Safe and rapid unloading container of off-highway dumper

Abstract

The utility model discloses a safe and quick unloading container of an off-highway dump truck, which relates to the technical field of off-highway dump trucks and comprises a container body, the bottom of the container body is fixed on a frame, a container door is mounted at the tail of the container body, and the container door is opened and closed through a driving device. Wherein the bottom of the container body is arranged in an up-down through mode, and a conveying device used for conveying materials in the container body is installed at the through position of the container body. The container door is driven to be opened and closed through the hydraulic oil cylinder, when discharging is needed, the motor is started to drive the conveying belt on the driving wheel to convey and discharge materials in the container to the tail of the container body, and the problems that in the prior art, when the materials are dumped, the container body needs to be lifted, and the materials cannot be dumped are solved. Therefore, potential safety hazards caused by backward movement and overturning of the gravity center are avoided, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of off-road dump trucks, in particular to an off-road dump truck with safe and fast cargo unloading capacity. Background Art

[0002] Off-road dump trucks are generally used in off-road field sites, such as large open-pit mines and water conservancy projects, and are used to transport coal, sand and gravel. In civil engineering, they are often combined with excavators, loaders, belt conveyors and other engineering machinery to form a loading, transporting and unloading production line to load, unload and transport earth, sand and gravel, and bulk materials.

[0003] Existing off-road dump trucks will lift the cargo box when dumping materials in mining areas. Since the soil near the rear wheels of the dump truck is soft, the center of gravity will shift backward when the cargo box is lifted, which may cause the vehicle to overturn in serious cases. Utility Model Content

[0004] The utility model aims to provide an off-road dump truck for safely and quickly unloading a cargo box, so as to solve the problem of unnecessary safety hazards caused by the need to raise the cargo box when unloading the existing off-road dump trucks proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cargo box for an off-road dump truck to safely and quickly unload cargo, comprising a cargo box body, the bottom of which is fixed to a frame, a box door is installed at the rear of the cargo box body, and the box door is opened and closed by a driving device;

[0006] Among them, the bottom of the cargo box body is set to be through-through from top to bottom, and a conveying device for conveying materials in the cargo box body is installed at the through-through part of the cargo box body.

[0007] Preferably, the driving device is symmetrically arranged in two groups on the left and right of the cargo box body.

[0008] Preferably, the box door is hinged to the cargo box body near the top, the driving device adopts a hydraulic cylinder, ear plates are installed on the cargo box body and the box door, and the hydraulic cylinder is installed on the two ear plates. The box door is driven to flip and open around the hinge point through the extension and retraction of the hydraulic cylinder.

[0009] Preferably, the conveying devices are symmetrically arranged in two groups at the bottom of the cargo box body.

[0010] Preferably, the middle of the bottom of the cargo box body is arranged in a convex shape.

[0011] Preferably, an opening for discharging materials is extended rearward through the bottom of the cargo box body, and the box door extends downward to abut against the conveying device to block the materials inside the cargo box body.

[0012] Preferably, the conveying device includes a driving wheel, on which a conveyor belt is installed, and the driving wheel is driven by the motor to rotate to drive the conveyor belt for conveying, and a supporting wheel for support is installed on the conveyor belt, and the supporting wheel is installed on the bottom of the cargo box body through a bracket, and the supporting wheel is connected to the bracket bearing.

[0013] Preferably, both sides of the conveyor belt are in close contact with the side walls of the bottom of the cargo box body.

[0014] Preferably, the driving wheel and the motor are installed at both ends of the conveyor belt.

[0015] Preferably, the support wheels are distributed in a plurality of groups at equal intervals between the two drive wheels.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model drives the box door to open and close through the hydraulic cylinder. When unloading is required, the motor is started to drive the conveyor belt on the driving wheel to transport the materials in the cargo box to the tail of the cargo box body for unloading. In this way, the safety hazard caused by the center of gravity shifting backward and overturning caused by the need to lift the cargo box body when dumping materials in the prior art is solved, and the utility model is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of the cargo box body with the door opened according to the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the cargo box body of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the utility model when viewed from above.

[0022] In the figure: 1. cargo box body; 2. frame; 3. box door; 4. hydraulic cylinder; 5. ear plate; 6. motor; 7. drive wheel; 8. conveyor belt; 9. support wheel; 10. bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , an off-road dump truck can unload cargo boxes safely and quickly. The bottom of the cargo box body 1 is fixed to the frame 2, and the cargo box body 1 does not need to be lifted when unloading. A box door 3 is installed at the rear of the cargo box body 1, and the box door 3 is opened and closed by a driving device; the box door 3 is hinged to the cargo box body 1 near the top, and the driving device adopts a hydraulic cylinder 4, which is symmetrically arranged on the left and right sides of the cargo box body 1. Ear plates 5 are installed on the cargo box body 1 and the box door 3, and the hydraulic cylinder 4 is installed on the two ear plates 5. The box door 3 is driven to flip and open around the hinge point through the extension and contraction of the two hydraulic cylinders 4.

[0025] The bottom of the cargo box body 1 is convex in the middle, and the two sides are connected up and down. The bottom of the cargo box body 1 is connected backward to form an open opening for material discharge, and the box door 3 extends downward to abut against the conveying device to block the material inside the cargo box body 1. Two sets of conveying devices for conveying materials in the cargo box body 1 are installed at the through-hole of the cargo box body 1.

[0026] In a specific implementation, the conveying device is equipped with a conveyor belt 8 on both sides of the driving wheel 7, which is tightly attached to the side walls of the bottom of the cargo box body 1. The driving wheel 7 is driven by the motor 6 to rotate and drive the conveyor belt 8 for transmission, wherein the driving wheel 7 and the motor 6 are installed at both ends of the conveyor belt 8.

[0027] The conveyor belt 8 is provided with supporting wheels 9 for supporting, and the supporting wheels 9 are evenly spaced and distributed in several groups between the two driving wheels 7. The supporting wheels 9 are installed at the bottom of the cargo box body 1 through a bracket 10, and the supporting wheels 9 are connected to the bracket 10 by bearings.

[0028] It should be noted that when using the off-road dump truck to safely and quickly unload the cargo box, the hydraulic cylinder 4 is started to extend, and the door 3 hinged at the rear of the cargo box body 1 is flipped around the hinge point, and then the motor 6 is started to drive the drive wheel 7 to rotate and drive the conveyor belt 8 for transmission, thereby realizing the unloading of the material inside the cargo box body 1 without lifting the cargo box body 1.

[0029] The interior of the cargo box body 1 is convex in the middle and concave on both sides, so that the materials can fall onto the conveyor belt for better transportation. The support wheels 9 are arranged between the driving wheels 7 to ensure the stability of transportation and prevent the two driving wheels 7 from collapsing due to excessive materials. At the same time, the conveyor belt 8 is close to the bottom side wall of the cargo box body 1 to prevent the materials inside the cargo box body 1 from leaking.

[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safe and fast unloading cargo box for an off-highway dump truck, characterized in that: It comprises a cargo box body (1), the bottom of the cargo box body (1) is fixed on a vehicle frame (2), a box door (3) is installed at the rear of the cargo box body (1), and the box door (3) is opened and closed by a driving device; The bottom of the cargo box body (1) is arranged to be through-connected from top to bottom, and a conveying device for conveying materials in the cargo box body (1) is installed at the through-connection of the cargo box body (1).

2. The safe and fast unloading cargo box of an off-road dump truck according to claim 1 is characterized by: The driving device is symmetrically arranged in two groups on the left and right sides of the cargo box body (1).

3. The safe and fast unloading cargo box of an off-highway dump truck according to claim 2 is characterized by: The box door (3) is hinged to the cargo box body (1) near the top, the driving device adopts a hydraulic cylinder (4), the cargo box body (1) and the box door (3) are both equipped with ear plates (5), the hydraulic cylinder (4) is installed on the two ear plates (5), and the box door (3) is driven to flip and open around the hinge point by the extension and retraction of the hydraulic cylinder (4).

4. The safe and fast unloading cargo box of an off-highway dump truck according to claim 3 is characterized by: The conveying device is provided in two groups symmetrically on the left and right sides of the bottom of the cargo box body (1).

5. The safe and fast unloading cargo box of an off-highway dump truck according to claim 4 is characterized by: The middle of the bottom of the cargo box body (1) is arranged in a convex shape.

6. The off-road dump truck safe and fast unloading cargo box according to claim 5, characterized in that: The bottom of the cargo box body (1) is penetrated and extends backward to form an open opening for discharging materials, and the box door (3) extends downward to abut against the conveying device to block the materials inside the cargo box body (1).

7. The safe and fast unloading cargo box of an off-road dump truck according to any one of claims 1 to 6, characterized in that: The conveying device comprises a driving wheel (7), a conveyor belt (8) being mounted on the driving wheel (7), the driving wheel (7) being driven by a motor (6) to rotate and drive the conveyor belt (8) for conveying, a supporting wheel (9) being mounted on the conveyor belt (8) for supporting, the supporting wheel (9) being mounted on the bottom of the cargo box body (1) via a bracket (10), and the supporting wheel (9) being connected to the bracket (10) by a bearing.

8. The safe and fast unloading cargo box of an off-highway dump truck according to claim 7, characterized in that: Both sides of the conveyor belt (8) are in close contact with the side walls of the bottom of the cargo box body (1).

9. The safe and fast unloading cargo box of an off-highway dump truck according to claim 7, characterized in that: The driving wheel (7) and the motor (6) are mounted on both ends of the conveyor belt (8).

10. The safe and fast unloading cargo box of an off-highway dump truck according to claim 9, characterized in that: The support wheels (9) are distributed in a plurality of groups at equal intervals between the two drive wheels (7).

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