CN205872190U - Semitrailer chassis and have van -type semitrailer of this chassis - Google Patents

Abstract

The utility model provides a semitrailer chassis and have van -type semitrailer of this chassis, the front end and the rear end of semitrailer chassis are provided with preceding end beam and back end beam respectively, a plurality of crossbeams have been placed on the chassis, the both ends of crossbeam are connected with the left side roof beam and the right roof beam, the crossbeam adopts the bathtub construction, run through left longeron and right longeron and with the crossbeam is connected, preceding end beam, left longeron, right longeron, crossbeam, back end beam, the left side roof beam and the right roof beam constitute a holistic frame construction. The utility model provides a semitrailer chassis is the gooseneck type structure, and the floor at carriage rear portion is overhead lower than anterior, and the interior height is bigger, corresponding increase the available volume in carriage.

Description

A kind of semitrailer chassis and there is the van-type semitrailer of this underframe

Technical field

This utility model belongs to vehicular field, particularly relates to a kind of semitrailer chassis and has the van-type semi-mounted fortune of this underframe Defeated car.

Background technology

In recent years incoming call business's logistics is fast-developing, and Drop and pull transport is gradually popularized, and the market demand of van-type semitrailer is more come The most.Mostly current domestic van-type semitrailer underframe, be straight girder structure, and the floor in compartment is the highest.Due to whole Height is limited by regulation, and the interior height in compartment is less than normal, when transporting mail package or other lightweight goods, usually occurs loading The phenomenon that quality is less than normal, Drop and pull transport low in economic efficiency.It addition, mostly closed-type semitrailer underframe is to be made by common iron, Longitudinal beam, crossbeam and floor bearing structure comparison are heavy, and the own wt of underframe is bigger than normal, and excessive focuses in transportation certainly Waste the fuel oil consumption of tractor.

Further, country is to automobile environment-protection, energy-conservation, safety requirements increasingly stringent, the industrial transformation of haulage vehicle and technology liter Level is progressively accelerated, and the lightweight of van-type semitrailer and big volume are following development trends.

Utility model content

To this, this utility model provides a kind of semitrailer chassis, and the front end of described semitrailer chassis is provided with front beam, institute The rear end stating semitrailer chassis is provided with back end beam, and described underframe is placed with some crossbeams, and the two ends of described crossbeam connect to be had Left side beam and the right beam, described crossbeam uses bathtub construction, runs through left longeron and right vertical beam and be connected with described crossbeam, described Front beam, left longeron, right vertical beam, crossbeam, back end beam, left side beam and the right beam constitute an overall frame structure.

This utility model uses above technical scheme, has an advantage in that, the underframe of semitrailer, and this underframe is gooseneck structure Formula, rear portion, than anterior low one-level, ratio former minister, constitutes a ladder.So, floor, rear portion overhead ratio is relatively low, has added The loading space of effect, the semitrailer of this low-floor structure can load more goods, and economic benefit increases.It addition, it is this The compartment center of gravity ratio that underframe makes is relatively low, and vehicle travels more steady, and safety gets a promotion.

Preferably, between described left side beam and left longeron, between described left longeron and right vertical beam, right vertical beam and the right beam, Longitudinally it is equipped with the bearing beam of square structure.

This utility model uses above technical characteristic further, has an advantage in that, configuration aspects, and application crossbeam runs through longeron Structure, crossbeam repaves little bearing beam, increases the contact area of underframe and floor, the payload structure of underframe is more reasonable.This Plant the semitrailer chassis of structure, both ensure that the bearing capacity of underframe, and reduced again own wt.

Preferably, on described semitrailer chassis, plane is provided with floor compartment, and height rear end, described floor compartment front end is low, adopts With stepped.

Preferably, front beam uses square structure, and back end beam uses bending part fabricated structure.

Preferably, described left longeron and right vertical beam use structural I-beam, and gooseneck shape, variable cross-section, height rear end, front end is low.

Preferably, described semitrailer chassis uses high-strength steel sheet.

This utility model uses above technical characteristic further, has an advantage in that, material aspect, for alleviating self of underframe Weight, all metal materials all use high strength steel to make, and on the premise of ensureing underframe mechanical property, underframe are greatly reduced The weight of self.

This utility model also provides for a kind of van-type semitrailer, including semitrailer chassis as above.

The beneficial effects of the utility model are: the semitrailer chassis that this utility model provides, in gooseneck type structure, behind compartment The floor in portion is overhead low than front portion, and interior height is bigger, increases the available space in compartment accordingly.Semitrailer chassis All application high strength steels make, and crossbeam runs through the structure repaving little bearing beam on longeron, crossbeam, light structure, good rigidly, The load bearing structure of underframe is more reasonable, and reduces the own wt of car load.The van-type semi-mounted using this semitrailer chassis is transported Defeated car, has reached lightweight, the effect of big volume.

Accompanying drawing explanation

Fig. 1 is this utility model semitrailer chassis side view；

Fig. 2 is this utility model semitrailer chassis top view；

Fig. 3 is the A-A sectional view of this utility model semitrailer chassis；

Fig. 4 is the van-type semitrailer being applied to underframe of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail:

As Figure 1-4, a kind of semitrailer chassis, mainly by front beam 1, left longeron 2, right vertical beam 3, crossbeam 4 is some, after End carriage 5, left side beam 6, the right beam 7, little bearing beam 8 forms.

As shown in Figure 1 and Figure 2, left longeron 2, right vertical beam 3 are structural I-beam, gooseneck shape, variable cross-section, and height rear end, front end is low. Crossbeam 4 is bathtub construction, penetrates longeron 2, longeron 3 connected, and front beam 1 is square structure, is positioned at semitrailer chassis Front end, back end beam 5 is bending part fabricated structure, is positioned at the rear end of semitrailer chassis, left side beam 6 and the right beam 7 and is connected to The two ends of some crossbeams 4, front beam 1, left longeron 2, right vertical beam 3, some crossbeams 4, back end beam 5, left side beam 6, the right beams 7 Constitute an overall frame structure.

Such as Fig. 3, between left side beam 6 and left longeron 2, between left longeron 2 and right vertical beam 3, right vertical beam 3 and the right beam 7, longitudinal direction It is equipped with the little bearing beam 8 of square structure, lightweight, the gap being filled with between longeron and side bar, enhances holding of plane on underframe Loading capability, on the premise of ensureing Undercarriage structure performance, is greatly reduced the weight of underframe self, it is achieved that structure lightened.

Fig. 4 is the van-type semitrailer using this semitrailer chassis, and floor compartment 9 is laid on plane on semitrailer chassis, Height rear end, front end is low, stepped, adds the space of this step than current van-type semitrailer, car body 10 Volume increases, and the liftoff plate of floor compartment 9 is lower, on the one hand reduces the center of gravity in compartment, on the other hand is conducive to loading and unloading goods Thing.

Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to Assert that of the present utility model being embodied as is confined to these explanations.Ordinary skill for this utility model art For personnel, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should regard For belonging to protection domain of the present utility model.

Claims (7)

1. a semitrailer chassis, it is characterised in that the front-end and back-end of described semitrailer chassis be respectively arranged with front beam and Back end beam, described underframe is placed with some crossbeams, and the two ends of described crossbeam connect left side beam and the right beam, and described crossbeam is adopted By bathtub construction, run through left longeron and right vertical beam and be connected with described crossbeam, described front beam, left longeron, right vertical beam, crossbeam, Back end beam, left side beam and the right beam constitute an overall frame structure.

2. semitrailer chassis as claimed in claim 1, it is characterised in that between described left side beam and left longeron, a described left side indulges Between beam and right vertical beam, right vertical beam and the right beam, longitudinally it is equipped with the bearing beam of square structure.

3. semitrailer chassis as claimed in claim 1, it is characterised in that on described semitrailer chassis, plane is provided with ground, compartment Plate, height rear end, described floor compartment front end is low, uses stepped.

4. semitrailer chassis as claimed in claim 1, it is characterised in that front beam uses square structure, and back end beam uses folding Comer pieces fabricated structure.

5. semitrailer chassis as claimed in claim 1, it is characterised in that described left longeron and right vertical beam use I-beam knot Structure, gooseneck shape, variable cross-section, height rear end, front end is low.

6. semitrailer chassis as claimed in claim 1, it is characterised in that described semitrailer chassis uses high-strength steel sheet.

7. a van-type semitrailer, it is characterised in that include the semitrailer chassis as described in any one of claim 1-6.