CN213441961U - 8X 2 truck chassis and 8X 2 truck - Google Patents

Abstract

The utility model discloses an 8 x 2 truck chassis and an 8 x 2 truck, which redesigns the configuration of a chassis axle on the basis of not changing the main parts of a four-axle truck chassis, wherein a third axle adopts a non-through drive axle, and a fourth axle adopts a bearing type non-drive axle; the third axle and the fourth axle are connected through a balanced suspension system, so that the load distribution can be more reasonable, and abnormal abrasion of tires caused by overlarge load of the drive axle is avoided. The fourth bridge is not designed into a lifting bridge, so that the wheelbase between the third bridge and the fourth bridge can be ensured to be small enough, and the eccentric wear of tires of the lifting bridge due to the overlarge turning diameter is avoided; the fourth bridge is not designed as a lifting bridge, so that the behavior that a user takes the lifting bridge as a means for avoiding overload punishment is completely eradicated, and the safety of vehicle operation is improved.

Description

8X 2 truck chassis and 8X 2 truck

Technical Field

The application belongs to the technical field of cargo trucks, and particularly relates to an 8X 2 cargo truck chassis and an 8X 2 cargo truck.

Background

With the increasing of the national over-limit treatment force, the axle load and the total mass of the commercial vehicle are restricted by laws and regulations, and vehicles which do not meet the requirements cannot pass through the national bulletin. On the other hand, the weight-calculating charging policy is further implemented, the development of high-grade roads in China and the increase of the traffic volume are realized, and the commercial vehicle for long-distance transportation is necessarily developed towards the direction of light weight and economy on the basis of optimizing indexes such as operation stability, smoothness, comfort and safety.

Under the condition that the matching of the whole vehicle is increasingly perfect, the most main research direction of light-weight vehicle models is light-weight design and light-weight material selection of all parts on a chassis, and under the condition that the configuration of the chassis is similar, the structures of all parts are the same and different, and the actual weight is almost the same; the development of the lightweight material is generally dominated by professional manufacturers for producing the material, market popularization is carried out after the development is successful, and the condition that a certain host factory exclusively shares the use right of the new material does not exist. The situation also causes that the utilization coefficients of the load mass of all similar vehicle types are similar, and the distance cannot be really pulled. On the other hand, the application of the air suspension technology can effectively reduce the dead weight of the chassis and improve the product comfort, but the product cost is obviously increased, and finally the cost is converted into the car purchasing cost of a user, so that the actual attraction to the user is not great, and the user group is limited.

At present, the most common light-weight vehicle type design is an 8X 2 truck with a lifting bridge, the lifting bridge has good economical efficiency, and the functions of light weight and bearing are exerted. The lifting bridge can be lowered to play a role in bearing weight during heavy load, and meanwhile, the pressure on a road is reduced; the lifting bridge can be lifted when the lifting bridge is in no-load, the tires of the lifting bridge have no frictional resistance with the ground, the abrasion of the tires and the driving resistance are reduced, and the oil consumption is further reduced.

The existing 8 x 2 truck with the lifting bridge occupies a large amount of space due to the fact that the corresponding lifting mechanism needs to be configured on the lifting bridge, and the lifting bridge can only be provided with a single tire. According to the national standard requirement, the load limit of the four-axle vehicle is 31 tons, and the load limit of the axle for installing a single tire is 7 tons. The conventional load configuration of the current 8 x 2 truck with the lifting bridge is that the double front axles and the lifting bridge are all 6.5 tons, the third axle is a driving axle, and the load configuration is 11-11.5 tons. The load limit of some single bridge bridges is not more than 10 tons, so that the existing 8 x 2 load-carrying vehicle with the lifting bridge cannot pass through the load-limiting road sections.

In addition, in order to save the transportation cost and reduce the loss of tires, a user often puts the lifting bridge in a lifting state for a long time in actual use, the lifting bridge is put down only when the lifting bridge is weighed at a high speed to prove that the lifting bridge is not overloaded, the lifting bridge is not used for a long time in the actual transportation process, the chassis is always in an overload running state, great potential safety hazards exist, and the road protection is not beneficial. Based on the above disorder of using the lift bridge, in recent years, with respect to the belt lift bridge or policy tightening, enterprises need to search for an entry point of designing a lightweight vehicle model again.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an 8X 2 truck chassis and 8X 2 cargo truck through to chassis rational in infrastructure configuration, on the basis that does not change the main spare part in chassis, effectively reduces the chassis dead weight, realizes the cargo truck lightweight.

Realize the utility model discloses the technical scheme that the purpose adopted does, an 8X 2 truck chassis, and the third axle is non-through drive axle, and the fourth axle is for bearing formula non-drive axle, the third axle with the fourth axle passes through balanced suspension headtotail.

Optionally, the balanced suspension system adopts a leaf spring balanced suspension system; or the balance suspension system adopts a split type balance suspension.

Optionally, the leaf spring balanced suspension system adopts a few leaf spring configuration.

Optionally, the wheelbase of the third bridge and the fourth bridge is 1300 mm-1450 mm.

Optionally, the interfaces of the non-through drive axle and the load-bearing non-drive axle connected to the balanced suspension system are related interfaces of a common suspension system axle.

Optionally, the third bridge and the fourth bridge are both double-tire and assembled.

Optionally, the first axle and the second axle of the 8 × 2 truck chassis are both steering axles.

Based on the same inventive concept, the utility model also correspondingly provides an 8X 2 truck, which adopts the 8X 2 truck chassis.

Optionally, the 8 × 2 truck includes a cab, an air intake device, a power system, a urea tank, a fuel tank, a post-processing system, a tool box, a battery, and a chassis of the 8 × 2 truck; wherein:

the power system is arranged between a first bridge and a second bridge of the 8 x 2 truck chassis;

the air inlet device is arranged on the first side behind the cab in a back-mounted mode; the urea tank and the fuel tank are arranged between the second bridge and the third bridge and are positioned on a first side;

the aftertreatment system, the tool box and the battery are arranged between the second bridge and the third bridge and on a second side.

Optionally, the aftertreatment system is located on the same side as the operator's seat of the cab.

According to the above technical scheme, the utility model provides an 8X 2 truck chassis and 8X 2 van on the basis that does not change the main spare part in four-axle vehicle chassis, to chassis axle configuration redesign, the third axle adopts non-through transaxle, and the fourth axle adopts the non-drive axle of formula of bearing, and third axle and fourth axle pass through balanced suspension system and connect. The fourth bridge is not designed into a lifting bridge, so that the chassis can be a real four-shaft chassis, a larger load can be borne, the behavior that a user takes the lifting bridge as a means for avoiding overload punishment is thoroughly avoided, and the running safety of the chassis is improved.

Compared with the prior art, the utility model has the advantages of as follows:

1. the fourth axle adopts a non-drive axle, the weight of the chassis can be reduced by about 500kg directly only by configuring one axle, the dead weight of the chassis can be effectively reduced, the weight-reduced mass of the chassis can be added on the transported goods, namely, compared with an 8 x 4 truck, the weight-reduced axle can bear about 500kg more goods, and the utilization coefficient of the load mass of the chassis is improved by about 8 percent.

2. The third axle adopts a non-through drive axle, the power of the power system is only transmitted to the third axle, a transmission shaft between the third axle and the fourth axle and an on-axle main speed reducer, a wheel-side speed reducer and a half axle required by the fourth axle drive axle are eliminated, the transmission chain is less, the transmission efficiency loss is reduced, and the transmission efficiency is at least improved by 2 percent compared with that of an 8 x 4 truck.

3. The fourth axle adopts non-drive axle, compares in driving the rear axle, and non-drive axle cost is lower to saved transmission shaft and the required drive assembly of fourth axle drive axle between third axle to fourth axle, makeed whole car cost lower, effectively promoted product competitiveness, the user cost reduction of purchasing, product market prospect is good.

4. Compare in the 8X 2 van of taking the lifting bridge, the utility model provides an 8X 2 truck chassis just has two driving points equally, but the dead weight is lower than the 8X 2 van of taking the lifting bridge, can bear the same great load with 8X 4 van moreover to load distribution is even, effectively solves the current tire that takes the 8X 2 van ubiquitous of lifting bridge and seriously and the unable current inherent defect in part limit for weight highway section, can avoid the user to incorrectly use the lifting bridge again and bring the safety risk.

5. Compared with the models of 4 × 2 trucks, 6 × 4 trucks and the like, the 8 × 2 truck provided by the utility model has larger cargo carrying volume; compared with an 8 multiplied by 4 truck type, the chassis load utilization coefficient is higher, the load distribution is more reasonable, and the chassis load utilization coefficient is particularly suitable for long-distance high-speed transportation industries such as logistics transportation.

Drawings

Fig. 1 is a schematic view of the entire structure of an 8 × 2 truck in the embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a layout view of the balanced suspension system of fig. 2.

Description of reference numerals: 1-cab, 2-air intake, 3-power system, 4-urea tank, 5-fuel tank, 6-after-treatment system, 7-tool box, 8-accumulator, 9-8 x 2 truck chassis, 91-first bridge, 92-second bridge, 93-third bridge, 94-fourth bridge, 95-frame, 96-balanced suspension system.

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

The embodiment of the utility model provides an 8X 2 cargo truck, this type cargo truck improve on 8X 4 cargo truck's basis and obtain, maintain each functional component configuration of 8X 4 cargo truck unchangeable, only improve the chassis structure, adopt 8X 2 cargo vehicle chassis, realize the cargo truck lightweight. The utility model discloses an 8X 2 truck chassis and 8X 2 van to china's trans-provincial long-distance transport, use operating mode such as production place and consumption ground distance are far away, and the same coaxial number motorcycle type of gross mass is far surpassed to the carrier mass utilization coefficient, can win considerable benefit for the user.

The 8 x 2 truck chassis can be obtained by modifying an 8 x 4 truck chassis, and the middle and rear axles are redesigned under the condition of ensuring that an engine, a speed changer, a frame 95, a front suspension system and the like are not influenced.

Specifically, referring to fig. 1 to 3, the chassis 9 of the 8 × 2 truck adopts a configuration of a double front axle, a non-through drive middle axle and a load-bearing rear axle, that is, both the first axle 91 and the second axle 92 are steering axles, and both the first axle 91 and the second axle 92 can steer, so that the chassis is a double front axle. The third axle 93 is a non-through drive axle, and has a structure similar to a common drive rear axle except for epitaxial structures such as a thrust rod mounting interface. The fourth bridge 94 is a bearing type non-drive bridge, and the bridge is not designed into a lifting bridge so as to ensure that the chassis meets the national standard requirement, ensure that the chassis is a real four-shaft chassis, bear larger load, reduce the fuel consumption rate, thoroughly avoid the action of taking the lifting bridge as a means for avoiding overload punishment by a user, and improve the running safety of the chassis. The third axle 93 and the fourth axle 94 are connected by a balanced suspension system 96 to ensure reasonable axle load distribution of the chassis, as shown in fig. 3.

The existing 8X 2 truck with the lifting axle has the advantages that the wheel base between the lifting axle and the drive axle is larger than that of a common chassis due to the existence of a lifting mechanism, so that the turning radius of the chassis is increased, and tires of the lifting axle can be worn eccentrically when the truck is used. The utility model discloses in, this 8X 2 van is because fourth bridge 94 does not design into the lift bridge, corresponding cancellation occupy the hoist mechanism in partial chassis space, and then has dwindled the wheel base of transaxle and fourth bridge, and third bridge 93 is 1300mm ~ 1450mm with the wheel base of fourth bridge 94, and fourth bridge 94 turning radius reduces, avoids the too big fourth bridge 94 tire eccentric wear that makes of turning diameter.

In order to improve the product universality, the interfaces of the non-through drive axle and the load-bearing non-drive axle with the suspension system and the universal suspension system axle are kept consistent. To improve the running stability and reduce the pressure on the road, the third bridge 93 and the fourth bridge 94 are both double-tires and mounted, i.e., a double-tire is provided for each ground point of the third bridge 93 and the fourth bridge 94. Because third axle 93 and fourth axle 94 are double tires and are installed, consequently the load configuration can keep unanimous with present 8 x 4 van, promptly the utility model discloses an 8 x 2 van, two front axle loads are 6.5 tons, and the load configuration of third axle transaxle and fourth axle non-drive axle is 9 tons. Compared with the existing 8X 2 truck with the lifting axle, the load of the driving axle is reduced by about 2 tons, the load distribution of the chassis is more uniform, and abnormal abrasion of tires caused by overlarge load of the driving axle is avoided. In order to further reduce the dead weight of the chassis, the balance suspension system does not limit the type of the balance suspension, and a split balance suspension or a universal steel plate spring balance suspension system can be adopted, preferably the steel plate spring balance suspension system. In order to further reduce the dead weight of the chassis, the front suspension system and the rear suspension system can adopt a few-leaf spring configuration.

In addition to redesigning the 8 x 2 truck chassis 9, the 8 x 2 truck of the present embodiment also provides a reasonable modular arrangement of the functional components, including the cab 1, the air intake 2, the power system 3, the urea tank 4, the fuel tank 5, the aftertreatment system 6, the tool box 7 and the battery 12. Specifically, referring to fig. 2, the powertrain 3 is disposed between a first bridge 91 and a second bridge 92 of the 8 × 2 truck chassis; the air inlet device 2 is arranged at the first side behind the cab 1; the urea tank 4 and the fuel tank 5 are arranged between the second bridge 92 and the third bridge 93 on the first side; the aftertreatment system 6, the tool box 7 and the battery 8 are arranged between the second and third bridges 92, 93 on the second side. The layout enables the weights of the left side and the right side of the whole vehicle to be basically equal, and the stress of the tire is optimized.

According to the driving habits of various countries, the after-treatment system can be arranged on the left side or the right side, and the after-treatment system and the driver seat of the cab are positioned on the same side, so that the tail gas can not be discharged to the sidewalk. For example, the left-driving right-driving habit in China is that the aftertreatment system 6 is arranged between the left 2 and the 3 bridges, and tail gas is discharged from the left side of the tail of the truck and cannot be discharged to a sidewalk on the right side of a road.

Application example:

research finds that with the rapid development of the logistics industry, the long-distance transportation across provinces shows the increasing trend of blowout. In order to load more goods, four-axle vehicles are generally preferred, and 8 × 4 or 8 × 2 vehicle types (with lifting bridges) are commonly used, but the power of the 8 × 4 vehicle type is obviously rich for logistics transportation, while the current 8 × 2 vehicle types are chassis with lifting bridges, and have inherent defects in design, tires which are seriously worn on two bridges after being frequently replaced after being used for a long time, and the vehicle is fatally hit in a road section which cannot pass due to limited bridge load. The tangible and intangible costs are ultimately borne by the users, causing complaints from the users.

The utility model discloses an analyze user's user demand, stride provincial long-distance transport to china, use operating mode such as far away is apart from with consuming the ground to the place of production, dispose 8X 4 truck chassis again, carry out the intensive calculation to the atress of chassis under various operating modes, check and test verification, independently research and development the utility model discloses an 8X 2 lightweight van and chassis to can ensure that each item performance index of this chassis satisfies national standard requirement and user demand, the coaxial number motorcycle type (8X 4 van) that total mass is the same is far surpassed to carrier mass utilization coefficient (the ratio of cargo quota and chassis dead weight), the performance parameter is far surpassed and is taken the 8X 2 motorcycle type of lifting bridge far away, can reduce chassis self weight by a wide margin, purchase car cost and use cost, can win considerable benefit for the user, effectively promote product competitiveness. And the 8X 2 light-weight truck and the chassis thereof have more reasonable load distribution, and are more suitable for logistics transportation with heavier cargo carrying quality.

Through the embodiment, the utility model has the following beneficial effect or advantage:

1) the utility model provides an 8X 2 truck chassis and 8X 2 truck, fourth axle adopt non-drive axle, only axle configuration one item can directly subtract about 500kg of weight, effectively reduce the chassis dead weight, and the chassis subtracts the quality of heavy and can change and add on the transportation goods, compares promptly and can bear 500kg about more in 8X 4 truck, improves the chassis and carries the quality and utilize the coefficient.

2) The utility model provides an 8X 2 truck chassis and 8X 2 van, the third axle adopts non-through drive axle, and driving system's power only transmits to the third axle, and the driving chain is few, has reduced the transmission efficiency loss.

3) The utility model provides an 8X 2 truck chassis and 8X 2 van, fourth axle adopt non-drive axle, compare in driving the rear axle, non-drive axle cost is lower to the transmission shaft between third axle to fourth axle has been saved, makes whole car cost lower, effectively promotes the product competitiveness, and the user purchases the car cost reduction, and product market prospect is good.

4) The utility model provides an 8X 2 truck chassis and 8X 2 truck, two rear axle load distribute more rationally, have effectively solved two bridge rubs behind the current 8X 2 chassis serious, the drive axle load surpasss the defect of part road surface limit value, can bear great load again, reduce the fuel consumption rate.

5. Compared with the models of 4 × 2 trucks, 6 × 4 trucks and the like, the 8 × 2 truck provided by the utility model has larger cargo carrying volume; compared with an 8 x 4 truck type, the chassis load utilization coefficient is higher, and compared with the existing 8 x 2 truck type, the performance is more excellent. Is particularly suitable for the long-distance high-speed transportation industry such as logistics transportation and the like.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. An 8 x 2 truck chassis, which is characterized in that: the third bridge is a non-through drive axle, the fourth bridge is a bearing type non-drive axle, and the third bridge and the fourth bridge are connected through a balanced suspension system.

2. The 8 x 2 truck chassis of claim 1 wherein: the balanced suspension system adopts a steel plate spring balanced suspension system; or the balance suspension system adopts a split type balance suspension.

3. The 8 x 2 truck chassis of claim 2 wherein: the steel plate spring balance suspension system is configured by a few steel plate springs.

4. The 8 x 2 truck chassis of claim 1 wherein: the wheel base of the third bridge and the fourth bridge is 1300 mm-1450 mm.

5. The 8 x 2 truck chassis of any one of claims 1-4 wherein: and the interfaces of the non-through drive axle and the bearing type non-drive axle, which are connected with the balanced suspension system, adopt the related interfaces of a universal suspension system axle.

6. The 8 x 2 truck chassis of any one of claims 1-4 wherein: and the third bridge and the fourth bridge are both double-tire assembled.

7. The 8 x 2 truck chassis of any one of claims 1-4 wherein: the first axle and the second axle of the 8 x 2 truck chassis are steering axles.

8. An 8 x 2 utility truck, characterized in that: use of an 8 x 2 truck chassis according to any one of claims 1 to 7.

9. An 8 x 2 cart according to claim 8 wherein: the 8 x 2 truck comprises a cab, an air inlet device, a power system, a urea box, a fuel tank, a post-processing system, a tool box, a storage battery and a chassis of the 8 x 2 truck; wherein:

the power system is arranged between a first bridge and a second bridge of the 8 x 2 truck chassis;

the air inlet device is arranged on the first side behind the cab in a back-mounted mode; the urea tank and the fuel tank are arranged between the second bridge and the third bridge and are positioned on a first side;

the aftertreatment system, the tool box and the battery are arranged between the second bridge and the third bridge and on a second side.

10. An 8 x 2 cart according to claim 9 wherein: the aftertreatment system is located on the same side as a driver's seat of the cab.

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