CN219221117U - Suspension structure - Google Patents

Abstract

The utility model provides a suspension structure, and relates to the technical field of vehicles and motors. The suspension structure comprises two inner core terminals at two ends respectively, two polyurethane bushings respectively assembled with the two inner core terminals and a bushing outer tube assembled with the two polyurethane bushings in the connection sequence from inside to outside; the inner core terminal, the polyurethane bushing and the bushing outer tube are barrel-shaped, through holes are formed in the inner core terminal and the polyurethane bushing, the through holes of the polyurethane bushing are used for assembling the inner core terminal, and the through holes of the inner core terminal are used for assembling bolts. The suspension vibration isolation device can enable the displacement of the power assembly to be reduced on the premise of guaranteeing suspension vibration isolation, and achieves the effect of limiting the total displacement of braking and reducing impact feeling.

Description

a suspended structure

technical field

The utility model relates to the technical field of computers, in particular to the technical fields of vehicles and motors, in particular to a suspension structure.

Background technique

Due to the characteristics of the vehicle's power system, the torque of the engine or motor will reach a peak value within a short time of starting, which has higher requirements for the limit of the suspension structure.

The torque of the motor reaches its peak momentarily when starting, which makes the fatigue condition of the mount more severe, and requires higher requirements for the size of the mount bushing, which brings higher cost pressure. At present, the suspension bushes on the market are made of rubber. Rubber has excellent elasticity, tensile strength, elongation and other characteristics and has been widely used in suspension systems.

Utility model content

A suspension structure is provided, and the suspension structure includes two inner core terminals at both ends respectively, two polyurethane bushes respectively assembled with the two inner core terminals, and The bushing outer tube where the two polyurethane bushings are assembled; the inner core terminal, the polyurethane bushing and the bushing outer tube are barrel-shaped, and both the inner core terminal and the polyurethane bushing There are through holes, the through holes of the urethane bushing are used to fit the inner core terminal, the through holes of the inner core terminal are used to fit the bolts.

According to the solution of the utility model, the difficulty of the process can be reduced through the assembly of the polyurethane bushing, the inner core terminal and the outer tube of the bushing, and the linear section can be reduced at the same time, so that the powertrain The component displacement becomes smaller to achieve the effect of limiting the total displacement of the brake and reducing the impact feeling.

Description of drawings

Other characteristics, objects and advantages of the present disclosure will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1a is a schematic diagram of the suspension structure of the present disclosure;

Figure 1 b is a schematic diagram of a polyurethane bushing of a suspension structure according to the present disclosure;

2 is a schematic diagram of an inner core terminal of a suspension structure according to the present disclosure;

3 is a schematic illustration of a liner outer tube of a suspension structure according to the present disclosure.

Detailed ways

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

In the technical solution disclosed in this disclosure, the acquisition, storage and application of the user's personal information involved are in compliance with relevant laws and regulations, necessary confidentiality measures have been taken, and they do not violate public order and good customs.

It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and embodiments.

Figure 1a shows an example diagram of an embodiment of a suspension structure to which the present disclosure can be applied. In some cases, the proposed suspension structure can be used in electric vehicles, specifically, between the powertrain and the subframe.

Fig. 1a shows a suspension structure, which includes two inner core terminals, two polyurethane bushings and one bushing outer tube in the connection sequence from inside to outside. Specifically, the suspension structure includes two inner core terminals at both ends, two polyurethane bushings respectively assembled with the two inner core terminals, and a bushing outer tube assembled with the two polyurethane bushings . The inner core terminal, the polyurethane bushing, and the outer tube of the bushing are barrel-shaped, and there are through holes in the inner core terminal and the polyurethane bushing, and the through holes of the polyurethane bushing are used for assembly As for the inner core terminal, the through hole of the inner core terminal is used for assembling bolts. There are at least two first grooves on the outer surface of the polyurethane bush for assembling with the outer tube of the bush, and there are at least two second grooves on the outer surface of the polyurethane bush for vibration isolation.

In practice, there is a through hole in the center of both the core terminal and the polyurethane bushing, which are used for assembly. The vias make the two barrel-shaped. When the inner core terminal is assembled with the polyurethane bushing, the inner core terminal is on the inner side, and the polyurethane bushing is on the outer side. Specifically, the outer wall of the main pipe of the inner core terminal and the through hole of the polyurethane bushing are fitted together during assembly.

When the polyurethane bushing and the bushing outer tube are assembled, the polyurethane bushing can be completely or partially wrapped in the bushing outer tube.

The through hole of the inner core terminal is used to assemble the bolt, and the bolt is usually fixed and does not move after assembly.

The linear segment refers to a straight line whose stiffness remains constant in the measured stiffness curve, and is generally used to represent the static stiffness of the bushing. The reason for the small linear section design is to alleviate the impact of the powertrain in the engine compartment and reduce the vibration of the transmission to the driver's side.

In these implementations, on the outer surface of the polyurethane liner, there are two kinds of grooves. Specifically, the first groove is used for fitting with the outer tube of the liner. The second groove is used for vibration isolation.

As shown in Figure 1b, the figure shows the first groove 1 and the second groove 2 of the polyurethane bushing. In practice, there may be 4 first grooves 1 and 4 second grooves 2 on the polyurethane bushing.

The suspension structure provided by the above embodiments of the present disclosure can reduce the difficulty of the process and reduce the linear section through the assembly of the polyurethane bushing, the inner core terminal and the outer tube of the bushing, so that the vibration isolation of the suspension can be ensured The displacement of the powertrain is reduced to achieve the effect of limiting the total displacement of the brake and reducing the impact feeling. In this embodiment, the groove on the polyurethane bushing can be used to realize the assembly with the outer tube of the bushing and the effect of vibration isolation. Moreover, by setting the vibration isolation groove on the polyurethane bush, it can play the role of limiting the position of the equipment such as the motor.

In some optional implementation manners of any embodiment of the present disclosure, there is an extension 3 perpendicular to the main pipe of the inner core terminal at one end of the through hole of the inner core terminal, and the extension 3 is used for assembling bolts. Connect with bolts.

As shown in FIG. 2 , the inner core terminal and the extension of the inner core terminal are shown in the figure. During assembly, one side of the extension 3 (the side indicated by the marked line in the figure) is in contact with the bolt.

These implementation methods can better fit the bolt through the extension of the inner core terminal, so that the assembly with the bolt is more compact and firm.

In some optional implementations of any embodiment of the present disclosure, the depth of the second groove 2 of the polyurethane bushing is less than or equal to 2 mm.

Specifically, through the assembly of the polyurethane bushing, the inner core terminal and the bushing outer tube, the depth of the second groove 2 of the polyurethane bushing in the present disclosure can be very small, such as below 2 mm. Specifically, it can be as small as 1 millimeter, thereby effectively reducing the diameter of the bushing, that is, reducing the linear section, thereby improving the limiting effect.

Furthermore, polyurethane has the advantages of low density, light weight, structural diversity, stable material, high stiffness and low dynamic-to-static ratio. Under the premise of the same rigidity, polyurethane requires a smaller bushing diameter, which provides a rigidity curve consistent with that of the rubber structure. At the same time, the dynamic and static ratio is low, and the weight can be effectively reduced to further reduce the linear section.

Optionally, there are at least two protrusions on the inner side of the outer tube of the bushing for fitting with the first groove 1 of the polyurethane bushing.

Specifically, as shown in FIG. 3 , it shows that there are four protrusions on the inner wall of the outer tube of the bushing, which respectively fit into the four first grooves 1 of the polyurethane bushing. The protrusion on the inner wall of the outer tube of the liner fits with the groove of the polyurethane liner, which can help the tight fitting between the liner and the outer liner tube.

In some optional implementation manners of this embodiment, the material of the outer tube of the liner includes aluminum.

In this application, the outer tube of the bushing can be made of aluminum, which can be realized by differential pressure casting during mass production. In some cases, the liner outer tube may also include other materials, such as titanium. The aluminum bushing outer tube can effectively reduce the weight of the suspension structure and further improve the limit effect.

In some optional implementation manners of this embodiment, the material of the inner core terminal includes aluminum.

In the present utility model, the inner core terminal can be made of aluminum, which can be realized by differential pressure casting during mass production. In some cases, the core terminal may also include other materials, such as titanium. The aluminum inner core terminal can reduce the weight of the suspension structure and improve the limit effect on the basis of the polyurethane bushing.

The above description is only a preferred embodiment of the present disclosure and an illustration of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in this disclosure is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover the technical solutions made by the above-mentioned technical features or other technical solutions without departing from the above-mentioned idea. Other technical solutions formed by any combination of equivalent features. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this disclosure.

Claims (6)

1. A suspension structure, wherein the suspension structure includes, in order of connection from inside to outside, two core terminals at both ends, two polyurethane bushings assembled with the two core terminals, respectively, and a bushing outer tube assembled with the two polyurethane bushings;

the inner core terminal, the polyurethane bushing and the bushing outer tube are barrel-shaped, through holes are formed in the inner core terminal and the polyurethane bushing, the through holes of the polyurethane bushing are used for assembling the inner core terminal, and the through holes of the inner core terminal are used for assembling bolts;

the outer surface of the polyurethane bushing is provided with at least two first grooves for assembling with the bushing outer tube, and the outer surface of the polyurethane bushing is also provided with at least two second grooves for vibration isolation.

2. The suspension structure of claim 1, wherein,

one end of the through hole of the inner core terminal is provided with an extension perpendicular to the main pipe of the inner core terminal, and the extension is used for being connected with a bolt when the bolt is assembled.

3. The suspension structure of claim 1, wherein,

the depth of the second groove of the polyurethane bushing is less than or equal to 2 millimeters.

4. The suspension structure of claim 1, wherein,

at least two projections for fitting with the first recess of the polyurethane bushing are present on the inner side of the bushing outer tube.

5. The suspension structure of any one of claims 1-4, wherein,

the bushing outer tube is made of aluminum.

6. The suspension structure of any one of claims 1-4, wherein,

the inner core terminal is made of aluminum.

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