CN201448418U - Powder metallurgy spiral bevel gear - Google Patents
Powder metallurgy spiral bevel gear Download PDFInfo
- Publication number
- CN201448418U CN201448418U CN2009200439390U CN200920043939U CN201448418U CN 201448418 U CN201448418 U CN 201448418U CN 2009200439390 U CN2009200439390 U CN 2009200439390U CN 200920043939 U CN200920043939 U CN 200920043939U CN 201448418 U CN201448418 U CN 201448418U
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- CN
- China
- Prior art keywords
- bevel gear
- spiral bevel
- powder metallurgy
- gear
- axle center
- 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 discloses a powder metallurgy spiral bevel gear, which comprises a gear body with an axle center hole. One end surface of the gear body is equipped with umbrella-shaped gear teeth, and an axial pin groove is arranged on the axle center hole. The spiral bevel gear is a high powder metallurgy spiral bevel gear part with high precision and high strength, which is successfully manufactured via a powder metallurgy process. Hardness value Hv (0.1) of the spiral bevel gear is over 600, carburizing thickness is over 0.30mm, teeth groove amplitude is below 0.07mm, and adjacent teeth pitch error is below 0.02mm. The powder metallurgy spiral bevel gear is used on a high-quality tool product and outputs moment with different directions through matching with pairing gears. The spiral bevel gear can meet requirements of light weight and small size of novel tool products, is high in precision and low in noise, guarantees stable operation and saves energy consumption.
Description
Technical field
The utility model relates to a kind of spiral bevel gear, relates in particular to a kind of powder metallurgy spiral bevel gear.
Background technique
At present, the powder metallurgy spiral bevel gear is to use one of vital part in the gear in high ending tool series products, as electric tool, and small engineering machinery etc.Its effect be by with the cooperating of antithesis gear, the moment of output different direction reaches and stablizes speed change and transmission.Because under equal stressed situation, adopt helical gear drive, the tooth portion contact rate of gear is greater than traditional spur gear, so can reduce the design size of entire product group.And gear prepared in the prior art, the diversity ratio between part and the part is bigger, and precision is not enough, all can not satisfy usage requirement.
The model utility content
Goal of the invention: at the deficiencies in the prior art, the purpose of this utility model provides a kind of powder metallurgy spiral bevel gear, to realize that product has the precision height, the characteristic that dimensional stability is good.
Technological scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the utility model is:
A kind of powder metallurgy spiral bevel gear comprises the gear mass that has axle center hole, is provided with the umbrella gear teeth on an end face of described gear mass; On described axle center hole, be provided with axial cotter way.
On the described end face that is provided with the umbrella gear teeth, be provided with groove radially; Be provided with flange on the other end of described gear mass, described flange has 2, be symmetricly set on axle center hole around.
Described axle center hole is along axially outwards slightly extending, and bearing of trend is for to stretch out from the end face that is provided with flange.
The hardness number Hv of described spiral bevel gear (0.1) is more than 600.
The carburizing thickness of described spiral bevel gear is more than 0.30mm.
Below the roller seating space amplitude 0.07mm of described spiral bevel gear.
Described spiral bevel gear in abutting connection with pitch error below 0.02mm.
The material of powder metallurgy spiral bevel gear of the present utility model is the Fe-Cu-Ni-Mo alloy, and density is at 7.0g/cm
3More than.Iron-based raw material warm-pressing formation under certain condition, the technology path of Carburization Treatment behind the employing high temperature sintering, thereby guarantee the sintering strength of product and the wear resistance after the carburizing, in addition in the prealloy process, add the raw material of special temperature and pressure oiling agent, make the alloying element diffusion more even, reach complete alloyage, fully improved the combination property of material.By such production technology, the hardness number Hv (0.1) that has effectively guaranteed this spiral bevel gear is more than 600, carburizing thickness more than 0.30mm, below the roller seating space amplitude 0.07mm, in abutting connection with pitch error below 0.02mm.
Beneficial effect: this spiral bevel gear is by powder metallurgical technique, highi degree of accuracy, high-strength powder metallurgical spiral bevel gear part that success is made.The hardness number Hv of this spiral bevel gear (0.1) is more than 600, carburizing thickness more than 0.30mm, below the roller seating space amplitude 0.07mm, in abutting connection with pitch error below 0.02mm.This spiral bevel gear uses on high-grade instrument series products, by with the antithesis gear cooperate the moment of output different direction.This spiral bevel gear configuration design uniqueness can meet the light-duty flower of weight of new tool series products, the requirement of compact in size.Highi degree of accuracy has guaranteed running steadily, and noise is little, energy efficient.
Description of drawings
Fig. 1 is the plan view of powder metallurgy spiral bevel gear of the present invention.
Fig. 2 is the rear view of powder metallurgy spiral bevel gear of the present invention.
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Embodiment
Below in conjunction with accompanying drawing the utility model is further explained.
As Fig. 1, Fig. 2 and shown in Figure 3, be powder metallurgy spiral bevel gear of the present utility model.This powder metallurgy spiral bevel gear comprises the gear mass 1 that has axle center hole 3, is provided with the umbrella gear teeth 2 on an end face of described gear mass 1; On described axle center hole 3, be provided with axial cotter way 4.
On the end face that is provided with the umbrella gear teeth 2, be provided with groove 5 radially; Be provided with flange 6 on the other end of gear mass 1, described flange 6 has 2, be symmetricly set on axle center hole 3 around.The shape of groove 5 can be rule or irregularly shaped, is arranged on the periphery of axle center hole 3, the inside of the gear teeth 2.
Described axle center hole 3 is along axially outwards slightly extending, and bearing of trend is for to stretch out from the end face that is provided with flange 6.
The material of powder metallurgy spiral bevel gear of the present utility model is the Fe-Cu-Ni-Mo alloy, and density is at 7.0g/cm
3More than.Iron-based raw material warm-pressing formation under certain condition, the technology path of Carburization Treatment behind the employing high temperature sintering, thereby guarantee the sintering strength of product and the wear resistance after the carburizing, in addition in the prealloy process, add the raw material of special temperature and pressure oiling agent, make the alloying element diffusion more even, reach complete alloyage, fully improved the combination property of material.By such production technology, effectively guaranteed the hardness and the precision of this spiral bevel gear.
After testing, the hardness number Hv of this spiral bevel gear (0.1) is more than 600, carburizing thickness more than 0.30mm, below the roller seating space amplitude 0.07mm, in abutting connection with pitch error below 0.02mm.This spiral bevel gear uses on high-grade instrument series products, by with the antithesis gear cooperate the moment of output different direction.This spiral bevel gear configuration design uniqueness can meet the light-duty flower of weight of new tool series products, the requirement of compact in size.Highi degree of accuracy has guaranteed running steadily, and noise is little, energy efficient.
Claims (9)
1. a powder metallurgy spiral bevel gear comprises the gear mass (1) that has axle center hole (3), it is characterized in that: be provided with the umbrella gear teeth (2) on an end face of described gear mass (1); On described axle center hole (3), be provided with axial cotter way (4).
2. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: be provided with groove (5) radially on the described end face that is provided with the umbrella gear teeth (2).
3. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: described axle center hole (3) is along axially outwards slightly extending.
4. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: be provided with flange (6) on the other end of described gear mass (1).
5. powder metallurgy spiral bevel gear according to claim 4 is characterized in that: described flange (6) has 2, be symmetricly set on axle center hole (3) around.
6. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: the hardness number Hv of described spiral bevel gear (0.1) is more than 600.
7. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: the carburizing thickness of described spiral bevel gear is more than 0.30mm.
8. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: below the roller seating space amplitude 0.07mm of the gear teeth of described spiral bevel gear (2).
9. powder metallurgy spiral bevel gear according to claim 1 is characterized in that: the gear teeth of described spiral bevel gear (2) in abutting connection with pitch error below 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200439390U CN201448418U (en) | 2009-06-08 | 2009-06-08 | Powder metallurgy spiral bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200439390U CN201448418U (en) | 2009-06-08 | 2009-06-08 | Powder metallurgy spiral bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448418U true CN201448418U (en) | 2010-05-05 |
Family
ID=42553134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200439390U Expired - Lifetime CN201448418U (en) | 2009-06-08 | 2009-06-08 | Powder metallurgy spiral bevel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454563A (en) * | 2019-08-22 | 2019-11-15 | 重庆聚能粉末冶金股份有限公司 | A kind of angle grinder spiral bevel gear pair and its preparation process |
-
2009
- 2009-06-08 CN CN2009200439390U patent/CN201448418U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454563A (en) * | 2019-08-22 | 2019-11-15 | 重庆聚能粉末冶金股份有限公司 | A kind of angle grinder spiral bevel gear pair and its preparation process |
| CN110454563B (en) * | 2019-08-22 | 2022-11-15 | 重庆聚能粉末冶金股份有限公司 | Spiral bevel gear pair of angle grinder and preparation process thereof |
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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 |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |