Rear suspension structure and vehicle

Abstract

The utility model provides a rear suspension structure and a vehicle, and belongs to the technical field of vehicles, the rear suspension structure comprises a rear suspension body, one end of the rear suspension body connected with an auxiliary frame is provided with at least two first mounting holes along the Z direction of a vehicle body, and the at least two first mounting holes are sequentially arranged along the Y direction of the vehicle body; a second mounting hole is formed in the end, connected with the power assembly, of the rear suspension body in the Y direction of the automobile body, a large bush body is mounted in the first mounting hole, and a small bush body is mounted in the second mounting hole. According to the rear suspension structure provided by the utility model, the large bushing main bodies and the small bushing main bodies are axially vertical, so that the torsion resistance of the rear suspension can be improved to a certain extent, meanwhile, the at least two large bushing main bodies can also increase the X / Y / Z-direction rigidity of the rear suspension to a certain extent, the torsion resistance and the vibration resistance of the suspension are improved, the rubber main bodies are prevented from being abraded, and the service life of the rear suspension is prolonged. And the durability is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and more specifically relates to a rear suspension structure and a vehicle. Background Art

[0002] With the rapid development of the automobile industry, in order to comply with the concept of energy conservation and emission reduction, the market share of hybrid vehicles has gradually increased.

[0003] In hybrid vehicles, the number of models that use the engine directly connected to the drive motor for power output is increasing. The weight of this powertrain increases, and the power torque output is also increasing. Under vehicle starting, rapid acceleration, rapid deceleration and other operating conditions, large torque output will occur. The engine rear suspension usually adopts a pull-rod rear suspension with a rubber bushing. The suspension withstands large torque changes to resist torsion. After long-term use, the suspension rubber is severely worn, the durability is reduced, and the risk of cracking of the rubber body increases. Utility Model Content

[0004] The utility model aims to provide a rear suspension structure, aiming to solve the problem that the existing suspension has poor torsional resistance and causes serious rubber wear under the condition of torque output of the vehicle.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a rear suspension structure, including a rear suspension body, wherein one end of the rear suspension body connected to the subframe is provided with at least two first mounting holes along the Z direction of the vehicle body, and at least two of the first mounting holes are arranged in sequence along the Y direction of the vehicle body, and one end of the rear suspension body connected to the powertrain is provided with a second mounting hole along the Y direction of the vehicle body, a large bushing body is installed in the first mounting hole, and a small bushing body is installed in the second mounting hole.

[0006] In a possible implementation, two second mounting holes are sequentially arranged along the Y direction of the vehicle body, and the two second mounting holes are respectively arranged on both sides of one end of the rear suspension body connected to the powertrain.

[0007] In a possible implementation, the large bushing body includes a large bushing outer tube, a large bushing rubber body and a large bushing inner core which are sequentially inserted from outside to inside, and the large bushing outer tube, the large bushing rubber body and the large bushing inner core are all vulcanized and connected.

[0008] In a possible implementation, the upper end surface and the lower end surface of the large bushing rubber body are respectively provided with a plurality of limit blocks extending along the Z direction of the vehicle body, and the limit blocks located on the upper end surface or the lower end surface of the large bushing rubber body are symmetrical in pairs.

[0009] In a possible implementation, the first mounting hole is an oblong hole, and the large bushing rubber body is in a shape that matches the inner contour of the first mounting hole.

[0010] In a possible implementation, the small bushing body includes a small bushing outer tube, a small bushing rubber body and a small bushing inner core which are sequentially inserted from outside to inside, and the small bushing outer tube, the small bushing rubber body and the small bushing inner core are all vulcanized and connected.

[0011] In a possible implementation, the large bushing body and the first mounting hole, as well as the large bushing body and the second mounting hole are installed by interference fit.

[0012] In a possible implementation, a weight-reducing groove is provided on the Z-direction end surface of the rear suspension body.

[0013] In a possible implementation, the rear suspension body is made of cast aluminum.

[0014] The beneficial effect of a rear suspension structure provided by the utility model is that: compared with the prior art, the rear suspension body is connected to one end of the subframe by setting at least two first mounting holes along the Z direction of the vehicle body, and at least two first mounting holes are arranged along the Y direction of the vehicle body, and a large bushing body is correspondingly installed in the first mounting hole. A second mounting hole is set along the Y direction of the vehicle body at one end of the rear suspension body connected to the powertrain, and a small bushing body is correspondingly installed in the second mounting hole. The large bushing body and the small bushing body are axially perpendicular, which can improve the torsion resistance of the rear suspension to a certain extent. At the same time, at least two large bushing bodies can also increase the stiffness of the rear suspension in the X / Y / Z direction to a certain extent, improve the torsion resistance and vibration resistance of the suspension, avoid wear of the rubber body, and improve the durability.

[0015] The utility model also provides a vehicle, comprising the above-mentioned rear suspension structure.

[0016] The beneficial effect of a vehicle provided by the utility model is that: compared with the prior art, due to the use of the above-mentioned rear suspension structure, it has the same beneficial effect as the rear suspension structure, can increase the X / Y / Z-direction stiffness of the rear suspension, improve the torsional resistance and vibration resistance of the suspension, avoid wear of the rubber body, and the durability is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A structural schematic diagram of a rear suspension structure provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of a rear suspension body provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of a large bushing body provided in an embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of a small bushing body provided in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 100, rear suspension body; 110, first mounting hole; 120, second mounting hole; 130, weight-reducing groove; 200, large bushing body; 210, large bushing outer tube; 220, large bushing rubber body; 230, large bushing inner core; 240, limit block; 300, small bushing body; 310, small bushing outer tube; 320, small bushing rubber body; 330, small bushing inner core. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] See also Figures 1 to 4 Now, a rear suspension structure provided by the utility model is described. A rear suspension structure includes a rear suspension body 100, at one end of the rear suspension body 100 connected to the subframe is provided with at least two first mounting holes 110 along the Z direction of the vehicle body, and the at least two first mounting holes 110 are arranged in sequence along the Y direction of the vehicle body, at one end of the rear suspension body 100 connected to the power assembly is provided with a second mounting hole 120 along the Y direction of the vehicle body, a large bushing body 200 is installed in the first mounting hole 110, and a small bushing body 300 is installed in the second mounting hole 120.

[0026] The utility model provides a rear suspension structure. Compared with the prior art, the rear suspension body 100 is connected to one end of the subframe by setting at least two first mounting holes 110 along the Z direction of the vehicle body. The at least two first mounting holes 110 are arranged along the Y direction of the vehicle body, and the large bushing body 200 is correspondingly installed in the first mounting hole 110. The end of the rear suspension body connected to the powertrain is set with a second mounting hole 120 along the Y direction of the vehicle body, and the small bushing body 300 is correspondingly installed in the second mounting hole 120. The large bushing body 200 and the small bushing body 300 are axially perpendicular, which can improve the torsion resistance of the rear suspension to a certain extent. At the same time, at least two large bushing bodies 200 can also increase the rigidity of the rear suspension in the X / Y / Z direction to a certain extent, improve the torsion resistance and vibration resistance of the suspension, avoid wear of the rubber body, and improve the durability.

[0027] See also Figure 1 and Figure 2 There are two second mounting holes 120 arranged in sequence along the Y direction of the vehicle body, and the two second mounting holes 120 are respectively set on both sides of one end of the rear suspension body 100 connected to the powertrain. The two small bushing bodies 300 are correspondingly installed in the two second mounting holes 120 to form a secondary vibration reduction structure, which can further improve the vibration isolation effect of the suspension.

[0028] Optionally, the number of the first mounting holes 110 is two, and two large bushing bodies 200 are correspondingly mounted in the two first mounting holes 110. Thus, two large bushing bodies 200 and two small bushing bodies 300 are respectively formed at both ends of the rear suspension body 100.

[0029] Please refer to Figure 3 The large bushing body 200 includes a large bushing outer tube 210, a large bushing rubber body 220 and a large bushing inner core 230 which are sequentially mounted from the outside to the inside. The large bushing outer tube 210, the large bushing rubber body 220 and the large bushing inner core 230 are all vulcanized and connected so that the three constitute a more integrated structure, which can effectively improve the X / Y / Z direction rigidity and avoid axial sliding during the force-bearing process. In addition, since the large bushing rubber body 220 itself has a relatively small rigidity, it is beneficial to reduce the transmission of vibration. On the one hand, the large bushing rubber body 220 can be connected to the first mounting hole 110 through the large bushing outer tube 210 to achieve the fixation of the large bushing inner tube. On the other hand, when the torque output by the power system is relatively small, the large bushing rubber body 220 can provide rigidity to the large bushing inner tube to achieve the effect of limiting displacement.

[0030] The upper and lower end surfaces of the large bushing rubber body 220 are respectively provided with a plurality of limit blocks 240 extending along the Z direction of the vehicle body, and the limit blocks 240 located on the upper or lower end surface of the large bushing rubber body 220 are symmetrical in pairs.

[0031] Specifically, the limit block 240 is vulcanized and connected to the large bushing rubber body 220. Four limit blocks 240 are arranged on the upper and lower end faces of the large bushing rubber body 220. The four limit blocks 240 are symmetrical and spaced apart from each other. When the power assembly moves in the Z direction, the limit blocks 240 on the same end face collide with the frame to avoid metal collision noise.

[0032] Optionally, the first mounting hole 110 is an oblong hole, and the large bushing rubber body 220 is a shape that matches the inner contour of the first mounting hole 110. The oblong hole-shaped first mounting hole 110 and the large bushing rubber body 220 are mutually adapted, which can reduce the tendency of the large bushing body 200 to rotate circumferentially in the first mounting hole 110.

[0033] Please refer to Figure 4 The small bushing body 300 includes a small bushing outer tube 310, a small bushing rubber body 320 and a small bushing inner core 330 which are sequentially mounted from the outside to the inside. The small bushing outer tube 310, the small bushing rubber body 320 and the small bushing inner core 330 are all vulcanized and connected so that the three constitute a more integrated structure, which can effectively improve the X / Y / Z direction rigidity and avoid axial sliding during the force-bearing process. In addition, since the small bushing rubber body 320 itself has a relatively small rigidity, it is beneficial to reduce the transmission of vibration. On the one hand, the small bushing rubber body 320 can be connected to the second mounting hole 120 through the small bushing outer tube 310 to achieve the fixation of the small bushing inner tube. On the other hand, when the torque output by the power system is relatively small, the small bushing rubber body 320 can provide rigidity to the small bushing inner tube to achieve the effect of limiting displacement.

[0034] Specifically, the large bushing body 200 is installed with the first mounting hole 110 by interference fit, ensuring the stability of the large bushing body 200 installed in the first mounting hole 110 and preventing the large bushing body 200 from accidentally coming out of the first mounting hole 110. The large bushing body 200 is also installed with the second mounting hole 120 by interference fit, ensuring the stability of the small bushing body 300 installed in the second mounting hole 120 and preventing the small bushing body 300 from accidentally coming out of the second mounting hole 120.

[0035] Optionally, a weight-reducing groove 130 is provided on the Z-direction end surface of the rear suspension body 100. There are multiple weight-reducing grooves 130, which can be provided in the middle of the rear suspension body 100, which can effectively reduce the weight of the rear suspension body 100 and reduce costs.

[0036] Preferably, the rear suspension body 100 is made of cast aluminum. Under the premise of ensuring its rigidity, its own weight will not be too large, and the profile can be directly extruded. The process is simple, which is conducive to improving production efficiency and reducing costs.

[0037] Based on the same concept, the utility model also provides a vehicle that uses the above-mentioned rear suspension structure, which can increase the X / Y / Z-direction stiffness of the rear suspension, improve the torsional and vibration resistance of the suspension, avoid wear of the rubber body, and improve durability.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rear suspension structure, characterized in that: The invention comprises a rear suspension body (100), wherein one end of the rear suspension body (100) connected to the subframe is provided with at least two first mounting holes (110) along the Z direction of the vehicle body, and the at least two first mounting holes (110) are arranged in sequence along the Y direction of the vehicle body, and one end of the rear suspension body (100) connected to the power assembly is provided with a second mounting hole (120) along the Y direction of the vehicle body, a large bushing body (200) is installed in the first mounting hole (110), and a small bushing body (300) is installed in the second mounting hole (120).

2. A rear suspension structure according to claim 1, characterized in that: Two of the second mounting holes (120) are sequentially arranged along the Y direction of the vehicle body, and the two second mounting holes (120) are respectively arranged on both sides of one end of the rear suspension body (100) connected to the power assembly.

3. A rear suspension structure according to claim 1 or 2, characterized in that: The large bushing body (200) comprises a large bushing outer tube (210), a large bushing rubber body (220) and a large bushing inner core (230) which are sequentially mounted from outside to inside, and the large bushing outer tube (210), the large bushing rubber body (220) and the large bushing inner core (230) are all vulcanized and connected.

4. A rear suspension structure as claimed in claim 3, characterized in that: The upper end surface and the lower end surface of the large bushing rubber body (220) are respectively provided with a plurality of limit blocks (240) extending along the Z direction of the vehicle body, and the limit blocks (240) located on the upper end surface or the lower end surface of the large bushing rubber body (220) are symmetrical in pairs.

5. A rear suspension structure as claimed in claim 3, characterized in that: The first mounting hole (110) is an oblong hole, and the large bushing rubber body (220) is a shape that matches the inner contour of the first mounting hole (110).

6. A rear suspension structure according to claim 1 or 2, characterized in that: The small bushing body (300) comprises a small bushing outer tube (310), a small bushing rubber body (320) and a small bushing inner core (330) which are sequentially mounted from outside to inside, and the small bushing outer tube (310), the small bushing rubber body (320) and the small bushing inner core (330) are all vulcanized and connected.

7. A rear suspension structure as claimed in claim 1 or 2, characterized in that: The large bushing body (200) and the first mounting hole (110), as well as the large bushing body (200) and the second mounting hole (120) are installed by interference fit.

8. A rear suspension structure as claimed in claim 1 or 2, characterized in that: A weight-reducing groove (130) is provided on the Z-direction end surface of the rear suspension body (100).

9. A rear suspension structure as claimed in claim 1 or 2, characterized in that: The rear suspension body (100) is made of cast aluminum.

10. A vehicle, characterized in that: It comprises a rear suspension structure as described in any one of claims 1 to 9.

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