CN104806726A - Gear - Google Patents
Gear Download PDFInfo
- Publication number
- CN104806726A CN104806726A CN201410654503.0A CN201410654503A CN104806726A CN 104806726 A CN104806726 A CN 104806726A CN 201410654503 A CN201410654503 A CN 201410654503A CN 104806726 A CN104806726 A CN 104806726A
- Authority
- CN
- China
- Prior art keywords
- gear
- teeth
- present
- internal face
- gear ring
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
Abstract
The invention discloses a gear. The gear comprises compositions of, by mass, 0.8% to 1% of carbon, 1.5% to 2% of copper, the balance being iron and other elements. Compared with the prior art, the compositions and the proportion of the gear are moderate, the heat resistance and the heat dissipation property of the gear are improved greatly, and accordingly, the normal operation of the gear is guaranteed, and the gear service life is prolonged; besides, the gear dose not contain scarce elements of nickel, molybdenum and manganese, so that the fabrication cost is low; meanwhile, the types of gear compositions is few, so that the fabrication process is simple, and the fabrication cost is further reduced.
Description
Technical field
The present invention relates to a kind of technical field of mechanical transmission component, particularly relate to a kind of gear.
Background technique
Gear is a kind of common mechanical transmission part, in the process of transmission, easily produce high temperature, makes gear generation deformation, thus makes gear generation mechanical failure, shortens the working life of gear.Therefore, the heat resistance of gear and heat dispersion are directly connected to the quality of gear.Existing gear forms primarily of raw material manufactures such as carbon, iron, nickel, molybdenum and manganese, but its heat resistance and heat dispersion are not good, and its rare elemental nickel, molybdenum, manganese content very high, cause the manufacture cost of gear too high, in addition, because raw material type is more, cause manufacturing process complicated, and then increase manufacture cost.
Summary of the invention
The present invention mainly solves existing gear heat resistance and the high technical problem of poor radiation, complicate fabrication process and manufacture cost.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses a kind of gear, the composition of described gear comprises that mass percent is the carbon of 0.8 ~ 1%, copper, the surplus of 1.5 ~ 2% is iron and other element.
In a kind of preferred embodiment of the present invention, the content of other element described is less than or equal to 1%.
In a kind of preferred embodiment of the present invention, other element described comprises nitrogen, p and s.
In a kind of preferred embodiment of the present invention, described gear comprises gear ring, teeth, axis hole and oilhole, described gear ring comprises the outer wall and internal face that are oppositely arranged, described teeth are located at the outer wall of described gear ring, teeth groove is formed between adjacent two teeth, described internal face surrounds described axis hole, and described oilhole extends to described teeth groove from the internal face of described gear ring.
Compared to prior art, each composition of gear provided by the invention and ratio moderate, substantially increase heat resistance and the thermal diffusivity of gear, thus ensure that gear normally runs, extend the working life of gear, and gear of the present invention is not containing rare elemental nickel, molybdenum and manganese, low cost of manufacture, meanwhile, the composition kind of gear is less, make manufacturing process more easy, and then reduce manufacture cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the sectional view of gear one provided by the invention preferred embodiment.
Embodiment
Be clearly and completely described the technological scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The composition of described gear comprises that mass percent is the carbon of 0.8 ~ 1%, copper, the surplus of 1.5 ~ 2% is iron and other element.Wherein, the content of other element described is less than or equal to 1%.
Carbon is the required composition guaranteeing the strength of gear teeth, therefore will be defined as 0.8% under the adding quantity of carbon to guarantee the intensity of gear in the present invention.But if when the content of carbon is more than 1%, then the toughness of gear reduces, and therefore, determines that the content of carbon is 0.8 ~ 1%.
Copper has high thermal conductivity, adds resistance to heat and thermal diffusivity that a small amount of copper can improve gear, is purpose of the present invention.But a large amount of copper that contains not only makes cost increase, but also hardness can be caused uneven, therefore, determines that the content of copper is 1.5 ~ 2%.
Preferably, other element described comprises nitrogen, p and s.
Particularly, nitrogen can have the effect preventing austenite structure coarsening when to carry out Carburization Treatment and Quenching Treatment in steel process by forming various nitride.
Phosphorus has the effect when crystal face generation segregation, toughness being reduced in steel process.
Sulphur has the effect improving machinability.
In addition, other element described also comprises inevitable impurity.
After adopting above-described composition and ratio, the density of obtained gear is 6.7g/cm
3due to each composition and ratio moderate, substantially increase heat resistance and the thermal diffusivity of gear, thus ensure that gear normally runs, extend the working life of gear, and gear of the present invention is not containing rare elemental nickel, molybdenum and manganese, low cost of manufacture, meanwhile, the composition kind of gear is less, make manufacturing process more easy, and then reduce manufacture cost.
Be more than the improvement of the present invention on gear composition, meanwhile, the present invention also improves in the structure of gear, to improve heat resistance and the thermal diffusivity of gear further.
Referring to Fig. 1, is the sectional view of gear one provided by the invention preferred embodiment.Described gear 100 comprises gear ring 1, teeth 2, axis hole 3, teeth groove 4 and oilhole 5.Described gear ring 1 comprises the outer wall (non-label) and internal face (non-label) that are oppositely arranged.Described teeth 2 are located at the outer wall of described gear ring 1.Teeth groove 4 is formed between adjacent two teeth 2.The internal face of described ring gear 1 surrounds described axis hole 3.Described oilhole 5 extends to described teeth groove 4 from the internal face of described gear ring 1.
Because described gear 100 has half to be immersed in lubricant oil, then the oilhole 5 of described gear 100 is interior can store a certain amount of lubricant oil, when described gear 100 operates, under the influence of centrifugal force, the lubricant oil stored in described oilhole 5 gets rid of the outer wall to described gear ring 1, reaches the effect of the lubrication flank of tooth, simultaneously, lubricant oil can also take away the partial heat produced in the work of described gear 100, reaches the effect of heat radiation, thus improves heat resistance and the thermal diffusivity of described gear 100.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a gear, is characterized in that, the composition of described gear comprises that mass percent is the carbon of 0.8 ~ 1%, copper, the surplus of 1.5 ~ 2% is iron and other element.
2. gear according to claim 1, is characterized in that, the content of other element described is less than or equal to 1%.
3. gear according to claim 2, is characterized in that, other element described comprises nitrogen, p and s.
4. gear according to claim 2, is characterized in that, other element described comprises inevitable impurity.
5. gear according to claim 1, it is characterized in that, described gear comprises gear ring, teeth, axis hole, teeth groove and oilhole, described gear ring comprises the outer wall and internal face that are oppositely arranged, described teeth are located at the outer wall of described gear ring, form teeth groove between adjacent two teeth, described internal face surrounds described axis hole, and described oilhole extends to described teeth groove from the internal face of described gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654503.0A CN104806726A (en) | 2014-11-18 | 2014-11-18 | Gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654503.0A CN104806726A (en) | 2014-11-18 | 2014-11-18 | Gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806726A true CN104806726A (en) | 2015-07-29 |
Family
ID=53691821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410654503.0A Pending CN104806726A (en) | 2014-11-18 | 2014-11-18 | Gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806726A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004036745A (en) * | 2002-07-03 | 2004-02-05 | Pooraito Kk | Sintered oil-bearing gear |
| CN101306435A (en) * | 2007-05-17 | 2008-11-19 | 首钢总公司 | Production method of toothed wheel |
| CN201795022U (en) * | 2010-08-30 | 2011-04-13 | 龚晓建 | Gear |
| CN102534414A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Steel for gear of speed reducing motor |
| CN102605260A (en) * | 2012-02-24 | 2012-07-25 | 宝山钢铁股份有限公司 | Low-deformation gear steel and manufacturing method thereof |
| CN102734434A (en) * | 2012-06-15 | 2012-10-17 | 扬州保来得科技实业有限公司 | Automobile automatic gearbox camshaft timing chain wheel and preparation method thereof |
-
2014
- 2014-11-18 CN CN201410654503.0A patent/CN104806726A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004036745A (en) * | 2002-07-03 | 2004-02-05 | Pooraito Kk | Sintered oil-bearing gear |
| CN101306435A (en) * | 2007-05-17 | 2008-11-19 | 首钢总公司 | Production method of toothed wheel |
| CN201795022U (en) * | 2010-08-30 | 2011-04-13 | 龚晓建 | Gear |
| CN102534414A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Steel for gear of speed reducing motor |
| CN102605260A (en) * | 2012-02-24 | 2012-07-25 | 宝山钢铁股份有限公司 | Low-deformation gear steel and manufacturing method thereof |
| CN102734434A (en) * | 2012-06-15 | 2012-10-17 | 扬州保来得科技实业有限公司 | Automobile automatic gearbox camshaft timing chain wheel and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |