CN113276965A

CN113276965A - Lightweight platform floor with stronger corrosion resistance

Info

Publication number: CN113276965A
Application number: CN202110638056.XA
Authority: CN
Inventors: 蒋友明; 方琳童
Original assignee: Zhejiang Lujieshun Automobile Manufacturing Co ltd
Current assignee: Zhejiang Lujieshun Automobile Manufacturing Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-08-20

Abstract

The invention relates to a light weight platform floor with stronger corrosion resistance, comprising: the vehicle body side sealing device comprises a bottom plate assembly, a plurality of cross beams arranged at the lower part of the bottom plate assembly and used for supporting, a plurality of reinforcing blocks arranged at the connecting positions of the cross beams and a vehicle body girder, and edge sealing plates respectively arranged at two sides of the bottom plate assembly in the length direction, wherein the bottom plate assembly is formed by connecting a plurality of bent bottom plates in parallel; the bending bottom plate, the cross beam, the reinforcing block and the edge sealing plate are formed by bending plate materials. The lightweight platform floor with the strong corrosion resistance is manufactured by integrally bending, splicing and assembling and welding plates, under the condition that the compressive strength meets the use requirement, the flatness, the lightweight, the corrosion resistance and the applicability of the floor are greatly enhanced, the optimal bending height and the optimal bending width can be selected within a certain range according to the actual use condition of a vehicle, and the lightweight platform floor with the strong corrosion resistance is simpler in manufacturing and processing procedures, smaller in welding deformation and better in performance.

Description

Lightweight platform floor with stronger corrosion resistance

Technical Field

The invention belongs to the technical field of trucks, and particularly relates to a light weight platform floor with strong corrosion resistance.

Background

Conventional freight cars are self-weighing, so that the cargo weight of the freight car is reduced, while the majority of the weight of the car is on the floor. The traditional cargo compartment bottom plate process generally adopts square pipes and channel steel with thicker wall thickness to form a frame through welding, welding a raising block and a straight beam, laying an iron plate on the frame surface, additionally welding reinforcing members and other matched parts, and has the disadvantages of heavy weight, complex process and limited overall height design.

On the other hand, the bottom plate is tiled on a frame formed by combining the square pipes, and the use requirements of strength and flatness are met by depending on enough contact area with the square pipes, so that the square pipes need to be densely arranged, the weight of the bottom plate is not easy to control, a plurality of welding points and large welding workload are provided, but if the span is too large, the bottom plate is easy to dent downwards when local stress is large in use, the bottom plate needs to be replaced if more depressions are provided, and the bottom plate is integrally laid and needs to be integrally replaced, which is extremely uneconomical.

Secondly, the traditional process adopts sections such as square tubes, channel steel and the like to manufacture the bottom plate, and needs to be derusted, and the process has the following disadvantages:

1. no matter how rust removal is carried out, the inner side of the square tube cannot be subjected to rust removal;

2. the interlayer between the structural members cannot be coated for corrosion prevention.

In addition, the wall thickness of the square pipe and the channel steel is much thicker than that of the bottom plate paved on the upper part, the welding performance is influenced by materials with large thickness difference, and the deformation after welding is large.

Disclosure of Invention

Aiming at the problems, the invention provides the light weight carriage bottom plate which is integrally made by bending the plate, has lighter weight and better corrosion resistance and bearing capacity compared with the traditional bottom plate under the same specification.

The purpose of the invention is realized by the following technical scheme: a lightweight floorboard with enhanced corrosion resistance, comprising: the vehicle body side sealing device comprises a bottom plate assembly, a plurality of cross beams arranged at the lower part of the bottom plate assembly and used for supporting, a plurality of reinforcing blocks arranged at the connecting positions of the cross beams and a vehicle body girder, and edge sealing plates respectively arranged at two sides of the bottom plate assembly in the length direction, wherein the bottom plate assembly is formed by connecting a plurality of bent bottom plates in parallel; the bending bottom plate, the cross beam, the reinforcing block and the edge sealing plate are formed by bending plate materials.

The bending bottom plate is as follows: the rectangular bottom plane, two side vertical surfaces which are bent at the same height in a right angle in the length direction of the bottom plane, two symmetrical flanging surfaces which are formed by respectively bending the two side vertical surfaces at a right angle to one side of the gravity center of the plate, and two symmetrical spigot edges which are formed by respectively bending the two flanging surfaces at a right angle to one side of the bottom plane are formed together;

the bottom plate assembly is composed of: a plurality of bent bottom plates are laid in parallel, and the mutual side vertical faces are combined into a whole through welding. The cross member 2 includes: a beam upper plane 21, a vertical plane 22 and a beam lower plane 23; the longitudinal vertical surface 22 has the same chamfer 221 at both ends. The edge sealing plate 4 is: the long strip plate is formed by symmetrically bending a right-angle folded edge towards the same side at two side edges in the length direction; the clear dimension of the interior space is equal to the outer peripheral dimension of the side elevation 112. A sealing plate 222 and a triangular side sealing plate 223 are arranged on the chamfer surface 221; a side reinforcing plate 224 is provided on the opposite surface of the vertical surface 22 at the joint between the cross member 2 and the body side member.

And cross beams are respectively arranged at each joint of the middle vertical surface and the side vertical surface of each bent bottom plate in the bottom plate assembly. The reinforcing blocks are right-angled triangles in shape and are arranged at the connecting positions of each cross beam and the girder of the vehicle body and close to one side of the end part of each cross beam.

Preferably, the light-weight carriage bottom plate with the strong corrosion resistance is manufactured by bending the components by adopting plates, splicing, assembling and welding, compared with the conventional square pipe and channel steel paving flat plate, the light-weight carriage bottom plate with the same specification is light in weight, the bending bottom plate and the beams which form the whole frame do not have intensive steel pipe paving, the manufacturing difficulty and labor intensity are reduced, and the optimal bending height and width can be selected within a certain range according to the actual condition of vehicle use.

Preferably, the light-weight carriage bottom plate with the strong corrosion resistance is manufactured by bending galvanized plates, so that the problems that rust cannot be removed on the inner side of the square pipe and corrosion resistance coating cannot be realized on an interlayer between structural members are solved, and the overall corrosion resistance is improved.

Preferably, the bending bottom plate of the lightweight platform floor with strong corrosion resistance has better flatness and stronger strength after being bent, and the two side vertical surfaces are formed by bending at right angles, so that the side vertical surfaces of the bending bottom plates lean against each other to form a whole body and have strong deformation resistance during subsequent splicing, assembling and welding.

Preferably, the cross beam of the light weight carriage bottom plate with the stronger corrosion resistance is also manufactured by bending a plate, the thickness of the plate is the same as or similar to that of the plate of the bent bottom plate, the welding difficulty is reduced, and the welding performance is enhanced; the two ends are provided with oblique cutting planes to reduce the dead weight.

Preferably, the edge sealing plate of the light weight carriage bottom plate with strong corrosion resistance is also manufactured by bending a plate material, and the thickness of the plate material is selected to be the same as that of the plate material of the bent bottom plate.

Preferably, the lightweight platform floor with strong corrosion resistance is integrally formed by respectively arranging cross beams at the lower parts of the joints of the middle vertical surfaces of the bent floors for supporting the cross beams during splicing, assembling and welding.

Preferably, the light-weight carriage bottom plate with the strong corrosion resistance is provided with the reinforcing blocks with the triangular sections at the joints of the cross beams and the vehicle body girders, so that the overall strength of the bottom plate is improved.

In summary, compared with the prior art, the invention has the following advantages:

the light weight carriage bottom plate with the strong corrosion resistance is manufactured by bending, splicing and assembly welding galvanized plates, under the condition that the compressive strength meets the use requirement, the flatness, the light weight, the corrosion resistance and the applicability of the bottom plate are greatly enhanced, the manufacturing and processing procedures are simpler, the welding deformation is smaller, and the performance is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a schematic structural view of the present invention; note that the edge sealing plate is hidden for easy observation.

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a front view of the present invention;

fig. 7 is a schematic structural view of the cross member.

The labels in the figure are:

1. a base plate assembly; 11. bending the bottom plate; 111. a bottom plane; 112. a side elevation; 113. flanging the surface; 114. a spigot edge; 2. a cross beam; 21. a beam upper plane; 22. a vertical face; 23. a lower plane of the beam; 221. a chamfer plane; 222. closing the plate; 223. a triangular side sealing plate; 224. a side reinforcing plate; 3, reinforcing blocks; 4. and (7) edge sealing plates.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which:

example 1:

as shown in fig. 1 to 7, a lightweight platform floor with high corrosion resistance includes: the automobile body frame comprises a bottom plate assembly 1, a plurality of cross beams 2 arranged on the lower portion of the bottom plate assembly 1 and used for supporting, a plurality of reinforcing blocks 3 arranged at the connecting positions of the cross beams 2 and automobile body girders, and edge sealing plates 4 respectively arranged on two sides of the bottom plate assembly 1 in the length direction, wherein the bottom plate assembly 1 is formed by connecting a plurality of bent bottom plates 11 in parallel; the bending bottom plate 11, the cross beam 2, the reinforcing block 3 and the edge sealing plate 4 are formed by bending plate materials.

The bending bottom plate 11 is: a rectangular bottom plane 111, two side vertical surfaces 112 which are bent at the same height at right angles in the length direction of the bottom plane 111, two symmetrical flanging surfaces 113 formed by respectively bending the two side vertical surfaces 112 at right angles to one side of the center of gravity of the plate, and two symmetrical spigot edges 114 formed by respectively bending the two flanging surfaces 113 at right angles to one side of the bottom plane 111;

the floor panel assembly 1 is composed of: a plurality of bending bottom plates 11 are laid in parallel, wherein the mutual side elevation surfaces 112 are combined into a whole through welding. The cross member 2 includes: a beam upper plane 21, a vertical plane 22 and a beam lower plane 23; the longitudinal vertical surface 22 has the same chamfer 221 at both ends. The edge sealing plate 4 is: the long strip plate is formed by symmetrically bending a right-angle folded edge towards the same side at two side edges in the length direction; the clear dimension of the interior space is equal to the outer peripheral dimension of the side elevation 112. A sealing plate 222 and a triangular side sealing plate 223 are arranged on the chamfer surface 221; a side reinforcing plate 224 is provided on the opposite surface of the vertical surface 22 at the joint between the cross member 2 and the body side member.

The cross beams 2 are respectively arranged at the joints of the side vertical surfaces 112 of the bent bottom plates 11 in the bottom plate assembly 1. The reinforcing blocks 3 are right-angled triangles in shape and are arranged at the connecting part of each cross beam 2 and a beam of the vehicle body and close to one side of the end part of each cross beam 2.

Referring to a 4.2 meter cargo compartment, data analysis contrasts:

the weight of the traditional bottom plate is about 540kg, and the components comprise: the reinforcing structure comprises a floor plate with the thickness of 2.75mm, No. 8 channel steel serving as a crossbeam (the waist thickness of the No. 8 channel steel is 5mm, the thickness of the two sides with slopes is about 7-8 mm), a rectangular steel pipe frame with the thickness of 100 x 50 x 4 on the upper part of the crossbeam, and reinforcing blocks welded among the crossbeams; the overall height was 182.75 mm.

After the process is adopted, the weight of the bottom plate can be reduced to 400kg, and the components are as follows: the structure comprises a bottom plate assembly 1 with the thickness of 2mm, a cross beam 2 with the thickness of 2mm, a reinforcing block 3 with the thickness of 2mm and a sealing plate 4 with the thickness of 2 mm; the overall height was 182 mm.

The connection modes among the bending bottom plates 11 and between the bending bottom plates 11 and the cross beam 2 can adopt bolt connection besides welding, the welding cost is relatively low, and the bolt connection is convenient for subsequent maintenance and replacement; the cover plates 222, the triangular side cover plates 223, and the side reinforcing plates 224 are all manufactured by using the cut-off portions in the manufacturing process of the cross beam 2.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A lightweight floorboard with enhanced corrosion resistance, comprising: the automobile body frame comprises a bottom plate assembly (1), a plurality of cross beams (2) arranged on the lower portion of the bottom plate assembly (1) and used for supporting, a plurality of reinforcing blocks (3) arranged at the connecting positions of the cross beams (2) and automobile body girders, and edge sealing plates (4) respectively arranged on two sides of the bottom plate assembly (1) in the length direction, wherein the bottom plate assembly (1) is formed by connecting a plurality of bending bottom plates (11) in parallel; the bending bottom plate (11), the cross beam (2), the reinforcing block (3) and the edge sealing plate (4) are formed by bending plate materials.

2. The light weight carriage bottom plate with the stronger corrosion resistance performance according to claim 1 is characterized in that the bending bottom plate (11), the cross beam (2), the reinforcing block (3) and the edge sealing plate (4) are all made of galvanized plates.

3. The light weight vehicle floor with high corrosion resistance as recited in claim 1, wherein said bent floor (11) is: the plate comprises a rectangular bottom plane (111), two side vertical surfaces (112) which are bent at the same height at right angles in the length direction of the bottom plane (111), two symmetrical flanging surfaces (113) which are formed by respectively bending the two side vertical surfaces (112) at right angles to one side of the gravity center of the plate, and two symmetrical spigot edges (114) which are formed by respectively bending the two flanging surfaces (113) at right angles to one side of the bottom plane (111), wherein the two symmetrical spigot edges are formed together;

the floor assembly (1) is formed by: a plurality of bending bottom plates (11) are laid in parallel, wherein the mutual side elevation surfaces (112) are combined into a whole through welding.

4. The relatively corrosion resistant lightweight floorboard, as claimed in claim 1, wherein said cross member (2) comprises: a beam upper plane (21), a longitudinal vertical plane (22) and a beam lower plane (23);

the two ends of the vertical surface (22) are provided with the same chamfer surface (221).

5. The light weight vehicle floor with high corrosion resistance of claim 3, wherein the edge sealing plate (4) is: the long strip plate is formed by symmetrically bending a right-angle folded edge towards the same side at two side edges in the length direction; the inner clear dimension of which is equal to the outer peripheral dimension of the side elevation (112).

6. The relatively high corrosion resistance lightweight floorboard, as claimed in claim 4, wherein sealing plates (222) and triangular side sealing plates (223) are provided at the chamfered surface (221); a side reinforcing plate (224) is arranged on the opposite surface of the vertical surface (22) and at the joint of the cross beam (2) and the vehicle body girder.

7. The light weight vehicle floor with high corrosion resistance as recited in claim 6, wherein a cross beam (2) is respectively disposed at each joint of the side elevation (112) of each of the bent floors (11) in the floor assembly (1).

8. The light weight floorboard in accordance with claim 7, wherein the reinforcement (3) is shaped like a right triangle and is provided at the junction of each cross member (2) and the body side member, near the ends of the cross members (2).