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CN-116588195-B - SUV and car generalized rear auxiliary frame and car

CN116588195BCN 116588195 BCN116588195 BCN 116588195BCN-116588195-B

Abstract

The front pipe beam comprises a front pipe beam, a rear pipe beam, front suspension mounting brackets and longitudinal beams, wherein the two longitudinal beams are arranged in parallel, the rear pipe beam and the front pipe beam are arranged at intervals and fixedly connected between the two longitudinal beams in a lap joint mode to form a frame main body, the middle of the front pipe beam is an arched straight section, the two front suspension mounting brackets are symmetrically arranged on the arched straight section and opposite to the arched direction, and the frame main body can be used on the front side and the back side. The auxiliary frame after the structure can give consideration to the change of the motor space position height of SUV model and Sedan model, and simultaneously, the auxiliary frame assembly after the structure can be used for all parts of different parts, but the auxiliary parts can be used commonly, and other auxiliary parts are not needed to be added, so that the development cost of a mould is saved.

Inventors

  • LI ZHIQIANG
  • MA TAOFENG
  • GUO TING
  • SHAO YINGCHEN

Assignees

  • 奇瑞新能源汽车股份有限公司

Dates

Publication Date
20260505
Application Date
20230630

Claims (8)

  1. 1. The rear auxiliary frame for the universalization of the SUV and the sedan is characterized by comprising a front pipe beam (1), a rear pipe beam (2), a front suspension mounting bracket (7) and two longitudinal beams (3), wherein the two longitudinal beams (3) are arranged in parallel between the rear pipe beam (2) and the front pipe beam (1) to form a frame main body, the middle part of the front pipe beam (1) is an arched straight section, and the two front suspension mounting brackets (7) are symmetrically arranged on the arched straight section and are opposite to the arched direction; When the SUV is in a vehicle type, the middle arched straight section of the front pipe beam is upwards, and a suspension mounting bracket (7) arranged on the front pipe beam is downwards used for mounting a motor of the SUV; When the car is in a car type, the front pipe beam rotates 180 degrees, the middle arched straight section is downward, and the suspension mounting bracket (7) arranged on the front pipe beam is upward and is used for mounting a motor of the car type.
  2. 2. The rear subframe for the universalization of the SUV and the sedan according to claim 1, wherein front mounting point sleeves (4) are respectively arranged at two ends of a front tube beam (1) and a rear tube beam (2), one end of a longitudinal beam (3) is fixedly connected with the front tube beam (1) in a welding way, a rear mounting point sleeve (14) is arranged at the other end of the longitudinal beam (3), and a rear suspension bushing (8) is arranged in the rear mounting point sleeve (14).
  3. 3. A rear subframe for the universalization of SUV and sedan according to claim 1, characterized in that the junction of the front tubular rail (1) and the longitudinal rail (3) is provided with a reinforcing lining (12).
  4. 4. A rear subframe for a SUV and a car as claimed in claim 1, characterized in that a lower fender bracket (9) and a rear tie rod bracket (6) are provided under one of the stringers (3), and a rear control arm bracket (5) is provided under the other stringer (3).
  5. 5. A rear subframe for a SUV and a car as claimed in claim 1, characterized in that the rear tubular rail (2) is provided with a number of water pipe fixing brackets (10).
  6. 6. A rear subframe for a SUV and a car as claimed in claim 1, characterized in that the rear tubular rail (2) is provided with a rear suspension bracket (13).
  7. 7. A rear subframe for a SUV and a car as claimed in claim 1, wherein a harness fixing bracket (11) is provided on the front tube beam (1).
  8. 8. An automobile comprising a SUV and passenger car generalized rear subframe according to any one of claims 1 to 7.

Description

SUV and car generalized rear auxiliary frame and car Technical Field The invention relates to the field of automotive suspensions, in particular to a rear auxiliary frame for universalization of SUVs and sedans and an automobile. Background The rear auxiliary frames on the market are various. For the purpose of platform generalization, some factories completely use the same auxiliary frame, and the development cost is reduced, but the whole vehicle performance is sacrificed (particularly SUV vehicle type and Sedan Sedan vehicle type, and different whole vehicle heights correspond to different wheel center coordinates). Because the same auxiliary frame is used, under the condition of ensuring the posture of the whole Sedan Sedan, if the Sedan Sedan is directly copied to an SUV model, the wheel center travel of a suspension is necessarily sacrificed, and the whole vehicle performance is influenced. Disclosure of Invention The invention aims to provide a rear auxiliary frame and an automobile for universalization of an SUV and a sedan, and aims to solve the problem that the suspension wheel center travel is inconsistent and the whole automobile performance is affected when the same auxiliary frame is used by the sedan and the SUV. In order to achieve the above purpose, the present invention adopts the following technical scheme: A universal rear auxiliary frame for SUVs and cars comprises a front pipe beam, a rear pipe beam, a front suspension mounting bracket and two longitudinal beams, wherein the two longitudinal beams are arranged in parallel between the rear pipe beam and the front pipe beam to form a frame main body, the middle part of the front pipe beam is an arched straight section, the two front suspension mounting brackets are symmetrically arranged on the arched straight section and opposite to the arched direction, and the frame main body can be used on the front side and the back side. Further, front mounting point sleeves are respectively arranged at two ends of the front pipe beam and the rear pipe beam, one end of the longitudinal beam is fixedly connected with the front pipe beam in a welding mode, the rear mounting point sleeve is formed at the other end of the longitudinal beam, and a rear suspension bushing is arranged in the rear mounting point sleeve. Further, a reinforcing lining plate is arranged at the joint of the front pipe beam and the longitudinal beam. Further, a lower guard plate fixing support and a rear pull rod support are arranged below one longitudinal beam, and a rear control arm support is arranged below the other longitudinal beam. Further, a plurality of water pipe fixing brackets are arranged on the rear pipe beam. Further, a rear suspension bracket is arranged on the rear pipe beam. Further, a wire harness fixing bracket is arranged on the front tube beam. Further, when the SUV is in a vehicle type, the middle arched straight section of the front tubular beam is upwards, and the suspension mounting bracket arranged on the front tubular beam is downwards used for mounting a motor of the SUV. Further, the front tube beam rotates, the middle arch straight section faces downwards, and the suspension mounting bracket arranged on the front tube beam faces upwards and is used for mounting a motor of the car. Further, an automobile comprises a rear auxiliary frame for universalization of SUVs and sedans. Compared with the prior art, the invention has the following technical effects: The rear auxiliary frame disclosed by the invention has the advantages that if the rear auxiliary frame is of an SUV (SUV) model, the middle arched straight section of the front pipe beam is upward, the suspension mounting bracket arranged on the front pipe beam is downward, so that the motor space position of the SUV model is ensured, and if the rear auxiliary frame is of a Sedan model, the front pipe beam rotates 180 degrees, the middle arched straight section is downward, the suspension mounting bracket arranged on the middle arched straight section is upward, so that the motor space position of the Sedan model is ensured. The auxiliary frame after the structure can give consideration to the change of the motor space position height of SUV model and Sedan model, and simultaneously, the auxiliary frame assembly after the structure can be used for all parts of different parts, but the auxiliary parts can be used commonly, and other auxiliary parts are not needed to be added, so that the development cost of a mould is saved. Finally, when the assembly gauge detects, the gauge blocks with different heights can be arranged on the gauge, and the position degree of the front suspension mounting bracket is detected, so that the gauge can be universal, and the cost is further saved. Drawings FIG. 1 is an exterior view of a novel subframe; FIG. 2 is a front view of a novel subframe; FIG. 3 is a top view of a novel subframe; FIG. 4 is a left side view of a novel subframe; FIG. 5 is an external view (rotat