Platform frame assembly, platform device and mining dump truck

Abstract

The present invention discloses a platform frame assembly, a platform device and a mining dump truck. The platform frame assembly is used for a mining dump truck, and comprises: a first frame and a second frame that are sequentially distributed and detachably connected, wherein the first frame and the second frame each comprise at least two connection beams that are spaced apart, and the at least two connection beams are used to connect to the frame of the mining dump truck. The platform frame assembly provided by the present invention comprises a first frame and a second frame that are separately arranged and detachably connected. Such an arrangement enables the platform frame assembly to have better rigidity, and reduces the problem of cracking at the welding point caused by large structural deformation due to the overall welding of beams and steel plates in the integral platform device in the related art. The first frame and the second frame are detachably connected, which is convenient for assembly and disassembly, and easy for maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of mining dump truck equipment, and in particular to a platform skeleton component, a platform device and a mining dump truck. Background Art

[0002] Mining dump trucks are important transportation equipment for open-pit mining, and the platform device is an important part of mining dump trucks. It is installed on the frame of mining dump trucks and is mainly used to install and fix the cab, expansion tank, battery box, air filter, intake and exhaust pipes, radiator guard, fender, muffler, guardrail and other parts. Therefore, the platform structure is required to be reliable, with high strength, rigidity and fatigue resistance; and there are many parts installed on it, which requires convenient maintenance of other parts.

[0003] Traditional platform devices are usually integral structures. The bottom of the integral platform is welded with a large number of reinforcing ribs and steel plates, and then installed on the frame for installation of other parts. The advantages of this structure are good overall integration and high precision in installing other parts. The disadvantage is that the integral frame is mostly installed on the frame with four-point support, which has poor stability. In addition, the overall size is large, and a large number of reinforcing rib structures are used for welding, resulting in large structural deformation, resulting in welding stress concentration, and cracking during use. In addition, the maintenance accessibility is poor, and it is often necessary to disassemble it before repairing other parts, which is labor-intensive and inefficient. Summary of the invention

[0004] In view of this, the present invention provides a platform frame assembly, a platform device and a mining dump truck, so that the platform frame assembly has good rigidity and is convenient for disassembly, assembly and maintenance.

[0005] According to a first aspect of the present invention, there is provided a platform frame assembly for a mining dump truck, comprising: a first frame and a second frame which are distributed in sequence and detachably connected, wherein the first frame and the second frame each comprise at least two connecting beams which are spaced apart, and the at least two connecting beams are used to connect to the frame of the mining dump truck.

[0006] Furthermore, the at least two connecting beams include a front beam and a rear beam, and both the front beam and the rear beam are provided with a first connecting structure, and the first connecting structure is used to be connected to the vehicle frame.

[0007] Furthermore, the number of first connecting structures set in the front beam is a first number, and the number of first connecting structures set in the rear beam is a second number; wherein, at least one of the first number and the second number of the same first skeleton is greater than or equal to 2, and the other is greater than or equal to 1; wherein at least one of the first number and the second number of the same second skeleton is greater than or equal to 2, and the other is greater than or equal to 1.

[0008] Further, at least two connecting beams further include an intermediate beam located between the front beam and the rear beam. There are two first skeletons, and the second skeleton is arranged between the two first skeletons. Among them, the intermediate beams of the two first skeletons are also provided with a second connecting structure for connecting with the vehicle frame, and the first connecting structure and the second connecting structure are located on the same side of the first skeleton.

[0009] Further, the platform skeleton assembly further includes: a third connecting structure arranged on the connecting beam of one of the two first skeletons. The third connecting structure and the first connecting structure are located on both sides of the connecting beam, and the third connecting structure is used for connecting with the cab of the mining dump truck.

[0010] Further, the platform skeleton assembly further includes: a reinforcing member arranged on at least one connecting beam, and the reinforcing member is in an "L" shape and a "匚" shape; and / or a lifting structure arranged on some connecting beams, and the number of lifting structures of the same first skeleton and the same second skeleton is at least three.

[0011] Further, the front beam of the second skeleton and the connecting beam connected thereto are of a detachable structure.

[0012] Further, the first skeleton further includes two first docking beams that connect the connecting beams and are arranged opposite to each other; the second skeleton further includes two second docking beams that connect the connecting beams and are arranged opposite to each other; among them, one of the first docking beam and the second docking beam is provided with a positioning groove, and the other is provided with a positioning protrusion adapted to the positioning groove.

[0013] According to a second aspect of the present invention, there is provided a platform device, including: a platform board; and the platform skeleton assembly according to any one of the first aspects, and the platform board is detachably connected to at least a part of the first skeleton and / or the second skeleton.

[0014] According to a third aspect of the present invention, there is provided a mining dump truck, including: a vehicle frame; and the platform skeleton assembly according to any one of the first aspects; or the platform device according to the second aspect, and the vehicle frame is connected to the first skeleton and the second skeleton.

[0015] Further, the mining dump truck further includes: a mounting seat arranged on the vehicle frame, and the first connecting member of the platform skeleton assembly is connected to the mounting seat; a support rod, one end of the support rod is hinged to the vehicle frame, and the other end is hinged to the second connecting structure of the platform skeleton assembly.

[0016] The platform frame assembly, platform device and mining dump truck provided by the embodiments of the present invention, wherein the platform frame assembly includes a first frame and a second frame which are distributed in sequence and detachably connected, and the first frame and the second frame each include at least two connecting beams arranged at intervals, that is, the platform frame assembly does not include a platform plate, but is only formed by a plurality of connecting beams. Such an arrangement enables the platform frame assembly to have better rigidity, reduces the problem of cracking at the welding joints caused by large structural deformation due to the overall welding of beams and steel plates in the integral platform device in the related art, and the first frame and the second frame are detachably connected, which is convenient for assembly and disassembly, and easy for maintenance.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0019] Figure 1 A schematic structural diagram of a platform skeleton assembly provided by an embodiment of the present invention is shown;

[0020] Figure 2 Shows Figure 1 A partial structural schematic diagram of the illustrated embodiment.

[0021] in, Figure 1 to Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0022] 100 platform frame assembly, 110 first frame, 111 first frame A, 112 first frame B, 120 second frame, 140 connecting beam, 141 front beam, 142 rear beam, 143 middle beam, 144 first docking beam, 145 second docking beam, 150 second connecting structure, 160 third connecting structure, 170 lifting structure, 180 support rod, 181 pin shaft, 182 cover plate, 183 bolt. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] Refer to the following Figure 1 and Figure 2 The platform frame assembly 100, the platform device and the mining dump truck provided according to some embodiments of the present invention are described, wherein the platform frame assembly 100 is a part of the platform device, and both the platform frame assembly 100 and the platform device are applied to the mining dump truck. For example, in some possible embodiments provided by the present invention, the platform device includes the platform frame assembly 100 and a platform plate installed to the platform frame assembly 100. The mining dump truck includes a vehicle frame, and the platform frame assembly 100 is connected to the vehicle frame. A part of the components of the mining dump truck, such as the cab, expansion tank, battery box, air filter and intake and exhaust pipes, radiator shield, fender, muffler, guardrail, etc., can be directly connected to the platform frame assembly 100, and another part can also be directly placed on the platform plate or connected to the platform plate.

[0026] An embodiment of the first aspect of the present invention provides a platform skeleton assembly 100 for a mining dump truck, comprising: a first skeleton 110 and a second skeleton 120 that are distributed in sequence and detachably connected; wherein the first skeleton 110 and the second skeleton 120 each include at least two connecting beams 140 that are spaced apart, and the at least two connecting beams 140 are used to connect to the frame of the mining dump truck.

[0027] The platform skeleton assembly 100 provided in the embodiment of the present invention is as follows: Figure 1As shown, it includes a first skeleton 110 and a second skeleton 120 that are distributed in sequence and detachably connected. It can be understood that the number of the first skeleton 110 can be one, two or more, and the number of the second skeleton 120 can be one, two or more, and the present invention does not make specific limitations. Specifically, the first skeleton 110 and the second skeleton 120 can be distributed in sequence along the horizontal direction, or the first skeleton 110 and the second skeleton 120 can be distributed in other directions that meet the requirements. For example, at least two first skeletons 110 are distributed on both sides of the second skeleton 120, and all the first skeletons 110 and the second skeleton 120 are distributed in sequence along the same direction, and the present invention does not make specific limitations. Since the first frame and the second frame are detachably connected, that is, the platform frame assembly 100 provided in the embodiment of the present invention is a split structure, including at least one first frame 110 and at least one second frame 120 that are detachably connected, and the first frame 110 and the second frame 120 both include at least two connecting beams 140, that is, the platform frame assembly 100 does not include a platform plate, but is only formed by at least two connecting beams 140. Such an arrangement allows the platform frame assembly 100 to have better rigidity, reduces the problem of cracking at the welding joints caused by large structural deformation due to the overall welding of beams and steel plates in the integral platform device in the related art, and the multiple frames are detachably connected, which is convenient for assembly and disassembly, and easy for maintenance.

[0028] Furthermore, the sum of the number of the first skeleton 110 and the second skeleton 120 in the platform skeleton assembly 100 can be two or at least three, such as the sum of the number of the first skeleton 110 and the second skeleton 120 is three, four, five or other values ​​that meet the requirements. The sum of the number of the first skeleton 110 and the second skeleton 120 is different values ​​that can meet the needs of different sizes and different structures of the frame, expanding the scope of use of the product. Specifically, the sum of the number of the first skeleton 110 and the second skeleton 120 in the platform skeleton assembly 100 is at least three, and at least two connecting beams 140 are used to connect to the frame of the mining dump truck, so that the platform skeleton assembly 100 has at least six connecting beams 140 connected to the frame, that is, the platform skeleton assembly 100 is installed on the frame through at least six points of support, thereby realizing multi-point support of the platform skeleton assembly 100. Compared with the four-point support adopted by the integral platform device installed on the frame in the related art, the stability is higher, which is conducive to improving the reliability of the whole machine.

[0029] In some possible implementations provided by the present invention, such as Figure 1As shown, the platform skeleton assembly 100 includes two first skeletons 110 and one second skeleton 120 , wherein the two first skeletons 110 are respectively a first skeleton A111 and a first skeleton B112 , wherein the second skeleton 120 is located between the two first skeletons 110 , and the first skeleton A111 and the first skeleton B112 are located on both sides of the second skeleton 120 . It can be understood that the multiple connecting beams 140 of the first skeleton A111 are welded in sequence, the multiple connecting beams 140 of the second skeleton 120 are welded in sequence, and the multiple connecting beams 140 of the first skeleton B112 are welded in sequence, and the first skeleton A111 and the second skeleton 120 are detachably connected by bolts or other connecting structures, and the second skeleton 120 and the first skeleton B112 are detachably connected by bolts or other connecting structures. Therefore, when the platform skeleton assembly 100 is connected to the frame as a whole and other components of the mining dump truck are installed on the platform skeleton assembly 100, the platform skeleton assembly 100 has good rigidity, which reduces the problem of cracking at the welding joints caused by large structural deformation due to the overall welding of beams and steel plates in the integral platform device in the related art. At the same time, the multiple skeletons are detachably connected, which is convenient for assembly and disassembly, convenient for maintenance of other components, and easy to operate.

[0030] Furthermore, at least two connecting beams 140 include a front beam 141 and a rear beam 142. It can be understood that the front beam 141 and the rear beam 142 are arranged on opposite sides of any first frame 110 and any second frame 120, such as the front beam 141 and the rear beam 142 are respectively located at the front end and the rear end of any first frame 110 and any second frame 120. By arranging a first connecting structure on the front beam 141 and the rear beam 142 of any first frame 110 and any second frame 120, and connecting with the frame by utilizing the first connecting structure, the first frame 110 is connected to the frame through the first connecting structure of the front beam 141 and the first connecting structure of the rear beam 142, and the second frame 120 is connected to the frame through the first connecting structure of the front beam 141 and the first connecting structure of the rear beam 142. Such an arrangement is conducive to improving the stability of the connection between the first frame 110, the second frame 120 and the frame, thereby improving the stability and reliability of the platform frame assembly 100.

[0031] Further, the number of first connecting structures provided on the front beam 141 is a first number, the number of first connecting structures provided on the rear beam 142 is a second number, at least one of the first number and the second number of the same first skeleton is greater than or equal to 2, and the other is greater than or equal to 1, at least one of the first number and the second number of the same second skeleton is greater than or equal to 2, and the other is greater than or equal to 1, that is, the sum of the numbers of first connecting structures provided on the front beam 141 and the rear beam 142 of any first skeleton is greater than or equal to 3, and the sum of the numbers of first connecting structures provided on the front beam 141 and the rear beam 142 of any second skeleton is greater than or equal to 3. Such a setting, by connecting at least three first connecting structures on the same first skeleton to the frame, and connecting at least three first connecting structures on the same second skeleton to the frame, can ensure the reliability and stability of the connection between the first skeleton 110 and the second skeleton 120 and the frame, thereby improving the reliability and stability of the overall connection between the platform skeleton assembly 100 and the frame.

[0032] Specifically, the number of first connection structures of the front beam 141 of the same first skeleton 110 and / or the same second skeleton 120 is 1, and the number of first connection structures of the rear beam 142 is 2; or, the number of first connection structures of the front beam 141 of the same first skeleton 110 and / or the same second skeleton 120 is 2, and the number of first connection structures of the rear beam 142 is 1; or, the number of first connection structures of the front beam 141 of the same first skeleton 110 and / or the same second skeleton 120 is 2, and the number of first connection structures of the rear beam 142 is 2; or the number of first connection structures of the front beam 141 of the same first skeleton 110 and / or the same second skeleton 120 is other values ​​that meet the requirements, and the number of first connection structures of the rear beam 142 is other values ​​that meet the requirements. It can be understood that the number of first connection structures of the first skeleton 110 and the second skeleton 120 may be the same or different, and the present invention does not make specific limitations. For example, Figure 1 As shown, the first skeleton 110 includes two, the second skeleton 120 includes one, the front beams 141 of the first skeleton A111, the second skeleton 120 and the first skeleton B112 are respectively provided with two first connecting structures, and the rear beams 142 are respectively provided with two first connecting structures, that is, any first skeleton 110 and the second skeleton 120 are provided with four first connecting structures, so that any first skeleton 110 and the second skeleton 120 are installed on the frame through four-point support, and the entire platform skeleton assembly 100 is installed on the frame through twelve-point support, that is, multi-point support is realized, which greatly improves the stability of the platform skeleton assembly 100, and is beneficial to improving the reliability of the entire machine.

[0033] Specifically, the first connection structure includes a threaded hole, the frame is provided with a mounting seat, the mounting seat is provided with a through hole, and the bolt passes through the through hole and is connected to the threaded hole to fix the first frame 110 and the second frame 120 to the frame.

[0034] In some possible implementations provided by the present invention, such as Figure 1 As shown, the platform skeleton assembly 100 includes two first skeletons 110 and a second skeleton 120, the two first skeletons 110 are respectively a first skeleton A111 and a first skeleton B112, wherein the second skeleton 120 is located between the two first skeletons 110, and the first skeleton A111 and the first skeleton B112 are located on both sides of the second skeleton 120. At least two connecting beams 140 also include an intermediate beam 143, and the intermediate beam 143 is located between the front beam 141 and the rear beam 142, wherein the intermediate beam 143 of the two first skeletons 110 is further provided with a second connecting structure 150, that is, the intermediate beam 143 of the first skeleton A111 and the first skeleton B112 is further provided with a second connecting structure 150, and is connected to the vehicle frame through the second connecting structure 150, thereby further improving the reliability and stability of the connection between the first skeleton A111 and the first skeleton B112 and the vehicle frame, and strengthening the reliability and stability of the connection between the platform skeleton assembly 100 and the vehicle frame. It can be understood that the load-bearing capacity of the first skeleton A111 and the first skeleton B112 is relatively large, that is, the weight of the components placed at the relative positions of the first skeleton A111 and the first skeleton B112 is relatively large. Therefore, by providing a second connecting structure 150 on the middle beam 143 of the first skeleton A111 and the first skeleton B112, and utilizing the second connecting structure 150 to auxiliaryly connect with the frame, the platform skeleton assembly 100 has a stronger load-bearing capacity and better stability, which can meet the requirement of placing more components on the platform skeleton assembly 100, thereby expanding the scope of use of the product.

[0035] For example, when the mining dump truck is an electric wheel mining dump truck, the platform device also needs to be used to install components such as electric control cabinets, resistor grids, battery boxes, etc. In this case, the platform device needs to be reliable, with high strength, rigidity, fatigue resistance and load-bearing capacity. Therefore, by adding a second connection structure 150 to the middle beam 143 of the first frame 110 of the platform frame assembly 100, and auxiliary connection with the frame through the second connection structure 150, the platform frame assembly 100 can have high strength, rigidity, fatigue resistance and load-bearing capacity, so that the platform device can be installed with more components and the use range of the product is expanded.

[0036] Furthermore, since the first connection structure and the second connection structure 150 are both used to connect to the frame, the first connection structure and the second connection structure 150 can be set on the same side of the skeleton, such as the bottom of the skeleton. This facilitates the assembly of the platform skeleton assembly 100 and the frame, which is beneficial to improving assembly efficiency.

[0037] Specifically, the second connection structure 150 is a hinge seat. The setting of the hinge seat enables the middle beam 143 of the vehicle frame and the first frame 110 to be movably connected, which is beneficial to improving the uniformity of the force borne by the first connection structure and the second connection structure 150. Furthermore, while improving the load-bearing capacity of the platform frame assembly 100, the reliability of the platform frame assembly 100 is enhanced.

[0038] Furthermore, a third connection mechanism is provided on the connection beam of any one of the two first frames 110. The third connection structure 160 and the first connection structure are located on both sides of the connection beam 140. The third connection structure 160 is used to connect with the cab of the mining dump truck. As Figure 1 shown, a third connection structure 160 is provided on any one of the connection beams 140 of the first frame B112. That is to say, the cab of the mining dump truck is directly connected to the first frame B112, and there is no need to provide a platform plate on the platform frame assembly 100. Such a setting reduces the weight of the platform frame assembly 100. It can be understood that the number of the third connection structures 160 is multiple, which is beneficial to improving the reliability of the connection between the cab and the first frame B112. At the same time, since the second connection structure 150 is provided on the middle beam 143 of the first frame B112, if the second connection structure 150 is located at the middle position of multiple third connection structures 160, and the second connection structure 150 is used to assist in connecting with the vehicle frame, the first frame B112 has a relatively strong load-bearing capacity and good stability, and can meet the requirement of placing relatively heavy components such as the cab on the platform frame assembly 100, ensuring the reliability of the product.

[0039] In some possible embodiments provided by the present invention, the platform frame assembly 100 further includes a reinforcing member. For example, the reinforcing member is a reinforcing rib and / or a reinforcing beam. The reinforcing member is provided on at least one connection beam 140. For example, the reinforcing member is provided on the connection beam 140 at a position where a relatively large load-bearing capacity is required, which is beneficial to improving the strength and service life of the connection beam 140. Specifically, the reinforcing member is in the shape of "L" and "匚". Among them, for the connection beam 140 at a position with a relatively large load-bearing requirement, such as the connection beam 140 that supports relatively heavy components such as the battery box, resistor grid, electric control cabinet, and cab, a "匚"-shaped reinforcing beam can be used for reinforcement. For the connection beam 140 at other positions where the load-bearing requirement is not particularly large, such as the connection beam 140 that supports components such as the radiator grille, fender, muffler, and guardrail, an "L"-shaped reinforcing rib can be used for reinforcement.

[0040] In some possible embodiments provided by the present invention, the platform skeleton assembly 100 further includes a hoisting structure 170, which is arranged on a part of the connecting beam 140. The arrangement of the hoisting structure 170 allows the first skeleton 110 and the second skeleton 120 to be moved to a designated position by a sling through the hoisting structure 170 during the process of assembling the first skeleton 110 and the second skeleton 120 into the platform skeleton assembly 100, thereby facilitating assembly. It is understandable that the hoisting structure 170 can also be used to move the disassembled first skeleton 110 and the second skeleton 120 to a designated position, that is, the arrangement of the hoisting structure 170 facilitates the assembly and disassembly of each first skeleton 110 and the second skeleton 120 in the platform skeleton assembly. Specifically, the hoisting structure 170 can be a hoisting seat, a hoisting ear, or other structures that meet the requirements, and the present invention does not make specific limitations.

[0041] Furthermore, the number of the hoisting structures 170 of the same first frame 110 and the same second frame 120 is at least three. The use of at least three hoisting structures 170 can ensure the stability and reliability of one first frame 110 and one second frame 120 during movement. It is understandable that the number of hoisting structures 170 can be reasonably set according to the size, weight, shape, etc. of the frame to meet the stability and reliability of any frame during the hoisting process. Specifically, Figure 1 As shown, in the first frame 110 and the second frame 120, the number of the hanging structures 170 is four, wherein the front beam 141 of the first frame A111 is provided with two hanging structures 170, and the rear beam 142 is provided with two hanging structures 170, and the front beam 141 of the second frame 120 is provided with two hanging structures 170, and the rear beam 142 is provided with two hanging structures 170; the first frame B112 is provided with two hanging structures 170 along the front-to-back direction, and the connecting beam 140 adjacent to the front beam 141 is provided with two hanging structures 170, and the rear beam 142 is provided with two hanging structures 170. It can be understood that the hanging structures 170 can also be provided on other connecting beams 140 that meet the requirements, and the present invention does not make specific limitations.

[0042] In some possible embodiments provided by the present invention, the front beam 141 of the second frame 120 and the connected connecting beam 140 are detachable structures. With such a configuration, when repairing components such as the engine, the front beam 141 can be removed from the second frame 120 without disassembling the entire platform device or the entire platform frame assembly 100, which is convenient for maintenance and simple to operate. Specifically, the front beam 141 of the second frame 120 and the connected connecting beam 140 are detachably connected by bolts.

[0043] In some possible embodiments provided by the present invention, the first frame also includes two first docking beams connected to the connecting beam and arranged oppositely, and the second frame also includes two second docking beams connected to the connecting beam and arranged oppositely, that is, the first docking beam 144 of the first frame 110 is matched and connected with the second docking beam 145 of the second frame 120, so as to realize the detachable connection between the first frame 110 and the second frame 120. Therefore, by providing a positioning groove in one of the adjacent first docking beams and the second docking beams, and providing a positioning protrusion matched with the positioning groove in the other, the adjacent first docking beams and the second docking beams can be guided and pre-assembled by using the positioning groove and the positioning protrusion during the connection process, which is conducive to improving the assembly accuracy and assembly efficiency of the first frame 110 and the second frame 120. In addition, the provision of the positioning groove and the positioning protrusion, in addition to having the positioning function, also has the function of strengthening the strength of the overall platform frame assembly 100, thereby greatly improving the reliability of the platform frame assembly 100.

[0044] Specifically, the first docking beam 144 is provided with a positioning groove, and the second docking beam 145 is provided with a positioning protrusion, or the first docking beam 144 is provided with a positioning protrusion, and the second docking beam 145 is provided with a positioning groove. The different setting positions of the positioning protrusion and the positioning groove can meet the requirements of different structures of the positioning protrusion, the positioning groove, and the connection positions of each docking beam, thereby expanding the scope of use of the product.

[0045] It is understandable that the first docking beam 144 and the second docking beam 145 are detachably connected via bolts, thereby achieving a detachable connection between the first frame 110 and the second frame 120 .

[0046] The second aspect of the present invention provides a platform device, comprising: a platform plate; and the platform frame assembly 100 of any one of the first aspects, wherein the platform plate is detachably connected to at least a portion of the first frame 110 and / or the second frame 120. Since the platform device provided by the embodiment of the second aspect of the present invention comprises the platform frame assembly 100 of any one of the embodiments of the first aspect, it has all the beneficial technical effects of the platform frame assembly 100, which will not be described one by one here.

[0047] Furthermore, the platform device includes a platform plate and a platform frame assembly 100, and the platform plate is detachably connected to at least a part of the first frame 110 and / or the second frame 120, that is, a part of the first frame 110 and the second frame 120 can be provided with a platform plate and detachably connected to the platform plate, and the parts of the mining dump truck can be placed on the platform plate and connected to the platform plate, and another part of the first frame 110 and the second frame 120 is not provided with a platform plate, and the parts of the mining dump truck can be directly placed on the frame and connected to the frame. Such a setting can reasonably set the position of the platform plate according to the different structures of the parts supported by each frame, thereby expanding the use function of the product.

[0048] In some possible embodiments provided by the present invention, the platform skeleton assembly 100 includes two first skeletons 110 and a second skeleton 120, and the first skeleton 110 includes a first skeleton A111 and a first skeleton B112, wherein the first skeleton A111 and the second skeleton 120 are detachably provided with a platform plate, such as the platform plate is connected to the first skeleton A111 and the second skeleton 120 by bolts, and the first skeleton B112 is not provided with a platform plate, and the cab of the mining dump truck is directly connected to the first skeleton B112. It is understandable that the portion other than the position of the first skeleton B112 relative to the cab can also be provided with a platform plate to meet the needs of the first skeleton B112 for supporting other parts. It is understandable that, according to the different structures of the parts supported by each first skeleton 110 and the second skeleton 120, a portion of the first skeleton A111 can be provided with a platform plate, and another portion can be provided with a platform plate, and a portion of the second skeleton 120 can be provided with a platform plate, and another portion can be provided with a platform plate. The present invention does not specifically limit the specific setting position of the platform plate.

[0049] The third aspect of the present invention provides a mining dump truck, comprising: a vehicle frame; and the platform frame assembly 100 of any one of the first aspect; or the platform device of the second aspect, wherein the vehicle frame is connected to the first frame 110 and the second frame 120. Since the mining dump truck provided by the embodiment of the third aspect of the present invention comprises the platform frame assembly 100 of any one of the first aspect, or the platform device of the second aspect, it has all the beneficial technical effects of the platform frame assembly 100 or the platform device, which will not be described one by one here.

[0050] Furthermore, if Figure 2As shown, the mining dump truck includes a vehicle frame, a mounting seat and a support rod 180, the mounting seat is arranged on the vehicle frame, and the first connection structure of the platform frame assembly 100 is connected to the mounting seat, such as the first connection structure and the mounting seat are connected by bolts, so as to realize the fixed support of the vehicle frame to the platform frame assembly 100. One end of the support rod 180 is hinged to the vehicle frame, and the other end of the support rod 180 is hinged to the second connection structure 150 of the platform frame assembly 100, so as to realize the movable connection between the vehicle frame and the platform frame assembly 100, so as to realize auxiliary support.

[0051] Specifically, the second connection structure 150 is an articulated seat, which is welded to the middle beam 143 of the first frame 110. It is understood that the frame is also provided with an articulated seat, one end of the support rod 180 is connected to the articulated seat of the frame, and the other end is connected to the articulated seat of the platform frame assembly 100 through a pin 181. It is understood that after the pin 181 connects the support rod 180 and the articulated seat, a cover plate 182 can be sleeved on the other end of the pin 181 and fixed by a bolt 183, so as to further improve the reliability of the connection between the pin 181, the support rod 180 and the articulated seat.

[0052] In the specific embodiment provided by the present invention, a split platform skeleton assembly 100 with strong bearing capacity, convenient disassembly and assembly, and easy maintenance is provided. The platform skeleton assembly 100 is used for an electric wheel mining dump truck. The platform skeleton assembly 100 includes two first skeletons 110 and a second skeleton 120. The second skeleton 120 is located between the two first skeletons 110. The two first skeletons 110 include a first skeleton A111 and a first skeleton B112. The first skeleton A111, the second skeleton 120, and the first skeleton B112 are distributed in sequence and connected to each other by bolts. Among them, the first docking beam 144 of the first skeleton A111 is connected to the second docking beam 145 of the second skeleton 120 by bolts, and the second docking beam 145 of the second skeleton 120 is connected to the first docking beam 144 of the first skeleton B112 by bolts, and a guide positioning keyway (positioning groove and positioning protrusion) is provided at the connection between the first docking beam 144 and the second docking beam 145. The guide positioning keyway has the function of strengthening the overall platform strength in addition to positioning.

[0053] Furthermore, the first frame A111, the second frame 120, and the first frame B112 are each equipped with four hoisting structures 170 (hoisting seats) for easy assembly. The front beam 141 of the second frame 120 is a detachable beam connected by bolts, that is, the front beam 141 of the second frame 120 and the connected connecting beam 140 are detachably connected, and can be disassembled when repairing components such as the engine, so that the entire platform frame assembly 100 does not need to be disassembled, which is convenient for maintenance.

[0054] Furthermore, the first frame A111, the second frame 120, and the first frame B112 are composed of a large number of profiles to form a frame, with better overall strength and stiffness, reducing the cracking at the welding joints caused by large deformations. The reinforcing ribs and reinforcing beams inside the platform frame assembly 100 are in the shapes of "L" and "匚". For the load-bearing parts, such as the battery box, resistor grid, electrical control cabinet, cab, etc., which are heavier, "匚"-shaped reinforcing beams are used for reinforcement, and the rest are reinforced with "L"-shaped reinforcing ribs.

[0055] Furthermore, for the support method of the platform frame assembly 100, the present invention uses multi-point support instead of the traditional four-point support. Specifically, two first connection structures are provided on the front beam 141 and the rear beam 142 of the first frame A111, the second frame 120, and the first frame B112 respectively, and are connected to the first connection structures of each frame through the mounting seats of the vehicle frame, realizing a total of 12 mounting points. At the same time, a second connection structure 150 is added at the middle beam 143 of the first frame A111 and the first frame B112, and the vehicle frame and the second connection structure 150 are connected through a support rod 180 to realize the auxiliary support for the platform frame assembly 100, thereby enhancing the bearing capacity and stability of the platform frame assembly 100. It can be understood that the second connection structure 150 can be a hinge seat, which is welded to the middle beam 143 of the first frame A111 and the first frame B112. The hinge seat, support rod 180, pin shaft 181, cover plate 182, and bolt 183 form a support beam assembly. One end of the support rod 180 is fixed to the platform hinge seat through the pin shaft 181, and the other end is fixed to the vehicle frame hinge seat. This greatly improves the stability and bearing capacity of the platform frame assembly 100, meeting the problem of placing a large number of components on the electric wheel dump truck platform.

[0056] The platform frame assembly 100 provided by the embodiment of the present invention is a split structure, with good stiffness, reducing the cracking at the welding joints caused by large deformations, and is easy to disassemble and assemble, facilitating maintenance; and through the first connection structure, the vehicle frame realizes multi-point support for the platform frame assembly 100. At the same time, a second connection structure 150 is added at the middle beam 143 of the first frame A111 and the first frame B112, and the vehicle frame and the second connection structure 150 are connected through the support rod 180 to realize auxiliary support, making the platform frame assembly 100 have strong bearing capacity and better stability, and can meet the problem of placing a large number of components on the electric wheel dump truck platform; and there is a positioning structure at each frame connection, facilitating installation and positioning, and at the same time, it can strengthen the overall strength of the platform frame, and is suitable for popularization and application.

[0057] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship described in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the description of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation 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 one or more embodiments or examples in a suitable manner.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A platform frame assembly for a mining dump truck, characterized in that: include: A first frame and a second frame which are sequentially distributed and detachably connected; Wherein, the first frame and the second frame each include at least two connection beams arranged at intervals, the at least two connection beams are used to connect to the frame of the mining dump truck, and the total number of the first frame and the second frame is at least three; The at least two connecting beams include a front beam and a rear beam, and the front beam and the rear beam are both provided with a first connecting structure, and the first connecting structure is used to connect with the frame to fix the first skeleton and / or the second skeleton to the frame; The number of the first connecting structures provided on the front beam is a first number, and the number of the first connecting structures provided on the rear beam is a second number; Wherein, at least one of the first number and the second number of the same first skeleton is greater than or equal to 2, and the other is greater than or equal to 1; At least one of the first number and the second number of the same second skeleton is greater than or equal to 2, and the other is greater than or equal to 1; The at least two connecting beams further include an intermediate beam, the intermediate beam being located between the front beam and the rear beam, the first skeletons include two, the second skeletons being arranged between the two first skeletons, wherein the intermediate beams of the two first skeletons are further provided with a second connecting structure for connecting with the vehicle frame, the first connecting structure and the second connecting structure being located on the same side of the first skeleton, the second connecting structure being an articulated seat, the articulated seat being used for articulating with a support rod of the mining dump truck; The platform skeleton assembly also includes: a third connecting structure, which is arranged on the connecting beam of one of the two first skeletons, the third connecting structure and the first connecting structure are located on both sides of the connecting beam, and the third connecting structure is used to connect to the cab of the mining dump truck.

2. The platform frame assembly according to claim 1, characterized in that: The front beam of the second frame and the connected connecting beam are detachable structures.

3. The platform frame assembly according to claim 1, characterized in that: The first frame also includes two first butt-jointing beams connected to the connecting beam and arranged opposite to each other; The second frame also includes two second butt-jointing beams connected to the connecting beam and arranged opposite to each other; Among them, one of the adjacent first butt-joint beams and the second butt-joint beams is provided with a positioning groove, and the other is provided with a positioning protrusion matched with the positioning groove.

4. A platform device, characterized in that: include: Platform board; as well as The platform frame assembly according to any one of claims 1 to 3, wherein the platform plate is detachably connected to at least a portion of the first frame and / or the second frame.

5. A mining dump truck, characterized in that: include: Frame; as well as The platform frame assembly according to any one of claims 1 to 3; or The platform device as described in claim 4, wherein the frame is connected to the first frame and the second frame.

6. The mining dump truck according to claim 5, characterized in that: Also includes: A mounting seat, arranged on the vehicle frame, the first connecting member of the platform frame assembly being connected to the mounting seat; A support rod, one end of which is hinged to the vehicle frame, and the other end of which is hinged to the second connecting structure of the platform skeleton assembly.

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