CN220408370U - Grinder dustproof mechanism and grinder - Google Patents
Grinder dustproof mechanism and grinder Download PDFInfo
- Publication number
- CN220408370U CN220408370U CN202321657380.7U CN202321657380U CN220408370U CN 220408370 U CN220408370 U CN 220408370U CN 202321657380 U CN202321657380 U CN 202321657380U CN 220408370 U CN220408370 U CN 220408370U
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- Prior art keywords
- eccentric
- dust
- sander
- bearing
- bottom plate
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- 239000000428 dust Substances 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model belongs to the technical field of electric tools, and particularly relates to a dust-proof mechanism of a sander and the sander, which comprises the following components: a dust cover and a bearing chamber arranged on the bottom plate; wherein the bearing chamber is adapted to receive a floor bearing; the top of the bearing chamber is matched with the dust cover in a concave-convex manner to form a closed space for placing the bottom plate bearing; the top of the bearing chamber is matched with the dust cover in a concave-convex mode to form a closed space, so that the effect of preventing dust from entering the bearing is achieved, and the service life of the machine is prolonged.
Description
Technical Field
The utility model belongs to the technical field of electric tools, and particularly relates to a dust-proof mechanism of a sander and the sander.
Background
Most of sanding machines on the market at present are of an eccentric integrated structure of an aluminum fan blade, a bearing is pressed on the aluminum fan blade, and the bearing is pressed on a bottom plate to drive the bottom plate to swing so as to realize polishing operation.
The grinder can produce the tiny and fine and smooth dust of granule when polishing, and the dust can get into in the bottom plate bearing and mix with the grease in the bearing, leads to the grease in the bearing to play lubricating action to because the entering of dust can increase frictional force, a series of problems such as melting bottom plate and bearing and dying appear in the rising of bearing temperature.
Therefore, in order to solve the problem that dust enters the bottom plate bearing, it is necessary to provide a dust-proof mechanism of a sander and the sander.
Disclosure of Invention
The utility model aims to provide a dust-proof mechanism of a sander and the sander, which are used for solving the technical problem that dust enters a bottom plate bearing.
In order to solve the technical problem, the utility model provides a dust-proof mechanism of a sander, comprising:
a dust cover and a bearing chamber arranged on the bottom plate; wherein the method comprises the steps of
The bearing chamber is adapted to receive a floor bearing; and
the top of the bearing chamber is matched with the dust cover in a concave-convex mode to form a closed space for placing the bottom plate bearing.
Further, an eccentric seat is arranged in the bearing chamber; wherein the method comprises the steps of
The eccentric seat penetrates through the dust cover; and
the outer round end of the eccentric seat is provided with a pressing block part;
the briquetting portion is suitable for limiting the upper surface of the dust cover when the dust cover is matched with the bearing chamber.
Further, a bottom plate bearing is arranged in the bearing chamber; wherein the method comprises the steps of
The bottom plate bearing is completely arranged in the closed space;
the lower outer circle end of the eccentric seat is arranged in the bottom plate bearing.
Further, the dust cover includes: a convex portion and a concave portion; wherein the method comprises the steps of
The convex part corresponds to the outer ring of the bottom plate bearing and is not contacted with the outer ring of the bottom plate bearing; and
the concave part corresponds to the inner ring of the bottom plate bearing and is contacted with the inner ring of the bottom plate bearing.
Further, an eccentric fan blade is arranged above the eccentric seat; wherein the method comprises the steps of
And a balance block mounting position is arranged on the lower surface of the eccentric fan blade.
Further, a balancing block is arranged at the outer circle end of the eccentric seat; wherein the method comprises the steps of
The balance weight is arranged on the pressing block part;
the balance weight is used for balancing the rotation of the eccentric seat and the eccentric fan blade.
In another aspect, the present utility model also provides a sander, comprising:
the shell and the sander dustproof mechanism; wherein the method comprises the steps of
The dustproof structure of the sander is arranged in the shell.
Further, an eccentric motor shaft is arranged in the shell; wherein the method comprises the steps of
The eccentric motor shaft is matched with the eccentric seat and the eccentric fan blade in shape so as to drive the eccentric seat and the eccentric fan blade to rotate.
Further, a dust collecting cover is arranged in the shell; wherein the method comprises the steps of
The dust collection cover covers the eccentric fan blades and is not contacted with the eccentric fan blades.
Further, a dust collection box communicated with the dust collection cover is arranged on the side face of the shell.
The utility model has the beneficial effects that the dust cover and the bearing chamber arranged on the bottom plate are adopted; the top of the bearing chamber is matched with the dust cover in a concave-convex mode to form a closed space, so that the effect of preventing dust from entering the bearing is achieved, and the service life of the machine is prolonged.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a preferred embodiment of the dust control mechanism of the present utility model;
FIG. 2 is a cross-sectional view of a preferred embodiment of the dust control mechanism of the present utility model;
FIG. 3 is an exploded view of a preferred embodiment of the sander of the present utility model;
fig. 4 is a cross-sectional view of a preferred embodiment of the sander of the present utility model.
In the figure:
the dust collection device comprises a bottom plate 1, a dust cover 2, a protruding part 21, a concave part 22, an eccentric seat 3, a pressing block part 31, a bearing chamber 4, a bottom plate bearing 5, eccentric fan blades 6, a balance weight 7, a machine shell 8, an eccentric motor shaft 9, a dust collection cover 10 and a dust collection box 11.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2, this embodiment provides a dust-proof mechanism of a sanding machine, including:
a dust cover 2 and a bearing chamber 4 arranged on the bottom plate 1; wherein the bearing housing 4 is adapted to accommodate a floor bearing 5; the top of the bearing chamber 4 is matched with the dust cover 2 in a concave-convex way to form a closed space for placing the bottom plate bearing 5; wherein the base plate 1 and the bearing chamber 4 are fixedly connected most preferably; the dust cover 2 is made of rubber materials; the bearing chamber 4 for installing the bearing is covered by the dust cover 2, so that a closed space is formed, dust is prevented from entering the bearing, and normal rotation of the bearing is influenced.
In the present embodiment, as shown in fig. 1 and 2, an eccentric seat 3 is provided in the bearing chamber 4; wherein the eccentric seat 3 penetrates the dust cover 2; and the outer round end of the eccentric seat 3 is provided with a pressing block part 31; the pressing block part 31 is suitable for limiting the upper surface of the dust cover 2 when the dust cover 2 is matched with the bearing chamber 4; wherein through setting up briquetting portion 31 to the upper surface spacing of dust cover 2 to reach and prevent that dust cover 2 from breaking away from bearing room 4, in order to lead to the dust to get into bearing room 4, influence bearing pivoted effect.
As shown in fig. 1 and 2, in this embodiment, a bottom plate bearing 5 is disposed in the bearing chamber 4; wherein the bottom plate bearing 5 is completely arranged in the closed space; the lower outer circle end of the eccentric seat 3 is arranged in the bottom plate bearing 5; wherein the eccentric seat 3 and the bottom plate bearing 5 are most preferably in interference fit.
As shown in fig. 1 and 2, in the present embodiment, the dust cover 2 includes: a convex portion 21 and a concave portion 22; wherein the boss 21 corresponds to the outer ring of the floor bearing 5 and is not in contact with the outer ring of the floor bearing 5; the concave part 22 corresponds to the inner ring of the bottom plate bearing 5 and is contacted with the inner ring of the bottom plate bearing 5; by not contacting the protruding portion 21 with the outer ring of the floor bearing 5 and contacting the recessed portion 22 with the inner ring of the floor bearing 5, the dust cover 2 is prevented from contacting the inner ring and the outer ring of the floor bearing 5 at the same time, and normal rotation of the floor bearing 5 is affected.
In this embodiment, an eccentric fan blade 6 is disposed above the eccentric seat 3; wherein the lower surface of the eccentric fan blade 6 is provided with a balance weight installation position.
In the present embodiment, as shown in fig. 2, the outer circumferential end of the eccentric seat 3 is provided with a balance weight 7; wherein the balance weight 7 is arranged on the pressing block part 31; the balance block 7 is used for balancing the rotation of the eccentric seat 3 and the eccentric fan blade 6; wherein the eccentric seat 3 and the balance weight 7 are most preferably in interference fit.
On the other hand, as shown in fig. 3 and 4, this embodiment further provides a sanding machine, including:
a shell 8 and the dust-proof mechanism of the sander; wherein the sander dust-proof structure is arranged in the casing 8.
In the present embodiment, as shown in fig. 4, an eccentric motor shaft 9 is provided in the housing 8; wherein the eccentric motor shaft 9 is matched with the eccentric seat 3 and the eccentric fan blade 6 in shape so as to drive the eccentric seat 3 and the eccentric fan blade 6 to rotate; the eccentric motor shaft 9 is most preferably in clearance fit with the eccentric seat 3 and the eccentric fan blade 6, so as to prevent slipping when the eccentric seat 3 and the eccentric fan blade 6 are driven to rotate.
In this embodiment, a dust hood 10 is disposed in the housing 8; wherein the dust collecting cover 10 covers the eccentric fan blade 6 and is not contacted with the eccentric fan blade 6.
In this embodiment, the side of the housing 8 is provided with a dust collection box 11 connected to the dust collection cover 10.
In summary, the dust-proof mechanism of the sander and the sander are provided with the dust-proof cover and the bearing chamber arranged on the bottom plate; wherein the top of bearing room and dust cover unsmooth cooperation to form inclosed space, thereby reach the effect that prevents the dust entering bottom plate bearing, with increase bottom plate bearing's life, reinforcing machine life simultaneously.
The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods.
In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A dust-proof mechanism for a sander, comprising:
a dust cover and a bearing chamber arranged on the bottom plate; wherein the method comprises the steps of
The bearing chamber is adapted to receive a floor bearing; and
the top of the bearing chamber is matched with the dust cover in a concave-convex mode to form a closed space for placing the bottom plate bearing.
2. A dust control mechanism for a sander as set forth in claim 1, wherein,
an eccentric seat is arranged in the bearing chamber; wherein the method comprises the steps of
The eccentric seat penetrates through the dust cover; and
the outer round end of the eccentric seat is provided with a pressing block part;
the briquetting portion is suitable for limiting the upper surface of the dust cover when the dust cover is matched with the bearing chamber.
3. A dust control mechanism for a sander as set forth in claim 2, wherein,
a bottom plate bearing is arranged in the bearing chamber; wherein the method comprises the steps of
The bottom plate bearing is completely arranged in the closed space;
the lower outer circle end of the eccentric seat is arranged in the bottom plate bearing.
4. A dust control mechanism for a sander as set forth in claim 3, wherein,
the dust cover includes: a convex portion and a concave portion; wherein the method comprises the steps of
The convex part corresponds to the outer ring of the bottom plate bearing and is not contacted with the outer ring of the bottom plate bearing; and
the concave part corresponds to the inner ring of the bottom plate bearing and is contacted with the inner ring of the bottom plate bearing.
5. A dust control mechanism for a sander as set forth in claim 2, wherein,
an eccentric fan blade is arranged above the eccentric seat; wherein the method comprises the steps of
And a balance block mounting position is arranged on the lower surface of the eccentric fan blade.
6. A dust control mechanism for a sander as set forth in claim 2, wherein,
the outer round end of the eccentric seat is provided with a balance weight; wherein the method comprises the steps of
The balance weight is arranged on the pressing block part;
the balance weight is used for balancing the rotation of the eccentric seat and the eccentric fan blade.
7. A sander, comprising:
a housing and a sander dust-prevention mechanism as set forth in any one of claims 1-6; wherein the method comprises the steps of
The dustproof structure of the sander is arranged in the shell.
8. The sander as set forth in claim 7, wherein,
an eccentric motor shaft is arranged in the shell; wherein the method comprises the steps of
The eccentric motor shaft is matched with the eccentric seat and the eccentric fan blade in shape so as to drive the eccentric seat and the eccentric fan blade to rotate.
9. The sander as set forth in claim 8, wherein,
a dust collecting cover is arranged in the shell; wherein the method comprises the steps of
The dust collection cover covers the eccentric fan blades and is not contacted with the eccentric fan blades.
10. The sander as set forth in claim 9, wherein,
the side of the shell is provided with a dust collection box communicated with the dust collection cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321657380.7U CN220408370U (en) | 2023-06-28 | 2023-06-28 | Grinder dustproof mechanism and grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321657380.7U CN220408370U (en) | 2023-06-28 | 2023-06-28 | Grinder dustproof mechanism and grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220408370U true CN220408370U (en) | 2024-01-30 |
Family
ID=89653624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321657380.7U Active CN220408370U (en) | 2023-06-28 | 2023-06-28 | Grinder dustproof mechanism and grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220408370U (en) |
-
2023
- 2023-06-28 CN CN202321657380.7U patent/CN220408370U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |