CN202971836U - Sun gear outer washer of heavy automobile axle hub reduction gear - Google Patents
Sun gear outer washer of heavy automobile axle hub reduction gear Download PDFInfo
- Publication number
- CN202971836U CN202971836U CN 201220704871 CN201220704871U CN202971836U CN 202971836 U CN202971836 U CN 202971836U CN 201220704871 CN201220704871 CN 201220704871 CN 201220704871 U CN201220704871 U CN 201220704871U CN 202971836 U CN202971836 U CN 202971836U
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- CN
- China
- Prior art keywords
- sun gear
- outer washer
- gear outer
- washer
- face
- 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 sun gear outer washer of a heavy automobile axle hub reduction gear. The sun gear outer washer is characterized in that the inner diameter of the sun gear outer washer is larger than the outer diameter of a sun gear, a plurality of bosses are axially arranged on the periphery at one end of the sun gear outer washer, and the number of the bosses is matched with that of planet gears. The sun gear outer washer has the technical advantages of being simple in structure, avoiding contact of the end face of the sun gear and the end face of the sun gear outer washer, avoiding heat produced by friction between the sun gear and the sun gear outer washer and reducing risk caused by overheating of the hub reduction gear.
Description
Technical field
The utility model relates to a kind of retarder, relates in particular to a kind of sun gear outer washer of heavy-duty vehicle bridge wheel reductor.
Background technique
At present, the vehicle bridge of heavy-duty car is slowed down has central single-stage speed reducing and central the deceleration to add the hub reduction double reduction, and the wheel reductor that the vehicle bridge deceleration of heavy-duty car is adopted usually is: 5 planet wheels, reduction speed ratio are 3.947.Wheel reductor is in work, and moment of torsion and rotating speed with semiaxis passes over drive the rotation of planet wheel and planet wheel shaft by sun gear, moment of torsion and rotating speed is delivered to the wheel limit subtracts shell, subtracts shell drive rotation of wheel by the wheel limit.In the process of moment of torsion and rotating speed transmission, moment of torsion increases, and rotating speed reduces, and reaches the deceleration purpose of wheel.In prior art, in the vehicle bridge wheel reductor of heavy-duty car, the axially locating of sun gear is to rely on sun gear inner washer and sun gear outer washer to realize, the linear velocity of the inside and outside packing ring relative movement of sun gear end face and sun gear is very high, the heat that produces due to friction between the inside and outside packing ring of sun gear end face and sun gear is very high, and the overheated risk in wheel limit is larger.
The model utility content
Problem for background technique, structure characteristic according to the sun gear outer washer that has the heavy-duty vehicle bridge wheel reductor now, the utility model proposes a kind of sun gear outer washer of heavy-duty vehicle bridge wheel reductor, its improvement is: the internal diameter of sun gear outer washer is greater than the external diameter of sun gear.
Further, in order to simplify the structure of sun gear outer washer, the utility model has also been done following improvement: axially be provided with a plurality of boss on the periphery of sun gear outer washer one end, the quantity of boss and the quantity of planet wheel are complementary.
Useful technique effect of the present utility model is: simple in structure, avoided contacting of sun gear end face and sun gear outer washer end face, and avoided the heat that produces because of friction between sun gear and sun gear outer washer, reduced the overheated risk of wheel reductor.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is sectional view of the present utility model;
Fig. 3 is the schematic diagram of prior art;
In figure: sun gear outer washer 1, boss 2, oil groove 3.
Embodiment
In prior art: due to the internal diameter of sun gear outer washer 1 external diameter less than sun gear, end face of sun gear outer washer 1 and an end contact of sun gear, the heavy-duty vehicle bridge wheel reductor is when work, between sun gear outer washer 1 and sun gear, relative movement is arranged, the linear velocity of sun gear end face and 1 relative movement of sun gear outer washer is very high, the heat that produces due to friction between sun gear end face and sun gear outer washer 1 is very high, and the overheated risk in wheel limit is larger.In order to reduce the friction between sun gear end face and sun gear outer washer 1, the utility model has been done following improvement to the internal diameter of sun gear outer washer 1: the internal diameter of sun gear outer washer 1 is greater than the external diameter of sun gear.In the utility model: due to the internal diameter of sun gear outer washer 1 external diameter greater than sun gear, the end face of sun gear outer washer 1 does not contact with the end face of sun gear, between sun gear outer washer 1 and sun gear without relative movement, avoid the heat that produces because of friction between sun gear and sun gear outer washer, reduced the overheated risk of wheel reductor.
in prior art: due to the internal diameter of sun gear outer washer 1 external diameter less than sun gear, end face of sun gear outer washer 1 and an end contact of sun gear, the heavy-duty vehicle bridge wheel reductor is when work, between sun gear outer washer 1 and sun gear, relative movement is arranged, the linear velocity of sun gear end face and 1 relative movement of sun gear outer washer is very high, the heat that produces due to friction between sun gear end face and sun gear outer washer 1 is very high, take turns the overheated risk in limit larger, therefore, in order to reduce the friction between sun gear end face and sun gear outer washer 1, prior art all radially is provided with two oil grooves 3 on two end faces of sun gear outer washer 1, in order to prevent that the planet wheel packing ring from rotating, prior art axially is provided with a plurality of boss 2 on the outer circumferential face of sun gear outer washer 1, but boss 2 is distributed on the whole outer circumferential face of sun gear outer washer 1.
In order to simplify the structure of sun gear outer washer 1 both ends of the surface, prevent that the planet wheel packing ring from rotating, cancelled the oil groove 3 on sun gear outer washer 1 both ends of the surface in the utility model, and the boss 2 of sun gear outer washer 1 has also been done following improvement: axially be provided with a plurality of boss 2 on the periphery of sun gear outer washer 1 one ends, the quantity of boss 2 and the quantity of planet wheel are complementary.
Claims (2)
1. the sun gear outer washer of a heavy-duty vehicle bridge wheel reductor, it is characterized in that: the internal diameter of described sun gear outer washer (1) is greater than the external diameter of sun gear.
2. the sun gear outer washer of heavy-duty vehicle bridge wheel reductor according to claim 1, it is characterized in that: axially be provided with a plurality of boss (2) on the periphery of sun gear outer washer (1) one end, the quantity of described boss (2) and the quantity of planet wheel are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704871 CN202971836U (en) | 2012-12-19 | 2012-12-19 | Sun gear outer washer of heavy automobile axle hub reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704871 CN202971836U (en) | 2012-12-19 | 2012-12-19 | Sun gear outer washer of heavy automobile axle hub reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971836U true CN202971836U (en) | 2013-06-05 |
Family
ID=48512913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704871 Expired - Lifetime CN202971836U (en) | 2012-12-19 | 2012-12-19 | Sun gear outer washer of heavy automobile axle hub reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971836U (en) |
-
2012
- 2012-12-19 CN CN 201220704871 patent/CN202971836U/en not_active Expired - Lifetime
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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: 20130605 |
|
| CX01 | Expiry of patent term |