CN219295519U

CN219295519U - Chassis arrangement structure of short-wheelbase dumper

Info

Publication number: CN219295519U
Application number: CN202320763046.3U
Authority: CN
Inventors: 刘鹤; 曹立军; 沙迪; 郭金花
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-04
Anticipated expiration: 2033-04-03

Abstract

The utility model relates to a chassis arrangement structure of a short wheelbase dumper, which belongs to the technical field of vehicle chassis and comprises a frame body, wherein a first bridge, a second bridge, a third bridge and a fourth bridge are sequentially arranged on the frame body from front to back; the two sides of the frame body between the two bridges and the three bridges are respectively provided with an oil tank and a battery box; the inner side of the frame body is provided with a service brake air cylinder corresponding to the oil tank. Through setting up the service brake gas receiver in the frame body inboard, oil tank and storage battery case are installed respectively in the both sides of frame body, have realized optimizing the overall arrangement of spare part in the frame body, outside between the two-three bridge, have increased the clearance between spare part and the tire on the two-three bridge, have provided the space for installing the protective equipment additional.

Description

Chassis arrangement structure of short-wheelbase dumper

Technical Field

The utility model belongs to the technical field of vehicle chassis, and particularly relates to a chassis arrangement structure of a short-wheelbase dumper.

Background

Dump trucks are vehicles that self-unload cargo by hydraulic or mechanical lifting. Also known as a dump truck. The hydraulic lifting device consists of an automobile chassis, a hydraulic lifting mechanism, a cargo box, a power taking device and the like. The carriage of the dump truck is divided into two types, namely backward tipping and lateral tipping, the motion of a piston rod is controlled through an operating system, the backward tipping is common, the piston rod is pushed to tip the carriage, and a few of the carriages are tipped bidirectionally. Dump trucks are often combined with engineering machinery such as excavators, loaders, belt conveyors and the like in civil engineering to form a loading, transporting and unloading production line for loading, unloading and transporting earthwork, sand and bulk materials.

The engine, chassis and cab of the dump truck are constructed in the same way as a typical truck. High-pressure oil enters the lifting hydraulic cylinder through a distribution valve and an oil pipe, and a cab safety protection plate is arranged at the front end of a carriage. The engine drives the hydraulic pump through the speed changer and the force taking device, and the carriage hydraulic tipping mechanism consists of an oil tank, the hydraulic pump, a distributing valve, a lifting hydraulic cylinder, a control valve, an oil pipe and the like. The engine drives the hydraulic pump through the speed changer and the force taking device, and high-pressure oil enters the lifting hydraulic cylinder through the distributing valve and the oil pipe to push the piston rod to tilt the carriage. Later tipping is more common, and the car can be stopped in any desired inclined position by controlling the movement of the piston rod by the steering system. The carriage is reset by self gravity and hydraulic control.

GB1589 (vehicle, trailer and vehicle train overall size, axle load and mass limit) specifies a maximum allowable total mass limit of 25 tons for a 6X 4 dump truck and a maximum allowable total mass limit of 31 tons for an 8X 4 dump truck. With the increase of market demands, the carrying capacity of the 6×4 long-wheelbase dumper cannot meet the market demands, and the 6×4 long-wheelbase dumper gradually changes into an 8×4 short-wheelbase dumper type.

The shorter the wheelbase of the vehicle, the smaller the arrangement space of the chassis, and the more difficult the arrangement of each assembly of the chassis. The larger battery, the oil tank and the service brake air cylinder of the vehicle can be preferentially arranged on two sides of the frame, and the installation position can be selected between two or three bridges with larger distances. Considering that the road surface of the application environment of the dump truck is complex, a protective tool can be additionally arranged outside in order to protect the accessories. The existing chassis layout can cause that the gap between the driving tires of the automobile parts, which are close to the three axles, is too close to be additionally provided with protective equipment, so that the risk of damage to the automobile is increased.

Disclosure of Invention

The utility model provides a chassis arrangement structure of a dumper with a short wheelbase, which aims to solve the problems that protective equipment cannot be additionally arranged after parts are installed and the risk of damage of the parts is increased due to the fact that the wheelbase between two three axles is short.

The utility model is realized by the following technical scheme:

the chassis arrangement structure of the short wheelbase dumper comprises a frame body, wherein a first bridge, a second bridge, a third bridge and a fourth bridge are sequentially arranged on the frame body from front to back; the two sides of the frame body between the two bridges and the three bridges are respectively provided with an oil tank and a battery box; the inner side of the frame body is provided with a service brake air cylinder corresponding to the oil tank.

Through setting up the service brake gas receiver in the frame body inboard, oil tank and storage battery case are installed respectively in the both sides of frame body, have realized optimizing the overall arrangement of spare part in the frame body, outside between the two-three bridge, have increased the clearance between spare part and the tire on the two-three bridge, have provided the space for installing the protective equipment additional.

The utility model further improves that the battery box is of a double-layer structure. Through the bilayer structure of the battery box, the occupation of the battery box to the plane space can be optimized.

The utility model further improves that the side of the storage battery box, which is far away from the three-bridge, is provided with a urea box which is arranged on the frame body. The urea box and the battery box are arranged front and back so as to facilitate the maintenance operation in the later period.

A further development of the utility model provides that the volume of the tank is not more than 360L. Defining the upper limit of the tank can reduce the occupation of space.

The utility model further improves that the wheelbase between the first bridge and the second bridge is 1800mm, the wheelbase between the second bridge and the third bridge is 2325mm, and the wheelbase between the third bridge and the fourth bridge is 1350mm. After optimizing the layout of the spare and accessory parts, the adaptation with the short wheelbase is realized.

The utility model further improves that the inner side of the frame body is provided with a pressure-maintaining air cylinder corresponding to the battery box, and the pressure-maintaining air cylinder pipeline is communicated with the service brake air cylinder and a brake system arranged on the dump truck. The pressure maintaining air storage cylinder is used as a transition between the service brake air storage cylinder and the brake system, so that reasonable utilization of an air source can be ensured.

In a further improvement of the present utility model, the holding pressure air cylinder has a volume of 20L.

The utility model further improves that the two service brake air reservoirs are arranged, and the two service brake air reservoirs are communicated through a pipeline and are arranged on the frame body in a vertically stacked manner. The occupation of the planar space can be further reduced.

A further development of the utility model provides that the volume of the upper service brake cylinder is 20L and that of the lower service brake cylinder is 60L. Effectively ensures the reasonable distribution of the air source.

The utility model further improves that the pressure maintaining air cylinder, the service brake air cylinder at the upper part and the service brake air cylinder at the lower part are sequentially communicated through pipelines.

From the technical scheme, the beneficial effects of the utility model are as follows: through setting up the service brake gas receiver in the frame body inboard, oil tank and storage battery case are installed respectively in the both sides of frame body, have realized optimizing the overall arrangement of spare part in the frame body, outside between the two-three bridge, have increased the clearance between spare part and the tire on the two-three bridge, have provided the space for installing the protective equipment additional.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view of a portion of a frame body according to an embodiment of the present utility model.

In the accompanying drawings: 1. the automobile comprises a cab, 2, a frame, 3, a first axle, 4, a second axle, 5, a third axle, 6, a fourth axle, 7, a coarse filter, 8, an oil tank, 9, an exhaust system, 10, a urea tank, 11, a double-layer battery box, 12, a speed changer, 13, a first transmission shaft, 14, a second transmission shaft, 15, a pressure maintaining air reservoir, 16, a service brake air reservoir, 17 and an oil filter.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

As shown in fig. 1 and 2, the chassis arrangement structure of the short wheelbase dumper comprises a frame 2 body, wherein a first bridge 3, a second bridge 4, a third bridge 5 and a fourth bridge 6 are sequentially arranged on the frame 2 body from front to back; an oil tank 8 and a battery box are respectively arranged at two sides of the frame 2 body between the two bridges 4 and the three bridges 5; the battery box is of a double-layer structure. Through the bilayer structure of the battery box, the occupation of the battery box to the plane space can be optimized. One side of the battery box, which is far away from the three-bridge 5, is provided with a urea box 10 which is arranged on the body of the frame 2. The urea box 10 and the battery box are arranged in front and back so as to facilitate the later maintenance operation. The volume of the oil tank 8 is not more than 360L. Defining the upper limit of the tank 8 can reduce the occupation of space.

The inner side of the frame 2 body is provided with a service brake air cylinder 16 corresponding to the oil tank 8. Through setting up service brake gas receiver 16 in the inboard of frame 2 body, oil tank 8 and storage battery case are installed respectively in the both sides of frame 2 body, have realized optimizing the overall arrangement of spare part in the frame 2 body between two three bridges 5, the clearance between the tire on increase spare part and two three bridges 5 has provided the space for installing the protective equipment additional.

The inside of the frame 2 body is provided with a pressure-maintaining air cylinder 15 corresponding to the battery box, and the pressure-maintaining air cylinder 15 is communicated with a service brake air cylinder 16 and a brake system arranged on the dump truck through a pipeline. By using the pressure-maintaining air reservoir 15 as a transition between the service brake air reservoir 16 and the brake system, a reasonable utilization of the air source can be ensured.

The volume of the pressure maintaining air cylinder 15 is 20L.

The two service brake air reservoirs 16 are arranged, and the two service brake air reservoirs 16 are communicated through a pipeline and are arranged on the frame 2 body in a vertically stacked mode. The occupation of the planar space can be further reduced.

The volume of the upper service brake cylinder 16 is 20L, and the volume of the lower service brake cylinder 16 is 60L. Effectively ensures the reasonable distribution of the air source.

The pressure maintaining air cylinder 15, the service brake air cylinder 16 positioned above and the service brake air cylinder 16 positioned below are sequentially connected through pipelines.

The wheelbase between the first bridge 3 and the second bridge 4 is 1800mm, the wheelbase between the second bridge 4 and the third bridge 5 is 2325mm, and the wheelbase between the third bridge 5 and the fourth bridge 6 is 1350mm. After optimizing the layout of the spare and accessory parts, the adaptation with the short wheelbase is realized.

The front end of the frame 2 body is provided with a cab 1 which corresponds to a bridge 3 from top to bottom. An engine is arranged at the lower part of the cab 1, and a speed changer 12, a first transmission shaft 13 and a second transmission shaft 14 which are sequentially linked are arranged in the middle of the frame 2 body from front to back. The transmission 12 is driven by the engine. The two sides of the rear side of the cab 1 are respectively provided with an oil filter 17 and an exhaust system 9. A strainer 7 is arranged on the frame 2 body in front of the oil tank 8. Thereby forming a reasonable layout of the larger parts of the vehicle on the body of the frame 2.

According to the chassis arrangement structure of the short-wheelbase dumper, the service brake air cylinder is arranged on the inner side of the frame body, the oil tank and the battery box are respectively arranged on the two sides of the frame body, so that the layout optimization of spare parts between two and three axles on the inner side and the outer side of the frame body is realized, the gap between the spare parts and tires on the two and three axles is increased, and a space is provided for additionally installing the protective equipment.

In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments are only required to be referred to each other.

The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The chassis arrangement structure of the short wheelbase dumper comprises a frame (2) body, wherein a first bridge (3), a second bridge (4), a third bridge (5) and a fourth bridge (6) are sequentially arranged on the frame (2) body from front to back; the bicycle frame is characterized in that an oil tank (8) and a battery box are respectively arranged at two sides of a bicycle frame (2) body between the two bridges (4) and the three bridges (5); the inner side of the frame (2) body is provided with a service brake air cylinder (16) corresponding to the oil tank (8).

2. The chassis arrangement structure of a short wheelbase dump truck according to claim 1, wherein the battery box has a double-layer structure.

3. The chassis arrangement structure of the short wheelbase dump truck according to claim 2, wherein a side of the battery box away from the three-axle (5) is provided with a urea box (10) mounted on the body of the truck frame (2).

4. A short wheelbase dump truck chassis arrangement according to any one of claims 1 to 3, characterized in that the volume of the tank (8) is not more than 360L.

5. The chassis arrangement structure of a short wheelbase dump truck according to claim 4, wherein the wheelbase between the first axle (3) and the second axle (4) is 1800mm, the wheelbase between the second axle (4) and the third axle (5) is 2325mm, and the wheelbase between the third axle (5) and the fourth axle (6) is 1350mm.

6. The chassis arrangement structure of the short wheelbase dumper according to claim 5, wherein a pressure-maintaining air reservoir (15) corresponding to a battery box is arranged on the inner side of the frame (2) body, and a pipeline of the pressure-maintaining air reservoir (15) is communicated with a service brake air reservoir (16) and a brake system arranged on the dumper.

7. The chassis arrangement structure of a short wheelbase dump truck according to claim 6, characterized in that the volume of the pressure maintaining air cylinder (15) is 20L.

8. The chassis arrangement structure of the short wheelbase dump truck according to claim 7, wherein two service brake air cylinders (16) are arranged, and the two service brake air cylinders (16) are communicated through a pipeline and are arranged on the body of the truck frame (2) in a stacked mode.

9. The chassis arrangement of a short wheelbase dump truck according to claim 8, wherein the volume of the service brake air reservoir (16) above is 20L and the volume of the service brake air reservoir (16) below is 60L.

10. The chassis arrangement structure of a short wheelbase dump truck according to claim 9, wherein the pressure maintaining air cylinder (15), the service brake air cylinder (16) located above and the service brake air cylinder (16) located below are in line communication in this order.