Reducing mechanism and all-terrain vehicle adopting same

Abstract

The utility model discloses a speed reducing mechanism and an all-terrain vehicle adopting the speed reducing mechanism. The speed reducing mechanism comprises a shell, an output gear, an input gear and a rotating bearing, and the output gear is located in the shell and rotationally connected with the shell; the input gear is located in the shell, located above the output gear and meshed with the output gear. The rotating bearing is used for rotationally connecting the input gear and the shell; the speed reducing mechanism further comprises an oil accumulation groove structure which is located in the shell, the axis of the rotating bearing and the axis of the input gear basically coincide, at least part of the oil accumulation groove structure is arranged around the axis of the input gear, the oil accumulation groove structure is connected with the shell to form an oil accumulation space, and at least part of the rotating bearing is located in the oil accumulation space. The oil accumulation groove structure is provided with an oil storage groove, the oil storage groove communicates with the oil accumulation space, and the oil storage groove conveys lubricating oil to the rotating bearing in the oil accumulation space. Through the arrangement, the service life of the rotating bearing can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a deceleration mechanism and an all-terrain vehicle using the deceleration mechanism. Background Art

[0002] Currently, in vertically mounted reduction gear mechanisms, the top pinion and bottom gear are arranged vertically, with the top pinion positioned above the bottom gear. Due to cost and lightweight requirements, the gears, bearings, and other components in the reduction gear mechanism are lubricated and cooled using lubricant splashed from the gears. The specific operating principle is as follows: the bottom gear contacts the lubricating oil within the reduction gear housing. As the gear rotates, it stirs the oil, distributing it to a specific area, where it lubricates and cools the area. This area includes, for example, the location of the top pinion.

[0003] However, the bottom large gear has limited oil stirring capacity, so the bearings on one or both sides of the top small gear are difficult to be fully lubricated and cooled, which will increase the wear of the above bearings and cause the above bearings to overheat and fail, thereby reducing the service life of the above bearings. Utility Model Content

[0004] In order to address the deficiencies of the prior art, the present application aims to provide a reduction mechanism and an all-terrain vehicle using the reduction mechanism, wherein the service life of the rotary bearing of the reduction mechanism is longer.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] A reduction mechanism includes a housing, an output gear, an input gear and a rotating bearing, the output gear is located in the housing and is rotationally connected to the housing; the input gear is located in the housing, the input gear is located above the output gear and is meshed with the output gear; the rotating bearing is used for the rotational connection between the input gear and the housing; the reduction mechanism also includes an oil accumulation tank structure, the oil accumulation tank structure is located in the housing, the axis of the rotating bearing and the axis of the input gear basically coincide with each other, the oil accumulation tank structure is at least partially arranged around the axis of the input gear, the oil accumulation tank structure is connected to the housing and forms an oil accumulation space, the rotating bearing is at least partially located in the oil accumulation space, the oil accumulation tank structure is provided with an oil storage tank for collecting lubricating oil splashed from the output gear, the oil storage tank is connected to the oil accumulation space, and the oil storage tank transports the lubricating oil to the rotating bearing in the oil accumulation space.

[0007] Furthermore, the oil storage tank structure includes an arc section and a transport section connected to the arc section, the arc section is connected to the shell, the arc section at least partially extends upward to form a first baffle, the first baffle and the arc section form an oil storage tank, and the transport section connects the oil storage tank and the oil storage space.

[0008] Furthermore, a bearing mounting groove for mounting a rotating bearing is opened in the shell, the arc section is fitted to the outer edge of the bearing mounting groove, and the bottom of the bearing mounting groove is at least partially sunken away from the rotating bearing to form an accommodating space, and the bearing mounting groove, the accommodating space, and the arc section form an oil accumulation space.

[0009] Furthermore, the transport section extends substantially along the axial direction of the rotating bearing into the accommodation space, and the transport section transports the lubricating oil in the oil storage tank to the accommodation space to lubricate and cool the rotating bearing in the bearing mounting groove.

[0010] Furthermore, the oil accumulation tank structure also includes a turning section extending axially perpendicular to the rotating bearing, the turning section is connected to one end of the transport section away from the arc section, a transport gap is formed between the turning section and the shell, and the transport gap connects the transport section and the oil accumulation space.

[0011] Furthermore, the transport section at least partially extends upward to form a second baffle and a third baffle, the second baffle is located on the side of the transport section away from the rotating bearing, and the third baffle is located on the side of the transport section close to the rotating bearing, the second baffle, the third baffle and the transport section form a transport channel for transporting lubricating oil, and the transport channel connects the oil storage tank and the oil accumulation space.

[0012] Furthermore, the reduction mechanism also includes a transmission gear and a transmission bearing. The transmission gear is located between the input gear and the output gear. Both the input gear and the output gear are engaged with the transmission gear. The transmission gear is rotatably connected to the housing through the transmission bearing. The transmission bearing is located below the rotating bearing. An oil delivery channel is opened in the housing. The oil delivery channel is connected to the oil accumulation space and can deliver lubricating oil to the transmission bearing; the transmission gear is a double gear.

[0013] Furthermore, the arc segment at least partially extends downward to form a mounting segment, and the mounting segment is fixedly connected to the housing.

[0014] Furthermore, the input gear and the output gear are both helical gears, the input gear includes a first side and a second side distributed along its axial direction, the first side is the side of the output gear that can splash lubricating oil to the input gear, and the rotating bearing and the oil accumulation groove structure are located on the second side of the input gear.

[0015] To achieve the above objectives, this application adopts the following technical solutions:

[0016] An all-terrain vehicle includes a frame, a traveling system, a suspension assembly, and a powertrain, wherein the traveling system is at least partially located below the frame; the suspension assembly connects the traveling system to the frame; the powertrain is supported by the frame and is transmission-connected to the traveling system; the all-terrain vehicle also includes the above-mentioned reduction mechanism, which is transmission-connected to the powertrain and extends substantially along the height direction of the all-terrain vehicle.

[0017] The above-mentioned reduction mechanism and the all-terrain vehicle using the reduction mechanism can open an oil storage tank on the oil storage tank structure. The oil storage tank is used to collect the lubricating oil splashed by the output gear, and the oil storage tank is connected to the oil storage space, so that the oil storage tank can transport the lubricating oil to the rotating bearing in the oil storage space to achieve lubrication and cooling of the rotating bearing, thereby reducing the wear of the rotating bearing and avoiding overheating and failure of the rotating bearing, so as to increase the service life of the rotating bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the speed reduction mechanism provided in an embodiment of the present application.

[0019] Figure 2 A schematic diagram of the partial structure of the deceleration mechanism provided in an embodiment of the present application.

[0020] Figure 3 For the embodiment of this application Figure 1 Cross-sectional view at AA in the middle.

[0021] Figure 4 A schematic diagram of the oil accumulation tank structure of the reduction mechanism provided in an embodiment of the present application.

[0022] Figure 5 For the embodiment of this application Figure 1 Cross-sectional view at the middle BB.

[0023] Figure 6 A schematic structural diagram of an all-terrain vehicle using the deceleration mechanism provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation of the present application will be clearly and completely described below in conjunction with the drawings in the implementation of the present application.

[0025] It should be noted that the words "first", "second" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but rather indicate the presence of at least one. "Multiple" or "several" means at least two. Unless otherwise specified, words such as "front", "back", "left", "right", "bottom" and / or "top" are used for ease of description only and are not limited to one position or one spatial orientation. Words such as "include" or "comprising" and similar terms mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "connected" and similar terms are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

[0026] As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0027] like Figure 1 As shown, the present application provides a reduction mechanism 100, which is a longitudinal reducer. The reduction mechanism 100 includes a housing 11, an output gear 12, an input gear 13 and a rotating bearing 14. The housing 11 is used to support the output gear 12, the input gear 13 and the rotating bearing 14, and to protect the output gear 12, the input gear 13 and the rotating bearing 14. The output gear 12 is located in the housing 11 and is rotatably connected to the housing 11, so that the output gear 12 can rotate relative to the housing 11. The input gear 13 is located in the housing 11 and is rotatably connected to the housing 11. The input gear 13 is located above the output gear 12 and meshes with the output gear 12, so that the input gear 13 can transmit power to the output gear 12, thereby enabling the input gear 13 to drive the output gear 12 to rotate relative to the housing 11. The rotating bearing 14 is used for the rotational connection between the input gear 13 and the housing 11, so that the rotation of the input gear 13 and the housing 11 is more stable.

[0028] It should be noted that the housing 11 is filled with lubricating oil, which is used to lubricate and cool the output gear 12, input gear 13, and rotating bearing 14. This reduces wear on the output gear 12, input gear 13, and rotating bearing 14, and prevents overheating and failure of the output gear 12, input gear 13, and rotating bearing 14, thereby increasing the service life of the output gear 12, input gear 13, and rotating bearing 14. When the reduction gear 100 is not in operation, the output gear 12 is at least partially located below the level of the lubricating oil. More specifically, because the output gear 12 is below the input gear 13, when the reduction gear 100 is in operation, the output gear 12 splashes lubricating oil onto the input gear 13, allowing the lubricating oil to lubricate and cool the input gear 13, thereby reducing wear on the input gear 13 and preventing overheating and failure of the input gear 13.

[0029] like Figure 2 and Figure 3 As shown, as an implementation, the reduction mechanism 100 further includes an oil sump structure 15, which is located in and connected to the housing 11. The oil sump structure 15 can collect the lubricating oil splashed by the output gear 12 and deliver the lubricating oil to the rotating bearing 14.

[0030] Specifically, the axis of the rotating bearing 14 and the axis of the input gear 13 basically coincide with each other, and the oil storage tank structure 15 is at least partially arranged around the axis of the input gear 13, that is, the oil storage tank structure 15, the rotating bearing 14 and the input gear 13 are basically located at the same height, so there is no need to add additional conveying pipelines and other structures, and the lubricating oil can be conveyed to the rotating bearing 14 through the oil storage tank structure 15, which is conducive to improving the conveying efficiency of the oil storage tank structure 15 in conveying the lubricating oil to the rotating bearing 14.

[0031] In this embodiment, the oil sump structure 15 is connected to the housing 11 and defines an oil sump space 101. The rotating bearing 14 is at least partially located within the oil sump space 101. The oil sump structure 15 includes an oil reservoir 151 for collecting lubricating oil splashed from the output gear 12. The oil reservoir 151 is in communication with the oil sump space 101, enabling the oil reservoir 151 to deliver lubricating oil to the rotating bearing 14 within the oil sump space 101. This lubricates and cools the rotating bearing 14, thereby reducing wear on the rotating bearing 14 and preventing overheating and failure of the rotating bearing 14, thereby increasing the service life of the rotating bearing 14.

[0032] It should be noted that the input gear 13 is provided with rotating bearings 14 on both sides along its axial direction, that is, both ends of the input gear 13 are rotatably connected to the housing 11 through the rotating bearings 14. Specifically, the oil storage tank structure 15 of the present application can be provided only on one side of the input gear 13 along its axial direction, so as to achieve cooling and lubrication of one of the rotating bearings 14. Alternatively, the oil storage tank structure 15 of the present application can be provided with two, and the two oil storage tank structures 15 are respectively located on both sides of the input gear 13 along its axial direction, so as to achieve cooling and lubrication of the two rotating bearings 14. In this regard, the present application does not impose any restrictions, and it is only necessary to ensure that the rotating bearing 14 can be fully lubricated and cooled.

[0033] It should be noted that when the oil reservoir structure 15 of the present application cools and lubricates only one of the rotating bearings 14, both the input gear 13 and the output gear 12 are helical gears. Because the output gear 12, which is a helical gear, splashes lubricating oil onto one side of the input gear 13 along its axial direction, the rotating bearing 14 on the other side of the input gear 13 requires cooling and lubrication by the oil reservoir structure 15 to meet the cooling and lubrication needs of the rotating bearing 14 on the other side of the input gear 13.

[0034] More specifically, when the input gear 13 and the output gear 12 are both helical gears, the input gear 13 includes a first side and a second side distributed along its axial direction. The first side is a side on which the output gear 12 can splash lubricating oil to the input gear 13. The rotating bearing 14 and the oil accumulation groove structure 15 are located on the second side of the input gear 13, so that the rotating bearing 14, which is difficult to lubricate and cool by the splashing lubricating oil, can be lubricated and cooled by the oil accumulation groove structure 15, thereby improving the service life of the rotating bearing 14.

[0035] like Figure 3 and Figure 4 As shown, as an implementation, the oil storage tank structure 15 includes an arcuate section 1511 and a transport section 1521. The arcuate section 1511 is connected to the housing 11, and the transport section 1521 is connected to the arcuate section 1511. The arcuate section 1511 at least partially extends upward to form a first baffle 1512. The first baffle 1512 and the arcuate section 1511 form an oil storage tank 151. The transport section 1521 connects the oil storage tank 151 and the oil storage space 101, so that lubricating oil can be collected by the oil storage tank 151 and then transported to the oil storage space 101 through the oil storage tank 151 and the transport section 1521, thereby achieving lubrication and cooling of the rotating bearing 14.

[0036] Specifically, the first baffle 1512 is located on the side of the arc segment 1511 close to the input gear 13 to prevent the lubricating oil from flowing back from the side of the arc segment 1511 close to the input gear 13 to the bottom of the housing 11, thereby facilitating the collection of the lubricating oil by the oil storage tank 151, and further allowing the lubricating oil in the oil storage tank 151 to fully cool and lubricate the rotating bearing 14.

[0037] The height of the first baffle 1512 can be adjusted according to actual needs, as long as the first baffle 1512 does not block the splashing lubricating oil from being transported to the oil storage tank 151 and can prevent the lubricating oil from leaking to the shell 11.

[0038] It should be noted that the present application may not set the first baffle 1512 , that is, the present application does not limit whether to set the first baffle 1512 and the height of the first baffle 1512 .

[0039] like Figure 4 and Figure 5 As shown, in this embodiment, a bearing mounting groove 111 is defined within the housing 11 for mounting the rotating bearing 14. The arcuate segment 1511 fits against the outer edge of the bearing mounting groove 111, thereby being located on the side of the rotating bearing 14 that is closer to the input gear 13. The axis of the arcuate segment 1511 substantially coincides with the axis of the input gear 13, ensuring that the arcuate segment 1511 does not interfere with the operation of the rotating bearing 14.

[0040] More specifically, the bottom of the bearing mounting groove 111 is at least partially recessed inward, away from the rotating bearing 14, to form an accommodation space 1111. The bearing mounting groove 111, the accommodation space 1111, and the arcuate segment 1511 form the oil accumulation space 101. The accommodation space 1111 can increase the volume of the oil accumulation space 101, allowing the oil accumulation space 101 to store more lubricating oil, thereby meeting the cooling and lubrication requirements of the rotating bearing 14.

[0041] As an implementation method, the transport section 1521 basically extends along the axial direction of the rotating bearing 14 to the accommodating space 1111, so that the transport section 1521 can transport the lubricating oil in the oil storage tank 151 to the accommodating space 1111 to lubricate and cool the rotating bearing 14 in the bearing mounting groove 111.

[0042] It should be noted that two transport sections 1521 can be provided, with the two transport sections 1521 being located at either end of the arcuate section 1511, thereby enabling the lubricating oil to be transported to the storage space 1111 via the two transport sections 1521, thereby improving the efficiency of lubricating oil transportation. Furthermore, since the arcuate section 1511 extends substantially along a curved surface, the lubricating oil will flow along the arcuate section 1511 within the oil storage tank 151, i.e., the lubricating oil will flow out from both ends of the arcuate section 1511. By providing two transport sections 1521, the present application prevents the lubricating oil from flowing out of the oil storage tank 151 from either end of the arcuate section 1511, thereby improving the utilization rate of the lubricating oil and thereby increasing the amount of lubricating oil stored within the oil storage space 101.

[0043] It should be noted that, under the condition that the lubrication and cooling requirements of the rotating bearing 14 are met, only one transport section 1521 may be provided, and this application does not impose any limitation thereto.

[0044] Specifically, transport section 1521 at least partially extends upward to form a second baffle 1522 and a third baffle 1523. Second baffle 1522 is located on a side of transport section 1521 away from rotating bearing 14, while third baffle 1523 is located on a side of transport section 1521 closer to rotating bearing 14. Second baffle 1522, third baffle 1523, and transport section 1521 form a transport channel 152 for transporting lubricating oil. Transport channel 152 connects oil reservoir 151 and oil accumulation space 101. Second baffle 1522 and third baffle 1523 are used to prevent lubricating oil from leaking from transport section 1521 into housing 11, thereby facilitating the collection of lubricating oil.

[0045] In this embodiment, the height of the second baffle 1522 and the third baffle 1523 can be adjusted according to the structure of the shell 11. It is only necessary to ensure that the second baffle 1522 and the third baffle 1523 can prevent the leakage of lubricating oil and will not interfere with the normal operation of the rotating bearing 14.

[0046] As an implementation method, the oil accumulation tank structure 15 also includes a turning section 153, which extends in an axial direction perpendicular to the rotating bearing 14. The turning section 153 is connected to the end of the transport section 1521 away from the arc section 1511, so that the turning section 153 can transport the lubricating oil transported by the transport section 1521 in an axial direction perpendicular to the rotating bearing 14 to the accommodating space 1111, thereby enabling the lubricating oil to be better transported to the accommodating space 1111.

[0047] Specifically, a transport gap 1531 is formed between the turning section 153 and the housing 11 (see Figure 3), the transport interval 1531 connects the transport section 1521 and the oil accumulation space 101, so that the lubricating oil can enter the transport interval 1531 after passing through the transport channel 152, and then be transported from the transport interval 1531 to the oil accumulation space 101.

[0048] In this embodiment, the turning section 153 may be connected to or integrally formed with the third baffle 1523 , and the turning section 153 substantially extends along a plane perpendicular to the axial direction of the input gear 13 .

[0049] It should be noted that, as an optional implementation, the arc segment 1511 , the first baffle 1512 , the transport segment 1521 , the second baffle 1522 , the third baffle 1523 , and the turning segment 153 are integrally formed.

[0050] like Figure 5 As shown, as an implementation method, the reduction mechanism 100 also includes a transmission gear 16 and a transmission bearing 17. The transmission gear 16 is rotatably connected to the housing 11 through the transmission bearing 17. The transmission gear 16 is located between the input gear 13 and the output gear 12. The input gear 13 and the output gear 12 are both engaged with the transmission gear 16, so that the input gear 13 and the output gear 12 can be transmitted through the transmission gear 16.

[0051] Specifically, the transmission bearing 17 is located below the rotary bearing 14. An oil delivery channel 112 is defined within the housing 11. The oil delivery channel 112 communicates with the oil accumulation space 101 and is capable of delivering lubricating oil to the transmission bearing 17. The oil delivery channel 112 includes a first communication end 1121 communicating with the oil accumulation space 101 and a second communication end 1122 communicating with the first communication end 1121. The opening of the second communication end 1122 faces the transmission bearing 17, allowing the lubricating oil in the oil accumulation space 101 to be delivered to the transmission bearing 17 through the oil delivery channel 112, thereby lubricating and cooling the transmission bearing 17.

[0052] It should be noted that two transmission bearings 17 are also provided, one located at each axial end of the transmission gear 16. When two oil accumulating groove structures 15 are provided, two oil delivery channels 112 can also be provided, each communicating with one oil accumulating space 101, thereby enabling lubrication and cooling of both transmission bearings 17. When only one oil accumulating groove structure 15 is provided, only one oil delivery channel 112 is provided, enabling lubricating oil to be delivered to one of the transmission bearings 17.

[0053] In the present application, as an optional implementation, the transmission gear 16 is a duplex gear.

[0054] like Figure 3 and Figure 4As shown, as an implementation, when the arc segment 1511 is connected to the housing 11, in order to prevent the arc segment 1511 from interfering with the operation of other components, the arc segment 1511 of the present application at least partially extends downward to form a mounting segment 1511a, and the mounting segment 1511a is fixedly connected to the housing 11. The mounting segment 1511a and the housing 11 can be fixedly connected by bolts.

[0055] like Figure 6 As shown, as an implementation method, the present application also provides an all-terrain vehicle 200, which includes a frame 21, a walking system 22, a suspension assembly 23, a powertrain 24 and the above-mentioned deceleration mechanism 100.

[0056] In order to clearly illustrate the technical solution of this application, the following is also defined: Figure 6 In this application, the length direction of the all-terrain vehicle 200 refers to the front, rear, left, right, up, and down. Figure 6 The front-to-back direction in the all-terrain vehicle 200 refers to the width direction of the vehicle 200. Figure 6 The left and right directions in the text are as follows: the height direction of the all-terrain vehicle 200 refers to Figure 6 The up and down directions in .

[0057] The traveling system 22 is at least partially located below the vehicle frame 21, and the suspension assembly 23 connects the traveling system 22 to the vehicle frame 21. The powertrain 24 is supported by the vehicle frame 21 and is in transmission connection with the traveling system 22, so that power from the powertrain 24 can be transmitted to the traveling system 22. The reduction mechanism 100 is in transmission connection with the powertrain 24 and is capable of varying the power output of the powertrain 24.

[0058] In this embodiment, the deceleration mechanism 100 basically extends along the height direction of the all-terrain vehicle 200, that is, the deceleration mechanism 100 of the present application is arranged vertically.

[0059] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims appended to this application.

Claims

1. A speed reduction mechanism, comprising: case; an output gear, the output gear being located in the housing and being rotatably connected to the housing; an input gear, the input gear being located in the housing, the input gear being located above the output gear and meshing with the output gear; a rotary bearing, the rotary bearing being used for rotationally connecting the input gear and the housing; It is characterized in that The reduction mechanism also includes an oil accumulation tank structure, which is located in the housing. The axis of the rotating bearing and the axis of the input gear basically coincide with each other. The oil accumulation tank structure is at least partially arranged around the axis of the input gear. The oil accumulation tank structure is connected to the housing and forms an oil accumulation space. The rotating bearing is at least partially located in the oil accumulation space. The oil accumulation tank structure is provided with an oil storage tank for collecting lubricating oil splashed from the output gear. The oil storage tank is connected to the oil accumulation space and transports the lubricating oil to the rotating bearing in the oil accumulation space.

2. The speed reduction mechanism according to claim 1, characterized in that: The oil storage tank structure includes an arc segment and a transport segment connected to the arc segment, the arc segment is connected to the shell, the arc segment at least partially extends upward to form a first baffle, the first baffle and the arc segment form the oil storage tank, and the transport segment connects the oil storage tank and the oil storage space.

3. The speed reduction mechanism according to claim 2, characterized in that: A bearing mounting groove for mounting the rotating bearing is provided in the housing, the arc segment is fitted to the outer edge of the bearing mounting groove, the bottom of the bearing mounting groove is at least partially sunken away from the rotating bearing to form an accommodating space, and the bearing mounting groove, the accommodating space, and the arc segment form the oil accumulation space.

4. The speed reduction mechanism according to claim 3, characterized in that: The transport section basically extends into the accommodation space along the axial direction of the rotating bearing, and the transport section transports the lubricating oil in the oil storage tank to the accommodation space to lubricate and cool the rotating bearing in the bearing mounting groove.

5. The speed reduction mechanism according to any one of claims 2 to 4, characterized in that: The oil accumulation tank structure also includes a turning section extending axially perpendicular to the rotating bearing, the turning section is connected to an end of the transport section away from the arc section, a transport gap is formed between the turning section and the shell, and the transport gap connects the transport section and the oil accumulation space.

6. The speed reduction mechanism according to claim 5, characterized in that: The transport section at least partially extends upward to form a second baffle and a third baffle, the second baffle is located on the side of the transport section away from the rotating bearing, and the third baffle is located on the side of the transport section close to the rotating bearing, the second baffle, the third baffle and the transport section form a transport channel for transporting lubricating oil, and the transport channel connects the oil storage tank and the oil accumulation space.

7. The speed reduction mechanism according to claim 5, characterized in that: The reduction mechanism also includes a transmission gear and a transmission bearing. The transmission gear is located between the input gear and the output gear. The input gear and the output gear are both engaged with the transmission gear. The transmission gear is rotatably connected to the housing through the transmission bearing. The transmission bearing is located below the rotating bearing. An oil delivery channel is opened in the housing. The oil delivery channel is connected to the oil accumulation space and can deliver lubricating oil to the transmission bearing. The transmission gear is a double gear.

8. The speed reduction mechanism according to claim 5, characterized in that: The arc-shaped segment at least partially extends downward to form a mounting segment, and the mounting segment is fixedly connected to the housing.

9. The speed reduction mechanism according to claim 5, characterized in that: The input gear and the output gear are both helical gears. The input gear includes a first side and a second side distributed along its axial direction. The first side is a side of the output gear that can splash lubricating oil to the input gear. The rotating bearing and the oil accumulation groove structure are located on the second side of the input gear.

10. An all-terrain vehicle comprising: Frame; a traveling system, the traveling system being at least partially located below the vehicle frame; a suspension assembly connecting the travel system to the vehicle frame; A power assembly, the power assembly being supported by the vehicle frame and being in transmission connection with the traveling system; It is characterized in that The all-terrain vehicle further comprises a reduction mechanism according to any one of claims 1 to 9, wherein the reduction mechanism is in transmission connection with the power assembly and extends substantially along a height direction of the all-terrain vehicle.

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