CN219570828U - Transmission lubricating structure and transmission - Google Patents
Transmission lubricating structure and transmission Download PDFInfo
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- CN219570828U CN219570828U CN202320654830.0U CN202320654830U CN219570828U CN 219570828 U CN219570828 U CN 219570828U CN 202320654830 U CN202320654830 U CN 202320654830U CN 219570828 U CN219570828 U CN 219570828U
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Abstract
The utility model discloses a transmission lubricating structure and a transmission, wherein the transmission lubricating structure comprises a shell structure, an oil injection pipe and an oil pumping device, an oil passing channel is formed in the shell structure, a channel outlet at the upper end and a channel inlet at the lower end are formed in the oil passing channel, the oil injection pipe is arranged in the shell structure and communicated with the channel outlet, a first oil injection hole is formed in the pipe wall of the oil injection pipe and is arranged towards the rotating direction of a corresponding gear shaft transmission structure, and the oil pumping device is communicated with the channel inlet and is used for pumping oil flowing back into an oil return cavity into the oil passing channel. The oil in the oil return cavity of the transmission can be pumped into the oil passing channel through the oil pumping device, so that the oil in the oil passing channel is sprayed onto the gear transmission structure along the rotation direction of the gear transmission structure through the first oil spraying hole on the oil spraying pipe, and the impact stirring of the gear transmission structure to the oil can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of transmission lubrication, in particular to a transmission lubrication structure and a transmission.
Background
A common transmission lubrication system adopts a transmission gear pair to run at a high speed to stir lubricating oil, splash the lubricating oil to parts to be lubricated or collect the lubricating oil by an oil receiving device and then convey the lubricating oil to the parts to be lubricated. In principle, splash lubrication can lose a portion of the mechanical energy, causing energy losses, thereby reducing the effective mechanical transmission efficiency of the transmission.
Disclosure of Invention
The utility model mainly aims to provide a transmission lubricating structure and a transmission, and aims to solve the problem that the mechanical transmission efficiency is reduced in the prior art that lubricating oil is stirred by rotation of a gear pair for lubrication.
In order to achieve the above object, the present utility model provides a transmission lubrication structure including:
the oil-passing channel is formed in the shell structure, and is provided with a channel outlet at the upper end and a channel inlet at the lower end;
the oil injection pipe is arranged on the shell structure and communicated with the channel outlet, a first oil injection hole is formed in the pipe wall of the oil injection pipe, and the first oil injection hole is arranged towards the forward rotation direction of the corresponding gear shaft transmission structure; the method comprises the steps of,
and the oil pumping device is communicated with the channel inlet and is used for pumping the oil which flows back into the oil return cavity into the oil passing channel.
Optionally, the first oil spraying hole is used for corresponding to a plurality of gear shaft transmission structures and is provided with a plurality of oil spraying pipes along the length direction of the oil spraying pipes.
Optionally, the oil spraying pipe is further formed with an extending branch pipe arranged towards the rotation direction of the corresponding gear shaft transmission structure, and the extending branch pipe is arranged obliquely downwards;
the first oil injection hole is formed in the extension branch pipe.
Optionally, a second oil injection hole opposite to the first oil injection hole is further formed on the oil injection pipe, and the second oil injection hole is arranged towards the reverse rotation direction of the corresponding gear shaft transmission structure;
the transmission lubrication structure further includes:
the switching valve is arranged in the oil injection pipe and is provided with a blocking structure which can be movably arranged, and the blocking structure can block the first oil injection hole or the second oil injection hole on the moving stroke of the switching valve; the method comprises the steps of,
the driving structure is used for driving the blocking structure to move according to the forward and reverse rotation condition of the gear shaft transmission structure.
Optionally, the oil pumping device comprises an electronic pump arranged on the shell structure, a pump oil port of the electronic pump is correspondingly communicated with the channel inlet, and an oil suction port of the electronic pump is correspondingly communicated with the oil return cavity.
Optionally, a sealing gasket is arranged between the oil injection pipe and the shell structure.
In order to achieve the above purpose, the transmission provided by the utility model comprises the transmission lubricating structure.
Optionally, the transmission includes:
a transmission housing having a middle housing and a rear housing disposed opposite to each other so as to form a mounting chamber therebetween and an oil return chamber at the bottom of the mounting chamber; the method comprises the steps of,
the gear shaft transmission structure is rotationally arranged in the mounting cavity;
the shell structure comprises a rear shell, and two ends of the oil injection pipe are respectively arranged on opposite side walls of the middle shell and the rear shell;
the oil pumping device is arranged on the rear shell and is respectively communicated with the oil return cavity and the channel inlet.
Optionally, the middle part of the oil spray pipe is connected to the upper side wall of the mounting cavity through a supporting structure.
Optionally, the transmission comprises a longitudinal dual clutch transmission.
According to the technical scheme provided by the utility model, the oil pumping device is adopted to pump the oil which flows back into the oil return cavity into the oil passing channel in the shell structure, and then the oil can be sprayed out corresponding to the gear shaft transmission structure through the first oil spraying hole of the oil spraying pipe arranged at the upper end so as to generate cooling and lubricating effects, the gear shaft transmission structure cannot lose mechanical energy due to the fact that the oil which is stirred to the bottom end is stirred, and meanwhile, the direction of the first oil spraying hole corresponds to the forward rotating direction of the gear shaft transmission structure, so that the impact effect of the oil discharged from the first oil spraying hole and the gear shaft transmission structure can be reduced to the greatest extent, the energy loss is reduced, and the transmission efficiency of the transmission can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of a transmission according to the present utility model;
FIG. 2 is a schematic diagram of another perspective of the transmission of FIG. 1.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Lubricating structure of speed changer | 1000 | Transmission device |
| 1 | Shell structure | 200 | Transmission case |
| 11 | Oil passage | 210 | Rear housing |
| 2 | Oil spray pipe | 220 | Intermediate shell |
| 21 | Extension branch pipe | 230 | Mounting cavity |
| 3 | Oil pumping device | 231 | Oil return cavity |
| 31 | Electronic pump | 300 | Gear shaft transmission structure |
| 4 | Sealing gasket | 400 | Supporting structure |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the case where a directional instruction is involved in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
A common transmission lubrication system adopts a transmission gear pair to run at a high speed to stir lubricating oil, splash the lubricating oil to parts to be lubricated or collect the lubricating oil by an oil receiving device and then convey the lubricating oil to the parts to be lubricated. In principle, splash lubrication can lose a portion of the mechanical energy, causing energy losses, thereby reducing the effective mechanical transmission efficiency of the transmission.
In view of the above, the present utility model provides a lubrication structure of a transmission and the transmission, which aims to solve the problem that the mechanical transmission efficiency is reduced in the prior art that the lubrication is performed by stirring the lubricating oil through the rotation of a gear pair, wherein fig. 1 to 2 are schematic structural diagrams of an embodiment of the lubrication structure of the transmission provided by the present utility model.
Referring to fig. 1-2, the transmission lubrication structure 100 includes a housing structure 1, an oil injection pipe 2, and an oil pumping device 3, an oil passing channel 11 is formed in the housing structure 1, the oil passing channel 11 is formed with a channel outlet at an upper end and a channel inlet at a lower end, the oil injection pipe 2 is disposed in the housing structure 1 and is communicated to the channel outlet, a first oil injection hole is formed on a pipe wall of the oil injection pipe 2, the first oil injection hole is configured to be disposed towards a forward rotation direction of a corresponding gear shaft transmission structure 300, and the oil pumping device 3 is communicated to the channel inlet and is configured to pump oil flowing back into the oil return cavity 231 into the oil passing channel 11.
According to the technical scheme provided by the utility model, the oil pumping device 3 is adopted to pump the oil which flows back into the oil return cavity 231 into the oil passing channel 11 in the shell structure 1, and then the oil can be sprayed out corresponding to the gear shaft transmission structure 300 through the first oil spraying hole of the oil spraying pipe 2 arranged at the upper end, so that cooling and lubricating effects are generated, the gear shaft transmission structure 300 cannot lose mechanical energy due to the oil stirred to the bottom end, and meanwhile, the direction of the first oil spraying hole corresponds to the forward rotation direction of the gear shaft transmission structure 300, so that the impact effect with the gear shaft transmission structure 300 can be reduced to the greatest extent due to the oil discharged from the first oil spraying hole, the energy loss is reduced, and the transmission efficiency of the transmission can be ensured.
Because the gear shaft transmission structure 300 in the gearbox needs to have multiple matching to realize gear shifting, the number of the gear shaft transmission structures 300 is relatively large, and correspondingly, in this embodiment, the first oil spraying holes are used for correspondingly arranging a plurality of gear shaft transmission structures 300 along the length direction of the oil spraying pipe 2. The plurality of oil spray pipes 2 can spray lubricating oil to the plurality of gear shaft transmission structures 300 correspondingly, so that the gear shaft transmission structures 300 can be guaranteed to be sufficiently cooled in a lubrication and replacement mode.
It can be understood that, only the first oil spraying hole is formed on the oil spraying pipe 2, which is difficult to control the direction of oil spraying, and is easy to cause oil spraying, so in this embodiment, the oil spraying pipe 2 is further formed with an extending branch pipe 21 configured to be oriented to the rotation direction of the corresponding gear shaft transmission structure 300, and the extending branch pipe 21 is configured to be inclined downward; the first oil jet hole is formed in the extension branch pipe 21. The oil can be precisely sprayed out in the extending direction through the extending branch pipe 21 on the oil spray pipe 2, so that the gear shaft transmission structure 300 can be ensured to be stably lubricated.
It will be appreciated that, when the vehicle is engaged in the reverse gear, a part of the gear transmission structure 300 will rotate reversely, so as to ensure that the gear transmission structure 300 can be lubricated during the reverse gear and no oil stirring problem will occur, in this embodiment, the oil injection pipe 2 is further formed with a second oil injection hole opposite to the first oil injection hole, the second oil injection hole is configured to be set towards the reverse rotation direction of the corresponding gear transmission structure 300, the transmission lubrication structure 100 further includes a switching valve and a driving structure, the switching valve is disposed in the oil injection pipe 2, the switching valve has a blocking structure capable of being movably disposed, and on the movable stroke thereof, the blocking structure can block the first oil injection hole or the second oil injection hole, and the driving structure is configured to drive the blocking structure to move according to the forward and reverse rotation condition of the gear transmission structure 300. When the gear shaft transmission structure 300 rotates forward, the driving structure can obtain forward rotation information and correspondingly drive the blocking structure to move to block the second oil spraying hole, the oil spraying pipe 2 can spray oil along the forward rotation direction of the gear shaft transmission structure 300 through the first oil spraying hole, when the gear shaft transmission structure 300 rotates reversely, the driving structure can obtain forward rotation information and correspondingly drive the blocking structure to move to block the first oil spraying hole, the oil spraying pipe 2 can spray oil along the reverse rotation direction of the gear shaft transmission structure 300 through the second oil spraying hole, and the switching valve can adopt an electromagnetic valve or a hydraulic valve.
It should be explained that, the driving structure may obtain the forward and reverse rotation information of the gear shaft transmission structure 300 through electrically connecting to a main control board of the vehicle, or may be detected by a forward and reverse rotation detection sensor, which is not limited in the embodiment of the present utility model; the driving of the blocking structure on the switching valve by the driving structure may be implemented by electromagnetic driving or by hydraulic driving, which is not limited in the embodiment of the present utility model.
It can be appreciated that the conventional mechanical oil pump can only continuously pump oil, but cannot control the oil pumping amount according to the actual lubrication requirement, and in this embodiment, the oil pumping device 3 includes an electronic pump 31 disposed in the housing structure 1, a pump oil port of the electronic pump 31 is correspondingly connected to the channel inlet, and an oil suction port of the electronic pump 31 is correspondingly connected to the oil return cavity 231. Through adopting the electronic pump 31 can realize the pump oil mass adjustment according to actual lubrication demand through controlling the rotational speed to accomplish the pump oil as required, can effectively reduce the energy loss that gear shaft transmission structure 300 stirs oil lubrication and bring, promote the transmission overall transmission efficiency.
Since the oil spray pipe 2 is generally required to be mounted to the housing structure 1 at a later stage, it is inevitably required to face the problem of oil sealing, and in this embodiment, a sealing gasket 4 is provided between the oil spray pipe 2 and the housing structure 1. The sealing gasket 4 can effectively seal the oil, so that oil leakage is avoided at the installation position of the oil injection pipe 2 and the shell structure 1, and the oil passing efficiency is ensured.
In addition, in order to achieve the above object, the present utility model further provides a transmission 1000, where the transmission 1000 includes the transmission lubrication structure 100 according to the above technical solution. It should be noted that, the detailed structure of the transmission lubrication structure 100 of the transmission 1000 may refer to the embodiment of the transmission lubrication structure 100 described above, and will not be described herein again; since the transmission lubrication structure 100 is used in the transmission 1000 of the present utility model, the embodiments of the transmission 1000 of the present utility model include all the technical solutions of all the embodiments of the transmission lubrication structure 100, and the achieved technical effects are identical, and are not described in detail herein.
Further, in this embodiment, the transmission 1000 includes a transmission housing 200 and a gear shaft transmission structure 300, the transmission housing 200 has a middle housing 220 and a rear housing 210 which are disposed opposite to each other, so as to form a mounting cavity 230 and an oil return cavity 231 disposed at the bottom of the mounting cavity 230 therebetween, the gear shaft transmission structure 300 is rotatably disposed in the mounting cavity 230, wherein the housing structure 1 includes the rear housing 210, two ends of the oil injection pipe 2 are disposed on opposite sidewalls of the middle housing 220 and the rear housing 210, respectively, and the oil pumping device 3 is disposed on the rear housing 210 and is respectively connected to the oil return cavity 231 and the channel inlet. Since the length of the gear shaft transmission structure 300 is generally longer, the oil spray pipe 2 is generally required to be longer, and the two ends of the longer oil spray pipe 2 can be respectively disposed on the middle housing 220 and the rear housing 210, so that the installation stability of the oil spray pipe 2 can be increased, and the oil spray pipe 2 is prevented from falling off.
In the above embodiment, the oil spray pipe 2 is connected to the transmission housing 200 only at two ends, and the middle long suspended portion may bear bending stress, so as to relieve the connection pressure at two ends of the oil spray pipe 2 and avoid bending deformation of the oil spray pipe 2, in this embodiment, the middle portion of the oil spray pipe 2 is connected to the upper side wall of the mounting cavity 230 through the support structure 400. The support structure 400 can increase the connection point of the oil spray pipe 2, so that the risk of bending deformation or falling of the oil spray pipe 2 is reduced.
The support structure 400 may be a bolt fastening structure or a tie fastening structure, which is not limited in this embodiment of the present utility model.
Specifically, the transmission 1000 includes a longitudinal dual clutch transmission.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. A transmission lubrication structure, comprising:
the oil-passing channel is formed in the shell structure, and is provided with a channel outlet at the upper end and a channel inlet at the lower end;
the oil injection pipe is arranged on the shell structure and communicated with the channel outlet, a first oil injection hole is formed in the pipe wall of the oil injection pipe, and the first oil injection hole is arranged towards the forward rotation direction of the corresponding gear shaft transmission structure; the method comprises the steps of,
and the oil pumping device is communicated with the channel inlet and is used for pumping the oil which flows back into the oil return cavity into the oil passing channel.
2. The transmission lubrication structure according to claim 1, wherein the first oil spray holes are provided in plural along a length direction of the oil spray pipe corresponding to plural tooth shaft transmission structures.
3. The transmission lubrication structure according to claim 1, wherein the oil spray pipe is further formed with an extension branch pipe for being disposed toward a rotation direction of the corresponding tooth shaft transmission structure, and the extension branch pipe is disposed obliquely downward;
the first oil injection hole is formed in the extension branch pipe.
4. The transmission lubrication structure according to claim 1, wherein the oil spray pipe is further formed with a second oil spray hole opposite to the first oil spray hole, the second oil spray hole being arranged to face a reverse rotation direction of the corresponding tooth shaft transmission structure;
the transmission lubrication structure further includes:
the switching valve is arranged in the oil injection pipe and is provided with a blocking structure which can be movably arranged, and the blocking structure can block the first oil injection hole or the second oil injection hole on the moving stroke of the switching valve; the method comprises the steps of,
the driving structure is used for driving the blocking structure to move according to the forward and reverse rotation condition of the gear shaft transmission structure.
5. The transmission lubrication structure according to claim 1, wherein the oil pumping device comprises an electronic pump provided in the housing structure, a pump oil port of the electronic pump is provided correspondingly in communication with the channel inlet, and an oil suction port of the electronic pump is provided correspondingly in communication with the oil return cavity.
6. The transmission lubrication structure according to claim 1, wherein a sealing gasket is provided between the oil spray pipe and the housing structure.
7. A transmission comprising the transmission lubrication structure according to any one of claims 1 to 6.
8. The transmission of claim 7, wherein the transmission comprises:
a transmission housing having a middle housing and a rear housing disposed opposite to each other so as to form a mounting chamber therebetween and an oil return chamber at the bottom of the mounting chamber; the method comprises the steps of,
the gear shaft transmission structure is rotationally arranged in the mounting cavity;
the shell structure comprises a rear shell, and two ends of the oil injection pipe are respectively arranged on opposite side walls of the middle shell and the rear shell;
the oil pumping device is arranged on the rear shell and is respectively communicated with the oil return cavity and the channel inlet.
9. The transmission of claim 8, wherein the middle portion of the spray bar is connected to the upper sidewall of the mounting cavity by a support structure.
10. The transmission of claim 7, wherein the transmission comprises a longitudinal dual clutch transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654830.0U CN219570828U (en) | 2023-03-28 | 2023-03-28 | Transmission lubricating structure and transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654830.0U CN219570828U (en) | 2023-03-28 | 2023-03-28 | Transmission lubricating structure and transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570828U true CN219570828U (en) | 2023-08-22 |
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ID=87658997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320654830.0U Active CN219570828U (en) | 2023-03-28 | 2023-03-28 | Transmission lubricating structure and transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570828U (en) |
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2023
- 2023-03-28 CN CN202320654830.0U patent/CN219570828U/en active Active
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