Front suspension assembly of commercial vehicle cab

Abstract

The utility model relates to a front suspension assembly of a commercial vehicle cab, which belongs to the technical field of vehicle front suspensions and comprises a stabilizer bar, and adjusting mechanisms are arranged on the left side and the right side of the stabilizer bar and comprise rocker arms arranged on the left side and the right side of the stabilizer bar. According to the front suspension assembly of the commercial vehicle cab, the rocker arms on the two sides of the stabilizer bar are hinged to the front suspension support assembly, manufacturing and assembling are easy, the production and manufacturing cost is reduced, the height valve support is fixed to the outer side of the front suspension support assembly through bolts, and the rocker clamps are in threaded connection with the stabilizer bar through bolts, so that mounting and dismounting are convenient; the hinged portion of the front suspension support assembly and the rocker arm is of a double-bearing structure, firmness is guaranteed through interference fit of outer rings, flexible rotation is guaranteed through clearance fit of inner rings, the stability of a vehicle in the running process is guaranteed, the service life is prolonged, a rubber sleeve in the rocker arm is used for buffering and damping, and the service life of the vehicle is prolonged. Damage of vibration to all parts is reduced, the overall strength is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive front suspension technology, specifically a commercial vehicle cab front suspension assembly. Background Technology

[0002] Commercial vehicles are automobiles designed and technically characterized for transporting people and goods. They include all freight vehicles and buses with more than nine seats, and are divided into five categories: buses, trucks, semi-trailer tractors, incomplete bus vehicles, and incomplete truck vehicles. In the commercial vehicle sector, the cab suspension system is crucial for improving driving comfort and vehicle stability. Currently, more and more commercial vehicles in my country are adopting fully floating cab suspensions, in which the stabilizer bar in the front suspension system plays a key role.

[0003] However, most commercial vehicles currently use solid stabilizer bars for their front suspension. In terms of weight, solid stabilizer bars are relatively heavy due to their material properties. This not only increases the overall weight of the vehicle but also leads to increased energy consumption during vehicle operation, which does not meet the pursuit of lightweight design in modern commercial vehicles. From a cost perspective, solid stabilizer bars are wasteful in terms of raw material usage, resulting in high production costs. Moreover, the processing technology of solid stabilizer bars may be more complex, further increasing manufacturing costs. Therefore, this application proposes an alternative technical solution to address this problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a front suspension assembly for commercial vehicle cabs, which has advantages such as low weight and cost, simple structure and high strength. It solves the problem that most commercial vehicle front suspension stabilizer bars currently use a solid structure. From a weight perspective, solid stabilizer bars are heavy due to their material properties, which not only increases the overall weight of the vehicle, but also leads to increased energy consumption during vehicle operation, which does not meet the pursuit of lightweight design in modern commercial vehicles. From a cost perspective, solid stabilizer bars are wasteful in terms of raw material usage, resulting in high production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a front suspension assembly for a commercial vehicle cab, including a stabilizer bar, wherein adjustment mechanisms are provided on the left and right sides of the stabilizer bar;

[0006] The adjustment mechanism includes rocker arms arranged on the left and right sides of the stabilizer bar. A front suspension bracket assembly is arranged on the side of the two rocker arms away from the stabilizer bar. A height valve bracket is fixedly installed on one side of the front suspension bracket assembly. A height valve body is fixedly arranged on the front of the height valve bracket. A height valve adjusting rod connected to the bottom of the rocker arm is arranged on the output shaft of the height valve body. A rubber sleeve is arranged inside the rocker arm. Two rocker arm clips are arranged on the outside of the stabilizer bar.

[0007] Furthermore, the stabilizer bar is hollow inside, and the rocker arm is located at the upper end of the front suspension bracket assembly, and the rocker arm is hinged to the front suspension bracket assembly.

[0008] Furthermore, a central hole is provided inside the central region of the rocker arm, and the rubber sleeve is located inside the central hole of the rocker arm.

[0009] Furthermore, the two rocker arm clips are located on both sides of the outside of the stabilizer bar, close to the rocker arm, and the two rocker arm clips are symmetrically distributed on the stabilizer bar.

[0010] Furthermore, the height valve bracket is fixed to the outside of the front suspension bracket assembly by bolts, and the bottom of the rocker arm clip is threadedly connected to the stabilizer bar by bolts.

[0011] Furthermore, the hinge joint between the front suspension bracket assembly and the rocker arm is a double bearing structure, and the outer ring of the double bearing structure is interference-fitted with the front suspension bracket assembly, while the clearance of the connecting shaft of the rocker arm is fitted with the inner ring of the double bearing structure.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The front suspension assembly of this commercial vehicle cab features rocker arms on both sides of the stabilizer bar connected to the front suspension bracket assembly via hinges. This connection method facilitates manufacturing and assembly, reducing production costs. The height valve bracket is bolted to the outside of the front suspension bracket assembly, and the rocker arm clips are threadedly connected to the stabilizer bar via bolts, making installation and disassembly convenient and further reducing production and maintenance costs. The hinge joint between the front suspension bracket assembly and the rocker arms uses a double bearing structure. The outer ring has an interference fit to ensure a firm fit, while the inner ring has a clearance fit to ensure flexible rotation, ensuring stability during vehicle operation and reducing component wear, thus extending service life. In addition, the rubber sleeves inside the rocker arms provide cushioning and shock absorption, reducing vibration damage to various components and enhancing overall strength and service life. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model.

[0017] In the diagram: 1. Stabilizer bar; 2. Rocker arm; 3. Front suspension bracket assembly; 4. Height valve body; 5. Height valve adjusting rod; 6. Rubber sleeve; 7. Rocker arm clip; 101. Height valve bracket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 3 In this embodiment, a front suspension assembly for a commercial vehicle cab includes a stabilizer bar 1, with adjustment mechanisms provided on the left and right sides of the stabilizer bar 1.

[0020] In this embodiment, the adjustment mechanism includes rocker arms 2 arranged on the left and right sides of the stabilizer bar 1. A front suspension bracket assembly 3 is arranged on the side of the two rocker arms 2 away from the stabilizer bar 1. The hinge part between the front suspension bracket assembly 3 and the rocker arm 2 is a double bearing structure. The outer ring of the double bearing structure is interference-fitted with the front suspension bracket assembly 3. The clearance of the connecting shaft of the rocker arm 2 is matched with the inner ring of the double bearing structure, which facilitates flexible adjustment and allows for the addition of lubricating oil for lubrication, reducing frictional damping.

[0021] The stabilizer bar 1 is hollow inside. The rocker arm 2 is located at the upper end of the front suspension bracket assembly 3 and is hinged to the front suspension bracket assembly 3 to facilitate the hinged rotation of the rocker arm 2. A height valve bracket 101 is fixedly installed on one side of the front suspension bracket assembly 3. A height valve body 4 is fixedly installed on the front side of the height valve bracket 101. The output shaft of the height valve body 4 is provided with a height valve adjusting rod 5 connected to the bottom of the rocker arm 2. A rubber sleeve 6 is provided inside the rocker arm 2.

[0022] In this embodiment, a central hole is provided inside the central area of ​​the rocker arm 2, and the rubber sleeve 6 is located inside the central hole of the rocker arm 2, which helps to fit and fix the rubber sleeve 6. Two rocker arm clips 7 are provided on the outside of the stabilizer bar 1. The two rocker arm clips 7 are located on both sides of the stabilizer bar 1 near the rocker arm 2, and the two rocker arm clips 7 are symmetrically distributed on the stabilizer bar 1. The height valve bracket 101 is fixed to the outside of the front suspension bracket assembly 3 by bolts. The bottom of the rocker arm clip 7 is threaded to the stabilizer bar 1 by bolts, which helps to install, fix and remove the height valve bracket 101 and the rocker arm clip 7.

[0023] It should be noted that in this commercial vehicle cab front suspension assembly, the rocker arms 2 on both sides of the stabilizer bar 1 are hinged to the front suspension bracket assembly 3. This connection method is easy to manufacture and assemble, reducing production costs. The height valve bracket 101 is fixed to the outside of the front suspension bracket assembly 3 with bolts, and the rocker arm clip 7 is threaded to the stabilizer bar 1 with bolts, making installation and disassembly convenient and further reducing production and maintenance costs. The hinge joint between the front suspension bracket assembly 3 and the rocker arm 2 adopts a double bearing structure. The outer ring interference fit ensures a firm fit, while the inner ring clearance fit ensures flexible rotation, ensuring stability during vehicle operation and reducing component wear, thus extending service life. In addition, the rubber sleeve 6 inside the rocker arm 2 buffers and dampens vibrations, reducing damage to various components and enhancing overall strength and service life.

[0024] The working principle of the above embodiments is as follows:

[0025] In this commercial vehicle cab front suspension assembly, the stabilizer bar 1 has a hollow structure, which reduces weight and material weight while ensuring strength, thus saving costs. The rocker arms 2 on both sides of the stabilizer bar 1 are hinged to the front suspension bracket assembly 3, which supports the cab. When the vehicle encounters bumps during driving, the up and down movement of the cab will drive the front suspension bracket assembly 3 to move, which in turn causes the rocker arms 2 to rotate around the hinge point. The height valve body 4 on the height valve bracket 101 plays a key adjustment role. The height valve body 4 is connected to the rocker arms 2 through the height valve adjustment rod 5. When the height of the cab changes due to load changes, the height valve body 4 can sense this change and adjust the position of the rocker arms 2 through the height valve adjustment rod 5.

[0026] The rubber sleeve 6 inside the rocker arm 2 can buffer and dampen vibrations, reducing the transmission of vibrations from the vehicle to the cab. Meanwhile, the rocker arm clip 7 on the outside of the stabilizer bar 1 is used to fix the stabilizer bar 1 and ensure its stability during operation. The hinge joint between the front suspension bracket assembly 3 and the rocker arm 2 adopts a double bearing structure. The outer ring is interference-fitted with the front suspension bracket assembly 3 to ensure a firm connection, while the inner ring is clearance-fitted with the connecting shaft of the rocker arm 2 to ensure that the rocker arm 2 can rotate flexibly, thereby effectively adjusting and stabilizing the height of the cab. The structure is simple, the manufacturing cost is low, and the performance is enhanced.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A commercial vehicle cab front suspension assembly comprising a stabilizer bar (1), characterized in that: The left and right sides of the stabilizer bar (1) are provided with adjusting mechanisms; The adjusting mechanism comprises rocker arms (2) provided on the left and right sides of the stabilizer bar (1), and a front suspension bracket assembly (3) provided on the side of the two rocker arms (2) away from the stabilizer bar (1), one side of the front suspension bracket assembly (3) is fixedly provided with a height valve bracket (101), the front surface of the height valve bracket (101) is fixedly provided with a height valve body (4), the output shaft of the height valve body (4) is provided with a height valve adjusting rod (5) connected with the bottom of the rocker arm (2), the inside of the rocker arm (2) is provided with a rubber sleeve (6), and the outside of the stabilizer bar (1) is provided with two rocker clamps (7).

2. A commercial vehicle cab front suspension assembly as claimed in claim 1, characterized by: The stabilizer bar (1) is hollow, the rocker arm (2) is located at the upper end of the inside of the front suspension bracket assembly (3), and the rocker arm (2) is hinged to the front suspension bracket assembly (3).

3. A commercial vehicle cab front suspension assembly as claimed in claim 1, characterized by: The central region of the rocker arm (2) is internally provided with a middle hole, and the rubber sleeve (6) is located in the middle hole of the rocker arm (2).

4. A commercial vehicle cab front suspension assembly as claimed in claim 1, characterized by: The two rocker clamps (7) are located on the two sides of the stabilizer bar (1) close to the rocker arms (2), and the two rocker clamps (7) are symmetrically distributed on the stabilizer bar (1).

5. A commercial vehicle cab front suspension assembly as defined in claim 1, characterized by: The height valve bracket (101) is fixed on the outside of the front suspension bracket assembly (3) by bolts, and the bottom of the rocker clamp (7) is threadedly connected with the stabilizer bar (1) by bolts.

6. A commercial vehicle cab front suspension assembly as defined in claim 1, characterized by: The hinged part of the front suspension bracket assembly (3) and the rocker arm (2) is a double-bearing structure, the outer ring of the double-bearing structure is interference-fitted with the front suspension bracket assembly (3), and the connecting shaft gap of the rocker arm (2) is matched with the inner ring of the double-bearing structure.

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