CN202579855U - Tensioning wheel assembly with concave structure - Google Patents
Tensioning wheel assembly with concave structure Download PDFInfo
- Publication number
- CN202579855U CN202579855U CN 201220204959 CN201220204959U CN202579855U CN 202579855 U CN202579855 U CN 202579855U CN 201220204959 CN201220204959 CN 201220204959 CN 201220204959 U CN201220204959 U CN 201220204959U CN 202579855 U CN202579855 U CN 202579855U
- Authority
- CN
- China
- Prior art keywords
- tensioning wheel
- seat
- seat surface
- outer ring
- tensioning
- 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 provides a tensioning wheel assembly with a concave structure. The tensioning wheel assembly comprises a tensioning wheel seat, a tensioning wheel supporting plate and a tensioning pulley, wherein a mounting surface of the tensioning wheel seat is a concave seat surface of which the middle part is concave and the outer ring is the highest; the area of the seat surface middle part of the tensioning wheel seat is lower than the area of the seat surface outer ring (alpha is 0.15 to 0.35mm); and the area of the seat surface outer ring is an inclined surface which has high outside and low inside and inclines from outside to inside, and the inclination angle beta is 5 to 8 degrees. The moment is ensured to be imposed on the seat surface outer ring, and the stress radius of the friction is increased, so that the capacity of bearing the moment is greatly improved after a tensioning wheel is compacted on a support surface. The maximum rotary friction moment is increased by over 40 percent; and the tensioning wheel assembly solves the problem of the deviation of belts of wheel trains, and improves the reliability of engines.
Description
Technical field
The utility model relates to the motor car engine product technical field, specifically is a kind of concave structure stretching wheel assembly of front end train, guarantees the on-stream tensioning state that is in of motor head train belt.
Background technique
In the engine operation process, the friction torque between current Idle wheel and the attachment face is not enough to overcome the load that Idle wheel bears, so that Idle wheel rotates, can't the tensioning train, cause belt tearing.
Summary of the invention
The purpose of the utility model is to the problems referred to above, and a kind of concave structure stretching wheel assembly is provided, and guarantees the on-stream tensioning state that is in of motor car engine front end train belt.
The technological scheme of the utility model is achieved in that the concave structure stretching wheel assembly of the utility model comprises tensioning wheel seat, Idle wheel support plate, tensioning pulley, and the attachment face of said tensioning wheel seat is the concave structure that seat surface medial recess, seat surface outer ring are higher than the middle part.
Described tensioning wheel seat seat surface central region is than the low a=0.15～0.35mm of the outer collar region of seat surface.The outer collar region of described seat surface is the inclined-plane that high outside and low outside ecto-entad tilts, inclination angle beta=5～8 °.
The technique effect of the utility model is: the utility model guarantees that moment in the outer ring, has increased the stressed radius of frictional force, thereby the ability that makes Idle wheel on stent cover, compress back strength square improves greatly.
The installing and locating pin rotates Idle wheel with the electronics torque spanner, between Idle wheel and installation seat surface, relatively rotates.Even note the critical carrying moment that moment values-this Idle wheel of electronic moment spanner demonstration this moment rotates.The contrast seat surface is that plane and seat surface are the spin friction moment discovery of the Idle wheel of concave surface, changes the increase about 40% on the Idle wheel spin friction torque ratio plane of concave structure into, and effect is obvious.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the attachment face structural representation of the tensioning wheel seat of the utility model.
Fig. 3 is the tensioning wheel seat assembling section of the utility model.
Embodiment
Below in conjunction with accompanying drawing and instance the utility model is further described.
Like Fig. 1, Fig. 2, shown in Figure 3, the concave structure stretching wheel assembly of the utility model comprises tensioning wheel seat 1, Idle wheel support plate 2, tensioning pulley 3, and the attachment face of said tensioning wheel seat 1 is the concave structure that seat surface middle part a2 depression, seat surface outer ring a1 are higher than middle part a2.。The 4th, positioning pin hole.
A2 zone, described tensioning wheel seat seat surface middle part is than the regional low a=0.15～0.35mm of seat surface outer ring a1.
A1 zone, described seat surface outer ring is the tilted conical surface that high outside and low outside ecto-entad tilts, inclination angle beta=5～8 °.
Through on the attachment face of tensioning wheel seat 1, having designed height difference is the concave surface of a; After the connecting bolt between tensioning wheel seat 1 and the Idle wheel support plate 2 is tightened; Guaranteed that tensioning pulley 3 bears under the situation of running torque; Do not squint in the initial mounting point of tensioning wheel seat 1 and Idle wheel support plate 2, so guaranteed belt on tensioning pulley 3 not sideslip tear.
Claims (3)
1. concave structure stretching wheel assembly; Comprise tensioning wheel seat (1), Idle wheel support plate (2), tensioning pulley (3), it is characterized in that: the attachment face of said tensioning wheel seat (1) is the concave structure that seat surface middle part (a2) depression, seat surface outer ring (a1) are higher than middle part (a2).
2. concave structure stretching wheel assembly according to claim 1 is characterized in that: zone, described tensioning wheel seat seat surface middle part (a2) is than the low a=0.15～0.35mm in seat surface outer ring (a1) zone.
3. concave structure stretching wheel assembly according to claim 1 and 2 is characterized in that: zone, seat surface outer ring (a1) is the tilted conical surface that high outside and low outside ecto-entad tilts, inclination angle beta=5～8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204959 CN202579855U (en) | 2012-05-09 | 2012-05-09 | Tensioning wheel assembly with concave structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204959 CN202579855U (en) | 2012-05-09 | 2012-05-09 | Tensioning wheel assembly with concave structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579855U true CN202579855U (en) | 2012-12-05 |
Family
ID=47249269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204959 Expired - Fee Related CN202579855U (en) | 2012-05-09 | 2012-05-09 | Tensioning wheel assembly with concave structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679178A (en) * | 2018-08-14 | 2018-10-19 | 晋江海纳机械有限公司 | A kind of elastic draft gear and system |
-
2012
- 2012-05-09 CN CN 201220204959 patent/CN202579855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679178A (en) * | 2018-08-14 | 2018-10-19 | 晋江海纳机械有限公司 | A kind of elastic draft gear and system |
| CN108679178B (en) * | 2018-08-14 | 2023-06-20 | 晋江海纳机械有限公司 | Rubber band traction device and system |
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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: 20121205 Termination date: 20150509 |
|
| EXPY | Termination of patent right or utility model |