CN218751000U

CN218751000U - Longeron, sub vehicle frame, five connecting rod suspensions and vehicle of sub vehicle frame

Info

Publication number: CN218751000U
Application number: CN202222795083.0U
Authority: CN
Inventors: 于慧
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-28
Anticipated expiration: 2032-10-21

Abstract

The application provides longeron, sub vehicle frame, five connecting rod suspensions and the vehicle of sub vehicle frame, wherein, the longeron of sub vehicle frame includes: the bearing arm comprises a first supporting beam, a second supporting beam and a connecting beam, wherein the first supporting beam and the second supporting beam are transversely arranged, the connecting beam is longitudinally arranged and is connected with the first supporting beam and the second supporting beam, and the connecting beam is used for connecting the bearing arm. The application provides a longeron of sub vehicle frame, including the first supporting beam and the second supporting beam of horizontal setting and the tie-beam of vertical setting, the tie-beam of vertical setting has good longitudinal stability, and the tie-beam all is connected with first supporting beam and second supporting beam simultaneously, transversely sets up first supporting beam with the second supporting beam provides stable support for the tie-beam has lateral stability, finally makes the tie-beam horizontal vertical homogeneous stability. When the connecting beam is used for connecting the bearing arm, the stable connecting beam can provide powerful support for the bearing arm and can ensure the longitudinal rigidity of the bearing arm.

Description

Longeron, sub vehicle frame, five connecting rod suspensions and vehicle of sub vehicle frame

Technical Field

The application relates to the technical field of independent suspensions behind automobiles, in particular to a longitudinal beam of an auxiliary frame, the auxiliary frame, a five-connecting-rod suspension and a vehicle.

Background

At present, the rear independent suspension of the automobile mainly has three types: the first type is a four-link independent suspension, which is adapted to a shaft front motor; the second type is an H-arm independent suspension which is matched with a rear shaft motor; the third type is a five-link independent suspension: substantially adapting the front shaft motor. Compared with a four-link independent suspension, the five-link independent suspension has better vibration reduction effect and comfort, and compared with an H-arm independent suspension, the five-link independent suspension has lower cost, so the five-link independent suspension has the comprehensive advantages of good use effect and lower cost.

The existing five-connecting-rod independent suspension is basically matched with a front-axle motor, and the arrangement of the rear-axle motor can optimize the step space of three rows of passengers in a vehicle to the maximum extent, increase the stroke of slide rails of two rows of seats and increase the arrangement space of an oil tank, so that the arrangement of the rear-axle motor on the five-connecting-rod independent suspension is a hotspot of research in the field.

However, there are technical difficulties in arranging the rear axle motor on the five-link independent suspension. The longitudinal rigidity of the five-link independent suspension is ensured because the inner point of the bearing arm of the five-link independent suspension is supported by the rear cross beam of the auxiliary frame. If the rear axle motor is configured, the rear cross beam of the auxiliary frame needs to move backwards due to the arrangement of the rear axle motor, but the position of the bearing arm is kept unchanged, so that the rear cross beam cannot continuously support the bearing arm, and the longitudinal rigidity of the bearing arm is insufficient.

Therefore, how to support the load-bearing arm by the subframe on the premise that the rear cross beam of the subframe moves backwards is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a side member of a subframe, a five-link suspension and a vehicle, so as to solve the problems of the background art.

In view of the above, the present application provides, in a first aspect, a longitudinal beam of a subframe, including: the first supporting beam and the second supporting beam that transversely set up, and the tie-beam of vertical setting, the tie-beam with first supporting beam with the second supporting beam all connects, the tie-beam is used for connecting and bears the arm.

Furthermore, two ends of the first supporting beam correspond to two ends of the second supporting beam one by one and are connected with the two ends of the second supporting beam.

Further, a gap is left between the first support beam and the second support beam.

Furthermore, the first supporting beam is of an arc-shaped structure protruding towards the direction far away from the second supporting beam.

Furthermore, the second supporting beam is an arc-shaped structure protruding towards the direction far away from the first supporting beam.

Furthermore, the support device also comprises a support cross beam, and the support cross beam is connected with one side of the second support beam, which is far away from the first support beam.

Based on same technical concept, this application second aspect provides a sub vehicle frame, including first longeron, first crossbeam, second longeron and the second crossbeam that the head and the tail connected in order, first longeron and/or the second longeron is the arbitrary any of above-mentioned first aspect the longeron of sub vehicle frame, the first supporting beam of the longeron of sub vehicle frame with first crossbeam with the second crossbeam is all connected, the second supporting beam with first crossbeam with the second crossbeam is all connected.

Based on the same technical concept, the third aspect of the present application provides a five-link suspension including the subframe of the second aspect.

The steering mechanism further comprises a toe-in arm, a camber arm, an upper cross arm, a lower cross arm, the bearing arm and a steering knuckle, wherein one end of the toe-in arm, one end of the camber arm, one end of the upper cross arm, one end of the lower cross arm and one end of the bearing arm are all connected with the auxiliary frame, and the other end of the toe-in arm, the other end of the camber arm, the other end of the upper cross arm, the other end of the lower cross arm and the other end of the bearing arm are all connected with the steering knuckle.

Furthermore, the toe arm, the camber arm and the upper cross arm are all connected with the first support beam, the lower cross arm is connected with the second support beam, and the bearing arm is connected with the connecting beam.

Based on the same technical concept, a fourth aspect of the present application provides a vehicle including any one of the following (1) to (3):

(1) A side member of the subframe according to any one of the first to third aspects;

(2) The subframe according to the second aspect;

(3) The five-link suspension according to any one of the above third aspects.

From the above can see, the longeron of sub vehicle frame that this application provided, including the first supporting beam and the second supporting beam of horizontal setting and the tie-beam of vertical setting, the tie-beam of vertical setting has good longitudinal stability, simultaneously the tie-beam with first supporting beam with the second supporting beam all connects, and the first supporting beam and the second supporting beam of horizontal setting provide stable support for the tie-beam has lateral stability, finally makes the tie-beam horizontal vertical homogeneous stability. When the connecting beam is used for connecting the bearing arm, the stable connecting beam can provide powerful support for the bearing arm and can ensure the longitudinal rigidity of the bearing arm.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a longitudinal beam of a subframe according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of the subframe according to the embodiment of the present disclosure when the longitudinal beam is connected to the bearing arm;

FIG. 3 is a schematic view of a subframe according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a five-link suspension according to an embodiment of the present application when an axle rear motor is disposed;

FIG. 5 is an enlarged partial schematic view of FIG. 4 of the specification;

fig. 6 is a top view of a five-link suspension according to an embodiment of the present application, in which a rear axle motor is disposed.

In the figure: 1. an auxiliary frame; 11. a first stringer; 111. a first support beam; 112. a second support beam; 113. a connecting beam; 114. a support beam; 12. a first cross member; 13. a second stringer; 14. a second cross member;

2. a five-link suspension; 21. a frame assembly; 211. a stabilizer bar; 212. a toe-in arm; 213. a shock absorber; 214. a lower cross arm; 215. a camber arm; 216. a carrying arm; 217. an air spring; 218. an upper cross arm; 219. a rear shaft motor; 220. a steering knuckle.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

With reference to fig. 1 and 2, the present application provides a stringer of a subframe 1, comprising: the supporting device comprises a first supporting beam 111 and a second supporting beam 112 which are transversely arranged, and a connecting beam 113 which is longitudinally arranged, wherein the connecting beam 113 is connected with the first supporting beam 111 and the second supporting beam 112, and the connecting beam 113 is used for connecting a bearing arm 216.

Specifically, the first support beam 111 and the second support beam 112, which are laterally arranged, are used to connect with the cross beams of the subframe 1, so as to ensure the stability of the entire subframe 1. Further, the two ends of the first supporting beam 111 are in one-to-one correspondence with the two ends of the second supporting beam 112 and are connected to the two ends of the second supporting beam 112, and the connecting position is used for being connected to the cross beam of the subframe 1, so that the two ends of the first supporting beam 111 and the second supporting beam 112 are both connected to the cross beam of the subframe 1, the stability of the whole subframe 1 is ensured, and the lateral stability of the first supporting beam 111 and the second supporting beam 112 is improved.

The first and second support beams 111 and 112, which are arranged in the lateral direction, are connected to the connection beam 113. Specifically, the first support beam 111 is connected to the top or upper portion of the connection beam 113, the second support beam 112 is connected to the middle portion of the connection beam 113, and the bottom or lower portion of the connection beam 113 is used for connecting the carrier arm 216. The laterally arranged first and second support beams 111, 112 provide a stable support for the connecting beam 113, so that the connecting beam 113 has lateral stability. Meanwhile, the connecting beam 113 is longitudinally arranged, so that the connecting beam 113 has good longitudinal stability, and the connecting beam 113 is finally transversely and longitudinally stable. When the connecting beam 113 is used to connect the carrier arm 216, the stable connecting beam 113 can both provide a strong support for the carrier arm 216 and ensure the longitudinal rigidity of the carrier arm 216. In addition, since the connecting beam 113 has good lateral stability, it also has good lateral stability for supporting the bearing arm 216, so that it is not necessary to provide additional lateral support for the bearing arm 216, which saves space and reserves a larger space for the sub-frame 1 to arrange the rear axle motor 219.

In some embodiments, a gap is left between the first support beam 111 and the second support beam 112.

Specifically, a gap is left between the first support beam 111 and the second support beam 112, when the connecting beam 113 longitudinally arranged is connected with the first support beam 111 and the second support beam 112 simultaneously, the first support beam 111 and the second support beam 112 are respectively connected with different positions of the connecting beam 113, and a certain distance is left between the two connecting positions, so that the first support beam 111 and the second support beam 112 support the connecting beam 113 more stably, the stability of the connecting beam 113 is improved, and the support of the connecting beam 113 to the bearing arm 216 and the longitudinal rigidity of the bearing arm 216 are ensured.

The first support beam 111 is an arc-shaped structure protruding in the direction away from the second support beam 112, and the second support beam 112 is an arc-shaped structure protruding in the direction away from the first support beam 111.

Specifically, the first supporting beam 111 and the second supporting beam 112 are arc structures that deviate from each other, so that a gap between the first supporting beam 111 and the second supporting beam 112 is relatively large, and further, the first supporting beam 111 and the second supporting beam 112 support the connecting beam 113 more stably, and the stability of the connecting beam 113 is further improved.

In addition, the gap between the first support beam 111 and the second support beam 112 is relatively large, and the gap is convenient for subsequent installation in practical use. For example, when the longitudinal beam of the subframe 1 described in the present application is used for the five-link suspension 2, the gap facilitates the connection, arrangement and installation of the respective links, and simplifies the operation process.

In some embodiments, the longitudinal beams of the subframe 1 further include a supporting cross beam 114, and the supporting cross beam 114 is connected to a side of the second supporting beam 112 away from the first supporting beam 111.

Specifically, the supporting beam 114 is transversely disposed to further support the second supporting beam 112, so as to ensure the transverse stability of the second supporting beam 112, and the second supporting beam 112 can better support the connecting beam 113.

Based on the same technical concept, referring to fig. 3, a second aspect of the present application provides a subframe 1, including a first longitudinal beam 11, a first cross beam 12, a second longitudinal beam 13 and a second cross beam 14 sequentially connected end to end, where the first longitudinal beam 11 and/or the second longitudinal beam 13 are the longitudinal beam of the subframe 1 according to any one of the above first aspects, a first supporting beam 111 of the longitudinal beam of the subframe 1 is connected to both the first cross beam 12 and the second cross beam 14, and a second supporting beam 112 is connected to both the first cross beam 12 and the second cross beam 14.

Specifically, the second cross member 14 of the subframe 1 is known as a rear cross member, and the first cross member 12 of the subframe 1 is known as a front cross member. When the axle rear motor 219 is provided, the axle rear motor 219 is connected to the first cross member 12 of the subframe 1 by suspension. The suspension can be selected as a rubber three-point suspension.

The longitudinal beam of the subframe 1 supports the bearing arm 216, so that the longitudinal rigidity of the bearing arm 216 can be ensured, additional transverse support for the bearing arm 216 is not needed, the space is saved, and a larger space is reserved for the arrangement of the rear axle motor 219.

The subframe 1 has the corresponding technical effects of the above embodiments, and will not be described herein again.

Based on the same technical concept, referring to fig. 4, 5 and 6, a third aspect of the present application provides a five-link suspension 2 including the subframe 1 of the second aspect. The five-link suspension 2 has the technical effects of any one of the aspects.

In some embodiments, the five-link suspension 2 further comprises a toe arm 212, a camber arm 215, an upper arm 218, a lower cross arm 214, the carrier arm 216 and a knuckle 220, wherein one end of each of the toe arm 212, the camber arm 215, the upper arm 218, the lower cross arm 214 and the carrier arm 216 is connected with the subframe 1, and the other end of each of the toe arm 212, the camber arm 215, the upper arm 218, the lower cross arm 214 and the carrier arm 216 is connected with the knuckle 220.

Specifically, the toe arm 212, the camber arm 215, and the upper cross arm 218 are connected to the first support beam 111, the lower cross arm 214 is connected to the second support beam 112, and the carrier arm 216 is connected to the connecting beam 113.

The five-link suspension 2 further comprises an air spring 217 and a shock absorber 213, wherein the air spring 217 is mounted on the bearing arm 216, and the shock absorber 213 is mounted on the lower cross arm 214. The shock absorber 213 and the air spring 217 are separately provided, so that the shock absorber 213 can be disposed in front of the wheel center, and a space is reserved for the three-row seat arrangement.

Further, the shock absorber 213 is disposed obliquely with its top portion facing the direction of the first cross member 12 of the subframe 1, so that the installation space required for the shock absorber 213 is reduced, and the region where the three rows of seat backs and seat cushions are relatively thin can be avoided, effectively increasing the width of the three rows of seat cushions.

The toe arm 212, camber arm 215, upper cross arm 218, lower cross arm 214, and carrier arm 216 are collectively referred to as the frame assembly 21 of the five-link suspension 2. Generally, the five-link suspension 2 includes two of the frame assemblies 21 symmetrically disposed, and the two frame assemblies 21 act simultaneously. The five-bar suspension 2 has the corresponding technical effects of the above embodiments, and will not be described herein.

(1) The side member of the subframe 1 according to any one of the first to fourth aspects;

(2) The subframe 1 according to the second aspect;

(3) The five-link suspension 2 according to any one of the third aspect described above.

The vehicle has the corresponding technical effects of the above embodiments, and details are not repeated herein.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. A longitudinal beam of a subframe, comprising: the first supporting beam and the second supporting beam that transversely set up, and the tie-beam of vertical setting, the tie-beam with first supporting beam with the second supporting beam all connects, the tie-beam is used for connecting and bears the arm.

2. The subframe rail of claim 1 wherein said first support beam ends are connected to said second support beam ends in a one-to-one correspondence.

3. The subframe rail of claim 1 wherein said first support beam and said second support beam define a gap therebetween.

4. A subframe rail according to claim 3 wherein said first support beam is of arcuate configuration projecting away from said second support beam.

5. The subframe rail of claim 3 wherein said second support beam is an arcuate structure projecting away from said first support beam.

6. The subframe rail of claim 1 further comprising a support cross member connected to a side of said second support beam remote from said first support beam.

7. The utility model provides a sub vehicle frame, includes first longeron, first crossbeam, second longeron and the second crossbeam that the head and the tail is connected in order, its characterized in that, first longeron with the second longeron is the longeron of sub vehicle frame of any one of claims 1 to 6, the first supporting beam of the longeron of sub vehicle frame with first crossbeam with the second crossbeam all is connected, the second supporting beam with first crossbeam with the second crossbeam all is connected.

8. A five-link suspension comprising the subframe of claim 7.

9. The five-link suspension of claim 8, further comprising: the auxiliary frame comprises a toe-in arm, an outward-inclining arm, an upper cross arm, a lower cross arm, a bearing arm and a steering knuckle, wherein one end of the toe-in arm, one end of the outward-inclining arm, one end of the upper cross arm, one end of the lower cross arm and one end of the bearing arm are connected with the auxiliary frame, and the other end of the toe-in arm, one end of the outward-inclining arm, one end of the upper cross arm, one end of the lower cross arm and the other end of the bearing arm are connected with the steering knuckle.

10. The five-link suspension of claim 9 wherein the toe arm, the camber arm, and the upper cross arm are each connected to the first support beam, the lower cross arm is connected to the second support beam, and the carrier arm is connected to the connecting beam.

11. A vehicle comprising a longitudinal beam of the subframe of any one of claims 1 to 6, or the subframe of claim 7, or the five-link suspension of any one of claims 8 to 10.