CN210912157U - Connecting structure of lightweight carriage bottom plate and protective steel plate - Google Patents
Connecting structure of lightweight carriage bottom plate and protective steel plate Download PDFInfo
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- CN210912157U CN210912157U CN201921140811.6U CN201921140811U CN210912157U CN 210912157 U CN210912157 U CN 210912157U CN 201921140811 U CN201921140811 U CN 201921140811U CN 210912157 U CN210912157 U CN 210912157U
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Abstract
The utility model discloses a connection structure of lightweight platform floor and protection steel sheet, include aluminium system platform floor and be located the protection steel sheet of platform floor top, the left and right sides of platform floor is provided with the bottom plate boundary beam respectively, both sides be formed with the mounting groove that is the font of falling T on the bottom plate boundary beam respectively, the mounting groove sets up along the length direction in carriage the mounting groove inside callipers is equipped with T font steel connecting piece, steel connecting piece's horizontal part card is located in the mounting groove, steel connecting piece's vertical part sets up, and the upper end protrusion in the upside edge of mounting groove, the both sides edge of protection steel sheet contacts with the inside wall of two steel connecting pieces respectively, the protection steel sheet with welded fastening between the steel connecting piece. The remarkable effects are as follows: the composite use of different materials is realized, the weakening of the base metal during welding is effectively avoided, and the overall strength of the carriage bottom plate is improved.
Description
Technical Field
The utility model relates to lightweight carriage production technical field, concretely relates to lightweight platform floor and protection steel sheet's connection structure.
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. In traditional technology, the lightweight in carriage adopts the aluminum alloy to realize usually, in order to avoid the direct impact to the relatively poor aluminum alloy bottom plate of anti deformability of goods, need to set up the protection steel sheet, nevertheless can not direct welded fastening between steel sheet and the aluminum product, therefore how to realize being connected between steel sheet and the aluminium alloy bottom plate becomes a difficult problem in the puzzlement industry. Meanwhile, heat is generated in the welding process, and the heat can cause the loss of the strength of the base metal, so that the integral strength of the carriage bottom plate is strong.
Disclosure of Invention
The utility model aims at providing a connection structure of lightweight platform floor and protection steel sheet utilizes the mounting groove in addition T font steel part, has realized the combined use between the different material materials, to the weakening of mother metal intensity when can avoiding welding moreover, effectively guarantees platform floor's bulk strength.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a connection structure of lightweight platform floor and protection steel sheet which the key lies in: including aluminium system platform floor and be located the protection steel sheet of platform floor top, the left and right sides of platform floor is provided with the bottom plate boundary beam respectively, both sides be formed with the mounting groove that is the font of falling T on the bottom plate boundary beam respectively, the mounting groove sets up along the length direction in carriage the mounting groove inside callipers is equipped with T font steel connecting piece, the horizontal part card of steel connecting piece is located in the mounting groove, the vertical part of steel connecting piece sets up, and the upper end protrusion in the upside edge of mounting groove, the both sides edge of protection steel sheet contacts with the inside wall of two steel connecting pieces respectively, the protection steel sheet with welded fastening between the steel connecting piece.
Further, the mounting groove is formed on one side of the bottom plate side beam, which is far away from the interior of the carriage.
Furthermore, one side of the bottom plate boundary beam, which is close to the carriage, is provided with a supporting step, one side of the bottom plate boundary beam, which is far away from the carriage, is provided with a limiting bulge, and the mounting groove is positioned between the supporting step and the limiting bulge.
Furthermore, the bottom plate boundary beam and the mounting groove are integrally extruded and formed.
Furthermore, the platform floor further comprises a first floor body and a second floor body which are supported on the floor edge beam, the bottom of the first floor body is integrally formed with a reinforcing beam, a plurality of second floor bodies are clamped between every two adjacent first floor bodies, and the first floor bodies and the second floor bodies and the two adjacent second floor bodies are fixedly connected through friction welding.
Further, the first bottom plate body and the reinforcing beam are in a T-shaped structure in cross section, wherein the first bottom plate body forms a transverse part of the T-shaped structure, and the reinforcing beam forms a vertical part of the T-shaped structure.
The utility model discloses a show the effect and be: the T-shaped mounting groove is matched with the T-shaped steel connecting piece on the side beam of the bottom plate, so that the fixed connection between the protective steel plate at the bottom of the carriage and the aluminum carriage bottom plate is realized, the composite use of different materials is realized, and the problem that different materials cannot be directly welded and fixed in the prior art is solved; meanwhile, a reinforcing structure formed by extrusion and integration of the base plate is adopted, weakening of base metal during welding is effectively avoided, and the overall strength of the carriage bottom plate is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged partial schematic view of A of FIG. 1;
FIG. 3 is a schematic view of the structure of the bed;
fig. 4 is a partially enlarged schematic view of B in fig. 3.
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 and 2, a connecting structure of a lightweight platform floor and a protective steel plate comprises an aluminum platform floor 1 and a protective steel plate 2 located above the platform floor 1, wherein the left side and the right side of the platform floor 1 are respectively provided with a floor side beam 3, the floor side beams 3 on the two sides are respectively provided with an inverted T-shaped mounting groove 4, the mounting groove 4 is formed on one side of the floor side beam 3 away from the interior of the platform, so that the protective steel plate 2 covers the platform floor 1 as far as possible, the mounting groove 4 is arranged along the length direction of the platform, a T-shaped steel connecting piece 5 is clamped in the mounting groove 4, the transverse part of the steel connecting piece 5 is clamped in the mounting groove 4, the vertical part of the steel connecting piece 5 is arranged upwards, the upper end of the steel connecting piece protrudes out of the upper side edge of the mounting groove 4, the two side edges of the protective steel plate 2 are respectively contacted with the inner side, the protection steel plate 2 and the steel connecting piece 5 are welded and fixed.
As can also be seen from fig. 2, the side of the floor side rail 3 close to the vehicle compartment is formed with a supporting step 3a, and the supporting step 3a is used for supporting a first floor body 6 and a second floor body 7; a limiting bulge 3b is formed on one side of the carriage far away from the bottom plate side beam 3, and the limiting bulge 3b is used for being clamped with a carriage plate to realize the closed connection of the carriage side plate and the carriage bottom plate 1; the mounting groove 4 is positioned between the supporting step 3a and the limiting protrusion 3 b.
In this example, the floor frame 3 and the mounting groove 4 are integrally formed by extrusion.
With respect to the floor panel 1:
referring to fig. 3 and 4, the platform floor 1 further includes a first floor body 6 and a second floor body 7 supported on the floor edge beam 3, a reinforcing beam 8 is integrally formed at the bottom of the first floor body 6, a plurality of second floor bodies 7 are clamped between two adjacent first floor bodies 6, the first floor body 6 and the second floor bodies 7 and the two adjacent second floor bodies 7 are fixedly connected by friction welding, specifically, the cross sections of the first floor body 6 and the reinforcing beam 8 are in a T-shaped structure, wherein the first floor body 6 forms a transverse portion of the T-shaped structure, and the reinforcing beam 8 forms a vertical portion of the T-shaped structure.
It is understood that in other embodiments, the second floor bodies 7 disposed between the first floor bodies 6 may be any number between 0 and N, that is, if the load capacity of the car is large, the reinforcing beams 8 are disposed more densely, the car floor 1 may be formed by sequentially splicing the first floor bodies 6, and if the load capacity is small, the disposition distance between the reinforcing beams 8 is increased, so that the second floor bodies 7 are unnecessary components.
In the prior art, the stiffening beam 8 and the platform floor 1 are welded, the stiffening beam 8 and the platform floor 1 are integrally extruded and formed, so that the weakening of base metal after welding is avoided, and meanwhile, the production mode of integrally extruded and formed is adopted, so that the process steps are reduced, and the production cost is reduced.
Because the anti deformation ability of double-deck aluminum plate structure is greater than the single-deck steel sheet under using equal volume raw and other materials, consequently in this example first bottom plate body 6 all adopts double-deck aluminum plate structure with second bottom plate body 7 to strengthen the anti deformation ability of platform floor 1.
As is well known, the steel material and the aluminum material cannot be fixedly connected in a welding mode, so that the connection and fixation of different materials between the steel plate and the aluminum plate are realized through the connecting structure, the composite use of the different materials is realized, and a foundation is laid for realizing the light weight and the high strength of the carriage.
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 (6)
1. The utility model provides a connection structure of lightweight platform floor and protection steel sheet, includes aluminium system platform floor and is located the protection steel sheet of platform floor top, its characterized in that: the left and right sides of platform floor is provided with the bottom plate boundary beam respectively, both sides be formed with the mounting groove that is the font of falling T on the bottom plate boundary beam respectively, the mounting groove sets up along the length direction in carriage the mounting groove inside callipers is equipped with T font steel connecting piece, the horizontal part card of steel connecting piece is located in the mounting groove, the vertical part of steel connecting piece sets up, and upper end protrusion in the upside edge of mounting groove, the both sides edge of protection steel sheet contacts with the inside wall of two steel connecting pieces respectively, the protection steel sheet with welded fastening between the steel connecting piece.
2. The connecting structure of a lightweight under floor and a armor plate according to claim 1, wherein: the mounting groove is formed on one side of the bottom plate edge beam far away from the interior of the carriage.
3. The connecting structure of a lightweight under floor and a armor plate according to claim 2, wherein: the side of the bottom plate boundary beam close to the carriage is provided with a supporting step, one side of the carriage far away from the bottom plate boundary beam is provided with a limiting bulge, and the mounting groove is located between the supporting step and the limiting bulge.
4. The connecting structure of a lightweight under floor and a armor plate according to claim 1, wherein: the bottom plate boundary beam and the mounting groove are integrally extruded and formed.
5. The connecting structure of a lightweight under floor and a armor plate according to claim 1, wherein: the platform floor further comprises a first floor body and a second floor body which are supported on the side beams of the floor, the bottom of the first floor body is integrally formed with a reinforcing beam, a plurality of second floor bodies are clamped between every two adjacent first floor bodies, and the first floor bodies and the second floor bodies and the two adjacent second floor bodies are fixedly connected through friction welding.
6. The connecting structure of a lightweight under floor and a armor plate according to claim 5, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140811.6U CN210912157U (en) | 2019-07-19 | 2019-07-19 | Connecting structure of lightweight carriage bottom plate and protective steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140811.6U CN210912157U (en) | 2019-07-19 | 2019-07-19 | Connecting structure of lightweight carriage bottom plate and protective steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210912157U true CN210912157U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921140811.6U Active CN210912157U (en) | 2019-07-19 | 2019-07-19 | Connecting structure of lightweight carriage bottom plate and protective steel plate |
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| Country | Link |
|---|---|
| CN (1) | CN210912157U (en) |
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2019
- 2019-07-19 CN CN201921140811.6U patent/CN210912157U/en active Active
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