All Terrain Vehicles

Abstract

The present application discloses an all-terrain vehicle, which includes a frame, a travel system, a power system and a suspension system. The power system is connected to the travel system by transmission; the suspension system connects the travel system to the frame, the suspension system includes a rocker mechanism and a rocker connection mechanism, the rocker mechanism and the frame are rotatably connected through the rocker connection mechanism, the rocker connection mechanism includes an inner bushing, a fastener, a bearing member, and a sealing assembly, the inner bushing is sleeved on the fastener and fixed to the frame through the fastener, the bearing member is sleeved on the inner bushing or on the fastener, the bearing member at least partially can rotate relative to the inner bushing, the sealing assembly is sleeved on the inner bushing and has an interference fit with the inner bushing, the sealing assembly can also be rotatably connected with the inner bushing, the rocker mechanism is sleeved on the sealing assembly and has an interference fit with the sealing assembly, the bearing member is located in the rocker mechanism, and the outer ring of the bearing member rotates synchronously with the rocker mechanism. Through the above arrangement, the sealing performance and working reliability of the rocker connection mechanism can be improved.

Description

Technical Field

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

[0002] When the all-terrain vehicle is starting or driving, the rocker mechanism and the frame of the all-terrain vehicle rotate. Therefore, the rotating connection between the rocker mechanism and the frame needs to be lubricated to reduce the wear between the rocker mechanism and the frame, prevent the gap between the rocker mechanism and the frame from becoming larger or the rocker mechanism from being damaged, thereby improving the working reliability of the rocker mechanism.

[0003] In the prior art, the rocker mechanism and the frame are rotatably connected via a rocker connecting mechanism. In order to reduce the wear between the rocker mechanism and the frame, a refueling nozzle is provided on the rocker connecting mechanism, and lubricating oil is provided to the rocker connecting mechanism through the refueling nozzle, thereby improving the lubrication effect between the rocker mechanism and the frame. However, the existing rocker connecting mechanism has poor sealing performance, and the lubricating oil will overflow from the rocker connecting mechanism, so that the lubricating oil will absorb external impurities such as stones and sand, and then the external impurities will exist in the rotating connection between the rocker mechanism and the frame, thereby increasing the wear between the rocker mechanism and the frame and reducing the working reliability of the rocker mechanism.

[0004] Therefore, how to improve the sealing performance of the rocker arm connection mechanism to improve the working reliability of the rocker arm connection mechanism is an issue that needs to be solved urgently. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide an all-terrain vehicle, whose rocker arm connection mechanism has good sealing performance and working reliability.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] An all-terrain vehicle comprises a frame, a travel system, a power system and a suspension system. The travel system is at least partially located at the lower side of the frame; the power system is supported by the frame and is transmission-connected to the travel system; the suspension system connects the travel system to the frame, the suspension system comprises a rocker mechanism and a rocker connection mechanism rotatably connected to the frame, the rocker mechanism and the frame are rotationally connected through the rocker connection mechanism, the rocker connection mechanism comprises an inner bushing, a fastener, a bearing member, and a sealing assembly, the inner bushing is sleeved on the fastener and fixed to the frame through the fastener, the bearing member is sleeved on the inner bushing or the fastener, the bearing member at least partially can rotate relative to the inner bushing, the sealing assembly is sleeved on the inner bushing and has an interference fit with the inner bushing, the sealing assembly can also be rotationally connected to the inner bushing, the rocker mechanism at least partially sleeved on the sealing member and has an interference fit with the sealing member, the bearing member is located in the rocker mechanism, and the outer ring of the bearing member rotates synchronously with the rocker mechanism.

[0008] Furthermore, the bearing component is a spherical bearing, which includes a rotating inner ring and a rotating outer ring, which are rotatably connected to each other, the rotating inner ring is sleeved on the fastener and fixed to the frame through the fastener, and the rotating outer ring is fixedly connected to the rocker arm mechanism.

[0009] Furthermore, the inner sleeve includes a first inner sleeve and a second inner sleeve distributed along the axial direction of the inner sleeve, and along the axial direction of the inner sleeve, the rotating inner ring is located between the first inner sleeve and the second inner sleeve, and the first inner sleeve and the rotating inner ring are abutted, and the second inner sleeve and the rotating inner ring are abutted, and fasteners fix the first inner sleeve, the rotating inner ring and the second inner sleeve to the frame.

[0010] Further, when the fastener fixes the inner lining sleeve to the vehicle frame, the first inner lining member and the second inner lining member have a preload force to fix the rotating inner ring.

[0011] Furthermore, the bearing component is a needle bearing, and the bearing component includes an outer ring and an inner ring that rotate relative to each other, the inner ring is sleeved on the inner sleeve and is slidably connected to the inner sleeve, and the outer ring is rotatably connected to the inner sleeve.

[0012] Furthermore, two sealing assemblies are provided, and both ends of the inner bushing are sleeved with sealing assemblies, and along the axial direction of the inner bushing, there is a movement gap between the sealing assembly and the frame.

[0013] Furthermore, at least two rocker arm connection mechanisms are provided, and the two rocker arm connection mechanisms are basically located at the same height of the all-terrain vehicle. The two rocker arm connection mechanisms are defined as a first connection mechanism and a second connection mechanism, respectively. The bearing member of the first connection mechanism is a spherical bearing, and the bearing member of the second connection mechanism is a needle bearing.

[0014] Furthermore, the sealing assembly includes a sealing body and a sealing rubber fixedly connected to the sealing body, and along the radial direction of the inner bushing, the sealing rubber is located between the sealing body and the inner bushing; the sealing rubber is deformed to achieve an interference fit between the sealing rubber and the inner bushing.

[0015] Furthermore, the frame includes a rocker arm fixing bracket, two rocker arm fixing brackets are provided, and along the axial direction of the inner bushing, the rocker arm connecting mechanism is located between the two rocker arm fixing brackets; the sealing body at least partially extends along the radial direction of the inner bushing to form an abutment portion, and along the axial direction of the inner bushing, the abutment portion is located between the rocker arm fixing bracket and the rocker arm mechanism, the abutment portion and the rocker arm mechanism are abutted or fixedly connected, and there is a moving gap between the abutment portion and the rocker arm fixing bracket.

[0016] Furthermore, a bracket hole is opened on the rocker arm fixing bracket, and a bushing hole is opened on the inner bushing along its axial direction and penetrating the inner bushing. The fastener passes through the bracket hole, bushing hole and bracket hole of one rocker arm fixing bracket and is fixed by a nut.

[0017] The above-mentioned all-terrain vehicle can achieve sealing between the rocker mechanism and the rocker connecting mechanism through sealing components and inner sleeves to improve the waterproof and dustproof capabilities of the rocker mechanism and the rocker connecting mechanism, thereby preventing liquids such as water, dust and other impurities from affecting the service life of the rocker mechanism and the rocker connecting mechanism, and preventing the wear of the rocker mechanism and the rocker connecting mechanism from causing the rocker mechanism to shake, thereby improving the working reliability of the rocker mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of an all-terrain vehicle provided in an embodiment of the present application.

[0019] Figure 2 A schematic diagram of the partial structure of the all-terrain vehicle provided in an embodiment of the present application.

[0020] Figure 3 A schematic structural diagram of the suspension system and frame of an all-terrain vehicle provided in an embodiment of the present application.

[0021] Figure 4 A schematic structural diagram of the frame, rocker arm mechanism and first rocker arm connecting mechanism of the all-terrain vehicle provided in an embodiment of the present application.

[0022] Figure 5 For the embodiment of this application Figure 4 A partial enlarged view of point A in the middle.

[0023] Figure 6 A schematic structural diagram of the frame, rocker arm mechanism and second rocker arm connection mechanism of the all-terrain vehicle provided in an embodiment of the present application.

[0024] Figure 7 A schematic structural diagram of the frame, rocker arm mechanism and third rocker arm connecting mechanism of the all-terrain vehicle provided in an embodiment of the present application.

[0025] Figure 8 For the embodiment of this application Figure 7 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0026] 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 manner of the present application will be clearly and completely described below in conjunction with the drawings in the implementation manner of the present application.

[0027] like Figure 1 and Figure 2As shown, an all-terrain vehicle 100 includes a frame 11, a traveling system 12, a power system 13, a suspension system 14 and a body covering 15. The frame 11 serves as the basic framework of the all-terrain vehicle 100 and is used to support the traveling system 12, the power system 13, the suspension system 14 and the body covering 15. The traveling system 12 is connected to the frame 11 through the suspension system 14. The power system 13 is transmission-connected to the traveling system 12 to provide a driving force for the movement of the traveling system 12. The body covering 15 is generally a plastic part, which is used to cover and be connected to the frame 11 to form the appearance of the all-terrain vehicle 100.

[0028] In order to clearly illustrate the technical solution of this application, the following is also defined: Figure 1 In the present application, the length direction of the all-terrain vehicle 100 refers to the front, rear, left, right, top, and bottom. Figure 1 The front-to-back direction in the all-terrain vehicle 100 refers to the width direction of the all-terrain vehicle 100. Figure 1 The left and right directions in the figure, the height direction of the all-terrain vehicle 100 refers to Figure 1 The up and down directions in .

[0029] Specifically, the traveling system 12 is at least partially located at the lower side of the frame 11 , thereby facilitating the movement of the traveling system 12 .

[0030] like Figure 3 and Figure 4 As shown, as an implementation, the suspension system 14 includes a rocker mechanism 141 and a rocker connecting mechanism 142, and the rocker mechanism 141 is rotatably connected to the frame 11 through the rocker connecting mechanism 142. The rocker connecting mechanism 142 includes an inner bushing 1421, a fastener 1422, an outer bushing 1423 and a sealing assembly 1424. The inner bushing 1421 is sleeved on the fastener 1422, and the fastener 1422 fixes the inner bushing 1421 and the sealing assembly 1424 to the frame 11. The outer bushing 1423 is sleeved on the inner bushing 1421 and can be rotatably connected to the inner bushing 1421. The sealing assembly 1424 is sleeved on the outer bushing 1423 and has an interference fit with the outer bushing 1423. The outer bushing 1423 can also be rotatably connected to the sealing assembly 1424. The outer bushing 1423 is at least partially located in the rocker mechanism 141 and has an interference fit with the rocker mechanism 141. Optionally, the fastener 1422 can be configured as a bolt, and the fastener 1422 can pass through the inner bushing 1421 and the frame 11 and then be fixed by a nut, so that the inner bushing 1421 can be fixed to the frame 11.

[0031] Illustratively, along the axial direction of the inner sleeve 1421, the sealing assembly 1424 can be at least partially disposed between the inner sleeve 1421 and the frame 11, so that when the fastener 1422 fixes the inner sleeve 1421 and the frame 11, the sealing assembly 1424 can be simultaneously fixed to the frame 11, thereby achieving the inner sleeve 1421 and the sealing assembly 1424 being simultaneously fixed to the frame 11 by one fastener 1422, thereby improving the assembly efficiency of the inner sleeve 1421 and the sealing assembly 1424 being fixed to the frame 11.

[0032] It should be noted that there is not only one way to fix the inner sleeve 1421 and the sealing assembly 1424 to the frame 11 through the fasteners 1422. It is only necessary that the fasteners 1422 can fix the inner sleeve 1421 and the sealing assembly 1424 to the frame 11. At the same time, the number of fasteners 1422 can also be adjusted according to the specific fixing method, and this application does not impose any restrictions.

[0033] In order to improve the sealing performance between the inner bushing 1421 and the sealing assembly 1424 , the sealing assembly 1424 of the present application may be at least partially disposed between the inner bushing 1421 and the vehicle frame 11 .

[0034] Specifically, the inner sleeve 1421 is basically a hollow cylinder, and along the radial direction of the inner sleeve 1421, starting from the axis of the inner sleeve 1421, it is sequentially arranged as a fastener 1422, an inner sleeve 1421, an outer sleeve 1423, a sealing assembly 1424, and a rocker mechanism 141, so that the above structures can cooperate with each other to realize the normal operation of the rocker mechanism 141.

[0035] Through the above arrangement, the inner sleeve 1421 and the sealing assembly 1424 can be fixed to the frame 11 through the fastener 1422, that is, the inner sleeve 1421, the sealing assembly 1424 and the fastener 1422 can be stationary relative to the frame 11, and the rocker mechanism 141 and the outer sleeve 1423 can rotate relative to the fastener 1422.

[0036] At the same time, the outer bushing 1423 can be sealed by the sealing assembly 1424; the sealing between the outer bushing 1423 and the rocker arm mechanism 141 is achieved through the interference fit between the outer bushing 1423 and the rocker arm mechanism 141; the sealing assembly 1424 is at least partially arranged between the inner bushing 1421 and the frame 11, so that the fastener 1422 can simultaneously fix the inner bushing 1421 and the sealing assembly 1424 to the frame 11, thereby achieving the sealing between the inner bushing 1421 and the sealing assembly 1424. Therefore, the above-mentioned arrangement can achieve sealing between the rocker mechanism 141 and the rocker connecting mechanism 142, so as to improve the waterproof and dustproof capabilities of the rocker mechanism 141 and the rocker connecting mechanism 142, thereby preventing liquids such as water, dust and other impurities from affecting the service life of the rocker mechanism 141 and the rocker connecting mechanism 142, and preventing liquids such as water, dust and other impurities from increasing the wear of the rocker mechanism 141 and the rocker connecting mechanism 142, thereby preventing the wear of the rocker mechanism 141 and the rocker connecting mechanism 142 from causing the rocker mechanism 141 to shake, so as to improve the working reliability of the rocker mechanism 141.

[0037] In addition, the sealing between the above components can form a substantially sealed lubrication space 1401 between the rocker arm mechanism 141 and the rocker arm connection mechanism 142. The lubrication space 1401 is filled with lubricating oil, which is beneficial to improve the lubrication effect between the rocker arm mechanism 141 and the rocker arm connection mechanism 142, reduce the wear between the rocker arm mechanism 141 and the rocker arm connection mechanism 142, and further improve the working reliability of the rocker arm mechanism 141.

[0038] Furthermore, since the above arrangement can reduce the wear between the rocker arm mechanism 141 and the rocker arm connecting mechanism 142, a lightweight material can be selected for the rocker arm mechanism 141, thereby achieving lightweighting of the rocker arm mechanism 141 while reducing costs.

[0039] In the present application, two outer sleeves 1423 and two sealing assemblies 1424 are provided, and both ends of the inner sleeve 1421 are sleeved with outer sleeves 1423. Along the axial direction of the inner sleeve 1421, one sealing assembly 1424 at least partially overlaps with one end of the inner sleeve 1421, and the other sealing assembly 1424 at least partially overlaps with the other end of the inner sleeve 1421. The two sealing assemblies 1424 are respectively abutted against the two ends of the inner sleeve 1421, so that the fasteners 1422 fix the inner sleeve 1421 and the sealing assembly 1424 to the frame 11.

[0040] More specifically, along the axial direction of the inner sleeve 1421, the sealing assembly 1424 and the outer sleeve 1423 at least partially overlap, and there is a moving gap 1404 between the sealing assembly 1424 and the outer sleeve 1423 along the axial direction of the inner sleeve 1421, so that when the rocker arm mechanism 141 is connected to the frame 11 through the rocker arm connecting mechanism 142, the assembly error between the rocker arm mechanism 141 and the frame 11 can be adjusted through the moving gap 1404, which is beneficial to the installation of the rocker arm mechanism 141 and the frame 11, and improves the installation convenience of the rocker arm mechanism 141.

[0041] like Figure 4 and Figure 5 As shown, in this embodiment, the first sealing portion 1402 is formed at the joint of the sealing component 1424 and the outer bushing 1423, and the second sealing portion 1403 is formed at the joint of the outer bushing 1423 and the rocker mechanism 141, so that the space between the inside of the rocker mechanism 141 and the outside of the inner bushing 1421, the moving gap 1404 between the sealing component 1424 and the outer bushing 1423, and the rotation connection between the outer bushing 1423 and the inner bushing 1421 together form a substantially closed lubrication space 1401. Among them, the first sealing portion 1402 and the second sealing portion 1403 are used to seal the lubrication space 1401, which is conducive to reducing the wear between the rocker mechanism 141 and the rocker connection mechanism 142. At the same time, due to the existence of the first sealing part 1402 and the second sealing part 1403, the lubricating oil in the lubricating space 1401 can be prevented from overflowing, so there is no need to set a refueling nozzle to provide lubricating oil to the lubricating space 1401, thereby effectively solving the problem of lubricating oil overflow and maintenance of the rocker arm connecting mechanism 142.

[0042] Exemplarily, the sealing assembly 1424 includes a sealing frame 1424a and a sealing elastic member 1424b fixedly connected to the sealing frame 1424a. In the axial direction of the inner sleeve 1421, the sealing frame 1424a and the inner sleeve 1421 at least partially overlap, and in the axial direction of the inner sleeve 1421, the sealing frame 1424a is located between the inner sleeve 1421 and the frame 11, so that the fastener 1422 can pass through the sealing frame 1424a and the inner sleeve 1421 and then be fixed to the nut, and then the sealing frame 1424a and the inner sleeve 1421 are fixedly connected to the frame 11 through the fastener 1422, so that the sealing assembly 1424 and the inner sleeve 1421 are stationary relative to the frame 11. Along the axial direction of the inner sleeve 1421 , the sealing frame 1424 a and the outer sleeve 1423 at least partially overlap, and a movement gap 1404 exists between the sealing frame 1424 a and the outer sleeve 1423 along the axial direction of the inner sleeve 1421 .

[0043] The sealing elastic member 1424b is interference fit with the outer bushing 1423, and the sealing elastic member 1424b can be set to an elastic material such as rubber, so that the sealing elastic member 1424b can be interference fit with the outer bushing 1423 while also enabling relative rotation between the outer bushing 1423 and the sealing elastic member 1424b. The first sealing portion 1402 is formed at the fitting point between the sealing elastic member 1424b and the outer bushing 1423.

[0044] In this embodiment, the outer bushing 1423 includes a bushing body 1423a, which is substantially a hollow cylinder. The bushing body 1423a extends in the radial direction of the outer bushing 1423 to form an outer edge portion 1423b, wherein the radial direction of the outer bushing 1423 refers to the radial direction of the bushing body 1423a. Specifically, the bushing body 1423a is at least partially located in the rocker mechanism 141 and is interference fit with the inner wall of the rocker mechanism 141, and the connection between the bushing body 1423a and the inner wall of the rocker mechanism 141 forms a second sealing portion 1403. Along the axial direction of the inner bushing 1421, the outer edge portion 1423b is located between the sealing assembly 1424 and the rocker mechanism 141, and there is a moving gap 1404 between the outer edge portion 1423b and the sealing skeleton 1424a along the axial direction of the inner bushing 1421. The sealing elastic member 1424b is interference fit with the outer edge portion 1423b. In addition, along the axial direction of the inner bushing 1421, the side of the outer edge portion 1423b away from the sealing frame 1424a can also be abutted or fixedly connected with the rocker mechanism 141, so that the rocker mechanism 141 is relatively fixed through the outer edges 1423b of the two outer bushings 1423, so as to further improve the connection stability and sealing performance of the two outer bushings 1423 and the rocker mechanism 141.

[0045] Exemplarily, the sealing frame 1424a at least partially extends along the axial direction of the inner sleeve 1421 to form an annular mounting portion 1424f, the annular mounting portion 1424f is arranged around the sealing elastic member 1424b, and the sealing elastic member 1424b is fixedly connected to the annular mounting portion 1424f. The connection between the annular mounting portion 1424f and the sealing elastic member 1424b can be adhesive bonding, etc., which is not limited in this application.

[0046] Exemplarily, along the radial direction of the inner sleeve 1421, the sealing elastic member 1424b is located between the annular mounting portion 1424f and the outer edge portion 1423b, and the sealing elastic member 1424b is deformed to make the sealing elastic member 1424b and the outer edge portion 1423b have an interference fit. Specifically, the distance between the annular mounting portion 1424f and the outer edge portion 1423b along the radial direction of the inner sleeve 1421 is smaller than the thickness of the sealing elastic member 1424b along the radial direction of the inner sleeve 1421, so that the sealing elastic member 1424b can be squeezed by the annular mounting portion 1424f and the outer edge portion 1423b to deform, so as to facilitate the interference fit of the sealing elastic member 1424b and the outer edge portion 1423b.

[0047] It should be noted that, along the radial direction of the inner sleeve 1421 , the annular mounting portion 1424f , the sealing elastic member 1424b , the outer edge portion 1423b , the inner sleeve 1421 and the fastener 1422 at least partially overlap.

[0048] As an optional implementation, the frame 11 includes a rocker arm fixing bracket 114, two rocker arm fixing brackets 114 are provided, and along the axial direction of the inner sleeve 1421, the rocker arm connecting mechanism 142 is located between the two rocker arm fixing brackets 114, so that the fastener 1422 can pass through one rocker arm fixing bracket 114, the rocker arm connecting mechanism 142, and the other rocker arm fixing bracket 114 and then be fixed by a nut.

[0049] Specifically, along the axial direction of the inner sleeve 1421, the sealing assembly 1424 is at least partially located between the rocker arm fixing bracket 114 and the inner sleeve 1421, so that the fastener 1422 can fix the sealing assembly 1424. When two sealing assemblies 1424 are provided and the two sealing assemblies 1424 are installed at both ends of the inner sleeve 1421, along the axial direction of the inner sleeve 1421, a rocker arm fixing bracket 114, a sealing frame 1424a, the inner sleeve 1421, another sealing frame 1424a and another rocker arm fixing bracket 114 are sequentially provided, so that the two sealing assemblies 1424 and the inner sleeve 1421 can be fixedly connected to the rocker arm fixing bracket 114 through a fastener 1422.

[0050] In this embodiment, a bracket hole 1141 is formed on the rocker arm fixing bracket 114, and a bushing hole 1421a is formed on the inner bushing 1421. The bushing hole 1421a extends axially along the inner bushing 1421 and penetrates the inner bushing 1421. The fastener 1422 passes through the bracket hole 1141 and the bushing hole 1421a of one rocker arm fixing bracket 114, and the bracket hole 1141 of another rocker arm fixing bracket 114, and is then fixed by a nut.

[0051] It should be noted that both the inner bushing 1421 and the outer bushing 1423 are made of steel, thereby improving the structural strength of the inner bushing 1421 and the outer bushing 1423 .

[0052] like Figure 6 and Figure 7 As shown, as another implementation, the rocker arm connection mechanism 142 includes an inner bushing 1421 , a fastener 1422 , a bearing 1425 and a sealing assembly 1424 .

[0053] The inner sleeve 1421 is sleeved on the fastener 1422 and fixed to the vehicle frame 11 through the fastener 1422. The bearing member 1425 is sleeved on the inner sleeve 1421 or the fastener 1422. The bearing member 1425 can at least partially rotate relative to the inner sleeve 1421. The sealing assembly 1424 is sleeved on the inner sleeve 1421 and has an interference fit with the inner sleeve 1421. The sealing assembly 1424 can also be rotatably connected with the inner sleeve 1421. The rocker mechanism 141 is at least partially sleeved on the sealing assembly 1424 and has an interference fit with the sealing assembly 1424. The bearing member 1425 is located in the rocker mechanism 141 and at least partially rotates synchronously with the rocker mechanism 141. The bearing member 1425 includes an inner ring and an outer ring that can rotate relatively. The outer ring of the bearing member 1425 rotates synchronously with the rocker mechanism 141. Optionally, the fastener 1422 can be configured as a bolt, and the fastener 1422 can pass through the inner bushing 1421 and the frame 11 and then be fixed by a nut, so that the inner bushing 1421 can be fixed to the frame 11.

[0054] Through the above arrangement, the inner sleeve 1421 can be fixed to the frame 11 through the fastener 1422, that is, the inner sleeve 1421 and the fastener 1422 are stationary relative to the frame 11, and the rocker mechanism 141, the sealing assembly 1424 and at least part of the bearing 1425 can rotate relative to the fastener 1422.

[0055] At the same time, the sealing between the sealing component 1424 and the inner bushing 1421 is achieved through the interference fit between the sealing component 1424 and the inner bushing 1421; the sealing between the rocker mechanism 141 and the sealing component 1424 is achieved through the interference fit between the rocker mechanism 141 and the sealing component 1424. Therefore, the above-mentioned configuration can achieve the sealing between the rocker mechanism 141 and the rocker connecting mechanism 142, so as to improve the waterproof and dustproof capabilities of the rocker mechanism 141 and the rocker connecting mechanism 142, thereby preventing liquids such as water and impurities such as dust from affecting the service life of the rocker mechanism 141 and the rocker connecting mechanism 142, and preventing liquids such as water and impurities such as dust from increasing the wear of the rocker mechanism 141 and the rocker connecting mechanism 142, thereby preventing the rocker mechanism 141 from shaking due to the wear of the rocker mechanism 141 and the rocker connecting mechanism 142, so as to improve the working reliability of the rocker mechanism 141.

[0056] In addition, through the sealing between the above components, a substantially sealed lubrication space 1405 is formed between the rocker mechanism 141 and the rocker connecting mechanism 142. The lubrication space 1405 is filled with lubricating oil, which is beneficial to improve the lubrication effect between the rocker mechanism 141 and the rocker connecting mechanism 142, so as to reduce the wear between the rocker mechanism 141 and the rocker connecting mechanism 142, and further improve the working reliability of the rocker mechanism 141. It should be noted that the specific formation method of the lubrication space 1405 will be described later and will not be repeated here.

[0057] Specifically, when the bearing component 1425 is sleeved on the inner sleeve 1421, along the radial direction of the inner sleeve 1421, starting from the axis of the inner sleeve 1421, the fastener 1422, the inner sleeve 1421, the bearing component 1425 and the sealing assembly 1424, and the rocker mechanism 141 are sequentially arranged, that is, along the radial direction of the inner sleeve 1421, the distances between the bearing component 1425 and the sealing assembly 1424 and the axis of the inner sleeve 1421 are basically the same.

[0058] Or when the bearing component 1425 is sleeved on the fastener 1422, along the radial direction of the inner sleeve 1421, starting from the axis of the inner sleeve 1421, it is sequentially arranged as the fastener 1422, the inner sleeve 1421 and at least part of the bearing component 1425, at least part of the bearing component 1425 and the sealing assembly 1424, and the rocker mechanism 141, that is, the distance between the inner sleeve 1421 and at least part of the bearing component 1425 and the axis of the inner sleeve 1421 is basically the same, and the distance between at least part of the bearing component 1425 and the sealing assembly 1424 and the axis of the inner sleeve 1421 is basically the same, so that the above-mentioned structures can cooperate with each other to realize the normal operation of the rocker mechanism 141.

[0059] It should be noted that when the bearing component 1425 is sleeved on the fastener 1422, the inner sleeve 1421 and at least part of the bearing component 1425 at least partially overlap along the axial direction of the inner sleeve 1421, and the inner sleeve 1421 and at least part of the bearing component 1425 abut against each other, so that the fastener 1422 can fix the inner sleeve 1421 and at least part of the bearing component 1425 at the same time.

[0060] like Figure 6As shown, a bearing member 1425 is sleeved on a fastener 1422 as an example for detailed description. As an optional implementation, the bearing member 1425 is a spherical bearing, and the bearing member 1425 includes a rotating inner ring 1425a and a rotating outer ring 1425b. Among them, the rotating inner ring 1425a is the inner ring of the bearing member 1425, and the rotating outer ring 1425b is the outer ring of the bearing member 1425. The rotating inner ring 1425a and the rotating outer ring 1425b are rotatably connected. The rotating inner ring 1425a is sleeved on the fastener 1422, and the rotating inner ring 1425a also abuts against the inner bushing 1421, so that the fastener 1422 can be simultaneously penetrated through the inner bushing 1421, the rotating inner ring 1425a and the frame 11 and then connected with the nut. The rotating outer ring 1425b is fixedly connected to the rocker mechanism 141.

[0061] Specifically, the rotating inner ring 1425a is fixed to the frame 11 by the fastener 1422, so that the rotating inner ring 1425a is stationary relative to the frame 11; the rotating outer ring 1425b can rotate relative to the fastener 1422, that is, the rotating outer ring 1425b can rotate synchronously with the rocker mechanism 141, so that the rocker mechanism 141 can be rotatably connected to the frame 11 through the rocker connecting mechanism 142.

[0062] In this embodiment, the inner sleeve 1421 includes a first inner lining member 1421b and a second inner lining member 1421c distributed along the axial direction of the inner sleeve 1421. Along the axial direction of the inner sleeve 1421, the rotating inner ring 1425a is located between the first inner lining member 1421b and the second inner lining member 1421c, and the first inner lining member 1421b and the rotating inner ring 1425a are abutted, and the second inner lining member 1421c and the rotating inner ring 1425a are abutted. The fastener 1422 fixes the first inner lining member 1421b, the rotating inner ring 1425a and the second inner lining member 1421c to the frame 11.

[0063] When the fastener 1422 fixes the inner sleeve 1421 to the vehicle frame 11 , the first inner lining member 1421 b and the second inner lining member 1421 c have a pre-tightening force to fix the rotating inner ring 1425 a .

[0064] Through the above arrangement, the rotating inner ring 1425 a can be kept stationary relative to the frame 11 through the inner bushing 1421 , so that the rotating inner ring 1425 a and the inner bushing 1421 are fixed by the fastener 1422 .

[0065] like Figure 7As shown, a bearing member 1425 is sleeved on the inner sleeve 1421 as an example for detailed description. As another optional implementation, the bearing member 1425 is a needle bearing, and the bearing member 1425 also includes an inner ring and an outer ring that can rotate relatively, the inner ring of the bearing member 1425 is sleeved on the inner sleeve 1421, the outer ring of the bearing member 1425 is rotatably connected to the inner sleeve 1421 through the inner ring of the bearing member 1425, and the outer ring of the bearing member 1425 is fixedly connected to the rocker mechanism 141. At this time, the rocker mechanism 141, the sealing assembly 1424 and the outer ring of the bearing member 1425 can rotate relative to the fastener 1422.

[0066] In addition, in this embodiment, the inner ring of the bearing member 1425 can also be slidably connected to the inner sleeve 1421, so that the rocker mechanism 141, the sealing assembly 1424 and the bearing member 1425 can move axially along the inner sleeve 1421 relative to the fastener 1422.

[0067] like Figure 7 and Figure 8 As shown, specifically, along the axial direction of the inner sleeve 1421, there is a moving gap 1406 between the sealing assembly 1424 and the frame 11, so that the rocker mechanism 141 and the sealing assembly 1424 can move along the axial direction of the inner sleeve 1421 through the needle bearing, and then adapt to the assembly tolerance of the rocker connecting mechanism 142, the rocker mechanism 141 and the frame 11, so as to facilitate the installation of the rocker mechanism 141 and the rocker connecting mechanism 142.

[0068] In this embodiment, two sealing assemblies 1424 are provided, and both ends of the inner sleeve 1421 are sleeved with sealing assemblies 1424, so that both ends of the inner sleeve 1421 can be rotatably connected to the two sealing assemblies 1424. The two ends of the rocker mechanism 141 are respectively interference fit with the two sealing assemblies 1424.

[0069] Through the above-mentioned arrangement, along the axial direction of the inner sleeve 1421, a moving gap 1406 can be provided between each sealing assembly 1424 and the frame 11, so that the rocker arm mechanism 141, the sealing assembly 1424 and the bearing member 1425 can realize reciprocating movement along the axial direction of the inner sleeve 1421, so that the position of the rocker arm connecting mechanism 142 relative to the frame 11 can be adjusted, thereby adapting to the assembly tolerance of the rocker arm connecting mechanism 142, the rocker arm mechanism 141 and the frame 11.

[0070] like Figure 6 and Figure 7As shown, illustratively, when at least two rocker arm connection mechanisms 142 are provided, the two rocker arm connection mechanisms 142 are substantially located at the same height of the all-terrain vehicle 100. The two rocker arm connection mechanisms 142 are defined as a first connection mechanism 1426 and a second connection mechanism 1427, respectively. The bearing member 1425 of the first connection mechanism 1426 is a spherical bearing, and the bearing member 1425 of the second connection mechanism 1427 is a needle bearing. Through the above arrangement, the first connection mechanism 1426 with the spherical bearing can not move axially along the inner bushing 1421, and the second connection mechanism 1427 with the needle bearing can move axially along the inner bushing 1421, thereby facilitating the assembly between the rocker arm mechanism 141 and the frame 11.

[0071] like Figure 7 and Figure 8 As shown, as an implementation, the sealing assembly 1424 includes a sealing body 1424c and a sealing rubber 1424d fixedly connected to the sealing body 1424c. The sealing body 1424c is interference-fitted with the rocker mechanism 141, and the sealing rubber 1424d is interference-fitted with the inner bushing 1421 and is rotatably connected to the inner bushing 1421. The sealing rubber 1424d is deformed to make the sealing rubber 1424d and the inner bushing 1421 interference-fitted.

[0072] Along the radial direction of the inner sleeve 1421 , the sealing rubber 1424d is located between the sealing body 1424c and the inner sleeve 1421 , so that the sealing rubber 1424d and the inner sleeve 1421 are rotationally connected when the interference fit between the sealing rubber 1424d and the inner sleeve 1421 is satisfied.

[0073] Specifically, the sealing body 1424c at least partially extends along the radial direction of the inner sleeve 1421 to form an abutment portion 1424e. Along the axial direction of the inner sleeve 1421, the abutment portion 1424e is located between the rocker arm fixing bracket 114 and the rocker arm mechanism 141. There is a moving gap 1406 between the abutment portion 1424e and the rocker arm fixing bracket 114, so that the second connecting mechanism 1427 with a needle bearing can move axially along the inner sleeve 1421.

[0074] More specifically, along the axial direction of the inner sleeve 1421, the abutment portion 1424e at least partially overlaps with the rocker mechanism 141, and the abutment portion 1424e also abuts or is fixedly connected to the rocker mechanism 141. In the present application, in order to improve the sealing performance between the sealing assembly 1424 and the rocker mechanism 141, the abutment portion 1424e is fixedly connected to the rocker mechanism 141.

[0075] In the present application, the first sealing portion 1407 is formed at the joint of the sealing component 1424 and the inner bushing 1421, and the second sealing portion 1408 is formed at the joint of the sealing component 1424 and the rocker mechanism 141, so that the space between the inside of the rocker mechanism 141 and the outside of the inner bushing 1421 forms a substantially closed lubrication space 1405. Among them, the first sealing portion 1407 and the second sealing portion 1408 are used to seal the lubrication space 1405, which is conducive to reducing the wear between the rocker mechanism 141 and the rocker connection mechanism 142. At the same time, due to the presence of the first sealing portion 1407 and the second sealing portion 1408, the lubricating oil in the lubrication space 1405 can also be prevented from overflowing, so there is no need to set a grease nozzle to provide lubricating oil to the lubrication space 1405, thereby effectively solving the problem of lubricating oil overflow and maintenance of the rocker connection mechanism 142.

[0076] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An all-terrain vehicle comprising: Frame; a traveling system, wherein the traveling system is at least partially located on the lower side of the frame; A power system, the power system is supported by the frame and is transmission-connected to the travel system; A suspension system, the suspension system connecting the traveling system to the frame, the suspension system comprising a rocker mechanism rotatably connected to the frame; It is characterized in that The suspension system also includes a rocker arm connection mechanism, the rocker arm mechanism and the frame are rotatably connected through the rocker arm connection mechanism, the rocker arm connection mechanism includes an inner bushing, a fastener, a bearing member, and a sealing assembly, the inner bushing is sleeved on the fastener and fixed to the frame through the fastener, the bearing member is sleeved on the inner bushing or the fastener, the bearing member is at least partially rotatable relative to the inner bushing, the sealing assembly is sleeved on the inner bushing and has an interference fit with the inner bushing, and the sealing assembly can also be rotatable with the inner bushing Rotationally connected, the rocker mechanism is at least partially sleeved on the sealing assembly and has an interference fit with the sealing assembly, the bearing member is located in the rocker mechanism, the outer ring of the bearing member rotates synchronously with the rocker mechanism, two sealing members are provided, both ends of the inner sleeve are sleeved with the sealing members, along the axial direction of the inner sleeve, the bearing member is located between the two sealing members, along the radial direction of the inner sleeve, the bearing member is supported between the inner sleeve and the rocker mechanism, and enables the inner sleeve and the rocker mechanism to rotate relative to each other; The first sealing portion is formed at the cooperation between the sealing assembly and the inner bushing, and the second sealing portion is formed at the cooperation between the sealing assembly and the rocker mechanism, so that a substantially closed lubrication space is formed between the interior of the rocker mechanism and the exterior of the inner bushing, and the first sealing portion and the second sealing portion are used to seal the lubrication space; The sealing assembly comprises a sealing body and a sealing rubber fixedly connected to the sealing body, wherein the sealing rubber is located between the sealing body and the inner bushing in the radial direction of the inner bushing, and the sealing rubber at least partially protrudes toward the sealing body to form an arched cavity, and the sealing rubber is respectively provided with a first notch and a second notch at two ends of the sealing rubber along the axial direction of the inner bushing and the sealing body; The inner ring of the bearing component is slidably connected to the inner sleeve, and the rocker arm mechanism, the sealing assembly and the bearing component can move along the axial direction of the inner sleeve relative to the fastener. Along the axial direction of the inner sleeve, there is a movement gap between the sealing assembly and the frame.

2. The all-terrain vehicle according to claim 1, characterized in that: The bearing component is a spherical bearing, and the bearing component includes a rotating inner ring and a rotating outer ring, the rotating inner ring and the rotating outer ring are rotatably connected, the rotating inner ring is sleeved on the fastener and fixed to the frame through the fastener, and the rotating outer ring is fixedly connected to the rocker mechanism.

3. The all-terrain vehicle according to claim 2, characterized in that: The inner sleeve includes a first inner sleeve and a second inner sleeve distributed along the axial direction of the inner sleeve, and along the axial direction of the inner sleeve, the rotating inner ring is located between the first inner sleeve and the second inner sleeve, and the first inner sleeve abuts against the rotating inner ring, and the second inner sleeve abuts against the rotating inner ring, and the fastener fixes the first inner sleeve, the rotating inner ring and the second inner sleeve to the frame.

4. The all-terrain vehicle according to claim 3, characterized in that: When the fastener fixes the inner sleeve to the frame, the first inner lining member and the second inner lining member have a preload force to fix the rotating inner ring.

5. The all-terrain vehicle according to claim 1, characterized in that: The bearing component is a needle bearing, and the bearing component includes an outer ring and an inner ring that rotate relatively, the inner ring is sleeved on the inner sleeve and is slidably connected to the inner sleeve, and the outer ring is rotatably connected to the inner sleeve.

6. The all-terrain vehicle according to claim 5, characterized in that: Along the axial direction of the inner bushing, there is a movement gap between the sealing assembly and the vehicle frame.

7. The all-terrain vehicle according to claim 1, characterized in that: At least two rocker arm connection mechanisms are provided, and the two rocker arm connection mechanisms are basically located at the same height of the all-terrain vehicle. The two rocker arm connection mechanisms are defined as a first connection mechanism and a second connection mechanism, respectively. The bearing component of the first connection mechanism is a spherical bearing, and the bearing component of the second connection mechanism is a needle bearing.

8. The all-terrain vehicle according to claim 1, characterized in that: The sealing rubber is deformed so that the sealing rubber and the inner bushing are interference-fitted.

9. The all-terrain vehicle according to claim 8, characterized in that: The vehicle frame comprises a rocker arm fixing bracket, two of which are provided, and along the axial direction of the inner bushing, the rocker arm connecting mechanism is located between the two rocker arm fixing brackets; The sealing body at least partially extends along the radial direction of the inner sleeve to form an abutment portion. Along the axial direction of the inner sleeve, the abutment portion is located between the rocker arm fixing bracket and the rocker arm mechanism. The abutment portion and the rocker arm mechanism are abutted or fixedly connected, and a moving gap exists between the abutment portion and the rocker arm fixing bracket.

10. The all-terrain vehicle according to claim 9, characterized in that: The rocker arm fixing bracket is provided with a bracket hole, the inner sleeve is provided with a bushing hole along its axial direction and penetrating the inner sleeve, and the fastener passes through the bracket hole, the bushing hole and the bracket hole of one rocker arm fixing bracket and is fixed by a nut.

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