Underground dumper cab and underground dumper

Abstract

The utility model discloses an underground dumper cab which comprises a front wall framework, a left side wall framework, a right side wall framework, a rear wall framework, a ceiling framework and a bottom plate framework, and the ceiling framework and the bottom plate framework are connected through the front wall framework, the left side wall framework, the right side wall framework and the rear wall framework. The length and the width of the ceiling framework are both larger than the length and the width of the bottom plate framework, the front suspension assemblies are fixedly connected with the front side of the front wall framework, the rear suspension assemblies are fixedly connected with the lower portion of the rear wall framework, four suspension points are arranged in a rectangular shape, and the four suspension points are fixedly connected with the front side of the front wall framework. And the suspension point is positioned at the middle lower position of the cab main body framework. The utility model further discloses an underground dumper. Part of space can be reserved for arranging the engine and the water tank, and the suspension structure has the advantages of being high in space utilization rate, balanced in suspension stress and high in structural strength, is suitable for underground dump trucks and meets the special requirements of underground narrow spaces.

Description

Technical Field

[0001] This utility model relates to the field of underground dump truck technology. More specifically, this utility model relates to an underground dump truck cab and an underground dump truck. Background Technology

[0002] Underground dump trucks are special dump trucks developed to adapt to material transportation in underground mine tunnels. Their unique design gives them a unique position in the field of underground transportation, and they are mainly used in various non-coal underground mines such as iron ore, gold and copper mines, lead-zinc mines, and phosphate mines. Currently, the tunnel dimensions in China are relatively narrow, and the distance between the vehicle and the tunnel wall is relatively short during operation. To facilitate vehicle movement, underground dump trucks are designed to be relatively compact overall. Correspondingly, the cab is also relatively compact in size, needing to meet the special requirements of the narrow underground space. This leads to overlap between the cab and other vehicle components in terms of spatial arrangement, especially the engine and radiator. Furthermore, the suspension points of the underground dump truck cab are usually located at the four corners of the cab bottom. Because the center of gravity is close to the center of the cab, the force difference at the four suspension points is significant. During prolonged use, the rubber pads at the suspension points near the center of the cab are prone to deformation and failure due to excessive stress, resulting in reduced vibration isolation performance of the cab. At the same time, the existing suspension point layout is prone to tipping over when subjected to lateral thrust, posing a risk to the driver's life safety. Utility Model Content

[0003] This utility model provides an underground dump truck cab and an underground dump truck, which can make room for the engine and water tank. It has the advantages of high space utilization, balanced suspension force and high structural strength. It is suitable for underground dump trucks and meets the special needs of narrow underground spaces.

[0004] To achieve these objectives and other advantages according to the present invention, an underground dump truck cab is provided, comprising a front frame, a left side frame, a right side frame, a rear frame, a roof frame, and a floor frame, wherein the roof frame and the floor frame are connected by the front frame, the left side frame, the right side frame, and the rear frame, and the underground dump truck cab also includes a pair of front suspension assemblies and a pair of rear suspension assemblies.

[0005] The length and width of the roof frame are both greater than the length and width of the base plate frame;

[0006] A pair of front suspension assemblies (33) are fixedly connected to the front side of the front frame, and a pair of rear suspension assemblies (17) are fixedly connected to the lower part of the rear frame. The four suspension points of the pair of front suspension assemblies (33) and the pair of rear suspension assemblies (17) are arranged in a rectangle, and the height of the suspension points is located in the lower middle part of the main frame of the cab.

[0007] Preferably, it also includes a front tube beam assembly and a rear tube beam assembly;

[0008] The front tube beam assembly includes a horizontal tube beam six (14), a longitudinal tube beam seven (32), and a vertical tube beam ten (26) that are perpendicularly connected to each other. The rear tube beam assembly includes another horizontal tube beam six (14), a longitudinal tube beam six (21), and a vertical tube beam nine (22) that are perpendicularly connected to each other. The right side frame is connected to the horizontal tube beam six (14) and is connected to the front frame and the bottom plate frame through the longitudinal tube beam seven (32) and the vertical tube beam ten (26), respectively. The right side frame is connected to the other horizontal tube beam six (14) and is connected to another vertical tube beam five (19) and the bottom plate frame through the longitudinal tube beam six (21) and the vertical tube beam nine (22), respectively, thereby forming a clearance space for the engine compartment and water tank.

[0009] Preferably, the canopy frame is formed by connecting horizontal pipe beam 1 (1), vertical pipe beam 2 (6), horizontal pipe beam 3 (9), and another vertical pipe beam 2 (6) end to end to form a rectangular frame structure;

[0010] The base plate frame is formed by connecting four horizontal tube beams (29), four longitudinal tube beams (24), another four horizontal tube beams (29), and another four longitudinal tube beams (24) end to end to form a rectangular frame structure;

[0011] The front frame is formed by connecting horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), another vertical tube beam 2 (39), vertical tube beam 8 (28), horizontal tube beam 4 (29), another vertical tube beam 8 (28), horizontal tube beam 9 (13), vertical tube beam 4 (10), and horizontal tube beam 5 (31). Horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), and another vertical tube beam 2 (39) are connected end to end to form a rectangular frame structure located above. Vertical tube beam 8 (28), horizontal tube beam 4 (29), and another vertical tube beam 8 (28) are connected in sequence and enclosed with the rectangular frame structure to form a rectangular frame structure located below.

[0012] The rear frame is formed by connecting the three horizontal tube beams (9), the one vertical tube beam (12), the eleventh horizontal tube beam (40), and another one vertical tube beam (12) end to end to form a rectangular frame structure;

[0013] The left-side circumferential frame is formed by connecting longitudinal tube beam 2 (6), vertical tube beam 1 (12), longitudinal tube beam 3 (18), vertical tube beam 5 (19), longitudinal tube beam 4 (24), vertical tube beam 8 (28), and vertical tube beam 2 (39) end to end;

[0014] The right-side frame is formed by connecting the two longitudinal tube beams (6), the one vertical tube beam (12), the one longitudinal tube beam (36), and the two vertical tube beams (39) end to end to form a trapezoidal frame structure.

[0015] The horizontal tube beam five (31) is horizontally arranged and connected to the vertical tube beam eight (28) and another vertical tube beam eight (28). The horizontal tube beam nine (13) is horizontally arranged and connected to another vertical tube beam eight (28) and vertical tube beam four (10). The horizontal tube beam five (31) and the horizontal tube beam nine (13) are aligned. The horizontal tube beam five (31), the horizontal tube beam nine (13) and the horizontal tube beam two (30) above are also connected to a pair of front suspension assemblies (33) through a pair of bending plates (34).

[0016] The horizontal tube beam 10 (15) is horizontally set and connected to the longitudinal tube beam 3 (18) and the longitudinal tube beam 1 (36). Another horizontal tube beam 9 (13) is horizontally set and connected to another vertical tube beam 5 (19) and another vertical tube beam 4 (10). Another horizontal tube beam 9 (13) and the upper horizontal tube beam 10 (15) are also connected to a pair of rear suspension assemblies (17) by another pair of bending plates (34).

[0017] Preferably, another horizontal tube beam eleven (40) is horizontally arranged and connected to the center position of the vertical tube beam one (12) and the other vertical tube beam one (12), dividing the rear frame into two uniform rectangular frames, and multiple support tubes two (8) are connected to the rear frame in the form of diagonal bracing.

[0018] Preferably, the left side frame supports the roof frame and the bottom frame through the vertical pipe beam three (20), the two ends of the longitudinal pipe beam eight (16) are connected to the vertical pipe beam three (20) and the vertical pipe beam one (12), and the longitudinal pipe beam three (18) is extended to connect with the vertical pipe beam three (20).

[0019] Preferably, the right-side frame supports the roof frame and the bottom frame through the vertical pipe beam seven (3), and the longitudinal pipe beam nine (37) connects the other vertical pipe beam two (39), the vertical pipe beam seven (3), and the other vertical pipe beam one (12).

[0020] Preferably, the rear of the fourth longitudinal tube beam (24) and the other fourth longitudinal tube beam (24) are both bent upward to form a front axle bounce avoidance space, and a transverse tube beam (23) is welded on the bottom plate frame, the transverse tube beam (23) being located at the driver's seat and footrest position.

[0021] Preferably, the longitudinal tube beam five (2) and the transverse tube beam seven (5) are horizontally installed on the roof frame in multiple rows and columns.

[0022] Preferably, vertical tube beam six (27) is connected to longitudinal tube beam four (24) and vertical tube beam two (39) in the form of diagonal bracing to form a triangular support structure, support tube one (7) is connected to the ceiling frame in the form of diagonal bracing, support tube four (38) is connected to the front frame in the form of diagonal bracing to form a triangular structure, support tube three (25) is connected to the left frame in the form of diagonal bracing to form a triangular structure, and support tube six (4) is connected to the right frame in the form of diagonal bracing to form a triangular structure.

[0023] An underground dump truck, including the aforementioned underground dump truck cab.

[0024] This utility model has at least the following beneficial effects:

[0025] First, the four suspension points of the cab of this utility model are evenly arranged at the four corners of the cab, and the force on each suspension point is even, so it is not easy to roll over when subjected to lateral force. Furthermore, the four suspension points are arranged in a position slightly below the middle of the cab. When the cab is subjected to lateral thrust, the energy is more easily transferred to the cab suspension bracket and the frame due to the shorter cantilever, thus sharing the force on the cab.

[0026] Secondly, the right side of the cab of this utility model provides space for the engine and water tank, avoiding overlap between the cab and the engine and radiator in terms of spatial arrangement, ensuring the compactness of the underground dump truck, and meeting the special needs of the narrow space underground.

[0027] Third, the cab of this utility model has a stable frame support and reinforcement structure, and multiple triangular support structures can form an impact-resistant structure, which significantly improves the cab's resistance to deformation and enhances the overall strength of the cab.

[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 structure of one technical solution of this utility model;

[0030] Figure 2 This is a schematic diagram of the left side view of one technical solution of this utility model;

[0031] Figure 3 This is a schematic diagram of the right side view of one technical solution of this utility model;

[0032] Figure 4 This is a rear side view structural schematic diagram of one technical solution of this utility model. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1-4 As shown, this utility model provides an underground dump truck cab, including a front frame, a left side frame, a right side frame, a rear frame, a roof frame, and a floor frame. The roof frame and the floor frame are connected by the front frame, the left side frame, the right side frame, and the rear frame. The length and width of the roof frame are both longer than the floor frame. From the perspective of mechanics and space utilization, the larger size of the roof frame is beneficial to free up some space for arranging the engine and water tank. The larger roof frame can also disperse the impact force from above, providing better protection.

[0037] The underground dump truck cab also includes a pair of front suspension assemblies and a pair of rear suspension assemblies. The pair of front suspension assemblies (33) are connected to the front side of the front bulkhead frame, and the pair of rear suspension assemblies (17) are welded to the bottom of the rear bulkhead frame. The four suspension points of the pair of front suspension assemblies (33) and the pair of rear suspension assemblies (17) are arranged in a rectangle, and the height of the suspension points is located in the lower middle position of the main body frame of the cab. The rectangular arrangement of the suspension points can more evenly bear the weight from the vehicle body and various dynamic loads during vehicle operation. Moreover, the height of the suspension points is located in the lower middle position of the main body frame of the cab. The front suspension assembly (33) on the left side of the cab is welded at this position, which can effectively solve the problem of uneven stress on the suspension points leading to deformation and failure of the rubber pads compared to welding it to the bottom of the cab. The four suspension points of the cab are at the same level and are arranged in a position slightly below the middle of the cab. When the cab is subjected to lateral thrust, the distance between the top of the cab and the suspension points becomes shorter and the cantilever becomes shorter, making it easier for energy to be transferred to the cab suspension brackets and the frame, thus sharing the force on the cab and making the cab less prone to deformation and failure. A pair of rear suspension assemblies (17) are welded to the lower sides of the rear rectangular frame, forming a rectangular arrangement with a pair of front cab suspension assemblies (33), ensuring that the four suspension points of the cab are evenly stressed and are less prone to rollover when subjected to lateral force.

[0038] In the aforementioned technical solution, a lower suspension point position can lower the vehicle's center of gravity, reduce the risk of roll during driving, and improve driving stability. Simultaneously, this layout allows the vehicle to more effectively transfer lateral forces to the chassis, reducing stress deformation in the cab.

[0039] In another technical solution, a front tube beam assembly and a rear tube beam assembly are also included. These are key components designed to create space for the engine compartment and water tank. The front tube beam assembly includes a horizontal tube beam six (14), a longitudinal tube beam seven (32), and a vertical tube beam ten (26) that are perpendicularly connected to each other. The rear tube beam assembly includes another horizontal tube beam six (14), a longitudinal tube beam six (21), and a vertical tube beam nine (22) that are perpendicularly connected to each other. This vertical connection method can form a stable structure. Mechanically, the vertical structure can effectively transfer and disperse stress. The right-side frame is connected to the horizontal tube beam six (14) and to the front frame and the bottom plate frame respectively through the vertical tube beam seven (32) and the vertical tube beam ten (26). The right-side frame is connected to another horizontal tube beam six (14) and to another vertical tube beam five (19) and the bottom plate frame respectively through the vertical tube beam six (21) and the vertical tube beam nine (22), thereby forming a space for the engine compartment and water tank, allowing the engine and water tank to be reasonably arranged and avoiding interference with the cab structure. The right side of the cab provides space for the engine and water tank, ensuring the compactness of the underground dump truck.

[0040] In another technical solution, the canopy frame is formed by connecting the first horizontal tube beam (1), the second vertical tube beam (6), the third horizontal tube beam (9), and another second vertical tube beam (6) end to end to form a rectangular frame structure. The rectangular frame structure has high stability and symmetry. When subjected to pressure and impact from above, it can evenly disperse stress and avoid local stress concentration that could lead to structural damage.

[0041] The base plate frame is formed by connecting four horizontal tube beams (29), four longitudinal tube beams (24), another four horizontal tube beams (29), and another four longitudinal tube beams (24) end to end to form a rectangular frame structure. The base plate frame serves as the basic support structure for the entire cab. The rectangular frame structure can provide stable support force, ensuring that the cab remains stable under various road conditions, and is also convenient for connection and fixation with the frame.

[0042] The front frame is formed by connecting horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), another vertical tube beam 2 (39), vertical tube beam 8 (28), horizontal tube beam 4 (29), another vertical tube beam 8 (28), horizontal tube beam 9 (13), and vertical tube beam 4 (10) and horizontal tube beam 5 (31). Horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), and another vertical tube beam 2 (39) are connected end to end to form a rectangular frame structure located at the top. This rectangular frame structure can serve as... It serves to protect the face and chest of the people in the driver's cab, and also provides support for the installation of equipment such as the instrument panel and windshield. Vertical tube beam eight (28), horizontal tube beam four (29), and another vertical tube beam eight (28) are connected in sequence and enclosed with the rectangular frame structure to form the rectangular frame structure located below. The upper and lower rectangular frame structures cooperate with each other to enhance the overall strength and stability of the front frame. Since the length and width of the roof frame are longer than the bottom plate frame, after the upper and lower rectangular frame structures are aligned on the left, the right side forms a clearance space.

[0043] The rear frame is formed by connecting the three horizontal tube beams (9), the one vertical tube beam (12), the eleventh horizontal tube beam (40), and another one vertical tube beam (12) end to end to form a rectangular frame structure. The height of the rear frame corresponds to the rectangular frame structure above the front frame. The rear frame mainly serves to protect the personnel and equipment at the rear of the cab. The rectangular frame structure can effectively resist the impact force from the rear.

[0044] The left side frame is formed by connecting longitudinal tube beam 2 (6), vertical tube beam 1 (12), longitudinal tube beam 3 (18), vertical tube beam 5 (19), longitudinal tube beam 4 (24), vertical tube beam 8 (28) and vertical tube beam 2 (39) end to end, forming a trapezoidal frame structure. Longitudinal tube beam 2 (6), longitudinal tube beam 3 (18) and longitudinal tube beam 4 (24) are set horizontally, and the length of longitudinal tube beam 2 (6) is equal to the sum of the lengths of longitudinal tube beam 3 (18) and longitudinal tube beam 4 (24). Vertical tube beam 1 (12), vertical tube beam 5 (19) and vertical tube beam 8 (28) are set vertically and vertical tube beam 5 (19) and vertical tube beam 8 (28) are at the same height. Vertical tube beam 2 (39) is set at an angle. It has good stability when bearing lateral force and can effectively protect the people in the driver's cab from side collisions.

[0045] The right side frame is formed by connecting the second longitudinal tube beam (6), the first vertical tube beam (12), the first longitudinal tube beam (36), and the second vertical tube beam (39) end to end to form a trapezoidal frame structure. The right side frame corresponds to the rectangular frame structure above the rear frame and the front frame in terms of height. Its function is similar to that of the left side frame, providing side protection for the cab.

[0046] The horizontal tube beam five (31) is horizontally arranged and connected to the vertical tube beam eight (28) and another vertical tube beam eight (28). The horizontal tube beam nine (13) is horizontally arranged and connected to another vertical tube beam eight (28) and vertical tube beam four (10). The horizontal tube beam five (31) is aligned with the horizontal tube beam nine (13). The horizontal tube beam five (31), the horizontal tube beam nine (13) and the horizontal tube beam two (30) above are also connected to a pair of front suspension assemblies (33) by a pair of bending plates (34). The horizontal tube beam ten (15) is horizontally arranged and connected to the longitudinal tube beam three (18) and the longitudinal tube beam four (10). Pipe beam 1 (36), another horizontal pipe beam 9 (13) is horizontally set and connected to another vertical pipe beam 5 (19) and another vertical pipe beam 4 (10). Another horizontal pipe beam 9 (13) and the upper horizontal pipe beam 10 (15) are also respectively installed with a pair of rear suspension assemblies (17) through another pair of bent plates (34). The front suspension assembly (33) on the right side of the cab is welded to the front side of this position instead of the lower side because the space adjacent to the radiator water tank is insufficient. Welding it to the front side makes the design and installation of the cab suspension bracket relatively simple. The pair of rear suspension assemblies (17) are welded to the two sides of the lower side of the rear rectangular frame instead of the outer side of the rear rectangular frame because the cargo box is arranged on the rear side of the cab, the space is insufficient, and the lifting cylinder is in the middle of the workshop, making it difficult to arrange the rear suspension bracket of the cab. The front suspension assembly (33) on the left side of the cab should be in the same position as the front suspension assembly (33) on the right side of the cab to ensure uniform force distribution, and to ensure that a pair of front suspension assemblies (33) and a pair of rear suspension assemblies (17) can be stably installed on the cab and effectively transmit and buffer the vibration and impact forces during vehicle operation.

[0047] In the aforementioned technical solution, the rectangular frame structure of the roof and floor utilizes geometric symmetry to evenly distribute external loads to each frame node, avoiding stress concentration and improving overall rigidity. The double rectangular frames of the front enclosure form nested supports, enhancing frontal impact resistance through the coordinated force distribution of the upper and lower frames. The trapezoidal frame structure of the side enclosure utilizes the principle of triangular stability to convert lateral forces into internal frame forces, improving lateral deformation resistance. Furthermore, the asymmetrical design of the roof and floor (right-side clearance space) provides structural redundancy for the engine compartment, solving the problem of compact layout of underground equipment. The four-point rectangular suspension layout shortens the cantilever length, lowers the cab's center of gravity height, reduces lateral tilt moment, and improves driving stability.

[0048] In another technical solution, another horizontal tube beam eleven (40) is horizontally set and connected to the center position of vertical tube beam one (12) and another vertical tube beam one (12), dividing the rear frame into two uniform rectangular frames, further improving the stability and strength of the rear frame. Multiple support tubes two (8) are connected to the rear frame in the form of diagonal bracing, preferably a symmetrical structure, which effectively enhances the overall stiffness and stability of the rear frame and can effectively avoid the deformation of the frame caused by the lateral force on the cab.

[0049] In another technical solution, the left side frame supports the roof frame and the bottom frame through the vertical tube beam three (20), which is the left B-pillar of the cab and supports the roof frame. When the roof is under stress, it can transmit the force to the bottom of the cab, effectively absorb energy, reduce the deformation of the top frame, and protect the driver's safety. The two ends of the longitudinal tube beam eight (16) are connected to the vertical tube beam three (20) and the vertical tube beam one (12). The longitudinal tube beam three (18) is extended to connect with the vertical tube beam three (20), which can effectively resist the impact force and lateral force from the left side and help improve the overall strength and rigidity of the left side frame.

[0050] In another technical solution, the right-side frame supports the roof frame and the bottom frame through the vertical tube beam seven (3), which is the right B-pillar of the cab and supports the roof frame. When the roof is under stress, it can transmit the force to the bottom of the cab, effectively absorb energy, reduce the deformation of the top frame, and protect the driver's safety. The longitudinal tube beam nine (37) connects another vertical tube beam two (39), vertical tube beam seven (3), and another vertical tube beam one (12), which can effectively resist the impact force and lateral force from the right side, and help improve the overall strength and rigidity of the right-side frame.

[0051] In another technical solution, the rear of the fourth longitudinal tube beam (24) and the other fourth longitudinal tube beam (24) are both bent upward to form a front axle bounce avoidance space. This is exactly the position of the front axle. Due to the height restriction of underground vehicles, the cab cannot be arranged too high. In order to prevent the front wheels from bouncing and hitting the cab floor, sufficient space needs to be left. Furthermore, a horizontal tube beam (23) is welded on the floor frame. The horizontal tube beam (23) is located at the driver's seat and foot position, which increases the structural strength of the floor and effectively ensures the safety of the driver.

[0052] In another technical solution, longitudinal tube beam five (2) and transverse tube beam seven (5) are horizontally installed on the roof frame in multiple rows and columns and are uniformly welded to the top of the cab as protective beams for the top of the cab, which can effectively prevent objects falling from the top from entering the cab and protect the driver's safety.

[0053] In another technical solution, vertical tube beam six (27) is connected to longitudinal tube beam four (24) and vertical tube beam two (39) in the form of diagonal bracing to form a triangular support structure. When the left A-pillar is subjected to intrusion force, it can effectively prevent its deformation and ensure the stability of the cab structure. Support tube one (7) is connected to the roof frame in the form of diagonal bracing, and support tube four (38) is connected to the front frame in the form of diagonal bracing to form a triangular structure. When the cab is subjected to intrusion force from the rear and right, it can effectively ensure the strength of the connection between longitudinal tube beam two (6) and horizontal tube beam three (9) and is not prone to deformation causing weld cracking. Support tube three (25) is connected to the left frame in the form of diagonal bracing to form a triangular structure, and support tube six (4) is connected to the right frame in the form of diagonal bracing to form a triangular structure. Similarly, when the vehicle is subjected to various external forces, these diagonal bracing structures can distribute the force to various components, avoid local stress concentration leading to structural damage, thereby improving the overall deformation resistance and safety of the cab.

[0054] The underground dump truck includes the aforementioned underground dump truck cab. Support pipes can be replaced with channel steel. Channel steel has similar mechanical properties to support pipes, providing similar strength and rigidity. When using channel steel instead of support pipes, the connection method and installation position need to be appropriately adjusted according to the dimensions and properties of the channel steel. During the design and manufacturing process of the underground dump truck, this cab structure is rationally matched and integrated with other vehicle components. For example, the cab's suspension system is precisely connected to the frame to ensure that the suspension points can accurately bear and transmit the vehicle's weight and various dynamic loads. Simultaneously, the layout of the engine compartment and water tank must be rationally designed so that the engine and water tank can coordinate with the cab structure, avoiding mutual interference. During the operation of the underground dump truck, this cab structure can effectively improve the vehicle's stability, safety, and comfort, providing the driver with a good working environment.

[0055] 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.

[0056] 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. The underground dump truck cab, including the front frame, left side frame, right side frame, rear frame, roof frame, and floor frame, wherein, The roof frame and the base frame are connected by a front frame, a left side frame, a right side frame, and a rear frame, characterized in that the length and width of the roof frame are both greater than the length and width of the base frame; The underground dump truck cab also includes a pair of front suspension assemblies (33) and a pair of rear suspension assemblies (17). The pair of front suspension assemblies (33) are fixedly connected to the front side of the front frame, and the pair of rear suspension assemblies (17) are fixedly connected to the lower part of the rear frame. The four suspension points of the pair of front suspension assemblies (33) and the pair of rear suspension assemblies (17) are arranged in a rectangle, and the height of the suspension points is located in the lower middle position of the main frame of the cab.

2. The underground dump truck cab according to claim 1, characterized in that, It also includes the front tube beam assembly and the rear tube beam assembly; The front tube beam assembly includes a horizontal tube beam six (14), a longitudinal tube beam seven (32), and a vertical tube beam ten (26) that are perpendicularly connected to each other. The rear tube beam assembly includes another horizontal tube beam six (14), a longitudinal tube beam six (21), and a vertical tube beam nine (22) that are perpendicularly connected to each other. The right side frame is connected to the horizontal tube beam six (14) and is connected to the front frame and the bottom plate frame through the longitudinal tube beam seven (32) and the vertical tube beam ten (26), respectively. The right side frame is connected to the other horizontal tube beam six (14) and is connected to another vertical tube beam five (19) and the bottom plate frame through the longitudinal tube beam six (21) and the vertical tube beam nine (22), respectively, thereby forming a clearance space for the engine compartment and water tank.

3. The underground dump truck cab according to claim 1, characterized in that, The canopy frame is formed by connecting horizontal pipe beam 1 (1), vertical pipe beam 2 (6), horizontal pipe beam 3 (9), and another vertical pipe beam 2 (6) end to end to form a rectangular frame structure; The base plate frame is formed by connecting four horizontal tube beams (29), four longitudinal tube beams (24), another four horizontal tube beams (29), and another four longitudinal tube beams (24) end to end to form a rectangular frame structure; The front frame is formed by connecting horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), another vertical tube beam 2 (39), vertical tube beam 8 (28), horizontal tube beam 4 (29), another vertical tube beam 8 (28), horizontal tube beam 9 (13), vertical tube beam 4 (10), and horizontal tube beam 5 (31). Horizontal tube beam 1 (1), vertical tube beam 2 (39), horizontal tube beam 2 (30), and another vertical tube beam 2 (39) are connected end to end to form a rectangular frame structure located above. Vertical tube beam 8 (28), horizontal tube beam 4 (29), and another vertical tube beam 8 (28) are connected in sequence and enclosed with the rectangular frame structure to form a rectangular frame structure located below. The rear frame is formed by connecting the three horizontal tube beams (9), the one vertical tube beam (12), the eleventh horizontal tube beam (40), and another one vertical tube beam (12) end to end to form a rectangular frame structure; The left-side circumferential frame is formed by connecting longitudinal tube beam 2 (6), vertical tube beam 1 (12), longitudinal tube beam 3 (18), vertical tube beam 5 (19), longitudinal tube beam 4 (24), vertical tube beam 8 (28), and vertical tube beam 2 (39) end to end; The right-side frame is formed by connecting the two longitudinal tube beams (6), the one vertical tube beam (12), the one longitudinal tube beam (36), and the two vertical tube beams (39) end to end to form a trapezoidal frame structure. The horizontal tube beam five (31) is horizontally arranged and connected to the vertical tube beam eight (28) and another vertical tube beam eight (28). The horizontal tube beam nine (13) is horizontally arranged and connected to another vertical tube beam eight (28) and vertical tube beam four (10). The horizontal tube beam five (31) and the horizontal tube beam nine (13) are aligned. The horizontal tube beam five (31), the horizontal tube beam nine (13) and the horizontal tube beam two (30) above are also connected to a pair of front suspension assemblies (33) through a pair of bending plates (34). The horizontal tube beam 10 (15) is horizontally set and connected to the longitudinal tube beam 3 (18) and the longitudinal tube beam 1 (36). Another horizontal tube beam 9 (13) is horizontally set and connected to another vertical tube beam 5 (19) and another vertical tube beam 4 (10). Another horizontal tube beam 9 (13) and the upper horizontal tube beam 10 (15) are also connected to a pair of rear suspension assemblies (17) by another pair of bending plates (34).

4. The underground dump truck cab according to claim 3, characterized in that, Another horizontal tube beam eleven (40) is set horizontally and connects the center position of the vertical tube beam one (12) and the other vertical tube beam one (12), dividing the rear frame into two uniform rectangular frames. Multiple support tubes two (8) are connected to the rear frame in the form of diagonal bracing.

5. The underground dump truck cab according to claim 3, characterized in that, The left side frame supports the roof frame and the bottom frame through the vertical pipe beam three (20). The two ends of the longitudinal pipe beam eight (16) are connected to the vertical pipe beam three (20) and the vertical pipe beam one (12). The longitudinal pipe beam three (18) extends to connect with the vertical pipe beam three (20).

6. The underground dump truck cab according to claim 3, characterized in that, The right-side frame supports the roof frame and the bottom frame through the vertical pipe beam seven (3), and the longitudinal pipe beam nine (37) connects the other vertical pipe beam two (39), the vertical pipe beam seven (3), and the other vertical pipe beam one (12).

7. The underground dump truck cab according to claim 3, characterized in that, The rear of the fourth longitudinal tube beam (24) and the other fourth longitudinal tube beam (24) are both bent upward to form a front axle bounce avoidance space, and a transverse tube beam (23) is welded on the bottom plate frame. The transverse tube beam (23) is located at the driver's seat and foot position.

8. The underground dump truck cab according to claim 3, characterized in that, Longitudinal tube beam five (2) and transverse tube beam seven (5) are horizontally installed in multiple rows and columns on the roof frame.

9. The underground dump truck cab according to claim 3, characterized in that, Vertical tube beam six (27) is connected to longitudinal tube beam four (24) and vertical tube beam two (39) in the form of diagonal bracing to form a triangular support structure. Support tube one (7) is connected to the ceiling frame in the form of diagonal bracing. Support tube four (38) is connected to the front frame in the form of diagonal bracing to form a triangular structure. Support tube three (25) is connected to the left frame in the form of diagonal bracing to form a triangular structure. Support tube six (4) is connected to the right frame in the form of diagonal bracing to form a triangular structure.

10. An underground dump truck, characterized in that, Includes the underground dump truck cab as described in any one of claims 1-9.

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