An overload-resistant buffer support structure for a tipping platform

Abstract

This invention discloses an overload-resistant buffer support structure for a tipping platform, belonging to the technical field of tipping platform technology. It includes a rigid base, with a U-shaped fixing frame fixedly connected to the left side of the rigid base. Side plates are symmetrically fixedly connected to the right side of the upper surface of the rigid base. The opposite sides of the two side plates are rotatably connected to the tipping platform body via a pivot. Buffer grooves are formed on the front and rear surfaces of the inner sidewall of the U-shaped fixing frame. This invention, through the cooperation of buffer grooves, guide rods, sliding blocks, support plates, and buffer springs, can effectively absorb impact loads when the tipping platform body is tipped and reset. The guide rods can limit the movement trajectory of the sliding blocks, preventing the support plate from swaying and ensuring a smooth buffering process. Combined with a hydraulic damping device, a double buffer energy-absorbing structure is formed, significantly reducing the rigid impact and vibration during reset, and reducing structural stress and component wear.

Description

Technical Field

[0001] This invention relates to the field of overturning platform technology, and in particular to an overload-resistant buffer support structure for overturning platforms. Background Technology

[0002] Tilting platforms are key equipment used for unloading and transferring materials in industrial production, logistics transportation, construction and other fields. They are widely used in mining, building materials, grain, chemical and other industries. Their working stability and safety are directly related to production efficiency, equipment life and personal safety of operators. At present, most tilting platforms on the market use rigid supports for direct support without setting up special buffer mechanisms and overload protection devices. This has many drawbacks in actual use and seriously affects the normal operation and safety of the equipment. First, the lack of a buffer mechanism leads to excessive impact on the platform. Due to the absence of effective buffering and energy-absorbing components, the instantaneous impact cannot be effectively absorbed and mitigated. Over time, this can cause platform deformation, weld cracking, loosening and damage to the support base, and even transmit the impact to the equipment foundation, causing foundation settlement and cracking. In actual operation, uneven material stacking, overloading, and operational errors often cause the platform to bear loads exceeding the rated value. Due to the lack of overload identification and protection mechanisms, overload cannot trigger early warnings or shutdowns in time, which will further aggravate the damage to the support structure and may lead to serious safety accidents such as platform overturning and collapse, threatening the personal safety of operators and causing significant property losses such as equipment scrapping and material leakage. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a solution to the problems of short service life, high maintenance costs, and prominent safety hazards in existing unloading platforms due to the lack of effective buffer mechanisms and overload protection devices.

[0004] Technical solution: An overload-resistant buffer support structure for a tipping platform, comprising a rigid base, a U-shaped fixing frame fixedly connected to the left side of the rigid base, and side plates symmetrically fixedly connected to the right side of the upper surface of the rigid base. The opposite sides of the two side plates are rotatably connected to the tipping platform body through a rotating shaft. The inner front and rear surfaces of the U-shaped fixing frame are provided with buffer vertical grooves. The inner upper and lower surfaces of the two buffer vertical grooves are fixedly connected to guide vertical rods. The outer sides of the two guide vertical rods are slidably connected to sliding blocks. The opposite sides of the two sliding blocks are fixedly connected to support plates. The outer sides of the two guide vertical rods are fitted with buffer springs. The two ends of the two buffer springs are fixedly connected to the lower surfaces of the two sliding blocks and the inner lower surfaces of the two buffer vertical grooves, respectively.

[0005] Furthermore, the upper surface of the rigid base is symmetrically fixedly connected with elastic supports, and the upper surfaces of the two elastic supports are in contact with the lower surface of the unloading platform body.

[0006] Furthermore, multiple hydraulic damping devices are fixedly connected to the lower surface of the inner wall of the U-shaped fixing frame, and the top ends of the multiple hydraulic damping devices are fixedly connected to the bottom end of the support plate.

[0007] Furthermore, the front and rear surfaces of the U-shaped fixing frame are fixedly connected to fixing boxes. The interiors of the two fixing boxes and the interiors of the two buffer vertical grooves are respectively provided with protrusions. The interiors of the two fixing boxes are slidably connected to movable plates. The opposite sides of the two movable plates are fixedly connected to wedge-shaped extrusion blocks. The opposite sides of the two wedge-shaped extrusion blocks pass through the two protrusions. The opposite sides of the two movable plates are respectively fixedly connected to the interiors of the two fixing boxes with multiple return springs. The opposite sides of the interiors of the two fixing boxes are fixedly connected to pressure sensors.

[0008] Furthermore, a signal acquisition module is fixedly connected to the rear of the inner lower surface of the U-shaped fixing frame, and a control module is fixedly connected to the front of the inner lower surface of the U-shaped fixing frame.

[0009] Furthermore, a buffer protective pad is fixedly connected to the upper surface of the support plate.

[0010] Furthermore, each of the two sliding blocks has an insertion hole on its left side, and a hydraulic telescopic rod is symmetrically arranged on the left side of the U-shaped fixing frame. The right end of the output shaft of each of the two hydraulic telescopic rods is fixedly connected with a locking pin, and the left end of each of the two hydraulic telescopic rods is fixedly connected to the left side of the U-shaped fixing frame with an L-shaped stabilizing plate.

[0011] Beneficial effects: The present invention, through the cooperation of buffer vertical groove, guide vertical rod, sliding block, support plate and buffer spring, can effectively absorb impact load when the unloading platform body flips and resets. The guide vertical rod can limit the movement trajectory of the sliding block, avoid the support plate from swaying and shaking, and ensure that the buffering process is smooth and stable. Combined with the hydraulic damping device, a double buffer energy absorption structure is formed, which greatly reduces the rigid impact and vibration during reset, and reduces structural stress and component wear. When the load is too large and causes the sliding block to move down and squeeze the wedge-shaped extrusion block, the present invention can quickly trigger the pressure sensor to generate an electrical signal. The signal is transmitted to the control module through the signal acquisition module, realizing real-time identification and response to the overload state. Compared with the traditional unloading platform without detection structure, it can detect the risk of overload in advance and avoid the failure and damage of the buffer spring and hydraulic damping device due to the continuous action of overload. It effectively improves the adaptability and safety of the equipment under heavy load and off-center load conditions. When the control module receives a severe overload signal, this invention can drive the hydraulic telescopic rod to push the locking pin into the insertion hole of the sliding block, thereby achieving rigid limit locking of the sliding block, preventing the support plate from continuing to move downward, preventing excessive compression failure of the buffer component, and eliminating safety accidents such as overturning and collision caused by excessive sinking of the unloading platform body. The L-shaped stabilizing plate ensures that the hydraulic telescopic rod is firmly installed and the locking action is precise and reliable. The whole system forms a three-level protection system of buffer energy absorption, overload detection, and limit locking, which greatly improves the safety factor of the equipment, reduces maintenance costs, and is suitable for various heavy-duty unloading operation scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the rigid base, U-shaped fixing frame, and elastic support of the present invention; Figure 3 This is a schematic diagram of the structure of the U-shaped fixing frame, support plate, and hydraulic damping device of the present invention; Figure 4 This is a side view of the cross-section of the U-shaped fixing frame and the fixing box of the present invention; Figure 5 This is a schematic diagram of the hydraulic telescopic rod and locking pin of the present invention; Figure 6 This is the present invention. Figure 4 A magnified structural diagram of point A in the middle.

[0013] In the diagram: 1. Rigid base; 2. U-shaped fixing frame; 3. Side plate; 4. Unloading platform body; 5. Buffer vertical groove; 6. Guide vertical rod; 7. Sliding block; 8. Support plate; 9. Buffer spring; 10. Elastic support; 11. Hydraulic damping device; 12. Fixing box; 13. Outlet; 14. Movable plate; 15. Wedge-shaped extrusion block; 16. Return spring; 17. Pressure sensor; 18. Signal acquisition module; 19. Control module; 20. Buffer protective pad; 21. Insertion hole; 22. Hydraulic telescopic rod; 23. Locking pin; 24. L-shaped stabilizing plate. Detailed Implementation

[0014] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, an overload-resistant overloading platform buffer support structure is provided, including a rigid base 1. A U-shaped fixing frame 2 is fixedly connected to the left side of the rigid base 1. Side plates 3 are symmetrically fixedly connected to the right side of the upper surface of the rigid base 1. The opposite sides of the two side plates 3 are rotatably connected to the overloading platform body 4 through a rotating shaft. Buffer grooves 5 are provided on the front and rear surfaces of the inner sidewalls of the U-shaped fixing frame 2. Guide rods 6 are fixedly connected to the upper and lower surfaces of the inner sides of the two buffer grooves 5. Sliding blocks 7 are slidably connected to the outer sides of the two guide rods 6. Support plates 8 are fixedly connected to the opposite sides of the two sliding blocks 7. Buffer springs 9 are sleeved on the outer sides of the two guide rods 6. The two ends of the two buffer springs 9 are fixedly connected to the lower surfaces of the two sliding blocks 7 and the lower surfaces of the two buffer grooves 5, respectively. Multiple hydraulic damping devices 11 are fixedly connected to the lower surface of the inner wall of the U-shaped fixing frame 2, and the top of each of the multiple hydraulic damping devices 11 is fixedly connected to the bottom of the support plate 8. During the unloading and resetting process of the tipping platform body 4, the downward pressure on the support plate 8 is generated when the tipping platform body 4 falls back. After the support plate 8 is subjected to force, the sliding blocks 7 on the front and rear sides move steadily downward along the corresponding guide rods 6 in the buffer groove 5. The sliding blocks 7 press down on the buffer springs 9 to produce elastic compression deformation. The elastic force of the buffer springs 9 is used to initially offset the resetting impact. At the same time, multiple hydraulic damping devices 11 are compressed and contracted synchronously with the support plate 8. Through the damping energy dissipation effect, the impact and vibration generated during the resetting of the tipping platform body 4 are further absorbed. The guide rods 6 can limit the movement direction of the sliding blocks 7 to prevent the support plate 8 from swaying during the force process. The system ensures smooth and reliable buffering action. The rigid base 1 and U-shaped fixing frame 2 provide a solid installation foundation for the overall buffer structure. The side plate 3 is rotatably connected to the tipping platform body 4 through a rotating shaft, which not only ensures the normal tipping and resetting of the tipping platform body 4, but also allows the resetting impact force to be stably transmitted to the support plate 8. Through the coordinated cooperation of the buffer spring 9 and the hydraulic damping device 11, the tipping and resetting process of the tipping platform body 4 can be effectively buffered, avoiding damage to the tipping platform body 4, side plate 3 and rotating shaft caused by rigid impact. At the same time, it reduces vibration and noise during resetting, improves the stability of equipment operation, extends the overall service life, and reduces maintenance costs during use.

[0016] like Figure 1 and Figure 2 As shown, elastic supports 10 are symmetrically fixedly connected to the upper surface of the rigid base 1, and the upper surfaces of the two elastic supports 10 are in contact with the lower surface of the unloading platform body 4. When the unloading platform body 4 is in the initial horizontal state, it can provide uniform auxiliary support and share part of the static load. During the process of the unloading platform body 4 flipping, resetting and falling back, the elastic support 10 can further buffer the impact of hitting the bottom. Together with the buffer spring 9 and the hydraulic damping device 11, it forms a multi-level buffer protection, effectively avoiding rigid collision between the unloading platform body 4 and the rigid base 1, reducing vibration and structural stress during resetting, improving the overall operational stability and protecting the connecting parts from damage.

[0017] like Figures 1-6 As shown, the front and rear surfaces of the U-shaped fixing frame 2 are fixedly connected to fixing boxes 12. The interiors of the two fixing boxes 12 and the interiors of the two buffer vertical grooves 5 are respectively provided with protrusions 13. The interiors of the two fixing boxes 12 are slidably connected to movable plates 14. The opposite sides of the two movable plates 14 are fixedly connected to wedge-shaped extrusion blocks 15. The opposite sides of the two wedge-shaped extrusion blocks 15 pass through the two protrusions 13 respectively. The opposite sides of the two movable plates 14 are respectively fixedly connected to the interiors of the two fixing boxes 12 with multiple return springs 16. The opposite sides of the interiors of the two fixing boxes 12 are fixedly connected to pressure sensors 17. A signal acquisition module 18 is fixedly connected to the rear of the inner lower surface of the U-shaped bracket 2, and a control module 19 is fixedly connected to the front of the inner lower surface of the U-shaped bracket 2. The fixed box 12, which is fixed to the front and rear surfaces of the U-shaped fixed frame 2, provides an installation carrier for the overload triggering structure. The protrusion 13, which is connected to the buffer vertical groove 5, provides a channel for the movement of the wedge-shaped compression block 15. When the overturning platform body 4 is subjected to excessive force during the flip-over reset or when an overload occurs, the support plate 8 drives the sliding blocks 7 on both sides to slide downward along the guide vertical rod 6. The downward sliding blocks 7 will compress the wedge-shaped compression block 15 on the corresponding side. After being subjected to force, the wedge-shaped compression block 15 pushes the movable plate 14 to slide away from the buffer vertical groove 5 inside the fixed box 12. The movable plate 14 compresses the reset spring 1 on the opposite side. 6. Simultaneously, the movable plate 14 presses the pressure sensor 17 on the opposite side inside the fixed box 12. After the pressure sensor 17 is pressed, it generates an electrical signal, which is transmitted through the line to the signal acquisition module 18 on the lower surface inside the U-shaped fixed frame 2. The signal acquisition module 18 organizes the signal and transmits it to the control module 19. The control module 19 promptly triggers the overload protection command, thereby realizing overload protection of the equipment and avoiding damage to the buffer spring 9, hydraulic damping device 11, unloading platform body 4 and various connecting parts due to overload, further improving the overload protection performance and safety of the buffer support structure.

[0018] like Figure 3 and Figure 4 As shown, a buffer protective pad 20 is fixedly connected to the upper surface of the support plate 8; The buffer protective pad 20, which is fixedly connected to the upper surface of the support plate 8, is in direct contact with the bottom of the unloading platform body 4. It can play an initial flexible buffering role when the unloading platform body 4 flips and resets and falls, avoiding rigid contact collision between the unloading platform body 4 and the support plate 8, effectively reducing impact noise and structural wear, and dispersing the local pressure transmitted to the support plate 8 to prevent stress concentration from damaging the support plate 8.

[0019] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, each of the two sliding blocks 7 has an insertion hole 21 on its left side, and a hydraulic telescopic rod 22 is symmetrically arranged on the left side of the U-shaped fixing frame 2. The right end of the output shaft of each of the two hydraulic telescopic rods 22 is fixedly connected with a locking pin 23, and the left end of each of the two hydraulic telescopic rods 22 is fixedly connected with an L-shaped stabilizing plate 24 to the left side of the U-shaped fixing frame 2. When the equipment experiences severe overload and the sliding block 7 continues to move down to the corresponding position, the insertion hole 21 and the locking pin 23 are in a coaxial alignment state. After receiving the overload signal, the control module 19 drives the hydraulic telescopic rod 22 to move. The output shaft of the hydraulic telescopic rod 22 pushes the locking pin 23 to the right and inserts it into the insertion hole 21 on the sliding block 7, thereby achieving rigid limit locking of the sliding block 7. The L-shaped stabilizing plate 24 provides a solid installation support for the hydraulic telescopic rod 22, ensuring that the locking action is stable and reliable. This limit locking structure can effectively limit the sliding block 7 and the support plate 8 from continuing to move down, preventing the buffer spring 9 and the hydraulic damping device 11 from failing due to excessive compression caused by overload, and preventing the overturning platform body 4 from sinking excessively and causing collisions, overturning and other safety accidents.

[0020] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An overload-resistant buffer support structure for a tipping platform, comprising a rigid base (1), characterized in that: A U-shaped fixing frame (2) is fixedly connected to the left side of the rigid base (1), and a side plate (3) is symmetrically fixedly connected to the right side of the upper surface of the rigid base (1). The two side plates (3) are rotatably connected to the unloading platform body (4) through a rotating shaft on their opposite sides. The inner front surface and inner rear surface of the U-shaped fixing frame (2) are provided with buffer vertical grooves (5). The inner upper surface and inner lower surface of the two buffer vertical grooves (5) are fixedly connected with guide vertical rods (6). The outer side walls of the two guide vertical rods (6) are slidably connected with sliding blocks (7). The opposite sides of the two sliding blocks (7) are fixedly connected with support plates (8). The outer side walls of the two guide vertical rods (6) are fitted with buffer springs (9). The two ends of the two buffer springs (9) are fixedly connected to the lower surface of the two sliding blocks (7) and the inner lower surface of the two buffer vertical grooves (5), respectively.

2. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: The upper surface of the rigid base (1) is symmetrically fixed with elastic supports (10), and the upper surfaces of the two elastic supports (10) are in contact with the lower surface of the unloading platform body (4).

3. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: Multiple hydraulic damping devices (11) are fixedly connected to the lower surface of the inner wall of the U-shaped fixing frame (2), and the top ends of the multiple hydraulic damping devices (11) are fixedly connected to the bottom end of the support plate (8).

4. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: The front and rear surfaces of the U-shaped fixing frame (2) are fixedly connected to fixing boxes (12). The interiors of the two fixing boxes (12) and the interiors of the two buffer vertical grooves (5) are respectively provided with protrusions (13). The interiors of the two fixing boxes (12) are slidably connected to movable plates (14). The opposite sides of the two movable plates (14) are fixedly connected to wedge-shaped extrusion blocks (15). The opposite sides of the two wedge-shaped extrusion blocks (15) pass through the two protrusions (13). The opposite sides of the two movable plates (14) are respectively fixedly connected to the interiors of the two fixing boxes (12) with multiple return springs (16). The opposite sides of the interiors of the two fixing boxes (12) are fixedly connected to pressure sensors (17).

5. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: A signal acquisition module (18) is fixedly connected to the rear of the inner lower surface of the U-shaped bracket (2), and a control module (19) is fixedly connected to the front of the inner lower surface of the U-shaped bracket (2).

6. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: The upper surface of the support plate (8) is fixedly connected with a buffer protective pad (20).

7. The overload-resistant buffer support structure for a tipping platform according to claim 1, characterized in that: Both sliding blocks (7) have insertion holes (21) on their left sides. Hydraulic telescopic rods (22) are symmetrically arranged on the left side of the U-shaped fixing frame (2). Locking pins (23) are fixedly connected to the right ends of the output shafts of both hydraulic telescopic rods (22). L-shaped stabilizing plates (24) are fixedly connected to the left side of the U-shaped fixing frame (2) at the left ends of both hydraulic telescopic rods (22).

Images