CN202992122U - Heavy-duty car axle hub reductor structure - Google Patents
Heavy-duty car axle hub reductor structure Download PDFInfo
- Publication number
- CN202992122U CN202992122U CN 201220704892 CN201220704892U CN202992122U CN 202992122 U CN202992122 U CN 202992122U CN 201220704892 CN201220704892 CN 201220704892 CN 201220704892 U CN201220704892 U CN 201220704892U CN 202992122 U CN202992122 U CN 202992122U
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- CN
- China
- Prior art keywords
- sun gear
- sun wheel
- wheel
- reductor
- outer washer
- 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 heavy-duty car axle hub reductor structure which comprises a sun wheel, an outer sun wheel gasket, a half shaft, an end cover, a hub reductor shell, multiple planet wheels, a clamping ring and multiple planet wheel gaskets. The inner diameter of the outer sun wheel gasket is larger than the outer diameter of the sun wheel, a retaining ring is arranged between the sun wheel and the clamping ring, an axial limiting device of the half shaft is arranged at the center of the end cover and comprises an adjusting screw and an adjusting nut, multiple bosses are axially arranged at one end of the outer sun wheel, the number of the bosses is matched with that of the planet wheels, the other end, without multiple bosses, of the outer sun wheel gasket is matched with the hub reductor shell, and the outer sun wheel gasket presses on the multiple planet wheel gaskets. The heavy-duty car axle hub reductor structure has the advantages that the structure is simplified, contacting face between the sun wheel and a limiting part is reduced, heat generated by friction between the sun wheel and the limiting part is reduced, and the risk of an overheat hub reductor is lowered.
Description
Technical field
The utility model relates to a kind of retarder, relates in particular to a kind of heavy-duty vehicle bridge wheel reductor structure.
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 are delivered to the wheel reductor housing, drives rotation of wheel by the wheel reductor housing.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, axial positioning structure feature according to existing sun gear and the semiaxis of heavy-duty vehicle bridge wheel reductor, the utility model proposes a kind of heavy-duty vehicle bridge wheel reductor structure, comprise sun gear, sun gear outer washer, semiaxis, end cap, wheel reductor housing, a plurality of planet wheel, collar and a plurality of planet wheel packing ring, its improvement is: the internal diameter of sun gear outer washer is greater than the external diameter of sun gear, be provided with back-up ring between sun gear and collar, the center of end cap is provided with the axially stop block of semiaxis.
Further, for convenient axial clearance of regulating between semiaxis and limit stoper, reduce the surface of contact of semiaxis and limit stoper, reduce the heat that produces because of friction between semiaxis and limit stoper, the utility model has also been done following improvement: the axially stop block of semiaxis comprises adjusting screw and adjusting nut.
Further, for simplified structure, prevent that better the planet wheel packing ring from rotating, reduce the heat that produces because of friction between planet wheel and planet wheel packing ring, the utility model has also been done following improvement: an end of sun gear outer washer axially is provided with a plurality of boss, and the quantity of boss and the quantity of planet wheel are complementary; The end that the sun gear outer washer of a plurality of boss is not set coordinates with the wheel reductor housing, and the connecting end surface that is provided with a plurality of boss on the sun gear outer washer and a plurality of boss are not set is pressed on a plurality of planet wheel packing rings.
Useful technique effect of the present utility model is: designs simplification, reduced the surface of contact between sun gear and spacing part, and reduced the heat that produces because of friction between sun gear and spacing part, reduced the overheated risk of wheel reductor.
Description of drawings
Fig. 1 is the schematic diagram that partly cuts open of the present utility model;
Fig. 2 be prior art partly cut open schematic diagram;
Fig. 3 is sun gear outer washer schematic diagram of the present utility model;
Fig. 4 is sun gear outer washer sectional view of the present utility model;
Fig. 5 is the sun gear outer washer schematic diagram of prior art;
Fig. 6 is the back-up ring schematic diagram;
In figure: sun gear 1, sun gear outer washer 2, boss 2-1, oil groove 2-2, semiaxis 3, end cap 4, wheel reductor housing 5, planet wheel 6, collar 7, planet wheel packing ring 8, back-up ring 9, adjusting screw 10, adjusting nut 11, plug 12, collar 13, jump ring 14.
Embodiment
In prior art, the internal diameter of sun gear outer washer 2 is less than the external diameter of sun gear 1, sun gear outer washer 2 one ends directly contact with the end face of sun gear 1, the other end of sun gear outer washer 2 contacts with collar 13, collar 13 is stuck in wheel reductor housing 5, collar 7 and jump ring 14 are stuck on the semiaxis 3 at sun gear 1 two ends, carry out axially locating by sun gear outer washer 2, sun gear inner washer, collar 7, collar 13 and 14 pairs of sun gears 1 of jump ring and semiaxis 3, prevent the outside axial float of sun gear 1 and semiaxis 3.Structure of the present utility model is, comprise sun gear 1, sun gear outer washer 2, semiaxis 3, end cap 4, wheel reductor housing 5, a plurality of planet wheel 6, collar 7 and a plurality of planet wheel packing ring 8, its improvement is: the internal diameter of sun gear outer washer 2 is greater than the external diameter of sun gear 1, be provided with back-up ring 9 between sun gear 1 and collar 7, the center of end cap 4 is provided with the axially stop block of semiaxis 3.
In the utility model, the internal diameter of sun gear outer washer 2 is greater than the external diameter of sun gear 1, the end face of sun gear outer washer 2 does not contact with the end face of sun gear 1, sun gear outer washer 2 can not carry out axially locating to sun gear 1 and semiaxis 3, therefore, for sun gear 1 and semiaxis 3 are carried out axially locating, in the utility model, increased back-up ring 9 and prevented the axial float that sun gear 1 is outside between sun gear 1 and collar 7, increase the axially stop block of semiaxis 3 in the center of end cap 4, prevented the axial float that semiaxis 3 is outside.In the utility model, because the end face of sun gear outer washer 2 does not contact with the end face of sun gear 1, between back-up ring 9 and sun gear 1 without relative movement, therefore, the utility model has reduced collar 13 and jump ring 14, simplifies the structure, and has reduced the surface of contact between sun gear 1 and spacing part, reduce the heat that produces because of friction between sun gear 1 and spacing part, reduced the overheated risk of wheel reductor.
Further, for convenient axial clearance of regulating between semiaxis 3 and limit stoper, the utility model has also been done following improvement: the axially stop block of semiaxis 3 comprises adjusting screw 10 and adjusting nut 11.Adjusting screw 10 is very little with the surface of contact of semiaxis 3, can reduce the heat that produces because of friction between semiaxis 3 and limit stoper, can realize simultaneously in the situation that do not dismantle end cover of hub reduction gear to the adjustment of sun gear 1 with semiaxis 3 axial clearances.
In prior art: due to two end faces of sun gear outer washer 2 and the end contact of sun gear 1 and collar 13, in order to reduce between sun gear 1 and sun gear outer washer 2 and collar 13 because of friction, therefore, two of sun gear outer washer 2 end faces all radially are provided with two oil groove 2-2; Refuel and sealing for convenient, also be provided with tank filler sleeve and plug 12 on end cap 4; In order to prevent that planet wheel packing ring 8 from rotating, axially be provided with a plurality of boss 2-1 at the outer circumferential face of sun gear outer washer 2, boss 2-1 is distributed in the whole outer circumferential face of sun gear outer washer 2; Be distributed in the whole outer circumferential face of sun gear outer washer 2 due to boss 2-1, for to sun gear outer washer 2 location, more than be provided with a collar 13.
in the utility model: because the end face of sun gear outer washer 2 does not contact with the end face of sun gear 1, sun gear outer washer 2 no longer plays axial limiting to sun gear 1, therefore, in order to simplify the structure of sun gear outer washer 2 both ends of the surface, prevent that planet wheel packing ring 8 from rotating, reduce the heat that 8, planet wheel 6 and planet wheel packing ring produce because of friction, not only reduced the oil groove 2-2 of sun gear outer washer 2 both ends of the surface in the utility model, and sun gear outer washer 2 has also been done following improvement: sun gear outer washer 2 one ends axially be provided with a plurality of boss 2-1, the quantity of the quantity of boss 2-1 and planet wheel 6 is complementary, the end that the sun gear outer washer 2 of a plurality of boss 2-1 is not set coordinates with wheel reductor housing 5, the connecting end surface that is provided with a plurality of boss 2-1 on sun gear outer washer 2 and a plurality of boss 2-1 are not set is pressed on a plurality of planet wheel packing rings 8, the rotation of a plurality of planet wheel packing rings 8 of the fitting surface of a plurality of boss 2-1 restriction on sun gear outer washer 2.In the utility model, sun gear outer washer 2 not only can self poisoning, but also can prevent that planet wheel packing ring 8 from rotating, and structure is more simplified.
Claims (3)
1. heavy-duty vehicle bridge wheel reductor structure, comprise sun gear (1), sun gear outer washer (2), semiaxis (3), end cap (4), wheel reductor housing (5), a plurality of planet wheel (6), collar (7) and a plurality of planet wheel packing ring (8), it is characterized in that: the internal diameter of sun gear outer washer (2) is greater than the external diameter of sun gear (1), be provided with back-up ring (9) between sun gear (1) and collar (7), the center of end cap (4) is provided with the axially stop block of semiaxis (3).
2. heavy-duty vehicle bridge wheel reductor structure according to claim 1, it is characterized in that: the axially stop block of described semiaxis (3) comprises adjusting screw (10) and adjusting nut (11).
3. heavy-duty vehicle bridge wheel reductor structure according to claim 1 and 2, it is characterized in that: an end of described sun gear outer washer (2) axially is provided with a plurality of boss (2-1), and the quantity of the quantity of boss (2-1) and planet wheel (6) is complementary; The end that the sun gear outer washer (2) of a plurality of boss (2-1) is not set coordinates with wheel reductor housing (5), and the connecting end surface that is provided with a plurality of boss (2-1) on sun gear outer washer (2) and a plurality of boss (2-1) are not set is pressed on a plurality of planet wheel packing rings (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704892 CN202992122U (en) | 2012-12-19 | 2012-12-19 | Heavy-duty car axle hub reductor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704892 CN202992122U (en) | 2012-12-19 | 2012-12-19 | Heavy-duty car axle hub reductor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992122U true CN202992122U (en) | 2013-06-12 |
Family
ID=48563303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704892 Expired - Lifetime CN202992122U (en) | 2012-12-19 | 2012-12-19 | Heavy-duty car axle hub reductor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179857A (en) * | 2014-08-15 | 2014-12-03 | 江西省分宜驱动桥有限公司 | Self-circulation cooling system for wet-type braking drive axle |
| CN108691999A (en) * | 2017-03-29 | 2018-10-23 | 本田技研工业株式会社 | Planetary gear mechanism |
| CN114294381A (en) * | 2021-12-17 | 2022-04-08 | 东风汽车零部件(集团)有限公司刃量具分公司 | Planetary reducer |
-
2012
- 2012-12-19 CN CN 201220704892 patent/CN202992122U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179857A (en) * | 2014-08-15 | 2014-12-03 | 江西省分宜驱动桥有限公司 | Self-circulation cooling system for wet-type braking drive axle |
| CN108691999A (en) * | 2017-03-29 | 2018-10-23 | 本田技研工业株式会社 | Planetary gear mechanism |
| CN114294381A (en) * | 2021-12-17 | 2022-04-08 | 东风汽车零部件(集团)有限公司刃量具分公司 | Planetary reducer |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |