CN203199030U - Heavy lorry frame - Google Patents

Abstract

The utility model discloses a frame of a heavy-duty truck, which relates to the technical field of automobile manufacture and comprises a left longitudinal beam, a right longitudinal beam, a front beam, a middle beam, a balanced suspension beam and a tail beam; the left longitudinal beam and the The connection of the middle crossbeam and the balanced suspension crossbeam are all connected through the connection plate; the connection of the right longitudinal beam and the described middle crossbeam and the balance suspension crossbeam are all connected through the connection plate; the left longitudinal beam is connected with the front crossbeam and the The connections of the tail cross beam are all connected by fasteners, and the connections of the right longitudinal beam and the front cross beam and the tail cross beam are all connected by fasteners. The front width of the heavy-duty truck frame is D, where D=940 mm, and the rear width is d, where d=810 mm. The utility model can solve the problem of poor fuel economy of the whole vehicle due to the large overall mass of the vehicle frame.

Description

Heavy Duty Truck Frame

technical field

The utility model relates to the technical field of automobile manufacturing, in particular to a vehicle frame for heavy-duty trucks.

Background technique

The car frame is the basic component of the car chassis and the car. The traditional car frame, especially the heavy-duty car frame, generally adopts a non-load-bearing body structure, that is, the left and right longitudinal beams and several beams are riveted or welded to form a load-bearing chassis. , to connect the engine and the main assemblies into a whole. This kind of frame is generally rectangular or trapezoidal, and it is arranged at the bottom of the body. The base part and the main force-bearing parts are the carriers connecting other assemblies and components. During use, they not only bear various device loads, but also bear various loads from inside and outside the vehicle, as well as complex impact loads caused by road bumps . The heavy-duty vehicle frame in the prior art is mainly composed of two longitudinal beams and several cross beams. The bending strength and torsional strength are mainly considered during design. The bending moment is mainly borne by the longitudinal beams, and the torsional moment is mainly borne by the longitudinal beams and cross beams. In the prior art, in order to ensure the bending strength and torsional strength of the vehicle frame of the heavy-duty vehicle, the overall vehicle frame is made larger, resulting in poor fuel economy of the whole vehicle due to its large mass.

Utility model content

The technical problem to be solved by the utility model is to provide a heavy-duty truck frame, which can solve the problem of poor fuel economy of the whole vehicle due to the large overall mass of the vehicle frame.

In order to solve the above problems, the technical solution of the utility model is: this heavy-duty truck frame includes a left longitudinal beam, a right longitudinal beam, a front beam, a middle beam, a balanced suspension beam and a tail beam; The connection between the middle crossbeam and the balanced suspension crossbeam is connected through a connecting plate; the connection between the right longitudinal beam and the described middle crossbeam and the balanced suspension crossbeam is connected through a connecting plate; the left longitudinal beam and the front The crossbeam and the tail crossbeam are all connected by fasteners, and the connections between the right longitudinal beam and the front crossbeam and the tail crossbeam are all connected by fasteners.

Among the above technical solutions, a more specific solution can also be: the front width of the heavy-duty truck frame is D, where D=940 mm, and the rear width is d, where d=810 mm. `` ``

Further: the middle part of the left longitudinal beam and the right longitudinal beam is made of a steel plate with a thickness of 8 mm and a yield strength greater than 750 MPa to form a channel-shaped beam with a height of H and a width of E, wherein: H=273 mm, E=90 mm; the middle part of the front crossbeam, middle crossbeam, balance suspension crossbeam and tail crossbeam is groove shape. the

Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

1. The frame assembly has a front width of 940 mm and a rear width of 810 mm, which can effectively meet the general purpose of vehicle layout and other system components.

2. The longitudinal beam of the frame is a channel-shaped beam with a height of 273 mm and a width of 90 mm made of a steel plate with a thickness of 8 mm and a yield strength greater than 750 MPa in the middle, and the section coefficient of bending resistance is large.

3. The beam is made of steel plate with a yield strength greater than 750MPa, with a groove structure, simple structure, high versatility, and light weight.

4. Due to the use of advanced methods for optimized design and the combination of new materials, the longitudinal beam reinforcement plate can be greatly shortened and thinned. The length is shortened from 4780mm to 1500mm, and the thickness is reduced from 5mm to 4mm. The frame assembly The weight has been reduced by about 200kg in total, which can effectively improve fuel economy.

Description of the attached drawings

Fig. 1 is a front view of the utility model.

Fig. 2 is a top view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

The heavy-duty truck frame shown in Fig. 1 and Fig. 2 includes left longitudinal beam 8, right longitudinal beam 2, front beam 1, middle beam 3, middle beam 4, balanced suspension beam 5 and tail beam 6; front beam 1 , middle crossbeam 3, balance suspension crossbeam 5 and the middle part of tail crossbeam 6 are trough-shaped; 3. The middle beam 4 and the balanced suspension beam 5 are all connected through the connecting plate 7; the connection between the connecting plate 7 and the left longitudinal beam 8 and the connection between the connecting plate 7 and the right longitudinal beam 2 are fixedly connected by bolts;

The left longitudinal beam 8 is fixedly connected with the front beam 1 and the tail beam 6 by bolts; the right longitudinal beam 2 is connected with the front beam 1 and the tail beam 6 by bolts.

Both the left longitudinal beam 8 and the right longitudinal beam 2 are made of a 750L steel plate with a thickness of 8 mm and a yield strength greater than 750 MPa in the middle to make a channel-shaped beam with a height of H and a width of E, where: H=273 mm, E=90 mm ;

Front crossbeam 1, middle crossbeam 3, middle crossbeam 4, balance suspension crossbeam 5 and tail crossbeam 6 are all made of 750L steel plate with yield strength greater than 750MPa, with simple structure, high versatility and light weight.

The front width of the heavy-duty truck frame is D, D=940 mm, and the rear width is D, d=810 mm, which can effectively meet the general purpose of vehicle layout and other system components. the

Claims (3)

1. a HD truck vehicle frame includes left longeron, right vertical beam, front cross rail, intermediate transverse girder, equalizing suspension system crossbeam and transom beam; It is characterized in that: described left longeron and described intermediate transverse girder, the connection of equalizing suspension system crossbeam all connects by connecting panel; Described right vertical beam and described intermediate transverse girder, the connection of equalizing suspension system crossbeam all connects by connecting panel; Described left longeron connected by fastener with being connected all of described front cross rail and transom beam, and described right vertical beam connected by fastener with being connected all of described front cross rail and transom beam.

2. HD truck vehicle frame according to claim 1 is characterized in that: widely before the described HD truck vehicle frame be D, and the D=940 millimeter, the back is wide to be d, the d=810 millimeter.

3. HD truck vehicle frame according to claim 1 and 2, it is characterized in that: 8 millimeters thick are adopted at the middle part of described left longeron and right vertical beam, and yield strength is made greater than the steel plate of 750MPa and highly is H, and width is the beam of the flute profile of E, wherein: H=273 millimeter, E=90 millimeter; Described front cross rail, intermediate transverse girder, the middle part of equalizing suspension system crossbeam and transom beam is flute profile.

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