Bevel Gears PM Parts
At present, the powder metallurgy spiral bevel gear is one of the key parts used in the transmission mechanism of high-end tool products, such as electric tools, small construction machinery, etc. Its function is to output torque in different directions by cooperating with the paired gear to achieve stable speed change and transmission.
Product Description
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Bevel Gears PM Parts |
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Item |
Material |
Production Process |
Sintering Temperature |
Mold |
Custom |
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Bevel Gears |
440c |
Powder metallurgy sintering |
1550°C |
To be customized |
Yes |
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Chemical composition |
C: 0.95～1.20 Si: ≤1.00 Mn: ≤1.00 S : ≤0.030 P : ≤0.035 Cr: 16.00～18.00 Ni: allowed to contain ≤0.60 |
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Available Materials |
Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, hard alloy, high temperature alloy (718, 713) |
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The utility model relates to a spiral Bevel Gears PM Parts, in particular to a powder metallurgy spiral bevel gear.
Background technique:
At present, the powder metallurgy spiral bevel gear is one of the key parts used in the transmission mechanism of high-end tool products, such as electric tools, small construction machinery, etc. Its function is to output torque in different directions by cooperating with the paired gear to achieve stable speed change and transmission. Due to the use of helical gear transmission under the same force, the tooth contact ratio of the gear is greater than that of the traditional spur gear, so the design size of the entire product group can be reduced. And prepared gear in the prior art, the difference between part and part is bigger, and precision is not enough, all can not satisfy service requirement.
Summary of the utility model The purpose of the invention Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a powder metallurgy
Spiral bevel gears to achieve products with high precision and good dimensional stability.
Technical Solution In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the utility model is a powder metallurgy spiral bevel gear, comprising a gear body with a shaft center hole, at one end of the gear body
Bevel gear teeth are arranged on the surface; axial pin grooves are arranged on the shaft center hole. Radial grooves are provided on the end face provided with bevel gear teeth; flanges are provided on the other end face of the gear body, and there are two flanges symmetrically arranged on the shaft. around the heart hole. The axial center hole slightly extends outwards along the axial direction, and the extension direction is outwards from the end surface provided with the flange. The hardness value Hv (0.1) of the spiral bevel gear is above 600. The carburized thickness of the spiral bevel gear is above 0.30mm. The tooth groove amplitude of the spiral bevel gear is below 0.07mm. The adjacent pitch error of the spiral bevel gear is below 0.02mm. 0g/cm3上。 The material of the powder metallurgy spiral bevel gear of the present invention is Fe-Cu-Ni-Mo alloy, the density is above 7. 0g/cm3. The iron-based raw materials are warm-pressed and formed under certain conditions, and the technical route of carburizing after high-temperature sintering is adopted to ensure the sintering strength of the product and the wear resistance after carburizing. In addition, special warm-press lubrication is added during the pre-alloying process. The raw material of the agent can make the alloy elements diffuse more evenly, achieve complete alloying, and fully improve the comprehensive performance of the material. Through such a production process, it is effectively ensured that the hardness value Hv (0.1) of the spiral bevel gear is above 600, the carburizing thickness is above 0.30mm, the tooth groove amplitude is below 0.07mm, and the adjacent tooth pitch error is 0. .02mm or less. Beneficial effects The spiral bevel gear is a high-precision, high-strength powder metallurgy spiral bevel gear part successfully produced through the powder metallurgy process. The hardness value Hv (0.1) of the spiral bevel gear is above 600, the carburized thickness is above 0.30mm, the tooth groove amplitude is below 0.07mm, and the adjacent pitch error is below 0.02mm. The spiral bevel gear is used in high-grade tool products, and it can output torque in different directions by cooperating with the paired gear. The spiral Bevel Gears PM Parts has a unique shape design, which can meet the requirements of light weight and small size of new tool products. High precision ensures smooth operation, low noise and energy saving.
Detailed ways
One end face of described gear body 1 is provided with bevel gear tooth 2; On described axis hole 3, be provided with axial pin groove 4. Be provided with radial groove 5 on the end face that is provided with bevel gear tooth 2; Be provided with flange 6 on the other end face of gear body 1, described flange 6 has 2, is symmetrically arranged on the axis around hole 3. The shape of the groove 5 can be a regular or irregular shape, and it is arranged on the periphery of the shaft hole 3 and the inside of the gear tooth 2. The axial center hole 3 extends slightly outward along the axial direction, and the extension direction is to extend outward from the end surface provided with the flange 6 . 0g/cm3上。 The material of the powder metallurgy spiral bevel gear of the present invention is Fe-Cu-Ni-Mo alloy, the density is above 7. 0g/cm3. The iron-based raw materials are warm-pressed and formed under certain conditions, and the technical route of carburizing after high-temperature sintering is adopted to ensure the sintering strength of the product and the wear resistance after carburizing. In addition, special warm-press lubrication is added during the pre-alloying process. The raw material of the agent can make the alloy elements diffuse more evenly, achieve complete alloying, and fully improve the comprehensive performance of the material. Through such a production process, the hardness and precision of the spiral bevel gear are effectively guaranteed. After testing, the hardness value Hv (0.1) of the spiral bevel gear is more than 600, the carburized thickness is more than 0.30mm, the tooth groove amplitude is less than 0.07mm, and the adjacent tooth pitch error is less than 0.02mm. The spiral bevel gear is used in high-end tool products, and it can output torque in different directions by cooperating with the paired gear. The spiral bevel gear has a unique shape design, which can meet the requirements of light weight and small size of new tool products. High precision ensures smooth operation, low noise and energy saving.
Claims to a powder metallurgy spiral bevel gear, comprising a gear body (1) with a central hole (3), characterized in that bevel gear teeth (2) are arranged on one end face of the gear body (1) ); An axial pin groove (4) is provided on the described axial center hole (3).
2. The powder metallurgy spiral bevel gear according to claim 1, characterized in that radial grooves (5) are provided on the end face provided with bevel gear teeth (2).
3. The powder metallurgy spiral bevel gear according to claim 1, characterized in that the axial center hole (3) extends slightly outward along the axial direction.
4. The powder metallurgy spiral bevel gear according to claim 1, characterized in that a flange (6) is provided on the other end face of the gear body (1).
5. The powder metallurgy spiral bevel gear according to claim 4, characterized in that there are two flanges (6), symmetrically arranged around the axial hole (3).
6. The powder metallurgy spiral bevel gear according to claim 1, characterized in that the hardness value Hv (O. 1) of the spiral bevel gear is above 600.
7. The powder metallurgy spiral bevel gear according to claim 1, characterized in that the carburized thickness of the spiral bevel gear is above O. 30mm.
8. powder metallurgy spiral bevel gear according to claim 1, is characterized in that the gear tooth (2) of described spiral bevel gear is less than 0.07mm of tooth groove amplitude.
9. The powder metallurgy spiral bevel gear according to claim 1, characterized in that the adjacent pitch error of the gear teeth (2) of the spiral bevel gear is below 0.02mm.
Abstracts of the patent The utility model discloses a powder metallurgy spiral bevel gear. It comprises a gear body with a shaft center hole, bevel gear teeth are arranged on one end face of the gear body, and axial pin grooves are arranged on the shaft center hole. The spiral bevel gear is a high-precision, high-strength powder metallurgy spiral bevel gear part successfully produced through powder metallurgy technology. The hardness value Hv (0.1) of the spiral bevel gear is above 600, the carburized thickness is above 0.30mm, the tooth groove amplitude is below 0.07mm, and the pitch error between adjacent teeth is below 0.02mm. The spiral bevel gear is used in high-end tool products, and it can output torque in different directions by cooperating with the paired gear. The spiral bevel gear has a unique shape design, which can meet the requirements of light weight and small size of new tool products. High precision ensures smooth operation, low noise and energy saving.
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