Rear protection device of mining dump truck

Abstract

The utility model belongs to the technical field of dumper protection, and particularly relates to a rear protection device of a mining dumper, which comprises a side plate, a circular tube, a connecting plate and a reinforcing structure. According to the utility model, the side plates and the side surfaces of the frame are attached and positioned, so that the mounting portability is improved, the disassembly and assembly time is shortened, and the maintenance difficulty and cost are reduced; on the premise that the structural strength is guaranteed, the structural simplicity is improved, and the overall weight is reduced, so that the additional burden of the vehicle is reduced; the vehicle axle air chamber can be effectively prevented from being stabbed after being impacted, and stress can be better absorbed and dispersed when the vehicle axle air chamber is impacted, so that the impact resistance is improved; the overall rigidity and stability are high, stress concentration of a local area is avoided, and local deformation or damage is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dump truck protection, and particularly relates to a rear protection device for a mine dump truck. BACKGROUND

[0002] The mine dump truck is a key equipment for open-pit mine transportation and plays an important role in heavy-load transportation of ores and earthwork. However, the discharge area of the mine dump truck has particularity, and a dump wall or a soil retaining structure is usually arranged in the discharge area, which mainly concentrates the materials and prevents the materials from scattering.

[0003] In actual operation, the mine dump truck needs to be reversed to approach the dump wall when discharging, and in this process, the air chamber of the vehicle bridge is easily impacted. Meanwhile, when the cargo box lifts and dumps the materials, the air chamber of the vehicle bridge is also easily damaged due to the gravity of the materials and the impact force in the discharging process. Frequent damage of the air chamber of the vehicle bridge not only increases the maintenance cost, but also affects the normal operation efficiency of the mine dump truck and reduces the production efficiency, so the rear protection device needs to be added.

[0004] At present, the rear protection device of the traditional mine dump truck is mostly made of channel steel structure, which improves the overall strength and ensures the protection effect, but still has the following defects:

[0005] The structure is relatively complex, the installation process is cumbersome, the overall weight is large, and the additional burden of the vehicle is increased; in addition, the corner structure of the channel steel has the risk of scratching the air chamber of the vehicle bridge after being impacted, and cannot disperse the impact force when reversing and impacting the dump wall, which easily causes direct damage to the air chamber of the vehicle bridge and causes brake system failures such as air chamber rupture and pipeline deformation. TECHNICAL PROBLEM

[0006] The utility model aims at providing a rear protection device for a mine dump truck, which solves the technical problems of the existing rear protection device, such as complex structure, cumbersome installation, large overall weight, easy scratching of the air chamber of the vehicle bridge, and inability to disperse the impact force when reversing.

[0007] The utility model discloses a rear protection device for a mine dump truck, which comprises:

[0008] Two side plates are oppositely installed on both sides of the rear end of the vehicle frame;

[0009] A plurality of round pipes are vertically and spacedly arranged below the vehicle frame and are transversely installed between the side plates;

[0010] A plurality of groups of connecting plates are correspondingly arranged between the round pipes, and each group of connecting plates has at least one and is transversely and spacedly arranged along the axis direction of the round pipe;

[0011] Two reinforcing structures are correspondingly arranged on the side plates.

[0012] The application can be positioned in close contact with the side of the vehicle frame during installation, thereby improving installation portability, shortening disassembly and assembly time, reducing maintenance difficulty and cost; under the premise of ensuring structural strength, the structural simplicity is improved, and the overall weight is reduced, thereby reducing the additional burden of the vehicle; the impact on the air chamber of the axle after impact can be effectively avoided, and stress can be better absorbed and dispersed when impacted, thereby improving the impact resistance; the overall rigidity and stability are high, stress concentration in local areas is avoided, and local deformation or damage is prevented.

[0013] On the basis of the above technical scheme, the scheme of the application can be improved as follows:

[0014] Preferably, the circular pipe is located on the radial inner side of the wheel in the horizontal direction, and the axis thereof is parallel to the rotation axis of the wheel; by adopting the scheme, when the vehicle retreats and collides with the dump wall, the tire is first brought into direct contact with the dump wall, thereby absorbing part of the impact energy and playing a preliminary buffering role, which can reduce the direct impact on the circular pipe and prolong its service life.

[0015] Preferably, the reinforcing structure comprises:

[0016] A plurality of first reinforcing ribs are transversely and spacedly arranged on the outer side of the side plate;

[0017] A plurality of second reinforcing ribs are transversely and spacedly arranged on the inner side of the side plate; by adopting the scheme, the side plate can be reinforced from the outer side and the inner side respectively, so that the side plate has better load-bearing capacity in each direction, can withstand greater external force without being damaged, and can distribute stress more evenly on the side plate, which helps to reduce fatigue damage and prolong the service life.

[0018] Preferably, the second reinforcing ribs are symmetrically arranged on both sides of the circular pipe; by adopting the scheme, the stress on the area near the circular pipe of the side plate is more uniform, thereby reducing stress concentration and improving the load-bearing capacity of the device.

[0019] Preferably, it comprises:

[0020] Two cross plates are correspondingly arranged on the inner side of the side plate, and the bottom surface is connected with the second reinforcing rib; by adopting the scheme, a longitudinal and transverse reinforcing network is formed, the strength and stability of the local and overall structure of the inner side of the side plate are enhanced, the force transmission path is optimized, the impact energy is dispersed, the damage risk of the device is reduced, positioning reference for installation is provided, the installation accuracy and reliability are ensured, and the installation portability is improved.

[0021] Preferably, the circular tube is arranged on the central axis of the side plate, and the width of the side plate gradually decreases from top to bottom; by this scheme, the stress distribution of the side plate is more balanced, the overall stability of the side plate under stress is enhanced, and the weight is reduced, which helps to disperse and guide external force, makes the stress more evenly transmitted, reduces the risk of local stress concentration, and improves the reliability and durability of the device.

[0022] Preferably, the lowermost circular tube portion is embedded in the bottom end face of the side plate; by this scheme, the connection stability of the circular tube and the side plate is enhanced, and the two are combined more closely, thereby effectively improving the structural strength of the bottom area of the device, and making the impact force more evenly dispersed to the entire structure, avoiding damage caused by excessive local stress.

[0023] Preferably, the upper and lower ends of the connecting plate are provided with arc-shaped clamping grooves matched with the circular tube; by this scheme, the connection is more stable and accurate, the integrity and stability are enhanced, the force transmission is more efficient and uniform, the impact force is more smoothly dispersed to the entire structure system, the damage risk caused by local stress concentration is reduced, and the accurate positioning for the installation of the circular tube is provided, and the production efficiency is improved.

[0024] Preferably, the side plate is an integral bent plate, comprising:

[0025] The vertical part is fitted with the side of the vehicle frame and is fixedly connected through a connecting piece;

[0026] The inclined part is formed by the inclined extension of the bottom end of the vertical part to the inside of the vehicle;

[0027] The circular tube is arranged between the inclined parts of the two side plates; by this scheme, stable installation is ensured, and the force generated when being impacted can be effectively transmitted to the vehicle frame, thereby enhancing the overall structural stability, and the two ends of the protection device are away from the tire, so as to avoid interference during vehicle driving.

[0028] Preferably, the connecting piece is a bolt, and a plurality of mounting holes matched with the bolt are arranged on the vertical part; by this scheme, the side plate and the vehicle frame can be quickly fixed, which is convenient for subsequent maintenance, and the connection is reliable, the connection points are increased by the arrangement of multiple mounting holes, the connection is more stable, the vibration and external impact can be effectively borne, the risk of loosening or falling off of the connection part is reduced, and the reliability of the protection device is ensured.

[0029] Through the above technical scheme, the following beneficial effects are achieved:

[0030] 1. The side plate is used as support, which can be positioned with the side of the frame during installation, thereby improving the installation portability, shortening the disassembly and assembly time, and reducing the maintenance difficulty and cost;

[0031] 2. The reinforcing structure is arranged on the side plate, which improves the structural simplicity and reduces the overall weight under the premise of ensuring the structural strength, thereby reducing the additional burden of the vehicle;

[0032] 3. The round pipe can effectively avoid scratching the air chamber of the axle after impact, and can better absorb and disperse stress when impacted, thereby improving the impact resistance;

[0033] 4. The combination of the side plate, the round pipe and the connecting plate makes the device have high overall rigidity and stability, avoids stress concentration in local areas, and prevents local deformation or damage. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 The structure diagram of the rear protection device of the mining dump truck is described in the specific embodiments of the present application.

[0036] Figure 2 For Figure 1 The installation diagram of the rear protection device of the mining dump truck is shown.

[0037] Explanation of reference signs:

[0038] 1, side plate; 2, round pipe; 3, connecting plate; 4, reinforcing structure; 5, horizontal plate;

[0039] 11, vertical part; 12, inclined part; 41, first reinforcing rib; 42, second reinforcing rib;

[0040] 301, arc-shaped clamping groove; 1101, mounting hole. DETAILED DESCRIPTION

[0041] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0042] First of all, it needs to be explained that in the following description for the sake of clearly illustrating the technical scheme of the utility model, some orientation words such as terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are analogically interpreted according to the orientation of the normal parts in the rear protection device of the mine dump truck, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0043] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, and therefore the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "mounting" and "connection" should be broadly understood, for example, can be fixed connection, can also be detachable connection, or integral connection, can be direct connection, or indirect connection through intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the description of the drawings and the specific embodiments.

[0046] Embodiment:

[0047] As shown in Figure 1 The utility model discloses a rear protection device of mine dump truck, installs in the rear of mine dump truck, compared with the traditional structure, its structure is simpler, and installation is convenient, and the overall weight is light, and can effectively avoid the scratch of the axle chamber after the impact, can also absorb or disperse the impact force generated when reversing and hitting the dump wall, thereby protecting the axle chamber, reducing the failure rate of the braking system, prolonging the service life of the axle and the key components of the braking system, reducing the spare parts replacement frequency, reducing the downtime maintenance time, mainly includes: side plate 1, round pipe 2, connecting plate 3 and reinforcing structure 4.

[0048] Two side plates 1 are oppositely installed on both sides of the rear end of the frame, used as a supporting structure, providing a mounting base for other components, and also capable of dispersing and bearing the impact force from the side, and the symmetrical design improves the balance and stability of the structure.

[0049] A plurality of round pipes 2 are vertically and spacedly arranged under the frame and transversely mounted between the side plates 1, which are used as main force bearing components to directly bear the impact force generated when the dump wall is hit by a reversing vehicle and transmit the impact force to the frame through the side plates 1, so as to protect the axle air chamber from being damaged, and the arrangement ensures the structural strength and reduces the overall weight.

[0050] Exemplarily, the round pipes 2 are provided in two numbers to balance the protection effect and the lightweight requirement, but are not limited thereto and can be in other numbers.

[0051] It should be noted that, compared with the traditional channel steel structure, the round pipe 2 has a smooth and angle-free shape, which can effectively avoid scratching the axle air chamber after impact and better absorb and disperse stress when impacted, thereby improving the impact resistance.

[0052] A plurality of groups of connecting plates 3 are correspondingly arranged between the round pipes 2, and each group of connecting plates 3 has at least one and is transversely and spacedly arranged along the axis direction of the round pipes 2, which are used to connect adjacent round pipes 2 to improve the overall rigidity and stability and help the round pipes 2 to jointly bear and disperse the impact force when impacted to prevent local deformation or damage.

[0053] Exemplarily, based on the two round pipes 2, the connecting plates 3 are provided in one group, and each group has one, which balances the reinforcement effect and the lightweight requirement; but are not limited thereto and each group can be in other numbers.

[0054] Two reinforcing structures 4 are correspondingly arranged on the side plates 1 to enhance the local strength and rigidity of the side plates 1, thereby improving the deformation resistance and preventing the side plates 1 from being bent or broken when subjected to a large impact force, so as to ensure the reliability and stability of the device during long-term use.

[0055] The above technical scheme has the following technical effects:

[0056] I. The side plates 1 are used as supports, which can be positioned with the side surface of the frame during installation, thereby improving the installation portability, shortening the disassembly and assembly time, and reducing the maintenance difficulty and cost;

[0057] II. The reinforcing structures 4 are arranged on the side plates 1, which improve the structural simplicity and reduce the overall weight under the premise of ensuring the structural strength, thereby reducing the additional burden of the vehicle;

[0058] III. The smooth structure of the round pipes 2 can effectively avoid scratching the axle air chamber after impact and better absorb and disperse stress when impacted, thereby improving the impact resistance;

[0059] Four, the combination design of the side plate 1, the circular tube 2 and the connecting plate 3 makes the device have high overall rigidity and stability, avoids stress concentration in local areas, and prevents local deformation or damage.

[0060] In some embodiments, as shown in Figure 1 and Figure 2 The circular tube 2 is located on the inner side of the wheel in the horizontal direction, and the axis thereof is parallel to the rotation axis of the wheel.

[0061] Through the above design, when the vehicle collides with the dump wall in reverse, the tire first makes direct contact with the dump wall, thereby absorbing part of the impact energy, playing a preliminary buffering role, reducing the direct impact on the circular tube 2, and prolonging the service life of the circular tube 2.

[0062] In some embodiments, as shown in Figure 1 and Figure 2 The reinforcing structure 4 includes a plurality of first reinforcing ribs 41 and a plurality of second reinforcing ribs 42; wherein the plurality of first reinforcing ribs 41 are transversely spaced on the outer side of the side plate 1, and the plurality of second reinforcing ribs 42 are transversely spaced on the inner side of the side plate 1.

[0063] Through the above design, the outer side and the inner side of the side plate 1 can be respectively reinforced, and the two sides cooperate with each other to make the side plate 1 have better load-carrying capacity in all directions, can withstand greater external force without damage, and can more evenly distribute stress on the side plate 1, which helps to reduce fatigue damage of the side plate 1 and prolong the service life.

[0064] On the basis of the above embodiments, as shown in Figure 1 The second reinforcing ribs 42 are symmetrically arranged on both sides of the circular tube 2, which makes the stress of the side plate 1 in the area near the circular tube 2 more uniform, thereby reducing stress concentration and improving the load-carrying capacity of the device.

[0065] On the basis of the above embodiments, as shown in Figure 1 It includes two cross plates 5, which are respectively arranged on the inner side of the side plate 1 and connected with the second reinforcing ribs 42 at the bottom surface.

[0066] It should be noted that the cross plate 5 increases the structural strength of the inner side of the side plate 1 in the horizontal direction, and forms a longitudinal and transverse reinforcing grid through the connection with the second reinforcing ribs 42, thereby further improving the bending and torsional resistance of the side plate 1 as a whole.

[0067] It should be noted that after installation, the cross plate 5 is attached to the bottom surface of the vehicle frame; thus, when the protection device is subjected to impact force, the force can be transmitted to the vehicle frame not only through the side plate 1 but also through the cross plate 5, which makes the force more evenly distributed in the vehicle structure, avoids excessive local stress, and thereby improves the stability of the overall rear structure of the vehicle.

[0068] It should be noted that the transverse plate 5 also provides a positioning reference for the installation of the protection device; during installation, by accurately fitting the transverse plate 5 on the bottom surface of the vehicle frame, the installation position of the protection device can be ensured to be accurate, thereby improving the portability of installation.

[0069] By setting the transverse plate 5, a longitudinal and transverse reinforcement network is formed with the second reinforcing rib 42, enhancing the strength and stability of the local and overall structure of the inner side of the side plate 1, optimizing the force transmission path, dispersing impact energy, reducing the risk of damage to the device, and providing a positioning reference for installation, ensuring installation accuracy and reliability, and improving the portability of installation.

[0070] In some embodiments, as shown in Figure 1 The circular tube 2 is arranged on the central axis of the side plate 1, which makes the stress distribution of the side plate 1 more balanced, thereby enhancing the overall stability of the side plate 1 when under stress, making the protection device more stable in response to external force impact; the width of the side plate 1 gradually decreases from top to bottom, thereby reducing the weight to some extent, and this shape helps to disperse and guide external forces, making the stress more evenly transmitted, reducing the risk of local stress concentration, and further improving the reliability and durability of the protection device.

[0071] In some embodiments, as shown in Figure 1 The lowermost circular tube 2 is partially embedded in the bottom end surface of the side plate 1 and can be fixed by welding.

[0072] Through the above arrangement, the connection stability of the circular tube 2 and the side plate 1 is enhanced, making them more closely combined, thereby effectively improving the structural strength of the bottom area of the device, and making the impact force more evenly dispersed to the entire structure, avoiding damage caused by excessive local stress.

[0073] In some embodiments, as shown in Figure 1 The upper and lower ends of the connecting plate 3 are provided with arc-shaped clamping grooves 301 adapted to the circular tube 2.

[0074] Through the above arrangement, the connection between the connecting plate 3 and the circular tube 2 is more stable and accurate, enhancing the integrity and stability, ensuring more efficient and uniform force transmission between the connecting plate 3 and the circular tube 2, making the impact force more smoothly dispersed to the entire structure system, reducing the risk of damage caused by local stress concentration; and also provides accurate positioning for the installation of the circular tube 2, improving production efficiency.

[0075] In some embodiments, as shown in Figure 1 The side plate 1 is an integrated bent plate, including:

[0076] The vertical part 11 is connected with the side of the frame through the connecting piece, which not only ensures the stable installation of the side plate 1 and the frame, but also effectively transmits the impact force to the frame, thereby enhancing the stability of the whole structure.

[0077] The inclined part 12 is formed by the bottom end of the vertical part 11 extending to the vehicle inner side direction, and the circular tube 2 is arranged between the inclined parts 12 of the two side plates 1, so as to make the two ends of the protection device away from the tire, thereby avoiding the interference of the tire during the driving of the vehicle.

[0078] Based on the above embodiment, as shown in the drawings, the connecting piece is a bolt, and a plurality of mounting holes 1101 matched with the bolt are arranged on the vertical part 11. Figure 1

[0079] Through the above arrangement, the side plate 1 and the frame can be quickly fixed, which is convenient to install, beneficial to subsequent maintenance, and reliable in connection. The connection is more stable through the arrangement of the multiple mounting holes 1101, which can effectively withstand vibration and external force impact, reduces the risk of loosening or falling off of the connection part, and ensures the reliability of the protection device.

[0080] The working process of the above technical solution is as follows:

[0081] When the mine dump truck unloads, the vehicle reverses and hits the dump wall, and the tire first contacts the dump wall, so that the tire can first absorb and disperse part of the impact force generated when the vehicle hits the dump wall. Then, the circular tube 2 in the protection device is impacted, and the impact force is transmitted to the frame through the side plate 1 and the horizontal plate 5, thereby avoiding the direct effect of the impact on the axle chamber.

[0082] When the cargo box lifts and dumps the material, the rear protection device can also buffer the impact of the material and the influence of the cargo box shaking on the axle chamber, thereby protecting the axle chamber from being damaged.

[0083] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail, so as not to obscure the understanding of the specification.

[0084] ​In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0085] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A rear protection device for a mining dump truck, characterized in that, The utility model relates to a vehicle frame structure, comprising: two side plates, oppositely mounted on both sides of the rear end of the frame; a plurality of round tubes, vertically and spacedly arranged below the frame and transversely mounted between the side plates; a plurality of groups of connecting plates, each corresponding to the arrangement between the round tubes, and each group of connecting plates having at least one and being transversely and spacedly arranged along the axis direction of the round tubes; two reinforcing structures, each corresponding to the arrangement on the side plate.

2. The rear guard of a mining dump truck according to claim 1, characterized in that, The round tubes are located radially inside the wheels along the horizontal direction, and their axes are parallel to the rotation axis of the wheels.

3. The rear guard of a mining dump truck according to claim 1, characterized in that, The reinforcing structure comprises: a plurality of first reinforcing ribs, transversely and spacedly arranged outside the side plate; a plurality of second reinforcing ribs, transversely and spacedly arranged inside the side plate.

4. The rear guard of a mining dump truck according to claim 3, characterized in that, The second reinforcing ribs are symmetrically arranged on both sides of the round tubes.

5. The rear guard of a mining dump truck according to claim 3, characterized in that, The utility model further comprises: two cross plates, each corresponding to the arrangement inside the side plate, and the bottom surface being connected with the second reinforcing rib.

6. The rear guard of a mining dump truck according to claim 1, characterized in that, The round tubes are arranged on the central axis of the side plate, and the width of the side plate gradually decreases from top to bottom.

7. The rear guard of a mining dump truck according to claim 1, characterized in that, The lowermost round tube is partially embedded in the bottom end surface of the side plate.

8. The rear guard of a mining dump truck according to claim 1, characterized in that, The upper and lower ends of the connecting plate are provided with arc-shaped clamping grooves matched with the round tubes.

9. The rear guard of a mining dump truck according to claim 1, characterized in that, The side plate is an integral bending plate, comprising: a vertical part, the upper half of which is fitted with the side surface of the frame and is fixedly connected through a connecting piece; an inclined part, which is formed by the inclined extension of the bottom end of the vertical part to the inside of the vehicle; wherein the round tubes are arranged between the inclined parts of the two side plates.

10. The rear guard of a mining dump truck according to claim 9, characterized in that, The connecting piece is a bolt, and a plurality of mounting holes matched with the bolt are formed on the vertical part.

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