CN219413480U - Forced lubrication mechanism for gearbox of commercial vehicle - Google Patents
Forced lubrication mechanism for gearbox of commercial vehicle Download PDFInfo
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- CN219413480U CN219413480U CN202220976699.5U CN202220976699U CN219413480U CN 219413480 U CN219413480 U CN 219413480U CN 202220976699 U CN202220976699 U CN 202220976699U CN 219413480 U CN219413480 U CN 219413480U
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- oil
- shaft
- gearbox
- sun gear
- commercial vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses a forced lubrication mechanism of a commercial vehicle gearbox, which comprises the following components: the gearbox shaft is internally provided with a first oil duct along the axial direction; the second oil ducts are arranged on the gearbox shaft, the inlet ends of the second oil ducts are communicated with the first oil ducts, and the outlet ends of the second oil ducts are arranged on the outer surface of the gearbox shaft; the second oil duct is arranged at intervals along the axial direction of the first oil duct; a first oil injection pipe; the first oil spray holes are formed in the first oil spray pipe and are arranged at intervals along the axial direction of the first oil spray pipe; the first oil spray hole is arranged towards the gearbox shaft; the second oil injection pipe; the second oil spray holes are formed in the second oil spray pipe and are arranged at intervals along the axial direction of the second oil spray pipe; the second oil injection hole is arranged towards the gearbox shaft; and the oil pump pumps lubricating oil into the first oil duct, the first oil injection pipe and the second oil injection pipe.
Description
Technical Field
The utility model belongs to the technical field of gearbox lubrication, and particularly relates to a forced lubrication mechanism for a commercial vehicle gearbox.
Background
Lubrication is an important way of ensuring that the gearbox can be used for a long period of time. If lubrication is not ideal, all parts in the gearbox such as bearings and gear surfaces are extremely easy to damage, so that the transmission efficiency of the gearbox is reduced, the service life is shortened, and the maintenance cost is increased.
The transmission power of the commercial vehicle gearbox is large, the using working condition is complex, and splash lubrication can not meet the using requirement of the current heavy commercial vehicle gearbox. During the running of the vehicle on a steep slope or a long-time slope, splash lubrication is difficult to realize the lubrication of all parts; the lubrication effect of the front end and the rear end of the gearbox is greatly reduced, so that the gearbox is extremely easy to fail. In particular, the lubrication state of the input shaft bearing is mainly determined by the height of the liquid level of the lubricating oil in the gearbox, and the lubrication effect can be greatly changed when the rotating speeds are different. In some active lubrication, only an oil injection pipe is used for lubricating the contact surfaces of two gears, and bearings in some gears are not correspondingly lubricated; moreover, the input shaft is lack of fine lubrication, friction in the bearing is large, thermal damage is easy to occur, service performance is reduced, and service life is prolonged.
In addition, the traditional splash lubrication oil quantity is not easy to control, the lubrication position is not accurate, and the lubrication effect is not ideal. The impurity that produces in the gearbox is got rid of to filter equipment lack, very easily brings bearing or gear contact surface with the impurity that produces in the gearbox, produces great harm to its part, greatly reduced gearbox's life.
Disclosure of Invention
The utility model aims to provide a forced lubrication mechanism for a gearbox of a commercial vehicle, which can accurately lubricate parts needing lubrication in the gearbox and improve lubrication effect and lubrication efficiency.
The technical scheme provided by the utility model is as follows:
a forced lubrication mechanism for a commercial vehicle gearbox, comprising:
the gearbox shaft is internally provided with a first oil duct along the axial direction;
the second oil ducts are arranged on the gearbox shaft, the inlet ends of the second oil ducts are communicated with the first oil ducts, and the outlet ends of the second oil ducts are arranged on the outer surface of the gearbox shaft;
wherein the plurality of second oil passages are arranged at intervals along the axial direction of the first oil passage;
a first oil injection pipe;
the first oil spray holes are formed in the first oil spray pipe and are arranged at intervals along the axial direction of the first oil spray pipe; the first oil spray hole is arranged towards the gearbox shaft;
the second oil injection pipe;
the second oil spray holes are formed in the second oil spray pipe and are arranged at intervals along the axial direction of the second oil spray pipe; the second oil injection hole is arranged towards the gearbox shaft;
and the oil pump pumps lubricating oil into the first oil duct, the first oil injection pipe and the second oil injection pipe.
Preferably, the forced lubrication mechanism for the gearbox of the commercial vehicle further comprises:
the lubricating oil tank is filled with lubricating oil and is connected with an oil inlet of the oil pump through a pipeline;
a first filter is disposed in the lubrication tank.
Preferably, the lubricating oil tank is a gearbox oil pan.
Preferably, the oil outlet of the oil pump is communicated with one end of the first oil injection pipe, and the other end of the first oil injection pipe is simultaneously communicated with one end of the second oil injection pipe and one end of the first oil duct.
Preferably, the forced lubrication mechanism for the gearbox of the commercial vehicle further comprises:
a second filter provided between the oil pump and the first oil injection pipe;
wherein, the filtration precision of the second filter is greater than the filtration precision of the first filter.
Preferably, the gearbox shaft comprises an input shaft, a main shaft and a sun gear shaft which are sequentially and coaxially connected;
wherein the main shaft is rotatably connected to the input shaft; the sun gear shaft is connected with the main shaft through a coupler.
Preferably, the first oil duct comprises an input shaft first oil duct, a main shaft first oil duct and a sun gear shaft first oil duct which are sequentially communicated;
the first oil passage of the input shaft is coaxially arranged in the input shaft, the first oil passage of the main shaft is coaxially arranged in the main shaft, and the first oil passage of the sun gear shaft is coaxially arranged in the sun gear shaft.
Preferably, a first oil bushing is arranged at the joint of the first oil passage of the input shaft and the first oil passage of the main shaft;
and a second oil passing bushing is arranged at the joint of the first oil passage of the main shaft and the first oil passage of the sun gear shaft.
Preferably, the plurality of second oil passages includes a plurality of input shaft second oil passages, a plurality of main shaft second oil passages, and a plurality of sun gear shaft second oil passages;
the second oil passage of the input shaft is arranged in the input shaft and is communicated with the first oil passage of the input shaft;
the main shaft second oil duct is arranged in the main shaft and is communicated with the main shaft first oil duct;
the sun gear shaft second oil duct is arranged in the sun gear shaft and is communicated with the sun gear shaft first oil duct.
Preferably, the oil pump is a gear pump, which is connected to an intermediate shaft of the gearbox and driven by the intermediate shaft.
The beneficial effects of the utility model are as follows:
(1) According to the forced lubrication mechanism for the commercial vehicle gearbox, the plurality of oil injection holes are formed in the first oil injection pipe and the second oil injection pipe, and the parts needing lubrication in the gearbox can be accurately lubricated through the positions and the sizes of the oil injection holes which are reasonably arranged, so that the lubrication efficiency is greatly improved, and the service life of the gearbox is prolonged.
(2) The double-filtering device is used in the utility model, so that not only is the impurities in the gearbox removed, the tooth surfaces of the bearing and the gear are protected, but also the oil absorption efficiency of the oil pump is ensured.
(3) According to the utility model, the hollow gearbox shaft is used, the inside of the hollow gearbox shaft is used as an oil duct, and holes are formed in different positions of the gearbox shaft, so that lubrication of the bearings is realized, the working performance of the bearings is improved, the power loss is reduced, lubrication of the planet carrier is realized from the inside, the lubrication efficiency is ensured, and the use amount of lubricating oil is reduced.
(4) According to the self-adaptive lubrication device, the lubricating oil pump is driven by the intermediate shaft power, and when the rotating speed of the intermediate shaft changes, the oil pumping pressure of the lubricating oil pump also automatically changes, so that self-adaptive lubrication is realized.
Drawings
Fig. 1 is a schematic general structural view of a forced lubrication mechanism for a gearbox of a commercial vehicle according to the present utility model.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
As shown in fig. 1, the present utility model provides a forced lubrication mechanism for a gearbox of a commercial vehicle, which mainly includes: the oil injection device comprises a second oil injection pipe 1, a first oil injection pipe 2, a second filter 3, an oil pump 4, a first filter 5, a lubricating oil tank 6, an input shaft 7, a bearing 8, a first oil passing bush 9, a main shaft 10, a coupling 11, a second oil passing bush 12, a sun gear shaft 13, a planet gear 14, a gear ring 15 and an oil plug 16.
A first oil duct is axially formed in the gearbox shaft; the plurality of second oil ducts are arranged on the gearbox shaft, the inlet ends of the second oil ducts are communicated with the first oil ducts, and the outlet ends of the second oil ducts are arranged on the outer surface of the gearbox shaft. The plurality of second oil channels are arranged at intervals along the axial direction of the first oil channel.
In this embodiment, the gearbox shaft comprises an input shaft 7, a main shaft 10 and a sun gear shaft 13 which are coaxially connected in sequence. Wherein, the main shaft 10 and the input shaft 7 are coaxially connected through a bearing 8, and the main shaft 10 and the input shaft 7 can rotate relatively; the sun gear shaft 13 is coaxially connected to the main shaft 10 via the coupling 11. Correspondingly, the first oil passage includes an input shaft first oil passage 701, a main shaft first oil passage 1001, and a sun gear shaft first oil passage 1301 which are sequentially communicated. The first input shaft oil passage 701 is coaxially disposed in the input shaft 7, the first main shaft oil passage 1001 is coaxially disposed in the main shaft 10, and the first sun gear shaft oil passage 1301 is coaxially disposed in the sun gear shaft 13. A first oil passing bush 9 is arranged at the joint of the input shaft first oil passage 701 and the main shaft first oil passage 1001; the junction of the main shaft first oil passage 1001 and the sun gear shaft first oil passage 1301 is provided with a second oil passing bush 12. The provision of the first oil passing bush 9 and the second oil passing bush 12 can prevent the outflow of lubricating oil from the junction of the adjacent shafts.
The plurality of second oil passages includes a plurality of input shaft second oil passages 702, a plurality of main shaft second oil passages 1002, and a plurality of sun gear shaft second oil passages 1302. Wherein, the input shaft second oil duct 702 is opened in the input shaft 7 and is communicated with the input shaft first oil duct 701; the input shaft second oil passage 702 sprays lubricating oil to gears, sliding sleeves, and the like on the input shaft 7, which need lubrication. The main shaft second oil passage 1002 is opened in the main shaft 10, and is communicated with the main shaft first oil passage 1001; the main shaft second oil passage 1002 sprays lubrication liquid to gears, sliding sleeves, and the like on the main shaft 10, which need lubrication. A sun gear shaft second oil passage 1302 is opened in the sun gear shaft 13, and communicates with the sun gear shaft first oil passage 1301. The sun gear, the planet gears 14 and the gear ring 15 form a planetary gear train, and the second oil passage 1302 of the sun gear shaft sprays lubricating oil to gears, sliding sleeves and the like which need to be lubricated on the planetary gear train.
The first oil spray pipe 2 is arranged on one side of the gearbox shaft; the first oil spray holes 201 are formed in the first oil spray pipe 2 and are arranged at intervals along the axial direction of the first oil spray pipe 2; the first oil jet 201 is arranged towards the gearbox shaft. The second oil injection pipe 1 is arranged on the other side of the gearbox shaft; the plurality of second oil spray holes 101 are formed in the second oil spray pipe 1 and are arranged at intervals along the axial direction of the second oil spray pipe 1; the second oil jet 101 is disposed toward the transmission shaft. The lubrication oil is injected to the gear surface to be lubricated through the first oil injection hole 201 and the second oil injection hole 101. Through the first oil spray hole 201 and the second oil spray hole 101 position and the aperture size that rationally set up, can realize carrying out accurate lubrication to each part that needs lubricated in the gearbox, improve lubrication efficiency greatly, improve gearbox life.
The lubricating oil tank 6 is a lubricating liquid cavity of the oil pan of the gearbox, and lubricating oil is contained in the lubricating liquid cavity; the lubricating oil tank 6 is connected with an oil inlet of the oil pump 4 through a pipeline; the oil pump 4 pumps lubricating oil into the first oil passage, the first oil injection pipe 2 and the second oil injection pipe 1. The first filter 5 is mounted on the front housing of the gearbox and is immersed below the lubricating liquid level of the oil sump of the lubricating oil tank 6. Impurities in the lubricating oil can be filtered by the first filter 5.
In the embodiment, the oil outlet of the oil pump 4 is communicated with one end of the first oil injection pipe 2, and the other end of the first oil injection pipe 2 is simultaneously communicated with one end of the second oil injection pipe 1 and one end of the first oil duct; the other end of the second injection pipe 1 is plugged by an oil plug 16. The second filter 3 is arranged between the oil pump 4 and the first oil injection pipe 2; and the filtering accuracy of the second filter 3 is greater than that of the first filter 5. Wherein the second filter 3 is mounted on the front housing of the gearbox; the second filter 3 has the function of filtering out fine impurities in the lubricating oil and supplying clean lubricating liquid to the lubricating oil path.
As a further preference, the oil pump 4 employs a gear pump which is mounted on one end of an intermediate shaft on the gearbox front casing, driven by said intermediate shaft. The oil pump 4 is driven by the intermediate shaft taking force, and when the rotation speed of the intermediate shaft changes, the oil pumping pressure of the lubricating oil pump also automatically changes, so that self-adaptive lubrication is realized.
The working principle of the forced lubrication mechanism of the commercial vehicle gearbox provided by the utility model is as follows: when the gearbox works, the oil pump 4 rotates under the drive of the intermediate shaft, the lubricating liquid in the lubricating oil tank 6 is sucked into the first filter 5, after the impurities with larger granularity are filtered by the lubricating oil through the first filter 5, the lubricating oil is pumped into the second filter 3 through the oil pump 4 to filter finer impurities, the lubricating oil enters an oil duct in a front shell of the gearbox, firstly, the lubricating oil flows through the first oil injection pipe 2, the lubricating oil is sprayed out of a plurality of first oil injection holes 201 on the first oil injection pipe 2 to lubricate the surfaces of all gears of the main box, the output end of the first oil injection pipe 2 is connected with two paths, one path of lubricating oil is connected with the second oil injection pipe 1, the lubricating oil is sprayed out of a plurality of oil injection holes 101 on the second oil injection pipe 1, the surface lubrication of each gear of the main tank and the rear auxiliary tank is carried out, the rear end of the second oil injection pipe 1 is blocked by an oil plug 16, the other path of the second oil injection pipe is connected with an input shaft first oil passage 701 of the input shaft 7, high-pressure lubricating oil sequentially enters the input shaft first oil passage 701, a main shaft first oil passage 1001 and a sun gear shaft first oil passage 1301, the oil passages between two adjacent shafts are connected by a first oil passing bush 9 and a second oil passing bush 12, the lubricating oil is prevented from flowing out, and the lubricating oil enters the parts such as a gap between a shaft and an idle gear, a gap between the shaft and a sliding sleeve, a bearing and the like through the input shaft second oil passage 702, the main shaft second oil passage 1002 and the sun gear shaft second oil passage 1302, and the lubricating of the parts is realized.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A forced lubrication mechanism for a commercial vehicle gearbox, comprising:
the gearbox shaft is internally provided with a first oil duct along the axial direction;
the second oil ducts are arranged on the gearbox shaft, the inlet ends of the second oil ducts are communicated with the first oil ducts, and the outlet ends of the second oil ducts are arranged on the outer surface of the gearbox shaft;
wherein the plurality of second oil passages are arranged at intervals along the axial direction of the first oil passage;
a first oil injection pipe;
the first oil spray holes are formed in the first oil spray pipe and are arranged at intervals along the axial direction of the first oil spray pipe; the first oil spray hole is arranged towards the gearbox shaft;
the second oil injection pipe;
the second oil spray holes are formed in the second oil spray pipe and are arranged at intervals along the axial direction of the second oil spray pipe; the second oil injection hole is arranged towards the gearbox shaft;
and the oil pump pumps lubricating oil into the first oil duct, the first oil injection pipe and the second oil injection pipe.
2. The commercial vehicle transmission forced lubrication mechanism according to claim 1, further comprising:
the lubricating oil tank is filled with lubricating oil and is connected with an oil inlet of the oil pump through a pipeline;
a first filter is disposed in the lubrication tank.
3. The commercial vehicle transmission forced lubrication mechanism according to claim 2, wherein the lubrication tank is a transmission oil pan.
4. The forced lubrication mechanism of a commercial vehicle gearbox according to claim 3, wherein the oil outlet of the oil pump is communicated with one end of the first oil injection pipe, and the other end of the first oil injection pipe is simultaneously communicated with one end of the second oil injection pipe and one end of the first oil passage.
5. The commercial vehicle transmission forced lubrication mechanism according to claim 4, further comprising:
a second filter provided between the oil pump and the first oil injection pipe;
wherein, the filtration precision of the second filter is greater than the filtration precision of the first filter.
6. The forced lubrication mechanism of a commercial vehicle gearbox according to claim 4 or 5, wherein the gearbox shaft comprises an input shaft, a main shaft and a sun gear shaft which are coaxially connected in sequence;
wherein the main shaft is rotatably connected to the input shaft; the sun gear shaft is connected with the main shaft through a coupler.
7. The forced lubrication mechanism of a commercial vehicle gearbox according to claim 6, wherein the first oil passage comprises an input shaft first oil passage, a main shaft first oil passage and a sun gear shaft first oil passage which are sequentially communicated;
the first oil passage of the input shaft is coaxially arranged in the input shaft, the first oil passage of the main shaft is coaxially arranged in the main shaft, and the first oil passage of the sun gear shaft is coaxially arranged in the sun gear shaft.
8. The forced lubrication mechanism of a commercial vehicle gearbox according to claim 7, wherein a first oil passing bushing is arranged at the connection of the first oil passage of the input shaft and the first oil passage of the main shaft;
and a second oil passing bushing is arranged at the joint of the first oil passage of the main shaft and the first oil passage of the sun gear shaft.
9. The commercial vehicle transmission forced lubrication mechanism according to claim 8, wherein the plurality of second oil passages includes a plurality of input shaft second oil passages, a plurality of main shaft second oil passages, and a plurality of sun gear shaft second oil passages;
the second oil passage of the input shaft is arranged in the input shaft and is communicated with the first oil passage of the input shaft;
the main shaft second oil duct is arranged in the main shaft and is communicated with the main shaft first oil duct;
the sun gear shaft second oil duct is arranged in the sun gear shaft and is communicated with the sun gear shaft first oil duct.
10. The commercial vehicle transmission forced lubrication mechanism according to claim 9, wherein the oil pump is a gear pump, which is connected to an intermediate shaft of the transmission, driven by the intermediate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220976699.5U CN219413480U (en) | 2022-04-26 | 2022-04-26 | Forced lubrication mechanism for gearbox of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220976699.5U CN219413480U (en) | 2022-04-26 | 2022-04-26 | Forced lubrication mechanism for gearbox of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219413480U true CN219413480U (en) | 2023-07-25 |
Family
ID=87230270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220976699.5U Active CN219413480U (en) | 2022-04-26 | 2022-04-26 | Forced lubrication mechanism for gearbox of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219413480U (en) |
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2022
- 2022-04-26 CN CN202220976699.5U patent/CN219413480U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chai Yefei Inventor after: Wang Yingrui Inventor after: Cheng Zishuo Inventor after: Zhang Shuo Inventor after: Liu Xiangyu Inventor after: Tian Zhe Inventor after: Geng Xiaohu Inventor after: Shi Wenli Inventor after: Zeng Guoling Inventor after: Gao Zhuang Inventor before: Chai Yefei Inventor before: Wang Yingrui Inventor before: Zhang Penglei Inventor before: Zhang Shuo Inventor before: Liu Xiangyu Inventor before: Tian Zhe Inventor before: Geng Xiaohu Inventor before: Shi Wenli Inventor before: Zeng Guoling Inventor before: Gao Zhuang |
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| CB03 | Change of inventor or designer information |