CN211501591U - Gearbox for automobile - Google Patents
Gearbox for automobile Download PDFInfo
- Publication number
- CN211501591U CN211501591U CN201922278317.2U CN201922278317U CN211501591U CN 211501591 U CN211501591 U CN 211501591U CN 201922278317 U CN201922278317 U CN 201922278317U CN 211501591 U CN211501591 U CN 211501591U
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- oil
- gearwheel
- storage chamber
- oil storage
- chamber
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- 239000003921 oil Substances 0.000 claims abstract description 210
- 238000003860 storage Methods 0.000 claims abstract description 103
- 239000010687 lubricating oil Substances 0.000 claims abstract description 39
- 238000009826 distribution Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000009825 accumulation Methods 0.000 claims description 17
- 244000309464 bull Species 0.000 claims 2
- 238000007654 immersion Methods 0.000 description 10
- 230000004308 accommodation Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a gearbox for an automobile, which comprises a rotating component and an oil distributing groove, wherein the rotating component comprises an intermediate shaft, and a pinion, a first gearwheel and a second gearwheel which are arranged on the intermediate shaft; a first oil storage chamber and a second oil storage chamber which are communicated with each other are arranged in the oil distribution groove along the axial direction of the intermediate shaft, the bottoms of the first gearwheel and the second gearwheel are respectively accommodated in the first oil storage chamber and the second oil storage chamber, the bottoms of the first gearwheel and the second gearwheel are respectively immersed in lubricating oil in the first oil storage chamber and the second oil storage chamber, and a first channel for the lubricating oil to enter the first oil storage chamber is formed between the first oil storage chamber and the rotating assembly; meanwhile, the heights of the two sides of the oil distribution groove are higher than the original oil level, so that lubricating oil outside the oil distribution groove is prevented from entering the first oil storage chamber and the second oil storage chamber from the two sides of the oil distribution groove, and the lubricating oil in the first oil storage chamber and the second oil storage chamber is discharged from the two sides of the oil distribution groove when the first gear wheel and the second gear wheel rotate.
Description
Technical Field
The utility model relates to a vehicle manufacturing field, concretely relates to gearbox for car.
Background
The gearbox comprises an intermediate shaft and a gear shifting mechanism, gear shifting gears corresponding to different gears are sleeved on the intermediate shaft, the gear shifting gears are arranged at intervals along the axial direction of the intermediate shaft, one end of the intermediate shaft is sequentially provided with a pinion and two large gears, the gear shifting gears of different gears are different in size, and the gear shifting gears are meshed with the different gear shifting gears by operating the gear shifting mechanism, so that gear shifting is realized. In order to ensure the normal work of the gearbox, devices inside the gearbox need to be lubricated, and lubricating oil has five functions of lubrication, cooling, cleaning, sealing and rust prevention, so that the working efficiency is improved, and the service life is prolonged.
The existing gearbox is generally lubricated by soaking a gear in lubricating oil, but the gear shifting mechanism and the position of the gear shifting mechanism meshed with the gear to be shifted cannot be well lubricated, clamping stagnation can be generated in the gear shifting process, the meshing position is abnormal, relative displacement among all parts of the gear shifting mechanism is not smooth enough, the gear shifting performance is reduced, and parts are easily damaged.
Chinese patent document CN107489756A discloses a transmission and a vehicle having the same, which includes an input shaft and a plurality of shift gears, wherein at least one of the shift gears is provided with an oil outlet, an outer opening of the oil outlet faces the outer side of the shift gear, and lubricating oil is filled in the oil outlet. During operation, the input shaft is rotatory to drive the gear of shifting rotatory, and the lubricating oil of filling the oil outlet throws away from the outside opening of oil outlet, and the direction of motion is towards the outside of gear of shifting, splashes and forms the oil mist, spouts gearshift, lubricates the position of gearshift and meshing gear of shifting, prevents to shift the in-process and produces the jamming, avoids the abnormal sound of meshing position, makes the relative displacement between each part of gearshift can smoothly go on, improves the performance of shifting, increase of service life.
This patent is through setting up the oil outlet and realizing carrying out lubricated effect to gearshift and meshing gear shifting's position through the lubrication of splashing, but because the lubrication of splashing drives lubricating oil through rotatory gear and splashes, consequently requires derailleur lubricating oil liquid level to be higher than the minimum of gear pair, and the gear shifting's of different gears variation in size in order to compromise the gear shifting that the size is little, can lead to the gear shifting that the size is big to dip into the oil level too deeply. Accordingly, when the gear teeth agitate the lubricant, a portion of the mechanical energy is converted into kinetic and internal energy of the oil, resulting in a power loss, referred to as churning loss. When the depth of the gear shifting gear with large size immersed into the oil surface is large, the amount of lubricating oil brought up by the gear during rotation is large, and the corresponding oil stirring loss is increased, so that the transmission efficiency of the transmission is reduced.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a gearbox for car, two epaxial gear wheels of jackshaft are acceptd respectively in the first oil storage cavity and the second oil storage cavity of dividing the oil groove to reduce the degree of depth that two gear wheels invade the oil level, reduced the oil stirring loss of gear wheel, improve the transmission efficiency of derailleur.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a transmission for an automobile, comprising:
the rotating assembly comprises an intermediate shaft, and a pinion, a first gearwheel and a second gearwheel which are arranged on the intermediate shaft, wherein the pinion, the first gearwheel and the second gearwheel are sequentially arranged at intervals along the axial direction of the intermediate shaft;
the oil distribution groove is internally provided with a first oil storage chamber and a second oil storage chamber which are communicated along the axial direction of the intermediate shaft, the bottoms of the first gearwheel and the second gearwheel are respectively accommodated in the first oil storage chamber and the second oil storage chamber, and a first channel for lubricating oil to enter the first oil storage chamber is formed between the first oil storage chamber and the rotating assembly; at the same time, the user can select the desired position,
the height of the two sides of the oil distribution groove is higher than the original oil level, so that when the first gear wheel and the second gear wheel rotate, the lubricating oil in the first oil storage cavity and the second oil storage cavity is discharged from the two sides of the oil distribution groove, and the lubricating oil outside the oil distribution groove cannot enter the first oil storage cavity and the second oil storage cavity from the two sides of the oil distribution groove.
On the basis of the technical scheme, a third oil storage chamber is further arranged in the oil distribution groove, the bottom of the pinion is accommodated in the third oil storage chamber, a second channel for lubricating oil to enter the third oil storage chamber is formed between the third oil storage chamber and the rotating assembly, and the second channel is communicated with the first channel.
On the basis of the above technical scheme, the accommodation space of the third oil storage chamber is smaller than the accommodation spaces of the first oil storage chamber and the second oil storage chamber.
On the basis of the technical scheme, the height of the first channel is higher than the tooth root height of the first gearwheel.
On the basis of the technical scheme, the height of one end, close to the first oil storage chamber, of the second oil storage chamber is higher than the tooth root height of the second gearwheel.
On the basis of the technical scheme, the height of one end, far away from the first oil storage chamber, of the second oil storage chamber is higher than the tooth root height of the second gearwheel.
On the basis of the technical scheme, the diameter of the first gearwheel is smaller than that of the second gearwheel.
On the basis of the technical scheme, the accommodating space of the first oil storage chamber is smaller than the accommodating space of the second oil storage chamber.
On the basis of the technical scheme, one end of the oil distribution groove, which is close to the second gearwheel, is also provided with a connecting structure, and the connecting structure is used for connecting the oil distribution groove with a box body of the gearbox.
On the basis of the technical scheme, the connecting structure comprises at least one connecting rod, and a threaded hole penetrating through the connecting rod is formed in the connecting rod; the gearbox body of the gearbox is provided with a mounting hole matched with the threaded hole, the oil distribution groove is connected with the gearbox body of the gearbox through a bolt, and the bolt penetrates through the threaded hole and the mounting hole.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a lubricating oil of gearbox for car gets into first oil storage cavity and second oil storage cavity from first passageway in, with lubricated first gear wheel and second gear wheel, first gear wheel and second gear wheel are at the rotation in-process with the indoor lubricating oil of first oil storage cavity and second oil storage cavity from dividing the oil groove both sides discharge, and because the speed that first gear wheel and second gear wheel got rid of oil outside dividing the oil groove is greater than the indoor speed that lubricating oil got into first oil storage cavity and second oil storage cavity, thereby the immersion oil degree of depth of first gear wheel and second gear wheel has been reduced, the stirring loss of gear wheel has been reduced, the transmission efficiency of derailleur has been improved.
Drawings
Fig. 1 is a schematic structural view of an automotive transmission according to an embodiment of the present invention;
fig. 2 is the structural schematic diagram of the oil distributing groove in the embodiment of the present invention.
In the figure: 1-middle shaft, 10-small gear, 11-first big gear, 12-second big gear, 13-box, 2-oil separating groove, 20-first oil storage chamber, 21-second oil storage chamber, 22-first channel, 23-third oil storage chamber, and 24-second channel.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1:
referring to fig. 1, an embodiment of the present invention provides a transmission for an automobile, where the transmission for an automobile includes a rotating assembly and an oil dividing groove 2, the rotating assembly includes an intermediate shaft 1, and a pinion 10, a first gearwheel 11 and a second gearwheel 12 that are disposed on the intermediate shaft 1, and the pinion 10, the first gearwheel 11 and the second gearwheel 12 are sequentially disposed at intervals along an axial direction of the intermediate shaft 1; the original oil level in the gearbox is higher than the tooth root height of the pinion 10. A first oil storage chamber 20 and a second oil storage chamber 21 which are communicated with each other are arranged in the oil distribution groove 2 along the axial direction of the intermediate shaft 1, the bottoms of the first large gear 11 and the second large gear 12 are respectively accommodated in the first oil storage chamber 20 and the second oil storage chamber 21, the bottoms of the first large gear 11 and the second large gear 12 are respectively immersed in lubricating oil in the first oil storage chamber 20 and the second oil storage chamber 21, the first oil storage chamber 20 and the second oil storage chamber 21 respectively form two independent oil storage containers, and the oil level heights in the first oil storage chamber 20 and the second oil storage chamber 21 determine the oil immersion depths of the first large gear 11 and the second large gear 12, so that the first large gear 11 and the second large gear 12 are separated from the original oil level of the gearbox. And a first passage 22 for the lubricating oil to enter the first oil storage chamber 20 is formed between the first oil storage chamber 20 and the rotating assembly; meanwhile, the heights of the two sides of the oil distribution groove 2 are higher than the original oil level, so that the lubricating oil outside the oil distribution groove 2 is prevented from entering the first oil storage chamber 20 and the second oil storage chamber 21 from the two sides of the oil distribution groove 2, and when the first large gear 11 and the second large gear 12 rotate, the lubricating oil in the first oil storage chamber 20 and the second oil storage chamber 21 is discharged from the two sides of the oil distribution groove 2.
The utility model discloses a divide oil groove 2's theory of operation does:
lubricating oil entering the first oil storage chamber 20 and the second oil storage chamber 21 from the first channel 22 lubricates the first large gear 11 and the second large gear 12, the first large gear 11 and the second large gear 12 discharge the lubricating oil in the first oil storage chamber 20 and the second oil storage chamber 21 from two sides of the oil distribution groove 2 in the rotating process, and the speed of throwing the oil out of the oil distribution groove 2 by the first large gear 11 and the second large gear 12 is greater than the speed of entering the first oil storage chamber 20 and the second oil storage chamber 21 by the lubricating oil, so that the oil immersion depth of the first large gear 11 and the second large gear 12 is reduced, the oil stirring loss of the large gears is reduced, and the transmission efficiency of the transmission is improved.
Example 2:
the embodiment 2 of the present invention has the same basic content as the embodiment 1, and the difference is that:
because still be equipped with pinion 10 on the jackshaft 1, consequently the utility model discloses still be equipped with third oil storage cavity 23 in 2 of minute oil groove of embodiment 2 for provide pinion 10's the oil immersion space, the bottom of pinion 10 is held in third oil storage cavity 23, and forms the second passageway 24 that supplies lubricating oil to get into third oil storage cavity 23 between third oil storage cavity 23 and the rotating assembly, and second passageway 24 is linked together with first passageway 22. Lubricating oil enters the lubricating pinion 10 in the third oil storage chamber 23 from the second channel 24, and when the oil level exceeds the height of the first channel 22, the lubricating oil enters the first oil storage chamber 20 and the second oil storage chamber 21 from the second channel 24, so that the oil inlet speed in the first oil storage chamber 20 and the second oil storage chamber 21 is reduced, the speed of throwing the oil out of the oil distribution groove 2 by the first gearwheel 11 and the second gearwheel 12 is ensured to be higher than the speed of entering the first oil storage chamber 20 and the second oil storage chamber 21 by the lubricating oil, the oil immersion depth of the first gearwheel 11 and the second gearwheel 12 is reduced, the oil stirring loss of the gearwheels is reduced, and the transmission efficiency of the transmission is improved.
Further, the accommodation space of the third oil accumulation chamber 23 is smaller than the accommodation spaces of the first and second oil accumulation chambers 20 and 21. Since the third oil accumulation chamber 23 is used to accommodate the pinion gear 10, the first oil accumulation chamber 20 and the second oil accumulation chamber 21 are used to accommodate the large gear, and the pinion gear 10 is large relative to the gear at the left end of the intermediate shaft 1 in fig. 1, the oil immersion depth of the pinion gear 10 cannot be too deep, and therefore, the oil immersion depth of the pinion gear 10 can be prevented from being too deep by designing the accommodation space of the third oil accumulation chamber 23 to be smaller than the first oil accumulation chamber 20 and the second oil accumulation chamber 21.
Example 3:
the embodiment 3 of the present invention has the same basic contents as those of the embodiment 1, except that:
the height of the first channel 22 is higher than the height of the tooth root of the first gearwheel 11, so that when the first gearwheel 11 rotates, the tooth root of the first gearwheel 11 throws lubricating oil into the third oil storage chamber 23, and the oil level of the lubricating oil in the third oil storage chamber 23 is prevented from being influenced.
Example 4:
the embodiment 4 of the present invention has the same basic content as the embodiment 1, except that:
the height of the second oil storage chamber 21 at the end close to the first oil storage chamber 20 is higher than the tooth root height of the second gearwheel 12. When the second gearwheel 12 is prevented from rotating, the tooth root of the second gearwheel 12 throws lubricating oil into the first oil storage chamber 20, so that the oil quantity in the first oil storage chamber 20 is increased, and the oil immersion depth of the first gearwheel 11 is influenced. The height of the end of the second oil storage chamber 21 far from the first oil storage chamber 20 is higher than the tooth root height of the second gearwheel 12. The end of the second oil storage chamber 21 far away from the first oil storage chamber 20 is sealed, so that lubricating oil is prevented from entering the second oil storage chamber 21 from the end, and the oil immersion depth of the second gearwheel 12 is prevented from being influenced.
Further, the diameter of the first gearwheel 11 is smaller than the diameter of the second gearwheel 12. From the left end to the right end of the intermediate shaft 1, the sizes of the gears are sequentially increased to realize the switching of different gears.
Further, the accommodation space of the first oil accumulation chamber 20 is smaller than that of the second oil accumulation chamber 21. In order to ensure that the tooth root of the second gearwheel 12 is completely immersed in the lubricating oil and to prevent too much immersion, the second oil storage chamber 21 is slightly larger than the accommodating space of the first oil storage chamber 20, which ensures that the tooth root of the first gearwheel 11 and the tooth root of the second gearwheel 12 are immersed in the lubricating oil.
Example 5:
the embodiment 5 of the present invention has the same basic content as the embodiment 1, and the difference is that:
one end of the oil distribution groove 2 close to the second gearwheel 12 is also provided with a connecting structure, and the connecting structure is used for connecting the oil distribution groove 2 with a box body 13 of the gearbox.
Furthermore, the connecting structure comprises at least one connecting rod, and a threaded hole penetrating through the connecting rod is formed in the connecting rod; the box body 13 of the gearbox is provided with a mounting hole matched with the threaded hole, the oil distribution groove 2 is connected with the box body 13 of the gearbox through a bolt, and the bolt penetrates through the threaded hole and the mounting hole.
The utility model discloses connection structure is simple, and need not to set up bearing structure, just can realize dividing the firm of box 13 of oil groove 2 and gearbox and be connected, and does not hinder the oil feed and get rid of oil.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (10)
1. A transmission for an automobile, characterized by comprising:
the rotating assembly comprises an intermediate shaft (1), and a pinion (10), a first gearwheel (11) and a second gearwheel (12) which are arranged on the intermediate shaft (1), wherein the pinion (10), the first gearwheel (11) and the second gearwheel (12) are sequentially arranged at intervals along the axial direction of the intermediate shaft (1);
the oil distribution groove (2) is internally provided with a first oil storage chamber (20) and a second oil storage chamber (21) which are communicated along the axial direction of the intermediate shaft (1), the bottoms of the first gearwheel (11) and the second gearwheel (12) are respectively accommodated in the first oil storage chamber (20) and the second oil storage chamber (21), and a first channel (22) for lubricating oil to enter the first oil storage chamber (20) is formed between the first oil storage chamber (20) and the rotating component; at the same time, the user can select the desired position,
divide oil groove (2) both sides highly be higher than original oil level, so that first gear wheel (11) with during second gear wheel (12) rotate, first oil storage cavity (20) with lubricating oil in second oil storage cavity (21) is followed divide oil groove (2) both sides to discharge, just divide the outer lubricating oil of oil groove (2) can not be followed divide oil groove (2) both sides to get into first oil storage cavity (20) with second oil storage cavity (21).
2. The transmission for automobile according to claim 1, wherein a third oil accumulation chamber (23) is further provided in the oil distribution groove (2), a bottom portion of the pinion (10) is accommodated in the third oil accumulation chamber (23), and a second passage (24) for lubricating oil to enter the third oil accumulation chamber (23) is formed between the third oil accumulation chamber (23) and the rotating component, the second passage (24) communicating with the first passage (22).
3. The transmission for an automobile according to claim 2, wherein a housing space of the third oil accumulation chamber (23) is smaller than housing spaces of the first oil accumulation chamber (20) and the second oil accumulation chamber (21).
4. Gearbox for motor vehicles according to claim 1, characterised in that the height of said first channel (22) is higher than the root height of said first gearwheel (11).
5. The transmission for motor vehicles according to claim 1, wherein the second oil reservoir chamber (21) has an end near the first oil reservoir chamber (20) at a height higher than the tooth root of the second bull gear (12).
6. The transmission for motor vehicles according to claim 1, wherein the second oil reservoir chamber (21) has an end remote from the first oil reservoir chamber (20) at a height higher than the dedendum height of the second bull gear (12).
7. Gearbox for motor vehicles according to claim 1, characterised in that the diameter of the first gearwheel (11) is smaller than the diameter of the second gearwheel (12).
8. The transmission for an automobile according to claim 7, wherein a housing space of the first oil reservoir chamber (20) is smaller than a housing space of the second oil reservoir chamber (21).
9. The gearbox for motor vehicles as claimed in claim 1, characterized in that the oil distribution sump (2) is provided with a connection structure at its end close to the second gearwheel (12), said connection structure being used to connect the oil distribution sump (2) to the gearbox housing (13) of the gearbox.
10. The transmission for automobile according to claim 9, wherein said connecting structure comprises at least one connecting rod, said connecting rod having a threaded hole formed therethrough; a mounting hole matched with the threaded hole is formed in the box body (13) of the gearbox, the oil distribution groove (2) is connected with the box body (13) of the gearbox through a bolt, and the bolt penetrates through the threaded hole and the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278317.2U CN211501591U (en) | 2019-12-18 | 2019-12-18 | Gearbox for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278317.2U CN211501591U (en) | 2019-12-18 | 2019-12-18 | Gearbox for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501591U true CN211501591U (en) | 2020-09-15 |
Family
ID=72416792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922278317.2U Active CN211501591U (en) | 2019-12-18 | 2019-12-18 | Gearbox for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251133A (en) * | 2021-05-31 | 2021-08-13 | 东风商用车有限公司 | Oil baffle plate for realizing unequal-height oil level and gearbox |
-
2019
- 2019-12-18 CN CN201922278317.2U patent/CN211501591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251133A (en) * | 2021-05-31 | 2021-08-13 | 东风商用车有限公司 | Oil baffle plate for realizing unequal-height oil level and gearbox |
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