CN202862010U - Dustproof structure of angle grinder - Google Patents
Dustproof structure of angle grinder Download PDFInfo
- Publication number
- CN202862010U CN202862010U CN 201220584552 CN201220584552U CN202862010U CN 202862010 U CN202862010 U CN 202862010U CN 201220584552 CN201220584552 CN 201220584552 CN 201220584552 U CN201220584552 U CN 201220584552U CN 202862010 U CN202862010 U CN 202862010U
- Authority
- CN
- China
- Prior art keywords
- bearing
- gear
- angle grinder
- dustproof
- box
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
A dustproof structure of an angle grinder comprises a gear box, a gear, a bearing, a dustproof ring and a bearing pressing plate. The gear, the bearing and the dustproof ring are arranged on the gear box. The bearing pressing plate fixes the bearing through four screws. A groove is arranged on a boss of a gear box bearing seat. The dustproof ring is clamped in the groove. The dustproof structure of the angle grinder has the advantages of being reasonable in structural design, good in dustproof performance, capable of prolonging service lives of the gear and the bearing and the like.
Description
Technical field:
The utility model relates to a kind of electric angle grinder, particularly relates to a kind of dustproof construction of electric angle grinder.
Background technology:
The outbound course that electric angle grinder uses bevel gear to carry out 90 degree changes and speed change.The gear rear end can produce a very large axial force, and in frequent starting, it is mobile backward that gear promotes bearing, in case bearing shaft to gapped, just is easy to cause gear failure.In addition, the electric angle grinder work under bad environment, armature front end output bearing is in semi-enclosed reduction box, and dust, aqueous vapor etc. very easily enters bearing chamber and causes bearing failure.The dustproof construction of electric angle grinder roughly has following two kinds of structures in the prior art: a kind of structure is that the Bearing support pressing plate is guaranteed bearing without any joint gap under the compression of three screws, but the sealing of bearing machinery-free, and dustproof bad, bearing lost efficacy easily; Another kind of structure is that Bearing support compresses bearing with plate hole with back-up ring, owing to used the hole back-up ring, axially certainly exists the gap, can cause axial motion at work, thereby shortens service life of gear.Therefore, be necessary to be improved.
The utility model content:
Goal of the invention of the present utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of reasonable in design is provided, dust tightness is good and can greatly prolongs gear and the dustproof construction of the electric angle grinder in bearing service life.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of dustproof construction of electric angle grinder, comprise gear-box and the gear, bearing and the dust ring that are arranged on the described gear-box, also comprise a bearing plate, described bearing plate is fixed described bearing by a plurality of screws, the boss of described gearbox shaft bearing is provided with a groove, and described dust ring is connected in the described groove.
Described bearing plate is fixed described bearing by 4 described screws.
The utility model has following advantage with respect to prior art:
The utility model is fixed bearing by 4 screws with bearing plate, guarantee that bearing is without any joint gap, in addition, dust ring is connected in the groove on the boss of bearing block of gear-box, simultaneously dust ring forms labyrinth seal with fan blade, and is effective so that dust tightness is good and greatly prolong gear and bearing service life.
Description of drawings:
Fig. 1 is the utility model bearing plate structural representation that bearing is fixing.
Fig. 2 is cutaway view of the present utility model.
Fig. 3 is the local enlarged diagram of Fig. 2.
The specific embodiment:
Referring to Fig. 1 to Fig. 3, the dustproof construction of a kind of electric angle grinder that provides according to the utility model, comprise gear-box 1 and the gear 2, bearing 3 and the dust ring 4 that are arranged on the gear-box 1, also comprise a bearing plate 5, this bearing plate 5 is fixing with bearing 3 by 4 screws 6, the boss of gear-box 1 bearing block is provided with a groove 7, and dust ring 4 is connected in the groove 7.Bearing plate 5 is fixed bearing by 4 screws, guarantee that bearing 3 is without any joint gap, in addition, dust ring 4 is connected in the groove 7 on the boss of bearing block of gear-box 1, simultaneously dust ring 4 forms labyrinth seal with fan blade, effectively so that dust tightness is good and greatly prolong gear 2 and 3 service lifes of bearing.
Above-described embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (2)
1. the dustproof construction of an electric angle grinder, comprise gear-box (1) and be arranged on gear (2), bearing (3) and dust ring (4) on the described gear-box (1), it is characterized in that: also comprise a bearing plate (5), described bearing plate (5) is fixing with described bearing (3) by a plurality of screws (6), the boss of described gear-box (1) bearing block is provided with a groove (7), and described dust ring (4) is connected in the described groove (7).
2. the dustproof construction of a kind of electric angle grinder according to claim 1 is characterized in that: described bearing plate (5) is fixing with described bearing (3) by 4 described screws (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584552 CN202862010U (en) | 2012-10-28 | 2012-10-28 | Dustproof structure of angle grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220584552 CN202862010U (en) | 2012-10-28 | 2012-10-28 | Dustproof structure of angle grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202862010U true CN202862010U (en) | 2013-04-10 |
Family
ID=48028766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220584552 Expired - Lifetime CN202862010U (en) | 2012-10-28 | 2012-10-28 | Dustproof structure of angle grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202862010U (en) |
-
2012
- 2012-10-28 CN CN 201220584552 patent/CN202862010U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Dustproof structure of angle grinder Effective date of registration: 20181026 Granted publication date: 20130410 Pledgee: Yongkang branch of the Industrial Commercial Bank of China Ltd. Pledgor: Zhejiang SAFUN Industrial Co.,Ltd. Registration number: 2018330000339 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231113 Granted publication date: 20130410 Pledgee: Yongkang branch of the Industrial Commercial Bank of China Ltd. Pledgor: Zhejiang SAFUN Industrial Co.,Ltd. Registration number: 2018330000339 |