A heavy truck cab body assembly

Abstract

The application discloses a kind of coating-free heavy truck cab body assembly, belong to automobile parts technical field, including the skeleton assembly of aluminium alloy material, the outside of skeleton assembly is equipped with skin component, skeleton assembly includes front wall assembly, floor assembly, rear wall skeleton assembly, wind window skeleton assembly, left side wall skeleton assembly, right side wall skeleton assembly and roof skeleton assembly;Roof skeleton assembly is overall and is the grid structure of crisscross, the end of roof skeleton assembly is equipped with L type gap, and the inner side of L type gap is respectively with wind window skeleton assembly, left side wall skeleton assembly and right side wall skeleton assembly abuts.The skeleton assembly of aluminium alloy material has the advantages of lightweight, low cost, strong corrosion resistance and easy processing, the grid structure of roof skeleton assembly optimizes stress capacity, through the inner side cooperation of L type gap and peripheral component, improves the structural stability of entire skeleton assembly, effectively reduces the risk of roof skeleton assembly and peripheral component fracture caused by external force collision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile parts, in particular to a heavy truck cab body assembly free of painting. BACKGROUND

[0002] Vehicle body painting refers to the process of applying paint to the treated vehicle body (substrate surface) and drying the film. Vehicles are widely used and have a large range of activities, and operate in complex environments, often subject to water, microorganisms, ultraviolet light and other acid and alkali gases and liquids, and sometimes damaged by grinding and scratching. After painting, the paint film (coating film) covering the surface of the vehicle body can isolate the basic material of the part from the atmospheric environment, play a "shielding" role, and prevent rust. In addition, some paints can also have corrosion inhibition effect on metals, such as phosphating primer, which can react with the metal by means of the chemical composition inside the paint to passivate the metal surface.

[0003] Among them, the painting of the cab of the heavy truck is an important link in the production and manufacturing process, which realizes the corrosion prevention of the white body and guarantees the appearance. However, the painting process is complex, the painting cost is high, the chemical management and transportation process is difficult, the danger coefficient is high, and the chemical substances and waste generated in the painting production process are extremely harmful to the human body and the surrounding environment.

[0004] And the existing heavy truck cab white body mostly uses steel sheet or other alloy skin covering parts, which must be treated by electrophoretic painting process, so as to realize the functions of rust prevention and appearance guarantee. However, the steel plate or other alloy material skeleton and skin of the above-mentioned material will increase the self weight; at present, the steel plate material free of painting appears continuously, but it is limited by the thickness, price, material performance or appearance requirement, and there are problems of heavy self weight, high price and difficult processing, which lead to poor structural stability. SUMMARY

[0005] In order to solve the problems of heavy self weight, high price and difficult processing of the skeleton and skin free of painting in the prior art, which lead to poor structural stability, the application provides a heavy truck cab body assembly free of painting.

[0006] The application is realized by the following technical scheme:

[0007] A heavy truck cab body assembly free of painting, comprising an aluminum alloy material skeleton assembly, a skin assembly is arranged outside the skeleton assembly, the skeleton assembly comprises a front wall assembly, a floor assembly, a rear wall skeleton assembly, a windshield skeleton assembly, a left side wall skeleton assembly, a right side wall skeleton assembly and a roof skeleton assembly; the roof skeleton assembly is in a longitudinal and transverse staggered grid structure as a whole, and the end of the roof skeleton assembly is provided with an L-shaped opening, which respectively abuts with the inner sides of the windshield skeleton assembly, the left side wall skeleton assembly and the right side wall skeleton assembly.

[0008] The framework assembly of the aluminum alloy material has the advantages of light weight, low cost, strong corrosion resistance and easy processing, and the grid structure of the roof framework assembly optimizes the stress capacity, and through the cooperation of the L-shaped opening with the inner side of the surrounding components, the structural stability of the whole framework assembly is improved, and the risk of fracture of the roof framework assembly and the surrounding components caused by external force collision is effectively reduced.

[0009] Further improvement of the application is that the lower part of the two ends of the windshield framework assembly is provided with an L-shaped opening, which is respectively connected with the left side framework assembly and the right side framework assembly.

[0010] Further improvement of the application is that the left side framework assembly and the right side framework assembly are provided with an L-shaped opening matched with the windshield framework assembly.

[0011] Further improvement of the application is that the left side framework assembly and the right side framework assembly are symmetrical structures, and the left side framework assembly comprises an A-pillar beam, a side wall upper frame cross beam, a side wall lower frame cross beam and a rear vertical beam, and the side wall upper frame cross beam and the side wall lower frame cross beam are connected between the A-pillar beam and the rear vertical beam.

[0012] Further improvement of the application is that the front wall assembly, the floor assembly, the rear wall framework assembly, the windshield framework assembly, the left side framework assembly, the right side framework assembly and the roof framework assembly are welded with each other.

[0013] Further improvement of the application is that the skin assembly comprises a left side skin, a right side skin, a rear wall skin and a roof skin; the left side skin corresponds to the left side framework assembly, the right side skin corresponds to the right side framework assembly, the rear wall skin corresponds to the rear wall framework assembly, and the roof skin corresponds to the roof framework assembly.

[0014] Further improvement of the application is that the left side skin, the right side skin, the rear wall skin and the roof skin are all made of glass fiber reinforced plastic material.

[0015] Further improvement of the application is that the left side skin and the right side skin respectively reserve a mutual cooperation adhesive flange at the intersection area of the rear wall skin and the roof skin, and the width of the adhesive flange is 20mm.

[0016] Further improvement of the application is that the left side skin, the right side skin, the rear wall skin and the roof skin respectively reserve a 3mm adhesive gap and a 20mm wide bonding surface at the bonding area of the framework assembly.

[0017] Further improvement of the present application is that the left side surrounding skin, the right side surrounding skin, the rear surrounding skin and the top cover skin are respectively provided with a pre-buried nut, the left side surrounding framework assembly, the right side surrounding framework assembly, the top cover framework assembly and the rear surrounding framework assembly are respectively provided with a transition support matched with the pre-buried nut, and the transition support is penetrated by a locking bolt matched with the pre-buried nut.

[0018] From the above technical solution, the beneficial effects of the present application are that the framework assembly of aluminum alloy material has the advantages of light weight, low cost, strong corrosion resistance and easy processing, and the grid structure of the top cover framework assembly optimizes the stress capacity, and through the cooperation of the L-shaped opening with the inner side of the surrounding components, the structural stability of the entire framework assembly is improved, and the risk of fracture of the top cover framework assembly and the surrounding components caused by external force collision is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application, the drawings required in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a schematic diagram of the cab body assembly of the present application.

[0021] Figure 2 It is an exploded view of the cab body assembly structure of the present application.

[0022] Figure 3 It is an exploded view of the framework assembly structure of the present application.

[0023] Figure 4 It is a staggered structure diagram of the present application.

[0024] Figure 5 It is a lower part layout diagram of the A-pillar upright beam of the present application.

[0025] Figure 6 It is a layout structure schematic diagram of the top cover framework assembly of the present application.

[0026] Figure 7 It is Figure 6 It is a schematic diagram of the windshield framework assembly and the top cover framework assembly connection point at D.

[0027] Figure 8 It is Figure 6 It is a schematic diagram of the top cover framework assembly and the left side surrounding framework assembly connection point at E.

[0028] Figure 9 It is a skin pre-buried bolt structure schematic diagram.

[0029] Figure 10 For embedded bolt and its matching schematic diagram.

[0030] Figure 11 For transition bracket structure and skin installation schematic diagram.

[0031] Figure 12 For the Figure 1 A-A section view in the present application.

[0032] Figure 13 For the Figure 1 B-B section view in the present application.

[0033] In the drawings: 1, cab body assembly; 2, skeleton assembly; 3, left side skin; 4, right side skin; 5, rear skin; 6, roof skin; 7, front wall assembly; 8, floor assembly; 9, rear wall skeleton assembly; 10, windshield skeleton assembly; 11, left side wall skeleton assembly; 12, right side wall skeleton assembly; 13, roof skeleton assembly; 14, A-pillar upright; 15, side wall upper frame crossbeam; 16, side wall lower frame crossbeam; 17, transition bracket; 18, embedded bolt; 19, embedded nut; 20, locking bolt; 21, rivet. DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the present application will be described clearly and completely below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present patent.

[0035] As Figures 1-3 shown, a kind of heavy truck cab body assembly of coating-free includes the skeleton assembly 2 of aluminum alloy material, the skeleton assembly 2 includes front wall assembly 7, floor assembly 8, rear wall skeleton assembly 9, windshield skeleton assembly 10, left side wall skeleton assembly 11, right side wall skeleton assembly 12 and roof skeleton assembly 13;Front wall assembly 7, floor assembly 8, rear wall skeleton assembly 9, windshield skeleton assembly 10, left side wall skeleton assembly 11, right side wall skeleton assembly 12 and roof skeleton assembly 13 are mutually welded.The skeleton assembly of aluminum alloy material has the advantages such as light weight, low cost, strong corrosion resistance and easy processing, due to the characteristics of corrosion resistance, realizes the coating-free of skeleton assembly 2.

[0036] As Figures 1-2As shown, the outer part of the framework assembly 2 is provided with a skin assembly, which includes a left side skin 3 corresponding to the left side framework assembly 11, a right side skin 4 corresponding to the right side framework assembly 12, a rear skin 5 corresponding to the rear framework assembly 9, and a roof skin 6 corresponding to the roof framework assembly 13. The left side skin 3, the right side skin 4, the rear skin 5, and the roof skin 6 are all made of glass fiber reinforced plastic material, which guarantees the appearance effect and strength requirement of the cab.

[0037] As shown in the drawings, Figure 6 The roof framework assembly 13 has a longitudinal and transverse staggered grid structure as a whole. The roof framework assembly 13 includes at least two longitudinal beams and at least three transverse beams, which are arranged in a longitudinal and transverse staggered manner. The front end of the longitudinal beam extends forward of the frontmost transverse beam, and the rear end of the longitudinal beam is connected to the rearmost transverse beam. The two ends of the transverse beam extend to the outside of the most lateral longitudinal beam, respectively. An embedding entrance capable of accommodating the transverse beam or the vertical beam is formed on the longitudinal beam or the transverse beam. The longitudinal beam and the transverse beam are connected by the embedding entrance and welding. This helps to improve the structural strength of the overall roof framework assembly 13.

[0038] As shown in the drawings, Figures 6-8 The end part of the roof framework assembly 13 is provided with an L-shaped notch, which is in abutment with the inner side of the window framework assembly 10, the left side framework assembly 11, and the right side framework assembly 12, respectively, and is connected by welding. Specifically, the front end of the longitudinal beam is in an arc shape bent downward, the two ends of the transverse beam are in an arc shape bent downward, and the front end of the longitudinal beam and the two ends of the transverse beam are provided with L-shaped notches, which are arranged at the outermost side of the components. The L-shaped notch of the longitudinal beam is in abutment with the rear part of the window framework assembly 10 (as shown by D in the drawings), and the L-shaped notches of the two ends of the transverse beam are in abutment with the inner side of the left side framework assembly 11 and the inner side of the right side framework assembly 12, respectively (as shown by E in the drawings). The grid structure of the roof framework assembly 13 optimizes the stress capacity, and through the cooperation of the L-shaped notches with the inner side of the surrounding components, the structural stability of the entire framework assembly 2 is improved, effectively reducing the risk of fracture of the roof framework assembly 13 and the surrounding components caused by external force collision.

[0039] As shown in the drawings, Figures 4-5As shown, the lower part of the two ends of the windshield framework assembly 10 is provided with an L-shaped opening, which is respectively clamped with the left side framework assembly 11 and the right side framework assembly 12. The upper end of the left side framework assembly 11 and the right side framework assembly 12 is provided with an L-shaped opening matched with the windshield framework assembly 10, and the adjacent two L-shaped openings are connected (as shown in the figure C). The left side framework assembly 11 and the right side framework assembly 12 are symmetrical structures, and the left side framework assembly 11 includes an A-pillar upright beam 14, a side wall upper frame cross beam 15, a side wall lower frame cross beam 16 and a rear upright beam. The A-pillar upright beam 14 is connected with the side wall upper frame cross beam 15 and the side wall lower frame cross beam 16 between the rear upright beam. The upper part of the A-pillar cross beam is provided with an L-shaped opening matched with the windshield framework assembly 10 (as shown in the figure C).

[0040] As shown in the figure, Figures 12-13 The left side skin 3 and the right side skin 4 respectively reserve a mutual matching adhesive flange at the joint area of the rear skin 5 and the roof skin 6, and the width of the adhesive flange is 20mm. The left side skin 3, the right side skin 4, the rear skin 5 and the roof skin 6 respectively reserve a 3mm glue gap and a 20mm bonding surface at the bonding area of the framework assembly 2. The strength of the reinforced skin cover is improved and the sealing of the cab is better.

[0041] As shown in the figure, Figure 9 And 11 The left side skin 3, the right side skin 4, the rear skin 5 and the roof skin 6 are respectively provided with a pre-buried nut 19, and the left side framework assembly 11, the right side framework assembly 12, the roof framework assembly 13 and the rear framework assembly 9 are respectively provided with a transition bracket 17 matched with the pre-buried nut 19, and the transition bracket 17 is penetrated by a locking bolt 20 matched with the pre-buried nut 19. The transition bracket 17 is integrally bent, one side of the transition bracket 17 is installed on the framework by a rivet 21, and the other side is provided with a slot hole matched with the pre-buried nut 19, so as to adaptively adjust and install the locking bolt 20 and the pre-buried nut 19.

[0042] As shown in the figure, Figure 10 The left side skin 3, the right side skin 4, the rear skin 5 and the roof skin 6 are respectively provided with two pre-buried bolts 18, and the left side framework assembly 11, the right side framework assembly 12, the roof framework assembly 13 and the rear framework assembly 9 are respectively provided with two through holes matched with the two pre-buried bolts 18. One of the two through holes in the same component is a round hole, and the other is a slot hole, so as to accurately locate the pre-installation of the skin on the framework; realize assembly positioning and guiding, improve installation accuracy and reduce work intensity.

[0043] The heavy truck cab body assembly has the advantages of light weight, low cost, strong corrosion resistance and easy processing, the grid structure of the top cover framework assembly optimizes the stress capacity, and the cooperation of the L-shaped opening with the inner side of the surrounding components improves the structural stability of the whole framework assembly, effectively reduces the risk of fracture of the top cover framework assembly and the surrounding components caused by external force collision.

[0044] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be mutually referred to.

[0045] The terms "upper", "lower", "outer side", "inner side" and the like in the specification and claims of the present application and the above-described drawings, if any, are used to distinguish the relative position relationship, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A paint-free heavy-duty truck cab assembly, comprising an aluminum alloy frame assembly (2), wherein the frame assembly (2) is externally provided with a skin assembly, characterized in that, The frame assembly (2) includes a front bulkhead assembly (7), a floor assembly (8), a rear bulkhead frame assembly (9), a windshield frame assembly (10), a left side bulkhead frame assembly (11), a right side bulkhead frame assembly (12), and a roof frame assembly (13). The roof frame assembly (13) has an overall crisscrossing grid structure. The ends of the roof frame assembly (13) are provided with L-shaped notches, which abut against the inner sides of the windshield frame assembly (10), the left side bulkhead frame assembly (11), and the right side bulkhead frame assembly (12), respectively. The lower parts of both ends of the windshield frame assembly (10) are provided with L-shaped notches, which are respectively engaged with the left side bulkhead frame assembly (11) and the right side bulkhead frame assembly (12). Both the frame assembly (11) and the right side frame assembly (12) are provided with L-shaped notches that cooperate with the windshield frame assembly (10); the left side frame assembly (11) and the right side frame assembly (12) are symmetrically structured. The left side frame assembly (11) includes an A-pillar upright beam (14), a side upper frame crossbeam (15), a side lower frame crossbeam (16) and a rear upright beam. The side upper frame crossbeam (15) and the side lower frame crossbeam (16) are connected between the A-pillar upright beam (14) and the rear upright beam; the front frame assembly (7), the floor assembly (8), the rear frame assembly (9), the windshield frame assembly (10), the left side frame assembly (11), the right side frame assembly (12) and the roof frame assembly (13) are welded together; The skin assembly includes a left side panel (3), a right side panel (4), a rear panel (5), and a top panel (6); the left side panel (3) corresponds to the left side frame assembly (11), the right side panel (4) corresponds to the right side frame assembly (12), the rear panel (5) corresponds to the rear frame assembly (9), and the top panel (6) corresponds to the top frame assembly (13); the left side panel (3), right side panel (4), rear panel (5), and top panel (6) are all made of glass fiber reinforced plastic; the left side panel (3) and right side panel (4) have pre-reserved adhesive flanges at the junction areas with the rear panel (5) and top panel (6), respectively. The width of the side is 20mm; the left side panel (3), right side panel (4), rear panel (5) and top cover panel (6) are respectively provided with a 3mm glue gap and a 20mm wide bonding surface in the contact area with the frame assembly (2); a pre-embedded nut (19) is provided on the left side panel (3), right side panel (4), rear panel (5) and top cover panel (6); a transition bracket (17) that matches the pre-embedded nut (19) is installed on the left side frame assembly (11), right side frame assembly (12), top cover frame assembly (13) and rear frame assembly (9); a locking bolt (20) that matches the pre-embedded nut (19) is passed through the transition bracket (17).

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