Stabilizer bar structure, suspension system and vehicle
By designing a stabilizer bar structure with adaptive stiffness adjustment, the problem of unadjustable stabilizer bar stiffness was solved, achieving a balance between comfort and handling under different road conditions.
Patent Information
- Application Number
- CN202422960808.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing stabilizer bar stiffness is not adjustable, resulting in poor suspension comfort when driving on flat roads and insufficient handling when driving on sloping roads.
A stabilizer bar structure is designed, including a first stabilizer bar, a second stabilizer bar, an outer shell, and an inner cylinder. The stiffness is adaptively adjusted through oil passages and protrusions on the inner cylinder, dynamically adjusting the stiffness according to the vehicle's driving state and road conditions.
On flat roads, reducing stiffness improves suspension comfort, while effectively transmitting torsional stiffness under roll conditions ensures vehicle handling and stability.
Smart Images
Figure CN223590498U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a car stabilizer bar technical field especially relates to a stabilizer bar structure, suspension system and vehicle. BACKGROUND
[0002] Stabilizer bar, also known as transverse stabilizer bar or roll bar, is an important component in the automobile suspension system, and its main function is to improve the stability of the automobile during driving, when the vehicle body only makes vertical movement, the deformation of both sides of the suspension is the same, and the stabilizer bar does not work. But when the vehicle turns, the body roll leads to the inconsistent bounce of both sides of the suspension, and the outer side of the suspension will press the stabilizer bar, so that the stabilizer bar is twisted, and the elasticity of the rod body will prevent the wheel from lifting, so as to keep the vehicle body balanced as much as possible.
[0003] The existing stabilizer bar stiffness is not adjustable, and the suspension stiffness is generally adjusted to increase the stabilizer bar stiffness to ensure the control of the vehicle body during roll, although the suspension control performance is improved on the roll road, but when driving on the flat road, the excessive stabilizer bar stiffness often leads to insufficient suspension stroke, which reduces the comfort of the whole vehicle. Therefore, it is urgent to develop a stabilizer bar structure that can adaptively adjust the stiffness to improve the comfort of the whole vehicle. SUMMARY
[0004] The utility model embodiment provides a stabilizer bar structure, which can reduce the stabilizer bar stiffness on the flat road, and effectively transmit the torsional stiffness of the suspension under the roll working condition, so as to ensure the handling performance of the whole vehicle.
[0005] In order to solve the above problems, the utility model discloses a stabilizer bar structure in the first aspect, which comprises:
[0006] The first stabilizer bar, the second stabilizer bar, the shell and the inner cylinder are connected at one end of the shell; the inner cylinder is tightly abutted on the inner wall of the shell on both sides, and the oil liquid through hole is arranged on the inner cylinder; one end of the first stabilizer bar passes through the other end of the shell and is arranged in the inner cylinder, and the other end is arranged out of the shell; the one end of the first stabilizer bar arranged in the inner cylinder has a protruding part, and a plurality of accommodating cavities are formed between the inner wall of the outer shell and the inner wall of the inner cylinder and the first stabilizer bar; the plurality of accommodating cavities are filled with oil liquid; when the torsion angle between the first stabilizer bar and the second stabilizer bar is not greater than the preset angle threshold, the oil liquid flows in the plurality of accommodating cavities through the oil liquid through hole; when the torsion angle between the first stabilizer bar and the second stabilizer bar is greater than the preset angle threshold, the protruding part stops the oil liquid from flowing.
[0007] In some embodiments of the utility model, the inner cylinder comprises a first sub-inner cylinder and a second sub-inner cylinder,
[0008] The first sub-inner cylinder, the second sub-inner cylinder and the shell are coaxially arranged.
[0009] In some embodiments of the utility model, the protruding part includes an annular protruding part arranged around the first stabilizing rod, and a first protruding part arranged along the length direction of the first stabilizing rod.
[0010] One side of the first protruding part is connected with the annular protruding part, and the other side is flush with the side surface of the first stabilizing rod.
[0011] In some embodiments of the utility model, the second sub-inner cylinder has a second protruding part on the inner wall, the second protruding part is arranged at one end of the inner cylinder close to the second stabilizing rod, and the length of the second protruding part is the same as that of the first protruding part.
[0012] In some embodiments of the utility model, the accommodating cavities formed between the outer surface of the first stabilizing rod and the inner wall of the second sub-inner cylinder are respectively a third cavity, a fourth cavity and a fifth cavity.
[0013] The one end close to the second stabilizing rod is the third cavity and the fourth cavity, and the one end away from the second stabilizing rod is the fifth cavity; the fifth cavity is used for preventing the relative movement of the first stabilizing rod in the length direction.
[0014] In some embodiments of the utility model, the oil liquid through hole includes a first through hole, a second through hole and a third through hole; the second through hole and the third through hole are arranged on the second sub-inner cylinder, and the second through hole and the third through hole are arranged corresponding to the third cavity and the fourth cavity.
[0015] When the relative torsion occurs between the first stabilizing rod and the second stabilizing rod, the oil liquid flows through the second through hole between the second cavity and the third cavity, and the oil liquid flows through the third through hole between the second cavity and the fourth cavity.
[0016] In some embodiments of the utility model, the relative torsion angle range between the first stabilizing rod and the second stabilizing rod is positively correlated with the distance between the second through hole and the third through hole.
[0017] In some embodiments of the utility model, the accommodating cavity formed between the outer wall of the first sub-inner cylinder and the inner wall of the shell is a first cavity; and the accommodating cavity formed between the inner wall of the first sub-inner cylinder and the outer wall of the second sub-inner cylinder is a second cavity.
[0018] The first through hole is arranged on the first sub-inner cylinder.
[0019] The first sub-inner cylinder and the second sub-inner cylinder are connected with an adjusting ring, the adjusting ring is provided with a hollow part, and the position of the hollow part corresponds to the position of the first through hole; the oil liquid flows through the first through hole between the first cavity and the second cavity.
[0020] The second aspect of the utility model discloses a suspension system, including the stabilizer bar structure disclosed in the first aspect of the utility model.
[0021] The third aspect of the utility model discloses a vehicle, including the suspension system disclosed in the second aspect of the utility model.
[0022] The utility model embodiment includes the following advantages: the utility model divides stabilizer bar structure into first stabilizer bar and second stabilizer bar, first stabilizer bar and second stabilizer bar are connected through shell and inner tube, and the inner tube is arranged in the inner chamber of the shell, the inner tube is provided with through -hole, and the inner wall of the inner tube and the inner wall of the shell and the inner wall of the inner tube and the first stabilizer bar form the containing chamber, and the containing chamber is full of oil liquid, the first stabilizer bar is arranged in one end of the inner tube and has the protruding portion, when the torsion angle between first stabilizer bar and second stabilizer bar is less than or equal to the preset angle threshold value, the torsion angle of first stabilizer bar is insufficient to stop the oil liquid through -hole on the inner tube, and the oil liquid flows in the containing chamber through the oil liquid through -hole, and the torsional rigidity of stabilizer bar is low at this time, which is beneficial to the comfort of suspension, when the torsion angle between first stabilizer bar and second stabilizer bar is greater than the preset angle threshold value, the protruding portion of first stabilizer bar stops the oil liquid through -hole on the inner tube, so that the oil liquid cannot flow, the containing chamber is in the sealed state, the internal pressure of containing chamber increases, and the relative movement between first stabilizer bar and second stabilizer bar is prevented, and the torsional rigidity of stabilizer bar structure can be effectively transmitted to the suspension end at this time, and the roll control of the whole vehicle can be realized.
[0023] Through the stabilizer bar structure of the utility model, the rigidity can be dynamically adjusted according to the driving state and road conditions of the vehicle, the self-adaptive adjustment of the rigidity of the stabilizer bar is realized, the body roll is reduced, and the stability and safety of the vehicle under various driving conditions are improved. ACCURACY
[0024] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawings needed to be used in the description of the utility model embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.
[0025] Figure 1 It is the schematic diagram of the stabilizer bar structure of the utility model;
[0026] Figure 2is a sectional view of the A direction of the utility model Figure 1
[0027] Figure 3 is a sectional view of the B direction of the utility model Figure 1
[0028] Figure 4 is the front view of the first stabilizer bar in the stabilizer bar structure of the utility model
[0029] Figure 5 is the right view of the front view of the first stabilizer bar in the stabilizer bar structure of the utility model
[0030] Figure 6 is the front view of the second sub-inner cylinder in the stabilizer bar structure of the utility model
[0031] Figure 7 is the sectional view of the A direction of the second sub-inner cylinder in the stabilizer bar structure of the utility model
[0032] Figure 8 is the structural schematic view of the first sub-inner cylinder in the stabilizer bar structure of the utility model
[0033] Figure 9 is the front view of the second stabilizer bar in the stabilizer bar structure of the utility model
[0034] Reference signs:
[0035] 101-first stabilizer bar; 102-second stabilizer bar; 103-outer shell
[0036] 104-first sub-inner cylinder; 105-second sub-inner cylinder; 117-adjusting ring
[0037] 106-first through hole; 107-second through hole; 108-third through hole
[0038] 109-annular protruding part; 110-first protruding part; 111-second protruding part; 112-first cavity
[0039] 113-second cavity; 114-third cavity; 115-fourth cavity; 116-fifth cavity DETAILED DESCRIPTION
[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0041] In the description of the present application, unless otherwise explicitly specified and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or stated, the term "multiple" refers to two or more; the terms "connection", "fixation" and the like should be broadly understood, for example, "connection" can be fixed connection, or detachable connection, or integrally connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] With reference to Figures 1 to 3 The utility model provides a kind of stabilizer bar structure, comprising: first stabilizer bar 101, second stabilizer bar 102, shell 103 and inner cylinder;Shell 103 is overall cylindrical, and one end is sealedly connected with second stabilizer bar 102, and the other end is sealedly penetrated by first stabilizer bar 101;Inner cylinder is placed in shell 103, and both sides are tightly abutted to the both sides of the internal cavity space of shell 103, and oil liquid through hole is provided on the inner cylinder;First stabilizer bar 101 is placed in the one end of inner cylinder and has protruding part, and the outer wall of inner cylinder and the inner wall of shell 103 and the inner wall of inner cylinder and first stabilizer bar 101 form multiple containing chambers;Multiple containing chambers are filled with oil liquid;When the torsion angle between first stabilizer bar 101 and second stabilizer bar 102 is not greater than preset angle threshold, oil liquid flows in multiple containing chambers through oil liquid through hole;When the torsion angle between first stabilizer bar 101 and second stabilizer bar 102 is greater than preset angle threshold, protruding part stops oil liquid flow.
[0043] Specifically, with reference to Figure 2 And Figure 9 Second stabilizer bar 102 includes rod part and connecting part, connecting part is matched with the size L1 of one end of shell 103, second stabilizer bar 102 is welded with one end of shell 103 through connecting part, the connecting part of second stabilizer bar 102 forms the one end face of the internal cavity space of shell 103, the other end of shell 103 is sealedly connected with a bearing, the outer diameter of bearing is matched with the size L2 of one end of shell 103, bearing forms the other end face of the internal cavity space of shell 103, bearing is pressed to the connecting part of second stabilizer bar 102, so that the both sides of inner cylinder are tightly abutted to the both sides of the internal cavity space of shell 103.The one end of first stabilizer bar 101 is placed in inner cylinder through bearing, and the other end is penetrated from bearing.
[0044] When the vehicle is running on flat road surface or encountering irregular convex road surface, small angle relative torsion occurs between the first stabilizer bar 101 and the second stabilizer bar 102, oil flows in the plurality of accommodating cavities through the oil flow hole, the rigidity of the stabilizer bar structure is reduced, and the suspension comfort is improved; when the vehicle is running on a turning road surface, at this time, the posture of the left and right sides of the vehicle body changes greatly, the vehicle inclines, the torsion angle between the first stabilizer bar 101 and the second stabilizer bar 102 is greater than the preset angle threshold, the convex portion stops the oil flow hole to stop the oil from flowing in the plurality of accommodating cavities, so that the first stabilizer bar 101 and the second stabilizer bar 102 have resistance to continue relative torsion, at this time, the torsional rigidity of the stabilizer bar structure can be effectively transmitted to the suspension end, and the handling of the whole vehicle is guaranteed.
[0045] With reference to Figure 2 and Figure 3 In some embodiments of the utility model, the inner cylinder includes a first sub-inner cylinder 104 and a second sub-inner cylinder 105, the first sub-inner cylinder 104, the second sub-inner cylinder 105 and the shell 103 are coaxially arranged, and one end of the first stabilizer bar 101 is arranged in the second sub-inner cylinder 105.
[0046] With reference to Figure 4 and Figure 5 In some embodiments of the utility model, the convex portion includes an annular convex portion 109 arranged around the first stabilizer bar 101 and a first convex portion 110 arranged along the length direction of the first stabilizer bar 101, one side of the first convex portion 110 is connected with the annular convex portion 109, and the other side is flush with the side surface of the first stabilizer bar 101.
[0047] It can be understood that one side of the first convex portion 110 is connected with the annular convex portion 109, and the other side abuts against the inner wall of one side of the shell 103, one side of the first convex portion 110 is an arc surface, the arc surface is matched with the inner wall of the second sub-inner cylinder 105, meanwhile, the diameter of the annular convex portion 109 is matched with the inner diameter of the second sub-inner cylinder 105, and the first stabilizer bar 101 abuts against the inner wall of the second sub-inner cylinder 105 through the arc surface and the annular convex portion 109.
[0048] With reference to Figure 6 and Figure 7 In some embodiments of the utility model, the inner wall of the second sub-inner cylinder 105 is provided with a second convex portion 111, the second convex portion 111 is arranged at one end of the inner cylinder close to the second stabilizer bar 102, and the length of the second convex portion 111 is the same as that of the first convex portion 110.
[0049] It can be understood that the second protruding part 111 abuts against part of the radial side surface of the annular protruding part 109 of the first stabilizing rod 101. One side surface of the second protruding part 111 is a concave arc surface which is matched with the outer surface of the first stabilizing rod 101, and the second sub-inner cylinder 105 abuts against the first stabilizing rod 101 through the concave arc surface.
[0050] With reference to Figure 2 and Figure 3 In some embodiments of the utility model, the accommodation chamber formed between the outer surface of the first stabilizing rod 101 and the inner wall of the second sub-inner cylinder 105 is respectively a third chamber 114, a fourth chamber 115 and a fifth chamber 116; wherein the end close to the second stabilizing rod 102 is the third chamber 114 and the fourth chamber 115, and the end away from the second stabilizing rod 102 is the fifth chamber 116; the fifth chamber 116 is used for preventing the first stabilizing rod 101 from relatively moving in the length direction.
[0051] It can be understood that the fifth chamber 116 is a sealed chamber, so that the first stabilizing rod 101 and the second stabilizing rod 102 can only relatively twist and cannot relatively move in the axial direction.
[0052] In some embodiments of the utility model, the oil liquid through hole comprises a first through hole, a second through hole and a third through hole; the second through hole 107 and the third through hole 108 are arranged on the second sub-inner cylinder 105, and the second through hole 107 and the third through hole 108 are arranged corresponding to the third chamber 114 and the fourth chamber 115; when the first stabilizing rod 101 and the second stabilizing rod 102 relatively twist, the oil liquid passes through the second through hole 107 and circulates between the second chamber 113 and the third chamber 114; the oil liquid passes through the third through hole 108 and circulates between the second chamber 113 and the fourth chamber 115.
[0053] In some embodiments of the utility model, the relative twisting angle range between the first stabilizing rod 101 and the second stabilizing rod 102 is positively correlated with the distance between the second through hole 107 and the third through hole 108.
[0054] With reference to Figure 3When the relative torsion between the first stabilizer 101 and the second stabilizer 102 occurs, if the first stabilizer 101 rotates clockwise, when the first stabilizer 101 rotates to the first protruding part 110 to stop the third through hole 108, the fourth chamber 115 is in a sealed state, at this time, the oil in the fourth chamber 115 cannot flow out, the pressure in the fourth chamber 115 increases, which prevents the first stabilizer 101 from continuing to rotate clockwise, that is, prevents the relative torsion between the first stabilizer 101 and the second stabilizer 102. If the first stabilizer 101 rotates counterclockwise, when the first stabilizer 101 rotates to the first protruding part 110 to stop the second through hole 107, at this time, the third chamber 114 is in a sealed state, the oil in the third chamber 114 cannot flow out, the pressure in the third chamber 114 increases, which prevents the first stabilizer 101 from continuing to rotate counterclockwise, that is, prevents the relative torsion between the first stabilizer 101 and the second stabilizer 102.
[0055] It can be understood that the relative torsion angle range between the first stabilizer 101 and the second stabilizer 102 is limited by the distance between the second through hole 107 and the third through hole 108, that is, the relative torsion angle range between the first stabilizer 101 and the second stabilizer 102 is the angle range of the rotation of the first protruding part 110 between the second through hole 107 and the third through hole 108. If the distance between the second through hole 107 and the third through hole 108 is greater, the relative torsion angle range between the first stabilizer 101 and the second stabilizer 102 is greater, that is, the relative torsion angle range between the first stabilizer 101 and the second stabilizer 102 is positively correlated with the distance between the second through hole 107 and the third through hole 108.
[0056] It can be understood that the preset angle threshold can be set as needed and realized by the distance between the second through hole 107 and the third through hole 108.
[0057] Referring to Figure 2 and Figure 3 , the accommodation chamber formed between the outer wall of the first sub-inner cylinder 104 and the inner wall of the outer shell 103 is the first chamber 112, and the accommodation chamber formed between the inner wall of the first sub-inner cylinder 104 and the outer wall of the second sub-inner cylinder 105 is the second chamber 113. The first chamber 112 and the second chamber 113 are both filled with oil.
[0058] In some embodiments of the utility model, referring to Figure 8 , the first through hole 106 is arranged on the first sub-inner cylinder 104, and the first sub-inner cylinder 104 and the second sub-inner cylinder 105 are connected with an adjusting ring 117, the adjusting ring 117 has a hollow part, the position of the hollow part corresponds to the position of the first through hole 106, the oil flows between the first chamber 112 and the second chamber 113 through the first through hole 106, and the size of the hollow part is greater than the size of the first through hole 106.
[0059] A suspension system comprising the above-mentioned stabilizer bar structure, the stabilizer bar structure system is able to adaptively adjust the stiffness in real time according to different driving conditions and road conditions, so as to provide the best handling performance and comfort.
[0060] A vehicle comprising the above-mentioned suspension system, so that the whole vehicle has better roll stability.
[0061] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the general inventive concepts described herein and including all modifications, equivalents, and alternatives falling within the scope of the present application. The specification and examples given herein are exemplary only. The true scope and spirit of the application is indicated by the appended claims.
[0062] It should be understood that the present application is not limited to the precise structures herein described and illustrated and that various modifications and changes can be made without departing from the scope of the present application. The scope of the present application is limited only by the claims that follow.
[0063] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0064] The above provides a detailed introduction of the present application, and the principle and implementation mode of the present application are described by applying specific examples; the above embodiment description is only used to help understand the method of the present application and its core idea; meanwhile, for the general skilled in the art, according to the idea of the present application, the specific implementation mode and application scope will have changes; in conclusion, the content of the specification should not be understood as the limitation of the present application.
Claims
1. A stabilizer bar structure, characterized in that, include: The system comprises a first stabilizer bar, a second stabilizer bar, an outer casing, and an inner cylinder; one end of the outer casing is connected to the second stabilizer bar; both sides of the inner cylinder are tightly against the inner walls of both sides of the outer casing, and the inner cylinder is provided with oil passage holes; One end of the first stabilizer bar passes through the outer shell and the other end is placed in the inner cylinder, while the other end protrudes from the outer shell; the end of the first stabilizer bar placed in the inner cylinder has a protrusion, and the outer wall of the inner cylinder and the inner wall of the outer shell, as well as the inner wall of the inner cylinder and the first stabilizer bar, form a plurality of receiving chambers; the plurality of receiving chambers are filled with oil. When the torsional angle between the first stabilizer bar and the second stabilizer bar is not greater than a preset angle threshold, the oil flows through the oil through-hole in the plurality of receiving chambers; when the torsional angle between the first stabilizer bar and the second stabilizer bar is greater than the preset angle threshold, the protrusion blocks the flow of the oil.
2. The stabilizer bar structure according to claim 1, characterized in that, The inner cylinder includes a first sub-inner cylinder and a second sub-inner cylinder. The first inner cylinder, the second inner cylinder, and the outer shell are arranged coaxially.
3. A stabilizer bar structure according to claim 2, characterized in that, The protrusion includes an annular protrusion surrounding the first stabilizer bar and a first protrusion along the length of the first stabilizer bar; One side of the first protrusion is connected to the annular protrusion, and the other side is flush with the side of the first stabilizer.
4. A stabilizer bar structure according to claim 3, characterized in that, The inner wall of the second inner cylinder has a second protrusion, which is located at one end of the inner cylinder near the second stabilizing rod. The length of the second protrusion is the same as the length of the first protrusion.
5. A stabilizer bar structure according to claim 4, characterized in that, The accommodating chambers formed between the outer surface of the first stabilizing rod and the inner wall of the second sub-inner cylinder are the third chamber, the fourth chamber, and the fifth chamber, respectively. The end closer to the second stabilizer bar is the third chamber and the fourth chamber, and the end farther away from the second stabilizer bar is the fifth chamber; the fifth chamber is used to prevent the first stabilizer bar from moving relative to it in its length direction.
6. A stabilizer bar structure according to claim 5, characterized in that, The oil passage includes a first passage, a second passage, and a third passage; The second through hole and the third through hole are provided on the second inner cylinder, and the second through hole and the third through hole are provided in the third chamber and the fourth chamber respectively; When relative torsion occurs between the first stabilizer bar and the second stabilizer bar, the oil flows through the second through hole between the fifth chamber and the third chamber; the oil flows through the third through hole between the fifth chamber and the fourth chamber.
7. A stabilizer bar structure according to claim 6, characterized in that, The relative torsional angle range between the first stabilizer bar and the second stabilizer bar is positively correlated with the distance between the second through hole and the third through hole.
8. A stabilizer bar structure according to claim 6, characterized in that, The accommodating cavity formed between the outer wall of the first inner cylinder and the inner wall of the outer shell is the first chamber; the accommodating cavity formed between the inner wall of the first inner cylinder and the outer wall of the second inner cylinder is the second chamber. The first through hole is provided on the first inner cylinder; An adjusting ring is connected between the first inner cylinder and the second inner cylinder. The adjusting ring has a hollowed-out portion, the position of which corresponds to the position of the first through hole. The oil flows between the first chamber and the second chamber through the first through hole.
9. A suspension system, characterized in that, The stabilizer bar structure includes any one of claims 1-8.
10. A vehicle, characterized in that, Includes the suspension system as described in claim 9.