Stone knockout device of mining dump truck and mining dump truck

Abstract

The utility model discloses a stone knockout device of a mining dump truck and the mining dump truck, and relates to the technical field of engineering vehicles. The stone knockout device of the mining dump truck comprises a support, wherein the upper end of the support is of a concave arc-shaped structure and is used for being connected with the cambered surface of the bottom of a cargo compartment in a welded mode; and one end of the stone beating plate is rotationally connected with the support, and the other end of the stone beating plate is arranged in a gap between two tires of the double-tire parallel loading wheel. The connecting structure of the support and the bottom of the cargo compartment can reduce the situation of stress concentration at the welding position, the cargo compartment can share part of stress, when the stone beating plate bears large stone beating force, the connecting structure can reduce the risk of weld joint cracking at the welding position, and the service life of the stone beating plate is prolonged. And the risks of weld joint cracking and structural deformation faced by the support can be reduced. The mining dump truck adopts the cargo compartment of the U-shaped structure, and compared with a traditional cargo compartment of a rectangular structure, the cargo compartment of the U-shaped structure has better mechanical performance.

Description

Technical Field

[0001] The present application relates to the technical field of engineering vehicles, and in particular to a stone breaker for a mining dump truck and a mining dump truck. Background Art

[0002] When operating in mining environments, rocks often become lodged in the tire gaps of mining dump trucks, impacting vehicle safety and efficiency. The stone breaker removes these lodged rocks, and its structure plays a crucial role in the overall performance of mining dump trucks. Currently, the stone breaker is welded to the bottom of the rectangular cargo box via its support, similar to a lifting lug. This structure presents several potential risks: Due to the rectangular shape of the cargo box, the weld between the cargo box bottom and the stone breaker support is susceptible to stress concentration. When the stone breaker is subjected to the high rock-breaking forces during operation, the weld at this location is prone to cracking. Furthermore, the stone breaker support itself faces the risk of weld cracking and structural deformation. These risks could damage not only the stone breaker but also the entire cargo box structure, compromising the overall performance and safety of the mining dump truck. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a mining dump truck stonebreaker and a mining dump truck to solve at least one of the above technical problems.

[0004] In the first aspect, the present application provides a stone breaker for a mining dump truck, comprising: a support, the upper end of which is a concave arc structure and is used for welding and connecting to the arc surface of the bottom of the cargo compartment; a stone breaker plate, one end of which is rotatably connected to the support, and the other end of which is used to be set in the gap between the two tires of a dual-tire wheel.

[0005] In combination with the first aspect, in some optional embodiments, the support includes a first plate body, a second plate body, and a plurality of connecting plates. The first plate body and the second plate body are arranged opposite to each other and the height of the second plate body is less than the height of the first plate body. The upper part of the first plate body and the upper part of the second plate body are bent in opposite directions respectively. The lower part of the first plate body and the lower part of the second plate body are rotatably connected to one end of the stone slab through a pin shaft. Multiple connecting plates are connected between the first plate body and the second plate body. The upper end edge of each connecting plate is concave arc-shaped and tangent to the upper plate surface of the first plate body. The upper end edges of the multiple connecting plates constitute a concave arc structure.

[0006] In combination with the first aspect, in some optional embodiments, the upper portion of the first plate body is bent into an arc shape in a direction away from the second plate body, and the upper portion of the second plate body is bent 90° in a direction away from the first plate body.

[0007] In combination with the first aspect, in some optional embodiments, the support further includes a reinforcing plate, and the reinforcing plate is provided on the first plate body, the second plate body, and at least one of the plurality of connecting plates.

[0008] In combination with the first aspect, in some optional embodiments, the reinforcing plate includes a first reinforcing plate and a second reinforcing plate, the first reinforcing plate is installed on the lower part of the first plate body to increase the structural strength of the first plate body at the connection with the pin shaft, and the second reinforcing plate is installed on the lower part of the second plate body to increase the structural strength of the second plate body at the connection with the pin shaft.

[0009] In combination with the first aspect, in some optional embodiments, the support further includes a stopper, which is installed at the lower end of the connecting plate located at the outermost side and is used to limit the rotation angle of the stone slab.

[0010] In combination with the first aspect, in some optional embodiments, the stone breaker for a mining dump truck further includes: a pin assembly, and one end of the stone breaker plate is rotatably connected to the support through the pin assembly.

[0011] In combination with the first aspect, in some optional embodiments, the pin assembly includes a pin and an anti-slip component, the pin is passed through one end of the slab and the support, and the anti-slip component is installed on the pin to prevent the pin from falling off.

[0012] In combination with the first aspect, in some optional embodiments, the pin assembly further includes a plurality of gaskets, which are sleeved on the pin and used to adjust the position of one end of the stone slab on the pin.

[0013] In the second aspect, the present application provides a mining dump truck, comprising: a cargo compartment, which is a U-shaped structure with curved corners on the bottom; dual-tire wheels; and a mining dump truck stonebreaker in any one of the embodiments of the first aspect above, wherein the concave arc structure at the upper end of the support of the mining dump truck stonebreaker is welded to the curved surface at the bottom of the cargo compartment, and the other end of the stone-breaking plate is arranged in the gap between the two tires of the dual-tire wheels.

[0014] Based on the above technical solution, the present application provides a mining dump truck stone breaker and a mining dump truck. The upper end of the support of the mining dump truck stone breaker is a concave arc structure, which is welded to the arc surface of the bottom of the cargo compartment during installation and use. This connection structure can reduce stress concentration at the welding position, and the cargo compartment can share part of the force. When the stone breaker is subjected to a large stone-breaking force, this connection structure can reduce the risk of weld cracking at the welding position, and can reduce the risk of weld cracking and structural deformation faced by the support itself. The mining dump truck adopts a U-shaped cargo compartment. Compared with the traditional rectangular cargo compartment, the U-shaped cargo compartment has better mechanical properties, uniform force and fewer sharp corners, which reduces stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of a stone chipper for a mining dump truck provided in an embodiment of the present application.

[0017] Figure 2 A schematic structural diagram of the support provided in an embodiment of the present application from one perspective.

[0018] Figure 3 A schematic structural diagram of the support provided in an embodiment of the present application from another perspective.

[0019] Figure 4 This is a rear view of the mining dump truck provided in an embodiment of the present application.

[0020] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0021] Figure 6 A side view of the stone breaker and cargo compartment of a mining dump truck provided in an embodiment of the present application.

[0022] Figure numerals: 100, stone breaker for mining dump truck; 10, support; 11, first plate body; 12, second plate body; 13, first connecting plate; 14, second connecting plate; 15, first reinforcing plate; 151, third circular hole; 16, second reinforcing plate; 161, fourth circular hole; 17, stopper; 20, stone breaker; 30, pin assembly; 31, pin; 32, anti-slip part; 33, gasket; 200, cargo compartment; 201, longitudinal beam; 202, cross beam; 300, double-tire and parallel-mounted wheels. DETAILED DESCRIPTION

[0023] Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only a portion of the embodiments of the present application, and not all of the embodiments. All other embodiments derived by persons of ordinary skill in the art based on the description of this application without inventive effort are intended to fall within the scope of protection of this application.

[0024] In the description of the application, unless otherwise explicitly specified and limited, the terms "connection", "arrangement", "installation" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] The terms "upper", "lower", "left", "right", "front", "back", "center", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0026] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and do not indicate or imply relative importance or a particular order, unless otherwise explicitly specified and limited.

[0027] The terms "include", "contain", "have" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0028] The term "a plurality of" means two or more (including two).

[0029] The term "and / or" is a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone.

[0030] The terms "one embodiment," "as an example," "in one implementation," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example may be included in at least one embodiment or example of the present application. The schematic representations of such terms do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. The embodiments and features within the embodiments of the present application may be combined in appropriate ways unless there is a conflict.

[0031] Figure 1 The structural diagram of the mining dump truck stone breaker 100 provided in the embodiment of the present application is as follows: Figure 1 As shown, the present invention provides a stone breaker 100 for a mining dump truck, comprising a support 10, a stone breaker plate 20, and a pin assembly 30. The upper end of the support 10 is a concave arc-shaped structure and is welded to the curved surface of the bottom of the cargo compartment 200. One end of the stone breaker plate 20 is rotatably connected to the support 10 via the pin assembly 30. The other end of the stone breaker plate 20 is positioned in the gap between the two tires of a dual-tire wheel 300.

[0032] Figure 2 and Figure 3 The structural diagram of the support 10 provided in the embodiment of the present application from different perspectives is as follows Figure 2 and Figure 3 As shown, the support 10 includes a first plate body 11 , a second plate body 12 , a plurality of connecting plates, at least one reinforcing plate, and a stopper 17 .

[0033] The first plate 11 and the second plate 12 are arranged vertically opposite each other, with the second plate 12 being shorter than the first plate 11. The upper portions of the first plate 11 and the upper portions of the second plate 12 are bent in opposite directions. The lower portion of the first plate 11 is provided with a first circular hole (not shown in the figure), and the lower portion of the second plate 12 is provided with a second circular hole (not shown in the figure) corresponding to the first circular hole. The first and second circular holes are used to mount the pin 31.

[0034] As an example, the upper part of the first plate body 11 is bent into an arc shape in the direction away from the second plate body 12; the upper part of the second plate body 12 is bent 90° in the direction away from the first plate body 11; the lower end of the first plate body 11 is flush with the lower end of the second plate body 12, and the height of the second plate body 12 is slightly less than half the height of the first plate body 11.

[0035] Multiple connecting plates are connected between the first plate body 11 and the second plate body 12. The upper edge of each connecting plate is concave arc-shaped and tangent to the upper plate surface of the first plate body 11. The upper edges of the multiple connecting plates as a whole form a concave arc structure, which is used for welding connection with the bottom of the cargo compartment 200.

[0036] As an example, the plurality of connecting plates include a first connecting plate 13 and a second connecting plate 14, the first connecting plate 13 and the second connecting plate 14 are parallel to and perpendicular to the plate surfaces of the first plate body 11 and the second plate body 12, the upper ends of the first connecting plate 13 and the second connecting plate 14 are higher than the second plate body 12 and extend to the upper part of the first plate body 11, the lower ends of the first connecting plate 13 and the second connecting plate 14 are arranged between the lower part of the first plate body 11 and the lower part of the second plate body 12, one side edge of the first connecting plate 13 and the second connecting plate 14 are welded to the plate surface of the first plate body 11, the lower parts of the other side edges of the first connecting plate 13 and the second connecting plate 14 are welded to the plate surface of the second plate body 12, and the upper parts of the other side edges of the first connecting plate 13 and the second connecting plate 14 are used to connect with the bottom longitudinal beam 201 of the cargo compartment 200 (see Figure 5 ) side weld connections.

[0037] The reinforcing plates are mainly provided on the first plate body 11 and the second plate body 12 to increase the structural strength of the first plate body 11 and the second plate body 12 .

[0038] As an example, the reinforcing plate includes a first reinforcing plate 15 and a second reinforcing plate 16. The first reinforcing plate 15 is welded to the lower portion of the side surface of the first plate body 11 facing away from the second plate body 12, and is used to increase the structural strength of the connection between the first plate body 11 and the pin 31. The first reinforcing plate 15 is provided with a third circular hole 151 corresponding to the first circular hole, and the third circular hole 151 is used for the pin 31 to pass through. The second reinforcing plate 16 is welded to the lower portion of the side surface of the second plate body 12 facing away from the first plate body 11, and is used to increase the structural strength of the connection between the second plate body 12 and the pin 31. The second reinforcing plate 16 is provided with a fourth circular hole 161 corresponding to the second circular hole, and the fourth circular hole 161 is used for the pin 31 to pass through.

[0039] It is understandable that the reinforcing plate may also be provided on other parts of the first plate body 11 and the second plate body 12 , and may also be provided on the connecting plate when necessary.

[0040] The stopper 17 is provided at the lower end of a connecting plate located at the outermost side, and is used to limit the rotation angle of the stone-beating plate 20 to prevent the stone-beating plate 20 from excessively rotating.

[0041] As an example, the stopper 17 is arranged at the lower end of the second connecting plate 14 and is welded to the second connecting plate 14, the first plate body 11 and the second plate body 12. The position where the support 10 is connected to the bottom of the cargo compartment 200 is as shown in FIG. Figure 4 and Figure 5 As shown, the second connecting plate 14 is arranged in the rear direction of the cargo compartment 200, and the stopper 17 is used to limit the rotation angle of the stone slab 20 in the rear direction of the vehicle.

[0042] The angle formed between the stopper 17 and the second connecting plate 14 affects the rotation angle of the stone breaker 20 toward the rear of the vehicle. Specifically, the smaller the angle, the greater the rotation angle of the stone breaker 20 toward the rear of the vehicle. Conversely, the larger the angle, the smaller the rotation angle of the stone breaker 20 toward the rear of the vehicle. Furthermore, the angle between the stopper 17 and the second connecting plate 14 can be determined based on the environment and usage of different mining areas before the stopper 17 is welded and fixed. This improves the specificity and adaptability of the stone breaker 100 for mining dump trucks.

[0043] The slab 20 is a long, straight plate with a fifth circular hole (not shown) at one end for the pin 31 to pass through. The length of the slab 20 must not be higher than the rims of the dual-tire wheels 300 when the cargo box 200 is unloaded, and must not be lower than the rims of the dual-tire wheels 300 when the cargo box 200 is fully loaded. This can be determined by calculating the change in distance between the cargo box 200 and the wheel rims when fully loaded and empty through CAE simulation analysis and actual data surveys.

[0044] The pin assembly 30 connects the stone slab 20 to the support 10 in a rotatable manner. Figure 1 As shown, the pin assembly 30 includes a pin 31 and an anti-slip component 32. The pin 31 is inserted into the corresponding circular holes of the first plate body 11, the second plate body 12, the slate 20, the first reinforcing plate 15 and the second reinforcing plate 16. The anti-slip component 32 is installed in the pin hole radially opened at the tail end of the pin 31. The anti-slip component 32 can effectively prevent the pin 31 from falling off due to vibration or other external forces during long-term use, thereby ensuring the stability and safety of the slate 20.

[0045] As an example, the pin 31 uses a standard part, which can improve the consistency of the product, improve the overall strength of the pin assembly 30, and avoid defects in the original customized casting pin due to inadequate control during machining and heat treatment; the tail end of the pin 31 passes through the corresponding circular holes of the second reinforcing plate 16, the second plate body 12, the stone plate 20, the first plate body 11 and the first reinforcing plate 15 in sequence; the anti-slip part 32 is a cotter pin.

[0046] The pin assembly 30 may also include several shims 33. These shims 33 are mounted on the pin 31 and can be positioned between the first reinforcing plate 15 and the anti-slip member 32, between the first plate 11 and the second plate 12, and between the tip of the pin 31 and the second reinforcing plate 16. By increasing or decreasing the number of shims 33 between the first plate 11 and the second plate 12, the position of one end of the stone-beating plate 20 on the pin 31 can be adjusted, allowing the stone-beating plate 20 to be precisely positioned above the gap between the two tires of the dual-tire wheel 300, achieving optimal stone-beating performance.

[0047] Figure 4This is a rear view of a mining dump truck provided in an embodiment of the present application. Figure 5 for Figure 4 A partial enlarged view of point A in the middle. Figure 6 This is a side view of the stone breaking device and cargo compartment of a mining dump truck provided in an embodiment of the present application. Figures 4 to 6 As shown, the embodiment of the present application further provides a mining dump truck, which mainly includes the above-mentioned mining dump truck stonebreaker 100, a cargo compartment 200, and dual-tire wheels 300.

[0048] The cargo compartment 200 is a U-shaped structure with large R-angle arc corners at the bottom. Compared with the traditional rectangular cargo compartment, the U-shaped cargo compartment 200 has better mechanical properties. The cargo compartment 200 is evenly stressed and has fewer corners, reducing stress concentration.

[0049] In the mining dump truck stone breaker 100, the concave arc structure at the upper end of the support 10, i.e., the upper edge of the multiple connecting plates, is welded to the arc surface at the bottom of the cargo compartment 200. The upper portion of the side edge of the multiple connecting plates connected to the second plate body is also welded to the side of the longitudinal beam 201 at the bottom of the cargo compartment 200. Figure 5 The welding position between the support 10 and the bottom of the cargo box 200 is blocked by the bottom crossbeam 202 of the cargo box 200. One end of the slate 20 is rotatably connected to the support 10 through a pin assembly 30, and the other end of the slate 20 is set in the gap between the two tires of the dual-tire and parallel wheel 300.

[0050] Because support 10 is welded to the curved surface at the bottom of concavely curved cargo box 200, this connection reduces stress concentration at the weld when stone slab 20 is subjected to rock impact forces, allowing cargo box 200 to share some of the stress. This connection reduces the risk of weld cracking at these welds when stone slab 20 is subjected to significant rock impact forces, and also reduces the risk of weld cracking and structural deformation faced by support 10 itself.

[0051] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the field can easily think of various changes or replacements within the technical scope disclosed in the present application, which should all be included in the scope of protection of the present application.

Claims

1. A stone-breaking tool for a mining dump truck, characterized in that: include: A support, the upper end of which is a concave arc-shaped structure and is used for welding to the arc surface of the bottom of the cargo compartment; a slab, one end of which is rotatably connected to the support, and the other end of which is arranged in the gap between the two tires of the dual-tire wheel; Wherein, a stopper is provided on the support, and the stopper is used to limit the rotation angle of the stone slab.

2. The stone breaker for a mining dump truck according to claim 1, characterized in that: The support includes a first plate body, a second plate body, and a plurality of connecting plates. The first plate and the second plate are arranged opposite to each other, and the height of the second plate is smaller than that of the first plate. The upper portion of the first plate and the upper portion of the second plate are bent in opposite directions respectively. The lower portion of the first plate and the lower portion of the second plate are rotatably connected to one end of the slab via a pin. The plurality of connecting plates are connected between the first plate body and the second plate body, the upper edge of each connecting plate is concave arc-shaped and tangent to the upper plate surface of the first plate body, and the upper edges of the plurality of connecting plates form the concave arc-shaped structure; The stopper is mounted on the lower end of the connecting plate located at the outermost side.

3. The stone breaker for a mining dump truck according to claim 2, characterized in that: The upper portion of the first plate body is bent into an arc shape in a direction facing away from the second plate body, and the upper portion of the second plate body is bent 90° in a direction facing away from the first plate body.

4. The stone breaking tool for a mining dump truck according to claim 2, characterized in that: The support further includes a reinforcing plate, and the reinforcing plate is provided on the first plate body, the second plate body, and at least one of the plurality of connecting plates.

5. The stone breaker for a mining dump truck according to claim 4, characterized in that: The reinforcing plate includes a first reinforcing plate and a second reinforcing plate. The first reinforcing plate is installed on the lower part of the first plate body to increase the structural strength of the first plate body at the connection with the pin shaft. The second reinforcing plate is installed on the lower part of the second plate body to increase the structural strength of the second plate body at the connection with the pin shaft.

6. The stone breaking tool for a mining dump truck according to claim 1, characterized in that: Also includes: A pin assembly, one end of the stone slab is rotatably connected to the support through the pin assembly.

7. The stone breaking tool for a mining dump truck according to claim 6, characterized in that: The pin assembly includes a pin and an anti-slip component. The pin is passed through one end of the stone slab and the support. The anti-slip component is installed on the pin to prevent the pin from falling off.

8. The stone breaking device for a mining dump truck according to claim 7, characterized in that: The pin shaft assembly further comprises a plurality of washers, which are sleeved on the pin shaft and used for adjusting the position of one end of the stone slab on the pin shaft.

9. A mining dump truck, characterized in that: include: The cargo compartment is a U-shaped structure with curved corners at the bottom; Dual tires and wheels; as well as The mining dump truck stone breaker as described in any one of claims 1-8, wherein the concave arc structure at the upper end of the support of the mining dump truck stone breaker is welded to the arc surface of the bottom of the cargo compartment, and the other end of the stone breaker plate of the mining dump truck stone breaker is arranged in the gap between the two tires of the dual-tire wheel.

Images