Bushing and control arm
By designing the bushing assembly and the limit assembly as independent components and combining them with the combined structure of the metal outer tube and the rubber buffer, the problem of insufficient support performance and durability of the bushing under axial force is solved, and stability and durability under large loads and long-term effects are achieved.
Patent Information
- Application Number
- CN202422485308.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In the prior art, when the front lower control arm control bushing is subjected to axial force, the support performance and durability of the rubber limit component are poor, and it is easy to crack and fail under large loads and long-term effects.
The bushing assembly and the limit assembly are designed as two independent components, each of which is provided with a first and a second axial limit portion. They are formed into one piece through a vulcanization process. The bushing assembly and the limit assembly are assembled along the axial direction, and the combined structure of the metal outer tube and the rubber buffer is used to improve the supporting performance and durability.
The supporting performance and durability of the bushing when subjected to axial force are improved, cracking under large loads and long-term effects is avoided, and the reliability of the control arm is improved.
Smart Images
Figure CN223374976U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to bushings and control arms. Background Art
[0002] The front lower control arm handling bushing is a key component in the vehicle's suspension system. Its function is to provide a flexible connection between the wheel and the vehicle body, absorbing road shock and vibration while maintaining proper wheel alignment. The bushing's design and performance directly impact the vehicle's handling stability and ride comfort.
[0003] In related technologies, the control bushing of the front lower control arm is made of an inner tube, rubber component glue, and outer tube that are vulcanized as a whole, and is interference-pressed onto the mounting part. When the bushing is subjected to axial force, the supporting performance and durability of the rubber limiting component are poor. Under large loads and long-term action, the rubber limiting component is prone to cracking and failure. Utility Model Content
[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a bushing and a control arm, which can improve the support performance and durability of the bushing when subjected to axial force, and the bushing is not prone to cracking and failure under large loads and long-term action.
[0005] In a first aspect, the present application provides a bushing, comprising:
[0006] A bushing assembly and a limiting assembly, wherein the bushing assembly and the limiting assembly are assembled into one piece along the axial direction of the bushing assembly;
[0007] The bushing assembly is provided with a first axial limiting portion, and the limiting assembly is provided with a second axial limiting portion. The first axial limiting portion and the second axial limiting portion are respectively located at two axial ends of the bushing.
[0008] In one implementation, a bushing mounting groove is provided on the outer side of the bushing, and the bushing mounting groove is used for assembly with the bushing mounting piece. The bushing mounting groove is formed on the periphery of the bushing assembly and the limit assembly, and is axially located between the first axial limit portion and the second axial limit portion.
[0009] In one implementation, the bushing assembly includes an inner tube, a first buffer member sleeved on the inner tube, and a first outer tube tightly attached to an outer wall of the first buffer member, and the first axial limiting portion is provided on the first buffer member.
[0010] In one implementation, the limiting assembly includes a second buffer and a second outer tube tightly attached to the outer wall of the second buffer, the second buffer is sleeved on an end of the inner tube away from the bushing assembly, and the second axial limiting portion is provided on the second buffer.
[0011] In one implementation, the first limiting portion includes a first limiting boss protruding radially on the first buffer member, and the first limiting boss is supported by a radially extending portion of the first outer tube;
[0012] The second limiting portion includes a second limiting boss protruding radially on the second buffer member, and the second limiting boss is supported by a radially extending portion of the second outer tube.
[0013] In one implementation, the bushing mounting groove is formed between a radially extending portion of the first outer tube and a radially extending portion of the second outer tube;
[0014] The first limiting boss is axially away from the side of the bushing mounting groove and is used to be opposite to the first baffle, and the second boss is axially away from the side of the bushing mounting groove and is used to be opposite to the second baffle, wherein the bushing is axially assembled between the first baffle and the second baffle.
[0015] In one implementation, the first limiting boss and the second limiting boss have preset radial extension widths, and the radial extension widths of the first limiting boss and the second limiting boss are equal.
[0016] In one implementation, the first buffer component and the second buffer component are made of rubber, and the hardness of the first buffer component is higher than that of the second buffer component.
[0017] In one implementation, the inner tube, the first buffer member, and the first outer tube are assembled into one piece by a vulcanization process;
[0018] The second buffer component and the second outer tube are assembled into one body through a vulcanization process.
[0019] A second aspect of the present application provides a control arm, comprising:
[0020] A control arm body is provided with a bushing mounting portion, and the bushing mounting portion is installed with the bushing described in the first aspect above.
[0021] The technical solution provided by this application may have the following beneficial effects:
[0022] The bushing provided in the present application includes: a bushing assembly and a stop assembly, wherein the bushing assembly and the stop assembly are assembled into one piece along the axial direction of the bushing assembly; wherein the bushing assembly is provided with a first axial stop portion, and the stop assembly is provided with a second axial stop portion, wherein the first axial stop portion and the second axial stop portion are respectively located at two axial ends of the bushing. Since the bushing assembly and the stop assembly are two independent components, the characteristics of the bushing assembly and the stop assembly can be set separately, thereby improving the support performance and durability of the bushing when subjected to axial force, and preventing the bushing from cracking and failing under large loads and long-term effects.
[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.
[0025] Figure 1 is an exploded view of a bushing shown in an embodiment of the present application;
[0026] Figure 2 is a cross-sectional view of a bushing shown in an embodiment of the present application;
[0027] Figure 3 This is a schematic diagram of the assembly of the bushing shown in the embodiment of the present application.
[0028] Figure markings: 110, bushing assembly; 120, limit assembly; 111, inner tube; 101, bushing mounting groove; 1101, first axial limit portion; 1111, first limit boss; 1201, second axial limit portion; 1211, second limit boss; 112, first buffer member; 113, first outer tube; 121, second buffer member; 122, second outer tube; 130, mounting member; 140, first baffle; 150, second baffle. DETAILED DESCRIPTION
[0029] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0031] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0032] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0033] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0034] In the related art, the control bushing of the front lower control arm is made of an inner tube, a rubber component, and an outer tube, which are integrally vulcanized and press-fitted onto the mounting member. When the bushing is subjected to axial forces, the support performance and durability of the rubber limiter are poor, and the rubber limiter is prone to cracking and failure under heavy loads and long-term effects. To address the above issues, the embodiments of the present application provide a bushing and control arm that can improve the bushing's support performance and durability when subjected to axial Y forces, and are less likely to crack and fail under heavy loads and long-term effects.
[0035] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0036] Figure 1 is an exploded view of a bushing shown in an embodiment of the present application; Figure 2 is a cross-sectional view of a bushing shown in an embodiment of the present application; Figure 3 This is a schematic diagram of the assembly of the bushing shown in the embodiment of the present application.
[0037] Please also see Figures 1 to 3 The present application provides a bushing, including a bushing assembly 110 and a limit assembly 120, which are assembled as a whole along the axial direction Y of the bushing assembly 110; wherein, the bushing assembly 110 is provided with a first axial limit portion 1101, and the limit assembly 120 is provided with a second axial limit portion 1201, and the first axial limit portion 1101 and the second axial limit portion 1201 are respectively located at the two ends of the axial direction Y of the bushing.
[0038] The bushing provided in the present application can be a vehicle's front lower control arm control bushing. The bushing assembly 110 and the limit assembly 120 are two independent components. Therefore, the characteristics of the bushing assembly 110 and the limit assembly 120 can be set separately, thereby improving the support performance and durability of the bushing when subjected to axial Y force, and the bushing is not easy to crack and fail under large loads and long-term action.
[0039] In the embodiment of the present application, the axial direction is Figure 2 and Figure 3 The Y direction of the rectangular coordinate system is the radial direction, and the X direction is the radial direction.
[0040] See also Figure 2 and Figure 3 In some embodiments, a bushing mounting groove 101 is provided on the outer side of the bushing, and the bushing mounting groove 101 is used to assemble with the bushing mounting member 130. The bushing mounting groove 101 is formed on the periphery of the bushing assembly 110 and the limit assembly 120, and is located between the first axial limit portion 1101 and the second axial limit portion 1201 in the axial direction Y.
[0041] The bushing assembly 110 and the independent assembly are simultaneously pressed into both ends of the hole of the mounting member 130 by interference fit. When the bushing is subjected to axial Y force, the mounting member 130 will drive the bushing assembly sleeve and the limit assembly 120 to move in the axial Y direction. The first axial limit portion 1101 and the second axial limit portion 1201 have a buffering effect, which can alleviate axial impact.
[0042] See also Figure 2In some embodiments, the bushing assembly 110 includes an inner tube 111, a first buffer member 112 sleeved on the inner tube 111, and a first outer tube 113 closely attached to the outer wall of the first buffer member 112. The first axial stopper 1101 is provided on the first buffer member 112. The stopper assembly 120 includes a second buffer member 121 and a second outer tube 122 closely attached to the outer wall of the second buffer member 121. The second buffer member 121 is sleeved on the end of the inner tube 111 away from the bushing assembly 110, and the second axial stopper 1201 is provided on the second buffer member 121.
[0043] The first and second buffer members 112 and 121 are made of rubber, while the first and second outer tubes 113 and 122 are made of metal. The inner tube 111, first buffer member 112, and first outer tube 113 are assembled into one piece through a vulcanization process; the second buffer member 121 and second outer tube 122 are also assembled into one piece through a vulcanization process.
[0044] The rubber materials of the first buffer component 112 and the second buffer component 121 can be set independently, and the physical properties and dimensional parameters can be set to be the same or different. When set to different, the hardness of the first buffer component 112 is higher than that of the second buffer component 121, thereby improving the impact support performance of the second buffer component 121, preventing the second buffer component 121 from being quickly smashed, and improving the overall durability of the bushing.
[0045] When the bushing is subjected to axial force Y, the mounting member 130 drives the bushing assembly 110 and the limiting assembly 120 to move in the axial direction Y of the inner tube 111, and reciprocating collisions are generated between the first buffer member 112 and the first baffle 140, and between the second buffer member 121 and the second baffle 150. Since the first buffer member 112 and the second buffer member 121 are made of rubber material, they deform themselves during the collision, thereby alleviating the impact.
[0046] In some embodiments, the first limiting portion includes a first limiting boss 1111 projecting along the radial direction X on the first buffer member 112, supported by a radially extending portion of the first outer tube 113. The second limiting portion includes a second limiting boss 1211 projecting along the radial direction X on the second buffer member 121, supported by a radially extending portion of the second outer tube 122. Because the first and second outer tubes 113 and 122 are made of metal and are respectively in close contact with the outer walls of the first and second buffer members 112 and 121, the support performance of the first and second buffer members 112 and 121 when subjected to force in the axial direction Y can be improved, thereby preventing damage to the first and second buffer members 112 and 121 during impact.
[0047] In some embodiments, the bushing mounting groove 101 is formed between the radial extension portion of the first outer tube 113 and the radial extension portion of the second outer tube 122; the side of the first limiting boss 1111 facing away from the bushing mounting groove 101 is used to be opposite to the first baffle 140, and the side of the second boss facing away from the bushing mounting groove 101 is used to be opposite to the second baffle 150, wherein the bushing is assembled between the first baffle 140 and the second baffle 150 in the axial direction Y.
[0048] In some embodiments, the first limiting boss 1111 and the second limiting boss 1211 have a preset radial extension width, and the radial extension widths of the first limiting boss 1111 and the second limiting boss 1211 are equal.
[0049] Since the bushing assembly 110 and the limiting assembly 120 are two independent components, the first limiting boss 1111 and the second limiting boss 1211 can be respectively set to have a preset radial extension width, especially the radial extension width of the first limiting boss 1111 can be made wider, thereby further improving the impact support performance.
[0050] The present application also provides a control arm, comprising a control arm body, the control arm body being provided with a bushing mounting portion, the bushing mounting portion being mounted with the bushing as described in the above embodiment. The control arm may be a front lower control arm of a vehicle.
[0051] Since the bushing assembly 110 and the limit assembly 120 of the bushing are two independent components, the characteristics of the bushing assembly 110 and the limit assembly 120 can be set separately, thereby improving the supporting performance and durability of the bushing when subjected to axial force, and the bushing is not easy to crack and fail under large loads and long-term effects, thereby improving the reliability of the control arm body.
[0052] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.
Claims
1. A bushing, characterized in that: include: A bushing assembly and a limiting assembly, wherein the bushing assembly and the limiting assembly are assembled into one piece along the axial direction of the bushing assembly; The bushing assembly is provided with a first axial limiting portion, and the limiting assembly is provided with a second axial limiting portion. The first axial limiting portion and the second axial limiting portion are respectively located at two axial ends of the bushing.
2. The bushing according to claim 1, characterized in that: A bushing installation groove is provided on the outer side of the bushing, and the bushing installation groove is used for assembling with the bushing installation piece; The bushing installation groove is formed on the periphery of the bushing assembly and the limiting assembly, and is located between the first axial limiting portion and the second axial limiting portion in the axial direction.
3. The bushing according to claim 2, characterized in that: The bushing assembly includes an inner tube, a first buffer member sleeved on the inner tube, and a first outer tube tightly attached to an outer wall of the first buffer member, and the first axial limiting portion is provided on the first buffer member.
4. The bushing according to claim 3, characterized in that: The limiting assembly includes a second buffer and a second outer tube tightly attached to the outer wall of the second buffer; the second buffer is sleeved on one end of the inner tube away from the bushing assembly, and the second axial limiting portion is provided on the second buffer.
5. The bushing according to claim 4, characterized in that: The first limiting portion includes a first limiting boss protruding radially on the first buffer member, and the first limiting boss is supported by a radially extending portion of the first outer tube; The second limiting portion includes a second limiting boss protruding radially on the second buffer member, and the second limiting boss is supported by a radially extending portion of the second outer tube.
6. The bushing according to claim 5, characterized in that: The bushing mounting groove is formed between the radially extending portion of the first outer tube and the radially extending portion of the second outer tube; The first limiting boss is axially away from the side of the bushing mounting groove and is used to be opposite to the first baffle, and the second boss is axially away from the side of the bushing mounting groove and is used to be opposite to the second baffle, wherein the bushing is axially assembled between the first baffle and the second baffle.
7. The bushing according to claim 5, characterized in that: The first limiting boss and the second limiting boss have a preset radial extension width, and the radial extension widths of the first limiting boss and the second limiting boss are equal.
8. The bushing according to claim 4, characterized in that: The first buffer component and the second buffer component are made of rubber, and the hardness of the first buffer component is higher than that of the second buffer component.
9. The bushing according to claim 4, characterized in that: The inner tube, the first buffer member and the first outer tube are assembled into one body through a vulcanization process; The second buffer component and the second outer tube are assembled into one body through a vulcanization process.
10. A control arm, characterized in that: include: A control arm body, wherein the control arm body is provided with a bushing mounting portion, and the bushing mounting portion is mounted with the bushing according to any one of claims 1 to 9.