CN109084011B - Transmission lubrication system - Google Patents
Transmission lubrication system Download PDFInfo
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- CN109084011B CN109084011B CN201811115671.7A CN201811115671A CN109084011B CN 109084011 B CN109084011 B CN 109084011B CN 201811115671 A CN201811115671 A CN 201811115671A CN 109084011 B CN109084011 B CN 109084011B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 52
- 238000005461 lubrication Methods 0.000 title claims abstract description 52
- 238000004891 communication Methods 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 193
- 239000010687 lubricating oil Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of speed variators, in particular to a speed variators lubrication system; the problems of low efficiency, large noise and high cost of the existing intermediate shaft gearbox in working are solved. The technical scheme of the invention is as follows: a transmission lubrication system comprising a front lubrication structure and a rear lubrication structure; the front lubrication structure comprises a first front oil inlet hole, a front oil return hole, an oil inlet groove, a front flow guide rib and a front oil passing groove which are arranged on the front end cover and communicated with the first front oil inlet hole; the front oil passing groove is of an intermittent structure, an inlet of the front oil passing groove is communicated with a first front oil inlet, an outlet of the front oil passing groove is communicated with a front oil return hole, and the middle of the front oil passing groove is communicated with a first groove and an input shaft oil seal mounting hole; the rear lubrication structure comprises a first rear oil inlet hole and a rear oil return hole which are arranged on a rear shell of the transmission, an oil inlet groove, a rear flow guide rib and a rear oil passing groove which is arranged on a rear end cover and communicated with the first rear oil inlet hole; the structure of the rear oil passing groove is the same as that of the front oil passing groove.
Description
Technical Field
The invention relates to the technical field of transmissions, in particular to a transmission lubrication system.
Background
When the new energy electrically driven gearbox works, the new energy electrically driven gearbox is required to have high rotating speed, high efficiency and low noise. The design difficulty of the transmission is lubrication of bearings and gears. At present, an electric drive transmission is usually lubricated in a forced lubrication mode, namely, an oil pump and a pipeline are additionally arranged to lubricate a high-speed gear, a bearing and an oil seal, but the efficiency of the whole box can be influenced by the additional arrangement of the oil pump, so that larger noise is brought, and the cost is increased.
Disclosure of Invention
In order to effectively solve the technical problems of low efficiency, large noise and high cost of the existing new energy electrically-driven intermediate shaft transmission during working. The invention provides a transmission lubrication system.
The technical scheme of the invention is as follows:
a transmission lubrication system, characterized in that:
comprises a front lubrication structure and a rear lubrication structure;
the front lubrication structure comprises a first front oil inlet hole, a front oil return hole, an oil inlet groove, a front flow guide rib and a front oil passing groove, wherein the first front oil inlet hole, the front oil return hole, the oil inlet groove, the front flow guide rib and the front oil passing groove are formed in the front end cover and communicated with the first front oil inlet hole.
The first front oil inlet hole and the front oil return hole are respectively arranged at the outer sides of the first bearing mounting hole of the intermediate shaft and the bearing mounting hole of the input shaft; the first front oil inlet hole and the front oil return hole are axially communicated with the front shell of the transmission; the first front oil inlet is provided with an oil inlet groove. The front guide rib is arranged on the inner wall of the shell above the first bearing mounting hole of the intermediate shaft.
The front oil passing groove is of an intermittent structure, an inlet of the front oil passing groove is communicated with a first front oil inlet, an outlet of the front oil passing groove is communicated with a front oil return hole, and the middle of the front oil passing groove is communicated with a first groove and an input shaft oil seal mounting hole.
The rear lubrication structure comprises a first rear oil inlet and a rear oil return hole which are arranged on a rear shell of the transmission, an oil inlet groove, a rear flow guide rib and a rear oil passing groove which is arranged on a rear end cover and communicated with the first rear oil inlet.
The first rear oil inlet hole and the oil return hole are respectively arranged at the outer sides of the middle shaft second bearing mounting hole and the output shaft bearing mounting hole; the first rear oil inlet hole and the rear oil return hole are axially communicated with the rear shell of the transmission; the first rear oil inlet hole inlet is provided with an oil inlet groove. The rear guide rib is arranged on the inner wall of the shell above the output shaft bearing mounting hole. The oil collecting structure is arranged above the output shaft bearing mounting hole.
The rear oil passing groove is of an intermittent structure, an inlet of the rear oil passing groove is communicated with a first rear oil inlet, an outlet of the rear oil passing groove is communicated with a rear oil return hole, and the middle of the rear oil passing groove is communicated with a second groove and an output shaft oil seal mounting hole.
Further, for better lubrication effect, the number of the first front oil inlet hole and the number of the rear oil inlet holes are at least two.
Further, for better lubrication, the lubrication system further comprises a second front oil inlet hole arranged above the input shaft bearing mounting hole, and the outlet of the second front oil inlet hole is communicated with a front oil passing groove arranged on the front end cover.
Further, for better lubrication effect, the lubrication system further comprises a second rear oil inlet hole arranged above the output shaft bearing mounting hole, and a second rear oil inlet hole outlet is communicated with a rear oil passing groove arranged on the rear end cover.
Further, in order to still store lubricating oil in each bearing mounting hole in the front lubricating structure in the lubricating oil circulation process, the front oil passing groove comprises a first front inlet section, a front communication section, a front outlet section and a second front inlet section, and the outlets of the front communication section and the front outlet section are respectively higher than the lowest points of the first groove and the input shaft oil seal mounting hole; the second front inlet section is communicated with the second front oil inlet hole and the input shaft oil seal mounting hole.
Further, in order to still store lubricating oil in each bearing mounting hole in the rear lubricating structure in the lubricating oil circulation process, the rear oil passing groove comprises a first rear inlet section, a rear communication section, a rear outlet section and a second rear inlet section, and the outlets of the rear communication section and the rear outlet section are respectively higher than the lowest points of the first groove and the output shaft oil seal mounting hole; the second rear inlet section is communicated with the second rear oil inlet hole and the output shaft oil seal mounting hole.
Further, in order to enable lubricating oil to enter the oil duct to the greatest extent and reduce cost, the oil inlet groove is a section of semi-open oil groove formed in a casting boss, the casting boss is arranged on the front shell of the transmission, and the semi-open oil groove is communicated with the first front oil inlet hole or the first rear oil inlet hole.
Further, in order to enable more lubricating oil splashed on the inner wall of the front shell of the transmission to enter the oil duct through the guide, the front guide rib is of an intermittent structure, and the extension line of the front guide rib coincides with the oil inlet groove.
Further, in order to enable more lubricating oil splashed to the inner wall of the rear shell of the transmission to enter the oil duct or the oil collecting structure through guiding, the rear guide rib is an arc line in smooth transition, and two ends of the rear guide rib point to the oil inlet groove and the oil collecting structure.
Further, in order to better collect lubricating oil splashed by the gears into an oil collecting structure, the oil collecting structure is of a hook-shaped structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the lubricating oil in the gearbox can continuously reach each bearing and each oil seal without adding an oil pump, then flows back into the gearbox, can lubricate the bearings and the oil seals, takes away related heat, ensures normal operation of the bearings and the oil seals, improves the working efficiency, reduces noise and reduces cost.
2. The front end cover and the rear end cover of the invention are provided with the oil passing channels, and the lubricating oil higher than the oil passing level can reach the next position or return to the gearbox, and a certain amount of lubricating oil can be always stored at each bearing position.
3. The oil inlet groove is a section of half-opening oil groove formed in a casting boss, the casting boss is arranged on a front shell of the speed changer, and the half-opening oil groove is communicated with a first front oil inlet hole or a first rear oil inlet hole. The structure can enable lubricating oil to enter the oil duct to the greatest extent, and the processing is simple, the cost is low, and the effect is good.
4. The invention is provided with a hook-shaped oil collecting structure above the meshing position of the gears to be lubricated, and the lubricating oil splashed by the gears is collected into the oil collecting structure and guided to the meshing area of the gear pair to lubricate the gears.
5. The guide rib is of an intermittent structure, so that lubricating oil splashed on the inner wall of the shell can be guided into the oil duct or the oil collecting structure, and the lubricating effect is better.
Drawings
FIG. 1 is an exploded view of one embodiment of the present invention;
FIG. 2 is a schematic view of the front lubrication structure of this embodiment;
FIG. 3 is a schematic structural view of a front housing of the transmission of this embodiment;
FIG. 4 is a schematic view of the structure of the front end cover of the transmission in this embodiment;
FIG. 5 is a schematic view of the rear lubrication structure of this embodiment;
FIG. 6 is a schematic structural view of a rear transmission case in this embodiment;
FIG. 7 is a schematic structural view of a rear end cover of the transmission in this embodiment;
FIG. 8 is a schematic view of the structure of the oil feed groove in this embodiment;
FIG. 9 is a schematic view of the structure of the oil collecting structure in this embodiment;
fig. 10 is a structural diagram of each shaft system in this embodiment.
The reference numerals in the drawings are: 1-front end cover, 101-first front inlet section, 102-front communication section, 103-front outlet section, 104-first groove, 105-input shaft oil seal mounting hole, 106-second front inlet section, 2-transmission front housing, 201-first front oil inlet hole, 202-front oil return hole, 203-intermediate shaft first bearing mounting hole, 204-input shaft bearing mounting hole, 205-oil inlet groove, 206-front deflector rib, 207-second front oil inlet hole, 3-transmission rear housing, 301-first rear oil inlet hole, 302-rear oil return hole, 303-intermediate shaft second mounting hole, 304-output shaft bearing mounting hole, 305-oil collecting structure, 306-rear deflector rib, 307-second rear oil inlet hole, 4-rear end cover, 401-first rear inlet section, 402-rear communication section, 403-rear outlet section, 404-second groove, 405-output shaft oil seal mounting hole, 406-second rear inlet section, 5-first gear, 6-second gear, 7-third gear, 8-intermediate shaft second intermediate shaft, 9-lower intermediate shaft, and 10-fourth gear.
Detailed Description
The invention is further described below with reference to the accompanying drawings and specific examples. The present embodiment is described taking a transmission lubrication system of three countershafts as an example, and the present invention is also applicable to a transmission of one countershaft and a transmission of two countershafts.
Referring to fig. 1, 2, 3 and 4, an intermediate shaft transmission lubrication system includes a front lubrication structure and a rear lubrication structure.
The front lubrication structure comprises a first front oil inlet hole 201, a front oil return hole 202, an oil inlet groove 205, a front guide rib 206 and a front oil passing groove, wherein the first front oil inlet hole 201 is arranged on the front shell 2 of the transmission, the oil inlet groove 205 is arranged at the inlet of the first front oil inlet hole 201, and the front oil passing groove is arranged on the front end cover 1 and communicated with the first front oil inlet hole 201.
Referring to fig. 3, two first front oil inlet holes 201, one second front oil inlet hole 207 and one front oil return hole 202 are provided on the front transformer housing 2. Both the first front oil inlet hole 201 and the front oil return hole 202 penetrate the transmission front case 2 in the axial direction. The two first advance oil inlet holes 201 are provided outside the two intermediate shaft first bearing mounting holes 203, and are both higher than the lowest points of the two intermediate shaft first bearing mounting holes 203. The second front oil hole 207 is provided at the top of the input shaft bearing mounting hole 204. Inlets of the two first and second advance oil inlet holes 201 and 207 are each provided with an oil inlet groove 205. The front oil return hole 202 is provided outside the input shaft bearing mounting hole 204, and the front oil return hole 202 is higher than the lowest point of the input shaft bearing mounting hole 204.
The front shell 2 of the speed changer is also provided with an arch-shaped front flow guide rib 206, the front flow guide rib 206 is of an intermittent structure, and extension lines at two ends of the front flow guide rib are respectively overlapped with any two of the three oil inlet grooves 205, so that lubricating oil on the inner wall of the front shell 2 of the speed changer can be guided into the oil inlet grooves 205.
Referring to fig. 4, a front oil passing groove is formed in the front end cover 1, the front oil passing groove is of an intermittent structure, an inlet of the front oil passing groove is communicated with a first front oil inlet hole 201, an outlet of the front oil passing groove is communicated with a front oil return hole 202, and a first groove 104 and an input shaft oil seal mounting hole 105 are communicated in the middle. The front oil passing groove comprises a front first front inlet section 101, two front communication sections 102, a front outlet section 103 and a second front inlet section 106, wherein the outlets of the two front communication sections 102 and the front outlet section 103 are respectively higher than the lowest points of the first groove 104 and the input shaft oil seal mounting hole 105; the second forward inlet section 106 communicates with a second forward inlet bore 207.
Referring to fig. 5, 6 and 7, the rear lubrication structure includes a first rear oil inlet 301, a second rear oil inlet 307, a rear oil return 302, an oil inlet groove 205, a rear guide rib 306, and a rear oil passing groove provided on the rear end cover 4 to communicate with both the first rear oil inlet 301 and the second rear oil inlet 307, which are provided on the rear case 3 of the transmission.
Referring to fig. 6, two first rear oil inlet holes 301, one second rear oil inlet hole 307 and one rear oil return hole 302 are provided on the transmission rear case 3; both the first rear oil inlet hole 301 and the rear oil return hole 302 penetrate the transmission rear case 3 in the axial direction. The two first rear oil inlet holes 301 are respectively arranged at the outer sides of the two intermediate bearing mounting holes 303 and are higher than the lowest points of the two intermediate bearing mounting holes 303; a second rear oil inlet hole 307 is provided at the top of the output shaft bearing mounting hole 304. The inlets of the two first rear oil inlet holes 301 and the second rear oil inlet hole 307 are each provided with an oil inlet groove 205. The rear oil return hole 302 is provided outside the output shaft bearing mounting hole 304, and the rear oil return hole 302 is higher than the lowest point of the output shaft bearing mounting hole 304.
The rear shell 3 of the transmission is also provided with a rear guide rib 306, the rear guide rib 306 is of a smooth circular arc structure, and two ends of the rear guide rib are respectively directed to the oil inlet groove 205 and the oil receiving structure 305; the rear guide rib 306 can guide the lubricating oil on the inner wall of the rear casing 3 of the transmission into the oil inlet groove 205 or the oil collecting structure 305. Two oil receiving structures 305 are respectively provided on the obliquely upper casing of the output shaft bearing mounting hole 304.
Referring to fig. 7, a rear oil passing groove is provided on the rear end cover 4; the rear oil passing groove is of an intermittent structure and comprises two first rear inlet sections 401, two rear communication sections 402, a rear outlet section 403 and a second rear inlet section 406, wherein the inlets of the rear oil passing groove are respectively communicated with the two first rear oil inlet holes 301 and the second rear oil inlet holes 307, the outlets of the rear oil passing groove are communicated with the rear oil return holes 302, the middle of the rear oil passing groove is communicated with the two second grooves 404 and the output shaft oil seal mounting holes 405, and the outlets of the rear oil passing groove are communicated with the rear oil return holes 302. The inlets of the two rear communication sections 402 and the rear outlet section 403 are higher than the lowest points of the second groove 404 and the output shaft oil seal mounting hole 405, respectively.
Referring to fig. 8, the oil feed groove 205 is a half-open oil groove that opens on a cast boss provided on the transmission front case 2 or the transmission rear case 3.
Referring to fig. 9 and 10, since the first gear 5, the second gear 6 and the third gear 7 cannot lubricate the meshing area by self-splash oil, an oil collecting structure 305 is provided on the top housing of the meshing portion of the first gear 5 and the second gear 6, and the meshing portion of the second gear 6 and the third gear 7, that is, on the upper housing of the two intermediate shaft second bearing mounting holes 303, respectively, and the oil collecting structure 305 is a hook-like structure, and splashed lubricating oil is collected and guided to the middle of the meshing portion between the gears by the oil collecting structure 305.
Referring to fig. 10, the front lubrication system operates as follows:
when a certain amount of lubricating oil is filled in the gearbox, the front and rear row gears on the lower intermediate shaft 9 are immersed under the oil surface, and the lubrication of the gears and the bearings is not problematic. When the transmission starts to normally run, the input shaft drives the fourth gear 10 thereon to start rotating, a large amount of lubricating oil splashes onto the inner wall of the transmission front housing 2, the lubricating oil on the inner wall is continuously collected into three oil inlet grooves 205 through front guide ribs 206 arranged on the inner wall of the transmission front housing 2, the lubricating oil in the three oil inlet grooves 205 respectively flows into two first front oil inlet holes 201 and one second front oil inlet hole 207, and respectively flows through front oil grooves on the front housing 1 to reach the first groove 104, the input shaft oil seal mounting hole 105, two intermediate shaft first bearing mounting holes 203 and the input shaft bearing mounting holes 204 for storage, and bearings and oil seals arranged in the bearing mounting holes and the oil seal mounting holes are lubricated. When the height of the lubricating oil stored in the two first grooves 104 is higher than the inlet height of the two front communication sections 102, the lubricating oil in the two first grooves 104 will flow into the input shaft oil seal mounting hole 105 along the two front communication sections 102. When the lubricating oil in the input shaft oil seal mounting hole 105 is higher than the inlet of the front outlet section 103, the lubricating oil in the input shaft oil seal mounting hole 105 enters the inside of the gearbox shell through the front oil return hole 202 on the front shell 2 of the gearbox, and the bearing and the oil seal can be continuously lubricated by circulation, related heat is taken away, and normal operation of the bearing and the oil seal is ensured.
The lubrication process of the rear lubrication system for the bearings and oil seals is the same as that of the front lubrication system and will not be described in detail here.
The lubrication process of the transmission lubrication system for each gear is as follows:
for the front row gear meshing, since the fourth gear 10 of the input shaft partially submerged below the oil surface is sufficiently large, the meshing portion of the pair of gear pairs can be lubricated by self-splash. For the meshing position of the rear gear, the splashed lubricating oil is collected through the oil collecting structure 305 and is respectively guided to the meshing area of the first gear 5 and the second gear 6 and the meshing area of the second gear 6 and the third gear 7 for lubrication, so that the high-speed smooth operation of the rear gear is ensured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A transmission lubrication system, characterized by:
comprises a front lubrication structure and a rear lubrication structure;
the front lubrication structure comprises a first front oil inlet hole (201), a front oil return hole (202), an oil inlet groove (205), a front guide rib (206) and a front oil passing groove which is arranged on the front end cover (1) and communicated with the first front oil inlet hole (201);
the first front oil inlet hole (201) and the front oil return hole (202) are respectively arranged at the outer sides of the first bearing mounting hole (203) of the intermediate shaft and the bearing mounting hole (204) of the input shaft; the first front oil inlet hole (201) and the front oil return hole (202) are axially communicated with the front shell (2) of the transmission; an inlet of the first front oil inlet hole (201) is provided with an oil inlet groove (205); the front guide rib (206) is arranged on the inner wall of the shell above the first bearing mounting hole (203) of the intermediate shaft;
the front oil passing groove is of an intermittent structure, an inlet of the front oil passing groove is communicated with a first front oil inlet (201), an outlet of the front oil passing groove is communicated with a front oil return hole (202), and the middle of the front oil passing groove is communicated with a first groove (104) and an input shaft oil seal mounting hole (105);
the rear lubrication structure comprises a first rear oil inlet hole (301) and a rear oil return hole (302) which are arranged on a rear shell (3) of the transmission, an oil inlet groove (205), a rear flow guide rib (306) and a rear oil passing groove which is arranged on a rear end cover (4) and communicated with the first rear oil inlet hole (301);
the first rear oil inlet hole (301) and the oil return hole (302) are respectively arranged at the outer sides of the middle shaft second bearing mounting hole (303) and the output shaft bearing mounting hole (304); the first rear oil inlet hole (301) and the rear oil return hole (302) are axially communicated with the rear shell (3) of the transmission; an inlet of the first rear oil inlet hole (301) is provided with an oil inlet groove (205); the rear guide rib (306) is arranged on the inner wall of the shell above the output shaft bearing mounting hole (304); the oil collecting structure (305) is arranged at the upper part of the output shaft bearing mounting hole (304);
the rear oil passing groove is of an intermittent structure, an inlet of the rear oil passing groove is communicated with a first rear oil inlet (301), an outlet of the rear oil passing groove is communicated with a rear oil return hole (302), and the middle of the rear oil passing groove is communicated with a second groove (404) and an output shaft oil seal mounting hole (405).
2. A transmission lubrication system according to claim 1, wherein: the number of the first front oil inlet holes (201) and the number of the first rear oil inlet holes (301) are at least two.
3. A transmission lubrication system according to any one of claims 1-2, wherein: the novel front oil inlet device is characterized by further comprising a second front oil inlet hole (207) arranged above the input shaft bearing mounting hole (204), wherein an inlet of the second front oil inlet hole (207) is provided with an oil inlet groove (205), and an outlet of the second front oil inlet hole is communicated with a front oil passing groove arranged on the front end cover (1).
4. A transmission lubrication system according to claim 3, wherein: the novel oil inlet device is characterized by further comprising a second rear oil inlet hole (307) arranged above the output shaft bearing mounting hole (304), wherein an inlet of the second rear oil inlet hole (307) is provided with an oil inlet groove (205), and an outlet of the second rear oil inlet hole is provided with a rear oil passing groove communicated with the rear end cover (4).
5. A transmission lubrication system according to claim 4, wherein: the front oil passing groove comprises a front first front inlet section (101), a front communication section (102), a front outlet section (103) and a second front inlet section (106), and inlets of the front communication section (102) and the front outlet section (103) are respectively higher than the lowest points of the first groove (104) and the input shaft oil seal mounting hole (105); the second front inlet section (106) is communicated with the second front oil inlet hole (207) and the input shaft oil seal mounting hole (105).
6. A transmission lubrication system according to claim 5, wherein: the rear oil passing groove comprises a first rear inlet section (401), a rear communication section (402), a rear outlet section (403) and a second rear inlet section (406), and inlets of the rear communication section (402) and the rear outlet section (403) are respectively higher than the lowest points of the second groove (404) and the output shaft oil seal mounting hole (405); the second rear inlet section (406) is communicated with the second rear oil inlet hole (307) and the output shaft oil seal mounting hole (405).
7. A transmission lubrication system according to claim 6, wherein: the oil inlet groove (205) is a section of half-opening oil groove formed in a casting boss, the casting boss is arranged on the front casing (2) or the rear casing (3) of the transmission, and the half-opening oil groove is communicated with the first front oil inlet hole (201) or the first rear oil inlet hole (301).
8. A transmission lubrication system according to claim 7, wherein: the front guide rib (206) is of an intermittent structure, and an extension line of the front guide rib (206) coincides with the oil inlet groove (205).
9. A transmission lubrication system according to claim 8, wherein: the rear flow guide rib (306) is an arc line in smooth transition, and two ends of the rear flow guide rib (306) respectively point to the oil inlet groove (205) and the oil receiving structure (305).
10. A transmission lubrication system according to claim 9, wherein: the oil receiving structure (305) is a hook-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115671.7A CN109084011B (en) | 2018-09-25 | 2018-09-25 | Transmission lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115671.7A CN109084011B (en) | 2018-09-25 | 2018-09-25 | Transmission lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109084011A CN109084011A (en) | 2018-12-25 |
| CN109084011B true CN109084011B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811115671.7A Active CN109084011B (en) | 2018-09-25 | 2018-09-25 | Transmission lubrication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107679A (en) * | 2019-06-13 | 2019-08-09 | 株洲齿轮有限责任公司 | Speed changer and its case of transmission |
| CN110273978A (en) * | 2019-07-18 | 2019-09-24 | 航仟源科技(杭州)有限公司 | A kind of power drive mechanism for new-energy automobile |
| CN111750080B (en) * | 2020-06-30 | 2022-07-05 | 重庆长安汽车股份有限公司 | Oil path structure of hybrid transmission box clutch |
| CN113062970B (en) * | 2021-03-16 | 2022-10-11 | 陕西法士特齿轮有限责任公司 | Forced lubricating system for high-torque pure electric transmission |
| CN113483082A (en) * | 2021-06-07 | 2021-10-08 | 重庆长安汽车股份有限公司 | Left end cover structure of hybrid transmission |
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