A front axle section structure of a full-load passenger car frame

Abstract

The application discloses a full-load passenger car frame front axle section structure, which comprises a suspension system mounting assembly, a passageway assembly, a wheel cover assembly, a front section assembly and a rear section assembly; the suspension system mounting assembly comprises four groups of thrust rod support mounting components, two groups of air bag mounting components, a stabilizer bar mounting component and two groups of shock absorber mounting components, and the components are respectively mounted on the passageway assembly, the wheel cover assembly, the front section assembly and the rear section assembly. The application has the advantages of light and reasonable structure, firm stability and convenient assembly.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of vehicles, in particular to a full-load passenger car frame front axle section structure. BACKGROUND

[0002] At present, the passenger car chassis frame generally adopts a full-load structure. The suspension system mounting bracket involved in the frame front axle section is prone to stress concentration and assembly inconvenience.

[0003] For example, Chinese patent application (application number: 201921401637.6) discloses a bus chassis front suspension structure, which comprises a longitudinal beam, a passage bending plate, a reinforcing angle plate, a reinforcing rib and a passage section assembly. The passage bending plate is a U-shaped structure, and the bottom of the passage bending plate is a plane, and the both ends of the bottom of the passage bending plate are provided with bending right angles of circular arc structure. This technical solution describes a bus chassis front suspension structure in detail, but the system does not involve thrust rod support mounting assembly, stabilizer bar mounting assembly and two groups of shock absorber mounting assembly.

[0004] For example, Chinese patent application (application number: 202122047984.7) discloses a front axle section frame of an electric bus, which comprises: two longitudinal support assemblies, one longitudinal support assembly is arranged on each side of the front axle section frame, and the longitudinal support assembly comprises a first longitudinal beam and a second longitudinal beam arranged side by side in the height direction; a containing space is formed between the two longitudinal support assemblies; a plurality of transverse support assemblies are arranged between the two longitudinal support assemblies and divide the containing space into a first mounting space and a second mounting space; and the transverse support assembly comprises one or more cross beams. This technical solution describes a front axle section frame of an electric bus in detail, but the system only involves the leaf spring suspension state frame structure.

[0005] As disclosed in Chinese patent application (application number: 201810680707.X), a kind of automobile and its frame are disclosed.The automobile includes frame, frame includes frame body, frame body includes at least one longitudinal force transmission unit, longitudinal force transmission unit includes at least one cab longitudinal force transmission beam and at least one front axle longitudinal force transmission beam, the rear end of at least one cab longitudinal force transmission beam is connected with the corresponding front axle longitudinal force transmission beam with intermediate force transmission beam.When high-speed collision occurs to the automobile, collision force is transmitted from the front end of driving longitudinal force transmission beam to the rear end of driving longitudinal force transmission beam, then is transmitted to the front axle longitudinal force transmission beam, then is transmitted to other places of the front axle frame body part through the front axle longitudinal force transmission beam, the front axle frame body part is deformed, absorbs collision energy, reduces the acceleration of the automobile, reduces the inertial force damage suffered by the driver, while reducing the deformation of the corresponding cab frame body part of cab, ensure the survival space of driver.This technical solution describes a kind of automobile and its frame in detail, but the system does not involve thrust rod support mounting assembly, stabilizer bar mounting assembly, two groups of shock absorber mounting assembly and aisle assembly.

[0006] As disclosed in Chinese patent application (application number: 201921913770.X), a kind of lightweight front axle frame suitable for low-floor bus is disclosed, including front beam, lap beam, column, small beam, arc beam, air bag support, connecting plate, floor, lower column and rear beam, the front beam, lap beam, column and small beam form front section, the lap beam, column, lower column and rear beam form rear section, the front section and rear section are connected into a whole through arc beam, connecting plate and floor;Six columns are symmetrically welded on the front beam, two lap beams are symmetrically welded above the left and right side columns;Two rear beams in rear section are arranged under floor, six lower columns are symmetrically arranged between two rear beams, six columns are also symmetrically arranged on rear beam corresponding to the column position of front section, two lap beams are also symmetrically welded above the left and right side columns in rear section.This technical solution describes a kind of lightweight front axle frame suitable for low-floor bus in detail, but the system does not involve thrust rod support mounting assembly, stabilizer bar mounting assembly, two groups of shock absorber mounting assembly and aisle assembly. SUMMARY

[0007] The technical problem to be solved by the present application is to provide a full-load passenger car frame front axle section structure that is light and reasonable in structure, firm and stable, and easy to assemble.

[0008] To solve the above technical problems, the present application adopts the following technical solutions:

[0009] A full bearing passenger car frame front axle section structure, which comprises a suspension system mounting assembly, a passageway assembly, a wheel cover assembly, a front cross section assembly and a rear cross section assembly; the suspension system mounting assembly comprises four groups of thrust rod support mounting components, two groups of air bag mounting components, a stabilizer bar mounting component and two groups of shock absorber mounting components, which are respectively mounted on the passageway assembly, the wheel cover assembly, the front cross section assembly and the rear cross section assembly.

[0010] As a further improvement of the present application: the passageway assembly comprises a first passageway upright plate, a second passageway upright plate, a first passageway bottom plate and a second passageway bottom plate; the first passageway upright plate and the second passageway upright plate are provided with reinforcing channel steels, which are provided with U-shaped notches avoiding the air bag position and sealing plates.

[0011] As a further improvement of the present application: the two groups of shock absorber mounting components are welded and fixed on the framework through the first passageway upright plate and the second passageway upright plate.

[0012] As a further improvement of the present application: the connection of the first passageway upright plate and the second passageway upright plate with the front cross section assembly and the rear cross section assembly is provided with a first reinforcing plate and a second reinforcing plate, which are both in L-shaped structure and provided with first plug welding holes.

[0013] As a further improvement of the present application: the first passageway bottom plate is provided with the stabilizer bar mounting component and is in U-shaped structure; the second passageway bottom plate is provided with weight reduction holes.

[0014] As a further improvement of the present application: the wheel cover assembly comprises a first wheel cover longitudinal beam, a second wheel cover longitudinal beam and a short longitudinal beam, the first wheel cover longitudinal beam and the second wheel cover longitudinal beam are connected through the short longitudinal beam; the wheel cover assembly is connected with the first passageway upright plate and the second passageway upright plate in a fixed manner through the second wheel cover longitudinal beam.

[0015] As a further improvement of the present application: the connection of the first wheel cover longitudinal beam with the air bag mounting component is provided with a reinforcing backing plate, which is in trapezoidal structure and provided with backing plate weight reduction holes.

[0016] As a further improvement of the present application: the connection of the first wheel cover longitudinal beam with the front cross section assembly and the rear cross section assembly is provided with reinforcing angles.

[0017] As a further improvement of the present application: the front cross section assembly comprises a first longitudinal beam, a second longitudinal beam, a third longitudinal beam, a first front upright column and a second front upright column; the first longitudinal beam is provided with a wire passing hole, and the first longitudinal beam is connected with the second longitudinal beam and the third longitudinal beam in a fixed manner through the first front upright column and the second front upright column.

[0018] As a further improvement of the present application: the rear cross-section assembly comprises a cross beam assembly, a first cross beam, a second cross beam, a first rear upright column and a second rear upright column; the cross beam assembly is connected with the first cross beam and the second cross beam through the first rear upright column and the second rear upright column in a fixed connection mode.

[0019] As a further improvement of the present application: the thrust rod support mounting assembly comprises a first upper thrust rod assembly, a second upper thrust rod assembly, a first lower thrust rod assembly and a second lower thrust rod assembly; the first upper thrust rod assembly and the second upper thrust rod assembly are connected with the first front upright column in the front cross-section assembly through the upper thrust rod support pad in a fixed connection mode; the first lower thrust rod assembly and the second lower thrust rod assembly are connected with the first longitudinal beam in the front cross-section assembly through the lower thrust rod support pad assembly in a fixed connection mode.

[0020] As a further improvement of the present application: the lower thrust rod support pad assembly comprises a Z-shaped bent plate, a triangular reinforcing plate and a U-shaped support plate; the Z-shaped bent plate is provided with a second plug welding hole.

[0021] As a further improvement of the present application: the stabilizer bar mounting assembly comprises a first stabilizer bar mounting support, a second stabilizer bar mounting support and a stabilizer bar mounting plate; the stabilizer bar mounting plate is a U-shaped mounting plate, and the U-shaped opening size of the stabilizer bar mounting plate is adapted to the first stabilizer bar mounting support and the second stabilizer bar mounting support.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The full-load passenger car frame front axle section structure discloses a new front axle section structure, and the frame front axle section structure comprises: a suspension system mounting assembly, a passageway assembly, a wheel cover assembly, a front cross-section assembly and a rear cross-section assembly. The suspension system mounting assembly comprises four groups of thrust rod support mounting assemblies, two groups of air bag mounting assemblies, a stabilizer bar mounting assembly and two groups of shock absorber mounting assemblies, and each assembly is mounted on the passageway assembly, the wheel cover assembly, the front cross-section assembly and the rear cross-section assembly, respectively. The present application has sufficient strength and rigidity, and can effectively solve the problems of stress concentration and assembly inconvenience. The present application can effectively avoid the problem of stress concentration of the suspension system installation. The structure is light, reasonable, reliable, stable and convenient to assemble. After the structure of the present application is adopted, the running safety and reliability of the whole vehicle are high, and the lightweight and rigidity requirements of the passenger car frame can be met. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural principle schematic diagram of the present application.

[0025] Figure 2 It is a front view structural principle schematic diagram of the present application in a specific application example.

[0026] Figure 3Fig. 1 is a schematic diagram of the structural principle of the thrust rod support mounting assembly in a specific application example of the present application.

[0027] Figure 4 Fig. 2 is a schematic diagram of the structural principle of the stabilizer bar mounting assembly in a specific application example of the present application.

[0028] Legend:

[0029] 1, suspension system mounting assembly; 2, passageway assembly; 3, wheel cover assembly; 4, front cross-section assembly; 5, rear cross-section assembly; 6, thrust rod support mounting assembly; 7, air bag mounting assembly; 8, stabilizer bar mounting assembly; 9, shock absorber mounting assembly; 10, first passageway upright; 11, second passageway upright; 12, first passageway bottom plate; 13, second passageway bottom plate; 14, reinforcing channel steel; 15, closing plate; 16, first reinforcing plate; 17, second reinforcing plate; 18, first plug welding hole; 19, weight-reducing hole; 20, first wheel cover longitudinal beam; 21, second wheel cover longitudinal beam; 22, short longitudinal beam; 23, reinforcing gusset; 24, gusset weight-reducing hole; 25, reinforcing angle; 26, first longitudinal beam; 27, second longitudinal beam; 28, third longitudinal beam; 29, first front upright; 30, second front upright; 31, wire passing hole; 32, cross beam assembly; 33, first cross beam; 34, second cross beam; 35, first rear upright; 36, second rear upright; 37, first upper thrust rod assembly; 38, second upper thrust rod assembly; 39, first lower thrust rod assembly; 40, second lower thrust rod assembly; 41, upper thrust rod support gusset; 42, lower thrust rod support gusset assembly; 43, Z-shaped bent plate; 44, triangular reinforcing plate; 45, U-shaped support plate; 46, second plug welding hole; 47, first stabilizer bar mounting support; 48, second stabilizer bar mounting support; 49, stabilizer bar mounting plate; 50, third plug welding hole; 51, fourth plug welding hole. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the drawings and specific examples.

[0031] As shown in the present disclosure and claims, unless the context clearly indicates otherwise, the words "one", "an", "a", and / or "the" do not mean only one item or thing but are used to include one or more items or things. The words "first", "second", and similar words in the present disclosure do not mean any order, number, or importance, but are used only to distinguish different components. Similarly, the words "include" or "contain" and similar words mean that the components or objects listed before the words encompass the components or objects listed after the words and their equivalents, without excluding other components or objects. The words "connect" or "connected" and similar words do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0032] AsFigures 1-4 As shown, the front axle section structure of the full-load passenger car frame of the present application comprises: a suspension system mounting assembly 1, a passageway assembly 2, a wheel cover assembly 3, a front cross-section assembly 4 and a rear cross-section assembly 5; wherein the suspension system mounting assembly 1 comprises four groups of thrust rod support mounting components 6, two groups of air bag mounting components 7, a stabilizer bar mounting component 8 and two groups of shock absorber mounting components 9, and each of the above components is mounted on the passageway assembly 2, the wheel cover assembly 3, the front cross-section assembly 4 and the rear cross-section assembly 5, respectively. Through the above structure of the present application, the problem of stress concentration in the suspension system mounting can be effectively avoided, and the overall structure of the present application is light, reasonable, firm, stable, easy to assemble, safe to operate, and has high reliability, and meets the lightweight and rigidity requirements of the passenger car frame.

[0033] In a specific application example, the passageway assembly 2 comprises a first passageway upright plate 10 and a second passageway upright plate 11 with a thickness of 4 mm, a first passageway bottom plate 12 with a thickness of 8 mm and a second passageway bottom plate 13 with a thickness of 4 mm; wherein the first passageway upright plate 10 and the second passageway upright plate 11 are provided with a reinforcing channel steel 14, the reinforcing channel steel 14 is provided with a U-shaped notch avoiding the position of the air bag and is provided with a sealing plate 15 for sealing. By providing the reinforcing channel steel 14, the longitudinal rigidity of the frame is enhanced, and the welding deformation of the first passageway upright plate 10 and the second passageway upright plate 11 is avoided.

[0034] The two groups of shock absorber mounting components 9 are welded and fixed on the framework through the first passageway upright plate 10 and the second passageway upright plate 11. The connection between the first passageway upright plate 10 and the second passageway upright plate 11 and the front cross-section assembly 4 and the rear cross-section assembly 5 is provided with a first reinforcing plate 16 and a second reinforcing plate 17, both of which are L-shaped structures and are provided with a first plug welding hole 18, which is a circular plug welding hole. The stabilizer bar mounting component 8 is arranged on the first passageway bottom plate 12, which is a U-shaped structure, increasing the longitudinal rigidity and improving the jumping space of the axle; the second passageway bottom plate 13 is provided with a weight-reducing hole 19, which is a circular weight-reducing hole, achieving the purpose of weight reduction while eliminating the residual stress of the welding of the passageway bottom plate 13.

[0035] In a specific application example, the wheel cover assembly 3 comprises a first wheel cover longitudinal beam 20, a second wheel cover longitudinal beam 21 and a short longitudinal beam 22, and the first wheel cover longitudinal beam 20 and the second wheel cover longitudinal beam 21 are connected through the short longitudinal beam 22; the wheel cover assembly 3 is connected with the first passageway upright plate 10 and the second passageway upright plate 11 in a welded manner through the second wheel cover longitudinal beam 21. The connection between the first wheel cover longitudinal beam 20 and the air bag mounting component 7 is provided with a reinforcing gusset plate 23, which is a trapezoidal structure and is provided with a gusset plate weight-reducing hole 24, which is a circular weight-reducing hole.

[0036] As a preferred embodiment, further, the connection of the first wheelhouse longitudinal beam 20 and the front cross-section assembly 4 and the rear cross-section assembly 5 is provided with a reinforcing corner 25, and the arrangement of the reinforcing gusset plate 23 and the reinforcing corner 25 can effectively avoid the problem of stress concentration.

[0037] In the present example, the first wheelhouse longitudinal beam 20 is a rectangular tube with a thickness of 3 mm, a height of 50 mm, and a width of 60 mm, the second wheelhouse longitudinal beam 21 is a rectangular tube with a thickness of 2 mm, a height of 30 mm, and a width of 30 mm, and the short longitudinal beam 22 is a rectangular tube with a thickness of 3 mm, a height of 50 mm, and a width of 50 mm.

[0038] In a specific application example, the front cross-section assembly 4 includes a first longitudinal beam 26, a second longitudinal beam 27, a third longitudinal beam 28, a first front upright column 29, and a second front upright column 30. The first longitudinal beam 26 is a rectangular tube with a thickness of 4 mm, a height of 80 mm, and a width of 60 mm, and is provided with a wire hole 31 which is an oval wire hole. The first longitudinal beam 26 is connected to the second longitudinal beam 27 and the third longitudinal beam 28 by the first front upright column 29 and the second front upright column 30 in a welded manner.

[0039] In a specific application example, the rear cross-section assembly 5 includes a cross beam assembly 32, a first cross beam 33, a second cross beam 34, a first rear upright column 35, and a second rear upright column 36. The cross beam assembly 32 is connected to the first cross beam 33 and the second cross beam 34 by the first rear upright column 35 and the second rear upright column 36 in a welded manner.

[0040] In a specific application example, the four sets of thrust rod support mounting assemblies 6 include a first upper thrust rod assembly 37, a second upper thrust rod assembly 38, a first lower thrust rod assembly 39, and a second lower thrust rod assembly 40. The first upper thrust rod assembly 37 and the second upper thrust rod assembly 38 are connected to the first front upright column 30 in the front cross-section assembly 4 by an upper thrust rod support gusset plate 41 in a welded manner. The first lower thrust rod assembly 39 and the second lower thrust rod assembly 40 are connected to the first longitudinal beam 26 in the front cross-section assembly 4 by a lower thrust rod support gusset plate assembly 42 in a welded manner.

[0041] In a specific application example, the lower thrust rod support gusset plate assembly 42 includes a Z-shaped bent plate 43, a triangular reinforcing plate 44, and a U-shaped support plate 45. The Z-shaped bent plate 43 is provided with a second plug welding hole 46 which is a circular plug welding hole. The Z-shaped bent plate 43 not only reinforces the connection of the first lower thrust rod assembly 39 and the second lower thrust rod assembly 40 to the first longitudinal beam 26, but also enhances the connection of the first aisle floor 12 to the front cross-section assembly 4, effectively transfers the force at the lower thrust rod, and avoids the problem of stress concentration.

[0042] In the specific application example, the stabilizer bar mounting assembly 8 comprises a first stabilizer bar mounting support 47, a second stabilizer bar mounting support 48 and a stabilizer bar mounting plate 49; the stabilizer bar mounting plate 49 is a U-shaped mounting plate, and the U-shaped opening of the stabilizer bar mounting plate 49 is sized to fit the first stabilizer bar mounting support 47 and the second stabilizer bar mounting support 48. The stabilizer bar mounting plate 49 is a U-shaped mounting plate, and the two stabilizer bar mounting supports are fixed in the integrally formed U-shaped stabilizer bar mounting plate 49, so that the relative position accuracy of the two stabilizer bar mounting supports can be ensured.

[0043] Further, the stabilizer bar mounting plate 49 is provided with a third plug welding hole 50 and a fourth plug welding hole 51; the third plug welding hole 50 is an elliptical plug welding hole, which is arranged close to the first stabilizer bar mounting support 47 and the second stabilizer bar mounting support 48, so as to reduce the distance between the welding seam and the first stabilizer bar mounting support 47 and the second stabilizer bar mounting support 48.

[0044] Further, the fourth plug welding hole 51 is a circular plug welding hole, which can increase the welding area of the stabilizer bar mounting plate 49 and has a weight reduction effect.

[0045] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall be considered as falling within the protection scope of the present application.

Claims

1. A full load bus frame front axle section structure, characterized by, The application relates to a vehicle frame structure, which comprises a suspension system mounting assembly, a passageway assembly, a wheel cover assembly, a front cross-section assembly and a rear cross-section assembly; the suspension system mounting assembly comprises four groups of thrust rod support mounting components, two groups of air bag mounting components, a stabilizer rod mounting component and two groups of shock absorber mounting components, which are respectively mounted on the passageway assembly, the wheel cover assembly, the front cross-section assembly and the rear cross-section assembly; the passageway assembly comprises a first passageway vertical plate, a second passageway vertical plate, a first passageway bottom plate and a second passageway bottom plate; the first passageway vertical plate and the second passageway vertical plate are provided with reinforcing channel steels, the reinforcing channel steels are provided with U-shaped notches for avoiding the air bag positions and are provided with sealing plates; the thrust rod support mounting component comprises a first upper thrust rod component, a second upper thrust rod component, a first lower thrust rod component and a second lower thrust rod component; the first upper thrust rod component and the second upper thrust rod component are connected with a first front vertical column in the front cross-section assembly in a fixed connection mode through an upper thrust rod support pad; the first lower thrust rod component and the second lower thrust rod component are connected with a first longitudinal beam in the front cross-section assembly in a fixed connection mode through a lower thrust rod support pad component; the lower thrust rod support pad component comprises a Z-shaped bent plate, a triangular reinforcing plate and a U-shaped support plate; the Z-shaped bent plate is provided with a second plug welding hole; the stabilizer rod mounting component comprises a first stabilizer rod mounting support, a second stabilizer rod mounting support and a stabilizer rod mounting plate; the stabilizer rod mounting plate is a U-shaped mounting plate, and the U-shaped opening size of the stabilizer rod mounting plate is matched with the first stabilizer rod mounting support and the second stabilizer rod mounting support.

2. The full-load passenger car frame front axle section structure of claim 1, wherein, The two groups of shock absorber mounting components are welded and fixed on the framework through the first passageway vertical plate and the second passageway vertical plate.

3. The full-load passenger car frame front axle section structure of claim 1, wherein, The connection between the first passageway vertical plate and the second passageway vertical plate and the front cross-section assembly and the rear cross-section assembly is provided with a first reinforcing plate and a second reinforcing plate, the first reinforcing plate and the second reinforcing plate are both in L-shaped structures and are provided with first plug welding holes.

4. The full-load passenger car frame front axle section structure of claim 1 wherein, The first passageway bottom plate is arranged with the stabilizer rod mounting component and is in a U-shaped structure; the second passageway bottom plate is provided with lightening holes.

5. The full-load passenger car frame front axle section structure according to any one of claims 1-4, characterized in that, The wheel cover assembly comprises a first wheel cover longitudinal beam, a second wheel cover longitudinal beam and a short longitudinal beam, the first wheel cover longitudinal beam and the second wheel cover longitudinal beam are connected through the short longitudinal beam; the wheel cover assembly is connected with the first passageway vertical plate and the second passageway vertical plate in a fixed connection mode through the second wheel cover longitudinal beam.

6. The full-load passenger car frame front axle section structure of claim 5, wherein, The connection between the first wheel cover longitudinal beam and the air bag mounting component is provided with a reinforcing pad, the reinforcing pad is in a trapezoidal structure and is provided with pad lightening holes.

7. The full-load passenger car frame front axle section structure of claim 6, wherein, The connection between the first wheel cover longitudinal beam and the front cross-section assembly and the rear cross-section assembly is provided with reinforcing angles.

8. The full-load passenger car frame front axle section structure according to any one of claims 1-4, characterized in that, The front cross-section assembly comprises a first longitudinal beam, a second longitudinal beam, a third longitudinal beam, a first front vertical column and a second front vertical column; the first longitudinal beam is provided with a wire passing hole, and the first longitudinal beam is connected with the second longitudinal beam and the third longitudinal beam in a fixed connection mode through the first front vertical column and the second front vertical column.

9. The full-load passenger car frame front axle section structure according to any one of claims 1-4, characterized in that, The rear cross-section assembly comprises a cross beam component, a first cross beam, a second cross beam, a first rear vertical column and a second rear vertical column; the cross beam component is connected with the first cross beam and the second cross beam in a fixed connection mode through the first rear vertical column and the second rear vertical column.

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