Steel-aluminum connecting structure of cab of special vehicle
By adopting the connecting structure of steel plate and aluminum alloy materials in the special vehicle cab, combined with rivets and welding technology, the problem that traditional materials are difficult to meet the needs of lightweight and strength is solved, and the effective connection and structural strength of steel and aluminum mixed materials are achieved. effect.
Patent Information
- Application Number
- CN202421239949.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Traditional single material is difficult to meet the requirements of special vehicle cabs in terms of lightweight, strength, and repairability, especially in different operating conditions.
The steel plate materials are longitudinal beams and cross beams, and the aluminum alloy materials are floors and cross beams. The aluminum components and steel components are assembled through rivet connection and welding to realize the connection between steel and aluminum mixed materials, ensuring strength and reducing quality.
Effective connection between different materials is achieved, structural strength and quality are reduced, and processing costs are low and easy to manufacture.
Smart Images
Figure CN222329842U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a body of a special vehicle, in particular to a steel-aluminum connection structure of a cab of a special vehicle. Background Art
[0002] With the development of the automobile industry, energy conservation, emission reduction, and weight reduction are required, while the necessary strength and maintainability of special vehicles are guaranteed. As a result, traditional single material substitution has been unable to meet the requirements of lightweight automobile bodies to a certain extent. The cab of special vehicles must select different materials according to the structural performance requirements to meet the cab reliability requirements under the working conditions of special vehicles. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a steel-aluminum connection structure for a special vehicle cab. According to the force analysis of different components, the longitudinal beams and cross beams that are greatly affected by vibration are made of steel plate materials to ensure the necessary strength, and the aluminum floor, aluminum front cross beam, aluminum rear cross beam, and aluminum side beam that are less affected by vibration are made of aluminum alloy materials to reduce the mass. According to the connection requirements of different materials, the aluminum components and steel components are assembled into a large component by rivet connection and bolt connection combined with welding through longitudinal aluminum angle plates, transverse aluminum angle plates, and connecting brackets, thereby realizing the connection between different materials of the steel-aluminum hybrid body.
[0004] A steel-aluminum connection structure of a special vehicle cab, comprising an aluminum floor and a floor frame, wherein the aluminum floor is welded to the floor frame, and the floor frame comprises an aluminum component and a steel component, wherein the aluminum component is formed by argon arc welding of an aluminum front cross beam, an aluminum side beam, and an aluminum rear cross beam, and wherein the steel component is formed by CO2 gas shielded welding of a longitudinal beam, a connecting bracket, and a cross beam, wherein the longitudinal beam is connected to a transverse aluminum angle plate, and the cross beam is connected to a longitudinal aluminum angle plate, wherein the aluminum component passes through a connecting bracket of a steel component and is fixedly connected to the steel component through a locking mechanism, and wherein the aluminum component, the longitudinal aluminum angle plate, and the transverse aluminum angle plate are respectively welded to the aluminum floor.
[0005] Preferably, the connecting bracket is formed by welding a transverse channel steel and a longitudinal channel steel.
[0006] Preferably, the locking mechanism comprises bolts and nuts, and the bolts and nuts cooperate to achieve the fixed connection of the aluminum front cross beam and the aluminum rear cross beam to the longitudinal beam, and the fixed connection of the aluminum side beam to the cross beam.
[0007] Preferably, the aluminum side beam comprises an aluminum square tube and a sleeve, and the sleeve is sleeved on the aluminum square tube.
[0008] Preferably, the longitudinal beam, connecting bracket and cross beam are all 510L steel plate parts.
[0009] Preferably, the longitudinal beam is connected to the transverse aluminum angle plate by means of blind rivets.
[0010] Preferably, the cross beam is connected to the longitudinal aluminum angle plate by means of blind rivets.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] The utility model connects components made of different materials, thereby ensuring necessary strength of the structure and reducing the weight of the structure, thereby realizing connection between different materials of a steel-aluminum hybrid vehicle body, having low processing cost and being easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 for Figure 1 AA section view.
[0015] Figure 3 for Figure 1 BB section view.
[0016] Figure 4 This is a cross-sectional view of a Japanese-shaped aluminum square tube.
[0017] As shown in the figure: 1. Aluminum floor; 2. Floor frame; 2-1. Aluminum front crossbeam; 2-2. Longitudinal beam; 2-3. Aluminum side beam; 2-4. Connecting bracket; 2-5. Bolts; 2-6. Nuts; 2-9. Crossbeam; 2-10. Longitudinal aluminum angle plate; 2-11. Transverse aluminum angle plate; 2-12. Aluminum rear crossbeam; 2-13; Blind rivets. DETAILED DESCRIPTION
[0018] The method is further described in conjunction with the accompanying drawings and embodiments. Although the description is clear and complete, it is obvious that the described embodiments are only part of the embodiments of the method, not all of the embodiments. Based on the embodiments of the method, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the method.
[0019] like Figure 1-4The steel-aluminum connection structure of a special vehicle cab shown in the figure includes an aluminum floor 1 and a floor frame 2, the floor frame 2 includes an aluminum component and a steel component, the steel component is formed by welding a longitudinal beam 2-2, a connecting bracket 2-4, and a cross beam 2-9 by CO2 gas protection, the longitudinal beam 2-2, the connecting bracket 2-4, and the cross beam 2-9 are all 510L steel plate parts, the connecting bracket 2-4 is welded by a transverse channel steel 2-4-1 and a longitudinal channel steel 2-4-2, the longitudinal beam 2-2 is connected to the transverse aluminum angle plate 2-11 by a blind rivet 2-13, and the cross beam 2-9 is connected to the longitudinal aluminum angle plate 2-10 by a blind rivet 2-13, and then CO2 gas protection welding is adopted to form a steel component with an aluminum angle plate.
[0020] The aluminum front cross beam 2-1, aluminum side beam 2-3, and aluminum rear cross beam 2-12 made of 6063 aluminum alloy Japanese-shaped square tube material are welded by argon arc welding to form aluminum components. The aluminum side beam 2-3 includes an aluminum square tube 2-3-1 and a sleeve 2-3-2, and the sleeve 2-3-2 is sleeved on the aluminum square tube 2-3-1, with the aluminum square tube 2-3-1 as the main body, and the sleeve 2-3-2 is added at the bolt installation hole to prevent the aluminum square tube 2-3-1 from being deformed by force.
[0021] The aluminum component passes through the connecting bracket 2-4 of the steel component and is fixedly connected to the steel component through a locking mechanism. The locking mechanism includes bolts 2-5, nuts 2-6, flat washers, and elastic washers. That is, the aluminum front cross beam 2-1 and the aluminum rear cross beam 2-12 are fixedly connected to the longitudinal beam 2-2, and the aluminum side beam 2-3 is fixedly connected to the cross beam 2-9 through the cooperation of the bolts 2-5 and the nuts 2-6, so as to realize the assembly of the steel component and the aluminum component into a floor frame 2, and finally the floor frame 2 is fitted with the aluminum floor 1, and the aluminum parts in the floor frame 2 and the aluminum floor 1 are welded into a floor assembly by argon arc welding, so as to achieve the purpose of reducing the weight of the vehicle body while meeting the strength requirements.
[0022] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A steel-aluminum connection structure for a special vehicle cab, characterized in that: It includes an aluminum floor and a floor frame, the aluminum floor is welded to the floor frame, the floor frame includes an aluminum component and a steel component, the aluminum component is formed by argon arc welding of an aluminum front beam, an aluminum side beam, and an aluminum rear beam, the steel component is formed by CO2 gas shielded welding of a longitudinal beam, a connecting bracket, and a cross beam, the longitudinal beam is connected to a transverse aluminum angle plate, the cross beam is connected to a longitudinal aluminum angle plate, the aluminum component passes through the connecting bracket of the steel component and is fixed to the steel component through a locking mechanism, and the aluminum component, the longitudinal aluminum angle plate, and the transverse aluminum angle plate are respectively welded to the aluminum floor.
2. The steel-aluminum connection structure of a special vehicle cab according to claim 1 is characterized in that: The connecting bracket is formed by welding a transverse channel steel and a longitudinal channel steel.
3. The steel-aluminum connection structure of a special vehicle cab according to claim 1 or 2, characterized in that: The locking mechanism comprises bolts and nuts, and the bolts and nuts cooperate to realize the fixed connection between the aluminum front cross beam and the aluminum rear cross beam and the longitudinal beam, and the fixed connection between the aluminum side beam and the cross beam.
4. The steel-aluminum connection structure of a special vehicle cab according to claim 1 is characterized in that: The aluminum side beam comprises an aluminum square tube and a sleeve, and the sleeve is sleeved on the aluminum square tube.
5. The steel-aluminum connection structure of a special vehicle cab according to claim 1 is characterized in that: The longitudinal beams, connecting brackets and cross beams are all 510L steel plate parts.
6. The steel-aluminum connection structure of a special vehicle cab according to claim 1 is characterized in that: The longitudinal beam is connected with the transverse aluminum angle plate through blind rivets.
7. The steel-aluminum connection structure of a special vehicle cab according to claim 1 is characterized in that: The cross beam is connected to the longitudinal aluminum angle plate through blind rivets.