CN217633769U - Spiral oil guide speed changer and new energy vehicle - Google Patents
Spiral oil guide speed changer and new energy vehicle Download PDFInfo
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- CN217633769U CN217633769U CN202221279961.7U CN202221279961U CN217633769U CN 217633769 U CN217633769 U CN 217633769U CN 202221279961 U CN202221279961 U CN 202221279961U CN 217633769 U CN217633769 U CN 217633769U
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Abstract
The utility model belongs to the technical field of transmission, especially, relate to an oil derailleur and new forms of energy car are led to spiral. The utility model discloses a: the output shaft and the input shaft are coaxially arranged, and the output shaft is sleeved on the input shaft; the first bearing is positioned at one end, close to the output shaft, of the input shaft, an inner ring of the first bearing is assembled with the output shaft, and an outer ring of the first bearing is assembled with the input shaft; an intermediate shaft, the axis of which is parallel to the axis of the input shaft and/or the output shaft; an intermediate gear provided on the intermediate shaft; an input gear rotating synchronously with the input shaft and engaged with the intermediate gear; an output gear rotating synchronously with the output shaft and meshed with the intermediate gear; the outer surface of the input gear is provided with a spiral oil guide channel, and one end of the oil guide channel is communicated with the first bearing. The utility model discloses can make the bearing of shafting intermediate position obtain lubricated fully.
Description
Technical Field
The utility model relates to a transmission technical field especially relates to an oil derailleur and new forms of energy car are led to spiral.
Background
The transmission is an important transmission of a vehicle. A large percentage of transmission failures are caused by poor lubrication based on after-market statistics of the automobile. Because the inside of the speed changer is mostly provided with gears and bearings rotating at high speed, sufficient lubrication is a necessary condition for ensuring the service life of the speed changer.
In the lubrication design of the speed changer, a splash lubrication scheme with simple structure and low cost is generally adopted, and the scheme mainly depends on oil stirring of the gears, so that splashed lubricating oil reaches the positions of bearings and gears in the speed changer to realize lubrication; through long-term research design and verification of a splash lubrication system, the currently adopted splash lubrication mode can basically meet the requirement for internal bearings and gears of a mechanical transmission adopting a conventional arrangement mode.
However, in order to meet the requirements of different application scenarios, some transmissions also adopt a special arrangement mode, for example, a patent with publication number CN201884574U discloses a three-shaft type automobile transmission, which includes a first shaft, a second shaft and an intermediate shaft, wherein the first shaft and the second shaft are coaxially arranged, the intermediate shaft, the first shaft and the second shaft are arranged in parallel, and the first shaft and the second shaft are sleeved together through a bearing at a middle position. The lubricating oil splashed after being stirred by adopting the arrangement mode is not easy to flow into the bearing positioned at the middle position, so that the middle bearing cannot be effectively lubricated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an oil derailleur and new forms of energy automobile-used bearing lubrication insufficient technical problem who is used for solving current derailleur intermediate position are led to the spiral.
The utility model adopts the technical proposal that:
in a first aspect, the utility model provides an oil derailleur is led to spiral, include:
the input shaft is used for receiving power output by the power device;
the output shaft is used for outputting the power of the transmission, the output shaft and the input shaft are coaxially arranged, and the output shaft is sleeved on the input shaft;
the first bearing is positioned at one end, close to the output shaft, of the input shaft, an inner ring of the first bearing is assembled with the output shaft, and an outer ring of the first bearing is assembled with the input shaft;
an intermediate shaft, the axis of which is parallel to the axis of the input shaft and/or the output shaft;
an intermediate gear provided on the intermediate shaft;
an input gear rotating synchronously with the input shaft and engaged with the intermediate gear;
an output gear rotating synchronously with the output shaft and engaged with the intermediate gear;
the outer surface of the input gear is provided with a spiral oil guide channel, and one end of the oil guide channel is communicated with the first bearing.
Preferably, the spiral oil guide channel has the same rotation direction as the rotation direction of the input shaft.
Preferably, the output shaft is provided with an oil hole at an axial position corresponding to the oil guide passage, the oil hole communicating the oil guide passage with an outer surface of the input shaft.
Preferably, the number of the oil holes is plural, and the plural oil holes are uniformly arranged on the output shaft along the circumferential direction of the output shaft.
Preferably, the oil guide channel is provided in plurality, the oil guide channels are arranged along the circumferential direction of the input shaft, and the end of each oil guide channel facing the first bearing is located at a different position in the circumferential direction of the input shaft.
Preferably, the input shaft is provided with a first step, and the first step is located at one end of the spiral oil guide channel, which faces away from the first bearing.
Preferably, the output gear comprises a first output gear and a second output gear;
the intermediate gear comprises a first intermediate gear, a second intermediate gear and a third intermediate gear, the intermediate shaft is also provided with a synchronizer which synchronously rotates with the intermediate shaft, and the synchronizer is positioned between the second intermediate gear and the third intermediate gear;
the first intermediate gear is fixedly connected with the intermediate shaft, and the second intermediate gear and the third intermediate gear can be respectively sleeved on the intermediate shaft in a manner of rotating relative to the intermediate shaft;
the input gear is engaged with the first intermediate gear, the first output gear is engaged with the second intermediate gear, and the second output gear is engaged with the third intermediate gear.
Preferably, the gear transmission mechanism further comprises a second bearing, wherein the second bearing is located at the axial position of the first output gear, and the first bearing is located at the axial position of the second output gear.
Preferably, the first output gear and the output shaft are of an integrated structure, the output shaft is provided with a shaft hole, the shaft hole is arranged along the axial direction of the output shaft, the first output gear is located at one end of the output shaft facing the input shaft, the first output gear is provided with a chamber for accommodating the second bearing and the input shaft, the chamber is communicated with the shaft hole, an opening is further arranged at the end part of the first output gear facing the output shaft, the opening is communicated with the chamber, and at least one part of the output shaft penetrates into the shaft hole after penetrating through the chamber through the opening.
In a second aspect, the present invention provides a new energy vehicle, including the first aspect the spiral oil guide transmission, or the second aspect the transmission.
Has the advantages that: the utility model discloses an oily derailleur and new forms of energy car are led to spiral is established the output shaft cover on the input shaft to utilize the setting to establish the rotatable support of input shaft at the first bearing of input shaft tip in fact. Meanwhile, the spiral oil guide channel arranged on the outer surface of the input shaft is used for guiding the lubricating oil on the outer surface of the input shaft into the position of the first bearing positioned in the middle of the shafting, so that the first bearing can be lubricated more fully.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic three-dimensional structure diagram of the spiral oil guide transmission of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the helical oil guide transmission of the present invention;
FIG. 3 is an exploded view of the helical oil guide transmission of the present invention;
fig. 4 is a cross-sectional view of the spiral oil guide transmission of the present invention;
fig. 5 is a schematic view of the structure of the input shaft of the present invention;
fig. 6 is a schematic diagram of the output shaft structure of the present invention.
Parts and numbers in the drawings:
the transmission comprises an input shaft 10, an input gear 11, a first step 12, an intermediate shaft 20, a first intermediate gear 21, a second intermediate gear 22, a third intermediate gear 23, an output shaft 30, a first output gear 31, a second output gear 32, oil holes 33, a cavity 34, a shaft hole 35, an opening 36, a first bearing 41, a second bearing 42, an oil guide channel 50 and a synchronizer 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. If there is no conflict, the embodiments of the present invention and various features in the embodiments can be combined with each other, all of which are within the scope of the present invention.
Example 1
As shown in fig. 1 and 3, the present embodiment provides a helical oil-guiding transmission including an input shaft 10, an output shaft 30, a first bearing 41, an intermediate shaft 20, an intermediate gear, an input gear 11, and an output gear. In the present embodiment, the power generated by the power plant of the automobile is transmitted to the input shaft 10, then transmitted to the intermediate shaft 20 from the input shaft 10, then transmitted to the output shaft 30 from the intermediate shaft 20, and finally transmitted to the rear axle of the automobile from the output shaft 30.
Wherein the input shaft 10 is used for receiving power output by the power device; the power plant includes, but is not limited to, an engine and an electric motor. Wherein the output end of the power device can be in transmission connection with the input shaft 10 so as to transmit the power of the power device to the input shaft 10. For example, a spline may be provided at an end of the input shaft 10 facing the power unit output end, and then a half of the connector may be connected to the input shaft 10 by the spline. The other half of the coupling is connected with the output end of the power device.
The output shaft 30 is used for outputting power of the transmission, the output shaft 30 and the input shaft 10 are coaxially arranged, and the output shaft 30 is sleeved on the input shaft 10; wherein the power of the output shaft 30 can be output to the rear axle of the vehicle.
Wherein the input shaft 10 and the output shaft 30 are coaxially arranged means that the axis of the input shaft 10 and the axis of the output shaft 30 are located on the same straight line. In order to make the structure of the transmission more compact and further reduce the space occupied by the transmission, in this embodiment, on the basis of coaxially arranging the output shaft 30 and the input shaft 10, the output shaft 30 is sleeved on the input shaft 10, so that a part of the input shaft 10 can enter the output shaft 30, and the whole transmission is more compact.
Wherein a first bearing 41 is positioned at one end of the input shaft 10 close to the output shaft 30, an inner ring of the first bearing 41 is assembled with the output shaft 30, and an outer ring is assembled with the input shaft 10;
the present embodiment uses the first bearing 41 to form the rotatable connection between the input shaft 10 and the output shaft 30, wherein the first bearing 41 is located at the end of the input shaft 10 inserted into the output shaft 30, so that the input shaft 10 and the output shaft 30 can be well supported. In practice, the outer race of the first bearing 41 may be fitted with the inner bore of the output shaft 30, and the inner race of the first bearing 41 may be fitted with the outer wall of the end of the input shaft 10. In a specific embodiment, the first bearing 41 may be supported by the shaft hole 35 of the output shaft 30 and the outer wall of the end of the input shaft 10. Thus, the input shaft 10 can rotate at a relatively high speed while being coaxially arranged with the output shaft 30, and can support each other.
In the present embodiment, the intermediate shaft 20 may be used as a transition shaft for realizing a predetermined gear ratio output, and the power of the input shaft 10 is transmitted to the output shaft 30 through the transition of the intermediate shaft 20, so that the predetermined gear ratio output is realized during the transition. Since the input shaft 10 and the output shaft 30 are both in a transmission relationship with the intermediate shaft 20, the axis of the intermediate shaft 20 is parallel to the axis of the input shaft 10 and/or the axis of the output shaft 30 in the embodiment, so that the input shaft 10 can transmit power to the intermediate shaft 20 and the intermediate shaft 20 can transmit power to the output shaft 30 at the same time;
an intermediate gear of the present embodiment provided on the intermediate shaft 20; the input gear 11 rotates synchronously with the input shaft 10 and is meshed with the intermediate gear; wherein the output gear rotates synchronously with the output shaft 30 and meshes with the intermediate gear;
since the input shaft 10 and the output shaft 30 are coaxially arranged and the first bearing 41 is located at the middle position of the shafting formed by the input shaft 10 and the output shaft 30, the splashed lubricating oil hardly reaches the position of the first bearing 41, and thus the bearings are hardly lubricated sufficiently. The input shaft 10 and the output shaft 30 are relatively rotated at a high speed by the first bearing 41, and thus the bearing is easily damaged.
In this embodiment, the outer surface of the input shaft 10 is provided with a spiral oil guide channel 50, and one end of the oil guide channel 50 opens into the first bearing 41. The lubricant oil thus applied to the outer surface of the input gear 11 can flow along the spiral oil guide passage 50 to the position of the first bearing 41, so that the first bearing 41 can be lubricated more sufficiently. Wherein the spiral oil guide passage 50 may employ a spiral oil guide groove formed on the surface of the input gear 11. With the foregoing structure, the surface of the input shaft 10 can be machined by turning or the like, which can reduce the assembly process. In the present embodiment, it is also possible to separately manufacture a separate part having the structure of the oil guide passage 50 and then interference-fit the part to the corresponding position of the input shaft 10.
In this embodiment, the spiral oil guiding channel 50 is preferably rotated in the same direction as the input shaft 10. Thus, when the input shaft 10 rotates, the lubricating oil is guided to the position of the first bearing 41 through the spiral oil guide passage 50. As one of preferable embodiments, the first bearing 41 in this embodiment may be a needle bearing.
In order to sufficiently lubricate each position of the first bearing 41 in the circumferential direction, in the present embodiment, the oil guide passage 50 is provided in plurality, and the plurality of oil guide passages 50 are provided along the circumferential direction of the input shaft 10. Thus, the oil guide passage 50 is provided at each circumferential position of the input shaft 10, and the lubricating oil splashed to different circumferential positions on the input shaft 10 can flow to the first bearing 41 through the oil guide passage 50.
Further, in the present embodiment, the end portions of the respective oil guide passages 50 toward the first bearing 41 are located at different positions in the circumferential direction of the input shaft 10. This makes it possible to cause the lubricant to flow to various circumferential positions of the first bearing 41, thereby allowing the first bearing 41 to be lubricated more sufficiently.
In this embodiment, a first step 12 is disposed on the input shaft 10, and the first step 12 is located at an end of the spiral oil guiding channel 50 facing away from the first bearing 41. In this embodiment, a step may be disposed at an end of the spiral oil guiding channel 50 away from the first bearing 41 to block the spiral oil guiding channel 50, so that more lubricant oil flows toward the first bearing 41.
In the present embodiment, the output gears include a first output gear 31 and a second output gear 32;
the intermediate gears comprise a first intermediate gear 21, a second intermediate gear 22 and a third intermediate gear 23, the intermediate shaft 20 is further provided with a synchronizer 60 which rotates synchronously with the intermediate shaft 20, and the synchronizer 60 is positioned between the second intermediate gear 22 and the third intermediate gear 23; the input gear 11 meshes with the first intermediate gear 21, the first output gear 31 meshes with the second intermediate gear 22, and the second output gear 32 meshes with the third intermediate gear 23.
The first intermediate gear 21 is fixedly connected with the intermediate shaft 20, the power of the input shaft 10 is transmitted to the first intermediate gear 21 through the first input gear 11, and the first intermediate gear 21 transmits the power to the intermediate shaft 20. The second intermediate gear 22 and the third intermediate gear 23 are respectively sleeved on the intermediate shaft 20 in a manner of being capable of rotating relative to the intermediate shaft 20. When the synchronizer 60 is combined with the second intermediate gear 22, the intermediate shaft 20 can drive the second intermediate gear 22 to synchronously rotate through the synchronizer 60, and the power of the intermediate shaft 20 is transmitted to the output shaft 30 through the second intermediate gear 22; when the synchronizer 60 is combined with the third intermediate gear 23, the intermediate shaft 20 drives the third intermediate gear 23 to synchronously rotate through the synchronizer 60, and the power of the intermediate shaft 20 is transmitted to the output shaft 30 through the third intermediate gear 23. In the present embodiment, the second intermediate gear 22 and the third intermediate gear 23 may be respectively mounted on the intermediate shaft 20 via needle bearings.
The helical oil guiding transmission in the present embodiment further includes a second bearing 42, wherein the second bearing 42 is located at an axial position of the first output gear 31, and the first bearing 41 is located at an axial position of the second output gear 32.
In the embodiment, the first bearing 41 and the second bearing 42 are utilized to support the input shaft 10 from two different axial positions together, and the high-speed rotation of the input shaft 10 relative to the output shaft 30 is realized, so that the whole shaft system can have good stability in the high-speed rotation.
In a preferred embodiment, the first output gear 31 and the output shaft 30 are integrally formed, that is, the first output gear 31 and the output shaft 30 are the same component. In order to simplify the assembly process, the input gear 11 and the output shaft 30 in this embodiment may also be of an integrated structure, and the input gear 11 may be machined directly on the outer surface of the input shaft 10 during manufacturing.
The output shaft 30 is provided with a shaft hole 35, the shaft hole 35 is arranged along the axial direction of the output shaft 30, the first output gear 31 is located at one end of the output shaft 30 facing the input shaft 10, the first output gear 31 is provided with a chamber 34 for accommodating the second bearing 42 and the input shaft 10, the chamber 34 is communicated with the shaft hole 35, the end of the first output gear 31 facing the output shaft 30 is further provided with an opening 36, the opening 36 is communicated with the chamber, and at least one part of the output shaft 30 penetrates into the shaft hole 35 after penetrating through the chamber 34 through the opening 36.
In the present embodiment, a cavity 34 is opened at one end of the output shaft 30 where the first output gear 31 is provided, and a second bearing 42 is mounted on an inner wall of the cavity 34, so that the output shaft 30 supports the input shaft 10 via the second bearing 42.
In the present embodiment, the output shaft 30 is provided with an oil hole 33 communicating the oil guide passage 50 with the outer surface of the input shaft 10 at an axial position corresponding to the oil guide passage 50. The lubricating oil thus splashed onto the output shaft 30 can flow into the oil guide passage 50 through the oil holes 33.
As one of preferred embodiments, the number of the oil holes 33 is plural, and the plural oil holes 33 are uniformly provided on the output shaft 30 in the circumferential direction of the output shaft 30. Thus, the lubricating oil at each circumferential position can flow into the oil guide passage 50, thereby increasing the amount of the lubricating oil that eventually flows toward the first bearing 41.
Example 2
The present embodiment provides a new energy vehicle including the helical oil guiding transmission described in embodiment 1.
As described above, only for the specific implementation manner of the present invention, those skilled in the art can clearly understand that, for convenience and simplicity of description, the specific working process of the system, the module and the unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be described again here. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.
Claims (10)
1. A helical oil guiding transmission is characterized by comprising:
the input shaft is used for receiving power output by the power device;
the output shaft is used for outputting the power of the transmission, the output shaft and the input shaft are coaxially arranged, and the output shaft is sleeved on the input shaft;
the first bearing is positioned at one end, close to the output shaft, of the input shaft, an inner ring of the first bearing is assembled with the output shaft, and an outer ring of the first bearing is assembled with the input shaft;
an intermediate shaft, the axis of which is parallel to the axis of the input shaft and/or the output shaft;
an intermediate gear provided on the intermediate shaft;
an input gear rotating synchronously with the input shaft and engaged with the intermediate gear;
an output gear rotating synchronously with the output shaft and engaged with the intermediate gear;
the outer surface of the input shaft is provided with a spiral oil guide channel, and one end of the oil guide channel is communicated with the first bearing.
2. The spiral oil guiding transmission according to claim 1, wherein the spiral oil guiding channel has the same rotation direction as the input shaft.
3. The helical oil guiding transmission according to claim 1, wherein an oil hole communicating the oil guiding passage with an outer surface of the input shaft is provided at an axial position of the output shaft corresponding to the oil guiding passage.
4. The helical oil guiding transmission according to claim 3, wherein the number of the oil holes is plural, and the plural oil holes are uniformly provided on the output shaft in a circumferential direction of the output shaft.
5. The spiral oil guide transmission according to claim 1, wherein the oil guide passage is plural, and plural oil guide passages are provided along a circumferential direction of the input shaft, each oil guide passage being located at a different position in the circumferential direction of the input shaft toward an end of the first bearing.
6. The spiral oil guide transmission according to claim 1, wherein a first step is provided on the input shaft at an end of the spiral oil guide passage facing away from the first bearing.
7. The spiral guided oil transmission of any of claims 1 to 6, wherein the output gear comprises a first output gear and a second output gear;
the intermediate gear comprises a first intermediate gear, a second intermediate gear and a third intermediate gear, the intermediate shaft is also provided with a synchronizer which synchronously rotates with the intermediate shaft, and the synchronizer is positioned between the second intermediate gear and the third intermediate gear;
the first intermediate gear is fixedly connected with the intermediate shaft, and the second intermediate gear and the third intermediate gear can be respectively sleeved on the intermediate shaft in a rotating manner relative to the intermediate shaft;
the input gear is engaged with the first intermediate gear, the first output gear is engaged with the second intermediate gear, and the second output gear is engaged with the third intermediate gear.
8. The helical oil guiding transmission as defined in claim 7, further comprising a second bearing located at an axial position of the first output gear, the first bearing located at an axial position of the second output gear.
9. The spiral oil guiding transmission as claimed in claim 8, wherein the first output gear is integrated with the output shaft, the output shaft is provided with a shaft hole, the shaft hole is arranged along the axial direction of the output shaft, the first output gear is located at one end of the output shaft facing the input shaft, the first output gear is provided with a chamber for accommodating the second bearing and the input shaft, the chamber is communicated with the shaft hole, the end of the first output gear facing the output shaft is further provided with an opening, the opening is communicated with the chamber, and at least one part of the output shaft penetrates into the shaft hole after passing through the chamber through the opening.
10. The new energy vehicle, characterized by comprising the helical oil guiding transmission according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279961.7U CN217633769U (en) | 2022-05-26 | 2022-05-26 | Spiral oil guide speed changer and new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221279961.7U CN217633769U (en) | 2022-05-26 | 2022-05-26 | Spiral oil guide speed changer and new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633769U true CN217633769U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221279961.7U Active CN217633769U (en) | 2022-05-26 | 2022-05-26 | Spiral oil guide speed changer and new energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633769U (en) |
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2022
- 2022-05-26 CN CN202221279961.7U patent/CN217633769U/en active Active
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