CN203627724U - Pulley - Google Patents
Pulley Download PDFInfo
- Publication number
- CN203627724U CN203627724U CN201320684733.2U CN201320684733U CN203627724U CN 203627724 U CN203627724 U CN 203627724U CN 201320684733 U CN201320684733 U CN 201320684733U CN 203627724 U CN203627724 U CN 203627724U
- Authority
- CN
- China
- Prior art keywords
- pulley
- bearing
- hollow shaft
- outward flange
- flange dish
- 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
- 241000196324 Embryophyta Species 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a pulley which comprises a pulley body, a bearing and a hollow shaft. The pulley body is arranged on the bearing in a sleeved mode, the bearing is arranged on the hollow shaft in a sleeved mode, sealing devices are further arranged on the two sides of the pulley body respectively, and the sealing devices are arranged on the hollow shaft in a sleeved mode and seal the bearing. Through lens grinding dynamic sealing on an inner flange and an outer flange, the inner structure of the pulley can be protected from being affected by the external hostile environment, the bearing in the pulley is prevented from being abraded by sundries such as sludge, gravel and weeds, and therefore the service life of the pulley is greatly prolonged.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind of pulley.
Background technique
Now all can be a large amount of in pile foundation engineering, mine operation use engineering machinery, severe due to construction environment, can cause the pulley in engineering machinery to enter the foreign material such as mud, rubble, weeds, can cause very big wearing and tearing to the bearing in pulley, the life-span of pulley is reduced greatly.
Model utility content
The purpose of this utility model is the defect for overcoming prior art, and a kind of pulley is provided.
For achieving the above object, the utility model is by the following technical solutions: a kind of pulley, comprise pulley body, bearing and hollow shaft, described pulley body is sheathed on bearing, described bearing housing is located on hollow shaft, the both sides of described pulley body are also respectively equipped with seal arrangement, and described seal arrangement is sheathed on hollow shaft and by bearing seal.
Described seal arrangement comprises inner flange and outward flange dish, and described inner flange is fixedly connected with pulley body, and described outward flange dish is fixedly connected with hollow shaft, between inner flange and outward flange dish, is provided with mill mirror.
The inner side of described outward flange dish is provided with inner cavity, and a side of described inner flange is embedded in the inner cavity of outward flange dish.
The bottom of described outward flange dish inner cavity is provided with groove, and a side of described mill mirror is connected in groove.
Between described outward flange dish and hollow shaft, be provided with seal ring.
Described hollow shaft is provided with the shaft shoulder, and described bearing housing is located on the shaft shoulder and by two positioning rings and is located.
The utility model beneficial effect is compared with prior art: 1) by the mill mirror dynamic seal (packing) on inside and outside flange; can in rugged environment, protect pulley internal structure not to be subject to ectocine; the wearing and tearing of avoiding the foreign material such as mud, rubble, weeds to cause the bearing in pulley, extend the life-span of pulley greatly.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
In order to more fully understand technology contents of the present utility model, below in conjunction with specific embodiment, the technical solution of the utility model is further introduced and explanation.
As shown in Figure 1, for sectional structure schematic diagram of the present utility model, a kind of pulley, comprise pulley body 10, bearing 20 and hollow shaft 30, pulley body 10 is sheathed on bearing 20, bearing 20 is sheathed on hollow shaft 30, and the both sides of pulley body 10 are also respectively equipped with seal arrangement 40, and seal arrangement 40 is sheathed on hollow shaft 30 and by bearing 20 and seals.
Concrete, seal arrangement 40 comprises inner flange 41 and outward flange dish 42, and inner flange 41 is fixedly connected with pulley body 10, and outward flange dish 42 is fixedly connected with hollow shaft 30, is provided with mill mirror 43 between inner flange 41 and outward flange dish 42.
Concrete, the inner side of outward flange dish 42 is provided with inner cavity 421, and a side 411 of inner flange 41 is embedded in the inner cavity 421 of outward flange dish 42.
Concrete, the bottom of outward flange dish 42 inner cavities 421 is provided with groove 422, and a side of mill mirror 43 is connected in groove 422.
Concrete, between outward flange dish 42 and hollow shaft 30, be provided with seal ring 60.
Concrete, hollow shaft 30 is provided with the shaft shoulder 31, and bearing 20 is sheathed on the shaft shoulder 31 and by two positioning rings 70 and locates.
The above only further illustrates technology contents of the present utility model with embodiment; so that reader is easier to understand; but do not represent that mode of execution of the present utility model only limits to this, any technology of doing according to the utility model is extended or recreation, is all subject to protection of the present utility model.
Claims (5)
1. a pulley, comprise pulley body, bearing and hollow shaft, described pulley body is sheathed on bearing, and described bearing housing is located on hollow shaft, it is characterized in that, the both sides of described pulley body are also respectively equipped with seal arrangement, described seal arrangement is sheathed on hollow shaft and by bearing seal, and seal arrangement comprises inner flange and outward flange dish, and described inner flange is fixedly connected with pulley body, described outward flange dish is fixedly connected with hollow shaft, between inner flange and outward flange dish, is provided with mill mirror.
2. pulley according to claim 1, is characterized in that, the inner side of described outward flange dish is provided with inner cavity, and a side of described inner flange is embedded in the inner cavity of outward flange dish.
3. according to the arbitrary described pulley of claim 1 or 2, it is characterized in that, the bottom of described outward flange dish inner cavity is provided with groove, and a side of described mill mirror is connected in groove.
4. according to the arbitrary described pulley of claim 1 or 2, it is characterized in that, between described outward flange dish and hollow shaft, be provided with seal ring.
5. according to the arbitrary described pulley of claim 1 or 2, it is characterized in that, described hollow shaft is provided with the shaft shoulder, and described bearing housing is located on the shaft shoulder and by two positioning rings and is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684733.2U CN203627724U (en) | 2013-10-31 | 2013-10-31 | Pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684733.2U CN203627724U (en) | 2013-10-31 | 2013-10-31 | Pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627724U true CN203627724U (en) | 2014-06-04 |
Family
ID=50814206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320684733.2U Expired - Lifetime CN203627724U (en) | 2013-10-31 | 2013-10-31 | Pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627724U (en) |
-
2013
- 2013-10-31 CN CN201320684733.2U patent/CN203627724U/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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |