All-terrain vehicle

Abstract

The utility model discloses an all-terrain vehicle. The all-terrain vehicle comprises a vehicle frame, a walking system, a suspension system, a power assembly and a transmission assembly. The walking system comprises wheels, and each wheel comprises a rim, a tire and a mounting bracket; the suspension system transmission assembly comprises a transmission half shaft in transmission connection with the power assembly, and the transmission half shaft comprises a half shaft ball cage in transmission connection with the rim. A protruding part is at least partially formed on the installation support, the transmission assembly further comprises a transmission bearing arranged on the protruding part in a sleeving mode, the protruding part is rotationally connected with the axle support through the transmission bearing, and at least part of the half-axle ball cage penetrates through the protruding part and is fixedly connected with the installation support. A first plane and a second plane which are perpendicular to the width direction of the frame are defined, the first plane passes through the midpoint of the tread of the two wheels in the width direction, the second plane basically equally divides the transmission bearing, and the minimum distance between the first plane and the second plane in the width direction of the frame ranges from 0 mm to 10 mm. Through the arrangement, the service life of the transmission bearing can be prolonged.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an all-terrain vehicle. Background Technology

[0002] An all-terrain vehicle is a multi-functional vehicle designed specifically for various complex terrains. It can travel freely on terrains that are difficult for ordinary vehicles to traverse, such as beaches, riverbeds, forest roads, streams, and deserts.

[0003] All-terrain vehicles typically include body panels, a running gear system, a suspension system, a powertrain, a transmission assembly, and a fuel system. The running gear system includes wheel rims, tires, and mounting brackets fixed to the rims. The suspension system includes axle supports connecting the mounting brackets to the frame. The transmission assembly includes drive bearings. The mounting brackets and axle supports are rotatably connected via drive bearings. However, in existing technology, the distance between the plane containing the drive bearing and the plane containing the midpoint of the wheel track in the width direction is too large, resulting in excessive torque on the drive bearing and consequently reducing its lifespan. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide an all-terrain vehicle with a long service life of its transmission bearings.

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

[0006] An all-terrain vehicle includes a frame, a running gear, a suspension system, a powertrain, and a transmission assembly. The running gear is at least partially located below the frame and includes wheels, each wheel including a rim, a tire, and a mounting bracket. The tire is mounted on the rim, and the rim is mounted on the mounting bracket. The suspension system includes an axle support connecting the mounting bracket to the frame. The powertrain is supported by the frame. The transmission assembly includes a drive shaft driven through the powertrain, and the drive shaft includes a ball joint cage driven through the rim. The mounting bracket has at least a protrusion, and the transmission assembly also includes a drive bearing fitted onto the protrusion. The protrusion is rotatably connected to the axle support via the drive bearing, and the ball joint cage at least partially passes through the protrusion and is fixedly connected to the mounting bracket. A first plane and a second plane are defined perpendicular to the width direction of the frame. The first plane passes through the midpoint of the wheel track in the width directions of the two wheels, and the second plane substantially bisects the drive bearing. The minimum distance between the first plane and the second plane along the width direction of the frame ranges from 0 to 10 mm.

[0007] Furthermore, the minimum distance between the first plane and the second plane along the width direction of the frame ranges from 2mm to 8mm.

[0008] Furthermore, the wheel axle support has a receiving hole, and the protrusion is at least partially located in the receiving hole. The transmission bearing includes an inner ring and an outer ring. The inner ring is arranged around the protrusion and cooperates with the protrusion, and the outer ring is fixed in place with the inner wall of the receiving hole.

[0009] Furthermore, the wheel axle support is provided with a clearance hole communicating with the receiving hole. The inner diameter of the clearance hole gradually increases from the direction close to the receiving hole to the direction far away from the receiving hole. The half-shaft ball cage includes a ball cage portion, and the ball cage portion is at least partially located in the clearance hole.

[0010] Furthermore, the axis of the receiving hole is basically coincident with the axis of the rim.

[0011] Furthermore, the protrusion has an internal spline hole, and the rim has a mounting hole that communicates with the internal spline hole. The axes of the internal spline hole and the mounting hole are basically coincident with the axis of the rim. The half-shaft ball cage includes an external spline part and a fixing part. The external spline part is splined to the internal spline hole, and the fixing part passes through the mounting hole and is fixed by a connector.

[0012] Furthermore, the length of the outer spline portion along the axial direction of the rim ranges from 32 mm to 50 mm.

[0013] Furthermore, after the connector is connected to the fixing part, the connector is located in the mounting hole and at least partially abuts against the mounting bracket. The connector has a preload on the mounting bracket, which is configured to lock the half-shaft ball cage and the mounting bracket.

[0014] Furthermore, the fixing part is provided with external threads, the connecting part is a nut, and the fixing part passes through the mounting hole and is connected to the nut.

[0015] Furthermore, when viewed along the length of the frame, the wheel axle support and the tire essentially overlap.

[0016] The aforementioned all-terrain vehicle can reduce the bearing offset of the transmission bearing, which helps to reduce the torque borne by the transmission bearing and thus helps to improve the service life of the transmission bearing. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an all-terrain vehicle provided in an embodiment of this application.

[0018] Figure 2 A partial structural side view of an all-terrain vehicle provided in an embodiment of this application.

[0019] Figure 3 An exploded view of the running system, suspension system, and transmission components of an all-terrain vehicle provided in an embodiment of this application.

[0020] Figure 4 A cross-sectional view of the running system, suspension system, and transmission components of an all-terrain vehicle provided in an embodiment of this application.

[0021] Figure 5 Examples of this application Figure 4 A magnified view of a portion of point A in the middle. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2 As shown, this application provides an all-terrain vehicle 100, which includes a frame 11, a body panel 12, a running system 13, a suspension system 14, a powertrain 15, a transmission assembly 16, a fuel assembly 17, a seat assembly 19, and an electrical assembly 22.

[0024] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The directions shown are front, rear, left, right, top, and bottom. In this application, the length direction of the frame 11 refers to... Figure 1 In the fore-and-aft direction, the width direction of the frame 11 refers to... Figure 1 The left and right directions in the middle, and the height direction of frame 11 refers to Figure 1 The up and down directions in the middle.

[0025] The frame 11 serves as the basic framework of the all-terrain vehicle 100, supporting the body panel 12, running gear 13, suspension system 14, powertrain 15, transmission assembly 16, fuel system 17, seat assembly 19, and electrical assembly 22. The body panel 12 is at least partially located on and connected to the frame 11, protecting the internal components of the all-terrain vehicle 100. The running gear 13 is at least partially located below the frame 11, and the suspension system 14 connects the running gear 13 to the frame 11. The powertrain 15 is drive-connected to the running gear 13; specifically, the transmission assembly 16 drives the powertrain 15 to the running gear 13. The fuel system 17 includes a fuel tank 171 for powering the powertrain 15; specifically, the fuel tank 171 supplies fuel to the powertrain 15. The electrical component 22 is supported by the frame 11, and is also supported by the body panel 12 or the frame 11. The electrical component 22 is used to display the driving data of the all-terrain vehicle 100 and control the operation of the all-terrain vehicle. The seat assembly 19 is supported by the frame 11 and is used to support the driver and / or passengers.

[0026] like Figure 3 , Figure 4 and Figure 5As shown, in one embodiment, the running gear system 13 includes a wheel 131. The wheel 131 includes a rim 1311, a tire, and a mounting bracket 1312. The tire is mounted on the rim 1311, and the rim 1311 is mounted on the mounting bracket 1312. The suspension system 14 includes an axle support 141 connecting the mounting bracket 1312 to the frame 11. The transmission assembly 16 includes a drive shaft 164 that is driveably connected to the powertrain 15. The drive shaft 164 includes a half-shaft ball joint 1641 that is driveably connected to the rim 1311. The mounting bracket 1312 at least partially forms a protrusion 1312a. The transmission assembly 16 also includes a transmission bearing 165 sleeved on the protrusion 1312a. The protrusion 1312a and the axle support 141 are rotatably connected via the transmission bearing 165. The half-shaft ball joint 1641 at least partially passes through the protrusion 1312a and is fixedly connected to the mounting bracket 1312. This configuration eliminates the need for the axle bearing 1641 to be connected to the drive bearing 165, thus avoiding the need for assembly between the axle bearing 1641 and the drive bearing 165. This eliminates the need to machine a mating section on the axle bearing 1641 for connection with the drive bearing 165, allowing for a shorter size of the axle bearing 1641 and improving its structural compactness, thereby increasing space utilization. Furthermore, eliminating the need for a machining section on the axle bearing 1641 simplifies the manufacturing process and reduces production costs.

[0027] In this embodiment, a first plane 103 and a second plane 104 are defined perpendicular to the width direction of the frame 11. The first plane 103 passes through the midpoint of the wheelbase of the two wheels 131 in the width direction, and the second plane 104 substantially bisects the drive bearing 165. The minimum distance D1 between the first plane 103 and the second plane 104 along the width direction of the frame 11 ranges from 0 to 10 mm. Specifically, the minimum distance D1 between the first plane 103 and the second plane 104 along the width direction of the frame 11 ranges from 2 mm to 8 mm. More specifically, the minimum distance D1 between the first plane 103 and the second plane 104 along the width direction of the frame 11 ranges from 4 mm to 6 mm. This arrangement helps to avoid excessive torque on the drive bearing 165 when the minimum distance D1 between the first plane 103 and the second plane 104 along the width direction of the frame 11 is too large, thereby improving the service life of the drive bearing 165. Furthermore, the above arrangement helps to reduce the size of the half-shaft CV joint 1641, thereby improving the structural compactness of the half-shaft CV joint 1641. Furthermore, by reducing the size of the half-shaft ball cage 1641, it is beneficial to reduce the weight of the half-shaft ball cage 1641, so as to make the all-terrain vehicle 100 lighter.

[0028] In one embodiment, the wheel axle support 141 has a receiving hole 1411, and the protrusion 1312a is at least partially located in the receiving hole 1411. The transmission bearing 165 includes an inner ring and an outer ring. The inner ring is disposed around and mates with the protrusion 1312a, and the outer ring is fixedly fitted to the inner wall of the receiving hole 1411. This arrangement allows the wheel axle support 141 to be directly connected to the mounting bracket 1312 via the transmission bearing 165, thus eliminating the need for the half-shaft ball cage 1641 to be assembled with the wheel axle support 141, thereby simplifying the manufacturing process of the half-shaft ball cage 1641. Furthermore, through the above arrangement, the receiving hole 1411 provides installation space for the transmission bearing 165 and the protrusion 1312a, thereby further improving the structural compactness of the transmission bearing 165.

[0029] In one embodiment, the wheel axle support 141 has a clearance hole 1412 communicating with the receiving hole 1411. The inner diameter of the clearance hole 1412 gradually increases from the direction near the receiving hole 1411 to the direction away from the receiving hole 1411. The half-shaft ball cage 1641 includes a ball cage portion 1641a, which is at least partially located within the clearance hole 1412. This arrangement prevents interference between the ball cage portion 1641a and the wheel axle support 141, facilitating the rotation of the half-shaft ball cage 1641. Furthermore, by locating at least part of the ball cage portion 1641a within the clearance hole 1412, the structural compactness of the half-shaft ball cage 1641 and the wheel axle support 141 is further improved, thereby increasing the space utilization rate of the half-shaft ball cage 1641.

[0030] In one implementation, the axis of the receiving hole 1411 is substantially coincident with the axis of the wheel rim 1311. This arrangement avoids assembly deviations of the protrusion 1312a, the transmission bearing 165, and the receiving hole 1411, thereby improving the ease of assembly of the mounting bracket 1312, the transmission bearing 165, and the wheel axle support 141.

[0031] like Figure 3As shown, in one embodiment, the protrusion 1312a has an internal spline hole 1312b, and the rim 1311 has a mounting hole 1311a communicating with the internal spline hole 1312b. The axes of the internal spline hole 1312b and the mounting hole 1311a are substantially coincident with the axis of the rim 1311. Furthermore, the half-shaft ball cage 1641 includes an external spline portion 1641b and a fixing portion 1641c. The external spline portion 1641b is splinedly connected to the internal spline hole 1312b, and the fixing portion 1641c passes through the mounting hole 1311a and is fixed by a connector 1642. This configuration allows the half-shaft ball cage 1641 to drive the mounting bracket 1312 to rotate via the spline connection, thereby achieving the function of driving the wheel 131 to rotate. Furthermore, the cooperation between the connector 1642 and the fixing portion 1641c improves the transmission stability of the half-shaft ball cage 1641 and the mounting bracket 1312.

[0032] like Figure 5 As shown, in one embodiment, the length L of the outer spline portion 1641b along the axial direction of the rim 1311 ranges from 32mm to 50mm. Specifically, the length L of the outer spline portion 1641b along the axial direction of the rim 1311 ranges from 36mm to 45mm. More specifically, the length L of the outer spline portion 1641b along the axial direction of the rim 1311 is 41mm. This arrangement avoids the outer spline portion 1641b being too long along the axial direction of the rim 1311, which would result in an excessively large size of the axle bearing CV joint 1641, thus preventing the axle bearing CV joint 1641 from being too heavy. This, in turn, helps to improve the structural compactness of the axle bearing CV joint 1641 and makes the axle bearing CV joint 1641 lighter. Furthermore, this design avoids the situation where the length L of the outer spline portion 1641b along the axial direction of the rim 1311 is too short, which would reduce the transmission stability between the half-shaft ball cage 1641 and the protrusion 1312a, thereby improving the transmission stability between the transmission assembly 16 and the wheel 131. In this application, the half-shaft ball cage 1641 does not require machining of the mating section connecting to the transmission bearing 165, thus eliminating the need to reserve machining positions for the aforementioned mating section at the outer spline portion 1641b. This facilitates shortening the length of the outer spline portion 1641b, which in turn helps to shorten the overall size of the half-shaft ball cage 1641, improving the structural compactness of the half-shaft ball cage 1641 and making the half-shaft ball cage 1641 lighter.

[0033] In one embodiment, after the connector 1642 is connected to the fixing part 1641c, the connector 1642 is located within the mounting hole 1311a and at least partially abuts against the mounting bracket 1312. The connector 1642 has a preload force on the mounting bracket 1312, which is configured to lock the half-shaft ball cage 1641 and the mounting bracket 1312. This configuration can further improve the connection stability between the half-shaft ball cage 1641 and the mounting bracket 1312, thereby improving the transmission stability of the half-shaft ball cage 1641 and the mounting bracket 1312, and further improving the transmission stability between the transmission assembly 16 and the wheel 131.

[0034] As an optional implementation, the fixing part 1641c is provided with external threads, and the connecting part 1642 is a nut. The fixing part 1641c passes through the mounting hole 1311a and is connected to the nut. The engagement of the nut and the external thread secures the fixing part 1641c to the connecting part 1642, thereby improving the connection stability between the half-shaft CV joint 1641 and the wheel rim 1311. Furthermore, the nut and the fixing part 1641c also facilitate the disassembly and assembly of the half-shaft CV joint 1641 and the wheel rim 1311, thus facilitating the assembly of the wheel 131.

[0035] like Figure 4 As shown, in one embodiment, viewed from the length direction of the frame 11, the axle support 141 substantially overlaps with the tire. This arrangement allows the axle support 141 to be essentially located within the tire, thereby improving the structural compactness at the tire location and increasing space utilization. Furthermore, this arrangement allows the half-shaft ball cage 1641 to be positioned closer to the mounting bracket 1312, further reducing the minimum distance D1 between the first plane 103 and the second plane 104 along the width direction of the frame 11. This, in turn, further reduces the torque on the transmission bearing 165, thereby increasing the service life of the transmission bearing 165.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An all-terrain vehicle, comprising: Frame; A walking system, at least partially located below the frame and including wheels, each wheel including a rim, a tire, and a mounting bracket, the tire being mounted on the rim and the rim being mounted on the mounting bracket; A suspension system, the suspension system including wheel axle supports that connect the mounting bracket to the vehicle frame; The powertrain is supported by the vehicle frame; A transmission assembly, the transmission assembly including a drive half-shaft that is drive-connected to the powertrain, the drive half-shaft including a half-shaft ball cage that is drive-connected to the wheel rim; Its features are, The mounting bracket at least partially forms a protrusion, and the transmission assembly further includes a transmission bearing sleeved on the protrusion. The protrusion is rotatably connected to the wheel axle support through the transmission bearing. The half-shaft ball cage at least partially passes through the protrusion and is fixedly connected to the mounting bracket. A first plane and a second plane are defined perpendicular to the width direction of the frame. The first plane passes through the midpoint of the wheel track in the two wheel width directions, and the second plane substantially bisects the transmission bearing. The minimum distance between the first plane and the second plane along the width direction of the frame ranges from 0 to 10 mm.

2. The all-terrain vehicle according to claim 1, characterized in that, The minimum distance between the first plane and the second plane along the width direction of the vehicle frame ranges from 2 mm to 8 mm.

3. The all-terrain vehicle according to claim 1, characterized in that, The wheel axle support has a receiving hole, and the protrusion is at least partially located in the receiving hole. The transmission bearing includes an inner ring and an outer ring. The inner ring is arranged around the protrusion and cooperates with the protrusion. The outer ring is fixed to the inner wall of the receiving hole.

4. The all-terrain vehicle according to claim 3, characterized in that, The axle support has a clearance hole communicating with the receiving hole. The inner diameter of the clearance hole gradually increases from the direction close to the receiving hole to the direction away from the receiving hole. The half-shaft ball cage includes a ball cage portion, and the ball cage portion is at least partially located within the clearance hole.

5. The all-terrain vehicle according to claim 3, characterized in that, The axis of the receiving hole is substantially coincident with the axis of the wheel rim.

6. The all-terrain vehicle according to claim 1, characterized in that, The protrusion has an internal spline hole, and the rim has a mounting hole that communicates with the internal spline hole. The axes of the internal spline hole and the mounting hole are basically coincident with the axis of the rim. The half-shaft ball cage includes an external spline portion and a fixing portion. The external spline portion is splined to the internal spline hole, and the fixing portion passes through the mounting hole and is fixed by a connector.

7. The all-terrain vehicle according to claim 6, characterized in that, The length of the outer spline portion along the axial direction of the rim ranges from 32 mm to 50 mm.

8. The all-terrain vehicle according to claim 6, characterized in that, After the connector is connected to the fixing part, the connector is located in the mounting hole and at least partially abuts against the mounting bracket. The connector has a preload force on the mounting bracket, which is configured to lock the half-shaft ball cage and the mounting bracket.

9. The all-terrain vehicle according to claim 6, characterized in that, The fixing part is provided with external threads, the connecting part is a nut, and the fixing part passes through the mounting hole and is connected to the nut.

10. The all-terrain vehicle according to claim 1, characterized in that, Viewed from the length of the frame, the wheel axle support and the tire are substantially overlapping.

Images