CN215059373U - Transmission main and auxiliary case lubrication structure and transmission - Google Patents
Transmission main and auxiliary case lubrication structure and transmission Download PDFInfo
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- CN215059373U CN215059373U CN202120718081.4U CN202120718081U CN215059373U CN 215059373 U CN215059373 U CN 215059373U CN 202120718081 U CN202120718081 U CN 202120718081U CN 215059373 U CN215059373 U CN 215059373U
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Abstract
本发明公开了一种变速器主副箱润滑结构及变速器，所述变速器主副箱润滑结构包括主箱壳体、副箱壳体、主箱齿轮副、副箱行星轮副，所述主箱齿轮副位于主箱壳体中，所述主箱壳体和副箱壳体固定相连，所述主箱壳体内部与主箱壳体内部通过主箱壳体的侧壁相隔，所述主箱壳体的侧壁上开设有油槽，所述油槽与所述副箱壳体内部相连通；所述主箱壳体靠近副箱壳体内部腔室的侧壁上开设有回油孔，所述回油孔高于所述副箱行星轮副所需的润滑油液面，所述回油孔为通孔。本实用新型通过简单的壳体油路设计，采用了油槽导油和回油孔回油的方式，保证了各部件的润滑。
The invention discloses a main and auxiliary case lubrication structure of a transmission and a transmission. The transmission main and auxiliary case lubrication structure comprises a main case housing, an auxiliary case housing, a main case gear pair, an auxiliary case planetary gear pair, and the main case gear The auxiliary is located in the main box shell, the main box shell and the auxiliary box shell are fixedly connected, the inside of the main box shell is separated from the inside of the main box shell by the side wall of the main box shell, the main box shell An oil groove is opened on the side wall of the body, and the oil groove is communicated with the inside of the auxiliary tank shell; an oil return hole is opened on the side wall of the main tank shell close to the internal cavity of the auxiliary tank shell, and the return hole is The oil hole is higher than the lubricating oil level required by the auxiliary box planetary gear set, and the oil return hole is a through hole. The utility model adopts the method of guiding the oil in the oil groove and returning the oil through the oil return hole through the simple design of the oil circuit of the shell, so as to ensure the lubrication of each component.
Description
Technical Field
The invention relates to a lubricating structure of a main box and an auxiliary box of a transmission.
Background
With the upgrade of the fifth and sixth engines of the commercial vehicle, the power with the same displacement is obviously improved, and the matching upgrade of the related torque is also carried out on the original transmission. After the power transmitted by the transmission is increased, the requirements on the reliability and the internal lubrication of the transmission are also improved, a forced lubricating oil pump is directly added to some high-torque transmissions to improve the lubrication of the transmission, the design also improves the requirements on the internal oil circuit structure and the lubricating oil cleanliness, and meanwhile, the manufacturing cost of products is increased. Therefore, the lubrication mode of the gear structure in the manual transmission needs to be optimized so as to promote effective lubrication of each part in the transmission, promote overall reliability and reduce manufacturing cost.
Splash lubrication of gear oil in manual transmissions has always been the designer's preference. In the aspect of the splash lubrication design of the gear box, a lubricating oil channel of the shell is optimized, a plurality of multi-gear boxes, particularly a transmission with a main box structure and an auxiliary box structure are lubricated mainly by a high-load planetary gear train auxiliary box, an auxiliary box synchronizer with a large relative speed difference and the like, the effective lubrication of all parts in the transmission is improved, the overall reliability is improved, and the manufacturing cost is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a transmission main and auxiliary box lubricating structure and a transmission, which can lubricate a planetary gear train of an auxiliary box by optimizing a gear oil splashing lubricating mode, ensure oil circulation of the main and auxiliary boxes and ensure lubrication of all parts in the transmission.
In order to achieve the purpose, the technical scheme adopted by the invention is that the transmission main and auxiliary box lubricating structure comprises a main box shell, an auxiliary box shell, a main box gear pair and an auxiliary box planetary gear pair, wherein the main box gear pair is positioned in the main box shell, the main box shell is fixedly connected with the auxiliary box shell, the interior of the main box shell is separated from the interior of the main box shell through the side wall of the main box shell, the side wall of the main box shell is provided with an oil groove, and the oil groove is communicated with the interior of the auxiliary box shell; and an oil return hole is formed in the side wall, close to the inner cavity of the auxiliary box shell, of the main box shell, the oil return hole is higher than the lubricating oil liquid level required by the auxiliary box planetary gear pair, and the oil return hole is a through hole. The interior of the main box shell is communicated with the interior of the main box shell through an oil return hole.
In an embodiment of the present invention, the main box casing includes a front casing and a rear casing, the interiors of the front casing and the rear casing are communicated, the rear casing is connected to the sub-box casing, oil grooves are formed on the side walls of the front casing and the rear casing, and an inlet of the oil groove is located on the side wall of the rear casing adjacent to the inner cavity of the sub-box casing.
In an embodiment of the present invention, the introducing port is higher than a level of the lubricant oil required by the auxiliary box planetary gear set.
In an embodiment of the present invention, the main box gear pair and the auxiliary box planetary gear pair are separated by a side wall of the rear housing, and an oil return hole is formed in the side wall of the rear housing, which is close to the side wall for separating the main box gear pair and the auxiliary box planetary gear pair.
In an embodiment of the present invention, the oil return holes are distributed on the rear housing.
In an embodiment of the present invention, the position of the oil groove is adapted to the direction of the gear oil splashing.
A transmission comprises the main and auxiliary box lubricating structure.
The technical scheme has the following beneficial effects:
the utility model relates to a derailleur major-minor case lubricating structure designs, including main tank casing, auxiliary tank casing, main tank gear pair, auxiliary tank planet wheel pair. When the gear pair of the main box of the transmission starts to operate, gear oil splashed by the main box is guided into the auxiliary box through the oil groove, and when the liquid level of the gear oil guided into the auxiliary box reaches the lubricating oil level required by the planetary gear pair of the auxiliary box, the oil is guided back to the main box through the oil return hole of the shell of the main box.
The utility model discloses an oil groove, oil gallery oil level design reach the circulation of main and auxiliary case lubricating oil and the vice lubrication of auxiliary tank planet wheel, and the design when compensateing original main and auxiliary case and directly feeding through is not enough. Because the design height of the original auxiliary box planetary gear train is high, gear oil is directly stirred by a main box gear pair, so that the oil level is too low, the planetary gear pair cannot be lubricated, and the problems of burning-out and early abrasion of the auxiliary box transmission are caused.
The utility model discloses a simple casing oil circuit design has adopted the oil groove to lead the circulation lubrication scheme of oil and oil gallery oil return to both guaranteed the lubrication of each part, reduced the manufacturing degree of difficulty again.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a partial structural schematic diagram of an embodiment of the present invention.
Description of reference numerals: 1. a front housing; 2. a rear housing; 3. a sub-tank case; 4. a main box gear pair; an auxiliary box planetary wheel pair 5; 6. an oil sump; 7. an inlet port; 8. and an oil return hole.
Detailed Description
The invention will now be further described with reference to the following examples and figures 1 and 2.
A transmission main and auxiliary box lubricating structure comprises a main box shell, an auxiliary box shell 3, a main box gear pair 4 and an auxiliary box planetary gear pair 5, wherein the main box gear pair 4 is positioned in the main box shell, the inside of the main box shell is separated from the inside of the main box shell through the side wall of the main box shell, an oil groove 6 is formed in the side wall of the main box shell, and the oil groove 6 is communicated with the inside of the auxiliary box shell 3; and an oil return hole 8 is formed in the side wall of the main box shell, which is close to the inner cavity of the auxiliary box shell 3, and the inside of the main box shell is communicated with the inside of the main box shell through the oil return hole 8. An oil groove 6 is designed on the shell of the main box, gear oil splashed by the main box is guided into the auxiliary box, an oil return hole 8 is designed on the specified liquid level height of the auxiliary box, the oil level of the auxiliary box is ensured to be higher than the oil level of the main box, and a planetary gear pair of the auxiliary box is fully lubricated; when the level of the gear oil introduced by the auxiliary box reaches the level of the lubricating oil required for lubricating the planetary gear pair of the auxiliary box, the oil is introduced back to the main box through the oil return hole 8 of the rear shell 2.
The main tank casing includes procapsid 1 and back casing 2 that fixed connection is in the same place, the inside of procapsid 1 and back casing 2 is linked together, back casing 2 and 3 fixed connection of auxiliary tank casing, oil groove 6 has been seted up on the lateral wall of procapsid 1 and back casing 2, the introducing port 7 of oil groove 6 is located back casing 2 faces and connects on the lateral wall of the internal cavity of auxiliary tank casing 3. The main box gear pair 4 and the auxiliary box planetary gear pair 5 are separated by the side wall of the rear shell 2, and the rear shell 2 is provided with an oil return hole 8 by the side wall for isolating the main box gear pair 4 and the auxiliary box planetary gear pair 5. The oil return hole 8 is higher than the level of the lubricating oil required by the auxiliary box planetary gear pair 5, and the oil return hole 8 is a through hole. The oil return holes 8 can be designed in multiple or multiple sizes according to the requirement of the liquid level and the oil return effect, and the outline is not limited.
When a main box gear pair 4 of the transmission starts to operate, gear oil splashes under the action of centrifugal force according to the rotation direction of a gear, at the moment, oil groove 6 channels are designed on the side walls of a front shell 1 and a rear shell 2, the positions of the oil grooves 6 are arranged according to the splashing direction of the gear oil so as to achieve the optimal oil receiving effect, the gear oil splashed by the main box is guided into an auxiliary box through the oil grooves 6, and when the liquid level of the gear oil guided into the auxiliary box reaches the lubricating oil level required by a lubricating auxiliary box planetary gear pair 5, the oil is guided back to the main box through an oil return hole 8 of the rear shell 2. The design reaches the circulation of main and auxiliary box lubricating oil and the lubrication of auxiliary box planetary gear pair 5 through the design of oil groove 6 and oil return hole 8 oil level, makes up the design deficiency when the original main and auxiliary boxes are directly communicated, because the design height of the original auxiliary box planetary gear train is high, gear oil is directly stirred by main box gear pair 4, causes the oil level to be too low, can not lubricate the auxiliary box planetary gear pair, causes the auxiliary box transmission to burn out, early wear and the like.
Presently, splash lubrication of gear oil in manual transmissions has been the designer's preference. The utility model discloses consider planetary gear countershaft height and input shaft height with the design, as shown in fig. 2, auxiliary box planetary gear pair transmission lower extreme position is higher than the main tank transmission, and 4 transmission mounted positions of main tank gear pair are low. Require the fluid circulation of the major-minor case again of the lubricating oil liquid level of vice case promptly, consequently, splash at the gear box when lubricated improvement design, the utility model discloses an improvement to the shell structure optimizes the lubricating oil duct of casing, to some multi-gear case, especially the derailleur of major-minor case structure, the key is lubricated to the auxiliary box of planetary gear train of high load, the poor big vice case synchronous ware of relative speed etc. promotes effective lubrication and promotion whole reliability of each part in the derailleur, reduces manufacturing cost.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any changes and alterations made without inventive step within the spirit and scope of the claims are intended to fall within the scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718081.4U CN215059373U (en) | 2021-04-09 | 2021-04-09 | Transmission main and auxiliary case lubrication structure and transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718081.4U CN215059373U (en) | 2021-04-09 | 2021-04-09 | Transmission main and auxiliary case lubrication structure and transmission |
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| Publication Number | Publication Date |
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| CN215059373U true CN215059373U (en) | 2021-12-07 |
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| CN202120718081.4U Active CN215059373U (en) | 2021-04-09 | 2021-04-09 | Transmission main and auxiliary case lubrication structure and transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489773A (en) * | 2023-11-06 | 2024-02-02 | 东风商用车有限公司 | Transmission lubrication system, method and automobile |
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2021
- 2021-04-09 CN CN202120718081.4U patent/CN215059373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489773A (en) * | 2023-11-06 | 2024-02-02 | 东风商用车有限公司 | Transmission lubrication system, method and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang WanLiYang Intelligent Manufacturing Co.,Ltd. Assignor: ZHEJIANG WANLIYANG Co.,Ltd. Contract record no.: X2025980013456 Denomination of utility model: Transmission main and auxiliary box lubrication structure and transmission Granted publication date: 20211207 License type: Common License Record date: 20250714 |
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| EE01 | Entry into force of recordation of patent licensing contract |