CN203161968U - Bevel gear pair for tractor front axle - Google Patents
Bevel gear pair for tractor front axle Download PDFInfo
- Publication number
- CN203161968U CN203161968U CN 201320180084 CN201320180084U CN203161968U CN 203161968 U CN203161968 U CN 203161968U CN 201320180084 CN201320180084 CN 201320180084 CN 201320180084 U CN201320180084 U CN 201320180084U CN 203161968 U CN203161968 U CN 203161968U
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- gear
- teeth
- conical gear
- front axle
- 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 - Fee Related
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- Gears, Cams (AREA)
Abstract
The utility model discloses a bevel gear pair for a tractor front axle. The bevel gear pair comprises a small bevel gear and a large bevel gear meshed with the small bevel gear. The small bevel gear is provided with nine teeth, and the reference diameter is 51.21mm; and the large bevel gear is provided with39 teeth, and the reference diameter is 221.91mm. As compared with a conventional bevel gear pair, the large bevel gear pair has larger reference diameter and more teeth and is higher in transmission ratio, wider in tooth surface and higher in output torque, and thereby being more suitable for field requirements; meanwhile, height of teeth of the large and small bevel gears and overlap coefficient are increased, gear transmission is more stable, contact stress is reduced, transmission noises are lower, so that service life of gears are favorably prolonged; and carburizing and quenching layers of the tooth surfaces are deeper in depth, requirements of premature wear of the gears can be met, and the service life of the gears can be prolonged.
Description
Technical field
The utility model relates to a kind of gear pair, particularly a kind of cone gear pair.
Background technique
Wheeled tractor is in the working procedure of field, and its propons cone gear pair will be born very big load.And existing wheeled tractor propons cone gear pair, its velocity ratio is less, and the output torque is less, is less compliant in operation in China's arable land environment; Existing wheeled tractor propons cone gear pair of while, its gear teeth heat-treatment quenching layer is shallow, is prone to premature wear, and working life is shorter.
The model utility content
In view of this, the purpose of this utility model provides a kind of farm tractor front axle cone gear pair, and its velocity ratio is big, can export bigger torque, satisfy job requirements, it has darker quench hardened case simultaneously, premature wear is little, long service life, can solve existing cone gear secondary pure defective.
The utility model farm tractor front axle cone gear pair comprises small conical gear and the large conical gear that is engaged with; The number of teeth of described small conical gear is 9 teeth, and the calibration diameter of a circle is 51.21mm; The number of teeth of described large conical gear is 39 teeth, and the calibration diameter of a circle is 221.91mm.
Further, the addendum coefficient of described small conical gear is 0.85, and addendum is 7.23mm, and dedendum of the tooth is 3.20mm; The addendum coefficient of described large conical gear is 0.85, and addendum is 2.16mm, and dedendum of the tooth is 8.26mm;
Further, the flank of tooth carburizing and quenching layer depth of described small conical gear is 1.1～1.6mm, and the flank of tooth carburizing and quenching layer depth of described large conical gear also is 1.1～1.6mm;
Further, also be wholely set sprocket drive spindle on the described small conical gear;
Further, the axis central part of described gear shaft is provided with oil duct, and a port part of described oil duct is arranged on the end face of small conical gear, and the other end oral area of described oil duct is arranged on the bearing attachment face at gear shaft middle part.
The beneficial effects of the utility model: the utility model farm tractor front axle cone gear pair, the standard pitch diameter of its large conical gear increases with respect to secondary its standard pitch diameter of existing cone gear, the number of teeth increases, velocity ratio increases, flank of tooth broadening, output torque increases, and is more suitable in the farm work requirement; The tooth depth of large and small cone gear increases simultaneously, and overlap coefficient increases, and gear transmission is more steady, and contact stress reduces, and rotational noise is lower, is conducive to improve gear life; And its flank of tooth carburizing and quenching layer depth is darker, can satisfy the requirement of gear premature wear, and service life of gear is longer.
Description of drawings
Fig. 1 is the structural representation of the utility model farm tractor front axle cone gear pair.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in the figure, present embodiment farm tractor front axle cone gear pair comprises small conical gear 1 and the large conical gear 2 that is engaged with; The number of teeth of described small conical gear 1 is 9 teeth, and the calibration diameter of a circle is 51.21mm; The number of teeth of described large conical gear 2 is 39 teeth, and the calibration diameter of a circle is 221.91mm.
The utility model farm tractor front axle cone gear pair, the standard pitch diameter of its large conical gear 2 increases with respect to secondary its standard pitch diameter of existing cone gear, and the number of teeth increases, and velocity ratio increases, flank of tooth broadening, output torque increases, and is more suitable in the farm work requirement.
As the improvement to present embodiment, the addendum coefficient of described small conical gear 1 is 0.85, and addendum is 7.23mm, and dedendum of the tooth is 3.20mm; The addendum coefficient of described large conical gear 2 is 0.85, and addendum is 2.16mm, and dedendum of the tooth is 8.26mm.The tooth depth of large and small cone gear increases, and overlap coefficient increases, and gear transmission is more steady, and contact stress reduces, and rotational noise is lower, is conducive to improve gear life.
As the improvement to present embodiment, the flank of tooth carburizing and quenching layer depth of described small conical gear 1 is 1.4mm, certainly in different mode of executions, its flank of tooth carburizing and quenching layer depth also can be other value in 1.1～1.6mm scope, as can be 1.1mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.6 mm etc., the flank of tooth carburizing and quenching layer depth of described large conical gear 2 also is 1.4mm, certainly in different mode of executions, its flank of tooth carburizing and quenching layer depth yet can be other value in 1.1～1.6mm scope, as can be 1.1mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.6 mm etc.The flank of tooth carburizing and quenching layer depth of present embodiment cone gear pair is bigger, and the flank of tooth can satisfy the requirement of gear premature wear, prolongs the working life of gear.
As the improvement to this enforcement, also be wholely set sprocket drive spindle 3 on the described small conical gear 1, the integral structure good rigidly, bearing capacity is stronger, can better satisfy the requirement of tractor farm work.
As the improvement to this enforcement, the axis central part of described gear shaft 3 is provided with oil duct 4, and a port part 41 of described oil duct 4 is arranged on the end face of small conical gear 1, and the other end oral area 42 of described oil duct 4 is arranged on the bearing attachment face at gear shaft 3 middle parts.Can be to bearing and gear Surface of action fuel feeding by oil duct, the precision that is conducive to reduce the wearing and tearing of gear teeth face and guarantees spring bearing.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. a farm tractor front axle cone gear pair comprises small conical gear and the large conical gear that is engaged with; It is characterized in that: the number of teeth of described small conical gear is 9 teeth, and the calibration diameter of a circle is 51.21mm; The number of teeth of described large conical gear is 39 teeth, and the calibration diameter of a circle is 221.91mm.
2. farm tractor front axle cone gear pair according to claim 1, it is characterized in that: the addendum coefficient of described small conical gear is 0.85, and addendum is 7.23mm, and dedendum of the tooth is 3.20mm; The addendum coefficient of described large conical gear is 0.85, and addendum is 2.16mm, and dedendum of the tooth is 8.26mm.
3. farm tractor front axle cone gear pair according to claim 1, it is characterized in that: the flank of tooth carburizing and quenching layer depth of described small conical gear is 1.1～1.6mm, the flank of tooth carburizing and quenching layer depth of described large conical gear also is 1.1～1.6mm.
4. according to arbitrary described farm tractor front axle cone gear pair among the claim 1-3, it is characterized in that: also be wholely set sprocket drive spindle on the described small conical gear.
5. farm tractor front axle cone gear pair according to claim 4, it is characterized in that: the axis central part of described gear shaft is provided with oil duct, one port part of described oil duct is arranged on the end face of small conical gear, and the other end oral area of described oil duct is arranged on the bearing attachment face at gear shaft middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180084 CN203161968U (en) | 2013-04-11 | 2013-04-11 | Bevel gear pair for tractor front axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180084 CN203161968U (en) | 2013-04-11 | 2013-04-11 | Bevel gear pair for tractor front axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161968U true CN203161968U (en) | 2013-08-28 |
Family
ID=49023154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180084 Expired - Fee Related CN203161968U (en) | 2013-04-11 | 2013-04-11 | Bevel gear pair for tractor front axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161968U (en) |
-
2013
- 2013-04-11 CN CN 201320180084 patent/CN203161968U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140411 |