Bottom plate structure mounted on light dumper without auxiliary frame

Abstract

The utility model discloses a light dumper loading bottom plate structure without an auxiliary frame, which comprises a left longitudinal beam, a right longitudinal beam, a front cross beam, a right frame, a left frame, a rear frame, a C-shaped side cross beam, a U-shaped side cross beam, a long middle cross beam, an oil cylinder support, an oil cylinder support inclined support, a short middle cross beam and a rear rotary turnover seat, the front cross beam, the right frame, the left frame and the rear frame are combined to form an external frame, a left longitudinal beam and a right longitudinal beam are arranged in the external frame, a plurality of long middle cross beams are arranged between the two ends of the left longitudinal beam and the right longitudinal beam, the oil cylinder support is arranged in the middle between the left longitudinal beam and the right longitudinal beam, and C-shaped side cross beams and U-shaped side cross beams are arranged between the right longitudinal beam and the right frame as well as between the left longitudinal beam and the left frame at intervals; a short middle cross beam is arranged at the rear end between the left longitudinal beam and the right longitudinal beam, rear rotation turnover seats are welded to the two ends of the short middle cross beam and the outer sides of the left longitudinal beam and the right longitudinal beam, and the rear rotation turnover seats are provided with pin shaft mounting holes and connected with a frame through pin shafts. The utility model can lower the gravity center of the vehicle, reduce the rollover risk of the vehicle, lower the production cost and lower the dead weight of the vehicle.

Description

Technical Field

[0001] The utility model relates to an upper bottom plate structure of a light dump truck without a sub-frame, belonging to the technical field of light dump trucks. Background Art

[0002] Light dump trucks are used as transportation tools for urban construction, and their main operating scenarios are urban suburbs and towns. Currently, most light dump trucks require a subframe to connect the upper body and chassis, which makes the vehicle's center of gravity relatively high. During transportation, it is very easy to roll over in the event of a sharp turn. After adding a subframe, the production cost increases and the vehicle's own weight is also high. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a sub-frame-free light dump truck upper mounting floor structure in response to the defects of the prior art, thereby lowering the center of gravity of the vehicle and reducing the risk of vehicle rollover.

[0004] The front and rear frames are connected to each other by a plurality of longitudinal members, and the rear frame is connected to the front and rear frames by a plurality of longitudinal members, and the rear frame is connected to the rear frame by a plurality of longitudinal members.

[0005] The connections between the oil cylinder support and the left longitudinal beam and the right longitudinal beam are respectively provided with oil cylinder support oblique supports.

[0006] A long longitudinal beam reinforcement plate is arranged between the cylinder support and the left longitudinal beam and the right longitudinal beam, and a short longitudinal beam reinforcement plate is arranged between the short middle cross beam and the left longitudinal beam and the right longitudinal beam; a reinforcement plate is arranged on the inner side of the longitudinal beam corresponding to the position of the cylinder support, and a turning seat reinforcement rib is arranged on the inner side of the rear rotary turning seat.

[0007] The oil cylinder support includes an oil cylinder support pad, an oil cylinder support mounting beam, a reinforcement plate, an oil cylinder support ear plate, a shaft shoulder baffle and a pin shaft mounting hole.

[0008] The rear rotary flip seat includes two pin shaft mounting holes, two shaft shoulder baffles and a flip seat reinforcing rib.

[0009] The front cross beam is an integrated variable cross-section structure or a straight cross beam, and is formed by bending a flat plate or hot-rolled channel steel.

[0010] The right frame and the left frame are groove-shaped structures with equal cross-sections.

[0011] The rear frame is a structure capable of covering the entire longitudinal beam.

[0012] The left longitudinal beam and the right longitudinal beam are bent structures and are made of hot-rolled channel steel.

[0013] The upper part of the left longitudinal beam, right longitudinal beam, front crossbeam, right frame, left frame, rear frame, C-shaped side crossbeam, U-shaped side crossbeam and long middle crossbeam combination is paved with steel plates as the loading surface of the bottom plate.

[0014] Beneficial effects: The utility model eliminates the need for a subframe to connect the top and chassis of a dump truck, thereby lowering the center of gravity of the vehicle, reducing the risk of vehicle rollover, reducing production costs, and reducing the vehicle's own weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a structural diagram of the rear rotary flip seat of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the oil cylinder support of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the oil cylinder support of the utility model.

[0019] In the figure: 1. Left longitudinal beam; 2. Right longitudinal beam; 3. Front crossbeam; 4. Right side frame; 5. Left side frame; 6. Rear side frame; 7. C-shaped side crossbeam; 8. U-shaped side crossbeam; 9. Long middle crossbeam; 10. Cylinder support; 11. Cylinder support oblique support; 12. Short middle crossbeam; 13. Rear slewing and turning seat; 14. Long longitudinal beam reinforcement plate; 15. Short longitudinal beam reinforcement plate; 1101. Cylinder support pad; 1102. Cylinder support mounting beam; 1103. Reinforcement plate; 1104. Cylinder support ear plate; 1105. Shoulder baffle 1; 1106. Pin mounting hole; 1301. Pin mounting hole; 1302. Shoulder baffle 2; 1303. Turning seat reinforcement rib. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-4As shown, the utility model provides a subframe-free light dump truck upper floor structure, including a left longitudinal beam 1, a right longitudinal beam 2, a front crossbeam 3, a right side frame 4, a left side frame 5, a rear side frame 6, a C-shaped side crossbeam 7, a U-shaped side crossbeam 8, a long middle crossbeam 9, a cylinder support 10, a cylinder support oblique support 11, a short middle crossbeam 12, and a rear slewing flip seat 13. The front crossbeam 3, the right side frame 4, the left side frame 5 and the rear side frame 6 are combined into an external frame, in which the left longitudinal beam 1 and the right longitudinal beam 2 are arranged. A plurality of long intermediate cross beams 9 are provided between the two ends of the longitudinal beam 2, the cylinder support 10 is provided in the middle between the left longitudinal beam 1 and the right longitudinal beam 2, and C-shaped side cross beams 7 and U-shaped side cross beams 8 are provided at intervals between the right longitudinal beam 2 and the right frame 4, and between the left longitudinal beam 1 and the left frame 5; a short intermediate cross beam 12 is provided at the middle and rear ends between the left longitudinal beam 1 and the right longitudinal beam 2, and rear slewing and turning seats 13 are welded at both ends of the short intermediate cross beam 12 and the outer sides of the left longitudinal beam 1 and the right longitudinal beam 2. The rear slewing and turning seat 13 is provided with a pin mounting hole and is connected to the chassis frame through a pin.

[0022] The long middle cross beam 9 and the short middle cross beam 12 are of different lengths. A reinforcing plate is provided on the inner side of the longitudinal beam at the installation position of the short middle cross beam 12 .

[0023] Cylinder support oblique supports 11 are respectively provided at the connection points between the cylinder support 10 and the left longitudinal beam 1 and the right longitudinal beam 2 to further enhance the force bearing capacity of the periphery of the cylinder support.

[0024] A long longitudinal beam reinforcement plate 14 is arranged between the cylinder support 10 and the left longitudinal beam 1 and the right longitudinal beam 2, and a short longitudinal beam reinforcement plate 15 is arranged between the short middle cross beam 12 and the left longitudinal beam 1 and the right longitudinal beam 2; a groove-shaped reinforcement plate 1103 is arranged on the inner side of the longitudinal beam corresponding to the position of the cylinder support 10, and a turning seat reinforcement rib 1303 is arranged on the inner side of the rear rotary turning seat 13; the cylinder support seat and the rear rotary turning seat serve as the main force points for self-unloading and lifting, and the groove-shaped reinforcement plate can effectively improve the bending stiffness of the longitudinal beam.

[0025] The cylinder support 10 includes a cylinder support pad 1101, a cylinder support mounting beam 1102, a reinforcement plate 1103, a cylinder support ear plate 1104, a shoulder baffle 1105 and a pin shaft mounting hole 1106.

[0026] The rear rotary flip seat 13 includes a second pin shaft mounting hole 1301 , a second shaft shoulder baffle 1302 and a flip seat reinforcement rib 1303 .

[0027] The front cross beam 3 is an integrated variable cross-section structure or a straight cross beam, and is formed by bending a flat plate or hot-rolled channel steel.

[0028] The right frame 4 and the left frame 5 are groove-shaped structures with equal cross-sections.

[0029] The rear frame 6 is a structure that can cover the entire longitudinal beam.

[0030] The left longitudinal beam 1 and the right longitudinal beam 2 are bent structures and are made of hot-rolled channel steel; the hot-rolled channel steel has good bending resistance and higher bending stiffness than flat bent parts, effectively improving the bearing capacity of the base plate.

[0031] A layer of steel plate is laid on the upper part of the combination of the left longitudinal beam 1, the right longitudinal beam 2, the front crossbeam 3, the right frame 4, the left side frame 5, the rear side frame 6, the C-shaped side crossbeam 7, the U-shaped side crossbeam 8 and the long middle crossbeam 9 as the loading surface of the bottom plate.

[0032] This new model utilizes a welded through longitudinal beam and segmented crossbeams to form a skeleton. The front section features a one-piece, variable-section front crossbeam, with even-section channel-shaped frames on the left and right sides. The rear section features a rear frame that encompasses the entire longitudinal beam. The longitudinal beams are constructed from hot-rolled channel steel, while the crossbeams are formed from flat, bent flat plates. A layer of steel plate is laid on top of the skeleton to serve as the loading surface for the bottom plate. This structure eliminates the need for a subframe to connect the dump truck's superstructure and chassis, lowering the vehicle's center of gravity, minimizing the risk of rollover, reducing production costs, and reducing vehicle weight.

[0033] The above embodiments of the present invention are merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A subframe-less light dump truck upper floor structure, characterized by: The invention comprises a left longitudinal beam (1), a right longitudinal beam (2), a front crossbeam (3), a right side frame (4), a left side frame (5), a rear side frame (6), a C-shaped side crossbeam (7), a U-shaped side crossbeam (8), a long middle crossbeam (9), a cylinder support (10), a cylinder support oblique support (11), a short middle crossbeam (12), and a rear rotary flip seat (13). The front crossbeam (3), the right side frame (4), the left side frame (5) and the rear side frame (6) are combined into an external frame, in which the left longitudinal beam (1) and the right longitudinal beam (2) are arranged. A plurality of A long middle crossbeam (9) and a cylinder support (10) are arranged in the middle between the left longitudinal beam (1) and the right longitudinal beam (2); a C-shaped side crossbeam (7) and a U-shaped side crossbeam (8) are arranged between the right longitudinal beam (2) and the right side frame (4), and between the left longitudinal beam (1) and the left side frame (5); a short middle crossbeam (12) is arranged at the rear end between the left longitudinal beam (1) and the right longitudinal beam (2); rear slewing and turning seats (13) are welded to the two ends of the short middle crossbeam (12) and the outer sides of the left longitudinal beam (1) and the right longitudinal beam (2); and the rear slewing and turning seats (13) are provided with pin shaft mounting holes and are connected to the chassis frame through the pin shaft.

2. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The connection between the oil cylinder support (10) and the left longitudinal beam (1) and the right longitudinal beam (2) is respectively provided with an oil cylinder support oblique support (11).

3. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: A long longitudinal beam reinforcement plate (14) is provided between the oil cylinder support (10) and the left longitudinal beam (1) and the right longitudinal beam (2); a short longitudinal beam reinforcement plate (15) is provided between the short middle cross beam (12) and the left longitudinal beam (1) and the right longitudinal beam (2); a reinforcement plate (1103) is provided on the inner side of the longitudinal beam corresponding to the position of the oil cylinder support (10), and a turning seat reinforcement rib (1303) is provided on the inner side of the rear rotary turning seat (13).

4. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The oil cylinder support (10) comprises an oil cylinder support pad (1101), an oil cylinder support mounting beam (1102), a reinforcing plate (1103), an oil cylinder support ear plate (1104), a shoulder baffle (1105) and a pin shaft mounting hole (1106).

5. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The rear rotary flip seat (13) comprises a second pin shaft mounting hole (1301), a second shaft shoulder baffle (1302) and a flip seat reinforcing rib (1303).

6. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The front crossbeam (3) is an integrated variable cross-section structure or a straight crossbeam, and is formed by bending a flat plate or hot-rolling channel steel.

7. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The right frame (4) and the left frame (5) are groove-shaped structures with equal cross-sections.

8. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The rear frame (6) is a structure capable of covering the entire longitudinal beam.

9. The subframeless light dump truck upper mounting floor structure according to claim 1, characterized in that: The left longitudinal beam (1) and the right longitudinal beam (2) are bent structures and are made of hot-rolled channel steel.

10. The subframeless light dump truck upper mounting floor structure according to any one of claims 1 to 9, characterized in that: The upper portion of the combination of the left longitudinal beam (1), the right longitudinal beam (2), the front cross beam (3), the right side frame (4), the left side frame (5), the rear side frame (6), the C-shaped side cross beam (7), the U-shaped side cross beam (8) and the long middle cross beam (9) is paved with a steel plate as a loading surface of the bottom plate.

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