CN100584529C - Pneumatic sander - Google Patents
Pneumatic sander Download PDFInfo
- Publication number
- CN100584529C CN100584529C CN200810028011A CN200810028011A CN100584529C CN 100584529 C CN100584529 C CN 100584529C CN 200810028011 A CN200810028011 A CN 200810028011A CN 200810028011 A CN200810028011 A CN 200810028011A CN 100584529 C CN100584529 C CN 100584529C
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- China
- Prior art keywords
- retaining sleeve
- bearing
- air inlet
- open slot
- inlet head
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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 the grinding attachment technical field, be particularly related to Pneumatic sander, it includes shell, rotating shaft, the air inlet head, tail-hood, wind wheel, retaining sleeve and bearing, retaining sleeve is movable the connection with the outer ring of bearing, offer open slot on the retaining sleeve, the week of retaining sleeve upper surface is along being provided with ramp, be provided with the gland that can push retaining sleeve between retaining sleeve and the air inlet head, the inboard week of gland lower surface is along being provided with the last inclined surface that cooperates with ramp, during assembling, has the gap between the outer ring of retaining sleeve and bearing, bearing can relatively move with the clamping interplanting, and the rigging position of self-adjustable bearing and retaining sleeve makes bearing not bear axial force, and open slot makes retaining sleeve produce the radial contraction distortion when bearing radial pressure, retaining sleeve is fixed bearing, the assembling rear bearing does not bear axial force like this, and bearing is not easy to wear, long service life.
Description
Technical field:
The present invention relates to the grinding attachment technical field, particularly a kind of Pneumatic sander.
Background technology:
The processing and other fields of the burr reconditioning of mould manufacturing, the polishing of die cavity, hand work product all will be used to utilize usually has the Pneumatic sander of the air-flow of pressure as power.Existing Pneumatic sander includes shell, rotating shaft, air inlet head, tail-hood and skull, rotating shaft is arranged on enclosure, the lower end of rotating shaft connects bistrique, the air inlet head is arranged on the shell upper end, tail-hood is set in in a fit of anger, fixed cover is connected to two wind wheels in the rotating shaft, be provided with retaining sleeve between two wind wheels with the shell clamping, retaining sleeve is connected with rotating shaft by bearing, offer several arc ventilation slots on the wind wheel, offering the arcuate directions arc opposite with ventilation slot on the retaining sleeve changes the wind groove, and wind wheel is rotated, and rotates thereby drive rotating shaft; Because the retaining sleeve of this Pneumatic sander and the outer ring of bearing are for closely cooperating, the inner ring of bearing closely is socketed in the rotating shaft, be difficult to hold the rigging position of retaining sleeve and bearing during assembling, make bearing bear the dislocation of axial force even Internal and external cycle after the assembling easily and sustain damage, serious wear when causing using and damaging easily, service life is short, and is difficult to change during damage of bearings, safeguards inconvenient.
Summary of the invention:
The objective of the invention is to provide at the deficiencies in the prior art a kind of can self-adjustable bearing and the Pneumatic sander of retaining sleeve rigging position.
For achieving the above object, the present invention adopts following technical scheme:
Pneumatic sander, it includes shell, rotating shaft, air inlet head and tail lid, rotating shaft is arranged on enclosure, the air inlet head is arranged on the shell upper end, tail-hood is set in in a fit of anger, fixed cover is connected to two wind wheels in the rotating shaft, be provided with retaining sleeve between two wind wheels with the shell clamping, retaining sleeve is connected with rotating shaft by bearing, described retaining sleeve is movable the connection with the outer ring of bearing, offers the open slot that the radial elastic distortion can take place when being squeezed on the retaining sleeve, and the week of retaining sleeve upper surface is along being provided with ramp, be provided with the gland that can push retaining sleeve between retaining sleeve and the air inlet head, the inboard week of gland lower surface is along being provided with the last inclined surface that cooperates with ramp.
Be provided with cover plate and spring between described gland and the air inlet head, offer pore on the cover plate, the cover plate lower end is connected with gland, and the spring upper end is connected with the air inlet head, and its lower end is connected with the cover plate upper end.
The week of described retaining sleeve lower surface, enclosure was provided with the following inclined surface that cooperates with lower inclined plane along being provided with lower inclined plane.
Described tail-hood advances to offer in a fit of anger air admission hole and venthole by a jump ring and an air inlet clamping, offers the groove that is communicated with air admission hole and venthole on the tail-hood inwall.
Described outer casing bottom offers the radial hole of perforation, offers the through hole corresponding with radial hole in the rotating shaft.
Between described shell and the air inlet head, be equipped with sealing ring between tail-hood and the air inlet head.
Described open slot connects the upper surface and the lower surface of retaining sleeve.
Described open slot has two at least, and open slot is broken at least two sections with retaining sleeve.
Perhaps described open slot has two at least, wherein has at least the opening of an open slot to be positioned at the upper surface of retaining sleeve, has at least the opening of an open slot to be positioned at the lower surface of retaining sleeve.
Described open slot is four, and wherein the opening of two open slots is positioned at the upper surface of retaining sleeve, and the opening of two open slots is positioned at the lower surface of retaining sleeve, staggers mutually between the open slot of retaining sleeve upper surface and lower surface.
Beneficial effect of the present invention is: retaining sleeve of the present invention is movable the connection with the outer ring of bearing, offer the open slot that the radial elastic distortion can take place when being squeezed on the retaining sleeve, the week of retaining sleeve upper surface is along being provided with ramp, be provided with the gland that can push retaining sleeve between retaining sleeve and the air inlet head, the inboard week of gland lower surface is along being provided with the last inclined surface that cooperates with ramp, during assembling, has the gap between the outer ring of retaining sleeve and bearing, retaining sleeve connects and fixes in the enclosure, bearing can relatively move with the clamping interplanting, and the rigging position of self-adjustable bearing and retaining sleeve, make bearing not bear axial force, the air inlet head pushes gland then, the ramp of the last inclined surface press nip cover of gland, make retaining sleeve produce radial pressure, open slot makes retaining sleeve produce the radial contraction distortion when bearing radial pressure, and retaining sleeve is fixed bearing, assembles rear bearing like this and does not bear axial force, bearing is not easy to wear, long service life; When changing bearing, the air inlet head is split out, then the radial pressure of retaining sleeve disappears, and the distortion of retaining sleeve recovers, and becomes matched in clearance between itself and the bearing, can change bearing easily, and is easy to maintenance.
Secondly, be provided with cover plate and spring between gland and the air inlet head, offer pore on the cover plate, the cover plate lower end is connected with gland, and the spring upper end is connected with the air inlet head, and its lower end is connected with the cover plate upper end, spring can provide constant pressure for gland, and retaining sleeve can be held by the retaining clip mandrel.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a part section structural representation of the present invention;
Fig. 3 is a cutaway view of the present invention;
Fig. 4 is a decomposing schematic representation of the present invention;
Fig. 5 is the structural representation of retaining sleeve of the present invention;
Fig. 6 is the side view of retaining sleeve of the present invention;
Fig. 7 is the structural representation of the another kind of embodiment of retaining sleeve of the present invention;
Fig. 8 is the structural representation of another embodiment of retaining sleeve of the present invention.
The specific embodiment:
The present invention is further illustrated below in conjunction with accompanying drawing, see Fig. 1～4, Pneumatic sander, it includes shell 1, rotating shaft 2, air inlet 3 and tail-hood 4, rotating shaft 2 is arranged on shell 1 inside, air inlet 3 is arranged on shell 1 upper end, tail-hood 4 is set in the air inlet 3, fixed cover is connected to two wind wheels 5 in the rotating shaft 2, be provided with retaining sleeve 6 between two wind wheels 5 with shell 1 clamping, retaining sleeve 6 is connected with rotating shaft 2 by bearing 7, retaining sleeve 6 is movable the connection with the outer ring of bearing 7, offers the open slot 61 that the radial elastic distortion can take place when being squeezed on the retaining sleeve 6, and the week of retaining sleeve 6 upper surfaces is along being provided with ramp 62, be provided with the gland 8 that can push retaining sleeve 6 between retaining sleeve 6 and the air inlet 3, the inboard week of gland 8 lower surfaces is along being provided with the last inclined surface 81 that cooperates with ramp 62.Be provided with cover plate 9 and spring 10 between gland 8 and the air inlet 3, offer pore 91 on the cover plate 9, cover plate 9 lower ends are connected with gland 8, spring 10 upper ends are connected by pillar 14 and air inlet 3, its lower end is connected with cover plate 9 upper ends, spring 10 can provide constant pressure for gland 8, makes retaining sleeve 6 hold 7 by the retaining clip mandrel.The week of retaining sleeve 6 lower surfaces, shell 1 inside was provided with the following inclined surface 11 that cooperates with lower inclined plane 63 along being provided with lower inclined plane 63.
Tail-hood 4 is by jump ring 12 and air inlet 3 clamping, and is easy for installation.Offer air admission hole 31 and venthole 32 in the air inlet 3, offer the groove 41 that is communicated with air admission hole 31 and venthole 32 on tail-hood 4 inwalls, air inlet 3 air-flow that feed enter groove 41 from air admission hole 31, enter shell 1 inner chamber through venthole 32, can be by rotating tail-hood 4, groove 41 and air admission hole 31 and venthole 32 are staggered, and with air admission hole 31 and venthole 32 closures.Between shell 1 and the air inlet 3, be equipped with sealing ring 33 between tail-hood 4 and the air inlet 3.Shell 1 bottom offers the radial hole 13 of perforation, offers the through hole 21 corresponding with radial hole 13 in the rotating shaft 2.
See shown in Fig. 5,6 that open slot 61 connects the upper surface and the lower surface of retaining sleeve 6, retaining sleeve 6 forms C type structure.
As another kind of embodiment, to see shown in Figure 7ly, open slot 61 connects the upper surface and the lower surface of retaining sleeves 6, and open slot 61 has two at least, and open slot 61 is broken at least two sections with retaining sleeve 6.
As another embodiment, see shown in Figure 8, the open slot 61 of retaining sleeve 6 can also be the structure that does not connect the upper surface and the lower surface of retaining sleeve 6, open slot 61 has two at least, wherein have at least the opening of an open slot 61 to be positioned at the upper surface of retaining sleeve 6, have at least the opening of an open slot 61 to be positioned at the lower surface of retaining sleeve 6, the position between the open slot 61 forms flexure strip.In the present embodiment, open slot 61 is four, and wherein the opening of two open slots 61 is positioned at the upper surface of retaining sleeve 6, and the opening of two open slots 61 is positioned at the lower surface of retaining sleeve 6, staggers mutually between the open slot 61 of retaining sleeve 6 upper surfaces and lower surface.
During assembling, has the gap between the outer ring of retaining sleeve 6 and bearing 7, retaining sleeve 6 is fixed in the shell 1, bearing 7 can relatively move with retaining sleeve 6, and the rigging position of self-adjustable bearing 7 and retaining sleeve 6, make bearing 7 not bear axial force, air inlet 3 pairs of glands 8 push then, the ramp 62 of the last inclined surface 81 press nip cover 6 of gland 8 makes retaining sleeve 6 produce radial pressure, and open slot 61 makes retaining sleeve 6 produce the radial contraction distortion when bearing radial pressure, retaining sleeve 6 is fixed bearing 7, assembling rear bearing 7 does not bear axial force like this, and bearing 7 is not easy to wear, long service life; When changing bearing 7, air inlet 3 is split out, then the radial pressure of retaining sleeve 6 disappears, and the distortion of retaining sleeve 6 recovers, and becomes matched in clearance between itself and the bearing 7, can change bearing 7 easily, and is easy to maintenance.
The above only is preferred embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (10)
1, Pneumatic sander, it includes shell (1), rotating shaft (2), air inlet head (3) and tail-hood (4), rotating shaft (2) is arranged on shell (1) inside, air inlet head (3) is arranged on shell (1) upper end, tail-hood (4) is set on the air inlet head (3), rotating shaft (2) is gone up fixed cover and is connected to two wind wheels (5), be provided with retaining sleeve (6) between two wind wheels (5) with shell (1) clamping, retaining sleeve (6) is connected with rotating shaft (2) by bearing (7), it is characterized in that: described retaining sleeve (6) is movable the connection with the outer ring of bearing (7), offer the open slot (61) that the radial elastic distortion takes place when being squeezed on the retaining sleeve (6), the week of retaining sleeve (6) upper surface is along being provided with ramp (62), be provided with the gland (8) that retaining sleeve (6) is pushed between retaining sleeve (6) and the air inlet head (3), the inboard week of gland (8) lower surface is along being provided with the last inclined surface (81) that cooperates with ramp (62).
2, Pneumatic sander according to claim 1, it is characterized in that: be provided with cover plate (9) and spring (10) between described gland (8) and the air inlet head (3), offer pore (91) on the cover plate (9), cover plate (9) lower end is connected with gland (8), spring (10) upper end is connected with air inlet head (3), and its lower end is connected with cover plate (9) upper end.
3, Pneumatic sander according to claim 1 is characterized in that: the week of described retaining sleeve (6) lower surface, shell (1) inside was provided with the following inclined surface (11) that cooperates with lower inclined plane (63) along being provided with lower inclined plane (63).
4, Pneumatic sander according to claim 1, it is characterized in that: described tail-hood (4) is by jump ring (12) and air inlet head (3) clamping, offer air admission hole (31) and venthole (32) on the air inlet head (3), offer the groove (41) that is communicated with air admission hole (31) and venthole (32) on tail-hood (4) inwall.
5, Pneumatic sander according to claim 1 is characterized in that: described shell (1) bottom offers the radial hole (13) of perforation, offers the through hole (21) corresponding with radial hole (13) in the rotating shaft (2).
6, Pneumatic sander according to claim 1 is characterized in that: between described shell (1) and the air inlet head (3), be equipped with sealing ring (33) between tail-hood (4) and the air inlet head (3).
7, according to any described Pneumatic sander of claim 1-6, it is characterized in that: described open slot (61) connects the upper surface and the lower surface of retaining sleeve (6).
8, Pneumatic sander according to claim 7 is characterized in that: described open slot (61) has two at least, and open slot (61) is broken at least two sections with retaining sleeve (6).
9, according to any described Pneumatic sander of claim 1-6, it is characterized in that: described open slot (61) has two at least, wherein have at least the opening of an open slot (61) to be positioned at the upper surface of retaining sleeve (6), have at least the opening of an open slot (61) to be positioned at the lower surface of retaining sleeve (6).
10, Pneumatic sander according to claim 9, it is characterized in that: described open slot (61) is four, wherein the opening of two open slots (61) is positioned at the upper surface of retaining sleeve (6), the opening of two open slots (61) is positioned at the lower surface of retaining sleeve (6), staggers mutually between the open slot (61) of retaining sleeve (6) upper surface and lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810028011A CN100584529C (en) | 2008-05-13 | 2008-05-13 | Pneumatic sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810028011A CN100584529C (en) | 2008-05-13 | 2008-05-13 | Pneumatic sander |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101332581A CN101332581A (en) | 2008-12-31 |
| CN100584529C true CN100584529C (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810028011A Expired - Fee Related CN100584529C (en) | 2008-05-13 | 2008-05-13 | Pneumatic sander |
Country Status (1)
| Country | Link |
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| CN (1) | CN100584529C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767296B (en) * | 2010-01-28 | 2011-12-21 | 胡斌 | Main shaft recovery machine |
| CN102520188B (en) * | 2011-12-07 | 2014-01-15 | 吉林大学 | Intracellular protein detection method by flow cytometry |
| CN104227558B (en) * | 2014-09-30 | 2016-08-24 | 常州强德电机有限公司 | Polisher and grinding head Quick-disassembling mechanism and using method thereof |
| CN107498461B (en) * | 2017-09-26 | 2023-12-19 | 广州市锐恒科技有限公司 | High-efficient polishing grinds compound main shaft |
| CN108262686A (en) * | 2018-03-15 | 2018-07-10 | 湘潭大学 | A kind of pneumatic type Mold polishing grinding head device of adaptive posture adjustment |
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2008
- 2008-05-13 CN CN200810028011A patent/CN100584529C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101332581A (en) | 2008-12-31 |
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Granted publication date: 20100127 Termination date: 20150513 |
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