Auxiliary frame for dumper loading

Abstract

The utility model relates to the technical field of dumper auxiliary frames, and discloses an auxiliary frame for loading of a dumper, which comprises frame main rods, notch grooves are formed in the lower sides of the opposite ends of the two frame main rods, first filling grooves are formed in the left sides and the right sides of the opposite ends of the inner walls of the notch grooves, and base rods are arranged on the inner walls of the notch grooves. Cross beams are fixedly connected to the left and right sides of the opposite ends of the base rods, longitudinal beams are fixedly connected to the middles of the opposite ends of the cross beams, the other ends of the reinforcing rods are fixedly connected to the two sides of the opposite ends of the base rods, first bolts are fixedly connected to the opposite ends of the base rods and located on the inner walls of the first filling grooves, and nuts are arranged on the outward sides of the outer walls of the first bolts. According to the auxiliary frame for loading of the dumper, the middle area of the auxiliary frame is reinforced, the bearing force of the middle area is improved, and therefore the situation that the auxiliary frame is broken due to continuous stress of heavy loads is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of dump truck subframes, specifically to a subframe for dump truck superstructures. Background Technology

[0002] The subframe of a dump truck is mostly made of high-strength steel and usually consists of two longitudinal beams and several cross beams. They are connected by welding or bolts to form a frame structure. The longitudinal beams are arranged in parallel and connected to the corresponding positions of the main frame. The cross beams are perpendicular to the longitudinal beams to enhance the overall rigidity. This type of subframe is commonly found in heavy-duty dump trucks and is the intermediate load-bearing structure connecting the chassis and the cargo box.

[0003] In the process of realizing this utility model, the inventors discovered that:

[0004] During dump truck operation, the combined force of road impacts and heavy cargo loads concentrates in the middle of the subframe, making it prone to fracture due to continuous stress, affecting its lifespan and posing potential hazards. Simultaneously, the repeated impacts from the cargo box falling over time cause wear or damage to the pads, reducing their lifespan and increasing operating costs and maintenance burden. To address this, a subframe for dump trucks is proposed to improve its durability during use and extend the lifespan of the pads. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, this utility model provides a subframe for dump trucks, which strengthens the middle area of ​​the subframe and improves the load-bearing capacity of this part.

[0006] Therefore, the technical solution of this utility model is as follows: a subframe for a dump truck, including a frame main rod, with a notch groove on the lower side of each of the two frame main rods at opposite ends, and a filling groove on the left and right sides of the inner wall of each notch groove at opposite ends, with a base rod provided on the inner wall of each notch groove, and a crossbeam fixedly connected to the left and right sides of each base rod at opposite ends, and a longitudinal beam fixedly connected to the middle of each crossbeam at opposite ends, with reinforcing rods fixedly connected to the left and right sides of each of the front and rear ends of the longitudinal beam, and the other end of each reinforcing rod fixedly connected to the two sides of each base rod at opposite ends, and a bolt fixedly connected to the inner wall of each filling groove at the opposite end of each base rod, with a nut provided on the outer side of each bolt.

[0007] Preferably, each of the main frame rods has an embedded groove at its top, and the bottom left and right sides of the inner wall of the embedded groove have limit grooves. A pad is provided on each of the left and right sides of the inner wall of the embedded groove. In this technical solution, the shape of the outer wall of the pad fits the half of the inner wall of the embedded groove, and the pad is placed after the embedded groove, with its top higher than the top of the main frame rod.

[0008] Preferably, a T-shaped plate is fixedly connected to the opposite side of the bottom end of each of the two adjacent pads, and the shape of the outer wall of the T-shaped plate matches the shape of the inner wall of the limiting groove. In this technical solution, the T-shaped plate is inverted and the extended parts on both sides are inserted into the limiting groove, which can restrict the pad from moving upward and detaching.

[0009] Preferably, the right end of the left pad is provided with a locking groove, and the left end of the right pad is fixedly connected with a mating plate. The shape of the outer wall of the mating plate matches the shape of the inner wall of the locking groove. In this technical solution, the mating plate and the locking groove fit together to improve the connection between the two pads.

[0010] Preferably, buffer pads are fixedly connected to the opposite sides of the inner walls of two adjacent pads, and the inner walls of the buffer pads are provided with several arched grooves. The inner walls of the pads are provided with filling grooves on the side of the buffer pads. In this technical solution, the buffer pads themselves are made of rubber material and have high cushioning performance.

[0011] Preferably, the bottom of the inner wall of the embedment trench is provided with threaded holes on the lower side of the filling trench, and the diameter of the upper side of the inner wall of the threaded hole is the same as the diameter of the lower side of the inner wall of the filling trench. In this technical solution, the top opening of the threaded hole is consistent with the bottom opening of the filling trench, which facilitates the insertion of bolts with corresponding outer diameters.

[0012] Preferably, each of the inner walls of the filling groove is provided with bolts, and the lower side of the outer wall of each bolt is provided on the inner wall of the threaded hole; in this technical solution, the inner wall of the threaded hole is provided with a threaded surface, and this surface is matched with the threaded portion of the bolt surface.

[0013] Preferably, both of the main frame rods are fixedly connected to anti-slip plates at their bottom ends. The inner walls of the anti-slip plates are provided with several bolt holes on both the front and rear sides of the main frame rods. In this technical solution, the bottom of the anti-slip plates is rough to increase the friction between the main frame rods and the dump truck. The bolt holes are aligned with the installation points on the dump truck and tightened with screws for reinforcement.

[0014] Beneficial effects: Compared with the prior art, this utility model, through the cooperation of the base rod, crossbeam, longitudinal beam, and reinforcing rod, divides the area between the base rod and crossbeam into several triangular parts. Based on the relatively stable effect of the triangular structure, the central area of ​​the subframe is reinforced, and the load-bearing capacity of this part is increased, thereby preventing breakage due to the continuous stress of heavy loads. Simultaneously, through the cooperation of the pad, buffer pad, and arched grooves, the bottom of the cargo box, while in contact with the pad surface and generating stress, is cushioned by the buffer pad. Furthermore, multiple arched grooves within the buffer pad create gaps in the inner wall, releasing stress and reducing pressure on the pad, thus increasing its service life. Attached Figure Description

[0015] Figure 1This is a perspective view of the present invention.

[0016] Figure 2 This is a half-sectional view of the right side of the main frame of the vehicle of this utility model.

[0017] Figure 3 This is a half-sectional view of the left side of the main frame of the vehicle of this utility model.

[0018] Figure 4 This is a schematic diagram of the main frame of the vehicle according to this utility model.

[0019] Figure 5 This is a schematic diagram of the crossbeam of this utility model.

[0020] Figure 6 This is a schematic diagram of the right side pad of this utility model.

[0021] Figure 7 This is a schematic diagram of the left side pad of this utility model.

[0022] The following components are shown in the diagram: 1. Main frame rod; 2. Anti-slip plate; 3. Base rod; 4. Crossbeam; 5. Pad; 6. Bolt hole; 7. Filling groove one; 8. Buffer pad; 9. T-shaped plate; 10. Bolt one; 11. Nut; 12. Notch; 13. Filling groove two; 14. Threaded hole; 15. Bolt two; 16. Embedded groove; 17. Engaging groove; 18. Limiting groove; 19. Longitudinal beam; 20. Reinforcing rod; 21. Butt joint plate; 22. Arch groove. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.

[0024] This utility model is as follows Figures 1 to 7 As shown:

[0025] A subframe for a dump truck includes a main frame 1. Each of the two main frame 1s has a notch 12 on its lower side at one end. The inner walls of the notches 12 at one end have filling grooves 7 on both sides. A base rod 3 is provided on the inner wall of each notch 12. A crossbeam 4 is fixedly connected to the left and right sides of the base rod 3 at one end. A longitudinal beam 19 is fixedly connected to the middle of the crossbeam 4 at one end. Reinforcing rods 20 are fixedly connected to the left and right sides of both ends of the longitudinal beam 19. The other ends of the reinforcing rods 20 are fixedly connected to the two sides of the base rod 3 at one end. Bolts 10 are fixedly connected to the inner walls of the filling grooves 7 at opposite ends of the base rods 3. Nuts 11 are provided on the outer side of the outer walls of the bolts 10. Anti-slip plates 2 are fixedly connected to the bottom ends of both main frame 1s. Several bolt holes 6 are provided on the inner walls of the anti-slip plates at the front and rear sides of the main frame 1.

[0026] In this technical solution, when assembling the main structure of the subframe, the two main frame rods 1 must first be placed in a parallel state, and the notches 12 of the two rods must be in opposite positions. Then, the base rods 3 are inserted into the notches 12 one by one. During this process, the bolts 10 must be precisely aligned with the filling grooves 7 and inserted. Next, the nuts 11 are put on the outer wall of the bolts 10 one by one, and the nuts 11 are tightened by rotating them, thereby fixing the base rods 3. In this way, the main frame rods 1, base rods 3 and crossbeams 4 are combined to form the main structure of the subframe.

[0027] Meanwhile, in order to reinforce the central area of ​​the subframe, the area between the base rod 3 and the crossbeam 4 is divided into several triangles according to the specific placement of the longitudinal beam 19 and the reinforcing rod 20. With the help of the relatively stable characteristics of the triangular structure, the load-bearing capacity of the central part of the subframe can be effectively improved, thereby avoiding the situation of breakage due to the continuous stress generated by the heavy load.

[0028] In this embodiment, each of the main frame rods 1 has an embedded groove 16 at its top end. Limiting grooves 18 are formed on both the left and right sides of the bottom end of the inner wall of the embedded groove 16. Pads 5 are provided on both the left and right sides of the inner wall of each embedded groove 16. T-shaped plates 9 are fixedly connected to the opposite sides of the bottom ends of two adjacent pads 5. The shape of the outer wall of the T-shaped plate 9 matches the shape of the inner wall of the limiting groove 18. A locking groove 17 is formed on the right end of each left pad 5, and a mating plate 21 is fixedly connected to the left end of each right pad 5. The shape of the outer wall of the mating plate 21 matches the shape of the inner wall of the locking groove 17. The two adjacent pads 5 are fixedly connected to the inner walls of the opposite sides of the pads 5. The inner walls of the buffer pads 8 are provided with several arched grooves 22. The inner walls of the pads 5 are provided with filling grooves 13 on one side of the buffer pads 8. The bottom of the inner wall of the embedded groove 16 is provided with threaded holes 14 on the lower side of the filling groove 13. The diameter of the upper side of the inner wall of the threaded hole 14 is the same as the diameter of the lower side of the inner wall of the filling groove 13. The inner wall of the filling groove 13 is provided with bolts 15. The lower side of the outer wall of the bolts 15 is provided on the inner wall of the threaded hole 14.

[0029] In this technical solution, the pads 5 are inserted from one side of the frame main rod 1. When inserting, the T-shaped plate 9 at the bottom of the pad 5 should be accurately aligned with the limiting groove 18 and inserted into it. Then, the two pads 5 are brought into contact with each other, and the mating plate 21 is inserted into the engaging groove 17 to complete the splicing of the two pads 5. At this time, the T-shaped plate 9 is fully inserted into the limiting groove 18, which can play a preliminary limiting role for the pads 5.

[0030] Next, take out bolt 2 15 in sequence, align it with filling groove 2 13 and insert it, and twist it into threaded hole 14. The mutual engagement of the threads forms a lock, which further restricts the pad 5 in the embedding groove 16. During the use of the dump truck, the bottom of the cargo box will be in contact with the surface of the pad 5. The stress generated by the cargo box on the pad 5 will be buffered by the buffer pad 8. Moreover, the buffer pad 8 has multiple arched grooves 22 inside. These arched grooves 22 make the inner wall of the buffer pad 8 have gaps, which helps to release the stress it bears, reduce the pressure on the pad 5, and improve its service life.

[0031] The working principle of this utility model:

[0032] Before use, place the two main frame rods 1 parallel to each other with their notches 12 facing each other. Then, insert the base rods 3 into the notches 12 respectively, and insert the bolts 10 into the filling slots 7. Then, put the nuts 11 on the outer wall of the bolts 10 and tighten them to fix the base rods 3. This forms the main subframe structure between the main frame rods 1, base rods 3, and crossbeams 4. By placing the longitudinal beams 19 and the reinforcing rods 20, the area between the base rods 3 and crossbeams 4 is divided into several triangular parts. Based on the relatively stable effect of the triangular structure, the middle area of ​​the subframe is reinforced to improve the load-bearing capacity of this part and avoid breakage due to continuous stress from heavy loads.

[0033] Next, insert the pads 5 from one side of the main frame 1, aligning the bottom T-shaped plate 9 with the limiting groove 18. Then, the two pads 5 come into contact with each other, and the mating plate 21 is inserted into the engaging groove 17 to complete the mating. At the same time, the T-shaped plate 9 is fully inserted into the limiting groove 18, which has a preliminary limiting effect on the pads 5. Then, take the bolts 15 one by one, align them with the filling groove 13, and insert them into the threaded hole 14. The threads fit together to form a lock, thereby further restricting the pads 5 in the embedded groove 16. During use, the bottom of the cargo box is in contact with the surface of the pads 5. The stress generated by the pads 5 is buffered by the buffer pad 8. The buffer pad 8 has multiple arched grooves 22, which creates gaps in the inner wall of the buffer pad 8 to release stress.

[0034] Any aspects not described in detail in this specification are techniques well-known in the art.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A subframe for a dump truck, comprising a main frame (1), characterized in that: The two main frame rods (1) are provided with a notch (12) on the lower side of opposite ends. The inner wall of the notch (12) is provided with a filling groove (7) on the left and right sides of opposite ends. The inner wall of the notch (12) is provided with a base rod (3). The left and right sides of opposite ends of the base rod (3) are fixedly connected with a crossbeam (4). The middle of opposite ends of the crossbeam (4) is fixedly connected with a longitudinal beam (19). The left and right sides of the front and rear ends of the longitudinal beam (19) are fixedly connected with a reinforcing rod (20). The other end of the reinforcing rod (20) is fixedly connected to the two sides of opposite ends of the base rod (3). The opposite ends of the base rod (3) are fixedly connected with a bolt (10) on the inner wall of the filling groove (7). The outer side of the bolt (10) is provided with a nut (11).

2. The subframe for a dump truck as described in claim 1, characterized in that: The top of the main rod (1) of the frame is provided with a mounting groove (16), and the bottom of the inner wall of the mounting groove (16) is provided with a limit groove (18) on both the left and right sides. The inner wall of the mounting groove (16) is provided with a pad (5) on both the left and right sides.

3. The subframe for a dump truck as described in claim 2, characterized in that: T-shaped plates (9) are fixedly connected to the opposite sides of the bottom ends of the two adjacent pads (5). The shape of the outer wall of the T-shaped plate (9) matches the shape of the inner wall of the limiting groove (18).

4. A subframe for a dump truck as described in claim 2 or 3, characterized in that: The right end of the pad (5) on the left side is provided with a locking groove (17), and the left end of the pad (5) on the right side is fixedly connected with a mating plate (21). The shape of the outer wall of the mating plate (21) matches the shape of the inner wall of the locking groove (17).

5. The subframe for a dump truck as described in claim 4, characterized in that: Each of the two adjacent pads (5) has a buffer pad (8) fixedly connected to the opposite side of the inner wall. The inner wall of the buffer pad (8) has several arched grooves (22). The inner wall of the pad (5) on the side of the buffer pad (8) has a filling groove (13).

6. The subframe for a dump truck as described in claim 5, characterized in that: The bottom of the inner wall of the embedment groove (16) is provided with threaded holes (14) located below the filling groove (13). The diameter of the upper side of the inner wall of the threaded hole (14) is the same as the diameter of the lower side of the inner wall of the filling groove (13).

7. The subframe for a dump truck as described in claim 6, characterized in that: Bolts 2 (15) are provided on the inner wall of the filling groove 2 (13), and the lower side of the outer wall of bolts 2 (15) is provided on the inner wall of the threaded hole (14).

8. A subframe for a dump truck as described in claim 1, 2, 3, 5, 6, or 7, characterized in that: The bottom ends of the two frame main rods (1) are fixedly connected with anti-slip plates (2), and the inner wall of the anti-slip plates (2) is provided with several bolt holes (6) on the front and rear sides of the frame main rods (1).

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