Roll stabilizer, swing arm and vehicle

Abstract

The present application discloses a roll stabilizer, a vehicle having the same, and a swing arm for a vehicle suspension. The roll stabilizer includes two swing arms and a stabilizing adjustment structure. Transmission members extend from one end of each of the two swing arms connected to the vehicle frame. The stabilizing adjustment structure includes at least one elastic module and is elastically connected to the two transmission members, so that when the two transmission members move closer to or away from each other as the swing arms rotate, the stabilizing adjustment structure applies an elastic force to the transmission members to counteract the relative movement. In such a roll stabilizer, the elastic force used to counteract the relative movement of the transmission members and thus the roll of the vehicle body can be achieved by a stabilizing adjustment structure having a smaller size connected between the two transmission members; the stabilizing adjustment structure is small in size, which is conducive to its arrangement and implementation in the vehicle. In addition, such a stabilizing adjustment structure can use a smaller elastic module, which is conducive to reducing weight and cost.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a roll stabilizing device, a swing arm for a vehicle suspension, and a vehicle having the roll stabilizing device or the swing arm. Background Art

[0002] To improve ride smoothness and comfort, modern vehicles typically design their suspension systems to have lower stiffness. However, this also leads to significant lateral tilt during driving, compromising vehicle stability. Consequently, vehicle manufacturers often incorporate stabilizing structures, primarily stabilizer bars, into their suspension systems to increase suspension roll stiffness and reduce vehicle body roll.

[0003] Traditional stabilizing structures represented by anti-roll bars are elastic devices that prevent excessive vehicle roll. When the vehicle body rolls, they twist themselves to create a force difference between the left and right sides of the vehicle body to reduce the roll tendency and thus reduce the degree of roll.

[0004] However, the currently commonly used transverse stabilizer bar structure includes a stabilizer bar body, a left / right connecting rod, a mounting bushing and a mounting bracket, wherein the stabilizer bar body is a torsion bar spring made of "U"-shaped spring steel, which is placed horizontally at the front / rear end of the car, and is pivotally mounted to the frame / body through the mounting bushing and the mounting bracket, and is connected to the suspension through the left / right connecting rod. Since the transverse stabilizer bar structure adopts a stabilizer bar body made of spring steel, the overall weight is large (approximately 5 kg or more) and the cost is high. Moreover, the transverse stabilizer bar structure has a complex structure and a large volume, and requires a high space for layout in the vehicle. In addition, the stabilizer bar body is mounted on the frame / body, and these mounting points need to withstand large forces during vehicle operation, which puts high demands on the strength of the frame / body. Summary of the Invention

[0005] An object of the present invention is to provide a roll stabilizer, a swing arm for a vehicle suspension, and a vehicle having the roll stabilizer or the swing arm, so as to at least partially overcome the above-mentioned deficiencies in the prior art.

[0006] According to one aspect of the present invention, there is provided a roll stabilization device comprising:

[0007] a first swing arm, one end of the first swing arm being connected to the vehicle frame via a rotating shaft, and the other end being connected to the wheel assembly, the first swing arm being provided with a first transmission member extending from the one end of the first swing arm;

[0008] a second swing arm, one end of the second swing arm being connected to the vehicle frame via a rotating shaft, and the other end being connected to the wheel assembly, the second swing arm being provided with a second transmission member, the second transmission member extending from the one end of the second swing arm, the first transmission member and the second transmission member being arranged opposite to each other and respectively located on either side of the plane where the rotating shaft is located; and

[0009] The stabilizing adjustment structure includes at least one elastic module and is elastically connected to the first transmission member and the second transmission member. When the first transmission member and the second transmission member move closer to or away from each other as the first swing arm and the second swing arm rotate, the stabilizing adjustment structure applies an elastic force to the first transmission member and the second transmission member to resist the relative movement.

[0010] In some embodiments, the at least one elastic module includes a first side elastic module, a second side elastic module and a central elastic module, and the stable adjustment structure further includes a restraining member, a first limiting member and a second limiting member;

[0011] The restraining member fixedly connects the first limiting member and the second limiting member, and the first side elastic module, the central elastic module and the second side elastic module are sequentially arranged between the first limiting member and the second limiting member; and

[0012] The stabilizing adjustment structure is connected to the first transmission member and the second transmission member, so that the first transmission member is located between the first side elastic module and the central elastic module and abuts against them, and the second transmission member is located between the second side elastic module and the central elastic module and abuts against them.

[0013] In some embodiments, the restraining member is a connecting rod, and the first limiting member and the second limiting member are fixed at both ends of the connecting rod; and the first transmission member, the second transmission member, the first side elastic module, the second side elastic module and the central elastic module are all provided with through holes in the center, and the connecting rod passes through the through holes.

[0014] Advantageously, the surfaces of the first side elastic module, the second side elastic module and the central elastic module that abut against the first transmission member or the second transmission member have a centrally protruding arc shape, and a hard protective layer is formed on the surfaces.

[0015] In some embodiments, the central elastic module includes a first central elastic module and a second central elastic module, and the stable adjustment structure further includes a central limiter arranged between the first central elastic module and the second central elastic module, and the central limiter is fixed to the connecting rod.

[0016] In some embodiments, the stabilizing and adjusting structure further includes a gasket located between the first side elastic module and the first limiting member, and between the second side elastic module and the second limiting member.

[0017] In some embodiments, the stabilizing and adjusting structure further includes a gasket located between the first central elastic module and the central limiting member, and between the second central elastic module and the central limiting member.

[0018] Advantageously, the first side elastic module, the second side elastic module, the first central elastic module, and the second central elastic module are identical modules.

[0019] In some embodiments, the restraining member and the first limiting member and the second limiting member are combined to form a frame-like structure, and the frame-like structure includes a pair of restraining walls arranged opposite to each other in a first direction and a pair of limiting walls arranged opposite to each other in a second direction perpendicular to the first direction. The restraining walls are used as the restraining member, and the pair of limiting walls are used as the first limiting member and the second limiting member respectively. The first side elastic module is attached to the inner side of the first limiting member, the second side elastic module is attached to the inner side of the second limiting member, and the central elastic module is fixed on the restraining wall.

[0020] Advantageously, a limiting structure is formed at the end of the first transmission member away from the one end of the first swing arm, and a limiting structure is formed at the end of the second transmission member away from the one end of the second swing arm, for preventing the first transmission member and the second transmission member from being disengaged from the stabilization adjustment structure.

[0021] In some embodiments, the at least one elastic module includes at least one of a rubber block, a polyurethane block, and a spring.

[0022] In some embodiments, the first swing arm includes a first connection portion and a third connection portion at one end, and the second swing arm includes a second connection portion and a fourth connection portion at one end. The first connection portion and the second connection portion are symmetrically disposed relative to the vehicle frame, and the third connection portion and the fourth connection portion are symmetrically disposed relative to the vehicle frame. The first transmission member is disposed on the first connection portion, and the second transmission member is disposed on the second connection portion.

[0023] The third connecting part is provided with a third transmission member, and the third transmission member extends from the third connecting part; the fourth transmission member is provided with a fourth transmission member, and the fourth transmission member extends from the fourth connecting part; the third transmission member and the fourth transmission member are arranged opposite to each other and are respectively located on both sides of the plane where the rotating shaft is located; and the roll stabilization device also includes an additional stability adjustment structure, which includes at least one elastic module and is elastically connected to the third transmission member and the fourth transmission member. When the third transmission member and the fourth transmission member move closer to or away from each other as the first swing arm and the second swing arm rotate, the additional stability adjustment structure applies an elastic force to the third transmission member and the fourth transmission member to counteract the relative movement.

[0024] Advantageously, the additional stabilizing and adjusting structure is identical to the stabilizing and adjusting structure.

[0025] The present invention also discloses a swing arm, one end of which is used to be connected to the vehicle frame via a rotating shaft, and the other end is used to be connected to the wheel assembly. A transmission member is provided on the swing arm, and the transmission member extends from the one end of the swing arm, so that when the swing arm rotates around the rotating shaft, it drives the transmission member to rotate around the rotating shaft.

[0026] Advantageously, the swing arm comprises a swing arm body extending between the one end and the other end, and the angle formed by the transmission member and the swing arm body is an obtuse angle.

[0027] The present invention also discloses a vehicle comprising the roll stabilizing device or the swing arm as described above.

[0028] In the roll stabilizer according to an embodiment of the present invention, two transmission members are positioned at the adjacent ends of two swing arms. The swing arm motion in response to vehicle body roll is converted into relative movement between the two transmission members, moving them closer or farther apart. Therefore, the elastic force used to counteract this relative movement, and thus vehicle body roll, can be provided by a compact stabilizing and adjusting structure connecting the two transmission members. The compact size of the stabilizing and adjusting structure facilitates its deployment within the vehicle. Furthermore, this stabilizing and adjusting structure allows for the use of smaller elastic modules, reducing weight and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 is an exemplary diagram of a partial structure of a vehicle according to an embodiment of the present invention, wherein a roll stabilizing device according to an embodiment of the present invention is shown installed in the vehicle;

[0031] Figure 2 Schematic diagram of the assembly structure of Example 1 of the roll stabilization device according to Embodiment 1 of the present invention;

[0032] Figure 3 for Figure 2 An exploded view of the parts of the roll stabilization device shown;

[0033] Figure 4 Schematic diagram of the assembly structure of Example 2 of the roll stabilization device according to Embodiment 1 of the present invention;

[0034] Figure 5 An exploded view of parts of an example of a roll stabilization device according to a second embodiment of the present invention;

[0035] Figure 6 for Figure 5 Schematic diagram of the assembly structure of the roll stabilization device shown. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for explaining the relevant invention and are not intended to limit the invention. For ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] Figure 1 FIG. 1 is an exemplary diagram of a partial structure of a vehicle according to an embodiment of the present invention, in which a roll stabilizing apparatus 100 according to an embodiment of the present invention is shown installed in the vehicle. Figure 1 The local structure of the vehicle shown includes a frame 1, a left lower swing arm 2, a right lower swing arm 3, a left upper swing arm 4, a right upper swing arm 5, a left wheel assembly 6 and a right wheel assembly 7.

[0039] The roll stabilization device 100 according to the embodiment of the present invention includes a first swing arm 110 , a second swing arm 120 and a stabilization adjustment structure 130 .

[0040] exist Figure 1 In the example shown, the roll stabilization device 100 is constructed based on the left upper swing arm 4 (ie, the first swing arm 110) and the right upper swing arm 5 (ie, the second swing arm 120). Figure 1As shown, one end of the swing arm 110 is connected to the vehicle frame 1 via a rotating shaft, and the other end is connected to the wheel assembly 6. A transmission member 111 extends from the end of the swing arm 110 connected to the vehicle frame 1. One end of the swing arm 120 is connected to the vehicle frame 1 via a rotating shaft, and the other end is connected to the wheel assembly 7. A transmission member 121 extends from the end of the swing arm 120 connected to the vehicle frame 1. The stabilization adjustment structure 130 includes at least one elastic module 131 and is elastically connected to the transmission member 111 and the transmission member 121.

[0041] According to an embodiment of the present invention, such a swing arm including a transmission member can convert the relative movement between the wheel and the body corresponding to the roll of the vehicle body into a relative movement of approaching or moving away from each other between the two transmission members, and finally transmit it to a stabilizing adjustment structure connected to the transmission member; when the two transmission members move closer to or away from each other as the two swing arms rotate, at least one elastic module of the stabilizing adjustment structure applies an elastic force to the transmission member to counteract the above-mentioned relative movement.

[0042] As can be seen, in the roll stabilizer according to an embodiment of the present invention, two transmission members are arranged at the adjacent ends of the two swing arms (the ends connected to the vehicle frame), and the swing arm movement corresponding to the vehicle body roll is converted into relative movement between the two transmission members, moving them closer or farther apart. Therefore, the elastic force used to counteract this relative movement and thus the vehicle body roll can be achieved by a relatively small stabilizing and adjusting structure connecting the two transmission members. The small size of the stabilizing and adjusting structure facilitates its layout and implementation within the vehicle. In addition, such a stabilizing and adjusting structure can adopt a smaller elastic module, which helps to reduce weight and cost.

[0043] It should be understood that, as an alternative or in addition, the roll stabilization device 100 according to the embodiment of the present invention may also be based on, for example Figure 1 The left lower swing arm 2 and the right lower swing arm 3 of the vehicle shown are realized, which can be flexibly determined according to the connection mode of the swing arm to the frame and the available space between the swing arms. Figure 1 Only a partial structure of the vehicle is shown in FIG. It should be understood that the vehicle according to the embodiment of the present invention may employ the roll stabilization device according to the embodiment of the present invention only between its two front wheels or between its two rear wheels, or may employ the roll stabilization device between a pair of wheels arranged side by side. Figure 2 、 Figure 3 and Figure 4 The roll stabilization device according to the first embodiment of the present invention is described in detail.

[0044] Figure 2 FIG. 1 is a schematic diagram of the assembly structure of Example 1 of the roll stabilization device according to Embodiment 1 of the present invention. Figure 2As shown, the roll stabilization device 100 includes a swing arm 110, a swing arm 120, and a stabilization adjustment structure 130. One end 110a of the swing arm 110 is used to connect to the vehicle frame via a rotating shaft, and the other end 110b is used to connect to the wheel assembly. The swing arm 110 is provided with a transmission member 111; one end 120a of the swing arm 120 is used to connect to the vehicle frame via a rotating shaft, and the other end 120b is used to connect to the wheel assembly. The swing arm 120 is provided with a transmission member 121. The transmission members 111 and 121 extend from the ends 110a and 120a of the swing arm 110 and the swing arm 120, respectively, which are used to connect to the vehicle frame. Figure 2 As further shown in the figure, the transmission member 111 and the transmission member 121 are arranged opposite to each other and are respectively located on both sides of the plane P where the rotation axis of the swing arms 110 and 120 for connecting to the frame is located.

[0045] Figure 3 for Figure 2 FIG1 is an exploded view of the roll stabilization device, wherein the stabilization adjustment structure 130 is shown in more detail. Figure 2 and Figure 3 As shown, at least one elastic module 131 of the stabilizing adjustment structure 130 includes a first side elastic module 131a, a second side elastic module 131b and a central elastic module 131c; the stabilizing adjustment structure 130 also includes a connecting rod 132 and a first limiting member 133 and a second limiting member 134 fixedly connected by the connecting rod 132. As shown in the figure, the first side elastic module 131a, the transmission member 111, the central elastic module 131c, the transmission member 121, and the second side elastic module 131b are all provided with through holes, and the connecting rod 132 passes through the above parts in sequence, and the limiting members 133 and 134 are fixed at both ends of the connecting rod 132, so that the first side elastic module 131a, the central elastic module 131c and the second side elastic module 131b are arranged in sequence between the first limiting member 133 and the second limiting member 134; the transmission member 111 is located between the first side elastic module 131a and the central elastic module 131c, and the transmission member 121 is located between the second side elastic module 131b and the central elastic module 131c.

[0046] exist Figure 2 and Figure 3 In the example shown, the central elastic module 131c includes a first central elastic module 131c-1 and a second central elastic module 131c-2, and the stabilizing adjustment structure 130 also includes a central limiting member 135, which is fixedly connected to the connecting rod 132 and is used to cooperate with the first and second side elastic modules 131a and 131b so that the transmission member 111 abuts against the first side elastic module 131a and the central elastic module 131c, and the transmission member 121 abuts against the second side elastic module 131b and the central elastic module 131c.

[0047] Figure 2 and Figure 3 In the figure, the limiting members 133, 134, and 135 are shown as limiting nuts. However, it should be understood that the limiting members in the present invention are not limited to nuts and can be any other structure suitable for limiting the position of the elastic module. By way of example only, the limiting member can be a positioning clamp that can be fixed to a positioning groove on the connecting rod.

[0048] from Figure 1 and Figure 2 From the perspective of the drawing, when the vehicle body tilts to the right, the left swing arm 110 rotates upward counterclockwise, while the right swing arm 120 rotates relatively downward counterclockwise, causing the transmission members 111 and 121 to move away from each other. At this time, the transmission member 111 presses the first side elastic module 131a, and the transmission member 121 presses the second side elastic module 131b; accordingly, the two elastic modules 131a and 131b provide elastic force to counteract the relative movement of the transmission members 111 and 121 away from each other, thereby counteracting the rightward tilt of the vehicle body. Similarly, when the vehicle body tilts to the left, the right swing arm 120 rotates upward clockwise, while the left swing arm 110 rotates relatively downward clockwise, causing the transmission members 111 and 121 to move closer to each other. At this time, transmission members 111 and 121 squeeze central elastic module 131c; accordingly, central elastic module 131c provides an elastic force that counteracts the relative movement of transmission members 111 and 121, thereby counteracting the leftward roll of the vehicle body. It should be understood that the above description is merely exemplary. If the vertical positions of transmission members 111 and 121 relative to plane P are reversed, the relative movement of the transmission members caused by the vehicle body rolling left or right will also change. However, the elastic module 131 can effectively cushion and reduce this movement.

[0049] Advantageously, the surfaces of the side elastic modules 131a contacting the transmission member 111, the surfaces of the central elastic modules 131c-1 contacting the transmission member 111, the surfaces of the side elastic modules 131b contacting the transmission member 121, and the surfaces of the central elastic modules 131c-2 contacting the transmission member 121 can have a centrally protruding arcuate surface. Preferably, a hard padding layer SF can be formed on these surfaces to ensure more uniform force on the elastic modules. In some examples, this hard padding SF can also help prevent wear.

[0050] Advantageously, a gasket 136 may be provided between the side elastic module 131a and the stopper 133 abutting therewith, and between the side elastic module 131b and the stopper 134 abutting therewith. This can make the force applied to the elastic module more uniform, protect the elastic module, and thus extend its service life.

[0051] Similarly, a gasket 136 may be provided between the central elastic module 131 c - 1 and the limiting member 135 abutting against it, and between the central elastic module 131 c - 2 and the limiting member 135 abutting against it.

[0052] Optionally, at least one of the side elastic modules 131a, the side elastic modules 131b, the central elastic module 131c-1, and the central elastic module 131c-2 may include at least one of a rubber block, a polyurethane block, and a spring.

[0053] Preferably, the side elastic module 131a, the side elastic module 131b, the central elastic module 131c-1, and the central elastic module 131c-2 have the same structure and elastic modulus, thereby providing a balanced stabilizing effect for left and right tilt, and is conducive to achieving standardization of parts, reducing production costs, and simplifying assembly work.

[0054] Figure 4 FIG. 1 is a schematic diagram of the assembly structure of Example 2 of the roll stabilization device according to Embodiment 1 of the present invention. In Example 2, as shown in FIG. Figure 4 As shown, the roll stabilization device 100' includes a swing arm 110, a swing arm 120, a stabilization adjustment structure 130', and an additional stabilization adjustment structure 130A'. The end 110a of the swing arm 110 for connecting to the vehicle frame includes a connection portion J1 and a connection portion J3, and the end 120a of the swing arm 120 for connecting to the vehicle frame includes a connection portion J2 and a connection portion J4. The connection portion J1 and the connection portion J2 are relative to the frame (see Figure 1 ) are symmetrically arranged, and the connecting portion J3 and the connecting portion J4 are symmetrically arranged relative to the frame. Figure 4 As shown, the transmission members 111, 121, 112, 122 extend from the connecting parts J1, J2, J3, J4 respectively. The transmission members 111 and 121 are arranged opposite to each other and are respectively located on the plane P where the rotating shafts for connecting with the frame of the swing arms 110 and 120 are located (see Figure 2 ), the transmission member 112 and the transmission member 122 are arranged opposite to each other and are respectively located on both sides of the plane P where the rotating shaft of the swing arm 110, 120 for connecting to the frame is located, and the stabilizing adjustment structure 130' is connected to the transmission members 111, 121, and the additional stabilizing adjustment structure 130A' is connected to the transmission members 112, 122.

[0055] like Figure 4 As shown, the stabilizing and adjusting structure 130' has the same structure as the additional stabilizing and adjusting structure 130A' and is Figure 2 and Figure 3The stabilizing and adjusting structures 130 in the illustrated example have substantially the same structure, with the only difference being that the central stopper 135 is not provided in the stabilizing and adjusting structure 130' and the additional stabilizing and adjusting structure 130A'; the distance between the two opposing transmission members is shorter, and the central elastic modules 131c-1 and 131c-2 (see FIG. Figure 3 ) are close enough so that they can abut against each other and the transmission parts on both sides.

[0056] The central limiting member 135 is omitted in the roll stabilization device 100 ′, which is suitable for a vehicle structure with a shorter distance between two swing arms and has a more compact and miniaturized structure.

[0057] Furthermore, since both connecting portions of the swing arm are connected by a stabilizing and adjusting structure (i.e., stabilizing and adjusting structure 130' and additional stabilizing and adjusting structure 130A'), the forces acting on both sides of the swing arm can be balanced, thereby enhancing the stabilizing and adjusting capability, further reducing the roll amplitude, and improving vehicle ride comfort. It should be understood that, although not shown, the roll stabilizing devices of Example 1 and Example 2 of Embodiment 1 can also employ a configuration in which each swing arm has two connecting portions, both of which are connected by a stabilizing and adjusting structure, thereby achieving the same technical effects described above.

[0058] Alternatively, in Example 2, the central elastic module 131c may be formed as a single integral component.

[0059] Preferably, the central elastic module 131c has a certain elastic coefficient, so that the elastic force provided by the central elastic module 131c when squeezed by the transmission members on both sides can be roughly equivalent to the elastic force provided by the side elastic modules 131a and 131b when squeezed by the transmission members at the same time.

[0060] It should be understood that although Figure 4 The additional stabilizing and adjusting structure 130A′ shown in FIG. 1 has the same structure as the stabilizing and adjusting structure 130′, but the present invention is not limited thereto, and the additional stabilizing and adjusting structure 130A′ may also have different structures.

[0061] Furthermore, it should be understood that in some other examples, such as Figure 2 and Figure 3 Similar to what is shown in Figure 4 The illustrated stabilization adjustment structure can also be applied only to a single connection of the swing arm or to one of the two connections of the swing arm.

[0062] Refer to the following Figure 5 and Figure 6 The roll stabilization device 100 according to the second embodiment of the present invention is introduced. Figure 5 and Figure 6 1 and 2 are respectively a parts exploded view and an assembly structure schematic diagram of an example of a roll stabilization device 100 ″.

[0063] like Figure 5 As shown, the roll stabilization device 100" includes a swing arm 110, a swing arm 120 and a stabilization adjustment structure 130". The swing arm 110 and the swing arm 120 are combined with the above Figure 4 The swing arm in the roll stabilization device 100' has the same structure as that of the above-mentioned one, and will not be described in detail here. According to the second embodiment, the stabilization adjustment device 130" includes a frame structure 10 and at least one elastic module arranged on the frame structure 10. Figure 5 As shown more clearly in FIG, the frame structure 10 includes a pair of limiting walls 11 arranged opposite to each other and a pair of constraining walls 12 arranged opposite to each other in a perpendicular direction.

[0064] The at least one elastic module of the regulating and stabilizing structure 130" includes side elastic modules 131a, 131b and a central elastic module 131c, wherein the side elastic modules 131a and 131b are respectively attached to the inner side of the limiting wall 11, and the central elastic module 131c is arranged in the middle of the frame structure 10 parallel to the limiting wall 11 and fixed on the constraint wall 12.

[0065] It can be seen that in the roll stabilization device 100", the pair of constraint walls 12 are connected to the pair of limiting walls 11 and fix / constrain the relative positions between the limiting walls 11, thereby playing the same constraint role as the connecting rod 132 in the roll stabilization device according to the first embodiment, and can be considered as constraining members; and the pair of limiting walls 11 serve as two limiting members to limit the relative positions of the two side elastic modules 131a and 131b.

[0066] like Figure 6 As shown in , in the assembled state, transmission member 111 is inserted into the space between side elastic module 131a and central elastic module 131c, abutting against the elastic modules on both sides. Transmission member 121 is inserted into the space between side elastic module 131b and central elastic module 131c, abutting against the elastic modules on both sides. When swing arms 110 and 120 swing with the movement of the wheel, at least one elastic module of stabilization adjustment structure 130" can apply an elastic force to transmission members 111, 121, and even to the swing arms, during the relative movement of transmission members 111, 121 toward or away from each other, counteracting this relative movement.

[0067] The roll stability device according to the second embodiment can achieve the roll stability function in the same way as the roll stability device according to the first embodiment, and can further reduce the structural size relative to the latter, facilitating assembly and disassembly. Although not shown in the figure, in the roll stability device 100", advantageously, a limiting structure can be formed at the end of the transmission member 111 that is away from the end 110a where the swing arm 110 is connected to the vehicle frame, and a limiting structure can be formed at the end of the transmission member 121 that is away from the end 120a where the swing arm 120 is connected to the vehicle frame, for preventing the disconnection of the transmission member 111 and the transmission member 121 from the stability adjustment structure 130".

[0068] In addition, similar to the Figure 4 shown roll stability device 100', as Figure 5 and Figure 6 shown, the roll stability device 100" can further include a stability adjustment structure 130A", and the stability adjustment structure 130A" is connected between the transmission member 112 extending from the connection part J3 of the swing arm 110 and the transmission member 122 extending from the connection part J4 of the swing arm 120, and has the same structure as the stability adjustment structure 130". This structure will not be elaborated here.

[0069] According to a variant example (not shown) of the second embodiment of the present invention, the stability adjustment structure can be entirely made of an elastic material and formed into a single-piece integrated elastic module. This elastic module can, for example, have a structure similar to the Figure 5 and Figure 6 shown stability adjustment structure 130", that is, it includes a peripheral frame structure (corresponding to the frame structure 10 and the two side elastic modules 131a, 131b on both sides in the stability adjustment structure 130") and a crossbar part formed in the middle of the frame structure 10 (corresponding to the central elastic module 131c in the stability adjustment structure 130"). In other words, this elastic module can be formed into a structure with a "day" shape. In the assembled state of the roll stability structure according to this variant example, the transmission members of the two swing arms respectively penetrate into the two spaces of this "day" - shaped structure, so that when the two transmission members move relatively closer or farther away as the two swing arms rotate, this single elastic module applies an elastic force against the above - mentioned relative movement to the transmission members.

[0070] According to an embodiment of the present invention, there is also provided a swing arm for a vehicle suspension, that is, the Figures 1 to 6 shown swing arm 110 or swing arm 120. For convenience, the swing arm 110 will be taken as an example for introduction below. Referring to Figure 1 and Figure 2According to an embodiment of the present invention, one end 110a of the swing arm 110 is used to be connected to the frame 1 through a rotating shaft, and the other end 110b is used to be connected to the wheel assembly 6; a transmission member 111 is provided on the swing arm 110, which extends from one end 110a of the swing arm 110, so that when the swing arm 110 rotates around the rotating shaft, it drives the transmission member 111 to rotate around the rotating shaft.

[0071] Advantageously, the swing arm 110 includes a swing arm body 110c extending between two end portions 110a and 110b, and the transmission member 111 forms an obtuse angle with the swing arm body 110c. This configuration allows the transmission members extending from the two swing arms to substantially maintain their relative positions, facilitating effective coordination and proper operation of the transmission members and the stabilizing and adjusting structure.

[0072] The roll stabilization device according to different embodiments of the present invention has been described above with reference to the accompanying drawings. It should be understood that the different embodiments and features thereof may be combined with each other without conflict.

[0073] At the same time, the above description is only a preferred embodiment of the present application and an illustration of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also includes other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, the above-mentioned features can be replaced with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A roll stabilization device comprising: a first swing arm, one end of the first swing arm being connected to the vehicle frame via a rotating shaft, and the other end being connected to the wheel assembly, the first swing arm being provided with a first transmission member extending from the one end of the first swing arm; a second swing arm, one end of the second swing arm being connected to the vehicle frame via a rotating shaft, and the other end being connected to the wheel assembly, the second swing arm being provided with a second transmission member, the second transmission member extending from the one end of the second swing arm, the first transmission member and the second transmission member being arranged opposite to each other and respectively located on either side of the plane where the rotating shaft is located; and The stabilizing adjustment structure includes at least one elastic module and is elastically connected to the first transmission member and the second transmission member. When the first transmission member and the second transmission member move toward or away from each other as the first swing arm and the second swing arm rotate, the stabilizing adjustment structure applies an elastic force to the first transmission member and the second transmission member to resist the relative movement. Wherein, the at least one elastic module includes a first side elastic module, a second side elastic module and a central elastic module, and the stable adjustment structure further includes a restraining member, a first limiting member and a second limiting member; The restraining member fixedly connects the first limiting member and the second limiting member, and the first side elastic module, the central elastic module and the second side elastic module are sequentially arranged between the first limiting member and the second limiting member; and The stabilizing adjustment structure is connected to the first transmission member and the second transmission member, so that the first transmission member is located between the first side elastic module and the central elastic module and abuts against them, and the second transmission member is located between the second side elastic module and the central elastic module and abuts against them.

2. The roll stabilization device according to claim 1, wherein: The restraining member is a connecting rod, and the first limiting member and the second limiting member are fixed at both ends of the connecting rod; and the first transmission member, the second transmission member, the first side elastic module, the second side elastic module and the central elastic module are all provided with through holes in the center, and the connecting rod passes through the through holes.

3. The roll stabilization device according to claim 2, wherein: The surfaces of the first side elastic module, the second side elastic module and the central elastic module that abut against the first transmission member or the second transmission member have a centrally protruding arc shape, and a hard protective layer is formed on the surfaces.

4. The roll stabilization device according to claim 2, wherein: The central elastic module includes a first central elastic module and a second central elastic module, and the stable adjustment structure further includes a central limiting member disposed between the first central elastic module and the second central elastic module, wherein the central limiting member is fixed to the connecting rod.

5. The roll stabilization device according to claim 2, wherein: The stabilizing and adjusting structure further includes a gasket located between the first side elastic module and the first limiting member, and between the second side elastic module and the second limiting member.

6. The roll stabilization device according to claim 4, wherein: The stabilizing and adjusting structure further includes a gasket located between the first central elastic module and the central limiting member, and between the second central elastic module and the central limiting member.

7. The roll stabilization device according to claim 1, wherein: The restraining member, the first limiting member and the second limiting member are combined to form a frame-like structure, and the frame-like structure includes a pair of restraining walls arranged opposite to each other in a first direction and a pair of limiting walls arranged opposite to each other in a second direction perpendicular to the first direction. The restraining walls are used as the restraining member, and the pair of limiting walls are used as the first limiting member and the second limiting member respectively. The first side elastic module is attached to the inner side of the first limiting member, the second side elastic module is attached to the inner side of the second limiting member, and the central elastic module is fixed on the restraining walls.

8. The roll stabilization device according to claim 7, wherein: The end of the first transmission member away from the one end of the first swing arm forms a limiting structure, and the end of the second transmission member away from the one end of the second swing arm forms a limiting structure, which is used to prevent the first transmission member and the second transmission member from disengaging from the stabilization adjustment structure.

9. The roll stabilization device according to any one of claims 1 to 8, wherein: The at least one elastic module includes at least one of a rubber block, a polyurethane block, and a spring.

10. The roll stabilization device according to any one of claims 1 to 8, wherein: The one end of the first swing arm includes a first connecting portion and a third connecting portion, and the one end of the second swing arm includes a second connecting portion and a fourth connecting portion. The first connecting portion and the second connecting portion are symmetrically arranged relative to the frame, and the third connecting portion and the fourth connecting portion are symmetrically arranged relative to the frame.

11. The roll stabilization device according to claim 10, wherein: The first transmission member is disposed on the first connecting portion, and the second transmission member is disposed on the second connecting portion.

12. The roll stabilization device according to claim 11, wherein: A third transmission member is provided on the third connection portion, the third transmission member extending from the third connection portion; a fourth transmission member is provided on the fourth connection portion, the fourth transmission member extending from the fourth connection portion, the third transmission member and the fourth transmission member are arranged opposite to each other and are respectively located on both sides of the plane where the rotating shaft is located; and The roll stabilization device also includes an additional stabilization adjustment structure, which includes at least one elastic module and is elastically connected to the third transmission member and the fourth transmission member. When the third transmission member and the fourth transmission member move closer to or away from each other as the first swing arm and the second swing arm rotate, the additional stabilization adjustment structure applies an elastic force to the third transmission member and the fourth transmission member to counteract the relative movement.

13. The roll stabilization device according to claim 12, wherein: The additional stabilizing and adjusting structure is the same as the stabilizing and adjusting structure.

14. A vehicle comprising the roll stabilization device according to any one of claims 1 to 13.

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