CN2779164Y - Composite tooth shaped cylindrical gear - Google Patents
Composite tooth shaped cylindrical gear Download PDFInfo
- Publication number
- CN2779164Y CN2779164Y CN 200520069229 CN200520069229U CN2779164Y CN 2779164 Y CN2779164 Y CN 2779164Y CN 200520069229 CN200520069229 CN 200520069229 CN 200520069229 U CN200520069229 U CN 200520069229U CN 2779164 Y CN2779164 Y CN 2779164Y
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- CN
- China
- Prior art keywords
- gear
- tooth
- utility
- sides
- involute working
- 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
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Abstract
The utility model relates to a composite tooth shaped cylindrical gear. The utility model mainly comprises a tooth crest (1), gear teeth (3), a tooth root curved surface (6) and involute working flanks (4). The utility model is characterized in that the involute working flanks (4) at both sides of the gear teeth (3) are tangential with and smoothly connected with the tooth crest (1) by a convex cylindrical surface (2), and the involute working flanks (4) at both sides of a gear slot (5) are in direct tangency and smooth connection to form the tooth root curved surface (6) by a concave cylindrical surface. The composite tooth shaped cylindrical gear can effectively reduce the impact and the noise of the gear engagement, an oil film is easy to form, the bending strength of the gear is enhanced and the curvature radius of the tooth root is increased.
Description
Technical field
The utility model relates to a kind of mechanical transmission component, specifically is a kind of Composite Toothed Cylindrical Gear.
Background technique
Gear is the important foundation part of engineering goods.Gear transmission is mechanically operated a kind of principal mode, it is compared with mechanical transmission such as band, chain, friction, hydraulic pressure, it is big to have power range, the transmission efficiency height, velocity ratio is accurate, long service life, characteristics such as safe and reliable are widely used in fields such as automobile, lathe, electric power, metallurgy, engineering, boats and ships, Aeronautics and Astronautics.A kind of involute cylindrical gear of the prior art, in the gear pair engagement process, because the gear carrying is stressed, produce local elasticity's distortion at the tooth top position, the gear teeth when engaging-in teeth groove often the tooth top wedge angle meet another gear teeth flank of tooth earlier, rather than it is evenly engaging-in to be theoretical involute, cause impacting and gearing noise, teeth groove behind the while generate, the involute working flank of its both sides connects with Root surface mutually through fillet surface respectively, radius of curvature is little, and teeth bending strength can not get due raising.
Summary of the invention
There is above-mentioned deficiency in order to overcome prior art, purpose in model utility provides a kind of Gear Processing precision that need not to improve, do not change processing method, can effectively reduce gear meshing and impact and noise, improve the Composite Toothed Cylindrical Gear of gear bending strength.
In order to achieve the above object, the technical solution adopted in the utility model is: Composite Toothed Cylindrical Gear mainly comprises tooth top, the gear teeth, Root surface, involute working flank, it is characterized in that gear teeth both sides involute working flank and tooth top through the tangent smooth connection of convex cylindrical face, teeth groove both sides involute working flank directly forms Root surface through the tangent smooth connection of concave cylindrical face.
After adopting above technological scheme, the beneficial effect that the utility model reaches is: because gear teeth both sides involute working flank and tooth top are through the tangent connection of convex cylindrical face, gear pair keeps the arc surface contact in engagement process, impact and the noise of having avoided the peak angle contacting to produce, be easy to form oil film, its Contact Stress of Gear is little, reduces noise and vibration, improves contact bearing capacity 10-15%.Simultaneously, because teeth groove both sides involute working flank directly through the tangent Root surface that is coupled to of concave cylindrical face, has increased the tooth root radius of curvature, flexural strength improves more than 25%.
Description of drawings
Fig. 1 is portion of a wheel tooth of the present utility model end office (EO) schematic representation.
Fig. 2 is portion of the wheel tooth end office (EO) schematic representation of prior art.
Fig. 3 is the utility model gear pair mesh schematic representation.
Among Fig. 1,2, tooth top 1, convex cylindrical face 2, the gear teeth 3, involute working flank 4, teeth groove 5, Root surface 6, fillet surface 7,8.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 2 is the signal of portion of prior art wheel tooth end office (EO), and its gear teeth both sides involute working flank 4 connects the formation wedge angle with tooth top 1, and teeth groove both sides involute working flank 4 connects through transition curved surface 7,8 and Root surface 6 respectively.
And this Composite Toothed Cylindrical Gear (as shown in Figure 1), the involute working flank 4 of its gear teeth 3 both sides is through convex cylindrical face 2 and tooth top 1 tangent smooth connection, and teeth groove 5 both sides involute working flanks 4 form Root surface 6 through the tangent smooth connection of concave cylindrical face.
During the gear pair engagement (as shown in Figure 3), convex cylindrical face by the gear teeth contacts with the involute working flank of another gear teeth earlier, the involute working flank that transfers the gear teeth gradually to contacts with the involute working flank of another gear teeth, all Surface of action all keep the arc surface contact, be easy to form oil film, reduce Contact Stress of Gear, reduce noise and vibration, improve gear mesh efficiency.
Claims (1)
1, a kind of Composite Toothed Cylindrical Gear, mainly comprise tooth top (1), the gear teeth (3), Root surface (6), involute working flank (4), it is characterized in that: the gear teeth (3) both sides involute working flanks (4) and tooth top (1) are through the tangent smooth connection of convex cylindrical face (2), and teeth groove (5) both sides involute working flanks (4) directly form Root surface (6) through the tangent smooth connection of concave cylindrical face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069229 CN2779164Y (en) | 2005-02-23 | 2005-02-23 | Composite tooth shaped cylindrical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520069229 CN2779164Y (en) | 2005-02-23 | 2005-02-23 | Composite tooth shaped cylindrical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779164Y true CN2779164Y (en) | 2006-05-10 |
Family
ID=36753252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520069229 Expired - Lifetime CN2779164Y (en) | 2005-02-23 | 2005-02-23 | Composite tooth shaped cylindrical gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779164Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089964A (en) * | 2013-02-21 | 2013-05-08 | 彭敖勇 | Design of bevel gear and cylindrical gear and mixed cutting method thereof |
| CN101749404B (en) * | 2008-11-28 | 2014-03-19 | 恩普乐股份有限公司 | Gear |
| CN104832622A (en) * | 2015-05-20 | 2015-08-12 | 蒋桂云 | Harmonic reducer of improved structure |
-
2005
- 2005-02-23 CN CN 200520069229 patent/CN2779164Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749404B (en) * | 2008-11-28 | 2014-03-19 | 恩普乐股份有限公司 | Gear |
| CN103089964A (en) * | 2013-02-21 | 2013-05-08 | 彭敖勇 | Design of bevel gear and cylindrical gear and mixed cutting method thereof |
| CN103089964B (en) * | 2013-02-21 | 2015-12-09 | 彭敖勇 | The design of a kind of bevel gear and cylindrical gears and mixing cutting method thereof |
| CN104832622A (en) * | 2015-05-20 | 2015-08-12 | 蒋桂云 | Harmonic reducer of improved structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TAIXING SPEED REDUCER CO., LTD. Assignor: Zhang Guolin Contract fulfillment period: 2006.9.1 to 2014.11.1 Contract record no.: 2008320000155 Denomination of utility model: Composite tooth shaped cylindrical gear Granted publication date: 20060510 License type: Exclusive license Record date: 20080922 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.9.1 TO 2014.11.1 Name of requester: TAIXING REDUCER CO.,LTD. Effective date: 20080922 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150223 Granted publication date: 20060510 |