Suspension mechanism and vehicle
By introducing displacement detection and limiting structures into the suspension mechanism, the problem of elastic element tearing under harsh working conditions is solved, thereby improving the protection of the elastic element and vibration isolation performance.
Patent Information
- Application Number
- CN202520258234.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Under harsh working conditions, the elastic element of the existing suspension mechanism is prone to tearing due to large displacement, leading to failure.
A suspension mechanism was designed, comprising a displacement detection structure and a limiting structure. By detecting the displacement of the suspension core and extending the limiting structure to contact the suspension shell when necessary, friction is generated to reduce the vibration amplitude, thereby protecting the elastic element.
It effectively reduces the vibration amplitude of the suspension core relative to the shell, reduces the tensile force of the elastic element, prevents the elastic element from tearing, and improves the vibration isolation performance of the suspension.
Smart Images
Figure CN223672273U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of vehicle, especially a kind of suspension mechanism and vehicle. BACKGROUND
[0002] Suspension can support, limit and vibration isolation to power assembly. The most important is vibration isolation performance, the direct factor that influences the vibration isolation performance of suspension is the rationality of the matching degree of the stiffness of suspension and actual road condition. Good stiffness matching can greatly reduce the proportion of engine vibration transmission to frame, and then improve the vehicle performance.
[0003] When the vehicle enters harsh working condition, power assembly occurs large displacement, since the shell and core of suspension are connected by elastic element, when core and shell occur large displacement, it can cause elastic element to tear under large stress and cause elastic element to fail.
[0004] Therefore, a suspension mechanism is needed to solve the above technical problems. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a kind of suspension mechanism and vehicle, can play the role of protecting elastic element.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] First, a kind of suspension mechanism is provided, comprising:
[0008] Suspension shell;
[0009] Suspension core, the suspension shell is movably arranged in the suspension shell along the first direction;
[0010] Elastic element, the elastic element is connected between the suspension core and the suspension shell, can provide elasticity for the suspension core in the first direction;
[0011] Displacement detection structure, set on the side wall of the suspension core, the displacement detection structure is used to detect the displacement of the suspension core in the first direction;
[0012] Limiting structure, part is arranged in the suspension core, the limiting structure can be extended out of the suspension core and the suspension shell contact.
[0013] As a preferred technical solution of the above suspension mechanism, the limiting structure includes first power piece, first linear moving piece and limiting piece, the first power piece and the first linear moving piece are arranged in the suspension core, the first power piece is fixedly connected with the limiting piece by the first linear moving piece, the limiting piece can move linearly relative to the suspension core with the first linear moving piece.
[0014] As a preferred technical scheme of the suspension mechanism, the limiting structure comprises a first power member and a limiting member, the first power member is arranged in the suspension core body, the first power member is fixedly connected with the limiting member, and the limiting member can move linearly relative to the suspension core body.
[0015] As a preferred technical scheme of the suspension mechanism, the limiting structure comprises a first connecting plate, and a plurality of limiting members are arranged on the side of the first connecting plate away from the first power member, and the first connecting plate is connected with the first power member.
[0016] As a preferred technical scheme of the suspension mechanism, the side wall of the suspension shell in contact with the limiting member is provided with a limiting groove, and the limiting groove is arranged in one-to-one correspondence with the limiting member.
[0017] As a preferred technical scheme of the suspension mechanism, the suspension mechanism further comprises a rigidity adjusting structure, and the rigidity adjusting structure is arranged in the elastic element to adjust the rigidity of the rubber.
[0018] As a preferred technical scheme of the suspension mechanism, the rigidity adjusting structure comprises a second power member, a second connecting plate and a plurality of springs, the springs are arranged in a second direction, the first end of the spring is fixedly connected with the second connecting plate, and the second end of the spring is connected with the inner wall of the elastic element.
[0019] As a preferred technical scheme of the suspension mechanism, the rigidity adjusting structure comprises a second linear moving member, and the second power member and the second connecting plate are connected through the second linear moving member.
[0020] As a preferred technical scheme of the suspension mechanism, the suspension mechanism further comprises a control switch and an ECU, the control switch, the displacement detection structure and the limiting structure are respectively connected in communication with the ECU, the control switch can send a trigger instruction to the ECU, and the ECU can trigger the limiting structure to work after receiving the trigger instruction.
[0021] In the second aspect, a vehicle is provided, comprising the suspension mechanism according to any one of the above-mentioned schemes.
[0022] The utility model at least has following beneficial effects:
[0023] The displacement detection structure is used for detecting displacement of the suspended core in the first direction, and the limiting structure works according to the displacement detected by the displacement detection structure, since the limiting structure extends to contact the suspended shell, friction force exists between the limiting structure and the suspended shell, so that the vibration amplitude of the suspended core relative to the suspended shell can be reduced, the pulling force on the elastic element is also reduced accordingly, and the elastic element can be prevented from being torn by a large pulling force, and the purpose of protecting the elastic element is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.
[0025] Figure 1 The structure diagram of the suspension mechanism provided by the embodiments of the present application is shown in the figure.
[0026] Figure 2 The first sectional view of the suspension mechanism provided by the embodiments of the present application is shown in the figure.
[0027] Figure 3 The front view of the suspension mechanism provided by the embodiments of the present application is shown in the figure.
[0028] Figure 4 The second sectional view of the suspension mechanism provided by the embodiments of the present application is shown in the figure.
[0029] In the figure:
[0030] 1, suspended shell; 2, suspended core; 3, elastic element; 4, displacement detection structure; 5, limiting structure; 51, first power element; 52, first linear moving element; 53, limiting element; 6, stiffness adjusting structure; 61, second power element; 62, second connecting plate; 63, spring. DETAILED DESCRIPTION
[0031] The present application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all the structures.
[0032] In the description of the utility model, unless another definite provision and limitation, the term "connect", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0034] In the description of the embodiment, the terms "on", "under", "right", etc.Orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0035] In the prior art, when the vehicle is in harsh working conditions, the large displacement of the power assembly will tear the elastic element (i.e. rubber body).Therefore, the utility model embodiment provides a suspension mechanism, which can play a role in protecting the elastic element.
[0036] As shown in Figure 1 And Figure 2 The suspension mechanism includes a suspension housing 1, a suspension core 2, an elastic element 3, a displacement detection structure 4 and a limiting structure 5, the suspension housing 1 is movably arranged in the suspension housing 1 along the first direction, the elastic element 3 is connected between the suspension core 2 and the suspension housing 1, and can provide elasticity for the suspension core 2 in the first direction;The displacement detection structure 4 is arranged on the side wall of the suspension core 2, and the displacement detection structure 4 is used for detecting the displacement of the suspension core 2 in the first direction;The limiting structure 5 is partially arranged in the suspension core 2, and the limiting structure 5 can be extended out of the suspension core 2 and contact the suspension housing 1.
[0037] The displacement detection structure 4 is used for detecting the displacement of the suspended core 2 in the first direction, and the limiting structure 5 works according to the displacement detected by the displacement detection structure 4. Since the limiting structure 5 extends to contact the suspended shell 1, the friction between the limiting structure 5 and the suspended shell 1 is generated, so that the vibration amplitude of the suspended core 2 relative to the suspended shell 1 is reduced. After the vibration amplitude is reduced, the pulling force of the elastic element 3 is also reduced, thereby preventing the elastic element 3 from being torn by a larger pulling force, and achieving the purpose of protecting the elastic element 3.
[0038] For example, the displacement detection result is a displacement sensor, and the specific structure of the displacement sensor is prior art, which will not be described in detail. The suspension mechanism provided by the utility model detects the displacement of the suspended core 2 in the first direction through the displacement sensor, and can control the limiting structure 5 to pop out to protect the elastic element 3 in the limit working condition, thereby providing protection for the elastic element 3 in the first direction, and adjusting the suspension stiffness according to the working condition.
[0039] As shown in Figure 2 Specifically, the limiting structure 5 includes a first power element 51, a first linear moving element 52 and a limiting element 53. The first power element 51 and the first linear moving element 52 are arranged in the suspended core 2, the first power element 51 is fixedly connected with the limiting element 53 through the first linear moving element 52, and the limiting element 53 can move linearly relative to the suspended core 2 along with the first linear moving element 52. For example, the first linear moving element 52 is a screw nut structure, and the first power element 51 is an electric motor. The electric motor is connected with the screw nut structure, so that the screw nut structure can drive the limiting element 53 to move linearly, thereby achieving the purpose of moving the limiting element 53 to the suspended shell 1 and realizing mutual contact limiting between the limiting element 53 and the suspended shell 1.
[0040] In other embodiments, the limiting structure 5 includes a first power element 51 and a limiting element 53. The first power element 51 is arranged in the suspended core 2, and the first power element 51 is fixedly connected with the limiting element 53. The limiting element 53 can move linearly relative to the suspended core 2. For example, the first power element 51 includes an air cylinder, and the air cylinder is connected with the limiting element 53 to drive the limiting element 53 to move linearly. In this way, the limiting element 53 can be moved to the suspended shell 1, and the limiting element 53 and the suspended shell 1 can realize mutual contact limiting.
[0041] In order to increase the friction between the limiting member 53 and the suspension shell 1, and increase the vibration amplitude of the suspension core 2 relative to the suspension shell 1, in some embodiments, the limiting structure 5 further comprises a first connecting plate, and the plurality of limiting members 53 are arranged on the side of the first connecting plate away from the first power member 51, and the first connecting plate is connected with the first power member 51. In this way, the first connecting plate moves linearly under the action of the first power member 51 to drive the plurality of limiting members 53 to move towards the suspension shell 1 at the same time, and the purpose of contacting the plurality of limiting members 53 with the suspension shell 1 is achieved, so that the suspension core 2 is prevented from moving with a large amplitude, and the elastic element 3 is prevented from being pulled and torn. The limiting member 53 moves in the third direction, and the first direction is perpendicular to the third direction.
[0042] In other embodiments, the side wall of the suspension shell 1 in contact with the limiting member 53 is provided with a limiting groove, the limiting member 53 extends into the limiting groove and is blocked from moving by the groove wall of the limiting groove, so that the suspension core 2 is prevented from moving with a large amplitude, the elastic element 3 is prevented from being pulled and torn, and the elastic element 3 is protected. Further, the limiting groove and the limiting member 53 are one-to-one corresponding, so as to further reduce the probability of the elastic element 3 being torn.
[0043] For example, the first power member 51 is defined as an electric motor, and the first linear moving member 52 is a lead screw nut. A displacement sensor is installed on the side of the suspension core 2. After the power assembly is installed, the displacement sensor records the initial displacement value of the suspension core 2 and the suspension shell 1. When the vehicle drives into a harsh working condition, the power assembly moves a large displacement. At this time, the displacement sensor detects that the suspension core 2 and the suspension shell 1 move a large displacement, sends a signal to the motor controller in the suspension core 2, the motor controller sends a control signal to the drive motor in the core, controls the limiting member 53 at the output end of the motor to pop out, and contact the suspension shell 1 to limit the suspension core 2 in the third direction. When the limiting member 53 contacts the suspension shell 1, the reaction force received can offset a part of the rubber stress, thereby protecting the rubber.
[0044] In some embodiments, as shown in Figure 1 , the suspension mechanism further comprises a stiffness adjusting structure 6 arranged in the elastic element 3 to adjust the stiffness of the rubber body. When the vehicle drives on a highway or other road conditions, the vibration of the power assembly is small, and the vibration isolation rate is low. At this time, the overall stiffness of the suspension is increased. When the vehicle drives on a poorly maintained road, a coal road or other poor working conditions, the power assembly vibrates greatly, and the vibration isolation rate is high. At this time, the overall stiffness of the suspension is reduced to reduce the vibration of the power assembly transmitted to the vehicle frame and improve the vibration isolation rate.
[0045] As shown in Figure 1 , Figure 3 , and Figure 4As shown, specifically, the rigidity adjusting structure 6 includes a second power member 61, a second connecting plate 62, and a plurality of springs 63 arranged along a second direction, the first ends of the springs 63 being fixedly connected with the second connecting plate 62, and the second ends of the springs 63 being connected with the inner wall of the elastic element 3. When the automobile is running on a highway or other road conditions, at this time, the power assembly vibration is small, the requirement for the isolation rate is low, most of the springs 63 play a supporting role, and the overall rigidity of the suspension is increased; when the automobile is running on a poor road, such as a coal road, at this time, the power assembly vibration is large, and the requirement for the isolation rate is high, at this time, the second power member 61 controls part of the springs 63 to be compressed, the overall rigidity of the suspension is reduced, the vibration of the power assembly transmitted to the frame is reduced, and the isolation rate is improved. The first direction and the second direction are arranged at an acute angle.
[0046] Further, in order to achieve the compression or elongation of the plurality of springs 63, the rigidity adjusting structure 6 includes a second linear moving member, and the second power member 61 and the second connecting plate 62 are connected through the second linear moving member. In this way, the second power member 61 can be connected with the plurality of springs 63 at the same time.
[0047] Specifically, the elastic element 3 is a rubber body, the second power member 61 is a motor, and the second linear moving member is a lead screw nut.
[0048] A plurality of springs 63 are installed in the rubber body, and the second power member 61 and the rubber body are connected through vulcanization. When the automobile is running on a highway or other road conditions, at this time, the power assembly vibration is small, the requirement for the isolation rate is low, the spring 63 is in normal contact with the rubber body, the rigidity of the spring 63 is large, and the overall rigidity of the suspension is large; when the automobile is running on a poor road, such as a coal road, at this time, the power assembly vibration is large, and the requirement for the isolation rate is high. At this time, the driver operates the button in the cab, controls the motor controller, the motor controller controls the forward rotation of the motor, drives the lead screw nut to rotate, at this time, the second connecting plate 62 moves horizontally in the second direction, the rigidity of the spring 63 is reduced, the overall rigidity of the suspension mechanism is reduced, the vibration of the power assembly transmitted to the frame is reduced, and the isolation rate is improved, when passing through the poor road section, the driver can operate the button, the motor controller controls the reverse rotation of the motor, and the second connecting plate 62 moves horizontally in the opposite direction, the rigidity of the spring 63 is increased, and the rigidity of the suspension mechanism is improved.
[0049] The spring 63 is arranged in the rubber body and the suspension core 2, when the automobile runs on a good road condition such as a highway, the power assembly vibrates less, the vibration isolation rate is low, the spring 63 supports, and the overall rigidity of the suspension is increased; when the automobile runs on a poor road condition such as a broken road or a coal road, the power assembly vibrates more, the vibration isolation rate is high, at this time, the motor controller controls the motor to rotate in the positive direction, drives the screw nut to rotate, the connecting plate moves in the second direction, the rigidity of the spring 63 is reduced, the overall rigidity of the suspension is reduced, the vibration of the power assembly transmitted to the vehicle frame is reduced, and the vibration isolation rate is improved.
[0050] The suspension mechanism further comprises a control switch and an ECU, the control switch and the displacement detection structure 4 are in communication connection with the ECU, and the control switch can send a trigger instruction to the ECU; after the ECU receives the trigger instruction, the ECU can trigger the limiting structure 5 to work.
[0051] The embodiment of the utility model further provides a vehicle which comprises the suspension mechanism provided by the embodiment of the utility model. The suspension mechanism comprises a limiting structure 5, the displacement detection structure 4 is used for detecting the displacement of the suspension core 2 in the first direction, and the limiting structure 5 works according to the displacement detected by the displacement detection structure 4. Since the limiting structure 5 extends out of the suspension core 2 and contacts the suspension shell 1, friction exists between the limiting structure 5 and the suspension shell 1, so that the vibration amplitude of the suspension core 2 relative to the suspension shell 1 can be reduced. After the vibration amplitude is reduced, the pulling force on the elastic element 3 is also reduced, so that the elastic element 3 can be prevented from being torn by a large pulling force, and the purpose of protecting the elastic element 3 is achieved.
[0052] Since the suspension mechanism is provided, the vehicle of the embodiment of the utility model has all the advantages and beneficial effects of the above-mentioned embodiments, which will not be repeated here.
[0053] In addition, the above-mentioned are only preferred embodiments of the utility model and the technical principles applied. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the protection scope of the utility model. Therefore, although the utility model has been described in more detail through the above embodiments, the utility model is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the utility model, and the scope of the utility model is determined by the appended claims.
Claims
1. A suspension mechanism, characterized in that, include: Suspension housing (1); Suspension core (2), the suspension housing (1) is movably disposed on the suspension housing (1) along a first direction; An elastic element (3) is connected between the suspension core (2) and the suspension housing (1) and is capable of providing elasticity to the suspension core (2) in a first direction; A displacement detection structure (4) is disposed on the side wall of the suspension core (2), and the displacement detection structure (4) is used to detect the displacement of the suspension core (2) in a first direction; The limiting structure (5) is partially disposed inside the suspension core (2), and the limiting structure (5) can extend out of the suspension core (2) and contact the suspension housing (1).
2. The suspension mechanism according to claim 1, characterized in that, The limiting structure (5) includes a first power member (51), a first linear moving member (52), and a limiting member (53). The first power member (51) and the first linear moving member (52) are disposed inside the suspension core (2). The first power member (51) is fixedly connected to the limiting member (53) through the first linear moving member (52). The limiting member (53) can move linearly relative to the suspension core (2) with the first linear moving member (52).
3. The suspension mechanism according to claim 1, characterized in that, The limiting structure (5) includes a first power component (51) and a limiting component (53). The first power component (51) is disposed inside the suspension core (2). The first power component (51) is fixedly connected to the limiting component (53). The limiting component (53) can move linearly relative to the suspension core (2).
4. The suspension mechanism according to claim 2 or 3, characterized in that, The limiting structure (5) includes a first connecting plate, and a plurality of limiting members (53) are arranged on the side of the first connecting plate away from the first power member (51). The first connecting plate is connected to the first power member (51).
5. The suspension mechanism according to claim 2 or 3, characterized in that, The side wall of the suspension housing (1) that contacts the limiting member (53) is provided with a limiting groove, and the limiting groove is provided in a one-to-one correspondence with the limiting member (53).
6. The suspension mechanism according to claim 1, characterized in that, The suspension mechanism further includes a stiffness adjustment structure (6), which is disposed within the elastic element (3) to adjust the stiffness of the elastic element (3).
7. The suspension mechanism according to claim 6, characterized in that, The stiffness adjustment structure (6) includes a second power component (61), a second connecting plate (62), and a plurality of springs (63). The plurality of springs (63) are arranged along a second direction. The first end of the spring (63) is fixedly connected to the second connecting plate (62), and the second end of the spring (63) is connected to the inner wall of the elastic element (3).
8. The suspension mechanism according to claim 7, characterized in that, The stiffness adjustment structure (6) includes a second linear moving member, and the second power member (61) is connected to the second connecting plate (62) through the second linear moving member.
9. The suspension mechanism according to claim 1, characterized in that, The suspension mechanism also includes a control switch and an ECU. The control switch, the displacement detection structure (4), and the limiting structure (5) are respectively connected to the ECU. The control switch can send a trigger command to the ECU. After receiving the trigger command, the ECU can trigger the limiting structure (5) to work.
10. A vehicle, characterized in that, Includes the suspension mechanism as described in any one of claims 1-9.