Transmission for vehicle

Abstract

The invention relates to the technical field of vehicle transmission lubrication, in particular to a vehicle transmission. The transmission comprises a box body provided with a first chamber and a second chamber; the main box output assembly is mounted in the first chamber; the auxiliary box input assembly is mounted in the second chamber; wherein the main box output assembly is provided with a gear shifting gear assembly and an output shaft, and the auxiliary box input assembly is provided with a planetary gear train; a main shaft of the gear shifting gear assembly is provided with a channel penetrating through the two ends along a center shaft of the main shaft, the output shaft, the main shaft and a sun gear of the planetary gear train coincide with the center axis, and the channel penetrates through the output shaft to the planetary gear train to form a lubricating oil distribution structure. The lubricating oil conveying assembly is used for conveying lubricating oil to the main box output assembly and the auxiliary box input assembly. According to the transmission, the lubricating oil distribution structure enables lubricating oil to flow from the center to the periphery, the situation that parts in the transmission are ablated due to lack of lubrication can be avoided, and the quality of the transmission is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle transmission lubrication, in particular to a vehicle transmission. Background Art

[0002] In the prior art, the transmission is a key component of the vehicle, and its working efficiency directly affects the power performance and fuel economy of the vehicle. The existing vehicle transmission usually uses oil bath, splashing and other methods to lubricate the gears, shafts and other components in the transmission.

[0003] However, due to the high-speed rotation of the gears, the oil will be thrown away under the action of centrifugal force, and it is difficult to enter the contact surfaces of the components that are in relative motion during the driving of the vehicle. In addition, due to the numerous components in the transmission case and the complex transmission structure, it is difficult to set up a separate pipeline that can supply lubricating oil to multiple components at the same time. However, by opening a channel on a rotating shaft to supply oil to each component, it is easy to cause oil leakage, insufficient oil pressure, and failure to supply oil to the transmission components in different chambers. Therefore, it often causes the main shaft assembly, auxiliary box input assembly or transmission assembly to burn due to insufficient lubrication, greatly reducing the quality of the transmission. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a transmission for a vehicle, so that the contact surface of the relatively moving components in the transmission is continuously lubricated during the driving process of the vehicle, thereby avoiding ablation due to lack of lubrication, thereby improving the quality of the transmission.

[0005] The present invention provides a transmission for a vehicle, the transmission for the vehicle comprising: The box body is provided with a first chamber and a second chamber; A main box output assembly is installed in the first chamber; Auxiliary box input assembly, installed in the second chamber; Wherein, the main box output assembly has a shift gear assembly and an output shaft, and the auxiliary box input assembly has a planetary gear train; The main shaft of the shift gear assembly is provided with a channel running through both ends along its central axis, the output shaft, the main shaft and the sun gear of the planetary gear train are arranged with the same central axis, and the channel runs from the output shaft to the planetary gear train to form a lubricating oil distribution structure for delivering lubricating oil to the main box output assembly and the auxiliary box input assembly.

[0006] According to a vehicle transmission provided by the present invention, the sun gear is provided with a through hole passing through both ends along its central axis, and the lubricating oil distribution structure also includes an anti-slip guide tube located in the through hole, one end of the anti-slip guide tube is connected to the channel, and the other end of the anti-slip guide tube protrudes axially from the sun gear.

[0007] According to a vehicle transmission provided by the present invention, the planetary gear train comprises an input shaft arranged to coincide with the central axis of the sun gear, one end of the input shaft abuts against the sun gear, and the other end of the input shaft cantilevers out of the second chamber; A large blind hole extending along the central axis of the input shaft is provided on the end surface of the input shaft, and the anti-slip guide tube extends into the large blind hole.

[0008] According to a vehicle transmission provided by the present invention, the planetary gear train includes planetary gears distributed on the outer periphery of the sun gear, and the input shaft is provided with an oil delivery hole extending from the side wall of the large blind hole to the end face of the input shaft for connecting the large blind hole and the planetary gears.

[0009] According to a vehicle transmission provided by the present invention, the planetary gear train further includes a planetary gear shaft provided with a guide hole, one end of the planetary gear shaft is inserted into the end surface of the input shaft and the guide hole is connected to the oil delivery hole.

[0010] According to a vehicle transmission provided by the present invention, the shift gear assembly further comprises a synchronizer sleeved on the main shaft, and the synchronizer can slide along the axial direction of the main shaft; The lubricating oil distribution structure comprises an oil distribution hole arranged on the main shaft, wherein the oil distribution hole extends from the side wall of the channel to the outer wall of the main shaft in the radial direction of the main shaft, and is used for supplying lubricating oil to the synchronizer.

[0011] According to a vehicle transmission provided by the present invention, the lubricating oil distribution structure also includes an oil filling hole arranged on the output shaft, the output shaft is rotatably connected to the main shaft at one end, and the oil filling hole extends in the output shaft from the outer wall of the output shaft to the end face of the output shaft and is connected to the channel.

[0012] According to a vehicle transmission provided by the present invention, the end face of the output shaft is provided with a small blind hole extending along the central axis thereof, and the oil filling hole penetrates from the small blind hole to the outside of the output shaft along the radial direction of the output shaft.

[0013] According to a vehicle transmission provided by the present invention, the anti-slip guide tube is provided with a flange plate, and the flange plate extends from the side wall of the anti-slip guide tube to the periphery in a vertical direction of the central axis of the anti-slip guide tube to form a ring shape, and when the anti-slip guide tube is connected to the channel, the flange plate abuts against the end face of the main shaft.

[0014] According to a vehicle transmission provided by the present invention, a through hole is provided on the side wall of the anti-slip guide tube for conveying lubricating oil into the through hole of the sun gear.

[0015] The above one or more technical solutions in the present invention have at least one of the following technical effects: The lubricating oil distribution structure can pass through the components located in different chambers of the transmission along a central axis, so that the lubricating oil can flow from the rotation center of each rotating component to the periphery, ensuring that the contact surfaces of the relatively moving components are continuously lubricated during vehicle driving, thereby avoiding erosion of parts in the transmission due to lack of lubrication, greatly improving the quality of the transmission.

[0016] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted, and the advantages brought about by the technical features of these technical solutions described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a side view of a transmission of a vehicle in an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of the BB cross-sectional structure of the transmission of the vehicle in FIG. 1 (the shift gear assembly is not shown).

[0020] Figure 3 for Figure 1 The DD cross-sectional structural diagram of the transmission of the vehicle in FIG. 1 does not show the shift gear assembly).

[0021] Figure 4 for Figure 1 The EE cross-sectional structural diagram of the transmission of the vehicle in FIG. 1 does not show the shift gear assembly).

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the main box output assembly and the auxiliary box input assembly in an embodiment of the present invention.

[0023] Figure 6 It is a side view of the main box output assembly and the auxiliary box input assembly in an embodiment of the present invention.

[0024] Figure 7 for Figure 6 Schematic diagram of the AA section structure of the main box output assembly and the auxiliary box input assembly.

[0025] Figure 8 for Figure 7 An enlarged schematic diagram of the K partial view of the main box output assembly and the auxiliary box input assembly.

[0026] Reference numerals: 100, housing; 110, first chamber; 120, second chamber; 200, main case output assembly; 210, output shaft; 211, oil filling hole; 212, small blind hole; 220, shift gear assembly; 221, main shaft; 222, passage; 223, oil distribution hole; 224, stop guide tube; 225, flange plate; 226, through hole; 227, synchronizer; 230, main shift gear set; 240, auxiliary shift gear set; 300, auxiliary case input assembly; 310, input shaft; 311, large blind hole; 312, oil delivery hole; 320, planetary gear train; 321, sun gear; 322, through hole; 323, planetary gear; 324, planetary gear shaft; 325, guide hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] In the present invention, a blind hole refers to a hole that is opened only on one side of an object and does not penetrate the object, which is different from the through hole 226 that penetrates both sides of the object and can be seen from both sides.

[0033] As a key component of a vehicle, the working efficiency of the transmission directly affects the power performance and fuel economy of the vehicle. In the transmission, the shaft and the housing 100, the gears and the shaft, etc. are often movably connected through rolling bearings or sliding sleeves. The high-speed rotation of the gears and shafts during the driving of the vehicle will generate a large amount of heat due to friction. Therefore, the transmission often uses oil baths, splashing and other methods to lubricate the gears, shafts and other components in the transmission, so that an oil film is formed on the contact surface of relative motion to reduce the friction coefficient and reduce heat generation. However, due to the high-speed rotation of the gears, the oil will be thrown away under the action of centrifugal force, and it is difficult to enter between the contact surfaces of the components that are in relative motion during the driving of the vehicle.

[0034] In order to solve the above problems, in an embodiment of the present invention, a transmission for a vehicle is introduced.

[0035] like Figures 1 to 8 As shown, the transmission includes a case 100 , a main case output assembly 200 and an auxiliary case input assembly 300 .

[0036] Specifically, the housing 100 is provided with a first chamber 110 and a second chamber 120. The main case output assembly 200 is installed in the first chamber 110. The auxiliary case input assembly 300 is installed in the second chamber 120. In addition, the main case output assembly 200 has a shift gear assembly 220 and an output shaft 210. The auxiliary case input assembly 300 has a planetary gear train 320 and a clutch assembly.

[0037] The planetary gear train 320 includes planetary gears 323, planetary gear shafts 324, sun gears 321 and input shafts 310. Among them, a number of planetary gears 323 are evenly distributed on the periphery of the sun gear 321 and mesh with the sun gear 321. The input shaft 310 and the sun gear 321 are arranged to coincide with the central axis and are arranged adjacently along the axial direction. One end of the input shaft 310 is located in the second chamber 120, and the other end of the input shaft 310 is cantilevered out of the second chamber 120. In addition, the clutch assembly is sleeved on the outer peripheral surface of the input shaft 310, which is used to transmit torque to the input shaft 310 and is connected or disconnected by the driver's control.

[0038] Specifically, the shift gear assembly 220 includes a main shift gear set 230 and an auxiliary shift gear set 240. The main shift gear set 230 is arranged to coincide with the central axis of the housing 100. The two auxiliary shift gear sets 240 are symmetrically distributed on both sides of the main shift gear set 230.

[0039] In addition, the main shaft 221 of the main shift gear set 230 is provided with a channel 222 that passes through both ends along its central axis. The output shaft 210, the main shaft 221 and the sun gear 321 of the planetary gear train 320 are arranged to coincide with the central axis. In addition, the channel 222 passes from the output shaft 210 to the planetary gear train 320 to form a lubricating oil distribution structure for delivering lubricating oil to the rolling contact surface and / or sliding contact surface in the main box output assembly 200 and the auxiliary box input assembly 300.

[0040] In this embodiment, the lubricating oil distribution structure can penetrate the components located in different chambers of the transmission along a central axis, so that the lubricating oil flows from the rotation center of each rotating component to the periphery, which can ensure that the contact surfaces of the relatively moving components are continuously lubricated during the driving process of the vehicle, thereby avoiding the burning of parts in the transmission due to lack of lubrication, thereby greatly improving the quality of the transmission.

[0041] On the basis of the above-mentioned embodiment, in another embodiment of the present invention, a lubricating oil distribution structure for a vehicle transmission is introduced to solve the problems that the internal transmission structure of the existing transmission is complex, it is difficult to separately set up pipelines that can supply lubricating oil to multiple components at the same time, and a channel 222 is opened on a rotating shaft to supply oil to each component, which is prone to oil leakage and insufficient oil pressure, and it is difficult to continuously and stably supply oil to the transmission components in different chambers in the housing 100.

[0042] like Figure 7 and Figure 8 As shown, the sun gear 321 located in the second chamber 120 is provided with a through hole 322 passing through both ends along its central axis. The lubricating oil distribution structure also includes an anti-slip conduit 224 located in the through hole 322. One end of the anti-slip conduit 224 is connected to the channel 222, and the other end of the anti-slip conduit 224 protrudes from the sun gear 321 along the axial direction.

[0043] Furthermore, the planetary gear train 320 includes an input shaft 310 which is arranged to coincide with the central axis of the sun gear 321 . One end of the input shaft 310 abuts against the sun gear 321 , and the other end of the input shaft 310 is cantilevered outside the second chamber 120 .

[0044] A large blind hole 311 extending along the central axis of the input shaft 310 is disposed on the end surface thereof. The anti-slip guide tube 224 extends into the large blind hole 311 .

[0045] In this embodiment, the lubricating oil can pass through the sun gear 321 through the anti-slip guide tube 224 and accurately enter the planetary gear system 320, thereby preventing the planetary gear 323, sun gear 321, planetary carrier and other components from wearing out the teeth due to poor lubrication, so that the lubricating oil distribution structure can cover the first chamber 110 and the second chamber 120, thereby achieving the effect of comprehensive and complete lubrication of the transmission components in the transmission.

[0046] Based on the above embodiment, in another embodiment of the present invention, a lubricating oil distribution structure capable of supplying lubricating oil to any planetary gear shaft 324 , planetary gear 323 , or the gap between the planetary gear shaft 324 and the planetary gear 323 is introduced.

[0047] like Figure 8 As shown, the planetary gear train 320 includes planetary gears 323 distributed on the periphery of the sun gear 321. The input shaft 310 is provided with an oil delivery hole 312 extending from the side wall of the large blind hole 311 to the end face of the input shaft 310. The oil delivery hole 312 connects the large blind hole 311 and the planetary gear 323. Therefore, after the lubricating oil enters the large blind hole 311 of the input shaft 310 through the anti-slip guide tube 224, the lubricating oil can be supplied to the dispersed planetary gears 323 and other components through the oil delivery hole 312, so as to prevent the planetary gears 323, the sun gear 321, the planet carrier and other components from wearing the teeth due to poor lubrication.

[0048] Based on the above embodiment, in another embodiment of the present invention, a lubricating oil distribution structure arranged in a transmission is introduced.

[0049] Specifically, the planetary gear train 320 further includes a planetary gear shaft 324 provided with a guide hole 325. The planetary gear shaft 324 is plugged into the end surface of the input shaft 310 at one end.

[0050] The guide hole 325 extends from the end to the middle of the planetary gear shaft 324. The path along which the guide hole 325 extends in the planetary gear shaft 324 can be a straight line or a curve.

[0051] Preferably, the guide hole 325 extends along a straight line on a radial surface of the planetary gear shaft 324 .

[0052] More preferably, the guide hole 325 penetrates from the outer peripheral wall on one side of the planetary shaft 324 to the outer peripheral wall on the other side.

[0053] In addition, the guide hole 325 is connected to the oil delivery hole 312, so that the lubricating oil flows from the large blind hole 311 of the input shaft 310 into the gap between the planetary gear shaft 324 and the planetary gear 323 through the oil delivery hole 312 and the guide hole 325, thereby achieving the effect of completely and accurately lubricating each contact surface that performs relative motion.

[0054] Based on the above embodiment, in another embodiment of the present invention, a transmission for a vehicle is introduced.

[0055] like Figures 5 to 7 As shown, the shift gear assembly 220 includes a main shift gear set 230 and an auxiliary shift gear set 240. The main shift gear set 230 is arranged to overlap at the central axis position of the housing 100. The two auxiliary shift gear sets 240 are symmetrically distributed on both sides of the main shift gear set 230. Specifically, the main shift gear set 230 includes a synchronizer 227 sleeved on the main shaft 221. The synchronizer 227 can slide along the axial direction of the main shaft 221.

[0056] During the driving process of the vehicle, the speed of the output shaft 210 of the transmission can be adjusted by the shift gear assembly 220. When shifting gears, first control the clutch assembly to disconnect from the input shaft 310, and then engage the gear. After engaging the gear, the synchronizer 227 first combines with the gear engagement sleeve through the conical surface of its outer periphery, so that the two gears to be meshed and transmitted in the main shift gear set 230 and the auxiliary shift gear set 240 reach the same speed, and then mesh with each other. Finally, the clutch assembly is controlled to connect with the input shaft 310, and torque is transmitted to the input shaft 310 to complete the shifting process. The synchronizer 227 reduces the impact and collision between the gears, avoiding damage to the transmission.

[0057] like Figure 4 and Figure 7As shown, the lubricating oil distribution structure includes an oil distribution hole 223 disposed on the main shaft 221. The oil distribution hole 223 extends from the side wall of the channel 222 to the outer wall of the main shaft 221 along the radial direction of the main shaft 221, and is used to supply lubricating oil to the synchronizer 227.

[0058] Thus, the lubricating oil distribution structure can make the lubricating oil flow from the central axis of the main shaft 221 to the periphery, ensuring that the contact surface between the synchronizer 227 and the main shaft 221 is continuously lubricated during the driving process of the vehicle, avoiding sluggish shifting due to lack of lubrication, and enabling the shift fork that drives the synchronizer 227 to slide to withstand higher intensity and higher frequency impacts, thereby reducing the chance of transmission damage and saving the cost of maintaining the transmission.

[0059] Based on the above embodiment, in another embodiment of the present invention, a transmission for a vehicle is introduced.

[0060] like Figures 2 to 4 As shown, the lubricating oil distribution structure further includes an oil filling hole 211 disposed on the output shaft 210 .

[0061] The output shaft 210 is rotatably sleeved with the main shaft 221 at one end. The oil injection hole 211 extends in the output shaft 210 from the outer wall of the output shaft 210 to the end surface of the output shaft 210. When the output shaft 210 and the main shaft 221 are assembled and docked, the oil injection hole 211 is connected to the channel 222, and the lubricating oil can be continuously fed into the lubricating oil distribution structure through the oil injection hole 211.

[0062] Furthermore, if Figure 3 As shown, in order to ensure that lubricating oil is smoothly input into the lubricating oil distribution structure through the oil injection hole 211 during the rotation of the output shaft 210, an end cover is sleeved on the outer periphery of the output shaft 210. The end cover and the housing 100 form an annular cavity around the outer periphery of the output shaft 210.

[0063] In addition, a small blind hole 212 extending along the central axis of the output shaft 210 is disposed on the end surface of the output shaft 210 . The oil injection hole 211 passes through the small blind hole 212 to the outside of the output shaft 210 along the radial direction of the output shaft 210 .

[0064] Furthermore, the opening of the oil injection hole 211 is located in the above-mentioned cavity, so that the purpose of continuously supplying lubricating oil to the lubricating oil distribution structure during the rotation of the output shaft 210 can be achieved by injecting lubricating oil into the above-mentioned cavity.

[0065] Based on the above embodiment, in another embodiment of the present invention, a transmission for a vehicle is introduced.

[0066] like Figure 8As shown, the anti-slip guide tube 224 is provided with a flange plate 225. The flange plate 225 extends from the side wall of the anti-slip guide tube 224 to the periphery in a ring shape along the vertical direction of the central axis of the anti-slip guide tube 224. When the anti-slip guide tube 224 is connected to the channel 222, the flange plate 225 abuts against the end surface of the main shaft 221.

[0067] In addition, a threaded structure is provided on the outer circumference between one end of the anti-slip guide tube 224 and the flange plate 225. The anti-slip guide tube 224 is connected to the through hole 226 of the main shaft 221 through the threaded structure.

[0068] In addition, a through hole 226 is provided on the side wall of the anti-slip guide tube 224 for conveying lubricating oil into the through hole 322 of the sun gear 321 .

[0069] In this embodiment, the anti-slip guide tube 224 is connected to the main shaft 221 through a threaded structure. When the flange plate 225 abuts against the end face of the main shaft 221, the flange plate 225 and the end face of the main shaft 221 are additionally subjected to friction, thereby increasing the torque required for the anti-slip guide tube 224 to rotate relative to the main shaft 221, thereby preventing the anti-slip guide tube 224 from loosening and falling off from the main shaft 221, thereby solving the problems of oil leakage, insufficient oil pressure, and unstable oil supply caused by the anti-slip guide tube 224 falling off from the channel 222.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission for a vehicle, characterized in that: include: A box body (100) is provided with a first chamber (110) and a second chamber (120); A main box output assembly (200) is installed in the first chamber (110); Auxiliary box input assembly (300) installed in the second chamber (120); The main box output assembly (200) comprises a shift gear assembly (220) and an output shaft (210), and the auxiliary box input assembly (300) comprises a planetary gear train (320); The main shaft (221) of the shift gear assembly (220) is provided with a channel (222) passing through both ends along its central axis; the output shaft (210), the main shaft (221) and the sun gear (321) of the planetary gear train (320) are arranged so as to coincide with the central axis, and the channel (222) passes through from the output shaft (210) to the planetary gear train (320) to form a lubricating oil distribution structure for conveying lubricating oil to the main box output assembly (200) and the auxiliary box input assembly (300).

2. The vehicle transmission according to claim 1, characterized in that: The sun gear (321) is provided with a through hole (322) passing through both ends along its central axis, and the lubricating oil distribution structure further comprises an anti-slip guide tube (224) located in the through hole (322), one end of the anti-slip guide tube (224) is connected to the channel (222), and the other end of the anti-slip guide tube (224) protrudes axially from the sun gear (321).

3. The vehicle transmission according to claim 2, characterized in that: The planetary gear train (320) comprises an input shaft (310) arranged with a central axis coinciding with the sun gear (321), one end of the input shaft (310) abutting against the sun gear (321), and the other end of the input shaft (310) cantilevering outside the second chamber (120); A large blind hole (311) extending along the central axis of the input shaft (310) is provided on the end surface thereof, and the anti-slip guide tube (224) extends into the large blind hole (311).

4. The vehicle transmission according to claim 3, characterized in that: The planetary gear train (320) comprises planetary gears (323) distributed on the periphery of the sun gear (321), and the input shaft (310) is provided with an oil delivery hole (312) extending from the side wall of the large blind hole (311) to the end surface of the input shaft (310) for connecting the large blind hole (311) and the planetary gears (323).

5. The vehicle transmission according to claim 4, characterized in that: The planetary gear train (320) further comprises a planetary gear shaft (324) provided with a guide hole (325); one end of the planetary gear shaft (324) is plugged into the end surface of the input shaft (310), and the guide hole (325) is connected to the oil delivery hole (312).

6. The transmission for a vehicle according to any one of claims 1 to 5, characterized in that: The shift gear assembly (220) further comprises a synchronizer (227) sleeved on the main shaft (221), wherein the synchronizer (227) can slide along the axial direction of the main shaft (221); The lubricating oil distribution structure comprises an oil distribution hole (223) arranged on the main shaft (221); the oil distribution hole (223) extends from the side wall of the channel (222) to the outer wall of the main shaft (221) along the radial direction of the main shaft (221), and is used to supply lubricating oil to the synchronizer (227).

7. The vehicle transmission according to claim 6, characterized in that: The lubricating oil distribution structure further comprises an oil filling hole (211) arranged on the output shaft (210); the output shaft (210) is rotatably sleeved with the main shaft (221) at one end; the oil filling hole (211) extends inside the output shaft (210) from the outer wall of the output shaft (210) to the end surface of the output shaft (210) and is connected to the channel (222).

8. The vehicle transmission according to claim 7, characterized in that: The end surface of the output shaft (210) is provided with a small blind hole (212) extending along the central axis thereof, and the oil injection hole (211) penetrates from the small blind hole (212) to the outside of the output shaft (210) along the radial direction of the output shaft (210).

9. The transmission for a vehicle according to any one of claims 2 to 5, characterized in that: The anti-slip guide tube (224) is provided with a flange plate (225), and the flange plate (225) extends from the side wall of the anti-slip guide tube (224) to the periphery along the vertical direction of the central axis of the anti-slip guide tube (224) to form a ring shape. When the anti-slip guide tube (224) is connected to the channel (222), the flange plate (225) abuts against the end face of the main shaft (221).

10. The vehicle transmission according to claim 9, characterized in that: A through hole (226) is provided on the side wall of the anti-slip guide tube (224) for conveying lubricating oil into the through hole (322) of the sun gear (321).

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