CN102152211B - Double-eccentric sanding mechanism of sanding machine - Google Patents
Double-eccentric sanding mechanism of sanding machine Download PDFInfo
- Publication number
- CN102152211B CN102152211B CN2011100301081A CN201110030108A CN102152211B CN 102152211 B CN102152211 B CN 102152211B CN 2011100301081 A CN2011100301081 A CN 2011100301081A CN 201110030108 A CN201110030108 A CN 201110030108A CN 102152211 B CN102152211 B CN 102152211B
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- Prior art keywords
- fan blade
- eccentric
- eccentric block
- bearing
- motor
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Abstract
The invention relates to a double-eccentric sanding mechanism of a sanding machine, comprising a motor (1), a fan blade (2), a flange (5) and a working bottom plate (10) with a grinding piece at the bottom surface, wherein the fan blade (2) is sheathed on a main shaft of the motor (1); the flange (5) is fixedly connected with the working bottom plate (10); the double-eccentric sanding mechanism further comprises an eccentric block (3) and a bearing (6); the eccentric block (3) is sheathed on the fan blade (2); the matching position of the fan blade (2) and the eccentric block (3) is provided with a stopping block (2-1) for stopping the rotation of the eccentric block (3); the flange (5) is in interference fit with the excircle of the bearing (6); the incircle of the bearing (6) is sheathed on the eccentric block (3) and is fixedly connected with the eccentric block (3); and the fan blade (2) is provided with an eccentric column (2-2) which is provided with a shaft hole matched with the main shaft of the motor (1). In the double-eccentric sanding mechanism, the swinging amplitude of the working bottom plate can be adjusted according to the requirements, so that the sanding efficiency of the sanding machine is greatly improved.
Description
Technical field
The present invention relates to the sander field, specifically, relate to a kind of two eccentric mechanism of sanding machine of sander.
Background technology
The working plate that has sand paper through the driven by motor working face during sander at present commonly used rotates, and workpiece is carried out sanding handle, and the shortcoming of this structure is that working plate cannot be regulated its amplitude of fluctuation, and its impulse stroke is little, at the bottom of the operating efficiency.Chinese patent CN201151080Y discloses a kind of sander, through excentric sleeve is set on motor shaft, makes working plate in rotary course, can also swing.But the amplitude of this structure swing is unadjustable, and operating efficiency improves limited.
Summary of the invention
The two eccentric mechanism of sanding machine that the purpose of this invention is to provide a kind of working plate amplitude of fluctuation scalable, sander that sanding efficient is high.
The technical scheme that realizes above-mentioned purpose is: a kind of two eccentric mechanism of sanding machine of sander; Comprise that motor, fan blade, flange and bottom surface have the working plate of frosted part; Fan blade is sleeved on the main shaft of motor, and flange is fixedly connected with working plate, also comprises eccentric block and bearing; Eccentric block is sleeved on the fan blade; And the cooperation place of fan blade and eccentric block is provided with the block that stops the eccentric block rotation, the outer ring interference fit of flange and bearing, and the inner ring of bearing is enclosed within on the eccentric block and with eccentric block and is fixedly connected; Have biasing post on the fan blade, have the axis hole that cooperates with the main shaft of motor on this biasing post.
Be fixed with plain washer through screw on the end face of electric machine main shaft, plain washer props up the lower surface of fan blade, and the external diameter of plain washer is greater than the external diameter of fan blade lower surface.
Be provided with the Boping pad between the upper end of bearing and the flange, the junction of bearing lower end and eccentric block is provided with split washer.
After adopting technique scheme, the biasing post that cooperates with electric machine main shaft on the fan blade has off-centre, adds the eccentric block that overlaps on the fan blade biasing post; Formed an adjustable double eccentric structure, when motor just changeed, it is maximum that the offset of eccentric block reaches; During the motor counter-rotating, it is minimum that the off-centre of eccentric block reaches, and just secondary is eccentric; The amplitude of fluctuation that can regulate working plate through this eccentric structure, thereby the sanding effect that can regulate sander as required.
Description of drawings
Fig. 1 is a sectional structure sketch map of the present invention;
Fig. 2 is the structural representation of fan blade of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the front view of eccentric block of the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the rearview of Fig. 4;
Fig. 7 is the fiting relation figure of eccentric block of the present invention and fan blade;
Fig. 8 rotates to the state diagram of another position for eccentric block among Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Shown in Fig. 1 ~ 8; A kind of two eccentric mechanism of sanding machine of sander comprises that motor 1, fan blade 2, flange 5 and bottom surface have the working plate 10 of frosted part, and fan blade 2 is sleeved on the main shaft of motor 1; Flange 5 is fixedly connected with working plate 10; Also comprise eccentric block 3 and bearing 6, eccentric block 3 is sleeved on the fan blade 2, and the cooperation place of fan blade 2 and eccentric block 3 is provided with the block 2-1 that stops eccentric block 3 rotations; The outer ring interference fit of flange 5 and bearing 6, the inner ring of bearing 6 is enclosed within on the eccentric block 3 and with eccentric block 3 and is fixedly connected; Have biasing post 2-2 on the fan blade 2, have the axis hole that cooperates with the main shaft of motor 1 on this biasing post 2-2.
As shown in Figure 1, be fixed with plain washer 8 through screw 9 on the end face of motor 1 main shaft, plain washer 8 props up the lower surface of fan blade 2, and the external diameter of plain washer 8 is greater than the external diameter of fan blade 2 lower surfaces.Through being set, the eccentric block 3 that plain washer 8 can prevent to be enclosed within on the fan blade 2 comes off.
As shown in Figure 1, be provided with Boping pad 4 between the upper end of bearing 6 and the flange 5, the junction of bearing 6 lower ends and eccentric block 3 is provided with split washer 7.
Operation principle of the present invention is following: motor 1 rotates; The fan blade 2 that drive is enclosed within on motor 2 main shafts rotates, and fan blade 2 drives the eccentric block 3 that is enclosed within fan blade 2 and rotates, and is rotated through bearing 6 drive flanges 5 by eccentric block 3; Flange 5 drives the working plate 10 that is fixedly connected with it and rotates; The excircle eccentricity axle of the axis hole through fan blade 2 and the effect of eccentric block 3, make working plate 10 work the time can regulate amplitude of fluctuation, thereby regulate the sanding effect of sander as required.
Claims (3)
1. the two eccentric mechanism of sanding machine of a sander; Comprise that motor (1), fan blade (2), flange (5) and bottom surface have the working plate (10) of frosted part; Fan blade (2) is sleeved on the main shaft of motor (1), and flange (5) is fixedly connected with working plate (10), it is characterized in that: also comprise eccentric block (3) and bearing (6); Eccentric block (3) is sleeved on the fan blade (2); And fan blade (2) is provided with the block (2-1) that stops eccentric block (3) rotation with the cooperation place of eccentric block (3), the outer ring interference fit of flange (5) and bearing (6), and the inner ring of bearing (6) is enclosed within eccentric block (3) and goes up and be fixedly connected with eccentric block (3); Have biasing post (2-2) on the fan blade (2), have the axis hole that cooperates with the main shaft of motor (1) on this biasing post (2-2).
2. the two eccentric mechanism of sanding machine of sander according to claim 1; It is characterized in that: be fixed with plain washer (8) through screw (9) on the end face of motor (1) main shaft; Plain washer (8) props up the lower surface of fan blade (2), and the external diameter of plain washer (8) is greater than the external diameter of fan blade (2) lower surface.
3. the two eccentric mechanism of sanding machine of sander according to claim 1 and 2; It is characterized in that: be provided with Boping pad (4) between the upper end of bearing (6) and the flange (5), the junction of bearing (6) lower end and eccentric block (3) is provided with split washer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100301081A CN102152211B (en) | 2011-01-28 | 2011-01-28 | Double-eccentric sanding mechanism of sanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100301081A CN102152211B (en) | 2011-01-28 | 2011-01-28 | Double-eccentric sanding mechanism of sanding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102152211A CN102152211A (en) | 2011-08-17 |
| CN102152211B true CN102152211B (en) | 2012-05-23 |
Family
ID=44434048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100301081A Expired - Fee Related CN102152211B (en) | 2011-01-28 | 2011-01-28 | Double-eccentric sanding mechanism of sanding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102152211B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275630A (en) * | 2013-07-12 | 2015-01-14 | 南京德朔实业有限公司 | Handheld sanding machine |
| US11592055B2 (en) * | 2018-08-30 | 2023-02-28 | Lake Country Tool, Llc | Adjustable stroke device with cam |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631826A1 (en) * | 1975-09-10 | 1977-03-24 | Chamber Of Mines Services Ltd | CENTRIFUGAL MILL |
| JPH04135161A (en) * | 1990-09-21 | 1992-05-08 | Ietatsu Ono | Polishing method and device thereof |
| CN2714155Y (en) * | 2004-08-10 | 2005-08-03 | 王绍华 | Vibrating grinder with multiple grinding cylinders and exciting devices |
| CN201151080Y (en) * | 2007-12-30 | 2008-11-19 | 常州市英杰工具有限公司 | Sander |
| CN201998023U (en) * | 2011-01-28 | 2011-10-05 | 常州合力电器有限公司 | Double-eccentric sanding mechanism of sander |
-
2011
- 2011-01-28 CN CN2011100301081A patent/CN102152211B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102152211A (en) | 2011-08-17 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150128 |
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| EXPY | Termination of patent right or utility model |