CN214928936U

CN214928936U - Rear suspension support, anti-torsion suspension structure and vehicle

Info

Publication number: CN214928936U
Application number: CN202121351001.2U
Authority: CN
Inventors: 杨洋
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-30
Anticipated expiration: 2031-06-17

Abstract

The utility model provides a back suspension support, antitorque suspension structure and vehicle belongs to vehicle technical field, and back suspension support includes back suspension support body, and back suspension support body has the first connecting portion of connecting power component, connects the second connecting portion of variable speed subassembly and connects the third connecting portion of back suspension body. The anti-torsion suspension structure comprises a rear suspension body and a rear suspension support, and the rear suspension body is rotatably connected with the rear suspension support through a third connecting portion. The utility model provides a rear suspension bracket, which is provided with a first connecting part for mounting a power component and a second connecting part for mounting a speed change component; the reaction force of the rear suspension support can be averagely shared when the power assembly has large torque, so that the problems of breakage and cracking of the associated parts such as the suspension, the engine, the transmission and the like under the action of the large torque are avoided, the working reliability of the whole vehicle is improved, the driving faults are avoided and reduced, and the maintenance cost is reduced.

Description

Rear suspension support, anti-torsion suspension structure and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle, concretely relates to back suspension support, antitorque suspension structure and have vehicle of this back suspension support.

Background

The three-point pendulum type suspension has the advantages of simple structure, low cost, good vibration isolation effect and the like, is widely applied in the field of automobile suspension systems, and the suspensions of some fuel vehicles, electric vehicles and hybrid vehicles are already suspended by the three-point pendulum type suspension. The three-point pendulum suspension comprises a left suspension, a right suspension and a rear suspension. The rear suspension generally adopts an anti-torsion suspension, and the main functions of the anti-torsion suspension are shock insulation and torsion limitation, isolation of torsional vibration of the power assembly and limitation of torsional displacement of the power assembly, so that the anti-torsion suspension is an important anti-torsion structure of the three-point pendulum type suspension.

The power assembly has different structures on different power vehicle types, such as: the fuel/hybrid vehicle type has an engine and a transmission; the electric vehicle has a motor and a decelerator. The rear suspension needs to be connected with an engine and a transmission or a motor and a reducer according to different vehicle types, and needs larger torsion resistance. However, the conventional rear suspension has poor torsion resistance, and easily causes the breakage or the cracking of components such as an engine, a transmission, a motor, a speed reducer and the like which are connected with each other, thereby influencing the working reliability of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a back suspension support can improve the antitorque performance of back suspension support, improves the reliability of whole car work.

In a first aspect, to achieve the above objects, an embodiment of the present invention provides a rear suspension bracket, including: the rear suspension bracket body is provided with a first connecting part connected with the power assembly, a second connecting part connected with the speed change assembly and a third connecting part connected with the rear suspension body.

With reference to the first aspect, in a possible implementation manner, the first connection portion is provided with a plurality of first connection holes, the third connection portion is provided with a third connection hole, and a connection line between centers of any two of the first connection holes and a center of the third connection hole forms a triangular structure.

With reference to the first aspect, in a possible implementation manner, the second connecting portion is provided with a plurality of second connecting holes, the third connecting portion is provided with a third connecting hole, and a connection line between circle centers of any two of the second connecting holes and a circle center of the third connecting hole forms a triangular structure.

With reference to the first aspect, in a possible implementation manner, a connection vibration isolation sleeve assembly is disposed in each of the first connection hole, the second connection hole, and the third connection hole.

With reference to the first aspect, in one possible implementation manner, the connection vibration isolation sleeve assembly includes a sleeve inner core, a sleeve rubber body, and a sleeve outer tube, the sleeve rubber body is sleeved on the sleeve inner core, and the sleeve outer tube is sleeved on the sleeve rubber body; the shaft sleeve outer pipe is assembled in the first connecting hole, the second connecting hole and the third connecting hole.

With reference to the first aspect, in a possible implementation manner, the first connection portion and the third connection portion are disposed at two ends of the rear suspension bracket body, and the second connection portion is located between the first connection portion and the third connection portion; the second connecting portion extends toward the transmission assembly, and the second connecting portion has a support plane that supports the transmission assembly.

With reference to the first aspect, in a possible implementation manner, a side of the rear suspension bracket body facing the second connection portion is provided with a raised reinforcing portion.

In a second aspect, the embodiment of the present invention further provides an anti-torsion suspension structure, including the rear suspension body and the rear suspension support, the rear suspension body passes through the third connecting portion with the rear suspension support rotates to be connected.

With reference to the second aspect, in a possible implementation manner, an arc-shaped avoiding groove is formed in a side surface, facing the second connecting portion, of the rear suspension body.

In a third aspect, the embodiment of the present invention further provides a vehicle, including the anti-torsion suspension structure.

The utility model provides a back suspension support compares with prior art, and beneficial effect lies in: the rear suspension bracket is simultaneously provided with a first connecting part for mounting the power assembly and a second connecting part for mounting the speed change assembly; for fuel vehicles and hybrid vehicles, the rear suspension bracket is connected to the engine and the transmission at the same time, so that the reaction force of the rear suspension bracket on the engine and the transmission can be averagely shared when the power assembly is in large torque, the problems of breakage and cracking of the suspension, the engine, the transmission and other related parts under the action of large torque are avoided, the working reliability of the whole vehicle is improved, the driving faults are avoided and reduced, and the maintenance cost is reduced; for the electric vehicle type, the rear suspension support is connected to the motor and the speed reducer simultaneously, and when the electric drive assembly is in large torque, the reaction force of the rear suspension support on the motor and the speed reducer can be shared on average, so that the problems of breakage and cracking of the suspension, the motor, the speed reducer and other related parts under the action of large torque are avoided, the reliability of the whole vehicle is improved, the driving faults are avoided and reduced, and the cost of maintenance is reduced.

The embodiment of the utility model provides an antitorque suspension structure and vehicle owing to adopted foretell back suspension support, to different motorcycle types, can both solve under the large moment of torsion effect, the problem of fracture, the fracture of parts such as suspension, engine, derailleur, motor, reduction gear improves the reliability and the security of whole car work.

Drawings

Fig. 1 is a schematic structural diagram of a rear suspension bracket according to an embodiment of the present invention;

fig. 2 is a first schematic structural diagram of an anti-torsion suspension structure according to an embodiment of the present invention;

fig. 3 is a structural schematic diagram ii of an anti-torsion suspension structure according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a rear suspension body according to an embodiment of the present invention;

FIG. 5 is a schematic front view of the rear suspension body of FIG. 4;

FIG. 6 is a schematic front view of the rear suspension body employed in FIG. 5;

description of reference numerals:

1. a rear suspension bracket body; 11. a first connection hole; 12. a first connection portion; 13. connecting a vibration isolation assembly; 14. a reinforcing portion; 15. a second connecting portion; 16. a second connection hole; 17. a third connecting portion; 18. a third connection hole;

2. a rear suspension body; 21. a suspended vibration isolation assembly; 211. suspending the inner core; 212. a main spring rubber body; 213. suspending the outer sleeve; 22. an arc-shaped avoiding groove;

3. and connecting the bolts.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3 together, a rear suspension bracket according to the present invention will now be described. The rear suspension bracket comprises a rear suspension bracket body 1, wherein the rear suspension bracket body 1 is provided with a first connecting part 12 connected with a power assembly, a second connecting part 15 connected with a speed change assembly and a third connecting part 17 connected with a rear suspension body 2.

Compared with the prior art, the rear suspension bracket provided by the embodiment is simultaneously provided with the first connecting part 12 for mounting the power component and the second connecting part 15 for mounting the speed change component; for fuel vehicles and hybrid vehicles, the rear suspension bracket is connected to the engine and the transmission at the same time, so that the reaction force of the rear suspension bracket on the engine and the transmission can be averagely shared when the power assembly is in large torque, the problems of fracture and cracking of related parts such as the rear suspension, the engine and the transmission under the action of large torque are avoided, the working reliability of the whole vehicle is improved, the driving faults are avoided and reduced, and the maintenance cost is reduced; for the electric vehicle type, the rear suspension support is connected to the motor and the speed reducer simultaneously, and when the electric drive assembly is in large torque, the reaction force of the rear suspension support on the motor and the speed reducer can be averagely shared, so that the problems of breakage and cracking of associated parts such as the rear suspension, the motor and the speed reducer under the action of large torque are avoided, the reliability of the whole vehicle operation is improved, the driving faults are avoided and reduced, and the maintenance cost is reduced.

It should be noted that, the power assembly is referred to as an engine or an electric motor, and the speed changing assembly is a transmission or a speed reducer.

In some embodiments, referring to fig. 1 to 3, the first connecting portion 12 is provided with a plurality of first connecting holes 11, the third connecting portion 17 is provided with a third connecting hole 18, and a line connecting the centers of any two first connecting holes 11 and the center of the third connecting hole 18 forms a triangular structure (see a two-dot chain line in fig. 3). Specifically, the rear suspension bracket is provided with an engine or a motor through two first connecting holes 11, and the reaction force of the rear suspension bracket on the engine or the motor can be evenly distributed through two connecting force points when the power assembly is in high torque, so that the cracking problem of related parts is reduced; meanwhile, the three connecting holes form a triangular structure to form a triangular connecting force point, so that the stability and the stress uniformity of the rear suspension support are further improved, and the large-torque resistance is improved.

Based on the two first connecting holes 11, referring to fig. 1 to 3, as an improved embodiment of the rear suspension bracket, the second connecting portion 15 is provided with a plurality of second connecting holes 16, the third connecting portion 17 is provided with a third connecting hole 18, and a connecting line of the centers of any two second connecting holes 16 and the center of the third connecting hole 18 forms a triangular structure (see the two-dot chain line in fig. 1). The rear suspension support of this embodiment has 4 connecting holes in total, is connected with engine or motor through two connecting bolt 3, is connected with derailleur or reduction gear through two connecting bolt 3. For various powered vehicle models: the engine and the speed changer or the motor and the speed reducer are both provided with two connecting holes which are simultaneously connected with the rear suspension bracket, so that the reaction force of the suspension bracket to the engine and the speed changer or the motor and the speed reducer can be averagely shared when the power assembly has large torque. The intensity and the mode of the rear suspension support that this embodiment provided are obviously superior to current structure, can promote the driving reliability of whole car. Meanwhile, the two triangular structures are formed by the connecting force points of the rear suspension support, so that the rear suspension support has better stability and stress uniformity, the stress uniformity of the whole rear suspension support can be improved, the transmission reliability is improved, and the cracking of related parts is avoided.

In order to make the rear suspension bracket uniformly and stably stressed and reduce the vibration noise, referring to fig. 1 to 3, the first connecting hole 11, the second connecting hole 16 and the third connecting hole 18 of the present embodiment are all provided with a connecting vibration isolating sleeve assembly. The engine and the speed changer or the motor and the speed reducer are connected with the rear suspension bracket through the connecting vibration isolation sleeve component. The connecting vibration isolation sleeve component has the effects of buffering, damping and torque conversion.

Specifically, the power assembly and the speed change assembly are both connected with the rear suspension bracket through the connecting bolt 3.

As a specific implementation mode of the vibration isolation sleeve assembly, the connection vibration isolation sleeve assembly comprises a shaft sleeve inner core, a shaft sleeve rubber body and a shaft sleeve outer pipe, wherein the shaft sleeve rubber body is sleeved on the shaft sleeve inner core, and the shaft sleeve outer pipe is sleeved on the shaft sleeve rubber body; the sleeve outer tube is fitted into the first coupling hole 11, the second coupling hole 16, and the third coupling hole 18. Wherein, connect the vibration isolation cover subassembly and adopt vulcanization technology integrated into one piece. The bolt is connected with the shaft sleeve inner core, the shaft sleeve rubber body plays a role in buffering and vibration reduction, and the shaft sleeve outer pipe is pressed in the connecting hole in an interference mode.

Since the connection vibration isolation sleeve assemblies in the connection holes have the same structure and function, even if the connection holes have different sizes, the connection vibration isolation sleeve assemblies with different sizes are not separately marked herein.

As shown in fig. 1 to 3, on the basis that the first connection hole 11, the second connection hole 16 and the third connection hole 18 are provided on the rear suspension bracket body 1, the first connection portion 12 and the third connection portion 17 are respectively provided at both ends of the rear suspension bracket body 1, and the second connection portion 15 is located between the first connection portion 12 and the third connection portion 17; the second connecting portion 15 extends toward the shift assembly, and the second connecting portion 15 has a support plane that supports the shift assembly. The stability and the reliability of the speed change component support are improved.

Fig. 1 to 3 show another embodiment of the rear suspension bracket, and a side of the rear suspension bracket body 1 facing the second connecting portion 15 is provided with a convex reinforcing portion 14. The position that three connecting portion intersect sets up reinforcing part 14, improves suspension support's rigidity and intensity, and then can improve the reaction force support of big moment of torsion to avoid the problem of rear suspension support fracture, improve the operational reliability of whole car.

Based on the same inventive concept, referring to fig. 2 to 6, an embodiment of the present application further provides an anti-torsion suspension structure, which includes a rear suspension body 2 and the rear suspension bracket, wherein the rear suspension body 2 is rotatably connected to the rear suspension bracket through a third connecting portion 17. Specifically, the third connecting portion 17 is provided with a third connecting hole 18, and the third connecting hole 18 is internally provided with a connecting vibration isolation assembly 13, so that the vibration isolation assembly has the functions of buffering vibration and converting torque.

Wherein, the rear suspension body 2 is kept away from the one end of being connected with third connecting portion 17 and is equipped with the fourth connecting hole, is equipped with suspension vibration isolation subassembly 21 in the fourth connecting hole for connect the sub vehicle frame of vehicle, have the vibration isolation, spacing effect.

In this embodiment, power component, variable speed subassembly and rear suspension body 2 all pass through connecting bolt 3 and rear suspension leg joint, and wherein, the diameter of axle sleeve inner core all is greater than connecting bolt 3's diameter, has fine connection stability. The connection position is provided with the buffer function of connecting the vibration isolation assembly 13, so that the stress of the support is more uniform and smooth. Due to the elastic buffer of the connection vibration isolation assembly 13 and the clearance fit between the inner core of the shaft sleeve and the connecting bolt 3, the inexhaustible connection vibration isolation can also absorb the dimensional tolerance of the connecting structure, so that the whole system has better installation stability.

Specifically, after the power assembly comprises a power component and a speed change component to generate torque, a rear suspension bracket (a main suspension bracket can be approximately regarded as being fixedly connected with the power assembly) transmits the torque to the rear suspension body 2, a shaft sleeve inner core of the rear suspension bracket has the function of converting the torque into force, and the rear suspension body 2 linearly transmits the force to the auxiliary frame. The subframe generates a reaction force on the rear suspension, thereby imparting a torsional resistance to the rear suspension system.

In this embodiment, referring to fig. 5, the suspension vibration isolation assembly 21 is similar to the structure of the connection vibration isolation assembly 13, and includes a suspension core 211, a main spring rubber body 212, and a suspension jacket 213. The diameter of the suspension inner core 211 of the suspension vibration isolation assembly 21 is larger than that of the shaft sleeve inner core connected with the vibration isolation assembly 13, the volume of the main spring rubber body 212 is larger, the overall rigidity of the suspension vibration isolation assembly 21 is smaller, and the suspension vibration isolation assembly has vibration isolation and limiting effects.

As an embodiment of the anti-torsion suspension structure provided by the present embodiment, referring to fig. 5, an arc-shaped avoiding groove 22 is provided on a side surface of the rear suspension body 2 facing the second connecting portion 15, and the existence of the arc-shaped avoiding groove 22 structure can make the suspension avoid the transmission with a short distance, so that the suspension system can be arranged in a more compact cabin space.

Based on the same inventive concept, the embodiment of the application also provides a vehicle comprising the anti-torsion suspension structure. Due to the adoption of the rear suspension bracket, the problems of breakage and cracking of parts such as a suspension, an engine, a transmission, a motor, a speed reducer and the like under the action of large torque can be solved for different vehicle types, and the working reliability and safety of the whole vehicle are improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A rear suspension mount, comprising: the rear suspension bracket comprises a rear suspension bracket body (1), wherein the rear suspension bracket body (1) is provided with a first connecting part (12) connected with a power assembly, a second connecting part (15) connected with a speed change assembly and a third connecting part (17) connected with the rear suspension body.

2. A rear suspension bracket according to claim 1, wherein the first connecting portion (12) is provided with a plurality of first connecting holes (11), the third connecting portion (17) is provided with a third connecting hole (18), and a connecting line of the centers of any two first connecting holes (11) and the center of the third connecting hole (18) forms a triangular structure.

3. A rear suspension bracket according to claim 2, wherein the second connecting portion (15) is provided with a plurality of second connecting holes (16), and the connecting line of the centers of any two of the second connecting holes (16) and the center of the third connecting hole (18) forms a triangular structure.

4. A rear suspension bracket according to claim 3, wherein a coupling vibration isolating sleeve assembly (13) is provided in each of the first coupling hole (11), the second coupling hole (16) and the third coupling hole (18).

5. The rear suspension bracket as claimed in claim 4, wherein said connecting vibration isolating sleeve assembly (13) comprises a sleeve inner core, a sleeve rubber body and a sleeve outer tube, said sleeve rubber body is sleeved on said sleeve inner core, and said sleeve outer tube is sleeved on said sleeve rubber body; the shaft sleeve outer pipe is assembled in the first connecting hole (11), the second connecting hole (16) and the third connecting hole (18).

6. A rear suspension bracket according to claim 1, characterized in that the first connecting portion (12) and the third connecting portion (17) are provided at both ends of the rear suspension bracket body (1), and the second connecting portion (15) is located between the first connecting portion (12) and the third connecting portion (17); the second connecting portion (15) extends toward the shift assembly, and the second connecting portion (15) has a support plane that supports the shift assembly.

7. A rear suspension bracket according to claim 6, characterized in that the side of the rear suspension bracket body (1) facing the second connecting portion (15) is provided with a raised reinforcing portion (14).

8. An anti-torsion suspension structure, characterized by comprising a rear suspension body (2) and a rear suspension bracket according to any one of claims 1-7, said rear suspension body (2) being rotatably connected to said rear suspension bracket by said third connecting portion (17).

9. The anti-torsion suspension arrangement according to claim 8, characterized in that the side of the rear suspension body (2) facing the second connection portion (15) is provided with an arc-shaped relief groove (22).

10. A vehicle comprising an anti-torsion suspension arrangement according to any one of claims 8-9.