Suspension device and vehicle

Abstract

The suspension device comprises an outer framework, a first main spring, a first installation piece, a second main spring, a second installation piece and a driving piece, the outer framework is suitable for being connected with one of a vehicle frame and a power assembly, the first main spring is arranged on the outer framework, and the second main spring is arranged on the second installation piece. The first mounting piece is arranged on the first main spring and is suitable for being connected with the other one of the frame and the power assembly, the second main spring is arranged on the outer framework and is spaced from the first main spring, the rigidity of the first main spring is different from that of the second main spring, and the second mounting piece is movably arranged on the second main spring; and the driving piece is in transmission connection with the second mounting piece and drives the second mounting piece to be selectively connected with or disconnected from the other one of the frame and the power assembly. According to the arrangement, when the suspension load is small under the daily commuting condition, the rigidity of the suspension is reduced, so that the comfort of the vehicle can be improved, when the suspension load is large under the cross-country condition, the rigidity of the suspension is increased, displacement of a power assembly is restrained, and the reliability of the suspension can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension device and a vehicle. Background Art

[0002] At present, with the development of the automobile industry and the improvement of people's living standards, users have higher and higher requirements for vehicle quality. Off-road and self-driving tours are gradually entering people's lives, and the demand for vehicle off-road capabilities is increasing. Therefore, vehicles need to take into account both daily commuting comfort and durability in off-road conditions.

[0003] In the related technology, the suspension system of new energy off-road vehicles adopts the traditional motor suspension structure, which makes the suspension performance unadjustable. The urban and high-speed working conditions require the suspension to have low stiffness and good vibration isolation, and to isolate the external vibration and noise from entering the vehicle to the maximum extent. The off-road working conditions require the suspension to have a large stiffness limiting capacity and reliability. Therefore, the traditional motor suspension structure cannot take into account both working conditions at the same time. The traditional motor suspension is usually a rubber bushing structure with a simple structure, consisting of a rubber main spring and a metal outer frame, but the performance cannot be adjusted, so it is impossible to take into account both low stiffness vibration isolation and high stiffness reliability. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a suspension device that can adapt to different working conditions, thereby improving the comfort and reliability of the vehicle.

[0005] According to the suspension device of the utility model, it includes: an exoskeleton, a first main spring, a first mounting member, a second main spring, a second mounting member and a driving member, the exoskeleton is suitable for connecting with one of the frame and the powertrain, the first main spring is arranged on the exoskeleton, the first mounting member is arranged on the first main spring and is suitable for connecting with the other of the frame and the powertrain, the second main spring is arranged on the exoskeleton and is spaced apart from the first main spring, the first main spring and the second main spring have different stiffnesses, the second mounting member is movably arranged on the second main spring, and the driving member is transmission-connected with the second mounting member and drives the second mounting member to be suitable for selectively connecting and disconnecting with the other of the frame and the powertrain.

[0006] According to the suspension device of the utility model, the first main spring and the second main spring with different stiffness are arranged on the outer frame, so that the suspension device can adapt to different working conditions, and the first mounting member connects the first main spring and the frame, and the driving member and the second mounting member connect the second main spring, so that the suspension device can use the first main spring, or use the first main spring and the second main spring together. Such an arrangement can reduce the stiffness of the suspension device when the load of the suspension device is small in daily commuting conditions, thereby improving the comfort of the vehicle, and increase the stiffness of the suspension device and suppress the displacement of the powertrain when the load of the suspension device is large in off-road conditions, thereby improving the reliability of the suspension device.

[0007] In some examples of the present invention, an installation space is formed between the first main spring and the second main spring, the installation space is used to accommodate the connection bracket of the frame and the other one of the powertrain, and the second mounting member is driven to selectively extend into and out of the installation space.

[0008] In some examples of the present invention, the exoskeleton includes: a first frame, a second frame and a third frame, the first main spring is arranged on the first frame, the second frame is arranged opposite to the first frame and together form the installation space, the second main spring is arranged on the second frame, the third frame is connected between the first frame and the second frame and extends in a direction away from the installation space, and the third frame is used to connect to the frame and one of the powertrain.

[0009] In some examples of the present invention, the driving member is connected to a transmission mechanism, the second mounting member is provided with a transmission part, and the transmission mechanism and the transmission part cooperate to convert the rotational motion of the driving member into the linear motion of the second mounting member.

[0010] In some examples of the present invention, the transmission mechanism includes a gear, the transmission part is a rack, the rack extends along the linear motion direction of the second mounting member, and the gear is meshed with the rack.

[0011] In some examples of the present invention, the transmission mechanism includes a nut, which limits the position of the nut in the linear motion direction of the second mounting member, the second mounting member is circumferentially limited with the second main spring, the transmission part is a screw rod, and the nut is threadedly matched with the screw rod.

[0012] In some examples of the present invention, the first main spring is provided with a hollow hole so that the stiffness of the first main spring is smaller than the stiffness of the second main spring.

[0013] In some examples of the utility model, the suspension device also includes: a first inner frame and a second inner frame, the first inner frame is arranged on the first main spring, the first mounting member is arranged on the first inner frame, the second inner frame is arranged on the second main spring, and the second mounting member is movably arranged on the second inner frame; wherein, a side of the first inner frame facing the second inner frame protrudes from the first main spring, and a side of the second inner frame facing the first inner frame protrudes from the second main spring.

[0014] In some examples of the present invention, the suspension device further includes: a mode selector and a controller, and the controller is electrically connected to the mode selector and the driving member respectively.

[0015] The vehicle according to the utility model comprises: the suspension device mentioned above.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the first angle structure of the suspension device according to an embodiment of the utility model;

[0019] Figure 2 is a schematic diagram of the structure of the suspension device according to a second angle of the embodiment of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of a suspension device according to an embodiment of the utility model;

[0021] Figure 4 It is a partial cross-sectional view of a suspension device according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Suspension device;

[0024] 2. External frame; 21. First frame; 22. Second frame; 23. Third frame; 24. Installation space; 3. First main spring; 4. First mounting member; 5. Second main spring; 6. Second mounting member; 61. Rack; 7. Driving member; 71. Gear; 8. First internal frame; 9. Second internal frame; 10. Mode selector; 11. Controller; 12. Connecting bracket. DETAILED DESCRIPTION

[0025] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0026] Reference below Figure 1-Figure 4 A suspension device 1 according to an embodiment of the present invention is described, and the suspension device 1 is applied in a vehicle.

[0027] like Figure 1-Figure 4 As shown, the suspension device 1 according to the utility model includes: an exoskeleton 2, a first main spring 3, a first mounting member 4, a second main spring 5, a second mounting member 6 and a driving member 7, the exoskeleton 2 is suitable for connecting with one of the frame and the powertrain, the first main spring 3 is arranged on the exoskeleton 2, the first mounting member 4 is arranged on the first main spring 3 and is suitable for connecting with the other of the frame and the powertrain, the second main spring 5 is arranged on the exoskeleton 2 and is spaced apart from the first main spring 3, the first main spring 3 and the second main spring 5 have different stiffnesses, the second mounting member 6 is movably arranged on the second main spring 5, and the driving member 7 is transmission-connected with the second mounting member 6 and drives the second mounting member 6 to be suitable for selectively connecting and disconnecting with the other of the frame and the powertrain.

[0028] It can be understood that the exoskeleton 2, the first main spring 3, the first mounting member 4, the second main spring 5, the second mounting member 6 and the driving member 7 constitute the main structure of the suspension device 1. The first main spring 3, the first mounting member 4, the second main spring 5 and the second mounting member 6 are arranged in the exoskeleton 2, so that the exoskeleton 2 can protect the first main spring 3, the first mounting member 4, the second main spring 5 and the second mounting member 6, thereby extending the service life of the first main spring 3, the first mounting member 4, the second main spring 5 and the second mounting member 6. The driving member 7 is connected to the outside of the exoskeleton 2, so as to facilitate the installation and disassembly, as well as the repair and maintenance of the driving member 7. The exoskeleton 2 and The first mounting member 4 and the first main spring 3 are connected to the vehicle frame, so that the suspension device 1 can be connected to the vehicle frame, the first mounting member 4 and the first main spring 3 are located on one side of the outer frame 2, the first mounting member 4 is connected to the powertrain, so that the suspension device 1 can be connected to the powertrain, the second mounting member 6 and the second main spring 5 are located on the other side of the outer frame 2, so that the first main spring 3 and the second main spring 5 can be arranged at intervals, the driving member 7 can transmit the driving force to the second mounting member 6, and a connecting hole is set at one end of the connecting bracket 12, so that the second mounting member 6 can extend into the connecting hole, and then the vehicle can selectively use the first main spring 3 and the second main spring 5 according to different working conditions. For example, the first main spring 3 and the second main spring 5 are rubber structures, so that the performance of the suspension device 1 can be improved.

[0029] Therefore, by arranging the first main spring 3 and the second main spring 5 with different stiffness on the exoskeleton 2, the suspension device 1 can be adapted to different working conditions, and the first mounting member 4 connects the first main spring 3 and the frame, and the driving member 7 and the second mounting member 6 connect the second main spring 5, so that the suspension device 1 can use the first main spring 3, or use the first main spring 3 and the second main spring 5 together. Such an arrangement can reduce the stiffness of the suspension device 1 when the load of the suspension device 1 is small in daily commuting conditions, thereby improving the comfort of the vehicle, and increase the stiffness of the suspension device 1 and suppress the displacement of the powertrain when the load of the suspension device 1 is large in off-road conditions, thereby improving the reliability of the suspension device 1.

[0030] Among them, Figure 1 and Figure 2 As shown, an installation space 24 is formed between the first main spring 3 and the second main spring 5. The installation space 24 is used to accommodate the connection bracket 12 of the other one of the frame and the powertrain, and drive the second installation member 6 to selectively extend into and out of the installation space 24. That is to say, the first main spring 3 and the second main spring 5 are respectively arranged on both sides of the outer frame 2, so that a gap can be formed between the first main spring 3 and the second main spring 5, and the gap forms the installation space 24. Such an arrangement can make the installation space 24 accommodate the connection bracket 12 of the frame or the powertrain, so as to facilitate the connection of the suspension device 1 with the frame or the powertrain. One end of the connection bracket 12 with a connection hole is located in the installation space 24, and the driving member 7 can drive the second installation member 6 to extend and retract in the installation space 24, so that the second installation member 6 can selectively extend into the connection hole on the connection bracket 12, and then the vehicle can selectively use the first main spring 3 and the second main spring 5 according to different working conditions.

[0031] In addition, if Figure 1-Figure 3As shown, the exoskeleton 2 includes: a first skeleton 21, a second skeleton 22 and a third skeleton 23, the first main spring 3 is arranged on the first skeleton 21, the second skeleton 22 is arranged opposite to the first skeleton 21 and together form an installation space 24, the second main spring 5 is arranged on the second skeleton 22, the third skeleton 23 is connected between the first skeleton 21 and the second skeleton 22 and extends in a direction away from the installation space 24, and the third skeleton 23 is used to connect to one of the frame and the powertrain. It can be understood that the first skeleton 21, the second skeleton 22 and the third skeleton 23 constitute the main structure of the exoskeleton 2, the first main spring 3 is located in the first skeleton 21, and the second main spring 5 is located in the second skeleton 22, so that the first skeleton 21 can protect the first main spring 3, and the second skeleton 22 can protect the second main spring 5, thereby extending the service life of the first main spring 3 and the second main spring 5, and the first skeleton 21 and the second skeleton 22 are arranged at intervals, so that an installation space 24 can be formed between the first skeleton 21 and the second skeleton 22, and the third skeleton 23 is connected to one end of the first skeleton 21 and the second skeleton 22, and the third skeleton 23 extends away from the installation space 24, so as to facilitate the connection of the exoskeleton 2 with the frame or powertrain, and then facilitate the connection of the suspension device 1 with the frame or powertrain.

[0032] In addition, if Figure 1 and Figure 2 As shown, the driving member 7 is connected with a transmission mechanism, and the second mounting member 6 is provided with a transmission part. The transmission mechanism and the transmission part cooperate with each other, so that the rotational motion of the driving member 7 can be converted into the linear motion of the second mounting member 6. In other words, the transmission mechanism and the second mounting member 6 cooperate with each other, and such an arrangement can enable the driving force of the driving member 7 to be transmitted to the second mounting member 6 through the transmission mechanism and the transmission part, so that the second mounting member 6 can be moved, and further the second mounting member 6 can be selectively extended into the connection hole on the connection bracket 12.

[0033] Among them, Figure 1 and Figure 4 As shown, the transmission mechanism includes a gear 71, and the transmission part is a rack 61, the rack 61 extends along the linear motion direction of the second mounting member 6, and the gear 71 meshes with the rack 61. It can be understood that the transmission mechanism is provided with the gear 71, and the transmission part is provided with the rack 61, and the gear 71 and the rack 61 mesh with each other, so that the transmission mechanism can move relative to the transmission part, and the rack 61 extends along the linear motion direction of the second mounting member 6, so that the rotational motion of the gear 71 can be converted into the linear motion of the rack 61, and then the second mounting member 6 can move in the linear direction.

[0034] Alternatively, if Figure 1 and Figure 2As shown, the transmission mechanism includes a nut, the transmission mechanism limits the nut in the linear motion direction of the second mounting member 6, the second mounting member 6 is limited in the circumferential direction with the second main spring 5, the transmission part is a screw, and the nut is threadedly matched with the screw. In other words, the transmission mechanism is provided with a nut, the transmission part is provided with a screw, the nut and the screw thread are matched, so that the transmission mechanism can move relative to the transmission part, and the second mounting member 6 is limited in the circumferential direction with the second main spring 5, and the screw moves along the linear direction of the second mounting member 6, so that the movement of the screw relative to the nut drives the second mounting member 6 to move in the linear direction, thereby facilitating the second mounting member 6 to selectively extend into the connecting hole on the connecting bracket 12.

[0035] In particular, if Figure 2 and Figure 3 As shown, the first main spring 3 is provided with a hollow hole, so that the stiffness of the first main spring 3 can be made smaller than the stiffness of the second main spring 5, and the hollow hole can reduce the weight of the suspension device 1, so as to achieve a lightweight design of the suspension device 1. The first main spring 3 and the second main spring 5 have different stiffnesses. Such a setting can reduce the stiffness of the suspension when the suspension load is small in daily commuting conditions, thereby improving the comfort of the vehicle. When the suspension load is large in off-road conditions, the stiffness of the suspension is increased and the displacement of the powertrain is suppressed, thereby improving the reliability of the suspension.

[0036] In addition, if Figure 1-Figure 3 As shown, the suspension device 1 further includes: a first inner frame 8 and a second inner frame 9, wherein the first inner frame 8 is arranged on the first main spring 3, the first mounting member 4 is arranged on the first inner frame 8, the second inner frame 9 is arranged on the second main spring 5, and the second mounting member 6 is movably arranged on the second inner frame 9; wherein the side of the first inner frame 8 facing the second inner frame 9 protrudes from the first main spring 3, and the side of the second inner frame 9 facing the first inner frame 8 protrudes from the second main spring 5. It can be understood that the first inner frame 8 is located on the first main spring 3, and the first inner frame 8 is arranged toward the second main spring 5, the second inner frame 9 is located on the second main spring 5, and the second inner frame 9 is arranged toward the first main spring 3, so that the first inner frame 8 and the second inner frame 9 can be arranged oppositely, the first mounting member 4 is arranged on the first inner frame 8, and the second mounting member 6 can move in a linear direction relative to the second inner frame 9, so that the second mounting member 6 can selectively extend into the connecting hole on the connecting bracket 12, thereby enabling the vehicle to selectively use the first main spring 3 and the second main spring 5 according to different working conditions.

[0037] In addition, Figure 1 and Figure 2As shown, the suspension device 1 further includes: a mode selector 10 and a controller 11, and the controller 11 is electrically connected to the mode selector 10 and the driving member 7, respectively. That is, the mode selector 10 and the controller 11 are located outside the outer frame 2, and the controller 11 is connected to the driving member 7, and the mode selector 10 and the controller 11 are connected, so that the mode selector 10, the controller 11 and the driving member 7 can be connected in sequence, and then the user can control the driving member 7 by controlling the mode selector 10 and the controller 11.

[0038] Specifically, Figure 1-Figure 4 As shown, under daily commuting conditions, the driver selects the standard or economy mode, and the first mounting member 4 and the second mounting member 6 are disconnected. At this time, the first main spring 3 is involved in the work, and the second main spring 5 is not involved in the work. The suspension device 1 can achieve a state of lower stiffness and high vibration isolation, thereby reducing the vibration noise in the vehicle, and thus improving the comfort of the vehicle; under four-wheel drive or off-road conditions, the second mounting member 6 moves linearly and extends into the connecting hole on the connecting bracket 12, and a part of the first mounting member 4 is located in the connecting hole extending into the connecting bracket 12. The first main spring 3 and the second main spring 5 are both involved in the work, and the stiffness of the suspension device 1 is improved, thereby improving the reliability of the suspension device 1, and thus improving the safety performance of the vehicle.

[0039] The vehicle according to the embodiment of the utility model comprises: the suspension device 1 of the above embodiment, by arranging the first main spring 3 and the second main spring 5 with different stiffness on the outer frame 2, so that the suspension device 1 can adapt to different working conditions, and the first mounting member 4 connects the first main spring 3 and the frame, the driving member 7 and the second mounting member 6 connect the second main spring 5, so that the suspension device 1 can use the first main spring 3, or use the first main spring 3 and the second main spring 5 together. Such an arrangement can reduce the stiffness of the suspension device 1 when the load of the suspension device 1 is small in daily commuting conditions, thereby improving the comfort of the vehicle, and increase the stiffness of the suspension device 1 and suppress the displacement of the powertrain when the load of the suspension device 1 is large in off-road conditions, thereby improving the reliability of the suspension device 1.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In the description of the present utility model, "plurality" means two or more. In the description of the present utility model, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. In the description of the present utility model, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension device, characterized in that: include: An exoskeleton (2), the exoskeleton (2) being adapted to be connected to one of a vehicle frame and a powertrain; A first main spring (3), the first main spring (3) being arranged on the outer frame (2); A first mounting member (4), the first mounting member (4) being disposed on the first main spring (3) and being adapted to be connected to the other of the vehicle frame and the power assembly; a second main spring (5), the second main spring (5) being arranged on the outer frame (2) and spaced apart from the first main spring (3), the first main spring (3) and the second main spring (5) having different stiffnesses; a second mounting member (6), the second mounting member (6) being movably disposed on the second main spring (5); A driving member (7) is connected to the second mounting member (6) in a transmission manner and drives the second mounting member (6) to be selectively connected to and disconnected from the other of the vehicle frame and the powertrain.

2. The suspension device according to claim 1, characterized in that: An installation space (24) is formed between the first main spring (3) and the second main spring (5), and the installation space (24) is used to accommodate the vehicle frame and the other connecting bracket (12) in the powertrain, and the second mounting member (6) is driven to selectively extend into and out of the installation space (24).

3. The suspension device according to claim 2, characterized in that: The exoskeleton (2) comprises: A first frame (21), wherein the first main spring (3) is arranged on the first frame (21); a second frame (22), the second frame (22) and the first frame (21) being arranged opposite to each other and jointly forming the installation space (24), the second main spring (5) being arranged on the second frame (22); A third frame (23), the third frame (23) is connected between the first frame (21) and the second frame (22) and extends in a direction away from the installation space (24), and the third frame (23) is used to connect to the frame and one of the powertrain.

4. The suspension device according to claim 1, characterized in that: The driving member (7) is connected to a transmission mechanism, and the second mounting member (6) is provided with a transmission part. The transmission mechanism and the transmission part cooperate in transmission to convert the rotational motion of the driving member (7) into the linear motion of the second mounting member (6).

5. The suspension device according to claim 4, characterized in that: The transmission mechanism comprises a gear (71), the transmission part is a rack (61), the rack (61) extends along the linear motion direction of the second mounting member (6), and the gear (71) meshes with the rack (61).

6. The suspension device according to claim 4, characterized in that: The transmission mechanism comprises a nut, and the transmission mechanism limits the position of the nut in the linear motion direction of the second mounting member (6). The second mounting member (6) and the second main spring (5) are circumferentially limited. The transmission part is a screw rod, and the nut is threadedly matched with the screw rod.

7. The suspension device according to claim 1, characterized in that: The first main spring (3) is provided with a hollow hole so that the rigidity of the first main spring (3) is smaller than the rigidity of the second main spring (5).

8. The suspension device according to claim 1, characterized in that: Also includes: A first inner frame (8), wherein the first inner frame (8) is arranged on the first main spring (3), and the first mounting member (4) is arranged on the first inner frame (8); A second inner frame (9), wherein the second inner frame (9) is arranged on the second main spring (5), and the second mounting member (6) is movably arranged on the second inner frame (9); The side of the first inner frame (8) facing the second inner frame (9) protrudes from the first main spring (3), and the side of the second inner frame (9) facing the first inner frame (8) protrudes from the second main spring (5).

9. The suspension device according to claim 1, characterized in that: Also includes: Mode selector (10); A controller (11), wherein the controller (11) is electrically connected to the mode selector (10) and the driving member (7) respectively.

10. A vehicle, characterized in that: include: The suspension device (1) according to any one of claims 1 to 9.

Images