CN219406146U - Suspension beam assembly and power assembly mounting structure - Google Patents

Abstract

The utility model provides a suspension beam assembly, includes the suspension roof beam, and the suspension roof beam includes left suspension roof beam and right suspension roof beam, wherein, is provided with the fixed ring of integral type annular bush on left suspension roof beam and the right suspension roof beam and is used for connecting power assembly suspension support, and the fixed ring of bush is in an integral structure or through welding and/or riveting fixed connection with the suspension roof beam. The suspension beam assembly has a simple structure, does not need additional assembly working procedures on line, saves working hours and reduces the structural weight.

Description

Mounting structure for a suspension beam assembly and a power assembly

technical field

The utility model belongs to the field of automobiles, in particular to a suspension beam assembly and an engine mounting structure.

Background technique

With the development of the automobile industry and the increase in the demand for energy saving and emission reduction, the lightweight design of the body has become an important topic in the field of automobile structure design. As consumers have higher and higher requirements for driving comfort, a higher level of vibration reduction for the powertrain during driving is required, which puts higher requirements on the engine mount system. Existing engine mounts usually use independent metal components, one end of which is fixed to the frame or sub-frame by multiple bolts, and the other end is connected to the engine, which is large in size and heavy in weight, and the process of installing bolts often needs to be tightened sequentially with the help of high-precision guns, resulting in low installation efficiency.

Utility model content

The purpose of the utility model is to provide a suspension beam assembly, which simplifies the structure of the engine suspension system. The utility model also provides an engine mounting structure.

According to an embodiment of an aspect of the present invention, a suspension beam assembly is provided. The suspension beam assembly includes a suspension beam. The suspension beam includes a left suspension beam and a right suspension beam. A bushing fixing ring is provided on the suspension beam for connecting a powertrain suspension bracket.

The bushing fixing ring and the suspension beam are arranged in an integrated structure or fixedly connected by welding or riveting, and the installation bolts are omitted, thereby saving assembly man-hours; further, the omission of the installation bolts simplifies the structure of the connection surface between the bushing fixing ring and the suspension beam, and there is no need to set up flanges and other structures for mounting bolts, which simplifies the structure of the suspension beam parts and reduces the overall weight of the suspension beam.

Further, the bushing fixing ring is arranged on the upper surfaces of the left suspension beam and the right suspension beam. The weight of the powertrain is borne by the suspension beam itself, so that the structural design of the bushing fixing ring can be lighter and thinner, further reducing the structural weight.

Further, a reinforcing part is provided at the connection between the bushing fixing ring and the suspension beam. The reinforcement can increase the connection strength between the bush fixing ring and the suspension beam.

Further, one or two bushing fixing rings are respectively arranged on the left suspension beam and the right suspension beam. According to the specific requirements of the body structure design, a total of two, three or four support fixed points can be set on the suspension beam assembly, so that the powertrain can be fixed by two-point support, three-point support or four-point support.

According to an embodiment of another aspect of the present invention, a power assembly installation structure is provided, including a power assembly, a power assembly suspension bracket, and a suspension beam assembly. The power assembly is connected to the suspension beam assembly through the power assembly suspension bracket. The suspension beam assembly adopts any of the above suspension beam assemblies. The power assembly suspension bracket includes a bushing, and the bushing is in an interference fit with the bushing fixing ring. The power assembly installation structure simplifies the structural design, reduces the structural weight, reduces the use of high-precision guns, and improves the efficiency of assembly line assembly.

Further, the powertrain suspension bracket further includes a bracket body, and the bracket body is fixedly connected to the bush by bolts along the axial direction of the bush. The bracket body and the bushing are fixed by circumferential bolts to facilitate the installation of the powertrain.

Further, the suspension beam assembly is configured as a part of the sub-frame assembly. The suspension beam assembly is arranged on the sub-frame, which is beneficial to improve the vibration damping performance and safety of the vehicle.

Further, the power assembly installation structure further includes a third suspension support, the third suspension support is arranged on the sub-frame, and connects the power assembly and the sub-frame together. The third suspension support can provide additional support for the powertrain and balance the torque on the powertrain.

Further, the power assembly includes one or a combination of a fuel or gas engine, a power motor, and a range-extending generator. The power assembly connection structure is suitable for traditional power, new energy or hybrid vehicles.

Description of drawings

Fig. 1 is a schematic structural diagram of a suspension beam assembly in an embodiment;

Fig. 2 is a schematic diagram of the bushing installation structure in an embodiment;

Fig. 3 is a structural schematic diagram of the installation state of the power assembly in an embodiment;

Fig. 4a is a schematic diagram of the structure of the left suspension bracket in an embodiment;

Fig. 4b is a schematic diagram of the structure of the right suspension bracket in an embodiment;

Fig. 5 is a structural schematic diagram of a powertrain installation state in a pair of proportions.

The purpose of the above drawings is to describe the utility model in detail so that those skilled in the art can understand the technical concept of the utility model, but not intended to limit the utility model. For the sake of brevity, the above drawings only schematically show the structures related to the technical features of the utility model, and do not strictly follow the actual scale to draw the complete structure and all the details.

Detailed ways

The utility model will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment herein. The appearances of this phrase in various places in the specification are not necessarily referring to the same embodiment, nor are mutually exclusive independent or alternative embodiments defined. Those skilled in the art should understand that the embodiments herein can be combined with other embodiments without structural conflicts.

In the description of this article, unless otherwise specified and limited, the technical terms "installation", "connection", "connection" and so on should be understood in a broad sense, which may be a movable connection, a fixed connection or an integration. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

In the description herein, terms such as "upper", "lower", "left", "right", "horizontal", "longitudinal", "height", "length", "width" indicating orientation or positional relationship are intended to accurately describe the embodiment and simplify the description, rather than to limit that the parts or structures involved must have a specific orientation, be installed or operate in a specific orientation, and should not be construed as limiting the embodiments herein.

In the description herein, terms such as "first" and "second" are only used to distinguish different objects, and should not be understood as indicating relative importance or limiting the quantity, specific order or primary and secondary relationship of the described technical features. In the description herein, "plurality" means at least two.

At present, with the improvement of the pursuit of the driving experience of passenger cars, more and more attention is paid to the vibration reduction and quiet performance of the car. Therefore, the subframe has been used more and more as a structure capable of suppressing the vibration of the powertrain. A comparison example is shown in Figure 5, the subframe assembly includes a subframe 5 and a left suspension beam 1a and a right suspension beam 1b connected to the front end of the subframe 5, and the power assembly 4 is fixedly connected to the subframe assembly through a left suspension bracket 3'a, a right suspension bracket 3'b and a rear suspension bracket 4c. During the running of the vehicle, the vibration generated by the power assembly 4 can be weakened by the sub-frame assembly, thereby improving ride and driving experience. In the prior art solution, the left suspension bracket 3'a and the right suspension bracket 3'b are connected to the left suspension beam 1a and the right suspension beam 1b through the suspension connector 2', and the suspension connector 2' is usually configured as a semi-circular shape to press and fix the left suspension bracket 3'a and the right suspension bracket 3'b respectively on the left suspension beam 1a and the right suspension beam 1b. The suspension connector 2' needs to be fixedly connected to the left suspension beam 1a and the right suspension beam 1b through three fixing bolts 22'. In order to firmly fix the suspension connector 2' on the suspension beam, the suspension connector 2' is provided with three wings 21' extending outward, and the wings 21' are further provided with mounting holes for fixing bolts 22'. Therefore, on the one hand, in order to ensure the connection strength, the wing 21' needs to have a relatively large thickness to bear the weight of the powertrain, resulting in an increase in the structural weight; on the other hand, the installation requirements of the engine are very high, and the corresponding fixing bolts 22' need to be tightened sequentially with high-precision guns according to the designed torque, and the installation process is cumbersome and time-consuming.

In order to solve the above problems, an embodiment of one aspect of the present invention provides a suspension beam assembly, the structure of which is shown in Figure 1. The suspension beam assembly includes a left suspension beam 1a and a right suspension beam 1b, and ring-shaped one-piece bushing fixing rings 2 are respectively arranged on the upper surfaces thereof. Taking the position of the front of the vehicle, that is, the arrow H representing the normal traveling direction of the vehicle as the front, the front ends of the left suspension beam 1a and the right suspension beam 1b are respectively welded to the two ends of the front cross beam 6 to form a suspension beam assembly. The bushing fixing ring 2 is fixed on the upper surface of the left suspension beam 1a/right suspension beam 1b by welding, and is directly assembled online as a part of the suspension beam assembly during assembly. Since the fixing bolts 22' and wing parts 21' in the comparative example shown in Figure 5 are omitted, the suspension beam assembly achieves the effect of reducing the structural weight and simplifying the online assembly process. In a preferred embodiment, the bushing fixing ring 2 is provided with an extending reinforcement part 21a along the length direction of the left suspension beam 1a and the right suspension beam 1b, and a reinforcement part 21b extending longitudinally along the surface of the suspension beam is arranged between the suspension beams. In addition to the welding method in which the bushing fixing ring 2 protrudes from the upper surface of the left suspension beam 1a/right suspension beam 1b as shown in FIG. 1 , in some embodiments, grooves can also be made on the surface of the left suspension beam 1a/right suspension beam 1b, and the bushing fixing ring 2 is half buried in the left suspension beam 1a/right suspension beam 1b for welding and fixing. In some embodiments, the bushing fixing ring 2 can also be fixedly connected by riveting or set as a structure integrally punched and formed with the suspension beam. In some other embodiments, two bushing fixing rings 2 may be provided on each side or both sides of the left suspension beam 1a/right suspension beam 1b to form a three-point or four-point fixation.

In one embodiment, the installation structure of the power assembly using the suspension beam assembly in the above embodiment is shown in Figure 3. The left suspension beam 1a, the right suspension beam 1b, the front cross beam 6 and the subframe 5 are connected together to form a frame-shaped sub-frame assembly. The power assembly 4 is placed horizontally in the frame structure surrounded by the sub-frame assembly. Connected to the subframe 5. Wherein, as shown in FIG. 4a, the left suspension bracket 3a includes a bracket body 32a. One side of the bracket body 32a is provided with a fixing bolt 33 to fix the bracket body 32a with the power assembly 4, and the other side is provided with a bushing 31. The bushing 31 is made of elastic material such as rubber, and can be inserted into the bushing fixing ring 2 to form an interference fit, so as to realize connection and vibration reduction. The structure of the right suspension bracket 3b is similar to that of the left suspension bracket 3a, as shown in FIG. The bolt 34 passing through the bushing 31 in the axial direction fixes the bushing 31 and the right suspension bracket 32 b together (the connection method is the same as that of the left bracket body 32 a ).

In some embodiments, the suspension beam assembly can be configured as an integral structure with the sub-frame 5 , and in a preferred embodiment, the left suspension beam 1a and the right suspension beam 1b are respectively connected to the sub-frame 5 by bolts at the rear ends. Setting the left suspension beam 1a/right suspension beam 1b and the sub-frame 5 as separate parts can allow the same sub-frame 5 to be adapted to different suspension beam assemblies, thereby improving the flexibility of the production line.

In some embodiments, for example, in a model with a lower power output of the powertrain 4, the rear suspension support 3c can be omitted, so that the powertrain 4 can be installed in a two-point support manner; In the embodiment, the third suspension support can also be arranged on the front beam 6 according to actual needs.

In one embodiment, the installation method of the power assembly 4 is as follows: firstly, the rear ends of the left suspension beam 1a and the right suspension beam 1b are fixedly connected to the sub-frame 5 through bolts respectively; next, the bushing 31 is inserted into the bushing fixing ring 2 on the left and right sides to form an interference fit to realize the fixed installation; then the left suspension bracket 32a and the right suspension bracket 32b are respectively fixedly installed on the left and right sides of the power assembly 4 by using the fixing bolts 33; finally, the power assembly 4 is hoisted to the left suspension beam 1a and the right suspension beam Between 1b, the left suspension bracket 32a, the right suspension bracket 32b are aligned with the bushings 31 on the left and right sides respectively, and the bushing 31 is fixedly connected with the left suspension bracket 32a and the right suspension bracket 32b through the bolts 34 screwed in along the axial direction of the bushing 31, so as to realize the installation of the powertrain 4. In this type of mounting, the bolt 34 bears the weight of the powertrain 4 with its own shear strength. In different embodiments, bolts 34 of different sizes and strengths may be selected depending on the weight of the powertrain.

It should be understood that the above installation manner is not exclusive, and those skilled in the art may make reasonable adjustments to the parts or steps involved in it according to the specific conditions in different embodiments.

In different embodiments, the power assembly 4 may include different forms, including but not limited to a gasoline engine, a diesel engine, a natural gas engine, a hydrogen-powered engine, a power motor driven by a lithium battery or a fuel cell, a generator of an extended-range electric vehicle, or a hybrid engine composed of the above-mentioned engines and motors.

The purpose of the above embodiments is to further describe the utility model in detail in conjunction with the accompanying drawings, so that those skilled in the art can understand the technical concept of the utility model. Within the scope of the claims of the utility model, optimizing or equivalently replacing the structures of the parts involved, and combining the implementation methods in different embodiments without conflicts between structures and principles, all fall within the protection scope of the utility model.

Claims (10)

1. A suspension beam assembly, comprising a suspension beam, the suspension beam comprises a left suspension beam and a right suspension beam, characterized in that,

the left suspension beam and the right suspension beam are provided with bushing fixing rings for connecting the suspension bracket of the power assembly, the bushing fixing rings are configured into an integral annular piece, and the bushing fixing rings and the suspension beams are in an integral structure or fixedly connected through welding and/or riveting.

2. The suspension beam assembly of claim 1, wherein the bushing retainer ring is disposed on upper surfaces of the left and right suspension beams.

3. A suspension beam assembly according to claim 1 or 2, wherein the connection of the bushing retainer ring and the suspension beam is provided with a reinforcement.

4. A suspension beam assembly according to claim 1 or 2, wherein one or two of the bushing securing rings are provided on the left and right suspension beams, respectively.

5. The utility model provides a power assembly mounting structure, includes power assembly, power assembly suspension support and suspension beam assembly, the power assembly is through power assembly suspension support with suspension beam assembly is connected, its characterized in that, suspension beam assembly adopts the suspension beam assembly of any one of claims 1 to 4, power assembly suspension support includes the bush, the bush with bush solid fixed ring becomes interference fit.

6. The locomotion assembly mounting structure of claim 5, wherein the locomotion assembly suspension bracket further comprises a bracket body fixedly connected with the bushing by a bolt along an axial direction of the bushing.

7. The locomotion assembly mounting structure of claim 5 or 6, wherein the suspension beam assembly is configured as a part of a subframe assembly.

8. The powertrain mounting structure of claim 7, wherein the subframe assembly includes a subframe and the suspension beam assembly is fixedly coupled to the subframe by bolts.

9. The powertrain mounting structure of claim 7, further comprising a third suspension support disposed on the subframe connecting the powertrain with the subframe.

10. The powertrain mounting structure of claim 5 or 6, wherein the powertrain includes one or a combination of two of a fuel or gas engine, a power motor, an extended range generator.