CN204153118U - A kind of differential lubrication system - Google Patents
A kind of differential lubrication system Download PDFInfo
- Publication number
- CN204153118U CN204153118U CN201420624253.1U CN201420624253U CN204153118U CN 204153118 U CN204153118 U CN 204153118U CN 201420624253 U CN201420624253 U CN 201420624253U CN 204153118 U CN204153118 U CN 204153118U
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- differential
- gear
- pad
- rear case
- front shell
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Abstract
A kind of differential lubrication system, it relates to a kind of lubrication system.The purpose of this utility model is to solve existing differential lubrication system imperfection, the problem of lubrication effect difference.It is stifled that differential gear of the present utility model is provided with differential gear oil, front shell of differential body is provided with some casting holes, casting hole with the center of front case for the even annular arranged in arrays in the center of circle, the inwall that front shell of differential body and differential gear adjust pad contacts is provided with the first straight oil groove, the inwall that differential mechanism rear case and differential gear adjust pad contacts is provided with the second straight oil groove, the inwall that differential mechanism rear case contacts with spherical pad is provided with oil groove, differential gear adjustment pad and spherical pad are equipped with oilhole, the first oil nozzle is provided with outside casting hole, lubricant oil enters differential mechanism inside by casting hole.The utility model achieves the comprehensive lubrication of differential mechanism inside, and ensure that between each part, lubrication connects, lubrication effect is good, and reliability is high.
Description
Technical field
The utility model relates to a kind of lubrication system, is specifically related to a kind of differential lubrication system, belongs to automobile differential lubrication technical field.
Background technique
The differential that differential mechanism can realize two wheels travels, essential in modern vehicle.Existing differential mechanism generally comprises differential casing, planetary pinion, differential gear, spherical pad, differential gear pad, gear shaft, gear shaft spring bolt, and claimed structure is compact, and assembling is simple, safe and reliable.Differential mechanism is all generally splash lubrication, relies on gear to stir the lubricant oil flying up and, lubrication inner body.
Automobile in sand-gravel surface, the severe sections of road in hill path, muddy road surface, many detours face etc. time, vehicle right and left driving wheel differential is frequent or the differential time is longer, the part of differential mechanism internal motion pair is by long-time high loaded process, the even high temperature sintering that sharply weares and teares easily is there is when insufficient lubrication, cause differential mechanism damage parts, and then cause whole automobile to break down.
How providing a kind of simply compact, easy to assembly, lubrication effect is good, reliability is high differential mechanism, is those skilled in the art's problems urgently to be resolved hurrily.
Summary of the invention
The purpose of this utility model is to solve existing differential lubrication system imperfection, the problem of lubrication effect difference.
The technical solution of the utility model is: a kind of differential lubrication system, comprise front shell of differential body, differential mechanism rear case, planetary pinion, differential gear, gear shaft positioning block, spool gear axle, short gear axle and spring bolt is provided with in the cavity that described front shell of differential body and differential mechanism rear case surround, described planetary pinion and be equipped with spherical pad between front shell of differential body and differential mechanism rear case, described differential gear and be equipped with differential gear between front shell of differential body and differential mechanism rear case and adjust pad, planetary pinion and differential gear engagement;
It is stifled that described differential gear is provided with differential gear oil, described front shell of differential body is provided with some casting holes, described casting hole with the center of front case for the even annular arranged in arrays in the center of circle, the inwall that front shell of differential body and differential gear adjust pad contacts is provided with the first straight oil groove, and differential mechanism rear case and differential gear adjust
The inwall of pad contacts is provided with the second straight oil groove, the inwall that differential mechanism rear case contacts with spherical pad is provided with oil groove, described differential gear adjustment pad and spherical pad are equipped with some oilholes, be provided with the first oil nozzle outside described casting hole, lubricant oil enters differential mechanism inside by casting hole.
The inwall that described front shell of differential body contacts with differential gear is provided with the first helical oil groove, the inwall that differential mechanism rear case contacts with differential gear is provided with the second helical oil groove, the surface of contact of the axis hole of the optical axis that the first helical oil groove is differential gear and front shell of differential body provides lubricant oil, and the second helical oil groove provides lubricant oil for the axis hole surface of contact of differential gear and differential mechanism rear case.
The oily flat horizontal surface that described spool gear axle is parallel with the cylndrical surface of short gear axle being arranged with two, the transition portion of described oily flat horizontal surface and cylndrical surface is fillet, this fillet is used for ensureing gear shaft coating difficult drop-off, and oily flat horizontal surface ensures spool gear axle, lubrication between short gear axle and planetary pinion.
The even annular arranged in arrays of oilhole of described differential gear adjustment pad, when the difference of differential gear adjustment pad internal-and external diameter is less, some oilholes are all in the circumferentially equal distribution of same circle, wherein a part of oilhole equal distribution on a circle when the difference of differential gear adjustment pad internal-and external diameter is larger, other oilholes are equal distribution on another concentric circle, and whole pad can be lubricated fully.
The utility model compared with prior art has following effect: lubricant oil is introduced differential mechanism inside by casting hole by the utility model, the oil groove of front shell of differential body and differential mechanism rear case, oilhole on differential gear adjustment pad and the oilhole on spherical pad cooperatively interact, form a whole set of lubrication system, the back side that described straight oil groove adjusts pad and differential gear for differential gear provides lubricant oil, , the oil groove offered on the inwall contacted with spherical pad of described differential mechanism rear case provides lubricant oil for spherical pad and the planetary back side, the oilhole of differential gear adjustment pad ensures differential casing, lubrication between differential gear adjustment pad and the back side of differential gear, the oilhole of spherical pad ensures differential mechanism rear case, lubrication between spherical pad and the planetary back side, differential gear oil is stifled ensures that differential mechanism lubricant oil can not flow out from the endoporus of differential gear, achieve the comprehensive lubrication of differential mechanism inside, ensure that between each part, lubrication connects, lubrication effect is good, reliability is high.
Accompanying drawing explanation
Fig. 1 is the main sectional view of overall structure of the present utility model;
Fig. 2 is the structural representation of front shell of differential body;
Fig. 3 is the sectional view of front shell of differential body;
Fig. 4 is the structural representation of differential mechanism rear case;
Fig. 5 is the sectional view of differential mechanism rear case;
Fig. 6 is differential gear adjustment pad is single footpath 6 hole structure schematic diagram;
Fig. 7 is differential gear adjustment pad is two footpaths 8 hole structure schematic diagram;
Fig. 8 is spool gear axle and short gear axle cross-sectional view;
Fig. 9 is the structural representation of spherical pad.
1-front shell of differential body in figure, 2-differential mechanism rear case, 3-planetary pinion, 4-differential gear, 5-differential gear oil is stifled, 6-differential gear adjustment pad, 7-spherical pad, 8-gear shaft positioning block, 9-spool gear axle, 10-short gear axle, 11-spring bolt, 12-housing attachment screw, 13-first oil nozzle, 14-second oil nozzle, 15-the 3rd oil nozzle, 16-casting hole, 17-first helical oil groove, the straight oil groove of 18-first, 19-second helical oil groove, the straight oil groove of 20-second, 21-oil groove.
Embodiment
Accompanying drawings embodiment of the present utility model: differential mechanism of the present utility model comprises front shell of differential body 1, differential mechanism rear case 2, planetary pinion 3, differential gear 4, differential gear oil stifled 5, differential gear adjustment pad 6, spherical pad 7, gear shaft positioning block 8, spool gear axle 9, short gear axle 10, spring bolt 11, housing attachment screw 12, first oil nozzle 13, second oil nozzle 14 and the 3rd oil nozzle 15, first oil nozzle 13, second oil nozzle 14 and the 3rd oil nozzle 15 are formed forces injection system, and housing attachment screw 12 is by front shell of differential body 1, differential mechanism rear case 2 links together, front shell of differential body 1, above differential mechanism rear case 2, the hole of holder housing attachment screw 12 can be arranged symmetrically with, when front shell of differential body 1 will be reduced and the respective coaxality of differential mechanism rear case 2 requires, need to ensure front shell of differential body 1 and differential mechanism rear case 2 one-to-one relationship at circumferencial direction, now front shell of differential body 1, above differential mechanism rear case 2, the hole of holder housing attachment screw 12 can be asymmetric relation, and after this differential mechanism has assembled, housing attachment screw 12 can retain, and in order to alleviate differential mechanism quality, housing attachment screw 12 can be pulled down.
In the inner chamber that front shell of differential body 1 and differential mechanism rear case 2 are formed, planetary pinion 3 and differential gear 4 are housed, spherical pad 7 is had between planetary pinion 3 and front shell of differential body 1, at differential gear 4 and front shell of differential body 1, differential gear is had to adjust pad 6 between differential mechanism rear case 2, planetary pinion 3 and differential gear 4 engage each other, the back lash of planetary pinion 3 and differential gear 4 is ensured by the thickness of adjustment differential gear adjustment pad 6, spring bolt 11 axially locating spool gear axle 9 and short gear axle 10, gear shaft positioning block 8 connects spool gear axle 9 and short gear axle 10 by four holes, two holes of gear shaft positioning block 8 are passed by spool gear axle 9, the non-locking pin-and-hole end of two short gear axles 10 inserts in two other hole of gear shaft positioning block 8, spool gear axle 9 and short gear axle 10 radial location planetary pinion 3,
Spring bolt 11 is arranged in the locking pin-and-hole of differential mechanism rear case 2, locking pin-and-hole left end is tiny, spring bolt 11 can not be deviate from from the left end of differential mechanism rear case 2, spring bolt 11 right-hand member can not be deviate to the right by front shell of differential body 1 is spacing, spring bolt 11 can make spring pin form, and the spring bolt about 11 of spring pin form does not need spacing.
Described differential gear 4 is provided with differential gear oil stifled 5, described front shell of differential body 1 is provided with some casting holes 16, described casting hole 16 with the center of front case for the even annular arranged in arrays in the center of circle, front shell of differential body 1 and differential gear adjust the inwall that pad 6 contacts and are provided with the first straight oil groove 18, differential mechanism rear case 2 and differential gear adjust the inwall that pad 6 contacts and are provided with the second straight oil groove 20, the inwall that differential mechanism rear case 2 contacts with spherical pad 7 is provided with oil groove 21, described differential gear adjustment pad 6 and spherical pad 7 are equipped with some oilholes, the first oil nozzle 13 is provided with outside described casting hole 16, lubricant oil enters differential mechanism inside by casting hole 16.
The inwall that described front shell of differential body 1 contacts with differential gear 4 is provided with the first helical oil groove 17, and the inwall that differential mechanism rear case 2 contacts with differential gear 4 is provided with the second helical oil groove 19.
The oily flat horizontal surface that described spool gear axle 9 is parallel with the cylndrical surface of short gear axle 10 being arranged with two, the transition portion of described oily flat horizontal surface and cylndrical surface is fillet.
The even annular arranged in arrays of oilhole of described differential gear adjustment pad, when the difference of differential gear adjustment pad internal-and external diameter is less, some oilholes are all in the circumferentially equal distribution of same circle, wherein a part of oilhole equal distribution on a circle when the difference of differential gear adjustment pad internal-and external diameter is larger, other oilholes are equal distribution on another concentric circle.
The lubricant oil that first oil nozzle 13 sprays enters into differential mechanism inside by the casting oilhole 16 of front shell of differential body 1 intermediate portion.
The optical axis portion of differential gear 4 fallen by the lubricant oil of the lubricant oil that left side second oil nozzle 14 sprays and splashing, lubricant oil flows to the first straight oil groove 18 position along the first helical oil groove 17 of front shell of differential body 1, first helical oil groove 17 of front shell of differential body 1 is dextrorotation, and this rotation direction ensures that lubricant oil flows to enclosure interior; The optical axis portion of differential gear 4 fallen by the lubricant oil of the lubricant oil that right side the 3rd oil nozzle 15 sprays and splashing, lubricant oil flows to the second straight oil groove 20 position along the second helical oil groove 19 of differential mechanism rear case 2, second helical oil groove 19 of differential mechanism rear case 2 is left-handed, and this rotation direction ensures that lubricant oil flows to enclosure interior.
Claims (4)
1. a differential lubrication system, comprise front shell of differential body (1), differential mechanism rear case (2), planetary pinion (3) is provided with in the cavity that described front shell of differential body (1) and differential mechanism rear case (2) surround, differential gear (4), gear shaft positioning block (8), spool gear axle (9) and short gear axle (10), described planetary pinion (3) and be equipped with spherical pad (7) between front shell of differential body (1) and differential mechanism rear case (2), described differential gear (4) and be equipped with differential gear between front shell of differential body (1) and differential mechanism rear case (2) and adjust pad (6), planetary pinion (3) and differential gear (4) engagement,
It is characterized in that: described differential gear (4) is provided with differential gear oil stifled (5), described front shell of differential body (1) is provided with some casting holes (16), described casting hole (16) is the even annular arranged in arrays in the center of circle with the center of front case (1), front shell of differential body (1) and differential gear adjust the inwall that pad (6) contacts and are provided with the first straight oil groove (18), differential mechanism rear case (2) and differential gear adjust the inwall that pad (6) contacts and are provided with the second straight oil groove (20), the inwall that differential mechanism rear case (2) contacts with spherical pad (7) is provided with oil groove (21), described differential gear adjustment pad (6) and spherical pad (7) are equipped with some oilholes, the first oil nozzle (13) is provided with outside described casting hole (16), lubricant oil enters differential mechanism inside by casting hole (16).
2. a kind of differential lubrication system according to claim 1, it is characterized in that: the inwall that described front shell of differential body (1) contacts with differential gear (4) is provided with the first helical oil groove (17), the inwall that differential mechanism rear case (2) contacts with differential gear (4) is provided with the second helical oil groove (19).
3. a kind of differential lubrication system according to claim 2, it is characterized in that: the oily flat horizontal surface that described spool gear axle (9) is parallel with the cylndrical surface of short gear axle (10) being arranged with two, the transition portion of described oily flat horizontal surface and cylndrical surface is fillet.
4. a kind of differential lubrication system according to claim 3, is characterized in that: described differential gear adjustment pad (6) is the even annular arranged in arrays of upper oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624253.1U CN204153118U (en) | 2014-10-27 | 2014-10-27 | A kind of differential lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420624253.1U CN204153118U (en) | 2014-10-27 | 2014-10-27 | A kind of differential lubrication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153118U true CN204153118U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420624253.1U Expired - Fee Related CN204153118U (en) | 2014-10-27 | 2014-10-27 | A kind of differential lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153118U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555869A (en) * | 2015-09-29 | 2017-04-05 | 陕西汉德车桥有限公司 | With the driving axis for improving lubricating system |
| CN108302181A (en) * | 2018-03-27 | 2018-07-20 | 江阴市科安传动机械有限公司 | The military differential mechanism of high impact resistance and test method |
| CN109139876A (en) * | 2018-08-20 | 2019-01-04 | 杭州杰途传动部件有限公司 | A kind of mixed electrical automobile differential mechanism |
| CN110195773A (en) * | 2019-06-28 | 2019-09-03 | 安徽合力股份有限公司 | A kind of differential assembly |
| CN110195777A (en) * | 2019-06-28 | 2019-09-03 | 安徽合力股份有限公司 | A kind of differential lubrication system |
| CN117419154A (en) * | 2023-12-18 | 2024-01-19 | 中国第一汽车股份有限公司 | Differential and vehicle |
-
2014
- 2014-10-27 CN CN201420624253.1U patent/CN204153118U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555869A (en) * | 2015-09-29 | 2017-04-05 | 陕西汉德车桥有限公司 | With the driving axis for improving lubricating system |
| CN106555869B (en) * | 2015-09-29 | 2019-08-13 | 陕西汉德车桥有限公司 | With the driving axis for improving lubricating system |
| CN108302181A (en) * | 2018-03-27 | 2018-07-20 | 江阴市科安传动机械有限公司 | The military differential mechanism of high impact resistance and test method |
| CN109139876A (en) * | 2018-08-20 | 2019-01-04 | 杭州杰途传动部件有限公司 | A kind of mixed electrical automobile differential mechanism |
| CN109139876B (en) * | 2018-08-20 | 2024-02-09 | 杭州杰途传动部件有限公司 | Differential mechanism of hybrid electric vehicle |
| CN110195773A (en) * | 2019-06-28 | 2019-09-03 | 安徽合力股份有限公司 | A kind of differential assembly |
| CN110195777A (en) * | 2019-06-28 | 2019-09-03 | 安徽合力股份有限公司 | A kind of differential lubrication system |
| CN117419154A (en) * | 2023-12-18 | 2024-01-19 | 中国第一汽车股份有限公司 | Differential and vehicle |
| CN117419154B (en) * | 2023-12-18 | 2024-05-14 | 中国第一汽车股份有限公司 | Differential and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20191027 |