A self-discharging vehicle transmission shaft auxiliary safety frame and a self-discharging vehicle

Abstract

The utility model provides a kind of self-unloading vehicle transmission shaft auxiliary safety frame and self-unloading vehicle, belong to self-unloading vehicle field, the self-unloading vehicle transmission shaft auxiliary safety frame includes arc support plate, and the inner arc surface of arc support plate is set up upwards;Two ends of arc support plate are connected with one connecting plate each, and the upper end of two connecting plates is connected with one frame mounting plate each, and frame mounting plate is located above arc support plate and is provided with frame mounting part, and can be installed in the bottom of the frame of self-unloading vehicle by bolt etc. fastener.The utility model has the beneficial effect that it can limit the safety of transmission shaft by the self-unloading vehicle transmission shaft auxiliary safety frame fixed on the frame, ensure that transmission shaft cannot expand the radius of rotation after breaking, only small range damage can be done, and the safe use of peripheral equipment is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of dump trucks, specifically relating to an auxiliary safety frame for the drive shaft of a dump truck and a dump truck. Background Technology

[0002] In high-frequency transportation scenarios involving dump trucks, the excessively long original driveshaft design makes the stress points inherently weak links. Due to prolonged exposure to complex road conditions, overloaded operation, and a lack of self-inspection and maintenance, the driveshaft is prone to gradual loosening and widening of clearances in the transmission system's mating components. This accelerates component wear and ultimately leads to frequent failures such as driveshaft detachment, breakage, and damage to auxiliary accessories. In particular, the third section (the longest segment) of the driveshaft, where it is fastened to the shaft end, often experiences shaft breakage due to unreliable fastening of other shaft connections and excessive rotational space within the driveshaft itself.

[0003] Furthermore, if a broken axle occurs during transportation, the continuous rotation of the broken end will cause severe impact and tearing damage to surrounding wiring, pipelines, air tanks, fuel tanks, and other accessories, resulting in significant damage to the dump truck, high repair costs, and lengthy repair times, thus greatly impacting transportation efficiency. In extreme cases, the broken axle may even create a fulcrum on the ground, leading to vehicle rollover or tipping accidents, seriously threatening driving safety and the lives and property of people and property. Utility Model Content

[0004] The purpose of this utility model is to address the problem that existing dump trucks, when experiencing a broken axle in high-frequency transportation operations, are prone to causing destructive damage to surrounding accessories. This invention proposes and designs an auxiliary safety frame for the drive shaft of a dump truck and a dump truck itself. By fixing the auxiliary safety frame to the chassis, the drive shaft is safely restricted, ensuring that the rotation radius cannot expand after the drive shaft breaks, and that it can only cause small-scale damage, thereby ensuring the safe use of surrounding equipment.

[0005] To achieve the above objectives, this utility model provides an auxiliary safety frame for the drive shaft of a dump truck. The frame includes an arc-shaped support plate with its inner arc surface facing upwards. Each end of the arc-shaped support plate is connected to a connecting plate, and the upper end of each connecting plate is connected to a frame mounting plate. The frame mounting plate is located above the arc-shaped support plate and has a frame mounting part, which can be installed on the bottom of the dump truck's frame through the cooperation of the frame mounting part and fasteners such as bolts. In the actual transportation process of the dump truck, this utility model can be fitted onto the outside of the drive shaft, which is prone to breakage, with the arc-shaped support plate below the drive shaft, the connecting plates on the front and rear sides of the drive shaft, and the frame mounting plate connected to the bottom of the frame. This provides safety restriction for the drive shaft, ensuring that if it breaks, its rotation radius cannot expand, and it can only cause small-scale damage, thus ensuring the safe use of surrounding equipment. Simultaneously, it also ensures that the broken drive shaft does not touch the ground, effectively preventing vehicle rollover accidents.

[0006] Furthermore, the connecting plate and the arc-shaped support plate are integrated into one piece, which can be directly obtained by bending steel plates. This allows the auxiliary safety frame to have excellent protective performance while also being economical and practical, making it widely applicable to various dump truck models. It also effectively reduces enterprise operating costs while improving vehicle safety performance.

[0007] Furthermore, the included angle between the two connecting plates is acute to ensure a smaller allowable space between them. This design allows the auxiliary safety frame to more precisely limit the swing amplitude of the broken shaft at the moment of drive shaft breakage and significantly weaken the destructive force generated by the rotation of the broken shaft, minimizing the impact risk to surrounding critical equipment such as fuel tanks and air tanks. Simultaneously, it significantly reduces the overall volume of the auxiliary safety frame, minimizing its occupation of the original space under the dump truck's frame and effectively preventing interference with other components on the frame, ensuring the normal operation of the vehicle's transmission system. In addition, the triangular-like stable structure formed by the acute angle makes the force transmission path more direct and efficient when the connecting plates bear axial and radial loads, enhancing the overall deformation resistance of the safety frame. Even under severe bumps or sudden impacts, it can continuously and stably restrain the drive shaft, comprehensively ensuring vehicle operation safety and the continuity of transportation operations.

[0008] Furthermore, both connecting plates are vertically positioned and correspond vertically to the dump truck's frame, thus forming a U-shaped structure together with the arc-shaped support plate. This makes the connection between the frame mounting plate and the connecting plate more stable, reduces uneven stress distribution that may result from tilted installation, and enhances the overall load-bearing capacity of the safety frame.

[0009] Furthermore, the frame mounting plate is welded to the connecting plate, and the frame mounting part includes mounting holes that penetrate the surface of the frame mounting plate, and can be installed together with the frame of the dump truck by fasteners such as bolts that penetrate the mounting holes.

[0010] Furthermore, the frame mounting plate is an L-shaped plate, and the connecting plate is located within the angle between the vertical and horizontal sections of the frame mounting plate. Both the vertical and horizontal sections of the frame mounting plate have mounting holes, which are used for connecting to the frame. Moreover, the frame mounting plate can be directly made of angle steel.

[0011] Furthermore, an airbag is installed on the inner arc surface of the arc-shaped support plate and / or the inner side of the connecting plate. The airbag has a vent, and an airflow sensor and a silicone plug are installed sequentially from the outside to the inside of the vent. The silicone plug is cap-shaped, with a convex arc surface at its top and a notch at the top of the convex arc surface. Because the inner end of the silicone plug uses a structure similar to a duckbill valve, under normal operating conditions, the airbag does not contact the drive shaft, and the gas inside the airbag cannot escape. Conversely, if the drive shaft breaks, the increased rotational space will cause it to contact the airbag and compress it, generating a certain thrust that pushes open the notch at the inner end of the silicone plug, allowing airflow to escape. The airflow sensor will then detect this airflow and transmit an electrical signal to its connected controller. In this way, the dump truck can use the controller in conjunction with the corresponding alarm system to achieve an alarm function, ensuring that the driver can promptly receive fault information. Furthermore, since the airbag has a certain length, it can increase the probability of contact between the airbag and the drive shaft. Compared with conventional sensor structures, it can ensure that the driver can receive the information in a timely manner.

[0012] Furthermore, the outer cover of the vent is equipped with a protective cover, inside which the airflow sensor and silicone plug are located, and the protective cover effectively prevents the airflow sensor from being interfered with.

[0013] On the other hand, this utility model also provides a dump truck, which includes a frame, a drive shaft is arranged below the frame, and the aforementioned dump truck drive shaft auxiliary safety frame is also installed below the frame. The arc-shaped support plate of the dump truck drive shaft auxiliary safety frame is arranged below the drive shaft, and the two connecting plates of the dump truck drive shaft auxiliary safety frame are respectively arranged on the front and rear sides of the drive shaft. The frame mounting plate of the dump truck drive shaft auxiliary safety frame is detachably connected to the bottom of the frame.

[0014] Furthermore, the bottom of the frame has a connecting hole. After the bolt passes through the frame mounting plate and the connecting hole in sequence, two nuts are threaded on. Through the mutual locking effect of the double nut fastening structure, the connection stability between the safety frame and the frame is effectively enhanced. Even under the working conditions of long-term bumping, vibration or impact load of the dump truck, it can prevent the safety frame from falling off due to loosening of the nuts, and ensure reliable restraint of the drive shaft.

[0015] As can be seen from the above technical solutions, this utility model has the following advantages: In the actual transportation process of dump trucks, this utility model can safely limit the drive shaft, ensuring that the drive shaft cannot expand its rotation radius after breakage, and can only cause small-scale damage, thereby ensuring the safe use of surrounding equipment; at the same time, it can also ensure that the broken drive shaft cannot touch the ground, effectively preventing vehicle rollover accidents caused by this. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0019] Figure 3 This is a schematic diagram of the air vent of the airbag in Embodiment 2 of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0021] In the diagram: 1. Frame; 2. Drive shaft; 3. Auxiliary safety frame for dump truck drive shaft; 4. Frame mounting plate; 5. Mounting hole; 6. Connecting plate; 7. Arc-shaped support plate; 8. Airbag; 9. Vent; 10. Silicone plug; 11. Outwardly convex arc surface; 12. Airflow sensor; 13. Protective cover; 14. Cutout; 15. Frame mounting section. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides a first type of auxiliary safety frame for the drive shaft of a dump truck, which includes an arc-shaped support plate 7 with its inner arc surface facing upward. Each end of the arc-shaped support plate 7 is connected to a connecting plate 6. The arc-shaped support plate 7 and the connecting plates 6 at its two ends are preferably integrally formed parts, that is, they are preferably obtained by bending steel plates, so that the auxiliary safety frame has excellent protective performance, good economy and practicality, and can be widely used in various dump truck models.

[0025] Meanwhile, the two connecting plates 6 can be designed as either an inclined structure with an included angle or as parallel vertical structures. That is, the structure formed by the two connecting plates and the arc-shaped support plate can be either a "V" shape or a "U" shape. Furthermore, when there is an included angle between the two connecting plates 6, this angle is preferably acute to ensure a small accommodating space between them. This allows the auxiliary safety frame to more accurately limit the swing amplitude of the broken shaft at the moment of transmission shaft 2 breakage, and significantly weakens the destructive force generated by the rotation of the broken shaft, minimizing the impact risk to surrounding critical equipment such as fuel tanks and air cylinders. In addition, the triangular-like stable structure formed by this acute angle makes the force transmission path more direct and efficient when the connecting plates 6 bear axial and radial loads, thereby enhancing the overall deformation resistance of the safety frame. Even in the face of severe bumps or sudden impacts, it can continuously and stably restrain the transmission shaft 2, comprehensively ensuring vehicle operation safety and the continuity of transportation operations.

[0026] In addition, in this embodiment, a frame mounting plate 4 is welded to the upper end of each of the two connecting plates 6. The frame mounting plate 4 is preferably an L-shaped plate cut from angle steel. The connecting plate 6 is located within the angle between the vertical and horizontal sections of the frame mounting plate 4. The vertical and horizontal sections of the frame mounting plate 4 are both perforated with mounting holes 5. The mounting holes 5 serve as the frame mounting part 15 to connect the frame mounting plate 4 to the frame 1.

[0027] In the actual transportation process of the dump truck, this embodiment can be set on the outside of the drive shaft 2, which is prone to axle breakage, with the arc-shaped support plate 7 located below the drive shaft 2, the connecting plate 6 located on the front and rear sides of the drive shaft 2, and the frame mounting plate 4 connected to the bottom of the frame 1. This provides safety restriction for the drive shaft 2, ensuring that the rotation radius cannot be expanded after the drive shaft 2 breaks, and only small-scale damage can be caused, thereby ensuring the safe use of surrounding equipment. At the same time, it can also ensure that the broken drive shaft 2 does not touch the ground, effectively preventing vehicle rollover accidents caused by this.

[0028] Example 2

[0029] like Figure 2 , Figure 3 As shown, this second embodiment provides a first type of auxiliary safety frame for the drive shaft of a dump truck. The difference from the first embodiment is that an airbag 8 is installed on the inner arc surface of the arc-shaped support plate 7 and / or the inner side of the connecting plate 6. The airbag 8 has a vent 9, and the vent 9 is preferably located on the side of the airbag 8 that is unlikely to come into contact with the drive shaft 2, the arc-shaped support plate 7, or the connecting plate 6. An airflow sensor 12 and a silicone plug 10 are installed sequentially from the outside to the inside of the vent 9. The silicone plug 10 is used to change the ventilation state of the vent 9, and the silicone plug 10 is cap-shaped. The top of the silicone plug 10 is a convex arc surface 11, and the top of the convex arc surface 11 has a cross-shaped cut 14. The airflow sensor 12 is used to detect whether there is airflow overflow at the vent 9, and it can be a commercially available hot-film airflow sensor 12, an anemometer, etc. Furthermore, in order to prevent the airflow sensor 12 from being affected by the airflow during vehicle operation, in this embodiment, a protective cover 13 is provided on the outside of the vent 9, and the airflow sensor 12 and the silicone plug 10 are placed inside the protective cover 13, thereby effectively preventing the airflow sensor 12 from being interfered with by the protective cover 13.

[0030] At this time, since the second embodiment uses a silicone plug 10 similar to a duckbill valve at the air vent 9 of the airbag 8, under normal operating conditions, the airbag 8 does not contact the drive shaft 2, and the gas inside the airbag 8 cannot escape; conversely, if the drive shaft 2 breaks, the drive shaft 2 will contact the airbag 8 after expanding the rotation space and squeeze the airbag 8, thereby pushing the cut 14 at the inner end of the silicone plug 10 outward and causing the airflow to escape. At this time, the airflow sensor 12 will detect the airflow and transmit an electrical signal to the controller it is connected to. In this way, the dump truck can realize the alarm function through the cooperation of the controller and the corresponding alarm system, thereby ensuring that the driver can receive the fault information in a timely manner.

[0031] Example 3

[0032] like Figure 4As shown, this embodiment three provides a dump truck, which includes a frame 1. A drive shaft 2 is arranged below the frame 1. In this embodiment three, at the drive shaft 2, which is prone to shaft breakage, a dump truck drive shaft auxiliary safety frame 3 as described in embodiment one is also installed below the frame 1. The arc-shaped support plate 7 of the dump truck drive shaft auxiliary safety frame 3 is arranged below the drive shaft 2. The two connecting plates 6 of the dump truck drive shaft auxiliary safety frame 3 are respectively arranged on the front and rear sides of the drive shaft 2. The frame mounting plate 4 of the dump truck drive shaft auxiliary safety frame 3 is detachably connected to the bottom of the frame 1.

[0033] Specifically, in this third embodiment, a connecting hole is provided at the bottom of the frame 1, corresponding to the position of the drive shaft 2, which is prone to breakage. Bolts are then threaded through the mounting holes 5 and connecting holes of the frame mounting plate 4, followed by two nuts. This third embodiment not only allows for a detachable connection between the frame mounting plate 4 and the frame 1, but also effectively enhances the stability of the connection between the safety frame and the frame 1 through the mutual locking effect of the double-nut fastening structure. This prevents the safety frame from falling off due to loosening of the nuts, even under conditions of long-term bumping, vibration, or impact loads on the dump truck, ensuring reliable restraint of the drive shaft 2.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not 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. An auxiliary safety frame for the drive shaft of a dump truck, characterized in that, It includes an arc-shaped support plate (7), with the inner arc surface of the arc-shaped support plate (7) facing upward; each end of the arc-shaped support plate (7) is connected to a connecting plate (6), and the upper end of each of the two connecting plates (6) is connected to a frame mounting plate (4). The frame mounting plate (4) is located above the arc-shaped support plate (7) and is provided with a frame mounting part (15).

2. The auxiliary safety frame for the drive shaft of a dump truck according to claim 1, characterized in that, The connecting plate (6) and the arc-shaped support plate (7) are a single piece.

3. The auxiliary safety frame for the drive shaft of a dump truck according to claim 1 or 2, characterized in that, The included angle between the two connecting plates (6) is an acute angle.

4. The auxiliary safety frame for the drive shaft of a dump truck according to claim 1 or 2, characterized in that, Both connecting plates (6) are set vertically.

5. The auxiliary safety frame for the drive shaft of a dump truck according to claim 1 or 2, characterized in that, The frame mounting plate (4) is welded to the connecting plate (6), and the frame mounting part (15) includes a mounting hole (5) through the surface of the frame mounting plate (4).

6. The auxiliary safety frame for the drive shaft of a dump truck according to claim 5, characterized in that, The frame mounting plate (4) is an L-shaped plate, and the connecting plate (6) is located within the angle between the vertical section and the horizontal section of the frame mounting plate (4). The vertical section and the horizontal section of the frame mounting plate (4) are both perforated with mounting holes (5).

7. The auxiliary safety frame for the drive shaft of a dump truck according to claim 1 or 2, characterized in that, An airbag (8) is installed on the inner arc surface of the arc support plate (7) and / or the inner side of the connecting plate (6). The airbag (8) is provided with an air vent (9). An airflow sensor (12) and a silicone plug (10) are installed at the air vent (9) from the outside to the inside. The silicone plug (10) is set in the shape of a cap. The top of the silicone plug (10) is set as an outwardly convex arc surface (11). The top of the outwardly convex arc surface (11) is provided with a cut (14).

8. The auxiliary safety frame for the drive shaft of a dump truck according to claim 7, characterized in that, The outer cover of the vent (9) is provided with a protective cover (13), and the airflow sensor (12) and silicone plug (10) are located inside the protective cover (13).

9. A dump truck, comprising a frame (1), wherein a drive shaft (2) is disposed below the frame (1); characterized in that, The lower part of the frame (1) is also equipped with a dump truck drive shaft auxiliary safety frame according to any one of claims 1-8. The arc-shaped support plate (7) of the dump truck drive shaft auxiliary safety frame is set below the drive shaft (2). The two connecting plates (6) of the dump truck drive shaft auxiliary safety frame are respectively set on the front and rear sides of the drive shaft (2). The frame mounting plate (4) of the dump truck drive shaft auxiliary safety frame is detachably connected to the bottom of the frame (1).

10. The dump truck according to claim 9, characterized in that, The bottom of the frame (1) has a connecting hole, and the bolt passes through the frame mounting plate (4) and the connecting hole in sequence, and then has two nuts connected by threads.

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