Mining vehicle and frame assembly thereof

Abstract

The application discloses a mining vehicle and a frame assembly thereof, and belongs to the technical field of mining vehicles. The frame assembly comprises a main frame and multiple groups of supports, and the multiple groups of supports are fixedly arranged on the main frame. The main frame comprises a left frame beam, a right frame beam and multiple cross beams. Each cross beam is arranged between the left frame beam and the right frame beam and is fixedly inserted into the left frame beam and the right frame beam. The left support and the right support of each group of supports are fixedly connected with the left frame beam and the right frame beam. The left support and the right support of at least one group of supports are connected with the two ends of at least one cross beam to form a cross beam frame structure. The function of the cross beam is expanded through structural optimization. On the basis of improving the overall torsional stiffness of the main frame by connecting the left frame beam and the right frame beam, the installation stiffness of the corresponding functional component support can be improved, the optimization of the force flow transmission path of the overall frame is realized, the reliability and the service life of the frame assembly can be effectively improved, and stable technical support is provided for adapting to the complex working conditions of mines.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a mining vehicle and a frame assembly thereof. BACKGROUND

[0002] As the core equipment for mining transportation, the mining dump truck works in extremely harsh environment, and is subjected to huge torsional load for a long time under heavy load, bumping, high-intensity impact and complex road conditions. The structure strength, torsional stiffness and reliability of the chassis frame assembly as the load-bearing base of the whole vehicle directly determine the service life, operation safety and economic efficiency of the whole vehicle.

[0003] The load-bearing capacity of the traditional frame assembly architecture mostly depends on the welding process, and there are a large number of continuous welds. For example, the mounting seats of key functional accessories such as battery box, lifting support, suspension cylinder support, etc. are usually connected with the main frame by welding. In harsh working conditions, torsional deformation easily occurs, which affects the stability of the whole vehicle and the service life of each component mounted on the frame. In addition, the welding process produces a heat-affected zone, which leads to a decrease in the performance of the base material and generates welding residual stress, and the weld itself is prone to become the origin of fatigue cracks. In the harsh dynamic load conditions during mining operation, the weld is often a high-risk area of cracking, which seriously affects the reliability and service life of the frame, and the maintenance cost is high.

[0004] Therefore, it is urgent to optimize the structure of the frame of the mining vehicle to effectively improve the reliability and service life of the frame assembly. SUMMARY

[0005] To solve the above technical problems, the present application provides a mining vehicle and a frame assembly thereof, which effectively improves the reliability and service life of the frame assembly through structural optimization, and provides stable technical support for adapting to the complex working conditions of mines.

[0006] The present application provides a frame assembly of a mining vehicle, which comprises a main frame and a plurality of groups of seats, wherein the plurality of groups of seats are fixedly arranged on the main frame and used for mounting corresponding functional accessories; the main frame comprises a left frame beam, a right frame beam and a plurality of cross beams, each cross beam is located between the left frame beam and the right frame beam, and the cross beam is fixedly inserted into the left frame beam and the right frame beam; each group of seats comprises a left seat and a right seat, and the left seat and the right seat are fixedly connected with the left frame beam and the right frame beam, respectively; the left seat and the right seat of at least one group of seats are connected with both ends of at least one cross beam to form a cross beam architecture.

[0007] Optionally, the plurality of cross beams are torsion cylinders, and are sequentially arranged as a first torsion cylinder, a second torsion cylinder, a third torsion cylinder and a fourth torsion cylinder from front to back.

[0008] Optionally, the plurality of groups of supports comprises lifting oil cylinder supports for mounting the lifting oil cylinders, left and right supports of the lifting oil cylinder supports being respectively sleeved and fixed to two ends of the first torsion cylinder.

[0009] Optionally, the plurality of groups of supports further comprises first drive motor supports for mounting the first drive motors, left and right supports of the first drive motor supports being respectively fixedly connected with the first torsion cylinder through first connecting portions and being respectively fixed to lower portions of the left and right frame beams through second connecting portions.

[0010] Optionally, the plurality of groups of supports further comprises second drive motor supports for mounting the second drive motors, left and right supports of the second drive motor supports being respectively fixedly connected with the third torsion cylinder through first connecting portions and being respectively fixed to lower portions of the left and right frame beams through second connecting portions.

[0011] Optionally, the plurality of groups of supports further comprises first rear suspension oil cylinder supports for mounting the first rear suspension oil cylinders, left and right supports of the first rear suspension oil cylinder supports being respectively sleeved and fixed to two ends of the second torsion cylinder.

[0012] Optionally, the left and right supports of the first rear suspension oil cylinder supports respectively comprise a mounting plate and two ear plates, the two ear plates being fixedly arranged on the mounting plate and used for being connected with the first rear suspension oil cylinder, the mounting plate being welded and fixed with the left and right frame beams of the corresponding side, and upper edges of the mounting plate and the two ear plates being welded and fixed with a lower surface of a first mounting portion of an upper cover plate of the left and right frame beams.

[0013] Optionally, the plurality of groups of supports further comprises second rear suspension oil cylinder supports for mounting the second rear suspension oil cylinders, left and right supports of the second rear suspension oil cylinder supports being respectively sleeved and fixed to two ends of the fourth torsion cylinder.

[0014] Optionally, the fourth torsion cylinder is provided as two, and the two fourth torsion cylinders are arranged in a spaced manner.

[0015] Optionally, the left and right supports of the second rear suspension oil cylinder supports respectively comprise a mounting plate and two ear plates, the two ear plates being fixedly arranged on the mounting plate and used for being connected with the second rear suspension oil cylinder, the mounting plate being welded and fixed with the left and right frame beams of the corresponding side, and upper edges of the mounting plate and the two ear plates being welded and fixed with a lower surface of a second mounting portion of an upper cover plate of the left and right frame beams.

[0016] Optionally, the main frame further comprises a front ring beam fixedly installed at the front ends of the left frame beam and the right frame beam; and the plurality of groups of supports further comprise front suspension oil cylinder supports for installing front suspension oil cylinders, left supports and right supports of the front suspension oil cylinder supports being respectively installed at two sides of the front ring beam.

[0017] Optionally, the frame assembly further comprises a front axle force transmission mechanism formed by a casting process, the front axle force transmission mechanism being fixedly installed at the front ends of the left frame beam and the right frame beam and connected with the front ring beam.

[0018] The application further provides a mining vehicle adopting the frame assembly of the mining vehicle.

[0019] Compared with the prior art, the application innovatively provides a frame assembly of a mining vehicle, and specifically, at least one cross beam of the frame assembly is connected with supports of functional accessories, two ends of the cross beam are fixedly inserted into the left frame beam and the right frame beam, and the cross beam is connected with left supports and right supports arranged in groups, respectively, to form a corresponding cross beam structure and realize optimization of a force flow transmission path of the frame as a whole. Thus, the function of the cross beam is expanded, and on the basis of improving the torsional stiffness of the main frame as a whole by connecting the left frame beam and the right frame beam, the installation stiffness of the corresponding functional component supports can be improved, the structural efficiency and the functional integration are maximized through the cross beam connected with the supports, and a stable and reliable load bearing basis is provided for the whole vehicle.

[0020] In the optional scheme of the application, the front axle force transmission mechanism of the frame assembly is formed by a casting process, the front axle force transmission mechanism is fixedly installed at the front ends of the left frame beam and the right frame beam and connected with the front ring beam. In actual application, the front axle force transmission mechanism can bear various loads from the wheels, wherein most of the longitudinal force and the lateral force are transmitted to the front end of the frame through the front axle force transmission mechanism, and the vertical force is transmitted to the front ring beam. The front axle force transmission mechanism formed by the casting process has high structural strength and can effectively reduce the influence of the welds, and the reliability and service life of the frame assembly can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic view of a frame assembly of a mining vehicle according to an embodiment of the application;

[0022] Figure 2 FIG. 2 is a partial schematic view of the frame assembly shown in FIG. 1; Figure 1

[0023] Figure 3 FIG. 3 is an assembly relationship schematic view of a first torsion cylinder, a lifting oil cylinder support and a main frame shown in FIG. 2; Figure 1 ​​

[0024] Figure 4 As Figure 1 The assembly relationship schematic diagram of the first torsion cylinder and the first driving motor support shown in FIG. 1;

[0025] Figure 5 As Figure 1 The assembly relationship schematic diagram of the second torsion cylinder, the first rear suspension oil cylinder support and the main vehicle frame shown in FIG. 2;

[0026] Figure 6 As Figure 1 The assembly relationship schematic diagram of the front ring beam, the front suspension oil cylinder support, the front suspension oil cylinder support and the main vehicle frame shown in FIG. 3;

[0027] Figure 7 The structure schematic diagram of a front axle force transmission mechanism provided by an embodiment of the present application;

[0028] Figure 8 The cross-sectional schematic diagram of the left and right vehicle frame beams described by an embodiment of the present application;

[0029] Figure 9 As Figure 1 The assembly explosion schematic diagram of the main vehicle frame and the battery box support and the driver platform support shown in FIG. 4.

[0030] Explanation of reference signs:

[0031] Vehicle frame assembly 100;

[0032] Main vehicle frame 10, upper cover plate 10a, first mounting portion 10a1, second mounting portion 10a2, first group of bolt holes 10a3, second group of bolt holes 10a4, upper cover plate 10a, web plate 10b, lower cover plate 10c, left vehicle frame beam 101, right vehicle frame beam 102, first torsion cylinder 1021, second torsion cylinder 1022, third torsion cylinder 1023, fourth torsion cylinder 1024, front ring beam 103;

[0033] Front suspension oil cylinder support 201, first rear suspension oil cylinder support 202, mounting plate 2021, lug plate 2022, second rear suspension oil cylinder support 203, first driving motor support 204, first connecting portion 204a, second connecting portion 204b, rear support 2041, front support 2042, second driving motor support 205, lifting oil cylinder support 206, front axle force transmission mechanism 207;

[0034] Front axle suspension oil cylinder 301, first rear suspension oil cylinder 302, second rear suspension oil cylinder 303, battery box support 304, cab platform 305. DETAILED DESCRIPTION

[0035] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0036] Generally, mining vehicles need to work for a long time with large load, and the working environment is relatively complex and harsh, and the carrying capacity of the mining vehicle is also developing in the trend of increasing. In the related art, the typical frame assembly architecture mostly relies on welding process, and there are a large number of dense continuous welds. For example, the mounting seat of key accessories such as battery box, lifting support, suspension cylinder support, etc. is usually connected with the main frame by welding. Torsional deformation is easy to occur under harsh working conditions, which affects the stability of the whole vehicle and the service life of each component mounted on the frame. In addition, the welding process will produce a heat-affected zone, resulting in a decrease in the performance of the base material, and the weld itself is prone to become the origin of fatigue cracks. Under the harsh dynamic load working condition in mine operation, the weld is often a high-risk area of cracking, which seriously affects the reliability and service life of the frame, and the maintenance cost is high.

[0037] For example, most of the traditional lifting supports are made of complex multi-plate structure by welding, which is directly welded with the frame longitudinal beam, and the weld is long and the stress is complex, so the reliability is poor. For another example, the support of the oil-gas suspension cylinder is usually a single ear plate or a welded support, which lacks effective multidirectional support, and the transmission efficiency of complex force flow is low, and there is a hidden danger of insecurity due to the dependence on a large number of welds. For another example, the overall front axle or connecting mechanism is mostly a welded part, which is relatively bulky in structure, has poor adaptability to complex roads, and it is difficult to ensure the reliability due to too many welding points.

[0038] Based on this, the present application provides a frame assembly of a mining vehicle, which comprises a main frame and a plurality of groups of supports, and the plurality of groups of supports are fixedly arranged on the main frame and used for mounting corresponding functional accessories; the main frame comprises left and right frame beams and a plurality of cross beams, each cross beam is located between the left and right frame beams, and the cross beam is fixedly inserted into the left and right frame beams; each group of supports comprises left and right supports, and the left and right supports are fixedly connected with the left and right frame beams, respectively; and the left and right supports of at least one group of supports are connected with both ends of at least one cross beam to form a cross beam structure.

[0039] In this way, the at least one cross beam of the frame assembly is connected with the support of the functional accessory, the two ends of the cross beam are inserted and fixed to the left frame beam and the right frame beam, and are connected with the left support and the right support arranged in groups respectively, a corresponding cross beam structure is formed, and the force flow transmission path of the frame is optimized. Therefore, the function of the cross beam is expanded, the mounting rigidity of the corresponding functional component support is improved on the basis of improving the torsional rigidity of the main frame by connecting the left and right frame beams, the structural efficiency and the functional integration are maximized through the cross beam connected with the support, and a stable and reliable bearing foundation is provided for the whole vehicle.

[0040] Here, the "functional accessory" refers to a component installed on the main frame, for example but not limited to a lifting cylinder, a suspension cylinder and a driving motor, the lifting cylinder can be installed on the main frame through a lifting support, the suspension cylinder can be installed on the main frame through a suspension support, and the driving motor can be installed on the main frame through a motor support.

[0041] Compared with the prior art, the cross beam connected with the support in the scheme of the present application can serve as a cross beam of the main frame and a connecting component of each functional component, and provides torsional strength and connection function, so that the cross beam is arranged flexibly, and the function of the cross beam of the frame is expanded. Through the synergistic effect of the flexible layout and the function expansion of the cross beam, the problem of easy deformation of the traditional frame due to insufficient rigidity is effectively improved, and the overall torsional rigidity of the main frame and the corresponding functional components is improved.

[0042] In order to better understand the technical scheme and technical effects of the present application, specific embodiments are described in detail below with reference to the accompanying drawings. Please refer to Figure 1 and Figure 2 wherein, Figure 1 is a schematic view of a frame assembly of a mining vehicle provided by the present application, Figure 2 is Figure 1 is a partial schematic view of the frame assembly shown in

[0043] Exemplarily, the frame assembly is used for a four-axle chassis, the chassis includes a front steering front axle, a first driving rear axle, a second driving steering rear axle and a third steering rear axle arranged in sequence from front to back, in specific implementation, the configuration mode of the driving axle and the steering axle can be determined according to the overall design requirement of the product, and the chassis can also be a five-axle structure or other configuration mode, and the present application embodiment is not limited. The positional words "front" and "rear" used herein, and the positional words "left" and "right" involved below, are defined with the vehicle as the description reference. It should be understood that the use of the above related positional words is used for clearly describing the relative position relationship between the scheme structure or the structure, and does not constitute a substantial limitation on the scheme of the present application.

[0044] As Figure 1As shown, the frame assembly 100 includes a main frame 10 and a plurality of supports. The main frame 10 includes a left frame beam 101, a right frame beam 102, a front ring beam 103, and a plurality of cross beams. The front ring beam 103 is fixedly installed at the front ends of the left frame beam 101 and the right frame beam 102. The cross beams between the left frame beam 101 and the right frame beam 102 are torsion tubes, which are the first torsion tube 1021, the second torsion tube 1022, the third torsion tube 1023, and the fourth torsion tube 1024 arranged from front to back in sequence.

[0045] Each torsion tube (the first torsion tube 1021, the second torsion tube 1022, the third torsion tube 1023, and the fourth torsion tube 1024) is inserted and fixed to the left frame beam 101 and the right frame beam 102 by welding to form the main frame 10 with good overall torsional stiffness. Of course, in other possible implementation schemes, the cross beams can adopt other structural forms, and are not limited to the torsion tube structure shown in the figure.

[0046] In the present embodiment, the plurality of supports fixedly arranged on the main frame 10 are respectively a front suspension oil cylinder support 201 for mounting a front axle suspension oil cylinder 301, a first rear suspension oil cylinder support 202 for mounting a first rear suspension oil cylinder 302, a second rear suspension oil cylinder support 203 for mounting a second rear suspension oil cylinder 303, a first drive motor support 204 for mounting a first rear axle drive motor, and a second drive motor support 205 for mounting a second rear axle drive motor.

[0047] It should be noted that each of the above supports includes a left support and a right support arranged symmetrically and fixed to the left frame beam 101 and the right frame beam 102, respectively. In specific implementation, each group of left supports and right supports can adopt the same structural configuration, so the right side view is shown, and the left side support structure is not fully shown.

[0048] The left support and the right support of the lifting oil cylinder support 206 are fixed to the left frame beam 101 and the right frame beam 102, respectively. Please refer to Figure 3 , which is an assembly relationship diagram of the first torsion tube, the lifting oil cylinder support, and the main frame shown in Figure 1 .

[0049] As shown in Figure 1 and Figure 3 , the first torsion tube 1021 is inserted and fixed to the left frame beam 101 and the right frame beam 102, and the two ends of the first torsion tube 1021 respectively extend out of the left frame beam 101 and the right frame beam 102. In specific implementation, the first torsion tube 1021 is connected through the circular openings of the left frame beam 101 and the right frame beam 102, and the connection is fixed by welding.

[0050] In the embodiment, the left and right supports of the lifting cylinder support 206 are respectively sleeved and fixed at the two ends of the first torsion cylinder 1021, and the connection is fixed by welding. As shown in the figure, the left and right supports of the lifting cylinder support 206 are respectively a three-point support mechanism in the shape of a sickle, which is fixedly connected with the main vehicle frame 10 through the first torsion cylinder 1021. Here, the first torsion cylinder 1021 as the vehicle frame beam has the function of improving the mounting rigidity of the lifting cylinder support 206, and thus improves the torsional resistance of the lifting cylinder support 206 and the main vehicle frame.

[0051] At the same time, the first torsion cylinder 1021 is also fixedly connected with the first driving motor support 204. Please see the assembly relationship of the first torsion cylinder and the first driving motor support shown in Figure 1 、 Figure 2 and Figure 4 , wherein, Figure 4 Figure 1 is a schematic diagram of the assembly relationship of the first torsion cylinder and the first driving motor support.

[0052] Specifically, the left and right supports of the first driving motor support 204 are respectively fixed at the lower parts of the left and right vehicle frame beams 101 and 102, and form a vehicle frame beam structure based on the first driving motor (not shown in the figure) mounted on the first driving motor support 204, which can improve the torsional resistance of the main vehicle frame.

[0053] The upper part of the first driving motor support 204 has a first connecting part 204a, which is connected with the first torsion cylinder 1021 through the first connecting part 204a, and the connection is fixed by welding. In a specific implementation, the first driving motor support 204 includes a rear support 2041 and a front support 2042, and the first driving motor can be fixedly connected with the rear support 2041 and the front support 2042 respectively, and is welded and fixed with the left and right vehicle frame beams 101 and 102 through the second connecting parts 204b on the rear support 2041 and the front support 2042 respectively. It has good mounting reliability.

[0054] Among them, the left and right supports of the second driving motor support 205 are respectively fixed at the lower parts of the left and right vehicle frame beams 101 and 102, and the mounting base on the shell of the second driving motor (not shown in the figure) can be directly connected with the mounting surface on the second driving motor support 205 through high-strength bolts, and a vehicle frame beam structure is formed based on the second driving motor mounted on the second driving motor support 205, which can improve the torsional resistance of the main vehicle frame.

[0055] Similarly, the upper part of the second driving motor support 205 is connected with the third torsion cylinder 1023 through a first connecting part, combined with Figure 1 and Figure 2 ​As shown, two ends of the third torsion tube 1023 respectively extend out of the left frame beam 101 and the right frame beam 102. In a specific implementation, the third torsion tube 1023 is connected through the circular openings of the left frame beam 101 and the right frame beam 102 respectively, and the connection is fixed by welding. Here, the third torsion tube 1023 as the frame beam has the effect of improving the mounting rigidity of the second driving motor support 205, and thus improves the torsional stiffness of the second driving motor support 205 and the main frame.

[0056] In a specific implementation, the second driving motor support 205 includes a rear support and a front support, and the second driving motor can be fixedly connected with the rear support and the front support respectively, and is welded and fixed with the left frame beam 101 and the right frame beam 102 through the second connecting portions on the rear support and the front support respectively.

[0057] Of course, in other possible implementation schemes, the first driving motor support 204 and the second driving motor support 205 can also have other structural forms, which are not limited by the embodiments of the application.

[0058] As shown in FIG. 2, the left support and the right support of the first rear suspension oil cylinder support 202 are fixed on the left frame beam 101 and the right frame beam 102 respectively. Please also refer to Figure 1 、 Figure 2 and Figure 5 wherein, Figure 5 is Figure 1 the second torsion tube, the first rear suspension oil cylinder support and the main frame shown in FIG. 2.

[0059] The second torsion tube 1022 is inserted and fixed in the left frame beam 101 and the right frame beam 102, and two ends of the second torsion tube 1022 respectively extend out of the left frame beam 101 and the right frame beam 102. In a specific implementation, the second torsion tube 1022 is connected through the circular openings of the left frame beam 101 and the right frame beam 102 respectively, and the connection is fixed by welding.

[0060] In the embodiment, the left support and the right support of the first rear suspension oil cylinder support 202 respectively include a mounting plate 2021 and two ear plates 2022, please also refer to Figure 1 、 Figure 2 and Figure 5 wherein, Figure 5 is Figure 1 the second torsion tube, the first rear suspension oil cylinder support and the main frame shown in FIG. 2.

[0061] In the embodiment, two ears 2022 for connecting with the first rear suspension oil cylinder 302 are arranged on the mounting plate 2021 at intervals, and the connection is fixed by welding. The mounting plate 2021 is fixed by welding with the main frame 10 (the left frame beam 101 and the right frame beam 102); correspondingly, the upper cover plate 10a of the left frame beam 101 and the right frame beam 102 has a first mounting portion 10a1 extending outward, and the upper edges of the mounting plate 2021 and the two ears 2022 are welded with the lower surface of the first mounting portion 10a1 of the upper cover plate, forming a support structure.

[0062] The mounting plate 2021 of the left support of the first rear suspension oil cylinder support 202 and the mounting plate 2021 of the right support thereof are respectively sleeved and fixed at both ends of the second torsion cylinder 1022, and the connection is fixed by welding. Here, the second torsion cylinder 1022 as the frame beam has the effect of improving the mounting rigidity of the first rear suspension oil cylinder support 202, and thereby improves the torsional resistance of the first rear suspension oil cylinder support 202 and the main frame.

[0063] Similarly, the left support and the right support of the second rear suspension oil cylinder support 203 are respectively fixed on the left frame beam 101 and the right frame beam 102. As shown Figure 1 The fourth torsion cylinder 1024 is inserted and fixed on the left frame beam 101 and the right frame beam 102, and both ends of the fourth torsion cylinder 1024 respectively extend out of the left frame beam 101 and the right frame beam 102. In the specific implementation, the fourth torsion cylinder 1024 is connected through the circular openings of the left frame beam 101 and the right frame beam 102 respectively, and the connection is fixed by welding.

[0064] In the embodiment, the left support and the right support of the second rear suspension oil cylinder support 203 can also respectively include a mounting plate and two ears, and the two ears are used for connecting with the second rear suspension oil cylinder 303 and fixed with the main frame by the mounting plate. The specific structure can be the same as that of the first rear suspension oil cylinder support 202, which will not be described herein.

[0065] Correspondingly, the upper cover plate of the left frame beam 101 and the right frame beam 102 has a second mounting portion 10a2 extending outward, and the upper edges of the mounting plate 2021 and the two ears 2022 of the second rear suspension oil cylinder support 203 can be welded with the lower surface of the second mounting portion 10a2 of the upper cover plate, forming a support structure. The mounting plates of the left support and the right support of the second rear suspension oil cylinder support 203 are respectively sleeved and fixed at both ends of the fourth torsion cylinder 1024, and the connection is fixed by welding. Here, the fourth torsion cylinder 1024 as the frame beam has the effect of improving the mounting rigidity of the second rear suspension oil cylinder support 203, and thereby improves the torsional resistance of the second rear suspension oil cylinder support 203 and the main frame.

[0066] In a specific implementation, the fourth torsion cylinder 1024 is provided in two, and the two fourth torsion cylinders 1024 are arranged at intervals. For a bumpy road, the two rear wheels will not jump at the same time, which will cause the left and right second rear suspension oil cylinders 303 to be subjected to asymmetric and huge impact loads, and the tail of the main vehicle frame 10 is open, and the fourth torsion cylinder 1024 can strengthen the structure of the tail of the main vehicle frame 10 and effectively cope with extreme asymmetric loads.

[0067] The left support of the front suspension oil cylinder support 201 and the right support are respectively mounted on the two sides of the front rim beam 103, and form a support structure with the front rim beam 103. Please see Figure 1 and Figure 6 , wherein, Figure 6 is Figure 1 the assembly relationship between the front rim beam, the front suspension oil cylinder support, the front suspension oil cylinder support and the main vehicle frame shown in the front rim beam.

[0068] The front axle force transmission mechanism 207 of the frame assembly 100 is mounted at the front end of the left frame beam 101 and the right frame beam 102, and is connected with the front rim beam 103. The front axle force transmission mechanism 207 can bear various loads from the wheels, wherein most of the longitudinal force and lateral force is transmitted to the front end of the frame through the front axle force transmission mechanism 207, and the vertical force is transmitted to the front rim beam 103. In the present embodiment, the front axle force transmission mechanism 207 adopts a disconnected front axle, and the two wheels are independently connected through a joint structure and are respectively connected with the suspension system below the frame. In this way, independent movement of the two wheels without interference is allowed, thereby effectively improving the adaptability of the vehicle to rough roads.

[0069] In a specific implementation, the front suspension can be a McPherson suspension mechanism and a full oil gas suspension system, which can comprehensively improve the damping performance and adaptability of the vehicle to complex road conditions, and finally realize significant improvement in the reliability, durability and use performance of the frame.

[0070] In order to reduce the welding seam, in a specific implementation, the front axle force transmission mechanism 207 is formed by casting process, please see Figure 7 , which is a structural schematic diagram of a front axle force transmission mechanism provided by the embodiment of the application. In this way, the front axle force transmission mechanism 207 has high structural strength and can effectively reduce the influence of the welding seam.

[0071] In a specific implementation, the left frame beam 101 and the right frame beam 102 of the main vehicle frame 10 respectively include an upper cover plate 10a, two web plates 10b and a lower cover plate 10c. Please see Figure 8 , which is a cross-sectional schematic diagram of the left frame beam and the right frame beam described in the embodiment of the application.

[0072] To further reduce the weld, the upper cover plate 10a of the left frame beam 101 and the right frame beam 102 can be provided with a first set of bolt holes 10a3 and a second set of bolt holes 10a4, please see Figure 1 and Figure 9 wherein, Figure 9 is Figure 1 The assembly explosion diagram of the main frame and the battery box support and the cab platform support is shown in FIG. 5.

[0073] As shown in the figure, the battery box support 304 can be connected to the first set of bolt holes 10a3 of the left frame beam 101 and the right frame beam 102 by bolts, and the cab platform 305 can be connected to the second set of bolt holes 10a4 of the left frame beam 101 and the right frame beam 102 by bolts.

[0074] In this way, the battery box support and the cab platform are connected by full bolts, which is simple in structure, low in cost, convenient to disassemble and maintain, and suitable for complex working conditions of new energy mining vehicles. Overall, the risk of fatigue cracking of traditional welded frames is reduced. The static strength of the connection part is significantly improved, the dynamic fatigue performance is greatly improved, and the long-term reliability and service life of the frame under harsh working conditions are improved.

[0075] In addition to the frame assembly 100 of the mining vehicle as described above, the embodiment of the present application also provides a mining vehicle which adopts the frame assembly 100 as described above. It should be understood that other functional components of the mining vehicle are not the core of the present application, and those skilled in the art can use existing technology to achieve it, so this text will not be repeated.

[0076] It should be noted that the ordinal numbers used in the above embodiments provided by the present embodiment are used to distinguish the same functional components or structures, and it should be understood that the application of the above ordinal numbers is only used to distinguish different limited objects, and does not constitute a substantial limitation on the mining vehicle chassis claimed by the present application.

[0077] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A chassis assembly for a mining vehicle, characterized in that, The vehicle frame assembly includes a main frame and multiple sets of supports. The multiple sets of supports are fixedly mounted on the main frame for mounting corresponding functional accessories. The main frame includes a left frame beam, a right frame beam, and multiple crossbeams. Each crossbeam is a torsion cylinder, and is arranged sequentially from front to back as a first torsion cylinder, a second torsion cylinder, a third torsion cylinder, and a fourth torsion cylinder. The first, second, third, and fourth torsion cylinders are respectively inserted and fixed to the left and right frame beams, and both ends of the first, second, third, and fourth torsion cylinders extend out of the left and right frame beams, respectively. Each set of supports includes a left support and a right support, and the left and right supports are fixedly connected to the left and right frame beams, respectively. The multiple sets of supports include lifting cylinder supports for mounting lifting cylinders. The left and right supports of the lifting cylinder supports are respectively fitted and fixed to both ends of the first torsion cylinder to form a crossbeam structure. The multiple sets of supports also include a first rear suspension cylinder support for mounting the first rear suspension cylinder. The left and right supports of the first rear suspension cylinder support are respectively fitted and fixed to both ends of the second torsion cylinder to form a crossbeam structure. The multiple sets of supports also include a second rear suspension cylinder support for mounting the second rear suspension cylinder. The left and right supports of the second rear suspension cylinder support are respectively fitted and fixed to both ends of the fourth torsion cylinder to form a crossbeam structure.

2. The chassis assembly of the mining vehicle according to claim 1, characterized in that, The plurality of supports also includes a first drive motor support for mounting the first drive motor. The left and right supports of the first drive motor support are respectively fixedly connected to the first torque cylinder through a first connecting part, and respectively fixed to the lower part of the left frame beam and the right frame beam through a second connecting part.

3. The chassis assembly of the mining vehicle according to claim 2, characterized in that, The plurality of supports also includes a second drive motor support for mounting the second drive motor. The left and right supports of the second drive motor support are respectively fixedly connected to the third torsion cylinder through the first connecting part, and respectively fixed to the lower part of the left frame beam and the right frame beam through the second connecting part.

4. The chassis assembly of the mining vehicle according to claim 1, characterized in that, The left and right supports of the first rear suspension cylinder support each include a mounting plate and two ear plates. The two ear plates are fixedly disposed on the mounting plate at intervals for connection with the first rear suspension cylinder. The mounting plate is welded and fixed to the left and right frame beams on the corresponding sides. The upper cover plates of the left and right frame beams have outwardly extending first mounting portions. The upper edges of the mounting plate and the two ear plates are welded and fixed to the lower surface of the first mounting portions of the upper cover plates.

5. The chassis assembly of the mining vehicle according to claim 1, characterized in that, The left and right supports of the second rear suspension cylinder support each include a mounting plate and two ear plates. The two ear plates are fixedly disposed on the mounting plate at intervals for connection with the second rear suspension cylinder. The mounting plate is welded and fixed to the left and right frame beams on the corresponding sides. The upper cover plates of the left and right frame beams have outwardly extending second mounting portions. The upper edges of the mounting plate and the two ear plates are welded and fixed to the lower surface of the second mounting portions of the upper cover plate.

6. The chassis assembly of the mining vehicle according to claim 1, characterized in that, The main frame also includes a front ring beam, which is fixedly installed at the front ends of the left frame beam and the right frame beam; the multiple sets of supports also include front suspension cylinder supports for mounting the front axle suspension cylinders, with the left and right supports of the front suspension cylinder supports respectively installed on both sides of the front ring beam.

7. The chassis assembly of the mining vehicle according to claim 6, characterized in that, The frame assembly also includes a front axle force transmission mechanism, which is formed by casting and is installed and fixed to the front end of the left frame beam and the right frame beam, and is connected to the front ring beam.

8. A mining vehicle, characterized in that, The mining vehicle adopts the chassis assembly of the mining vehicle as described in any one of claims 1 to 7.

Images