CN202686491U - Heavy vehicle high-strength single layer vehicle frame assembly - Google Patents

Abstract

The utility model specifically discloses a high-strength single-layer frame assembly for a heavy-duty vehicle. The frame assembly includes a single-layer longitudinal beam, a cross beam and a reinforcing plate. The whole frame assembly is a wide front and narrow rear structure. The hole position of the longitudinal beam of the vehicle frame adopts standard hole spacing design, the front end of the vehicle frame assembly is equipped with an integral front suspension composite bracket and a beam, and the vehicle frame assembly adopts a large-span beam connecting plate and local reinforcement Structure, the upper part of the frame assembly is equipped with an "L"-shaped large-span reinforcement plate, and the tail of the frame assembly adopts an integral tail beam. The beneficial effect of the utility model is: it has the advantages of high strength, light weight, good versatility, etc., and the weight is reduced by about 150kg compared with the double-layer vehicle frame under the condition of ensuring the bearing capacity.

Description

High-strength single-layer frame assembly for heavy-duty vehicles

technical field

The utility model relates to a heavy-duty vehicle frame assembly, which belongs to the technical field of key components of the vehicle.

Background technique

The weight of the heavy-duty vehicle frame accounts for about 10% of the curb weight of the vehicle. The development of a lightweight frame is of great significance for reducing the curb weight of the vehicle. The current heavy-duty vehicle frame longitudinal beams are mostly composed of two layers of channel steel plates. Even if there is a single-layer frame, the frame reinforcement beam is only canceled, and the frame strength cannot be guaranteed.

Contents of the invention

The technical problem to be solved by the utility model is to provide a high-strength single-layer frame assembly for a heavy-duty vehicle, which meets the design requirements of a lightweight high-performance tractor.

The utility model adopts the following technical solutions:

A high-strength single-layer frame assembly for a heavy-duty vehicle. The frame assembly includes a single-layer longitudinal beam, a beam and a reinforcing plate. The overall structure of the frame assembly is a wide front and narrow rear structure. The frame The longitudinal beam holes are designed with standard hole spacing, the upper part of the frame assembly is equipped with an "L"-shaped large-span reinforcement plate, and the tail of the frame assembly is an integral tail beam.

The frame longitudinal beam is made of high-strength steel with a tensile strength of 850MPa and a yield limit of 700MPa.

The front end of the vehicle frame assembly is equipped with an integral front suspension combination bracket and a beam.

The frame assembly adopts the standard hole spacing design for the frame longitudinal beam holes, which is conducive to the modular arrangement of each assembly.

The frame assembly adopts the front end of the frame longitudinal beam to install an integral front suspension composite bracket and cross beam, which greatly improves the rigidity of the front part of the frame, and at the same time improves the reliability of the engine mount and cab mount.

The frame assembly adopts a large-span beam connecting plate and a local reinforcement structure, which saves material and distributes stress more evenly.

The frame assembly adopts an integral tail beam, which is simple and reliable.

The upper part of the frame assembly is equipped with an "L"-shaped large-span reinforcement plate, which effectively improves the bending strength of the frame.

The beneficial effect of the utility model is that it has the advantages of high strength, light weight, good versatility, etc., and the weight is reduced by about 150kg compared with the double-layer vehicle frame under the condition of ensuring the bearing capacity.

Description of drawings

Fig. 1 is a schematic diagram of a heavy-duty vehicle high-strength single-layer frame assembly;

Fig. 2 is a schematic diagram of a large-span beam assembly;

Among them, 1. Integral front suspension combined bracket 2. Front beam 3. Frame longitudinal beam 4. First beam assembly 5. Second beam assembly 6. Reinforcement plate 7. Casting beam assembly 8. Integral tail beam 9. Beam body 10. Beam connecting plate.

Detailed ways

As shown in Figure 1 and Figure 2, the high-strength single-layer frame assembly of heavy-duty vehicles includes: integral front suspension composite bracket 1, front end beam 2, frame longitudinal beam 3, first beam assembly 4, and second beam assembly 5 , Reinforcing plate 6, casting beam assembly 7, integral tail beam 8, beam body 9, beam connecting plate 10.

As shown in Figure 1, there are two frame longitudinal beams 3, which are groove-shaped and symmetrical in structure. The left and right longitudinal beams are connected by cross beams. The bending process makes the frame assembly present a shape with a wide front and a narrow rear. The integral front suspension combined bracket 1 and the front cross beam 2 are fixed to the front of the frame longitudinal beam by bolts. Hanging lug bracket, cab tilt shaft bracket, intercooler water tank bracket, front towing hook seat and front bumper bracket are integrated. The first beam assembly 4, the second beam assembly 5, and the cast beam assembly 7 all have large-span beam connecting plates, which are respectively fixed between the left and right longitudinal beams by rivets and bolts to enhance the torsional strength of the vehicle frame. The connecting plate of the second beam assembly 5 and the connecting plate of the casting beam assembly 7 are overlapped, which plays a role of local reinforcement. The cross-section of the large-span reinforcing plate 6 is "L"-shaped, and is connected to the rear upper part of the vehicle frame by rivets and bolts. There are two crossbeams in the middle of the left and right reinforcing plates. The large-span reinforcing plate 6 plays a role in improving the bending strength of the vehicle frame. The integral tail beam 8 is formed by bending only one steel plate, and is fixed to the rear of the vehicle frame by bolts. The longitudinal spacing of the middle and rear holes of the frame longitudinal beam adopts the standard hole spacing design, and the hole spacing is 50mm or its multiples.

Fig. 2 is an enlarged schematic diagram of the second crossbeam assembly 5, the second crossbeam assembly 5 is mainly composed of a crossbeam body 9 and a total of four crossbeam connecting plates 10 similar in shape, the crossbeam connecting plates 10 have a large span, which makes the stress distribution of the vehicle frame more accurate uniform.

Claims (3)

1. A high-strength single-layer vehicle frame assembly for a heavy-duty vehicle, said vehicle frame assembly comprising a single-layer longitudinal beam, a crossbeam and a reinforcing plate, and the overall structure of the vehicle frame assembly is a wide front and narrow rear structure, characterized in that : the hole position of the single-layer frame longitudinal beam adopts the standard hole pitch design, the described vehicle frame assembly adopts a large-span beam connecting plate and a local reinforcement structure, and the upper part of the described vehicle frame assembly is installed with "L" shape A large-span reinforcing plate, and the tail of the vehicle frame assembly adopts an integral tail beam. 2. The heavy-duty vehicle high-strength single-layer frame assembly as claimed in claim 1, wherein the frame longitudinal beam is made of high-strength steel with a tensile strength of 850 MPa and a yield limit of 700 MPa. 3. The heavy-duty vehicle high-strength single-layer frame assembly according to claim 1, characterized in that: the front end of the frame assembly is equipped with an integral front suspension composite bracket and a beam.

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