Novel tubular beam type front auxiliary frame
Through the design of the new pipe beam front subframe, the problem of high cost of traditional subframe molds is solved by using pipe beam bending and partial mold forming, and cost reduction and production efficiency improvement are achieved.
Patent Information
- Application Number
- CN202422308957.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The mold cost of the front subframe of traditional passenger cars is high, resulting in high parts development costs, long verification cycles and high change costs.
The new pipe beam front subframe design is adopted, which is completed through pipe beam bending, partial mold forming and welding, avoiding high mold costs and facilitates installation and connection through the design of support components and casing components.
It effectively reduces production costs, shortens development verification cycle, reduces change costs, and improves production efficiency.
Smart Images
Figure CN222988246U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subframes, in particular to a novel tubular beam front subframe. Background Art
[0002] The subframe is not a complete vehicle frame. It can be regarded as the skeleton of the front and rear axles and is an integral part of the front and rear axles. It is just a bracket that supports the front and rear axles and the suspension, enabling the axles and suspension to be connected to the "main frame" through it. It is customarily called the "subframe". The function of the subframe is to block vibration and noise and reduce their direct entry into the carriage.
[0003] The front subframes of traditional passenger cars usually adopt a sheet metal stamping and welding structure. The high mold cost results in high development costs for parts. The long cycle of mold development leads to a long development and verification cycle for parts and high change costs. Therefore, a novel tubular beam front subframe is proposed to address the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a novel tubular beam front subframe to solve the problem of high cost caused by high mold costs during the production of subframes.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A novel tubular beam front subframe includes a subframe main body for supporting the front and rear axles and the suspension. The subframe main body includes a front circular tube cross beam, a left circular tube longitudinal beam, a rear circular tube cross beam, and a right circular tube longitudinal beam. One side of the front circular tube cross beam is fixedly connected to the left circular tube longitudinal beam. One side of the left circular tube longitudinal beam is fixedly connected to the rear circular tube cross beam with an arc-shaped depression in the middle. One side of the rear circular tube cross beam is fixedly connected to the right circular tube longitudinal beam. A support seat assembly is provided on one side of the subframe main body, and a sleeve assembly is fixedly connected to one side of the subframe main body.
[0007] Preferably, the other end of the right circular tube longitudinal beam is fixedly connected to the front circular tube cross beam, and the front circular tube cross beam, the left circular tube longitudinal beam, the rear circular tube cross beam, and the right circular tube longitudinal beam are respectively fixedly connected to form a quadrilateral frame.
[0008] Preferably, the support seat assembly includes a rear suspension support seat, a right suspension support seat, a front suspension support seat, and a water tank support seat. A rear suspension support seat is fixedly connected to one side of the rear circular tube cross beam. A right suspension support seat and a front suspension support seat are fixedly connected to the top of the front circular tube cross beam. A water tank support seat is fixedly connected to the other side of the front circular tube cross beam.
[0009] Preferably, the sleeve assembly includes a front mounting sleeve and a rear mounting T-shaped sleeve. Four front mounting sleeves are provided in a group at both ends of the front circular tube cross beam. Four rear mounting T-shaped sleeves are provided in a group and fixedly connected to the rear circular tube cross beam.
[0010] Preferably, a plurality of through holes for bolt connection are reserved at each support of the support assembly, and a diagonal brace for increasing the stability effect after connection is fixedly connected to the subframe main body.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, through the arranged subframe main body, front circular tube cross beam, left circular tube longitudinal beam, rear circular tube cross beam and right circular tube longitudinal beam, the two ends of the cross beam and the longitudinal beam are welded to each other in pairs to form a quadrilateral frame, thereby forming the overall subframe. Through the arranged support assembly, rear suspension support, right suspension support, front suspension support and water tank support, since each support reserves an installation hole for the bolt, it is convenient to install and connect the subframe main body with other parts in the vehicle. Through the arranged sleeve assembly, front installation sleeve and rear installation T-shaped sleeve, it is used for installation and lapping with the vehicle body. By arranging a plurality of diagonal braces at the subframe main body, the stability of the quadrilateral frame formed by the subframe main body is increased. The subframe main body is completed by tube beam bending, selecting local die forming and welding, which avoids high die costs during production and effectively reduces costs and increases efficiency. Description of the Drawings
[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0014] In the figure: 1, subframe main body; 11, front circular tube cross beam; 12, left circular tube longitudinal beam; 13, rear circular tube cross beam; 14, right circular tube longitudinal beam; 2, support assembly; 21, rear suspension support; 22, right suspension support; 23, front suspension support; 24, water tank support; 3, sleeve assembly; 31, front installation sleeve; 32, rear installation T-shaped sleeve; 4, diagonal brace. Detailed Embodiments
[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0016] It should be noted that the terms used here are only for describing the specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0017] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings, so it should not be construed as a limitation on the protection scope of the present invention.
[0018] Please refer to Figure 1 , the present utility model provides a technical solution:
[0019] A novel tubular beam type front subframe includes a subframe main body 1 for supporting the front and rear axles and suspensions. The subframe main body 1 includes a front circular tube cross beam 11, a left circular tube longitudinal beam 12, a rear circular tube cross beam 13, and a right circular tube longitudinal beam 14. One side of the front circular tube cross beam 11 is fixedly connected to the left circular tube longitudinal beam 12. One side of the left circular tube longitudinal beam 12 is fixedly connected to the rear circular tube cross beam 13 with an arc-shaped depression in the middle. One side of the rear circular tube cross beam 13 is fixedly connected to the right circular tube longitudinal beam 14. A support assembly 2 is provided on one side of the subframe main body 1. A sleeve assembly 3 is fixedly connected to one side of the subframe main body 1. The subframe main body 1 is completed through tube beam bending, selection of local molds for forming, and welding, avoiding high mold costs during production and effectively reducing costs and increasing efficiency.
[0020] The other end of the right circular tube longitudinal beam 14 is fixedly connected to the front circular tube cross beam 11. The front circular tube cross beam 11, the left circular tube longitudinal beam 12, the rear circular tube cross beam 13, and the right circular tube longitudinal beam 14 are respectively fixedly connected to form a quadrilateral frame, facilitating the installation of the subframe main body 1. The support assembly 2 includes a rear suspension support 21, a right suspension support 22, a front suspension support 23, and a water tank support 24. One side of the rear circular tube cross beam 13 is fixedly connected to the rear suspension support 21. The top of the front circular tube cross beam 11 is fixedly connected to the right suspension support 22 and the front suspension support 23. The other side of the front circular tube cross beam 11 is fixedly connected to the water tank support 24, facilitating the installation and connection of the remaining components of the vehicle body. The sleeve assembly 3 includes a front installation sleeve 31 and a rear installation T-shaped sleeve 32. Four front installation sleeves 31 are provided in a group at both ends of the front circular tube cross beam 11. Four rear installation T-shaped sleeves 32 are provided in a group and fixedly connected to the rear circular tube cross beam 13, facilitating the installation and lapping with the remaining components of the vehicle body. A plurality of through holes for bolt connection are reserved at each support of the support assembly 2. A diagonal brace 4 for increasing the stability effect after connection is fixedly connected to the subframe main body 1, facilitating the fixation after connection with other parts at the support assembly 2 and increasing the overall stability effect of the subframe main body 1.
[0021] Workflow: When producing the new tube-beam type front subframe, circular tube beams are first selected. The specifications of the tube beams can be flexibly chosen as steel tubes or aluminum tubes according to the vehicle model. Even in the future, with the progress of welding technology, a combination of steel and aluminum can be achieved. The forming of the tube beam avoids high mold costs, and the circular tube has excellent and stable mechanical properties, which can meet the requirements of part modal performance, stiffness performance, etc. with the lowest weight. Appropriate materials are selected to bend, locally mold and weld the front circular tube crossbeam 11, left circular tube longitudinal beam 12, rear circular tube crossbeam 13 and right circular tube longitudinal beam 14 to weld them into a quadrilateral frame, that is, to form the subframe body 1. The front mounting sleeve 31 and the rear mounting T-shaped sleeve 32 are welded to the locally stamped forming area of the subframe body 1, and the Z-direction position can be adjusted to meet the adjustment of the ground clearance bandwidth of cars and SUVs on the same platform. The support assembly 2 adopts a sheet metal stamping forming structure to ensure the diversity of the mounting point structure and dimensional accuracy. At the same time, the interface dimensions and structure at the installation of the support assembly 2 should ensure platform universality. The subframe body 1 is completed through tube beam bending, local mold forming and welding, which avoids high mold costs during production and effectively reduces costs and increases efficiency.
[0022] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description and drawings of the specification. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.
[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel tubular beam front subframe, comprising a subframe body (1) for supporting front and rear axles and suspension, characterized in that: The sub-frame body (1) comprises a front round tube cross beam (11), a left round tube longitudinal beam (12), a rear round tube cross beam (13) and a right round tube longitudinal beam (14); one side of the front round tube cross beam (11) is fixedly connected to the left round tube longitudinal beam (12); one side of the left round tube longitudinal beam (12) is fixedly connected to the rear round tube cross beam (13) with an arc-shaped depression in the middle; one side of the rear round tube cross beam (13) is fixedly connected to the right round tube longitudinal beam (14); one side of the sub-frame body (1) is provided with a support assembly (2); and one side of the sub-frame body (1) is fixedly connected to a sleeve assembly (3).
2. The novel tubular beam front subframe according to claim 1 is characterized in that: The other end of the right circular tube longitudinal beam (14) is fixedly connected to the front circular tube cross beam (11), and the front circular tube cross beam (11), the left circular tube longitudinal beam (12), the rear circular tube cross beam (13) and the right circular tube longitudinal beam (14) are respectively fixedly connected to each other to form a quadrilateral frame.
3. The novel tubular beam front subframe according to claim 1 is characterized in that: The support assembly (2) comprises a rear suspension support (21), a right suspension support (22), a front suspension support (23) and a water tank support (24); one side of the rear circular tube cross beam (13) is fixedly connected to the rear suspension support (21); the top of the front circular tube cross beam (11) is fixedly connected to the right suspension support (22) and the front suspension support (23); and the other side of the front circular tube cross beam (11) is fixedly connected to the water tank support (24).
4. The novel tubular beam front subframe according to claim 1 is characterized in that: The sleeve assembly (3) comprises a front mounting sleeve (31) and a rear mounting T-shaped sleeve (32), wherein four of the front mounting sleeves (31) are arranged in a group at both ends of the front round tube cross beam (11), and four of the rear mounting T-shaped sleeves (32) are fixedly connected to the rear round tube cross beam (13).
5. The novel tubular beam front subframe according to claim 1 is characterized in that: A plurality of through holes for bolt connection are reserved at each support of the support assembly (2), and a diagonal brace (4) for increasing the stability effect after connection is fixedly connected to the auxiliary frame body (1).