CN201963819U - Tensioning device of engine belt - Google Patents
Tensioning device of engine belt Download PDFInfo
- Publication number
- CN201963819U CN201963819U CN201120033054XU CN201120033054U CN201963819U CN 201963819 U CN201963819 U CN 201963819U CN 201120033054X U CN201120033054X U CN 201120033054XU CN 201120033054 U CN201120033054 U CN 201120033054U CN 201963819 U CN201963819 U CN 201963819U
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- CN
- China
- Prior art keywords
- cover plate
- bearing
- eccentric shaft
- wheel seat
- hole
- 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 - Fee Related
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Abstract
The utility model relates to an engine of a digger, and provides a tensioning device of an engine belt, which is simple in structure, convenient to use and long in service life. The tensioning device comprises an eccentric shaft, a bearing, a tensioning wheel seat and a cover plate, wherein the peripheral outer side wall of the bearing is sheathed on the peripheral inner side wall of the tensioning wheel seat, the peripheral outer side wall of the eccentric shaft is matched with the peripheral inner side wall of the bearing to be penetrated on the tensioning wheel seat, and the cover plate is arranged on the tensioning wheel seat. The tensioning device is characterized in that a through hole is arranged on the cover plate, an oil hole which corresponds to the through hole of the cover plate is arranged on the eccentric shaft, an oil way is arranged on the peripheral radial direction of the eccentric shaft, one end of the oil way is communicated with the oil hole, and the other end of the oil way is connected with the bearing.
Description
Technical field
The utility model relates to a kind of digger engine, especially relates to a kind of dynamo belt belt tensioner.
Background technique
It is the expanding force that keeps dynamo belt that the dynamo belt belt tensioner mainly acts on, and back-up belt reduces belt vibration, thereby the noise of motor is reduced, and makes its more effective work.Existing excavator belt tension device mainly is made up of eccentric shaft, shield bearing, expansion tightening wheel, cover plate, described shield bearing is sheathed on the eccentric shaft, described shield bearing is provided with expansion tightening wheel, the belt tension device of this structure, bearing on its eccentric shaft adopts shield bearing in order to play dustproof effect event, its interior lubricant oil of this kind shield bearing is disposable, can not change additional, the expansion tightening wheel continuous operation is inner can generate heat, cause the volatilization of the lubricant oil in the shield bearing, lubrication effect is poor, thereby influences the working life of expansion tightening wheel.
The model utility content
Therefore, at above-mentioned problem, the utility model provides a kind of simple in structure, digger engine belt tension device of can be at any time injecting lubricant oil in bearing, has solved the problem that lubricant oil can not be changed in the belt tensioner middle (center) bearing.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of dynamo belt belt tensioner, comprise eccentric shaft, bearing, the tensioner wheel seat, cover plate, described bearing periphery wall is sheathed on the tensioner wheel seat inside circumference wall, described eccentric shaft periphery wall matches with bearing inside circumference wall and is arranged on the tensioner wheel seat, described tensioner wheel seat is provided with cover plate, described cover plate is provided with through hole, described eccentric shaft is provided with and the corresponding oilhole of cover plate through hole, described eccentric shaft circumference directly upwards is provided with oil duct, described oil duct one end is connected the other end connection bearing with oilhole.
Further improve: described bearing is provided with dust-proof seal ring away from the end eccentric shaft of cover plate, is provided with packing ring with the cover plate adjacent end portion.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: its eccentric shaft of the utility model is provided with oilhole, oilhole links to each other with oil nozzle by the through hole on the cover plate, described eccentric shaft circumference directly upwards is provided with oil duct, and described oil duct one end is connected the other end connection bearing with oilhole, this new structure is reasonable, easy to use, can in bearing, inject lubricant oil at any time, improved the working life of expansion tightening wheel device.
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to figure 1, a kind of dynamo belt belt tensioner, comprise eccentric shaft 1, bearing 2, tensioner wheel seat 3, cover plate 4, described bearing 2 periphery walls are sheathed on the tensioner wheel seat 3 inside circumference walls, described eccentric shaft 1 periphery wall matches with bearing 2 inside circumference walls and is arranged on the tensioner wheel seat 3, described tensioner wheel seat 3 is provided with cover plate 4, described cover plate 4 is provided with through hole 41, described eccentric shaft 1 is provided with and the corresponding oilhole 11 of cover plate through hole, described oilhole 11 links to each other with grease nipple by the through hole on the cover plate 41, described eccentric shaft 1 circumference directly upwards is provided with oil duct 12, described oil duct 12 1 ends are connected with oilhole 11, the other end connection bearing 2, described bearing 2 ends adjacent with cover plate are provided with packing ring 5, are provided with dust-proof seal ring 6 away from patch ends.
During use, lubricant oil enters oilhole on the eccentric shaft by the grease nipple on the cover plate through hole, and the radially oily passage on the eccentric shaft enters bearing again, can be bearing replacing lubricant oil at any time, makes bearing lubrication.This new structure is simple, easy to use, is a kind of significant improvement of existing digger engine belt tensioner, the working life of having improved the digger engine belt tensioner.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (2)
1. dynamo belt belt tensioner, comprise eccentric shaft, bearing, tensioner wheel seat, cover plate, described bearing periphery wall is sheathed on the tensioner wheel seat inside circumference wall, described eccentric shaft periphery wall matches with bearing inside circumference wall and is arranged on the tensioner wheel seat, described tensioner wheel seat is provided with cover plate, it is characterized in that: described cover plate is provided with through hole, described eccentric shaft is provided with and the corresponding oilhole of cover plate through hole, described eccentric shaft circumference directly upwards is provided with oil duct, described oil duct one end is connected the other end connection bearing with oilhole.
2. belt tension device according to claim 1 is characterized in that: described bearing is provided with dust-proof seal ring away from the end eccentric shaft of cover plate, is provided with packing ring with the cover plate adjacent end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120033054XU CN201963819U (en) | 2011-01-27 | 2011-01-27 | Tensioning device of engine belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120033054XU CN201963819U (en) | 2011-01-27 | 2011-01-27 | Tensioning device of engine belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963819U true CN201963819U (en) | 2011-09-07 |
Family
ID=44526355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120033054XU Expired - Fee Related CN201963819U (en) | 2011-01-27 | 2011-01-27 | Tensioning device of engine belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963819U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161897A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Tensioning wheel |
| WO2014121719A1 (en) * | 2013-02-07 | 2014-08-14 | 盖茨优霓塔传动系统（上海）有限公司 | Tension adjustment device |
-
2011
- 2011-01-27 CN CN201120033054XU patent/CN201963819U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161897A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Tensioning wheel |
| WO2014121719A1 (en) * | 2013-02-07 | 2014-08-14 | 盖茨优霓塔传动系统（上海）有限公司 | Tension adjustment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110907 Termination date: 20150127 |
|
| EXPY | Termination of patent right or utility model |