present embodiment and first embodiment is, present embodiment is replaced with fixture 28 the V-type packing ring 27 of first embodiment by back-up ring 27 ' and the fixture 28 ' that is embodied as bolt, its guide ring 27 ' one side forms a holding part 271 ', and opposite side is provided with an axial hole 272 ' and is communicated with at holding part 271 '.Also be provided with a packing ring 29 ' between fixture 28 ' and axle center 22, axle center 22 1 ends are provided with a screwed hole 24 ' in end face axial.
The axle center 22 of rotor 20 1 sides is stretched through by sheath 23, bearing 42, and is contained in the holding part 271 ' of back-up ring 27 ', the fixture 28 ' that is made as bolt pass the hole 272 ' of packing ring 29 ', back-up ring 27 ' and screw lock in the screwed hole 24 ' in axle center 22.
During use, utilize the distance that is made as the fixture 28 ' of bolt and can be easy to adjust rotor 20 and pad 30, again because be provided with sheath 23, guarantee that rotor 20 does not directly contact with pad 30 simultaneously.
The pneumatic tool of tool wearability of the present invention is to utilize in rotor one side, make the axle center be extended through a sheath earlier, be extended through bearing again, and being extended through pad, sheath also covers outward with enclosing cover, make sheath force rotor directly not contact and control distance between rotor and the enclosing cover really, also guaranteed the distance between the enclosing cover of rotor and opposite side simultaneously, the stability when promoting pneumatic tool and working with pad, and service life, and promoted operating efficiency.
More than explanation is just illustrative for the purpose of the present invention, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present invention.
Claims (2)
1. the pneumatic tool of a tool wearability, it includes:
One rotor comprises a body and the axle center of being extended by described body both sides;
One cylinder comprises that one holds the hole, and the body of described rotor is contained in the hole, and the diaxon cardiac prominence is exposed to outside the cylinder;
Two pads cover respectively in the cylinder both sides, and two pads also are respectively equipped with a perforation, make rotor axis be passed by perforation;
Two outer cap assemblies comprise an enclosing cover and a bearing respectively, describedly outer are covered with a perforation, make enclosing cover cover pad, and make rotor axis pass perforation and pass at described bearing, it is characterized in that:
One sheath is sheathed on the axle center of described rotor, when described axle center is extended through sheath and bearing, deviate from fixture restriction bearing, and fixing shaft core position, described sheath is contained in the perforation of described pad perforation and described enclosing cover, described sheath one end is compressing described bearing, the other end is protruding to be exposed to described pad, and be pressed against on the body of described rotor, keep the distance between rotor and the pad, described axle center end face axial is provided with a screwed hole, and described fixture is made as a bolt, also is provided with a back-up ring between described bolt and the described axle center simultaneously, described back-up ring can limit described bearing and not deviate from, described bolt screw lock and can be adjusted the screw lock degree of depth in described screwed hole, the distance between control rotor and the pad.
2. the pneumatic tool of tool wearability according to claim 1, it is characterized in that: described back-up ring one side is provided with a holding part, opposite side is provided with a hole, wherein said holding part communicates with described hole, on the sheathed described axle center of described holding part, described hole stretches through screw lock on described axle center for fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710145863 CN101380731B (en) | 2007-09-04 | 2007-09-04 | Pneumatic tool with wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710145863 CN101380731B (en) | 2007-09-04 | 2007-09-04 | Pneumatic tool with wear resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101380731A CN101380731A (en) | 2009-03-11 |
| CN101380731B true CN101380731B (en) | 2010-09-29 |
Family
ID=40460876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710145863 Expired - Fee Related CN101380731B (en) | 2007-09-04 | 2007-09-04 | Pneumatic tool with wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101380731B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837299A (en) * | 2011-06-21 | 2012-12-26 | 宁波飞驹工具有限公司 | Fixed and movable protection structure of pneumatic tool engine unit |
| CN204532437U (en) * | 2014-12-31 | 2015-08-05 | 苏州益诺斯医疗科技有限公司 | Integral type axle center pneumatic motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1714747A1 (en) * | 2004-02-09 | 2006-10-25 | Max Co., Ltd. | End cap of compressed air tool |
| CN1880726A (en) * | 2005-06-17 | 2006-12-20 | 镁迪企业股份有限公司 | Improved pneumatic tool motor |
| CN2897564Y (en) * | 2006-02-15 | 2007-05-09 | 圣丰气动股份有限公司 | Pneumatic tool with pressure-stabilizing torsion limitation |
| CN101004218A (en) * | 2006-01-20 | 2007-07-25 | 镁迪企业股份有限公司 | Modified cylinder structure of pneumatic tool |
-
2007
- 2007-09-04 CN CN 200710145863 patent/CN101380731B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1714747A1 (en) * | 2004-02-09 | 2006-10-25 | Max Co., Ltd. | End cap of compressed air tool |
| CN1880726A (en) * | 2005-06-17 | 2006-12-20 | 镁迪企业股份有限公司 | Improved pneumatic tool motor |
| CN101004218A (en) * | 2006-01-20 | 2007-07-25 | 镁迪企业股份有限公司 | Modified cylinder structure of pneumatic tool |
| CN2897564Y (en) * | 2006-02-15 | 2007-05-09 | 圣丰气动股份有限公司 | Pneumatic tool with pressure-stabilizing torsion limitation |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-216317A 2007.08.30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101380731A (en) | 2009-03-11 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20160904 |