An articulated dump truck cab designed to prevent rollover and falling objects

Abstract

This utility model discloses an articulated dump truck anti-rollover and anti-falling-object cab, comprising a cage-like frame structure without A-pillars, welded together from a roof frame, a rear frame, a floor frame, door pillars, and two sets of side frames. The cage-like frame is covered with a skin assembly. The side frames include B-pillars and C-pillars connecting the roof frame and the floor frame, and several support beams located between the B-pillars and C-pillars. The advantages of this utility model compared to existing technologies are: it provides an articulated dump truck anti-rollover and anti-falling-object cab that ensures cab strength and reduces obstruction of vision.

Description

Technical Field

[0001] This utility model relates to the structure of a cab for engineering vehicles, specifically an articulated dump truck cab designed to prevent rollover and falling objects. Background Technology

[0002] Articulated dump trucks, due to their unique drive system, can adapt to harsh terrains such as mud, potholes, and deserts, and are mainly used in mining, road infrastructure, and landfills. However, due to the complex operating conditions, rollover and collision accidents occur from time to time, resulting in significant deformation of the cab and threatening the personal safety of the driver and passengers.

[0003] Currently, to improve the structural strength of the cab, a three-pillar structure is generally adopted. Retaining the A-pillar can increase structural strength, but it has a certain impact on forward visibility.

[0004] To reduce injuries to drivers and passengers in accidents and ensure visibility, it is essential to design a cab with rollover and falling object protection capabilities. Utility Model Content

[0005] (I) Problems to be solved

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide an articulated dump truck cab that ensures cab strength and reduces obstruction of vision, preventing rollover and falling objects.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an articulated dump truck anti-rollover and anti-falling object cab, including a cage-shaped frame structure without A-pillars, which is welded from a roof frame, a rear frame, a floor frame, door pillars and two sets of side frames. The outer layer of the cage-shaped frame is welded with a skin assembly.

[0009] The side frame consists of B-columns and C-columns connected between the roof frame and the base frame, and several supporting beams located between the B-columns and C-columns.

[0010] As an improvement, the side frame also includes a front crossbeam and a rear crossbeam connecting the door pillar, B pillar and C pillar;

[0011] The upper end of the front crossbeam is welded to the roof frame with a central vertical beam.

[0012] As an improvement, the support beam includes a central diagonal support, a central transverse support, and a lower diagonal support arranged sequentially from top to bottom.

[0013] As an improvement, the rear frame includes a double-layer rear window reinforcement plate connected between the side frame and the roof frame, and a rear load-bearing structure connected between the double-layer rear window reinforcement plate and the bottom frame.

[0014] As an improvement, the rear support structure includes a rear upper inclined support connected between the bottom wall of the double-layer rear window reinforcement plate and the side frame, and a vertical beam connected in the middle of the rear.

[0015] The top of the vertical beam in the rear enclosure is connected to two sets of diagonal supports in the rear enclosure, forming a Y-shape between the two sets of diagonal supports and the vertical beam in the rear enclosure.

[0016] As an improvement, the roof frame includes a roof crossbeam group and a roof longitudinal beam group that are cross-welded to form a frame structure, and the bottom plate frame includes a bottom plate crossbeam group and a bottom plate longitudinal beam group that are cross-welded to form a frame structure.

[0017] (III) Beneficial Effects

[0018] The advantages of this utility model compared with the prior art are as follows: In this application, the side frame mainly bears lateral force and absorbs energy, the roof frame mainly bears vertical force and falling object impact, the rear frame and support mainly bear longitudinal force, and the bottom plate frame is fixed to the vehicle frame as a base and bears the forces in all directions of the entire frame.

[0019] The entire frame adopts a profile welding structure, which is simple and does not require stamping molds. At the same time, the main body of the structure uses profiles of conventional size and material, without special steel pipes, resulting in low manufacturing costs. By increasing the strength of the B-pillar and the rear structure, the conventional A-pillar is eliminated, which helps to improve the forward visibility. Attached Figure Description

[0020] Figure 1 This is a structural diagram of an articulated dump truck cab designed to prevent rollover and falling objects.

[0021] Figure 2 This is a structural diagram of a second-view view of an articulated dump truck's anti-rollover and anti-falling-object cab.

[0022] Figure 3 This is a structural diagram of a third-person view of an articulated dump truck's anti-rollover and anti-falling-object cab.

[0023] Attached diagram descriptions: 1-Front crossbeam, 2-Middle vertical beam, 3-Rear crossbeam, 4-Left B-pillar, 5-Left C-pillar, 6-Middle diagonal support, 7-Middle transverse support, 8-Lower diagonal support, 9-Door pillar, 10-Front roof crossbeam, 11-Middle roof crossbeam, 12-Middle roof longitudinal beam, 13-Short roof longitudinal beam, 14-Right roof longitudinal beam, 15-Rear roof crossbeam, 16-Right C-pillar, 17-Upper rear diagonal support, 18-Rear floor crossbeam, 19-Middle rear diagonal support, 20-Middle rear vertical beam, 21-Rear window reinforcement plate, 22-Left floor longitudinal beam, 23-Left floor crossbeam, 24-Middle floor longitudinal beam, 25-Middle floor crossbeam, 26-Right floor crossbeam, 27-Front floor crossbeam, 28-Right floor longitudinal beam. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0025] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] Please refer to the appendix carefully. Figure 1-3 An articulated dump truck cab designed to prevent rollover and falling objects is provided. It adopts a structure with a welded frame made of profiles and an outer skin. The main frame includes door pillars, B / C pillars, floor frame, rear frame, roof frame, and pillar diagonal supports.

[0030] When the vehicle overturns, the cab is compressed and deformed. The large-section B-pillar and various diagonal supports can effectively reduce the amount of frame deformation and prevent the structure from intruding into the human body. At the same time, the double-layer rear window reinforcement plate undergoes torsional deformation to absorb some energy and reduce the impact. The roof frame can minimize the impact deformation of falling objects on the top of the cab through the crossbeams and longitudinal beams, protecting the safety of the human head.

[0031] In its specific implementation, the main frame of this utility model is welded from four structural parts to form a closed cage structure, which can withstand the force from all directions to the greatest extent. All columns, beams and diagonal supports are made of rectangular steel pipes and U-shaped channel steel.

[0032] The side frame includes: front crossbeam 1, middle vertical beam 2, rear crossbeam 3, left B-pillar 4, left C-pillar 5, middle diagonal support 6, middle transverse support 7, lower diagonal support 8, and door pillar 9. When the vehicle rolls over, the side of the cab is subjected to external force compression and impact. At this time, the lateral force is mainly borne by the left B-pillar 4 and left C-pillar 5. The rigidity of the structure is not necessarily better the higher it is. In order to reduce the injury to the human body in the accident, the structure needs to absorb the impact energy through appropriate deformation. The double-layer rear window reinforcement plate 15 will undergo plastic deformation when subjected to a certain amount of compression, which is conducive to energy absorption. The main load-bearing structure is in the rear side. Eliminating the front A-pillar can improve the forward visibility.

[0033] The roof frame includes: front roof crossbeam 10, middle roof crossbeam 11, middle roof longitudinal beam 12, short roof longitudinal beam 13, right roof longitudinal beam 14, and rear roof crossbeam 15. When the roof is subjected to vertical force and impact from falling objects, the various crossbeams and longitudinal beams of the roof will undergo slight deformation under stress, but this ensures that the structure does not intrude into the DLV and does not cause injury to the head.

[0034] The rear frame includes: left C-pillar 5, rear roof crossbeam 15, right C-pillar 16, upper rear diagonal support 17, rear floor crossbeam 18, middle rear diagonal support 19, middle rear vertical beam 20, and rear window reinforcement plate 21. When the cab is subjected to rear longitudinal compression and impact, the main load-bearing structures are the left C-pillar 5 and right C-pillar 16, while the side B-pillars and diagonal supports also bear part of the force.

[0035] The floor frame includes: rear crossbeam 18, left longitudinal beam 22, left crossbeam 23, middle longitudinal beam 24, middle crossbeam 25, right crossbeam 26, front crossbeam 27, and right longitudinal beam 28. As the base, the floor frame primarily connects the chassis to the upper frame. The connection strength between the left longitudinal beam 22 and the rear crossbeam 18 and the chassis is crucial. When the top of the frame is subjected to lateral and longitudinal compression and impact, tearing at the floor connection point will cause the entire frame to tilt significantly.

[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A roll over and spill resistant cab for an articulated dump truck, characterized by: It includes a cage-like frame structure without A-pillars, which is welded together from a roof frame, a rear frame, a floor frame, door pillars and two sets of side frames. The outer layer of the cage-like frame is welded with a skin assembly. The side frame consists of B-columns and C-columns connected between the roof frame and the base frame, and several supporting beams located between the B-columns and C-columns.

2. A roll over and spill resistant cab for a hinged dump truck as defined in claim 1 wherein: The side frame also includes a front crossbeam and a rear crossbeam connected between the door pillar, B pillar and C pillar; The upper end of the front crossbeam is welded to the roof frame with a central vertical beam.

3. A roll over and spill resistant cab for an articulated dump truck as claimed in claim 2, characterised in that: The support beam includes a central diagonal support, a central transverse support, and a lower diagonal support arranged sequentially from top to bottom.

4. A roll over and spill resistant cab for a hinged dump truck as defined in claim 1 wherein: The rear frame includes a double-layer rear window reinforcement plate connected between the side frame and the roof frame, and a rear load-bearing structure connected between the double-layer rear window reinforcement plate and the bottom frame.

5. The articulated dump truck anti-rollover and anti-falling-object cab according to claim 4, characterized in that: The rear support structure includes an upper diagonal support for the rear enclosure that connects the bottom wall of the double-layer rear window reinforcement plate and the side frame, and a central vertical beam for the rear enclosure that connects to the upper part of the bottom plate frame. The top of the vertical beam in the rear enclosure is connected to two sets of diagonal supports in the rear enclosure, forming a Y-shape between the two sets of diagonal supports and the vertical beam in the rear enclosure.

6. A roll over and spill resistant cab for a hinged dump truck as in any one of claims 1-5, wherein: The roof frame includes a roof crossbeam group and a roof longitudinal beam group that are cross-welded to form a frame structure, and the base frame includes a base plate crossbeam group and a base plate longitudinal beam group that are cross-welded to form a frame structure.

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