CN211574202U - Spiral bevel gear of main reducer of drive axle of loader - Google Patents
Spiral bevel gear of main reducer of drive axle of loader Download PDFInfo
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- CN211574202U CN211574202U CN201922363516.3U CN201922363516U CN211574202U CN 211574202 U CN211574202 U CN 211574202U CN 201922363516 U CN201922363516 U CN 201922363516U CN 211574202 U CN211574202 U CN 211574202U
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Abstract
The utility model discloses a spiral bevel gear of a main reducer of a drive axle of a loader, which comprises a driven spiral bevel gear and a driving spiral bevel gear; the driven spiral bevel gear and the driving spiral bevel gear are designed by equal-height teeth, the modulus of the driven spiral bevel gear and the driving spiral bevel gear is 11.2, and the spiral angle is 35 degrees; the specific parameters of the driven spiral bevel gear are a gear ratio of 37, a tooth crest height of 2.54 and a tooth root height of 15.26, and the specific parameters of the driving spiral bevel gear are a gear ratio of 7, a tooth crest height of 13.27 and a tooth root height of 4.4. The utility model has high processing efficiency, small deformation after heat treatment, stable transmission of the processed bevel gear and effective reduction of manufacturing cost; on the other hand, by increasing the spiral angle to 35 degrees and increasing the modulus to 11.2, the contact strength of the gear can be improved, the failure rate of pitting corrosion of the driving spiral bevel gear 2 is effectively reduced, and the reliability and the service life of the drive axle are improved.
Description
Technical Field
The utility model relates to a loader transaxle final drive, concretely relates to loader transaxle final drive spiral bevel gear.
Background
At present, a spiral bevel gear structure is commonly adopted for primary speed reduction of a main speed reducer of a drive axle of a domestic mainstream loader, and comprises a driving spiral bevel gear and a driven spiral bevel gear, wherein the driving spiral bevel gear and the driven spiral bevel gear in the main speed reducer are designed by reduction teeth, the spiral angle is 25 degrees, the modulus is 11.1, the specific parameters of the driving spiral bevel gear are the gear ratio of 7, the tooth top height of 13.653 and the tooth root height of 7.304, and the specific parameters of the driven spiral bevel gear are the gear ratio of 37, the tooth top height of 5.217 and the tooth root height of 36; the spiral bevel gear of the main speed reducer with the structure has the following defects: firstly, because of the adoption of the design of reducing teeth, the domestic processing machine tool is generally an old machine tool with poor processing precision, the adjustment can not be carried out in the processing process, the processing efficiency is low, the deformation of a processed part after heat treatment is large, and the transmission is not stable when the processed part is used as a finished product; secondly, due to the design of a spiral angle of 25 degrees, the driving spiral bevel gear is easy to generate pitting failure due to insufficient contact strength caused by low overlapping coefficient.
Disclosure of Invention
The utility model aims at overcoming above-mentioned defect, providing a preparation and maintenance cost are low, use reliable longe-lived loader transaxle spiral bevel gear to solve the following two point problems that exist among the prior art: firstly, because of the adoption of the design of reducing teeth, the domestic processing machine tool is generally an old machine tool with poor processing precision, the adjustment can not be carried out in the processing process, the processing efficiency is low, the deformation of a processed part after heat treatment is large, and the transmission is not stable when the processed part is used as a finished product; secondly, due to the design of a spiral angle of 25 degrees, the driving spiral bevel gear is easy to generate pitting failure due to insufficient contact strength caused by low overlapping coefficient.
In order to achieve the purpose, the spiral bevel gear of the main speed reducer of the loader drive axle comprises a driven spiral bevel gear and a driving spiral bevel gear; the driven spiral bevel gear and the driving spiral bevel gear are designed by equal-height teeth, the modulus of the driven spiral bevel gear and the driving spiral bevel gear is 11.2, and the spiral angle is 35 degrees; the specific parameters of the driven spiral bevel gear are a gear ratio of 37, a tooth crest height of 2.54 and a tooth root height of 15.26, and the specific parameters of the driving spiral bevel gear are a gear ratio of 7, a tooth crest height of 13.27 and a tooth root height of 4.4.
The spiral bevel gear of the main reducer of the loader drive axle has the advantages that the driving spiral bevel gear and the driven spiral bevel gear adopt the design of equal-height teeth, and the technical characteristics and the beneficial effects are as follows:
1. the spiral bevel gear of the main speed reducer adopts a constant-height gear design, the processing machine tools are all numerical control equipment, the processing precision is high, adjustment can be carried out according to online detection in the processing process, the processing efficiency is high, the deformation after heat treatment is small, the transmission is stable when the finished bevel gear is applied, and the processing cost can be effectively reduced;
2. the spiral bevel gear of the main speed reducer is designed by adopting a spiral angle of 35 degrees, the overlapping coefficient is high, the contact strength is favorably improved, the modulus is increased to 11.2, the failure rate of pitting corrosion of the driving spiral bevel gear is effectively reduced, and the service life of equipment is prolonged.
Drawings
Fig. 1 is a schematic view of the spiral bevel gear structure of the main speed reducer of the drive axle of the loader of the present invention.
Reference numerals: a driven spiral bevel gear 1 and a driving spiral bevel gear 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the spiral bevel gear of the main speed reducer of the loader drive axle of the present invention includes a driven spiral bevel gear 1 and a driving spiral bevel gear 2; the driven spiral bevel gear 1 and the driving spiral bevel gear 2 adopt an equal-height tooth design, the modulus of the tooth is 11.2, and the helical angle is 35 degrees; the specific parameters of the driven spiral bevel gear 1 are a gear ratio of 37, a tooth top height of 2.54 and a tooth root height of 15.26, and the specific parameters of the driving spiral bevel gear 2 are a gear ratio of 7, a tooth top height of 13.27 and a tooth root height of 4.4.
According to the spiral bevel gear of the main speed reducer, on one hand, by adopting the design of equal-height teeth, the machining machine tool is numerical control equipment, the machining precision is high, adjustment can be performed according to online detection in the machining process, the machining efficiency is high, the deformation after heat treatment is small, the transmission of the machined bevel gear is stable, and the manufacturing cost is effectively reduced; on the other hand, by increasing the spiral angle to 35 degrees and increasing the modulus to 11.2, the contact strength of the gear can be improved, and the failure rate of the pitting corrosion of the driving spiral bevel gear 2 is effectively reduced; finally, the reliability of the drive axle is improved and the service life is prolonged.
Claims (1)
1. A spiral bevel gear of a main speed reducer of a loader drive axle comprises a driven spiral bevel gear and a driving spiral bevel gear; the method is characterized in that: the driven spiral bevel gear and the driving spiral bevel gear are designed by equal-height teeth, the modulus of the driven spiral bevel gear and the driving spiral bevel gear is 11.2, and the spiral angle is 35 degrees; the specific parameters of the driven spiral bevel gear are a gear ratio of 37, a tooth crest height of 2.54 and a tooth root height of 15.26, and the specific parameters of the driving spiral bevel gear are a gear ratio of 7, a tooth crest height of 13.27 and a tooth root height of 4.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363516.3U CN211574202U (en) | 2019-12-25 | 2019-12-25 | Spiral bevel gear of main reducer of drive axle of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363516.3U CN211574202U (en) | 2019-12-25 | 2019-12-25 | Spiral bevel gear of main reducer of drive axle of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574202U true CN211574202U (en) | 2020-09-25 |
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ID=72549285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922363516.3U Active CN211574202U (en) | 2019-12-25 | 2019-12-25 | Spiral bevel gear of main reducer of drive axle of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574202U (en) |
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2019
- 2019-12-25 CN CN201922363516.3U patent/CN211574202U/en active Active
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