CN210617954U

CN210617954U - Platform floor structure with integral stiffening beam

Info

Publication number: CN210617954U
Application number: CN201921139995.4U
Authority: CN
Inventors: 何峰; 陈世远
Original assignee: Chongqing Aluminum Age Technology Co ltd
Current assignee: Chongqing Aluminum Age Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-26
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a platform floor structure with integral type stiffening beam, bottom plate crossbeam, bottom plate longeron including cross connection the top of bottom plate crossbeam and bottom plate longeron is provided with first bottom plate body and second bottom plate body the bottom of first bottom plate body adopts the integrative extrusion of aluminum alloy material to have the stiffening beam, this stiffening beam with bottom plate crossbeam parallel arrangement is adjacent two set up a plurality ofly between the first bottom plate body the second bottom plate body, all adopt the friction welding fixed connection between first bottom plate body and the second bottom plate body and between two adjacent second bottom plate bodies. The remarkable effects are as follows: the cross beam and the bottom plate are integrally extruded and formed, so that the base metal is prevented from being weakened during welding, and the overall strength of the carriage bottom plate is improved; meanwhile, a double-layer aluminum plate structure is adopted, and the deformation resistance of the carriage bottom plate is improved under the condition of using raw materials with the same volume.

Description

Platform floor structure with integral stiffening beam

Technical Field

The utility model relates to lightweight carriage technical field, concretely relates to platform floor structure with integral type stiffening beam.

Background

The traditional self-discharging carriage body has two main flow structures: the rectangular carriage and the U-shaped carriage are basically the same in structure and are formed by welding or hinging a front carriage plate, a rear carriage plate, a pair of symmetrical side carriage plates and a carriage bottom plate.

At present, light weight is the mainstream of the development of a self-discharging carriage, and increasing rigidity is an effective way for meeting the geometric dimension of a carriage body, and especially, the structural strength needs to be ensured for a bottom plate which often bears the impact of goods. However, in the traditional process, the stiffening beam on the platform floor and the floor are directly welded, but heat is generated in the welding process, the strength of the base metal is lost, and the integral strength of the platform floor is poor.

Disclosure of Invention

The utility model aims at providing a not enough to prior art, the utility model aims at providing a platform floor structure with integral type stiffening beam through with bottom plate and the integrative double-deck aluminum plate structure of extruding of stiffening beam, can not only avoid the weakening to base metal intensity when welding, can improve platform floor's anti deformability moreover.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a platform floor structure with integral type stiffening beam, its key lies in: the bottom plate comprises a bottom plate cross beam and a bottom plate longitudinal beam which are connected in a cross mode, wherein a first bottom plate body and a second bottom plate body are arranged above the bottom plate cross beam and the bottom plate longitudinal beam, the bottom of the first bottom plate body is made of aluminum alloy materials in an integrated extrusion forming mode to form a reinforcing beam, the reinforcing beam and the bottom plate cross beam are arranged in parallel, a plurality of second bottom plate bodies are arranged between every two adjacent first bottom plate bodies, and friction welding fixing connection is adopted between the first bottom plate bodies and the second bottom plate bodies and between every two adjacent second bottom plate bodies.

Further, the cross sections of the first bottom plate body and the bottom plate cross beam are in a T-shaped structure, wherein the first bottom plate body forms the transverse part of the T-shaped structure, and the reinforcing beam forms the vertical part of the T-shaped structure.

Furthermore, the first bottom plate body and the second bottom plate body are of double-layer aluminum plate structures, and supporting walls are formed between the double-layer aluminum plates. Because under using equal volume raw and other materials, the ability of the anti deformation of double-deck aluminum plate structure is greater than the individual layer steel sheet, consequently adopts the cooperation of foretell double-deck aluminum plate structure and support arm for the anti deformability of platform floor promotes by a wide margin.

Furthermore, the first bottom plate body and the second bottom plate body both adopt a multi-cavity structure. The multi-cavity structure further improves the deformation resistance of the carriage bottom plate.

Furthermore, the bottom plate cross beam and the bottom plate longitudinal beam both adopt a multi-cavity structure.

The utility model discloses a show the effect and be: compared with the traditional mode of welding the stiffening beam and the bottom plate, the scheme adopts the integral extrusion forming of the stiffening beam and the bottom plate, thus avoiding weakening the base metal during welding and improving the integral strength of the carriage bottom plate; meanwhile, a double-layer aluminum plate structure is adopted, and the deformation resistance of the carriage bottom plate is improved under the condition of using raw materials with the same volume.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged partial schematic view of A in FIG. 2;

FIG. 4 is a schematic view showing a state where the reinforcing beam is connected to the floor side member;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a schematic view of the structure of the floor beam at the gap;

fig. 7 is a schematic cross-sectional view of the reinforcing beam.

Detailed Description

The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 7, a platform floor structure with an integrated reinforcing beam comprises a frame structure composed of a floor longitudinal beam 2 and a floor cross beam 1, wherein the floor longitudinal beam 2 is arranged along the length direction of a platform, a first floor body 3 and a second floor body 4 are laid on the rectangular frame structure, the bottom of the first floor body 3 is made of an aluminum alloy material and integrally extruded to form the reinforcing beam 5, the reinforcing beam 5 and the floor cross beam 1 are arranged in parallel, the first floor body 3 and the reinforcing beam 5 are in a T-shaped structure, a plurality of second floor bodies 4 are arranged between two adjacent first floor bodies 3, and the first floor bodies 3 and the second floor bodies 4 and the two adjacent second floor bodies 4 are fixedly connected by friction welding. It can be understood that, in other embodiments, the second floor bodies 4 disposed between the first floor bodies 3 may be any number between 0 and N, that is, if the load capacity of the car is large, the floor cross members 1 are disposed more densely, the floor of the car may be formed by sequentially splicing the first floor bodies 3, and if the load capacity is small, the disposition distance of the reinforcement beams 5 is increased, so that the second floor bodies 4 are unnecessary components.

In the prior art, the stiffening beam 5 is welded with the carriage bottom plate, the stiffening beam 5 and the carriage bottom plate are integrally extruded, so that the weakening of base metal after welding is avoided, and meanwhile, an integrally extrusion forming production mode is adopted, so that the process steps are reduced, and the production cost is reduced.

Because under using equal volume raw and other materials, the ability of the anti deformation of double-deck aluminum plate structure is greater than the individual layer steel sheet, consequently in this example first bottom plate body 3 all adopts double-deck aluminum plate structure with second bottom plate body 4, is formed with the support wall between double-deck aluminum plate, thereby bottom plate crossbeam 1, bottom plate longeron 2 first bottom plate body 3 all adopts the many cavitys structure with second bottom plate body 4, and then has strengthened the anti deformation ability of platform floor.

In addition, regarding the reinforcing beam 5:

the stiffening beam 5 is formed by extrusion of aluminum alloy, and the stiffening beam 5 is of a multi-cavity structure so as to enhance the deformation resistance. The reinforcing beam 5 is provided with a notch 6 with a size corresponding to that of the floor longitudinal beam 2.

With respect to the floor stringer 2:

two sides of the lower part of the bottom plate longitudinal beam 2 extend outwards respectively to form flanges 7; the bottom plate longitudinal beam 2 and the flange 7 are integrally formed by extrusion of aluminum alloy, and the bottom plate longitudinal beam 2 is of a multi-cavity structure so as to enhance the deformation resistance. Offer on the flange 7 with the groove 8 of stepping down that 6 transverse part of breach suits, work as the bottom plate longeron 2 card is located in the breach 6, the inner wall of the groove 8 of stepping down with 6 transverse part's of breach inner wall contacts.

Furthermore, the floor longitudinal beam 2 has four cavities, the height of the cavities on two sides of the upper side is greater than that of the cavities on two sides of the lower side, and the separation of the cavities on the upper side and the lower side is adapted to the forming position of the flange 7.

As for the connection between the floor side member 2 and the reinforcing member 5, as shown in fig. 4 to 7:

the notch 6 is in an inverted T shape, the longitudinal part of the notch 6 is matched with the bottom plate longitudinal beam 2 above the flange 7, the bottom plate longitudinal beam 2 below the flange 7 protrudes out of the reinforcing beam 5, the transverse part of the notch 6 is supported on the flange 7, and when the bottom plate longitudinal beam 2 is clamped in the notch 6 formed in the reinforcing beam 5, the lower surface of the reinforcing beam 5 is flush with the lower surface of the flange 7, so that the requirement of large plane required by friction welding is met. Therefore, the lower surface of the reinforcing beam 5 and the lower surface of the flange 7 are fixedly connected in a friction welding mode, and the reinforcing beam 5 and the rest of the joint of the floor longitudinal beam 2 are fixedly connected in an argon arc welding mode at the position where the reinforcing beam cannot be connected in the friction welding mode.

Adopt argon arc welding between traditional floor longitudinal 2 and the stiffening beam 5, the not enough department of intensity adds the triangle piece reinforcement, and the construction process is complicated, and the welding is heated can change material strength, and joint strength is limited, and adopts integrative floor longitudinal 2 and the stiffening beam 5 that adds extruded flanged 7 to carry out the structure joint to increase the overall strength that friction weld part made the platform floor and obtained the reinforcing.

It is understood that the connection mode of the reinforcing beam 5 and the floor longitudinal beam 2 in the present embodiment is not limited to the floor of the vehicle, and other frame type connection structures such as those requiring a cross beam and a longitudinal beam can be adopted.

The technical scheme provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a platform floor structure with integral type stiffening beam, includes cross connection's bottom plate crossbeam, floor longitudinal, its characterized in that: the first bottom plate body and the second bottom plate body are arranged above the bottom plate cross beam and the bottom plate longitudinal beam, the bottom of the first bottom plate body is made of aluminum alloy materials in an integrated extrusion forming mode to form a reinforcing beam, the reinforcing beam and the bottom plate cross beam are arranged in parallel, a plurality of second bottom plate bodies are arranged between every two adjacent first bottom plate bodies, and the first bottom plate bodies and the second bottom plate bodies and the adjacent two second bottom plate bodies are fixedly connected through friction welding.

2. The decklid structure with integrated reinforcement beam of claim 1, wherein: the first bottom plate body and the cross section of the reinforcing beam are in a T-shaped structure, wherein the first bottom plate body forms the transverse part of the T-shaped structure, and the reinforcing beam forms the vertical part of the T-shaped structure.

3. The decklid structure with integrated reinforcement beam of claim 1, wherein: the first bottom plate body and the second bottom plate body are both of double-layer aluminum plate structures, and a supporting wall is formed between the double-layer aluminum plates.

4. The floor structure with an integrated reinforcing beam according to any one of claims 1 to 3, wherein: the first bottom plate body and the second bottom plate body are both of a multi-cavity structure.

5. The floor structure with an integrated reinforcing beam according to any one of claims 1 to 3, wherein: the bottom plate cross beam and the bottom plate longitudinal beam both adopt a multi-cavity structure.