Integrated V-shaped thrust rod assembly of rear balanced suspension of heavy commercial vehicle

Abstract

The utility model discloses an integrated V-shaped thrust rod assembly of a rear balanced suspension of a heavy-duty commercial vehicle, which relates to the technical field of key parts of the rear balanced suspension of the heavy-duty commercial vehicle, and is technically characterized by comprising a V-shaped thrust rod body which is integrally cast and formed; the large rubber spherical pin assembly is mounted at the upper end of the integrally cast and formed V-shaped thrust rod body, and the large rubber spherical pin assembly is fixedly connected with the integrally cast and formed V-shaped thrust rod body through a large clamping spring; the V-shaped thrust rod has the technical effects that through the first reinforcing rib, the second reinforcing rib, the third reinforcing rib and the fourth reinforcing rib which are fixedly connected in the transverse direction and the longitudinal direction, the transmission path of longitudinal force and transverse force is effectively optimized, stress concentration is avoided, the strength and fatigue requirements are met, procedures are combined, integral casting forming is achieved, and the service life of the V-shaped thrust rod is prolonged. Therefore, the preparation period is effectively shortened, and the preparation cost and the overall weight are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of key components of rear balance suspension for heavy commercial vehicles, specifically an integrated V-shaped thrust rod assembly for rear balance suspension of heavy commercial vehicles. Background Technology

[0002] A thrust rod is a guide rod assembly used in the suspension of heavy-duty commercial vehicles to connect the chassis and the axle. Its purpose is to overcome the shortcomings of non-independent suspension systems such as leaf springs (only in balanced suspensions), rubber springs, or air springs, which can only transmit vertical forces and cannot transmit traction and lateral forces (non-leaf spring structures). When encountering curves or bumpy roads, it plays a role in preventing mutual movement between the axle and the chassis, stabilizing the axle, and providing a certain degree of cushioning to reduce vehicle vibration and noise, and avoid impact damage to key components such as the axle and chassis crossbeams.

[0003] A thrust rod typically consists of a shaft and ball joints. Type I thrust rods consist of two ball joints and a shaft, while V-type thrust rods consist of three ball joints and a V-shaped shaft. A V-type thrust rod has two ball joints in the same plane and one ball joint perpendicular to that plane, forming a composite rod system. The ball joints on one V-shaped head are welded to the ball joints of the other two heads via the shaft. The three ball joints of different heads have strict dimensional relationships with each other and jointly transmit traction and braking forces and their torques, as well as lateral forces and their torques.

[0004] Currently, the production process of V-type thrust rods is relatively long. The V-shaped rod head and the straight rod head need to be forged separately and then machined. After that, they need to be friction-welded to the rod body four times to form the required rod body. This process is inefficient. The production process involves multiple transfers, packaging, storage, and transportation. For products with large demand, this will greatly limit production efficiency and affect the delivery cycle. Moreover, the V-type thrust rod body is relatively heavy, and multiple positioning welding makes it difficult to ensure product consistency, which affects the performance.

[0005] Therefore, we propose a novel integrated V-type thrust rod assembly for the rear balance suspension of heavy-duty commercial vehicles to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an integrated V-shaped thrust rod assembly for the rear balance suspension of heavy-duty commercial vehicles, which solves the problems of heavy weight, complex manufacturing process, long cycle, and high manufacturing cost of existing V-shaped thrust rod assemblies.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an integrated V-shaped thrust rod assembly for the rear balance suspension of a heavy-duty commercial vehicle, comprising:

[0010] The V-shaped thrust rod body is integrally cast.

[0011] A large rubber spherical pin assembly is installed on the upper end of a one-piece cast V-shaped thrust rod body. The large rubber spherical pin assembly and the one-piece cast V-shaped thrust rod body are fixedly connected by a large snap ring.

[0012] The small rubber spherical pin assembly is installed on both sides of the lower end of the integrally cast V-shaped thrust rod body. The small rubber spherical pin assembly and the integrally cast V-shaped thrust rod body are fixedly connected by small snap rings.

[0013] Preferably, the integrally cast V-shaped thrust rod body is made of QT900-8 material.

[0014] Preferably, the integrally cast V-shaped push rod body includes an integrally cast V-shaped push rod body, one end of which is a V-shaped rod head, and the other end of which is two straight rod heads.

[0015] Preferably, the V-shaped rod head has a V-shaped rod head ball pin mounting hole inside, and the inner side of the V-shaped rod head ball pin mounting hole is provided with a V-shaped rod head ball pin mounting hole retaining groove and a V-shaped rod head ball pin mounting hole stop on the integrally cast V-shaped push rod body.

[0016] Preferably, the connection area of ​​the integrally cast V-shaped pusher shaft, V-shaped pusher head, and straight pusher head is sequentially fixed with a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, and a fourth reinforcing rib from top to bottom.

[0017] Preferably, the first reinforcing rib is located on both sides of the V-shaped rod head, forming a ring shape.

[0018] Preferably, the second reinforcing rib is located at the connection between the V-shaped club head and the straight club head.

[0019] Preferably, the third and fourth reinforcing ribs are located on the periphery of the integrally cast V-shaped push rod body, and the cross-section forms an H-shaped cross-section of the rod body.

[0020] Preferably, the inside of the straight club head is provided with a straight club head ball pin mounting hole, and the inner side of the straight club head is provided with a straight club head ball pin mounting hole retaining groove and a straight club head ball pin mounting hole stop.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides an integrated V-shaped thrust rod assembly for the rear balance suspension of heavy-duty commercial vehicles, which has the following advantages:

[0023] 1. The V-shaped thrust rod body of this utility model is integrally cast and formed by first, second, third and fourth reinforcing ribs that are fixedly connected in the horizontal and vertical directions, thereby effectively optimizing the transmission path of longitudinal and lateral forces, avoiding stress concentration, and meeting the strength and fatigue requirements.

[0024] 2. The V-shaped rod head and the straight rod head of this utility model can be combined into one process through drilling equipment and spring clip groove processing equipment, thus the spring clip groove processing equipment can be combined into one process.

[0025] 3. This utility model uses a V-shaped thrust rod body integrally cast, which can effectively reduce weight while meeting the overall strength requirements, effectively reducing the manufacturing process and manufacturing costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the integrated V-shaped thrust rod assembly of this utility model;

[0027] Figure 2 This is a schematic diagram of the specific structure of the one-piece cast V-shaped push rod body of this utility model.

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the integrally cast V-shaped push rod body of this utility model;

[0029] Figure 4 for Figure 3 A schematic diagram of the AA section structure of the integrally cast V-shaped push rod body of this utility model.

[0030] In the picture:

[0031] 1. One-piece cast V-shaped putter shaft; 11. V-shaped head; 12. Straight head; 13. First reinforcing rib; 14. Second reinforcing rib; 15. Third reinforcing rib; 16. Fourth reinforcing rib; 17. V-shaped head ball pin mounting hole; 171. V-shaped head ball pin mounting hole retaining ring groove; 172. V-shaped head ball pin mounting hole stop; 18. Straight head ball pin mounting hole; 181. Straight head ball pin mounting hole retaining ring groove; 182. Straight head ball pin mounting hole stop; 19. H-shaped section of shaft; 2. Large rubber ball pin assembly; 3. Small rubber ball pin assembly; 4. Large retaining ring; 5. Small retaining ring. Detailed Implementation

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Example 1

[0034] This embodiment provides a technical solution: an integrated V-shaped thrust rod assembly for the rear balance suspension of a heavy-duty commercial vehicle, such as... Figures 1-4 As shown, it includes a V-shaped thrust rod body integrally cast, a large rubber ball pin assembly 2, and a small rubber ball pin assembly 3.

[0035] The large rubber spherical pin assembly 2 is installed on the upper end of the integrally cast V-shaped thrust rod body. The large rubber spherical pin assembly 2 is installed at the upper end of the integrally cast V-shaped thrust rod body via the installation area thereon. The large rubber spherical pin assembly 2 and the integrally cast V-shaped thrust rod body are fixedly connected by a large retaining spring 4. The large rubber spherical pin assembly 2 and the integrally cast V-shaped thrust rod body are positioned and assembled by the large retaining spring 4, effectively preventing loosening and detachment. The small rubber spherical pin assembly is installed on both sides of the lower end of the integrally cast V-shaped thrust rod body. The small rubber spherical pin assembly 3 is installed on both sides of the lower end of the integrally cast V-shaped thrust rod body via the installation areas thereon. The small rubber spherical pin assembly 3 and the integrally cast V-shaped thrust rod body are fixedly connected by a small retaining spring 5. The small rubber spherical pin assembly 3 and the integrally cast V-shaped thrust rod body are positioned and assembled by the small retaining spring 5, effectively preventing loosening and detachment.

[0036] The V-shaped thrust rod body, which is integrally cast, is made of QT900-8 material. The integral casting of QT900-8 material can effectively reduce weight, meet the overall strength requirements, and reduce the number of manufacturing processes, thereby reducing manufacturing costs.

[0037] The connection area of ​​the integrally cast V-shaped putter shaft 1, V-shaped head 11, and straight head 12 is sequentially fixed with a first reinforcing rib 13, a second reinforcing rib 14, a third reinforcing rib 15, and a fourth reinforcing rib 16 from top to bottom. The first reinforcing rib 13, the second reinforcing rib 14, the third reinforcing rib 15, and the fourth reinforcing rib 16 effectively optimize the transmission path of longitudinal and lateral forces of the integrally cast V-shaped putter shaft 1, V-shaped head 11, and straight head 12, avoid stress concentration, and meet strength and fatigue requirements.

[0038] The third reinforcing rib 15 and the fourth reinforcing rib 16 are located on the sides of the integrally cast V-shaped push rod body 1, forming an H-shaped section 19 of the rod body, which effectively strengthens the connection.

[0039] like Figure 1 and Figure 2 As shown, the integrally cast V-shaped push rod body includes an integrally cast V-shaped push rod body 1, which can be connected to each other. One end of the integrally cast V-shaped push rod body 1 is a V-shaped rod head 11, which can be connected to an external component. The other end of the integrally cast V-shaped push rod body 1 consists of two straight rod heads 12, which can be connected to an external component.

[0040] The first reinforcing rib 13 is located on both sides of the V-shaped rod head 11, forming a ring shape, which effectively strengthens the fixation.

[0041] The V-shaped clubhead 11 has a V-shaped clubhead ball pin mounting hole 17 inside. The large rubber ball pin assembly 2 can be installed through the area of ​​the V-shaped clubhead ball pin mounting hole 17. The inner side of the V-shaped clubhead ball pin mounting hole 17 is located on the integrally cast V-shaped pusher body 1, which has a V-shaped clubhead ball pin mounting hole retaining groove 171 and a V-shaped clubhead ball pin mounting hole stop 172. The large rubber ball pin assembly 2 passes through the area of ​​the V-shaped clubhead ball pin mounting hole retaining groove 171 and the V-shaped clubhead ball pin mounting hole stop 172, so that the large retaining spring 4 can be effectively prevented from falling off during installation.

[0042] The second reinforcing rib 14 is located at the connection between the V-shaped clubhead 11 and the straight clubhead 12, thereby effectively strengthening the connection.

[0043] like Figures 1-4 As shown, the inside of the straight club head 12 is provided with a straight club head ball pin mounting hole 18. Through the safety area of ​​the straight club head ball pin mounting hole 18, the small rubber ball pin assembly 3 can be correspondingly installed on the straight club head 12. The inner side of the straight club head ball pin mounting hole 18 is provided with a straight club head ball pin mounting hole retaining groove 181 and a straight club head ball pin mounting hole stop 182. The small rubber ball pin assembly 3, through the straight club head ball pin mounting hole retaining groove 181 and the straight club head ball pin mounting hole stop 182 on the inner side of the straight club head ball pin mounting hole 18, effectively prevents the small retaining spring 5 from falling off during installation.

[0044] In use, the integrally cast V-shaped thrust rod body, through the V-shaped rod head 11 and straight rod head 12 on the integrally cast V-shaped thrust rod body 1, can respectively fix the large rubber ball pin assembly 2 and the small rubber ball pin assembly 3. The small rubber ball pin assembly 3 can be correspondingly installed on the straight rod head 12 through the small retaining spring 5. The straight rod head 12 passes through the area of ​​the straight rod head ball pin mounting hole 18, allowing the small rubber ball pin assembly 3 to be correspondingly installed through the small retaining spring 5. Through the straight rod head ball pin mounting hole retaining spring groove 181 and straight rod head ball pin mounting hole stop 182 inside the straight rod head ball pin mounting hole 18, this effectively prevents the small rubber ball pin assembly 3 from loosening. The large rubber ball pin assembly 2 can be fixed by the large retaining spring 4. The V-shaped clubhead 11 is installed on the V-shaped clubhead 11. The V-shaped clubhead 11 passes through the area of ​​the V-shaped clubhead ball pin mounting hole 17, allowing the large rubber ball pin assembly 2 to be installed correspondingly via the large retaining spring 4. The retaining spring groove 171 and the stop 172 of the V-shaped clubhead ball pin mounting hole 17 inside the V-shaped clubhead ball pin mounting hole effectively prevent the large rubber ball pin assembly 2 from loosening. The integrally cast V-shaped putter body 1, V-shaped clubhead 11 and straight clubhead 12 are connected by the first reinforcing rib 13, the second reinforcing rib 14, the third reinforcing rib 15 and the fourth reinforcing rib 16, which effectively optimize the transmission path of longitudinal and lateral forces, avoid stress concentration, and meet the strength and fatigue requirements.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A heavy-duty commercial vehicle rear trailing arm integrated V-push rod assembly, characterized in that, The utility model relates to a one-piece cast V-shaped thrust rod body, a large rubber spherical pin assembly (2) mounted on the upper end of the one-piece cast V-shaped thrust rod body, the large rubber spherical pin assembly (2) and the one-piece cast V-shaped thrust rod body being fixedly connected through a large spring (4), and a small rubber spherical pin assembly (3) mounted on both sides of the lower end of the one-piece cast V-shaped thrust rod body, the small rubber spherical pin assembly (3) and the one-piece cast V-shaped thrust rod body being fixedly connected through a small spring (5). The one-piece cast V-shaped thrust rod body is made of QT900-8 material. The one-piece cast V-shaped thrust rod body comprises a one-piece cast V-shaped thrust rod body (1), one end of the one-piece cast V-shaped thrust rod body (1) being a V-shaped rod head (11), and the other end of the one-piece cast V-shaped thrust rod body (1) being two straight rod heads (12). The V-shaped rod head (11) is internally provided with a V-shaped rod head ball pin mounting hole (17), the inner side of the V-shaped rod head ball pin mounting hole (17) being provided on the one-piece cast V-shaped thrust rod body (1) with a V-shaped rod head ball pin mounting hole spring groove (171) and a V-shaped rod head ball pin mounting hole stop (172).

2. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle according to claim 1, characterized in that: The connection area of the one-piece cast V-shaped thrust rod body (1), the V-shaped rod head (11), and the straight rod head (12) is sequentially fixedly connected from top to bottom with a first reinforcing rib (13), a second reinforcing rib (14), a third reinforcing rib (15), and a fourth reinforcing rib (16).

3. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle according to claim 2, characterized in that: The first reinforcing rib (13) is located on both sides of the V-shaped rod head (11) and forms a ring shape.

4. The integrated V-push rod assembly of the rear equalizing suspension of a heavy commercial vehicle according to claim 3, characterized in that: The second reinforcing rib (14) is located at the connection between the V-shaped rod head (11) and the straight rod head (12).

5. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle according to claim 3, characterized in that: The third reinforcing rib (15) and the fourth reinforcing rib (16) are located on the side of the one-piece cast V-shaped thrust rod body (1) and form a rod body H-shaped cross section (19) in cross section.

6. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle according to claim 5, characterized in that: The straight rod head (12) is internally provided with a straight rod head ball pin mounting hole (18), the inner side of the straight rod head ball pin mounting hole (18) being provided on the straight rod head (12) with a straight rod head ball pin mounting hole spring groove (181) and a straight rod head ball pin mounting hole stop (182).

7. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle according to claim 5, characterized in that: ​ 8. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle of claim 5, characterized in that: ​ 9. The integrated V-push rod assembly for a rear trailing arm suspension of a heavy-duty commercial vehicle of claim 5, characterized in that: ​

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