Lightweight double-beam basin beam mounting structure

Abstract

The utility model relates to the technical field of heavy-duty car basin beam installation, in particular to a light-weight double-cross-beam basin beam installation structure which comprises double cross beams, each cross beam is provided with a first basin beam and a second basin beam, and the first end of the first basin beam is welded to the first end of a basin beam connecting plate. The first end of the second basin beam is welded to the second end of the basin beam connecting plate, the second end of the first basin beam is connected with the first basin beam support through a bolt, and the second end of the second basin beam is connected with the second basin beam support through a bolt. The basin beam mounting structure is simple to form, light in weight, capable of improving the torsional rigidity of a frame and meeting the strength of all using working conditions of a whole vehicle, and good in forming manufacturability; the basin beam assembly of the structure is completely calculated through strength and fatigue CAE simulation under the whole vehicle working condition, the fault rate is reduced, the generalization degree is improved, and the modularization level is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy-duty vehicle basin beam installation, in particular to a lightweight double-crossbeam basin beam installation structure. Background Art

[0002] The basin beam is an important part of the commercial vehicle frame. The basin beam is located at the transmission position of the vehicle and needs to avoid the transmission. In the past, the basin beam had to be equipped with a leaf spring bracket and reliability had to be ensured. The existing basin beam adopts a stamping molding integral manufacturing process. The basin beam is mounted on the leaf spring bracket and connected to the leaf spring bracket at both ends with bolts. In order to reduce weight, the basin beam has 5 weight-reducing holes with a diameter of Φ80mm. In order to further alleviate the stress concentration generated at the installation of the basin beam and the leaf spring bracket, two 3mm thick pads are installed on the back of the basin beam.

[0003] The existing basin beam adopts an integrated molding (stamping mold) technical solution, and is assembled with a leaf spring bracket through 6 bolts on one side to enhance the torsional rigidity of the frame; the existing basin beam adopts a stamping integral manufacturing process, and the overall size is large (length 877mm, width 233mm), the weight is heavy (15.59kg), and the versatility is poor. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a lightweight double-beam basin beam mounting structure to solve the problems of the existing basin beam technology state of being heavy, high in cost, and poor in versatility and interchangeability.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a lightweight double-beam basin beam installation structure, including double beams, each beam is provided with a first basin beam and a second basin beam, the first end of the first basin beam is welded to the first end of the basin beam connecting plate, the first end of the second basin beam is welded to the second end of the basin beam connecting plate, the second end of the first basin beam is connected to the first basin beam bracket by bolts, and the second end of the second basin beam is connected to the second basin beam bracket by bolts.

[0006] Preferably, rectangular plug welding holes are provided on both sides of the top of the basin beam connecting plate, a U-shaped groove is provided at the bottom of the basin beam connecting plate, and both ends of the U-shaped groove are connected to the first basin beam and the second basin beam by ring welding.

[0007] Preferably, the bottoms of the first basin beam and the second basin beam are provided with chamfers so that the first basin beam and the second basin beam are seamlessly connected with the basin beam connecting plate.

[0008] Preferably, rectangular through holes are provided on the tops of the first basin beam and the second basin beam, so that the first basin beam and the second basin beam are seamlessly connected with the basin beam connecting plate.

[0009] Preferably, the first basin beam and the second basin beam have an outer shape of an arc surface.

[0010] The utility model has the following beneficial effects:

[0011] 1) The basin beam installation structure is simple to form, light in weight, can improve the torsional stiffness of the frame and meet the strength of various working conditions of the vehicle, and has good forming processability;

[0012] 2) The structural basin beam assembly has completely passed the strength and fatigue CAE simulation calculation under the vehicle working conditions, which reduces the failure rate, improves the degree of commonality and modularization;

[0013] 3) The lightweight double-beam basin beam installation structure reduces weight by 5.6kg and reduces costs by 34 yuan per vehicle compared to existing beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram (I) of the utility model.

[0015] Figure 2 It is a structural schematic diagram (II) of the present utility model.

[0016] In the figure: 1-first basin beam; 2-second basin beam; 3-basin beam connecting plate, 31-rectangular plug welding hole, 32-U-shaped groove; 4-first basin beam bracket; 5-second basin beam bracket. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-2 As shown, a lightweight double-beam basin beam mounting structure includes double beams, each beam is provided with a first basin beam 1 and a second basin beam 2, the first end of the first basin beam 1 is welded to the first end of the basin beam connecting plate 3, the first end of the second basin beam 2 is welded to the second end of the basin beam connecting plate 3, the second end of the first basin beam 1 is connected to the first basin beam bracket 4 by bolts, the second end of the second basin beam 2 is connected to the second basin beam bracket 5 by bolts, and the connecting surfaces between adjacent structures are consistent with each other.

[0019] Rectangular plug welding holes 31 are provided on both sides of the top of the basin beam connecting plate 3, and a U-shaped groove 32 is provided at the bottom of the basin beam connecting plate 3. Both ends of the U-shaped groove 32 are connected to the first basin beam 1 and the second basin beam 2 by ring welding.

[0020] The bottoms of the first basin beam 1 and the second basin beam 2 are chamfered so that the first basin beam 1 and the second basin beam 2 are seamlessly connected with the basin beam connecting plate 3 .

[0021] Rectangular through holes are provided on the tops of the first basin beam 1 and the second basin beam 2 so that the first basin beam 1 and the second basin beam 2 are seamlessly connected with the basin beam connecting plate 3; both ends of the first basin beam 1 and the second basin beam 2 are provided with end caps for installation in conjunction with the leaf spring bracket, and both sides of the end caps have processed surfaces for facilitating the installation of the first basin beam bracket 4 and the second basin beam bracket 5 and the installation of the back nuts.

[0022] The first basin beam 1 and the second basin beam 2 have an arc shape to ensure that there is enough clearance between the basin beam and the inner side of the frame.

[0023] The lightweight double-beam basin beam mounting structure is a double-beam structure, and the two beams are independent of each other and can be universally interchangeable.

[0024] The utility model solves the problem that the basin beam installation structure of commercial vehicles is bulky and inconvenient to install, maintain and disassemble. The basin beam installation structure is simple to form and light in weight, can improve the torsional rigidity of the frame and meet the strength of various working conditions of the whole vehicle, and has good forming processability.

[0025] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0026] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A lightweight double-beam basin beam mounting structure, characterized in that: It comprises double cross beams, each cross beam is provided with a first basin beam and a second basin beam, the first end of the first basin beam is welded to the first end of the basin beam connecting plate, the first end of the second basin beam is welded to the second end of the basin beam connecting plate, the second end of the first basin beam is connected to the first basin beam bracket by bolts, and the second end of the second basin beam is connected to the second basin beam bracket by bolts.

2. The lightweight double-beam basin beam mounting structure according to claim 1, characterized in that: Rectangular plug welding holes are provided on both sides of the top of the basin beam connecting plate, and a U-shaped groove is provided at the bottom of the basin beam connecting plate. Both ends of the U-shaped groove are connected to the first basin beam and the second basin beam by ring welding.

3. The lightweight double-beam basin beam mounting structure according to claim 1, characterized in that: The bottoms of the first basin beam and the second basin beam are chamfered so that the first basin beam and the second basin beam are seamlessly connected with the basin beam connecting plate.

4. The lightweight double-beam basin beam mounting structure according to claim 1, characterized in that: Rectangular through holes are provided on the tops of the first basin beam and the second basin beam, so that the first basin beam and the second basin beam are seamlessly connected with the basin beam connecting plate.

5. The lightweight double cross beam basin beam mounting structure according to claim 3, characterized in that: The first basin beam and the second basin beam have an outer shape of an arc surface.

Images