Transmission and vehicle

Abstract

The invention belongs to the technical field of vehicles, and discloses a transmission and a vehicle. The transmission comprises a shell, a plurality of gears, an oil blocking cover and an oil pipe, the gears comprise the first gear, the oil pipe is connected to the side wall of the shell, the oil blocking cover is connected to the side wall of the shell and / or the oil pipe, the oil blocking cover is arranged on the periphery of the side, close to the bottom of the shell, of the first gear, and the oil blocking cover and the first gear are arranged at intervals. The oil pipe is used for spraying lubricating oil to the gears, and the oil blocking cover is provided with oil inlet holes. The oil pipe of the transmission is used for actively lubricating the gears and improving the lubricating effect, the oil baffle cover is arranged at the first gear, the oil inlet hole is formed in the oil baffle cover, lubricating oil in the shell enters the oil baffle cover through the oil inlet hole, and therefore when the first gear rotates, only part of the lubricating oil is stirred in the oil baffle cover, and the lubricating effect is improved. The oil stirring amount of the first gear is reduced, the heat power loss amount of the transmission is reduced, the working efficiency of the transmission is improved, and the service life of the transmission and lubricating oil is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly to a transmission and a vehicle. Background Art

[0002] A transmission is a transmission mechanism that uses transmission components such as gears to transmit power. Among them, the transmission components of the transmission need good lubrication, and the vast majority of transmission components use oil lubrication, and its lubrication method is mostly immersion lubrication. Taking gears as an example, immersion lubrication is to immerse a part of the gear in lubricating oil. When the gear rotates, the lubricating oil adhering to it is brought to the meshing area for lubrication, so that an oil film is formed between the meshing tooth surfaces of the two gears, thereby reducing friction and increasing the service life of the gear; at the same time, the frictional heat is also brought into the oil sump to eliminate the frictional heat generated when the gear transmits power, and then the temperature of the lubricating oil in the oil sump rises; when the gear rotates, it also stirs the lubricating oil in the oil sump, that is, the gear does a certain amount of work on the lubricating oil in the oil sump, thereby further increasing the temperature of the lubricating oil in the oil sump; at the same time, the lubricating oil in the oil sump is thrown onto the inner wall of the transmission housing, and heat dissipation is achieved through the inner wall.

[0003] When using immersion lubrication, there should be enough lubricating oil in the transmission housing to ensure the lubrication needs. However, the deeper the gear is immersed in the lubricating oil, the greater the degree of stirring of the lubricating oil by the gear during rotation, that is, the more work the gear does on the lubricating oil, and then the higher the temperature of the lubricating oil rises. That is to say, the lower the thermal power of the transmission is, and it will also cause the deterioration of the lubricating oil, affecting the service life of the transmission; and the lubricating oil will also increase the resistance of the transmission system, reducing the working efficiency of the transmission.

[0004] Therefore, a transmission and a vehicle are needed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a transmission and a vehicle. The transmission can actively lubricate the gears to ensure the lubrication needs of the gears, and by setting an oil baffle, the amount of oil stirred by the gears can be reduced, thereby reducing the heat power loss, improving the working efficiency of the transmission, and extending the service life of the transmission.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A transmission, the transmission includes:

[0008] A housing;

[0009] A plurality of gears, a plurality of the gears are all rotatably arranged in the housing, and a plurality of the gears include a first gear, and the pitch circle diameter of the first gear is closer to the bottom of the housing than the pitch circle diameters of the other gears;

[0010] An oil baffle and a tubing. The tubing is connected to the side wall of the housing. The oil baffle is connected to the side wall of the housing and / or the tubing, and the oil baffle is disposed on the outer periphery of the first gear on the side close to the bottom of the housing, and the oil baffle and the first gear are spaced apart. The tubing is used to spray lubricating oil onto several of the gears, and the oil baffle has an oil inlet hole.

[0011] As an alternative technical solution, the oil baffle includes an oil baffle body and a connecting member connected to each other. The oil inlet hole is opened in the oil baffle body, and the connecting member is used to connect to the side wall of the housing and / or the tubing.

[0012] As an alternative technical solution, the connecting member includes a first connecting member and a second connecting member. The first connecting member and the second connecting member are respectively disposed on both sides of the oil baffle body along its width direction. The first connecting member is used to connect to the side wall of the housing, and the second connecting member is used to connect to the tubing.

[0013] As an alternative technical solution, a first connection hole is provided on the first connecting member, a butting piece is provided on the tubing, a first fixing hole is provided on the butting piece, and a second fixing hole is provided on the side wall of the housing. The tubing passes through the first connection hole, and a fixing member sequentially passes through the first fixing hole and the second fixing hole to connect the tubing to the side wall of the housing and clamp the first connecting member between the side wall of the housing and the butting piece.

[0014] As an alternative technical solution, the fixing member is a bolt, the first fixing hole is a through hole, the second fixing hole is a threaded hole, and the bolt passes through the first fixing hole and then is threadedly connected to the second fixing hole to connect the tubing to the side wall of the housing and clamp the first connecting member between the side wall of the housing and the butting piece.

[0015] As an alternative technical solution, a second connection hole is provided on the second connecting member, and the tubing passes through the second connection hole to limit the second connecting member.

[0016] As an alternative technical solution, the connecting member includes two third connecting members. The two third connecting members are respectively disposed on both sides of the oil baffle body along the width direction, and the two third connecting members are respectively connected to the tubing through corresponding locking members.

[0017] As an alternative technical solution, a third connection hole is provided on the third connection member, and an abutting plate is provided on the oil pipe. The oil pipes on both sides of the abutting plate are provided with external thread portions. The oil pipe passes through the third connection hole so that the third connection member abuts against the abutting plate. The locking members are two nuts. One nut abuts against the side of the abutting plate away from the third connection member and is threadedly connected to the corresponding external thread portion. The other nut abuts against the side of the third connection member away from the abutting plate and is threadedly connected to the corresponding external thread portion, so as to connect the third connection member and the oil pipe.

[0018] As an alternative technical solution, at least two first connection members are provided, and at least two first connection members are arranged at intervals; and / or, at least two second connection members are provided, and at least two second connection members are arranged at intervals; and / or, at least two third connection members are provided on one side of the oil hood body, and at least two third connection members are arranged at intervals.

[0019] As an alternative technical solution, the oil hood body includes an arc-shaped member and two arc-shaped baffles. The two arc-shaped baffles are respectively arranged on both sides of the arc-shaped member in the width direction to form a receiving space for receiving lubricating oil. The oil inlet hole is provided on the arc-shaped member, and the connection member is connected to the baffle.

[0020] As an alternative technical solution, a plurality of oil inlet holes are provided, and the plurality of oil inlet holes are evenly distributed on the arc-shaped member.

[0021] As an alternative technical solution, an oil injection hole is provided on the oil pipe, and the oil injection hole faces the gear.

[0022] As an alternative technical solution, a plurality of oil injection holes corresponding to one gear are provided, and the plurality of oil injection holes are arranged at intervals along the extending direction of the oil pipe.

[0023] The present invention also adopts the following technical solutions:

[0024] A vehicle, the vehicle includes the transmission as described above.

[0025] The beneficial effects of the present invention:

[0026] The present invention provides a transmission, which includes a housing, a plurality of gears, an oil baffle and an oil pipe. The plurality of gears are all rotatably arranged in the housing. The plurality of gears include a first gear. The pitch circle diameter of the first gear is closer to the bottom of the housing than those of the other gears. The oil pipe is connected to the side wall of the housing. The oil baffle is connected to the side wall of the housing and / or the oil pipe. The oil baffle is arranged on the outer periphery of the side of the first gear close to the bottom of the housing. The oil baffle and the first gear are arranged at an interval. The oil pipe is used to spray lubricating oil onto the plurality of gears. The oil baffle has an oil inlet hole. The oil pipe of this transmission is used to spray lubricating oil onto the plurality of gears for active lubrication of the gears, improving the lubrication effect of the plurality of gears, and thus ensuring the use function of the transmission. And an oil baffle is provided at the first gear where the pitch circle diameter is closest to the bottom of the housing, and the oil baffle is provided with an oil inlet hole, which can enable the lubricating oil in the housing to enter the oil baffle. Then, only a part of the lubricating oil in the oil baffle is agitated when the first gear rotates, which can reduce the amount of agitated oil of the first gear, reduce the heat power dissipation of the transmission, improve the working efficiency of the transmission, and extend the service life of the transmission and the lubricating oil.

[0027] The present invention also discloses a vehicle, which includes the above-mentioned transmission. By providing the above-mentioned transmission, this vehicle can improve the working efficiency of the vehicle by ensuring the service life and working efficiency of the transmission, and can also extend the service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a front view of a partial structure of the gearbox according to an embodiment of the present invention;

[0029] Figure 2 is a side view of a partial structure of the gearbox according to an embodiment of the present invention;

[0030] Figure 3 is a bottom view of a partial structure of the gearbox according to an embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of the oil baffle according to an embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of the oil pipe according to an embodiment of the present invention.

[0033] In the figure:

[0034] 10. Housing; 11. Bolt;

[0035] 21. First gear;

[0036] 30. Oil baffle; 31. Oil baffle body; 311. Arc-shaped part; 3111. Oil inlet hole; 312. Arc-shaped baffle; 321. First connecting piece; 3211. First connecting hole; 322. Second connecting piece; 3221. Second connecting hole; 323. Support plate;

[0037] 40. Oil pipe; 41. Contact piece; 411. First fixing hole; 42. Oil injection hole. Detailed implementation mode

[0038] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0039] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0041] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] Embodiment 1

[0043] As Figures 1 to 5As shown, in this embodiment, a transmission is provided. The transmission includes a housing 10, a plurality of gears, an oil baffle 30, and an oil pipe 40. The plurality of gears are all rotatably arranged in the housing 10. The plurality of gears include a first gear 21, and the pitch circle diameter of the first gear 21 is closer to the bottom of the housing 10 than the pitch circle diameters of other gears. The oil pipe 40 is connected to the side wall of the housing 10, and the oil baffle 30 is connected to the side wall of the housing 10 and / or the oil pipe 40. The oil baffle 30 is arranged on the outer periphery of the side of the first gear 21 close to the bottom of the housing 10, and the oil baffle 30 and the first gear 21 are arranged at intervals. The oil pipe 40 is used to spray lubricating oil onto the plurality of gears, and the oil baffle 30 has an oil inlet hole 3111.

[0044] Specifically, in this embodiment, the oil pipe 40 is connected to the housing 10 and is communicated with an external oil supply device, and can spray lubricating oil onto the plurality of gears in the housing 10, so that this transmission can actively lubricate the gears, improving the lubrication effect of the gears and ensuring the normal lubrication requirements of the gears. The plurality of gears in this embodiment are coaxially arranged. The first gear 21 is the gear with the pitch circle diameter closest to the bottom of the housing 10 among all the gears. An oil baffle 30 is arranged on the outer periphery of the side of the first gear 21 close to the bottom of the housing 10. The oil baffle 30 is provided with an oil inlet hole 3111. The lubricating oil sprayed onto the gears through the oil pipe 40 will accumulate at the bottom of the housing 10. The lubricating oil at the bottom of the housing 10 will enter the oil baffle 30 through the oil inlet hole 3111 of the oil baffle 30. The rotation of the first gear 21 will stir the lubricating oil in the oil baffle 30. Compared with stirring all the lubricating oil in the housing 10, this setting can significantly reduce the amount of oil stirred by the first gear 21, thereby reducing the adverse effects such as low thermal power and deteriorated lubricating oil caused by excessive oil stirring amount. It can not only improve the working efficiency of the transmission, but also extend the service life of the lubricating oil and the transmission.

[0045] Further, as Figure 4 shown, the oil baffle 30 includes an oil baffle body 31 and a connecting member connected to each other. The oil inlet hole 3111 is opened in the body, and the connecting member is used to connect to the side wall of the housing 10 and / or the oil pipe 40. Specifically, in this embodiment, the first gear 21 is closest to the side wall of the housing 10 where the oil pipe 40 is installed, so that the oil baffle 30 is installed on the side wall of the housing 10 and the oil pipe 40. The connecting member is connected to both the side wall of the housing 10 and the oil pipe 40, thereby improving the installation stability of the oil baffle 30.

[0046] Further, as Figure 4As shown, the connecting member includes a first connecting member 321 and a second connecting member 322. The first connecting member 321 and the second connecting member 322 are respectively arranged on both sides of the oil hood body 31 along its width direction. The first connecting member 321 is used to connect to the side wall of the housing 10, and the second connecting member 322 is used to connect to the oil pipe 40. Specifically, in this embodiment, the first connecting member 321 and the second connecting member 322 are spaced apart on both sides of the oil hood body 31 along its width direction. The first connecting member 321 is used to connect to the side wall of the housing 10, and the second connecting member 322 is used to connect to the oil pipe 40, which can improve the connection stability of the oil baffle 30 and can also avoid affecting the normal rotation of the first gear 21, ensuring the service performance of the transmission.

[0047] Further, as Figure 4 shown, a first connection hole 3211 is provided on the first connecting member 321, a contact piece 41 is provided on the oil pipe 40, a first fixing hole 411 is provided on the contact piece 41, and a second fixing hole is provided on the side wall of the housing 10. The oil pipe 40 passes through the first connection hole 3211, and the fixing member sequentially passes through the first fixing hole 411 and the second fixing hole to connect the oil pipe 40 to the side wall of the housing 10 and clamp the first connecting member 321 between the side wall of the housing 10 and the contact piece 41. Specifically, in this embodiment, when the fixing member passes through the first fixing hole 411 and the second fixing hole, it can not only connect the oil pipe 40 to the side wall of the housing 10, but also clamp the first connecting member 321 between the side wall of the housing 10 and the contact piece 41, thereby improving the stability of the oil hood body 31 connected to the first connecting member 321, and further ensuring a stable relative position between the first gear 21 and the oil baffle 30, ensuring the normal function of the transmission.

[0048] Further, as Figure 1 、 Figure 2 and Figure 4 shown, the fixing member is a bolt 11, the first fixing hole 411 is a through hole, the second fixing hole is a threaded hole, and the bolt 11 passes through the first fixing hole 411 and is threadedly connected to the second fixing hole to connect the oil pipe 40 to the side wall of the housing 10 and clamp the first connecting member 321 between the side wall of the housing 10 and the contact piece 41. Specifically, in this embodiment, the oil baffle 30 can be fixed through the oil pipe 40 and the inherent bolt 11 that connects the oil pipe 40 to the side wall of the housing 10, reducing the setting of additional installation structures. This can not only reduce costs, but also be beneficial to the lightweight design of the transmission itself, and at the same time reduce the risk of adverse effects on the transmission caused by additional installation structures.

[0049] Further, as Figure 2 and Figure 4As shown in the figure, a second connection hole 3221 is provided on the second connector 322, and the oil pipe 40 passes through the second connection hole 3221 to limit the second connector 322. Specifically, in this embodiment, since the oil pipe 40 needs to spray lubricating oil on the gear, when the extending direction of the oil pipe 40 is parallel to the axis direction of the gear, the spraying effect is better. Therefore, the oil pipe 40 itself is fixed on the side wall of the housing 10, and then the second connection hole 3221 of the second connector 322 is sleeved on the oil pipe 40, which can effectively prevent the oil baffle 30 from tilting, etc., ensuring the stability of the relative position between the oil baffle 30 and the first gear 21, and further ensuring the oil blocking function of the oil baffle 30 and ensuring a small amount of oil agitation of the first gear 21.

[0050] Furthermore, there are at least two first connectors 321, and the at least two first connectors 321 are spaced apart; and / or, there are at least two second connectors 322, and the at least two second connectors 322 are spaced apart. Specifically, in this embodiment, there are two first connectors 321 and two second connectors 322 respectively. The two first connectors 321 are spaced at both ends in the extending direction of the oil baffle 30, and the two second connectors 322 are spaced at both ends in the extending direction of the oil baffle 30. This setting can not only facilitate the correspondence of the positions of the oil baffle 30 and the first gear 21, but also improve the installation stability of the oil baffle 30.

[0051] Furthermore, as Figure 4 shown, the oil baffle body 31 includes an arc-shaped member 311 and two arc-shaped baffles 312. The two arc-shaped baffles 312 are respectively arranged on both sides of the arc-shaped member 311 in the width direction to form an accommodation space for accommodating lubricating oil. The oil inlet hole 3111 is provided on the arc-shaped member 311, and the connector is connected to the baffle. Specifically, in this embodiment, the radian of the arc-shaped member 311 is correspondingly set with the addendum circle of the first gear 21, so that the arc-shaped member 311 and the addendum circle of the first gear 21 are equidistantly arranged. This setting can reduce the oil storage amount in the accommodation space, avoid interference, and improve safety during use. The oil inlet hole 3111 is provided on the arc-shaped member 311 and is close to the bottom of the housing 10, which can improve the smoothness of the lubricating oil entering the accommodation space; the connector is connected to the baffle, which can ensure that the position of the connector is relatively far from the arc-shaped member 311, thereby reducing the possibility of contact between the oil baffle 30 and the first gear 21.

[0052] Specifically, in this embodiment, as Figure 4 shown, a support plate 323 is further provided between the connector and the arc-shaped baffle 312. The setting of the support plate 323 can ensure that there is enough space between the first gear 21 and the oil baffle 30, thereby ensuring the normal rotation function of the first gear 21. The specific structure and shape of the support plate 323 can be specifically set according to actual use and are not limited here.

[0053] Specifically, in this embodiment, the oil baffle 30 is an integrally formed part, which is formed by pressing the arc and bending the sheet metal, and no specific limitation is made here.

[0054] In other embodiments, the oil baffle 30 can also be processed by sub-components first, and then several sub-components are welded together to form the above-mentioned oil baffle 30 by welding, and no specific description is made here.

[0055] Furthermore, as Figure 5 shown, a plurality of oil inlet holes 3111 are provided, and the plurality of oil inlet holes 3111 are evenly distributed on the arc-shaped member 311. Specifically, in this embodiment, the oil inlet holes 3111 are arranged in a rectangular shape, and the number of the oil inlet holes 3111 is three. The three oil inlet holes 3111 are arranged at intervals along the extending direction of the arc-shaped member 311. This arrangement can improve the efficiency of the lubricating oil at the bottom of the housing 10 entering the accommodation space, and thus improve the use effect.

[0056] In another embodiment, the shape of the oil inlet holes 3111 can be specifically set according to actual use, for example: circular or polygonal, etc., and no limitation is made here. The number of the oil inlet holes 3111 can also be specifically set according to actual use, for example: four, five, or even more, and no limitation is made here.

[0057] Furthermore, as Figure 5 shown, the oil pipe 40 is provided with oil injection holes 42, and the oil injection holes 42 are oriented towards the gears. Specifically, in this embodiment, a plurality of groups of oil injection holes 42 are provided on the oil pipe 40, and each group of oil injection holes 42 corresponds to one gear and is oriented towards the gear, which can improve the lubrication effect on the gears and ensure the normal function of the transmission.

[0058] Furthermore, as Figure 5 shown, a plurality of oil injection holes 42 corresponding to one gear are provided, and the plurality of oil injection holes 42 are arranged at intervals along the extending direction of the oil pipe 40. Specifically, in this embodiment, three oil injection holes 42 corresponding to one gear are provided, and the three oil injection holes 42 are arranged at intervals along the extending direction of the oil pipe 40, which can enable the gears to be sprayed with lubricating oil along the axial direction, and thus improve the lubrication effect of the gears.

[0059] In another embodiment, the number of the oil injection holes 42 corresponding to one gear can be specifically set according to actual use, and the oil injection holes 42 corresponding to one gear can also be arranged in a multi-row and multi-column arrangement, and no limitation is made here.

[0060] In this embodiment, a vehicle is further provided, and the vehicle includes the above-mentioned transmission. By providing the above-mentioned transmission, this vehicle can improve the working efficiency of the vehicle by ensuring the service life and working efficiency of the transmission, and can also extend the service life of the vehicle.

[0061] Embodiment 2

[0062] In this embodiment, a transmission is provided, and the difference between this transmission and the transmission in Embodiment 1 lies in the installation method of the oil baffle 30.

[0063] Specifically, in this embodiment, the connecting member includes two third connecting members, and the two third connecting members are respectively arranged on both sides of the oil baffle body 31 in the width direction. The two third connecting members are respectively connected to the oil pipe 40 through corresponding locking members. Specifically, in this embodiment, when the first gear 21 is located at a position far from the side wall of the housing 10, the two third connecting members are respectively connected to two positions of the oil pipe 40 through the locking members, and thus the installation stability of the oil baffle 30 can be ensured, and the service performance of the oil baffle 30 can be ensured.

[0064] Furthermore, a third connection hole is provided on the third connecting member, and an abutting plate is provided on the oil pipe 40. The oil pipe 40 on both sides of the abutting plate is provided with external thread portions. The oil pipe 40 passes through the third connection hole so that the third connecting member abuts against the abutting plate; the locking members are two nuts. One nut abuts against the side of the abutting plate away from the third connecting member and is threadedly connected to the corresponding external thread portion, and the other nut abuts against the side of the third connecting member away from the abutting plate and is threadedly connected to the corresponding external thread portion, so that the third connecting member is connected to the oil pipe 40. Specifically, in this embodiment, the oil pipe 40 is connected to the side wall of the housing 10 through a bolt 11 to ensure good stability of the oil pipe 40. During installation, the two nuts are respectively located on both sides of the third connecting member and the abutting plate, and both nuts are threadedly connected to the two corresponding external thread portions on the oil pipe 40, and thus the position of the third connecting member on the oil pipe 40 can be positioned, and thus it can be ensured that the oil baffle 30 can be arranged corresponding to the first gear 21, thereby effectively reducing the oil churning amount of the first gear 21 and improving the working efficiency of the transmission.

[0065] Furthermore, at least two third connecting members are provided on any one side of the oil baffle body 31, and the at least two third connecting members are arranged at intervals. Specifically, in this embodiment, two third connecting members are provided on any one side of the oil baffle body 31, and the two third connecting members are arranged at intervals at both ends in the extending direction of the oil baffle 30. This arrangement can not only facilitate the correspondence between the positions of the oil baffle 30 and the first gear 21, but also improve the installation stability of the oil baffle 30.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Transmission, characterized in that, The transmission includes: a housing (10); a plurality of gears, all of the plurality of gears are rotatably arranged in the housing (10), the plurality of gears include a first gear (21), and the pitch circle diameter of the first gear (21) is closer to the bottom of the housing (10) than the pitch circle diameters of the other gears; an oil baffle (30) and an oil pipe (40), the oil pipe (40) is connected to the side wall of the housing (10), the oil baffle (30) is connected to the side wall of the housing (10) and / or the oil pipe (40), and the oil baffle (30) is arranged on the outer periphery of the first gear (21) on the side close to the bottom of the housing (10), and the oil baffle (30) and the first gear (21) are arranged at intervals, the oil pipe (40) is used for spraying lubricating oil to the plurality of gears, and the oil baffle (30) has an oil inlet hole (3111).

2. The transmission according to claim 1, wherein The oil baffle (30) includes an oil baffle body (31) and a connecting member connected to each other, the oil inlet hole (3111) is opened in the oil baffle body (31), and the connecting member is used for connecting to the side wall of the housing (10) and / or the oil pipe (40).

3. The transmission according to claim 2, characterized in that, The connecting member includes a first connecting member (321) and a second connecting member (322), the first connecting member (321) and the second connecting member (322) are respectively arranged on both sides of the oil baffle body (31) along its own width direction, the first connecting member (321) is used for connecting to the side wall of the housing (10), and the second connecting member (322) is used for connecting to the oil pipe (40).

4. The transmission according to claim 3, wherein, A first connecting hole (3211) is provided on the first connecting member (321), a contact piece (41) is provided on the oil pipe (40), a first fixing hole (411) is provided on the contact piece (41), a second fixing hole is provided on the side wall of the housing (10), the oil pipe (40) passes through the first connecting hole (3211), and a fixing member sequentially passes through the first fixing hole (411) and the second fixing hole to connect the oil pipe (40) to the side wall of the housing (10) and clamp the first connecting member (321) between the side wall of the housing (10) and the contact piece (41).

5. The transmission according to claim 4, characterized in that, The fixing member is a bolt (11), the first fixing hole (411) is a through hole, the second fixing hole is a threaded hole, and the bolt (11) passes through the first fixing hole (411) and is threadedly connected to the second fixing hole to connect the oil pipe (40) to the side wall of the housing (10) and clamp the first connecting member (321) between the side wall of the housing (10) and the contact piece (41).

6. The transmission according to claim 4, characterized in that, A second connecting hole (3221) is provided on the second connecting member (322), and the oil pipe (40) passes through the second connecting hole (3221) to limit the second connecting member (322).

7. The transmission according to claim 3, characterized in that, The connecting member includes two third connecting members, which are respectively arranged on both sides of the oil cover body (31) in the width direction, and the two third connecting members are respectively connected to the oil pipe (40) through correspondingly arranged locking members.

8. The transmission according to claim 7, characterized in that, A third connection hole is provided on the third connecting member, and an abutting plate is provided on the oil pipe (40). The oil pipe (40) on both sides of the abutting plate is provided with external thread portions. The oil pipe (40) passes through the third connection hole so that the third connecting member and the abutting plate are in abutment; the locking members are two nuts. One nut abuts against the side of the abutting plate away from the third connecting member and is threadedly connected to the corresponding external thread portion, and the other nut abuts against the side of the third connecting member away from the abutting plate and is threadedly connected to the corresponding external thread portion, so that the third connecting member and the oil pipe (40) are connected.

9. The transmission according to claim 7, characterized in that, There are at least two first connecting members (321), and at least two first connecting members (321) are arranged at intervals; and / or, there are at least two second connecting members (322), and at least two second connecting members (322) are arranged at intervals; and / or, there are at least two third connecting members arranged on one side of the oil cover body (31), and at least two third connecting members are arranged at intervals.

10. The transmission according to any one of claims 2-9, characterized in that, The oil cover body (31) includes an arc-shaped member (311) and two arc-shaped baffles (312). The two arc-shaped baffles (312) are respectively arranged on both sides of the arc-shaped member (311) in the width direction to form an accommodation space for accommodating lubricating oil. The oil inlet hole (3111) is provided on the arc-shaped member (311), and the connecting member is connected to the baffle.

11. The transmission according to claim 10, characterized in that, There are multiple oil inlet holes (3111), and the multiple oil inlet holes (3111) are evenly distributed on the arc-shaped member (311).

12. The transmission according to claim 1, characterized in that, An oil injection hole (42) is provided on the oil pipe (40), and the oil injection hole (42) faces the gear.

13. The transmission according to claim 12, wherein There are multiple oil injection holes (42) corresponding to one gear, and the multiple oil injection holes (42) are arranged at intervals along the extension direction of the oil pipe (40).

14. A vehicle, characterized in that, The vehicle includes a transmission as described in any one of claims 1-13.

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