A rear knuckle structure of a five-link suspension, a suspension assembly and a vehicle

Abstract

The application relates to the technical field of automobile parts, and discloses a rear knuckle structure of a five-connecting-rod suspension, which comprises a rear knuckle body, a first connecting part, a second connecting part, a bearing mounting part, a first reinforcing rib and a second reinforcing rib, the bearing mounting part is arranged at the middle part of the rear knuckle body, and the first connecting part and the second connecting part are respectively located at the outer edges of the rear knuckle body; the two ends of the first reinforcing rib are connected with the first connecting part and the bearing mounting part respectively, and the two ends of the second reinforcing rib are connected with the second connecting part and the bearing mounting part respectively. The first reinforcing rib and the third reinforcing rib are arranged on the two side end faces of the rear knuckle body, the first connecting part has good rigidity performance, the thickness of the rear knuckle body at the first connecting part can be reduced, and the weight of the rear knuckle body is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and more particularly to a rear steering knuckle structure for a five-link suspension. Background Technology

[0002] The rear steering knuckle is a key component of the rear suspension, connecting the wheel, control arm, brake caliper, and other parts. Current rear steering knuckle structures, by simply adding materials to meet stiffness requirements, not only increase cost and weight but may also introduce manufacturing defects. Therefore, ensuring that the rear steering knuckle possesses sufficient stiffness while also meeting lightweight requirements is a pressing technical problem that needs to be solved in this field. Utility Model Content

[0003] This application provides a rear steering knuckle structure for a five-link suspension, which reduces the weight of the rear steering knuckle while ensuring its structural stiffness performance.

[0004] To achieve the above objectives, the main technical solutions adopted in this application include:

[0005] In a first aspect, this application provides a rear steering knuckle structure for a five-link suspension, including a rear steering knuckle body, a first connecting part, a second connecting part, a bearing mounting part, a first reinforcing rib, and a second reinforcing rib. The bearing mounting part is disposed in the middle of the rear steering knuckle body, and the first connecting part and the second connecting part are respectively located on the outer edge of the rear steering knuckle body. The two ends of the first reinforcing rib are respectively connected to the first connecting part and the bearing mounting part, and the two ends of the second reinforcing rib are respectively connected to the second connecting part and the bearing mounting part.

[0006] Furthermore, along the axial direction of the bearing mounting portion, the rear steering knuckle body has a first side and a second side that are arranged opposite to each other, and both the first reinforcing rib and the second reinforcing rib are arranged on the first side.

[0007] Furthermore, the rear steering knuckle structure also includes a third reinforcing rib and a fourth reinforcing rib, both of which are located on the second side and spaced apart.

[0008] Furthermore, one end of the third reinforcing rib is connected to the first connecting part, and one end of the fourth reinforcing rib is connected to the second connecting part.

[0009] Furthermore, along the axial direction of the bearing mounting portion, the projections of the second reinforcing rib and the fourth reinforcing rib are staggered.

[0010] Furthermore, the first side is provided with an oil hole protrusion, and along the axial direction of the bearing mounting part, the projection of the oil hole protrusion at least partially overlaps with the projection of the fourth reinforcing rib.

[0011] Furthermore, a protrusion is formed on the side wall of the fourth reinforcing rib, and the projection of the protrusion at least partially overlaps with the projection of the oil hole protrusion along the axial direction of the bearing mounting part.

[0012] Furthermore, a connecting groove is provided on the second side, and the projection of the connecting groove at least partially overlaps with the projection of the bearing mounting part along the axial direction of the bearing mounting part. The third and fourth reinforcing ribs are provided in the connecting groove.

[0013] Furthermore, the rear steering knuckle structure also includes a third connecting part and a fifth reinforcing rib. The third connecting part is located on the outer edge of the rear steering knuckle body, and the two ends of the fifth reinforcing rib are connected to the third connecting part and the bearing mounting part, respectively.

[0014] Furthermore, the rear steering knuckle structure also includes a fourth connecting part and a fifth connecting part, which are located on the outer edge of the rear steering knuckle body, respectively; the rear steering knuckle structure also includes a weight reduction groove, which is located between the fourth connecting part and the fifth connecting part.

[0015] Secondly, this application provides a suspension assembly including the aforementioned rear steering knuckle structure.

[0016] Thirdly, this application provides a vehicle including the aforementioned suspension assembly.

[0017] By setting the first and third reinforcing ribs on both ends of the rear steering knuckle body, the first connection part has good rigidity performance, while the thickness of the rear steering knuckle body at the first connection part can be reduced, thus reducing the weight of the rear steering knuckle body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the rear steering knuckle structure provided in this application.

[0020] Figure 2 for Figure 1 The diagram shows the rear steering knuckle structure after it has rotated through a certain angle.

[0021] Explanation of reference numerals in the attached drawings: Rear steering knuckle body 1, first connecting part 101, second connecting part 102, bearing mounting part 103, screw hole platform 1031, bearing mounting platform 1032, first reinforcing rib 104, second reinforcing rib 105, third reinforcing rib 106, fourth reinforcing rib 107, weight reduction groove 108, connecting groove 109, oil hole protrusion 110, oil hole 1101, protrusion 111, third connecting part 112, first ear plate 1121, second ear plate 1122, fifth reinforcing rib 113, fourth connecting part 114, fifth connecting part 115, first mounting protrusion 116, second mounting protrusion 117, first side 118, second side 119. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] like Figure 1 and Figure 2 As shown, as one implementation, this application provides a rear steering knuckle structure for a five-link suspension, including a rear steering knuckle body 1. The rear steering knuckle body 1 includes a first connecting part 101, a second connecting part 102, and a bearing mounting part 103. The bearing mounting part 103 is located in the middle of the rear steering knuckle body 1, and the first connecting part 101 and the second connecting part 102 are respectively located on the outer edge of the rear steering knuckle body 1.

[0024] It should be noted that the bearing mounting part 103 is used to install the wheel hub bearing, and the first connecting part 101 and the second connecting part 102 are respectively used to install two of the connecting rods of the five-link suspension.

[0025] To more clearly describe the technical solution of this application, the following are defined: Figure 1 The front-to-back direction is shown. The axial direction of the bearing mounting portion 103 is... Figure 1 The front and back directions in the middle.

[0026] The rear steering knuckle body 1 also includes a first reinforcing rib 104 and a second reinforcing rib 105. A third reinforcing rib 106 and a fourth reinforcing rib 107 are located along the axial direction of the bearing mounting portion 103. The first reinforcing rib 104 and the second reinforcing rib 105 are located on one side of the rear steering knuckle body 1, and the third reinforcing rib 106 and the fourth reinforcing rib 107 are located on the other side of the rear steering knuckle body 1.

[0027] The first reinforcing rib 104 is connected at both ends to the first connecting part 101 and the bearing mounting part 103 respectively, and is used to tie the first connecting part 101 and the bearing mounting part 103 together, thereby improving the strength of the first connecting part 101 on one end face of the rear steering knuckle body 1.

[0028] The two ends of the second reinforcing rib 105 are respectively connected to the second connecting part 102 and the bearing mounting part 103, which are used to tie the second connecting part 102 and the bearing mounting part 103 together, thereby improving the rigidity performance of the second connecting part 102 on one side end face of the rear steering knuckle body 1.

[0029] As one implementation, along the axial direction of the bearing mounting portion 103, the rear steering knuckle body 1 has a first side 118 and a second side 119 arranged opposite to each other, and the first reinforcing rib 104 and the second reinforcing rib 105 are both provided on the first side 118.

[0030] As one implementation, along the axial direction of the bearing mounting portion 103, the bearing mounting portion 103 protrudes towards the first side 118. The bearing mounting portion 103 includes a bearing mounting platform 1032 and a plurality of screw hole platforms 1031. A stepped hole is formed in the bearing mounting platform 1032. The plurality of screw hole platforms 1031 are distributed on the outer edge of the bearing mounting platform 1032. The wheel hub bearing is installed on the rear steering knuckle structure through the plurality of screw hole platforms 1031 and the bearing mounting platform 1032.

[0031] The ends of the first reinforcing rib 104 and the second reinforcing rib 105 facing the bearing mounting part 103 are respectively connected to different screw hole platforms 1031. The rear steering knuckle body 1 at the location of the screw hole platform 1031 has a larger wall thickness in order to increase the strength of the first reinforcing rib 104 and the second reinforcing rib 105, thereby improving the strength of the first connecting part 101 and the second connecting part 102.

[0032] As one implementation, the rear steering knuckle body 1 includes a first mounting protrusion 116 and a second mounting protrusion 117. The first mounting protrusion 116 and the second mounting protrusion 117 are respectively arranged on the end face of the rear steering knuckle body 1 with a first reinforcing rib 104, and the first mounting protrusion 116 and the second mounting protrusion 117 are respectively connected to the first reinforcing rib 104, which can further increase the rigidity of the first reinforcing rib 104, thereby further increasing the strength of the first connecting part 101.

[0033] It should be noted that both the first mounting protrusion 116 and the second mounting protrusion 117 have screw holes to facilitate the installation of other components of the five-link suspension through the first mounting protrusion 116 and the second mounting protrusion 117.

[0034] As one implementation, the rear steering knuckle structure also includes a third reinforcing rib 106 and a fourth reinforcing rib 107, both of which are provided on the second side 119 and are spaced apart.

[0035] The third reinforcing rib 106 is connected to the first connecting part 101 to improve the strength of the first connecting part 101 on the other end face of the rear steering knuckle body 1.

[0036] The first reinforcing rib 104 and the third reinforcing rib 106 on both ends of the rear steering knuckle body 1 are used to improve the rigidity of the first connecting part 101, so as to appropriately reduce the thickness of the rear steering knuckle body 1 at the first connecting part 101 and reduce the weight of the rear steering knuckle body 1.

[0037] The fourth reinforcing rib 107 is connected to the second connecting part 102 to improve the rigidity of the second connecting part 102 on the other end face of the rear steering knuckle body 1.

[0038] The rigidity of the second connecting part 102 is improved by the second reinforcing ribs 105 and the fourth reinforcing ribs 107 on both ends of the rear steering knuckle body 1, so as to appropriately reduce the thickness of the rear steering knuckle body 1 at the second connecting part 102 and reduce the weight of the rear steering knuckle body 1.

[0039] As one implementation, along the first direction, the projection of the first reinforcing rib 104 at least partially overlaps with the projection of the third reinforcing rib 106.

[0040] Increase the stiffness of the first connecting part 101 in the extending direction of the first reinforcing rib 104 and the third reinforcing rib 106.

[0041] As one implementation method, along the first direction, the projection of the second reinforcing rib 105 is staggered with the projection of the fourth reinforcing rib 107.

[0042] The stiffness of the second connecting part 102 is increased along the extension direction of the second reinforcing rib 105 and the extension direction of the fourth reinforcing rib 107, so that the second connecting part 102 has good stiffness performance in multiple directions.

[0043] As one implementation, an oil hole protrusion 110 is formed on the first side 118, and the oil hole protrusion 110, the first reinforcing rib 104 and the second reinforcing rib 105 are located on the same side of the rear steering knuckle body 1.

[0044] The oil hole protrusion 110 is located on one side of the bearing mounting platform 1032. An oil hole 1101 is formed in the oil hole protrusion 110. The oil hole 1101 communicates with the stepped hole in the bearing mounting platform 1032 and is used to replenish the lubricating oil in the stepped hole in the bearing mounting platform 1032.

[0045] As one implementation, along the axial direction of the bearing mounting portion 103, the projection of the oil hole protrusion 110 at least partially overlaps with the projection of the fourth reinforcing rib 107.

[0046] The thickness of the oil hole protrusion 110 is increased by the fourth reinforcing rib 107, so as to increase the rigidity of the oil hole protrusion 110 and at the same time reduce the protrusion height of the oil hole protrusion 110 along the axial direction of the bearing mounting part 103, thereby further reducing the overall weight of the rear steering knuckle body 1.

[0047] like Figure 2 As shown, in one implementation, a protrusion 111 is formed on the side wall of the fourth reinforcing rib 107 parallel to its extension direction; along the axial direction of the bearing mounting portion 103, the projection of the protrusion 111 at least partially overlaps with the projection of the oil hole protrusion 110.

[0048] By setting the protrusion 111, the thickness of the overlapping portion of the fourth reinforcing rib 107 and the oil hole protrusion 110 is increased. On the one hand, the thickness of the oil hole protrusion 110 can be increased, so that the oil hole 1101 can be machined in the oil hole protrusion 110. On the other hand, the strength of the fourth reinforcing rib 107 can be increased, thereby further increasing the rigidity at the second connecting portion 102.

[0049] As one implementation, a connecting groove 109 is formed on the second side 119. Along the axial direction of the bearing mounting portion 103, the connecting groove 109 is recessed toward the bearing mounting portion 103, and the projection of the connecting groove 109 at least partially overlaps with the projection of the bearing mounting portion 103, thereby reducing the overall weight of the rear steering knuckle body 1.

[0050] The third reinforcing rib 106 and the fourth reinforcing rib 107 are located in the connecting groove 109. By setting the third reinforcing rib 106 and the fourth reinforcing rib 107 in the connecting groove 109, the strength of the first connecting part 101 and the second connecting part 102 on one side of the connecting groove 109 is increased, ensuring the rigidity performance of the first connecting part 101 and the second connecting part 102, while reducing the weight of the rear steering knuckle body 1.

[0051] As one implementation, the rear steering knuckle body 1 also includes a third connecting part 112 and a fifth reinforcing rib 113. The third connecting part 112 is located on the outer edge of the rear steering knuckle body 1 so that the connecting rod of the five-link suspension can be connected to the third connecting part 112. The two ends of the fifth reinforcing rib 113 are connected to the third connecting part 112 and the bearing mounting part 103 respectively. The third connecting part 112 and the bearing mounting part 103 are connected by the fifth reinforcing rib 113, thereby increasing the strength of the third connecting part 112.

[0052] The fifth reinforcing rib 113 is located inside the first side 118.

[0053] In one implementation, the third connecting part 112 includes a first ear plate 1121 and a second ear plate 1122; the rear steering knuckle body 1 includes two fifth reinforcing ribs 113, which are respectively connected to the first ear plate 1121 and the second ear plate 1122.

[0054] The strength of the first ear plate 1121 and the second ear plate 1122 are increased by two fifth reinforcing ribs 113, thereby increasing the overall strength of the rear steering structure.

[0055] It should be noted that the first ear plate 1121 is at least partially parallel to the second ear plate 1122, so as to facilitate the installation of the linkage of the five-link suspension between the first ear plate 1121 and the second ear plate 1122.

[0056] As one implementation, the ends of the two fifth reinforcing ribs 113 near the bearing mounting portion 103 are respectively connected to two different screw hole platforms 1031.

[0057] like Figure 2 As shown, in one implementation, the rear steering knuckle body 1 also includes a fourth connecting part 114 and a fifth connecting part 115. The fourth connecting part 114 and the fifth connecting part 115 are respectively located on the outer edge of the rear steering knuckle body 1 so that the fourth connecting part 114 and the fifth connecting part 115 can be used to install different link members of the five-link suspension.

[0058] The rear steering knuckle structure also includes a weight reduction groove 108, which is located between the fourth connecting part 114 and the fifth connecting part 115. The weight reduction groove 108 further reduces the overall weight of the steering knuckle body 1.

[0059] It should be noted that the first connecting part 101, the second connecting part 102, the third connecting part 112, the fourth connecting part 114 and the fifth connecting part 115 extend in the direction away from the bearing mounting part 103, and are used to install different connecting rods of the five-link suspension.

[0060] In a second aspect, this application also provides a suspension assembly including the aforementioned rear steering knuckle structure.

[0061] Thirdly, this application also provides a vehicle including the aforementioned suspension assembly.

[0062] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0063] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A rear steering knuckle structure for a five-link suspension, characterized in that, include: Rear steering knuckle body (1); The rear steering knuckle body (1) has a first connecting part (101), a second connecting part (102), and a bearing mounting part (103). The bearing mounting part (103) is located in the middle of the rear steering knuckle body (1), and the first connecting part (101) and the second connecting part (102) are located on the outer edge of the rear steering knuckle body (1), respectively. The first reinforcing rib (104) and the second reinforcing rib (105) are respectively connected at both ends of the first reinforcing rib (104) to the first connecting part (101) and the bearing mounting part (103), and at both ends of the second reinforcing rib (105) to the second connecting part (102) and the bearing mounting part (103).

2. The rear steering knuckle structure of a five-link suspension according to claim 1, characterized in that, Along the axial direction of the bearing mounting portion (103), the rear steering knuckle body (1) has a first side (118) and a second side (119) disposed opposite to each other, and the first reinforcing rib (104) and the second reinforcing rib (105) are both disposed on the first side (118).

3. The rear steering knuckle structure of a five-link suspension according to claim 2, characterized in that, The rear steering knuckle structure also includes a third reinforcing rib (106) and a fourth reinforcing rib (107), both of which are disposed on the second side surface (119) and spaced apart.

4. The rear steering knuckle structure of a five-link suspension according to claim 3, characterized in that, One end of the third reinforcing rib (106) is connected to the first connecting part (101), and one end of the fourth reinforcing rib (107) is connected to the second connecting part (102).

5. The rear steering knuckle structure of a five-link suspension according to claim 4, characterized in that, Along the axial direction of the bearing mounting portion (103), the projection of the second reinforcing rib (105) is misaligned with the projection of the fourth reinforcing rib (107).

6. The rear steering knuckle structure of a five-link suspension according to claim 4, characterized in that, The first side surface (118) is provided with an oil hole protrusion (110), and along the axial direction of the bearing mounting part (103), the projection of the oil hole protrusion (110) at least partially overlaps with the projection of the fourth reinforcing rib (107).

7. The rear steering knuckle structure of a five-link suspension according to claim 6, characterized in that, A protrusion (111) is formed on the side wall of the fourth reinforcing rib (107), and the projection of the protrusion (111) at least partially overlaps with the projection of the oil hole protrusion (110) along the axial direction of the bearing mounting part (103).

8. A rear steering knuckle structure for a five-link suspension according to any one of claims 3-7, characterized in that, The second side (119) is provided with a connecting groove (109). Along the axial direction of the bearing mounting part (103), the projection of the connecting groove (109) at least partially overlaps with the projection of the bearing mounting part (103). The third reinforcing rib (106) and the fourth reinforcing rib (107) are provided in the connecting groove (109).

9. The rear steering knuckle structure of a five-link suspension according to claim 1, characterized in that, The rear steering knuckle structure also includes a third connecting part (112) and a fifth reinforcing rib (113). The third connecting part (112) is disposed on the outer edge of the rear steering knuckle body (1), and the two ends of the fifth reinforcing rib (113) are respectively connected to the third connecting part (112) and the bearing mounting part (103).

10. The rear steering knuckle structure of a five-link suspension according to claim 9, characterized in that, The rear steering knuckle structure also includes a fourth connecting part (114) and a fifth connecting part (115), the fourth connecting part (114) and the fifth connecting part (115) being located on the outer edge of the rear steering knuckle body (1); The rear steering knuckle structure also includes a weight reduction groove (108), which is located between the fourth connecting part (114) and the fifth connecting part (115).

11. A suspension assembly, characterized in that, The rear steering knuckle structure includes any one of claims 1-10.

12. A vehicle, characterized in that, Includes the suspension assembly as described in claim 11.

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