Left suspension assembly

Abstract

The utility model discloses a left suspension assembly and belongs to the technical field of automobile parts, the left suspension assembly comprises a lining, an automobile body support and a cantilever, the automobile body support comprises a ring piece arranged outside the lining in a sleeving mode and at least two connecting supporting feet, the connecting supporting feet are connected with an auxiliary frame of an automobile, and the connecting supporting feet are pre-evenly distributed on the periphery of the ring piece; the cantilever comprises an inserting section and an assembling plate, an inverted buckle is arranged on the surface of the inserting section, a bayonet corresponding to the inverted buckle is formed in the inner wall face of the lining, the inserting section extends into the lining, the inverted buckle on the surface of the inserting section is embedded into the lining, and the assembling plate of the cantilever is connected with a motor of an automobile. The cantilever is designed to be connected with the motor, and the vehicle body support is connected with the auxiliary frame, so that even if the motor is subjected to relevant shape adjustment or upgrading, as long as the two uppermost mounting surfaces are not changed, the device can still be applied, and the cost required by development of a new vehicle type is further reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile parts, in particular to a left suspension assembly. BACKGROUND

[0002] With the rapid development of automobile technology, consumers' requirements for automobile performance are increasing, especially in terms of vibration and noise control. The left suspension, as an important part connecting the engine and the vehicle body, directly affects the comfort and safety of the vehicle. In the traditional design of the left suspension, the vibration of the engine is transmitted to the vehicle body through the left suspension. Especially in the case of emergency braking, the impact force on the left suspension is large, and if it is loose or fails, it will bring corresponding safety hazards.

[0003] Related prior art such as Chinese patent application "A left suspension", publication number: CN207931462U; discloses a left suspension, which comprises a circular sleeve column and a connecting body, a first connecting block, a second connecting block and a third connecting block are fixed on the outer side wall of the circular sleeve column, a connecting sleeve is arranged in the circular sleeve column, the connecting sleeve is sleeved with the connecting body, a horizontal section extending outward is arranged on the connecting body, and a folding section, a first fixing boss and two second fixing bosses are arranged on the horizontal section. The utility model has the advantages of simple structure, convenient assembly, high stress intensity of the circular sleeve column and the connecting body, and elimination of the safety hazards caused by the excessive movement impulse of the engine relative to the left suspension during braking, which causes the failure of the left suspension.

[0004] The traditional left suspension assembly adopts the interference method of rubber and cantilever press fitting, and also needs to consider the depth influence of rubber hardness change and lubricant application, which is not easy to control the press fitting depth of the cantilever. In addition, the traditional left suspension assembly structure adopts the method of connecting the support arm and the motor in the vehicle, and connecting the bushing inner core and the subframe. However, with the diversification of the existing vehicle structure, when the motor is adjusted or upgraded in shape, the support arm structure connected therewith needs to be modified synchronously, which causes high development cost of the vehicle. Utility model content

[0005] The technical problem to be solved by the application is to provide a left suspension assembly, which connects the cantilever and the motor, and connects the vehicle body support and the subframe. In this way, even if the motor is adjusted or upgraded in shape, as long as the two uppermost mounting surfaces are not changed, the application can still be applied, further reducing the cost required for the development of new vehicle models.

[0006] The technical scheme adopted by the present application is: a left suspension assembly, comprising a bushing, a vehicle body support and a cantilever, the vehicle body support comprises a ring member sleeved outside the bushing and at least two connecting legs, the connecting legs are connected with the subframe of the vehicle, the connecting legs are pre-uniformly arranged on the outer periphery of the ring member, the cantilever comprises a plug-in section and an assembly plate, the surface of the plug-in section is provided with an undercut, the inner wall of the bushing is provided with a bayonet corresponding to the undercut, the plug-in section extends into the bushing, and the undercut on the surface of the plug-in section is embedded into the bushing, and the assembly plate of the cantilever is connected with the motor of the vehicle.

[0007] Compared with the prior art, the advantages of the present application are that the cantilever of the left suspension assembly is connected with the motor, and the vehicle body support is connected with the subframe, so that even if the motor of the vehicle is adjusted or upgraded in shape, as long as the two installation surfaces at the top of the motor are not involved, the present application can be applied, and the development cost is further reduced. The at least two connecting legs pre-uniformly arranged on the outer periphery of the ring member are used to connect with the subframe, so that the tolerance compensation of the hole diameter of the connecting leg is larger, and the degree of freedom of vehicle assembly is high. The traditional cantilever is press-fitted with the rubber of the bushing, and it is difficult to control the press-fitting depth of the cantilever. The cantilever press-fitting mode of the present application adopts the undercut on the surface of the plug-in section embedded into the bushing, which is a hard connection mode, which can better control the press-fitting depth of the cantilever, and can eliminate the depth influence caused by the hardness change of the rubber and the application of lubricant.

[0008] In some embodiments of the present application, the vehicle body support comprises three connecting legs, one end of the connecting leg is connected with the outer periphery of the ring member, the other end of the connecting leg extends away from the assembly plate, and the connecting leg is inclinedly arranged. This is the preferred technical scheme of the present application.

[0009] The design of the three connecting legs provides a larger contact area and support point, which can effectively disperse the load applied on the vehicle body support. This design enhances the stability of the overall structure and reduces the risk of loosening caused by vibration or impact during driving. The uniform arrangement and inclined design of the connecting legs provide greater freedom in vehicle assembly, facilitating the adjustment and optimization of the assembly process and reducing problems caused by assembly errors. This design can adapt to structural changes of different vehicle models, especially when the motor or other related components are adjusted in shape, the design of the connecting leg can maintain good connection effect, reducing the complexity of development and maintenance.

[0010] In some embodiments of the present application, the longitudinal section of the connecting leg is in a U-shaped structure, and the other end of the connecting leg is provided with a stepped circular ring structure for connection.

[0011] The design of the U-shaped cross-section reduces the overall weight of the connecting leg, better maintains the shape when subjected to external forces, and reduces deformation caused by external forces. This structure has high strength and rigidity, which can effectively prolong the service life of the connecting leg. The stepped circular ring structure design makes the connection more secure and provides better connection effect. This structure helps to form a more stable contact surface during connection, reducing the risk of loosening caused by vibration and impact.

[0012] In some embodiments of the present application, the vehicle body support is integrally formed. Integrally forming can be completed at one time through a machining process, reducing the assembly and welding process. This not only reduces production costs, but also improves production efficiency and shortens the manufacturing cycle. The design of integrally forming eliminates the connection points between multiple parts, reduces potential weak points and stress concentration areas, thereby significantly improving the overall strength and rigidity of the vehicle body support.

[0013] In some embodiments of the present application, the insertion section is a cylindrical structure, the cross-section of the insertion section is a rhombic frame structure, and the outer surface of the insertion section is smoothly transitioned. The cross-section of the rhombic frame further enhances the bending and torsional resistance of the insertion section, and this structure exhibits higher strength and rigidity when subjected to external forces. The use of cylindrical structure and rhombic frame design can reduce the use of materials while maintaining strength, thereby reducing the overall weight.

[0014] In some embodiments of the present application, the insertion section is provided with a limiting assembly near one end of the assembly plate, and the limiting assembly includes at least two limiting protrusions located on the same horizontal plane, which act on one end surface of the bushing. The limiting protrusions limit the relative displacement of the cantilever and the bushing when subjected to force.

[0015] The design of the limiting assembly effectively limits the relative displacement between the cantilever and the bushing, ensuring that they remain in fixed positions under stress. This limitation can prevent loosening caused by vibration or impact, thereby improving the stability and safety of the overall structure. By providing multiple limiting protrusions on the same horizontal plane, the force applied to the connection site can be evenly distributed, reducing stress concentration. This design enhances the stability of the connection and reduces the risk of failure caused by excessive local stress.

[0016] In some embodiments of the present application, the assembly plate is arranged parallel to the axial direction of the insertion section, and the side end surface of the assembly plate near the bushing is a plane. Two mounting holes are symmetrically arranged on the assembly plate for connecting with the motor of the automobile.

[0017] The assembly plate allows quick and convenient positioning and fixing when installing the motor, simplifying the assembly process and saving time and labor costs. The symmetrically arranged mounting holes can evenly distribute the force applied to the motor, reducing the risk of loosening caused by uneven stress, thereby improving the stability and safety of the connection.

[0018] In some embodiments of the present application, a plurality of lightening grooves are arranged on the assembly plate, and the lightening grooves are located between two mounting holes. The design of the lightening grooves can effectively reduce the overall weight of the assembly plate, and reduce the self-weight of the vehicle without affecting the strength and rigidity. The use of materials is reduced. This optimized material utilization helps to reduce production costs.

[0019] In some embodiments of the present application, the bushing comprises an inner core located at the inner wall of the bushing, the inner core is a rhombic cylindrical structural member adapted to the plug-in section, and the inner core surface is provided with a bayonet corresponding to the reverse buckle, and the reverse buckle is embedded into the bayonet.

[0020] The rhombic cylindrical structure design of the inner core can effectively improve the connection stability between the bushing and the plug-in section. The design of the reverse buckle embedded into the bayonet ensures the firmness of the connection and reduces the risk of loosening caused by vibration or impact. The design of the inner core adapted to the plug-in section ensures the alignment accuracy during assembly, and the use of hard connection reduces assembly errors. This high-precision assembly helps to improve the stability and comfort of the vehicle.

[0021] In some embodiments of the present application, the bushing further comprises an outer sleeve and a rubber member, the outer sleeve is sleeved outside the inner core, the outer sleeve and the inner core are connected through the rubber member, and the vehicle body support is sleeved outside the outer sleeve. The use of the rubber member effectively absorbs vibration and impact, providing good damping effect. The rubber connection between the outer sleeve and the inner core can reduce the impact on other parts of the vehicle caused by vibration transmission, thereby improving the comfort of the vehicle.

[0022] On the basis of common general knowledge in the art, the above-mentioned embodiments can be combined arbitrarily. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 Structure of the present application Figure 1 ;

[0025] Figure 2 Structure of the present application Figure 2 ;

[0026] Figure 3 Exploded structure of the present application.

[0027] Wherein, the reference signs are specifically explained as follows: 1, bushing; 2, vehicle body support; 3, cantilever; 4, connecting leg; 5, ring; 6, assembly plate; 7, reverse buckle; 8, bayonet; 9, inner core; 10, outer sleeve; 11, rubber part; 12, plug-in section; 14, limiting protrusion; 15, mounting hole; 16, weight-reducing groove. DETAILED DESCRIPTION

[0028] The application will be described in detail below with reference to the drawings.

[0029] In order to make the purpose, technical scheme and advantages of the application more clear, the application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0030] A left suspension assembly, example one is shown as follows: including a bushing 1, a vehicle body support 2 and a cantilever 3, the vehicle body support 2 includes a ring and at least two connecting legs 4, the connecting legs 4 are connected with the subframe of the vehicle, the connecting legs 4 are uniformly arranged on the outer periphery of the ring 5, and the tolerance compensation of the hole diameter of the connecting legs will be larger when the client assembles, and the degree of freedom of the vehicle is high. Figure 1 Figure 2 The cantilever 3 includes a plug-in section 12 and an assembly plate 6, the surface of the plug-in section 12 is provided with a reverse buckle 7, the inner wall of the bushing 1 is provided with a bayonet 8 corresponding to the reverse buckle 7, the plug-in section 12 extends into the bushing 1, the reverse buckle 7 on the surface of the plug-in section 12 is embedded into the bushing 1, and the assembly plate 6 of the cantilever 3 is connected with the motor of the vehicle. The reverse buckle 7 on the surface of the plug-in section 12 of the cantilever 3 of the application is embedded into the bushing 1, which is a hard connection mode, which can better control the pressing depth of the cantilever 3, and can eliminate the depth influence caused by the hardness change of the rubber and the lubricant.

[0031] The cantilever 3 of the left suspension assembly of the application is connected with the motor, and the vehicle body support 2 is connected with the subframe, which makes the application applicable as long as the two mounting surfaces at the top of the motor are not involved even if the motor of the vehicle is adjusted or upgraded in shape, further reducing the development cost.

[0032] The cantilever 3 of the left suspension assembly of the application is connected with the motor, and the vehicle body support 2 is connected with the subframe, which makes the application applicable as long as the two mounting surfaces at the top of the motor are not involved even if the motor of the vehicle is adjusted or upgraded in shape, further reducing the development cost.

[0033] ​The bushing 1 includes an inner core 9 located on the inner wall of the bushing 1. The inner core 9 is a rhomboid cylindrical structure adapted to the insertion section 12. A snap-fit ​​8 corresponding to the undercut 7 is formed on the surface of the inner core 9, and the undercut 7 is embedded in the snap-fit ​​8. The rhomboid cylindrical structure design of the inner core 9 effectively improves the connection stability between the bushing 1 and the insertion section 12. The design of the undercut 7 embedding in the snap-fit ​​8 ensures a firm connection and reduces the risk of loosening due to vibration or impact. The adaptation of the inner core 9 to the insertion section 12 ensures alignment accuracy during assembly, and the use of a rigid connection reduces assembly errors. This high-precision assembly helps improve the stability and comfort of the entire vehicle.

[0034] The bushing 1 also includes an outer sleeve 10 and a rubber component 11. The outer sleeve 10 is fitted over the inner core 9, and the outer sleeve 10 and the inner core 9 are connected by the rubber component 11. The vehicle body bracket 2 is fitted over the outer sleeve 10. The use of the rubber component 11 effectively absorbs vibration and impact, providing good shock absorption. The rubber connection between the outer sleeve 10 and the inner core 9 can reduce the impact on other vehicle components caused by vibration transmission, thereby improving vehicle comfort.

[0035] Example 2, as Figures 1 to 3 As shown, the vehicle body support 2 includes three connecting legs 4. One end of each connecting leg 4 is connected to the outer circumferential surface of the ring 5, and the other end of each connecting leg 4 extends away from the mounting plate 6. The connecting legs 4 are inclined. This is a preferred technical solution of this application. The design of the three connecting legs 4 provides a larger contact area and support points, effectively distributing the load applied to the vehicle body support 2. This design enhances the stability of the overall structure and reduces the risk of loosening due to vibration or impact during driving. The uniform distribution and inclined design of the connecting legs 4 provide greater freedom of installation during final assembly at the customer's site, facilitating adjustments and optimization of the assembly process and reducing problems caused by assembly errors. This design can adapt to structural changes in different vehicle models. Especially when the shape of the motor or other related components is adjusted, the leg design can maintain a good connection effect, reducing the complexity of development and maintenance.

[0036] The longitudinal cross-section of the connecting leg 4 is U-shaped, and the other end of the connecting leg 4 is provided with a stepped annular structure for connection. The U-shaped cross-section design reduces the overall weight of the connecting leg 4 and helps it maintain its shape better under external forces, reducing deformation caused by external forces. This structure has high strength and rigidity, which can effectively extend the service life of the connecting leg 4. The stepped annular structure design makes the connection more secure and provides a better connection effect. This structure helps to form a more stable contact surface during connection, reducing the risk of loosening due to vibration and impact.

[0037] The vehicle body support 2 is integrally formed. Integrally forming can be completed at one time through a machining process, reducing the assembly and welding process. This not only reduces the production cost, but also improves the production efficiency and shortens the manufacturing cycle. The design of integrally forming eliminates the connection points between multiple parts, reduces the potential weak points and stress concentration areas, thereby significantly improving the overall strength and stiffness of the vehicle body support 2.

[0038] The other contents of embodiment two are the same as those of embodiment one.

[0039] As shown in embodiment three, Figures 1 to 3 The insertion section 12 is a cylindrical structure, and the cross section of the insertion section 12 is in the shape of a rhombic frame structure, and the outer surface of the insertion section 12 is smoothly transitioned. The cross section of the rhombic frame further enhances the bending and torsion resistance of the insertion section 12, and this structure exhibits higher strength and stiffness when subjected to external force. By adopting the cylindrical structure and the rhombic frame design, the use of materials can be reduced while maintaining strength, thereby reducing the overall weight.

[0040] The insertion section 12 is provided with a limiting assembly at one end close to the assembly plate 6, and the limiting assembly includes at least two limiting protrusions 14 located on the same horizontal plane, which act on one end surface of the bushing 1. The limiting protrusions 14 limit the relative displacement of the cantilever 3 and the bushing 1 under stress. The design of the limiting assembly effectively limits the relative displacement between the cantilever 3 and the bushing 1, ensuring that they remain in fixed positions under stress. This limitation can prevent loosening caused by vibration or impact, thereby improving the stability and safety of the overall structure. By arranging multiple limiting protrusions 14 on the same horizontal plane, the force applied to the connection part can be evenly distributed, reducing stress concentration. This design enhances the stability of the connection and reduces the risk of failure due to excessive local stress.

[0041] The assembly plate 6 is arranged parallel to the axial direction of the insertion section 12, and the side end surface of the assembly plate 6 close to the bushing 1 is a plane. Two mounting holes 15 are symmetrically arranged on the assembly plate 6 for connecting with the motor of the automobile. The assembly plate 6 enables quick and convenient positioning and fixing when installing the motor, simplifying the assembly process and saving time and labor costs. The symmetrically arranged mounting holes 15 can evenly distribute the force applied to the motor, reducing the risk of loosening caused by uneven stress, thereby improving the stability and safety of the connection.

[0042] A plurality of weight reduction grooves 16 are arranged on the assembly plate 6, and the weight reduction grooves 16 are located between the two mounting holes 15. The design of the weight reduction grooves 16 can effectively reduce the overall weight of the assembly plate 6, reducing the self-weight of the vehicle without affecting the strength and stiffness. Reducing the use of materials. This optimized material utilization helps to reduce production costs.

[0043] The other contents of Example Three are the same as those of Example One or Example Two.

[0044] The above has been made to the application in detail, the principle and implementation mode of the application are described in this paper by applying specific examples, the above example is only used to help understanding the application and the core idea. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the application, the application can be improved and modified, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A left suspension assembly characterized by, The application relates to a suspension bracket for a motor vehicle, which comprises a bushing (1), a body support (2) and a cantilever (3), wherein the body support (2) comprises a ring (5) sleeved on the bushing (1) and at least two connecting legs (4) connected with a subframe of the motor vehicle, the connecting legs (4) are uniformly arranged on the outer periphery of the ring (5), the cantilever (3) comprises a plug-in section (12) and an assembly plate (6), the plug-in section (12) is provided with a reverse buckle (7) on the surface, the bushing (1) is provided with a bayonet (8) corresponding to the reverse buckle (7) on the inner wall surface, the plug-in section (12) is inserted into the bushing (1), and the reverse buckle (7) on the surface of the plug-in section (12) is embedded into the bushing (1), and the assembly plate (6) of the cantilever (3) is connected with a motor of the motor vehicle.

2. A left suspension assembly according to claim 1, characterized in that The body support (2) comprises three connecting legs (4), one end of the connecting leg (4) is connected with the outer periphery of the ring (5), the other end of the connecting leg (4) extends to the side away from the assembly plate (6), and the connecting leg (4) is arranged in an inclined mode.

3. A left suspension assembly according to claim 1, wherein, The longitudinal section of the connecting leg (4) is in a U-shaped structure, and the other end of the connecting leg (4) is provided with a stepped circular ring structure for connection.

4. A left suspension assembly according to claim 1, wherein, The body support (2) is integrally formed.

5. A left suspension assembly as in claim 1, wherein, The plug-in section (12) is a cylindrical structure, the cross section of the plug-in section (12) is in a diamond frame structure, and the outer surface of the plug-in section (12) is smoothly transitioned.

6. A left suspension assembly according to claim 1, wherein, The end of the plug-in section (12) close to the assembly plate (6) is provided with a limiting assembly, the limiting assembly comprises at least two limiting protrusions (14) located on the same horizontal plane, and the limiting protrusions (14) act on one end surface of the bushing (1).

7. A left suspension assembly according to claim 1 wherein, The assembly plate (6) is arranged in parallel to the axial direction of the plug-in section (12), the side end surface of the assembly plate (6) close to the bushing (1) is a plane, and two mounting holes (15) are symmetrically arranged on the assembly plate (6) and used for being connected with the motor of the motor vehicle.

8. A left suspension assembly according to claim 7, wherein, A plurality of lightening grooves (16) are arranged on the assembly plate (6) and located between the two mounting holes (15).

9. A left suspension assembly according to claim 1 wherein, The bushing (1) comprises an inner core (9), the inner core (9) is located at the inner wall of the bushing (1), the inner core (9) is a diamond cylindrical structure matched with the plug-in section (12), the surface of the inner core (9) is provided with the bayonet (8) corresponding to the reverse buckle (7), and the reverse buckle (7) is embedded into the bayonet (8).

10. A left suspension assembly according to claim 9, wherein, The bushing (1) further comprises an outer sleeve (10) and a rubber piece (11), the outer sleeve (10) is sleeved on the inner core (9), the outer sleeve (10) and the inner core (9) are connected through the rubber piece (11), and the body support (2) is sleeved on the outer sleeve (10).

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