Transverse thrust rod assembly structure of lightweight commercial vehicle

Abstract

The invention is suitable for the technical field of transverse thrust rods, and provides a lightweight commercial vehicle transverse thrust rod assembly structure which comprises a rod body with a rectangular cross section, pin seats are fixed to the two ends of the rod body correspondingly, and end seat shells fixedly connected with the pin seats penetrate through the pin seats; a spherical pin with the two ends extending to the outside of the end seat shell is arranged in the end seat shell, and a clamping spring matched with the spherical pin is arranged in the end seat shell. A rod body integrated steel plate material is adopted, the tension and compression stress strength requirement is met, the bending strength under the use working condition is guaranteed, and meanwhile the material preparation and storage difficulty is greatly reduced. The structure change enables the target price to be reduced by 40%, the rod body is changed into a cold plate from a seamless pipe, and the pin seat is changed into a 45 steel pipe from a 45 steel normalizing piece, so that the cost is effectively controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of lateral thrust rods, and more specifically, it relates to a lightweight commercial vehicle lateral thrust rod assembly structure. Background Art

[0002] In the existing vehicle suspension system, the lateral thrust rod is one of the key components, and its main function is to limit the lateral displacement of the axle to ensure the stability and safety of vehicle driving. In the current market, the lateral thrust rod design adopted by some tractor rear axles usually uses a friction welding structure. The rod body is made of Q355 seamless pipe material, the rod head is made of 45 steel normalized material, and the ball joint uses 40Cr material. This design has a high load-bearing capacity in the tensile and compressive axis directions, and the calculated design safety factor exceeds 3.0, showing a strong design redundancy. However, this design also brings a series of problems, such as the difficulty in material preparation and storage, high production costs, the need to use high-power equipment (such as friction welding equipment, with a power usually above 200 Kw) during the processing, and relatively low processing efficiency. In addition, with the change of the whole vehicle model, the adaptability of the existing lateral thrust rod is also restricted to a certain extent, and it is difficult to meet the diverse market demands. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a lightweight commercial vehicle lateral thrust rod assembly structure.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] The present invention is a lightweight commercial vehicle lateral thrust rod assembly structure, including a rod body with a rectangular cross-section. Both ends of the rod body are fixed with pin seats. A end seat housing fixedly connected to the pin seat penetrates through the pin seat. A spherical pin with both ends extending outside the end seat housing is arranged inside the end seat housing. A circlip cooperating with the spherical pin is arranged inside the end seat housing.

[0006] As a preferred technical solution of the present invention, the rod body is made of an integral 45 steel steel plate. The cross-section of the rod body is 50mm * 30mm. The pin seats are made of 45 steel steel pipe fittings. The rod body and the two pin seats at both ends of the rod body are fixedly connected into one body by welding.

[0007] As a preferred technical solution of the present invention, the pin seat is provided with an installation hole for cooperating with the end seat housing.

[0008] As a preferred technical solution of the present invention, the spherical pin is composed of a pin shaft, a bushing and a baffle. The bushing is sleeved outside a section of the pin shaft located inside the end seat housing, and the bushing is in close contact with the inner surface of the end seat housing. The baffle is arranged circumferentially at both ends of the bushing, and the circlip is sleeved on the baffle.

[0009] As a preferred technical solution of the present invention, a clamping groove for cooperating with the circlip is provided on the inner wall of the end seat housing.

[0010] As a preferred technical solution of the present invention, the bushing is composed of several rubber sleeves.

[0011] The advantages of the present invention are as follows:

[0012] 1. The present invention adopts a rod body integrally formed of 45 steel plate material with a cross-section design of 50×30, which not only meets the requirements of tensile and compressive strength, but also ensures the bending strength under the working conditions, and at the same time greatly reduces the difficulty of material preparation and storage. The structural change enables the target price to be reduced by 40%. By changing the rod body from seamless pipe to cold plate sheet and changing the pin seat from 45 steel normalized part to 45 steel steel pipe part, the cost is effectively controlled.

[0013] 2. The present invention omits the friction welding process, reduces the processing cost of the product, and eliminates the energy consumption of the equipment.

[0014] 3. The end seat housing part of the present invention can be manufactured step by step according to the processing production rhythm, greatly improving the processing efficiency of the product. This improvement helps to shorten the production cycle and increase the production capacity.

[0015] 4. The welding treatment is carried out between the pin seat and the rod body of the present invention, changing the original connection method and improving the overall effectiveness. This improvement enhances the stability and durability of the lateral thrust rod, and helps to improve the overall performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a lightweight commercial vehicle lateral thrust rod assembly structure of the present invention.

[0017] Figure 2 It is a sectional structural schematic diagram of the lateral thrust rod assembly of the present invention.

[0018] Figure 3 For the present invention Figure 2 The partial enlarged structural schematic diagram at A in.

[0019] Figure 4 It is a structural schematic diagram of the spherical pin and the circlip of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the spherical pin.

[0021] In the drawings: 1. Rod body; 2. Pin seat; 3. End seat housing; 4. Spherical pin; 401. Pin shaft; 402. Bush; 403. Baffle; 5. Circlip. Specific embodiments

[0022] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are in very simplified forms and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the objectives of the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Embodiment 1: Please refer to Figures 1 - 5 The structural schematic diagram, and the present invention provides the following technical solutions:

[0026] Specifically, it refers to a lightweight commercial vehicle transverse thrust rod assembly structure, including a rod body 1 with a rectangular cross-section, the rod body 1 is made of an integral 45 steel plate, the cross-section of the rod body 1 is 50mm * 30mm, and pin seats 2 are fixed at both ends of the rod body 1. The pin seats 2 are made of 45 steel pipe fittings. The rod body 1 and the two pin seats 2 at both ends of the rod body 1 are fixedly connected into one body by welding. Welding treatment is carried out between the pin seat 2 and the rod body 1 to change the connection method and improve the overall effectiveness.

[0027] The rod body 1 is changed from seamless pipe to cold plate sheet, and the pin seat 2 is changed from 45 steel normalized parts to 45 steel pipe fittings. The structural change brings a cost reduction, and the target price can be reduced by 40%. The friction welding process is omitted during the processing, reducing the processing cost of the product and eliminating the energy consumption of the equipment. The power of the existing single-rental equipment is all above 200Kw.

[0028] A socket 2 is penetrated by an end seat housing 3 fixedly connected to the socket 2. A spherical pin 4 with both ends extending outside the end seat housing 3 is arranged inside the end seat housing 3. A snap ring 5 matched with the spherical pin 4 is arranged inside the end seat housing 3. A clamping groove matched with the snap ring 5 is formed on the inner wall of the end seat housing 3. The snap ring 5 is used to install the spherical pin 4 inside the end seat housing 3. The design that part of the end seat housing 3 is separated from the socket 2 and the rod body 1 can be manufactured according to the processing production rhythm in different working steps, greatly improving the processing efficiency of the product.

[0029] The socket 2 is provided with a mounting hole matched with the end seat housing 3. Since the socket 2 is made of a 45 steel pipe fitting, the mounting hole pre-exists, eliminating the need for hole-opening operation, further improving production capacity and reducing production and processing costs.

[0030] According to the changes in the whole vehicle model, the adaptability of the product is extremely strong. The manufacturing of the rod body 1 of the rod can change with the changes in the requirements of the whole vehicle. The processing process is simple. As the length changes, the blanking procedure follows the change. With the advancement of the country's infrastructure construction and highway optimization and transformation, the designed safety factor only needs to meet the range between 1.2 and 1.5, and the designed safety factor does not need to exceed 3.0. This reasonable designed safety factor not only ensures the safety of the product but also avoids the waste of resources caused by over-design.

[0031] In summary, the lateral thrust rod design proposed by the present invention shows significant beneficial effects in aspects such as material optimization, cost reduction, processing efficiency improvement, adaptability enhancement, and overall effectiveness improvement, and has broad application prospects and market potential.

[0032] Embodiment 2:

[0033] Based on the specific Embodiment 1, the difference in this embodiment is:

[0034] As Figure 3 、 Figure 5 shown, the spherical pin 4 is composed of a pin shaft 401, a bushing 402, and a baffle 403. The bushing 402 is sleeved outside a section of the pin shaft 401 located inside the end seat housing 3, and the bushing 402 is in fitting contact with the inner surface of the end seat housing 3. The baffle 403 is arranged circumferentially at both ends of the bushing 402. The snap ring 5 is sleeved on the baffle 403. The bushing 402 is composed of several rubber sleeves.

[0035] The rubber material itself has good elasticity. In this embodiment, the bushing 402 is designed as several rubber sleeves. During the operation of the spherical pin 4, when subjected to a lateral thrust, the rubber sleeves can undergo elastic deformation, playing a buffering role, effectively absorbing and dispersing the impact force, reducing the direct impact on components such as the rod body 1 and the pin seat 2, reducing the risk of component damage, and extending the service life of the product. The elastic characteristics of the rubber sleeves enable the bushing 402 to better adapt to different working loads and changes in working conditions. In the case of large load changes or complex working conditions, the rubber sleeves can automatically adjust their deformation degree to ensure that the fit between the spherical pin 4 and the end seat housing 3 is always in good condition, ensuring the normal working performance of the lateral thrust rod assembly.

[0036] In addition, when assembling the bushing 402 composed of several rubber sleeves, due to the flexibility of the rubber, the installation process is relatively smoother, reducing the assembly difficulty. At the same time, if a certain section of the rubber sleeve is worn or damaged, the damaged section can be replaced separately without replacing the entire bushing 402, reducing the maintenance cost. During the vehicle driving process, the lateral thrust rod assembly will be subjected to various vibrations and shocks from the road surface. The rubber sleeve bushing 402 can absorb and attenuate these vibrations, reducing the transmission of vibrations to other vehicle components, and improving the driving smoothness and comfort of the vehicle.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A lightweight commercial vehicle lateral thrust rod assembly structure, characterized in that: It comprises a rod body (1) with a rectangular cross section, and pin seats (2) are fixed at both ends of the rod body (1); The pin seat (2) is penetrated by an end seat shell (3) fixedly connected to the pin seat (2); a spherical pin (4) with both ends extending to the outside of the end seat shell (3) is arranged inside the end seat shell (3); and a retaining spring (5) cooperating with the spherical pin (4) is arranged inside the end seat shell (3).

2. A lightweight commercial vehicle lateral thrust rod assembly structure according to claim 1, characterized in that: The rod body (1) is made of an integrated 45 steel plate, and the cross-section of the rod body (1) is 50 mm*30 mm.

3. A lightweight commercial vehicle lateral thrust rod assembly structure according to claim 2, characterized in that: The pin seat (2) is made of a 45 steel pipe.

4. A lightweight commercial vehicle lateral thrust rod assembly structure according to claim 3, characterized in that: The rod body (1) and two pin seats (2) at both ends of the rod body (1) are fixedly connected into one piece by welding.

5. A lightweight commercial vehicle lateral thrust rod assembly structure according to claim 4, characterized in that: The pin seat (2) is provided with a mounting hole which matches with the end seat housing (3).

6. The lightweight commercial vehicle lateral thrust rod assembly structure according to claim 1, characterized in that: The spherical pin (4) is composed of a pin shaft (401), a sleeve (402) and a baffle (403); the sleeve (402) is sleeved on the outside of a section of the pin shaft (401) located inside the end seat shell (3), and the sleeve (402) is in close contact with the inner surface of the end seat shell (3); the baffle (403) is located at both ends of the sleeve (402) and is circumferentially arranged; and the retaining ring (5) is sleeved on the baffle (403).

7. A lightweight commercial vehicle lateral thrust rod assembly structure according to claim 6, characterized in that: A clamping groove cooperating with the clamping spring (5) is provided on the inner wall of the end seat housing (3).

8. The lightweight commercial vehicle lateral thrust rod assembly structure according to claim 6, characterized in that: The shaft sleeve (402) is composed of a plurality of sections of rubber sleeves.

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