Ring beam of off-highway mining dump truck

Abstract

The utility model discloses an off-highway mining dump truck ring beam which comprises an upper ring beam assembly, a left connecting block, a right connecting block and a steering rocker arm support, the right connecting block and the left connecting block are connected with the upper ring beam assembly in an inserted mode, and meanwhile the right connecting block and the left connecting block are connected with the steering rocker arm support in an inserted mode. The right connecting block and the left connecting block are fixedly connected with the upper ring beam assembly, and the top of the upper ring beam assembly forms an integrated installation face and is provided with installation points of a cab and a platform assembly. According to the utility model, a plug-in lap joint mode is adopted, so that the volume and the weight of the left connecting block and the right connecting block are reduced, the number of welding seams is reduced, the strength of the ring beam is ensured, and the overall reliability of a vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of off-highway mining dump trucks. More specifically, this utility model relates to the ring beam of an off-highway mining dump truck. Background Technology

[0002] Off-highway dump trucks are key equipment in open-pit coal mines, cement and building material mines, sand and gravel aggregate mines, metal and non-metal mines, water conservancy and hydropower projects, and large-scale engineering mining and construction. They are characterized by frequent loading and unloading, heavy load capacity, short transport distances, and long continuous working hours. Off-highway dump trucks often travel on winding, potholed roads, making road conditions more challenging than on-highway dump trucks. Combined with their heavier weight, the chassis, which bears the weight of major components such as the engine, chassis, cab, fuel tank, and cargo box, is more susceptible to damage and cracking. The stress on the chassis ring beam assembly is particularly severe. As the benchmark for chassis and overall vehicle design, the ring beam assembly connects the front and middle longitudinal beams. The ring beam location is the most complex and stress-bearing part of the entire vehicle. It must provide sufficient torsional support for the overall chassis. Furthermore, the ring beam assembly typically serves as the mounting point for the cab and platform components, making it a crucial component of the chassis assembly.

[0003] The existing ring beam assembly structure of mining dump trucks generally consists of left and right connecting blocks made of cast steel, steering rocker arm supports, an upper ring beam assembly, and cab and platform mounting plates. The left and right connecting blocks have upper mounting points for connecting the front suspension cylinders. The upper ring beam is generally a four-plate welded component. A portion of the upper ring beam is fixedly connected between the left and right connecting blocks, and the remaining portion extends outwards from both ends of the left and right connecting blocks, forming mounting points for the cab and platform components. Because the upper ring beam assembly is welded multiple times, the supports for mounting the cab and platform components are uneven on both sides. This makes installation of the cab and platform components difficult and uneven. Multiple welding operations increase the number of welds. The upper ring beam assembly mainly bears the torsional force from the frame's torsion. Prolonged torsion leads to fatigue failure at the welds, causing the upper ring beam to crack, which is often irreparable or poorly repaired. This can lead to frame failure, resulting in prolonged downtime or even the scrapping of the entire vehicle. Summary of the Invention

[0004] This utility model provides a ring beam for off-highway mining dump trucks, which adopts an insert-type overlapping method, reducing the volume and weight of the left and right connecting blocks, reducing the number of welds, ensuring the strength of the ring beam, and improving the overall reliability of the vehicle. In order to achieve these objectives and other advantages of this utility model, an off-highway mining dump truck ring beam is provided, including an upper ring beam assembly (1), a right connecting block (2), a left connecting block (4), and a steering rocker arm support (3). The right connecting block (2) and the left connecting block (4) are inserted into the upper ring beam assembly (1) above, and at the same time, the right connecting block (2) and the left connecting block (4) are fixedly connected to the upper ring beam assembly (1). The top of the upper ring beam assembly (1) forms an integrated mounting surface and has mounting points for the cab and platform components.

[0005] Preferably, the upper ring beam assembly (1) also has an upper mounting point for the front suspension cylinder.

[0006] Preferably, the right connecting block (2) and the left connecting block (4) are plugged into the steering rocker arm support (3), and at the same time, the right connecting block (2) and the left connecting block (4) are fixedly connected to the steering rocker arm support (3).

[0007] Preferably, the right connecting block (2), the left connecting block (4) and the steering rocker arm support (3) are integrally formed castings.

[0008] Preferably, the upper ring beam assembly (1) includes an upper mounting plate (103), a lower sealing plate (113), a front side plate (116), a rear side plate (105), a left sealing plate (111), and a right sealing plate (118), wherein the upper mounting plate (103) is fixedly connected to the front side plate (116) and the rear side plate (105);

[0009] The lower sealing plate (113) is fixedly connected to the front side plate (116) and the rear side plate (105);

[0010] The left sealing plate (111) and the right sealing plate (118) are located on the left and right sides of the lower sealing plate (113), and the left sealing plate (111) and the right sealing plate (118) are fixedly connected to the upper mounting plate (103), the front side plate (116), and the rear side plate (105).

[0011] The upper mounting plate (103), lower sealing plate (113), front side plate (116), rear side plate (105), left sealing plate (111), and right sealing plate (118) form a space with a lower opening for the insertion of the right connecting block (2) and the left connecting block (4).

[0012] Preferably, the upper ring beam assembly (1) further includes a pair of reinforcing ribs, which are located on the left and right outer sides of the left sealing plate (111) and the right sealing plate (118), respectively. The reinforcing ribs include:

[0013] The end plate is fixedly connected to the ends of the upper mounting plate (103), the front side plate (116), and the rear side plate (105);

[0014] The horizontal stiffening plate is fixedly connected to the upper mounting plate (103), the outer stiffening plate (109), and the end plate;

[0015] The box-shaped panel assembly includes a front panel (110), a rear panel (117), an inner stiffening plate (114), and an outer stiffening plate (109). The box-shaped panel assembly has a U-shaped structure. The front panel (110) and the rear panel (117) are provided with a plurality of fixed connection holes and are fixedly connected to the front side panel (116) and the rear side panel (105).

[0016] The inner stiffening plate (114) and outer stiffening plate (109) are fixedly connected to the upper mounting plate (103), the front side plate (116), and the rear side plate (105). The front side plate (116), the rear side plate (105), the front mounting plate (110), and the rear mounting plate (117) are provided with through pin holes for installing the front suspension cylinder.

[0017] Preferably, the left connecting block (4) and the right connecting block (2) both form flat interfaces on opposite sides, and the left and right sides of the steering rocker arm support (3) both form flat connecting plates. The flat connecting plates are inserted into the flat interfaces and fixedly connected, or

[0018] The left connecting block (4) and the right connecting block (2) each form a flat connecting plate on opposite sides. The left and right sides of the steering rocker arm support (3) form flat interfaces. The flat connecting plate is inserted into the flat interface and fixedly connected.

[0019] Preferably, the upper mounting plate (103) has a cab mounting hole, and the upper mounting plate (103) also has a platform mounting bracket (102) for the platform assembly.

[0020] Preferably, bushings (106) are provided in the pin holes of the front side plate (116) and the rear side plate (105), and pin pressure plate seats (115) are also provided on the outer periphery of the pin holes of the front side plate (116) and the rear side plate (105).

[0021] Preferably, the front side plate (116) is also provided with a pair of tube beam mounting plates (112).

[0022] Off-highway mining dump truck, including the aforementioned off-highway mining dump truck ring beam.

[0023] This utility model has at least the following beneficial effects:

[0024] First, the top of the upper ring beam assembly (1) of this utility model forms an integrated mounting surface, avoiding the use of multi-segment welding, which can reduce the number of welds and avoid the problem of uneven installation of the cab and platform components caused by multiple fixed connections. The upper ring beam assembly (1) has a cab mounting point on the left and a platform component mounting point on the right. The upper ring beam assembly (1) also has an upper mounting point for the front suspension cylinder. The left connecting block (4) and the right connecting block (2) are connected to the front beam and the rear beam as part of the longitudinal beam. The upper ring beam assembly (1), the left connecting block (4), the right connecting block (2), and the steering rocker arm support (3) have connection interfaces, which reduces the volume and weight of the left connecting block (4) and the right connecting block (2) and ensures the strength of the ring beam.

[0025] Secondly, the left connecting block (4), right connecting block (2) of this utility model are fixedly connected to the steering rocker arm support (3) by plug-in connection, and the left connecting block (4), right connecting block (2) are fixedly connected to the upper ring beam assembly (1) by plug-in connection. The "insertion" overlapping method can realize the positioning and padding function, improve the positioning accuracy of the connection of each component, facilitate the assembly of each component, enhance the connection firmness, and reduce the risk of connection failure caused by vibration or impact.

[0026] Third, the upper ring beam assembly (1) of this utility model adopts a multi-plate welded structure made of plates with different cross sections, which optimizes the structure of the upper ring beam assembly (1). The shape, position and connection method of each component can improve the stability and connection strength of the overall structure. In particular, the upper mounting plate (103) reduces the number of welds and avoids the problem of uneven installation of the cab and platform components caused by multiple fixed connections.

[0027] Fourth, the reinforcing rib group of this utility model improves the structural strength and load-bearing capacity of the upper ring beam assembly (1). The fixed connection holes in the box plate assembly and the fixed connection of each component ensure the firm combination of the reinforcing rib group and each component of the upper ring beam assembly (1). The shape, position and connection method of the end plate, box plate assembly and transverse stiffener plate enable the upper ring beam assembly (1) to withstand greater loads.

[0028] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the technical solution of this utility model;

[0030] Figure 2 This is a structural schematic diagram of the upper ring beam assembly of the present utility model. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0032] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] like Figure 1-2 As shown, this utility model provides a ring beam for off-highway mining dump trucks, which includes an upper ring beam assembly (1), a left connecting block (4), a right connecting block (2), and a steering rocker arm support (3). The right connecting block (2) and the left connecting block (4) are inserted into the upper ring beam assembly (1) above. At the same time, the right connecting block (2) and the left connecting block (4) are fixedly connected to the upper ring beam assembly (1). Specifically, the insertion can be achieved by vertical insertion, and then the connection can be achieved by fixed connection. The fixed connection can be achieved by welding. The top of the upper ring beam assembly (1) forms an integrated mounting surface and has mounting points for the cab and platform components. The integrated mounting surface can be achieved by a single top plate. The upper ring beam assembly (1) can be a fully cast structure or can be formed by welding multiple plates, which changes the previous segmented welding form.

[0035] In the above technical solution, the plug-in fixed connection ensures the robustness of the connection between components and reduces the risk of connection failure due to factors such as vibration. The integrated mounting surface and multiple mounting points provide a level mounting base for the cab and platform components, optimizing the overall structural layout of the vehicle.

[0036] The upper ring beam assembly (1) of this utility model forms an integrated mounting surface on the top, which can reduce the number of welds and avoid the problem of uneven installation of the cab and platform components caused by multiple fixed connections. The cab mounting point is arranged on the left side of the upper ring beam assembly (1), and the platform component mounting point is arranged on the right side. The left connecting block (4) and the right connecting block (2) are connected to the front beam and the rear beam as part of the longitudinal beam. The upper ring beam assembly (1), the left connecting block (4), the right connecting block (2), and the steering rocker arm support (3) have connection interfaces, which reduces the volume and weight of the left connecting block (4) and the right connecting block (2) and ensures the strength of the ring beam.

[0037] In another technical solution, the upper ring beam assembly (1) also has an upper mounting point for the front suspension cylinder, which changes the previous design of the left connecting block (4) and right connecting block (2) extending upwards with a large volume and setting an upper mounting point, thus reducing the volume and weight of the left connecting block (4) and right connecting block (2).

[0038] In another technical solution, the right connecting block (2) and the left connecting block (4) are plugged into the steering rocker arm support (3), and simultaneously, the right connecting block (2) and the left connecting block (4) are fixedly connected to the steering rocker arm support (3). The steering rocker arm support (3) is provided between the left connecting block (4) and the right connecting block (2), and the left connecting block (4) and the right connecting block (2) are fixedly connected to the steering rocker arm support (3) in a plugging manner. Specifically, the plugging can be achieved by using a horizontal plug plate and a socket, and then the connection can be achieved by a fixed connection, which can be achieved by welding. The plugging method of fixed connection ensures the firmness of the connection of each component and reduces the risk of connection failure due to vibration and other factors.

[0039] In another technical solution, the right connecting block (2), the left connecting block (4), and the steering rocker arm support (3) are integrally cast parts. The integral design simplifies the manufacturing and assembly process, reduces the steps of manufacturing and assembling the right connecting block, the left connecting block, and the steering rocker arm support separately, and only requires one casting operation, which improves production efficiency, significantly enhances the strength of the overall structure, and eliminates the weak links that may exist in the traditional connection method.

[0040] In another technical solution, the upper ring beam assembly (1) includes an upper mounting plate (103), a lower sealing plate (113), a front side plate (116), a rear side plate (105), a left sealing plate (111), and a right sealing plate (118). The upper mounting plate (103) forms the integrated mounting surface and is a single panel. The upper mounting plate (103) is fixedly connected to the front side plate (116) and the rear side plate (105) by means of fillet welds. Welding is preferred for this fixed connection. The lower sealing plate (113) can be a C-shaped structure with a rounded transition. The lower sealing plate (113) is provided with a bevel and is fixedly connected to the front side plate (116) and the rear side plate (105). A 45° bevel can be opened on one side for fixed connection to the front side plate (116) and the rear side plate (105). Welding is preferred for this fixed connection. The left sealing plate (111) and the right sealing plate (118) are located on the left and right sides of the lower sealing plate (113) and form a certain distance. The left sealing plate (111) and the right sealing plate (118) are both provided with bevels and are fixedly connected to the upper mounting plate (103), the front side plate (116), and the rear side plate (105). The fixed connection here is preferably welded to ensure the strength of the fixed connection. The upper mounting plate (103), the lower sealing plate (113), the front side plate (116), the rear side plate (105), the left sealing plate (111), and the right sealing plate (118) form a space with a lower opening for the insertion of the right connecting block (2) and the left connecting block (4). Specifically, a pair of bends in the lower sealing plate (113), the left sealing plate (111), and the right sealing plate (118) are provided with fixed connection holes for plug welding to ensure sufficient connection strength with the frame.

[0041] In the above technical solution, the upper ring beam assembly (1) adopts a multi-plate welded structure made of plates with different cross sections. When the upper mounting plate (103) is fixedly connected to the front side plate (116) and the rear side plate (105), fillet welds are used for fixed connection. The lower sealing plate (113) is fixedly connected to the front side plate (116) and the rear side plate (105) with beveled opening. The structure of the upper ring beam assembly (1) is optimized. The shape, position and connection method of each component can improve the stability and connection strength of the overall structure. In particular, the upper mounting plate (103) reduces the number of welds and avoids the problem of uneven installation of the cab and platform components caused by multiple fixed connections.

[0042] In another technical solution, the upper ring beam assembly (1) further includes a pair of reinforcing ribs, which are located on the left and right outer sides of the left sealing plate (111) and the right sealing plate (118), respectively. The pair of reinforcing ribs are symmetrical to each other and are used to strengthen the upper ring beam structure. The reinforcing ribs include:

[0043] The end plate is fixedly connected to the ends of the upper mounting plate (103), the front side plate (116), and the rear side plate (105), further strengthening the closed structure of the upper ring beam assembly (1);

[0044] The box-type panel assembly consists of a front panel (110), a rear panel (117), an inner stiffening plate (114), and an outer stiffening plate (109) forming a U-shaped structure. The front panel (110) and the rear panel (117) are provided with welding holes and are welded to the front side panel (116) and the rear side panel (105) for plug welding to strengthen the structure at the suspension cylinder support. The front panel (110) and the rear panel (117) are also welded to the left connecting block (4) and the right connecting block (2). To improve the overall torsional stiffness of the frame beam assembly, the inner stiffening plate (114) and outer stiffening plate (109) are welded to the upper mounting plate (103), front side plate (116), and rear side plate (105) using three-sided fillet welds. The front side plate (116), rear side plate (105), front panel plate (110), and rear panel plate (117) are provided with through pin holes to form the upper mounting point of the front suspension cylinder. The box-type plate assembly provides local reinforcement to the suspension cylinder mounting seat.

[0045] The transverse stiffening plate, which is welded to the upper mounting plate (103), the outer stiffening plate (109), and the end plate, is fixed by welding with three-sided fillet welds, and plays a crucial role in the transverse stiffness of the upper ring beam.

[0046] The left end plate (107) has a mounting point for the walkway beam, the right end plate (101) is a single closed plate, the left transverse stiffener plate (108) has a cab mounting port, and the right transverse stiffener plate (104) is a smooth panel.

[0047] In the above technical solution, the reinforcing rib group improves the structural strength and load-bearing capacity of the upper ring beam assembly (1). The fixed connection holes in the box plate assembly and the fixed connection of each component ensure the firm combination of the reinforcing rib group and each component of the upper ring beam assembly (1). The shape, position and connection method of the end plate, box plate assembly and cross stiffener plate enable the upper ring beam assembly (1) to withstand greater loads. It forms a box structure with the stiffener plates set at the left and right positions of the lower sealing plate (113). It is inserted into the upper interface of the left connecting block (4) and the right connecting block (2) to play a local strengthening role. The shape, position and connection method of each component can improve the stability and connection strength of the overall structure. In particular, the upper mounting plate (103) reduces the number of welds and avoids the problem of uneven installation of the cab and platform components caused by multiple fixed connections.

[0048] In another technical solution,

[0049] The left connecting block (4) and the right connecting block (2) each form a flat interface on opposite sides. The left and right sides of the steering rocker arm support (3) each form a flat connecting plate. The flat connecting plate is inserted into the flat interface and fixedly connected, or

[0050] The left connecting block (4) and the right connecting block (2) each form a flat connecting plate on opposite sides. The left and right sides of the steering rocker arm support (3) form flat interfaces. The flat connecting plate is inserted into the flat interface and fixedly connected.

[0051] In the above technical solution, the left connecting block (4), the right connecting block (2) and the steering rocker arm support (3) are fixedly connected by plug-in method, and the left connecting block (4), the right connecting block (2) and the upper ring beam assembly (1) are fixedly connected by plug-in method. Specifically, a U-shaped plug or an I-shaped plug can be used. There are no specific restrictions. The "insertion" overlapping method can realize the positioning and pad function, improve the positioning accuracy of the connection of each component, facilitate the assembly of each component, enhance the firmness of the connection, and reduce the risk of connection failure caused by vibration or impact.

[0052] In another technical solution, the upper mounting plate (103) has a cab mounting hole on its left side and a platform mounting bracket (102) for the platform assembly on its right side. The cab mounting hole and the cab mounting opening together form a cab mounting point. The cab mounting hole and the platform mounting bracket (102) provide an integrated mounting point of equal height for the cab and platform assembly, ensuring the accuracy and firmness of the installation, facilitating the installation operation, improving the assembly efficiency of the vehicle and the rationality of the overall structure, and providing a guarantee for the safety and comfort of the vehicle during use.

[0053] In another technical solution, bushings (106) are provided in the pin holes of the front side plate (116) and the rear side plate (105), and are connected to the front side plate (116) and the rear side plate (105) by fillet welds, which strengthens the connection of the suspension cylinder support. Pin pressure plate seats (115) are also provided on the outer periphery of the pin holes of the front side plate (116) and the rear side plate (105), which enhances the connection firmness at the pin holes, ensures the reliability of the connection of related components, reduces maintenance costs, and improves the stability and durability of vehicle operation.

[0054] In another technical solution, the front side plate (116) is also provided with a pair of tube beam mounting plates (112), which are connected to the front side plate (116) and the rear side plate (105) by means of circular plug welding holes for connecting the left and right tube beams, thereby optimizing the structural layout of the vehicle, making the vehicle structure more compact, and improving the overall performance and practicality.

[0055] The off-highway mining dump truck includes the aforementioned off-highway mining dump truck ring beam. Integrating the optimized ring beam structure into the vehicle enhances its overall strength, strengthens its load-bearing capacity and stability under harsh working conditions, improves its working efficiency and service life, and ensures the vehicle's safety and overall reliability during heavy-duty transportation.

[0056] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0057] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A ring beam for a non-highway mining dump truck, comprising an upper ring beam assembly (1), a right connecting block (2), a left connecting block (4), and a steering rocker arm support (3), characterized in that, The right connecting block (2) and the left connecting block (4) are inserted into the upper ring beam assembly (1) above. At the same time, the right connecting block (2) and the left connecting block (4) are fixedly connected to the upper ring beam assembly (1). The top of the upper ring beam assembly (1) forms an integrated mounting surface and has mounting points for the cab and platform components.

2. The off-highway mining dump truck ring beam as described in claim 1, characterized in that, The upper ring beam assembly (1) also has an upper mounting point for the front suspension cylinder.

3. The off-highway mining dump truck ring beam as described in claim 1, characterized in that, The right connecting block (2) and the left connecting block (4) are inserted into the steering rocker arm support (3), and at the same time, the right connecting block (2) and the left connecting block (4) are fixedly connected to the steering rocker arm support (3).

4. The off-highway mining dump truck ring beam as described in claim 1, characterized in that, The right connecting block (2), the left connecting block (4) and the steering rocker arm support (3) are integrally formed castings.

5. The off-highway mining dump truck ring beam as described in claim 1, characterized in that, The upper ring beam assembly (1) includes an upper mounting plate (103), a lower sealing plate (113), a front side plate (116), a rear side plate (105), a left sealing plate (111), and a right sealing plate (118). The upper mounting plate (103) is fixedly connected to the front side plate (116) and the rear side plate (105). The lower sealing plate (113) is fixedly connected to the front side plate (116) and the rear side plate (105); The left sealing plate (111) and the right sealing plate (118) are located on the left and right sides of the lower sealing plate (113), and the left sealing plate (111) and the right sealing plate (118) are fixedly connected to the upper mounting plate (103), the front side plate (116), and the rear side plate (105). The upper mounting plate (103), lower sealing plate (113), front side plate (116), rear side plate (105), left sealing plate (111), and right sealing plate (118) form a space with a lower opening for the insertion of the right connecting block (2) and the left connecting block (4).

6. The off-highway mining dump truck ring beam as described in claim 5, characterized in that, The upper ring beam assembly (1) also includes a pair of reinforcing ribs, which are located on the left and right outer sides of the left sealing plate (111) and the right sealing plate (118), respectively. The reinforcing ribs include: The end plate is fixedly connected to the ends of the upper mounting plate (103), the front side plate (116), and the rear side plate (105); The box-shaped panel assembly includes a front panel (110), a rear panel (117), an inner stiffening plate (114), and an outer stiffening plate (109). The box-shaped panel assembly has a U-shaped structure. The front panel (110) and the rear panel (117) are provided with a plurality of fixed connection holes and are fixedly connected to the front side panel (116) and the rear side panel (105). The horizontal stiffening plate is fixedly connected to the upper mounting plate (103), the outer stiffening plate (109), and the end plate; The inner stiffening plate (114) and outer stiffening plate (109) are fixedly connected to the upper mounting plate (103), the front side plate (116), and the rear side plate (105). The front side plate (116), the rear side plate (105), the front mounting plate (110), and the rear mounting plate (117) are provided with through pin holes for installing the front suspension cylinder.

7. The off-highway mining dump truck ring beam as described in claim 1, characterized in that, The left connecting block (4) and the right connecting block (2) each form a flat interface on opposite sides. The left and right sides of the steering rocker arm support (3) each form a flat connecting plate. The flat connecting plate is inserted into the flat interface and fixedly connected. The left connecting block (4) and the right connecting block (2) each form a flat connecting plate on opposite sides. The left and right sides of the steering rocker arm support (3) form flat interfaces. The flat connecting plate is inserted into the flat interface and fixedly connected.

8. The off-highway mining dump truck ring beam as described in claim 5, characterized in that, The upper mounting plate (103) has a cab mounting hole and the upper mounting plate (103) also has a platform mounting bracket (102) for the platform assembly.

9. The off-highway mining dump truck ring beam as described in claim 5, characterized in that, The pin holes of the front side plate (116) and the rear side plate (105) are provided with bushings (106), and the outer periphery of the pin holes of the front side plate (116) and the rear side plate (105) is also provided with pin pressure plate seats (115).

10. The off-highway mining dump truck ring beam as described in claim 5, characterized in that, The front side plate (116) is also provided with a pair of pipe beam mounting plates (112).

11. An off-highway mining dump truck, characterized in that, Includes the off-highway mining dump truck ring beam as described in any one of claims 1-10.

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